/src/ng/compile.js
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- 'use strict';
- /* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!
- *
- * DOM-related variables:
- *
- * - "node" - DOM Node
- * - "element" - DOM Element or Node
- * - "$node" or "$element" - jqLite-wrapped node or element
- *
- *
- * Compiler related stuff:
- *
- * - "linkFn" - linking fn of a single directive
- * - "nodeLinkFn" - function that aggregates all linking fns for a particular node
- * - "childLinkFn" - function that aggregates all linking fns for child nodes of a particular node
- * - "compositeLinkFn" - function that aggregates all linking fns for a compilation root (nodeList)
- */
- /**
- * @ngdoc service
- * @name $compile
- * @kind function
- *
- * @description
- * Compiles an HTML string or DOM into a template and produces a template function, which
- * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.
- *
- * The compilation is a process of walking the DOM tree and matching DOM elements to
- * {@link ng.$compileProvider#directive directives}.
- *
- * <div class="alert alert-warning">
- * **Note:** This document is an in-depth reference of all directive options.
- * For a gentle introduction to directives with examples of common use cases,
- * see the {@link guide/directive directive guide}.
- * </div>
- *
- * ## Comprehensive Directive API
- *
- * There are many different options for a directive.
- *
- * The difference resides in the return value of the factory function.
- * You can either return a "Directive Definition Object" (see below) that defines the directive properties,
- * or just the `postLink` function (all other properties will have the default values).
- *
- * <div class="alert alert-success">
- * **Best Practice:** It's recommended to use the "directive definition object" form.
- * </div>
- *
- * Here's an example directive declared with a Directive Definition Object:
- *
- * ```js
- * var myModule = angular.module(...);
- *
- * myModule.directive('directiveName', function factory(injectables) {
- * var directiveDefinitionObject = {
- * priority: 0,
- * template: '<div></div>', // or // function(tElement, tAttrs) { ... },
- * // or
- * // templateUrl: 'directive.html', // or // function(tElement, tAttrs) { ... },
- * transclude: false,
- * restrict: 'A',
- * templateNamespace: 'html',
- * scope: false,
- * controller: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },
- * controllerAs: 'stringAlias',
- * require: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],
- * compile: function compile(tElement, tAttrs, transclude) {
- * return {
- * pre: function preLink(scope, iElement, iAttrs, controller) { ... },
- * post: function postLink(scope, iElement, iAttrs, controller) { ... }
- * }
- * // or
- * // return function postLink( ... ) { ... }
- * },
- * // or
- * // link: {
- * // pre: function preLink(scope, iElement, iAttrs, controller) { ... },
- * // post: function postLink(scope, iElement, iAttrs, controller) { ... }
- * // }
- * // or
- * // link: function postLink( ... ) { ... }
- * };
- * return directiveDefinitionObject;
- * });
- * ```
- *
- * <div class="alert alert-warning">
- * **Note:** Any unspecified options will use the default value. You can see the default values below.
- * </div>
- *
- * Therefore the above can be simplified as:
- *
- * ```js
- * var myModule = angular.module(...);
- *
- * myModule.directive('directiveName', function factory(injectables) {
- * var directiveDefinitionObject = {
- * link: function postLink(scope, iElement, iAttrs) { ... }
- * };
- * return directiveDefinitionObject;
- * // or
- * // return function postLink(scope, iElement, iAttrs) { ... }
- * });
- * ```
- *
- *
- *
- * ### Directive Definition Object
- *
- * The directive definition object provides instructions to the {@link ng.$compile
- * compiler}. The attributes are:
- *
- * #### `multiElement`
- * When this property is set to true, the HTML compiler will collect DOM nodes between
- * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them
- * together as the directive elements. It is recomended that this feature be used on directives
- * which are not strictly behavioural (such as {@link ngClick}), and which
- * do not manipulate or replace child nodes (such as {@link ngInclude}).
- *
- * #### `priority`
- * When there are multiple directives defined on a single DOM element, sometimes it
- * is necessary to specify the order in which the directives are applied. The `priority` is used
- * to sort the directives before their `compile` functions get called. Priority is defined as a
- * number. Directives with greater numerical `priority` are compiled first. Pre-link functions
- * are also run in priority order, but post-link functions are run in reverse order. The order
- * of directives with the same priority is undefined. The default priority is `0`.
- *
- * #### `terminal`
- * If set to true then the current `priority` will be the last set of directives
- * which will execute (any directives at the current priority will still execute
- * as the order of execution on same `priority` is undefined). Note that expressions
- * and other directives used in the directive's template will also be excluded from execution.
- *
- * #### `scope`
- * **If set to `true`,** then a new scope will be created for this directive. If multiple directives on the
- * same element request a new scope, only one new scope is created. The new scope rule does not
- * apply for the root of the template since the root of the template always gets a new scope.
- *
- * **If set to `{}` (object hash),** then a new "isolate" scope is created. The 'isolate' scope differs from
- * normal scope in that it does not prototypically inherit from the parent scope. This is useful
- * when creating reusable components, which should not accidentally read or modify data in the
- * parent scope.
- *
- * The 'isolate' scope takes an object hash which defines a set of local scope properties
- * derived from the parent scope. These local properties are useful for aliasing values for
- * templates. Locals definition is a hash of local scope property to its source:
- *
- * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is
- * always a string since DOM attributes are strings. If no `attr` name is specified then the
- * attribute name is assumed to be the same as the local name.
- * Given `<widget my-attr="hello {{name}}">` and widget definition
- * of `scope: { localName:'@myAttr' }`, then widget scope property `localName` will reflect
- * the interpolated value of `hello {{name}}`. As the `name` attribute changes so will the
- * `localName` property on the widget scope. The `name` is read from the parent scope (not
- * component scope).
- *
- * * `=` or `=attr` - set up bi-directional binding between a local scope property and the
- * parent scope property of name defined via the value of the `attr` attribute. If no `attr`
- * name is specified then the attribute name is assumed to be the same as the local name.
- * Given `<widget my-attr="parentModel">` and widget definition of
- * `scope: { localModel:'=myAttr' }`, then widget scope property `localModel` will reflect the
- * value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected
- * in `localModel` and any changes in `localModel` will reflect in `parentModel`. If the parent
- * scope property doesn't exist, it will throw a NON_ASSIGNABLE_MODEL_EXPRESSION exception. You
- * can avoid this behavior using `=?` or `=?attr` in order to flag the property as optional. If
- * you want to shallow watch for changes (i.e. $watchCollection instead of $watch) you can use
- * `=*` or `=*attr` (`=*?` or `=*?attr` if the property is optional).
- *
- * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope.
- * If no `attr` name is specified then the attribute name is assumed to be the same as the
- * local name. Given `<widget my-attr="count = count + value">` and widget definition of
- * `scope: { localFn:'&myAttr' }`, then isolate scope property `localFn` will point to
- * a function wrapper for the `count = count + value` expression. Often it's desirable to
- * pass data from the isolated scope via an expression to the parent scope, this can be
- * done by passing a map of local variable names and values into the expression wrapper fn.
- * For example, if the expression is `increment(amount)` then we can specify the amount value
- * by calling the `localFn` as `localFn({amount: 22})`.
- *
- *
- * #### `bindToController`
- * When an isolate scope is used for a component (see above), and `controllerAs` is used, `bindToController` will
- * allow a component to have its properties bound to the controller, rather than to scope. When the controller
- * is instantiated, the initial values of the isolate scope bindings are already available.
- *
- * #### `controller`
- * Controller constructor function. The controller is instantiated before the
- * pre-linking phase and it is shared with other directives (see
- * `require` attribute). This allows the directives to communicate with each other and augment
- * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:
- *
- * * `$scope` - Current scope associated with the element
- * * `$element` - Current element
- * * `$attrs` - Current attributes object for the element
- * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:
- * `function([scope], cloneLinkingFn, futureParentElement)`.
- * * `scope`: optional argument to override the scope.
- * * `cloneLinkingFn`: optional argument to create clones of the original transcluded content.
- * * `futureParentElement`:
- * * defines the parent to which the `cloneLinkingFn` will add the cloned elements.
- * * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.
- * * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)
- * and when the `cloneLinkinFn` is passed,
- * as those elements need to created and cloned in a special way when they are defined outside their
- * usual containers (e.g. like `<svg>`).
- * * See also the `directive.templateNamespace` property.
- *
- *
- * #### `require`
- * Require another directive and inject its controller as the fourth argument to the linking function. The
- * `require` takes a string name (or array of strings) of the directive(s) to pass in. If an array is used, the
- * injected argument will be an array in corresponding order. If no such directive can be
- * found, or if the directive does not have a controller, then an error is raised. The name can be prefixed with:
- *
- * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.
- * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.
- * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.
- * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.
- * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass
- * `null` to the `link` fn if not found.
- * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass
- * `null` to the `link` fn if not found.
- *
- *
- * #### `controllerAs`
- * Controller alias at the directive scope. An alias for the controller so it
- * can be referenced at the directive template. The directive needs to define a scope for this
- * configuration to be used. Useful in the case when directive is used as component.
- *
- *
- * #### `restrict`
- * String of subset of `EACM` which restricts the directive to a specific directive
- * declaration style. If omitted, the defaults (elements and attributes) are used.
- *
- * * `E` - Element name (default): `<my-directive></my-directive>`
- * * `A` - Attribute (default): `<div my-directive="exp"></div>`
- * * `C` - Class: `<div class="my-directive: exp;"></div>`
- * * `M` - Comment: `<!-- directive: my-directive exp -->`
- *
- *
- * #### `templateNamespace`
- * String representing the document type used by the markup in the template.
- * AngularJS needs this information as those elements need to be created and cloned
- * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.
- *
- * * `html` - All root nodes in the template are HTML. Root nodes may also be
- * top-level elements such as `<svg>` or `<math>`.
- * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).
- * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).
