New InputMethod api for Views.

views/widget/widget_gtk.cc

 // Copyright (c) 2011 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 "views/widget/widget_gtk.h"
 
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
 #include <X11/extensions/shape.h>
 
@@ skipping 1567 matching lines @@
   GList *window_list = gtk_window_list_toplevels();
   for (GList* element = window_list; element; element = g_list_next(element)) {
     NativeWidget* native_widget =
         NativeWidget::GetNativeWidgetForNativeWindow(GTK_WINDOW(element->data));
     if (native_widget)
       native_widget->GetWidget()->LocaleChanged();
   }
   g_list_free(window_list);
 }
 
+// static
+bool Widget::ConvertRect(const Widget* source,
+                         const Widget* target,
+                         gfx::Rect* rect) {
+  DCHECK(source);
+  DCHECK(target);
+  DCHECK(rect);
+
+  GtkWidget* source_widget = source->GetNativeView();
+  GtkWidget* target_widget = target->GetNativeView();
+  if (source_widget == target_widget)
+    return true;
+
+  if (!source_widget || !target_widget)
+    return false;
+
+  GdkRectangle gdk_rect = rect->ToGdkRectangle();
+  if (gtk_widget_translate_coordinates(source_widget, target_widget,
+                                       gdk_rect.x, gdk_rect.y,
+                                       &gdk_rect.x, &gdk_rect.y)) {
+    *rect = gdk_rect;
+    return true;
+  }
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // NativeWidget, public:
 
 // static
 NativeWidget* NativeWidget::GetNativeWidgetForNativeView(
     gfx::NativeView native_view) {
   if (!native_view)
     return NULL;
   return reinterpret_cast<WidgetGtk*>(
       g_object_get_data(G_OBJECT(native_view), kNativeWidgetKey));
@@ skipping 36 matching lines @@
 
   NativeWidget* native_widget = GetNativeWidgetForNativeView(native_view);
   if (native_widget)
     children->insert(native_widget);
   gtk_container_foreach(GTK_CONTAINER(native_view),
                         EnumerateChildWidgetsForNativeWidgets,
                         reinterpret_cast<gpointer>(children));
 }
 
 }  // namespace views