15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef ASH_WM_BASE_LAYOUT_MANAGER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define ASH_WM_BASE_LAYOUT_MANAGER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <set> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/ash_export.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/shell_observer.h" 124e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)#include "ash/wm/window_state_observer.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ui/aura/client/activation_change_observer.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/aura/layout_manager.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/aura/window_observer.h" 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ui/base/ui_base_types.h" 19d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)#include "ui/events/event_handler.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace aura { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Window; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ash { 2668043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles)namespace wm { 2768043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles)class WindowState; 2868043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles)} 2968043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace internal { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// BaseLayoutManager is the simplest possible implementation for a window 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// layout manager. It listens for changes to kShowStateKey and resizes the 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// window appropriately. Subclasses should be sure to invoke the base class 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// for adding and removing windows, otherwise show state will not be tracked 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// properly. 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class ASH_EXPORT BaseLayoutManager 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public aura::LayoutManager, 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public aura::WindowObserver, 4058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) public aura::client::ActivationChangeObserver, 4158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) public ShellObserver, 424e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) public wm::WindowStateObserver { 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef std::set<aura::Window*> WindowSet; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 461e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) explicit BaseLayoutManager(aura::Window* root_window); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~BaseLayoutManager(); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const WindowSet& windows() const { return windows_; } 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Given a |window| and tentative |restore_bounds|, returns new bounds that 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // ensure that at least a few pixels of the screen background are visible 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // outside the edges of the window. 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static gfx::Rect BoundsWithScreenEdgeVisible(aura::Window* window, 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Rect& restore_bounds); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // aura::LayoutManager overrides: 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnWindowResized() OVERRIDE; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnChildWindowVisibilityChanged(aura::Window* child, 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool visible) OVERRIDE; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void SetChildBounds(aura::Window* child, 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Rect& requested_bounds) OVERRIDE; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // aura::WindowObserver overrides: 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnWindowDestroying(aura::Window* window) OVERRIDE; 697d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) virtual void OnWindowBoundsChanged(aura::Window* window, 707d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const gfx::Rect& old_bounds, 717d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const gfx::Rect& new_bounds) OVERRIDE; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // aura::client::ActivationChangeObserver overrides: 742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void OnWindowActivated(aura::Window* gained_active, 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) aura::Window* lost_active) OVERRIDE; 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // ash::ShellObserver overrides: 7858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) virtual void OnDisplayWorkAreaInsetsChanged() OVERRIDE; 7958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 804e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // wm::WindowStateObserver overrides: 814e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) virtual void OnWindowShowTypeChanged(wm::WindowState* window_state, 824e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) wm::WindowShowType type) OVERRIDE; 834e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 85558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch enum AdjustWindowReason { 86bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch ADJUST_WINDOW_DISPLAY_SIZE_CHANGED, 87bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch ADJUST_WINDOW_WORK_AREA_INSETS_CHANGED, 88558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch }; 89558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Invoked from OnWindowPropertyChanged() if |kShowStateKey| changes. 9168043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) virtual void ShowStateChanged(wm::WindowState* window_state, 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ui::WindowShowState last_show_state); 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 94bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch // Adjusts the window's bounds when the display area changes for given 95bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch // window. This happens when the display size, work area insets or 96bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch // the display on which the window exists has changed. 97bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch // If this is called for a display size change (i.e. |reason| 98bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch // is ADJUST_WINDOW_DISPLAY_SIZE_CHANGED), the non-maximized/non-fullscreen 99558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // windows are readjusted to make sure the window is completely within the 100558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // display region. Otherwise, it makes sure at least some parts of the window 101558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // is on display. 102bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch virtual void AdjustAllWindowsBoundsForWorkAreaChange( 103bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch AdjustWindowReason reason); 104558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 105558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // Adjusts the sizes of the specific window in respond to a screen change or 106558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // display-area size change. 10768043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) virtual void AdjustWindowBoundsForWorkAreaChange( 10868043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) wm::WindowState* window_state, 10968043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) AdjustWindowReason reason); 110558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 1111e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) aura::Window* root_window() { return root_window_; } 112558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Update window bounds based on a change in show state. 11568043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) void UpdateBoundsFromShowState(wm::WindowState* controller); 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set of windows we're listening to. 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WindowSet windows_; 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1201e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) aura::Window* root_window_; 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(BaseLayoutManager); 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace internal 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ash 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // ASH_WM_BASE_LAYOUT_MANAGER_H_ 129