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Add evert's davclient.js + es6-promise + IE8 workaround
Add evert's davclient.js + es6-promise + IE8 workaround
- Add davclient.js lib - Add es6-promise required by that lib - Wrote IE8 workaround lib/shim for davclient.jsremotes/origin/fix-delete-homeidr-on-userdelete
committed by
Lukas Reschke
13 changed files with 1591 additions and 5 deletions
-
4bower.json
-
8core/js/core.json
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169core/js/files/ie8davclient.js
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11core/vendor/.gitignore
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27core/vendor/davclient.js/LICENSE
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296core/vendor/davclient.js/lib/client.js
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40core/vendor/es6-promise/.bower.json
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11core/vendor/es6-promise/.npmignore
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17core/vendor/es6-promise/.release.json
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11core/vendor/es6-promise/.spmignore
-
19core/vendor/es6-promise/LICENSE
-
972core/vendor/es6-promise/dist/es6-promise.js
-
7lib/private/template.php
@ -0,0 +1,169 @@ |
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/* |
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* Copyright (c) 2015 |
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* |
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* This file is licensed under the Affero General Public License version 3 |
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* or later. |
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* |
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* See the COPYING-README file. |
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* |
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*/ |
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|
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/* global dav */ |
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(function(dav) { |
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|
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/** |
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* Override davclient.js methods with IE8-compatible logic |
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*/ |
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dav.Client.prototype = _.extend({}, dav.Client.prototype, { |
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|
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/** |
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* Generates a propFind request. |
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* |
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* @param {string} url Url to do the propfind request on |
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* @param {Array} properties List of properties to retrieve. |
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* @return {Promise} |
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*/ |
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propFind : function(url, properties, depth) { |
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if(typeof depth == "undefined") { |
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depth = 0; |
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} |
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var headers = { |
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Depth : depth, |
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'Content-Type' : 'application/xml; charset=utf-8' |
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}; |
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|
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var body = |
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'<?xml version="1.0"?>\n' + |
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'<d:propfind '; |
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|
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var namespace; |
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for (namespace in this.xmlNamespaces) { |
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body += ' xmlns:' + this.xmlNamespaces[namespace] + '="' + namespace + '"'; |
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} |
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body += '>\n' + |
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' <d:prop>\n'; |
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|
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for(var ii in properties) { |
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var propText = properties[ii]; |
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if (typeof propText !== 'string') { |
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// can happen on IE8
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continue; |
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} |
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var property = this.parseClarkNotation(properties[ii]); |
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if (this.xmlNamespaces[property.namespace]) { |
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body+=' <' + this.xmlNamespaces[property.namespace] + ':' + property.name + ' />\n'; |
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} else { |
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body+=' <x:' + property.name + ' xmlns:x="' + property.namespace + '" />\n'; |
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} |
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|
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} |
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body+=' </d:prop>\n'; |
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body+='</d:propfind>'; |
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|
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return this.request('PROPFIND', url, headers, body).then( |
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function(result) { |
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var elements = this.parseMultiStatus(result.xhr.responseXML); |
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var response; |
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if (depth===0) { |
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response = { |
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status: result.status, |
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body: elements[0] |
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}; |
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} else { |
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response = { |
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status: result.status, |
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body: elements |
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}; |
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} |
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return response; |
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|
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}.bind(this) |
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); |
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|
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}, |
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_getElementsByTagName: function(node, name, resolver) { |
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var parts = name.split(':'); |
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var tagName = parts[1]; |
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var namespace = resolver(parts[0]); |
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if (node.getElementsByTagNameNS) { |
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return node.getElementsByTagNameNS(namespace, tagName); |
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} |
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return node.getElementsByTagName(name); |
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}, |
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|
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/** |
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* Parses a multi-status response body. |
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* |
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* @param {string} xmlBody |
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* @param {Array} |
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*/ |
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parseMultiStatus : function(doc) { |
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|
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var result = []; |
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var resolver = function(foo) { |
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var ii; |
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for(ii in this.xmlNamespaces) { |
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if (this.xmlNamespaces[ii] === foo) { |
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return ii; |
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} |
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} |
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}.bind(this); |
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|
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var responses = this._getElementsByTagName(doc, 'd:response', resolver); |
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var i; |
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for (i = 0; i < responses.length; i++) { |
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var responseNode = responses[i]; |
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var response = { |
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href : null, |
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propStat : [] |
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}; |
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|
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var hrefNode = this._getElementsByTagName(responseNode, 'd:href', resolver)[0]; |
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|
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response.href = hrefNode.textContent || hrefNode.text; |
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var propStatNodes = this._getElementsByTagName(responseNode, 'd:propstat', resolver); |
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var j = 0; |
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|
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for (j = 0; j < propStatNodes.length; j++) { |
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var propStatNode = propStatNodes[j]; |
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var statusNode = this._getElementsByTagName(propStatNode, 'd:status', resolver)[0]; |
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|
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var propStat = { |
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status : statusNode.textContent || statusNode.text, |
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properties : [] |
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}; |
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|
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var propNode = this._getElementsByTagName(propStatNode, 'd:prop', resolver)[0]; |
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if (!propNode) { |
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continue; |
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} |
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var k = 0; |
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for (k = 0; k < propNode.childNodes.length; k++) { |
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var prop = propNode.childNodes[k]; |
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var value = prop.textContent || prop.text; |
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if (prop.childNodes && prop.childNodes.length > 0 && prop.childNodes[0].nodeType === 1) { |
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value = prop.childNodes; |
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} |
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propStat.properties['{' + prop.namespaceURI + '}' + (prop.localName || prop.baseName)] = value; |
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} |
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response.propStat.push(propStat); |
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} |
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result.push(response); |
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} |
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return result; |
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} |
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}); |
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})(dav); |
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@ -0,0 +1,27 @@ |
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Copyright (C) 2013-2014 fruux GmbH (https://fruux.com/) |
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All rights reserved. |
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|
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Redistribution and use in source and binary forms, with or without modification, |
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are permitted provided that the following conditions are met: |
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|
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* Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright notice, |
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this list of conditions and the following disclaimer in the documentation |
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and/or other materials provided with the distribution. |
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* Neither the name Sabre nor the names of its contributors |
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may be used to endorse or promote products derived from this software |
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without specific prior written permission. |
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|
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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POSSIBILITY OF SUCH DAMAGE. |
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@ -0,0 +1,296 @@ |
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if (typeof dav == 'undefined') { dav = {}; }; |
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dav.Client = function(options) { |
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var i; |
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for(i in options) { |
