我正在使用javascript动态构建一个jssor滑块。滑块基于jssor＆＃39; carousel＆＃39;演示。显示时一切看起来都正确，包括滑块两端的导航箭头。当我用鼠标向左或向右滑动时，它也会正确响应。但是，滑块不会响应导航箭头上的任何点击。
我在其他帖子中提到过的一个问题是导航箭头的嵌套不当。我不认为这是问题所在。任何帮助都将非常感激。
以下是构建滑块的javascript：
var CpxRowSlider = function(callback) {
var callback;
var indexedImgEl = new Array();
var DEFAULT_H = 110;
var DEFAULT_W = 260;
var outerDivEl = document.createElement('div');
var title = true;
var addNavArrows = true;
var sliderDivEl = null;
var sliderId = "slider_SOLO";
/*
* image set should be an array of key-value pairs where the value is the
* URL of an image and the key will be used as a tag that identifies the
* image in any callback functions.
*/
function create(imageSet) {
/* Slides Container -- */
var rowDivEl = document.createElement('div');
$(rowDivEl).attr("u", "slides");
$(rowDivEl).css({
"cursor" : "move",
"position" : "absolute",
"left" : "0px",
"top" : "0px",
"width" : "780px",
"height" : "110px",
"overflow" : "hidden"
});
for ( var key in imageSet) {
var imgUrl = imageSet[key];
var imgDivEl = document.createElement('div');
var imgEl = document.createElement('img');
imgEl.src = imgUrl;
$(imgEl).attr("u", "image");
imgDivEl.appendChild(imgEl);
// add to row
rowDivEl.appendChild(imgDivEl);
$(imgEl).data("cpxKey", key);
/*
* actions associated with the img....
*/
/*
* click event gets handed off via callback
*/
if ((callback != undefined) && (callback != null)) {
imgEl.onclick = function(evt) {
var targetImg = evt.target;
trace("Click on " + $(targetImg).data("cpxKey"));
callback($(targetImg).data("cpxKey"));
};
}
}
// add slides to a slider...
sliderDivEl = document.createElement('div');
sliderDivEl.id = sliderId
$(sliderDivEl).css({
"position" : "relative",
"left" : "0px",
"top" : "0px",
"width" : "780px",
"height" : "110px"
});
// add to DOM
sliderDivEl.appendChild(rowDivEl);
if (addNavArrows) {
sliderDivEl.appendChild(createNavArrow(true));
sliderDivEl.appendChild(createNavArrow(false));
}
outerDivEl.appendChild(sliderDivEl);
}
function createNavArrow(toLeft) {
var arrowSpan = document.createElement('span');
$(arrowSpan).attr("u", "image");
$(arrowSpan).css({
"top" : "30px",
"width" : "55px",
"height" : "55px"
});
if (toLeft) {
$(arrowSpan).css({
"left" : "5px"
});
$(arrowSpan).addClass("jssora03l");
} else {
$(arrowSpan).css({
"right" : "5px"
});
$(arrowSpan).addClass("jssora03r");
}
return arrowSpan;
}
/*
* Invoked only AFTER the slider has been added to the DOM
*/
function finalize() {
// add to sliders being controlled by jssor
var sliderOptions = getSliderOptions();
var jssor_sliderh = new $JssorSlider$(sliderId, sliderOptions);
}
function getSliderOptions() {
var sliderhOptions = {
/*
* $AutoPlay [Optional] Whether to auto play, to enable slideshow,
* this option must be set to true, default value is false
*/
$AutoPlay : false,
/*
* $PauseOnHover [Optional] Whether to pause when mouse over if a
* slider is auto playing, 0 no pause, 1 pause for desktop, 2 pause
* for touch device, 3 pause for desktop and touch device, default
* value is 1
*/
$PauseOnHover : 1,
/*
* $AutoPlaySteps [Optional] Steps to go for each navigation request
* (this options applys only when slideshow disabled), the default
* value is 1
*/
$AutoPlaySteps : 2,
/*
* $ArrowKeyNavigation [Optional] Allows keyboard (arrow key)
* navigation or not, default value is false
*/
// $ArrowKeyNavigation : true,
/*
* [Optional] Specifies default duration (swipe) for slide in
* milliseconds, default value is 500
*/
$SlideDuration : 300,
/*
* [Optional] Minimum drag offset to trigger slide , default value
* is 20
*/
$MinDragOffsetToSlide : 20,
/*
* [Optional] Width of every slide in pixels, default value is width
* of 'slides' container
*/
$SlideWidth : DEFAULT_W,
/*
* [Optional] Height of every slide in pixels, default value is
* height of 'slides' container
*/
// $SlideHeight: 150,
/*
* [Optional] Space between each slide in pixels, default value is 0
*/
$SlideSpacing : 3,
/*
* [Optional] Number of pieces to display (the slideshow would be
* disabled if the value is set to greater than 1), the default
* value is 1
*/
$DisplayPieces : 3,
/*
* [Optional] The offset position to park slide (this options applys
* only when slideshow disabled), default value is 0.
