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Scenario : There is an input element in a HTML page where u can enter any numbers/text. If 2 consecutive characters are entered, then I am calling showModalDialog() method to open a pop up window which is having another input element. Whatever the characters entered in parent page will be copied to that search box.
Issue : If user types a text fast(without break) for searching with more than 2 characters (for ex. apple) then 3rd and/or 4th character/s typed are missed out(not traced by keyUp event). I mean only aple word is copied into search box present in pop up. So user need to retype the text.
Solution needed : Whenever user types any text, pop up needs to be triggered and all the characters need to be copied into search box in pop up
Environment : Reproducing only in IE9
Languages : HTML, Javascript
Note : What I have analysed is, since there is a delay in triggering pop up window, characters typed after 2 charaters are missed out. I don't know why this is occuring only in IE9 also I can not upgrade to IE10 for resolving issue.
Still I am stucked up with this issue. Is there any alternative solution for this? Any other way to get all the functionality of modal dialog with some other element/s?
Here is the sample code snippet of parent HTML:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Test Page</title>
<script type="text/javascript">
var checkSeq = new RegExp("[a-zA-Z]{2}", "i");
function handleShowModalPopUp(fieldValue){
if(checkSeq.test(fieldValue)){
window.showModalDialog("popUpPage.html", document.getElementById('searchElem').value, "");
}
}
</script>
</head>
<body>
Enter Search Term :
<input type="text" id="searchElem" value="" onkeyup="handleShowModalPopUp(this.value)">
</body>
</html>
Here is the pop up window HTML (popUpPage.html) :
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Search Dialog</title>
<script type="text/javascript">
function handleOnload(){
var searchVal = window.dialogArguments;
if(null!= searchVal){
document.getElementById('searchElem').value = searchVal;
}
}
</script>
</head>
<body onload="handleOnload()">
<input type="text" id="searchElem">
<input type="button" value="Search">
</body>
</html>
353
What you actually want to do is delay the opening of the popup until your user has stopped typing. Detecting if a user has stopped typing is simply a matter of detecting if nothing has happened in the time a keystroke could have happened. So instead of opening the modal window, open it only after a delay on the condition that no keystroke happened in the meantime.
Here is some code I cooked up that should help you. I've set the delay 500ms.
<html>
<head>
<script>
function DelayedPopup(delayThreshold) {
this.delay = delayThreshold;
this.lastSearchValue = undefined;
this.popEvent = 0;
}
DelayedPopup.prototype = {
needsDelay: function() {
return this.searchValue() != this.lastSearchValue;
},
searchValue: function() {
return document.getElementById('searchElem').value;
},
openPopup: function() {
window.showModalDialog("popUpPage.html", "");
},
popupOrDelay: function() {
if (this.needsDelay()) {
this.popup();
}
else {
this.openPopup();
this.popEvent = 0;
}
},
popup: function() {
this.lastSearchValue = this.searchValue();
if (this.popEvent) {
clearInterval(this.popEvent);
}
var self = this;
this.popEvent = setTimeout(function() { self.popupOrDelay(); }, this.delay);
}
};
var delayedPopup = new DelayedPopup(500);
</script>
</head>
<body>
<input type="text" id="searchElem" onkeyup="if (this.value.length > 2) delayedPopup.popup()">
</body>
</html>
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