Revert of mash: Convert TrayBackgroundView to wm common types

ash/system/tray/tray_event_filter.cc

Index: ash/system/tray/tray_event_filter.cc
diff --git a/ash/system/tray/tray_event_filter.cc b/ash/system/tray/tray_event_filter.cc
new file mode 100644
index 0000000000000000000000000000000000000000..46b8194458ca1148e805cb6d79f1fe5b435d47dc
--- /dev/null
+++ b/ash/system/tray/tray_event_filter.cc
@@ -0,0 +1,101 @@
+// 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/common/shell_window_ids.h"
+#include "ash/common/wm/container_finder.h"
+#include "ash/common/wm_lookup.h"
+#include "ash/common/wm_shell.h"
+#include "ash/common/wm_window.h"
+#include "ash/system/tray/tray_background_view.h"
+#include "ash/system/tray/tray_bubble_wrapper.h"
+#include "ui/views/widget/widget.h"
+
+namespace ash {
+
+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())
+    WmShell::Get()->AddPointerWatcher(this);
+}
+
+void TrayEventFilter::RemoveWrapper(TrayBubbleWrapper* wrapper) {
+  wrappers_.erase(wrapper);
+  if (wrappers_.empty())
+    WmShell::Get()->RemovePointerWatcher(this);
+}
+
+void TrayEventFilter::OnMousePressed(const ui::MouseEvent& event,
+                                     const gfx::Point& location_in_screen,
+                                     views::Widget* target) {
+  ProcessPressedEvent(location_in_screen, target);
+}
+
+void TrayEventFilter::OnTouchPressed(const ui::TouchEvent& event,
+                                     const gfx::Point& location_in_screen,
+                                     views::Widget* target) {
+  ProcessPressedEvent(location_in_screen, target);
+}
+
+void TrayEventFilter::ProcessPressedEvent(const gfx::Point& location_in_screen,
+                                          views::Widget* target) {
+  if (target) {
+    WmWindow* window = WmLookup::Get()->GetWindowForWidget(target);
+    int container_id = wm::GetContainerForWindow(window)->GetShellWindowId();
+    // Don't process events that occurred inside an embedded menu, for example
+    // the right-click menu in a popup notification.
+    if (container_id == kShellWindowId_MenuContainer)
+      return;
+    // Don't process events that occurred inside the status area widget and
+    // a popup notification from message center.
+    if (container_id == kShellWindowId_StatusContainer)
+      return;
+  }
+
+  // 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());
+    if (bounds.Contains(location_in_screen))
+      return;
+    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(location_in_screen))
+        return;
+    }
+  }
+
+  // Handle clicking outside the bubble and tray.
+  // 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());
+  }
+  for (std::set<TrayBackgroundView*>::iterator iter = trays.begin();
+       iter != trays.end(); ++iter) {
+    (*iter)->ClickedOutsideBubble();
+  }
+}
+
+}  // namespace ash