- *
- * If no `templateNamespace` is specified, then the namespace is considered to be `html`.
- *
- * #### `template`
- * HTML markup that may:
- * * Replace the contents of the directive's element (default).
- * * Replace the directive's element itself (if `replace` is true - DEPRECATED).
- * * Wrap the contents of the directive's element (if `transclude` is true).
- *
- * Value may be:
- *
- * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.
- * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`
- * function api below) and returns a string value.
- *
- *
- * #### `templateUrl`
- * This is similar to `template` but the template is loaded from the specified URL, asynchronously.
- *
- * Because template loading is asynchronous the compiler will suspend compilation of directives on that element
- * for later when the template has been resolved. In the meantime it will continue to compile and link
- * sibling and parent elements as though this element had not contained any directives.
- *
- * The compiler does not suspend the entire compilation to wait for templates to be loaded because this
- * would result in the whole app "stalling" until all templates are loaded asynchronously - even in the
- * case when only one deeply nested directive has `templateUrl`.
- *
- * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}
- *
- * You can specify `templateUrl` as a string representing the URL or as a function which takes two
- * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns
- * a string value representing the url. In either case, the template URL is passed through {@link
- * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.
- *
- *
- * #### `replace` ([*DEPRECATED*!], will be removed in next major release - i.e. v2.0)
- * specify what the template should replace. Defaults to `false`.
- *
- * * `true` - the template will replace the directive's element.
- * * `false` - the template will replace the contents of the directive's element.
- *
- * The replacement process migrates all of the attributes / classes from the old element to the new
- * one. See the {@link guide/directive#template-expanding-directive
- * Directives Guide} for an example.
- *
- * There are very few scenarios where element replacement is required for the application function,
- * the main one being reusable custom components that are used within SVG contexts
- * (because SVG doesn't work with custom elements in the DOM tree).
- *
- * #### `transclude`
- * Extract the contents of the element where the directive appears and make it available to the directive.
- * The contents are compiled and provided to the directive as a **transclusion function**. See the
- * {@link $compile#transclusion Transclusion} section below.
- *
- * There are two kinds of transclusion depending upon whether you want to transclude just the contents of the
- * directive's element or the entire element:
- *
- * * `true` - transclude the content (i.e. the child nodes) of the directive's element.
- * * `'element'` - transclude the whole of the directive's element including any directives on this
- * element that defined at a lower priority than this directive. When used, the `template`
- * property is ignored.
- *
- *
- * #### `compile`
- *
- * ```js
- * function compile(tElement, tAttrs, transclude) { ... }
- * ```
- *
- * The compile function deals with transforming the template DOM. Since most directives do not do
- * template transformation, it is not used often. The compile function takes the following arguments:
- *
- * * `tElement` - template element - The element where the directive has been declared. It is
- * safe to do template transformation on the element and child elements only.
- *
- * * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared
- * between all directive compile functions.
- *
- * * `transclude` - [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`
- *
- * <div class="alert alert-warning">
- * **Note:** The template instance and the link instance may be different objects if the template has
- * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that
- * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration
- * should be done in a linking function rather than in a compile function.
- * </div>
- * <div class="alert alert-warning">
- * **Note:** The compile function cannot handle directives that recursively use themselves in their
- * own templates or compile functions. Compiling these directives results in an infinite loop and a
- * stack overflow errors.
- *
- * This can be avoided by manually using $compile in the postLink function to imperatively compile
- * a directive's template instead of relying on automatic template compilation via `template` or
- * `templateUrl` declaration or manual compilation inside the compile function.
- * </div>
- *
- * <div class="alert alert-error">
- * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it
- * e.g. does not know about the right outer scope. Please use the transclude function that is passed
- * to the link function instead.
- * </div>
- * A compile function can have a return value which can be either a function or an object.
- *
- * * returning a (post-link) function - is equivalent to registering the linking function via the
- * `link` property of the config object when the compile function is empty.
- *
- * * returning an object with function(s) registered via `pre` and `post` properties - allows you to
- * control when a linking function should be called during the linking phase. See info about
- * pre-linking and post-linking functions below.
- *
- *
- * #### `link`
- * This property is used only if the `compile` property is not defined.
- *
- * ```js
- * function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }
- * ```
- *
- * The link function is responsible for registering DOM listeners as well as updating the DOM. It is
- * executed after the template has been cloned. This is where most of the directive logic will be
- * put.
- *
- * * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the
- * directive for registering {@link ng.$rootScope.Scope#$watch watches}.
- *
- * * `iElement` - instance element - The element where the directive is to be used. It is safe to
- * manipulate the children of the element only in `postLink` function since the children have
- * already been linked.
- *
- * * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared
- * between all directive linking functions.
- *
- * * `controller` - a controller instance - A controller instance if at least one directive on the
- * element defines a controller. The controller is shared among all the directives, which allows
- * the directives to use the controllers as a communication channel.
- *
- * * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.
- * This is the same as the `$transclude`
- * parameter of directive controllers, see there for details.
- * `function([scope], cloneLinkingFn, futureParentElement)`.
- *
- * #### Pre-linking function
- *
- * Executed before the child elements are linked. Not safe to do DOM transformation since the
- * compiler linking function will fail to locate the correct elements for linking.
- *
- * #### Post-linking function
- *
- * Executed after the child elements are linked.
- *
- * Note that child elements that contain `templateUrl` directives will not have been compiled
- * and linked since they are waiting for their template to load asynchronously and their own
- * compilation and linking has been suspended until that occurs.
- *
- * It is safe to do DOM transformation in the post-linking function on elements that are not waiting
- * for their async templates to be resolved.
- *
- *
- * ### Transclusion
- *
- * Transclusion is the process of extracting a collection of DOM element from one part of the DOM and
- * copying them to another part of the DOM, while maintaining their connection to the original AngularJS
- * scope from where they were taken.
- *
- * Transclusion is used (often with {@link ngTransclude}) to insert the
- * original contents of a directive's element into a specified place in the template of the directive.
- * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded
- * content has access to the properties on the scope from which it was taken, even if the directive
- * has isolated scope.
- * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.
- *
- * This makes it possible for the widget to have private state for its template, while the transcluded
- * content has access to its originating scope.
- *
- * <div class="alert alert-warning">
- * **Note:** When testing an element transclude directive you must not place the directive at the root of the
- * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives
- * Testing Transclusion Directives}.
- * </div>
- *
- * #### Transclusion Functions
- *
- * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion
- * function** to the directive's `link` function and `controller`. This transclusion function is a special
- * **linking function** that will return the compiled contents linked to a new transclusion scope.
- *
- * <div class="alert alert-info">
- * If you are just using {@link ngTransclude} then you don't need to worry about this function, since
- * ngTransclude will deal with it for us.
- * </div>
- *
- * If you want to manually control the insertion and removal of the transcluded content in your directive
- * then you must use this transclude function. When you call a transclude function it returns a a jqLite/JQuery
- * object that contains the compiled DOM, which is linked to the correct transclusion scope.
- *
- * When you call a transclusion function you can pass in a **clone attach function**. This function accepts
- * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded
- * content and the `scope` is the newly created transclusion scope, to which the clone is bound.
- *
- * <div class="alert alert-info">
- * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a translude function
- * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.
- * </div>
- *
- * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone
- * attach function**:
- *
- * ```js
- * var transcludedContent, transclusionScope;
- *
- * $transclude(function(clone, scope) {
- * element.append(clone);
- * transcludedContent = clone;
- * transclusionScope = scope;
- * });
- * ```
- *
- * Later, if you want to remove the transcluded content from your DOM then you should also destroy the
- * associated transclusion scope:
- *
- * ```js
- * transcludedContent.remove();
- * transclusionScope.$destroy();
- * ```
- *
- * <div class="alert alert-info">
- * **Best Practice**: if you intend to add and remove transcluded content manually in your directive
- * (by calling the transclude function to get the DOM and and calling `element.remove()` to remove it),
- * then you are also responsible for calling `$destroy` on the transclusion scope.
- * </div>
- *
- * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}
- * automatically destroy their transluded clones as necessary so you do not need to worry about this if
- * you are simply using {@link ngTransclude} to inject the transclusion into your directive.
- *
- *
- * #### Transclusion Scopes
- *
- * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion
- * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed
- * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it
- * was taken.
- *
- * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look
- * like this:
- *
- * ```html
- * <div ng-app>
- * <div isolate>
- * <div transclusion>
- * </div>
- * </div>
- * </div>
- * ```
- *
- * The `$parent` scope hierarchy will look like this:
- *
- * ```
- * - $rootScope
- * - isolate
- * - transclusion
- * ```
- *
- * but the scopes will inherit prototypically from different scopes to their `$parent`.
- *
- * ```
- * - $rootScope
- * - transclusion
- * - isolate
- * ```
- *
- *
- * ### Attributes
- *
- * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the
- * `link()` or `compile()` functions. It has a variety of uses.
- *
- * accessing *Normalized attribute names:*
- * Directives like 'ngBind' can be expressed in many ways: 'ng:bind', `data-ng-bind`, or 'x-ng-bind'.
- * the attributes object allows for normalized access to
- * the attributes.
- *
- * * *Directive inter-communication:* All directives share the same instance of the attributes
- * object which allows the directives to use the attributes object as inter directive
- * communication.
- *
- * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object
- * allowing other directives to read the interpolated value.
- *
- * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes
- * that contain interpolation (e.g. `src="{{bar}}"`). Not only is this very efficient but it's also
- * the only way to easily get the actual value because during the linking phase the interpolation
- * hasn't been evaluated yet and so the value is at this time set to `undefined`.
