Try to be compatible with Qt 5.12

CMakeLists.txt

@@ -137,7 +137,7 @@ endif()
 #
 # Discover Qt dependencies.
 #
-find_package(Qt5 COMPONENTS Core Widgets LinguistTools Concurrent Svg Multimedia Qml QuickControls2 QuickWidgets REQUIRED)
+find_package(Qt5 5.12 COMPONENTS Core Widgets LinguistTools Concurrent Svg Multimedia Qml QuickControls2 QuickWidgets REQUIRED)
 find_package(Qt5QuickCompiler)
 find_package(Qt5DBus)
 

resources/qml/ChatPage.qml

@@ -3,7 +3,7 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 import QtQuick 2.9
-import QtQuick.Controls 2.13
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.3
 import "components"
 import im.nheko 1.0

resources/qml/CommunitiesList.qml

@@ -4,9 +4,9 @@
 
 import "./dialogs"
 import Qt.labs.platform 1.1 as Platform
-import QtQml 2.13
-import QtQuick 2.13
-import QtQuick.Controls 2.13
+import QtQml 2.12
+import QtQuick 2.12
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.3
 import im.nheko 1.0
 

resources/qml/ElidedLabel.qml

@@ -3,7 +3,7 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 import QtQuick 2.9
-import QtQuick.Controls 2.13
+import QtQuick.Controls 2.5
 import im.nheko 1.0
 
 Label {

resources/qml/RoomList.qml

@@ -4,9 +4,9 @@
 
 import "./dialogs"
 import Qt.labs.platform 1.1 as Platform
-import QtQml 2.13
-import QtQuick 2.13
-import QtQuick.Controls 2.13
+import QtQml 2.12
+import QtQuick 2.12
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.3
 import im.nheko 1.0
 

resources/qml/Root.qml

@@ -9,7 +9,7 @@ import "./voip"
 import Qt.labs.platform 1.1 as Platform
 import QtGraphicalEffects 1.0
 import QtQuick 2.9
-import QtQuick.Controls 2.13
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.3
 import QtQuick.Window 2.2
 import im.nheko 1.0

resources/qml/TimelineView.qml

@@ -9,7 +9,7 @@ import "./voip"
 import Qt.labs.platform 1.1 as Platform
 import QtGraphicalEffects 1.0
 import QtQuick 2.9
-import QtQuick.Controls 2.13
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.3
 import QtQuick.Window 2.2
 import im.nheko 1.0

resources/qml/components/AdaptiveLayout.qml

@@ -2,8 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
-import QtQuick 2.15
-import QtQuick.Controls 2.15
+import QtQuick 2.12
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.15
 import im.nheko 1.0
 
@@ -87,6 +87,13 @@ Container {
         x: parent.preferredWidth
         z: 3
 
+        CursorShape {
+            height: parent.height
+            width: container.splitterGrabMargin * 2
+            x: -container.splitterGrabMargin
+            cursorShape: Qt.SizeHorCursor
+        }
+
         DragHandler {
             id: dragHandler
 
@@ -96,9 +103,9 @@ Container {
             xAxis.minimum: splitter.minimumWidth - 1
             xAxis.maximum: splitter.maximumWidth
             margin: container.splitterGrabMargin
-            dragThreshold: 0
+            //dragThreshold: 0
             grabPermissions: PointerHandler.CanTakeOverFromAnything | PointerHandler.ApprovesTakeOverByHandlersOfSameType
-            cursorShape: Qt.SizeHorCursor
+            //cursorShape: Qt.SizeHorCursor
             onActiveChanged: {
                 if (!active)
                     splitter.parent.preferredWidth = splitter.x;
@@ -107,9 +114,10 @@ Container {
         }
 
         HoverHandler {
+            //cursorShape: Qt.SizeHorCursor
+
             enabled: !container.singlePageMode
             margin: container.splitterGrabMargin
-            cursorShape: Qt.SizeHorCursor
         }
 
     }

resources/qml/components/AdaptiveLayoutElement.qml

@@ -2,8 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
-import QtQuick 2.15
-import QtQuick.Controls 2.15
+import QtQuick 2.12
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.15
 
 Item {

resources/qml/dialogs/InputDialog.qml

@@ -3,8 +3,8 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 import ".."
-import QtQuick 2.13
-import QtQuick.Controls 2.13
+import QtQuick 2.12
+import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.3
 import im.nheko 1.0