如何使用HTML内容创建AngularJS UI引导程序弹出窗口?

时间:2013-05-23 19:36:25

标签: angularjs angular-ui angular-ui-bootstrap angularjs-bootstrap

我想创建一个带有pre标签的bootstrap popover,其中包含一个美化的JSON对象。天真的实施,

<span popover='<pre>{[ some_obj | json:"  " ]}</pre>'
      popover-trigger='mouseenter'>

在将内容插入弹出窗口之前将其转义。使用html内容指定弹出框体的最佳方法是什么?

8 个答案:

答案 0 :(得分:71)

<强>更新

正如this中所见,您现在应该可以在不覆盖默认模板的情况下执行此操作。

<强> ORIGINAL:

从角度1.2+ ng-bind-html-unsafe开始已被删除。您应该使用$sce服务。 Reference

以下是用于创建受信任的html的过滤器。

MyApp.filter('unsafe', ['$sce', function ($sce) {
    return function (val) {
        return $sce.trustAsHtml(val);
    };
}]);

以下是使用此过滤器覆盖的 Angular Bootstrap 0.11.2 模板

// update popover template for binding unsafe html
angular.module("template/popover/popover.html", []).run(["$templateCache", function ($templateCache) {
    $templateCache.put("template/popover/popover.html",
      "<div class=\"popover {{placement}}\" ng-class=\"{ in: isOpen(), fade: animation() }\">\n" +
      "  <div class=\"arrow\"></div>\n" +
      "\n" +
      "  <div class=\"popover-inner\">\n" +
      "      <h3 class=\"popover-title\" ng-bind-html=\"title | unsafe\" ng-show=\"title\"></h3>\n" +
      "      <div class=\"popover-content\"ng-bind-html=\"content | unsafe\"></div>\n" +
      "  </div>\n" +
      "</div>\n" +
      "");
}]);

编辑:这是Plunker实施。

编辑2:由于这个答案不断得到点击,我会尽可能地保持更新。作为参考,Here是angular-ui bootstrap repo中的模板。如果此更改,覆盖模板将需要匹配更新,并添加ng-bind-html=\"title | unsafe\"ng-bind-html=\"content | unsafe\"属性以继续工作。

要更新对话,请检查issue here

答案 1 :(得分:24)

使用popover-template指令

如果您使用等于或高于 0.13.0 angular-ui 版本,则最佳选择是使用popover-template指令。以下是如何使用它:

<button popover-template="'popover.html'">My HTML popover</button>

<script type="text/ng-template" id="popover.html">
    <div>
        Popover content
    </div>
</script>

注意:请勿忘记popover-template="'popover.html'"中模板名称周围的引号。

参见 demo plunker

作为旁注,可以将popover模板外部化为专用的html文件,而不是如上所述在<script type="text/ng-template>元素中声明它。

参见 second demo plunker

答案 2 :(得分:9)

我在github项目上发布了一个解决方案:https://github.com/angular-ui/bootstrap/issues/520

我想将此功能添加到您的项目中,这是一个补丁。

添加这些指令:

angular.module("XXX")
    .directive("popoverHtmlUnsafePopup", function () {
      return {
        restrict: "EA",
        replace: true,
        scope: { title: "@", content: "@", placement: "@", animation: "&", isOpen: "&" },
        templateUrl: "template/popover/popover-html-unsafe-popup.html"
      };
    })

    .directive("popoverHtmlUnsafe", [ "$tooltip", function ($tooltip) {
      return $tooltip("popoverHtmlUnsafe", "popover", "click");
    }]);

并添加模板:

<div class="popover {{placement}}" ng-class="{ in: isOpen(), fade: animation() }">
  <div class="arrow"></div>

  <div class="popover-inner">
      <h3 class="popover-title" ng-bind="title" ng-show="title"></h3>
      <div class="popover-content" bind-html-unsafe="content"></div>
  </div>
</div>

用法:<button popover-placement="top" popover-html-unsafe="On the <b>Top!</b>" class="btn btn-default">Top</button>

在plunkr上查看:http://plnkr.co/edit/VhYAD04ETQsJ2dY3Uum3?p=preview

答案 3 :(得分:6)

