2 files changed, 102 insertions, 13 deletions

diff --git a/launcher/ui/pages/instance/ShaderPackPage.cpp b/launcher/ui/pages/instance/ShaderPackPage.cpp
new file mode 100644
index 00000000..2dde4dc7
--- /dev/null
+++ b/launcher/ui/pages/instance/ShaderPackPage.cpp
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      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 "ShaderPackPage.h"
+#include "ui_ExternalResourcesPage.h"
+
+#include "ResourceDownloadTask.h"
+
+#include "minecraft/mod/ShaderPackFolderModel.h"
+
+#include "ui/dialogs/CustomMessageBox.h"
+#include "ui/dialogs/ProgressDialog.h"
+#include "ui/dialogs/ResourceDownloadDialog.h"
+
+
+ShaderPackPage::ShaderPackPage(MinecraftInstance* instance, std::shared_ptr<ShaderPackFolderModel> model, QWidget* parent)
+    : ExternalResourcesPage(instance, model, parent)
+{
+    ui->actionDownloadItem->setText(tr("Download shaders"));
+    ui->actionDownloadItem->setToolTip(tr("Download shaders from online platforms"));
+    ui->actionDownloadItem->setEnabled(true);
+    connect(ui->actionDownloadItem, &QAction::triggered, this, &ShaderPackPage::downloadShaders);
+    ui->actionsToolbar->insertActionBefore(ui->actionAddItem, ui->actionDownloadItem);
+
+    ui->actionViewConfigs->setVisible(false);
+}
+
+void ShaderPackPage::downloadShaders()
+{
+    if (!m_controlsEnabled)
+        return;
+    if (m_instance->typeName() != "Minecraft")
+        return;  // this is a null instance or a legacy instance
+
+    ResourceDownload::ShaderPackDownloadDialog mdownload(this, std::static_pointer_cast<ShaderPackFolderModel>(m_model), m_instance);
+    if (mdownload.exec()) {
+        auto tasks = new ConcurrentTask(this);
+        connect(tasks, &Task::failed, [this, tasks](QString reason) {
+            CustomMessageBox::selectable(this, tr("Error"), reason, QMessageBox::Critical)->show();
+            tasks->deleteLater();
+        });
+        connect(tasks, &Task::aborted, [this, tasks]() {
+            CustomMessageBox::selectable(this, tr("Aborted"), tr("Download stopped by user."), QMessageBox::Information)->show();
+            tasks->deleteLater();
+        });
+        connect(tasks, &Task::succeeded, [this, tasks]() {
+            QStringList warnings = tasks->warnings();
+            if (warnings.count())
+                CustomMessageBox::selectable(this, tr("Warnings"), warnings.join('\n'), QMessageBox::Warning)->show();
+
+            tasks->deleteLater();
+        });
+
+        for (auto& task : mdownload.getTasks()) {
+            tasks->addTask(task);
+        }
+
+        ProgressDialog loadDialog(this);
+        loadDialog.setSkipButton(true, tr("Abort"));
+        loadDialog.execWithTask(tasks);
+
+        m_model->update();
+    }
+}
diff --git a/launcher/ui/pages/instance/ShaderPackPage.h b/launcher/ui/pages/instance/ShaderPackPage.h
index 7f7ff8c1..09895949 100644
--- a/launcher/ui/pages/instance/ShaderPackPage.h
+++ b/launcher/ui/pages/instance/ShaderPackPage.h
@@ -36,28 +36,21 @@
 #pragma once
 
 #include "ExternalResourcesPage.h"
-#include "ui_ExternalResourcesPage.h"
-
-#include "minecraft/mod/ShaderPackFolderModel.h"
 
 class ShaderPackPage : public ExternalResourcesPage
 {
     Q_OBJECT
 public:
-    explicit ShaderPackPage(MinecraftInstance *instance, std::shared_ptr<ShaderPackFolderModel> model, QWidget *parent = 0)
-        : ExternalResourcesPage(instance, model, parent)
-    {
-        ui->actionViewConfigs->setVisible(false);
-    }
-    virtual ~ShaderPackPage() {}
+    explicit ShaderPackPage(MinecraftInstance *instance, std::shared_ptr<ShaderPackFolderModel> model, QWidget *parent = nullptr);
+    ~ShaderPackPage() override = default;
 
     QString displayName() const override { return tr("Shader packs"); }
     QIcon icon() const override { return APPLICATION->getThemedIcon("shaderpacks"); }
     QString id() const override { return "shaderpacks"; }
     QString helpPage() const override { return "Resource-packs"; }
 
-    virtual bool shouldDisplay() const override
-    {
-        return true;
-    }
+    bool shouldDisplay() const override { return true; }
+
+   public slots:
+    void downloadShaders();
 };