1155 lines
35 KiB
JavaScript
1155 lines
35 KiB
JavaScript
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'use strict';
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exports.__esModule = true;
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var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
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var _parseUri = require('parse-uri');
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var _parseUri2 = _interopRequireDefault(_parseUri);
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var _miniSignals = require('mini-signals');
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var _miniSignals2 = _interopRequireDefault(_miniSignals);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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// tests is CORS is supported in XHR, if not we need to use XDR
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var useXdr = !!(window.XDomainRequest && !('withCredentials' in new XMLHttpRequest()));
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var tempAnchor = null;
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// some status constants
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var STATUS_NONE = 0;
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var STATUS_OK = 200;
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var STATUS_EMPTY = 204;
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var STATUS_IE_BUG_EMPTY = 1223;
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var STATUS_TYPE_OK = 2;
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// noop
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function _noop() {} /* empty */
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/**
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* Manages the state and loading of a resource and all child resources.
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*
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* @class
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*/
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var Resource = function () {
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/**
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* Sets the load type to be used for a specific extension.
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*
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* @static
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* @param {string} extname - The extension to set the type for, e.g. "png" or "fnt"
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* @param {Resource.LOAD_TYPE} loadType - The load type to set it to.
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*/
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Resource.setExtensionLoadType = function setExtensionLoadType(extname, loadType) {
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setExtMap(Resource._loadTypeMap, extname, loadType);
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};
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/**
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* Sets the load type to be used for a specific extension.
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*
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* @static
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* @param {string} extname - The extension to set the type for, e.g. "png" or "fnt"
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* @param {Resource.XHR_RESPONSE_TYPE} xhrType - The xhr type to set it to.
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*/
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Resource.setExtensionXhrType = function setExtensionXhrType(extname, xhrType) {
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setExtMap(Resource._xhrTypeMap, extname, xhrType);
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};
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/**
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* @param {string} name - The name of the resource to load.
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* @param {string|string[]} url - The url for this resource, for audio/video loads you can pass
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* an array of sources.
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* @param {object} [options] - The options for the load.
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* @param {string|boolean} [options.crossOrigin] - Is this request cross-origin? Default is to
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* determine automatically.
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* @param {Resource.LOAD_TYPE} [options.loadType=Resource.LOAD_TYPE.XHR] - How should this resource
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* be loaded?
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* @param {Resource.XHR_RESPONSE_TYPE} [options.xhrType=Resource.XHR_RESPONSE_TYPE.DEFAULT] - How
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* should the data being loaded be interpreted when using XHR?
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* @param {object} [options.metadata] - Extra configuration for middleware and the Resource object.
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* @param {HTMLImageElement|HTMLAudioElement|HTMLVideoElement} [options.metadata.loadElement=null] - The
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* element to use for loading, instead of creating one.
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* @param {boolean} [options.metadata.skipSource=false] - Skips adding source(s) to the load element. This
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* is useful if you want to pass in a `loadElement` that you already added load sources to.
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* @param {string|string[]} [options.metadata.mimeType] - The mime type to use for the source element of a video/audio
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* elment. If the urls are an array, you can pass this as an array as well where each index is the mime type to
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* use for the corresponding url index.
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*/
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function Resource(name, url, options) {
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_classCallCheck(this, Resource);
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if (typeof name !== 'string' || typeof url !== 'string') {
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throw new Error('Both name and url are required for constructing a resource.');
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}
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options = options || {};
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/**
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* The state flags of this resource.
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*
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* @member {number}
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*/
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this._flags = 0;
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// set data url flag, needs to be set early for some _determineX checks to work.
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this._setFlag(Resource.STATUS_FLAGS.DATA_URL, url.indexOf('data:') === 0);
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/**
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* The name of this resource.
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*
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* @member {string}
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* @readonly
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*/
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this.name = name;
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/**
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* The url used to load this resource.
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*
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* @member {string}
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* @readonly
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*/
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this.url = url;
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/**
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* The extension used to load this resource.
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*
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* @member {string}
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* @readonly
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*/
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this.extension = this._getExtension();
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/**
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* The data that was loaded by the resource.
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*
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* @member {any}
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*/
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this.data = null;
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/**
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* Is this request cross-origin? If unset, determined automatically.
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*
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* @member {string}
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*/
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this.crossOrigin = options.crossOrigin === true ? 'anonymous' : options.crossOrigin;
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/**
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* The method of loading to use for this resource.
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*
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* @member {Resource.LOAD_TYPE}
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*/
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this.loadType = options.loadType || this._determineLoadType();
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/**
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* The type used to load the resource via XHR. If unset, determined automatically.
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*
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* @member {string}
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*/
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this.xhrType = options.xhrType;
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/**
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* Extra info for middleware, and controlling specifics about how the resource loads.
