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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/renderer/chrome_render_frame_observer.h" | 5 #include "chrome/renderer/chrome_render_frame_observer.h" |
6 | 6 |
7 #include "base/strings/string_split.h" | |
8 #include "base/strings/utf_string_conversions.h" | 7 #include "base/strings/utf_string_conversions.h" |
9 #include "chrome/common/prerender_messages.h" | 8 #include "chrome/common/prerender_messages.h" |
10 #include "chrome/common/print_messages.h" | 9 #include "chrome/common/print_messages.h" |
11 #include "chrome/common/render_messages.h" | 10 #include "chrome/common/render_messages.h" |
12 #include "chrome/renderer/prerender/prerender_helper.h" | 11 #include "chrome/renderer/prerender/prerender_helper.h" |
13 #include "chrome/renderer/printing/print_web_view_helper.h" | 12 #include "chrome/renderer/printing/print_web_view_helper.h" |
14 #include "content/public/renderer/render_frame.h" | 13 #include "content/public/renderer/render_frame.h" |
15 #include "extensions/common/stack_frame.h" | |
16 #include "skia/ext/image_operations.h" | 14 #include "skia/ext/image_operations.h" |
17 #include "skia/ext/platform_canvas.h" | 15 #include "skia/ext/platform_canvas.h" |
18 #include "third_party/WebKit/public/platform/WebImage.h" | 16 #include "third_party/WebKit/public/platform/WebImage.h" |
19 #include "third_party/WebKit/public/web/WebElement.h" | 17 #include "third_party/WebKit/public/web/WebElement.h" |
20 #include "third_party/WebKit/public/web/WebFrame.h" | 18 #include "third_party/WebKit/public/web/WebFrame.h" |
21 #include "third_party/WebKit/public/web/WebNode.h" | 19 #include "third_party/WebKit/public/web/WebNode.h" |
22 | 20 |
23 using blink::WebElement; | 21 using blink::WebElement; |
24 using blink::WebNode; | 22 using blink::WebNode; |
25 | 23 |
26 namespace { | 24 namespace { |
27 // The delimiter for a stack trace provided by WebKit. | |
28 const char kStackFrameDelimiter[] = "\n at "; | |
29 | |
30 // Get a stack trace from a WebKit console message. | |
31 // There are three possible scenarios: | |
32 // 1. WebKit gives us a stack trace in |stack_trace|. | |
33 // 2. The stack trace is embedded in the error |message| by an internal | |
34 // script. This will be more useful than |stack_trace|, since |stack_trace| | |
35 // will include the internal bindings trace, instead of a developer's code. | |
36 // 3. No stack trace is included. In this case, we should mock one up from | |
37 // the given line number and source. | |
38 // |message| will be populated with the error message only (i.e., will not | |
39 // include any stack trace). | |
40 extensions::StackTrace GetStackTraceFromMessage( | |
41 base::string16* message, | |
42 const base::string16& source, | |
43 const base::string16& stack_trace, | |
44 int32 line_number) { | |
45 extensions::StackTrace result; | |
46 std::vector<base::string16> pieces; | |
47 size_t index = 0; | |
48 | |
49 if (message->find(base::UTF8ToUTF16(kStackFrameDelimiter)) != | |
50 base::string16::npos) { | |
51 base::SplitStringUsingSubstr(*message, | |
52 base::UTF8ToUTF16(kStackFrameDelimiter), | |
53 &pieces); | |
54 *message = pieces[0]; | |
55 index = 1; | |
56 } else if (!stack_trace.empty()) { | |
57 base::SplitStringUsingSubstr(stack_trace, | |
58 base::UTF8ToUTF16(kStackFrameDelimiter), | |
59 &pieces); | |
60 } | |
61 | |
62 // If we got a stack trace, parse each frame from the text. | |
63 if (index < pieces.size()) { | |
64 for (; index < pieces.size(); ++index) { | |
65 scoped_ptr<extensions::StackFrame> frame = | |
66 extensions::StackFrame::CreateFromText(pieces[index]); | |
67 if (frame.get()) | |
68 result.push_back(*frame); | |
69 } | |
70 } | |
71 | |
72 if (result.empty()) { // If we don't have a stack trace, mock one up. | |
73 result.push_back( | |
74 extensions::StackFrame(line_number, | |
75 1u, // column number | |
76 source, | |
77 base::string16() /* no function name */ )); | |
78 } | |
79 | |
80 return result; | |
81 } | |
82 | 25 |
