ash/wm/workspace_controller.cc

   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/workspace_controller.h"
   6
   7 #include "ash/shelf/shelf_layout_manager.h"
   8 #include "ash/shell.h"
   9 #include "ash/shell_window_ids.h"
  10 #include "ash/wm/base_layout_manager.h"
  11 #include "ash/wm/window_animations.h"
  12 #include "ash/wm/window_state.h"
  13 #include "ash/wm/window_util.h"
  14 #include "ash/wm/workspace/workspace_event_handler.h"
  15 #include "ash/wm/workspace/workspace_layout_manager.h"
  16 #include "ui/aura/client/activation_client.h"
  17 #include "ui/aura/client/aura_constants.h"
  18 #include "ui/aura/root_window.h"
  19 #include "ui/aura/window.h"
  20 #include "ui/compositor/layer.h"
  21 #include "ui/compositor/scoped_layer_animation_settings.h"
  22 #include "ui/views/corewm/visibility_controller.h"
  23 #include "ui/views/corewm/window_animations.h"
  24
  25 namespace ash {
  26 namespace internal {
  27 namespace {
  28
  29 // Amount of time to pause before animating anything. Only used during initial
  30 // animation (when logging in).
  31 const int kInitialPauseTimeMS = 750;
  32
  33 }  // namespace
  34
  35 WorkspaceController::WorkspaceController(aura::Window* viewport)
  36     : viewport_(viewport),
  37       shelf_(NULL),
  38       event_handler_(new WorkspaceEventHandler(viewport_)) {
  39   SetWindowVisibilityAnimationTransition(
  40       viewport_, views::corewm::ANIMATE_NONE);
  41
  42   // The layout-manager cannot be created in the initializer list since it
  43   // depends on the window to have been initialized.
  44   layout_manager_ = new WorkspaceLayoutManager(viewport_);
  45   viewport_->SetLayoutManager(layout_manager_);
  46
  47   viewport_->Show();
  48 }
  49
  50 WorkspaceController::~WorkspaceController() {
  51   viewport_->SetLayoutManager(NULL);
  52   viewport_->SetEventFilter(NULL);
  53   viewport_->RemovePreTargetHandler(event_handler_.get());
  54   viewport_->RemovePostTargetHandler(event_handler_.get());
  55 }
  56
  57 WorkspaceWindowState WorkspaceController::GetWindowState() const {
  58   if (!shelf_)
  59     return WORKSPACE_WINDOW_STATE_DEFAULT;
  60
  61   const gfx::Rect shelf_bounds(shelf_->GetIdealBounds());
  62   const aura::Window::Windows& windows(viewport_->children());
  63   bool window_overlaps_launcher = false;
  64   bool has_maximized_window = false;
  65   for (aura::Window::Windows::const_iterator i = windows.begin();
  66        i != windows.end(); ++i) {
  67     wm::WindowState* window_state = wm::GetWindowState(*i);
  68     if (window_state->ignored_by_shelf())
  69       continue;
  70     ui::Layer* layer = (*i)->layer();
  71     if (!layer->GetTargetVisibility() || layer->GetTargetOpacity() == 0.0f)
  72       continue;
  73     if (window_state->IsMaximized()) {
  74       // An untracked window may still be fullscreen so we keep iterating when
  75       // we hit a maximized window.
  76       has_maximized_window = true;
  77     } else if (window_state->IsFullscreen()) {
  78       return WORKSPACE_WINDOW_STATE_FULL_SCREEN;
  79     }
  80     if (!window_overlaps_launcher && (*i)->bounds().Intersects(shelf_bounds))
  81       window_overlaps_launcher = true;
  82   }
  83   if (has_maximized_window)
  84     return WORKSPACE_WINDOW_STATE_MAXIMIZED;
  85
  86   return window_overlaps_launcher ?
  87       WORKSPACE_WINDOW_STATE_WINDOW_OVERLAPS_SHELF :
  88       WORKSPACE_WINDOW_STATE_DEFAULT;
  89 }
  90
  91 void WorkspaceController::SetShelf(ShelfLayoutManager* shelf) {
  92   shelf_ = shelf;
  93   layout_manager_->SetShelf(shelf);
  94 }
  95
  96 void WorkspaceController::DoInitialAnimation() {
  97   viewport_->Show();
  98
  99   viewport_->layer()->SetOpacity(0.0f);
 100   SetTransformForScaleAnimation(
 101       viewport_->layer(), LAYER_SCALE_ANIMATION_ABOVE);
 102
 103   // In order for pause to work we need to stop animations.
 104   viewport_->layer()->GetAnimator()->StopAnimating();
 105
 106   {
 107     ui::ScopedLayerAnimationSettings settings(
 108         viewport_->layer()->GetAnimator());
 109
 110     settings.SetPreemptionStrategy(ui::LayerAnimator::ENQUEUE_NEW_ANIMATION);
 111     viewport_->layer()->GetAnimator()->SchedulePauseForProperties(
 112         base::TimeDelta::FromMilliseconds(kInitialPauseTimeMS),
 113         ui::LayerAnimationElement::TRANSFORM,
 114         ui::LayerAnimationElement::OPACITY,
 115         ui::LayerAnimationElement::BRIGHTNESS,
 116         ui::LayerAnimationElement::VISIBILITY,
 117         -1);
 118
 119     settings.SetTweenType(gfx::Tween::EASE_OUT);
 120     settings.SetTransitionDuration(
 121         base::TimeDelta::FromMilliseconds(kCrossFadeDurationMS));
 122     viewport_->layer()->SetTransform(gfx::Transform());
 123     viewport_->layer()->SetOpacity(1.0f);
 124   }
 125 }
 126
 127 }  // namespace internal
 128 }  // namespace ash