我最近做了一个指令来保存和加载仪表板小部件的位置。它是小部件 div 的一个简单属性。
appControl.directive('saveLoadGridsterPosition', ['whateverStoringDependency', function($whateverStoringDependency)
{
return function(scope, element, attrs) {
var objectLoaded = whateverStoringDependency.load(attrs.saveLoadGridsterPosition);
// Empty or errorous load
if ((objectLoaded == undefined ) || (objectLoaded == null )) {
console.log('Error loading ' + attrs.saveLoadGridsterPosition+'\'s position.');
}
else {
// Here you set the row/col somewhere in the scope, for me its like scope.widget.row
scope.widget.row = objectLoaded.row;
scope.widget.col = objectLoaded.col;
}
var save = function() {
// Here you should get the row/col from the scope
var r = scope.widget.row;
var c = scope.widget.col;
var savingObject = {row: r, col: c};
whateverStoringDependency.save(attrs.saveLoadGridsterPosition, savingObject);
}
scope.$on('$destroy', save);
}
}]);
'whateverStoringDependency'
可以是从本地存储、cookie 或会话中保存/加载内容的自定义服务。然后我像这样使用它:
<div gridster="gridsterOpts">
<ul>
<li ng-repeat="widget in widgets" gridster-item row="widget.row" col="widget.col" size-x="widget.sizeX" size-y="widget.sizeY">
<div data-widget="widget" save-load-gridster-position="{{widget.name}}"></div>
</li>
</ul>
</div>
也许这不是很好,但对我来说它工作得很好。它也可以在任何角度事件上执行此操作,例如您定义"savePositions"
和侦听它而不是"$destroy"
. 希望能帮助到你!