动态选项卡中的动态内容(Angular、UI Bootstrap) [英] Dynamic Content in Dynamic Tab (Angular, UI Bootstrap)

问题描述

我想在使用 AngularJs 和 UI Bootstrap 动态生成的选项卡的内容中使用 ng-include.

我这里有一个Plunker:http://plnkr.co/edit/2mpbovsu2eDrUdu8t7SM?p=preview

<uib-tabset><uib-tab ng-repeat="tab in tabs" active="tab.active" disable="tab.disabled"><uib-tab-heading>{{tab.title}} <i class="glyphicon glyphicon-remove-sign" ng-click="removeTab($index)"></i></uib-tab-heading>{{tab.content}}</uib-tab></uib-tabset>

JS代码:

$scope.addTab = function() {var len = $scope.tabs.length + 1;var numLbl = '' + ((len > 9) ? '' : '0') + String(len);var mrkUp = '
'+'<h1>新标签' + numLbl + ' {{foo}}</h1>'+'<div ng-include="tab.tabUrl" class="ng-scope"></div>'+'</div>';$scope.tabs.push({title: 'Tab ' + numLbl, content: $compile(angular.element(mrkUp))($scope)});}

在Plunker 中，单击添加选项卡"按钮.它调用 $scope 中的一个函数，该函数将一个新选项卡推送到集合，但传入一些包含 ng-include 指令的动态生成的内容.预期的输出是 ng-include 将显示在选项卡内容区域内.

谢谢

解决方案

在您的 Plunker 中，您使用的是 ng-bind-html，它不会为您编译 HTML.您可以创建一个为您执行此操作的新指令.

ng-bind-html 的源代码:

var ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {返回 {限制:'A'，编译:函数 ngBindHtmlCompile(tElement, tAttrs) {var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function getStringValue(value) {return (value || '').toString();});$compile.$$addBindingClass(tElement);返回函数 ngBindHtmlLink(scope, element, attr) {$compile.$$addBindingInfo(element, attr.ngBindHtml);scope.$watch(ngBindHtmlWatch, 函数 ngBindHtmlWatchAction() {//我们重新评估 expr 因为我们想要 TrustedValueHolderType//对于 $sce，不是字符串element.html($sce.getTrustedHtml(ngBindHtmlGetter(scope)) || '');});};}};}];

为新指令选择一个名称，例如 compile-html.

将 tAttrs.ngBindHtml 替换为 tAttrs.compileHtml(或您选择的任何名称).

您需要将 $sce.getTrustedHtml 替换为 $sce.trustAsHtml，否则您将收到 Error: [$sce:unsafe] Attempting to use an安全上下文中的不安全值.

然后需要调用$compile:

$compile(element.contents())(scope);

完整指令:

app.directive('compileHtml', ['$sce', '$parse', '$compile',函数($sce，$parse，$compile){返回 {限制:'A'，编译:函数 ngBindHtmlCompile(tElement, tAttrs) {var ngBindHtmlGetter = $parse(tAttrs.compileHtml);var ngBindHtmlWatch = $parse(tAttrs.compileHtml, function getStringValue(value) {return (value || '').toString();});$compile.$$addBindingClass(tElement);返回函数 ngBindHtmlLink(scope, element, attr) {$compile.$$addBindingInfo(element, attr.compileHtml);scope.$watch(ngBindHtmlWatch, 函数 ngBindHtmlWatchAction() {element.html($sce.trustAsHtml(ngBindHtmlGetter(scope)) || '');$compile(element.contents())(scope);});};}};}]);

用法:

<div compile-html="tab.content"></div>

演示: http://plnkr.co/edit/TRYAaxeEPMTAay6rqEXp?p=预览

I'd like to use ng-include in the content of a dynamically generated tab using AngularJs and UI Bootstrap.

I have a Plunker here: http://plnkr.co/edit/2mpbovsu2eDrUdu8t7SM?p=preview

<div id="mainCntr" style="padding: 20px;">
  <uib-tabset>
    <uib-tab ng-repeat="tab in tabs" active="tab.active" disable="tab.disabled">
      <uib-tab-heading>
        {{tab.title}} <i class="glyphicon glyphicon-remove-sign" ng-click="removeTab($index)"></i>
      </uib-tab-heading>
      {{tab.content}}
    </uib-tab>
  </uib-tabset>
</div>

JS Code:

$scope.addTab = function() {
    var len = $scope.tabs.length + 1;
    var numLbl = '' + ((len > 9) ? '' : '0') + String(len);

    var mrkUp = '<div>' +
        '<h1>New Tab ' + numLbl + ' {{foo}}</h1>' + 
        '<div ng-include="tab.tabUrl" class="ng-scope"></div>' +
        '</div>';

    $scope.tabs.push({title: 'Tab ' + numLbl, content: $compile(angular.element(mrkUp))($scope)});
}

In the Plunker, click the "Add Tab" button. It calls a function in $scope that pushes a new tab to the collection but passing in some dynamically generated content that includes a ng-include directive. The expected output is that the ng-include will be displayed inside of the tab content area.

Thanks

解决方案

In your Plunker you are using ng-bind-html which doesn't compile the HTML for you. You can create a new directive that does that for you.

Source code for ng-bind-html:

var ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {
  return {
    restrict: 'A',
    compile: function ngBindHtmlCompile(tElement, tAttrs) {
      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);
      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function getStringValue(value) {
        return (value || '').toString();
      });
      $compile.$$addBindingClass(tElement);

      return function ngBindHtmlLink(scope, element, attr) {
        $compile.$$addBindingInfo(element, attr.ngBindHtml);

        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {
          // we re-evaluate the expr because we want a TrustedValueHolderType
          // for $sce, not a string
          element.html($sce.getTrustedHtml(ngBindHtmlGetter(scope)) || '');
        });
      };
    }
  };
}];

Pick a name for the new directive, for example compile-html.

Replace tAttrs.ngBindHtml with tAttrs.compileHtml (or whatever name you picked).

You need to replace $sce.getTrustedHtml with $sce.trustAsHtml, or you will get Error: [$sce:unsafe] Attempting to use an unsafe value in a safe context.

Then you need to call $compile:

$compile(element.contents())(scope);

Full directive:

app.directive('compileHtml', ['$sce', '$parse', '$compile',
  function($sce, $parse, $compile) {
    return {
      restrict: 'A',
      compile: function ngBindHtmlCompile(tElement, tAttrs) {
        var ngBindHtmlGetter = $parse(tAttrs.compileHtml);
        var ngBindHtmlWatch = $parse(tAttrs.compileHtml, function getStringValue(value) {
          return (value || '').toString();
        });
        $compile.$$addBindingClass(tElement);

        return function ngBindHtmlLink(scope, element, attr) {
          $compile.$$addBindingInfo(element, attr.compileHtml);

          scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {

            element.html($sce.trustAsHtml(ngBindHtmlGetter(scope)) || '');
            $compile(element.contents())(scope);
          });
        };
      }
    };
  }
]);

Usage:

<div compile-html="tab.content"></div>

Demo: http://plnkr.co/edit/TRYAaxeEPMTAay6rqEXp?p=preview

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