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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 "android_webview/browser/renderer_host/aw_render_view_host_ext.h"
6 
7 #include "android_webview/browser/aw_browser_context.h"
8 #include "android_webview/browser/scoped_allow_wait_for_legacy_web_view_api.h"
9 #include "android_webview/common/render_view_messages.h"
10 #include "base/android/scoped_java_ref.h"
11 #include "base/callback.h"
12 #include "base/command_line.h"
13 #include "base/logging.h"
14 #include "content/public/browser/android/content_view_core.h"
15 #include "content/public/browser/render_process_host.h"
16 #include "content/public/browser/render_view_host.h"
17 #include "content/public/browser/user_metrics.h"
18 #include "content/public/browser/web_contents.h"
19 #include "content/public/common/frame_navigate_params.h"
20 
21 namespace android_webview {
22 
AwRenderViewHostExt(AwRenderViewHostExtClient * client,content::WebContents * contents)23 AwRenderViewHostExt::AwRenderViewHostExt(
24     AwRenderViewHostExtClient* client, content::WebContents* contents)
25     : content::WebContentsObserver(contents),
26       client_(client),
27       background_color_(SK_ColorWHITE),
28       has_new_hit_test_data_(false) {
29   DCHECK(client_);
30 }
31 
~AwRenderViewHostExt()32 AwRenderViewHostExt::~AwRenderViewHostExt() {}
33 
DocumentHasImages(DocumentHasImagesResult result)34 void AwRenderViewHostExt::DocumentHasImages(DocumentHasImagesResult result) {
35   DCHECK(CalledOnValidThread());
36   if (!web_contents()->GetRenderViewHost()) {
37     result.Run(false);
38     return;
39   }
40   static int next_id = 1;
41   int this_id = next_id++;
42   pending_document_has_images_requests_[this_id] = result;
43   Send(new AwViewMsg_DocumentHasImages(web_contents()->GetRoutingID(),
44                                        this_id));
45 }
46 
ClearCache()47 void AwRenderViewHostExt::ClearCache() {
48   DCHECK(CalledOnValidThread());
49   Send(new AwViewMsg_ClearCache);
50 }
51 
HasNewHitTestData() const52 bool AwRenderViewHostExt::HasNewHitTestData() const {
53   return has_new_hit_test_data_;
54 }
55 
MarkHitTestDataRead()56 void AwRenderViewHostExt::MarkHitTestDataRead() {
57   has_new_hit_test_data_ = false;
58 }
59 
RequestNewHitTestDataAt(int view_x,int view_y)60 void AwRenderViewHostExt::RequestNewHitTestDataAt(int view_x, int view_y) {
61   DCHECK(CalledOnValidThread());
62   Send(new AwViewMsg_DoHitTest(web_contents()->GetRoutingID(),
63                                view_x,
64                                view_y));
65 }
66 
GetLastHitTestData() const67 const AwHitTestData& AwRenderViewHostExt::GetLastHitTestData() const {
68   DCHECK(CalledOnValidThread());
69   return last_hit_test_data_;
70 }
71 
SetTextZoomFactor(float factor)72 void AwRenderViewHostExt::SetTextZoomFactor(float factor) {
73   DCHECK(CalledOnValidThread());
74   Send(new AwViewMsg_SetTextZoomFactor(web_contents()->GetRoutingID(), factor));
75 }
76 
ResetScrollAndScaleState()77 void AwRenderViewHostExt::ResetScrollAndScaleState() {
78   DCHECK(CalledOnValidThread());
79   Send(new AwViewMsg_ResetScrollAndScaleState(web_contents()->GetRoutingID()));
80 }
81 
SetInitialPageScale(double page_scale_factor)82 void AwRenderViewHostExt::SetInitialPageScale(double page_scale_factor) {
83   DCHECK(CalledOnValidThread());
84   Send(new AwViewMsg_SetInitialPageScale(web_contents()->GetRoutingID(),
85                                          page_scale_factor));
86 }
87 
SetBackgroundColor(SkColor c)88 void AwRenderViewHostExt::SetBackgroundColor(SkColor c) {
89   if (background_color_ == c)
90     return;
91   background_color_ = c;
92   if (web_contents()->GetRenderViewHost()) {
