default_window_resizer.cc revision 68043e1e95eeb07d5cae7aca370b26518b0867d6 
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#include "ash/wm/default_window_resizer.h"
6
7#include "ash/shell.h"
8#include "ash/wm/window_state.h"
9#include "ui/aura/client/aura_constants.h"
10#include "ui/aura/env.h"
11#include "ui/aura/window.h"
12#include "ui/aura/window_delegate.h"
13#include "ui/base/hit_test.h"
14#include "ui/base/ui_base_types.h"
15#include "ui/gfx/screen.h"
16
17namespace ash {
18
19DefaultWindowResizer::~DefaultWindowResizer() {
20  ash::Shell::GetInstance()->cursor_manager()->UnlockCursor();
21}
22
23// static
24DefaultWindowResizer*
25DefaultWindowResizer::Create(aura::Window* window,
26                             const gfx::Point& location,
27                             int window_component,
28                             aura::client::WindowMoveSource source) {
29  Details details(window, location, window_component, source);
30  return details.is_resizable ? new DefaultWindowResizer(details) : NULL;
31}
32
33void DefaultWindowResizer::Drag(const gfx::Point& location, int event_flags) {
34  gfx::Rect bounds(CalculateBoundsForDrag(details_, location));
35  if (bounds != details_.window->bounds()) {
36    if (!did_move_or_resize_ && !details_.restore_bounds.IsEmpty())
37      wm::GetWindowState(details_.window)->ClearRestoreBounds();
38    did_move_or_resize_ = true;
39    details_.window->SetBounds(bounds);
40  }
41}
42
43void DefaultWindowResizer::CompleteDrag(int event_flags) {
44}
45
46void DefaultWindowResizer::RevertDrag() {
47  if (!did_move_or_resize_)
48    return;
49
50  details_.window->SetBounds(details_.initial_bounds_in_parent);
51
52  if (!details_.restore_bounds.IsEmpty())
53    wm::GetWindowState(details_.window)->SetRestoreBoundsInScreen(
54        details_.restore_bounds);
55}
56
57aura::Window* DefaultWindowResizer::GetTarget() {
58  return details_.window;
59}
60
61const gfx::Point& DefaultWindowResizer::GetInitialLocation() const {
62  return details_.initial_location_in_parent;
63}
64
65DefaultWindowResizer::DefaultWindowResizer(const Details& details)
66    : details_(details),
67      did_move_or_resize_(false) {
68  DCHECK(details_.is_resizable);
69  ash::Shell::GetInstance()->cursor_manager()->LockCursor();
70}
71
72}  // namespace aura
73