Created
December 5, 2012 22:25
-
-
Save shigeki/4220068 to your computer and use it in GitHub Desktop.
Object.observer() デモ３
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <title>Object.observer() demo3</title> | |
| <style> | |
| table, td, th { | |
| border: 2px #000000 solid; | |
| } | |
| </style> | |
| <script src="observer3.js"></script> | |
| </head> | |
| <body> | |
| <div id="event"><div>Event Code</div> | |
| <pre> | |
| obj3.seen = new Date(2013, 0, 1, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 2, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 3, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 4, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 5, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 6, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 7, 0, 0, 0); // 時間更新イベント | |
| </pre> | |
| <div id="seen"></div> | |
| <div id="results"></div> | |
| </body> | |
| </html> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| window.addEventListener('DOMContentLoaded',function() { | |
| if (!Object.observe) { | |
| alert('Object.observe not supported in your browser. Please use Chrome Dev Channel and enable Experimental JavaScript'); | |
| return; | |
| } | |
| var obj3 = {_time: new Date(0)}; | |
| var notifier = Object.getNotifier(obj3); | |
| Object.defineProperties(obj3, { | |
| _time: { | |
| enumerable: false, | |
| configrable: false | |
| }, | |
| seen: { | |
| set: function(val) { | |
| var notifier = Object.getNotifier(this); | |
| notifier.notify({ | |
| type: 'time_updated', // 時間更新イベントの定義 | |
| name: 'seen', | |
| oldValue: this._time | |
| }); | |
| this._time = val; | |
| }, | |
| get: function() { | |
| return this._time; | |
| } | |
| } | |
| }); | |
| Object.observe(obj3, output); | |
| obj3.seen = new Date(2013, 0, 1, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 2, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 3, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 4, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 5, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 6, 0, 0, 0); // 時間更新イベント | |
| obj3.seen = new Date(2013, 0, 7, 0, 0, 0); // 時間更新イベント | |
| function output (changes) { | |
| var results = document.getElementById('results'); | |
| var table = document.createElement('table'); | |
| results.appendChild(table); | |
| var caption = document.createElement('caption'); | |
| caption.innerText = 'Observed Events List'; | |
| table.appendChild(caption); | |
| var thead = document.createElement('thead'); | |
| thead.innerHTML = '<tr><th>index</th><th>type</th><th>name</th><th>oldValue</th><th>currentValue</th></tr>'; | |
| table.appendChild(thead); | |
| changes.forEach(function(change, i) { | |
| var tr = document.createElement('tr'); | |
| tr.innerHTML = '<td>' + i + '</td><td>' + change.type + '</td><td>' + change.name + '</td><td>' + change.oldValue + '</td><td>' + change.object[change.name] + '</td>'; | |
| table.appendChild(tr); | |
| }); | |
| } | |
| }); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment