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 ASH_WM_PANELS_ATTACHED_PANEL_WINDOW_TARGETER_H_ 6 #define ASH_WM_PANELS_ATTACHED_PANEL_WINDOW_TARGETER_H_ 7 8 #include "ash/shell_observer.h" 9 #include "ui/wm/core/easy_resize_window_targeter.h" 10 11 namespace ash { 12 13 class PanelLayoutManager; 14 15 // A window targeter installed on a panel container to disallow touch 16 // hit-testing of attached panel edges that are adjacent to the shelf. This 17 // makes it significantly easier to correctly target shelf buttons with touch. 18 class AttachedPanelWindowTargeter : public ::wm::EasyResizeWindowTargeter, 19 public ShellObserver { 20 public: 21 AttachedPanelWindowTargeter(aura::Window* container, 22 const gfx::Insets& default_mouse_extend, 23 const gfx::Insets& default_touch_extend, 24 PanelLayoutManager* panel_layout_manager); 25 virtual ~AttachedPanelWindowTargeter(); 26 27 // ShellObserver: 28 virtual void OnShelfCreatedForRootWindow(aura::Window* root_window) OVERRIDE; 29 virtual void OnShelfAlignmentChanged(aura::Window* root_window) OVERRIDE; 30 31 private: 32 void UpdateTouchExtend(aura::Window* root_window); 33 34 aura::Window* panel_container_; 35 PanelLayoutManager* panel_layout_manager_; 36 gfx::Insets default_touch_extend_; 37 38 DISALLOW_COPY_AND_ASSIGN(AttachedPanelWindowTargeter); 39 }; 40 41 } // namespace ash 42 43 #endif // ASH_WM_PANELS_ATTACHED_PANEL_WINDOW_TARGETER_H_ 44