Add offline mode support

1 files changed, 98 insertions, 0 deletions

diff --git a/launcher/ui/dialogs/OfflineLoginDialog.cpp b/launcher/ui/dialogs/OfflineLoginDialog.cpp
new file mode 100644
index 00000000..345ed40a
--- /dev/null
+++ b/launcher/ui/dialogs/OfflineLoginDialog.cpp
@@ -0,0 +1,98 @@
+#include "OfflineLoginDialog.h"
+#include "ui_OfflineLoginDialog.h"
+
+#include "minecraft/auth/AccountTask.h"
+
+#include <QtWidgets/QPushButton>
+
+OfflineLoginDialog::OfflineLoginDialog(QWidget *parent) : QDialog(parent), ui(new Ui::OfflineLoginDialog)
+{
+    ui->setupUi(this);
+    ui->progressBar->setVisible(false);
+    ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
+
+    connect(ui->buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
+    connect(ui->buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
+}
+
+OfflineLoginDialog::~OfflineLoginDialog()
+{
+    delete ui;
+}
+
+// Stage 1: User interaction
+void OfflineLoginDialog::accept()
+{
+    setUserInputsEnabled(false);
+    ui->progressBar->setVisible(true);
+
+    // Setup the login task and start it
+    m_account = MinecraftAccount::createOffline(ui->userTextBox->text());
+    m_loginTask = m_account->loginOffline();
+    connect(m_loginTask.get(), &Task::failed, this, &OfflineLoginDialog::onTaskFailed);
+    connect(m_loginTask.get(), &Task::succeeded, this, &OfflineLoginDialog::onTaskSucceeded);
+    connect(m_loginTask.get(), &Task::status, this, &OfflineLoginDialog::onTaskStatus);
+    connect(m_loginTask.get(), &Task::progress, this, &OfflineLoginDialog::onTaskProgress);
+    m_loginTask->start();
+}
+
+void OfflineLoginDialog::setUserInputsEnabled(bool enable)
+{
+    ui->userTextBox->setEnabled(enable);
+    ui->buttonBox->setEnabled(enable);
+}
+
+// Enable the OK button only when the textbox contains something.
+void OfflineLoginDialog::on_userTextBox_textEdited(const QString &newText)
+{
+    ui->buttonBox->button(QDialogButtonBox::Ok)
+        ->setEnabled(!newText.isEmpty());
+}
+
+void OfflineLoginDialog::onTaskFailed(const QString &reason)
+{
+    // Set message
+    auto lines = reason.split('\n');
+    QString processed;
+    for(auto line: lines) {
+        if(line.size()) {
+            processed += "<font color='red'>" + line + "</font><br />";
+        }
+        else {
+            processed += "<br />";
+        }
+    }
+    ui->label->setText(processed);
+
+    // Re-enable user-interaction
+    setUserInputsEnabled(true);
+    ui->progressBar->setVisible(false);
+}
+
+void OfflineLoginDialog::onTaskSucceeded()
+{
+    QDialog::accept();
+}
+
+void OfflineLoginDialog::onTaskStatus(const QString &status)
+{
+    ui->label->setText(status);
+}
+
+void OfflineLoginDialog::onTaskProgress(qint64 current, qint64 total)
+{
+    ui->progressBar->setMaximum(total);
+    ui->progressBar->setValue(current);
+}
+
+// Public interface
+MinecraftAccountPtr OfflineLoginDialog::newAccount(QWidget *parent, QString msg)
+{
+    OfflineLoginDialog dlg(parent);
+    dlg.ui->label->setText(msg);
+    if (dlg.exec() == QDialog::Accepted)
+    {
+        return dlg.m_account;
+    }
+    return 0;
+}