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jquery-outside-events
稿件来源: 阳光企业网站管理系统 撰稿作者: 太阳光 发表日期: 2015-06-25 阅读次数: 93 查看权限: 游客查看
这个插件挺有意思的。
jquery绑定事件一般都是针对本身,这插件却是针对外部事件相应。原理也很简单,利用事件冒泡判断是否是在outside元素而触发事件。
官网介绍:http://benalman.com/projects/jquery-outside-events-plugin/
/*! * jQuery outside events - v1.1 - 3/16/2010 * http://benalman.com/projects/jquery-outside-events-plugin/ * * Copyright (c) 2010 "Cowboy" Ben Alman * Dual licensed under the MIT and GPL licenses. * http://benalman.com/about/license/ */ // Script: jQuery outside events // // *Version: 1.1, Last updated: 3/16/2010* // // Project Home - http://benalman.com/projects/jquery-outside-events-plugin/ // GitHub - http://github.com/cowboy/jquery-outside-events/ // Source - http://github.com/cowboy/jquery-outside-events/raw/master/jquery.ba-outside-events.js // (Minified) - http://github.com/cowboy/jquery-outside-events/raw/master/jquery.ba-outside-events.min.js (0.9kb) // // About: License // // Copyright (c) 2010 "Cowboy" Ben Alman, // Dual licensed under the MIT and GPL licenses. // http://benalman.com/about/license/ // // About: Examples // // These working examples, complete with fully commented code, illustrate a few // ways in which this plugin can be used. // // clickoutside - http://benalman.com/code/projects/jquery-outside-events/examples/clickoutside/ // dblclickoutside - http://benalman.com/code/projects/jquery-outside-events/examples/dblclickoutside/ // mouseoveroutside - http://benalman.com/code/projects/jquery-outside-events/examples/mouseoveroutside/ // focusoutside - http://benalman.com/code/projects/jquery-outside-events/examples/focusoutside/ // // About: Support and Testing // // Information about what version or versions of jQuery this plugin has been // tested with, what browsers it has been tested in, and where the unit tests // reside (so you can test it yourself). // // jQuery Versions - 1.4.2 // Browsers Tested - Internet Explorer 6-8, Firefox 2-3.6, Safari 3-4, Chrome, Opera 9.6-10.1. // Unit Tests - http://benalman.com/code/projects/jquery-outside-events/unit/ // // About: Release History // // 1.1 - (3/16/2010) Made "clickoutside" plugin more general, resulting in a // whole new plugin with more than a dozen default "outside" events and // a method that can be used to add new ones. // 1.0 - (2/27/2010) Initial release // // Topic: Default "outside" events // // Note that each "outside" event is powered by an "originating" event. Only // when the originating event is triggered on an element outside the element // to which that outside event is bound will the bound event be triggered. // // Because each outside event is powered by a separate originating event, // stopping propagation of that originating event will prevent its related // outside event from triggering. // // OUTSIDE EVENT - ORIGINATING EVENT // clickoutside - click // dblclickoutside - dblclick // focusoutside - focusin // bluroutside - focusout // mousemoveoutside - mousemove // mousedownoutside - mousedown // mouseupoutside - mouseup // mouseoveroutside - mouseover // mouseoutoutside - mouseout // keydownoutside - keydown // keypressoutside - keypress // keyupoutside - keyup // changeoutside - change // selectoutside - select // submitoutside - submit (function($,doc,outside){ '$:nomunge'; // Used by YUI compressor. $.map( // All these events will get an "outside" event counterpart by default. 'click dblclick mousemove mousedown mouseup mouseover mouseout change select submit keydown keypress keyup'.split(' '), function( event_name ) { jq_addOutsideEvent( event_name ); } ); // The focus and blur events are really focusin and focusout when it comes // to delegation, so they are a special case. jq_addOutsideEvent( 'focusin', 'focus' + outside ); jq_addOutsideEvent( 'focusout', 'blur' + outside ); // Method: jQuery.addOutsideEvent // // Register a new "outside" event to be with this method. Adding an outside // event that already exists will probably blow things up, so check the // <Default "outside" events> list before trying to add a new one. // // Usage: // // > jQuery.addOutsideEvent( event_name [, outside_event_name ] ); // // Arguments: // // event_name - (String) The name of the originating event that the new // "outside" event will be powered by. This event can be a native or // custom event, as long as it bubbles up the DOM tree. // outside_event_name - (String) An optional name for the new "outside" // event. If omitted, the outside event will be named whatever the // value of `event_name` is plus the "outside" suffix. // // Returns: // // Nothing. $.addOutsideEvent = jq_addOutsideEvent; function jq_addOutsideEvent( event_name, outside_event_name ) { // The "outside" event name. outside_event_name = outside_event_name || event_name + outside; // A jQuery object containing all elements to which the "outside" event is // bound. var elems = $(), // The "originating" event, namespaced for easy unbinding. event_namespaced = event_name + '.' + outside_event_name + '-special-event'; // Event: outside events // // An "outside" event is triggered on an element when its corresponding // "originating" event is triggered on an element outside the element in // question. See the <Default "outside" events> list for more information. // // Usage: // // > jQuery('selector').bind( 'clickoutside', function(event) { // > var clicked_elem = $(event.target); // > ... // > }); // // > jQuery('selector').bind( 'dblclickoutside', function(event) { // > var double_clicked_elem = $(event.target); // > ... // > }); // // > jQuery('selector').bind( 'mouseoveroutside', function(event) { // > var moused_over_elem = $(event.target); // > ... // > }); // // > jQuery('selector').bind( 'focusoutside', function(event) { // > var focused_elem = $(event.target); // > ... // > }); // // You get the idea, right? $.event.special[ outside_event_name ] = { // Called only when the first "outside" event callback is bound per // element. setup: function(){ // Add this element to the list of elements to which this "outside" // event is bound. elems = elems.add( this ); // If this is the first element getting the event bound, bind a handler // to document to catch all corresponding "originating" events. if ( elems.length === 1 ) { $(doc).bind( event_namespaced, handle_event ); } }, // Called only when the last "outside" event callback is unbound per // element. teardown: function(){ // Remove this element from the list of elements to which this // "outside" event is bound. elems = elems.not( this ); // If this is the last element removed, remove the "originating" event // handler on document that powers this "outside" event. if ( elems.length === 0 ) { $(doc).unbind( event_namespaced ); } }, // Called every time a "outside" event callback is bound to an element. add: function( handleObj ) { var old_handler = handleObj.handler; // This function is executed every time the event is triggered. This is // used to override the default event.target reference with one that is // more useful. handleObj.handler = function( event, elem ) { // Set the event object's .target property to the element that the // user interacted with, not the element that the "outside" event was // was triggered on. event.target = elem; // Execute the actual bound handler. old_handler.apply( this, arguments ); }; } }; // When the "originating" event is triggered.. function handle_event( event ) { // Iterate over all elements to which this "outside" event is bound. $(elems).each(function(){ var elem = $(this); // If this element isn't the element on which the event was triggered, // and this element doesn't contain said element, then said element is // considered to be outside, and the "outside" event will be triggered! if ( this !== event.target && !elem.has(event.target).length ) { // Use triggerHandler instead of trigger so that the "outside" event // doesn't bubble. Pass in the "originating" event's .target so that // the "outside" event.target can be overridden with something more // meaningful. elem.triggerHandler( outside_event_name, [ event.target ] ); } }); }; }; })(jQuery,document,"outside");
感兴趣可以先查看它的例子哟。
关键词: jquery,outside,events 编辑时间: 2015-06-25 10:05:32
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