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this[i] = options[i]; |
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} |
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}; |
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dav.Client.prototype = { |
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baseUrl : null, |
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userName : null, |
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password : null, |
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xmlNamespaces : { |
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'DAV:' : 'd' |
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}, |
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/** |
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* Generates a propFind request. |
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* |
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* @param {string} url Url to do the propfind request on |
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* @param {Array} properties List of properties to retrieve. |
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* @return {Promise} |
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*/ |
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propFind : function(url, properties, depth) { |
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if(typeof depth == "undefined") { |
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depth = 0; |
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} |
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var headers = { |
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Depth : depth, |
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'Content-Type' : 'application/xml; charset=utf-8' |
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}; |
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var body = |
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'<?xml version="1.0"?>\n' + |
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'<d:propfind '; |
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var namespace; |
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for (namespace in this.xmlNamespaces) { |
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body += ' xmlns:' + this.xmlNamespaces[namespace] + '="' + namespace + '"'; |
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} |
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body += '>\n' + |
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' <d:prop>\n'; |
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for(var ii in properties) { |
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var property = this.parseClarkNotation(properties[ii]); |
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if (this.xmlNamespaces[property.namespace]) { |
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body+=' <' + this.xmlNamespaces[property.namespace] + ':' + property.name + ' />\n'; |
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} else { |
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body+=' <x:' + property.name + ' xmlns:x="' + property.namespace + '" />\n'; |
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} |
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|
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} |
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body+=' </d:prop>\n'; |
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body+='</d:propfind>'; |
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|
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return this.request('PROPFIND', url, headers, body).then( |
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function(result) { |
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|
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var resultBody = this.parseMultiStatus(result.body); |
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if (depth===0) { |
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return { |
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status: result.status, |
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body: resultBody[0], |
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xhr: result.xhr |
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}; |
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} else { |
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return { |
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status: result.status, |
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body: resultBody, |
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xhr: result.xhr |
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}; |
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} |
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|
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}.bind(this) |
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); |
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}, |
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/** |
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* Performs a HTTP request, and returns a Promise |
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* |
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* @param {string} method HTTP method |
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* @param {string} url Relative or absolute url |
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* @param {Object} headers HTTP headers as an object. |
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* @param {string} body HTTP request body. |
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* @return {Promise} |
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*/ |
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request : function(method, url, headers, body) { |
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var xhr = this.xhrProvider(); |
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|
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if (this.userName) { |
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headers['Authorization'] = 'Basic ' + btoa(this.userName + ':' + this.password); |
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// xhr.open(method, this.resolveUrl(url), true, this.userName, this.password);
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} |
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xhr.open(method, this.resolveUrl(url), true); |
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var ii; |
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for(ii in headers) { |
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xhr.setRequestHeader(ii, headers[ii]); |
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} |
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xhr.send(body); |
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return new Promise(function(fulfill, reject) { |
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xhr.onreadystatechange = function() { |
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if (xhr.readyState !== 4) { |
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return; |
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} |
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fulfill({ |
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body: xhr.response, |
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status: xhr.status, |
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xhr: xhr |
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}); |
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}; |
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xhr.ontimeout = function() { |
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reject(new Error('Timeout exceeded')); |
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}; |
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}); |
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}, |
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/** |
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* Returns an XMLHttpRequest object. |
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* |
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* This is in its own method, so it can be easily overridden. |
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* |
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* @return {XMLHttpRequest} |
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*/ |
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xhrProvider : function() { |
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return new XMLHttpRequest(); |
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}, |
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/** |
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* Parses a multi-status response body. |
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* |
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* @param {string} xmlBody |
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* @param {Array} |
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*/ |
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parseMultiStatus : function(xmlBody) { |
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|
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var parser = new DOMParser(); |
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var doc = parser.parseFromString(xmlBody, "application/xml"); |
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|
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var resolver = function(foo) { |
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var ii; |
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for(ii in this.xmlNamespaces) { |
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if (this.xmlNamespaces[ii] === foo) { |
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return ii; |
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} |
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} |
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}.bind(this); |
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var responseIterator = doc.evaluate('/d:multistatus/d:response', doc, resolver); |
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var result = []; |
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var responseNode = responseIterator.iterateNext(); |
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while(responseNode) { |
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var response = { |
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href : null, |
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propStat : [] |
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}; |
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|
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response.href = doc.evaluate('string(d:href)', responseNode, resolver).stringValue; |
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var propStatIterator = doc.evaluate('d:propstat', responseNode, resolver); |
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var propStatNode = propStatIterator.iterateNext(); |
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while(propStatNode) { |
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var propStat = { |
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status : doc.evaluate('string(d:status)', propStatNode, resolver).stringValue, |
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properties : [], |
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}; |
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|
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var propIterator = doc.evaluate('d:prop/*', propStatNode, resolver); |
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|
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var propNode = propIterator.iterateNext(); |
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while(propNode) { |
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var content = propNode.textContent; |
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if (!content && propNode.hasChildNodes()) { |
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content = propNode.childNodes; |
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} |
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|
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propStat.properties['{' + propNode.namespaceURI + '}' + propNode.localName] = content; |
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propNode = propIterator.iterateNext(); |
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} |
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response.propStat.push(propStat); |
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propStatNode = propStatIterator.iterateNext(); |
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} |
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result.push(response); |
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responseNode = responseIterator.iterateNext(); |
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} |
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return result; |
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|
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}, |
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|
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/** |
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* Takes a relative url, and maps it to an absolute url, using the baseUrl |
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* |
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* @param {string} url |
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* @return {string} |
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*/ |
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resolveUrl : function(url) { |
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|
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// Note: this is rudamentary.. not sure yet if it handles every case.
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if (/^https?:\/\//i.test(url)) { |
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// absolute
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return url; |
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} |
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|
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var baseParts = this.parseUrl(this.baseUrl); |
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if (url.charAt('/')) { |
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// Url starts with a slash
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return baseParts.root + url; |
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} |
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|
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// Url does not start with a slash, we need grab the base url right up until the last slash.
