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'use strict';
/**
* @workInProgress
* @ngdoc overview
* @name angular.directive
* @description
*
* Custom attributes for DOM elements. Directives modify the behavior of the element they are
* specified in, but are not intended to add elements to the DOM as are
* {@link angular.widget widgets}.
*
* Following is the list of built-in angular directives:
*
* * {@link angular.directive.ng:bind ng:bind} - Creates a data-binding between HTML text value and
* data model.
* * {@link angular.directive.ng:bind-attr ng:bind-attr} - Creates a data-binding as in `ng:bind`,
* but uses JSON key / value pairs.
* * {@link angular.directive.ng:bind-template ng:bind-template} - Replaces text value of an element
* with a specified template.
* * {@link angular.directive.ng:change ng:change} - Executes an expression when the value of an
* input widget changes.
* * {@link angular.directive.ng:class ng:class} - Conditionally set CSS class on an element.
* * {@link angular.directive.ng:class-even ng:class-even} - Like `ng:class`, but works in
* conjunction with {@link angular.widget.@ng:repeat} to affect even rows in a collection.
* * {@link angular.directive.ng:class-odd ng:class-odd} - Like `ng:class`, but works with {@link
* angular.widget.@ng:repeat} to affect odd rows.
* * {@link angular.directive.ng:click ng:click} - Executes custom behavior when element is clicked.
* * {@link angular.directive.ng:controller ng:controller} - Creates a scope object linked to the
* DOM element and assigns behavior to the scope.
* * {@link angular.directive.ng:eval ng:eval} - Executes a binding but blocks output.
* * {@link angular.directive.ng:eval-order ng:eval-order} - Change evaluation order when updating
* the view.
* * {@link angular.directive.ng:hide ng:hide} - Conditionally hides a portion of HTML.
* * {@link angular.directive.ng:href ng:href} - Places an href in the angular namespace.
* * {@link angular.directive.ng:init} - Initialization tasks run before a template is executed.
* * {@link angular.directive.ng:show ng:show} - Conditionally displays a portion of HTML.
* * {@link angular.directive.ng:src ng:src} - Places a `src` attribute into the angular namespace.
* * {@link angular.directive.ng:style ng:style} - Conditionally set CSS styles on an element.
* * {@link angular.directive.ng:submit} - Binds angular expressions to `onSubmit` events.
*
* For more information about how angular directives work, and how to create your own directives,
* see {@link guide/dev_guide.compiler.directives Understanding Angular Directives} in the angular
* Developer Guide.
*/
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:init
*
* @description
* The `ng:init` attribute specifies initialization tasks to be executed
* before the template enters execution mode during bootstrap.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval.
*
* @example
<doc:example>
<doc:source>
<div ng:init="greeting='Hello'; person='World'">
{{greeting}} {{person}}!
</div>
</doc:source>
<doc:scenario>
it('should check greeting', function(){
expect(binding('greeting')).toBe('Hello');
expect(binding('person')).toBe('World');
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:init", function(expression){
return function(element){
this.$tryEval(expression, element);
};
});
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:controller
*
* @description
* The `ng:controller` directive assigns behavior to a scope. This is a key aspect of how angular
* supports the principles behind the Model-View-Controller design pattern.
*
* MVC components in angular:
*
* * Model — The Model is data in scope properties; scopes are attached to the DOM.
* * View — The template (HTML with data bindings) is rendered into the View.
* * Controller — The `ng:controller` directive specifies a Controller class; the class has
* methods that typically express the business logic behind the application.
*
* Note that an alternative way to define controllers is via the `{@link angular.service.$route}`
* service.
*
* @element ANY
* @param {expression} expression Name of a globally accessible constructor function or an
* {@link guide/dev_guide.expressions expression} that on the current scope evaluates to a
* constructor function.
*
* @example
* Here is a simple form for editing user contact information. Adding, removing, clearing, and
* greeting are methods declared on the controller (see source tab). These methods can
* easily be called from the angular markup. Notice that the scope becomes the `this` for the
* controller's instance. This allows for easy access to the view data from the controller. Also
* notice that any changes to the data are automatically reflected in the View without the need
* for a manual update.
