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authorLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
commit32761a6cee1d0dee366b885b7b9c777e67885688 (patch)
treed6bec92bebfb216f4126356e55518842c2f476a1 /Source/WebInspectorUI/UserInterface/Controllers/SourceMapManager.js
parenta4e969f4965059196ca948db781e52f7cfebf19e (diff)
downloadWebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz
webkitgtk-2.4.11webkitgtk-2.4.11
Diffstat (limited to 'Source/WebInspectorUI/UserInterface/Controllers/SourceMapManager.js')
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--- a/Source/WebInspectorUI/UserInterface/Controllers/SourceMapManager.js
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-/*
- * Copyright (C) 2013 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-WebInspector.SourceMapManager = class SourceMapManager extends WebInspector.Object
-{
- constructor()
- {
- super();
-
- this._sourceMapURLMap = {};
- this._downloadingSourceMaps = {};
-
- WebInspector.Frame.addEventListener(WebInspector.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this);
- }
-
- // Public
-
- sourceMapForURL(sourceMapURL)
- {
- return this._sourceMapURLMap[sourceMapURL];
- }
-
- downloadSourceMap(sourceMapURL, baseURL, originalSourceCode)
- {
- sourceMapURL = absoluteURL(sourceMapURL, baseURL);
- if (!sourceMapURL)
- return;
-
- console.assert(originalSourceCode.url);
- if (!originalSourceCode.url)
- return;
-
- // FIXME: <rdar://problem/13265694> Source Maps: Better handle when multiple resources reference the same SourceMap
-
- if (sourceMapURL in this._sourceMapURLMap)
- return;
-
- if (sourceMapURL in this._downloadingSourceMaps)
- return;
-
- function loadAndParseSourceMap()
- {
- this._loadAndParseSourceMap(sourceMapURL, baseURL, originalSourceCode);
- }
-
- if (!WebInspector.frameResourceManager.mainFrame) {
- // If we don't have a main frame, then we are likely in the middle of building the resource tree.
- // Delaying until the next runloop is enough in this case to then start loading the source map.
- setTimeout(loadAndParseSourceMap.bind(this), 0);
- return;
- }
-
- loadAndParseSourceMap.call(this);
- }
-
- // Private
-
- _loadAndParseSourceMap(sourceMapURL, baseURL, originalSourceCode)
- {
- this._downloadingSourceMaps[sourceMapURL] = true;
-
- function sourceMapLoaded(error, content, mimeType, statusCode)
- {
- if (error || statusCode >= 400) {
- this._loadAndParseFailed(sourceMapURL);
- return;
- }
-
- if (content.slice(0, 3) === ")]}") {
- var firstNewlineIndex = content.indexOf("\n");
- if (firstNewlineIndex === -1) {
- this._loadAndParseFailed(sourceMapURL);
- return;
- }
-
- content = content.substring(firstNewlineIndex);
- }
-
- try {
- var payload = JSON.parse(content);
- var baseURL = sourceMapURL.startsWith("data:") ? originalSourceCode.url : sourceMapURL;
- var sourceMap = new WebInspector.SourceMap(baseURL, payload, originalSourceCode);
- this._loadAndParseSucceeded(sourceMapURL, sourceMap);
- } catch(e) {
- this._loadAndParseFailed(sourceMapURL);
- }
- }
-
- if (sourceMapURL.startsWith("data:")) {
- let {mimeType, base64, data} = parseDataURL(sourceMapURL);
- let content = base64 ? atob(data) : data;
- sourceMapLoaded.call(this, null, content, mimeType, 0);
- return;
- }
-
- // COMPATIBILITY (iOS 7): Network.loadResource did not exist.
- // Also, JavaScript Debuggable may reach this.
- if (!window.NetworkAgent || !NetworkAgent.loadResource) {
- this._loadAndParseFailed(sourceMapURL);
- return;
- }
-
- var frameIdentifier = null;
- if (originalSourceCode instanceof WebInspector.Resource && originalSourceCode.parentFrame)
- frameIdentifier = originalSourceCode.parentFrame.id;
-
- if (!frameIdentifier)
- frameIdentifier = WebInspector.frameResourceManager.mainFrame.id;
-
- NetworkAgent.loadResource(frameIdentifier, sourceMapURL, sourceMapLoaded.bind(this));
- }
-
- _loadAndParseFailed(sourceMapURL)
- {
- delete this._downloadingSourceMaps[sourceMapURL];
- }
-
- _loadAndParseSucceeded(sourceMapURL, sourceMap)
- {
- if (!(sourceMapURL in this._downloadingSourceMaps))
- return;
-
- delete this._downloadingSourceMaps[sourceMapURL];
-
- this._sourceMapURLMap[sourceMapURL] = sourceMap;
-
- var sources = sourceMap.sources();
- for (var i = 0; i < sources.length; ++i) {
- var sourceMapResource = new WebInspector.SourceMapResource(sources[i], sourceMap);
- sourceMap.addResource(sourceMapResource);
- }
-
- // Associate the SourceMap with the originalSourceCode.
- sourceMap.originalSourceCode.addSourceMap(sourceMap);
-
- // If the originalSourceCode was not a Resource, be sure to also associate with the Resource if one exists.
- // FIXME: We should try to use the right frame instead of a global lookup by URL.
- if (!(sourceMap.originalSourceCode instanceof WebInspector.Resource)) {
- console.assert(sourceMap.originalSourceCode instanceof WebInspector.Script);
- var resource = sourceMap.originalSourceCode.resource;
- if (resource)
- resource.addSourceMap(sourceMap);
- }
- }
-
- _mainResourceDidChange(event)
- {
- if (!event.target.isMainFrame())
- return;
-
- this._sourceMapURLMap = {};
- this._downloadingSourceMaps = {};
- }
-};