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*
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* Note that if you pass in a `loadElement`, the Resource class takes ownership of it.
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* Meaning it will modify it as it sees fit.
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*
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* @member {object}
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* @property {HTMLImageElement|HTMLAudioElement|HTMLVideoElement} [loadElement=null] - The
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* element to use for loading, instead of creating one.
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* @property {boolean} [skipSource=false] - Skips adding source(s) to the load element. This
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* is useful if you want to pass in a `loadElement` that you already added load sources
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* to.
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*/
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this.metadata = options.metadata || {};
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/**
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* The error that occurred while loading (if any).
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*
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* @member {Error}
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* @readonly
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*/
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this.error = null;
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/**
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* The XHR object that was used to load this resource. This is only set
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* when `loadType` is `Resource.LOAD_TYPE.XHR`.
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*
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* @member {XMLHttpRequest}
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* @readonly
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*/
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this.xhr = null;
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/**
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* The child resources this resource owns.
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*
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* @member {Resource[]}
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* @readonly
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*/
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this.children = [];
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/**
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* The resource type.
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*
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* @member {Resource.TYPE}
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* @readonly
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*/
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this.type = Resource.TYPE.UNKNOWN;
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/**
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* The progress chunk owned by this resource.
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*
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* @member {number}
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* @readonly
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*/
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this.progressChunk = 0;
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/**
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* The `dequeue` method that will be used a storage place for the async queue dequeue method
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* used privately by the loader.
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*
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* @private
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* @member {function}
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*/
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this._dequeue = _noop;
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/**
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* Used a storage place for the on load binding used privately by the loader.
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*
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* @private
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* @member {function}
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*/
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this._onLoadBinding = null;
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/**
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* The `complete` function bound to this resource's context.
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*
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* @private
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* @member {function}
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*/
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this._boundComplete = this.complete.bind(this);
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/**
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* The `_onError` function bound to this resource's context.
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*
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* @private
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* @member {function}
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*/
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this._boundOnError = this._onError.bind(this);
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/**
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* The `_onProgress` function bound to this resource's context.
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*
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* @private
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* @member {function}
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*/
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this._boundOnProgress = this._onProgress.bind(this);
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// xhr callbacks
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this._boundXhrOnError = this._xhrOnError.bind(this);
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this._boundXhrOnAbort = this._xhrOnAbort.bind(this);
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this._boundXhrOnLoad = this._xhrOnLoad.bind(this);
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this._boundXdrOnTimeout = this._xdrOnTimeout.bind(this);
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/**
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* Dispatched when the resource beings to load.
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*
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* The callback looks like {@link Resource.OnStartSignal}.
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*
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* @member {Signal}
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*/
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this.onStart = new _miniSignals2.default();
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/**
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* Dispatched each time progress of this resource load updates.
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* Not all resources types and loader systems can support this event
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* so sometimes it may not be available. If the resource
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* is being loaded on a modern browser, using XHR, and the remote server
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* properly sets Content-Length headers, then this will be available.
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*
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* The callback looks like {@link Resource.OnProgressSignal}.
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*
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* @member {Signal}
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*/
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this.onProgress = new _miniSignals2.default();
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/**
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* Dispatched once this resource has loaded, if there was an error it will
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* be in the `error` property.
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*
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* The callback looks like {@link Resource.OnCompleteSignal}.
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*
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* @member {Signal}
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*/
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this.onComplete = new _miniSignals2.default();
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/**
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* Dispatched after this resource has had all the *after* middleware run on it.
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*
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* The callback looks like {@link Resource.OnCompleteSignal}.
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*
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* @member {Signal}
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*/
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this.onAfterMiddleware = new _miniSignals2.default();
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/**
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* When the resource starts to load.
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*
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* @memberof Resource
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* @callback OnStartSignal
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* @param {Resource} resource - The resource that the event happened on.
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*/
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/**
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* When the resource reports loading progress.
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*
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* @memberof Resource
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* @callback OnProgressSignal
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* @param {Resource} resource - The resource that the event happened on.
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* @param {number} percentage - The progress of the load in the range [0, 1].
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*/
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/**
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* When the resource finishes loading.
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*
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* @memberof Resource
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* @callback OnCompleteSignal
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* @param {Resource} resource - The resource that the event happened on.
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*/
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}
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/**
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* Stores whether or not this url is a data url.
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*
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* @member {boolean}
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* @readonly
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*/
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/**
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* Marks the resource as complete.
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*
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*/
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Resource.prototype.complete = function complete() {
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// TODO: Clean this up in a wrapper or something...gross....