<doc:example>
<doc:source>
<script type="text/javascript">
function SettingsController() {
this.name = "John Smith";
this.contacts = [
{type:'phone', value:'408 555 1212'},
{type:'email', value:'john.smith@example.org'} ];
}
SettingsController.prototype = {
greet: function(){
alert(this.name);
},
addContact: function(){
this.contacts.push({type:'email', value:'yourname@example.org'});
},
removeContact: function(contactToRemove) {
angular.Array.remove(this.contacts, contactToRemove);
},
clearContact: function(contact) {
contact.type = 'phone';
contact.value = '';
}
};
</script>
<div ng:controller="SettingsController">
Name: <input type="text" name="name"/>
[ <a href="" ng:click="greet()">greet</a> ]<br/>
Contact:
<ul>
<li ng:repeat="contact in contacts">
<select name="contact.type">
<option>phone</option>
<option>email</option>
</select>
<input type="text" name="contact.value"/>
[ <a href="" ng:click="clearContact(contact)">clear</a>
| <a href="" ng:click="removeContact(contact)">X</a> ]
</li>
<li>[ <a href="" ng:click="addContact()">add</a> ]</li>
</ul>
</div>
</doc:source>
<doc:scenario>
it('should check controller', function(){
expect(element('.doc-example-live div>:input').val()).toBe('John Smith');
expect(element('.doc-example-live li[ng\\:repeat-index="0"] input').val()).toBe('408 555 1212');
expect(element('.doc-example-live li[ng\\:repeat-index="1"] input').val()).toBe('john.smith@example.org');
element('.doc-example-live li:first a:contains("clear")').click();
expect(element('.doc-example-live li:first input').val()).toBe('');
element('.doc-example-live li:last a:contains("add")').click();
expect(element('.doc-example-live li[ng\\:repeat-index="2"] input').val()).toBe('yourname@example.org');
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:controller", function(expression){
this.scope(true);
return function(element){
var controller = getter(window, expression, true) || getter(this, expression, true);
if (!controller)
throw "Can not find '"+expression+"' controller.";
if (!isFunction(controller))
throw "Reference '"+expression+"' is not a class.";
this.$become(controller);
};
});
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:eval
*
* @description
* The `ng:eval` allows you to execute a binding which has side effects
* without displaying the result to the user.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval.
*
* @example
* Notice that `{{` `obj.multiplied = obj.a * obj.b` `}}` has a side effect of assigning
* a value to `obj.multiplied` and displaying the result to the user. Sometimes,
* however, it is desirable to execute a side effect without showing the value to
* the user. In such a case `ng:eval` allows you to execute code without updating
* the display.
<doc:example>
<doc:source>
<input name="obj.a" value="6" >
* <input name="obj.b" value="2">
= {{obj.multiplied = obj.a * obj.b}} <br>
<span ng:eval="obj.divide = obj.a / obj.b"></span>
<span ng:eval="obj.updateCount = 1 + (obj.updateCount||0)">
</span>
<tt>obj.divide = {{obj.divide}}</tt><br>
<tt>obj.updateCount = {{obj.updateCount}}</tt>
</doc:source>
<doc:scenario>
it('should check eval', function(){
expect(binding('obj.divide')).toBe('3');
expect(binding('obj.updateCount')).toBe('2');
input('obj.a').enter('12');
expect(binding('obj.divide')).toBe('6');
expect(binding('obj.updateCount')).toBe('3');
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:eval", function(expression){
return function(element){
this.$onEval(expression, element);
};
});
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:bind
*
* @description
* The `ng:bind` attribute asks angular to replace the text content of this
* HTML element with the value of the given expression, and to keep the text
* content up to date when the expression's value changes. Usually you would
* just write `{{ expression }}` and let angular compile it into
* `<span ng:bind="expression"></span>` at bootstrap time.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval.