83 // If the source image is null or occupies less area than | 26 // If the source image is null or occupies less area than |
84 // |thumbnail_min_area_pixels|, we return the image unmodified. Otherwise, we | 27 // |thumbnail_min_area_pixels|, we return the image unmodified. Otherwise, we |
85 // scale down the image so that the width and height do not exceed | 28 // scale down the image so that the width and height do not exceed |
86 // |thumbnail_max_size_pixels|, preserving the original aspect ratio. | 29 // |thumbnail_max_size_pixels|, preserving the original aspect ratio. |
87 SkBitmap Downscale(blink::WebImage image, | 30 SkBitmap Downscale(blink::WebImage image, |
88 int thumbnail_min_area_pixels, | 31 int thumbnail_min_area_pixels, |
89 gfx::Size thumbnail_max_size_pixels) { | 32 gfx::Size thumbnail_max_size_pixels) { |
90 if (image.isNull()) | 33 if (image.isNull()) |
91 return SkBitmap(); | 34 return SkBitmap(); |
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148 } | 91 } |
149 | 92 |
150 void ChromeRenderFrameObserver::DidChangeName( | 93 void ChromeRenderFrameObserver::DidChangeName( |
151 const base::string16& name) { | 94 const base::string16& name) { |
152 Send(new ChromeViewHostMsg_UpdateFrameName( | 95 Send(new ChromeViewHostMsg_UpdateFrameName( |
153 routing_id(), | 96 routing_id(), |
154 !render_frame()->GetWebFrame()->parent(), | 97 !render_frame()->GetWebFrame()->parent(), |
155 base::UTF16ToUTF8(name))); | 98 base::UTF16ToUTF8(name))); |
156 } | 99 } |
157 | 100 |
158 void ChromeRenderFrameObserver::DetailedConsoleMessageAdded( | |
159 const base::string16& message, | |
160 const base::string16& source, | |
161 const base::string16& stack_trace_string, | |
162 int32 line_number, | |
163 int32 severity_level) { | |
164 base::string16 trimmed_message = message; | |
165 extensions::StackTrace stack_trace = GetStackTraceFromMessage( | |
166 &trimmed_message, | |
167 source, | |
168 stack_trace_string, | |
169 line_number); | |
170 Send(new ChromeViewHostMsg_DetailedConsoleMessageAdded( | |
171 routing_id(), trimmed_message, source, stack_trace, severity_level)); | |
172 } | |
173 | |
174 void ChromeRenderFrameObserver::OnSetIsPrerendering(bool is_prerendering) { | 101 void ChromeRenderFrameObserver::OnSetIsPrerendering(bool is_prerendering) { |
175 if (is_prerendering) { | 102 if (is_prerendering) { |
176 // If the PrerenderHelper for this frame already exists, don't create it. It | 103 // If the PrerenderHelper for this frame already exists, don't create it. It |
177 // can already be created for subframes during handling of | 104 // can already be created for subframes during handling of |
178 // RenderFrameCreated, if the parent frame was prerendering at time of | 105 // RenderFrameCreated, if the parent frame was prerendering at time of |
179 // subframe creation. | 106 // subframe creation. |
180 if (prerender::PrerenderHelper::Get(render_frame())) | 107 if (prerender::PrerenderHelper::Get(render_frame())) |
181 return; | 108 return; |
182 | 109 |
183 // The PrerenderHelper will destroy itself either after recording histograms | 110 // The PrerenderHelper will destroy itself either after recording histograms |
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202 Send(new ChromeViewHostMsg_RequestThumbnailForContextNode_ACK( | 129 Send(new ChromeViewHostMsg_RequestThumbnailForContextNode_ACK( |
203 routing_id(), thumbnail, original_size)); | 130 routing_id(), thumbnail, original_size)); |
204 } | 131 } |
205 | 132 |
206 void ChromeRenderFrameObserver::OnPrintNodeUnderContextMenu() { | 133 void ChromeRenderFrameObserver::OnPrintNodeUnderContextMenu() { |
207 printing::PrintWebViewHelper* helper = | 134 printing::PrintWebViewHelper* helper = |
208 printing::PrintWebViewHelper::Get(render_frame()->GetRenderView()); | 135 printing::PrintWebViewHelper::Get(render_frame()->GetRenderView()); |
209 if (helper) | 136 if (helper) |
210 helper->PrintNode(render_frame()->GetContextMenuNode()); | 137 helper->PrintNode(render_frame()->GetContextMenuNode()); |
211 } | 138 } |
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