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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/160202">160202</a></dd>
<dt>Author</dt> <dd>commit-queue@webkit.org</dd>
<dt>Date</dt> <dd>2013-12-05 16:57:43 -0800 (Thu, 05 Dec 2013)</dd>
</dl>
<h3>Log Message</h3>
<pre>Web Inspector: expose node and frame snapshot capabilities.
https://bugs.webkit.org/show_bug.cgi?id=124326
Patch by Brian J. Burg <burg@cs.washington.edu> on 2013-12-05
Reviewed by Joseph Pecoraro.
Source/WebCore:
This adds snapshotRect() and snapshotNode() to the Page domain.
Both methods create snapshots using FrameSnapshotting APIs
and send images to the inspector frontend as a data URL.
Remove the unimplemented Page.captureScreenshot API.
* inspector/InspectorPageAgent.cpp:
(WebCore::InspectorPageAgent::snapshotNode): Added.
(WebCore::InspectorPageAgent::snapshotRect): Added.
* inspector/InspectorPageAgent.h:
* inspector/protocol/Page.json: Added new protocol APIs.
Source/WebInspectorUI:
Add method signatures for snapshotNode() and snapshotRect().
Remove method signature for unimplemented Page.captureScreenshot.
* UserInterface/InspectorBackendCommands.js:</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreinspectorInspectorPageAgentcpp">trunk/Source/WebCore/inspector/InspectorPageAgent.cpp</a></li>
<li><a href="#trunkSourceWebCoreinspectorInspectorPageAgenth">trunk/Source/WebCore/inspector/InspectorPageAgent.h</a></li>
<li><a href="#trunkSourceWebCoreinspectorprotocolPagejson">trunk/Source/WebCore/inspector/protocol/Page.json</a></li>
<li><a href="#trunkSourceWebInspectorUIChangeLog">trunk/Source/WebInspectorUI/ChangeLog</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceInspectorBackendCommandsjs">trunk/Source/WebInspectorUI/UserInterface/InspectorBackendCommands.js</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceLegacy70InspectorBackendCommandsjs">trunk/Source/WebInspectorUI/UserInterface/Legacy/7.0/InspectorBackendCommands.js</a></li>
<li><a href="#trunkSourceWebInspectorUIVersionsInspectoriOS70json">trunk/Source/WebInspectorUI/Versions/Inspector-iOS-7.0.json</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebCore/ChangeLog 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2013-12-05 Brian J. Burg <burg@cs.washington.edu>
+
+ Web Inspector: expose node and frame snapshot capabilities.
+ https://bugs.webkit.org/show_bug.cgi?id=124326
+
+ Reviewed by Joseph Pecoraro.
+
+ This adds snapshotRect() and snapshotNode() to the Page domain.
+ Both methods create snapshots using FrameSnapshotting APIs
+ and send images to the inspector frontend as a data URL.
+
+ Remove the unimplemented Page.captureScreenshot API.
+
+ * inspector/InspectorPageAgent.cpp:
+ (WebCore::InspectorPageAgent::snapshotNode): Added.
+ (WebCore::InspectorPageAgent::snapshotRect): Added.
+ * inspector/InspectorPageAgent.h:
+ * inspector/protocol/Page.json: Added new protocol APIs.
