Consolidate message observer API for win and aura (and touch).

chrome/browser/notifications/balloon_collection_linux.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 "chrome/browser/notifications/balloon_collection_impl.h"
-
-#include "chrome/browser/notifications/balloon.h"
-#include "ui/gfx/size.h"
-
-#if defined(TOOLKIT_VIEWS)
-#include "chrome/browser/ui/views/notifications/balloon_view.h"
-#else
-#include "chrome/browser/ui/gtk/notifications/balloon_view_gtk.h"
-#endif
-
-Balloon* BalloonCollectionImpl::MakeBalloon(const Notification& notification,
-                                            Profile* profile) {
-  Balloon* balloon = new Balloon(notification, profile, this);
-
-  balloon->set_view(new BalloonViewImpl(this));
-  gfx::Size size(layout_.min_balloon_width(), layout_.min_balloon_height());
-  balloon->set_content_size(size);
-  return balloon;
-}
-
-int BalloonCollectionImpl::Layout::InterBalloonMargin() const {
-  return 5;
-}
-
-int BalloonCollectionImpl::Layout::HorizontalEdgeMargin() const {
-  return 5;
-}
-
-int BalloonCollectionImpl::Layout::VerticalEdgeMargin() const {
-  return 5;
-}
-
-void BalloonCollectionImpl::PositionBalloons(bool reposition) {
-  PositionBalloonsInternal(reposition);
-}
-
-void BalloonCollectionImpl::DidProcessEvent(GdkEvent* event) {
-  switch (event->type) {
-    case GDK_MOTION_NOTIFY:
-    case GDK_LEAVE_NOTIFY:
-      HandleMouseMoveEvent();
-      break;
-    default:
-      break;
-  }
-}
-
-bool BalloonCollectionImpl::IsCursorInBalloonCollection() const {
-  GdkScreen* screen = gdk_screen_get_default();
-  GdkDisplay* display = gdk_screen_get_display(screen);
-  gint x, y;
-  gdk_display_get_pointer(display, NULL, &x, &y, NULL);
-  gfx::Point cursor(x, y);
-
-  return GetBalloonsBoundingBox().Contains(cursor);
-}
-
-void BalloonCollectionImpl::SetPositionPreference(
-    PositionPreference position) {
-  if (position == DEFAULT_POSITION)
-    position = LOWER_RIGHT;
-
-  // All positioning schemes are vertical, and linux
-  // uses the normal screen orientation.
-  if (position == UPPER_RIGHT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_TOP_RIGHT);
-  else if (position == UPPER_LEFT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_TOP_LEFT);
-  else if (position == LOWER_LEFT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_BOTTOM_LEFT);
-  else if (position == LOWER_RIGHT)
-    layout_.set_placement(Layout::VERTICALLY_FROM_BOTTOM_RIGHT);
-  else
-    NOTREACHED();
-
-  PositionBalloons(true);
-}
-
-// static
-BalloonCollection* BalloonCollection::Create() {
-  return new BalloonCollectionImpl();
-}