NOISSUE Flatten gui and logic libraries into MultiMC

39 files changed, 4811 insertions, 0 deletions

diff --git a/launcher/pages/modplatform/ImportPage.cpp b/launcher/pages/modplatform/ImportPage.cpp
new file mode 100644
index 00000000..c2369bdc
--- /dev/null
+++ b/launcher/pages/modplatform/ImportPage.cpp
@@ -0,0 +1,130 @@
+#include "ImportPage.h"
+#include "ui_ImportPage.h"
+
+#include "MultiMC.h"
+#include "dialogs/NewInstanceDialog.h"
+#include <QFileDialog>
+#include <QValidator>
+#include <InstanceImportTask.h>
+
+class UrlValidator : public QValidator
+{
+public:
+    using QValidator::QValidator;
+
+    State validate(QString &in, int &pos) const
+    {
+        const QUrl url(in);
+        if (url.isValid() && !url.isRelative() && !url.isEmpty())
+        {
+            return Acceptable;
+        }
+        else if (QFile::exists(in))
+        {
+            return Acceptable;
+        }
+        else
+        {
+            return Intermediate;
+        }
+    }
+};
+
+ImportPage::ImportPage(NewInstanceDialog* dialog, QWidget *parent)
+    : QWidget(parent), ui(new Ui::ImportPage), dialog(dialog)
+{
+    ui->setupUi(this);
+    ui->modpackEdit->setValidator(new UrlValidator(ui->modpackEdit));
+    connect(ui->modpackEdit, &QLineEdit::textChanged, this, &ImportPage::updateState);
+}
+
+ImportPage::~ImportPage()
+{
+    delete ui;
+}
+
+bool ImportPage::shouldDisplay() const
+{
+    return true;
+}
+
+void ImportPage::openedImpl()
+{
+    updateState();
+}
+
+void ImportPage::updateState()
+{
+    if(!isOpened)
+    {
+        return;
+    }
+    if(ui->modpackEdit->hasAcceptableInput())
+    {
+        QString input = ui->modpackEdit->text();
+        auto url = QUrl::fromUserInput(input);
+        if(url.isLocalFile())
+        {
+            // FIXME: actually do some validation of what's inside here... this is fake AF
+            QFileInfo fi(input);
+            if(fi.exists() && fi.suffix() == "zip")
+            {
+                QFileInfo fi(url.fileName());
+                dialog->setSuggestedPack(fi.completeBaseName(), new InstanceImportTask(url));
+                dialog->setSuggestedIcon("default");
+            }
+        }
+        else
+        {
+            if(input.endsWith("?client=y")) {
+                input.chop(9);
+                input.append("/file");
+                url = QUrl::fromUserInput(input);
+            }
+            // hook, line and sinker.
+            QFileInfo fi(url.fileName());
+            dialog->setSuggestedPack(fi.completeBaseName(), new InstanceImportTask(url));
+            dialog->setSuggestedIcon("default");
+        }
+    }
+    else
+    {
+        dialog->setSuggestedPack();
+    }
+}
+
+void ImportPage::setUrl(const QString& url)
+{
+    ui->modpackEdit->setText(url);
+    updateState();
+}
+
+void ImportPage::on_modpackBtn_clicked()
+{
+    const QUrl url = QFileDialog::getOpenFileUrl(this, tr("Choose modpack"), modpackUrl(), tr("Zip (*.zip)"));
+    if (url.isValid())
+    {
+        if (url.isLocalFile())
+        {
+            ui->modpackEdit->setText(url.toLocalFile());
+        }
+        else
+        {
+            ui->modpackEdit->setText(url.toString());
+        }
+    }
+}
+
+
+QUrl ImportPage::modpackUrl() const
+{
+    const QUrl url(ui->modpackEdit->text());
+    if (url.isValid() && !url.isRelative() && !url.host().isEmpty())
+    {
+        return url;
+    }
+    else
+    {
+        return QUrl::fromLocalFile(ui->modpackEdit->text());
+    }
+}
diff --git a/launcher/pages/modplatform/ImportPage.h b/launcher/pages/modplatform/ImportPage.h
new file mode 100644
index 00000000..67e3c201
--- /dev/null
+++ b/launcher/pages/modplatform/ImportPage.h
@@ -0,0 +1,70 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QWidget>
+
+#include "pages/BasePage.h"
+#include <MultiMC.h>
+#include "tasks/Task.h"
+
+namespace Ui
+{
+class ImportPage;
+}
+
+class NewInstanceDialog;
+
+class ImportPage : public QWidget, public BasePage
+{
+    Q_OBJECT
+
+public:
+    explicit ImportPage(NewInstanceDialog* dialog, QWidget *parent = 0);
+    virtual ~ImportPage();
+    virtual QString displayName() const override
+    {
+        return tr("Import from zip");
+    }
+    virtual QIcon icon() const override
+    {
+        return MMC->getThemedIcon("viewfolder");
+    }
+    virtual QString id() const override
+    {
+        return "import";
+    }
+    virtual QString helpPage() const override
+    {
+        return "Zip-import";
+    }
+    virtual bool shouldDisplay() const override;
+
+    void setUrl(const QString & url);
+    void openedImpl() override;
+
+private slots:
+    void on_modpackBtn_clicked();
+    void updateState();
+
+private:
+    QUrl modpackUrl() const;
+
+private:
+    Ui::ImportPage *ui = nullptr;
+    NewInstanceDialog* dialog = nullptr;
+};
+
diff --git a/launcher/pages/modplatform/ImportPage.ui b/launcher/pages/modplatform/ImportPage.ui
new file mode 100644
index 00000000..eb63cbe9
--- /dev/null
+++ b/launcher/pages/modplatform/ImportPage.ui
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ImportPage</class>
+ <widget class="QWidget" name="ImportPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>546</width>
+    <height>405</height>
+   </rect>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="1">
+    <widget class="QPushButton" name="modpackBtn">
+     <property name="text">
+      <string>Browse</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLineEdit" name="modpackEdit">
+     <property name="placeholderText">
+      <string notr="true">http://</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0" colspan="2">
+    <widget class="QLabel" name="modpackLabel">
+     <property name="text">
+      <string>Local file or link to a direct download:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0" colspan="2">
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/launcher/pages/modplatform/VanillaPage.cpp b/launcher/pages/modplatform/VanillaPage.cpp
new file mode 100644
index 00000000..02638315
--- /dev/null
+++ b/launcher/pages/modplatform/VanillaPage.cpp
@@ -0,0 +1,104 @@
+#include "VanillaPage.h"
+#include "ui_VanillaPage.h"
+
+#include "MultiMC.h"
+
+#include <meta/Index.h>
+#include <meta/VersionList.h>
+#include <dialogs/NewInstanceDialog.h>
+#include <Filter.h>
+#include <Env.h>
+#include <InstanceCreationTask.h>
+#include <QTabBar>
+
+VanillaPage::VanillaPage(NewInstanceDialog *dialog, QWidget *parent)
+    : QWidget(parent), dialog(dialog), ui(new Ui::VanillaPage)
+{
+    ui->setupUi(this);
+    ui->tabWidget->tabBar()->hide();
+    connect(ui->versionList, &VersionSelectWidget::selectedVersionChanged, this, &VanillaPage::setSelectedVersion);
+    filterChanged();
+    connect(ui->alphaFilter, &QCheckBox::stateChanged, this, &VanillaPage::filterChanged);
+    connect(ui->betaFilter, &QCheckBox::stateChanged, this, &VanillaPage::filterChanged);
+    connect(ui->snapshotFilter, &QCheckBox::stateChanged, this, &VanillaPage::filterChanged);
+    connect(ui->oldSnapshotFilter, &QCheckBox::stateChanged, this, &VanillaPage::filterChanged);
+    connect(ui->releaseFilter, &QCheckBox::stateChanged, this, &VanillaPage::filterChanged);
+    connect(ui->experimentsFilter, &QCheckBox::stateChanged, this, &VanillaPage::filterChanged);
+    connect(ui->refreshBtn, &QPushButton::clicked, this, &VanillaPage::refresh);
+}
+
+void VanillaPage::openedImpl()
+{
+    if(!initialized)
+    {
+        auto vlist = ENV.metadataIndex()->get("net.minecraft");
+        ui->versionList->initialize(vlist.get());
+        initialized = true;
+    }
+    else
+    {
+        suggestCurrent();
+    }
+}
+
+void VanillaPage::refresh()
+{
+    ui->versionList->loadList();
+}
+
+void VanillaPage::filterChanged()
+{
+    QStringList out;
+    if(ui->alphaFilter->isChecked())
+        out << "(old_alpha)";
+    if(ui->betaFilter->isChecked())
+        out << "(old_beta)";
+    if(ui->snapshotFilter->isChecked())
+        out << "(snapshot)";
+    if(ui->oldSnapshotFilter->isChecked())
+        out << "(old_snapshot)";
+    if(ui->releaseFilter->isChecked())
+        out << "(release)";
+    if(ui->experimentsFilter->isChecked())
+        out << "(experiment)";
+    auto regexp = out.join('|');
+    ui->versionList->setFilter(BaseVersionList::TypeRole, new RegexpFilter(regexp, false));
+}
+
+VanillaPage::~VanillaPage()
+{
+    delete ui;
+}
+
+bool VanillaPage::shouldDisplay() const
+{
+    return true;
+}
+
+BaseVersionPtr VanillaPage::selectedVersion() const
+{
+    return m_selectedVersion;
+}
+
+void VanillaPage::suggestCurrent()
+{
+    if (!isOpened)
+    {
+        return;
+    }
+        
+    if(!m_selectedVersion)
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    dialog->setSuggestedPack(m_selectedVersion->descriptor(), new InstanceCreationTask(m_selectedVersion));
+    dialog->setSuggestedIcon("default");
+}
+
+void VanillaPage::setSelectedVersion(BaseVersionPtr version)
+{
+    m_selectedVersion = version;
+    suggestCurrent();
+}
diff --git a/launcher/pages/modplatform/VanillaPage.h b/launcher/pages/modplatform/VanillaPage.h
new file mode 100644
index 00000000..af6fd392
--- /dev/null
+++ b/launcher/pages/modplatform/VanillaPage.h
@@ -0,0 +1,75 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QWidget>
+
+#include "pages/BasePage.h"
+#include <MultiMC.h>
+#include "tasks/Task.h"
+
+namespace Ui
+{
+class VanillaPage;
+}
+
+class NewInstanceDialog;
+
+class VanillaPage : public QWidget, public BasePage
+{
+    Q_OBJECT
+
+public:
+    explicit VanillaPage(NewInstanceDialog *dialog, QWidget *parent = 0);
+    virtual ~VanillaPage();
+    virtual QString displayName() const override
+    {
+        return tr("Vanilla");
+    }
+    virtual QIcon icon() const override
+    {
+        return MMC->getThemedIcon("minecraft");
+    }
+    virtual QString id() const override
+    {
+        return "vanilla";
+    }
+    virtual QString helpPage() const override
+    {
+        return "Vanilla-platform";
+    }
+    virtual bool shouldDisplay() const override;
+    void openedImpl() override;
+
+    BaseVersionPtr selectedVersion() const;
+
+public slots:
+    void setSelectedVersion(BaseVersionPtr version);
+
+private slots:
+    void filterChanged();
+
+private:
+    void refresh();
+    void suggestCurrent();
+
+private:
+    bool initialized = false;
+    NewInstanceDialog *dialog = nullptr;
+    Ui::VanillaPage *ui = nullptr;
+    bool m_versionSetByUser = false;
+    BaseVersionPtr m_selectedVersion;
+};
diff --git a/launcher/pages/modplatform/VanillaPage.ui b/launcher/pages/modplatform/VanillaPage.ui
new file mode 100644
index 00000000..47effc86
--- /dev/null
+++ b/launcher/pages/modplatform/VanillaPage.ui
@@ -0,0 +1,169 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>VanillaPage</class>
+ <widget class="QWidget" name="VanillaPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>815</width>
+    <height>607</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_5">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QTabWidget" name="tabWidget">
+     <property name="currentIndex">
+      <number>0</number>
+     </property>
+     <widget class="QWidget" name="tab">
+      <attribute name="title">
+       <string notr="true"/>
+      </attribute>
+      <layout class="QGridLayout" name="gridLayout_2">
+       <item row="0" column="1">
+        <layout class="QVBoxLayout" name="verticalLayout">
+         <item>
+          <widget class="QLabel" name="label">
+           <property name="text">
+            <string>Filter</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="releaseFilter">
+           <property name="text">
+            <string>Releases</string>
+           </property>
+           <property name="checkable">
+            <bool>true</bool>
+           </property>
+           <property name="checked">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="snapshotFilter">
+           <property name="text">
+            <string>Snapshots</string>
+           </property>
+           <property name="checkable">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="oldSnapshotFilter">
+           <property name="text">
+            <string>Old Snapshots</string>
+           </property>
+           <property name="checkable">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="betaFilter">
+           <property name="text">
+            <string>Betas</string>
+           </property>
+           <property name="checkable">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="alphaFilter">
+           <property name="text">
+            <string>Alphas</string>
+           </property>
+           <property name="checkable">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="experimentsFilter">
+           <property name="text">
+            <string>Experiments</string>
+           </property>
+           <property name="checkable">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="verticalSpacer">
+           <property name="orientation">
+            <enum>Qt::Vertical</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>20</width>
+             <height>40</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+         <item>
+          <widget class="QPushButton" name="refreshBtn">
+           <property name="text">
+            <string>Refresh</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item row="0" column="0">
+        <widget class="VersionSelectWidget" name="versionList" native="true">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>VersionSelectWidget</class>
+   <extends>QWidget</extends>
+   <header>widgets/VersionSelectWidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <tabstops>
+  <tabstop>tabWidget</tabstop>
+  <tabstop>releaseFilter</tabstop>
+  <tabstop>snapshotFilter</tabstop>
+  <tabstop>oldSnapshotFilter</tabstop>
+  <tabstop>betaFilter</tabstop>
+  <tabstop>alphaFilter</tabstop>
+  <tabstop>experimentsFilter</tabstop>
+  <tabstop>refreshBtn</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/launcher/pages/modplatform/atlauncher/AtlFilterModel.cpp b/launcher/pages/modplatform/atlauncher/AtlFilterModel.cpp
new file mode 100644
index 00000000..b5d8f22b
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlFilterModel.cpp
@@ -0,0 +1,81 @@
+#include "AtlFilterModel.h"
+
+#include <QDebug>
+
+#include <modplatform/atlauncher/ATLPackIndex.h>
+#include <Version.h>
+#include <MMCStrings.h>
+
+namespace Atl {
+
+FilterModel::FilterModel(QObject *parent) : QSortFilterProxyModel(parent)
+{
+    currentSorting = Sorting::ByPopularity;
+    sortings.insert(tr("Sort by popularity"), Sorting::ByPopularity);
+    sortings.insert(tr("Sort by name"), Sorting::ByName);
+    sortings.insert(tr("Sort by game version"), Sorting::ByGameVersion);
+
+    searchTerm = "";
+}
+
+const QMap<QString, FilterModel::Sorting> FilterModel::getAvailableSortings()
+{
+    return sortings;
+}
+
+QString FilterModel::translateCurrentSorting()
+{
+    return sortings.key(currentSorting);
+}
+
+void FilterModel::setSorting(Sorting sorting)
+{
+    currentSorting = sorting;
+    invalidate();
+}
+
+FilterModel::Sorting FilterModel::getCurrentSorting()
+{
+    return currentSorting;
+}
+
+void FilterModel::setSearchTerm(const QString term)
+{
+    searchTerm = term.trimmed();
+    invalidate();
+}
+
+bool FilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+{
+    if (searchTerm.isEmpty()) {
+        return true;
+    }
+
+    QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
+    ATLauncher::IndexedPack pack = sourceModel()->data(index, Qt::UserRole).value<ATLauncher::IndexedPack>();
+    return pack.name.contains(searchTerm, Qt::CaseInsensitive);
+}
+
+bool FilterModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
+{
+    ATLauncher::IndexedPack leftPack = sourceModel()->data(left, Qt::UserRole).value<ATLauncher::IndexedPack>();
+    ATLauncher::IndexedPack rightPack = sourceModel()->data(right, Qt::UserRole).value<ATLauncher::IndexedPack>();
+
+    if (currentSorting == ByPopularity) {
+        return leftPack.position > rightPack.position;
+    }
+    else if (currentSorting == ByGameVersion) {
+        Version lv(leftPack.versions.at(0).minecraft);
+        Version rv(rightPack.versions.at(0).minecraft);
+        return lv < rv;
+    }
+    else if (currentSorting == ByName) {
+        return Strings::naturalCompare(leftPack.name, rightPack.name, Qt::CaseSensitive) >= 0;
+    }
+
+    // Invalid sorting set, somehow...
