是否可以创建可用作表格行(或tbody)的Angular Dart组件?我想做这样的事情:
<table>
<my-component ng-repeat="value in ctrl.values" param="value"></my-component>
</table>
而不是很难看:
<table>
<tr ng-repeat="value in ctrl.values"> ...(here some td's)...</tr>
</table>
如果没有,有什么方法可以实现类似的目标吗?
谢谢,
罗伯特
答案 0 :(得分:2)
这是你在找什么?
library main;
import 'package:angular/angular.dart';
import 'package:di/di.dart';
class Item {
String name;
Item(this.name);
}
@NgComponent(
selector: 'tr[is=my-tr]',
publishAs: 'ctrl',
visibility: NgDirective.CHILDREN_VISIBILITY,
applyAuthorStyles: true,
template: '''<content></content><span>{{ctrl.value.name}}</span><span> - </td><td>{{ctrl.value}}</span>'''
)
class MyTrComponent extends NgShadowRootAware{
@NgTwoWay('param') Item value;
MyTrComponent() {
print('MyTrComponent');
}
@override
void onShadowRoot(ShadowRoot shadowRoot) {
var elements = new List<Element>.from(shadowRoot.children.where((e) => !(e is StyleElement) && !(e is ContentElement)));
ContentElement ce = shadowRoot.querySelector('content');
elements.forEach((e) {
e.remove();
var td = new TableCellElement();
td.append(e);
print('append: ${e.tagName}');
ce.append(td);
});
}
}
@NgController(
selector: "[ng-controller=row-ctrl]",
publishAs: "ctrl",
visibility: NgDirective.CHILDREN_VISIBILITY
)
class RowController {
List<Item> values = [new Item('1'), new Item('2'), new Item('3'), new Item('4')];
RowController() {
print('RowController');
}
}
class MyAppModule extends Module {
MyAppModule() {
type(MyTrComponent);
type(RowController);
}
}
void main() {
ngBootstrap(module: new MyAppModule());
}
<!DOCTYPE html>
<html ng-app>
<head>
<meta charset="utf-8">
<title>Angular playground</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<h1>Angular playground</h1>
<p>Custom TableRow</p>
<table ng-controller="row-ctrl" >
<tr is="my-tr" ng-repeat="value in ctrl.values" param="value"></tr>
</table>
<script type="application/dart" src="index.dart"></script>
<script src="packages/browser/dart.js"></script>
</body>
</html>
使用其他标记名称<my-component>
是不可能的,因为<table>
不会接受此类标记作为内容,因此我调整了聚合物如何使用选择器'tr[is=my-tr]'
定义扩展DOM元素。在Angular中,只要标记名称为tr
,其他选择器就可以。
您可以在此GitHub repo - angular_playground
中找到项目的源代码结果屏幕截图