93     Send(new AwViewMsg_SetBackgroundColor(web_contents()->GetRoutingID(),
94                                           background_color_));
95   }
96 }
97 
SetJsOnlineProperty(bool network_up)98 void AwRenderViewHostExt::SetJsOnlineProperty(bool network_up) {
99   Send(new AwViewMsg_SetJsOnlineProperty(network_up));
100 }
101 
RenderViewCreated(content::RenderViewHost * render_view_host)102 void AwRenderViewHostExt::RenderViewCreated(
103     content::RenderViewHost* render_view_host) {
104   Send(new AwViewMsg_SetBackgroundColor(web_contents()->GetRoutingID(),
105                                         background_color_));
106 }
107 
RenderProcessGone(base::TerminationStatus status)108 void AwRenderViewHostExt::RenderProcessGone(base::TerminationStatus status) {
109   DCHECK(CalledOnValidThread());
110   for (std::map<int, DocumentHasImagesResult>::iterator pending_req =
111            pending_document_has_images_requests_.begin();
112        pending_req != pending_document_has_images_requests_.end();
113       ++pending_req) {
114     pending_req->second.Run(false);
115   }
116 }
117 
DidNavigateAnyFrame(const content::LoadCommittedDetails & details,const content::FrameNavigateParams & params)118 void AwRenderViewHostExt::DidNavigateAnyFrame(
119     const content::LoadCommittedDetails& details,
120     const content::FrameNavigateParams& params) {
121   DCHECK(CalledOnValidThread());
122 
123   AwBrowserContext::FromWebContents(web_contents())
124       ->AddVisitedURLs(params.redirects);
125 }
126 
OnMessageReceived(const IPC::Message & message)127 bool AwRenderViewHostExt::OnMessageReceived(const IPC::Message& message) {
128   bool handled = true;
129   IPC_BEGIN_MESSAGE_MAP(AwRenderViewHostExt, message)
130     IPC_MESSAGE_HANDLER(AwViewHostMsg_DocumentHasImagesResponse,
131                         OnDocumentHasImagesResponse)
132     IPC_MESSAGE_HANDLER(AwViewHostMsg_UpdateHitTestData,
133                         OnUpdateHitTestData)
134     IPC_MESSAGE_HANDLER(AwViewHostMsg_PageScaleFactorChanged,
135                         OnPageScaleFactorChanged)
136     IPC_MESSAGE_HANDLER(AwViewHostMsg_OnContentsSizeChanged,
137                         OnContentsSizeChanged)
138     IPC_MESSAGE_UNHANDLED(handled = false)
139   IPC_END_MESSAGE_MAP()
140 
141   return handled ? true : WebContentsObserver::OnMessageReceived(message);
142 }
143 
OnDocumentHasImagesResponse(int msg_id,bool has_images)144 void AwRenderViewHostExt::OnDocumentHasImagesResponse(int msg_id,
145                                                       bool has_images) {
146   DCHECK(CalledOnValidThread());
147   std::map<int, DocumentHasImagesResult>::iterator pending_req =
148       pending_document_has_images_requests_.find(msg_id);
149   if (pending_req == pending_document_has_images_requests_.end()) {
150     DLOG(WARNING) << "unexpected DocumentHasImages Response: " << msg_id;
151   } else {
152     pending_req->second.Run(has_images);
153     pending_document_has_images_requests_.erase(pending_req);
154   }
155 }
156 
OnUpdateHitTestData(const AwHitTestData & hit_test_data)157 void AwRenderViewHostExt::OnUpdateHitTestData(
158     const AwHitTestData& hit_test_data) {
159   DCHECK(CalledOnValidThread());
160   last_hit_test_data_ = hit_test_data;
161   has_new_hit_test_data_ = true;
162 }
163 
OnPageScaleFactorChanged(float page_scale_factor)164 void AwRenderViewHostExt::OnPageScaleFactorChanged(float page_scale_factor) {
165   client_->OnWebLayoutPageScaleFactorChanged(page_scale_factor);
166 }
167 
OnContentsSizeChanged(const gfx::Size & contents_size)168 void AwRenderViewHostExt::OnContentsSizeChanged(
169     const gfx::Size& contents_size) {
170   client_->OnWebLayoutContentsSizeChanged(contents_size);
171 }
172 
173 }  // namespace android_webview
174