+    qWarning() << "Invalid sorting set!";
+    return true;
+}
+
+}
diff --git a/launcher/pages/modplatform/atlauncher/AtlFilterModel.h b/launcher/pages/modplatform/atlauncher/AtlFilterModel.h
new file mode 100644
index 00000000..bd72ad91
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlFilterModel.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include <QtCore/QSortFilterProxyModel>
+
+namespace Atl {
+
+class FilterModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+public:
+    FilterModel(QObject* parent = Q_NULLPTR);
+    enum Sorting {
+        ByPopularity,
+        ByGameVersion,
+        ByName,
+    };
+    const QMap<QString, Sorting> getAvailableSortings();
+    QString translateCurrentSorting();
+    void setSorting(Sorting sorting);
+    Sorting getCurrentSorting();
+    void setSearchTerm(QString term);
+
+protected:
+    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
+    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
+
+private:
+    QMap<QString, Sorting> sortings;
+    Sorting currentSorting;
+    QString searchTerm;
+
+};
+
+}
diff --git a/launcher/pages/modplatform/atlauncher/AtlListModel.cpp b/launcher/pages/modplatform/atlauncher/AtlListModel.cpp
new file mode 100644
index 00000000..f3be6198
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlListModel.cpp
@@ -0,0 +1,194 @@
+#include "AtlListModel.h"
+
+#include <BuildConfig.h>
+#include <MultiMC.h>
+#include <Env.h>
+#include <Json.h>
+
+namespace Atl {
+
+ListModel::ListModel(QObject *parent) : QAbstractListModel(parent)
+{
+}
+
+ListModel::~ListModel()
+{
+}
+
+int ListModel::rowCount(const QModelIndex &parent) const
+{
+    return modpacks.size();
+}
+
+int ListModel::columnCount(const QModelIndex &parent) const
+{
+    return 1;
+}
+
+QVariant ListModel::data(const QModelIndex &index, int role) const
+{
+    int pos = index.row();
+    if(pos >= modpacks.size() || pos < 0 || !index.isValid())
+    {
+        return QString("INVALID INDEX %1").arg(pos);
+    }
+
+    ATLauncher::IndexedPack pack = modpacks.at(pos);
+    if(role == Qt::DisplayRole)
+    {
+        return pack.name;
+    }
+    else if (role == Qt::ToolTipRole)
+    {
+        return pack.name;
+    }
+    else if(role == Qt::DecorationRole)
+    {
+        if(m_logoMap.contains(pack.safeName))
+        {
+            return (m_logoMap.value(pack.safeName));
+        }
+        auto icon = MMC->getThemedIcon("atlauncher-placeholder");
+
+        auto url = QString(BuildConfig.ATL_DOWNLOAD_SERVER_URL + "launcher/images/%1.png").arg(pack.safeName.toLower());
+        ((ListModel *)this)->requestLogo(pack.safeName, url);
+
+        return icon;
+    }
+    else if(role == Qt::UserRole)
+    {
+        QVariant v;
+        v.setValue(pack);
+        return v;
+    }
+
+    return QVariant();
+}
+
+void ListModel::request()
+{
+    beginResetModel();
+    modpacks.clear();
+    endResetModel();
+
+    auto *netJob = new NetJob("Atl::Request");
+    auto url = QString(BuildConfig.ATL_DOWNLOAD_SERVER_URL + "launcher/json/packsnew.json");
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(url), &response));
+    jobPtr = netJob;
+    jobPtr->start();
+
+    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::requestFinished);
+    QObject::connect(netJob, &NetJob::failed, this, &ListModel::requestFailed);
+}
+
+void ListModel::requestFinished()
+{
+    jobPtr.reset();
+
+    QJsonParseError parse_error;
+    QJsonDocument doc = QJsonDocument::fromJson(response, &parse_error);
+    if(parse_error.error != QJsonParseError::NoError) {
+        qWarning() << "Error while parsing JSON response from ATL at " << parse_error.offset << " reason: " << parse_error.errorString();
+        qWarning() << response;
+        return;
+    }
+
+    QList<ATLauncher::IndexedPack> newList;
+
+    auto packs = doc.array();
+    for(auto packRaw : packs) {
+        auto packObj = packRaw.toObject();
+
+        ATLauncher::IndexedPack pack;
+
+        try {
+            ATLauncher::loadIndexedPack(pack, packObj);
+        }
+        catch (const JSONValidationError &e) {
+            qDebug() << QString::fromUtf8(response);
+            qWarning() << "Error while reading pack manifest from ATLauncher: " << e.cause();
+            return;
+        }
+
+        // ignore packs without a published version
+        if(pack.versions.length() == 0) continue;
+        // only display public packs (for now)
+        if(pack.type != ATLauncher::PackType::Public) continue;
+        // ignore "system" packs (Vanilla, Vanilla with Forge, etc)
+        if(pack.system) continue;
+
+        newList.append(pack);
+    }
+
+    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
+    modpacks.append(newList);
+    endInsertRows();
+}
+
+void ListModel::requestFailed(QString reason)
+{
+    jobPtr.reset();
+}
+
+void ListModel::getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback)
+{
+    if(m_logoMap.contains(logo))
+    {
+        callback(ENV.metacache()->resolveEntry("ATLauncherPacks", QString("logos/%1").arg(logo.section(".", 0, 0)))->getFullPath());
+    }
+    else
+    {
+        requestLogo(logo, logoUrl);
+    }
+}
+
+void ListModel::logoFailed(QString logo)
+{
+    m_failedLogos.append(logo);
+    m_loadingLogos.removeAll(logo);
+}
+
+void ListModel::logoLoaded(QString logo, QIcon out)
+{
+    m_loadingLogos.removeAll(logo);
+    m_logoMap.insert(logo, out);
+
+    for(int i = 0; i < modpacks.size(); i++) {
+        if(modpacks[i].safeName == logo) {
+            emit dataChanged(createIndex(i, 0), createIndex(i, 0), {Qt::DecorationRole});
+        }
+    }
+}
+
+void ListModel::requestLogo(QString file, QString url)
+{
+    if(m_loadingLogos.contains(file) || m_failedLogos.contains(file))
+    {
+        return;
+    }
+
+    MetaEntryPtr entry = ENV.metacache()->resolveEntry("ATLauncherPacks", QString("logos/%1").arg(file.section(".", 0, 0)));
+    NetJob *job = new NetJob(QString("ATLauncher Icon Download %1").arg(file));
+    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+
+    auto fullPath = entry->getFullPath();
+    QObject::connect(job, &NetJob::succeeded, this, [this, file, fullPath]
+    {
+        emit logoLoaded(file, QIcon(fullPath));
+        if(waitingCallbacks.contains(file))
+        {
+            waitingCallbacks.value(file)(fullPath);
+        }
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, file]
+    {
+        emit logoFailed(file);
+    });
+
+    job->start();
+
+    m_loadingLogos.append(file);
+}
+
+}
diff --git a/launcher/pages/modplatform/atlauncher/AtlListModel.h b/launcher/pages/modplatform/atlauncher/AtlListModel.h
new file mode 100644
index 00000000..2d30a64e
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlListModel.h
@@ -0,0 +1,52 @@
+#pragma once
+
+#include <QAbstractListModel>
+
+#include "net/NetJob.h"
+#include <QIcon>
+#include <modplatform/atlauncher/ATLPackIndex.h>
+
+namespace Atl {
+
+typedef QMap<QString, QIcon> LogoMap;
+typedef std::function<void(QString)> LogoCallback;
+
+class ListModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+public:
+    ListModel(QObject *parent);
+    virtual ~ListModel();
+
+    int rowCount(const QModelIndex &parent) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+
+    void request();
+
+    void getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback);
+
+private slots:
+    void requestFinished();
+    void requestFailed(QString reason);
+
+    void logoFailed(QString logo);
+    void logoLoaded(QString logo, QIcon out);
+
+private:
+    void requestLogo(QString file, QString url);
+
+private:
+    QList<ATLauncher::IndexedPack> modpacks;
+
+    QStringList m_failedLogos;
+    QStringList m_loadingLogos;
+    LogoMap m_logoMap;
+    QMap<QString, LogoCallback> waitingCallbacks;
+
+    NetJobPtr jobPtr;
+    QByteArray response;
+};
+
+}
diff --git a/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.cpp b/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.cpp
new file mode 100644
index 00000000..14bbd18b
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.cpp
@@ -0,0 +1,209 @@
+#include "AtlOptionalModDialog.h"
+#include "ui_AtlOptionalModDialog.h"
+
+AtlOptionalModListModel::AtlOptionalModListModel(QWidget *parent, QVector<ATLauncher::VersionMod> mods)
+    : QAbstractListModel(parent), m_mods(mods) {
+
+    // fill mod index
+    for (int i = 0; i < m_mods.size(); i++) {
+        auto mod = m_mods.at(i);
+        m_index[mod.name] = i;
+    }
+    // set initial state
+    for (int i = 0; i < m_mods.size(); i++) {
+        auto mod = m_mods.at(i);
+        m_selection[mod.name] = false;
+        setMod(mod, i, mod.selected, false);
+    }
+}
+
+QVector<QString> AtlOptionalModListModel::getResult() {
+    QVector<QString> result;
+
+    for (const auto& mod : m_mods) {
+        if (m_selection[mod.name]) {
+            result.push_back(mod.name);
+        }
+    }
+
+    return result;
+}
+
+int AtlOptionalModListModel::rowCount(const QModelIndex &parent) const {
+    return m_mods.size();
+}
+
+int AtlOptionalModListModel::columnCount(const QModelIndex &parent) const {
+    // Enabled, Name, Description
+    return 3;
+}
+
+QVariant AtlOptionalModListModel::data(const QModelIndex &index, int role) const {
+    auto row = index.row();
+    auto mod = m_mods.at(row);
+
+    if (role == Qt::DisplayRole) {
+        if (index.column() == NameColumn) {
+            return mod.name;
+        }
+        if (index.column() == DescriptionColumn) {
+            return mod.description;
+        }
+    }
+    else if (role == Qt::ToolTipRole) {
+        if (index.column() == DescriptionColumn) {
+            return mod.description;
+        }
+    }
+    else if (role == Qt::CheckStateRole) {
+        if (index.column() == EnabledColumn) {
+            return m_selection[mod.name] ? Qt::Checked : Qt::Unchecked;
+        }
+    }
+
+    return QVariant();
+}
+
+bool AtlOptionalModListModel::setData(const QModelIndex &index, const QVariant &value, int role) {
+    if (role == Qt::CheckStateRole) {
+        auto row = index.row();
+        auto mod = m_mods.at(row);
+
+        toggleMod(mod, row);
+        return true;
+    }
+
+    return false;
+}
+
+QVariant AtlOptionalModListModel::headerData(int section, Qt::Orientation orientation, int role) const {
+    if (role == Qt::DisplayRole && orientation == Qt::Horizontal) {
+        switch (section) {
+            case EnabledColumn:
+                return QString();
+            case NameColumn:
+                return QString("Name");
+            case DescriptionColumn:
+                return QString("Description");
+        }
+    }
+
+    return QVariant();
+}
+
+Qt::ItemFlags AtlOptionalModListModel::flags(const QModelIndex &index) const {
+    auto flags = QAbstractListModel::flags(index);
+    if (index.isValid() && index.column() == EnabledColumn) {
+        flags |= Qt::ItemIsUserCheckable;
+    }
+    return flags;
+}
+
+void AtlOptionalModListModel::selectRecommended() {
+    for (const auto& mod : m_mods) {
+        m_selection[mod.name] = mod.recommended;
+    }
+
+    emit dataChanged(AtlOptionalModListModel::index(0, EnabledColumn),
+                     AtlOptionalModListModel::index(m_mods.size() - 1, EnabledColumn));
+}
+
+void AtlOptionalModListModel::clearAll() {
+    for (const auto& mod : m_mods) {
+        m_selection[mod.name] = false;
+    }
+
+    emit dataChanged(AtlOptionalModListModel::index(0, EnabledColumn),
+                     AtlOptionalModListModel::index(m_mods.size() - 1, EnabledColumn));
+}
+
+void AtlOptionalModListModel::toggleMod(ATLauncher::VersionMod mod, int index) {
+    setMod(mod, index, !m_selection[mod.name]);
+}
+
+void AtlOptionalModListModel::setMod(ATLauncher::VersionMod mod, int index, bool enable, bool shouldEmit) {
+    if (m_selection[mod.name] == enable) return;
+
+    m_selection[mod.name] = enable;
+
+    // disable other mods in the group, if applicable
+    if (enable && !mod.group.isEmpty()) {
+        for (int i = 0; i < m_mods.size(); i++) {
+            if (index == i) continue;
+            auto other = m_mods.at(i);
+
+            if (mod.group == other.group) {
+                setMod(other, i, false, shouldEmit);
+            }
+        }
+    }
+
+    for (const auto& dependencyName : mod.depends) {
+        auto dependencyIndex = m_index[dependencyName];
+        auto dependencyMod = m_mods.at(dependencyIndex);
+
+        // enable/disable dependencies
+        if (enable) {
+            setMod(dependencyMod, dependencyIndex, true, shouldEmit);
+        }
+
+        // if the dependency is 'effectively hidden', then track which mods
+        // depend on it - so we can efficiently disable it when no more dependents
+        // depend on it.
