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Reserve screen space for the dock in convergence mode

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Add an invisible layer-shell surface with an exclusive zone matching
the dock height.  KWin uses this to shrink MaximizeArea so maximized
and tiled windows no longer overlap the dock.

The previous approach of tweaking the nav-panel PanelView was a dead
end: PanelView resets its own surface properties on reconfiguration
and Wayland offers no way to set struts from a KWin script.  A
separate surface at LayerBottom with exclusionZone is the intended
protocol mechanism.
This commit is contained in:
Marco Allegretti 2026-04-09 19:47:38 +02:00
parent 618a920821
commit 98733bb654
1 changed files with 25 additions and 3 deletions
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28
containments/taskpanel/qml/main.qml
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@ -86,9 +86,6 @@ ContainmentItem {
root.panel.offset = intendedWindowOffset;
root.panel.thickness = navigationPanelHeight;
root.panel.location = intendedWindowLocation;
// In convergence mode the navigation panel is invisible (its functions
// live in the dock), so auto-hide the panel window to avoid reserving
// empty screen space at the bottom edge.
root.panel.visibilityMode = (ShellSettings.Settings.autoHidePanelsEnabled || ShellSettings.Settings.convergenceModeEnabled) ? 3 : 0;
MobileShell.ShellUtil.setWindowLayer(root.panel, LayerShell.Window.LayerOverlay);
root.updateTouchArea();
@ -135,10 +132,35 @@ ContainmentItem {
function onAutoHidePanelsEnabledChanged() {
root.setWindowProperties();
}
function onConvergenceModeEnabledChanged() {
root.setWindowProperties();
}
}
Component.onCompleted: setWindowProperties();
// Invisible layer-shell surface that reserves screen space for the dock
// in convergence mode. Sits at LayerBottom (below windows, above the
// desktop) with an exclusive zone equal to the dock height so that KWin
// shrinks MaximizeArea accordingly. Input-transparent so clicks fall
// through to the homescreen dock underneath.
Window {
id: dockSpaceReserver
visible: ShellSettings.Settings.convergenceModeEnabled
color: "transparent"
flags: Qt.FramelessWindowHint | Qt.WindowTransparentForInput
// height is set by layer-shell anchoring; provide a fallback.
height: Kirigami.Units.gridUnit * 3
width: 1 // layer-shell stretches it via AnchorLeft|AnchorRight
LayerShell.Window.scope: "dock-space"
LayerShell.Window.layer: LayerShell.Window.LayerBottom
LayerShell.Window.anchors: LayerShell.Window.AnchorBottom | LayerShell.Window.AnchorLeft | LayerShell.Window.AnchorRight
LayerShell.Window.exclusionZone: Kirigami.Units.gridUnit * 3
LayerShell.Window.keyboardInteractivity: LayerShell.Window.KeyboardInteractivityNone
}
// only opaque if there are no maximized windows on this screen
readonly property bool showingStartupFeedback: MobileShellState.ShellDBusObject.startupFeedbackModel.activeWindowIsStartupFeedback && startupFeedbackColorAnimation.visible && windowMaximizedTracker.windowCount === 1
readonly property bool opaqueBar: {