Home | History | Annotate | Download | only in core
      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef UI_WM_CORE_EASY_RESIZE_WINDOW_TARGETER_H_
      6 #define UI_WM_CORE_EASY_RESIZE_WINDOW_TARGETER_H_
      7 
      8 #include "ui/aura/window_targeter.h"
      9 #include "ui/gfx/geometry/insets.h"
     10 #include "ui/wm/wm_export.h"
     11 
     12 namespace wm {
     13 
     14 // An EventTargeter for a container window that uses a slightly larger
     15 // hit-target region for easier resize.
     16 class WM_EXPORT EasyResizeWindowTargeter : public aura::WindowTargeter {
     17  public:
     18   // |container| window is the owner of this targeter.
     19   EasyResizeWindowTargeter(aura::Window* container,
     20                            const gfx::Insets& mouse_extend,
     21                            const gfx::Insets& touch_extend);
     22 
     23   virtual ~EasyResizeWindowTargeter();
     24 
     25  protected:
     26   void set_mouse_extend(const gfx::Insets& mouse_extend) {
     27     mouse_extend_ = mouse_extend;
     28   }
     29 
     30   void set_touch_extend(const gfx::Insets& touch_extend) {
     31     touch_extend_ = touch_extend;
     32   }
     33 
     34   // ui::EventTargeter:
     35   virtual bool EventLocationInsideBounds(
     36       ui::EventTarget* target,
     37       const ui::LocatedEvent& event) const OVERRIDE;
     38 
     39  private:
     40   // Returns true if the hit testing (EventLocationInsideBounds()) should use
     41   // the extended bounds.
     42   bool ShouldUseExtendedBounds(const aura::Window* window) const;
     43 
     44   aura::Window* container_;
     45   gfx::Insets mouse_extend_;
     46   gfx::Insets touch_extend_;
     47 
     48   DISALLOW_COPY_AND_ASSIGN(EasyResizeWindowTargeter);
     49 };
     50 
     51 }  // namespace wm
     52 
     53 #endif  // UI_WM_CORE_EASY_RESIZE_WINDOW_TARGETER_H_
     54