| // Copyright 2014 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. |
| |
| #ifndef ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_WINDOW_MANAGER_H_ |
| #define ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_WINDOW_MANAGER_H_ |
| |
| #include <map> |
| #include <set> |
| |
| #include "ash/ash_export.h" |
| #include "ash/shell_observer.h" |
| #include "ash/wm/window_state.h" |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "ui/aura/window_observer.h" |
| #include "ui/events/event_handler.h" |
| #include "ui/gfx/display_observer.h" |
| |
| namespace ui { |
| class TouchEvent; |
| } |
| |
| namespace ash { |
| class MaximizeModeController; |
| class MaximizeModeWindowState; |
| |
| // A window manager which - when created - will force all windows into maximized |
| // mode. Exception are panels and windows which cannot be maximized. |
| // Windows which cannot be maximized / resized are centered with a layer placed |
| // behind the window so that no other windows are visible and/or obscured. |
| // With the destruction of the manager all windows will be restored to their |
| // original state. |
| class ASH_EXPORT MaximizeModeWindowManager : public aura::WindowObserver, |
| public gfx::DisplayObserver, |
| public ShellObserver, |
| public ui::EventHandler { |
| public: |
| // This should only be deleted by the creator (ash::Shell). |
| virtual ~MaximizeModeWindowManager(); |
| |
| // Returns the number of maximized & tracked windows by this manager. |
| int GetNumberOfManagedWindows(); |
| |
| // Adds a window which needs to be maximized. This is used by other window |
| // managers for windows which needs to get tracked due to (upcoming) state |
| // changes. |
| // The call gets ignored if the window was already or should not be handled. |
| void AddWindow(aura::Window* window); |
| |
| // Called from a window state object when it gets destroyed. |
| void WindowStateDestroyed(aura::Window* window); |
| |
| // ShellObserver overrides: |
| virtual void OnOverviewModeStarting() OVERRIDE; |
| virtual void OnOverviewModeEnding() OVERRIDE; |
| |
| // Overridden from WindowObserver: |
| virtual void OnWindowDestroying(aura::Window* window) OVERRIDE; |
| virtual void OnWindowAdded(aura::Window* window) OVERRIDE; |
| virtual void OnWindowBoundsChanged(aura::Window* window, |
| const gfx::Rect& old_bounds, |
| const gfx::Rect& new_bounds) OVERRIDE; |
| |
| // gfx::DisplayObserver overrides: |
| virtual void OnDisplayAdded(const gfx::Display& display) OVERRIDE; |
| virtual void OnDisplayRemoved(const gfx::Display& display) OVERRIDE; |
| virtual void OnDisplayMetricsChanged(const gfx::Display& display, |
| uint32_t metrics) OVERRIDE; |
| |
| // ui::EventHandler override: |
| virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE; |
| |
| protected: |
| friend class MaximizeModeController; |
| |
| // The object should only be created by the ash::Shell. |
| MaximizeModeWindowManager(); |
| |
| private: |
| typedef std::map<aura::Window*, MaximizeModeWindowState*> WindowToState; |
| |
| // Maximize all windows and restore their current state. |
| void MaximizeAllWindows(); |
| |
| // Restore all windows to their previous state. |
| void RestoreAllWindows(); |
| |
| // If the given window should be handled by us, this function will maximize it |
| // and add it to the list of known windows (remembering the initial show |
| // state). |
| // Note: If the given window cannot be handled by us the function will return |
| // immediately. |
| void MaximizeAndTrackWindow(aura::Window* window); |
| |
| // Remove a window from our tracking list. |
| void ForgetWindow(aura::Window* window); |
| |
| // Returns true when the given window should be modified in any way by us. |
| bool ShouldHandleWindow(aura::Window* window); |
| |
| // Add window creation observers to track creation of new windows. |
| void AddWindowCreationObservers(); |
| |
| // Remove Window creation observers. |
| void RemoveWindowCreationObservers(); |
| |
| // Change the internal state (e.g. observers) when the display configuration |
| // changes. |
| void DisplayConfigurationChanged(); |
| |
| // Returns true when the |window| is a container window. |
| bool IsContainerWindow(aura::Window* window); |
| |
| // Add a backdrop behind the currently active window on each desktop. |
| void EnableBackdropBehindTopWindowOnEachDisplay(bool enable); |
| |
| // Every window which got touched by our window manager gets added here. |
| WindowToState window_state_map_; |
| |
| // All container windows which have to be tracked. |
| std::set<aura::Window*> observed_container_windows_; |
| |
| // True if all backdrops are hidden. |
| bool backdrops_hidden_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MaximizeModeWindowManager); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_WINDOW_MANAGER_H_ |