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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/property_util.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(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 
     33 void 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       ClearRestoreBounds(details_.window);
     38     did_move_or_resize_ = true;
     39     details_.window->SetBounds(bounds);
     40   }
     41 }
     42 
     43 void DefaultWindowResizer::CompleteDrag(int event_flags) {
     44 }
     45 
     46 void 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     SetRestoreBoundsInScreen(details_.window, details_.restore_bounds);
     54 }
     55 
     56 aura::Window* DefaultWindowResizer::GetTarget() {
     57   return details_.window;
     58 }
     59 
     60 const gfx::Point& DefaultWindowResizer::GetInitialLocation() const {
     61   return details_.initial_location_in_parent;
     62 }
     63 
     64 DefaultWindowResizer::DefaultWindowResizer(const Details& details)
     65     : details_(details),
     66       did_move_or_resize_(false) {
     67   DCHECK(details_.is_resizable);
     68   ash::Shell::GetInstance()->cursor_manager()->LockCursor();
     69 }
     70 
     71 }  // namespace aura
     72