+        auto dependants = m_dependants[dependencyName];
+
+        if (enable) {
+            dependants.append(mod.name);
+        }
+        else {
+            dependants.removeAll(mod.name);
+
+            // if there are no longer any dependents, let's disable the mod
+            if (dependencyMod.effectively_hidden && dependants.isEmpty()) {
+                setMod(dependencyMod, dependencyIndex, false, shouldEmit);
+            }
+        }
+    }
+
+    // disable mods that depend on this one, if disabling
+    if (!enable) {
+        auto dependants = m_dependants[mod.name];
+        for (const auto& dependencyName : dependants) {
+            auto dependencyIndex = m_index[dependencyName];
+            auto dependencyMod = m_mods.at(dependencyIndex);
+
+            setMod(dependencyMod, dependencyIndex, false, shouldEmit);
+        }
+    }
+
+    if (shouldEmit) {
+        emit dataChanged(AtlOptionalModListModel::index(index, EnabledColumn),
+                         AtlOptionalModListModel::index(index, EnabledColumn));
+    }
+}
+
+
+AtlOptionalModDialog::AtlOptionalModDialog(QWidget *parent, QVector<ATLauncher::VersionMod> mods)
+    : QDialog(parent), ui(new Ui::AtlOptionalModDialog) {
+    ui->setupUi(this);
+
+    listModel = new AtlOptionalModListModel(this, mods);
+    ui->treeView->setModel(listModel);
+
+    ui->treeView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    ui->treeView->header()->setSectionResizeMode(
+            AtlOptionalModListModel::NameColumn, QHeaderView::ResizeToContents);
+    ui->treeView->header()->setSectionResizeMode(
+            AtlOptionalModListModel::DescriptionColumn, QHeaderView::Stretch);
+
+    connect(ui->selectRecommendedButton, &QPushButton::pressed,
+            listModel, &AtlOptionalModListModel::selectRecommended);
+    connect(ui->clearAllButton, &QPushButton::pressed,
+            listModel, &AtlOptionalModListModel::clearAll);
+    connect(ui->installButton, &QPushButton::pressed,
+            this, &QDialog::close);
+}
+
+AtlOptionalModDialog::~AtlOptionalModDialog() {
+    delete ui;
+}
diff --git a/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.h b/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.h
new file mode 100644
index 00000000..a1df43f6
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.h
@@ -0,0 +1,66 @@
+#pragma once
+
+#include <QDialog>
+#include <QAbstractListModel>
+
+#include "modplatform/atlauncher/ATLPackIndex.h"
+
+namespace Ui {
+class AtlOptionalModDialog;
+}
+
+class AtlOptionalModListModel : public QAbstractListModel {
+    Q_OBJECT
+
+public:
+    enum Columns
+    {
+        EnabledColumn = 0,
+        NameColumn,
+        DescriptionColumn,
+    };
+
+    AtlOptionalModListModel(QWidget *parent, QVector<ATLauncher::VersionMod> mods);
+
+    QVector<QString> getResult();
+
+    int rowCount(const QModelIndex &parent) const override;
+    int columnCount(const QModelIndex &parent) const override;
+
+    QVariant data(const QModelIndex &index, int role) const override;
+    bool setData(const QModelIndex &index, const QVariant &value, int role) override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+
+public slots:
+    void selectRecommended();
+    void clearAll();
+
+private:
+    void toggleMod(ATLauncher::VersionMod mod, int index);
+    void setMod(ATLauncher::VersionMod mod, int index, bool enable, bool shouldEmit = true);
+
+private:
+    QVector<ATLauncher::VersionMod> m_mods;
+    QMap<QString, bool> m_selection;
+    QMap<QString, int> m_index;
+    QMap<QString, QVector<QString>> m_dependants;
+};
+
+class AtlOptionalModDialog : public QDialog {
+    Q_OBJECT
+
+public:
+    AtlOptionalModDialog(QWidget *parent, QVector<ATLauncher::VersionMod> mods);
+    ~AtlOptionalModDialog() override;
+
+    QVector<QString> getResult() {
+        return listModel->getResult();
+    }
+
+private:
+    Ui::AtlOptionalModDialog *ui;
+
+    AtlOptionalModListModel *listModel;
+};
diff --git a/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.ui b/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.ui
new file mode 100644
index 00000000..5d3193a4
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlOptionalModDialog.ui
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>AtlOptionalModDialog</class>
+ <widget class="QDialog" name="AtlOptionalModDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>550</width>
+    <height>310</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Select Mods To Install</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout_2">
+   <item row="1" column="3">
+    <widget class="QPushButton" name="installButton">
+     <property name="text">
+      <string>Install</string>
+     </property>
+     <property name="default">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="selectRecommendedButton">
+     <property name="text">
+      <string>Select Recommended</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QPushButton" name="shareCodeButton">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="text">
+      <string>Use Share Code</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="2">
+    <widget class="QPushButton" name="clearAllButton">
+     <property name="text">
+      <string>Clear All</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0" colspan="4">
+    <widget class="ModListView" name="treeView"/>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ModListView</class>
+   <extends>QTreeView</extends>
+   <header>widgets/ModListView.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/launcher/pages/modplatform/atlauncher/AtlPage.cpp b/launcher/pages/modplatform/atlauncher/AtlPage.cpp
new file mode 100644
index 00000000..9fdf111f
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlPage.cpp
@@ -0,0 +1,175 @@
+#include "AtlPage.h"
+#include "ui_AtlPage.h"
+
+#include "dialogs/NewInstanceDialog.h"
+#include "AtlOptionalModDialog.h"
+#include <modplatform/atlauncher/ATLPackInstallTask.h>
+#include <BuildConfig.h>
+#include <dialogs/VersionSelectDialog.h>
+
+AtlPage::AtlPage(NewInstanceDialog* dialog, QWidget *parent)
+        : QWidget(parent), ui(new Ui::AtlPage), dialog(dialog)
+{
+    ui->setupUi(this);
+
+    filterModel = new Atl::FilterModel(this);
+    listModel = new Atl::ListModel(this);
+    filterModel->setSourceModel(listModel);
+    ui->packView->setModel(filterModel);
+    ui->packView->setSortingEnabled(true);
+
+    ui->packView->header()->hide();
+    ui->packView->setIndentation(0);
+
+    ui->versionSelectionBox->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+    ui->versionSelectionBox->view()->parentWidget()->setMaximumHeight(300);
+
+    for(int i = 0; i < filterModel->getAvailableSortings().size(); i++)
+    {
+        ui->sortByBox->addItem(filterModel->getAvailableSortings().keys().at(i));
+    }
+    ui->sortByBox->setCurrentText(filterModel->translateCurrentSorting());
+
+    connect(ui->searchEdit, &QLineEdit::textChanged, this, &AtlPage::triggerSearch);
+    connect(ui->resetButton, &QPushButton::clicked, this, &AtlPage::resetSearch);
+    connect(ui->sortByBox, &QComboBox::currentTextChanged, this, &AtlPage::onSortingSelectionChanged);
+    connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &AtlPage::onSelectionChanged);
+    connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this, &AtlPage::onVersionSelectionChanged);
+}
+
+AtlPage::~AtlPage()
+{
+    delete ui;
+}
+
+bool AtlPage::shouldDisplay() const
+{
+    return true;
+}
+
+void AtlPage::openedImpl()
+{
+    if(!initialized)
+    {
+        listModel->request();
+        initialized = true;
+    }
+
+    suggestCurrent();
+}
+
+void AtlPage::suggestCurrent()
+{
+    if(!isOpened)
+    {
+        return;
+    }
+
+    if (selectedVersion.isEmpty())
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    dialog->setSuggestedPack(selected.name, new ATLauncher::PackInstallTask(this, selected.safeName, selectedVersion));
+    auto editedLogoName = selected.safeName;
+    auto url = QString(BuildConfig.ATL_DOWNLOAD_SERVER_URL + "launcher/images/%1.png").arg(selected.safeName.toLower());
+    listModel->getLogo(selected.safeName, url, [this, editedLogoName](QString logo)
+    {
+        dialog->setSuggestedIconFromFile(logo, editedLogoName);
+    });
+}
+
+void AtlPage::triggerSearch()
+{
+    filterModel->setSearchTerm(ui->searchEdit->text());
+}
+
+void AtlPage::resetSearch()
+{
+    ui->searchEdit->setText("");
+}
+
+void AtlPage::onSortingSelectionChanged(QString data)
+{
+    auto toSet = filterModel->getAvailableSortings().value(data);
+    filterModel->setSorting(toSet);
+}
+
+void AtlPage::onSelectionChanged(QModelIndex first, QModelIndex second)
+{
+    ui->versionSelectionBox->clear();
+
+    if(!first.isValid())
+    {
+        if(isOpened)
+        {
+            dialog->setSuggestedPack();
+        }
+        return;
+    }
+
+    selected = filterModel->data(first, Qt::UserRole).value<ATLauncher::IndexedPack>();
+
+    ui->packDescription->setHtml(selected.description.replace("\n", "<br>"));
+
+    for(const auto& version : selected.versions) {
+        ui->versionSelectionBox->addItem(version.version);
+    }
+
+    suggestCurrent();
+}
+
+void AtlPage::onVersionSelectionChanged(QString data)
+{
+    if(data.isNull() || data.isEmpty())
+    {
+        selectedVersion = "";
+        return;
+    }
+
+    selectedVersion = data;
+    suggestCurrent();
+}
+
+QVector<QString> AtlPage::chooseOptionalMods(QVector<ATLauncher::VersionMod> mods) {
+    AtlOptionalModDialog optionalModDialog(this, mods);
+    optionalModDialog.exec();
+    return optionalModDialog.getResult();
+}
+
+QString AtlPage::chooseVersion(Meta::VersionListPtr vlist, QString minecraftVersion) {
+    VersionSelectDialog vselect(vlist.get(), "Choose Version", MMC->activeWindow(), false);
+    if (minecraftVersion != Q_NULLPTR) {
+        vselect.setExactFilter(BaseVersionList::ParentVersionRole, minecraftVersion);
+        vselect.setEmptyString(tr("No versions are currently available for Minecraft %1").arg(minecraftVersion));
+    }
+    else {
+        vselect.setEmptyString(tr("No versions are currently available"));
+    }
+    vselect.setEmptyErrorString(tr("Couldn't load or download the version lists!"));
+
+    // select recommended build
+    for (int i = 0; i < vlist->versions().size(); i++) {
+        auto version = vlist->versions().at(i);
+        auto reqs = version->requires();
+
+        // filter by minecraft version, if the loader depends on a certain version.
+        if (minecraftVersion != Q_NULLPTR) {
+            auto iter = std::find_if(reqs.begin(), reqs.end(), [](const Meta::Require &req) {
+                return req.uid == "net.minecraft";
+            });
+            if (iter == reqs.end()) continue;
+            if (iter->equalsVersion != minecraftVersion) continue;
+        }
+
+        // first recommended build we find, we use.
+        if (version->isRecommended()) {
+            vselect.setCurrentVersion(version->descriptor());
+            break;
+        }
+    }
+
+    vselect.exec();
+    return vselect.selectedVersion()->descriptor();
+}
diff --git a/launcher/pages/modplatform/atlauncher/AtlPage.h b/launcher/pages/modplatform/atlauncher/AtlPage.h
new file mode 100644
index 00000000..932ec6a6
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlPage.h
@@ -0,0 +1,87 @@
+/* Copyright 2013-2019 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "AtlFilterModel.h"
+#include "AtlListModel.h"
+
+#include <QWidget>
+#include <modplatform/atlauncher/ATLPackInstallTask.h>
+
+#include "MultiMC.h"
+#include "pages/BasePage.h"
+#include "tasks/Task.h"
+
+namespace Ui
+{
+    class AtlPage;
+}
+
+class NewInstanceDialog;
+
+class AtlPage : public QWidget, public BasePage, public ATLauncher::UserInteractionSupport
+{
+Q_OBJECT
+
+public:
+    explicit AtlPage(NewInstanceDialog* dialog, QWidget *parent = 0);
+    virtual ~AtlPage();
+    virtual QString displayName() const override
+    {
+        return tr("ATLauncher");
+    }
+    virtual QIcon icon() const override
+    {
+        return MMC->getThemedIcon("atlauncher");
+    }
+    virtual QString id() const override
+    {
+        return "atl";
+    }
+    virtual QString helpPage() const override
+    {
+        return "ATL-platform";
+    }
+    virtual bool shouldDisplay() const override;
+
+    void openedImpl() override;
+
+private:
+    void suggestCurrent();
+
+    QString chooseVersion(Meta::VersionListPtr vlist, QString minecraftVersion) override;
+    QVector<QString> chooseOptionalMods(QVector<ATLauncher::VersionMod> mods) override;
+
+private slots:
+    void triggerSearch();
+    void resetSearch();
+
+    void onSortingSelectionChanged(QString data);
+
+    void onSelectionChanged(QModelIndex first, QModelIndex second);
+    void onVersionSelectionChanged(QString data);
+
+private:
+    Ui::AtlPage *ui = nullptr;
+    NewInstanceDialog* dialog = nullptr;
+    Atl::ListModel* listModel = nullptr;
+    Atl::FilterModel* filterModel = nullptr;
+
+    ATLauncher::IndexedPack selected;
+    QString selectedVersion;
+
+    bool initialized = false;
+};
diff --git a/launcher/pages/modplatform/atlauncher/AtlPage.ui b/launcher/pages/modplatform/atlauncher/AtlPage.ui
new file mode 100644
index 00000000..f16c24b8
--- /dev/null
+++ b/launcher/pages/modplatform/atlauncher/AtlPage.ui
@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>AtlPage</class>
+ <widget class="QWidget" name="AtlPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>837</width>
+    <height>685</height>
+   </rect>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="0" colspan="2">
+    <layout class="QGridLayout" name="gridLayout_3">
+     <item row="1" column="0">
+      <widget class="QTreeView" name="packView">
+       <property name="iconSize">
+        <size>
+         <width>96</width>
+         <height>48</height>
+        </size>
+       </property>
+       <property name="alternatingRowColors">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QTextBrowser" name="packDescription">
+       <property name="openExternalLinks">
+        <bool>true</bool>
+       </property>
+       <property name="openLinks">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0" colspan="2">
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Warning: This is still a work in progress. If you run into issues with the imported modpack, it may be a bug.</string>
+       </property>
+       <property name="wordWrap">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="2" column="0" colspan="2">
+    <layout class="QGridLayout" name="gridLayout_4" columnstretch="0,0,0" rowminimumheight="0" columnminimumwidth="0,0,0">
+     <item row="0" column="2">
+      <widget class="QComboBox" name="versionSelectionBox"/>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Version selected:</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QComboBox" name="sortByBox"/>
+     </item>
+    </layout>
+   </item>
+   <item row="0" column="1">
+    <widget class="QPushButton" name="resetButton">
+     <property name="text">
+      <string>Reset</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLineEdit" name="searchEdit">
+     <property name="placeholderText">
+      <string>Search and filter ...</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <tabstops>
+  <tabstop>searchEdit</tabstop>
+  <tabstop>resetButton</tabstop>
+  <tabstop>packView</tabstop>
+  <tabstop>packDescription</tabstop>
+  <tabstop>sortByBox</tabstop>
+  <tabstop>versionSelectionBox</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/launcher/pages/modplatform/flame/FlameModel.cpp b/launcher/pages/modplatform/flame/FlameModel.cpp
new file mode 100644
index 00000000..228a88c5
--- /dev/null
+++ b/launcher/pages/modplatform/flame/FlameModel.cpp
@@ -0,0 +1,259 @@
+#include "FlameModel.h"
+#include "MultiMC.h"
+#include <Json.h>
+
+#include <MMCStrings.h>
+#include <Version.h>
+
+#include <QtMath>
+#include <QLabel>
+
+#include <RWStorage.h>
+#include <Env.h>
+
+namespace Flame {
+
+ListModel::ListModel(QObject *parent) : QAbstractListModel(parent)
+{
+}
+
+ListModel::~ListModel()
+{
+}
+
+int ListModel::rowCount(const QModelIndex &parent) const
+{
+    return modpacks.size();
+}
+
+int ListModel::columnCount(const QModelIndex &parent) const
+{
+    return 1;
+}
+
+QVariant ListModel::data(const QModelIndex &index, int role) const
+{
+    int pos = index.row();
+    if(pos >= modpacks.size() || pos < 0 || !index.isValid())
+    {
+        return QString("INVALID INDEX %1").arg(pos);
+    }
+
+    IndexedPack pack = modpacks.at(pos);
+    if(role == Qt::DisplayRole)
+    {
+        return pack.name;
+    }
+    else if (role == Qt::ToolTipRole)
+    {
+        if(pack.description.length() > 100)
+        {
+            //some magic to prevent to long tooltips and replace html linebreaks
+            QString edit = pack.description.left(97);
+            edit = edit.left(edit.lastIndexOf("<br>")).left(edit.lastIndexOf(" ")).append("...");
+            return edit;
+
+        }
+        return pack.description;
+    }
+    else if(role == Qt::DecorationRole)
+    {
+        if(m_logoMap.contains(pack.logoName))
+        {
+            return (m_logoMap.value(pack.logoName));
+        }
+        QIcon icon = MMC->getThemedIcon("screenshot-placeholder");
+        ((ListModel *)this)->requestLogo(pack.logoName, pack.logoUrl);
+        return icon;
+    }
+    else if(role == Qt::UserRole)
+    {
+        QVariant v;
+        v.setValue(pack);
+        return v;
+    }
+
+    return QVariant();
+}
+
+void ListModel::logoLoaded(QString logo, QIcon out)
+{
+    m_loadingLogos.removeAll(logo);
+    m_logoMap.insert(logo, out);
+    for(int i = 0; i < modpacks.size(); i++) {
+        if(modpacks[i].logoName == logo) {
+            emit dataChanged(createIndex(i, 0), createIndex(i, 0), {Qt::DecorationRole});
+        }
+    }
+}
+
+void ListModel::logoFailed(QString logo)
+{
+    m_failedLogos.append(logo);
+    m_loadingLogos.removeAll(logo);
+}
+
+void ListModel::requestLogo(QString logo, QString url)
+{
+    if(m_loadingLogos.contains(logo) || m_failedLogos.contains(logo))
+    {
+        return;
+    }
+
+    MetaEntryPtr entry = ENV.metacache()->resolveEntry("FlamePacks", QString("logos/%1").arg(logo.section(".", 0, 0)));
+    NetJob *job = new NetJob(QString("Flame Icon Download %1").arg(logo));
+    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+
+    auto fullPath = entry->getFullPath();
+    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath]
+    {
+        emit logoLoaded(logo, QIcon(fullPath));
+        if(waitingCallbacks.contains(logo))
+        {
+            waitingCallbacks.value(logo)(fullPath);
+        }
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, logo]
+    {
+        emit logoFailed(logo);
+    });
+
+    job->start();
+
+    m_loadingLogos.append(logo);
+}
+
+void ListModel::getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback)
+{
+    if(m_logoMap.contains(logo))
+    {
+        callback(ENV.metacache()->resolveEntry("FlamePacks", QString("logos/%1").arg(logo.section(".", 0, 0)))->getFullPath());
+    }
+    else
+    {
+        requestLogo(logo, logoUrl);
+    }
+}
+
+Qt::ItemFlags ListModel::flags(const QModelIndex &index) const
+{
+    return QAbstractListModel::flags(index);
+}
+
+bool ListModel::canFetchMore(const QModelIndex& parent) const
+{
+    return searchState == CanPossiblyFetchMore;
+}
+
+void ListModel::fetchMore(const QModelIndex& parent)
+{
+    if (parent.isValid())
+        return;
+    if(nextSearchOffset == 0) {
+        qWarning() << "fetchMore with 0 offset is wrong...";
+        return;
+    }
+    performPaginatedSearch();
+}
+
+void ListModel::performPaginatedSearch()
+{
+    NetJob *netJob = new NetJob("Flame::Search");
+    auto searchUrl = QString(
+        "https://addons-ecs.forgesvc.net/api/v2/addon/search?"
