linux: OOP windowed plugins

webkit/glue/plugins/gtk_plugin_container_host.h

+// 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.
+
+#ifndef WEBKIT_GLUE_PLUGINS_GTK_PLUGIN_CONTAINER_HOST_H_
+#define WEBKIT_GLUE_PLUGINS_GTK_PLUGIN_CONTAINER_HOST_H_
+
+#include <gtk/gtk.h>
+#include <map>
+#include "base/gfx/native_widget_types.h"
+
+typedef struct _GtkWidget GtkWidget;
+struct WebPluginGeometry;
+
+// Helper class that creates and manages plugin containers (GtkSocket).
+class GtkPluginContainerHost {
+ public:
+  GtkPluginContainerHost() : host_widget_(NULL) { }
+
+  // Sets the widget that will host the plugin containers. Must be a GtkFixed.
+  void set_host_widget(GtkWidget *widget) { host_widget_ = widget; }
+
+  // Creates a new plugin container, returning its XID.
+  gfx::PluginWindowHandle CreatePluginContainer();
+
+  // Destroys a plugin container, given its XID.
+  void DestroyPluginContainer(gfx::PluginWindowHandle container);
+
+  // Moves a plugin container.
+  void MovePluginContainer(const WebPluginGeometry& move);
+
+ private:
+  // Maps a plugin container XID to the corresponding widget.
+  GtkWidget* MapIDToWidget(gfx::PluginWindowHandle id);
+
+  // Call back for when the plugin container loses its XID, so that it can be
+  // removed from plugin_window_to_widget_map_.
+  static gboolean UnrealizeCallback(GtkWidget *widget, void *user_data);
+
+  // Parent of the plugin containers.
+  GtkWidget* host_widget_;
+
+  // A map that associates plugin containers to their XID.
+  typedef std::map<gfx::PluginWindowHandle, GtkWidget*> PluginWindowToWidgetMap;
+  PluginWindowToWidgetMap plugin_window_to_widget_map_;
+};
+
+#endif  // WEBKIT_GLUE_PLUGINS_GTK_PLUGIN_CONTAINER_HOST_H_