Move chrome/browser/gtk to chrome/browser/ui/gtk

chrome/browser/ui/gtk/tab_contents_drag_source.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 CHROME_BROWSER_UI_GTK_TAB_CONTENTS_DRAG_SOURCE_H_
+#define CHROME_BROWSER_UI_GTK_TAB_CONTENTS_DRAG_SOURCE_H_
+#pragma once
+
+#include <gtk/gtk.h>
+
+#include "app/gtk_signal.h"
+#include "app/gtk_signal_registrar.h"
+#include "base/basictypes.h"
+#include "base/file_path.h"
+#include "base/message_loop.h"
+#include "base/string16.h"
+#include "gfx/point.h"
+#include "gfx/native_widget_types.h"
+#include "googleurl/src/gurl.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebDragOperation.h"
+
+class SkBitmap;
+class TabContents;
+class TabContentsView;
+struct WebDropData;
+
+// TabContentsDragSource takes care of managing the drag from a TabContents
+// with Gtk.
+class TabContentsDragSource : public MessageLoopForUI::Observer {
+ public:
+  explicit TabContentsDragSource(TabContentsView* tab_contents_view);
+  ~TabContentsDragSource();
+
+  TabContents* tab_contents() const;
+
+  // Starts a drag for the tab contents this TabContentsDragSource was
+  // created for.
+  void StartDragging(const WebDropData& drop_data,
+                     WebKit::WebDragOperationsMask allowed_ops,
+                     GdkEventButton* last_mouse_down,
+                     const SkBitmap& image,
+                     const gfx::Point& image_offset);
+
+  // MessageLoop::Observer implementation:
+  virtual void WillProcessEvent(GdkEvent* event);
+  virtual void DidProcessEvent(GdkEvent* event);
+
+ private:
+  CHROMEGTK_CALLBACK_2(TabContentsDragSource, gboolean, OnDragFailed,
+                       GdkDragContext*, GtkDragResult);
+  CHROMEGTK_CALLBACK_1(TabContentsDragSource, void, OnDragBegin,
+                       GdkDragContext*);
+  CHROMEGTK_CALLBACK_1(TabContentsDragSource, void, OnDragEnd,
+                       GdkDragContext*);
+  CHROMEGTK_CALLBACK_4(TabContentsDragSource, void, OnDragDataGet,
+                       GdkDragContext*, GtkSelectionData*, guint, guint);
+  CHROMEGTK_CALLBACK_1(TabContentsDragSource, gboolean, OnDragIconExpose,
+                       GdkEventExpose*);
+
+  gfx::NativeView GetContentNativeView() const;
+
+  // The view we're manging the drag for.
+  TabContentsView* tab_contents_view_;
+
+  // The drop data for the current drag (for drags that originate in the render
+  // view). Non-NULL iff there is a current drag.
+  scoped_ptr<WebDropData> drop_data_;
+
+  // The image used for depicting the drag, and the offset between the cursor
+  // and the top left pixel.
+  GdkPixbuf* drag_pixbuf_;
+  gfx::Point image_offset_;
+
+  // The mime type for the file contents of the current drag (if any).
+  GdkAtom drag_file_mime_type_;
+
+  // Whether the current drag has failed. Meaningless if we are not the source
+  // for a current drag.
+  bool drag_failed_;
+
+  // This is the widget we use to initiate drags. Since we don't use the
+  // renderer widget, we can persist drags even when our contents is switched
+  // out. We can't use an OwnedWidgetGtk because the GtkInvisible widget
+  // initialization code sinks the reference.
+  GtkWidget* drag_widget_;
+
+  // Context created once drag starts.  A NULL value indicates that there is
+  // no drag currently in progress.
+  GdkDragContext* drag_context_;
+
+  // The file mime type for a drag-out download.
+  string16 wide_download_mime_type_;
+
+  // The file name to be saved to for a drag-out download.
+  FilePath download_file_name_;
+
+  // The URL to download from for a drag-out download.
+  GURL download_url_;
+
+  // The widget that provides visual feedback for the drag. We can't use
+  // an OwnedWidgetGtk because the GtkWindow initialization code sinks
+  // the reference.
+  GtkWidget* drag_icon_;
+
+  GtkSignalRegistrar signals_;
+
+  DISALLOW_COPY_AND_ASSIGN(TabContentsDragSource);
+};
+
+#endif  // CHROME_BROWSER_UI_GTK_TAB_CONTENTS_DRAG_SOURCE_H_