ash/wm/drag_details.cc

   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() || window_state->IsDocked()) &&
  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