Implement DraggedTabGtk, the object that handles rendering either a dragged t...

chrome/common/gtk_util.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/common/gtk_util.h"
 
 #include <gtk/gtk.h>
 
 #include "base/linux_util.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ skipping 36 matching lines @@
   gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), top, bottom, left, right);
   gtk_container_add(GTK_CONTAINER(alignment), child);
   gtk_container_add(GTK_CONTAINER(ebox), alignment);
   return ebox;
 }
 
 void RemoveAllChildren(GtkWidget* container) {
   gtk_container_foreach(GTK_CONTAINER(container), RemoveWidget, container);
 }
 
+gfx::Point GetWidgetScreenPosition(GtkWidget* widget) {
+  int x = 0, y = 0;
+
+  GtkWidget* parent = widget;
+  while (parent) {
+    if (GTK_IS_WINDOW(parent)) {
+      int window_x, window_y;
+      gtk_window_get_position(GTK_WINDOW(parent), &window_x, &window_y);
+      x += window_x;
+      y += window_y;
+      return gfx::Point(x, y);
+    }
+
+    x += parent->allocation.x;
+    y += parent->allocation.y;
+    parent = gtk_widget_get_parent(parent);
+  }
+
+  return gfx::Point(x, y);
+}
+
+gfx::Rect GetWidgetScreenBounds(GtkWidget* widget) {
+  gfx::Point position = GetWidgetScreenPosition(widget);
+  return gfx::Rect(position.x(), position.y(),
+                   widget->allocation.width, widget->allocation.height);
+}
+
 }  // namespace gtk_util