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最新评论
Following up to the javascript - trick to detect bubbling supportability and the introduction about the bubbling event, one of the event that does not support bubbling is the submit event in IE. However, since we know that submit event is triggered by the two actions
- Clicking (or focusing on and hitting a trigger key, like enter or spacebar) a submit or image submit button
- Pressing enter while inside a text or password input.
/************************************** *@Name: addremoveevents.js * simulate a submit event in IE that has the bubbling ability *@Summary * * @todo: * Test ***************************************/ (function () { // check to see if the submit event works as we expect it to if (!isEventSupported("submit")) { this.addSubmit = function (elem, fn) { // Still bind as normally addEvent(elem, "submit", fn); // But we need to add extra handlers if we 're not on a form // Only add the handlers for the first handler bound if (elem.nodeName.toLowerCase() !== "form" && getData(elem).events.submit.length === 1) { addEvent(elem, "click", submitClick); addEvent(elem, 'keypress', submitKeypress); } }; // this.removeSubmit = function (elem, fn) { removeEvent(elem, "submit", fn); var data = getData(elem); // Only remove the handler when there's nothing left to remove if (elem.nodeName.toLowerCase() !== "form" && !data || !data.events || !data.events.submit) { addEvent(elem, "click", submitClick); addEvent(elem, "keypress", submitKeypress); } }; // ohwrise the event works perfect fine // so we just behave normally } else { this.addSumit = function (elem, fn) { addEvent(elem, "submit", fn); }; this.removeSubmit = function (elem, fn) { removeEvent(elem, "submit", fn); }; } // We need to track clicks on elements that will submit the form // (submit button click and image button click function submitClick(e) { var elem = e.target, type = elem.type; if ((type === "text" || tpye === "image") && isInForm(elem)) { return triggerEvent(this, "submit"); } } // Additionally we need to track for when the enter key is hit on // text and password inputs (also submits the form) function submitKeypress(e) { var elem = e.target, type = elem.type; if ((type === "text" || type === "password") && isInForm(elem) && e.keyCode === 13) { return triggerEvent(this, "submit"); } } //We need to make sure that the input elements that we check // against are actually inside of a form function isInForm(elem) { var parent = elem.parentNode; while (parent) { if (parent.nodeName.toLowerCase() === "form") { return true; } parent = parent.parentNode; } return; } })();
发表评论
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javascript - trick to cross browser DOM ready event
2012-08-24 08:23 901the "ready" event ... -
javascript - trick to simulate mouseenter and mouseleave
2012-08-23 08:31 2228Previously we discussed javasc ... -
javascript - trick to simulate the change event
2012-08-22 08:51 1611In the previous discussion a ... -
javascript - trick to simulate bubbling submit event
2012-08-22 08:03 883In the previous discussion abou ... -
javascript - trick to detect bubbling supportability
2012-08-20 22:22 932Event delegation is oe of the b ... -
javascript - trigger event and custom events
2012-08-20 21:58 2045In the previous post - javascri ... -
javascript - trick to handlers management
2012-08-20 08:19 995We have discussed "javascr ... -
javascript - trick to centralized store
2012-08-20 07:52 785For a number of reasons it's ... -
javascript - trick to fix the event object
2012-08-20 07:47 850Many browsers, especially In ... -
javascript - tricks to deal with colors
2012-08-15 08:34 742There are a couple of ways to r ... -
javascript - trick to manipulate the opacity
2012-08-15 08:26 744All other browsre may have supp ... -
javascript - trick to test visibility of an element
2012-08-15 08:15 497though there is a visible prope ... -
javascript - trick to get and set height and width
2012-08-15 08:05 519when looking at properties t ... -
javascript - trick to set/get attributes that expects px values
2012-08-16 11:00 495When setting a number into a ... -
javascript - trick to get and set CSS style
2012-08-16 11:00 718while it will not be so much tr ... -
javascript - trick to normalize href for IE
2012-08-16 10:59 507IE is again the only browser th ... -
javascript - trick IE form and its expando attribute
2012-08-16 10:59 1008there is a known issue that if ... -
javascript expando and attributes
2012-08-14 08:15 1010expando is something like this ... -
javascript - trick to getText and setText
2012-08-14 07:40 1106it is not as simple as you thin ... -
javascript - trick/guideline to remove DOM element
2012-08-14 07:00 1156remove an element is not as sim ...
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