GH-2639 Add simple fabric loader installation support

3 files changed, 42 insertions, 1 deletions

diff --git a/application/pages/instance/VersionPage.cpp b/application/pages/instance/VersionPage.cpp
index cbe4a31c..699a5c10 100644
--- a/application/pages/instance/VersionPage.cpp
+++ b/application/pages/instance/VersionPage.cpp
@@ -180,6 +180,7 @@ void VersionPage::packageCurrent(const QModelIndex &current, const QModelIndex &
 
 void VersionPage::updateVersionControls()
 {
+    ui->fabricBtn->setEnabled(true);
     ui->forgeBtn->setEnabled(true);
     ui->liteloaderBtn->setEnabled(true);
     updateButtons();
@@ -187,6 +188,7 @@ void VersionPage::updateVersionControls()
 
 void VersionPage::disableVersionControls()
 {
+    ui->fabricBtn->setEnabled(false);
     ui->forgeBtn->setEnabled(false);
     ui->liteloaderBtn->setEnabled(false);
     ui->reloadBtn->setEnabled(false);
@@ -389,6 +391,33 @@ void VersionPage::on_forgeBtn_clicked()
     }
 }
 
+void VersionPage::on_fabricBtn_clicked()
+{
+    auto vlist = ENV.metadataIndex()->get("net.fabricmc.fabric-loader");
+    if(!vlist)
+    {
+        return;
+    }
+    VersionSelectDialog vselect(vlist.get(), tr("Select Fabric Loader version"), this);
+    vselect.setEmptyString(tr("No Fabric Loader versions are currently available."));
+    vselect.setEmptyErrorString(tr("Couldn't load or download the Fabric Loader version lists!"));
+
+    auto currentVersion = m_profile->getComponentVersion("net.fabricmc.fabric-loader");
+    if(!currentVersion.isEmpty())
+    {
+        vselect.setCurrentVersion(currentVersion);
+    }
+
+    if (vselect.exec() && vselect.selectedVersion())
+    {
+        auto vsn = vselect.selectedVersion();
+        m_profile->setComponentVersion("net.fabricmc.fabric-loader", vsn->descriptor());
+        m_profile->resolve(Net::Mode::Online);
+        preselect(m_profile->rowCount(QModelIndex())-1);
+        m_container->refreshContainer();
+    }
+}
+
 void VersionPage::on_addEmptyBtn_clicked()
 {
     NewComponentDialog compdialog(QString(), QString(), this);
diff --git a/application/pages/instance/VersionPage.h b/application/pages/instance/VersionPage.h
index 5432e009..4957c9ea 100644
--- a/application/pages/instance/VersionPage.h
+++ b/application/pages/instance/VersionPage.h
@@ -49,6 +49,7 @@ public:
     virtual bool shouldDisplay() const override;
 
 private slots:
+    void on_fabricBtn_clicked();
     void on_forgeBtn_clicked();
     void on_addEmptyBtn_clicked();
     void on_liteloaderBtn_clicked();
diff --git a/application/pages/instance/VersionPage.ui b/application/pages/instance/VersionPage.ui
index cfb13f94..40061a3a 100644
--- a/application/pages/instance/VersionPage.ui
+++ b/application/pages/instance/VersionPage.ui
@@ -171,6 +171,16 @@
           </widget>
          </item>
          <item>
+          <widget class="QPushButton" name="fabricBtn">
+           <property name="toolTip">
+            <string>Install the Minecraft Forge package.</string>
+           </property>
+           <property name="text">
+            <string>Install Fabric</string>
+           </property>
+          </widget>
+         </item>
+         <item>
           <widget class="QPushButton" name="liteloaderBtn">
            <property name="toolTip">
             <string>Install the LiteLoader package.</string>
@@ -298,6 +308,7 @@
   </customwidget>
  </customwidgets>
  <tabstops>
+  <tabstop>tabWidget</tabstop>
   <tabstop>packageView</tabstop>
   <tabstop>changeVersionBtn</tabstop>
   <tabstop>moveUpBtn</tabstop>
@@ -307,6 +318,7 @@
   <tabstop>editBtn</tabstop>
   <tabstop>revertBtn</tabstop>
   <tabstop>forgeBtn</tabstop>
+  <tabstop>fabricBtn</tabstop>
   <tabstop>liteloaderBtn</tabstop>
   <tabstop>modBtn</tabstop>
   <tabstop>jarmodBtn</tabstop>
@@ -314,7 +326,6 @@
   <tabstop>addEmptyBtn</tabstop>
   <tabstop>reloadBtn</tabstop>
   <tabstop>downloadBtn</tabstop>
-  <tabstop>tabWidget</tabstop>
  </tabstops>
  <resources/>
  <connections/>