webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 178 insertions, 0 deletions

diff --git a/Source/WebInspectorUI/UserInterface/Models/SourceMapResource.js b/Source/WebInspectorUI/UserInterface/Models/SourceMapResource.js
new file mode 100644
index 000000000..e7a17cbdc
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+++ b/Source/WebInspectorUI/UserInterface/Models/SourceMapResource.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.SourceMapResource = class SourceMapResource extends WebInspector.Resource
+{
+    constructor(url, sourceMap)
+    {
+        super(url, null);
+
+        console.assert(url);
+        console.assert(sourceMap);
+
+        this._sourceMap = sourceMap;
+
+        var inheritedMIMEType = this._sourceMap.originalSourceCode instanceof WebInspector.Resource ? this._sourceMap.originalSourceCode.syntheticMIMEType : null;
+
+        var fileExtension = WebInspector.fileExtensionForURL(url);
+        var fileExtensionMIMEType = WebInspector.mimeTypeForFileExtension(fileExtension, true);
+
+        // FIXME: This is a layering violation. It should use a helper function on the
+        // Resource base-class to set _mimeType and _type.
+        this._mimeType = fileExtensionMIMEType || inheritedMIMEType || "text/javascript";
+        this._type = WebInspector.Resource.typeFromMIMEType(this._mimeType);
+
+        // Mark the resource as loaded so it does not show a spinner in the sidebar.
+        // We will really load the resource the first time content is requested.
+        this.markAsFinished();
+    }
+
+    // Public
+
+    get sourceMap()
+    {
+        return this._sourceMap;
+    }
+
+    get sourceMapDisplaySubpath()
+    {
+        var sourceMappingBasePathURLComponents = this._sourceMap.sourceMappingBasePathURLComponents;
+        var resourceURLComponents = this.urlComponents;
+
+        // Fallback for JavaScript debuggable named scripts that may not have a complete URL.
+        if (!resourceURLComponents.path)
+            resourceURLComponents.path = this.url;
+
+        // Different schemes / hosts. Return the host + path of this resource.
+        if (resourceURLComponents.scheme !== sourceMappingBasePathURLComponents.scheme || resourceURLComponents.host !== sourceMappingBasePathURLComponents.host)
+            return resourceURLComponents.host + (resourceURLComponents.port ? (":" + resourceURLComponents.port) : "") + resourceURLComponents.path;
+
+        // Same host, but not a subpath of the base. This implies a ".." in the relative path.
+        if (!resourceURLComponents.path.startsWith(sourceMappingBasePathURLComponents.path))
+            return relativePath(resourceURLComponents.path, sourceMappingBasePathURLComponents.path);
+
+        // Same host. Just a subpath of the base.
+        return resourceURLComponents.path.substring(sourceMappingBasePathURLComponents.path.length, resourceURLComponents.length);
+    }
+
+    requestContentFromBackend(callback)
+    {
+        // Revert the markAsFinished that was done in the constructor.
+        this.revertMarkAsFinished();
+
+        var inlineContent = this._sourceMap.sourceContent(this.url);
+        if (inlineContent) {
+            // Force inline content to be asynchronous to match the expected load pattern.
+            // FIXME: We don't know the MIME-type for inline content. Guess by analyzing the content?
+            // Returns a promise.
+            return sourceMapResourceLoaded.call(this, {content: inlineContent, mimeType: this.mimeType, statusCode: 200});
+        }
+
+        function sourceMapResourceNotAvailable(error, content, mimeType, statusCode)
+        {
+            this.markAsFailed();
+            return Promise.resolve({
+                error: WebInspector.UIString("An error occurred trying to load the resource."),
+                content,
+                mimeType,
+                statusCode
+            });
+        }
+
+        function sourceMapResourceLoadError(error)
+        {
+            // There was an error calling NetworkAgent.loadResource.
+            console.error(error || "There was an unknown error calling NetworkAgent.loadResource.");
+            this.markAsFailed();
+            return Promise.resolve({error: WebInspector.UIString("An error occurred trying to load the resource.")});
+        }
+
+        function sourceMapResourceLoaded(parameters)
+        {
+            var {error, content, mimeType, statusCode} = parameters;
+
+            var base64encoded = false;
+
+            if (statusCode >= 400 || error)
+                return sourceMapResourceNotAvailable(error, content, mimeType, statusCode);
+
+            // FIXME: Add support for picking the best MIME-type. Right now the file extension is the best bet.
+            // The constructor set MIME-type based on the file extension and we ignore mimeType here.
+
+            this.markAsFinished();
+
+            return Promise.resolve({
+                content,
+                mimeType,
+                base64encoded,
+                statusCode
+            });
+        }
+
+        // COMPATIBILITY (iOS 7): Network.loadResource did not exist.
+        // Also, JavaScript Debuggable with SourceMaps that do not have inlined content may reach this.
+        if (!window.NetworkAgent || !NetworkAgent.loadResource)
+            return sourceMapResourceLoadError.call(this);
+
+        var frameIdentifier = null;
+        if (this._sourceMap.originalSourceCode instanceof WebInspector.Resource && this._sourceMap.originalSourceCode.parentFrame)
+            frameIdentifier = this._sourceMap.originalSourceCode.parentFrame.id;
+
+        if (!frameIdentifier)
+            frameIdentifier = WebInspector.frameResourceManager.mainFrame.id;
+
+        return NetworkAgent.loadResource(frameIdentifier, this.url).then(sourceMapResourceLoaded.bind(this)).catch(sourceMapResourceLoadError.bind(this));
+    }
+
+    createSourceCodeLocation(lineNumber, columnNumber)
+    {
+        // SourceCodeLocations are always constructed with raw resources and raw locations. Lookup the raw location.
+        var entry = this._sourceMap.findEntryReversed(this.url, lineNumber);
+        var rawLineNumber = entry[0];
+        var rawColumnNumber = entry[1];
+
+        // If the raw location is an inline script we need to include that offset.
+        var originalSourceCode = this._sourceMap.originalSourceCode;
+        if (originalSourceCode instanceof WebInspector.Script) {
+            if (rawLineNumber === 0)
+                rawColumnNumber += originalSourceCode.range.startColumn;
+            rawLineNumber += originalSourceCode.range.startLine;
+        }
+
+        // Create the SourceCodeLocation and since we already know the the mapped location set it directly.
+        var location = originalSourceCode.createSourceCodeLocation(rawLineNumber, rawColumnNumber);
+        location._setMappedLocation(this, lineNumber, columnNumber);
+        return location;
+    }
+
+    createSourceCodeTextRange(textRange)
+    {
+        // SourceCodeTextRanges are always constructed with raw resources and raw locations.
+        // However, we can provide the most accurate mapped locations in construction.
+        var startSourceCodeLocation = this.createSourceCodeLocation(textRange.startLine, textRange.startColumn);
+        var endSourceCodeLocation = this.createSourceCodeLocation(textRange.endLine, textRange.endColumn);
+        return new WebInspector.SourceCodeTextRange(this._sourceMap.originalSourceCode, startSourceCodeLocation, endSourceCodeLocation);
+    }
+};