Plato on Github
Report Home
src\ng\compile.js
Maintainability
58.20
Lines of code
2763
Difficulty
130.88
Estimated Errors
17.90
Function weight
By Complexity
By SLOC
'use strict'; /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Any commits to this file should be reviewed with security in mind. * * Changes to this file can potentially create security vulnerabilities. * * An approval from 2 Core members with history of modifying * * this file is required. * * * * Does the change somehow allow for arbitrary javascript to be executed? * * Or allows for someone to change the prototype of built-in objects? * * Or gives undesired access to variables likes document or window? * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* ! 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.$compileProvider#directive directives}. * *
 * **Note:** This document is an in-depth reference of all directive options. * For a gentle introduction to directives with examples of common use cases, * see the {@link guide/directive directive guide}. *
 * * ## Comprehensive Directive API * * There are many different options for a directive. * * The difference resides in the return value of the factory function. * You can either return a "Directive Definition Object" (see below) that defines the directive properties, * or just the `postLink` function (all other properties will have the default values). * *
 * **Best Practice:** It's recommended to use the "directive definition object" form. *
 * * Here's an example directive declared with a Directive Definition Object: * * ```js * var myModule = angular.module(...); * * myModule.directive('directiveName', function factory(injectables) { * var directiveDefinitionObject = { * priority: 0, * template: '<div></div>', // or // function(tElement, tAttrs) { ... }, * // or * // templateUrl: 'directive.html', // or // function(tElement, tAttrs) { ... }, * transclude: false, * restrict: 'A', * templateNamespace: 'html', * scope: false, * controller: function($scope, $element, $attrs, $transclude, otherInjectables) { ... }, * controllerAs: 'stringIdentifier', * bindToController: false, * require: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'], * compile: function compile(tElement, tAttrs, transclude) { * return { * pre: function preLink(scope, iElement, iAttrs, controller) { ... }, * post: function postLink(scope, iElement, iAttrs, controller) { ... } * } * // or * // return function postLink( ... ) { ... } * }, * // or * // link: { * // pre: function preLink(scope, iElement, iAttrs, controller) { ... }, * // post: function postLink(scope, iElement, iAttrs, controller) { ... } * // } * // or * // link: function postLink( ... ) { ... } * }; * return directiveDefinitionObject; * }); * ``` * *
 * **Note:** Any unspecified options will use the default value. You can see the default values below. *
 * * Therefore the above can be simplified as: * * ```js * var myModule = angular.module(...); * * myModule.directive('directiveName', function factory(injectables) { * var directiveDefinitionObject = { * link: function postLink(scope, iElement, iAttrs) { ... } * }; * return directiveDefinitionObject; * // or * // return function postLink(scope, iElement, iAttrs) { ... } * }); * ``` * * * * ### Directive Definition Object * * The directive definition object provides instructions to the {@link ng.$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 recommended 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 $watch) you can use * `=*` or `=*attr` (`=*?` or `=*?attr` if the property is optional). * * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope. * If no `attr` name is specified then the attribute name is assumed to be the same as the * local name. Given `<widget my-attr="count = count + value">` and widget definition of * `scope: { localFn:'&myAttr' }`, then isolate scope property `localFn` will point to * a function wrapper for the `count = count + value` expression. Often it's desirable to * pass data from the isolated scope via an expression to the parent scope, this can be * done by passing a map of local variable names and values into the expression wrapper fn. * For example, if the expression is `increment(amount)` then we can specify the amount value * by calling the `localFn` as `localFn({amount: 22})`. * * * #### `bindToController` * When an isolate scope is used for a component (see above), and `controllerAs` is used, `bindToController: true` will * allow a component to have its properties bound to the controller, rather than to scope. When the controller * is instantiated, the initial values of the isolate scope bindings are already available. * * #### `controller` * Controller constructor function. The controller is instantiated before the * pre-linking phase and it is shared with other directives (see * `require` attribute). This allows the directives to communicate with each other and augment * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals: * * * `$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 (unless no link function * is specified, in which case error checking is skipped). 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` * Identifier name for a reference to the controller in the directive's scope. * This allows the controller to be referenced from 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)` * *
 * **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. *
 *