- *
- * ```js
- * function linkingFn(scope, elm, attrs, ctrl) {
- * // get the attribute value
- * console.log(attrs.ngModel);
- *
- * // change the attribute
- * attrs.$set('ngModel', 'new value');
- *
- * // observe changes to interpolated attribute
- * attrs.$observe('ngModel', function(value) {
- * console.log('ngModel has changed value to ' + value);
- * });
- * }
- * ```
- *
- * ## Example
- *
- * <div class="alert alert-warning">
- * **Note**: Typically directives are registered with `module.directive`. The example below is
- * to illustrate how `$compile` works.
- * </div>
- *
- <example module="compileExample">
- <file name="index.html">
- <script>
- angular.module('compileExample', [], function($compileProvider) {
- // configure new 'compile' directive by passing a directive
- // factory function. The factory function injects the '$compile'
- $compileProvider.directive('compile', function($compile) {
- // directive factory creates a link function
- return function(scope, element, attrs) {
- scope.$watch(
- function(scope) {
- // watch the 'compile' expression for changes
- return scope.$eval(attrs.compile);
- },
- function(value) {
- // when the 'compile' expression changes
- // assign it into the current DOM
- element.html(value);
- // compile the new DOM and link it to the current
- // scope.
- // NOTE: we only compile .childNodes so that
- // we don't get into infinite loop compiling ourselves
- $compile(element.contents())(scope);
- }
- );
- };
- });
- })
- .controller('GreeterController', ['$scope', function($scope) {
- $scope.name = 'Angular';
- $scope.html = 'Hello {{name}}';
- }]);
- </script>
- <div ng-controller="GreeterController">
- <input ng-model="name"> <br>
- <textarea ng-model="html"></textarea> <br>
- <div compile="html"></div>
- </div>
- </file>
- <file name="protractor.js" type="protractor">
- it('should auto compile', function() {
- var textarea = $('textarea');
- var output = $('div[compile]');
- // The initial state reads 'Hello Angular'.
- expect(output.getText()).toBe('Hello Angular');
- textarea.clear();
- textarea.sendKeys('{{name}}!');
- expect(output.getText()).toBe('Angular!');
- });
- </file>
- </example>
- *
- *
- * @param {string|DOMElement} element Element or HTML string to compile into a template function.
- * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives.
- * @param {number} maxPriority only apply directives lower than given priority (Only effects the
- * root element(s), not their children)
- * @returns {function(scope, cloneAttachFn=)} a link function which is used to bind template
- * (a DOM element/tree) to a scope. Where:
- *
- * * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.
- * * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the
- * `template` and call the `cloneAttachFn` function allowing the caller to attach the
- * cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is
- * called as: <br> `cloneAttachFn(clonedElement, scope)` where:
- *
- * * `clonedElement` - is a clone of the original `element` passed into the compiler.
- * * `scope` - is the current scope with which the linking function is working with.
- *
- * Calling the linking function returns the element of the template. It is either the original
- * element passed in, or the clone of the element if the `cloneAttachFn` is provided.
- *
- * After linking the view is not updated until after a call to $digest which typically is done by
- * Angular automatically.
- *
- * If you need access to the bound view, there are two ways to do it:
- *
- * - If you are not asking the linking function to clone the template, create the DOM element(s)
- * before you send them to the compiler and keep this reference around.
- * ```js
- * var element = $compile('<p>{{total}}</p>')(scope);
- * ```
- *
- * - if on the other hand, you need the element to be cloned, the view reference from the original
- * example would not point to the clone, but rather to the original template that was cloned. In
- * this case, you can access the clone via the cloneAttachFn:
- * ```js
- * var templateElement = angular.element('<p>{{total}}</p>'),
- * scope = ....;
- *
- * var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {
- * //attach the clone to DOM document at the right place
- * });
- *
- * //now we have reference to the cloned DOM via `clonedElement`
- * ```
- *
- *
- * For information on how the compiler works, see the
- * {@link guide/compiler Angular HTML Compiler} section of the Developer Guide.
- */
- var $compileMinErr = minErr('$compile');
- /**
- * @ngdoc provider
- * @name $compileProvider
- *
- * @description
- */
- $CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];
- function $CompileProvider($provide, $$sanitizeUriProvider) {
- var hasDirectives = {},
- Suffix = 'Directive',
- COMMENT_DIRECTIVE_REGEXP = /^\s*directive\:\s*([\w\-]+)\s+(.*)$/,
- CLASS_DIRECTIVE_REGEXP = /(([\w\-]+)(?:\:([^;]+))?;?)/,
- ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),
- REQUIRE_PREFIX_REGEXP = /^(?:(\^\^?)?(\?)?(\^\^?)?)?/;
- // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes
- // The assumption is that future DOM event attribute names will begin with
- // 'on' and be composed of only English letters.
- var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;
- function parseIsolateBindings(scope, directiveName) {
- var LOCAL_REGEXP = /^\s*([@&]|=(\*?))(\??)\s*(\w*)\s*$/;
- var bindings = {};
- forEach(scope, function(definition, scopeName) {
- var match = definition.match(LOCAL_REGEXP);
- if (!match) {
- throw $compileMinErr('iscp',
- "Invalid isolate scope definition for directive '{0}'." +
- " Definition: {... {1}: '{2}' ...}",
- directiveName, scopeName, definition);
- }
- bindings[scopeName] = {
- mode: match[1][0],
- collection: match[2] === '*',
- optional: match[3] === '?',
- attrName: match[4] || scopeName
- };
- });
- return bindings;
- }
- /**
- * @ngdoc method
- * @name $compileProvider#directive
- * @kind function
- *
- * @description
- * Register a new directive with the compiler.
- *
- * @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which
- * will match as <code>ng-bind</code>), or an object map of directives where the keys are the
- * names and the values are the factories.
- * @param {Function|Array} directiveFactory An injectable directive factory function. See
- * {@link guide/directive} for more info.
- * @returns {ng.$compileProvider} Self for chaining.
- */
- this.directive = function registerDirective(name, directiveFactory) {
- assertNotHasOwnProperty(name, 'directive');
- if (isString(name)) {
- assertArg(directiveFactory, 'directiveFactory');
- if (!hasDirectives.hasOwnProperty(name)) {
- hasDirectives[name] = [];
- $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',
- function($injector, $exceptionHandler) {
- var directives = [];
- forEach(hasDirectives[name], function(directiveFactory, index) {
- try {
- var directive = $injector.invoke(directiveFactory);
- if (isFunction(directive)) {
- directive = { compile: valueFn(directive) };
- } else if (!directive.compile && directive.link) {
- directive.compile = valueFn(directive.link);
- }
- directive.priority = directive.priority || 0;
- directive.index = index;
- directive.name = directive.name || name;
- directive.require = directive.require || (directive.controller && directive.name);
- directive.restrict = directive.restrict || 'EA';
- if (isObject(directive.scope)) {
- directive.$$isolateBindings = parseIsolateBindings(directive.scope, directive.name);
- }
- directives.push(directive);
- } catch (e) {
- $exceptionHandler(e);
- }
- });
- return directives;
- }]);
- }
- hasDirectives[name].push(directiveFactory);
- } else {
- forEach(name, reverseParams(registerDirective));
- }
- return this;
- };
- /**
- * @ngdoc method
- * @name $compileProvider#aHrefSanitizationWhitelist
- * @kind function
- *
- * @description
- * Retrieves or overrides the default regular expression that is used for whitelisting of safe
- * urls during a[href] sanitization.
- *
- * The sanitization is a security measure aimed at prevent XSS attacks via html links.
- *
- * Any url about to be assigned to a[href] via data-binding is first normalized and turned into
- * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`
- * regular expression. If a match is found, the original url is written into the dom. Otherwise,
- * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
- *
- * @param {RegExp=} regexp New regexp to whitelist urls with.
- * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
- * chaining otherwise.
- */
- this.aHrefSanitizationWhitelist = function(regexp) {
- if (isDefined(regexp)) {
- $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);
- return this;
- } else {
- return $$sanitizeUriProvider.aHrefSanitizationWhitelist();
- }
- };
- /**
- * @ngdoc method
- * @name $compileProvider#imgSrcSanitizationWhitelist
- * @kind function
- *
- * @description
- * Retrieves or overrides the default regular expression that is used for whitelisting of safe
- * urls during img[src] sanitization.
- *
- * The sanitization is a security measure aimed at prevent XSS attacks via html links.
- *
- * Any url about to be assigned to img[src] via data-binding is first normalized and turned into
- * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`
- * regular expression. If a match is found, the original url is written into the dom. Otherwise,
- * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
- *
- * @param {RegExp=} regexp New regexp to whitelist urls with.
- * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
- * chaining otherwise.
- */
- this.imgSrcSanitizationWhitelist = function(regexp) {
- if (isDefined(regexp)) {
- $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);
- return this;
- } else {
- return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();
- }
- };
- /**
- * @ngdoc method
- * @name $compileProvider#debugInfoEnabled
- *
- * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the
- * current debugInfoEnabled state
- * @returns {*} current value if used as getter or itself (chaining) if used as setter
- *
- * @kind function
- *
- * @description
- * Call this method to enable/disable various debug runtime information in the compiler such as adding
- * binding information and a reference to the current scope on to DOM elements.
- * If enabled, the compiler will add the following to DOM elements that have been bound to the scope
- * * `ng-binding` CSS class
- * * `$binding` data property containing an array of the binding expressions
- *
- * You may want to use this in production for a significant performance boost. See
- * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.
- *
- * The default value is true.