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var newUrl = baseParts.root + '/'; |
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if (baseParts.path.lastIndexOf('/')!==-1) { |
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newUrl = newUrl = baseParts.path.subString(0, baseParts.path.lastIndexOf('/')) + '/'; |
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} |
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newUrl+=url; |
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return url; |
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|
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}, |
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|
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/** |
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* Parses a url and returns its individual components. |
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* |
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* @param {String} url |
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* @return {Object} |
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*/ |
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parseUrl : function(url) { |
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|
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var parts = url.match(/^(?:([A-Za-z]+):)?(\/{0,3})([0-9.\-A-Za-z]+)(?::(\d+))?(?:\/([^?#]*))?(?:\?([^#]*))?(?:#(.*))?$/); |
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var result = { |
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url : parts[0], |
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scheme : parts[1], |
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host : parts[3], |
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port : parts[4], |
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path : parts[5], |
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query : parts[6], |
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fragment : parts[7], |
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}; |
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result.root = |
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result.scheme + '://' + |
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result.host + |
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(result.port ? ':' + result.port : ''); |
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|
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return result; |
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|
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}, |
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|
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parseClarkNotation : function(propertyName) { |
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|
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var result = propertyName.match(/^{([^}]+)}(.*)$/); |
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if (!result) { |
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return; |
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} |
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|
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return { |
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name : result[2], |
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namespace : result[1] |
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}; |
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|
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} |
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|
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}; |
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|
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@ -0,0 +1,40 @@ |
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{ |
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"name": "es6-promise", |
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"namespace": "Promise", |
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"version": "2.3.0", |
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"description": "A polyfill for ES6-style Promises, tracking rsvp", |
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"authors": [ |
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"Stefan Penner <stefan.penner@gmail.com>" |
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], |
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"main": "dist/es6-promise.js", |
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"keywords": [ |
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"promise" |
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], |
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"repository": { |
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"type": "git", |
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"url": "git://github.com/jakearchibald/ES6-Promises.git" |
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}, |
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"bugs": { |
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"url": "https://github.com/jakearchibald/ES6-Promises/issues" |
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}, |
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"license": "MIT", |
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"ignore": [ |
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"node_modules", |
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"bower_components", |
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"test", |
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"tests", |
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"vendor", |
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"tasks" |
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], |
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"homepage": "https://github.com/jakearchibald/es6-promise", |
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"_release": "2.3.0", |
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"_resolution": { |
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"type": "version", |
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"tag": "2.3.0", |
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"commit": "fcbab11a1a981eb2290bfff89017cb764335a2a5" |
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}, |
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"_source": "https://github.com/jakearchibald/es6-promise.git", |
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"_target": "~2.3.0", |
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"_originalSource": "https://github.com/jakearchibald/es6-promise.git", |
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"_direct": true |
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} |
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@ -0,0 +1,11 @@ |
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/node_modules/ |
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/tmp |
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/tasks |
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/test |
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/vendor |
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/.jshintrc |
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/.npmignore |
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/.travis.yml |
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/Gruntfile.js |
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/component.json |
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/index.html |
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@ -0,0 +1,17 @@ |
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{ |
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"non-interactive": true, |
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"dry-run": false, |
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"verbose": false, |
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"force": false, |
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"pkgFiles": ["package.json", "bower.json"], |
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"increment": "patch", |
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"commitMessage": "Release %s", |
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"tagName": "%s", |
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"tagAnnotation": "Release %s", |
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"buildCommand": "npm run-script build-all", |
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"distRepo": "git@github.com:components/rsvp.js.git", |
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"distStageDir": "tmp/stage", |
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"distBase": "dist", |
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"distFiles": ["**/*", "../package.json", "../bower.json"], |
|||
"publish": false |
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} |
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@ -0,0 +1,11 @@ |
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/node_modules/ |
|||
/tmp |
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/tasks |
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/test |
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/vendor |
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/.jshintrc |
|||
/.npmignore |
|||
/.travis.yml |
|||
/Gruntfile.js |
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/component.json |
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/index.html |
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@ -0,0 +1,19 @@ |
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Copyright (c) 2014 Yehuda Katz, Tom Dale, Stefan Penner and contributors |
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|
|||
Permission is hereby granted, free of charge, to any person obtaining a copy of |
|||
this software and associated documentation files (the "Software"), to deal in |
|||
the Software without restriction, including without limitation the rights to |
|||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
|||
of the Software, and to permit persons to whom the Software is furnished to do |
|||
so, subject to the following conditions: |
|||
|
|||
The above copyright notice and this permission notice shall be included in all |
|||
copies or substantial portions of the Software. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
|||
SOFTWARE. |
|||
@ -0,0 +1,972 @@ |
|||
/*! |
|||
* @overview es6-promise - a tiny implementation of Promises/A+. |
|||
* @copyright Copyright (c) 2014 Yehuda Katz, Tom Dale, Stefan Penner and contributors (Conversion to ES6 API by Jake Archibald) |
|||
* @license Licensed under MIT license |
|||
* See https://raw.githubusercontent.com/jakearchibald/es6-promise/master/LICENSE
|
|||
* @version 2.3.0 |
|||
*/ |
|||
|
|||
(function() { |
|||
"use strict"; |
|||
function lib$es6$promise$utils$$objectOrFunction(x) { |
|||
return typeof x === 'function' || (typeof x === 'object' && x !== null); |
|||
} |
|||
|
|||
function lib$es6$promise$utils$$isFunction(x) { |
|||
return typeof x === 'function'; |
|||
} |
|||
|
|||
function lib$es6$promise$utils$$isMaybeThenable(x) { |
|||
return typeof x === 'object' && x !== null; |
|||
} |
|||
|
|||
var lib$es6$promise$utils$$_isArray; |
|||
if (!Array.isArray) { |
|||
lib$es6$promise$utils$$_isArray = function (x) { |
|||
return Object.prototype.toString.call(x) === '[object Array]'; |
|||
}; |
|||
} else { |
|||
lib$es6$promise$utils$$_isArray = Array.isArray; |
|||
} |
|||
|
|||
var lib$es6$promise$utils$$isArray = lib$es6$promise$utils$$_isArray; |
|||
var lib$es6$promise$asap$$len = 0; |
|||
var lib$es6$promise$asap$$toString = {}.toString; |
|||
var lib$es6$promise$asap$$vertxNext; |
|||
var lib$es6$promise$asap$$customSchedulerFn; |
|||
|
|||
var lib$es6$promise$asap$$asap = function asap(callback, arg) { |
|||
lib$es6$promise$asap$$queue[lib$es6$promise$asap$$len] = callback; |
|||
lib$es6$promise$asap$$queue[lib$es6$promise$asap$$len + 1] = arg; |
|||
lib$es6$promise$asap$$len += 2; |
|||
if (lib$es6$promise$asap$$len === 2) { |
|||
// If len is 2, that means that we need to schedule an async flush.
|
|||
// If additional callbacks are queued before the queue is flushed, they
|
|||
// will be processed by this flush that we are scheduling.