*
* @example
* You can try it right here: enter text in the text box and watch the greeting change.
<doc:example>
<doc:source>
Enter name: <input type="text" name="name" value="Whirled"> <br>
Hello <span ng:bind="name" />!
</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>
*/
angularDirective("ng:bind", function(expression, element){
element.addClass('ng-binding');
return function(element) {
var lastValue = noop, lastError = noop;
this.$onEval(function() {
var error, value, html, isHtml, isDomElement,
oldElement = this.hasOwnProperty($$element) ? this.$element : undefined;
this.$element = element;
value = this.$tryEval(expression, function(e){
error = formatError(e);
});
this.$element = oldElement;
// If we are HTML then save the raw HTML data so that we don't
// recompute sanitization since it is expensive.
// TODO: turn this into a more generic way to compute this
if (isHtml = (value instanceof HTML))
value = (html = value).html;
if (lastValue === value && lastError == error) return;
isDomElement = isElement(value);
if (!isHtml && !isDomElement && isObject(value)) {
value = toJson(value, true);
}
if (value != lastValue || error != lastError) {
lastValue = value;
lastError = error;
elementError(element, NG_EXCEPTION, error);
if (error) value = error;
if (isHtml) {
element.html(html.get());
} else if (isDomElement) {
element.html('');
element.append(value);
} else {
element.text(value == undefined ? '' : value);
}
}
}, element);
};
});
var bindTemplateCache = {};
function compileBindTemplate(template){
var fn = bindTemplateCache[template];
if (!fn) {
var bindings = [];
forEach(parseBindings(template), function(text){
var exp = binding(text);
bindings.push(exp
? function(element){
var error, value = this.$tryEval(exp, function(e){
error = toJson(e);
});
elementError(element, NG_EXCEPTION, error);
return error ? error : value;
}
: function() {
return text;
});
});
bindTemplateCache[template] = fn = function(element, prettyPrintJson){
var parts = [], self = this,
oldElement = this.hasOwnProperty($$element) ? self.$element : undefined;
self.$element = element;
for ( var i = 0; i < bindings.length; i++) {
var value = bindings[i].call(self, element);
if (isElement(value))
value = '';
else if (isObject(value))
value = toJson(value, prettyPrintJson);
parts.push(value);
}
self.$element = oldElement;
return parts.join('');
};
}
return fn;
}
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:bind-template
*
* @description
* The `ng:bind-template` attribute specifies that the element
* text should be replaced with the template in ng:bind-template.
* Unlike ng:bind the ng:bind-template can contain multiple `{{` `}}`
* expressions. (This is required since some HTML elements
* can not have SPAN elements such as TITLE, or OPTION to name a few.)
*
* @element ANY
* @param {string} template of form
* <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.
*
* @example
* Try it here: enter text in text box and watch the greeting change.
<doc:example>
<doc:source>
Salutation: <input type="text" name="salutation" value="Hello"><br/>
Name: <input type="text" name="name" value="World"><br/>
<pre ng:bind-template="{{salutation}} {{name}}!"></pre>
</doc:source>
<doc:scenario>
it('should check ng:bind', function(){
expect(using('.doc-example-live').binding('{{salutation}} {{name}}')).
toBe('Hello World!');
using('.doc-example-live').input('salutation').enter('Greetings');
using('.doc-example-live').input('name').enter('user');
expect(using('.doc-example-live').binding('{{salutation}} {{name}}')).
toBe('Greetings user!');
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:bind-template", function(expression, element){
element.addClass('ng-binding');
var templateFn = compileBindTemplate(expression);
return function(element) {
var lastValue;
this.$onEval(function() {
var value = templateFn.call(this, element, true);
if (value != lastValue) {
element.text(value);
lastValue = value;
}
}, element);
};
});
var REMOVE_ATTRIBUTES = {
'disabled':'disabled',
'readonly':'readOnly',
'checked':'checked',
'selected':'selected',
'multiple':'multiple'
};
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:bind-attr
*
* @description
* The `ng:bind-attr` attribute specifies that
* {@link guide/dev_guide.templates.databinding databindings} should be created between element
* attributes and given expressions. Unlike `ng:bind` the `ng:bind-attr` contains a JSON key value
* pairs representing which attributes need to be mapped to which
* {@link guide/dev_guide.expressions expressions}.