- */
- var debugInfoEnabled = true;
- this.debugInfoEnabled = function(enabled) {
- if (isDefined(enabled)) {
- debugInfoEnabled = enabled;
- return this;
- }
- return debugInfoEnabled;
- };
- this.$get = [
- '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',
- '$controller', '$rootScope', '$document', '$sce', '$animate', '$$sanitizeUri',
- function($injector, $interpolate, $exceptionHandler, $templateRequest, $parse,
- $controller, $rootScope, $document, $sce, $animate, $$sanitizeUri) {
- var Attributes = function(element, attributesToCopy) {
- if (attributesToCopy) {
- var keys = Object.keys(attributesToCopy);
- var i, l, key;
- for (i = 0, l = keys.length; i < l; i++) {
- key = keys[i];
- this[key] = attributesToCopy[key];
- }
- } else {
- this.$attr = {};
- }
- this.$$element = element;
- };
- Attributes.prototype = {
- $normalize: directiveNormalize,
- /**
- * @ngdoc method
- * @name $compile.directive.Attributes#$addClass
- * @kind function
- *
- * @description
- * Adds the CSS class value specified by the classVal parameter to the element. If animations
- * are enabled then an animation will be triggered for the class addition.
- *
- * @param {string} classVal The className value that will be added to the element
- */
- $addClass: function(classVal) {
- if (classVal && classVal.length > 0) {
- $animate.addClass(this.$$element, classVal);
- }
- },
- /**
- * @ngdoc method
- * @name $compile.directive.Attributes#$removeClass
- * @kind function
- *
- * @description
- * Removes the CSS class value specified by the classVal parameter from the element. If
- * animations are enabled then an animation will be triggered for the class removal.
- *
- * @param {string} classVal The className value that will be removed from the element
- */
- $removeClass: function(classVal) {
- if (classVal && classVal.length > 0) {
- $animate.removeClass(this.$$element, classVal);
- }
- },
- /**
- * @ngdoc method
- * @name $compile.directive.Attributes#$updateClass
- * @kind function
- *
- * @description
- * Adds and removes the appropriate CSS class values to the element based on the difference
- * between the new and old CSS class values (specified as newClasses and oldClasses).
- *
- * @param {string} newClasses The current CSS className value
- * @param {string} oldClasses The former CSS className value
- */
- $updateClass: function(newClasses, oldClasses) {
- var toAdd = tokenDifference(newClasses, oldClasses);
- if (toAdd && toAdd.length) {
- $animate.addClass(this.$$element, toAdd);
- }
- var toRemove = tokenDifference(oldClasses, newClasses);
- if (toRemove && toRemove.length) {
- $animate.removeClass(this.$$element, toRemove);
- }
- },
- /**
- * Set a normalized attribute on the element in a way such that all directives
- * can share the attribute. This function properly handles boolean attributes.
- * @param {string} key Normalized key. (ie ngAttribute)
- * @param {string|boolean} value The value to set. If `null` attribute will be deleted.
- * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.
- * Defaults to true.
- * @param {string=} attrName Optional none normalized name. Defaults to key.
- */
- $set: function(key, value, writeAttr, attrName) {
- // TODO: decide whether or not to throw an error if "class"
- //is set through this function since it may cause $updateClass to
- //become unstable.
- var node = this.$$element[0],
- booleanKey = getBooleanAttrName(node, key),
- aliasedKey = getAliasedAttrName(node, key),
- observer = key,
- nodeName;
- if (booleanKey) {
- this.$$element.prop(key, value);
- attrName = booleanKey;
- } else if (aliasedKey) {
- this[aliasedKey] = value;
- observer = aliasedKey;
- }
- this[key] = value;
- // translate normalized key to actual key
- if (attrName) {
- this.$attr[key] = attrName;
- } else {
- attrName = this.$attr[key];
- if (!attrName) {
- this.$attr[key] = attrName = snake_case(key, '-');
- }
- }
- nodeName = nodeName_(this.$$element);
- if ((nodeName === 'a' && key === 'href') ||
- (nodeName === 'img' && key === 'src')) {
- // sanitize a[href] and img[src] values
- this[key] = value = $$sanitizeUri(value, key === 'src');
- } else if (nodeName === 'img' && key === 'srcset') {
- // sanitize img[srcset] values
- var result = "";
- // first check if there are spaces because it's not the same pattern
- var trimmedSrcset = trim(value);
- // ( 999x ,| 999w ,| ,|, )
- var srcPattern = /(\s+\d+x\s*,|\s+\d+w\s*,|\s+,|,\s+)/;
- var pattern = /\s/.test(trimmedSrcset) ? srcPattern : /(,)/;
- // split srcset into tuple of uri and descriptor except for the last item
- var rawUris = trimmedSrcset.split(pattern);
- // for each tuples
- var nbrUrisWith2parts = Math.floor(rawUris.length / 2);
- for (var i=0; i<nbrUrisWith2parts; i++) {
- var innerIdx = i*2;
- // sanitize the uri
- result += $$sanitizeUri(trim(rawUris[innerIdx]), true);
- // add the descriptor
- result += (" " + trim(rawUris[innerIdx+1]));
- }
- // split the last item into uri and descriptor
- var lastTuple = trim(rawUris[i*2]).split(/\s/);
- // sanitize the last uri
- result += $$sanitizeUri(trim(lastTuple[0]), true);
- // and add the last descriptor if any
- if (lastTuple.length === 2) {
- result += (" " + trim(lastTuple[1]));
- }
- this[key] = value = result;
- }
- if (writeAttr !== false) {
- if (value === null || value === undefined) {
- this.$$element.removeAttr(attrName);
- } else {
- this.$$element.attr(attrName, value);
- }
- }
- // fire observers
- var $$observers = this.$$observers;
- $$observers && forEach($$observers[observer], function(fn) {
- try {
- fn(value);
- } catch (e) {
- $exceptionHandler(e);
- }
- });
- },
- /**
- * @ngdoc method
- * @name $compile.directive.Attributes#$observe
- * @kind function
- *
- * @description
- * Observes an interpolated attribute.
- *
- * The observer function will be invoked once during the next `$digest` following
- * compilation. The observer is then invoked whenever the interpolated value
- * changes.
- *
- * @param {string} key Normalized key. (ie ngAttribute) .
- * @param {function(interpolatedValue)} fn Function that will be called whenever
- the interpolated value of the attribute changes.
- * See the {@link guide/directive#text-and-attribute-bindings Directives} guide for more info.
- * @returns {function()} Returns a deregistration function for this observer.
- */
- $observe: function(key, fn) {
- var attrs = this,
- $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),
- listeners = ($$observers[key] || ($$observers[key] = []));
- listeners.push(fn);
- $rootScope.$evalAsync(function() {
- if (!listeners.$$inter && attrs.hasOwnProperty(key)) {
- // no one registered attribute interpolation function, so lets call it manually
- fn(attrs[key]);
- }
- });
- return function() {
- arrayRemove(listeners, fn);
- };
- }
- };
- function safeAddClass($element, className) {
- try {
- $element.addClass(className);
- } catch (e) {
- // ignore, since it means that we are trying to set class on
- // SVG element, where class name is read-only.
- }
- }
- var startSymbol = $interpolate.startSymbol(),
- endSymbol = $interpolate.endSymbol(),
- denormalizeTemplate = (startSymbol == '{{' || endSymbol == '}}')
- ? identity
- : function denormalizeTemplate(template) {
- return template.replace(/\{\{/g, startSymbol).replace(/}}/g, endSymbol);
- },
- NG_ATTR_BINDING = /^ngAttr[A-Z]/;
- compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {
- var bindings = $element.data('$binding') || [];
- if (isArray(binding)) {
- bindings = bindings.concat(binding);
- } else {
- bindings.push(binding);
- }
- $element.data('$binding', bindings);
- } : noop;
- compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {
- safeAddClass($element, 'ng-binding');
- } : noop;
- compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {
- var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';
- $element.data(dataName, scope);
- } : noop;
- compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {
- safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');
- } : noop;
- return compile;
- //================================
- function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,
- previousCompileContext) {
- if (!($compileNodes instanceof jqLite)) {
- // jquery always rewraps, whereas we need to preserve the original selector so that we can
- // modify it.
- $compileNodes = jqLite($compileNodes);
- }
- // We can not compile top level text elements since text nodes can be merged and we will
- // not be able to attach scope data to them, so we will wrap them in <span>
- forEach($compileNodes, function(node, index) {
- if (node.nodeType == NODE_TYPE_TEXT && node.nodeValue.match(/\S+/) /* non-empty */ ) {
- $compileNodes[index] = jqLite(node).wrap('<span></span>').parent()[0];
- }
- });
- var compositeLinkFn =
- compileNodes($compileNodes, transcludeFn, $compileNodes,
- maxPriority, ignoreDirective, previousCompileContext);
- compile.$$addScopeClass($compileNodes);
- var namespace = null;
- return function publicLinkFn(scope, cloneConnectFn, transcludeControllers, parentBoundTranscludeFn, futureParentElement) {
- assertArg(scope, 'scope');
- if (!namespace) {
- namespace = detectNamespaceForChildElements(futureParentElement);
- }
- var $linkNode;
- if (namespace !== 'html') {
- // When using a directive with replace:true and templateUrl the $compileNodes
- // (or a child element inside of them)
- // might change, so we need to recreate the namespace adapted compileNodes
- // for call to the link function.
- // Note: This will already clone the nodes...
- $linkNode = jqLite(
- wrapTemplate(namespace, jqLite('<div>').append($compileNodes).html())
- );
- } else if (cloneConnectFn) {
- // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart
- // and sometimes changes the structure of the DOM.
- $linkNode = JQLitePrototype.clone.call($compileNodes);
- } else {
- $linkNode = $compileNodes;
- }
- if (transcludeControllers) {
- for (var controllerName in transcludeControllers) {
- $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);
- }
- }
- compile.$$addScopeInfo($linkNode, scope);
- if (cloneConnectFn) cloneConnectFn($linkNode, scope);
- if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);
- return $linkNode;
- };
- }
- function detectNamespaceForChildElements(parentElement) {
- // TODO: Make this detect MathML as well...
- var node = parentElement && parentElement[0];
- if (!node) {
- return 'html';
- } else {
- return nodeName_(node) !== 'foreignobject' && node.toString().match(/SVG/) ? 'svg': 'html';
- }
- }
- /**
- * Compile function matches each node in nodeList against the directives. Once all directives
- * for a particular node are collected their compile functions are executed. The compile
- * functions return values - the linking functions - are combined into a composite linking
- * function, which is the a linking function for the node.
