AngularJS+BootStrap实现弹出对话框

参考资料：

若想要实现对话框弹出效果，可以使用angular的$modal服务。Github上的解释如下:

$modal is a service to quickly create AngularJS-powered modal windows. Creating custom modals is straightforward: create a partial view, its controller and reference them when using the service.

The $modal service has only one method: open(options) where available options are like follows:

templateUrl - a path to a template representing modal's content

template - inline template representing the modal's content

scope - a scope instance to be used for the modal's content (actually the $modal service is going to create a child scope of a provided scope). Defaults to $rootScope

controller - a controller for a modal instance - it can initialize scope used by modal. Accepts the "controller-as" syntax in the form 'SomeCtrl as myctrl'; can be injected with $modalInstance

controllerAs - an alternative to the controller-as syntax, matching the API of directive definitions. Requires the controller option to be provided as well

bindToController - when used with controllerAs & set to true, it will bind the $scope properties onto the controller directly

resolve - members that will be resolved and passed to the controller as locals; it is equivalent of the resolve property for AngularJS routes

animation - set to false to disable animations on new modal/backdrop. Does not toggle animations for modals/backdrops that are already displayed.

backdrop - controls presence of a backdrop. Allowed values: true (default), false (no backdrop), 'static' - backdrop is

present but modal window is not closed when clicking outside of the modal window.

keyboard - indicates whether the dialog should be closable by hitting the ESC key, defaults to true

backdropClass - additional CSS class(es) to be added to a modal backdrop template

windowClass - additional CSS class(es) to be added to a modal window template

windowTemplateUrl - a path to a template overriding modal's window template

size - optional suffix of modal window class. The value used is appended to the modal- class, i.e. a value of sm gives modal-sm

openedClass - class added to the body element when the modal is opened. Defaults to modal-open

Global defaults may be set for $modal via $modalProvider.options.

The open method returns a modal instance, an object with the following properties:

close(result) - a method that can be used to close a modal, passing a result

dismiss(reason) - a method that can be used to dismiss a modal, passing a reason

result - a promise that is resolved when a modal is closed and rejected when a modal is dismissed

opened - a promise that is resolved when a modal gets opened after downloading content's template and resolving all variables

rendered - a promise that is resolved when a modal is rendered.

In addition the scope associated with modal's content is augmented with 2 methods:

$close(result)

$dismiss(reason)

Those methods make it easy to close a modal window without a need to create a dedicated controller.

If the $scope is destroyed via unexpected mechanism, such as it being passed in the modal options and a $route/$state transition occurs,

the modal will be dismissed with the value $uibUnscheduledDestruction.

Finally, a modal.closing event is broadcast to the modal scope before the modal closes. If the listener calls preventDefault on the event,

then the modal will remain open. The $close and $dismiss methods return true if the event was allowed.

The event itself includes a parameter for the result/reason and a boolean parameter that indicates whether the modal is being closed (true) or dismissed.

译文如下:

$modal是一个可以迅速创建模态窗口的服务，创建部分页，控制器，并关联他们。

$modal仅有一个方法open(options)，可以使用的选项如下:

templateUrl：模态窗口的地址

template：用于显示html标签

scope：一个作用域为模态的内容使用（事实上，$modal会创建一个当前作用域的子作用域）默认为$rootScope

controller：为$modal指定的控制器，初始化$scope，该控制器可用$modalInstance注入

resolve：定义一个成员并将他传递给$modal指定的控制器，相当于routes的一个reslove属性，如果需要传递一个objec对象，需要使用angular.copy()

backdrop：控制背景，允许的值：true（默认），false（无背景），“static” - 背景是存在的，但点击模态窗口之外时，模态窗口不关闭

keyboard：当按下Esc时，模态对话框是否关闭，默认为ture

windowClass：指定一个class并被添加到模态窗口中

open方法返回一个模态实例，该实例有如下属性

close(result)：关闭模态窗口并传递一个结果

dismiss(reason)：撤销模态方法并传递一个原因

result：一个契约，当模态窗口被关闭或撤销时传递

opened：一个契约，当模态窗口打开并且加载完内容时传递的变量

另外，$modalInstance扩展了两个方法$close(result)、$dismiss(reason)，这些方法很容易关闭窗口并且不需要额外的控制器

实战：

在app.js中需要加入依赖ui.bootstrap，需要在index.html中引入ui-bootstrap-tpls-0.7.0.js。

以下为html代码:

<div ng-controller="ModalDemoCtrl">

<span style="white-space:pre">	</span><script type="text/ng-template" id="myModalContent.html">

<span style="white-space:pre">	</span><div class="modal-header">

<span style="white-space:pre">		</span><h3 class="modal-title">I'm a modal!</h3>

<span style="white-space:pre">	</span></div>

<span style="white-space:pre">	</span><div class="modal-body">

<span style="white-space:pre">		</span><ul>

<span style="white-space:pre">		</span>     <li ng-repeat="item in items">

<span style="white-space:pre">	</span>                    <a href="#" ng-click="$event.preventDefault(); selected.item = item">{{ item }}</a>

                     </li>

                </ul>

              Selected: <b>{{ selected.item }}</b>

        </div>

        <div class="modal-footer">

            <button class="btn btn-primary" type="button" ng-click="ok()">OK</button>

            <button class="btn btn-warning" type="button" ng-click="cancel()">Cancel</button>

        </div>

    </script>

    <button type="button" class="btn btn-default" ng-click="open()">Open me!</button>

    <button type="button" class="btn btn-default" ng-click="open('lg')">Large modal</button>

    <button type="button" class="btn btn-default" ng-click="open('sm')">Small modal</button>

    <button type="button" class="btn btn-default" ng-click="toggleAnimation()">Toggle Animation ({{ animationsEnabled }})</button>

    <div ng-show="selected">Selection from a modal: {{ selected }}</div></div>
     angular.module('ui.bootstrap.demo').controller('ModalDemoCtrl',function ($scope,$modal,$log) {

       $scope.items = ['item1','item2','item3'];

       $scope.animationsEnabled = true;

       $scope.open = function (size) {

         var modalInstance = $modal.open({

               animation: $scope.animationsEnabled,

               templateUrl: 'myModalContent.html',

               controller: 'ModalInstanceCtrl',

               size: size,

               resolve: {

               items: function () {

                     return $scope.items;

});

以下为JS代码:

modalInstance.result.then(function (selectedItem) {

      $scope.selected = selectedItem;    },

      function () {

           $log.info('Modal dismissed at: ' + new Date());    });  };

     $scope.toggleAnimation = function () {

          $scope.animationsEnabled = !$scope.animationsEnabled;  }; });

     // Please note that $modalInstance represents a modal window (instance) dependency.

     // It is not the same as the $modal service used above.

     angular.module('ui.bootstrap.demo').controller('ModalInstanceCtrl',$modalInstance,items) {

      $scope.items = items;

      $scope.selected = {

           item: $scope.items[0]  };

      $scope.ok = function () {

         $modalInstance.close($scope.selected.item);  };

     $scope.cancel = function () {    $modalInstance.dismiss('cancel');

     };});

出现如下错误:

Modal dismissed at: Mon Sep 14 2015 18:53:33 GMT+0800 (中国标准时间)

也就是说bootstrap.min.css、ui-bootstrap-tpls-0.13.4.js、angular.js要保持一定的版本关系。

在将ui-bootstrap-tpls的版本改为0.13.4之后，又出现如下错误提示:

Error: [$injector:unpr] Unknown provider: $templateRequestProvider <- $templateRequest <- $modal

如果是因为版本冲突的原因，自己就尝试着更换ui-bootstrap-tpls的版本，结果当试到ui-bootstrap-tpls-0.9.0.js时，发现问题解决了。截图如下:

在热心网友破狼的大力支持下，问题终于解决了，在此表示深深的谢意。

AngularJS进阶(六)AngularJS+BootStrap实现弹出对话框

AngularJS+BootStrap实现弹出对话框

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