+
</ins><span class="cx"> 2013-12-04 Bear Travis <betravis@adobe.com>
</span><span class="cx">
</span><span class="cx"> [CSS Shapes] Enable CSS Shapes on Windows
</span></span></pre></div>
<a id="trunkSourceWebCoreinspectorInspectorPageAgentcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/inspector/InspectorPageAgent.cpp (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/inspector/InspectorPageAgent.cpp 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebCore/inspector/InspectorPageAgent.cpp 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -51,15 +51,18 @@
</span><span class="cx"> #include "DocumentLoader.h"
</span><span class="cx"> #include "Frame.h"
</span><span class="cx"> #include "FrameLoader.h"
</span><ins>+#include "FrameSnapshotting.h"
</ins><span class="cx"> #include "FrameView.h"
</span><span class="cx"> #include "GeolocationController.h"
</span><span class="cx"> #include "GeolocationError.h"
</span><span class="cx"> #include "HTMLFrameOwnerElement.h"
</span><span class="cx"> #include "HTMLNames.h"
</span><span class="cx"> #include "IdentifiersFactory.h"
</span><ins>+#include "ImageBuffer.h"
</ins><span class="cx"> #include "InjectedScriptManager.h"
</span><span class="cx"> #include "InspectorAgent.h"
</span><span class="cx"> #include "InspectorClient.h"
</span><ins>+#include "InspectorDOMAgent.h"
</ins><span class="cx"> #include "InspectorFrontend.h"
</span><span class="cx"> #include "InspectorInstrumentation.h"
</span><span class="cx"> #include "InspectorOverlay.h"
</span><span class="lines">@@ -1251,12 +1254,46 @@
</span><span class="cx"> m_page->settings().setShowRepaintCounter(visible);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void InspectorPageAgent::captureScreenshot(ErrorString* errorString, String* data)
</del><ins>+void InspectorPageAgent::snapshotNode(ErrorString* errorString, int nodeId, String* outDataURL)
</ins><span class="cx"> {
</span><del>- if (!m_client->captureScreenshot(data))
- *errorString = "Could not capture screenshot";
</del><ins>+ Frame* frame = mainFrame();
+ ASSERT(frame);
+
+ InspectorDOMAgent* domAgent = m_instrumentingAgents->inspectorDOMAgent();
+ ASSERT(domAgent);
+ Node* node = domAgent->assertNode(errorString, nodeId);
+ if (!node)
+ return;
+
+ std::unique_ptr<ImageBuffer> snapshot = WebCore::snapshotNode(*frame, *node);
+ if (!snapshot) {
+ *errorString = ASCIILiteral("Could not capture snapshot");
+ return;
+ }
+
+ *outDataURL = snapshot->toDataURL(ASCIILiteral("image/png"));
</ins><span class="cx"> }
</span><span class="cx">
</span><ins>+void InspectorPageAgent::snapshotRect(ErrorString* errorString, int x, int y, int width, int height, const String& coordinateSystem, String* outDataURL)
+{
+ Frame* frame = mainFrame();
+ ASSERT(frame);
+
+ SnapshotOptions options = SnapshotOptionsNone;
+ if (coordinateSystem == "Viewport")
+ options |= SnapshotOptionsInViewCoordinates;
+
+ IntRect rectangle(x, y, width, height);
+ std::unique_ptr<ImageBuffer> snapshot = snapshotFrameRect(*frame, rectangle, options);
+
+ if (!snapshot) {
+ *errorString = ASCIILiteral("Could not capture snapshot");
+ return;
+ }
+
+ *outDataURL = snapshot->toDataURL(ASCIILiteral("image/png"));
+}
+
</ins><span class="cx"> void InspectorPageAgent::handleJavaScriptDialog(ErrorString* errorString, bool accept, const String* promptText)
</span><span class="cx"> {
</span><span class="cx"> if (!m_client->handleJavaScriptDialog(accept, promptText))
</span></span></pre></div>
<a id="trunkSourceWebCoreinspectorInspectorPageAgenth"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/inspector/InspectorPageAgent.h (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/inspector/InspectorPageAgent.h 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebCore/inspector/InspectorPageAgent.h 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -129,7 +129,8 @@
</span><span class="cx"> virtual void setEmulatedMedia(ErrorString*, const String&);
</span><span class="cx"> virtual void getCompositingBordersVisible(ErrorString*, bool* out_param);
</span><span class="cx"> virtual void setCompositingBordersVisible(ErrorString*, bool);
</span><del>- virtual void captureScreenshot(ErrorString*, String* data);
</del><ins>+ virtual void snapshotNode(ErrorString*, int nodeId, String* outDataURL);
+ virtual void snapshotRect(ErrorString*, int x, int y, int width, int height, const String& coordinateSystem, String* outDataURL);
</ins><span class="cx"> virtual void handleJavaScriptDialog(ErrorString*, bool accept, const String* promptText);
</span><span class="cx"> virtual void archive(ErrorString*, String* data);
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebCoreinspectorprotocolPagejson"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/inspector/protocol/Page.json (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/inspector/protocol/Page.json 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebCore/inspector/protocol/Page.json 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -9,6 +9,12 @@
</span><span class="cx"> "description": "Resource type as it was perceived by the rendering engine."
</span><span class="cx"> },
</span><span class="cx"> {
</span><ins>+ "id": "CoordinateSystem",
+ "type": "string",
+ "enum": ["Viewport", "Page"],
+ "description": "Coordinate system used by supplied coordinates."
