Properly clean up after disconnecting

[quassel.git] / src / uisupport / graphicalui.cpp

diff --git a/src/uisupport/graphicalui.cpp b/src/uisupport/graphicalui.cpp
index 40921cf..c2422b3 100644 (file)
--- a/src/uisupport/graphicalui.cpp
+++ b/src/uisupport/graphicalui.cpp
@@ -1,7 +1,10 @@
 /***************************************************************************
- *   Copyright (C) 2005-09 by the Quassel Project                          *
+ *   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     *
@@ -22,6 +25,7 @@
 
 #include "actioncollection.h"
 #include "contextmenuactionprovider.h"
+#include "toolbaractionprovider.h"
 
 #ifdef Q_WS_X11
 #  include <QX11Info>
@@ -31,6 +35,7 @@
 #  include <KWindowSystem>
 #endif
 
+GraphicalUi *GraphicalUi::_instance = 0;
 QWidget *GraphicalUi::_mainWidget = 0;
 QHash<QString, ActionCollection *> GraphicalUi::_actionCollections;
 ContextMenuActionProvider *GraphicalUi::_contextMenuActionProvider = 0;
@@ -38,9 +43,19 @@ ToolBarActionProvider *GraphicalUi::_toolBarActionProvider = 0;
 UiStyle *GraphicalUi::_uiStyle = 0;
 bool GraphicalUi::_onAllDesktops = false;
 
-GraphicalUi::GraphicalUi(QObject *parent) : AbstractUi(parent)
-{
+GraphicalUi::GraphicalUi(QObject *parent) : AbstractUi(parent) {
+  Q_ASSERT(!_instance);
+  _instance = this;
+
+#ifdef Q_WS_WIN
+  _dwTickCount = 0;
+#endif
+}
 
+void GraphicalUi::init() {
+#ifdef Q_WS_WIN
+  mainWidget()->installEventFilter(this);
+#endif
 }
 
 ActionCollection *GraphicalUi::actionCollection(const QString &category) {
@@ -69,6 +84,126 @@ void GraphicalUi::setUiStyle(UiStyle *style) {
   _uiStyle = style;
 }
 
+void GraphicalUi::disconnectedFromCore() {
+  _contextMenuActionProvider->disconnectedFromCore();
+  _toolBarActionProvider->disconnectedFromCore();
+  AbstractUi::disconnectedFromCore();
+}
+
+bool GraphicalUi::eventFilter(QObject *obj, QEvent *event) {
+#ifdef Q_WS_WIN
+  if(obj == mainWidget() && event->type() == QEvent::ActivationChange) {
+    _dwTickCount = GetTickCount();
+  }
+#endif
+  return AbstractUi::eventFilter(obj, event);
+}
+
+// Code taken from KStatusNotifierItem for handling minimize/restore
+
+bool GraphicalUi::checkMainWidgetVisibility(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
+    if(perform)
+      minimizeRestore(false);
+    return false;
+  } else {
+    if(perform)
+      minimizeRestore(true);
+    return true;
+  }
+
+#elif defined(HAVE_KDE) && defined(Q_WS_X11)
+  KWindowInfo info1 = KWindowSystem::windowInfo(mainWidget()->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 == mainWidget()->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(mainWidget()->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(mainWidget()->winId());
+        KWindowSystem::activateWindow(mainWidget()->winId());
+      }
+      return true;
+    }
+
+    //not on current desktop?
+    if(!info1.isOnCurrentDesktop()) {
+      if(perform)
+        KWindowSystem::activateWindow(mainWidget()->winId());
+      return true;
+    }
+
+    if(perform)
+      minimizeRestore(false); // hide
+    return false;
+  }
+#else
+
+  if(!mainWidget()->isVisible() || mainWidget()->isMinimized()) {
+    if(perform)
+      minimizeRestore(true);
+    return true;
+  } else {
+    if(perform)
+      minimizeRestore(false);
+    return false;
+  }
+
+#endif
+
+  return true;
+}
+
+bool GraphicalUi::isMainWidgetVisible() {
+  return !instance()->checkMainWidgetVisibility(false);
+}
+
+void GraphicalUi::minimizeRestore(bool show) {
+  if(show)
+    activateMainWidget();
+  else
+    hideMainWidget();
+}
+
 void GraphicalUi::activateMainWidget() {
 #ifdef HAVE_KDE
 #  ifdef Q_WS_X11
@@ -118,5 +253,10 @@ void GraphicalUi::hideMainWidget() {
   _onAllDesktops = info.onAllDesktops();
 #endif
 
-  mainWidget()->hide();
+  if(instance()->isHidingMainWidgetAllowed())
+    mainWidget()->hide();
+}
+
+void GraphicalUi::toggleMainWidget() {
+  instance()->checkMainWidgetVisibility(true);
 }