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) 5a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#include "ui/wm/core/shadow.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#include "third_party/skia/include/core/SkBitmap.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/base/resource/resource_bundle.h" 9116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#include "ui/compositor/layer.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/scoped_layer_animation_settings.h" 1103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)#include "ui/resources/grit/ui_resources.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Shadow opacity for different styles. 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const float kActiveShadowOpacity = 1.0f; 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const float kInactiveShadowOpacity = 0.2f; 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const float kSmallShadowOpacity = 1.0f; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 20116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch// Shadow aperture for different styles. 21116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch// Note that this may be greater than interior inset to allow shadows with 22116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch// curved corners that extend inwards beyond a window's borders. 23116680a4aac90f2aa7413d9095a592090648e557Ben Murdochconst int kActiveInteriorAperture = 134; 24116680a4aac90f2aa7413d9095a592090648e557Ben Murdochconst int kInactiveInteriorAperture = 134; 25116680a4aac90f2aa7413d9095a592090648e557Ben Murdochconst int kSmallInteriorAperture = 9; 26116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 27c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Interior inset for different styles. 28116680a4aac90f2aa7413d9095a592090648e557Ben Murdochconst int kActiveInteriorInset = 64; 29116680a4aac90f2aa7413d9095a592090648e557Ben Murdochconst int kInactiveInteriorInset = 64; 30116680a4aac90f2aa7413d9095a592090648e557Ben Murdochconst int kSmallInteriorInset = 4; 31c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Duration for opacity animation in milliseconds. 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const int kShadowAnimationDurationMs = 100; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 35a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)float GetOpacityForStyle(wm::Shadow::Style style) { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (style) { 37a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) case wm::Shadow::STYLE_ACTIVE: 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return kActiveShadowOpacity; 39a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) case wm::Shadow::STYLE_INACTIVE: 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return kInactiveShadowOpacity; 41a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) case wm::Shadow::STYLE_SMALL: 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return kSmallShadowOpacity; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 1.0f; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 47116680a4aac90f2aa7413d9095a592090648e557Ben Murdochint GetShadowApertureForStyle(wm::Shadow::Style style) { 48116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch switch (style) { 49116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch case wm::Shadow::STYLE_ACTIVE: 50116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return kActiveInteriorAperture; 51116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch case wm::Shadow::STYLE_INACTIVE: 52116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return kInactiveInteriorAperture; 53116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch case wm::Shadow::STYLE_SMALL: 54116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return kSmallInteriorAperture; 55116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 56116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return 0; 57116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 58116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 59a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)int GetInteriorInsetForStyle(wm::Shadow::Style style) { 60c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) switch (style) { 61a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) case wm::Shadow::STYLE_ACTIVE: 62c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return kActiveInteriorInset; 63a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) case wm::Shadow::STYLE_INACTIVE: 64c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return kInactiveInteriorInset; 65a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) case wm::Shadow::STYLE_SMALL: 66c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return kSmallInteriorInset; 67c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 68c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return 0; 69c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 70c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 73a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)namespace wm { 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)Shadow::Shadow() : style_(STYLE_ACTIVE), interior_inset_(0) { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Shadow::~Shadow() { 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Shadow::Init(Style style) { 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) style_ = style; 83116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 845f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) layer_.reset(new ui::Layer(ui::LAYER_NOT_DRAWN)); 855f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_.reset(new ui::Layer(ui::LAYER_NINE_PATCH)); 865f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) layer()->Add(shadow_layer_.get()); 875f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UpdateImagesForStyle(); 895f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->set_name("Shadow"); 905f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetVisible(true); 915f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetFillsBoundsOpaquely(false); 925f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetOpacity(GetOpacityForStyle(style_)); 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Shadow::SetContentBounds(const gfx::Rect& content_bounds) { 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content_bounds_ = content_bounds; 97116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch UpdateLayerBounds(); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Shadow::SetStyle(Style style) { 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (style_ == style) 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Style old_style = style_; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) style_ = style; 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Stop waiting for any as yet unfinished implicit animations. 