|
|||
if (lib$es6$promise$asap$$customSchedulerFn) { |
|||
lib$es6$promise$asap$$customSchedulerFn(lib$es6$promise$asap$$flush); |
|||
} else { |
|||
lib$es6$promise$asap$$scheduleFlush(); |
|||
} |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$asap$$setScheduler(scheduleFn) { |
|||
lib$es6$promise$asap$$customSchedulerFn = scheduleFn; |
|||
} |
|||
|
|||
function lib$es6$promise$asap$$setAsap(asapFn) { |
|||
lib$es6$promise$asap$$asap = asapFn; |
|||
} |
|||
|
|||
var lib$es6$promise$asap$$browserWindow = (typeof window !== 'undefined') ? window : undefined; |
|||
var lib$es6$promise$asap$$browserGlobal = lib$es6$promise$asap$$browserWindow || {}; |
|||
var lib$es6$promise$asap$$BrowserMutationObserver = lib$es6$promise$asap$$browserGlobal.MutationObserver || lib$es6$promise$asap$$browserGlobal.WebKitMutationObserver; |
|||
var lib$es6$promise$asap$$isNode = typeof process !== 'undefined' && {}.toString.call(process) === '[object process]'; |
|||
|
|||
// test for web worker but not in IE10
|
|||
var lib$es6$promise$asap$$isWorker = typeof Uint8ClampedArray !== 'undefined' && |
|||
typeof importScripts !== 'undefined' && |
|||
typeof MessageChannel !== 'undefined'; |
|||
|
|||
// node
|
|||
function lib$es6$promise$asap$$useNextTick() { |
|||
var nextTick = process.nextTick; |
|||
// node version 0.10.x displays a deprecation warning when nextTick is used recursively
|
|||
// setImmediate should be used instead instead
|
|||
var version = process.versions.node.match(/^(?:(\d+)\.)?(?:(\d+)\.)?(\*|\d+)$/); |
|||
if (Array.isArray(version) && version[1] === '0' && version[2] === '10') { |
|||
nextTick = setImmediate; |
|||
} |
|||
return function() { |
|||
nextTick(lib$es6$promise$asap$$flush); |
|||
}; |
|||
} |
|||
|
|||
// vertx
|
|||
function lib$es6$promise$asap$$useVertxTimer() { |
|||
return function() { |
|||
lib$es6$promise$asap$$vertxNext(lib$es6$promise$asap$$flush); |
|||
}; |
|||
} |
|||
|
|||
function lib$es6$promise$asap$$useMutationObserver() { |
|||
var iterations = 0; |
|||
var observer = new lib$es6$promise$asap$$BrowserMutationObserver(lib$es6$promise$asap$$flush); |
|||
var node = document.createTextNode(''); |
|||
observer.observe(node, { characterData: true }); |
|||
|
|||
return function() { |
|||
node.data = (iterations = ++iterations % 2); |
|||
}; |
|||
} |
|||
|
|||
// web worker
|
|||
function lib$es6$promise$asap$$useMessageChannel() { |
|||
var channel = new MessageChannel(); |
|||
channel.port1.onmessage = lib$es6$promise$asap$$flush; |
|||
return function () { |
|||
channel.port2.postMessage(0); |
|||
}; |
|||
} |
|||
|
|||
function lib$es6$promise$asap$$useSetTimeout() { |
|||
return function() { |
|||
setTimeout(lib$es6$promise$asap$$flush, 1); |
|||
}; |
|||
} |
|||
|
|||
var lib$es6$promise$asap$$queue = new Array(1000); |
|||
function lib$es6$promise$asap$$flush() { |
|||
for (var i = 0; i < lib$es6$promise$asap$$len; i+=2) { |
|||
var callback = lib$es6$promise$asap$$queue[i]; |
|||
var arg = lib$es6$promise$asap$$queue[i+1]; |
|||
|
|||
callback(arg); |
|||
|
|||
lib$es6$promise$asap$$queue[i] = undefined; |
|||
lib$es6$promise$asap$$queue[i+1] = undefined; |
|||
} |
|||
|
|||
lib$es6$promise$asap$$len = 0; |
|||
} |
|||
|
|||
function lib$es6$promise$asap$$attemptVertex() { |
|||
try { |
|||
var r = require; |
|||
var vertx = r('vertx'); |
|||
lib$es6$promise$asap$$vertxNext = vertx.runOnLoop || vertx.runOnContext; |
|||
return lib$es6$promise$asap$$useVertxTimer(); |
|||
} catch(e) { |
|||
return lib$es6$promise$asap$$useSetTimeout(); |
|||
} |
|||
} |
|||
|
|||
var lib$es6$promise$asap$$scheduleFlush; |
|||
// Decide what async method to use to triggering processing of queued callbacks:
|
|||
if (lib$es6$promise$asap$$isNode) { |
|||
lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useNextTick(); |
|||
} else if (lib$es6$promise$asap$$BrowserMutationObserver) { |
|||
lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useMutationObserver(); |
|||
} else if (lib$es6$promise$asap$$isWorker) { |
|||
lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useMessageChannel(); |
|||
} else if (lib$es6$promise$asap$$browserWindow === undefined && typeof require === 'function') { |
|||
lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$attemptVertex(); |
|||
} else { |
|||
lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useSetTimeout(); |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$noop() {} |
|||
|
|||
var lib$es6$promise$$internal$$PENDING = void 0; |
|||
var lib$es6$promise$$internal$$FULFILLED = 1; |
|||
var lib$es6$promise$$internal$$REJECTED = 2; |
|||
|
|||
var lib$es6$promise$$internal$$GET_THEN_ERROR = new lib$es6$promise$$internal$$ErrorObject(); |
|||
|
|||
function lib$es6$promise$$internal$$selfFullfillment() { |
|||
return new TypeError("You cannot resolve a promise with itself"); |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$cannotReturnOwn() { |
|||
return new TypeError('A promises callback cannot return that same promise.'); |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$getThen(promise) { |
|||
try { |
|||
return promise.then; |
|||
} catch(error) { |
|||
lib$es6$promise$$internal$$GET_THEN_ERROR.error = error; |
|||
return lib$es6$promise$$internal$$GET_THEN_ERROR; |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$tryThen(then, value, fulfillmentHandler, rejectionHandler) { |
|||
try { |
|||
then.call(value, fulfillmentHandler, rejectionHandler); |
|||
} catch(e) { |
|||
return e; |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$handleForeignThenable(promise, thenable, then) { |
|||
lib$es6$promise$asap$$asap(function(promise) { |
|||
var sealed = false; |
|||
var error = lib$es6$promise$$internal$$tryThen(then, thenable, function(value) { |
|||
if (sealed) { return; } |
|||
sealed = true; |
|||
if (thenable !== value) { |
|||
lib$es6$promise$$internal$$resolve(promise, value); |
|||
} else { |
|||
lib$es6$promise$$internal$$fulfill(promise, value); |
|||
} |
|||
}, function(reason) { |
|||
if (sealed) { return; } |
|||
sealed = true; |
|||
|
|||
lib$es6$promise$$internal$$reject(promise, reason); |
|||
