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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);
}
};
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