Fix unwanted window resizing. This resolves issue TDE/tde#57.

Some applications (like xfce4-terminal) try to manage their sizes by requesting the window manager a different size. The WM responds by resizing the window and the application tries once again to adjust its own size. This can lead to a repeated loop of request-resize which results in the application window to either shrink to the minimum allowed size or expand to the display size.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit a9bd5b50e9)

twin/client.cpp

@@ -128,6 +128,9 @@ Client::Client( Workspace *ws )
     autoRaiseTimer = 0;
     shadeHoverTimer = 0;
 
+    configureRequestTimer = new TQTimer(this);
+    connect(configureRequestTimer, TQT_SIGNAL(timeout()), TQT_SLOT(configureRequestTimeout()));
+
     shadowDelayTimer = new TQTimer(this);
     opacityCache = &activeOpacityCache;
     shadowAfterClient = NULL;
@@ -969,6 +972,12 @@ void Client::setShade( ShadeMode mode )
     updateWindowRules();
     }
 
+void Client::configureRequestTimeout()
+    {
+    moveResizeMode = false;
+    sendSyntheticConfigureNotify();
+    }
+
 void Client::shadeHover()
     {
     setShade( ShadeHover );

twin/client.h

@@ -339,6 +339,7 @@ class Client : public TQObject, public KDecorationDefines
     private slots:
         void autoRaise();
         void shadeHover();
+        void configureRequestTimeout();
         void shortcutActivated();
 	void updateOpacityCache();
 
@@ -558,6 +559,7 @@ class Client : public TQObject, public KDecorationDefines
         WinInfo* info;
         TQTimer* autoRaiseTimer;
         TQTimer* shadeHoverTimer;
+        TQTimer* configureRequestTimer;
         Colormap cmap;
         TQCString resource_name;
         TQCString resource_class;

twin/events.cpp

@@ -818,7 +818,7 @@ void Client::configureRequestEvent( XConfigureRequestEvent* e )
         restackWindow( e->above, e->detail, NET::FromApplication, userTime(), false );
 
     // TODO sending a synthetic configure notify always is fine, even in cases where
-    // the ICCCM doesn't require this - it can be though of as 'the WM decided to move
+    // the ICCCM doesn't require this - it can be thought of as 'the WM decided to move
     // the window later'. The client should not cause that many configure request,
     // so this should not have any significant impact. With user moving/resizing
     // the it should be optimized though (see also Client::setGeometry()/plainResize()/move()).

twin/geometry.cpp

@@ -1451,6 +1451,8 @@ const TQPoint Client::calculateGravitation( bool invert, int gravity ) const
 
 void Client::configureRequest( int value_mask, int rx, int ry, int rw, int rh, int gravity, bool from_tool )
     {
+    moveResizeMode = true;
+    configureRequestTimer->start(100, true);
     if( gravity == 0 ) // default (nonsense) value for the argument
         gravity = xSizeHint.win_gravity;
     if( value_mask & ( CWX | CWY ))