您需要更改默认弹出框模板以指定您要允许Html内容。 查看popover-content div,它现在已对content属性进行绑定,允许不安全的html:

 angular.module("template/popover/popover.html", []).run(["$templateCache", function ($templateCache) {
        $templateCache.put("template/popover/popover.html",
            "<div class='popover {{placement}}' ng-class='{ in: isOpen(), fade: animation() }'>" + 
            "<div class='arrow'></div><div class='popover-inner'>" + 
            "<h3 class='popover-title' ng-bind='title' ng-show='title'></h3>" + 
            "<div class='popover-content' ng-bind-html-unsafe='content'></div>" +
            "<button class='btn btn-cancel' ng-click='manualHide()'>Cancel</button>" +
            "<button class='btn btn-apply' ng-click='manualHide()'>Apply</button></div></div>");
    }]);

答案 4 :(得分:5)

对于所有传统的Bootstrap popover需求,您可以使用以下角度指令。它可以消除HTML模板中的混乱,并且非常易于使用。

您可以配置popover的titlecontentplacement,淡入/淡出delaytrigger事件以及内容是否应该是视为html。它还可以防止内容溢出和削波。

此处所有代码的相关plunker http://plnkr.co/edit/MOqhJi

Screencap

imgur

<强>用法

<!-- HTML -->
<div ng-model="popup.content" popup="popup.options">Some element</div>

/* JavaScript */
this.popup = {
  content: 'Popup content here',
  options: {
    title: null,
    placement: 'right', 
    delay: { show: 800, hide: 100 }
  }
}; 

<强>的JavaScript

/**
 * Popup, a Bootstrap popover wrapper.
 *
 * Usage: 
 *  <div ng-model="model" popup="options"></div>
 * 
 * Remarks: 
 *  To prevent content overflow and clipping, use CSS
 *  .popover { word-wrap: break-word; }
 *  Popup without title and content will not be shown.
 *
 * @param {String}  ngModel           popup content
 * @param {Object}  options           popup options
 * @param {String}  options.title     title
 * @param {Boolean} options.html      content should be treated as html markup
 * @param {String}  options.placement placement (top, bottom, left or right)
 * @param {String}  options.trigger   trigger event, default is hover
 * @param {Object}  options.delay     milliseconds or { show:<ms>, hide:<ms> }
 */
app.directive('popup', function() {
  return {
    restrict: 'A',
    require: 'ngModel',
    scope: {
      ngModel: '=',
      options: '=popup'
    },
    link: function(scope, element) {
      scope.$watch('ngModel', function(val) {
        element.attr('data-content', val);
      });

      var options = scope.options || {} ; 

      var title = options.title || null;
      var placement = options.placement || 'right';
      var html = options.html || false;
      var delay = options.delay ? angular.toJson(options.delay) : null;
      var trigger = options.trigger || 'hover';

      element.attr('title', title);
      element.attr('data-placement', placement);
      element.attr('data-html', html);
      element.attr('data-delay', delay);
      element.popover({ trigger: trigger });
    }
  };
});

答案 5 :(得分:3)

请参阅https://github.com/jbruni/bootstrap-bower-jbruni,允许使用popover-template

答案 6 :(得分:1)

以下CSS样式似乎已经完成了我想要的特定情况:

.popover-content {
  white-space: pre;
  font-family: monospace;
}

一般性问题仍然存在。

答案 7 :(得分:0)

这是我的解决方案的fiddle

  • 可以访问(您可以使用Tab键激活/停用)。
  • 允许用户悬停弹出窗口,并使弹出窗口保持打开状态。
  • 允许页面上有多个弹出窗口,但在任何给定时间只能激活一个弹出窗口。
  • 尽管引导弹出窗口样式已被借用,但它不依赖任何第三方。

此方法的工作方式是,我们实例化页面上popover数组中将出现的弹出框(请参阅注释中的TODO,以了解如何连接)。

然后,只要用户每次将其切换到或悬停在应触发弹出框的元素上,我们就会在popover数组中激活该特定弹出框。当用户不再将鼠标悬停在元素上时,我们为数组中的特定popover设置超时。如果该超时时间已过,它将进行快速检查,以查看用户是否已将鼠标悬停或重新聚焦(通过制表符)。如果是这样,那么我们将使弹出窗口保持活动状态。如果没有,我们将隐藏弹出窗口。

对于CSS,我不想依赖使用引导程序,因此我直接从引导程序中借用了样式。如果尝试使用引导程序的弹出式样式,则在引导程序运行时可能会遇到一些奇怪的行为,这是我们不需要的自定义弹出式窗口上自己的脚本。

HTML:

