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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 = function(url, sourceMap)
{
WebInspector.Resource.call(this, url, null);
console.assert(url);
console.assert(sourceMap);
this._sourceMap = sourceMap;
};
WebInspector.SourceMapResource.prototype = {
constructor: WebInspector.SourceMapResource,
// Public
get sourceMap()
{
return this._sourceMap;
},
get sourceMapDisplaySubpath()
{
var sourceMappingBasePathURLComponents = this._sourceMap.sourceMappingBasePathURLComponents;
var resourceURLComponents = this.urlComponents;
// 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);
},
canRequestContentFromBackend: function()
{
return !this.finished;
},
requestContentFromBackend: function(callback)
{
function requestAsyncCallback(body, base64encoded, mimeType)
{
if (body === null) {
this.markAsFailed();
callback("Failed to load resource", body, base64encoded);
return;
}
var oldType = this._type;
var oldMIMEType = this._mimeType;
this._mimeType = mimeType;
this._type = WebInspector.Resource.Type.fromMIMEType(this._mimeType);
if (oldMIMEType !== mimeType)
this.dispatchEventToListeners(WebInspector.Resource.Event.MIMETypeDidChange, {oldMIMEType: oldMIMEType});
if (oldType !== this._type)
this.dispatchEventToListeners(WebInspector.Resource.Event.TypeDidChange, {oldType: oldType});
this.markAsFinished();
callback(null, body, base64encoded);
}
this._requestResourceAsynchronously(requestAsyncCallback.bind(this));
return true;
},
createSourceCodeLocation: function(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: function(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);
},
// Private
_requestResourceAsynchronously: function(callback)
{
// FIXME: <rdar://problem/13238886> Source Maps: Frontend needs asynchronous resource loading of content + mime type
function async()
{
var body = this._sourceMap.sourceContent(this.url) || InspectorFrontendHost.loadResourceSynchronously(this.url);
if (body === undefined)
body = null;
var fileExtension = WebInspector.fileExtensionForURL(this.url);
var mimeType = WebInspector.mimeTypeForFileExtension(fileExtension, true) || "text/javascript";
callback(body, false, mimeType);
}
setTimeout(async.bind(this), 0);
}
};
WebInspector.SourceMapResource.prototype.__proto__ = WebInspector.Resource.prototype;
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