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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 #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 
     17 namespace ash {
     18 
     19 DefaultWindowResizer::~DefaultWindowResizer() {
     20   ash::Shell::GetInstance()->cursor_manager()->UnlockCursor();
     21 }
     22 
     23 // static
     24 DefaultWindowResizer*
     25 DefaultWindowResizer::Create(wm::WindowState* window_state) {
     26   return new DefaultWindowResizer(window_state);
     27 }
     28 
     29 void DefaultWindowResizer::Drag(const gfx::Point& location, int event_flags) {
     30   gfx::Rect bounds(CalculateBoundsForDrag(location));
     31   if (bounds != GetTarget()->bounds()) {
     32     if (!did_move_or_resize_ && !details().restore_bounds.IsEmpty())
     33       window_state_->ClearRestoreBounds();
     34     did_move_or_resize_ = true;
     35     GetTarget()->SetBounds(bounds);
     36   }
     37 }
     38 
     39 void DefaultWindowResizer::CompleteDrag() {
     40 }
     41 
     42 void DefaultWindowResizer::RevertDrag() {
     43   if (!did_move_or_resize_)
     44     return;
     45 
     46   GetTarget()->SetBounds(details().initial_bounds_in_parent);
     47 
     48   if (!details().restore_bounds.IsEmpty())
     49     window_state_->SetRestoreBoundsInScreen(details().restore_bounds);
     50 }
     51 
     52 DefaultWindowResizer::DefaultWindowResizer(wm::WindowState* window_state)
     53     : WindowResizer(window_state),
     54       did_move_or_resize_(false) {
     55   DCHECK(details().is_resizable);
     56   ash::Shell::GetInstance()->cursor_manager()->LockCursor();
     57 }
     58 
     59 }  // namespace aura
     60