refactor: Create a more clear hierarchy for some instance pages

Previously, the Shaders, Texture packs and Resource packs tabs had as
parent the ModFolderPage, making it so that making changes only to the
Mods page would require checking the id of the page for the correct one.
This was hackish and error-prone.

Now, those pages all inherit from a single class, ExternalResourcesPage,
that handles the basic behaviour of all of them, while allowing for
individual modification in code.

This is still not a clear separation, since internally, all those
resources are derived from Mods, so for now there's still some awkward
common code :/

1 files changed, 164 insertions, 0 deletions

diff --git a/launcher/ui/pages/instance/ExternalResourcesPage.ui b/launcher/ui/pages/instance/ExternalResourcesPage.ui
new file mode 100644
index 00000000..3982b6ee
--- /dev/null
+++ b/launcher/ui/pages/instance/ExternalResourcesPage.ui
@@ -0,0 +1,164 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExternalResourcesPage</class>
+ <widget class="QMainWindow" name="ExternalResourcesPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1042</width>
+    <height>501</height>
+   </rect>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QGridLayout" name="gridLayout">
+    <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 row="4" column="1" colspan="3">
+     <layout class="QGridLayout" name="gridLayout_2">
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="filterEdit">
+        <property name="clearButtonEnabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="filterLabel">
+        <property name="text">
+         <string>Filter:</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item row="2" column="1" colspan="3">
+     <widget class="MCModInfoFrame" name="frame">
+      <property name="sizePolicy">
+       <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="1" colspan="3">
+     <widget class="ModListView" name="treeView">
+      <property name="sizePolicy">
+       <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+      <property name="acceptDrops">
+       <bool>true</bool>
+      </property>
+      <property name="dragDropMode">
+       <enum>QAbstractItemView::DropOnly</enum>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="WideBar" name="actionsToolbar">
+   <property name="windowTitle">
+    <string>Actions</string>
+   </property>
+   <property name="toolButtonStyle">
+    <enum>Qt::ToolButtonTextOnly</enum>
+   </property>
+   <attribute name="toolBarArea">
+    <enum>RightToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+   <addaction name="actionAddItem"/>
+   <addaction name="separator"/>
+   <addaction name="actionRemoveItem"/>
+   <addaction name="actionEnableItem"/>
+   <addaction name="actionDisableItem"/>
+   <addaction name="actionViewConfigs"/>
+   <addaction name="actionViewFolder"/>
+  </widget>
+  <action name="actionAddItem">
+   <property name="text">
+    <string>&amp;Add</string>
+   </property>
+   <property name="toolTip">
+    <string>Add</string>
+   </property>
+  </action>
+  <action name="actionRemoveItem">
+   <property name="text">
+    <string>&amp;Remove</string>
+   </property>
+   <property name="toolTip">
+    <string>Remove selected item</string>
+   </property>
+  </action>
+  <action name="actionEnableItem">
+   <property name="text">
+    <string>&amp;Enable</string>
+   </property>
+   <property name="toolTip">
+    <string>Enable selected item</string>
+   </property>
+  </action>
+  <action name="actionDisableItem">
+   <property name="text">
+    <string>&amp;Disable</string>
+   </property>
+   <property name="toolTip">
+    <string>Disable selected item</string>
+   </property>
+  </action>
+  <action name="actionViewConfigs">
+   <property name="text">
+    <string>View &amp;Configs</string>
+   </property>
+   <property name="toolTip">
+    <string>Open the 'config' folder in the system file manager.</string>
+   </property>
+  </action>
+  <action name="actionViewFolder">
+   <property name="text">
+    <string>View &amp;Folder</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ModListView</class>
+   <extends>QTreeView</extends>
+   <header>ui/widgets/ModListView.h</header>
+  </customwidget>
+  <customwidget>
+   <class>MCModInfoFrame</class>
+   <extends>QFrame</extends>
+   <header>ui/widgets/MCModInfoFrame.h</header>
+   <container>1</container>
+  </customwidget>
+  <customwidget>
+   <class>WideBar</class>
+   <extends>QToolBar</extends>
+   <header>ui/widgets/WideBar.h</header>
+  </customwidget>
+ </customwidgets>
+ <tabstops>
+  <tabstop>treeView</tabstop>
+  <tabstop>filterEdit</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>