Preview task-group selections until Meta is released

2026-09-11 10:59:54 +00:00
parent ccd0161398
commit 0ec628e786
18 changed files with 867 additions and 21 deletions
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: MIT
+
+#include "taskbargeometry.h"
+
+#include <QDBusConnection>
+#include <QDBusInterface>
+#include <QDBusReply>
+#include <QDebug>
+
+namespace {
+constexpr auto scriptName = "se.ajpanton.task-group-shortcuts.geometry";
+constexpr auto objectPath = "/TaskbarGeometry";
+}
+
+TaskbarGeometry::TaskbarGeometry(QObject *parent)
+    : QObject(parent)
+{
+    auto bus = QDBusConnection::sessionBus();
+    if (!bus.registerObject(QString::fromLatin1(objectPath), this, QDBusConnection::ExportScriptableContents)) {
+        qFatal("Cannot register the taskbar geometry interface");
+    }
+    QDBusInterface scripting(QStringLiteral("org.kde.KWin"), QStringLiteral("/Scripting"),
+                             QStringLiteral("org.kde.kwin.Scripting"));
+    // Replace any copy left behind by an earlier process that was terminated.
+    scripting.call(QStringLiteral("unloadScript"), QString::fromLatin1(scriptName));
+    const QDBusReply<int> loaded = scripting.call(QStringLiteral("loadDeclarativeScript"),
+        QStringLiteral(GEOMETRY_SCRIPT_PATH), QString::fromLatin1(scriptName));
+    if (!loaded.isValid() || loaded.value() < 0) {
+        qWarning() << "Cannot load taskbar geometry script:" << loaded.error().message();
+        return;
+    }
+    m_loaded = true;
+    QDBusInterface script(QStringLiteral("org.kde.KWin"),
+        QStringLiteral("/Scripting/Script%1").arg(loaded.value()), QStringLiteral("org.kde.kwin.Script"));
+    const QDBusReply<void> started = script.call(QStringLiteral("run"));
+    if (!started.isValid()) {
+        qWarning() << "Cannot start taskbar geometry script:" << started.error().message();
+        m_loaded = false;
+    }
+}
+
+TaskbarGeometry::~TaskbarGeometry()
+{
+    QDBusInterface scripting(QStringLiteral("org.kde.KWin"), QStringLiteral("/Scripting"),
+                             QStringLiteral("org.kde.kwin.Scripting"));
+    scripting.call(QStringLiteral("unloadScript"), QString::fromLatin1(scriptName));
+    QDBusConnection::sessionBus().unregisterObject(QString::fromLatin1(objectPath));
+}
+
+void TaskbarGeometry::request(const QString &uuid)
+{
+    ++m_serial;
+    m_uuid = uuid;
+    if (m_ready) {
+        Q_EMIT lookup(m_serial, uuid);
+    } else if (!m_loaded) {
+        Q_EMIT received({});
+    }
+}
+
+void TaskbarGeometry::cancel()
+{
+    ++m_serial;
+    m_uuid.clear();
+}
+
+void TaskbarGeometry::bridgeReady()
+{
+    m_ready = true;
+    if (!m_uuid.isEmpty()) {
+        Q_EMIT lookup(m_serial, m_uuid);
+    }
+}
+
+void TaskbarGeometry::complete(int serial, double x, double y, double width, double height)
+{
+    if (serial == m_serial && !m_uuid.isEmpty()) {
+        Q_EMIT received(QRectF(x, y, width, height));
+    }
+}