- *
- * @param {NodeList} nodeList an array of nodes or NodeList to compile
- * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the
- * scope argument is auto-generated to the new child of the transcluded parent scope.
- * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then
- * the rootElement must be set the jqLite collection of the compile root. This is
- * needed so that the jqLite collection items can be replaced with widgets.
- * @param {number=} maxPriority Max directive priority.
- * @returns {Function} A composite linking function of all of the matched directives or null.
- */
- function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,
- previousCompileContext) {
- var linkFns = [],
- attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;
- for (var i = 0; i < nodeList.length; i++) {
- attrs = new Attributes();
- // we must always refer to nodeList[i] since the nodes can be replaced underneath us.
- directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,
- ignoreDirective);
- nodeLinkFn = (directives.length)
- ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,
- null, [], [], previousCompileContext)
- : null;
- if (nodeLinkFn && nodeLinkFn.scope) {
- compile.$$addScopeClass(attrs.$$element);
- }
- childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||
- !(childNodes = nodeList[i].childNodes) ||
- !childNodes.length)
- ? null
- : compileNodes(childNodes,
- nodeLinkFn ? (
- (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)
- && nodeLinkFn.transclude) : transcludeFn);
- if (nodeLinkFn || childLinkFn) {
- linkFns.push(i, nodeLinkFn, childLinkFn);
- linkFnFound = true;
- nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;
- }
- //use the previous context only for the first element in the virtual group
- previousCompileContext = null;
- }
- // return a linking function if we have found anything, null otherwise
- return linkFnFound ? compositeLinkFn : null;
- function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {
- var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;
- var stableNodeList;
- if (nodeLinkFnFound) {
- // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our
- // offsets don't get screwed up
- var nodeListLength = nodeList.length;
- stableNodeList = new Array(nodeListLength);
- // create a sparse array by only copying the elements which have a linkFn
- for (i = 0; i < linkFns.length; i+=3) {
- idx = linkFns[i];
- stableNodeList[idx] = nodeList[idx];
- }
- } else {
- stableNodeList = nodeList;
- }
- for (i = 0, ii = linkFns.length; i < ii;) {
- node = stableNodeList[linkFns[i++]];
- nodeLinkFn = linkFns[i++];
- childLinkFn = linkFns[i++];
- if (nodeLinkFn) {
- if (nodeLinkFn.scope) {
- childScope = scope.$new();
- compile.$$addScopeInfo(jqLite(node), childScope);
- } else {
- childScope = scope;
- }
- if (nodeLinkFn.transcludeOnThisElement) {
- childBoundTranscludeFn = createBoundTranscludeFn(
- scope, nodeLinkFn.transclude, parentBoundTranscludeFn,
- nodeLinkFn.elementTranscludeOnThisElement);
- } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {
- childBoundTranscludeFn = parentBoundTranscludeFn;
- } else if (!parentBoundTranscludeFn && transcludeFn) {
- childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);
- } else {
- childBoundTranscludeFn = null;
- }
- nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);
- } else if (childLinkFn) {
- childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);
- }
- }
- }
- }
- function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn, elementTransclusion) {
- var boundTranscludeFn = function(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {
- if (!transcludedScope) {
- transcludedScope = scope.$new(false, containingScope);
- transcludedScope.$$transcluded = true;
- }
- return transcludeFn(transcludedScope, cloneFn, controllers, previousBoundTranscludeFn, futureParentElement);
- };
- return boundTranscludeFn;
- }
- /**
- * Looks for directives on the given node and adds them to the directive collection which is
- * sorted.
- *
- * @param node Node to search.
- * @param directives An array to which the directives are added to. This array is sorted before
- * the function returns.
- * @param attrs The shared attrs object which is used to populate the normalized attributes.
- * @param {number=} maxPriority Max directive priority.
- */
- function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {
- var nodeType = node.nodeType,
- attrsMap = attrs.$attr,
- match,
- className;
- switch (nodeType) {
- case NODE_TYPE_ELEMENT: /* Element */
- // use the node name: <directive>
- addDirective(directives,
- directiveNormalize(nodeName_(node)), 'E', maxPriority, ignoreDirective);
- // iterate over the attributes
- for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,
- j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {
- var attrStartName = false;
- var attrEndName = false;
- attr = nAttrs[j];
- name = attr.name;
- value = trim(attr.value);
- // support ngAttr attribute binding
- ngAttrName = directiveNormalize(name);
- if (isNgAttr = NG_ATTR_BINDING.test(ngAttrName)) {
- name = snake_case(ngAttrName.substr(6), '-');
- }
- var directiveNName = ngAttrName.replace(/(Start|End)$/, '');
- if (directiveIsMultiElement(directiveNName)) {
- if (ngAttrName === directiveNName + 'Start') {
- attrStartName = name;
- attrEndName = name.substr(0, name.length - 5) + 'end';
- name = name.substr(0, name.length - 6);
- }
- }
- nName = directiveNormalize(name.toLowerCase());
- attrsMap[nName] = name;
- if (isNgAttr || !attrs.hasOwnProperty(nName)) {
- attrs[nName] = value;
- if (getBooleanAttrName(node, nName)) {
- attrs[nName] = true; // presence means true
- }
- }
- addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);
- addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,
- attrEndName);
- }
- // use class as directive
- className = node.className;
- if (isString(className) && className !== '') {
- while (match = CLASS_DIRECTIVE_REGEXP.exec(className)) {
- nName = directiveNormalize(match[2]);
- if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {
- attrs[nName] = trim(match[3]);
- }
- className = className.substr(match.index + match[0].length);
- }
- }
- break;
- case NODE_TYPE_TEXT: /* Text Node */
- addTextInterpolateDirective(directives, node.nodeValue);
- break;
- case NODE_TYPE_COMMENT: /* Comment */
- try {
- match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);
- if (match) {
- nName = directiveNormalize(match[1]);
- if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {
- attrs[nName] = trim(match[2]);
- }
- }
- } catch (e) {
- // turns out that under some circumstances IE9 throws errors when one attempts to read
- // comment's node value.
- // Just ignore it and continue. (Can't seem to reproduce in test case.)
- }
- break;
- }
- directives.sort(byPriority);
- return directives;
- }
- /**
- * Given a node with an directive-start it collects all of the siblings until it finds
- * directive-end.
- * @param node
- * @param attrStart
- * @param attrEnd
- * @returns {*}
- */
- function groupScan(node, attrStart, attrEnd) {
- var nodes = [];
- var depth = 0;
- if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {
- do {
- if (!node) {
- throw $compileMinErr('uterdir',
- "Unterminated attribute, found '{0}' but no matching '{1}' found.",
- attrStart, attrEnd);
- }
- if (node.nodeType == NODE_TYPE_ELEMENT) {
- if (node.hasAttribute(attrStart)) depth++;
- if (node.hasAttribute(attrEnd)) depth--;
- }
- nodes.push(node);
- node = node.nextSibling;
- } while (depth > 0);
- } else {
- nodes.push(node);
- }
- return jqLite(nodes);
- }
- /**
- * Wrapper for linking function which converts normal linking function into a grouped
- * linking function.
- * @param linkFn
- * @param attrStart
- * @param attrEnd
- * @returns {Function}
- */
- function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {
- return function(scope, element, attrs, controllers, transcludeFn) {
- element = groupScan(element[0], attrStart, attrEnd);
- return linkFn(scope, element, attrs, controllers, transcludeFn);
- };
- }
- /**
- * Once the directives have been collected, their compile functions are executed. This method
- * is responsible for inlining directive templates as well as terminating the application
- * of the directives if the terminal directive has been reached.
- *
- * @param {Array} directives Array of collected directives to execute their compile function.
- * this needs to be pre-sorted by priority order.
- * @param {Node} compileNode The raw DOM node to apply the compile functions to
- * @param {Object} templateAttrs The shared attribute function
- * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the
- * scope argument is auto-generated to the new
- * child of the transcluded parent scope.
- * @param {JQLite} jqCollection If we are working on the root of the compile tree then this
- * argument has the root jqLite array so that we can replace nodes
- * on it.
- * @param {Object=} originalReplaceDirective An optional directive that will be ignored when
- * compiling the transclusion.
- * @param {Array.<Function>} preLinkFns
- * @param {Array.<Function>} postLinkFns
- * @param {Object} previousCompileContext Context used for previous compilation of the current
- * node
- * @returns {Function} linkFn
- */
- function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,
- jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,
- previousCompileContext) {
- previousCompileContext = previousCompileContext || {};
- var terminalPriority = -Number.MAX_VALUE,
- newScopeDirective,
- controllerDirectives = previousCompileContext.controllerDirectives,
- controllers,
- newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,
- templateDirective = previousCompileContext.templateDirective,
- nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,
- hasTranscludeDirective = false,
- hasTemplate = false,
- hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,
- $compileNode = templateAttrs.$$element = jqLite(compileNode),
- directive,
- directiveName,
- $template,
- replaceDirective = originalReplaceDirective,
- childTranscludeFn = transcludeFn,
- linkFn,
- directiveValue;
- // executes all directives on the current element
- for (var i = 0, ii = directives.length; i < ii; i++) {
- directive = directives[i];
- var attrStart = directive.$$start;
- var attrEnd = directive.$$end;
- // collect multiblock sections
- if (attrStart) {
- $compileNode = groupScan(compileNode, attrStart, attrEnd);
- }
- $template = undefined;
- if (terminalPriority > directive.priority) {
- break; // prevent further processing of directives
- }
- if (directiveValue = directive.scope) {
- // skip the check for directives with async templates, we'll check the derived sync
- // directive when the template arrives
- if (!directive.templateUrl) {
- if (isObject(directiveValue)) {
- // This directive is trying to add an isolated scope.