+        "categoryId=0&"
+        "gameId=432&"
+        "index=%1&"
+        "pageSize=25&"
+        "searchFilter=%2&"
+        "sectionId=4471&"
+        "sort=%3"
+    ).arg(nextSearchOffset).arg(currentSearchTerm).arg(currentSort);
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
+    jobPtr = netJob;
+    jobPtr->start();
+    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::searchRequestFinished);
+    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
+}
+
+void ListModel::searchWithTerm(const QString& term, int sort)
+{
+    if(currentSearchTerm == term && currentSearchTerm.isNull() == term.isNull() && currentSort == sort) {
+        return;
+    }
+    currentSearchTerm = term;
+    currentSort = sort;
+    if(jobPtr) {
+        jobPtr->abort();
+        searchState = ResetRequested;
+        return;
+    }
+    else {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+        searchState = None;
+    }
+    nextSearchOffset = 0;
+    performPaginatedSearch();
+}
+
+void Flame::ListModel::searchRequestFinished()
+{
+    jobPtr.reset();
+
+    QJsonParseError parse_error;
+    QJsonDocument doc = QJsonDocument::fromJson(response, &parse_error);
+    if(parse_error.error != QJsonParseError::NoError) {
+        qWarning() << "Error while parsing JSON response from CurseForge at " << parse_error.offset << " reason: " << parse_error.errorString();
+        qWarning() << response;
+        return;
+    }
+
+    QList<Flame::IndexedPack> newList;
+    auto packs = doc.array();
+    for(auto packRaw : packs) {
+        auto packObj = packRaw.toObject();
+
+        Flame::IndexedPack pack;
+        try
+        {
+            Flame::loadIndexedPack(pack, packObj);
+            newList.append(pack);
+        }
+        catch(const JSONValidationError &e)
+        {
+            qWarning() << "Error while loading pack from CurseForge: " << e.cause();
+            continue;
+        }
+    }
+    if(packs.size() < 25) {
+        searchState = Finished;
+    } else {
+        nextSearchOffset += 25;
+        searchState = CanPossiblyFetchMore;
+    }
+    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
+    modpacks.append(newList);
+    endInsertRows();
+}
+
+void Flame::ListModel::searchRequestFailed(QString reason)
+{
+    jobPtr.reset();
+
+    if(searchState == ResetRequested) {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+
+        nextSearchOffset = 0;
+        performPaginatedSearch();
+    } else {
+        searchState = Finished;
+    }
+}
+
+}
+
diff --git a/launcher/pages/modplatform/flame/FlameModel.h b/launcher/pages/modplatform/flame/FlameModel.h
new file mode 100644
index 00000000..24383db0
--- /dev/null
+++ b/launcher/pages/modplatform/flame/FlameModel.h
@@ -0,0 +1,76 @@
+#pragma once
+
+#include <RWStorage.h>
+
+#include <QAbstractListModel>
+#include <QSortFilterProxyModel>
+#include <QThreadPool>
+#include <QIcon>
+#include <QStyledItemDelegate>
+#include <QList>
+#include <QString>
+#include <QStringList>
+#include <QMetaType>
+
+#include <functional>
+#include <net/NetJob.h>
+
+#include <modplatform/flame/FlamePackIndex.h>
+
+namespace Flame {
+
+
+typedef QMap<QString, QIcon> LogoMap;
+typedef std::function<void(QString)> LogoCallback;
+
+class ListModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+public:
+    ListModel(QObject *parent);
+    virtual ~ListModel();
+
+    int rowCount(const QModelIndex &parent) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+    bool canFetchMore(const QModelIndex & parent) const override;
+    void fetchMore(const QModelIndex & parent) override;
+
+    void getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback);
+    void searchWithTerm(const QString & term, const int sort);
+
+private slots:
+    void performPaginatedSearch();
+
+    void logoFailed(QString logo);
+    void logoLoaded(QString logo, QIcon out);
+
+    void searchRequestFinished();
+    void searchRequestFailed(QString reason);
+
+private:
+    void requestLogo(QString file, QString url);
+
+private:
+    QList<IndexedPack> modpacks;
+    QStringList m_failedLogos;
+    QStringList m_loadingLogos;
+    LogoMap m_logoMap;
+    QMap<QString, LogoCallback> waitingCallbacks;
+
+    QString currentSearchTerm;
+    int currentSort = 0;
+    int nextSearchOffset = 0;
+    enum SearchState {
+        None,
+        CanPossiblyFetchMore,
+        ResetRequested,
+        Finished
+    } searchState = None;
+    NetJobPtr jobPtr;
+    QByteArray response;
+};
+
+}
diff --git a/launcher/pages/modplatform/flame/FlamePage.cpp b/launcher/pages/modplatform/flame/FlamePage.cpp
new file mode 100644
index 00000000..ade58431
--- /dev/null
+++ b/launcher/pages/modplatform/flame/FlamePage.cpp
@@ -0,0 +1,185 @@
+#include "FlamePage.h"
+#include "ui_FlamePage.h"
+
+#include "MultiMC.h"
+#include <Json.h>
+#include "dialogs/NewInstanceDialog.h"
+#include <InstanceImportTask.h>
+#include "FlameModel.h"
+#include <QKeyEvent>
+
+FlamePage::FlamePage(NewInstanceDialog* dialog, QWidget *parent)
+    : QWidget(parent), ui(new Ui::FlamePage), dialog(dialog)
+{
+    ui->setupUi(this);
+    connect(ui->searchButton, &QPushButton::clicked, this, &FlamePage::triggerSearch);
+    ui->searchEdit->installEventFilter(this);
+    listModel = new Flame::ListModel(this);
+    ui->packView->setModel(listModel);
+
+    ui->versionSelectionBox->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+    ui->versionSelectionBox->view()->parentWidget()->setMaximumHeight(300);
+
+    // index is used to set the sorting with the curseforge api
+    ui->sortByBox->addItem(tr("Sort by featured"));
+    ui->sortByBox->addItem(tr("Sort by popularity"));
+    ui->sortByBox->addItem(tr("Sort by last updated"));
+    ui->sortByBox->addItem(tr("Sort by name"));
+    ui->sortByBox->addItem(tr("Sort by author"));
+    ui->sortByBox->addItem(tr("Sort by total downloads"));
+
+    connect(ui->sortByBox, SIGNAL(currentIndexChanged(int)), this, SLOT(triggerSearch()));
+    connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &FlamePage::onSelectionChanged);
+    connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this, &FlamePage::onVersionSelectionChanged);
+}
+
+FlamePage::~FlamePage()
+{
+    delete ui;
+}
+
+bool FlamePage::eventFilter(QObject* watched, QEvent* event)
+{
+    if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
+        QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
+        if (keyEvent->key() == Qt::Key_Return) {
+            triggerSearch();
+            keyEvent->accept();
+            return true;
+        }
+    }
+    return QWidget::eventFilter(watched, event);
+}
+
+bool FlamePage::shouldDisplay() const
+{
+    return true;
+}
+
+void FlamePage::openedImpl()
+{
+    suggestCurrent();
+    triggerSearch();
+}
+
+void FlamePage::triggerSearch()
+{
+    listModel->searchWithTerm(ui->searchEdit->text(), ui->sortByBox->currentIndex());
+}
+
+void FlamePage::onSelectionChanged(QModelIndex first, QModelIndex second)
+{
+    ui->versionSelectionBox->clear();
+
+    if(!first.isValid())
+    {
+        if(isOpened)
+        {
+            dialog->setSuggestedPack();
+        }
+        return;
+    }
+
+    current = listModel->data(first, Qt::UserRole).value<Flame::IndexedPack>();
+    QString text = "";
+    QString name = current.name;
+
+    if (current.websiteUrl.isEmpty())
+        text = name;
+    else
+        text = "<a href=\"" + current.websiteUrl + "\">" + name + "</a>";
+    if (!current.authors.empty()) {
+        auto authorToStr = [](Flame::ModpackAuthor & author) {
+            if(author.url.isEmpty()) {
+                return author.name;
+            }
+            return QString("<a href=\"%1\">%2</a>").arg(author.url, author.name);
+        };
+        QStringList authorStrs;
+        for(auto & author: current.authors) {
+            authorStrs.push_back(authorToStr(author));
+        }
+        text += "<br>" + tr(" by ") + authorStrs.join(", ");
+    }
+    text += "<br><br>";
+
+    ui->packDescription->setHtml(text + current.description);
+
+    if (current.versionsLoaded == false)
+    {
+        qDebug() << "Loading flame modpack versions";
+        NetJob *netJob = new NetJob(QString("Flame::PackVersions(%1)").arg(current.name));
+        std::shared_ptr<QByteArray> response = std::make_shared<QByteArray>();
+        int addonId = current.addonId;
+        netJob->addNetAction(Net::Download::makeByteArray(QString("https://addons-ecs.forgesvc.net/api/v2/addon/%1/files").arg(addonId), response.get()));
+        
+        QObject::connect(netJob, &NetJob::succeeded, this, [this, response]
+        {
+            QJsonParseError parse_error;
+            QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
+            if(parse_error.error != QJsonParseError::NoError) {
+                qWarning() << "Error while parsing JSON response from CurseForge at " << parse_error.offset << " reason: " << parse_error.errorString();
+                qWarning() << *response;
+                return;
+            }
+            QJsonArray arr = doc.array();
+            try
+            {
+                Flame::loadIndexedPackVersions(current, arr);
+            }
+            catch(const JSONValidationError &e)
+            {
+                qDebug() << *response;
+                qWarning() << "Error while reading flame modpack version: " << e.cause();
+            }
+
+            for(auto version : current.versions) {
+                ui->versionSelectionBox->addItem(version.version, QVariant(version.downloadUrl));
+            }
+
+            suggestCurrent();
+        });
+        netJob->start();
+    }
+    else
+    {
+        for(auto version : current.versions) {
+            ui->versionSelectionBox->addItem(version.version, QVariant(version.downloadUrl));
+        }
+
+        suggestCurrent();
+    }
+}
+
+void FlamePage::suggestCurrent()
+{
+    if(!isOpened)
+    {
+        return;
+    }
+
+    if (selectedVersion.isEmpty())
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    dialog->setSuggestedPack(current.name, new InstanceImportTask(selectedVersion));
+    QString editedLogoName;
+    editedLogoName = "curseforge_" + current.logoName.section(".", 0, 0);
+    listModel->getLogo(current.logoName, current.logoUrl, [this, editedLogoName](QString logo)
+    {
+        dialog->setSuggestedIconFromFile(logo, editedLogoName);
+    });
+}
+
+void FlamePage::onVersionSelectionChanged(QString data)
+{
+    if(data.isNull() || data.isEmpty())
+    {
+        selectedVersion = "";
+        return;
+    }
+    selectedVersion = ui->versionSelectionBox->currentData().toString();
+    suggestCurrent();
+}
diff --git a/launcher/pages/modplatform/flame/FlamePage.h b/launcher/pages/modplatform/flame/FlamePage.h
new file mode 100644
index 00000000..467bb44b
--- /dev/null
+++ b/launcher/pages/modplatform/flame/FlamePage.h
@@ -0,0 +1,80 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QWidget>
+
+#include "pages/BasePage.h"
+#include <MultiMC.h>
+#include "tasks/Task.h"
+#include <modplatform/flame/FlamePackIndex.h>
+
+namespace Ui
+{
+class FlamePage;
+}
+
+class NewInstanceDialog;
+
+namespace Flame {
+    class ListModel;
+}
+
+class FlamePage : public QWidget, public BasePage
+{
+    Q_OBJECT
+
+public:
+    explicit FlamePage(NewInstanceDialog* dialog, QWidget *parent = 0);
+    virtual ~FlamePage();
+    virtual QString displayName() const override
+    {
+        return tr("CurseForge");
+    }
+    virtual QIcon icon() const override
+    {
+        return MMC->getThemedIcon("flame");
+    }
+    virtual QString id() const override
+    {
+        return "flame";
+    }
+    virtual QString helpPage() const override
+    {
+        return "Flame-platform";
+    }
+    virtual bool shouldDisplay() const override;
+
+    void openedImpl() override;
+
+    bool eventFilter(QObject * watched, QEvent * event) override;
+
+private:
+    void suggestCurrent();
+
+private slots:
+    void triggerSearch();
+    void onSelectionChanged(QModelIndex first, QModelIndex second);
+    void onVersionSelectionChanged(QString data);
+
+private:
+    Ui::FlamePage *ui = nullptr;
+    NewInstanceDialog* dialog = nullptr;
+    Flame::ListModel* listModel = nullptr;
+    Flame::IndexedPack current;
+
+    QString selectedVersion;
+};
diff --git a/launcher/pages/modplatform/flame/FlamePage.ui b/launcher/pages/modplatform/flame/FlamePage.ui
new file mode 100644
index 00000000..9723815a
--- /dev/null
+++ b/launcher/pages/modplatform/flame/FlamePage.ui
@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+  <class>FlamePage</class>
+  <widget class="QWidget" name="FlamePage">
+    <property name="geometry">
+      <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>837</width>
+        <height>685</height>
+      </rect>
+    </property>
+    <layout class="QGridLayout" name="gridLayout">
+      <item row="1" column="0" colspan="2">
+        <layout class="QGridLayout" name="gridLayout_3">
+          <item row="1" column="0">
+            <widget class="QListView" name="packView">
+              <property name="iconSize">
+                <size>
+                  <width>48</width>
+                  <height>48</height>
+                </size>
+              </property>
+              <property name="horizontalScrollBarPolicy">
+                <enum>Qt::ScrollBarAlwaysOff</enum>
+              </property>
+              <property name="alternatingRowColors">
+                <bool>true</bool>
+              </property>
+            </widget>
+          </item>
+          <item row="1" column="1">
+            <widget class="QTextBrowser" name="packDescription">
+              <property name="openExternalLinks">
+                <bool>true</bool>
+              </property>
+              <property name="openLinks">
+                <bool>true</bool>
+              </property>
+            </widget>
+          </item>
+        </layout>
+      </item>
+      <item row="2" column="0" colspan="2">
+        <layout class="QGridLayout" name="gridLayout_4" columnstretch="0,0,0" rowminimumheight="0" columnminimumwidth="0,0,0">
+          <item row="0" column="2">
+            <widget class="QComboBox" name="versionSelectionBox"/>
+          </item>
+          <item row="0" column="1">
+            <widget class="QLabel" name="label">
+              <property name="text">
+                <string>Version selected:</string>
+              </property>
+              <property name="alignment">
+                <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+              </property>
+            </widget>
+          </item>
+          <item row="0" column="0">
+            <widget class="QComboBox" name="sortByBox"/>
+          </item>
+        </layout>
+      </item>
+      <item row="0" column="1">
+        <widget class="QPushButton" name="searchButton">
+          <property name="text">
+            <string>Search</string>
+          </property>
+        </widget>
+      </item>
+      <item row="0" column="0">
+        <widget class="QLineEdit" name="searchEdit">
+          <property name="placeholderText">
+            <string>Search and filter ...</string>
+          </property>
+        </widget>
+      </item>
+    </layout>
+  </widget>
+  <tabstops>
+    <tabstop>searchEdit</tabstop>
+    <tabstop>searchButton</tabstop>
+    <tabstop>packView</tabstop>
+    <tabstop>packDescription</tabstop>
+    <tabstop>sortByBox</tabstop>
+    <tabstop>versionSelectionBox</tabstop>
+  </tabstops>
+  <resources/>
+  <connections/>
+</ui>
diff --git a/launcher/pages/modplatform/ftb/FtbFilterModel.cpp b/launcher/pages/modplatform/ftb/FtbFilterModel.cpp
new file mode 100644
index 00000000..dec3a017
--- /dev/null
+++ b/launcher/pages/modplatform/ftb/FtbFilterModel.cpp
@@ -0,0 +1,64 @@
+#include "FtbFilterModel.h"
+
+#include <QDebug>
+
+#include "modplatform/modpacksch/FTBPackManifest.h"
+#include <MMCStrings.h>
+
+namespace Ftb {
+
+FilterModel::FilterModel(QObject *parent) : QSortFilterProxyModel(parent)
+{
+    currentSorting = Sorting::ByPlays;
+    sortings.insert(tr("Sort by plays"), Sorting::ByPlays);
+    sortings.insert(tr("Sort by installs"), Sorting::ByInstalls);
+    sortings.insert(tr("Sort by name"), Sorting::ByName);
+}
+
+const QMap<QString, FilterModel::Sorting> FilterModel::getAvailableSortings()
+{
+    return sortings;
+}
+
+QString FilterModel::translateCurrentSorting()
+{
+    return sortings.key(currentSorting);
+}
+
+void FilterModel::setSorting(Sorting sorting)
+{
+    currentSorting = sorting;
+    invalidate();
+}
+
+FilterModel::Sorting FilterModel::getCurrentSorting()
+{
+    return currentSorting;
+}
+
+bool FilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+{
+    return true;
+}
+
+bool FilterModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
+{
+    ModpacksCH::Modpack leftPack = sourceModel()->data(left, Qt::UserRole).value<ModpacksCH::Modpack>();
+    ModpacksCH::Modpack rightPack = sourceModel()->data(right, Qt::UserRole).value<ModpacksCH::Modpack>();
+
+    if (currentSorting == ByPlays) {
+        return leftPack.plays < rightPack.plays;
+    }
+    else if (currentSorting == ByInstalls) {
+        return leftPack.installs < rightPack.installs;
+    }
+    else if (currentSorting == ByName) {
+        return Strings::naturalCompare(leftPack.name, rightPack.name, Qt::CaseSensitive) >= 0;
+    }
+
+    // Invalid sorting set, somehow...
