Fix text selection start drag delay

src/qml/Base/HSelectableLabel.qml

@@ -131,6 +131,12 @@ TextEdit {
         }
     }
 
+    PointHandler {
+        onActiveChanged:
+            active ? container.dragStarted() : container.dragStopped()
+        onPointChanged: container.dragPointChanged(point)
+    }
+
     MouseArea {
         anchors.fill: label
         acceptedButtons: Qt.NoButton

src/qml/Base/HSelectableLabelContainer.qml

@@ -3,11 +3,13 @@ import "../utils.js" as Utils
 
 FocusScope {
     signal deselectAll()
+    signal dragStarted()
+    signal dragStopped()
+    signal dragPointChanged(var eventPoint)
 
 
     property bool reversed: false
 
-    readonly property bool dragging: pointHandler.active || dragHandler.active
     property bool selecting: false
     property real selectionStart: -1
     property real selectionEnd: -1
@@ -36,8 +38,22 @@ FocusScope {
         return toCopy.join("").trim()
     }
 
-    readonly property alias dragPoint: dragHandler.centroid
-    readonly property alias dragPosition: dragHandler.centroid.position
+
+    onDragStarted: {
+        draggedItem.Drag.active = true
+    }
+    onDragStopped: {
+        draggedItem.Drag.drop()
+        draggedItem.Drag.active = false
+        selecting               = false
+    }
+    onDragPointChanged: {
+        let pos = mapFromItem(
+            mainUI, eventPoint.scenePosition.x, eventPoint.scenePosition.y,
+        )
+        draggedItem.x = pos.x
+        draggedItem.y = pos.y
+    }
 
 
     function clearSelection() {
@@ -50,28 +66,21 @@ FocusScope {
     }
 
 
-    Item { id: dragCursor }
-
-    DragHandler {
-        id: dragHandler
-        target: dragCursor
-        onActiveChanged: {
-            if (active) {
-                target.Drag.active = true
-            } else {
-                target.Drag.drop()
-                target.Drag.active = false
-                selecting          = false
-            }
-        }
-    }
+    // PointHandler and TapHandler won't activate if the press occurs inside
+    // a label child, so we need a Point/TapHandler inside them too.
 
     PointHandler {
+        // We don't use a DragHandler because they have an unchangable minimum
+        // drag distance before they activate.
         id: pointHandler
+        onActiveChanged: active ? dragStarted() : dragStopped()
+        onPointChanged: dragPointChanged(point)
     }
 
     TapHandler {
         acceptedButtons: Qt.LeftButton
         onTapped: clearSelection()
     }
+
+    Item { id: draggedItem }
 }

src/qml/Chat/Timeline/EventList.qml

@@ -13,23 +13,23 @@ Rectangle {
         anchors.fill: parent
         reversed: eventList.verticalLayoutDirection == ListView.BottomToTop
 
-        onDragPositionChanged: {
-            let left = dragPoint.pressedButtons & Qt.LeftButton
-            let vel  = dragPoint.velocity.y
+        DragHandler {
+            target: null
+            onActiveChanged: if (! active) dragFlicker.speed = 0
+            onCentroidChanged: {
+                let left  = centroid.pressedButtons & Qt.LeftButton
+                let vel   = centroid.velocity.y
+                let pos   = centroid.position.y
+                let dist  = Math.min(selectableLabelContainer.height / 4, 50)
+                let boost = 20 * (pos < dist ?  -pos : -(height - pos))
 
-            let boost = 20 * (
-                dragPosition.y < 50 ?
-                -dragPosition.y : -(height - dragPosition.y)
-            )
-
-            dragFlicker.speed =
-                dragPosition.x == 0 && dragPosition.y == 0  ? 0 :
-                left && vel && dragPosition.y < 50          ? 1000 + boost:
-                left && vel && dragPosition.y > height - 50 ? -1000 + -boost :
-                0
+                dragFlicker.speed =
+                    left && vel && pos < dist          ? 1000 + boost :
+                    left && vel && pos > height - dist ? -1000 + -boost :
+                    0
+            }
         }
 
-
         Timer {
             id: dragFlicker
             interval: 100