vendredi 30 janvier 2015

Discontigious Selection is not supported error in google chrome and chromium


I am working on a bookmark app where i have to store the user's selected keywords or words or content. I am using the createRange() and addRange() javascript methods to create the range and then find out the selected elements/contents by the user. The code i written for this is as follow.



<head>
<script type="text/javascript">
var storedSelections = [];

function StoreSelection () {
if (window.getSelection) {
var currSelection = window.getSelection ();
for (var i = 0; i < currSelection.rangeCount; i++) {
storedSelections.push (currSelection.getRangeAt (i));
}
currSelection.removeAllRanges ();
} else {
alert ("Your browser does not support this example!");
}
}

function ClearStoredSelections () {
storedSelections.splice (0, storedSelections.length);
}

function ShowStoredSelections () {
if (window.getSelection) {
var currSelection = window.getSelection ();
currSelection.removeAllRanges ();
for (var i = 0; i < storedSelections.length; i++) {
currSelection.addRange (storedSelections[i]);
}
} else {
alert ("Your browser does not support this example!");
}
}
</script>
</head>
<body>
Select some content on this page and use the buttons below.<br /> <br />
<button onclick="StoreSelection ();">Store the selection</button>
<button onclick="ClearStoredSelections ();">Clear stored selections
</button>
<button onclick="ShowStoredSelections ();">Show stored selections</button>

</body>


This code is working perfectly on Firefox. I am able to select multiple things one by one and able to show the selected content again but on chrome and chromium i am getting Discontiguous selection is not supported. error when i store more than one elements in range array and click on show stored selections button.


Help will be appreciated. And please suggest me if there is some other alternatives do accomplish this bookmarking task.





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