+    qWarning() << "Invalid sorting set!";
+    return true;
+}
+
+}
diff --git a/launcher/pages/modplatform/ftb/FtbFilterModel.h b/launcher/pages/modplatform/ftb/FtbFilterModel.h
new file mode 100644
index 00000000..4fe2a274
--- /dev/null
+++ b/launcher/pages/modplatform/ftb/FtbFilterModel.h
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <QtCore/QSortFilterProxyModel>
+
+namespace Ftb {
+
+class FilterModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+
+public:
+    FilterModel(QObject* parent = Q_NULLPTR);
+    enum Sorting {
+        ByPlays,
+        ByInstalls,
+        ByName,
+    };
+    const QMap<QString, Sorting> getAvailableSortings();
+    QString translateCurrentSorting();
+    void setSorting(Sorting sorting);
+    Sorting getCurrentSorting();
+
+protected:
+    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
+    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
+
+private:
+    QMap<QString, Sorting> sortings;
+    Sorting currentSorting;
+
+};
+
+}
diff --git a/launcher/pages/modplatform/ftb/FtbListModel.cpp b/launcher/pages/modplatform/ftb/FtbListModel.cpp
new file mode 100644
index 00000000..98973f2e
--- /dev/null
+++ b/launcher/pages/modplatform/ftb/FtbListModel.cpp
@@ -0,0 +1,304 @@
+#include "FtbListModel.h"
+
+#include "BuildConfig.h"
+#include "Env.h"
+#include "MultiMC.h"
+#include "Json.h"
+
+#include <QPainter>
+
+namespace Ftb {
+
+ListModel::ListModel(QObject *parent) : QAbstractListModel(parent)
+{
+}
+
+ListModel::~ListModel()
+{
+}
+
+int ListModel::rowCount(const QModelIndex &parent) const
+{
+    return modpacks.size();
+}
+
+int ListModel::columnCount(const QModelIndex &parent) const
+{
+    return 1;
+}
+
+QVariant ListModel::data(const QModelIndex &index, int role) const
+{
+    int pos = index.row();
+    if(pos >= modpacks.size() || pos < 0 || !index.isValid())
+    {
+        return QString("INVALID INDEX %1").arg(pos);
+    }
+
+    ModpacksCH::Modpack pack = modpacks.at(pos);
+    if(role == Qt::DisplayRole)
+    {
+        return pack.name;
+    }
+    else if (role == Qt::ToolTipRole)
+    {
+        return pack.synopsis;
+    }
+    else if(role == Qt::DecorationRole)
+    {
+        QIcon placeholder = MMC->getThemedIcon("screenshot-placeholder");
+
+        auto iter = m_logoMap.find(pack.name);
+        if (iter != m_logoMap.end()) {
+            auto & logo = *iter;
+            if(!logo.result.isNull()) {
+                return logo.result;
+            }
+            return placeholder;
+        }
+
+        for(auto art : pack.art) {
+            if(art.type == "square") {
+                ((ListModel *)this)->requestLogo(pack.name, art.url);
+            }
+        }
+        return placeholder;
+    }
+    else if(role == Qt::UserRole)
+    {
+        QVariant v;
+        v.setValue(pack);
+        return v;
+    }
+
+    return QVariant();
+}
+
+void ListModel::performSearch()
+{
+    auto *netJob = new NetJob("Ftb::Search");
+    QString searchUrl;
+    if(currentSearchTerm.isEmpty()) {
+        searchUrl = BuildConfig.MODPACKSCH_API_BASE_URL + "public/modpack/all";
+    }
+    else {
+        searchUrl = QString(BuildConfig.MODPACKSCH_API_BASE_URL + "public/modpack/search/25?term=%1")
+            .arg(currentSearchTerm);
+    }
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
+    jobPtr = netJob;
+    jobPtr->start();
+    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::searchRequestFinished);
+    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
+}
+
+void ListModel::getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback)
+{
+    if(m_logoMap.contains(logo))
+    {
+        callback(ENV.metacache()->resolveEntry("ModpacksCHPacks", QString("logos/%1").arg(logo.section(".", 0, 0)))->getFullPath());
+    }
+    else
+    {
+        requestLogo(logo, logoUrl);
+    }
+}
+
+void ListModel::searchWithTerm(const QString &term)
+{
+    if(searchState != Failed && currentSearchTerm == term && currentSearchTerm.isNull() == term.isNull()) {
+        // unless the search has failed, then there is no need to perform an identical search.
+        return;
+    }
+    currentSearchTerm = term;
+
+    if(jobPtr) {
+        jobPtr->abort();
+        jobPtr.reset();
+    }
+
+    beginResetModel();
+    modpacks.clear();
+    endResetModel();
+    searchState = None;
+
+    performSearch();
+}
+
+void ListModel::searchRequestFinished()
+{
+    jobPtr.reset();
+    remainingPacks.clear();
+
+    QJsonParseError parse_error;
+    QJsonDocument doc = QJsonDocument::fromJson(response, &parse_error);
+    if(parse_error.error != QJsonParseError::NoError) {
+        qWarning() << "Error while parsing JSON response from FTB at " << parse_error.offset << " reason: " << parse_error.errorString();
+        qWarning() << response;
+        return;
+    }
+
+    auto packs = doc.object().value("packs").toArray();
+    for(auto pack : packs) {
+        auto packId = pack.toInt();
+        remainingPacks.append(packId);
+    }
+
+    if(!remainingPacks.isEmpty()) {
+        currentPack = remainingPacks.at(0);
+        requestPack();
+    }
+}
+
+void ListModel::searchRequestFailed(QString reason)
+{
+    jobPtr.reset();
+    remainingPacks.clear();
+
+    searchState = Failed;
+}
+
+void ListModel::requestPack()
+{
+    auto *netJob = new NetJob("Ftb::Search");
+    auto searchUrl = QString(BuildConfig.MODPACKSCH_API_BASE_URL + "public/modpack/%1")
+            .arg(currentPack);
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
+    jobPtr = netJob;
+    jobPtr->start();
+
+    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::packRequestFinished);
+    QObject::connect(netJob, &NetJob::failed, this, &ListModel::packRequestFailed);
+}
+
+void ListModel::packRequestFinished()
+{
+    jobPtr.reset();
+    remainingPacks.removeOne(currentPack);
+
+    QJsonParseError parse_error;
+    QJsonDocument doc = QJsonDocument::fromJson(response, &parse_error);
+
+    if(parse_error.error != QJsonParseError::NoError) {
+        qWarning() << "Error while parsing JSON response from FTB at " << parse_error.offset << " reason: " << parse_error.errorString();
+        qWarning() << response;
+        return;
+    }
+
+    auto obj = doc.object();
+
+    ModpacksCH::Modpack pack;
+    try
+    {
+        ModpacksCH::loadModpack(pack, obj);
+    }
+    catch (const JSONValidationError &e)
+    {
+        qDebug() << QString::fromUtf8(response);
+        qWarning() << "Error while reading pack manifest from FTB: " << e.cause();
+        return;
+    }
+
+    // Since there is no guarantee that packs have a version, this will just
+    // ignore those "dud" packs.
+    if (pack.versions.empty())
+    {
+        qWarning() << "FTB Pack " << pack.id << " ignored. reason: lacking any versions";
+    }
+    else
+    {
+        beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size());
+        modpacks.append(pack);
+        endInsertRows();
+    }
+
+    if(!remainingPacks.isEmpty()) {
+        currentPack = remainingPacks.at(0);
+        requestPack();
+    }
+}
+
+void ListModel::packRequestFailed(QString reason)
+{
+    jobPtr.reset();
+    remainingPacks.removeOne(currentPack);
+}
+
+void ListModel::logoLoaded(QString logo, bool stale)
+{
+    auto & logoObj = m_logoMap[logo];
+    logoObj.downloadJob.reset();
+    QString smallPath = logoObj.fullpath + ".small";
+
+    QFileInfo smallInfo(smallPath);
+
+    if(stale || !smallInfo.exists()) {
+        QImage image(logoObj.fullpath);
+        if (image.isNull())
+        {
+            logoObj.failed = true;
+            return;
+        }
+        QImage small;
+        if (image.width() > image.height()) {
+            small = image.scaledToWidth(512).scaledToWidth(256, Qt::SmoothTransformation);
+        }
+        else {
+            small = image.scaledToHeight(512).scaledToHeight(256, Qt::SmoothTransformation);
+        }
+        QPoint offset((256 - small.width()) / 2, (256 - small.height()) / 2);
+        QImage square(QSize(256, 256), QImage::Format_ARGB32);
+        square.fill(Qt::transparent);
+
+        QPainter painter(&square);
+        painter.drawImage(offset, small);
+        painter.end();
+
+        square.save(logoObj.fullpath + ".small", "PNG");
+    }
+
+    logoObj.result = QIcon(logoObj.fullpath + ".small");
+    for(int i = 0; i < modpacks.size(); i++) {
+        if(modpacks[i].name == logo) {
+            emit dataChanged(createIndex(i, 0), createIndex(i, 0), {Qt::DecorationRole});
+        }
+    }
+}
+
+void ListModel::logoFailed(QString logo)
+{
+    m_logoMap[logo].failed = true;
+    m_logoMap[logo].downloadJob.reset();
+}
+
+void ListModel::requestLogo(QString logo, QString url)
+{
+    if(m_logoMap.contains(logo)) {
+        return;
+    }
+
+    MetaEntryPtr entry = ENV.metacache()->resolveEntry("ModpacksCHPacks", QString("logos/%1").arg(logo.section(".", 0, 0)));
+
+    bool stale = entry->isStale();
+
+    NetJob *job = new NetJob(QString("FTB Icon Download %1").arg(logo));
+    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+
+    auto fullPath = entry->getFullPath();
+    QObject::connect(job, &NetJob::finished, this, [this, logo, fullPath, stale]
+    {
+        logoLoaded(logo, stale);
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, logo]
+    {
+        logoFailed(logo);
+    });
+
+    auto &newLogoEntry = m_logoMap[logo];
+    newLogoEntry.downloadJob = job;
+    newLogoEntry.fullpath = fullPath;
+    job->start();
+}
+
+}
diff --git a/launcher/pages/modplatform/ftb/FtbListModel.h b/launcher/pages/modplatform/ftb/FtbListModel.h
new file mode 100644
index 00000000..de94e6ba
--- /dev/null
+++ b/launcher/pages/modplatform/ftb/FtbListModel.h
@@ -0,0 +1,69 @@
+#pragma once
+
+#include <QAbstractListModel>
+
+#include "modplatform/modpacksch/FTBPackManifest.h"
+#include "net/NetJob.h"
+#include <QIcon>
+
+namespace Ftb {
+
+struct Logo {
+    QString fullpath;
+    NetJobPtr downloadJob;
+    QIcon result;
+    bool failed = false;
+};
+
+typedef QMap<QString, Logo> LogoMap;
+typedef std::function<void(QString)> LogoCallback;
+
+class ListModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+public:
+    ListModel(QObject *parent);
+    virtual ~ListModel();
+
+    int rowCount(const QModelIndex &parent) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+
+    void getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback);
+    void searchWithTerm(const QString & term);
+
+private slots:
+    void performSearch();
+    void searchRequestFinished();
+    void searchRequestFailed(QString reason);
+
+    void requestPack();
+    void packRequestFinished();
+    void packRequestFailed(QString reason);
+
+    void logoFailed(QString logo);
+    void logoLoaded(QString logo, bool stale);
+
+private:
+    void requestLogo(QString file, QString url);
+
+private:
+    QList<ModpacksCH::Modpack> modpacks;
+    LogoMap m_logoMap;
+
+    QString currentSearchTerm;
+    enum SearchState {
+        None,
+        CanPossiblyFetchMore,
+        ResetRequested,
+        Finished,
+        Failed,
+    } searchState = None;
+    NetJobPtr jobPtr;
+    int currentPack;
+    QList<int> remainingPacks;
+    QByteArray response;
+};
+
+}
diff --git a/launcher/pages/modplatform/ftb/FtbPage.cpp b/launcher/pages/modplatform/ftb/FtbPage.cpp
new file mode 100644
index 00000000..b7f35c5d
--- /dev/null
+++ b/launcher/pages/modplatform/ftb/FtbPage.cpp
@@ -0,0 +1,145 @@
+#include "FtbPage.h"
+#include "ui_FtbPage.h"
+
+#include <QKeyEvent>
+
+#include "dialogs/NewInstanceDialog.h"
+#include "modplatform/modpacksch/FTBPackInstallTask.h"
+
+#include "HoeDown.h"
+
+FtbPage::FtbPage(NewInstanceDialog* dialog, QWidget *parent)
+        : QWidget(parent), ui(new Ui::FtbPage), dialog(dialog)
+{
+    ui->setupUi(this);
+
+    filterModel = new Ftb::FilterModel(this);
+    listModel = new Ftb::ListModel(this);
+    filterModel->setSourceModel(listModel);
+    ui->packView->setModel(filterModel);
+    ui->packView->setSortingEnabled(true);
+    ui->packView->header()->hide();
+    ui->packView->setIndentation(0);
+
+    ui->searchEdit->installEventFilter(this);
+
+    ui->versionSelectionBox->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+    ui->versionSelectionBox->view()->parentWidget()->setMaximumHeight(300);
+
+    for(int i = 0; i < filterModel->getAvailableSortings().size(); i++)
+    {
+        ui->sortByBox->addItem(filterModel->getAvailableSortings().keys().at(i));
+    }
+    ui->sortByBox->setCurrentText(filterModel->translateCurrentSorting());
+
+    connect(ui->searchButton, &QPushButton::clicked, this, &FtbPage::triggerSearch);
+    connect(ui->sortByBox, &QComboBox::currentTextChanged, this, &FtbPage::onSortingSelectionChanged);
+    connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &FtbPage::onSelectionChanged);
+    connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this, &FtbPage::onVersionSelectionChanged);
+}
+
+FtbPage::~FtbPage()
+{
+    delete ui;
+}
+
+bool FtbPage::eventFilter(QObject* watched, QEvent* event)
+{
+    if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
+        QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
+        if (keyEvent->key() == Qt::Key_Return) {
+            triggerSearch();
+            keyEvent->accept();
+            return true;
+        }
+    }
+    return QWidget::eventFilter(watched, event);
+}
+
+bool FtbPage::shouldDisplay() const
+{
+    return true;
+}
+
+void FtbPage::openedImpl()
+{
+    triggerSearch();
+    suggestCurrent();
+}
+
+void FtbPage::suggestCurrent()
+{
+    if(!isOpened)
+    {
+        return;
+    }
+
+    if (selectedVersion.isEmpty())
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    dialog->setSuggestedPack(selected.name, new ModpacksCH::PackInstallTask(selected, selectedVersion));
+    for(auto art : selected.art) {
+        if(art.type == "square") {
+            QString editedLogoName;
+            editedLogoName = selected.name;
+
+            listModel->getLogo(selected.name, art.url, [this, editedLogoName](QString logo)
+            {
+                dialog->setSuggestedIconFromFile(logo + ".small", editedLogoName);
+            });
+        }
+    }
+}
+
+void FtbPage::triggerSearch()
+{
+    listModel->searchWithTerm(ui->searchEdit->text());
+}
+
+void FtbPage::onSortingSelectionChanged(QString data)
+{
+    auto toSet = filterModel->getAvailableSortings().value(data);
+    filterModel->setSorting(toSet);
+}
+
+void FtbPage::onSelectionChanged(QModelIndex first, QModelIndex second)
+{
+    ui->versionSelectionBox->clear();
+
+    if(!first.isValid())
+    {
+        if(isOpened)
+        {
+            dialog->setSuggestedPack();
+        }
+        return;
+    }
+
+    selected = filterModel->data(first, Qt::UserRole).value<ModpacksCH::Modpack>();
+
+    HoeDown hoedown;
+    QString output = hoedown.process(selected.description.toUtf8());
+    ui->packDescription->setHtml(output);
+
+    // reverse foreach, so that the newest versions are first
+    for (auto i = selected.versions.size(); i--;) {
+        ui->versionSelectionBox->addItem(selected.versions.at(i).name);
+    }
+
+    suggestCurrent();
+}
+
+void FtbPage::onVersionSelectionChanged(QString data)
+{
+    if(data.isNull() || data.isEmpty())
+    {
+        selectedVersion = "";
+        return;
+    }
+
+    selectedVersion = data;
+    suggestCurrent();
+}
diff --git a/launcher/pages/modplatform/ftb/FtbPage.h b/launcher/pages/modplatform/ftb/FtbPage.h
new file mode 100644
index 00000000..c9c93897
--- /dev/null
+++ b/launcher/pages/modplatform/ftb/FtbPage.h
@@ -0,0 +1,80 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "FtbFilterModel.h"
+#include "FtbListModel.h"
+
+#include <QWidget>
+
+#include "MultiMC.h"
+#include "pages/BasePage.h"
+#include "tasks/Task.h"
+
+namespace Ui
+{
+    class FtbPage;
+}
+
+class NewInstanceDialog;
+
+class FtbPage : public QWidget, public BasePage
