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      1 // Copyright 2014 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/drag_details.h"
      6 
      7 #include "ash/wm/window_resizer.h"
      8 #include "ui/aura/window.h"
      9 #include "ui/base/hit_test.h"
     10 
     11 namespace ash {
     12 
     13 namespace {
     14 
     15 int GetSizeChangeDirectionForWindowComponent(int window_component) {
     16   int size_change_direction = WindowResizer::kBoundsChangeDirection_None;
     17   switch (window_component) {
     18     case HTTOPLEFT:
     19     case HTTOPRIGHT:
     20     case HTBOTTOMLEFT:
     21     case HTBOTTOMRIGHT:
     22     case HTGROWBOX:
     23     case HTCAPTION:
     24       size_change_direction |=
     25           WindowResizer::kBoundsChangeDirection_Horizontal |
     26           WindowResizer::kBoundsChangeDirection_Vertical;
     27       break;
     28     case HTTOP:
     29     case HTBOTTOM:
     30       size_change_direction |= WindowResizer::kBoundsChangeDirection_Vertical;
     31       break;
     32     case HTRIGHT:
     33     case HTLEFT:
     34       size_change_direction |= WindowResizer::kBoundsChangeDirection_Horizontal;
     35       break;
     36     default:
     37       break;
     38   }
     39   return size_change_direction;
     40 }
     41 
     42 }  // namespace
     43 
     44 DragDetails::DragDetails(aura::Window* window,
     45                          const gfx::Point& location,
     46                          int window_component,
     47                          aura::client::WindowMoveSource source)
     48     : initial_state_type(wm::GetWindowState(window)->GetStateType()),
     49       initial_bounds_in_parent(window->bounds()),
     50       initial_location_in_parent(location),
     51       initial_opacity(window->layer()->opacity()),
     52       window_component(window_component),
     53       bounds_change(
     54           WindowResizer::GetBoundsChangeForWindowComponent(window_component)),
     55       position_change_direction(
     56           WindowResizer::GetPositionChangeDirectionForWindowComponent(
     57               window_component)),
     58       size_change_direction(
     59           GetSizeChangeDirectionForWindowComponent(window_component)),
     60       is_resizable(bounds_change != WindowResizer::kBoundsChangeDirection_None),
     61       source(source),
     62       should_attach_to_shelf(window->type() == ui::wm::WINDOW_TYPE_PANEL &&
     63                              wm::GetWindowState(window)->panel_attached()) {
     64   wm::WindowState* window_state = wm::GetWindowState(window);
     65   if (window_state->IsNormalOrSnapped() &&
     66       window_state->HasRestoreBounds() &&
     67       window_component == HTCAPTION) {
     68     restore_bounds = window_state->GetRestoreBoundsInScreen();
     69   }
     70 }
     71 
     72 DragDetails::~DragDetails() {
     73 }
     74 
     75 }  // namespace ash
     76