blob: 4f3d6fd646db7dda0dce881ca60c49457e480e68 [file] [log] [blame]
// 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.
#include "ash/wm/window_state.h"
#include "base/macros.h"
namespace ash {
// The LockWindowState implementation which reduces all possible window
// states to maximized (or normal if can't be maximized)/minimized/full-screen
// and is applied only on lock (login) window container and window containers
// associated with apps handling lock screen tray actions.
// LockWindowState implements Ash behavior without state machine.
class LockWindowState : public wm::WindowState::State {
// The |window|'s state object will be modified to use this new window mode
// state handler.
// |exclude_shelf| - if set, the maximized window size will be
// restricted to work area defined by ash shelf, rather than taking only
// virtual keyboard window into consideration when calculating the window
// size.
LockWindowState(aura::Window* window, bool exclude_shelf);
~LockWindowState() override;
// WindowState::State overrides:
void OnWMEvent(wm::WindowState* window_state,
const wm::WMEvent* event) override;
WindowStateType GetType() const override;
void AttachState(wm::WindowState* window_state,
wm::WindowState::State* previous_state) override;
void DetachState(wm::WindowState* window_state) override;
// Creates new LockWindowState instance and attaches it to |window|.
static wm::WindowState* SetLockWindowState(aura::Window* window);
static wm::WindowState* SetLockWindowStateWithShelfExcluded(
aura::Window* window);
// Updates the window to |new_state_type| and resulting bounds:
// Either full screen, maximized centered or minimized. If the state does not
// change, only the bounds will be changed.
void UpdateWindow(wm::WindowState* window_state,
WindowStateType new_state_type);
// Depending on the capabilities of the window we either return
// |WindowStateType::kMaximized| or |WindowStateType::kNormal|.
WindowStateType GetMaximizedOrCenteredWindowType(
wm::WindowState* window_state);
// Returns boudns to be used for the provided window.
gfx::Rect GetWindowBounds(aura::Window* window);
// Updates the bounds taking virtual keyboard bounds into consideration.
void UpdateBounds(wm::WindowState* window_state);
// The current state type. Due to the nature of this state, this can only be
WindowStateType current_state_type_;
// Restrict window size to the work area defined by the shelf - i.e. window
// bounds exclude system shelf bounds.
bool exclude_shelf_ = false;
} // namespace ash