 <section>
    <a href="#" 
       ng-mouseover="showPopover(i)" 
       ng-mouseleave="hidePopover(i)"
       ng-focus="showPopover(i)"
       ng-blur="hidePopover(i)">
        I trigger a popover - {{i}}
    </a>
    <popover popover-show="popover[i].popoverTracker">
      <div class="arrow"></div>
      <div class="custom-popover-content"
           ng-mouseover="showPopover(i)" 
           ng-mouseleave="hidePopover(i)"
           ng-focus="showPopover(i)"
           ng-blur="hidePopover(i)">
        <a href="#"
           ng-focus="showPopover(i)"
           ng-blur="hidePopover(i)">You can tab into me, I'm accessible!</a>
        <br/>
        <a href="#" 
           ng-focus="showPopover(i)"
           ng-blur="hidePopover(i)">You can tab into me, I'm accessible!</a>
      </div>
    </popover>
  </section> 

角度控制器和指令:

angular.module('controllers', []);
angular.module('directives', []);
angular.module('myApp', ['ngAnimate', 'controllers', 'directives']);

angular.module('controllers')
    .controller('MainCtrl', function ($scope, $timeout) {

    $scope.popover = [];

    (function init() {
        // TODO: Make this dynamic so that we can pass it a value and it will generate the right amount
        // Initializing the array of popovers on startup
      createPopoverTrackers(20);
        })();

    // Creating an array of popovers equal to the number of popovers on the page
    function createPopoverTrackers(count) {
        for(var i = 0; i < count; i++) {
        $scope.popover.push({
            popoverTracker: false,
          popoverKeepAlive: false,
          timer: null
        })
      }
    }

    // A user has focused on an element that has an associated popover
    $scope.queueOpenPopover = function(index) {
    // Show our specified tracker
    $scope.popover[index].popoverTracker = true;

     // Hide the rest
     Object.keys($scope.popover)
        .filter(function(trackerIndex) {
          return trackerIndex != index
       })
      .forEach(function(trackerIndex) {
          $scope.popover[trackerIndex].popoverTracker = false;
          $scope.popover[trackerIndex].popoverKeepAlive = false;

          const timer = $scope.popover[trackerIndex].timer;
          if(timer) {
             $timeout.cancel(timer);
             $scope.popover[trackerIndex].timer = null;
          }
      })
        };

    // Queuing up the demise of the popover
    $scope.queueKillPopover = function(index) {
      $scope.popover[index].timer = $timeout(function() {
             if (!$scope.popover[index].popoverKeepAlive) {
          // Popover or the popover trigger were not hovered within the time limit, kill it!
          $scope.popover[index].popoverTracker = false;
        }
        }, 700);
    };

    // When a user focuses into the actual popover itself or it's trigger,  we need to keep it alive
    $scope.showPopover = function(index) {
        $scope.popover[index].popoverKeepAlive = true;
      $scope.queueOpenPopover(index);
    };

    // The user has removed focus from the popover or it's trigger, set this to false so the timer knows to kill it
    $scope.hidePopover = function(index) {
        $scope.popover[index].popoverKeepAlive = false;
      $scope.queueKillPopover(index);
    };
});

angular.module('directives')
    .directive('popover', function () {
    return {
        restrict: 'E',
        replace: true,
        transclude: true,
        scope: {
            'popoverShow': '='
        },
        template: '<div class="custom-popover bottom" ng-show="popoverShow" ng-transclude></div>'
    };
});

从引导程序中借用的CSS:

.custom-popover {
    position: absolute;
    z-index: 1010;
    max-width: 276px;
    padding: 1px;
    text-align: left;
    white-space: normal;
    background-color: #fff;
    border: 1px solid rgba(0,0,0,0.2);
    border-radius: 6px;
    box-shadow: 0 5px 10px rgba(0,0,0,0.2);
    background-clip: padding-box;
}

.custom-popover .arrow,
.custom-popover .arrow:after {
  position: absolute;
  display: block;
  width: 0;
  height: 0;
  border-color: transparent;
  border-style: solid;
}

.custom-popover .arrow {
  border-width: 11px;
}

.custom-popover .arrow:after {
  border-width: 10px;
  content: "";
}

.custom-popover.bottom {
  margin-top: 10px;
}

.custom-popover.bottom .arrow {
  top: -11px;
  left: 50%;
  margin-left: -11px;
  border-bottom-color: rgba(0, 0, 0, 0.25);
  border-top-width: 0;
}

.custom-popover.bottom .arrow:after {
  top: 1px;
  margin-left: -10px;
  border-bottom-color: #ffffff;
  border-top-width: 0;
  content: " ";
}

.custom-popover-content {
  padding: 9px 14px;
}