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// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
import Quickshell
import Quickshell.Wayland
import QtQuick
Scope {
id: root
property bool open: false
property string monitor: "DP-1"
readonly property var screenObj:
Quickshell.screens.find(s => s.name === root.monitor) ?? Quickshell.screens[0]
function toggle() { root.open = !root.open; }
function close() { root.open = false; }
// Hyprland.toplevels reads empty until it is asked, and a window opened
// since the last showing would otherwise be missing from the grid.
onOpenChanged: if (open) Windows.refresh();
// A config with no visible window exits, reporting nothing. This 1x1
// click-through window is what holds the shell open while the overlay
// is hidden, which is almost always.
PanelWindow {
anchors { top: true; left: true }
implicitWidth: 1
implicitHeight: 1
color: "transparent"
exclusionMode: ExclusionMode.Ignore
mask: Region {}
WlrLayershell.keyboardFocus: WlrKeyboardFocus.None
}
LazyLoader {
active: root.open
PanelWindow {
id: win
screen: root.screenObj
anchors { top: true; left: true; right: true; bottom: true }
color: "transparent"
exclusionMode: ExclusionMode.Ignore
WlrLayershell.layer: WlrLayer.Overlay
WlrLayershell.namespace: "window-switcher"
WlrLayershell.keyboardFocus: WlrKeyboardFocus.Exclusive
// Keys reach a focused item, not a window: Keys.onEscapePressed on
// the PanelWindow above never fires. This item is what listens.
Item {
id: keyHandler
anchors.fill: parent
focus: true
// The LazyLoader destroys the overlay when it closes and
// builds a new one on the next opening, verified by a build
// counter: two openings, two constructions. So this starts at
// 0 every time on its own, and there is nothing to reset. A
// Component.onCompleted assigning 0 here would be a no-op.
property int selectedIndex: 0
function commit() {
const list = Windows.windows;
if (selectedIndex >= 0 && selectedIndex < list.length) {
Windows.focus(list[selectedIndex]);
root.close();
}
}
function move(delta) {
const n = Windows.windows.length;
if (n === 0) return;
selectedIndex = (selectedIndex + delta + n) % n;
}
Keys.onEscapePressed: root.close()
Keys.onReturnPressed: commit()
Keys.onEnterPressed: commit()
Keys.onLeftPressed: move(-1)
Keys.onRightPressed: move(1)
Keys.onUpPressed: move(-grid.columns)
Keys.onDownPressed: move(grid.columns)
Keys.onTabPressed: move(1)
Keys.onBacktabPressed: move(-1)
Rectangle {
anchors.fill: parent
color: Qt.rgba(Theme.base.r, Theme.base.g, Theme.base.b, 0.82)
MouseArea {
anchors.fill: parent
onClicked: root.close()
}
// Nothing to switch to. A full-screen dim with nothing in
// it reads as a hang, so it says so instead.
Column {
anchors.centerIn: parent
spacing: 14
visible: Windows.windows.length === 0
Text {
anchors.horizontalCenter: parent.horizontalCenter
text: "Nothing here but hopes and dreams..."
color: Theme.text
font.family: Theme.fontFamily
font.pixelSize: 26
}
Text {
anchors.horizontalCenter: parent.horizontalCenter
text: "go create something beautiful!"
color: Theme.overlay
font.family: Theme.fontFamily
font.pixelSize: 32
}
}
Grid {
id: grid
anchors.centerIn: parent
visible: Windows.windows.length > 0
readonly property int count: Windows.windows.length
readonly property int gap: 30
readonly property int maxCardWidth: 640
// Columns are the window count capped at six, so one
// card sits dead centre and two straddle the middle.
columns: Math.max(1, Math.min(count, 6))
// Cards grow to fill their row, up to a ceiling.
// Without the ceiling a lone preview becomes a
// full-screen mirror of the window it stands for.
readonly property int rows: Math.ceil(count / columns)
// The three text lines and the spacing above them,
// which the box height has to leave room for.
readonly property int textHeight: 54
// Clamped by the height as well as the width. Without
// the second term a busy desktop pushes rows off the
// top and bottom, and a centred Grid has no way to
// scroll to them, so the cards shrink instead.
readonly property int cardWidth: Math.min(
maxCardWidth,
Math.floor((parent.width * 0.92 - (columns - 1) * gap) / columns),
Math.floor(((parent.height * 0.92 - (rows - 1) * gap) / rows - textHeight) * 16 / 10))
spacing: gap
Repeater {
model: Windows.windows
WindowCard {
required property int index
required property var modelData
toplevel: modelData
cardWidth: grid.cardWidth
selected: index === keyHandler.selectedIndex
onActivated: {
keyHandler.selectedIndex = index;
keyHandler.commit();
}
// Closing is a side errand, so the overlay
// stays open: a dismissal would mean reopening
// to close a second window. The card goes when
// Hyprland says it went.
onCloseRequested: Windows.closeWindow(modelData)
}
}
}
}
}
}
}
}
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