*
* You don't usually write the `ng:bind-attr` in the HTML since embedding
* <tt ng:non-bindable>{{expression}}</tt> into the attribute directly as the attribute value is
* preferred. The attributes get translated into `<span ng:bind-attr="{attr:expression}"/>` at
* compile time.
*
* This HTML snippet is preferred way of working with `ng:bind-attr`
* <pre>
* <a href="http://www.google.com/search?q={{query}}">Google</a>
* </pre>
*
* The above gets translated to bellow during bootstrap time.
* <pre>
* <a ng:bind-attr='{"href":"http://www.google.com/search?q={{query}}"}'>Google</a>
* </pre>
*
* @element ANY
* @param {string} attribute_json a JSON key-value pairs representing
* the attributes to replace. Each key matches the attribute
* which needs to be replaced. Each value is a text template of
* the attribute with embedded
* <tt ng:non-bindable>{{expression}}</tt>s. Any number of
* key-value pairs can be specified.
*
* @example
* Try it here: enter text in text box and click Google.
<doc:example>
<doc:source>
Google for:
<input type="text" name="query" value="AngularJS"/>
<a href="http://www.google.com/search?q={{query}}">Google</a>
</doc:source>
<doc:scenario>
it('should check ng:bind-attr', function(){
expect(using('.doc-example-live').element('a').attr('href')).
toBe('http://www.google.com/search?q=AngularJS');
using('.doc-example-live').input('query').enter('google');
expect(using('.doc-example-live').element('a').attr('href')).
toBe('http://www.google.com/search?q=google');
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:bind-attr", function(expression){
return function(element){
var lastValue = {};
this.$onEval(function(){
var values = this.$eval(expression);
for(var key in values) {
var value = compileBindTemplate(values[key]).call(this, element),
specialName = REMOVE_ATTRIBUTES[lowercase(key)];
if (lastValue[key] !== value) {
lastValue[key] = value;
if (specialName) {
if (toBoolean(value)) {
element.attr(specialName, specialName);
element.attr('ng-' + specialName, value);
} else {
element.removeAttr(specialName);
element.removeAttr('ng-' + specialName);
}
(element.data($$validate)||noop)();
} else {
element.attr(key, value);
}
}
}
}, element);
};
});
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:click
*
* @description
* The ng:click allows you to specify custom behavior when
* element is clicked.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval upon click.
*
* @example
<doc:example>
<doc:source>
<button ng:click="count = count + 1" ng:init="count=0">
Increment
</button>
count: {{count}}
</doc:source>
<doc:scenario>
it('should check ng:click', function(){
expect(binding('count')).toBe('0');
element('.doc-example-live :button').click();
expect(binding('count')).toBe('1');
});
</doc:scenario>
</doc:example>
*/
/*
* A directive that allows creation of custom onclick handlers that are defined as angular
* expressions and are compiled and executed within the current scope.
*
* Events that are handled via these handler are always configured not to propagate further.
*
* TODO: maybe we should consider allowing users to control event propagation in the future.
*/
angularDirective("ng:click", function(expression, element){
return annotate('$updateView', function($updateView, element){
var self = this;
element.bind('click', function(event){
self.$tryEval(expression, element);
$updateView();
event.stopPropagation();
});
});
});
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:submit
*
* @description
* Enables binding angular expressions to onsubmit events.
*
* Additionally it prevents the default action (which for form means sending the request to the
* server and reloading the current page).
*
* @element form
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval.