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if (this.data && this.data.removeEventListener) {
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this.data.removeEventListener('error', this._boundOnError, false);
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this.data.removeEventListener('load', this._boundComplete, false);
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this.data.removeEventListener('progress', this._boundOnProgress, false);
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this.data.removeEventListener('canplaythrough', this._boundComplete, false);
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}
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if (this.xhr) {
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if (this.xhr.removeEventListener) {
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this.xhr.removeEventListener('error', this._boundXhrOnError, false);
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this.xhr.removeEventListener('abort', this._boundXhrOnAbort, false);
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this.xhr.removeEventListener('progress', this._boundOnProgress, false);
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this.xhr.removeEventListener('load', this._boundXhrOnLoad, false);
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} else {
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this.xhr.onerror = null;
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this.xhr.ontimeout = null;
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this.xhr.onprogress = null;
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this.xhr.onload = null;
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}
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}
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if (this.isComplete) {
|
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throw new Error('Complete called again for an already completed resource.');
|
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}
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this._setFlag(Resource.STATUS_FLAGS.COMPLETE, true);
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this._setFlag(Resource.STATUS_FLAGS.LOADING, false);
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this.onComplete.dispatch(this);
|
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};
|
||
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||
|
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/**
|
||
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* Aborts the loading of this resource, with an optional message.
|
||
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*
|
||
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* @param {string} message - The message to use for the error
|
||
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*/
|
||
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|
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Resource.prototype.abort = function abort(message) {
|
||
|
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// abort can be called multiple times, ignore subsequent calls.
|
||
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if (this.error) {
|
||
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return;
|
||
|
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}
|
||
|
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|
||
|
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// store error
|
||
|
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this.error = new Error(message);
|
||
|
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|
||
|
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// abort the actual loading
|
||
|
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if (this.xhr) {
|
||
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this.xhr.abort();
|
||
|
|
} else if (this.xdr) {
|
||
|
|
this.xdr.abort();
|
||
|
|
} else if (this.data) {
|
||
|
|
// single source
|
||
|
|
if (this.data.src) {
|
||
|
|
this.data.src = Resource.EMPTY_GIF;
|
||
|
|
}
|
||
|
|
// multi-source
|
||
|
|
else {
|
||
|
|
while (this.data.firstChild) {
|
||
|
|
this.data.removeChild(this.data.firstChild);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// done now.
|
||
|
|
this.complete();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Kicks off loading of this resource. This method is asynchronous.
|
||
|
|
*
|
||
|
|
* @param {function} [cb] - Optional callback to call once the resource is loaded.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype.load = function load(cb) {
|
||
|
|
var _this = this;
|
||
|
|
|
||
|
|
if (this.isLoading) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.isComplete) {
|
||
|
|
if (cb) {
|
||
|
|
setTimeout(function () {
|
||
|
|
return cb(_this);
|
||
|
|
}, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
} else if (cb) {
|
||
|
|
this.onComplete.once(cb);
|
||
|
|
}
|
||
|
|
|
||
|
|
this._setFlag(Resource.STATUS_FLAGS.LOADING, true);
|
||
|
|
|
||
|
|
this.onStart.dispatch(this);
|
||
|
|
|
||
|
|
// if unset, determine the value
|
||
|
|
if (this.crossOrigin === false || typeof this.crossOrigin !== 'string') {
|
||
|
|
this.crossOrigin = this._determineCrossOrigin(this.url);
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (this.loadType) {
|
||
|
|
case Resource.LOAD_TYPE.IMAGE:
|
||
|
|
this.type = Resource.TYPE.IMAGE;
|
||
|
|
this._loadElement('image');
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Resource.LOAD_TYPE.AUDIO:
|
||
|
|
this.type = Resource.TYPE.AUDIO;
|
||
|
|
this._loadSourceElement('audio');
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Resource.LOAD_TYPE.VIDEO:
|
||
|
|
this.type = Resource.TYPE.VIDEO;
|
||
|
|
this._loadSourceElement('video');
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Resource.LOAD_TYPE.XHR:
|
||
|
|
/* falls through */
|
||
|
|
default:
|
||
|
|
if (useXdr && this.crossOrigin) {
|
||
|
|
this._loadXdr();
|
||
|
|
} else {
|
||
|
|
this._loadXhr();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if the flag is set.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {number} flag - The flag to check.
|
||
|
|
* @return {boolean} True if the flag is set.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._hasFlag = function _hasFlag(flag) {
|
||
|
|
return !!(this._flags & flag);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* (Un)Sets the flag.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {number} flag - The flag to (un)set.
