Improve systray activation behavior; more refactoring

[quassel.git] / src / qtui / systemtray.cpp

diff --git a/src/qtui/systemtray.cpp b/src/qtui/systemtray.cpp
index 9944823..27aeb08 100644 (file)
--- a/src/qtui/systemtray.cpp
+++ b/src/qtui/systemtray.cpp
@@ -2,6 +2,9 @@
  *   Copyright (C) 2005-2010 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
+ *   This contains code from KStatusNotifierItem, part of the KDE libs     *
+ *   Copyright (C) 2009 Marco Martin <notmart@gmail.com>                   *
+ *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
@@ -25,9 +28,13 @@
 #include "client.h"
 #include "iconloader.h"
 #include "qtui.h"
-#include "qtuisettings.h"
 
-SystemTray::SystemTray(QObject *parent)
+#ifdef HAVE_KDE
+#  include <KWindowInfo>
+#  include <KWindowSystem>
+#endif
+
+SystemTray::SystemTray(QWidget *parent)
 : QObject(parent),
   _mode(Invalid),
   _state(Passive),
@@ -35,15 +42,31 @@ SystemTray::SystemTray(QObject *parent)
   _passiveIcon(DesktopIcon("quassel_inactive")),
   _activeIcon(DesktopIcon("quassel")),
   _needsAttentionIcon(DesktopIcon("quassel_message")),
-  _trayMenu(0)
+  _trayMenu(0),
+  _associatedWidget(parent)
 {
+  Q_ASSERT(parent);
+
+#ifdef Q_WS_WIN
+  _dwTickCount = 0;
+  associatedWidget()->installEventFilter(this);
+#endif
+
   qApp->installEventFilter(this);
 }
 
 SystemTray::~SystemTray() {
+#ifdef Q_WS_WIN
+  associatedWidget()->removeEventFilter(this);
+#endif
+
   _trayMenu->deleteLater();
 }
 
+QWidget *SystemTray::associatedWidget() const {
+  return _associatedWidget;
+}
+
 void SystemTray::setTrayMenu(QMenu *menu) {
   if(menu)
     _trayMenu = menu;
@@ -59,7 +82,6 @@ void SystemTray::setTrayMenu(QMenu *menu) {
   _trayMenu->addSeparator();
   _trayMenu->addAction(coll->action("Quit"));
 #endif /* HAVE_KDE */
-
 }
 
 void SystemTray::setMode(Mode mode_) {
@@ -119,10 +141,133 @@ void SystemTray::showMessage(const QString &title, const QString &message, Messa
   Q_UNUSED(millisecondsTimeoutHint)
 }
 
+void SystemTray::activate(SystemTray::ActivationReason reason) {
+
+  emit activated(reason);
+
+  if(reason == Trigger && !isActivationInhibited()) {
+    toggleMainWidget();
+  }
+}
+
 bool SystemTray::eventFilter(QObject *obj, QEvent *event) {
-  Q_UNUSED(obj);
-  if(event->type() == QEvent::MouseButtonRelease) {
+  if(event->type() == QEvent::MouseMove || event->type() == QEvent::MouseButtonRelease) {
     _inhibitActivation = false;
   }
-  return false;
+#ifdef Q_WS_WIN
+  if(obj == associatedWidget() && event->type() == QEvent::ActivationChange) {
+    _dwTickCount = GetTickCount();
+  }
+#endif
+  return QObject::eventFilter(obj, event);
+}
+
+// Code taken from KStatusNotifierItem for handling minimize/restore
+
+bool SystemTray::checkVisibility(bool perform) {
+#ifdef Q_WS_WIN
+  // the problem is that we lose focus when the systray icon is activated
+  // and we don't know the former active window
+  // therefore we watch for activation event and use our stopwatch :)
+  if(GetTickCount() - _dwTickCount < 300) {
+    // we were active in the last 300ms -> hide it
+    minimizeRestore(false);
+  } else {
+    minimizeRestore(true);
+  }
+
+#elif defined(HAVE_KDE) && defined(Q_WS_X11)
+  KWindowInfo info1 = KWindowSystem::windowInfo(associatedWidget()->winId(), NET::XAWMState | NET::WMState | NET::WMDesktop);
+  // mapped = visible (but possibly obscured)
+  bool mapped = (info1.mappingState() == NET::Visible) && !info1.isMinimized();
+
+  //    - not mapped -> show, raise, focus
+  //    - mapped
+  //        - obscured -> raise, focus
+  //        - not obscured -> hide
+  //info1.mappingState() != NET::Visible -> window on another desktop?
+  if(!mapped) {
+    if(perform)
+      minimizeRestore(true);
+    return true;
+
+  } else {
+    QListIterator< WId > it (KWindowSystem::stackingOrder());
+    it.toBack();
+    while(it.hasPrevious()) {
+      WId id = it.previous();
+      if(id == associatedWidget()->winId())
+        break;
+
+      KWindowInfo info2 = KWindowSystem::windowInfo(id, NET::WMDesktop | NET::WMGeometry | NET::XAWMState | NET::WMState | NET::WMWindowType);
+
+      if(info2.mappingState() != NET::Visible)
+        continue; // not visible on current desktop -> ignore
+
+      if(!info2.geometry().intersects(associatedWidget()->geometry()))
+        continue; // not obscuring the window -> ignore
+
+      if(!info1.hasState(NET::KeepAbove) && info2.hasState(NET::KeepAbove))
+        continue; // obscured by window kept above -> ignore
+
+      NET::WindowType type = info2.windowType(NET::NormalMask | NET::DesktopMask
+                                              | NET::DockMask | NET::ToolbarMask | NET::MenuMask | NET::DialogMask
+                                              | NET::OverrideMask | NET::TopMenuMask | NET::UtilityMask | NET::SplashMask);
+
+      if(type == NET::Dock || type == NET::TopMenu)
+        continue; // obscured by dock or topmenu -> ignore
+
+      if(perform) {
+        KWindowSystem::raiseWindow(associatedWidget()->winId());
+        KWindowSystem::activateWindow(associatedWidget()->winId());
+      }
+      return true;
+    }
+
+    //not on current desktop?
+    if(!info1.isOnCurrentDesktop()) {
+      if(perform)
+        KWindowSystem::activateWindow(associatedWidget()->winId());
+      return true;
+    }
+
+    if(perform)
+      minimizeRestore(false); // hide
+    return false;
+  }
+#else
+
+  if(!associatedWidget()->isVisible() || associatedWidget()->isMinimized()) {
+    if(perform)
+      minimizeRestore(true);
+    return true;
+  } else {
+    if(perform)
+      minimizeRestore(false);
+    return false;
+  }
+
+#endif
+
+  return true;
+}
+
+void SystemTray::minimizeRestore(bool show) {
+  if(show)
+    GraphicalUi::activateMainWidget();
+  else {
+    if(isSystemTrayAvailable()) {
+      if(!isVisible())
+        setVisible();
+      GraphicalUi::hideMainWidget();
+    }
+  }
+}
+
+void SystemTray::hideMainWidget() {
+  minimizeRestore(false);
+}
+
+void SystemTray::toggleMainWidget() {
+  checkVisibility(true);
 }