当我按下右/左箭头时，我试图使用jQuery滚动到特定的缩略图（在模态内）（当用户点击图像时，模态会弹出）。当用户点击缩略图时，我能够使滚动工作，但当变量 current2 发生变化时，我无法触发点击。任何帮助将不胜感激。
我是Angular.js的新手，所以如果有其他改进代码的建议，我们将不胜感激。
<body ng-app="mediaGallery" class="ng-cloak" ng-controller="mediaGalleryCtrl">
<div class="row">
<div class="small-8 columns">
<div class="small-3 columns">
<div ng-repeat="obj in array">
<div ng-if="$index < 4">
<img ng-click="changeMainMedia($index, 'current1')" class="thumbnail" ng-src="{{obj.src}}" />
</div>
<div ng-if="$index == 4">
<div class="thumbnail" data-open="media-gallery">
<label class="text-right success label">{{array.length - 3}} +</label>
</div>
</div>
</div>
</div>
<div class="small-9 columns">
<img data-open="media-gallery" class="main-gallery" ng-src="{{array[current1].src}}" />
</div>
</div>
</div>
<div ng-keydown="key($event)" id="media-gallery" class="small reveal text-center media-gallery" data-reveal>
<div class="modal-body">
<div class="main-media">
<img class="main-gallery media-gallery-main" ng-src="{{array[current2].src}}" />
<hr>
<div class="nested-media" scroll-thumbnail>
<img ng-click="changeMainMedia($index, 'current2')" ng-repeat="obj in array" class="thumbnail media-gallery-thumbnail" ng-src="{{obj.src}}" />
</div>
</div>
<button class="close-button" data-close aria-label="Close reveal" type="button">
<span aria-hidden="true">x</span>
</button>
</div>
</div>
<script>
var app = angular.module("mediaGallery", []);
app.controller("mediaGalleryCtrl", ['$scope', function(scope) {
var array = [{
src: "https://placeimg.com/640/480/any"
}, {
src: "https://placeimg.com/640/480/tech"
}, {
src: "https://placeimg.com/640/480/animals"
}, {
src: "https://placeimg.com/640/480/nature"
}, {
src: "https://placeimg.com/640/480/arch"
}, {
src: "https://placeimg.com/640/480/people"
}];
scope.array = array;
scope.current1 = 0
scope.current2 = 0;
scope.changeMainMedia = function(index, key) {
scope[key] = index;
}
scope.key = function($event) {
var previous = -1;
var current = scope.current2;
if ($event.keyCode == "39") {
previous = current;
current = (current + 1) % array.length;
} else if ($event.keyCode == "37") {
previous = current;
current = (current - 1) % array.length;
}
current = current < 0 ? (array.length + current) : current;
scope.current2 = current;
}
}]);
app.directive('scrollThumbnail', function() {
return {
link: function(scope, elem, attrs) {
elem.on("click", function(event) {
$(this).animate({
scrollLeft: $(event.target).position().left
}, "slow");
});
}
};
});
$(document).foundation()
</script>
</body>
答案 0 :(得分：1)
这是一个不需要jQuery的解决方案。我评论了我对您的代码所做的更改。
<!DOCTYPE HTML>
<html>
<head>
<title>index</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="description" />
<meta name="author">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.3.0/css/foundation.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.6/angular.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.3.0/js/foundation.js"></script>
<style>
.media-gallery .media-gallery-thumbnail {
max-height: 5em;
display: inline-block
}
.media-gallery .media-gallery-main {
height: auto;
width: auto;
max-height: 20em;
}
.media-gallery .nested-media {
overflow-x: scroll;
white-space: nowrap;
}
.media-gallery .media-gallery-main {
max-width: 100%;
-moz-transition: all 0.3s;
-webkit-transition: all 0.3s;
transition: all 0.3s;
}
.media-gallery .media-gallery-main:hover {
-moz-transform: scale(1.5);
-webkit-transform: scale(1.5);
transform: scale(1.5);
}
[ng\:cloak],
[ng-cloak],
[data-ng-cloak],
[x-ng-cloak],
.ng-cloak,
.x-ng-cloak {
display: none !important;
}
</style>
</head>
<body ng-app="mediaGallery" class="ng-cloak" ng-controller="mediaGalleryCtrl">