+ },
+ {
</ins><span class="cx"> "id": "Frame",
</span><span class="cx"> "type": "object",
</span><span class="cx"> "description": "Information about the Frame on the page.",
</span><span class="lines">@@ -344,13 +350,30 @@
</span><span class="cx"> ]
</span><span class="cx"> },
</span><span class="cx"> {
</span><del>- "name": "captureScreenshot",
- "description": "Capture page screenshot.",
</del><ins>+ "name": "snapshotNode",
+ "description": "Capture a snapshot of the specified node that does not include unrelated layers.",
+ "parameters": [
+ { "name": "nodeId", "$ref": "DOM.NodeId", "description": "Id of the node to snapshot." }
+ ],
</ins><span class="cx"> "returns": [
</span><del>- { "name": "data", "type": "string", "description": "Base64-encoded image data (PNG)." }
</del><ins>+ { "name": "dataURL", "type": "string", "description": "Base64-encoded image data (PNG)." }
</ins><span class="cx"> ]
</span><span class="cx"> },
</span><span class="cx"> {
</span><ins>+ "name": "snapshotRect",
+ "description": "Capture a snapshot of the page within the specified rectangle and coordinate system.",
+ "parameters": [
+ { "name": "x", "type": "integer", "description": "X coordinate" },
+ { "name": "y", "type": "integer", "description": "Y coordinate" },
+ { "name": "width", "type": "integer", "description": "Rectangle width" },
+ { "name": "height", "type": "integer", "description": "Rectangle height" },
+ { "name": "coordinateSystem", "$ref": "CoordinateSystem", "description": "Indicates the coordinate system of the supplied rectangle." }
+ ],
+ "returns": [
+ { "name": "dataURL", "type": "string", "description": "Base64-encoded image data (PNG)." }
+ ]
+ },
+ {
</ins><span class="cx"> "name": "handleJavaScriptDialog",
</span><span class="cx"> "description": "Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload).",
</span><span class="cx"> "parameters": [
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/ChangeLog (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/ChangeLog 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebInspectorUI/ChangeLog 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -1,3 +1,15 @@
</span><ins>+2013-12-05 Brian J. Burg <burg@cs.washington.edu>
+
+ Web Inspector: expose node and frame snapshot capabilities.
+ https://bugs.webkit.org/show_bug.cgi?id=124326
+
+ Reviewed by Joseph Pecoraro.
+
+ Add method signatures for snapshotNode() and snapshotRect().
+ Remove method signature for unimplemented Page.captureScreenshot.
+
+ * UserInterface/InspectorBackendCommands.js:
+
</ins><span class="cx"> 2013-12-05 Alexandru Chiculita <achicu@adobe.com>
</span><span class="cx">
</span><span class="cx"> Web Inspector: [CSS Regions] Show a list of containing regions when clicking a node that is part of a flow
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceInspectorBackendCommandsjs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/InspectorBackendCommands.js (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/InspectorBackendCommands.js 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebInspectorUI/UserInterface/InspectorBackendCommands.js 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -1,5 +1,6 @@
</span><span class="cx"> // File is generated by Source/WebCore/inspector/CodeGeneratorInspector.py
</span><span class="cx">
</span><ins>+// Copyright (c) 2013 Apple Inc. All Rights Reserved.
</ins><span class="cx"> // Copyright (c) 2011 The Chromium Authors. All rights reserved.
</span><span class="cx"> // Use of this source code is governed by a BSD-style license that can be
</span><span class="cx"> // found in the LICENSE file.
</span><span class="lines">@@ -289,6 +290,7 @@
</span><span class="cx"> // Page.