}, 'Settle: ' + (promise._label || ' unknown promise')); |
|||
|
|||
if (!sealed && error) { |
|||
sealed = true; |
|||
lib$es6$promise$$internal$$reject(promise, error); |
|||
} |
|||
}, promise); |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$handleOwnThenable(promise, thenable) { |
|||
if (thenable._state === lib$es6$promise$$internal$$FULFILLED) { |
|||
lib$es6$promise$$internal$$fulfill(promise, thenable._result); |
|||
} else if (thenable._state === lib$es6$promise$$internal$$REJECTED) { |
|||
lib$es6$promise$$internal$$reject(promise, thenable._result); |
|||
} else { |
|||
lib$es6$promise$$internal$$subscribe(thenable, undefined, function(value) { |
|||
lib$es6$promise$$internal$$resolve(promise, value); |
|||
}, function(reason) { |
|||
lib$es6$promise$$internal$$reject(promise, reason); |
|||
}); |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$handleMaybeThenable(promise, maybeThenable) { |
|||
if (maybeThenable.constructor === promise.constructor) { |
|||
lib$es6$promise$$internal$$handleOwnThenable(promise, maybeThenable); |
|||
} else { |
|||
var then = lib$es6$promise$$internal$$getThen(maybeThenable); |
|||
|
|||
if (then === lib$es6$promise$$internal$$GET_THEN_ERROR) { |
|||
lib$es6$promise$$internal$$reject(promise, lib$es6$promise$$internal$$GET_THEN_ERROR.error); |
|||
} else if (then === undefined) { |
|||
lib$es6$promise$$internal$$fulfill(promise, maybeThenable); |
|||
} else if (lib$es6$promise$utils$$isFunction(then)) { |
|||
lib$es6$promise$$internal$$handleForeignThenable(promise, maybeThenable, then); |
|||
} else { |
|||
lib$es6$promise$$internal$$fulfill(promise, maybeThenable); |
|||
} |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$resolve(promise, value) { |
|||
if (promise === value) { |
|||
lib$es6$promise$$internal$$reject(promise, lib$es6$promise$$internal$$selfFullfillment()); |
|||
} else if (lib$es6$promise$utils$$objectOrFunction(value)) { |
|||
lib$es6$promise$$internal$$handleMaybeThenable(promise, value); |
|||
} else { |
|||
lib$es6$promise$$internal$$fulfill(promise, value); |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$publishRejection(promise) { |
|||
if (promise._onerror) { |
|||
promise._onerror(promise._result); |
|||
} |
|||
|
|||
lib$es6$promise$$internal$$publish(promise); |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$fulfill(promise, value) { |
|||
if (promise._state !== lib$es6$promise$$internal$$PENDING) { return; } |
|||
|
|||
promise._result = value; |
|||
promise._state = lib$es6$promise$$internal$$FULFILLED; |
|||
|
|||
if (promise._subscribers.length !== 0) { |
|||
lib$es6$promise$asap$$asap(lib$es6$promise$$internal$$publish, promise); |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$reject(promise, reason) { |
|||
if (promise._state !== lib$es6$promise$$internal$$PENDING) { return; } |
|||
promise._state = lib$es6$promise$$internal$$REJECTED; |
|||
promise._result = reason; |
|||
|
|||
lib$es6$promise$asap$$asap(lib$es6$promise$$internal$$publishRejection, promise); |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$subscribe(parent, child, onFulfillment, onRejection) { |
|||
var subscribers = parent._subscribers; |
|||
var length = subscribers.length; |
|||
|
|||
parent._onerror = null; |
|||
|
|||
subscribers[length] = child; |
|||
subscribers[length + lib$es6$promise$$internal$$FULFILLED] = onFulfillment; |
|||
subscribers[length + lib$es6$promise$$internal$$REJECTED] = onRejection; |
|||
|
|||
if (length === 0 && parent._state) { |
|||
lib$es6$promise$asap$$asap(lib$es6$promise$$internal$$publish, parent); |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$publish(promise) { |
|||
var subscribers = promise._subscribers; |
|||
var settled = promise._state; |
|||
|
|||
if (subscribers.length === 0) { return; } |
|||
|
|||
var child, callback, detail = promise._result; |
|||
|
|||
for (var i = 0; i < subscribers.length; i += 3) { |
|||
child = subscribers[i]; |
|||
callback = subscribers[i + settled]; |
|||
|
|||
if (child) { |
|||
lib$es6$promise$$internal$$invokeCallback(settled, child, callback, detail); |
|||
} else { |
|||
callback(detail); |
|||
} |
|||
} |
|||
|
|||
promise._subscribers.length = 0; |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$ErrorObject() { |
|||
this.error = null; |
|||
} |
|||
|
|||
var lib$es6$promise$$internal$$TRY_CATCH_ERROR = new lib$es6$promise$$internal$$ErrorObject(); |
|||
|
|||
function lib$es6$promise$$internal$$tryCatch(callback, detail) { |
|||
try { |
|||
return callback(detail); |
|||
} catch(e) { |
|||
lib$es6$promise$$internal$$TRY_CATCH_ERROR.error = e; |
|||
return lib$es6$promise$$internal$$TRY_CATCH_ERROR; |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$invokeCallback(settled, promise, callback, detail) { |
|||
var hasCallback = lib$es6$promise$utils$$isFunction(callback), |
|||
value, error, succeeded, failed; |
|||
|
|||
if (hasCallback) { |
|||
value = lib$es6$promise$$internal$$tryCatch(callback, detail); |
|||
|
|||
if (value === lib$es6$promise$$internal$$TRY_CATCH_ERROR) { |
|||
failed = true; |
|||
error = value.error; |
|||
value = null; |
|||
} else { |
|||
succeeded = true; |
|||
} |
|||
|
|||
if (promise === value) { |
|||
lib$es6$promise$$internal$$reject(promise, lib$es6$promise$$internal$$cannotReturnOwn()); |
|||
return; |
|||
} |
|||
|
|||
} else { |
|||
value = detail; |
|||
succeeded = true; |
|||
} |
|||
|
|||
if (promise._state !== lib$es6$promise$$internal$$PENDING) { |
|||
// noop
|
|||
} else if (hasCallback && succeeded) { |
|||
lib$es6$promise$$internal$$resolve(promise, value); |
|||
} else if (failed) { |
|||
lib$es6$promise$$internal$$reject(promise, error); |
|||
} else if (settled === lib$es6$promise$$internal$$FULFILLED) { |
|||
lib$es6$promise$$internal$$fulfill(promise, value); |
|||
} else if (settled === lib$es6$promise$$internal$$REJECTED) { |
|||
lib$es6$promise$$internal$$reject(promise, value); |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$$internal$$initializePromise(promise, resolver) { |
|||
try { |
|||
resolver(function resolvePromise(value){ |
|||
lib$es6$promise$$internal$$resolve(promise, value); |
|||