|
||
|
|
* @param {boolean} value - Whether to set or (un)set the flag.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._setFlag = function _setFlag(flag, value) {
|
||
|
|
this._flags = value ? this._flags | flag : this._flags & ~flag;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Loads this resources using an element that has a single source,
|
||
|
|
* like an HTMLImageElement.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {string} type - The type of element to use.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._loadElement = function _loadElement(type) {
|
||
|
|
if (this.metadata.loadElement) {
|
||
|
|
this.data = this.metadata.loadElement;
|
||
|
|
} else if (type === 'image' && typeof window.Image !== 'undefined') {
|
||
|
|
this.data = new Image();
|
||
|
|
} else {
|
||
|
|
this.data = document.createElement(type);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.crossOrigin) {
|
||
|
|
this.data.crossOrigin = this.crossOrigin;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.metadata.skipSource) {
|
||
|
|
this.data.src = this.url;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.data.addEventListener('error', this._boundOnError, false);
|
||
|
|
this.data.addEventListener('load', this._boundComplete, false);
|
||
|
|
this.data.addEventListener('progress', this._boundOnProgress, false);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Loads this resources using an element that has multiple sources,
|
||
|
|
* like an HTMLAudioElement or HTMLVideoElement.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {string} type - The type of element to use.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._loadSourceElement = function _loadSourceElement(type) {
|
||
|
|
if (this.metadata.loadElement) {
|
||
|
|
this.data = this.metadata.loadElement;
|
||
|
|
} else if (type === 'audio' && typeof window.Audio !== 'undefined') {
|
||
|
|
this.data = new Audio();
|
||
|
|
} else {
|
||
|
|
this.data = document.createElement(type);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.data === null) {
|
||
|
|
this.abort('Unsupported element: ' + type);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.metadata.skipSource) {
|
||
|
|
// support for CocoonJS Canvas+ runtime, lacks document.createElement('source')
|
||
|
|
if (navigator.isCocoonJS) {
|
||
|
|
this.data.src = Array.isArray(this.url) ? this.url[0] : this.url;
|
||
|
|
} else if (Array.isArray(this.url)) {
|
||
|
|
var mimeTypes = this.metadata.mimeType;
|
||
|
|
|
||
|
|
for (var i = 0; i < this.url.length; ++i) {
|
||
|
|
this.data.appendChild(this._createSource(type, this.url[i], Array.isArray(mimeTypes) ? mimeTypes[i] : mimeTypes));
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
var _mimeTypes = this.metadata.mimeType;
|
||
|
|
|
||
|
|
this.data.appendChild(this._createSource(type, this.url, Array.isArray(_mimeTypes) ? _mimeTypes[0] : _mimeTypes));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
this.data.addEventListener('error', this._boundOnError, false);
|
||
|
|
this.data.addEventListener('load', this._boundComplete, false);
|
||
|
|
this.data.addEventListener('progress', this._boundOnProgress, false);
|
||
|
|
this.data.addEventListener('canplaythrough', this._boundComplete, false);
|
||
|
|
|
||
|
|
this.data.load();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Loads this resources using an XMLHttpRequest.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._loadXhr = function _loadXhr() {
|
||
|
|
// if unset, determine the value
|
||
|
|
if (typeof this.xhrType !== 'string') {
|
||
|
|
this.xhrType = this._determineXhrType();
|
||
|
|
}
|
||
|
|
|
||
|
|
var xhr = this.xhr = new XMLHttpRequest();
|
||
|
|
|
||
|
|
// set the request type and url
|
||
|
|
xhr.open('GET', this.url, true);
|
||
|
|
|
||
|
|
// load json as text and parse it ourselves. We do this because some browsers
|
||
|
|
// *cough* safari *cough* can't deal with it.
|
||
|
|
if (this.xhrType === Resource.XHR_RESPONSE_TYPE.JSON || this.xhrType === Resource.XHR_RESPONSE_TYPE.DOCUMENT) {
|
||
|
|
xhr.responseType = Resource.XHR_RESPONSE_TYPE.TEXT;
|
||
|
|
} else {
|
||
|
|
xhr.responseType = this.xhrType;
|
||
|
|
}
|
||
|
|
|
||
|
|
xhr.addEventListener('error', this._boundXhrOnError, false);
|
||
|
|
xhr.addEventListener('abort', this._boundXhrOnAbort, false);
|
||
|
|
xhr.addEventListener('progress', this._boundOnProgress, false);
|
||
|
|
xhr.addEventListener('load', this._boundXhrOnLoad, false);
|
||
|
|
|
||
|
|
xhr.send();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Loads this resources using an XDomainRequest. This is here because we need to support IE9 (gross).
