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import ".."
import qs.services
import qs.config
import QtQuick
import QtQuick.Templates
ScrollBar {
id: root
required property Flickable flickable
property bool shouldBeActive
property real nonAnimPosition
property bool animating
onHoveredChanged: {
if (hovered)
shouldBeActive = true;
else
shouldBeActive = flickable.moving;
}
property bool _updatingFromFlickable: false
property bool _updatingFromUser: false
// Sync nonAnimPosition with Qt's automatic position binding
onPositionChanged: {
if (_updatingFromUser) {
_updatingFromUser = false;
return;
}
if (position === nonAnimPosition) {
animating = false;
return;
}
if (!animating && !_updatingFromFlickable && !fullMouse.pressed) {
nonAnimPosition = position;
}
}
// Sync nonAnimPosition with flickable when not animating
Connections {
target: flickable
function onContentYChanged() {
if (!animating && !fullMouse.pressed) {
_updatingFromFlickable = true;
const contentHeight = flickable.contentHeight;
const height = flickable.height;
if (contentHeight > height) {
nonAnimPosition = Math.max(0, Math.min(1, flickable.contentY / (contentHeight - height)));
} else {
nonAnimPosition = 0;
}
_updatingFromFlickable = false;
}
}
}
Component.onCompleted: {
if (flickable) {
const contentHeight = flickable.contentHeight;
const height = flickable.height;
if (contentHeight > height) {
nonAnimPosition = Math.max(0, Math.min(1, flickable.contentY / (contentHeight - height)));
}
}
}
implicitWidth: Appearance.padding.small
contentItem: StyledRect {
anchors.left: parent.left
anchors.right: parent.right
opacity: {
if (root.size === 1)
return 0;
if (fullMouse.pressed)
return 1;
if (mouse.containsMouse)
return 0.8;
if (root.policy === ScrollBar.AlwaysOn || root.shouldBeActive)
return 0.6;
return 0;
}
radius: Appearance.rounding.full
color: Colours.palette.m3secondary
MouseArea {
id: mouse
anchors.fill: parent
cursorShape: Qt.PointingHandCursor
hoverEnabled: true
acceptedButtons: Qt.NoButton
}
Behavior on opacity {
Anim {}
}
}
Connections {
target: root.flickable
function onMovingChanged(): void {
if (root.flickable.moving)
root.shouldBeActive = true;
else
hideDelay.restart();
}
}
Timer {
id: hideDelay
interval: 600
onTriggered: root.shouldBeActive = root.flickable.moving || root.hovered
}
CustomMouseArea {
id: fullMouse
anchors.fill: parent
preventStealing: true
onPressed: event => {
root.animating = true;
root._updatingFromUser = true;
const newPos = Math.max(0, Math.min(1 - root.size, event.y / root.height - root.size / 2));
root.nonAnimPosition = newPos;
// Update flickable position
// Map scrollbar position [0, 1-size] to contentY [0, maxContentY]
if (root.flickable) {
const contentHeight = root.flickable.contentHeight;
const height = root.flickable.height;
if (contentHeight > height) {
const maxContentY = contentHeight - height;
const maxPos = 1 - root.size;
const contentY = maxPos > 0 ? (newPos / maxPos) * maxContentY : 0;
root.flickable.contentY = Math.max(0, Math.min(maxContentY, contentY));
}
}
}
onPositionChanged: event => {
root._updatingFromUser = true;
const newPos = Math.max(0, Math.min(1 - root.size, event.y / root.height - root.size / 2));
root.nonAnimPosition = newPos;
// Update flickable position
// Map scrollbar position [0, 1-size] to contentY [0, maxContentY]
if (root.flickable) {
const contentHeight = root.flickable.contentHeight;
const height = root.flickable.height;
if (contentHeight > height) {
const maxContentY = contentHeight - height;
const maxPos = 1 - root.size;
const contentY = maxPos > 0 ? (newPos / maxPos) * maxContentY : 0;
root.flickable.contentY = Math.max(0, Math.min(maxContentY, contentY));
}
}
}
function onWheel(event: WheelEvent): void {
root.animating = true;
root._updatingFromUser = true;
let newPos = root.nonAnimPosition;
if (event.angleDelta.y > 0)
newPos = Math.max(0, root.nonAnimPosition - 0.1);
else if (event.angleDelta.y < 0)
newPos = Math.min(1 - root.size, root.nonAnimPosition + 0.1);
root.nonAnimPosition = newPos;
// Update flickable position
// Map scrollbar position [0, 1-size] to contentY [0, maxContentY]
if (root.flickable) {
const contentHeight = root.flickable.contentHeight;
const height = root.flickable.height;
if (contentHeight > height) {
const maxContentY = contentHeight - height;
const maxPos = 1 - root.size;
const contentY = maxPos > 0 ? (newPos / maxPos) * maxContentY : 0;
root.flickable.contentY = Math.max(0, Math.min(maxContentY, contentY));
}
}
}
}
Behavior on position {
enabled: !fullMouse.pressed
Anim {}
}
}
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