我是一名有 css 经验的网页设计师，但我不是 JS 开发人员。
我使用 jqtransform 来设置搜索表单的样式， 问题是它会从选择器和搜索按钮中删除所有事件。
这是jqtransform之前的代码
<input id="go-search" type="button" name="btn_search" value="search" onclick="searchLocations()" />
在应用脚本后，按钮不做任何事情 我打开了页面源代码，这里是这样的：
<button class=" jqTransformButton" type="button" name="btn_search" id="go-search"><span><span>search</span></span></button>
请帮帮我！
【问题讨论】：
标签： javascript events forms
我认为最好在新帖子中提出新问题……
$(function() { $("form.jqtransform").jqTransform(); $("#city").click(populateDestrict); });
当通过 JavaScript 为事件分配函数时，您只分配函数引用。在函数标识符后面加上括号将执行函数。
function myFunction(x)
{
alert(x);
return 1;
}
// correct, the onload event will trigger the function
window.onload = myFunction;
// alerts "[object Event]"
// wrong
window.onload = myFunction("hello");
// this assigns "1" to the onload property*
// * - IE may execute this, but no standard compliant browser
【讨论】：
据我们所知，只有按钮受到影响。该脚本将您原来的按钮替换为新按钮，因此除了 id、name、type 和 class 属性之外的所有内容都将被删除。当 jqtransform 完成它的工作时，你必须重新分配函数。
// after jqtransform
// probably $("#go-search").click(searchLocations); in jQuery, but I’m not a jQuery user … thus in plain JavaScript:
var bt = document.getElementById("go-search");
if (window.addEventListener) {
bt.addEventListener("click", searchLocations, false);
}
else {
bt.attachEvent("onclick", searchLocations);
}
我会冒险猜测它的使用方式
$(function() {
//find all form with class jqtransform and apply the plugin
$("form.jqtransform").jqTransform();
// fix your button
$("#go-search").click(searchLocations);
});
【讨论】：
可能会迟到，但是...最近遇到了同样的问题。解决方案是使用这个版本的 jqTransform 脚本：
注意： 1) 打开您的 jqTransform 文件，2)删除所有内容，3)复制 4) PASTE 和 5) SAVE 下方的代码。
/*
*
* jqTransform
* by mathieu vilaplana mvilaplana@dfc-e.com
* Designer ghyslain armand garmand@dfc-e.com
*
*
* Version 1.0 25.09.08
* Version 1.1 06.08.09
* Add event click on Checkbox and Radio
* Auto calculate the size of a select element
* Can now, disabled the elements
* Correct bug in ff if click on select (overflow=hidden)
* No need any more preloading !!
*
******************************************** */
(function($){
var defaultOptions = {preloadImg:true};
var jqTransformImgPreloaded = false;
var jqTransformPreloadHoverFocusImg = function(strImgUrl) {
//guillemets to remove for ie
strImgUrl = strImgUrl.replace(/^url\((.*)\)/,'$1').replace(/^\"(.*)\"$/,'$1');
var imgHover = new Image();
imgHover.src = strImgUrl.replace(/\.([a-zA-Z]*)$/,'-hover.$1');
var imgFocus = new Image();
imgFocus.src = strImgUrl.replace(/\.([a-zA-Z]*)$/,'-focus.$1');
};
/***************************
Labels
***************************/
var jqTransformGetLabel = function(objfield){
var selfForm = $(objfield.get(0).form);
var oLabel = objfield.next();
if(!oLabel.is('label')) {
oLabel = objfield.prev();
if(oLabel.is('label')){
var inputname = objfield.attr('id');
if(inputname){
oLabel = selfForm.find('label[for="'+inputname+'"]');
}
}
}
if(oLabel.is('label')){return oLabel.css('cursor','pointer');}
return false;
};
/* Hide all open selects */
var jqTransformHideSelect = function(oTarget){
var ulVisible = $('.jqTransformSelectWrapper ul:visible');
ulVisible.each(function(){
var oSelect = $(this).parents(".jqTransformSelectWrapper:first").find("select").get(0);
//do not hide if click on the label object associated to the select
if( !(oTarget && oSelect.oLabel && oSelect.oLabel.get(0) == oTarget.get(0)) ){$(this).hide();}
});
};
/* Check for an external click */
var jqTransformCheckExternalClick = function(event) {
if ($(event.target).parents('.jqTransformSelectWrapper').length === 0) { jqTransformHideSelect($(event.target)); }
};
/* Apply document listener */