- // Check that there is no scope of any kind already
- assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,
- directive, $compileNode);
- newIsolateScopeDirective = directive;
- } else {
- // This directive is trying to add a child scope.
- // Check that there is no isolated scope already
- assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,
- $compileNode);
- }
- }
- newScopeDirective = newScopeDirective || directive;
- }
- directiveName = directive.name;
- if (!directive.templateUrl && directive.controller) {
- directiveValue = directive.controller;
- controllerDirectives = controllerDirectives || {};
- assertNoDuplicate("'" + directiveName + "' controller",
- controllerDirectives[directiveName], directive, $compileNode);
- controllerDirectives[directiveName] = directive;
- }
- if (directiveValue = directive.transclude) {
- hasTranscludeDirective = true;
- // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.
- // This option should only be used by directives that know how to safely handle element transclusion,
- // where the transcluded nodes are added or replaced after linking.
- if (!directive.$$tlb) {
- assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);
- nonTlbTranscludeDirective = directive;
- }
- if (directiveValue == 'element') {
- hasElementTranscludeDirective = true;
- terminalPriority = directive.priority;
- $template = $compileNode;
- $compileNode = templateAttrs.$$element =
- jqLite(document.createComment(' ' + directiveName + ': ' +
- templateAttrs[directiveName] + ' '));
- compileNode = $compileNode[0];
- replaceWith(jqCollection, sliceArgs($template), compileNode);
- childTranscludeFn = compile($template, transcludeFn, terminalPriority,
- replaceDirective && replaceDirective.name, {
- // Don't pass in:
- // - controllerDirectives - otherwise we'll create duplicates controllers
- // - newIsolateScopeDirective or templateDirective - combining templates with
- // element transclusion doesn't make sense.
- //
- // We need only nonTlbTranscludeDirective so that we prevent putting transclusion
- // on the same element more than once.
- nonTlbTranscludeDirective: nonTlbTranscludeDirective
- });
- } else {
- $template = jqLite(jqLiteClone(compileNode)).contents();
- $compileNode.empty(); // clear contents
- childTranscludeFn = compile($template, transcludeFn);
- }
- }
- if (directive.template) {
- hasTemplate = true;
- assertNoDuplicate('template', templateDirective, directive, $compileNode);
- templateDirective = directive;
- directiveValue = (isFunction(directive.template))
- ? directive.template($compileNode, templateAttrs)
- : directive.template;
- directiveValue = denormalizeTemplate(directiveValue);
- if (directive.replace) {
- replaceDirective = directive;
- if (jqLiteIsTextNode(directiveValue)) {
- $template = [];
- } else {
- $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));
- }
- compileNode = $template[0];
- if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {
- throw $compileMinErr('tplrt',
- "Template for directive '{0}' must have exactly one root element. {1}",
- directiveName, '');
- }
- replaceWith(jqCollection, $compileNode, compileNode);
- var newTemplateAttrs = {$attr: {}};
- // combine directives from the original node and from the template:
- // - take the array of directives for this element
- // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)
- // - collect directives from the template and sort them by priority
- // - combine directives as: processed + template + unprocessed
- var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);
- var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));
- if (newIsolateScopeDirective) {
- markDirectivesAsIsolate(templateDirectives);
- }
- directives = directives.concat(templateDirectives).concat(unprocessedDirectives);
- mergeTemplateAttributes(templateAttrs, newTemplateAttrs);
- ii = directives.length;
- } else {
- $compileNode.html(directiveValue);
- }
- }
- if (directive.templateUrl) {
- hasTemplate = true;
- assertNoDuplicate('template', templateDirective, directive, $compileNode);
- templateDirective = directive;
- if (directive.replace) {
- replaceDirective = directive;
- }
- nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,
- templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {
- controllerDirectives: controllerDirectives,
- newIsolateScopeDirective: newIsolateScopeDirective,
- templateDirective: templateDirective,
- nonTlbTranscludeDirective: nonTlbTranscludeDirective
- });
- ii = directives.length;
- } else if (directive.compile) {
- try {
- linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);
- if (isFunction(linkFn)) {
- addLinkFns(null, linkFn, attrStart, attrEnd);
- } else if (linkFn) {
- addLinkFns(linkFn.pre, linkFn.post, attrStart, attrEnd);
- }
- } catch (e) {
- $exceptionHandler(e, startingTag($compileNode));
- }
- }
- if (directive.terminal) {
- nodeLinkFn.terminal = true;
- terminalPriority = Math.max(terminalPriority, directive.priority);
- }
- }
- nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;
- nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;
- nodeLinkFn.elementTranscludeOnThisElement = hasElementTranscludeDirective;
- nodeLinkFn.templateOnThisElement = hasTemplate;
- nodeLinkFn.transclude = childTranscludeFn;
- previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;
- // might be normal or delayed nodeLinkFn depending on if templateUrl is present
- return nodeLinkFn;
- ////////////////////
- function addLinkFns(pre, post, attrStart, attrEnd) {
- if (pre) {
- if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);
- pre.require = directive.require;
- pre.directiveName = directiveName;
- if (newIsolateScopeDirective === directive || directive.$$isolateScope) {
- pre = cloneAndAnnotateFn(pre, {isolateScope: true});
- }
- preLinkFns.push(pre);
- }
- if (post) {
- if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);
- post.require = directive.require;
- post.directiveName = directiveName;
- if (newIsolateScopeDirective === directive || directive.$$isolateScope) {
- post = cloneAndAnnotateFn(post, {isolateScope: true});
- }
- postLinkFns.push(post);
- }
- }
- function getControllers(directiveName, require, $element, elementControllers) {
- var value, retrievalMethod = 'data', optional = false;
- var $searchElement = $element;
- var match;
- if (isString(require)) {
- match = require.match(REQUIRE_PREFIX_REGEXP);
- require = require.substring(match[0].length);
- if (match[3]) {
- if (match[1]) match[3] = null;
- else match[1] = match[3];
- }
- if (match[1] === '^') {
- retrievalMethod = 'inheritedData';
- } else if (match[1] === '^^') {
- retrievalMethod = 'inheritedData';
- $searchElement = $element.parent();
- }
- if (match[2] === '?') {
- optional = true;
- }
- value = null;
- if (elementControllers && retrievalMethod === 'data') {
- if (value = elementControllers[require]) {
- value = value.instance;
- }
- }
- value = value || $searchElement[retrievalMethod]('$' + require + 'Controller');
- if (!value && !optional) {
- throw $compileMinErr('ctreq',
- "Controller '{0}', required by directive '{1}', can't be found!",
- require, directiveName);
- }
- return value || null;
- } else if (isArray(require)) {
- value = [];
- forEach(require, function(require) {
- value.push(getControllers(directiveName, require, $element, elementControllers));
- });
- }
- return value;
- }
- function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {
- var i, ii, linkFn, controller, isolateScope, elementControllers, transcludeFn, $element,
- attrs;
- if (compileNode === linkNode) {
- attrs = templateAttrs;
- $element = templateAttrs.$$element;
- } else {
- $element = jqLite(linkNode);
- attrs = new Attributes($element, templateAttrs);
- }
- if (newIsolateScopeDirective) {
- isolateScope = scope.$new(true);
- }
- transcludeFn = boundTranscludeFn && controllersBoundTransclude;
- if (controllerDirectives) {
- // TODO: merge `controllers` and `elementControllers` into single object.
- controllers = {};
- elementControllers = {};
- forEach(controllerDirectives, function(directive) {
- var locals = {
- $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,
- $element: $element,
- $attrs: attrs,
- $transclude: transcludeFn
- }, controllerInstance;
- controller = directive.controller;
- if (controller == '@') {
- controller = attrs[directive.name];
- }
- controllerInstance = $controller(controller, locals, true, directive.controllerAs);
- // For directives with element transclusion the element is a comment,
- // but jQuery .data doesn't support attaching data to comment nodes as it's hard to
- // clean up (http://bugs.jquery.com/ticket/8335).
- // Instead, we save the controllers for the element in a local hash and attach to .data
- // later, once we have the actual element.
