我正在开发一个jQuery插件,当我点击暂停链接时,我需要在插件中调用一个函数。我的代码就像这样
$("#pauseAnimation").click(function () { $.fn.cjImageVideoPreviewer().pauseAnimation(); })
和要调用的函数是这个
(function ($) {
$.fn.cjImageVideoPreviewer = function (options) {
var settings = {
// user editable settings
images: [],
delay: 1000,
autoPlay: false,
showProgress: false
};
var sys = {
// function parameters
version: '1.0.2',
elem: null,
idx: 1,
timer: null,
loaded: 0,
mouseX: null,
mouseY: null,
state: false
};
/*
handle transitions
***************************************/
function clearTimer() {
if (sys.timer !== null) {
window.clearTimeout(sys.timer);
sys.timer = null;
}
}
// reset everything
function stopAnimation() {
if (sys.state) {
clearTimer();
sys.idx = 0;
sys.state = false;
// show the first image
$(sys.elem).find("div.cjImageVideoPreviewer img:first").css({
"display": "block"
});
// hide all the other images
$(sys.elem).find("div.cjImageVideoPreviewer img:not(:first)").css({
"display": "none"
});
}
}
// pause
function pauseAnimation() {
if (sys.state) {
clearTimer();
sys.idx = 0;
sys.state = false;
}
}
当我点击链接时出现错误
Microsoft JScript运行时错误:对象不支持此属性或方法 任何帮助都会很明显..
答案 0 :(得分:1)
在JQuery documentation中,推荐的创建插件的方法是:
(function( $ ){
var methods = {
init : function( options ) {
return this.each(function(){
$(window).bind('resize.tooltip', methods.reposition);
});
},
destroy : function( ) {
return this.each(function(){
$(window).unbind('.tooltip');
})
},
reposition : function( ) {
// ...
},
show : function( ) {
// ...
},
hide : function( ) {
// ...
},
update : function( content ) {
// ...
}
};
$.fn.tooltip = function( method ) {
if ( methods[method] ) {
return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
} else if ( typeof method === 'object' || ! method ) {
return methods.init.apply( this, arguments );
} else {
$.error( 'Method ' + method + ' does not exist on jQuery.tooltip' );
}
};
})( jQuery );
如果想要使用这种创建自定义插件的方式,您的插件应该看起来与此类似:
(function( $ ){
var sys, settings;
var methods = {
init : function( options ) {
//do stuf with options settings
},
clearTimer: function () {
if (sys.timer !== null) {
window.clearTimeout(sys.timer);
sys.timer = null;
}
},
stopAnimation: function () {
if (sys.state) {
clearTimer();
sys.idx = 0;
sys.state = false;
// show the first image
$(sys.elem).find("div.cjImageVideoPreviewer img:first").css({
"display": "block"
});
// hide all the other images
$(sys.elem).find("div.cjImageVideoPreviewer img:not(:first)").css({
"display": "none"
});
}
},
pauseAnimation: function () {
if (sys.state) {
clearTimer();
sys.idx = 0;
sys.state = false;
}
}
};
$.fn.cjImageVideoPreviewer = function (method) {
settings = {
// user editable settings
images: [],
delay: 1000,
autoPlay: false,
showProgress: false
};
sys = {
// function parameters
version: '1.0.2',
elem: null,
idx: 1,
timer: null,
loaded: 0,
mouseX: null,
mouseY: null,
state: false
};
if ( methods[method] ) {
return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
} else if ( typeof method === 'object' || ! method ) {
return methods.init.apply( this, arguments );
} else {
$.error( 'Method ' + method + ' does not exist on jQuery.cjImageVideoPreviewer' );
}
}
})( jQuery );
然后你可以像这样使用它:
//Init your plugin with some options
$('#pauseAnimation').cjImageVideoPreviewer({option1: 'value1', option2: 'value2'});
// then call a method like this:
$('#pauseAnimation').cjImageVideoPreviewer('pauseAnimation');
希望这能说明如何开发JQuery插件。
答案 1 :(得分:-1)
你可能更喜欢将嵌套函数分配给这样的变量:
(function($) {
$.fn.foo = function(options) {
var do_stuff = function() {
alert('do_stuff!')
var do_other_stuff = function() {
alert("do_other_stuff");
};
return {
do_other_stuff: do_other_stuff
};
};
return {
do_stuff: do_stuff
}
};
})(jQuery);
$.fn.foo().do_stuff();
$.fn.foo().do_stuff().do_other_stuff();
享受!
编辑:
或者你可以这样做:
$.fn.foo = {
do_stuff : function() {
alert("do_stuff!");
}
};
$.fn.foo.do_stuff();