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._loadXdr = function _loadXdr() {
|
||
|
|
// if unset, determine the value
|
||
|
|
if (typeof this.xhrType !== 'string') {
|
||
|
|
this.xhrType = this._determineXhrType();
|
||
|
|
}
|
||
|
|
|
||
|
|
var xdr = this.xhr = new XDomainRequest();
|
||
|
|
|
||
|
|
// XDomainRequest has a few quirks. Occasionally it will abort requests
|
||
|
|
// A way to avoid this is to make sure ALL callbacks are set even if not used
|
||
|
|
// More info here: http://stackoverflow.com/questions/15786966/xdomainrequest-aborts-post-on-ie-9
|
||
|
|
xdr.timeout = 5000;
|
||
|
|
|
||
|
|
xdr.onerror = this._boundXhrOnError;
|
||
|
|
xdr.ontimeout = this._boundXdrOnTimeout;
|
||
|
|
xdr.onprogress = this._boundOnProgress;
|
||
|
|
xdr.onload = this._boundXhrOnLoad;
|
||
|
|
|
||
|
|
xdr.open('GET', this.url, true);
|
||
|
|
|
||
|
|
// Note: The xdr.send() call is wrapped in a timeout to prevent an
|
||
|
|
// issue with the interface where some requests are lost if multiple
|
||
|
|
// XDomainRequests are being sent at the same time.
|
||
|
|
// Some info here: https://github.com/photonstorm/phaser/issues/1248
|
||
|
|
setTimeout(function () {
|
||
|
|
return xdr.send();
|
||
|
|
}, 1);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a source used in loading via an element.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {string} type - The element type (video or audio).
|
||
|
|
* @param {string} url - The source URL to load from.
|
||
|
|
* @param {string} [mime] - The mime type of the video
|
||
|
|
* @return {HTMLSourceElement} The source element.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._createSource = function _createSource(type, url, mime) {
|
||
|
|
if (!mime) {
|
||
|
|
mime = type + '/' + this._getExtension(url);
|
||
|
|
}
|
||
|
|
|
||
|
|
var source = document.createElement('source');
|
||
|
|
|
||
|
|
source.src = url;
|
||
|
|
source.type = mime;
|
||
|
|
|
||
|
|
return source;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called if a load errors out.
|
||
|
|
*
|
||
|
|
* @param {Event} event - The error event from the element that emits it.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._onError = function _onError(event) {
|
||
|
|
this.abort('Failed to load element using: ' + event.target.nodeName);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called if a load progress event fires for xhr/xdr.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {XMLHttpRequestProgressEvent|Event} event - Progress event.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._onProgress = function _onProgress(event) {
|
||
|
|
if (event && event.lengthComputable) {
|
||
|
|
this.onProgress.dispatch(this, event.loaded / event.total);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called if an error event fires for xhr/xdr.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {XMLHttpRequestErrorEvent|Event} event - Error event.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._xhrOnError = function _xhrOnError() {
|
||
|
|
var xhr = this.xhr;
|
||
|
|
|
||
|
|
this.abort(reqType(xhr) + ' Request failed. Status: ' + xhr.status + ', text: "' + xhr.statusText + '"');
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called if an abort event fires for xhr.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {XMLHttpRequestAbortEvent} event - Abort Event
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._xhrOnAbort = function _xhrOnAbort() {
|
||
|
|
this.abort(reqType(this.xhr) + ' Request was aborted by the user.');
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called if a timeout event fires for xdr.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Event} event - Timeout event.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._xdrOnTimeout = function _xdrOnTimeout() {
|
||
|
|
this.abort(reqType(this.xhr) + ' Request timed out.');
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Called when data successfully loads from an xhr/xdr request.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {XMLHttpRequestLoadEvent|Event} event - Load event
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._xhrOnLoad = function _xhrOnLoad() {
|
||
|
|
var xhr = this.xhr;
|
||
|
|
var text = '';
|
||
|
|
var status = typeof xhr.status === 'undefined' ? STATUS_OK : xhr.status; // XDR has no `.status`, assume 200.
|
||
|
|
|
||
|
|
// responseText is accessible only if responseType is '' or 'text' and on older browsers
|
||
|
|
if (xhr.responseType === '' || xhr.responseType === 'text' || typeof xhr.responseType === 'undefined') {
|
||
|
|
text = xhr.responseText;
|
||
|
|
}
|
||
|
|
|
||
|
|
// status can be 0 when using the `file://` protocol so we also check if a response is set.
|
||
|
|
// If it has a response, we assume 200; otherwise a 0 status code with no contents is an aborted request.
