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'use strict';
/**
* @ngdoc directive
* @name ng.directive:ngBind
*
* @description
* The `ngBind` attribute tells Angular to replace the text content of the specified HTML element
* with the value of a given expression, and to update the text content when the value of that
* expression changes.
*
* Typically, you don't use `ngBind` directly, but instead you use the double curly markup like
* `{{ expression }}` which is similar but less verbose.
*
* It is preferrable to use `ngBind` instead of `{{ expression }}` when a template is momentarily
* displayed by the browser in its raw state before Angular compiles it. Since `ngBind` is an
* element attribute, it makes the bindings invisible to the user while the page is loading.
*
* An alternative solution to this problem would be using the
* {@link ng.directive:ngCloak ngCloak} directive.
*
*
* @element ANY
* @param {expression} ngBind {@link guide/expression Expression} to evaluate.
*
* @example
* Enter a name in the Live Preview text box; the greeting below the text box changes instantly.
<doc:example>
<doc:source>
<script>
function Ctrl($scope) {
$scope.name = 'Whirled';
}
</script>
<div ng-controller="Ctrl">
Enter name: <input type="text" ng-model="name"><br>
Hello <span ng-bind="name"></span>!
</div>
</doc:source>
<doc:scenario>
it('should check ng-bind', function() {
expect(using('.doc-example-live').binding('name')).toBe('Whirled');
using('.doc-example-live').input('name').enter('world');
expect(using('.doc-example-live').binding('name')).toBe('world');
});
</doc:scenario>
</doc:example>
*/
var ngBindDirective = ngDirective(function(scope, element, attr) {
element.addClass('ng-binding').data('$binding', attr.ngBind);
scope.$watch(attr.ngBind, function ngBindWatchAction(value) {
element.text(value == undefined ? '' : value);
});
});
/**
* @ngdoc directive
* @name ng.directive:ngBindTemplate
*
* @description
* The `ngBindTemplate` directive specifies that the element
* text content should be replaced with the interpolation of the template
* in the `ngBindTemplate` attribute.
* Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`
* expressions. This directive is needed since some HTML elements
* (such as TITLE and OPTION) cannot contain SPAN elements.
*
* @element ANY
* @param {string} ngBindTemplate template of form
* <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.
*
* @example
* Try it here: enter text in text box and watch the greeting change.
<doc:example>
<doc:source>
<script>
function Ctrl($scope) {
$scope.salutation = 'Hello';
$scope.name = 'World';
}
</script>
<div ng-controller="Ctrl">
Salutation: <input type="text" ng-model="salutation"><br>
Name: <input type="text" ng-model="name"><br>
<pre ng-bind-template="{{salutation}} {{name}}!"></pre>
</div>
</doc:source>
<doc:scenario>
it('should check ng-bind', function() {
expect(using('.doc-example-live').binding('salutation')).
toBe('Hello');
expect(using('.doc-example-live').binding('name')).
toBe('World');
using('.doc-example-live').input('salutation').enter('Greetings');
using('.doc-example-live').input('name').enter('user');
expect(using('.doc-example-live').binding('salutation')).
toBe('Greetings');
expect(using('.doc-example-live').binding('name')).
toBe('user');
});
</doc:scenario>
</doc:example>
*/
var ngBindTemplateDirective = ['$interpolate', function($interpolate) {
return function(scope, element, attr) {
// TODO: move this to scenario runner
var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));
element.addClass('ng-binding').data('$binding', interpolateFn);
attr.$observe('ngBindTemplate', function(value) {
element.text(value);
});
}
}];
/**
* @ngdoc directive
* @name ng.directive:ngBindHtml
*
* @description
* Creates a binding that will innerHTML the result of evaluating the `expression` into the current
* element in a secure way. By default, the innerHTML-ed content will be sanitized using the {@link
* ngSanitize.$sanitize $sanitize} service. To utilize this functionality, ensure that `$sanitize`
* is available, for example, by including {@link ngSanitize} in your module's dependencies (not in
* core Angular.) You may also bypass sanitization for values you know are safe. To do so, bind to
* an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}. See the example
* under {@link ng.$sce#Example Strict Contextual Escaping (SCE)}.
*
* Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you
* will have an exception (instead of an exploit.)
*
* @element ANY
* @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.
*/
var ngBindHtmlDirective = ['$sce', function($sce) {
return function(scope, element, attr) {
element.addClass('ng-binding').data('$binding', attr.ngBindHtml);
scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function ngBindHtmlWatchAction(value) {
element.html(value || '');
});
};
}];
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