</span><span class="cx"> InspectorBackend.registerPageDispatcher = InspectorBackend.registerDomainDispatcher.bind(InspectorBackend, "Page");
</span><span class="cx"> InspectorBackend.registerEnum("Page.ResourceType", {Document: "Document", Stylesheet: "Stylesheet", Image: "Image", Font: "Font", Script: "Script", XHR: "XHR", WebSocket: "WebSocket", Other: "Other"});
</span><ins>+InspectorBackend.registerEnum("Page.CoordinateSystem", {Viewport: "Viewport", Page: "Page"});
</ins><span class="cx"> InspectorBackend.registerEvent("Page.domContentEventFired", ["timestamp"]);
</span><span class="cx"> InspectorBackend.registerEvent("Page.loadEventFired", ["timestamp"]);
</span><span class="cx"> InspectorBackend.registerEvent("Page.frameNavigated", ["frame"]);
</span><span class="lines">@@ -334,7 +336,8 @@
</span><span class="cx"> InspectorBackend.registerCommand("Page.setEmulatedMedia", [{"name": "media", "type": "string", "optional": false}], []);
</span><span class="cx"> InspectorBackend.registerCommand("Page.getCompositingBordersVisible", [], ["result"]);
</span><span class="cx"> InspectorBackend.registerCommand("Page.setCompositingBordersVisible", [{"name": "visible", "type": "boolean", "optional": false}], []);
</span><del>-InspectorBackend.registerCommand("Page.captureScreenshot", [], ["data"]);
</del><ins>+InspectorBackend.registerCommand("Page.snapshotNode", [{"name": "nodeId", "type": "number", "optional": false}], ["dataURL"]);
+InspectorBackend.registerCommand("Page.snapshotRect", [{"name": "x", "type": "number", "optional": false}, {"name": "y", "type": "number", "optional": false}, {"name": "width", "type": "number", "optional": false}, {"name": "height", "type": "number", "optional": false}, {"name": "coordinateSystem", "type": "string", "optional": false}], ["dataURL"]);
</ins><span class="cx"> InspectorBackend.registerCommand("Page.handleJavaScriptDialog", [{"name": "accept", "type": "boolean", "optional": false}, {"name": "promptText", "type": "string", "optional": true}], []);
</span><span class="cx"> InspectorBackend.registerCommand("Page.archive", [], ["data"]);
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceLegacy70InspectorBackendCommandsjs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Legacy/7.0/InspectorBackendCommands.js (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Legacy/7.0/InspectorBackendCommands.js 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebInspectorUI/UserInterface/Legacy/7.0/InspectorBackendCommands.js 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -1,5 +1,6 @@
</span><span class="cx"> // File is generated by Source/WebCore/inspector/CodeGeneratorInspector.py
</span><span class="cx">
</span><ins>+// Copyright (c) 2013 Apple Inc. All Rights Reserved.
</ins><span class="cx"> // Copyright (c) 2011 The Chromium Authors. All rights reserved.
</span><span class="cx"> // Use of this source code is governed by a BSD-style license that can be
</span><span class="cx"> // found in the LICENSE file.
</span><span class="lines">@@ -66,7 +67,6 @@
</span><span class="cx"> InspectorBackend.registerCommand("Page.setEmulatedMedia", [{"name": "media", "type": "string", "optional": false}], []);
</span><span class="cx"> InspectorBackend.registerCommand("Page.getCompositingBordersVisible", [], ["result"]);
</span><span class="cx"> InspectorBackend.registerCommand("Page.setCompositingBordersVisible", [{"name": "visible", "type": "boolean", "optional": false}], []);
</span><del>-InspectorBackend.registerCommand("Page.captureScreenshot", [], ["data"]);
</del><span class="cx"> InspectorBackend.registerCommand("Page.handleJavaScriptDialog", [{"name": "accept", "type": "boolean", "optional": false}, {"name": "promptText", "type": "string", "optional": true}], []);
</span><span class="cx">
</span><span class="cx"> // Runtime.
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIVersionsInspectoriOS70json"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/Versions/Inspector-iOS-7.0.json (160201 => 160202)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/Versions/Inspector-iOS-7.0.json 2013-12-06 00:25:44 UTC (rev 160201)
+++ trunk/Source/WebInspectorUI/Versions/Inspector-iOS-7.0.json 2013-12-06 00:57:43 UTC (rev 160202)
</span><span class="lines">@@ -411,13 +411,6 @@
</span><span class="cx"> ]
</span><span class="cx"> },
</span><span class="cx"> {
</span><del>- "name": "captureScreenshot",
- "description": "Capture page screenshot.",
- "returns": [
- { "name": "data", "type": "string", "description": "Base64-encoded image data (PNG)." }
- ]
- },
- {
</del><span class="cx"> "name": "handleJavaScriptDialog",
</span><span class="cx"> "description": "Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload).",
</span><span class="cx"> "parameters": [
</span></span></pre>
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