}, function rejectPromise(reason) { |
|||
lib$es6$promise$$internal$$reject(promise, reason); |
|||
}); |
|||
} catch(e) { |
|||
lib$es6$promise$$internal$$reject(promise, e); |
|||
} |
|||
} |
|||
|
|||
function lib$es6$promise$enumerator$$Enumerator(Constructor, input) { |
|||
var enumerator = this; |
|||
|
|||
enumerator._instanceConstructor = Constructor; |
|||
enumerator.promise = new Constructor(lib$es6$promise$$internal$$noop); |
|||
|
|||
if (enumerator._validateInput(input)) { |
|||
enumerator._input = input; |
|||
enumerator.length = input.length; |
|||
enumerator._remaining = input.length; |
|||
|
|||
enumerator._init(); |
|||
|
|||
if (enumerator.length === 0) { |
|||
lib$es6$promise$$internal$$fulfill(enumerator.promise, enumerator._result); |
|||
} else { |
|||
enumerator.length = enumerator.length || 0; |
|||
enumerator._enumerate(); |
|||
if (enumerator._remaining === 0) { |
|||
lib$es6$promise$$internal$$fulfill(enumerator.promise, enumerator._result); |
|||
} |
|||
} |
|||
} else { |
|||
lib$es6$promise$$internal$$reject(enumerator.promise, enumerator._validationError()); |
|||
} |
|||
} |
|||
|
|||
lib$es6$promise$enumerator$$Enumerator.prototype._validateInput = function(input) { |
|||
return lib$es6$promise$utils$$isArray(input); |
|||
}; |
|||
|
|||
lib$es6$promise$enumerator$$Enumerator.prototype._validationError = function() { |
|||
return new Error('Array Methods must be provided an Array'); |
|||
}; |
|||
|
|||
lib$es6$promise$enumerator$$Enumerator.prototype._init = function() { |
|||
this._result = new Array(this.length); |
|||
}; |
|||
|
|||
var lib$es6$promise$enumerator$$default = lib$es6$promise$enumerator$$Enumerator; |
|||
|
|||
lib$es6$promise$enumerator$$Enumerator.prototype._enumerate = function() { |
|||
var enumerator = this; |
|||
|
|||
var length = enumerator.length; |
|||
var promise = enumerator.promise; |
|||
var input = enumerator._input; |
|||
|
|||
for (var i = 0; promise._state === lib$es6$promise$$internal$$PENDING && i < length; i++) { |
|||
enumerator._eachEntry(input[i], i); |
|||
} |
|||
}; |
|||
|
|||
lib$es6$promise$enumerator$$Enumerator.prototype._eachEntry = function(entry, i) { |
|||
var enumerator = this; |
|||
var c = enumerator._instanceConstructor; |
|||
|
|||
if (lib$es6$promise$utils$$isMaybeThenable(entry)) { |
|||
if (entry.constructor === c && entry._state !== lib$es6$promise$$internal$$PENDING) { |
|||
entry._onerror = null; |
|||
enumerator._settledAt(entry._state, i, entry._result); |
|||
} else { |
|||
enumerator._willSettleAt(c.resolve(entry), i); |
|||
} |
|||
} else { |
|||
enumerator._remaining--; |
|||
enumerator._result[i] = entry; |
|||
} |
|||
}; |
|||
|
|||
lib$es6$promise$enumerator$$Enumerator.prototype._settledAt = function(state, i, value) { |
|||
var enumerator = this; |
|||
var promise = enumerator.promise; |
|||
|
|||
if (promise._state === lib$es6$promise$$internal$$PENDING) { |
|||
enumerator._remaining--; |
|||
|
|||
if (state === lib$es6$promise$$internal$$REJECTED) { |
|||
lib$es6$promise$$internal$$reject(promise, value); |
|||
} else { |
|||
enumerator._result[i] = value; |
|||
} |
|||
} |
|||
|
|||
if (enumerator._remaining === 0) { |
|||
lib$es6$promise$$internal$$fulfill(promise, enumerator._result); |
|||
} |
|||
}; |
|||
|
|||
lib$es6$promise$enumerator$$Enumerator.prototype._willSettleAt = function(promise, i) { |
|||
var enumerator = this; |
|||
|
|||
lib$es6$promise$$internal$$subscribe(promise, undefined, function(value) { |
|||
enumerator._settledAt(lib$es6$promise$$internal$$FULFILLED, i, value); |
|||
}, function(reason) { |
|||
enumerator._settledAt(lib$es6$promise$$internal$$REJECTED, i, reason); |
|||
}); |
|||
}; |
|||
function lib$es6$promise$promise$all$$all(entries) { |
|||
return new lib$es6$promise$enumerator$$default(this, entries).promise; |
|||
} |
|||
var lib$es6$promise$promise$all$$default = lib$es6$promise$promise$all$$all; |
|||
function lib$es6$promise$promise$race$$race(entries) { |
|||
/*jshint validthis:true */ |
|||
var Constructor = this; |
|||
|
|||
var promise = new Constructor(lib$es6$promise$$internal$$noop); |
|||
|
|||
if (!lib$es6$promise$utils$$isArray(entries)) { |
|||
lib$es6$promise$$internal$$reject(promise, new TypeError('You must pass an array to race.')); |
|||
return promise; |
|||
} |
|||
|
|||
var length = entries.length; |
|||
|
|||
function onFulfillment(value) { |
|||
lib$es6$promise$$internal$$resolve(promise, value); |
|||
} |
|||
|
|||
function onRejection(reason) { |
|||
lib$es6$promise$$internal$$reject(promise, reason); |
|||
} |
|||
|
|||
for (var i = 0; promise._state === lib$es6$promise$$internal$$PENDING && i < length; i++) { |
|||
lib$es6$promise$$internal$$subscribe(Constructor.resolve(entries[i]), undefined, onFulfillment, onRejection); |
|||
} |
|||
|
|||
return promise; |
|||
} |
|||
var lib$es6$promise$promise$race$$default = lib$es6$promise$promise$race$$race; |
|||
function lib$es6$promise$promise$resolve$$resolve(object) { |
|||
/*jshint validthis:true */ |
|||
var Constructor = this; |
|||
|
|||
if (object && typeof object === 'object' && object.constructor === Constructor) { |
|||
return object; |
|||
} |
|||
|
|||
var promise = new Constructor(lib$es6$promise$$internal$$noop); |
|||
lib$es6$promise$$internal$$resolve(promise, object); |
|||
return promise; |
|||
} |
|||
var lib$es6$promise$promise$resolve$$default = lib$es6$promise$promise$resolve$$resolve; |
|||
function lib$es6$promise$promise$reject$$reject(reason) { |
|||
/*jshint validthis:true */ |
|||
var Constructor = this; |
|||
var promise = new Constructor(lib$es6$promise$$internal$$noop); |
|||
lib$es6$promise$$internal$$reject(promise, reason); |
|||
return promise; |
|||
} |
|||
var lib$es6$promise$promise$reject$$default = lib$es6$promise$promise$reject$$reject; |
|||
|
|||
var lib$es6$promise$promise$$counter = 0; |
|||
|
|||
function lib$es6$promise$promise$$needsResolver() { |
|||
throw new TypeError('You must pass a resolver function as the first argument to the promise constructor'); |
|||
} |
|||
|
|||
function lib$es6$promise$promise$$needsNew() { |
|||
