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 "chrome/browser/ui/views/frame/contents_web_view.h" 6 7 #include "chrome/browser/themes/theme_properties.h" 8 #include "chrome/browser/ui/views/status_bubble_views.h" 9 #include "content/public/browser/web_contents.h" 10 #include "ui/aura/window.h" 11 #include "ui/base/theme_provider.h" 12 #include "ui/compositor/layer_tree_owner.h" 13 #include "ui/views/background.h" 14 #include "ui/wm/core/window_util.h" 15 16 ContentsWebView::ContentsWebView(content::BrowserContext* browser_context) 17 : views::WebView(browser_context), 18 status_bubble_(NULL) { 19 } 20 21 ContentsWebView::~ContentsWebView() { 22 } 23 24 void ContentsWebView::SetStatusBubble(StatusBubbleViews* status_bubble) { 25 status_bubble_ = status_bubble; 26 DCHECK(!status_bubble_ || status_bubble_->base_view() == this); 27 if (status_bubble_) 28 status_bubble_->Reposition(); 29 } 30 31 bool ContentsWebView::NeedsNotificationWhenVisibleBoundsChange() const { 32 return true; 33 } 34 35 void ContentsWebView::OnVisibleBoundsChanged() { 36 if (status_bubble_) 37 status_bubble_->Reposition(); 38 } 39 40 void ContentsWebView::ViewHierarchyChanged( 41 const ViewHierarchyChangedDetails& details) { 42 WebView::ViewHierarchyChanged(details); 43 if (details.is_add) 44 OnThemeChanged(); 45 } 46 47 void ContentsWebView::OnThemeChanged() { 48 ui::ThemeProvider* const theme = GetThemeProvider(); 49 if (!theme) 50 return; 51 52 // Set the background color to a dark tint of the new tab page's background 53 // color. This is the color filled within the WebView's bounds when its child 54 // view is sized specially for fullscreen tab capture. See WebView header 55 // file comments for more details. 56 const int kBackgroundBrightness = 0x33; // 20% 57 const SkColor ntp_background = 58 theme->GetColor(ThemeProperties::COLOR_NTP_BACKGROUND); 59 set_background(views::Background::CreateSolidBackground( 60 SkColorGetR(ntp_background) * kBackgroundBrightness / 0xFF, 61 SkColorGetG(ntp_background) * kBackgroundBrightness / 0xFF, 62 SkColorGetB(ntp_background) * kBackgroundBrightness / 0xFF, 63 SkColorGetA(ntp_background))); 64 } 65 66 void ContentsWebView::OnLayerRecreated(ui::Layer* old_layer, 67 ui::Layer* new_layer) { 68 if (!cloned_layer_tree_) 69 return; 70 71 // Our layer has been recreated and we have a clone of the WebContents 72 // layer. Combined this means we're about to be destroyed and an animation is 73 // in effect. The animation cloned our layer, but it won't create another 74 // clone of the WebContents layer (|cloned_layer_tree_|). Another clone 75 // is not created as the clone has no owner (see CloneChildren()). Because we 76 // want the WebContents layer clone to be animated we move it to the 77 // old_layer, which is the layer the animation happens on. This animation ends 78 // up owning the layer (and all its descendants). 79 old_layer->Add(cloned_layer_tree_->release()); 80 cloned_layer_tree_.reset(); 81 } 82 83 void ContentsWebView::CloneWebContentsLayer() { 84 if (!web_contents()) 85 return; 86 cloned_layer_tree_ = wm::RecreateLayers(web_contents()->GetNativeView()); 87 if (!cloned_layer_tree_ || !cloned_layer_tree_->root()) { 88 cloned_layer_tree_.reset(); 89 return; 90 } 91 92 SetPaintToLayer(true); 93 set_layer_owner_delegate(this); 94 95 // The cloned layer is in a different coordinate system them our layer (which 96 // is now the new parent of the cloned layer). Convert coordinates so that the 97 // cloned layer appears at the right location. 98 gfx::Point origin; 99 ui::Layer::ConvertPointToLayer(cloned_layer_tree_->root(), layer(), &origin); 100 cloned_layer_tree_->root()->SetBounds( 101 gfx::Rect(origin, cloned_layer_tree_->root()->bounds().size())); 102 layer()->Add(cloned_layer_tree_->root()); 103 } 104 105 void ContentsWebView::DestroyClonedLayer() { 106 cloned_layer_tree_.reset(); 107 SetPaintToLayer(false); 108 set_layer_owner_delegate(NULL); 109 } 110