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| 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 ASH_WM_WORKSPACE_WORKSPACE_MANAGER2_H_ | |
| 6 #define ASH_WM_WORKSPACE_WORKSPACE_MANAGER2_H_ | |
| 7 | |
| 8 #include <set> | |
| 9 #include <string> | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "ash/ash_export.h" | |
| 13 #include "ash/shell_observer.h" | |
| 14 #include "ash/wm/workspace/workspace_types.h" | |
| 15 #include "base/basictypes.h" | |
| 16 #include "base/compiler_specific.h" | |
| 17 #include "base/memory/weak_ptr.h" | |
| 18 #include "base/time.h" | |
| 19 #include "base/timer.h" | |
| 20 #include "ui/base/ui_base_types.h" | |
| 21 | |
| 22 namespace aura { | |
| 23 class Window; | |
| 24 } | |
| 25 | |
| 26 namespace base { | |
| 27 class TimeDelta; | |
| 28 } | |
| 29 | |
| 30 namespace gfx { | |
| 31 class Point; | |
| 32 class Rect; | |
| 33 } | |
| 34 | |
| 35 namespace ui { | |
| 36 class Layer; | |
| 37 } | |
| 38 | |
| 39 namespace ash { | |
| 40 namespace internal { | |
| 41 | |
| 42 class DesktopBackgroundFadeController; | |
| 43 class ShelfLayoutManager; | |
| 44 class WorkspaceLayoutManager2; | |
| 45 class WorkspaceManagerTest2; | |
| 46 class Workspace2; | |
| 47 | |
| 48 // WorkspaceManager manages multiple workspaces in the desktop. Workspaces are | |
| 49 // implicitly created as windows are maximized (or made fullscreen), and | |
| 50 // destroyed when maximized windows are closed or restored. There is always one | |
| 51 // workspace for the desktop. | |
| 52 // Internally WorkspaceManager2 creates a Window for each Workspace. As windows | |
| 53 // are maximized and restored they are reparented to the right Window. | |
| 54 class ASH_EXPORT WorkspaceManager2 : public ash::ShellObserver { | |
| 55 public: | |
| 56 explicit WorkspaceManager2(aura::Window* viewport); | |
| 57 virtual ~WorkspaceManager2(); | |
| 58 | |
| 59 // Returns true if |window| is considered maximized and should exist in its | |
| 60 // own workspace. | |
| 61 static bool IsMaximized(aura::Window* window); | |
| 62 static bool IsMaximizedState(ui::WindowShowState state); | |
| 63 | |
| 64 // Returns true if |window| is minimized and will restore to a maximized | |
| 65 // window. | |
| 66 static bool WillRestoreMaximized(aura::Window* window); | |
| 67 | |
| 68 // Returns the current window state. | |
| 69 WorkspaceWindowState GetWindowState() const; | |
| 70 | |
| 71 void SetShelf(ShelfLayoutManager* shelf); | |
| 72 | |
| 73 // Activates the workspace containing |window|. Does nothing if |window| is | |
| 74 // NULL or not contained in a workspace. | |
| 75 void SetActiveWorkspaceByWindow(aura::Window* window); | |
| 76 | |
| 77 // Returns the parent for |window|. This is invoked from StackingController | |
| 78 // when a new Window is being added. | |
| 79 aura::Window* GetParentForNewWindow(aura::Window* window); | |
| 80 | |
| 81 // Starts the animation that occurs on first login. | |
| 82 void DoInitialAnimation(); | |
| 83 | |
| 84 // ShellObserver overrides: | |
| 85 virtual void OnAppTerminating() OVERRIDE; | |
| 86 | |
| 87 private: | |
| 88 friend class WorkspaceLayoutManager2; | |
| 89 friend class WorkspaceManager2Test; | |
| 90 | |
| 91 class LayoutManagerImpl; | |
| 92 | |
| 93 typedef std::vector<Workspace2*> Workspaces; | |
| 94 | |
| 95 // Reason for the workspace switch. Used to determine the characterstics of | |
| 96 // the animation. | |
| 97 enum SwitchReason { | |
| 98 SWITCH_WINDOW_MADE_ACTIVE, | |
| 99 SWITCH_WINDOW_REMOVED, | |
| 100 SWITCH_VISIBILITY_CHANGED, | |
| 101 SWITCH_MINIMIZED, | |
| 102 SWITCH_MAXIMIZED_OR_RESTORED, | |
| 103 SWITCH_TRACKED_BY_WORKSPACE_CHANGED, | |
| 104 | |