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StopObservingImplicitAnimations(); 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If we're switching to or from the small style, don't bother with 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // animations. 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (style == STYLE_SMALL || old_style == STYLE_SMALL) { 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UpdateImagesForStyle(); 1145f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetOpacity(GetOpacityForStyle(style)); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If we're becoming active, switch images now. Because the inactive image 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // has a very low opacity the switch isn't noticeable and this approach 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // allows us to use only a single set of shadow images at a time. 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (style == STYLE_ACTIVE) { 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UpdateImagesForStyle(); 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Opacity was baked into inactive image, start opacity low to match. 1245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetOpacity(kInactiveShadowOpacity); 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Property sets within this scope will be implicitly animated. 1295f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) ui::ScopedLayerAnimationSettings settings(shadow_layer_->GetAnimator()); 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) settings.AddObserver(this); 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) settings.SetTransitionDuration( 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta::FromMilliseconds(kShadowAnimationDurationMs)); 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (style_) { 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case STYLE_ACTIVE: 1355f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetOpacity(kActiveShadowOpacity); 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case STYLE_INACTIVE: 1385f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetOpacity(kInactiveShadowOpacity); 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED() << "Unhandled style " << style_; 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Shadow::OnImplicitAnimationsCompleted() { 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If we just finished going inactive, switch images. This doesn't cause 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // a visual pop because the inactive image opacity is so low. 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (style_ == STYLE_INACTIVE) { 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UpdateImagesForStyle(); 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Opacity is baked into inactive image, so set fully opaque. 1535f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetOpacity(1.0f); 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Shadow::UpdateImagesForStyle() { 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ResourceBundle& res = ResourceBundle::GetSharedInstance(); 159116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch gfx::Image image; 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (style_) { 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case STYLE_ACTIVE: 162116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch image = res.GetImageNamed(IDR_AURA_SHADOW_ACTIVE); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case STYLE_INACTIVE: 165116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch image = res.GetImageNamed(IDR_AURA_SHADOW_INACTIVE); 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case STYLE_SMALL: 168116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch image = res.GetImageNamed(IDR_WINDOW_BUBBLE_SHADOW_SMALL); 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED() << "Unhandled style " << style_; 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1751320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci shadow_layer_->UpdateNinePatchLayerBitmap(image.AsBitmap()); 1761320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci image_size_ = image.Size(); 177c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) interior_inset_ = GetInteriorInsetForStyle(style_); 178c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Image sizes may have changed. 180116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch UpdateLayerBounds(); 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 183116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid Shadow::UpdateLayerBounds() { 184116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Update bounds based on content bounds and interior inset. 185116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch gfx::Rect layer_bounds = content_bounds_; 186116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch layer_bounds.Inset(-interior_inset_, -interior_inset_); 187116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch layer()->SetBounds(layer_bounds); 1885f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) shadow_layer_->SetBounds(gfx::Rect(layer_bounds.size())); 189116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 1901320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci // Update the shadow aperture and border for style. Note that border is in 1911320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci // layer space and it cannot exceed the bounds of the layer. 1921320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci int aperture = GetShadowApertureForStyle(style_); 1931320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci int aperture_x = std::min(aperture, layer_bounds.width() / 2); 1941320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci int aperture_y = std::min(aperture, layer_bounds.height() / 2); 1951320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci shadow_layer_->UpdateNinePatchLayerAperture( 1961320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci gfx::Rect(aperture_x, aperture_y, 1971320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci image_size_.width() - aperture_x * 2, 1981320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci image_size_.height() - aperture_y * 2)); 1991320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci shadow_layer_->UpdateNinePatchLayerBorder( 2001320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci gfx::Rect(aperture_x, aperture_y, aperture_x * 2, aperture_y * 2)); 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 203a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} // namespace wm 204