- elementControllers[directive.name] = controllerInstance;
- if (!hasElementTranscludeDirective) {
- $element.data('$' + directive.name + 'Controller', controllerInstance.instance);
- }
- controllers[directive.name] = controllerInstance;
- });
- }
- if (newIsolateScopeDirective) {
- compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||
- templateDirective === newIsolateScopeDirective.$$originalDirective)));
- compile.$$addScopeClass($element, true);
- var isolateScopeController = controllers && controllers[newIsolateScopeDirective.name];
- var isolateBindingContext = isolateScope;
- if (isolateScopeController && isolateScopeController.identifier &&
- newIsolateScopeDirective.bindToController === true) {
- isolateBindingContext = isolateScopeController.instance;
- }
- forEach(isolateScope.$$isolateBindings = newIsolateScopeDirective.$$isolateBindings, function(definition, scopeName) {
- var attrName = definition.attrName,
- optional = definition.optional,
- mode = definition.mode, // @, =, or &
- lastValue,
- parentGet, parentSet, compare;
- switch (mode) {
- case '@':
- attrs.$observe(attrName, function(value) {
- isolateBindingContext[scopeName] = value;
- });
- attrs.$$observers[attrName].$$scope = scope;
- if (attrs[attrName]) {
- // If the attribute has been provided then we trigger an interpolation to ensure
- // the value is there for use in the link fn
- isolateBindingContext[scopeName] = $interpolate(attrs[attrName])(scope);
- }
- break;
- case '=':
- if (optional && !attrs[attrName]) {
- return;
- }
- parentGet = $parse(attrs[attrName]);
- if (parentGet.literal) {
- compare = equals;
- } else {
- compare = function(a, b) { return a === b || (a !== a && b !== b); };
- }
- parentSet = parentGet.assign || function() {
- // reset the change, or we will throw this exception on every $digest
- lastValue = isolateBindingContext[scopeName] = parentGet(scope);
- throw $compileMinErr('nonassign',
- "Expression '{0}' used with directive '{1}' is non-assignable!",
- attrs[attrName], newIsolateScopeDirective.name);
- };
- lastValue = isolateBindingContext[scopeName] = parentGet(scope);
- var parentValueWatch = function parentValueWatch(parentValue) {
- if (!compare(parentValue, isolateBindingContext[scopeName])) {
- // we are out of sync and need to copy
- if (!compare(parentValue, lastValue)) {
- // parent changed and it has precedence
- isolateBindingContext[scopeName] = parentValue;
- } else {
- // if the parent can be assigned then do so
- parentSet(scope, parentValue = isolateBindingContext[scopeName]);
- }
- }
- return lastValue = parentValue;
- };
- parentValueWatch.$stateful = true;
- var unwatch;
- if (definition.collection) {
- unwatch = scope.$watchCollection(attrs[attrName], parentValueWatch);
- } else {
- unwatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);
- }
- isolateScope.$on('$destroy', unwatch);
- break;
- case '&':
- parentGet = $parse(attrs[attrName]);
- isolateBindingContext[scopeName] = function(locals) {
- return parentGet(scope, locals);
- };
- break;
- }
- });
- }
- if (controllers) {
- forEach(controllers, function(controller) {
- controller();
- });
- controllers = null;
- }
- // PRELINKING
- for (i = 0, ii = preLinkFns.length; i < ii; i++) {
- linkFn = preLinkFns[i];
- invokeLinkFn(linkFn,
- linkFn.isolateScope ? isolateScope : scope,
- $element,
- attrs,
- linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),
- transcludeFn
- );
- }
- // RECURSION
- // We only pass the isolate scope, if the isolate directive has a template,
- // otherwise the child elements do not belong to the isolate directive.
- var scopeToChild = scope;
- if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {
- scopeToChild = isolateScope;
- }
- childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);
- // POSTLINKING
- for (i = postLinkFns.length - 1; i >= 0; i--) {
- linkFn = postLinkFns[i];
- invokeLinkFn(linkFn,
- linkFn.isolateScope ? isolateScope : scope,
- $element,
- attrs,
- linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),
- transcludeFn
- );
- }
- // This is the function that is injected as `$transclude`.
- // Note: all arguments are optional!
- function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement) {
- var transcludeControllers;
- // No scope passed in:
- if (!isScope(scope)) {
- futureParentElement = cloneAttachFn;
- cloneAttachFn = scope;
- scope = undefined;
- }
- if (hasElementTranscludeDirective) {
- transcludeControllers = elementControllers;
- }
- if (!futureParentElement) {
- futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;
- }
- return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);
- }
- }
- }
- function markDirectivesAsIsolate(directives) {
- // mark all directives as needing isolate scope.
- for (var j = 0, jj = directives.length; j < jj; j++) {
- directives[j] = inherit(directives[j], {$$isolateScope: true});
- }
- }
- /**
- * looks up the directive and decorates it with exception handling and proper parameters. We
- * call this the boundDirective.
- *
- * @param {string} name name of the directive to look up.
- * @param {string} location The directive must be found in specific format.
- * String containing any of theses characters:
- *
- * * `E`: element name
- * * `A': attribute
- * * `C`: class
- * * `M`: comment
- * @returns {boolean} true if directive was added.
- */
- function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,
- endAttrName) {
- if (name === ignoreDirective) return null;
- var match = null;
- if (hasDirectives.hasOwnProperty(name)) {
- for (var directive, directives = $injector.get(name + Suffix),
- i = 0, ii = directives.length; i<ii; i++) {
- try {
- directive = directives[i];
- if ((maxPriority === undefined || maxPriority > directive.priority) &&
- directive.restrict.indexOf(location) != -1) {
- if (startAttrName) {
- directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});
- }
- tDirectives.push(directive);
- match = directive;
- }
- } catch (e) { $exceptionHandler(e); }
- }
- }
- return match;
- }
- /**
- * looks up the directive and returns true if it is a multi-element directive,
- * and therefore requires DOM nodes between -start and -end markers to be grouped
- * together.
- *
- * @param {string} name name of the directive to look up.
- * @returns true if directive was registered as multi-element.
- */
- function directiveIsMultiElement(name) {
- if (hasDirectives.hasOwnProperty(name)) {
- for (var directive, directives = $injector.get(name + Suffix),
- i = 0, ii = directives.length; i<ii; i++) {
- directive = directives[i];
- if (directive.multiElement) {
- return true;
- }
- }
- }
- return false;
- }
- /**
- * When the element is replaced with HTML template then the new attributes
- * on the template need to be merged with the existing attributes in the DOM.
- * The desired effect is to have both of the attributes present.
- *
- * @param {object} dst destination attributes (original DOM)
- * @param {object} src source attributes (from the directive template)
- */
- function mergeTemplateAttributes(dst, src) {
- var srcAttr = src.$attr,
- dstAttr = dst.$attr,
- $element = dst.$$element;
- // reapply the old attributes to the new element
- forEach(dst, function(value, key) {
- if (key.charAt(0) != '$') {
- if (src[key] && src[key] !== value) {
- value += (key === 'style' ? ';' : ' ') + src[key];
- }
- dst.$set(key, value, true, srcAttr[key]);
- }
- });
- // copy the new attributes on the old attrs object
- forEach(src, function(value, key) {
- if (key == 'class') {
- safeAddClass($element, value);
- dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;
- } else if (key == 'style') {
- $element.attr('style', $element.attr('style') + ';' + value);
- dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value;
- // `dst` will never contain hasOwnProperty as DOM parser won't let it.
- // You will get an "InvalidCharacterError: DOM Exception 5" error if you
- // have an attribute like "has-own-property" or "data-has-own-property", etc.
- } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {
- dst[key] = value;
- dstAttr[key] = srcAttr[key];
- }
- });
- }
- function compileTemplateUrl(directives, $compileNode, tAttrs,
- $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {
- var linkQueue = [],
- afterTemplateNodeLinkFn,
- afterTemplateChildLinkFn,
- beforeTemplateCompileNode = $compileNode[0],
- origAsyncDirective = directives.shift(),
- // The fact that we have to copy and patch the directive seems wrong!
- derivedSyncDirective = extend({}, origAsyncDirective, {
- templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective
- }),
- templateUrl = (isFunction(origAsyncDirective.templateUrl))
- ? origAsyncDirective.templateUrl($compileNode, tAttrs)
- : origAsyncDirective.templateUrl,
- templateNamespace = origAsyncDirective.templateNamespace;
- $compileNode.empty();
- $templateRequest($sce.getTrustedResourceUrl(templateUrl))
- .then(function(content) {
- var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;
- content = denormalizeTemplate(content);
- if (origAsyncDirective.replace) {
- if (jqLiteIsTextNode(content)) {
- $template = [];
- } else {
- $template = removeComments(wrapTemplate(templateNamespace, trim(content)));
- }
- compileNode = $template[0];
- if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {
- throw $compileMinErr('tplrt',
- "Template for directive '{0}' must have exactly one root element. {1}",
- origAsyncDirective.name, templateUrl);
- }
- tempTemplateAttrs = {$attr: {}};
- replaceWith($rootElement, $compileNode, compileNode);
- var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);
- if (isObject(origAsyncDirective.scope)) {
- markDirectivesAsIsolate(templateDirectives);
- }
- directives = templateDirectives.concat(directives);
- mergeTemplateAttributes(tAttrs, tempTemplateAttrs);
- } else {
- compileNode = beforeTemplateCompileNode;
- $compileNode.html(content);
- }
- directives.unshift(derivedSyncDirective);
- afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,
- childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,
- previousCompileContext);
- forEach($rootElement, function(node, i) {
- if (node == compileNode) {
- $rootElement[i] = $compileNode[0];
- }
- });
- afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);
- while (linkQueue.length) {
- var scope = linkQueue.shift(),
- beforeTemplateLinkNode = linkQueue.shift(),
- linkRootElement = linkQueue.shift(),
- boundTranscludeFn = linkQueue.shift(),
- linkNode = $compileNode[0];
- if (scope.$$destroyed) continue;
- if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {
- var oldClasses = beforeTemplateLinkNode.className;
- if (!(previousCompileContext.hasElementTranscludeDirective &&
- origAsyncDirective.replace)) {
- // it was cloned therefore we have to clone as well.
- linkNode = jqLiteClone(compileNode);
- }
- replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);
- // Copy in CSS classes from original node
- safeAddClass(jqLite(linkNode), oldClasses);
- }
- if (afterTemplateNodeLinkFn.transcludeOnThisElement) {
- childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);
- } else {
- childBoundTranscludeFn = boundTranscludeFn;
- }
- afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,
- childBoundTranscludeFn);
- }
- linkQueue = null;
- });
- return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {
- var childBoundTranscludeFn = boundTranscludeFn;
- if (scope.$$destroyed) return;
- if (linkQueue) {
- linkQueue.push(scope);
- linkQueue.push(node);
- linkQueue.push(rootElement);
- linkQueue.push(childBoundTranscludeFn);
- } else {
- if (afterTemplateNodeLinkFn.transcludeOnThisElement) {
- childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);
- }
- afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);
- }
- };
- }
- /**
- * Sorting function for bound directives.
- */
- function byPriority(a, b) {
- var diff = b.priority - a.priority;
- if (diff !== 0) return diff;
- if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;
- return a.index - b.index;
- }
- function assertNoDuplicate(what, previousDirective, directive, element) {
- if (previousDirective) {
- throw $compileMinErr('multidir', 'Multiple directives [{0}, {1}] asking for {2} on: {3}',
- previousDirective.name, directive.name, what, startingTag(element));
- }
- }
- function addTextInterpolateDirective(directives, text) {
- var interpolateFn = $interpolate(text, true);
- if (interpolateFn) {
- directives.push({
- priority: 0,
- compile: function textInterpolateCompileFn(templateNode) {
- var templateNodeParent = templateNode.parent(),
- hasCompileParent = !!templateNodeParent.length;
- // When transcluding a template that has bindings in the root
- // we don't have a parent and thus need to add the class during linking fn.