*
* @example
<doc:example>
<doc:source>
<form ng:submit="list.push(text);text='';" ng:init="list=[]">
Enter text and hit enter:
<input type="text" name="text" value="hello"/>
<input type="submit" id="submit" value="Submit" />
</form>
<pre>list={{list}}</pre>
</doc:source>
<doc:scenario>
it('should check ng:submit', function(){
expect(binding('list')).toBe('list=[]');
element('.doc-example-live #submit').click();
expect(binding('list')).toBe('list=["hello"]');
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:submit", function(expression, element) {
return annotate('$updateView', function($updateView, element) {
var self = this;
element.bind('submit', function(event) {
self.$tryEval(expression, element);
$updateView();
event.preventDefault();
});
});
});
function ngClass(selector) {
return function(expression, element){
var existing = element[0].className + ' ';
return function(element){
this.$onEval(function(){
var scope = this;
if (selector(scope.$index)) {
var ngClassVal = scope.$eval(element.attr('ng:class') || '');
if (isArray(ngClassVal)) ngClassVal = ngClassVal.join(' ');
var value = scope.$eval(expression);
if (isArray(value)) value = value.join(' ');
if (ngClassVal && ngClassVal !== value) value = value + ' ' + ngClassVal;
element[0].className = trim(existing + value);
}
}, element);
};
};
}
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:class
*
* @description
* The `ng:class` allows you to set CSS class on HTML element
* conditionally.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval.
*
* @example
<doc:example>
<doc:source>
<input type="button" value="set" ng:click="myVar='ng-input-indicator-wait'">
<input type="button" value="clear" ng:click="myVar=''">
<br>
<span ng:class="myVar">Sample Text </span>
</doc:source>
<doc:scenario>
it('should check ng:class', function(){
expect(element('.doc-example-live span').attr('className')).not().
toMatch(/ng-input-indicator-wait/);
using('.doc-example-live').element(':button:first').click();
expect(element('.doc-example-live span').attr('className')).
toMatch(/ng-input-indicator-wait/);
using('.doc-example-live').element(':button:last').click();
expect(element('.doc-example-live span').attr('className')).not().
toMatch(/ng-input-indicator-wait/);
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:class", ngClass(function(){return true;}));
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:class-odd
*
* @description
* The `ng:class-odd` and `ng:class-even` works exactly as
* `ng:class`, except it works in conjunction with `ng:repeat`
* and takes affect only on odd (even) rows.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval. Must be
* inside `ng:repeat`.
*
* @example
<doc:example>
<doc:source>
<ol ng:init="names=['John', 'Mary', 'Cate', 'Suz']">
<li ng:repeat="name in names">
<span ng:class-odd="'ng-format-negative'"
ng:class-even="'ng-input-indicator-wait'">
{{name}}
</span>
</li>
</ol>
</doc:source>
<doc:scenario>
it('should check ng:class-odd and ng:class-even', function(){
expect(element('.doc-example-live li:first span').attr('className')).
toMatch(/ng-format-negative/);
expect(element('.doc-example-live li:last span').attr('className')).
toMatch(/ng-input-indicator-wait/);
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:class-odd", ngClass(function(i){return i % 2 === 0;}));
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:class-even
*
* @description
* The `ng:class-odd` and `ng:class-even` works exactly as
* `ng:class`, except it works in conjunction with `ng:repeat`
* and takes affect only on odd (even) rows.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} to eval. Must be
* inside `ng:repeat`.
*
* @example
<doc:example>
<doc:source>
<ol ng:init="names=['John', 'Mary', 'Cate', 'Suz']">
<li ng:repeat="name in names">
<span ng:class-odd="'ng-format-negative'"
ng:class-even="'ng-input-indicator-wait'">
{{name}}
</span>
</li>
</ol>
</doc:source>
<doc:scenario>
it('should check ng:class-odd and ng:class-even', function(){
expect(element('.doc-example-live li:first span').attr('className')).
toMatch(/ng-format-negative/);
expect(element('.doc-example-live li:last span').attr('className')).
toMatch(/ng-input-indicator-wait/);
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:class-even", ngClass(function(i){return i % 2 === 1;}));
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:show
*
* @description
* The `ng:show` and `ng:hide` directives show or hide a portion of the DOM tree (HTML)
* conditionally.
