AngularJS ng-repeat 内容上的 Gridster jQuery 插件变坏了 [英] Gridster jQuery plugin on AngularJS ng-repeat content going bad
问题描述
我正在尝试将 Gridster 与 AngularJS 集成,但还没有取得太大的成功.
I'm trying to integrate Gridster with AngularJS, but without too much success yet.
阅读有关 Angular UI 的 ui-jq
指令的文档,我的印象是 这(检查小提琴) 应该工作.但是当我使用 Chrome 的调试器进一步查看时,结果是 这一行,它根本没有找到任何孩子.
Reading the documentation on Angular UI's ui-jq
directive, I get the impression that this (check fiddle) should work. But when I look a bit further with Chrome's debugger, it turns out that on this line, it doesn't find any children at all.
我怀疑在 ng-repeat 指令的某个地方,AngularJS 决定删除将重复的部分,我明白为什么,但这并没有解决我的问题.我欢迎任何能帮助我走得更远的线索.
I suspect that somewhere in the ng-repeat directive, AngularJS decides to rip out the part that will be repeated, and I see why, but that doesn't solve my problem. I'd welcome any clue that would help me to get a little further.
我开始把它变成一个指令,希望能改善情况.但是,嵌套的 ng-repeat
也会妨碍自产指令.我尝试尽可能推迟连接 jQuery 插件 ($evalAsync
) 等,最终使用了 $timeout
.这是唯一的方法,我可以让它发挥作用.
I started turning it into a directive, hoping that would improve things. However, the nested ng-repeat
is also getting in the way in case of a homegrown directive. I tried postponing hooking up the jQuery plugin as long as I could ($evalAsync
) and alike, and eventually ended up using a $timeout
. That's the only way in which I could get it working.
我认为最初的方法永远不会给我我需要的东西.所以实现了一个自定义指令.请看下面我的回答.
I think the original approach would have never given me what I needed. So implemented a custom directive. See my answer below.
推荐答案
我最终为此编写了自己的指令.我需要确保 gridster 可以看到对底层数据的每一次更改,但同时,我不想编写自己对数据模型的监控,并用一个指令替换你通常在 gridster 中所做的一切隐藏了这一切.(这将涉及在指令本身内实现大部分 ng-repeat .)
I eventually ended up writing my own directives for it. I needed to be sure that every change to the underlying data would be seen by gridster, but at the same time, I didn't want to write my own monitoring on the data model and replace everything you normally do within gridster with a directive that hides all of that. (It would involve implementing most of ng-repeat within the directive itself.)
这就是我所拥有的(并假设foo"是我的模块的名称):
This is what I have (and assume "foo" to be the name of my module):
foo.directive "gridster", () -> {
restrict: "E"
template: '<div class="gridster"><div ng-transclude/></div>'
transclude: true
replace: true
controller: () ->
gr = null
return {
init: (elem) ->
ul = elem.find("ul")
gr = ul.gridster().data('gridster')
return
addItem: (elm) ->
gr.add_widget elm
return
removeItem: (elm) ->
gr.remove_widget elm
return
}
link: (scope, elem, attrs, controller) ->
controller.init elem
}
foo.directive "gridsterItem", () -> {
restrict: "A"
require: "^gridster"
link: (scope, elm, attrs, controller) ->
controller.addItem elm
elm.bind "$destroy", () ->
controller.removeItem elm
return
}
有了这个,我可以有一个网格生成的视图,通过添加这个:
With this, I can have a gridster generated view, by adding this:
<gridster>
<ul>
<li ... ng-repeat="item in ..." gridster-item>
<!-- Have something here for displaying that item. -->
<!-- In my case, I'm switching here based on some item properties. -->
</li>
</ul>
</gridster>
每当在 ng-repeat 指令观察到的集合中添加或删除项目时,它们将自动从 gridster 控制的视图中添加和删除.
Whenever items are added to or removed from the collection observed by the ng-repeat directive, they will be automatically added and removed from gridster controlled view.
编辑
这是一个 plunk 演示了该指令的稍微修改版本:
Here is a plunk demonstrating a slightly modified version of this directive:
angular.module('ngGridster', []);
angular.module('ngGridster').directive('gridster', [
function () {
return {
restrict: 'E',
template: '<div class="gridster"><div ng-transclude/></div>',
transclude: true,
replace: true,
controller: function () {
gr = null;
return {
init: function (elem, options) {
ul = $(elem);
gr = ul.gridster(angular.extend({
widget_selector: 'gridster-item'
}, options)).data('gridster');
},
addItem: function (elm) {
gr.add_widget(elm);
},
removeItem: function (elm) {
gr.remove_widget(elm);
}
};
},
link: function (scope, elem, attrs, controller) {
var options = scope.$eval(attrs.options);
controller.init(elem, options);
}
};
}
]);
angular.module('ngGridster').directive('gridsterItem', [
function () {
return {
restrict: 'EA',
require: '^gridster',
link: function (scope, elm, attrs, controller) {
controller.addItem(elm);
elm.bind('$destroy', function () {
controller.removeItem(elm);
});
}
};
}
]);
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