- if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);
- return function textInterpolateLinkFn(scope, node) {
- var parent = node.parent();
- if (!hasCompileParent) compile.$$addBindingClass(parent);
- compile.$$addBindingInfo(parent, interpolateFn.expressions);
- scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {
- node[0].nodeValue = value;
- });
- };
- }
- });
- }
- }
- function wrapTemplate(type, template) {
- type = lowercase(type || 'html');
- switch (type) {
- case 'svg':
- case 'math':
- var wrapper = document.createElement('div');
- wrapper.innerHTML = '<'+type+'>'+template+'</'+type+'>';
- return wrapper.childNodes[0].childNodes;
- default:
- return template;
- }
- }
- function getTrustedContext(node, attrNormalizedName) {
- if (attrNormalizedName == "srcdoc") {
- return $sce.HTML;
- }
- var tag = nodeName_(node);
- // maction[xlink:href] can source SVG. It's not limited to <maction>.
- if (attrNormalizedName == "xlinkHref" ||
- (tag == "form" && attrNormalizedName == "action") ||
- (tag != "img" && (attrNormalizedName == "src" ||
- attrNormalizedName == "ngSrc"))) {
- return $sce.RESOURCE_URL;
- }
- }
- function addAttrInterpolateDirective(node, directives, value, name, allOrNothing) {
- var interpolateFn = $interpolate(value, true);
- // no interpolation found -> ignore
- if (!interpolateFn) return;
- if (name === "multiple" && nodeName_(node) === "select") {
- throw $compileMinErr("selmulti",
- "Binding to the 'multiple' attribute is not supported. Element: {0}",
- startingTag(node));
- }
- directives.push({
- priority: 100,
- compile: function() {
- return {
- pre: function attrInterpolatePreLinkFn(scope, element, attr) {
- var $$observers = (attr.$$observers || (attr.$$observers = {}));
- if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {
- throw $compileMinErr('nodomevents',
- "Interpolations for HTML DOM event attributes are disallowed. Please use the " +
- "ng- versions (such as ng-click instead of onclick) instead.");
- }
- // If the attribute was removed, then we are done
- if (!attr[name]) {
- return;
- }
- // we need to interpolate again, in case the attribute value has been updated
- // (e.g. by another directive's compile function)
- interpolateFn = $interpolate(attr[name], true, getTrustedContext(node, name),
- ALL_OR_NOTHING_ATTRS[name] || allOrNothing);
- // if attribute was updated so that there is no interpolation going on we don't want to
- // register any observers
- if (!interpolateFn) return;
- // initialize attr object so that it's ready in case we need the value for isolate
- // scope initialization, otherwise the value would not be available from isolate
- // directive's linking fn during linking phase
- attr[name] = interpolateFn(scope);
- ($$observers[name] || ($$observers[name] = [])).$$inter = true;
- (attr.$$observers && attr.$$observers[name].$$scope || scope).
- $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {
- //special case for class attribute addition + removal
- //so that class changes can tap into the animation
- //hooks provided by the $animate service. Be sure to
- //skip animations when the first digest occurs (when
- //both the new and the old values are the same) since
- //the CSS classes are the non-interpolated values
- if (name === 'class' && newValue != oldValue) {
- attr.$updateClass(newValue, oldValue);
- } else {
- attr.$set(name, newValue);
- }
- });
- }
- };
- }
- });
- }
- /**
- * This is a special jqLite.replaceWith, which can replace items which
- * have no parents, provided that the containing jqLite collection is provided.
- *
- * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes
- * in the root of the tree.
- * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep
- * the shell, but replace its DOM node reference.
- * @param {Node} newNode The new DOM node.
- */
- function replaceWith($rootElement, elementsToRemove, newNode) {
- var firstElementToRemove = elementsToRemove[0],
- removeCount = elementsToRemove.length,
- parent = firstElementToRemove.parentNode,
- i, ii;
- if ($rootElement) {
- for (i = 0, ii = $rootElement.length; i < ii; i++) {
- if ($rootElement[i] == firstElementToRemove) {
- $rootElement[i++] = newNode;
- for (var j = i, j2 = j + removeCount - 1,
- jj = $rootElement.length;
- j < jj; j++, j2++) {
- if (j2 < jj) {
- $rootElement[j] = $rootElement[j2];
- } else {
- delete $rootElement[j];
- }
- }
- $rootElement.length -= removeCount - 1;
- // If the replaced element is also the jQuery .context then replace it
- // .context is a deprecated jQuery api, so we should set it only when jQuery set it
- // http://api.jquery.com/context/
- if ($rootElement.context === firstElementToRemove) {
- $rootElement.context = newNode;
- }
- break;
- }
- }
- }
- if (parent) {
- parent.replaceChild(newNode, firstElementToRemove);
- }
- // TODO(perf): what's this document fragment for? is it needed? can we at least reuse it?
- var fragment = document.createDocumentFragment();
- fragment.appendChild(firstElementToRemove);
- // Copy over user data (that includes Angular's $scope etc.). Don't copy private
- // data here because there's no public interface in jQuery to do that and copying over
- // event listeners (which is the main use of private data) wouldn't work anyway.
- jqLite(newNode).data(jqLite(firstElementToRemove).data());
- // Remove data of the replaced element. We cannot just call .remove()
- // on the element it since that would deallocate scope that is needed
- // for the new node. Instead, remove the data "manually".
- if (!jQuery) {
- delete jqLite.cache[firstElementToRemove[jqLite.expando]];
- } else {
- // jQuery 2.x doesn't expose the data storage. Use jQuery.cleanData to clean up after
- // the replaced element. The cleanData version monkey-patched by Angular would cause
- // the scope to be trashed and we do need the very same scope to work with the new
- // element. However, we cannot just cache the non-patched version and use it here as
- // that would break if another library patches the method after Angular does (one
- // example is jQuery UI). Instead, set a flag indicating scope destroying should be
- // skipped this one time.
- skipDestroyOnNextJQueryCleanData = true;
- jQuery.cleanData([firstElementToRemove]);
- }
- for (var k = 1, kk = elementsToRemove.length; k < kk; k++) {
- var element = elementsToRemove[k];
- jqLite(element).remove(); // must do this way to clean up expando
- fragment.appendChild(element);
- delete elementsToRemove[k];
- }
- elementsToRemove[0] = newNode;
- elementsToRemove.length = 1;
- }
- function cloneAndAnnotateFn(fn, annotation) {
- return extend(function() { return fn.apply(null, arguments); }, fn, annotation);
- }
- function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {
- try {
- linkFn(scope, $element, attrs, controllers, transcludeFn);
- } catch (e) {
- $exceptionHandler(e, startingTag($element));
- }
- }
- }];
- }
- var PREFIX_REGEXP = /^((?:x|data)[\:\-_])/i;
- /**
- * Converts all accepted directives format into proper directive name.
- * All of these will become 'myDirective':
- * my:Directive
- * my-directive
- * x-my-directive
- * data-my:directive
- *
- * Also there is special case for Moz prefix starting with upper case letter.
- * @param name Name to normalize
- */
- function directiveNormalize(name) {
- return camelCase(name.replace(PREFIX_REGEXP, ''));
- }
- /**
- * @ngdoc type
- * @name $compile.directive.Attributes
- *
- * @description
- * A shared object between directive compile / linking functions which contains normalized DOM
- * element attributes. The values reflect current binding state `{{ }}`. The normalization is
- * needed since all of these are treated as equivalent in Angular:
- *
- * ```
- * <span ng:bind="a" ng-bind="a" data-ng-bind="a" x-ng-bind="a">
- * ```
- */
- /**
- * @ngdoc property
- * @name $compile.directive.Attributes#$attr
- *
- * @description
- * A map of DOM element attribute names to the normalized name. This is
- * needed to do reverse lookup from normalized name back to actual name.
- */
- /**
- * @ngdoc method
- * @name $compile.directive.Attributes#$set
- * @kind function
- *
- * @description
- * Set DOM element attribute value.
- *
- *
- * @param {string} name Normalized element attribute name of the property to modify. The name is
- * reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}
- * property to the original name.
- * @param {string} value Value to set the attribute to. The value can be an interpolated string.
- */
- /**
- * Closure compiler type information
- */
- function nodesetLinkingFn(
- /* angular.Scope */ scope,
- /* NodeList */ nodeList,
- /* Element */ rootElement,
- /* function(Function) */ boundTranscludeFn
- ) {}
- function directiveLinkingFn(
- /* nodesetLinkingFn */ nodesetLinkingFn,
- /* angular.Scope */ scope,
- /* Node */ node,
- /* Element */ rootElement,
- /* function(Function) */ boundTranscludeFn
- ) {}
- function tokenDifference(str1, str2) {
- var values = '',
- tokens1 = str1.split(/\s+/),
- tokens2 = str2.split(/\s+/);
- outer:
- for (var i = 0; i < tokens1.length; i++) {
- var token = tokens1[i];
- for (var j = 0; j < tokens2.length; j++) {
- if (token == tokens2[j]) continue outer;
- }
- values += (values.length > 0 ? ' ' : '') + token;
- }
- return values;
- }
- function removeComments(jqNodes) {
- jqNodes = jqLite(jqNodes);
- var i = jqNodes.length;
- if (i <= 1) {
- return jqNodes;
- }
- while (i--) {
- var node = jqNodes[i];
- if (node.nodeType === NODE_TYPE_COMMENT) {
- splice.call(jqNodes, i, 1);
- }
- }
- return jqNodes;
- }