*
* @element ANY
* @param {expression} expression If the {@link guide/dev_guide.expressions expression} is truthy
* then the element is shown or hidden respectively.
*
* @example
<doc:example>
<doc:source>
Click me: <input type="checkbox" name="checked"><br/>
Show: <span ng:show="checked">I show up when your checkbox is checked.</span> <br/>
Hide: <span ng:hide="checked">I hide when your checkbox is checked.</span>
</doc:source>
<doc:scenario>
it('should check ng:show / ng:hide', function(){
expect(element('.doc-example-live span:first:hidden').count()).toEqual(1);
expect(element('.doc-example-live span:last:visible').count()).toEqual(1);
input('checked').check();
expect(element('.doc-example-live span:first:visible').count()).toEqual(1);
expect(element('.doc-example-live span:last:hidden').count()).toEqual(1);
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:show", function(expression, element){
return function(element){
this.$onEval(function(){
element.css('display', toBoolean(this.$eval(expression)) ? '' : 'none');
}, element);
};
});
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:hide
*
* @description
* The `ng:hide` and `ng:show` directives hide or show a portion
* of the HTML conditionally.
*
* @element ANY
* @param {expression} expression If the {@link guide/dev_guide.expressions expression} truthy then
* the element is shown or hidden respectively.
*
* @example
<doc:example>
<doc:source>
Click me: <input type="checkbox" name="checked"><br/>
Show: <span ng:show="checked">I show up when you checkbox is checked?</span> <br/>
Hide: <span ng:hide="checked">I hide when you checkbox is checked?</span>
</doc:source>
<doc:scenario>
it('should check ng:show / ng:hide', function(){
expect(element('.doc-example-live span:first:hidden').count()).toEqual(1);
expect(element('.doc-example-live span:last:visible').count()).toEqual(1);
input('checked').check();
expect(element('.doc-example-live span:first:visible').count()).toEqual(1);
expect(element('.doc-example-live span:last:hidden').count()).toEqual(1);
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:hide", function(expression, element){
return function(element){
this.$onEval(function(){
element.css('display', toBoolean(this.$eval(expression)) ? 'none' : '');
}, element);
};
});
/**
* @workInProgress
* @ngdoc directive
* @name angular.directive.ng:style
*
* @description
* The ng:style allows you to set CSS style on an HTML element conditionally.
*
* @element ANY
* @param {expression} expression {@link guide/dev_guide.expressions Expression} which evals to an
* object whose keys are CSS style names and values are corresponding values for those CSS
* keys.
*
* @example
<doc:example>
<doc:source>
<input type="button" value="set" ng:click="myStyle={color:'red'}">
<input type="button" value="clear" ng:click="myStyle={}">
<br/>
<span ng:style="myStyle">Sample Text</span>
<pre>myStyle={{myStyle}}</pre>
</doc:source>
<doc:scenario>
it('should check ng:style', function(){
expect(element('.doc-example-live span').css('color')).toBe('rgb(0, 0, 0)');
element('.doc-example-live :button[value=set]').click();
expect(element('.doc-example-live span').css('color')).toBe('red');
element('.doc-example-live :button[value=clear]').click();
expect(element('.doc-example-live span').css('color')).toBe('rgb(0, 0, 0)');
});
</doc:scenario>
</doc:example>
*/
angularDirective("ng:style", function(expression, element){
return function(element){
var resetStyle = getStyle(element);
this.$onEval(function(){
var style = this.$eval(expression) || {}, key, mergedStyle = {};
for(key in style) {
if (resetStyle[key] === undefined) resetStyle[key] = '';
mergedStyle[key] = style[key];
}
for(key in resetStyle) {
mergedStyle[key] = mergedStyle[key] || resetStyle[key];
}
element.css(mergedStyle);
}, element);
};
});