src/ui/wm/core/window_animations.h

   1 // Copyright (c) 2012 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_WINDOW_ANIMATIONS_H_
   6 #define UI_WM_CORE_WINDOW_ANIMATIONS_H_
   7
   8 #include <vector>
   9
  10 #include "ui/compositor/scoped_layer_animation_settings.h"
  11 #include "ui/wm/wm_export.h"
  12
  13 namespace aura {
  14 class Window;
  15 }
  16 namespace base {
  17 class TimeDelta;
  18 }
  19 namespace gfx {
  20 class Rect;
  21 }
  22 namespace ui {
  23 class ImplicitAnimationObserver;
  24 class Layer;
  25 class LayerAnimationSequence;
  26 }
  27
  28 namespace wm {
  29
  30 // A variety of canned animations for window transitions.
  31 enum WindowVisibilityAnimationType {
  32   WINDOW_VISIBILITY_ANIMATION_TYPE_DEFAULT = 0,     // Default. Lets the system
  33                                                     // decide based on window
  34                                                     // type.
  35   WINDOW_VISIBILITY_ANIMATION_TYPE_DROP,            // Window shrinks in.
  36   WINDOW_VISIBILITY_ANIMATION_TYPE_VERTICAL,        // Vertical Glenimation.
  37   WINDOW_VISIBILITY_ANIMATION_TYPE_FADE,            // Fades in/out.
  38   WINDOW_VISIBILITY_ANIMATION_TYPE_ROTATE,          // Window rotates in.
  39
  40   // Downstream library animations start above this point.
  41   WINDOW_VISIBILITY_ANIMATION_MAX
  42 };
  43
  44 // Canned animations that take effect once but don't have a symmetric pair as
  45 // visibility animations do.
  46 enum WindowAnimationType {
  47   WINDOW_ANIMATION_TYPE_BOUNCE = 0,  // Window scales up and down.
  48 };
  49
  50 // Type of visibility change transition that a window should animate.
  51 // Default behavior is to animate both show and hide.
  52 enum WindowVisibilityAnimationTransition {
  53   ANIMATE_SHOW = 0x1,
  54   ANIMATE_HIDE = 0x2,
  55   ANIMATE_BOTH = ANIMATE_SHOW | ANIMATE_HIDE,
  56   ANIMATE_NONE = 0x4,
  57 };
  58
  59 // These two methods use int for type rather than WindowVisibilityAnimationType
  60 // since downstream libraries can extend the set of animations.
  61 WM_EXPORT void SetWindowVisibilityAnimationType(aura::Window* window, int type);
  62 WM_EXPORT int GetWindowVisibilityAnimationType(aura::Window* window);
  63
  64 WM_EXPORT void SetWindowVisibilityAnimationTransition(
  65     aura::Window* window,
  66     WindowVisibilityAnimationTransition transition);
  67
  68 WM_EXPORT bool HasWindowVisibilityAnimationTransition(
  69     aura::Window* window,
  70     WindowVisibilityAnimationTransition transition);
  71
  72 WM_EXPORT void SetWindowVisibilityAnimationDuration(
  73     aura::Window* window,
  74     const base::TimeDelta& duration);
  75
  76 WM_EXPORT base::TimeDelta GetWindowVisibilityAnimationDuration(
  77     const aura::Window& window);
  78
  79 WM_EXPORT void SetWindowVisibilityAnimationVerticalPosition(
  80     aura::Window* window,
  81     float position);
  82
  83 class ImplicitHidingWindowAnimationObserver;
  84 // A wrapper of ui::ScopedLayerAnimationSettings for implicit hiding animations.
  85 // Use this to ensure that the hiding animation is visible even after
  86 // the window is deleted or deactivated, instead of using
  87 // ui::ScopedLayerAnimationSettings directly.
  88 class WM_EXPORT ScopedHidingAnimationSettings {
  89  public:
  90   explicit ScopedHidingAnimationSettings(aura::Window* window);
  91   ~ScopedHidingAnimationSettings();
  92
  93   // Returns the wrapped ScopedLayeAnimationSettings instance.
  94   ui::ScopedLayerAnimationSettings* layer_animation_settings() {
  95     return &layer_animation_settings_;
  96   }
  97
  98  private:
  99   ui::ScopedLayerAnimationSettings layer_animation_settings_;
 100   ImplicitHidingWindowAnimationObserver* observer_;
 101
 102   DISALLOW_COPY_AND_ASSIGN(ScopedHidingAnimationSettings);
 103 };
 104
 105 // Returns false if the |window| didn't animate.
 106 WM_EXPORT bool AnimateOnChildWindowVisibilityChanged(aura::Window* window,
 107                                                      bool visible);
 108 WM_EXPORT bool AnimateWindow(aura::Window* window, WindowAnimationType type);
 109
 110 // Returns true if window animations are disabled for |window|. Window
 111 // animations are enabled by default. If |window| is NULL, this just checks
 112 // if the global flag disabling window animations is present.
 113 WM_EXPORT bool WindowAnimationsDisabled(aura::Window* window);
 114
 115 }  // namespace wm
 116
 117 #endif  // UI_WM_CORE_WINDOW_ANIMATIONS_H_