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
ContentsWebView(content::BrowserContext * browser_context)16 ContentsWebView::ContentsWebView(content::BrowserContext* browser_context)
17 : views::WebView(browser_context),
18 status_bubble_(NULL) {
19 }
20
~ContentsWebView()21 ContentsWebView::~ContentsWebView() {
22 }
23
SetStatusBubble(StatusBubbleViews * status_bubble)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
GetNeedsNotificationWhenVisibleBoundsChange() const31 bool ContentsWebView::GetNeedsNotificationWhenVisibleBoundsChange() const {
32 return true;
33 }
34
OnVisibleBoundsChanged()35 void ContentsWebView::OnVisibleBoundsChanged() {
36 if (status_bubble_)
37 status_bubble_->Reposition();
38 }
39
ViewHierarchyChanged(const ViewHierarchyChangedDetails & details)40 void ContentsWebView::ViewHierarchyChanged(
41 const ViewHierarchyChangedDetails& details) {
42 WebView::ViewHierarchyChanged(details);
43 if (details.is_add)
44 OnThemeChanged();
45 }
46
OnThemeChanged()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
OnLayerRecreated(ui::Layer * old_layer,ui::Layer * new_layer)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
CloneWebContentsLayer()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
DestroyClonedLayer()105 void ContentsWebView::DestroyClonedLayer() {
106 cloned_layer_tree_.reset();
107 SetPaintToLayer(false);
108 set_layer_owner_delegate(NULL);
109 }
110