15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/wm/screen_dimmer.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/shell.h" 8eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/time/time.h" 9a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#include "ui/aura/window_event_dispatcher.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/layer.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/scoped_layer_animation_settings.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/rect.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/size.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ash { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Opacity for |dimming_layer_| when it's dimming the screen. 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const float kDimmingLayerOpacity = 0.4f; 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Duration for dimming animations, in milliseconds. 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const int kDimmingTransitionMs = 200; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 26f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)ScreenDimmer::ScreenDimmer(aura::Window* root_window) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : root_window_(root_window), 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) currently_dimming_(false) { 297d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) root_window_->AddObserver(this); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScreenDimmer::~ScreenDimmer() { 337d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) root_window_->RemoveObserver(this); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScreenDimmer::SetDimming(bool should_dim) { 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (should_dim == currently_dimming_) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 40c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!dimming_layer_) { 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dimming_layer_.reset(new ui::Layer(ui::LAYER_SOLID_COLOR)); 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dimming_layer_->SetColor(SK_ColorBLACK); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dimming_layer_->SetOpacity(0.0f); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ui::Layer* root_layer = root_window_->layer(); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dimming_layer_->SetBounds(root_layer->bounds()); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer->Add(dimming_layer_.get()); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer->StackAtTop(dimming_layer_.get()); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) currently_dimming_ = should_dim; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ui::ScopedLayerAnimationSettings scoped_settings( 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dimming_layer_->GetAnimator()); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_settings.SetTransitionDuration( 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta::FromMilliseconds(kDimmingTransitionMs)); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dimming_layer_->SetOpacity(should_dim ? kDimmingLayerOpacity : 0.0f); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 597d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)void ScreenDimmer::OnWindowBoundsChanged(aura::Window* root, 607d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const gfx::Rect& old_bounds, 617d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const gfx::Rect& new_bounds) { 62c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (dimming_layer_) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dimming_layer_->SetBounds(gfx::Rect(root->bounds().size())); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ash 67