|
||
|
|
if (status === STATUS_NONE && (text.length > 0 || xhr.responseType === Resource.XHR_RESPONSE_TYPE.BUFFER)) {
|
||
|
|
status = STATUS_OK;
|
||
|
|
}
|
||
|
|
// handle IE9 bug: http://stackoverflow.com/questions/10046972/msie-returns-status-code-of-1223-for-ajax-request
|
||
|
|
else if (status === STATUS_IE_BUG_EMPTY) {
|
||
|
|
status = STATUS_EMPTY;
|
||
|
|
}
|
||
|
|
|
||
|
|
var statusType = status / 100 | 0;
|
||
|
|
|
||
|
|
if (statusType === STATUS_TYPE_OK) {
|
||
|
|
// if text, just return it
|
||
|
|
if (this.xhrType === Resource.XHR_RESPONSE_TYPE.TEXT) {
|
||
|
|
this.data = text;
|
||
|
|
this.type = Resource.TYPE.TEXT;
|
||
|
|
}
|
||
|
|
// if json, parse into json object
|
||
|
|
else if (this.xhrType === Resource.XHR_RESPONSE_TYPE.JSON) {
|
||
|
|
try {
|
||
|
|
this.data = JSON.parse(text);
|
||
|
|
this.type = Resource.TYPE.JSON;
|
||
|
|
} catch (e) {
|
||
|
|
this.abort('Error trying to parse loaded json: ' + e);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// if xml, parse into an xml document or div element
|
||
|
|
else if (this.xhrType === Resource.XHR_RESPONSE_TYPE.DOCUMENT) {
|
||
|
|
try {
|
||
|
|
if (window.DOMParser) {
|
||
|
|
var domparser = new DOMParser();
|
||
|
|
|
||
|
|
this.data = domparser.parseFromString(text, 'text/xml');
|
||
|
|
} else {
|
||
|
|
var div = document.createElement('div');
|
||
|
|
|
||
|
|
div.innerHTML = text;
|
||
|
|
|
||
|
|
this.data = div;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.type = Resource.TYPE.XML;
|
||
|
|
} catch (e) {
|
||
|
|
this.abort('Error trying to parse loaded xml: ' + e);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// other types just return the response
|
||
|
|
else {
|
||
|
|
this.data = xhr.response || text;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
this.abort('[' + xhr.status + '] ' + xhr.statusText + ': ' + xhr.responseURL);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.complete();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the `crossOrigin` property for this resource based on if the url
|
||
|
|
* for this resource is cross-origin. If crossOrigin was manually set, this
|
||
|
|
* function does nothing.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {string} url - The url to test.
|
||
|
|
* @param {object} [loc=window.location] - The location object to test against.
|
||
|
|
* @return {string} The crossOrigin value to use (or empty string for none).
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._determineCrossOrigin = function _determineCrossOrigin(url, loc) {
|
||
|
|
// data: and javascript: urls are considered same-origin
|
||
|
|
if (url.indexOf('data:') === 0) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
// default is window.location
|
||
|
|
loc = loc || window.location;
|
||
|
|
|
||
|
|
if (!tempAnchor) {
|
||
|
|
tempAnchor = document.createElement('a');
|
||
|
|
}
|
||
|
|
|
||
|
|
// let the browser determine the full href for the url of this resource and then
|
||
|
|
// parse with the node url lib, we can't use the properties of the anchor element
|
||
|
|
// because they don't work in IE9 :(
|
||
|
|
tempAnchor.href = url;
|
||
|
|
url = (0, _parseUri2.default)(tempAnchor.href, { strictMode: true });
|
||
|
|
|
||
|
|
var samePort = !url.port && loc.port === '' || url.port === loc.port;
|
||
|
|
var protocol = url.protocol ? url.protocol + ':' : '';
|
||
|
|
|
||
|
|
// if cross origin
|
||
|
|
if (url.host !== loc.hostname || !samePort || protocol !== loc.protocol) {
|
||
|
|
return 'anonymous';
|
||
|
|
}
|
||
|
|
|
||
|
|
return '';
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the responseType of an XHR request based on the extension of the
|
||
|
|
* resource being loaded.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @return {Resource.XHR_RESPONSE_TYPE} The responseType to use.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._determineXhrType = function _determineXhrType() {
|
||
|
|
return Resource._xhrTypeMap[this.extension] || Resource.XHR_RESPONSE_TYPE.TEXT;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the loadType of a resource based on the extension of the
|
||
|
|
* resource being loaded.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @return {Resource.LOAD_TYPE} The loadType to use.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._determineLoadType = function _determineLoadType() {
|
||
|
|
return Resource._loadTypeMap[this.extension] || Resource.LOAD_TYPE.XHR;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Extracts the extension (sans '.') of the file being loaded by the resource.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @return {string} The extension.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._getExtension = function _getExtension() {
|
||
|
|
var url = this.url;
|
||
|
|
var ext = '';
|
||
|
|
|
||
|
|
if (this.isDataUrl) {
|
||
|
|
var slashIndex = url.indexOf('/');
|
||
|
|
|
||
|
|
ext = url.substring(slashIndex + 1, url.indexOf(';', slashIndex));
|
||
|
|
} else {
|
||
|
|
var queryStart = url.indexOf('?');
|
||
|
|
var hashStart = url.indexOf('#');
|
||
|
|
var index = Math.min(queryStart > -1 ? queryStart : url.length, hashStart > -1 ? hashStart : url.length);
|
||
|
|
|
||
|
|
url = url.substring(0, index);
|
||
|
|
ext = url.substring(url.lastIndexOf('.') + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
return ext.toLowerCase();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the mime type of an XHR request based on the responseType of
|
||
|
|
* resource being loaded.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Resource.XHR_RESPONSE_TYPE} type - The type to get a mime type for.