<div class="row">
<div class="small-8 columns">
<div class="small-3 columns">
<div ng-repeat="obj in array">
<div ng-if="$index < 4">
<img ng-click="changeMainMedia($index, 'current1', $event)" class="thumbnail" ng-src="{{obj.src}}" />
</div>
<div ng-if="$index == 4">
<div class="thumbnail" data-open="media-gallery">
<label class="text-right success label">{{array.length - 3}} +</label>
</div>
</div>
</div>
</div>
<div class="small-9 columns">
<img data-open="media-gallery" class="main-gallery" ng-src="{{array[current1].src}}" />
</div>
</div>
</div>
<div ng-keydown="key($event)" id="media-gallery" class="small reveal text-center media-gallery" data-reveal>
<div class="modal-body">
<div class="main-media">
<img class="main-gallery media-gallery-main" ng-src="{{array[current2].src}}" />
<hr>
<div class="nested-media" scroll-thumbnail>
<img ng-click="changeMainMedia($index, 'current2', $event)" ng-repeat="obj in array" class="thumbnail media-gallery-thumbnail" ng-src="{{obj.src}}" />
</div>
</div>
<button class="close-button" data-close aria-label="Close reveal" type="button">
<span aria-hidden="true">x</span>
</button>
</div>
</div>
<script>
var app = angular.module("mediaGallery", []);
app.controller("mediaGalleryCtrl", ['$scope', function (scope) {
var array = [{
src : "https://placeimg.com/640/480/any"
}, {
src : "https://placeimg.com/640/480/tech"
}, {
src : "https://placeimg.com/640/480/animals"
}, {
src : "https://placeimg.com/640/480/nature"
}, {
src : "https://placeimg.com/640/480/arch"
}, {
src : "https://placeimg.com/640/480/people"
}
];
scope.array = array;
scope.current1 = 0
scope.current2 = 0;
scope.changeMainMedia = function (index, key, $event) {
scope[key] = index;
// Use scroll function to scroll to element after click
// $event parameter is added to retrieve the node value
scope.scroll($event.target);
}
// Animate scrolling
// Midified from: http://stackoverflow.com/a/8918062/529024
scope.scrollTo = function (element, to, duration) {
if (duration <= 0)
return;
var difference = to - element.scrollLeft;
var perTick = difference / duration * 10;
setTimeout(function () {
element.scrollLeft = element.scrollLeft + perTick;
if (element.scrollLeft === to)
return;
scope.scrollTo(element, to, duration - 10);
}, 10);
}
// calculate scroll position and starting scroll animation
scope.scroll = function (element) {
// Get center of parent
var left = element.offsetLeft;
var scroll = left - element.parentElement.scrollLeft;
// Start scroll
scope.scrollTo(element.parentElement, scroll, 300);
}
scope.key = function ($event) {
var previous = -1;
var current = scope.current2;
if ($event.keyCode == "39") {
previous = current;
current = (current + 1) % array.length;
} else if ($event.keyCode == "37") {
previous = current;
current = (current - 1) % array.length;
}
current = current < 0 ? (array.length + current) : current;
scope.current2 = current;
// Scroll to element
scope.scroll(scope.getElement());
}
// get the element that is matching current2 value
scope.getElement = function () {
var parent = scope.parentElement;
var children = parent.children();
return children.eq(scope.current2)[0];
}
// This function is used by directive scrollThumbnail to set the parent element
// and use it to get element sibilings
scope.setElement = function (element) {
scope.parentElement = element;
}
}
]);
app.directive('scrollThumbnail', function () {
return {
scope : true,
link : function (scope, elem, attrs) {
// set element to scope.parentElement.
scope.setElement(elem);
}
};
});
$(document).foundation()
</script>
</body>
</html>
这是一个JSBin链接：https://jsbin.com/ruzikilexe/1/edit?html,output