1 files changed, 114 insertions, 0 deletions
diff --git a/chromium/ash/system/tray/tray_event_filter.cc b/chromium/ash/system/tray/tray_event_filter.cc
new file mode 100644
index 00000000000..949b2f93a17
--- /dev/null
+++ b/chromium/ash/system/tray/tray_event_filter.cc
@@ -0,0 +1,114 @@
+// Copyright (c) 2012 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 "ash/system/tray/tray_event_filter.h"
+
+#include "ash/root_window_controller.h"
+#include "ash/shelf/shelf_layout_manager.h"
+#include "ash/shell.h"
+#include "ash/shell_window_ids.h"
+#include "ash/system/tray/tray_background_view.h"
+#include "ash/system/tray/tray_bubble_wrapper.h"
+#include "ash/system/tray/tray_constants.h"
+#include "ash/system/tray/tray_event_filter.h"
+#include "ash/wm/property_util.h"
+#include "ui/aura/client/screen_position_client.h"
+#include "ui/aura/root_window.h"
+#include "ui/aura/window.h"
+#include "ui/views/widget/widget.h"
+
+namespace ash {
+namespace internal {
+
+TrayEventFilter::TrayEventFilter() {
+}
+
+TrayEventFilter::~TrayEventFilter() {
+  DCHECK(wrappers_.empty());
+}
+
+void TrayEventFilter::AddWrapper(TrayBubbleWrapper* wrapper) {
+  bool was_empty = wrappers_.empty();
+  wrappers_.insert(wrapper);
+  if (was_empty && !wrappers_.empty())
+    ash::Shell::GetInstance()->AddPreTargetHandler(this);
+}
+
+void TrayEventFilter::RemoveWrapper(TrayBubbleWrapper* wrapper) {
+  wrappers_.erase(wrapper);
+  if (wrappers_.empty())
+    ash::Shell::GetInstance()->RemovePreTargetHandler(this);
+}
+
+void TrayEventFilter::OnMouseEvent(ui::MouseEvent* event) {
+  if (event->type() == ui::ET_MOUSE_PRESSED &&
+      ProcessLocatedEvent(event)) {
+    event->StopPropagation();
+  }
+}
+
+void TrayEventFilter::OnTouchEvent(ui::TouchEvent* event) {
+  if (event->type() == ui::ET_TOUCH_PRESSED && ProcessLocatedEvent(event))
+    event->StopPropagation();
+}
+
+bool TrayEventFilter::ProcessLocatedEvent(ui::LocatedEvent* event) {
+  if (event->target()) {
+    aura::Window* target = static_cast<aura::Window*>(event->target());
+    // Don't process events that occurred inside an embedded menu.
+    ash::internal::RootWindowController* root_controller =
+        ash::GetRootWindowController(target->GetRootWindow());
+    if (root_controller && root_controller->GetContainer(
+            ash::internal::kShellWindowId_MenuContainer)->Contains(target)) {
+      return false;
+    }
+  }
+
+  // Check the boundary for all wrappers, and do not handle the event if it
+  // happens inside of any of those wrappers.
+  for (std::set<TrayBubbleWrapper*>::const_iterator iter = wrappers_.begin();
+       iter != wrappers_.end(); ++iter) {
+    const TrayBubbleWrapper* wrapper = *iter;
+    const views::Widget* bubble_widget = wrapper->bubble_widget();
+    if (!bubble_widget)
+      continue;
+
+    gfx::Rect bounds = bubble_widget->GetWindowBoundsInScreen();
+    bounds.Inset(wrapper->bubble_view()->GetBorderInsets());
+    aura::RootWindow* root = bubble_widget->GetNativeView()->GetRootWindow();
+    aura::client::ScreenPositionClient* screen_position_client =
+        aura::client::GetScreenPositionClient(root);
+    gfx::Point screen_point(event->root_location());
+    screen_position_client->ConvertPointToScreen(root, &screen_point);
+
+    if (bounds.Contains(screen_point))
+      return false;
+    if (wrapper->tray()) {
+      // If the user clicks on the parent tray, don't process the event here,
+      // let the tray logic handle the event and determine show/hide behavior.
+      bounds = wrapper->tray()->GetBoundsInScreen();
+      if (bounds.Contains(screen_point))
+        return false;
+    }
+  }
+
+  // Handle clicking outside the bubble and tray and return true if the
+  // event was handled.
+  // Cannot iterate |wrappers_| directly, because clicking outside will remove
+  // the wrapper, which shrinks |wrappers_| unsafely.
+  std::set<TrayBackgroundView*> trays;
+  for (std::set<TrayBubbleWrapper*>::iterator iter = wrappers_.begin();
+       iter != wrappers_.end(); ++iter) {
+    trays.insert((*iter)->tray());
+  }
+  bool handled = false;
+  for (std::set<TrayBackgroundView*>::iterator iter = trays.begin();
+       iter != trays.end(); ++iter) {
+    handled |= (*iter)->ClickedOutsideBubble();
+  }
+  return handled;
+}
+
+}  // namespace internal
+}  // namespace ash