var jqTransformAddDocumentListener = function (){
$(document).mousedown(jqTransformCheckExternalClick);
};
/* Add a new handler for the reset action */
var jqTransformReset = function(f){
var sel;
$('.jqTransformSelectWrapper select', f).each(function(){sel = (this.selectedIndex<0) ? 0 : this.selectedIndex; $('ul', $(this).parent()).each(function(){$('a:eq('+ sel +')', this).click();});});
$('a.jqTransformCheckbox, a.jqTransformRadio', f).removeClass('jqTransformChecked');
$('input:checkbox, input:radio', f).each(function(){if(this.checked){$('a', $(this).parent()).addClass('jqTransformChecked');}});
};
/***************************
Buttons
***************************/
$.fn.jqTransInputButton = function(){
return this.each(function(){
var newBtn = $('<button id="'+ this.id +'" name="'+ this.name +'" type="'+ this.type +'" class="'+ this.className +' jqTransformButton"><span><span>'+ $(this).attr('value') +'</span></span>')
.hover(function(){newBtn.addClass('jqTransformButton_hover');},function(){newBtn.removeClass('jqTransformButton_hover')})
.mousedown(function(){newBtn.addClass('jqTransformButton_click')})
.mouseup(function(){newBtn.removeClass('jqTransformButton_click')})
;
$(this).replaceWith(newBtn);
});
};
/***************************
Text Fields
***************************/
$.fn.jqTransInputText = function(){
return this.each(function(){
var $input = $(this);
if($input.hasClass('jqtranformdone') || !$input.is('input')) {return;}
$input.addClass('jqtranformdone');
var oLabel = jqTransformGetLabel($(this));
oLabel && oLabel.bind('click',function(){$input.focus();});
var inputSize=$input.width();
if($input.attr('size')){
inputSize = $input.attr('size')*10;
$input.css('width',inputSize);
}
$input.addClass("jqTransformInput").wrap('<div class="jqTransformInputWrapper"><div class="jqTransformInputInner"><div></div></div></div>');
var $wrapper = $input.parent().parent().parent();
$wrapper.css("width", inputSize+10);
$input
.focus(function(){$wrapper.addClass("jqTransformInputWrapper_focus");})
.blur(function(){$wrapper.removeClass("jqTransformInputWrapper_focus");})
.hover(function(){$wrapper.addClass("jqTransformInputWrapper_hover");},function(){$wrapper.removeClass("jqTransformInputWrapper_hover");})
;
/* If this is safari we need to add an extra class */
$.browser.safari && $wrapper.addClass('jqTransformSafari');
$.browser.safari && $input.css('width',$wrapper.width()+16);
this.wrapper = $wrapper;
});
};
/***************************
Check Boxes
***************************/
$.fn.jqTransCheckBox = function(){
return this.each(function(){
if($(this).hasClass('jqTransformHidden')) {return;}
var $input = $(this);
var inputSelf = this;
//set the click on the label
var oLabel=jqTransformGetLabel($input);
oLabel && oLabel.click(function(){aLink.trigger('click');});
var aLink = $('<a href="#" class="jqTransformCheckbox"></a>');
//wrap and add the link
$input.addClass('jqTransformHidden').wrap('<span class="jqTransformCheckboxWrapper"></span>').parent().prepend(aLink);
//on change, change the class of the link
$input.change(function(){
this.checked && aLink.addClass('jqTransformChecked') || aLink.removeClass('jqTransformChecked');
return true;
});
// Click Handler, trigger the click and change event on the input
aLink.click(function(){
//do nothing if the original input is disabled
if($input.attr('disabled')){return false;}
//trigger the envents on the input object
$input.trigger('click').trigger("change");
return false;
});
// set the default state
this.checked && aLink.addClass('jqTransformChecked');
});
};
/***************************
Radio Buttons