throw new TypeError("Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function."); |
|||
} |
|||
|
|||
var lib$es6$promise$promise$$default = lib$es6$promise$promise$$Promise; |
|||
/** |
|||
Promise objects represent the eventual result of an asynchronous operation. The |
|||
primary way of interacting with a promise is through its `then` method, which |
|||
registers callbacks to receive either a promise's eventual value or the reason |
|||
why the promise cannot be fulfilled. |
|||
|
|||
Terminology |
|||
----------- |
|||
|
|||
- `promise` is an object or function with a `then` method whose behavior conforms to this specification. |
|||
- `thenable` is an object or function that defines a `then` method. |
|||
- `value` is any legal JavaScript value (including undefined, a thenable, or a promise). |
|||
- `exception` is a value that is thrown using the throw statement. |
|||
- `reason` is a value that indicates why a promise was rejected. |
|||
- `settled` the final resting state of a promise, fulfilled or rejected. |
|||
|
|||
A promise can be in one of three states: pending, fulfilled, or rejected. |
|||
|
|||
Promises that are fulfilled have a fulfillment value and are in the fulfilled |
|||
state. Promises that are rejected have a rejection reason and are in the |
|||
rejected state. A fulfillment value is never a thenable. |
|||
|
|||
Promises can also be said to *resolve* a value. If this value is also a |
|||
promise, then the original promise's settled state will match the value's |
|||
settled state. So a promise that *resolves* a promise that rejects will |
|||
itself reject, and a promise that *resolves* a promise that fulfills will |
|||
itself fulfill. |
|||
|
|||
|
|||
Basic Usage: |
|||
------------ |
|||
|
|||
```js
|
|||
var promise = new Promise(function(resolve, reject) { |
|||
// on success
|
|||
resolve(value); |
|||
|
|||
// on failure
|
|||
reject(reason); |
|||
}); |
|||
|
|||
promise.then(function(value) { |
|||
// on fulfillment
|
|||
}, function(reason) { |
|||
// on rejection
|
|||
}); |
|||
```
|
|||
|
|||
Advanced Usage: |
|||
--------------- |
|||
|
|||
Promises shine when abstracting away asynchronous interactions such as |
|||
`XMLHttpRequest`s. |
|||
|
|||
```js
|
|||
function getJSON(url) { |
|||
return new Promise(function(resolve, reject){ |
|||
var xhr = new XMLHttpRequest(); |
|||
|
|||
xhr.open('GET', url); |
|||
xhr.onreadystatechange = handler; |
|||
xhr.responseType = 'json'; |
|||
xhr.setRequestHeader('Accept', 'application/json'); |
|||
xhr.send(); |
|||
|
|||
function handler() { |
|||
if (this.readyState === this.DONE) { |
|||
if (this.status === 200) { |
|||
resolve(this.response); |
|||
} else { |
|||
reject(new Error('getJSON: `' + url + '` failed with status: [' + this.status + ']')); |
|||
} |
|||
} |
|||
}; |
|||
}); |
|||
} |
|||
|
|||
getJSON('/posts.json').then(function(json) { |
|||
// on fulfillment
|
|||
}, function(reason) { |
|||
// on rejection
|
|||
}); |
|||
```
|
|||
|
|||
Unlike callbacks, promises are great composable primitives. |
|||
|
|||
```js
|
|||
Promise.all([ |
|||
getJSON('/posts'), |
|||
getJSON('/comments') |
|||
]).then(function(values){ |
|||
values[0] // => postsJSON
|
|||
values[1] // => commentsJSON
|
|||
|
|||
return values; |
|||
}); |
|||
```
|
|||
|
|||
@class Promise |
|||
@param {function} resolver |
|||
Useful for tooling. |
|||
@constructor |
|||
*/ |
|||
function lib$es6$promise$promise$$Promise(resolver) { |
|||
this._id = lib$es6$promise$promise$$counter++; |
|||
this._state = undefined; |
|||
this._result = undefined; |
|||
this._subscribers = []; |
|||
|
|||
if (lib$es6$promise$$internal$$noop !== resolver) { |
|||
if (!lib$es6$promise$utils$$isFunction(resolver)) { |
|||
lib$es6$promise$promise$$needsResolver(); |
|||
} |
|||
|
|||
if (!(this instanceof lib$es6$promise$promise$$Promise)) { |
|||
lib$es6$promise$promise$$needsNew(); |
|||
} |
|||
|
|||
lib$es6$promise$$internal$$initializePromise(this, resolver); |
|||
} |
|||
} |
|||
|
|||
lib$es6$promise$promise$$Promise.all = lib$es6$promise$promise$all$$default; |
|||
lib$es6$promise$promise$$Promise.race = lib$es6$promise$promise$race$$default; |
|||
lib$es6$promise$promise$$Promise.resolve = lib$es6$promise$promise$resolve$$default; |
|||
lib$es6$promise$promise$$Promise.reject = lib$es6$promise$promise$reject$$default; |
|||
lib$es6$promise$promise$$Promise._setScheduler = lib$es6$promise$asap$$setScheduler; |
|||
lib$es6$promise$promise$$Promise._setAsap = lib$es6$promise$asap$$setAsap; |
|||
lib$es6$promise$promise$$Promise._asap = lib$es6$promise$asap$$asap; |
|||
|
|||
lib$es6$promise$promise$$Promise.prototype = { |
|||
constructor: lib$es6$promise$promise$$Promise, |
|||
|
|||
/** |
|||
The primary way of interacting with a promise is through its `then` method, |
|||
which registers callbacks to receive either a promise's eventual value or the |
|||
reason why the promise cannot be fulfilled. |
|||
|
|||
```js
|
|||
findUser().then(function(user){ |
|||
// user is available
|
|||
}, function(reason){ |
|||
// user is unavailable, and you are given the reason why
|
|||
}); |
|||
```
|
|||
|
|||
Chaining |
|||
-------- |
|||
|
|||
The return value of `then` is itself a promise. This second, 'downstream' |
|||
promise is resolved with the return value of the first promise's fulfillment |
|||
or rejection handler, or rejected if the handler throws an exception. |
|||
|
|||
```js
|
|||
findUser().then(function (user) { |
|||
return user.name; |
|||
}, function (reason) { |
|||
return 'default name'; |
|||
}).then(function (userName) { |
|||
// If `findUser` fulfilled, `userName` will be the user's name, otherwise it
|
|||
// will be `'default name'`
|
|||
}); |
|||
|
|||
findUser().then(function (user) { |
|||
throw new Error('Found user, but still unhappy'); |
|||
}, function (reason) { |
|||
throw new Error('`findUser` rejected and we're unhappy'); |
|||
}).then(function (value) { |
|||
// never reached
|
|||
}, function (reason) { |
|||
// if `findUser` fulfilled, `reason` will be 'Found user, but still unhappy'.
|
|||
// If `findUser` rejected, `reason` will be '`findUser` rejected and we're unhappy'.