+{
+Q_OBJECT
+
+public:
+    explicit FtbPage(NewInstanceDialog* dialog, QWidget *parent = 0);
+    virtual ~FtbPage();
+    virtual QString displayName() const override
+    {
+        return tr("FTB");
+    }
+    virtual QIcon icon() const override
+    {
+        return MMC->getThemedIcon("ftb_logo");
+    }
+    virtual QString id() const override
+    {
+        return "ftb";
+    }
+    virtual QString helpPage() const override
+    {
+        return "FTB-platform";
+    }
+    virtual bool shouldDisplay() const override;
+
+    void openedImpl() override;
+
+    bool eventFilter(QObject * watched, QEvent * event) override;
+
+private:
+    void suggestCurrent();
+
+private slots:
+    void triggerSearch();
+    void onSortingSelectionChanged(QString data);
+    void onSelectionChanged(QModelIndex first, QModelIndex second);
+    void onVersionSelectionChanged(QString data);
+
+private:
+    Ui::FtbPage *ui = nullptr;
+    NewInstanceDialog* dialog = nullptr;
+    Ftb::ListModel* listModel = nullptr;
+    Ftb::FilterModel* filterModel = nullptr;
+
+    ModpacksCH::Modpack selected;
+    QString selectedVersion;
+};
diff --git a/launcher/pages/modplatform/ftb/FtbPage.ui b/launcher/pages/modplatform/ftb/FtbPage.ui
new file mode 100644
index 00000000..135afc6d
--- /dev/null
+++ b/launcher/pages/modplatform/ftb/FtbPage.ui
@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>FtbPage</class>
+ <widget class="QWidget" name="FtbPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>875</width>
+    <height>745</height>
+   </rect>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="2" column="0" colspan="2">
+    <layout class="QGridLayout" name="gridLayout_4" columnstretch="0,0,0" rowminimumheight="0" columnminimumwidth="0,0,0">
+     <item row="0" column="2">
+      <widget class="QComboBox" name="versionSelectionBox"/>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Version selected:</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QComboBox" name="sortByBox"/>
+     </item>
+    </layout>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLineEdit" name="searchEdit">
+     <property name="placeholderText">
+      <string>Search and filter ...</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QPushButton" name="searchButton">
+     <property name="text">
+      <string>Search</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0" colspan="2">
+    <layout class="QGridLayout" name="gridLayout_3">
+     <item row="0" column="0">
+      <widget class="QTreeView" name="packView">
+       <property name="iconSize">
+        <size>
+         <width>48</width>
+         <height>48</height>
+        </size>
+       </property>
+       <property name="alternatingRowColors">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QTextBrowser" name="packDescription">
+       <property name="openExternalLinks">
+        <bool>true</bool>
+       </property>
+       <property name="openLinks">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <tabstops>
+  <tabstop>searchEdit</tabstop>
+  <tabstop>searchButton</tabstop>
+  <tabstop>versionSelectionBox</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/launcher/pages/modplatform/legacy_ftb/ListModel.cpp b/launcher/pages/modplatform/legacy_ftb/ListModel.cpp
new file mode 100644
index 00000000..32596fb3
--- /dev/null
+++ b/launcher/pages/modplatform/legacy_ftb/ListModel.cpp
@@ -0,0 +1,260 @@
+#include "ListModel.h"
+#include "MultiMC.h"
+
+#include <MMCStrings.h>
+#include <Version.h>
+
+#include <QtMath>
+#include <QLabel>
+
+#include <RWStorage.h>
+#include <Env.h>
+
+#include <BuildConfig.h>
+
+namespace LegacyFTB {
+
+FilterModel::FilterModel(QObject *parent) : QSortFilterProxyModel(parent)
+{
+    currentSorting = Sorting::ByGameVersion;
+    sortings.insert(tr("Sort by name"), Sorting::ByName);
+    sortings.insert(tr("Sort by game version"), Sorting::ByGameVersion);
+}
+
+bool FilterModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
+{
+    Modpack leftPack = sourceModel()->data(left, Qt::UserRole).value<Modpack>();
+    Modpack rightPack = sourceModel()->data(right, Qt::UserRole).value<Modpack>();
+
+    if(currentSorting == Sorting::ByGameVersion) {
+        Version lv(leftPack.mcVersion);
+        Version rv(rightPack.mcVersion);
+        return lv < rv;
+
+    } else if(currentSorting == Sorting::ByName) {
+        return Strings::naturalCompare(leftPack.name, rightPack.name, Qt::CaseSensitive) >= 0;
+    }
+
+    //UHM, some inavlid value set?!
+    qWarning() << "Invalid sorting set!";
+    return true;
+}
+
+bool FilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+{
+    return true;
+}
+
+const QMap<QString, FilterModel::Sorting> FilterModel::getAvailableSortings()
+{
+    return sortings;
+}
+
+QString FilterModel::translateCurrentSorting()
+{
+    return sortings.key(currentSorting);
+}
+
+void FilterModel::setSorting(Sorting s)
+{
+    currentSorting = s;
+    invalidate();
+}
+
+FilterModel::Sorting FilterModel::getCurrentSorting()
+{
+    return currentSorting;
+}
+
+ListModel::ListModel(QObject *parent) : QAbstractListModel(parent)
+{
+}
+
+ListModel::~ListModel()
+{
+}
+
+QString ListModel::translatePackType(PackType type) const
+{
+    switch(type)
+    {
+        case PackType::Public:
+            return tr("Public Modpack");
+        case PackType::ThirdParty:
+            return tr("Third Party Modpack");
+        case PackType::Private:
+            return tr("Private Modpack");
+    }
+    qWarning() << "Unknown FTB modpack type:" << int(type);
+    return QString();
+}
+
+int ListModel::rowCount(const QModelIndex &parent) const
+{
+    return modpacks.size();
+}
+
+int ListModel::columnCount(const QModelIndex &parent) const
+{
+    return 1;
+}
+
+QVariant ListModel::data(const QModelIndex &index, int role) const
+{
+    int pos = index.row();
+    if(pos >= modpacks.size() || pos < 0 || !index.isValid())
+    {
+        return QString("INVALID INDEX %1").arg(pos);
+    }
+
+    Modpack pack = modpacks.at(pos);
+    if(role == Qt::DisplayRole)
+    {
+        return pack.name + "\n" + translatePackType(pack.type);
+    }
+    else if (role == Qt::ToolTipRole)
+    {
+        if(pack.description.length() > 100)
+        {
+            //some magic to prevent to long tooltips and replace html linebreaks
+            QString edit = pack.description.left(97);
+            edit = edit.left(edit.lastIndexOf("<br>")).left(edit.lastIndexOf(" ")).append("...");
+            return edit;
+
+        }
+        return pack.description;
+    }
+    else if(role == Qt::DecorationRole)
+    {
+        if(m_logoMap.contains(pack.logo))
+        {
+            return (m_logoMap.value(pack.logo));
+        }
+        QIcon icon = MMC->getThemedIcon("screenshot-placeholder");
+        ((ListModel *)this)->requestLogo(pack.logo);
+        return icon;
+    }
+    else if(role == Qt::TextColorRole)
+    {
+        if(pack.broken)
+        {
+            //FIXME: Hardcoded color
+            return QColor(255, 0, 50);
+        }
+        else if(pack.bugged)
+        {
+            //FIXME: Hardcoded color
+            //bugged pack, currently only indicates bugged xml
+            return QColor(244, 229, 66);
+        }
+    }
+    else if(role == Qt::UserRole)
+    {
+        QVariant v;
+        v.setValue(pack);
+        return v;
+    }
+
+    return QVariant();
+}
+
+void ListModel::fill(ModpackList modpacks)
+{
+    beginResetModel();
+    this->modpacks = modpacks;
+    endResetModel();
+}
+
+void ListModel::addPack(Modpack modpack)
+{
+    beginResetModel();
+    this->modpacks.append(modpack);
+    endResetModel();
+}
+
+void ListModel::clear()
+{
+    beginResetModel();
+    modpacks.clear();
+    endResetModel();
+}
+
+Modpack ListModel::at(int row)
+{
+    return modpacks.at(row);
+}
+
+void ListModel::remove(int row)
+{
+    if(row < 0 || row >= modpacks.size())
+    {
+        qWarning() << "Attempt to remove FTB modpacks with invalid row" << row;
+        return;
+    }
+    beginRemoveRows(QModelIndex(), row, row);
+    modpacks.removeAt(row);
+    endRemoveRows();
+}
+
+void ListModel::logoLoaded(QString logo, QIcon out)
+{
+    m_loadingLogos.removeAll(logo);
+    m_logoMap.insert(logo, out);
+    emit dataChanged(createIndex(0, 0), createIndex(1, 0));
+}
+
+void ListModel::logoFailed(QString logo)
+{
+    m_failedLogos.append(logo);
+    m_loadingLogos.removeAll(logo);
+}
+
+void ListModel::requestLogo(QString file)
+{
+    if(m_loadingLogos.contains(file) || m_failedLogos.contains(file))
+    {
+        return;
+    }
+
+    MetaEntryPtr entry = ENV.metacache()->resolveEntry("FTBPacks", QString("logos/%1").arg(file.section(".", 0, 0)));
+    NetJob *job = new NetJob(QString("FTB Icon Download for %1").arg(file));
+    job->addNetAction(Net::Download::makeCached(QUrl(QString(BuildConfig.LEGACY_FTB_CDN_BASE_URL + "static/%1").arg(file)), entry));
+
+    auto fullPath = entry->getFullPath();
+    QObject::connect(job, &NetJob::finished, this, [this, file, fullPath]
+    {
+        emit logoLoaded(file, QIcon(fullPath));
+        if(waitingCallbacks.contains(file))
+        {
+            waitingCallbacks.value(file)(fullPath);
+        }
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, file]
+    {
+        emit logoFailed(file);
+    });
+
+    job->start();
+
+    m_loadingLogos.append(file);
+}
+
+void ListModel::getLogo(const QString &logo, LogoCallback callback)
+{
+    if(m_logoMap.contains(logo))
+    {
+        callback(ENV.metacache()->resolveEntry("FTBPacks", QString("logos/%1").arg(logo.section(".", 0, 0)))->getFullPath());
+    }
+    else
+    {
+        requestLogo(logo);
+    }
+}
+
+Qt::ItemFlags ListModel::flags(const QModelIndex &index) const
+{
+    return QAbstractListModel::flags(index);
+}
+
+}
diff --git a/launcher/pages/modplatform/legacy_ftb/ListModel.h b/launcher/pages/modplatform/legacy_ftb/ListModel.h
new file mode 100644
index 00000000..c55df000
--- /dev/null
+++ b/launcher/pages/modplatform/legacy_ftb/ListModel.h
@@ -0,0 +1,78 @@
+#pragma once
+
+#include <modplatform/legacy_ftb/PackHelpers.h>
+#include <RWStorage.h>
+
+#include <QAbstractListModel>
+#include <QSortFilterProxyModel>
+#include <QThreadPool>
+#include <QIcon>
+#include <QStyledItemDelegate>
+
+#include <functional>
+
+namespace LegacyFTB {
+
+typedef QMap<QString, QIcon> FTBLogoMap;
+typedef std::function<void(QString)> LogoCallback;
+
+class FilterModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+public:
+    FilterModel(QObject* parent = Q_NULLPTR);
+    enum Sorting {
+        ByName,
+        ByGameVersion
+    };
+    const QMap<QString, Sorting> getAvailableSortings();
+    QString translateCurrentSorting();
+    void setSorting(Sorting sorting);
+    Sorting getCurrentSorting();
+
+protected:
+    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
+    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
+
+private:
+    QMap<QString, Sorting> sortings;
+    Sorting currentSorting;
+
+};
+
+class ListModel : public QAbstractListModel
+{
+    Q_OBJECT
+private:
+    ModpackList modpacks;
+    QStringList m_failedLogos;
+    QStringList m_loadingLogos;
+    FTBLogoMap m_logoMap;
+    QMap<QString, LogoCallback> waitingCallbacks;
+
+    void requestLogo(QString file);
+    QString translatePackType(PackType type) const;
+
+
+private slots:
+    void logoFailed(QString logo);
+    void logoLoaded(QString logo, QIcon out);
+
+public:
+    ListModel(QObject *parent);
+    ~ListModel();
+    int rowCount(const QModelIndex &parent) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+
+    void fill(ModpackList modpacks);
+    void addPack(Modpack modpack);
+    void clear();
+    void remove(int row);
+
+    Modpack at(int row);
+    void getLogo(const QString &logo, LogoCallback callback);
+};
+
+}
diff --git a/launcher/pages/modplatform/legacy_ftb/Page.cpp b/launcher/pages/modplatform/legacy_ftb/Page.cpp
new file mode 100644
index 00000000..a438f76c
--- /dev/null
+++ b/launcher/pages/modplatform/legacy_ftb/Page.cpp
@@ -0,0 +1,369 @@
+#include "Page.h"
+#include "ui_Page.h"
+
+#include <QInputDialog>
+
+#include "MultiMC.h"
+#include "dialogs/CustomMessageBox.h"
+#include "dialogs/NewInstanceDialog.h"
+#include "modplatform/legacy_ftb/PackFetchTask.h"
+#include "modplatform/legacy_ftb/PackInstallTask.h"
+#include "modplatform/legacy_ftb/PrivatePackManager.h"
+#include "ListModel.h"
+
+namespace LegacyFTB {
+
+Page::Page(NewInstanceDialog* dialog, QWidget *parent)
+    : QWidget(parent), dialog(dialog), ui(new Ui::Page)
+{
+    ftbFetchTask.reset(new PackFetchTask());
+    ftbPrivatePacks.reset(new PrivatePackManager());
+
+    ui->setupUi(this);
+
+    {
+        publicFilterModel = new FilterModel(this);
+        publicListModel = new ListModel(this);
+        publicFilterModel->setSourceModel(publicListModel);
+
+        ui->publicPackList->setModel(publicFilterModel);
+        ui->publicPackList->setSortingEnabled(true);
+        ui->publicPackList->header()->hide();
+        ui->publicPackList->setIndentation(0);
+        ui->publicPackList->setIconSize(QSize(42, 42));
+
+        for(int i = 0; i < publicFilterModel->getAvailableSortings().size(); i++)
+        {
+            ui->sortByBox->addItem(publicFilterModel->getAvailableSortings().keys().at(i));
+        }
+
+        ui->sortByBox->setCurrentText(publicFilterModel->translateCurrentSorting());
+    }
+
+    {
+        thirdPartyFilterModel = new FilterModel(this);
+        thirdPartyModel = new ListModel(this);
+        thirdPartyFilterModel->setSourceModel(thirdPartyModel);
+
+        ui->thirdPartyPackList->setModel(thirdPartyFilterModel);
+        ui->thirdPartyPackList->setSortingEnabled(true);
+        ui->thirdPartyPackList->header()->hide();
+        ui->thirdPartyPackList->setIndentation(0);
+        ui->thirdPartyPackList->setIconSize(QSize(42, 42));
+
+        thirdPartyFilterModel->setSorting(publicFilterModel->getCurrentSorting());
+    }
+
+    {
+        privateFilterModel = new FilterModel(this);
+        privateListModel = new ListModel(this);
+        privateFilterModel->setSourceModel(privateListModel);
+
+        ui->privatePackList->setModel(privateFilterModel);
+        ui->privatePackList->setSortingEnabled(true);
+        ui->privatePackList->header()->hide();
+        ui->privatePackList->setIndentation(0);
+        ui->privatePackList->setIconSize(QSize(42, 42));
+
+        privateFilterModel->setSorting(publicFilterModel->getCurrentSorting());
+    }
+
+    ui->versionSelectionBox->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+    ui->versionSelectionBox->view()->parentWidget()->setMaximumHeight(300);
+
+    connect(ui->sortByBox, &QComboBox::currentTextChanged, this, &Page::onSortingSelectionChanged);
+    connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this, &Page::onVersionSelectionItemChanged);
+
+    connect(ui->publicPackList->selectionModel(), &QItemSelectionModel::currentChanged, this, &Page::onPublicPackSelectionChanged);
+    connect(ui->thirdPartyPackList->selectionModel(), &QItemSelectionModel::currentChanged, this, &Page::onThirdPartyPackSelectionChanged);
+    connect(ui->privatePackList->selectionModel(), &QItemSelectionModel::currentChanged, this, &Page::onPrivatePackSelectionChanged);
+
+    connect(ui->addPackBtn, &QPushButton::pressed, this, &Page::onAddPackClicked);
+    connect(ui->removePackBtn, &QPushButton::pressed, this, &Page::onRemovePackClicked);
+
+    connect(ui->tabWidget, &QTabWidget::currentChanged, this, &Page::onTabChanged);
+
+    // ui->modpackInfo->setOpenExternalLinks(true);
+
+    ui->publicPackList->selectionModel()->reset();
+    ui->thirdPartyPackList->selectionModel()->reset();
+    ui->privatePackList->selectionModel()->reset();
+
+    onTabChanged(ui->tabWidget->currentIndex());
+}
+
+Page::~Page()
+{
+    delete ui;
+}
+