***************************/
$.fn.jqTransRadio = function(){
return this.each(function(){
if($(this).hasClass('jqTransformHidden')) {return;}
var $input = $(this);
var inputSelf = this;
oLabel = jqTransformGetLabel($input);
oLabel && oLabel.click(function(){aLink.trigger('click');});
var aLink = $('<a href="#" class="jqTransformRadio" rel="'+ this.name +'"></a>');
$input.addClass('jqTransformHidden').wrap('<span class="jqTransformRadioWrapper"></span>').parent().prepend(aLink);
$input.change(function(){
inputSelf.checked && aLink.addClass('jqTransformChecked') || aLink.removeClass('jqTransformChecked');
return true;
});
// Click Handler
aLink.click(function(){
if($input.attr('disabled')){return false;}
$input.trigger('click').trigger('change');
// uncheck all others of same name input radio elements
$('input[name="'+$input.attr('name')+'"]',inputSelf.form).not($input).each(function(){
$(this).attr('type')=='radio' && $(this).trigger('change');
});
return false;
});
// set the default state
inputSelf.checked && aLink.addClass('jqTransformChecked');
});
};
/***************************
TextArea
***************************/
$.fn.jqTransTextarea = function(){
return this.each(function(){
var textarea = $(this);
if(textarea.hasClass('jqtransformdone')) {return;}
textarea.addClass('jqtransformdone');
oLabel = jqTransformGetLabel(textarea);
oLabel && oLabel.click(function(){textarea.focus();});
var strTable = '<table cellspacing="0" cellpadding="0" border="0" class="jqTransformTextarea">';
strTable +='<tr><td id="jqTransformTextarea-tl"></td><td id="jqTransformTextarea-tm"></td><td id="jqTransformTextarea-tr"></td></tr>';
strTable +='<tr><td id="jqTransformTextarea-ml"> </td><td id="jqTransformTextarea-mm"><div></div></td><td id="jqTransformTextarea-mr"> </td></tr>';
strTable +='<tr><td id="jqTransformTextarea-bl"></td><td id="jqTransformTextarea-bm"></td><td id="jqTransformTextarea-br"></td></tr>';
strTable +='</table>';
var oTable = $(strTable)
.insertAfter(textarea)
.hover(function(){
!oTable.hasClass('jqTransformTextarea-focus') && oTable.addClass('jqTransformTextarea-hover');
},function(){
oTable.removeClass('jqTransformTextarea-hover');
})
;
textarea
.focus(function(){oTable.removeClass('jqTransformTextarea-hover').addClass('jqTransformTextarea-focus');})
.blur(function(){oTable.removeClass('jqTransformTextarea-focus');})
.appendTo($('#jqTransformTextarea-mm div',oTable))
;
this.oTable = oTable;
if($.browser.safari){
$('#jqTransformTextarea-mm',oTable)
.addClass('jqTransformSafariTextarea')
.find('div')
.css('height',textarea.height())
.css('width',textarea.width())
;
}
});
};
/***************************
Select
***************************/
$.fn.jqTransSelect = function(){
return this.each(function(index){
var $select = $(this);
if($select.hasClass('jqTransformHidden')) {return;}
if($select.attr('multiple')) {return;}
var oLabel = jqTransformGetLabel($select);
/* First thing we do is Wrap it */
var $wrapper = $select
.addClass('jqTransformHidden')
.wrap('<div class="jqTransformSelectWrapper"></div>')
.parent()
.css({zIndex: 10-index})
;
/* Now add the html for the select */
$wrapper.prepend('<div><span></span><a href="#" class="jqTransformSelectOpen"></a></div><ul></ul>');
var $ul = $('ul', $wrapper).css('width',$select.width()).hide();
/* Now we add the options */
$('option', this).each(function(i){
var oLi = $('<li><a href="#" index="'+ i +'">'+ $(this).html() +'</a></li>');
$ul.append(oLi);
});
/* Add click handler to the a */
$ul.find('a').click(function(){
$('a.selected', $wrapper).removeClass('selected');
$(this).addClass('selected');
