67 lines
2.0 KiB
JavaScript
67 lines
2.0 KiB
JavaScript
//
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// Atom to HTML - fetch a feed, inject it as dl/dt/dd
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//
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// Copyright (C) 2009-2010 Joshua Bell
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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function atomToHtml(uri, element) {
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var READYSTATE_UNINITIALIZED = 0;
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var READYSTATE_LOADING = 1;
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var READYSTATE_LOADED = 2;
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var READYSTATE_INTERACTIVE = 3;
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var READYSTATE_COMPLETE = 4;
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var xhr = new XMLHttpRequest();
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var async = true;
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xhr.open("GET", uri, async);
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xhr.onreadystatechange = function() {
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if (xhr.readyState === READYSTATE_COMPLETE) {
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if ((xhr.status === 200 || xhr.status === 0) && xhr.responseXML) {
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var doc = xhr.responseXML;
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var entries = doc.getElementsByTagName('entry');
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var html = [];
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html.push('<dl>');
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for (var i = 0; i < entries.length; i += 1) {
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var entry = entries[i];
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try {
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var entryHTML = [];
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entryHTML.push('<dt>', entry.getElementsByTagName('title')[0].childNodes[0].nodeValue);
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entryHTML.push('<dd>', entry.getElementsByTagName('content')[0].childNodes[0].nodeValue);
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html.push(entryHTML.join(''));
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} catch (e) {
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if (console && console.log) { console.log("Error:", e); }
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}
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}
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html.push('</dl>');
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element.innerHTML = html.join('');
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} else {
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element.innerHTML = '<em>Unable to load feed</em>';
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}
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}
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};
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try {
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xhr.send(null);
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} catch (e) {
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element.innerHTML = '<em>Unable to load feed</em>';
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}
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}
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