+bool Page::shouldDisplay() const
+{
+    return true;
+}
+
+void Page::openedImpl()
+{
+    if(!initialized)
+    {
+        connect(ftbFetchTask.get(), &PackFetchTask::finished, this, &Page::ftbPackDataDownloadSuccessfully);
+        connect(ftbFetchTask.get(), &PackFetchTask::failed, this, &Page::ftbPackDataDownloadFailed);
+
+        connect(ftbFetchTask.get(), &PackFetchTask::privateFileDownloadFinished, this, &Page::ftbPrivatePackDataDownloadSuccessfully);
+        connect(ftbFetchTask.get(), &PackFetchTask::privateFileDownloadFailed, this, &Page::ftbPrivatePackDataDownloadFailed);
+
+        ftbFetchTask->fetch();
+        ftbPrivatePacks->load();
+        ftbFetchTask->fetchPrivate(ftbPrivatePacks->getCurrentPackCodes().toList());
+        initialized = true;
+    }
+    suggestCurrent();
+}
+
+void Page::suggestCurrent()
+{
+    if(!isOpened)
+    {
+        return;
+    }
+
+    if(selected.broken || selectedVersion.isEmpty())
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    dialog->setSuggestedPack(selected.name, new PackInstallTask(selected, selectedVersion));
+    QString editedLogoName;
+    if(selected.logo.toLower().startsWith("ftb"))
+    {
+        editedLogoName = selected.logo;
+    }
+    else
+    {
+        editedLogoName = "ftb_" + selected.logo;
+    }
+
+    editedLogoName = editedLogoName.left(editedLogoName.lastIndexOf(".png"));
+
+    if(selected.type == PackType::Public)
+    {
+        publicListModel->getLogo(selected.logo, [this, editedLogoName](QString logo)
+        {
+            dialog->setSuggestedIconFromFile(logo, editedLogoName);
+        });
+    }
+    else if (selected.type == PackType::ThirdParty)
+    {
+        thirdPartyModel->getLogo(selected.logo, [this, editedLogoName](QString logo)
+        {
+            dialog->setSuggestedIconFromFile(logo, editedLogoName);
+        });
+    }
+    else if (selected.type == PackType::Private)
+    {
+        privateListModel->getLogo(selected.logo, [this, editedLogoName](QString logo)
+        {
+            dialog->setSuggestedIconFromFile(logo, editedLogoName);
+        });
+    }
+}
+
+void Page::ftbPackDataDownloadSuccessfully(ModpackList publicPacks, ModpackList thirdPartyPacks)
+{
+    publicListModel->fill(publicPacks);
+    thirdPartyModel->fill(thirdPartyPacks);
+}
+
+void Page::ftbPackDataDownloadFailed(QString reason)
+{
+    //TODO: Display the error
+}
+
+void Page::ftbPrivatePackDataDownloadSuccessfully(Modpack pack)
+{
+    privateListModel->addPack(pack);
+}
+
+void Page::ftbPrivatePackDataDownloadFailed(QString reason, QString packCode)
+{
+    auto reply = QMessageBox::question(
+        this,
+        tr("FTB private packs"),
+        tr("Failed to download pack information for code %1.\nShould it be removed now?").arg(packCode)
+    );
+    if(reply == QMessageBox::Yes)
+    {
+        ftbPrivatePacks->remove(packCode);
+    }
+}
+
+void Page::onPublicPackSelectionChanged(QModelIndex now, QModelIndex prev)
+{
+    if(!now.isValid())
+    {
+        onPackSelectionChanged();
+        return;
+    }
+    Modpack selectedPack = publicFilterModel->data(now, Qt::UserRole).value<Modpack>();
+    onPackSelectionChanged(&selectedPack);
+}
+
+void Page::onThirdPartyPackSelectionChanged(QModelIndex now, QModelIndex prev)
+{
+    if(!now.isValid())
+    {
+        onPackSelectionChanged();
+        return;
+    }
+    Modpack selectedPack = thirdPartyFilterModel->data(now, Qt::UserRole).value<Modpack>();
+    onPackSelectionChanged(&selectedPack);
+}
+
+void Page::onPrivatePackSelectionChanged(QModelIndex now, QModelIndex prev)
+{
+    if(!now.isValid())
+    {
+        onPackSelectionChanged();
+        return;
+    }
+    Modpack selectedPack = privateFilterModel->data(now, Qt::UserRole).value<Modpack>();
+    onPackSelectionChanged(&selectedPack);
+}
+
+void Page::onPackSelectionChanged(Modpack* pack)
+{
+    ui->versionSelectionBox->clear();
+    if(pack)
+    {
+        currentModpackInfo->setHtml("Pack by <b>" + pack->author + "</b>" +
+                                    "<br>Minecraft " + pack->mcVersion + "<br>" + "<br>" + pack->description + "<ul><li>" + pack->mods.replace(";", "</li><li>")
+                                    + "</li></ul>");
+        bool currentAdded = false;
+
+        for(int i = 0; i < pack->oldVersions.size(); i++)
+        {
+            if(pack->currentVersion == pack->oldVersions.at(i))
+            {
+                currentAdded = true;
+            }
+            ui->versionSelectionBox->addItem(pack->oldVersions.at(i));
+        }
+
+        if(!currentAdded)
+        {
+            ui->versionSelectionBox->addItem(pack->currentVersion);
+        }
+        selected = *pack;
+    }
+    else
+    {
+        currentModpackInfo->setHtml("");
+        ui->versionSelectionBox->clear();
+        if(isOpened)
+        {
+            dialog->setSuggestedPack();
+        }
+        return;
+    }
+    suggestCurrent();
+}
+
+void Page::onVersionSelectionItemChanged(QString data)
+{
+    if(data.isNull() || data.isEmpty())
+    {
+        selectedVersion = "";
+        return;
+    }
+
+    selectedVersion = data;
+    suggestCurrent();
+}
+
+void Page::onSortingSelectionChanged(QString data)
+{
+    FilterModel::Sorting toSet = publicFilterModel->getAvailableSortings().value(data);
+    publicFilterModel->setSorting(toSet);
+    thirdPartyFilterModel->setSorting(toSet);
+    privateFilterModel->setSorting(toSet);
+}
+
+void Page::onTabChanged(int tab)
+{
+    if(tab == 1)
+    {
+        currentModel = thirdPartyFilterModel;
+        currentList = ui->thirdPartyPackList;
+        currentModpackInfo = ui->thirdPartyPackDescription;
+    }
+    else if(tab == 2)
+    {
+        currentModel = privateFilterModel;
+        currentList = ui->privatePackList;
+        currentModpackInfo = ui->privatePackDescription;
+    }
+    else
+    {
+        currentModel = publicFilterModel;
+        currentList = ui->publicPackList;
+        currentModpackInfo = ui->publicPackDescription;
+    }
+
+    currentList->selectionModel()->reset();
+    QModelIndex idx = currentList->currentIndex();
+    if(idx.isValid())
+    {
+        auto pack = currentModel->data(idx, Qt::UserRole).value<Modpack>();
+        onPackSelectionChanged(&pack);
+    }
+    else
+    {
+        onPackSelectionChanged();
+    }
+}
+
+void Page::onAddPackClicked()
+{
+    bool ok;
+    QString text = QInputDialog::getText(
+        this,
+        tr("Add FTB pack"),
+        tr("Enter pack code:"),
+        QLineEdit::Normal,
+        QString(),
+        &ok
+    );
+    if(ok && !text.isEmpty())
+    {
+        ftbPrivatePacks->add(text);
+        ftbFetchTask->fetchPrivate({text});
+    }
+}
+
+void Page::onRemovePackClicked()
+{
+    auto index = ui->privatePackList->currentIndex();
+    if(!index.isValid())
+    {
+        return;
+    }
+    auto row = index.row();
+    Modpack pack = privateListModel->at(row);
+    auto answer = QMessageBox::question(
+        this,
+        tr("Remove pack"),
+        tr("Are you sure you want to remove pack %1?").arg(pack.name),
+        QMessageBox::Yes | QMessageBox::No
+    );
+    if(answer != QMessageBox::Yes)
+    {
+        return;
+    }
+
+    ftbPrivatePacks->remove(pack.packCode);
+    privateListModel->remove(row);
+    onPackSelectionChanged();
+}
+
+}
diff --git a/launcher/pages/modplatform/legacy_ftb/Page.h b/launcher/pages/modplatform/legacy_ftb/Page.h
new file mode 100644
index 00000000..e840216e
--- /dev/null
+++ b/launcher/pages/modplatform/legacy_ftb/Page.h
@@ -0,0 +1,119 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QWidget>
+#include <QTreeView>
+#include <QTextBrowser>
+
+#include "pages/BasePage.h"
+#include <MultiMC.h>
+#include "tasks/Task.h"
+#include "modplatform/legacy_ftb/PackHelpers.h"
+#include "modplatform/legacy_ftb/PackFetchTask.h"
+#include "QObjectPtr.h"
+
+class NewInstanceDialog;
+
+namespace LegacyFTB {
+
+namespace Ui
+{
+class Page;
+}
+
+class ListModel;
+class FilterModel;
+class PrivatePackListModel;
+class PrivatePackFilterModel;
+class PrivatePackManager;
+
+class Page : public QWidget, public BasePage
+{
+    Q_OBJECT
+
+public:
+    explicit Page(NewInstanceDialog * dialog, QWidget *parent = 0);
+    virtual ~Page();
+    QString displayName() const override
+    {
+        return tr("FTB Legacy");
+    }
+    QIcon icon() const override
+    {
+        return MMC->getThemedIcon("ftb_logo");
+    }
+    QString id() const override
+    {
+        return "legacy_ftb";
+    }
+    QString helpPage() const override
+    {
+        return "FTB-platform";
+    }
+    bool shouldDisplay() const override;
+    void openedImpl() override;
+
+private:
+    void suggestCurrent();
+    void onPackSelectionChanged(Modpack *pack = nullptr);
+
+private slots:
+    void ftbPackDataDownloadSuccessfully(ModpackList publicPacks, ModpackList thirdPartyPacks);
+    void ftbPackDataDownloadFailed(QString reason);
+
+    void ftbPrivatePackDataDownloadSuccessfully(Modpack pack);
+    void ftbPrivatePackDataDownloadFailed(QString reason, QString packCode);
+
+    void onSortingSelectionChanged(QString data);
+    void onVersionSelectionItemChanged(QString data);
+
+    void onPublicPackSelectionChanged(QModelIndex first, QModelIndex second);
+    void onThirdPartyPackSelectionChanged(QModelIndex first, QModelIndex second);
+    void onPrivatePackSelectionChanged(QModelIndex first, QModelIndex second);
+
+    void onTabChanged(int tab);
+
+    void onAddPackClicked();
+    void onRemovePackClicked();
+
+private:
+    FilterModel* currentModel = nullptr;
+    QTreeView* currentList = nullptr;
+    QTextBrowser* currentModpackInfo = nullptr;
+
+    bool initialized = false;
+    Modpack selected;
+    QString selectedVersion;
+
+    ListModel* publicListModel = nullptr;
+    FilterModel* publicFilterModel = nullptr;
+
+    ListModel *thirdPartyModel = nullptr;
+    FilterModel *thirdPartyFilterModel = nullptr;
+
+    ListModel *privateListModel = nullptr;
+    FilterModel *privateFilterModel = nullptr;
+
+    unique_qobject_ptr<PackFetchTask> ftbFetchTask;
+    std::unique_ptr<PrivatePackManager> ftbPrivatePacks;
+
+    NewInstanceDialog* dialog = nullptr;
+
+    Ui::Page *ui = nullptr;
+};
+
+}
diff --git a/launcher/pages/modplatform/legacy_ftb/Page.ui b/launcher/pages/modplatform/legacy_ftb/Page.ui
new file mode 100644
index 00000000..15e5d432
--- /dev/null
+++ b/launcher/pages/modplatform/legacy_ftb/Page.ui
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>LegacyFTB::Page</class>
+ <widget class="QWidget" name="LegacyFTB::Page">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>709</width>
+    <height>602</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QTabWidget" name="tabWidget">
+     <property name="currentIndex">
+      <number>0</number>
+     </property>
+     <widget class="QWidget" name="tab">
+      <attribute name="title">
+       <string>Public</string>
+      </attribute>
+      <layout class="QGridLayout" name="gridLayout">
+       <item row="0" column="0">
+        <widget class="QTreeView" name="publicPackList">
+         <property name="maximumSize">
+          <size>
+           <width>250</width>
+           <height>16777215</height>
+          </size>
+         </property>
+         <property name="alternatingRowColors">
+          <bool>true</bool>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QTextBrowser" name="publicPackDescription"/>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QWidget" name="tab_2">
+      <attribute name="title">
+       <string>3rd Party</string>
+      </attribute>
+      <layout class="QGridLayout" name="gridLayout_3">
+       <item row="0" column="1">
+        <widget class="QTextBrowser" name="thirdPartyPackDescription"/>
+       </item>
+       <item row="0" column="0">
+        <widget class="QTreeView" name="thirdPartyPackList">
+         <property name="maximumSize">
+          <size>
+           <width>250</width>
+           <height>16777215</height>
+          </size>
+         </property>
+         <property name="alternatingRowColors">
+          <bool>true</bool>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QWidget" name="tab_3">
+      <attribute name="title">
+       <string>Private</string>
+      </attribute>
+      <layout class="QGridLayout" name="gridLayout_2">
+       <item row="0" column="0">
+        <widget class="QTreeView" name="privatePackList">
+         <property name="maximumSize">
+          <size>
+           <width>250</width>
+           <height>16777215</height>
+          </size>
+         </property>
+         <property name="alternatingRowColors">
+          <bool>true</bool>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="0">
+        <widget class="QPushButton" name="addPackBtn">
+         <property name="text">
+          <string>Add pack</string>
+         </property>
+        </widget>
+       </item>
+       <item row="2" column="0">
+        <widget class="QPushButton" name="removePackBtn">
+         <property name="text">
+          <string>Remove selected pack</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1" rowspan="3">
+        <widget class="QTextBrowser" name="privatePackDescription"/>
+       </item>
+      </layout>
+     </widget>
+    </widget>
+   </item>
+   <item>
+    <layout class="QGridLayout" name="gridLayout_4">
+     <item row="0" column="1">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Version selected:</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="2">
+      <widget class="QComboBox" name="versionSelectionBox"/>
+     </item>
+     <item row="0" column="0">
+      <widget class="QComboBox" name="sortByBox">
+       <property name="minimumSize">
+        <size>
+         <width>265</width>
+         <height>0</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/launcher/pages/modplatform/technic/TechnicData.h b/launcher/pages/modplatform/technic/TechnicData.h
new file mode 100644
index 00000000..50fd75e8
--- /dev/null
+++ b/launcher/pages/modplatform/technic/TechnicData.h
@@ -0,0 +1,42 @@
+/* Copyright 2020-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QList>
+#include <QString>
+
+namespace Technic {
+struct Modpack {
+    QString slug;
+
+    QString name;
+    QString logoUrl;
+    QString logoName;
+
+    bool broken = true;
+
+    QString url;
+    bool isSolder = false;
+    QString minecraftVersion;
+
+    bool metadataLoaded = false;
+    QString websiteUrl;
+    QString author;
+    QString description;
+};
+}
+
+Q_DECLARE_METATYPE(Technic::Modpack)
diff --git a/launcher/pages/modplatform/technic/TechnicModel.cpp b/launcher/pages/modplatform/technic/TechnicModel.cpp
new file mode 100644
index 00000000..def30783
--- /dev/null
+++ b/launcher/pages/modplatform/technic/TechnicModel.cpp
@@ -0,0 +1,238 @@
+/* Copyright 2020-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "TechnicModel.h"
+#include "Env.h"
+#include "MultiMC.h"
+#include "Json.h"
+
+#include <QIcon>
+
+Technic::ListModel::ListModel(QObject *parent) : QAbstractListModel(parent)
+{
+}
+
+Technic::ListModel::~ListModel()
+{
+}
+
+QVariant Technic::ListModel::data(const QModelIndex& index, int role) const
+{
+    int pos = index.row();
+    if(pos >= modpacks.size() || pos < 0 || !index.isValid())
+    {
+        return QString("INVALID INDEX %1").arg(pos);
+    }
+
+    Modpack pack = modpacks.at(pos);
+    if(role == Qt::DisplayRole)
+    {
+        return pack.name;
+    }
+    else if(role == Qt::DecorationRole)
+    {
+        if(m_logoMap.contains(pack.logoName))
+        {
+            return (m_logoMap.value(pack.logoName));
+        }
+        QIcon icon = MMC->getThemedIcon("screenshot-placeholder");
+        ((ListModel *)this)->requestLogo(pack.logoName, pack.logoUrl);
+        return icon;
+    }
+    else if(role == Qt::UserRole)
+    {
+        QVariant v;
+        v.setValue(pack);