| 105 // Switch as the result of DoInitialAnimation(). This isn't a real switch, | |
| 106 // rather we run the animations as if a switch occurred. | |
| 107 SWITCH_INITIAL, | |
| 108 | |
| 109 // Edge case. See comment in OnWorkspaceWindowShowStateChanged(). Don't | |
| 110 // make other types randomly use this! | |
| 111 SWITCH_OTHER, | |
| 112 }; | |
| 113 | |
| 114 // Updates the visibility and whether any windows overlap the shelf. | |
| 115 void UpdateShelfVisibility(); | |
| 116 | |
| 117 // Returns the workspace that contains |window|. | |
| 118 Workspace2* FindBy(aura::Window* window) const; | |
| 119 | |
| 120 // Sets the active workspace. | |
| 121 void SetActiveWorkspace(Workspace2* workspace, | |
| 122 SwitchReason reason, | |
| 123 base::TimeDelta duration); | |
| 124 | |
| 125 // Returns the bounds of the work area. | |
| 126 gfx::Rect GetWorkAreaBounds() const; | |
| 127 | |
| 128 // Returns an iterator into |workspaces_| for |workspace|. | |
| 129 Workspaces::iterator FindWorkspace(Workspace2* workspace); | |
| 130 | |
| 131 Workspace2* desktop_workspace() { return workspaces_[0]; } | |
| 132 const Workspace2* desktop_workspace() const { return workspaces_[0]; } | |
| 133 | |
| 134 // Creates a new workspace. The Workspace is not added to anything and is | |
| 135 // owned by the caller. | |
| 136 Workspace2* CreateWorkspace(bool maximized); | |
| 137 | |
| 138 // Moves all the non-maximized child windows of |workspace| to the desktop | |
| 139 // stacked beneath |stack_beneath| (if non-NULL). After moving child windows | |
| 140 // if |workspace| contains no children it is deleted, otherwise it it moved to | |
| 141 // |pending_workspaces_|. | |
| 142 void MoveWorkspaceToPendingOrDelete(Workspace2* workspace, | |
| 143 aura::Window* stack_beneath, | |
| 144 SwitchReason reason); | |
| 145 | |
| 146 // Moves the children of |window| to the desktop. This excludes certain | |
| 147 // windows. If |stack_beneath| is non-NULL the windows are stacked beneath it. | |
| 148 void MoveChildrenToDesktop(aura::Window* window, aura::Window* stack_beneath); | |
| 149 | |
| 150 // Selects the next workspace. | |
| 151 void SelectNextWorkspace(SwitchReason reason); | |
| 152 | |
| 153 // Schedules |workspace| for deletion when it no longer contains any layers. | |
| 154 // See comments above |to_delete_| as to why we do this. | |
| 155 void ScheduleDelete(Workspace2* workspace); | |
| 156 | |
| 157 // Deletes any workspaces scheduled via ScheduleDelete() that don't contain | |
| 158 // any layers. | |
| 159 void ProcessDeletion(); | |
| 160 | |
| 161 // Sets |unminimizing_workspace_| to |workspace|. | |
| 162 void SetUnminimizingWorkspace(Workspace2* workspace); | |
| 163 | |
| 164 // Fades the desktop. This is only used when maximizing or restoring a | |
| 165 // window. The actual fade is handled by | |
| 166 // DesktopBackgroundFadeController. |window| is used when restoring and | |
| 167 // indicates the window to stack the DesktopBackgroundFadeController's window | |
| 168 // above. | |
| 169 void FadeDesktop(aura::Window* window, base::TimeDelta duration); | |
| 170 | |
| 171 // Shows or hides the desktop Window |window|. | |
| 172 void ShowOrHideDesktopBackground(aura::Window* window, | |
| 173 SwitchReason reason, | |
| 174 base::TimeDelta duration, | |
| 175 bool show) const; | |
| 176 | |
| 177 // Shows/hides |workspace| animating as necessary. | |
| 178 void ShowWorkspace(Workspace2* workspace, | |
| 179 Workspace2* last_active, | |
| 180 SwitchReason reason) const; | |
| 181 void HideWorkspace(Workspace2* workspace, | |
| 182 SwitchReason reason, | |
| 183 bool is_unminimizing_maximized_window) const; | |
| 184 | |
