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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>Checkbox Observer</title> | |
| <script type="text/javascript" charset="utf-8" src="http://code.jquery.com/jquery-1.5.1.js"></script> | |
| <script type="text/javascript" src="test.js"></script> | |
| </head> | |
| <body> | |
| <input type="checkbox" id="checkbox" /> | |
| <input type="button" id="getCurrentStatus" value="Get current checkbox status" /> | |
| <input type="button" id="runFromCommandLine" value="Run 'checkboxObserver.toggle()' from command line" /> | |
| </body> | |
| </html> |
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| var CheckboxObserver = function(item) { | |
| var customTriggerParam = "inner" | |
| //var itemChecked = item.is(":checked"); | |
| var observerData = {}; | |
| var eventType; | |
| var eventCallback; | |
| /** | |
| * Toggle checkbox | |
| */ | |
| this.getObserverData = function() { | |
| return observerData; | |
| }; | |
| this.setObserverData = function(data) { | |
| observerData = data; | |
| } | |
| this.handler = function(e, triggerParam) { | |
| e = e || {}; | |
| console.log(triggerParam); | |
| //if its called directyl from object | |
| if (!e.type && triggerParam != customTriggerParam) { | |
| //TODO: 'click' should be read from event object | |
| item.trigger(eventType, [customTriggerParam]); | |
| } | |
| //if its triggered | |
| else if (e.type) { | |
| eventCallback(); | |
| } | |
| }; | |
| this.bind = function(eType, callback) { | |
| eventType = eType; | |
| eventCallback = callback; | |
| item.bind(eventType, this.handler); | |
| } | |
| }; | |
| var checkboxObserver; | |
| $(function() { | |
| var $checkboxItem = $("#checkbox"); | |
| checkboxObserver = new CheckboxObserver($checkboxItem); | |
| checkboxObserver.setObserverData({ isChecked: false }); | |
| checkboxObserver.bind('click', function() { | |
| var isChecked = checkboxObserver.getObserverData().isChecked; | |
| checkboxObserver.setObserverData({ isChecked: !isChecked }); | |
| }); | |
| $("#getCurrentStatus").click(function() { | |
| alert(checkboxObserver.getObserverData().isChecked); | |
| }); | |
| $("#runFromCommandLine").click(function() { | |
| checkboxObserver.toggle(); | |
| }); | |
| }); |
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