*/
$ParkingPosition : 0,
/*
* [Optional] The way (0 parellel, 1 recursive, default value is 1)
* to search UI components (slides container, loading screen,
* navigator container, arrow navigator container, thumbnail
* navigator container etc).
*/
$UISearchMode : 0,
// ...................................
// [Optional] Options to specify and enable navigator or not
$BulletNavigatorOptions : {
$Class : $JssorBulletNavigator$, // [Required] Class to
// create navigator instance
$ChanceToShow : 1, // [Required] 0 Never, 1 Mouse Over, 2
// Always
$AutoCenter : 0, // [Optional] Auto center navigator in
// parent container, 0 None, 1 Horizontal, 2
// Vertical, 3 Both, default value is 0
$Steps : 1, // [Optional] Steps to go for each navigation
// request, default value is 1
$Lanes : 1, // [Optional] Specify lanes to arrange items,
// default value is 1
$SpacingX : 0, // [Optional] Horizontal space between each item
// in pixel, default value is 0
$SpacingY : 0, // [Optional] Vertical space between each item
// in pixel, default value is 0
$Orientation : 1
// [Optional] The orientation of the navigator, 1 horizontal, 2
// vertical, default value is 1
}
}
return sliderhOptions;
}
function trace(msg) {
console.log("CpxRowSlider: " + msg);
}
return {
create : create,
finalize : finalize,
getContainer : function() {
return outerDivEl;
}
};
};
更新： 好吧，一些挖掘出现了＆＃34;其中＆＃34;但是＆＃34;为什么＆＃34;仍然是一个谜。生成的HTML应该看起来像这样（减去＆＃34;样式＆＃34;为了清晰起见）：
<div id="slider_SOLO" >
<div u="slides">
<div>
<img u="image" src="../foo1.jpg" />
</div>
<div>
<img u="image" src="../foo2.jpg" />
</div>
<div>
<span u="arrowleft" class="jssora03l" ></span>
<span u="arrowright" class="jssora03r"></span>
</div>
问题是在实际的HTML页面中有两个元素，其属性为u =＆＃34; slide＆＃34;。第二个是正确的，但在它是另一个空div之前。换句话说，我在检查显示的HTML时看到的DOM更像是：
<div id="slider_SOLO" >
<div u="slides"></div>
<div u="slides">
<div>
<img u="image" src="../foo1.jpg" />
</div>
<div>
<img u="image" src="../foo2.jpg" />
</div>
<div>
<span u="arrowleft" class="jssora03l" ></span>
<span u="arrowright" class="jssora03r"></span>
</div>
如果我在jssor carousel demo HTML中添加一个类似的div，我会得到相同的行为（即导航箭头不再有效）。
问题是我的javascript没有插入错误（即额外的DIV）。相反，它似乎与呼叫相关联
var jssor_sliderh = new $JssorSlider$(sliderId, sliderOptions);
我想知道原因是否是我传递的选项中的原因。
答案 0 :(得分：1)
对我而言，外卖课程是，jssor似乎在某种意义上悄然失败，而不是生成关于缺失选项的控制台消息，它根本就什么都不做。