| 185 // These methods are forwarded from the LayoutManager installed on the | |
| 186 // Workspace's window. | |
| 187 void OnWindowAddedToWorkspace(Workspace2* workspace, aura::Window* child); | |
| 188 void OnWillRemoveWindowFromWorkspace(Workspace2* workspace, | |
| 189 aura::Window* child); | |
| 190 void OnWindowRemovedFromWorkspace(Workspace2* workspace, aura::Window* child); | |
| 191 void OnWorkspaceChildWindowVisibilityChanged(Workspace2* workspace, | |
| 192 aura::Window* child); | |
| 193 void OnWorkspaceWindowChildBoundsChanged(Workspace2* workspace, | |
| 194 aura::Window* child); | |
| 195 void OnWorkspaceWindowShowStateChanged(Workspace2* workspace, | |
| 196 aura::Window* child, | |
| 197 ui::WindowShowState last_show_state, | |
| 198 ui::Layer* old_layer); | |
| 199 void OnTrackedByWorkspaceChanged(Workspace2* workspace, | |
| 200 aura::Window* window); | |
| 201 | |
| 202 aura::Window* contents_view_; | |
| 203 | |
| 204 Workspace2* active_workspace_; | |
| 205 | |
| 206 // The set of active workspaces. There is always at least one in this stack, | |
| 207 // which identifies the desktop. | |
| 208 Workspaces workspaces_; | |
| 209 | |
| 210 // The set of workspaces not currently active. Workspaces ended up here in | |
| 211 // two scenarios: | |
| 212 // . Prior to adding a window a new worskpace is created for it. The | |
| 213 // Workspace is added to this set. | |
| 214 // . When the maximized window is minimized the workspace is added here. | |
| 215 // Once any window in the workspace is activated the workspace is moved to | |
| 216 // |workspaces_|. | |
| 217 std::set<Workspace2*> pending_workspaces_; | |
| 218 | |
| 219 // Owned by the Shell. May be NULL. | |
| 220 ShelfLayoutManager* shelf_; | |
| 221 | |
| 222 // Whether or not we're in MoveWorkspaceToPendingOrDelete(). As | |
| 223 // MoveWorkspaceToPendingOrDelete() may trigger another call to | |
| 224 // MoveWorkspaceToPendingOrDelete() we use this to avoid doing anything if | |
| 225 // already in MoveWorkspaceToPendingOrDelete(). | |
| 226 bool in_move_; | |
| 227 | |
| 228 // Ideally we would delete workspaces when not needed. Unfortunately doing so | |
| 229 // would effectively cancel animations. Instead when a workspace is no longer | |
| 230 // needed we add it here and start a timer. When the timer fires any windows | |
| 231 // no longer contain layers are deleted. | |
| 232 std::set<Workspace2*> to_delete_; | |
| 233 base::OneShotTimer<WorkspaceManager2> delete_timer_; | |
| 234 | |
| 235 // See comments in SetUnminimizingWorkspace() for details. | |
| 236 base::WeakPtrFactory<WorkspaceManager2> clear_unminimizing_workspace_factory_; | |
| 237 | |
| 238 // See comments in SetUnminimizingWorkspace() for details. | |
| 239 Workspace2* unminimizing_workspace_; | |
| 240 | |
| 241 // Set to true if the app is terminating. If true we don't animate the | |
| 242 // background, otherwise it can get stuck in the fading position when chrome | |
| 243 // exits (as the last frame we draw before exiting is a frame from the | |
| 244 // animation). | |
| 245 bool app_terminating_; | |
| 246 | |
| 247 scoped_ptr<DesktopBackgroundFadeController> desktop_fade_controller_; | |
| 248 | |
| 249 // Set to true while in the process of creating a | |
| 250 // DesktopBackgroundFadeController. | |
| 251 bool creating_fade_; | |
| 252 | |
| 253 DISALLOW_COPY_AND_ASSIGN(WorkspaceManager2); | |
| 254 }; | |
| 255 | |
| 256 } // namespace internal | |
| 257 } // namespace ash | |
| 258 | |
| 259 #endif // ASH_WM_WORKSPACE_WORKSPACE_MANAGER2_H_ | |
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Chromium Code Reviews
Issue 11293014:
Renames Workspace*2 -> Workspace*. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/