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Diffstat (limited to 'assets/viz/1/goog/fs')
-rw-r--r-- | assets/viz/1/goog/fs/url.js | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/assets/viz/1/goog/fs/url.js b/assets/viz/1/goog/fs/url.js deleted file mode 100644 index 90d8349..0000000 --- a/assets/viz/1/goog/fs/url.js +++ /dev/null @@ -1,110 +0,0 @@ -// Copyright 2015 The Closure Library Authors. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS-IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -/** - * @fileoverview Wrapper for URL and its createObjectUrl and revokeObjectUrl - * methods that are part of the HTML5 File API. - */ - -goog.provide('goog.fs.url'); - - -/** - * Creates a blob URL for a blob object. - * Throws an error if the browser does not support Object Urls. - * - * @param {!Blob} blob The object for which to create the URL. - * @return {string} The URL for the object. - */ -goog.fs.url.createObjectUrl = function(blob) { - return goog.fs.url.getUrlObject_().createObjectURL(blob); -}; - - -/** - * Revokes a URL created by {@link goog.fs.url.createObjectUrl}. - * Throws an error if the browser does not support Object Urls. - * - * @param {string} url The URL to revoke. - */ -goog.fs.url.revokeObjectUrl = function(url) { - goog.fs.url.getUrlObject_().revokeObjectURL(url); -}; - - -/** - * @typedef {{createObjectURL: (function(!Blob): string), - * revokeObjectURL: function(string): void}} - */ -goog.fs.url.UrlObject_; - - -/** - * Get the object that has the createObjectURL and revokeObjectURL functions for - * this browser. - * - * @return {goog.fs.url.UrlObject_} The object for this browser. - * @private - */ -goog.fs.url.getUrlObject_ = function() { - var urlObject = goog.fs.url.findUrlObject_(); - if (urlObject != null) { - return urlObject; - } else { - throw Error('This browser doesn\'t seem to support blob URLs'); - } -}; - - -/** - * Finds the object that has the createObjectURL and revokeObjectURL functions - * for this browser. - * - * @return {?goog.fs.url.UrlObject_} The object for this browser or null if the - * browser does not support Object Urls. - * @suppress {unnecessaryCasts} Depending on how the code is compiled, casting - * goog.global to UrlObject_ may result in unnecessary cast warning. - * However, the cast cannot be removed because with different set of - * compiler flags, the cast is indeed necessary. As such, silencing it. - * @private - */ -goog.fs.url.findUrlObject_ = function() { - // This is what the spec says to do - // http://dev.w3.org/2006/webapi/FileAPI/#dfn-createObjectURL - if (goog.isDef(goog.global.URL) && - goog.isDef(goog.global.URL.createObjectURL)) { - return /** @type {goog.fs.url.UrlObject_} */ (goog.global.URL); - // This is what Chrome does (as of 10.0.648.6 dev) - } else if ( - goog.isDef(goog.global.webkitURL) && - goog.isDef(goog.global.webkitURL.createObjectURL)) { - return /** @type {goog.fs.url.UrlObject_} */ (goog.global.webkitURL); - // This is what the spec used to say to do - } else if (goog.isDef(goog.global.createObjectURL)) { - return /** @type {goog.fs.url.UrlObject_} */ (goog.global); - } else { - return null; - } -}; - - -/** - * Checks whether this browser supports Object Urls. If not, calls to - * createObjectUrl and revokeObjectUrl will result in an error. - * - * @return {boolean} True if this browser supports Object Urls. - */ -goog.fs.url.browserSupportsObjectUrls = function() { - return goog.fs.url.findUrlObject_() != null; -}; |