Index: chrome/browser/resources/file_manager/js/image_parsers.js |
diff --git a/chrome/browser/resources/file_manager/js/image_parsers.js b/chrome/browser/resources/file_manager/js/image_parsers.js |
deleted file mode 100644 |
index e467a3e7fc48861b9aa9fd03a3b47bd033b923b3..0000000000000000000000000000000000000000 |
--- a/chrome/browser/resources/file_manager/js/image_parsers.js |
+++ /dev/null |
@@ -1,93 +0,0 @@ |
-// Copyright (c) 2011 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-/* Base class for image metadata parsers that only need to look at a short |
- fragment at the start of the file */ |
-function SimpleImageParser(parent, type, urlFilter, headerSize) { |
- ImageParser.call(this, parent, type, urlFilter); |
- this.headerSize = headerSize; |
-} |
- |
-SimpleImageParser.prototype = {__proto__: ImageParser.prototype}; |
- |
-SimpleImageParser.prototype.parse = function( |
- file, metadata, callback, errorCallback) { |
- var self = this; |
- util.readFileBytes(file, 0, this.headerSize, |
- function (file, br) { |
- try { |
- self.parseHeader(metadata, br); |
- callback(metadata); |
- } catch(e) { |
- errorCallback(e.toString()); |
- } |
- }, |
- errorCallback); |
-}; |
- |
- |
-function PngParser(parent) { |
- SimpleImageParser.call(this, parent, 'png', /\.png$/i, 24); |
-} |
- |
-PngParser.prototype = {__proto__: SimpleImageParser.prototype}; |
- |
-PngParser.prototype.parseHeader = function(metadata, br) { |
- br.setByteOrder(ByteReader.BIG_ENDIAN); |
- |
- var signature = br.readString(8); |
- if (signature != '\x89PNG\x0D\x0A\x1A\x0A') |
- throw new Error('Invalid PNG signature: ' + signature); |
- |
- br.seek(12); |
- var ihdr = br.readString(4); |
- if (ihdr != 'IHDR') |
- throw new Error('Missing IHDR chunk'); |
- |
- metadata.width = br.readScalar(4); |
- metadata.height = br.readScalar(4); |
-}; |
- |
-MetadataDispatcher.registerParserClass(PngParser); |
- |
- |
-function BmpParser(parent) { |
- SimpleImageParser.call(this, parent, 'bmp', /\.bmp$/i, 28); |
-} |
- |
-BmpParser.prototype = {__proto__: SimpleImageParser.prototype}; |
- |
-BmpParser.prototype.parseHeader = function(metadata, br) { |
- br.setByteOrder(ByteReader.LITTLE_ENDIAN); |
- |
- var signature = br.readString(2); |
- if (signature != 'BM') |
- throw new Error('Invalid BMP signature: ' + signature); |
- |
- br.seek(18); |
- metadata.width = br.readScalar(4); |
- metadata.height = br.readScalar(4); |
-}; |
- |
-MetadataDispatcher.registerParserClass(BmpParser); |
- |
- |
-function GifParser(parent) { |
- SimpleImageParser.call(this, parent, 'gif', /\.Gif$/i, 10); |
-} |
- |
-GifParser.prototype = {__proto__: SimpleImageParser.prototype}; |
- |
-GifParser.prototype.parseHeader = function(metadata, br) { |
- br.setByteOrder(ByteReader.LITTLE_ENDIAN); |
- |
- var signature = br.readString(6); |
- if (!signature.match(/GIF8(7|9)a/)) |
- throw new Error('Invalid GIF signature: ' + signature); |
- |
- metadata.width = br.readScalar(2); |
- metadata.height = br.readScalar(2); |
-}; |
- |
-MetadataDispatcher.registerParserClass(GifParser); |