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Updated waitUntilExists plugin
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;(function ($, window) { | |
var intervals = {}; | |
var removeListener = function(selector) { | |
if (intervals[selector]) { | |
window.clearInterval(intervals[selector]); | |
intervals[selector] = null; | |
} | |
}; | |
var found = 'waitUntilExists.found'; | |
/** | |
* @function | |
* @property {object} jQuery plugin which runs handler function once specified | |
* element is inserted into the DOM | |
* @param {function|string} handler | |
* A function to execute at the time when the element is inserted or | |
* string "remove" to remove the listener from the given selector | |
* @param {bool} shouldRunHandlerOnce | |
* Optional: if true, handler is unbound after its first invocation | |
* @example jQuery(selector).waitUntilExists(function); | |
*/ | |
$.fn.waitUntilExists = function(handler, shouldRunHandlerOnce, isChild) { | |
var selector = this.selector; | |
var $this = $(selector); | |
var $elements = $this.not(function() { return $(this).data(found); }); | |
if (handler === 'remove') { | |
// Hijack and remove interval immediately if the code requests | |
removeListener(selector); | |
} | |
else { | |
// Run the handler on all found elements and mark as found | |
$elements.each(handler).data(found, true); | |
if (shouldRunHandlerOnce && $this.length) { | |
// Element was found, implying the handler already ran for all | |
// matched elements | |
removeListener(selector); | |
} | |
else if (!isChild) { | |
// If this is a recurring search or if the target has not yet been | |
// found, create an interval to continue searching for the target | |
intervals[selector] = window.setInterval(function () { | |
$this.waitUntilExists(handler, shouldRunHandlerOnce, true); | |
}, 500); | |
} | |
} | |
return $this; | |
}; | |
}(jQuery, window)); |
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(function(e,f){var b={},g=function(a){b[a]&&(f.clearInterval(b[a]),b[a]=null)};e.fn.waitUntilExists=function(a,h,j){var c=this.selector,d=e(c),k=d.not(function(){return e(this).data("waitUntilExists.found")});"remove"===a?g(c):(k.each(a).data("waitUntilExists.found",!0),h&&d.length?g(c):j||(b[c]=f.setInterval(function(){d.waitUntilExists(a,h,!0)},500)));return d}})(jQuery,window); |
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