Created
December 5, 2014 13:42
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Syncs a textbox over different windows without a server using localStorage
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| <html lang="en"> | |
| <head> | |
| <title>Syncbox</title> | |
| </head> | |
| <body> | |
| <textarea id="sync" style="width:100%; height:100%; overflow:auto; border:0;"></textarea> | |
| <script> | |
| if(window.localStorage){ | |
| var sync = document.getElementById("sync"); | |
| var key = 'sync'; | |
| addEventListener('storage', handleLocalStorageEvent, false); | |
| function handleLocalStorageEvent(e){ | |
| if(e.key == key && !document.hasFocus()){ | |
| sync.innerText = e.newValue; | |
| } | |
| } | |
| sync.addEventListener("keyup", function() { | |
| localStorage.setItem(key, sync.innerText); | |
| }); | |
| // Initial value from storage | |
| sync.innerText = localStorage.getItem(key); | |
| sync.focus(); | |
| sync.setSelectionRange(sync.value.length,sync.value.length); | |
| } | |
| else{ | |
| alert("localStorage is deactivated!"); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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