|
||
|
|
* @return {string} The mime type to use.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
Resource.prototype._getMimeFromXhrType = function _getMimeFromXhrType(type) {
|
||
|
|
switch (type) {
|
||
|
|
case Resource.XHR_RESPONSE_TYPE.BUFFER:
|
||
|
|
return 'application/octet-binary';
|
||
|
|
|
||
|
|
case Resource.XHR_RESPONSE_TYPE.BLOB:
|
||
|
|
return 'application/blob';
|
||
|
|
|
||
|
|
case Resource.XHR_RESPONSE_TYPE.DOCUMENT:
|
||
|
|
return 'application/xml';
|
||
|
|
|
||
|
|
case Resource.XHR_RESPONSE_TYPE.JSON:
|
||
|
|
return 'application/json';
|
||
|
|
|
||
|
|
case Resource.XHR_RESPONSE_TYPE.DEFAULT:
|
||
|
|
case Resource.XHR_RESPONSE_TYPE.TEXT:
|
||
|
|
/* falls through */
|
||
|
|
default:
|
||
|
|
return 'text/plain';
|
||
|
|
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
_createClass(Resource, [{
|
||
|
|
key: 'isDataUrl',
|
||
|
|
get: function get() {
|
||
|
|
return this._hasFlag(Resource.STATUS_FLAGS.DATA_URL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Describes if this resource has finished loading. Is true when the resource has completely
|
||
|
|
* loaded.
|
||
|
|
*
|
||
|
|
* @member {boolean}
|
||
|
|
* @readonly
|
||
|
|
*/
|
||
|
|
|
||
|
|
}, {
|
||
|
|
key: 'isComplete',
|
||
|
|
get: function get() {
|
||
|
|
return this._hasFlag(Resource.STATUS_FLAGS.COMPLETE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Describes if this resource is currently loading. Is true when the resource starts loading,
|
||
|
|
* and is false again when complete.
|
||
|
|
*
|
||
|
|
* @member {boolean}
|
||
|
|
* @readonly
|
||
|
|
*/
|
||
|
|
|
||
|
|
}, {
|
||
|
|
key: 'isLoading',
|
||
|
|
get: function get() {
|
||
|
|
return this._hasFlag(Resource.STATUS_FLAGS.LOADING);
|
||
|
|
}
|
||
|
|
}]);
|
||
|
|
|
||
|
|
return Resource;
|
||
|
|
}();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The types of resources a resource could represent.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @readonly
|
||
|
|
* @enum {number}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
exports.default = Resource;
|
||
|
|
Resource.STATUS_FLAGS = {
|
||
|
|
NONE: 0,
|
||
|
|
DATA_URL: 1 << 0,
|
||
|
|
COMPLETE: 1 << 1,
|
||
|
|
LOADING: 1 << 2
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The types of resources a resource could represent.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @readonly
|
||
|
|
* @enum {number}
|
||
|
|
*/
|
||
|
|
Resource.TYPE = {
|
||
|
|
UNKNOWN: 0,
|
||
|
|
JSON: 1,
|
||
|
|
XML: 2,
|
||
|
|
IMAGE: 3,
|
||
|
|
AUDIO: 4,
|
||
|
|
VIDEO: 5,
|
||
|
|
TEXT: 6
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The types of loading a resource can use.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @readonly
|
||
|
|
* @enum {number}
|
||
|
|
*/
|
||
|
|
Resource.LOAD_TYPE = {
|
||
|
|
/** Uses XMLHttpRequest to load the resource. */
|
||
|
|
XHR: 1,
|
||
|
|
/** Uses an `Image` object to load the resource. */
|
||
|
|
IMAGE: 2,
|
||
|
|
/** Uses an `Audio` object to load the resource. */
|
||
|
|
AUDIO: 3,
|
||
|
|
/** Uses a `Video` object to load the resource. */
|
||
|
|
VIDEO: 4
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The XHR ready states, used internally.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @readonly
|
||
|
|
* @enum {string}
|
||
|
|
*/
|
||
|
|
Resource.XHR_RESPONSE_TYPE = {
|
||
|
|
/** string */
|
||
|
|
DEFAULT: 'text',
|
||
|
|
/** ArrayBuffer */
|
||
|
|
BUFFER: 'arraybuffer',
|
||
|
|
/** Blob */
|
||
|
|
BLOB: 'blob',
|
||
|
|
/** Document */
|
||
|
|
DOCUMENT: 'document',
|
||
|
|
/** Object */
|
||
|
|
JSON: 'json',
|
||
|
|
/** String */
|
||
|
|
TEXT: 'text'
|
||
|
|
};
|
||
|
|
|
||
|
|
Resource._loadTypeMap = {