+        return v;
+    }
+    return QVariant();
+}
+
+int Technic::ListModel::columnCount(const QModelIndex&) const
+{
+    return 1;
+}
+
+int Technic::ListModel::rowCount(const QModelIndex&) const
+{
+    return modpacks.size();
+}
+
+void Technic::ListModel::searchWithTerm(const QString& term)
+{
+    if(currentSearchTerm == term && currentSearchTerm.isNull() == term.isNull()) {
+        return;
+    }
+    currentSearchTerm = term;
+    if(jobPtr) {
+        jobPtr->abort();
+        searchState = ResetRequested;
+        return;
+    }
+    else {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+        searchState = None;
+    }
+    performSearch();
+}
+
+void Technic::ListModel::performSearch()
+{
+    NetJob *netJob = new NetJob("Technic::Search");
+    QString searchUrl = "";
+    if (currentSearchTerm.isEmpty()) {
+        searchUrl = "https://api.technicpack.net/trending?build=multimc";
+    }
+    else
+    {
+        searchUrl = QString(
+            "https://api.technicpack.net/search?build=multimc&q=%1"
+        ).arg(currentSearchTerm);
+    }
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
+    jobPtr = netJob;
+    jobPtr->start();
+    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::searchRequestFinished);
+    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
+}
+
+void Technic::ListModel::searchRequestFinished()
+{
+    jobPtr.reset();
+
+    QJsonParseError parse_error;
+    QJsonDocument doc = QJsonDocument::fromJson(response, &parse_error);
+    if(parse_error.error != QJsonParseError::NoError)
+    {
+        qWarning() << "Error while parsing JSON response from Technic at " << parse_error.offset << " reason: " << parse_error.errorString();
+        qWarning() << response;
+        return;
+    }
+
+    QList<Modpack> newList;
+    try {
+        auto root = Json::requireObject(doc);
+        auto objs = Json::requireArray(root, "modpacks");
+        for (auto technicPack: objs) {
+            Modpack pack;
+            auto technicPackObject = Json::requireObject(technicPack);
+            pack.name = Json::requireString(technicPackObject, "name");
+            pack.slug = Json::requireString(technicPackObject, "slug");
+            if (pack.slug == "vanilla")
+                continue;
+
+            auto rawURL = Json::ensureString(technicPackObject, "iconUrl", "null");
+            if(rawURL == "null") {
+                pack.logoUrl = "null";
+                pack.logoName = "null";
+            }
+            else {
+                pack.logoUrl = rawURL;
+                pack.logoName = rawURL.section(QLatin1Char('/'), -1).section(QLatin1Char('.'), 0, 0);
+            }
+            pack.broken = false;
+            newList.append(pack);
+        }
+    }
+    catch (const JSONValidationError &err)
+    {
+        qCritical() << "Couldn't parse technic search results:" << err.cause() ;
+        return;
+    }
+    searchState = Finished;
+    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
+    modpacks.append(newList);
+    endInsertRows();
+}
+
+void Technic::ListModel::getLogo(const QString& logo, const QString& logoUrl, Technic::LogoCallback callback)
+{
+    if(m_logoMap.contains(logo))
+    {
+        callback(ENV.metacache()->resolveEntry("TechnicPacks", QString("logos/%1").arg(logo))->getFullPath());
+    }
+    else
+    {
+        requestLogo(logo, logoUrl);
+    }
+}
+
+void Technic::ListModel::searchRequestFailed()
+{
+    jobPtr.reset();
+
+    if(searchState == ResetRequested)
+    {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+
+        performSearch();
+    }
+    else
+    {
+        searchState = Finished;
+    }
+}
+
+
+void Technic::ListModel::logoLoaded(QString logo, QString out)
+{
+    m_loadingLogos.removeAll(logo);
+    m_logoMap.insert(logo, QIcon(out));
+    for(int i = 0; i < modpacks.size(); i++)
+    {
+        if(modpacks[i].logoName == logo)
+        {
+            emit dataChanged(createIndex(i, 0), createIndex(i, 0), {Qt::DecorationRole});
+        }
+    }
+}
+
+void Technic::ListModel::logoFailed(QString logo)
+{
+    m_failedLogos.append(logo);
+    m_loadingLogos.removeAll(logo);
+}
+
+void Technic::ListModel::requestLogo(QString logo, QString url)
+{
+    if(m_loadingLogos.contains(logo) || m_failedLogos.contains(logo) || logo == "null")
+    {
+        return;
+    }
+
+    MetaEntryPtr entry = ENV.metacache()->resolveEntry("TechnicPacks", QString("logos/%1").arg(logo));
+    NetJob *job = new NetJob(QString("Technic Icon Download %1").arg(logo));
+    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+
+    auto fullPath = entry->getFullPath();
+
+    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath]
+    {
+        logoLoaded(logo, fullPath);
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, logo]
+    {
+        logoFailed(logo);
+    });
+
+    job->start();
+
+    m_loadingLogos.append(logo);
+}
diff --git a/launcher/pages/modplatform/technic/TechnicModel.h b/launcher/pages/modplatform/technic/TechnicModel.h
new file mode 100644
index 00000000..82a03842
--- /dev/null
+++ b/launcher/pages/modplatform/technic/TechnicModel.h
@@ -0,0 +1,70 @@
+/* Copyright 2020-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QModelIndex>
+
+#include "TechnicData.h"
+#include "net/NetJob.h"
+
+namespace Technic {
+
+typedef std::function<void(QString)> LogoCallback;
+
+class ListModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+public:
+    ListModel(QObject *parent);
+    virtual ~ListModel();
+
+    virtual QVariant data(const QModelIndex& index, int role) const;
+    virtual int columnCount(const QModelIndex& parent) const;
+    virtual int rowCount(const QModelIndex& parent) const;
+
+    void getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback);
+    void searchWithTerm(const QString & term);
+
+private slots:
+    void searchRequestFinished();
+    void searchRequestFailed();
+
+    void logoFailed(QString logo);
+    void logoLoaded(QString logo, QString out);
+
+private:
+    void performSearch();
+    void requestLogo(QString logo, QString url);
+
+private:
+    QList<Modpack> modpacks;
+    QStringList m_failedLogos;
+    QStringList m_loadingLogos;
+    QMap<QString, QIcon> m_logoMap;
+    QMap<QString, LogoCallback> waitingCallbacks;
+
+    QString currentSearchTerm;
+    enum SearchState {
+        None,
+        ResetRequested,
+        Finished
+    } searchState = None;
+    NetJobPtr jobPtr;
+    QByteArray response;
+};
+
+}
diff --git a/launcher/pages/modplatform/technic/TechnicPage.cpp b/launcher/pages/modplatform/technic/TechnicPage.cpp
new file mode 100644
index 00000000..e836f767
--- /dev/null
+++ b/launcher/pages/modplatform/technic/TechnicPage.cpp
@@ -0,0 +1,198 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "TechnicPage.h"
+#include "ui_TechnicPage.h"
+
+#include "MultiMC.h"
+#include "dialogs/NewInstanceDialog.h"
+#include "TechnicModel.h"
+#include <QKeyEvent>
+#include "modplatform/technic/SingleZipPackInstallTask.h"
+#include "modplatform/technic/SolderPackInstallTask.h"
+#include "Json.h"
+
+TechnicPage::TechnicPage(NewInstanceDialog* dialog, QWidget *parent)
+    : QWidget(parent), ui(new Ui::TechnicPage), dialog(dialog)
+{
+    ui->setupUi(this);
+    connect(ui->searchButton, &QPushButton::clicked, this, &TechnicPage::triggerSearch);
+    ui->searchEdit->installEventFilter(this);
+    model = new Technic::ListModel(this);
+    ui->packView->setModel(model);
+    connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &TechnicPage::onSelectionChanged);
+}
+
+bool TechnicPage::eventFilter(QObject* watched, QEvent* event)
+{
+    if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
+        QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
+        if (keyEvent->key() == Qt::Key_Return) {
+            triggerSearch();
+            keyEvent->accept();
+            return true;
+        }
+    }
+    return QWidget::eventFilter(watched, event);
+}
+
+TechnicPage::~TechnicPage()
+{
+    delete ui;
+}
+
+bool TechnicPage::shouldDisplay() const
+{
+    return true;
+}
+
+void TechnicPage::openedImpl()
+{
+    suggestCurrent();
+    triggerSearch();
+}
+
+void TechnicPage::triggerSearch() {
+    model->searchWithTerm(ui->searchEdit->text());
+}
+
+void TechnicPage::onSelectionChanged(QModelIndex first, QModelIndex second)
+{
+    if(!first.isValid())
+    {
+        if(isOpened)
+        {
+            dialog->setSuggestedPack();
+        }
+        //ui->frame->clear();
+        return;
+    }
+
+    current = model->data(first, Qt::UserRole).value<Technic::Modpack>();
+    suggestCurrent();
+}
+
+void TechnicPage::suggestCurrent()
+{
+    if (!isOpened)
+    {
+        return;
+    }
+    if (current.broken)
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    QString editedLogoName = "technic_" + current.logoName.section(".", 0, 0);
+    model->getLogo(current.logoName, current.logoUrl, [this, editedLogoName](QString logo)
+    {
+        dialog->setSuggestedIconFromFile(logo, editedLogoName);
+    });
+
+    if (current.metadataLoaded)
+    {
+        metadataLoaded();
+        return;
+    }
+    
+    NetJob *netJob = new NetJob(QString("Technic::PackMeta(%1)").arg(current.name));
+    std::shared_ptr<QByteArray> response = std::make_shared<QByteArray>();
+    QString slug = current.slug;
+    netJob->addNetAction(Net::Download::makeByteArray(QString("https://api.technicpack.net/modpack/%1?build=multimc").arg(slug), response.get()));
+    QObject::connect(netJob, &NetJob::succeeded, this, [this, response, slug]
+    {
+        if (current.slug != slug)
+        {
+            return;
+        }
+        QJsonParseError parse_error;
+        QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
+        QJsonObject obj = doc.object();
+        if(parse_error.error != QJsonParseError::NoError)
+        {
+            qWarning() << "Error while parsing JSON response from Technic at " << parse_error.offset << " reason: " << parse_error.errorString();
+            qWarning() << *response;
+            return;
+        }
+        if (!obj.contains("url"))
+        {
+            qWarning() << "Json doesn't contain an url key";
+            return;
+        }
+        QJsonValueRef url = obj["url"];
+        if (url.isString())
+        {
+            current.url = url.toString();
+        }
+        else
+        {
+            if (!obj.contains("solder"))
+            {
+                qWarning() << "Json doesn't contain a valid url or solder key";
+                return;
+            }
+            QJsonValueRef solderUrl = obj["solder"];
+            if (solderUrl.isString())
+            {
+                current.url = solderUrl.toString();
+                current.isSolder = true;
+            }
+            else
+            {
+                qWarning() << "Json doesn't contain a valid url or solder key";
+                return;
+            }
+        }
+
+        current.minecraftVersion = Json::ensureString(obj, "minecraft", QString(), "__placeholder__");
+        current.websiteUrl = Json::ensureString(obj, "platformUrl", QString(), "__placeholder__");
+        current.author = Json::ensureString(obj, "user", QString(), "__placeholder__");
+        current.description = Json::ensureString(obj, "description", QString(), "__placeholder__");
+        current.metadataLoaded = true;
+        metadataLoaded();
+    });
+    netJob->start();
+}
+
+// expects current.metadataLoaded to be true
+void TechnicPage::metadataLoaded()
+{
+    QString text = "";
+    QString name = current.name;
+
+    if (current.websiteUrl.isEmpty())
+        // This allows injecting HTML here.
+        text = name;
+    else
+        // URL not properly escaped for inclusion in HTML. The name allows for injecting HTML.
+        text = "<a href=\"" + current.websiteUrl + "\">" + name + "</a>";
+    if (!current.author.isEmpty()) {
+        // This allows injecting HTML here
+        text += tr(" by ") + current.author;
+    }
+
+    ui->frame->setModText(text);
+    ui->frame->setModDescription(current.description);
+    if (!current.isSolder)
+    {
+        dialog->setSuggestedPack(current.name, new Technic::SingleZipPackInstallTask(current.url, current.minecraftVersion));
+    }
+    else
+    {
+        while (current.url.endsWith('/')) current.url.chop(1);
+        dialog->setSuggestedPack(current.name, new Technic::SolderPackInstallTask(current.url + "/modpack/" + current.slug, current.minecraftVersion));
+    }
+}
diff --git a/launcher/pages/modplatform/technic/TechnicPage.h b/launcher/pages/modplatform/technic/TechnicPage.h
new file mode 100644
index 00000000..27e1258a
--- /dev/null
+++ b/launcher/pages/modplatform/technic/TechnicPage.h
@@ -0,0 +1,78 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QWidget>
+
+#include "pages/BasePage.h"
+#include <MultiMC.h>
+#include "tasks/Task.h"
+#include "TechnicData.h"
+
+namespace Ui
+{
+class TechnicPage;
+}
+
+class NewInstanceDialog;
+
+namespace Technic {
+    class ListModel;
+}
+
+class TechnicPage : public QWidget, public BasePage
+{
+    Q_OBJECT
+
+public:
+    explicit TechnicPage(NewInstanceDialog* dialog, QWidget *parent = 0);
+    virtual ~TechnicPage();
+    virtual QString displayName() const override
+    {
+        return tr("Technic");
+    }
+    virtual QIcon icon() const override
+    {
+        return MMC->getThemedIcon("technic");
+    }
+    virtual QString id() const override
+    {
+        return "technic";
+    }
+    virtual QString helpPage() const override
+    {
+        return "Technic-platform";
+    }
+    virtual bool shouldDisplay() const override;
+
+    void openedImpl() override;
+
+    bool eventFilter(QObject* watched, QEvent* event) override;
+
+private:
+    void suggestCurrent();
+    void metadataLoaded();
+
+private slots:
+    void triggerSearch();
+    void onSelectionChanged(QModelIndex first, QModelIndex second);
+
+private:
+    Ui::TechnicPage *ui = nullptr;
+    NewInstanceDialog* dialog = nullptr;
+    Technic::ListModel* model = nullptr;
+    Technic::Modpack current;
+};
diff --git a/launcher/pages/modplatform/technic/TechnicPage.ui b/launcher/pages/modplatform/technic/TechnicPage.ui
new file mode 100644
index 00000000..2ca45dd2
--- /dev/null
+++ b/launcher/pages/modplatform/technic/TechnicPage.ui
@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TechnicPage</class>
+ <widget class="QWidget" name="TechnicPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>546</width>
+    <height>405</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QWidget" name="widget" native="true">
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QLineEdit" name="searchEdit">
+        <property name="placeholderText">
+         <string>Search and filter ...</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="searchButton">
+        <property name="text">
+         <string>Search</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QListView" name="packView">
+     <property name="horizontalScrollBarPolicy">
+      <enum>Qt::ScrollBarAlwaysOff</enum>
+     </property>
+     <property name="alternatingRowColors">
+      <bool>true</bool>
+     </property>
+     <property name="iconSize">
+      <size>
+       <width>48</width>
+       <height>48</height>
+      </size>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="MCModInfoFrame" name="frame">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="frameShape">
+      <enum>QFrame::StyledPanel</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Raised</enum>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MCModInfoFrame</class>
+   <extends>QFrame</extends>
+   <header>widgets/MCModInfoFrame.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <tabstops>
+  <tabstop>searchEdit</tabstop>
+  <tabstop>searchButton</tabstop>
+  <tabstop>packView</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>