chrome/browser/gtk/link_button_gtk.h


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// 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 <gdk/gdk.h>
#include <gtk/gtk.h>

#include "chrome/common/owned_widget_gtk.h"

// Creates a link button that shows |text| in blue and underlined. The cursor
// changes to a hand when over the link.
// TODO(estade): the link should turn red during the user's click.
class LinkButtonGtk {
 public:
  explicit LinkButtonGtk(const char* text);
  virtual ~LinkButtonGtk();

  GtkWidget* widget() { return widget_.get(); }

 private:
  // Called when the pointer enters or leaves the button.
  static gboolean OnEnter(GtkWidget* widget, LinkButtonGtk* link_button);
  static gboolean OnLeave(GtkWidget* widget, LinkButtonGtk* link_button);

  // Called when the pointer moves over the link button's gdk window.
  static gboolean OnMotionNotify(GtkWidget* widget,
                                 GdkEventMotion* event,
                                 LinkButtonGtk* link_button);

  // Called when the widget is exposed.
  static gboolean OnExpose(GtkWidget* widget,
                           GdkEventExpose* event,
                           gpointer user_data);

  OwnedWidgetGtk widget_;
  GdkCursor* hand_cursor_;
};