Port notifications to linux. BalloonView and BalloonViewHost should be equivalent to their counterparts under browser/views/notifications; CL also enables the exposure of notifications in WebKit on linux platform.

BUG=23954
TEST=none

Review URL: http://codereview.chromium.org/525050

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@36434 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 156 insertions, 0 deletions

diff --git a/chrome/browser/gtk/notifications/balloon_view_gtk.h b/chrome/browser/gtk/notifications/balloon_view_gtk.h
new file mode 100644
index 0000000..b0cf8ed
--- /dev/null
+++ b/chrome/browser/gtk/notifications/balloon_view_gtk.h
@@ -0,0 +1,156 @@
+// Copyright (c) 2010 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.
+
+// Draws the view for the balloons.
+
+#ifndef CHROME_BROWSER_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_
+#define CHROME_BROWSER_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_
+
+#include "app/animation.h"
+#include "base/basictypes.h"
+#include "base/gfx/point.h"
+#include "base/gfx/rect.h"
+#include "base/gfx/size.h"
+#include "base/scoped_ptr.h"
+#include "chrome/browser/gtk/menu_gtk.h"
+#include "chrome/browser/notifications/balloon.h"
+#include "chrome/common/notification_observer.h"
+#include "chrome/common/notification_registrar.h"
+
+
+class BalloonViewHost;
+class MenuGtk;
+class NineBox;
+class NotificationDetails;
+class NotificationOptionsMenuModel;
+class NotificationSource;
+class SlideAnimation;
+
+// A balloon view is the UI component for desktop notification toasts.
+// It draws a border, and within the border an HTML renderer.
+class BalloonViewImpl : public BalloonView,
+                        public MenuGtk::Delegate,
+                        public NotificationObserver,
+                        public AnimationDelegate {
+ public:
+  BalloonViewImpl();
+  ~BalloonViewImpl();
+
+  // BalloonView interface.
+  virtual void Show(Balloon* balloon);
+  virtual void RepositionToBalloon();
+  virtual void Close(bool by_user);
+  virtual gfx::Size GetSize() const;
+
+ private:
+  // MenuGtk::Delegate interface.  These methods shouldn't actually be
+  // called because we are using a MenuModel which handles these callbacks.
+  virtual bool IsCommandEnabled(int command_id) const {
+    NOTIMPLEMENTED();
+    return true;
+  }
+  virtual void ExecuteCommand(int command_id) {
+    NOTIMPLEMENTED();
+  }
+
+  // Initializes the toolbar style with GTK.
+  void InitToolbarStyle();
+
+  // NotificationObserver interface.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // AnimationDelegate interface.
+  virtual void AnimationProgressed(const Animation* animation);
+
+  // Launches the options menu.
+  void RunOptionsMenu();
+
+  // Adjust the contents window size to be appropriate for the frame.
+  void SizeContentsWindow();
+
+  // Do the delayed close work.
+  void DelayedClose(bool by_user);
+
+  // The height of the balloon's shelf.
+  // The shelf is where is close button is located.
+  int GetShelfHeight() const;
+
+  // The height of the part of the frame around the balloon.
+  int GetBalloonFrameHeight() const;
+
+  // The width and height that the frame should be.  If the balloon inside
+  // changes size, this will not be the same as the actual frame size until
+  // RepositionToBalloon() has been called and the animation completes.
+  int GetDesiredTotalWidth() const;
+  int GetDesiredTotalHeight() const;
+
+  // Where the balloon contents should be placed with respect to the top left
+  // of the frame.
+  gfx::Point GetContentsOffset() const;
+
+  // Where the balloon contents should be in screen coordinates.
+  gfx::Rect GetContentsRectangle() const;
+
+  static gboolean HandleExposeThunk(GtkWidget* widget,
+                                    GdkEventExpose* event,
+                                    gpointer user_data) {
+    return reinterpret_cast<BalloonViewImpl*>(user_data)->HandleExpose();
+  }
+  gboolean HandleExpose();
+
+  static void HandleCloseButtonThunk(GtkWidget* widget, gpointer user_data) {
+    reinterpret_cast<BalloonViewImpl*>(user_data)->Close(true);
+  }
+
+  static void HandleOptionsMenuButtonThunk(GtkWidget* widget,
+                                           gpointer user_data) {
+    reinterpret_cast<BalloonViewImpl*>(user_data)->RunOptionsMenu();
+  }
+
+  // Non-owned pointer to the balloon which owns this object.
+  Balloon* balloon_;
+
+  // The window that contains the frame of the notification.
+  GtkWidget* frame_container_;
+
+  // The widget that contains the shelf.
+  GtkWidget* shelf_;
+
+  // The toolbar widget within the shelf that contains the buttons.
+  GtkWidget* toolbar_;
+
+  // The window that contains the contents of the notification.
+  GtkWidget* html_container_;
+
+  // The renderer of the HTML contents. Pointer owned by the views hierarchy.
+  BalloonViewHost* html_contents_;
+
+  // The following factory is used to call methods at a later time.
+  ScopedRunnableMethodFactory<BalloonViewImpl> method_factory_;
+
+  // Image painters for the frame of the toast.
+  scoped_ptr<NineBox> shelf_background_;
+  scoped_ptr<NineBox> balloon_background_;
+
+  // Pointer to sub-view is owned by the View sub-class.
+  GtkWidget* close_button_;
+
+  // An animation to move the balloon on the screen as its position changes.
+  scoped_ptr<SlideAnimation> animation_;
+  gfx::Rect anim_frame_start_;
+  gfx::Rect anim_frame_end_;
+
+  // The options menu.
+  scoped_ptr<MenuGtk> options_menu_;
+  scoped_ptr<NotificationOptionsMenuModel> options_menu_model_;
+  GtkWidget* options_menu_button_;
+
+  NotificationRegistrar notification_registrar_;
+
+  DISALLOW_COPY_AND_ASSIGN(BalloonViewImpl);
+};
+
+#endif  // CHROME_BROWSER_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_