|
|||
}); |
|||
```
|
|||
If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream. |
|||
|
|||
```js
|
|||
findUser().then(function (user) { |
|||
throw new PedagogicalException('Upstream error'); |
|||
}).then(function (value) { |
|||
// never reached
|
|||
}).then(function (value) { |
|||
// never reached
|
|||
}, function (reason) { |
|||
// The `PedgagocialException` is propagated all the way down to here
|
|||
}); |
|||
```
|
|||
|
|||
Assimilation |
|||
------------ |
|||
|
|||
Sometimes the value you want to propagate to a downstream promise can only be |
|||
retrieved asynchronously. This can be achieved by returning a promise in the |
|||
fulfillment or rejection handler. The downstream promise will then be pending |
|||
until the returned promise is settled. This is called *assimilation*. |
|||
|
|||
```js
|
|||
findUser().then(function (user) { |
|||
return findCommentsByAuthor(user); |
|||
}).then(function (comments) { |
|||
// The user's comments are now available
|
|||
}); |
|||
```
|
|||
|
|||
If the assimliated promise rejects, then the downstream promise will also reject. |
|||
|
|||
```js
|
|||
findUser().then(function (user) { |
|||
return findCommentsByAuthor(user); |
|||
}).then(function (comments) { |
|||
// If `findCommentsByAuthor` fulfills, we'll have the value here
|
|||
}, function (reason) { |
|||
// If `findCommentsByAuthor` rejects, we'll have the reason here
|
|||
}); |
|||
```
|
|||
|
|||
Simple Example |
|||
-------------- |
|||
|
|||
Synchronous Example |
|||
|
|||
```javascript
|
|||
var result; |
|||
|
|||
try { |
|||
result = findResult(); |
|||
// success
|
|||
} catch(reason) { |
|||
// failure
|
|||
} |
|||
```
|
|||
|
|||
Errback Example |
|||
|
|||
```js
|
|||
findResult(function(result, err){ |
|||
if (err) { |
|||
// failure
|
|||
} else { |
|||
// success
|
|||
} |
|||
}); |
|||
```
|
|||
|
|||
Promise Example; |
|||
|
|||
```javascript
|
|||
findResult().then(function(result){ |
|||
// success
|
|||
}, function(reason){ |
|||
// failure
|
|||
}); |
|||
```
|
|||
|
|||
Advanced Example |
|||
-------------- |
|||
|
|||
Synchronous Example |
|||
|
|||
```javascript
|
|||
var author, books; |
|||
|
|||
try { |
|||
author = findAuthor(); |
|||
books = findBooksByAuthor(author); |
|||
// success
|
|||
} catch(reason) { |
|||
// failure
|
|||
} |
|||
```
|
|||
|
|||
Errback Example |
|||
|
|||
```js
|
|||
|
|||
function foundBooks(books) { |
|||
|
|||
} |
|||
|
|||
function failure(reason) { |
|||
|
|||
} |
|||
|
|||
findAuthor(function(author, err){ |
|||
if (err) { |
|||
failure(err); |
|||
// failure
|
|||
} else { |
|||
try { |
|||
findBoooksByAuthor(author, function(books, err) { |
|||
if (err) { |
|||
failure(err); |
|||
} else { |
|||
try { |
|||
foundBooks(books); |
|||
} catch(reason) { |
|||
failure(reason); |
|||
} |
|||
} |
|||
}); |
|||
} catch(error) { |
|||
failure(err); |
|||
} |
|||
// success
|
|||
} |
|||
}); |
|||
```
|
|||
|
|||
Promise Example; |
|||
|
|||
```javascript
|
|||
findAuthor(). |
|||
then(findBooksByAuthor). |
|||
then(function(books){ |
|||
// found books
|
|||
}).catch(function(reason){ |
|||
// something went wrong
|
|||
}); |
|||
```
|
|||
|
|||
@method then |
|||
@param {Function} onFulfilled |
|||
@param {Function} onRejected |
|||
Useful for tooling. |
|||
@return {Promise} |
|||
*/ |
|||
then: function(onFulfillment, onRejection) { |
|||
var parent = this; |
|||
var state = parent._state; |
|||
|
|||
if (state === lib$es6$promise$$internal$$FULFILLED && !onFulfillment || state === lib$es6$promise$$internal$$REJECTED && !onRejection) { |
|||
return this; |
|||
} |
|||
|
|||
var child = new this.constructor(lib$es6$promise$$internal$$noop); |
|||
var result = parent._result; |
|||
|
|||
if (state) { |
|||
var callback = arguments[state - 1]; |
|||
lib$es6$promise$asap$$asap(function(){ |
|||
lib$es6$promise$$internal$$invokeCallback(state, child, callback, result); |
|||
}); |
|||
} else { |
|||
lib$es6$promise$$internal$$subscribe(parent, child, onFulfillment, onRejection); |
|||
} |
|||
|
|||
return child; |
|||
}, |
|||
|
|||
/** |
|||
`catch` is simply sugar for `then(undefined, onRejection)` which makes it the same |
|||
as the catch block of a try/catch statement. |
|||
|
|||
```js
|
|||
function findAuthor(){ |
|||
throw new Error('couldn't find that author'); |
|||
} |
|||
|
|||
// synchronous
|
|||
try { |
|||
findAuthor(); |
|||
} catch(reason) { |
|||
// something went wrong
|
|||
} |
|||
|
|||
// async with promises
|
|||
findAuthor().catch(function(reason){ |
|||
// something went wrong
|
|||
}); |
|||
```
|
|||
|
|||
@method catch |
|||
@param {Function} onRejection |
|||
Useful for tooling. |
|||
@return {Promise} |
|||
*/ |
|||
'catch': function(onRejection) { |
|||
return this.then(null, onRejection); |
|||
} |
|||
}; |
|||
function lib$es6$promise$polyfill$$polyfill() { |
|||
var local; |
|||
|
|||
if (typeof global !== 'undefined') { |
|||
local = global; |
|||
} else if (typeof self !== 'undefined') { |
|||
local = self; |
|||
} else { |
|||
try { |
|||
local = Function('return this')(); |
|||
} catch (e) { |
|||
throw new Error('polyfill failed because global object is unavailable in this environment'); |
|||
} |
|||
} |
|||
|
|||
var P = local.Promise; |
|||
|
|||
if (P && Object.prototype.toString.call(P.resolve()) === '[object Promise]' && !P.cast) { |
|||
return; |
|||
} |
|||
|
|||
local.Promise = lib$es6$promise$promise$$default; |
|||
} |
|||
var lib$es6$promise$polyfill$$default = lib$es6$promise$polyfill$$polyfill; |
|||
|
|||
var lib$es6$promise$umd$$ES6Promise = { |
|||
'Promise': lib$es6$promise$promise$$default, |
|||
'polyfill': lib$es6$promise$polyfill$$default |
|||
}; |
|||
|
|||
/* global define:true module:true window: true */ |
|||
if (typeof define === 'function' && define['amd']) { |
|||
define(function() { return lib$es6$promise$umd$$ES6Promise; }); |
|||
} else if (typeof module !== 'undefined' && module['exports']) { |
|||
module['exports'] = lib$es6$promise$umd$$ES6Promise; |
|||
} else if (typeof this !== 'undefined') { |
|||
this['ES6Promise'] = lib$es6$promise$umd$$ES6Promise; |
|||
} |
|||
|
|||
lib$es6$promise$polyfill$$default(); |
|||
}).call(this); |
|||
|
|||
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