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March 25, 2014 01:07
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Binding Events To Non-DOM Objects With jQuery
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| <script type="text/javascript"> | |
| ( | |
| function(){ | |
| var strMessage = "Hello"; | |
| alert( strMessage ); | |
| } | |
| )(); | |
| </script> |
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| <script type="text/javascript" src="jquery-1.3.2.js"></script> | |
| <script type="text/javascript"> | |
| // Our plugin will be defined within an immediately | |
| // executed method. | |
| ( | |
| function( $ ){ | |
| // Default to the current location. | |
| var strLocation = window.location.href; | |
| var strHash = window.location.hash; | |
| var strPrevLocation = ""; | |
| var strPrevHash = ""; | |
| // This is how often we will be checkint for | |
| // changes on the location. | |
| var intIntervalTime = 100; | |
| // This method removes the pound from the hash. | |
| var fnCleanHash = function( strHash ){ | |
| return( | |
| strHash.substring( 1, strHash.length ) | |
| ); | |
| } | |
| // This will be the method that we use to check | |
| // changes in the window location. | |
| var fnCheckLocation = function(){ | |
| // Check to see if the location has changed. | |
| if (strLocation != window.location.href){ | |
| // Store the new and previous locations. | |
| strPrevLocation = strLocation; | |
| strPrevHash = strHash; | |
| strLocation = window.location.href; | |
| strHash = window.location.hash; | |
| // The location has changed. Trigger a | |
| // change event on the location object, | |
| // passing in the current and previous | |
| // location values. | |
| $( window.location ).trigger( | |
| "change", | |
| { | |
| currentHref: strLocation, | |
| currentHash: fnCleanHash( strHash ), | |
| previousHref: strPrevLocation, | |
| previousHash: fnCleanHash( strPrevHash ) | |
| } | |
| ); | |
| } | |
| } | |
| // Set an interval to check the location changes. | |
| setInterval( fnCheckLocation, intIntervalTime ); | |
| } | |
| )( jQuery ); | |
| </script> |
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| $( window.location ).trigger( | |
| "change", | |
| { | |
| currentHref: strLocation, | |
| currentHash: fnCleanHash( strHash ), | |
| previousHref: strPrevLocation, | |
| previousHash: fnCleanHash( strPrevHash ) | |
| } | |
| ); |
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| <script type="text/javascript"> | |
| // Bind a change handler to the window location. | |
| $( window.location ).bind( | |
| "change", | |
| function( objEvent, objData ){ | |
| var jLog = $( "#log" ); | |
| // Add the URL change. | |
| jLog.append( | |
| "<li>" + | |
| "Hash changed from " + | |
| "<strong>" + objData.previousHash + "</strong>" + | |
| " to " + | |
| "<strong>" + objData.currentHash + "</strong>" + | |
| "</li>" | |
| ); | |
| } | |
| ); | |
| </script> |
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| <body> | |
| <h1> | |
| jQuery Top-Level Closure Example | |
| </h1> | |
| <p> | |
| <a href="#linkA">Link A</a> | | |
| <a href="#linkB">Link B</a> | | |
| <a href="#linkC">Link C</a> | |
| </p> | |
| <p> | |
| The following is a change log of URL updates: | |
| </p> | |
| <ol id="log"> | |
| <!--- Items to be injected. ---> | |
| </ol> | |
| </body> |
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