/* Fire the onchange event */
//if ($select[0].selectedIndex != $(this).attr('index') && $select[0].onchange) { $select[0].selectedIndex = $(this).attr('index'); $select[0].onchange(); }
if ($select[0].selectedIndex != $(this).attr('index')) { $select[0].selectedIndex = $(this).attr('index'); $select.change(); }
//Redundent code
//$select[0].selectedIndex = $(this).attr('index');
$('span:eq(0)', $wrapper).html($(this).html());
$ul.hide();
return false;
});
/* Set the default */
$('a:eq('+ this.selectedIndex +')', $ul).click();
$('span:first', $wrapper).click(function(){$("a.jqTransformSelectOpen",$wrapper).trigger('click');});
oLabel && oLabel.click(function(){$("a.jqTransformSelectOpen",$wrapper).trigger('click');});
this.oLabel = oLabel;
/* Apply the click handler to the Open */
var oLinkOpen = $('a.jqTransformSelectOpen', $wrapper)
.click(function(){
//Check if box is already open to still allow toggle, but close all other selects
if( $ul.css('display') == 'none' ) {jqTransformHideSelect();}
if($select.attr('disabled')){return false;}
$ul.slideToggle('fast', function(){
var offSet = ($('a.selected', $ul).offset().top - $ul.offset().top);
$ul.animate({scrollTop: offSet});
});
return false;
})
;
// Set the new width
var iSelectWidth = $select.outerWidth();
var oSpan = $('span:first',$wrapper);
var newWidth = (iSelectWidth > oSpan.innerWidth())?iSelectWidth+oLinkOpen.outerWidth():$wrapper.width();
$wrapper.css('width',newWidth);
$ul.css('width',newWidth-2);
oSpan.css({width:iSelectWidth});
// Calculate the height if necessary, less elements that the default height
//show the ul to calculate the block, if ul is not displayed li height value is 0
$ul.css({display:'block',visibility:'hidden'});
var iSelectHeight = ($('li',$ul).length)*($('li:first',$ul).height());//+1 else bug ff
(iSelectHeight < $ul.height()) && $ul.css({height:iSelectHeight,'overflow':'hidden'});//hidden else bug with ff
$ul.css({display:'none',visibility:'visible'});
});
};
$.fn.jqTransform = function(options){
var opt = $.extend({},defaultOptions,options);
/* each form */
return this.each(function(){
var selfForm = $(this);
if(selfForm.hasClass('jqtransformdone')) {return;}
selfForm.addClass('jqtransformdone');
$('input:submit, input:reset, input[type="button"]', this).jqTransInputButton();
$('input:text, input:password', this).jqTransInputText();
$('input:checkbox', this).jqTransCheckBox();
$('input:radio', this).jqTransRadio();
$('textarea', this).jqTransTextarea();
if( $('select', this).jqTransSelect().length > 0 ){jqTransformAddDocumentListener();}
selfForm.bind('reset',function(){var action = function(){jqTransformReset(this);}; window.setTimeout(action, 10);});
//preloading dont needed anymore since normal, focus and hover image are the same one
/*if(opt.preloadImg && !jqTransformImgPreloaded){
jqTransformImgPreloaded = true;
var oInputText = $('input:text:first', selfForm);
if(oInputText.length > 0){
//pour ie on eleve les ""
var strWrapperImgUrl = oInputText.get(0).wrapper.css('background-image');
jqTransformPreloadHoverFocusImg(strWrapperImgUrl);
var strInnerImgUrl = $('div.jqTransformInputInner',$(oInputText.get(0).wrapper)).css('background-image');
jqTransformPreloadHoverFocusImg(strInnerImgUrl);
}
var oTextarea = $('textarea',selfForm);
if(oTextarea.length > 0){
var oTable = oTextarea.get(0).oTable;
$('td',oTable).each(function(){
var strImgBack = $(this).css('background-image');
jqTransformPreloadHoverFocusImg(strImgBack);
});
}
}*/
}); /* End Form each */
};/* End the Plugin */
})(jQuery);
你也可以在这里得到同样的结果：http://pastebin.com/Q1pYMKZ2
【讨论】：