mash: Migrate some misc ShelfLayoutManager deps to ash common.

ash/shelf/shelf_bezel_event_handler.cc

 // Copyright 2013 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/shelf/shelf_bezel_event_filter.h"
+#include "ash/shelf/shelf_bezel_event_handler.h"
 
-#include "ash/shelf/shelf_layout_manager.h"
+#include "ash/common/shelf/wm_shelf.h"
 #include "ash/shell.h"
 #include "ui/aura/window.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
+#include "ui/events/event.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/wm/core/coordinate_conversion.h"
 
 namespace ash {
 
-ShelfBezelEventFilter::ShelfBezelEventFilter(
-    ShelfLayoutManager* shelf_layout_manager)
-    : shelf_layout_manager_(shelf_layout_manager), in_touch_drag_(false) {
+ShelfBezelEventHandler::ShelfBezelEventHandler(WmShelf* shelf)
+    : shelf_(shelf), in_touch_drag_(false) {
   Shell::GetInstance()->AddPreTargetHandler(this);
 }
 
-ShelfBezelEventFilter::~ShelfBezelEventFilter() {
+ShelfBezelEventHandler::~ShelfBezelEventHandler() {
   Shell::GetInstance()->RemovePreTargetHandler(this);
 }
 
-void ShelfBezelEventFilter::OnGestureEvent(ui::GestureEvent* event) {
+void ShelfBezelEventHandler::OnGestureEvent(ui::GestureEvent* event) {
   gfx::Point point_in_screen(event->location());
   aura::Window* target = static_cast<aura::Window*>(event->target());
   ::wm::ConvertPointToScreen(target, &point_in_screen);
   gfx::Rect screen = display::Screen::GetScreen()
                          ->GetDisplayNearestPoint(point_in_screen)
                          .bounds();
   if ((!screen.Contains(point_in_screen) &&
        IsShelfOnBezel(screen, point_in_screen)) ||
       in_touch_drag_) {
-    if (shelf_layout_manager_->ProcessGestureEvent(*event)) {
+    if (shelf_->ProcessGestureEvent(*event)) {
       switch (event->type()) {
         case ui::ET_GESTURE_SCROLL_BEGIN:
           in_touch_drag_ = true;
           break;
         case ui::ET_GESTURE_SCROLL_END:
         case ui::ET_SCROLL_FLING_START:
           in_touch_drag_ = false;
           break;
         default:
           break;
       }
       event->StopPropagation();
     }
   }
 }
 
-bool ShelfBezelEventFilter::IsShelfOnBezel(const gfx::Rect& screen,
-                                           const gfx::Point& point) const {
-  return shelf_layout_manager_->SelectValueForShelfAlignment(
-      point.y() >= screen.bottom(), point.x() <= screen.x(),
-      point.x() >= screen.right());
+bool ShelfBezelEventHandler::IsShelfOnBezel(const gfx::Rect& screen,
+                                            const gfx::Point& point) const {
+  switch (shelf_->GetAlignment()) {
+    case SHELF_ALIGNMENT_BOTTOM:
+    case SHELF_ALIGNMENT_BOTTOM_LOCKED:
+      return point.y() >= screen.bottom();
+    case SHELF_ALIGNMENT_LEFT:
+      return point.x() <= screen.x();
+    case SHELF_ALIGNMENT_RIGHT:
+      return point.x() >= screen.right();
+  }
+  NOTREACHED();
+  return false;
 }
 
 }  // namespace ash