|
||
|
|
// images
|
||
|
|
gif: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
png: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
bmp: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
jpg: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
jpeg: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
tif: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
tiff: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
webp: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
tga: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
svg: Resource.LOAD_TYPE.IMAGE,
|
||
|
|
'svg+xml': Resource.LOAD_TYPE.IMAGE, // for SVG data urls
|
||
|
|
|
||
|
|
// audio
|
||
|
|
mp3: Resource.LOAD_TYPE.AUDIO,
|
||
|
|
ogg: Resource.LOAD_TYPE.AUDIO,
|
||
|
|
wav: Resource.LOAD_TYPE.AUDIO,
|
||
|
|
|
||
|
|
// videos
|
||
|
|
mp4: Resource.LOAD_TYPE.VIDEO,
|
||
|
|
webm: Resource.LOAD_TYPE.VIDEO
|
||
|
|
};
|
||
|
|
|
||
|
|
Resource._xhrTypeMap = {
|
||
|
|
// xml
|
||
|
|
xhtml: Resource.XHR_RESPONSE_TYPE.DOCUMENT,
|
||
|
|
html: Resource.XHR_RESPONSE_TYPE.DOCUMENT,
|
||
|
|
htm: Resource.XHR_RESPONSE_TYPE.DOCUMENT,
|
||
|
|
xml: Resource.XHR_RESPONSE_TYPE.DOCUMENT,
|
||
|
|
tmx: Resource.XHR_RESPONSE_TYPE.DOCUMENT,
|
||
|
|
svg: Resource.XHR_RESPONSE_TYPE.DOCUMENT,
|
||
|
|
|
||
|
|
// This was added to handle Tiled Tileset XML, but .tsx is also a TypeScript React Component.
|
||
|
|
// Since it is way less likely for people to be loading TypeScript files instead of Tiled files,
|
||
|
|
// this should probably be fine.
|
||
|
|
tsx: Resource.XHR_RESPONSE_TYPE.DOCUMENT,
|
||
|
|
|
||
|
|
// images
|
||
|
|
gif: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
png: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
bmp: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
jpg: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
jpeg: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
tif: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
tiff: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
webp: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
tga: Resource.XHR_RESPONSE_TYPE.BLOB,
|
||
|
|
|
||
|
|
// json
|
||
|
|
json: Resource.XHR_RESPONSE_TYPE.JSON,
|
||
|
|
|
||
|
|
// text
|
||
|
|
text: Resource.XHR_RESPONSE_TYPE.TEXT,
|
||
|
|
txt: Resource.XHR_RESPONSE_TYPE.TEXT,
|
||
|
|
|
||
|
|
// fonts
|
||
|
|
ttf: Resource.XHR_RESPONSE_TYPE.BUFFER,
|
||
|
|
otf: Resource.XHR_RESPONSE_TYPE.BUFFER
|
||
|
|
};
|
||
|
|
|
||
|
|
// We can't set the `src` attribute to empty string, so on abort we set it to this 1px transparent gif
|
||
|
|
Resource.EMPTY_GIF = 'data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Quick helper to set a value on one of the extension maps. Ensures there is no
|
||
|
|
* dot at the start of the extension.
|
||
|
|
*
|
||
|
|
* @ignore
|
||
|
|
* @param {object} map - The map to set on.
|
||
|
|
* @param {string} extname - The extension (or key) to set.
|
||
|
|
* @param {number} val - The value to set.
|
||
|
|
*/
|
||
|
|
function setExtMap(map, extname, val) {
|
||
|
|
if (extname && extname.indexOf('.') === 0) {
|
||
|
|
extname = extname.substring(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!extname) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
map[extname] = val;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Quick helper to get string xhr type.
|
||
|
|
*
|
||
|
|
* @ignore
|
||
|
|
* @param {XMLHttpRequest|XDomainRequest} xhr - The request to check.
|
||
|
|
* @return {string} The type.
|
||
|
|
*/
|
||
|
|
function reqType(xhr) {
|
||
|
|
return xhr.toString().replace('object ', '');
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=Resource.js.map
|