 * **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 $compile in the postLink function to imperatively compile * a directive's template instead of relying on automatic template compilation via `template` or * `templateUrl` declaration or manual compilation inside the compile function. *
 * *
 * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it * e.g. does not know about the right outer scope. Please use the transclude function that is passed * to the link function instead. *
 * A compile function can have a return value which can be either a function or an object. * * * returning a (post-link) function - is equivalent to registering the linking function via the * `link` property of the config object when the compile function is empty. * * * returning an object with function(s) registered via `pre` and `post` properties - allows you to * control when a linking function should be called during the linking phase. See info about * pre-linking and post-linking functions below. * * * #### `link` * This property is used only if the `compile` property is not defined. * * ```js * function link(scope, iElement, iAttrs, controller, transcludeFn) { ... } * ``` * * The link function is responsible for registering DOM listeners as well as updating the DOM. It is * executed after the template has been cloned. This is where most of the directive logic will be * put. * * * `scope` - {@link ng.$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` - the directive's required controller instance(s) - Instances are shared * among all directives, which allows the directives to use the controllers as a communication * channel. The exact value depends on the directive's `require` property: * * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one * * `string`: the controller instance * * `array`: array of controller instances * * If a required controller cannot be found, and it is optional, the instance is `null`, * otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown. * * Note that you can also require the directive's own controller - it will be made available like * like any other controller. * * * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope. * This is the same as the `$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. * *
 * **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}. *
 * * #### 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. * *
 * 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. *
 * * 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. * *
 * **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. *
 * * 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(); * ``` * *
 * **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 calling `element.remove()` to remove it), * then you are also responsible for calling `$destroy` on the transclusion scope. *
 * * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat} * automatically destroy their transluded clones as necessary so you do not need to worry about this if * you are simply using {@link ngTransclude} to inject the transclusion into your directive. * * * #### Transclusion Scopes * * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it * was taken. * * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look * like this: * * ```html * <div ng-app> * <div isolate> * <div transclusion> * </div> * </div> * </div> * ``` * * The `$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.$observe('ngModel', function(value) { * console.log('ngModel has changed value to ' + value); * }); * } * ``` * * ## Example * *
 * **Note**: Typically directives are registered with `module.directive`. The example below is * to illustrate how `$compile` works. *
 * <example module="compileExample"> <file name="index.html">
 <input ng-model="name">
 <textarea ng-model="html"></textarea>

 </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 - DEPRECATED. * *
 * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it * e.g. will not use the right outer scope. Please pass the transclude function as a * `parentBoundTranscludeFn` to the link function instead. *
 * * @param {number} maxPriority only apply directives lower than given priority (Only effects the * root element(s), not their children) * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template * (a DOM element/tree) to a scope. Where: * * * `scope` - A {@link ng.$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:
 `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. * * * `options` - An optional object hash with linking options. If `options` is provided, then the following * keys may be used to control linking behavior: * * * `parentBoundTranscludeFn` - the transclude function made available to * directives; if given, it will be passed through to the link functions of * directives found in `element` during compilation. * * `transcludeControllers` - an object hash with keys that map controller names * to controller instances; if given, it will make the controllers * available to directives. * * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add * the cloned elements; only needed for transcludes that are allowed to contain non html * elements (e.g. SVG elements). See also the directive.controller property. * * 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, isController) { 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 {3} for directive '{0}'." + " Definition: {... {1}: '{2}' ...}", directiveName, scopeName, definition, (isController ? "controller bindings definition" : "isolate scope definition")); } bindings[scopeName] = { mode: match[1][0], collection: match[2] === '*', optional: match[3] === '?', attrName: match[4] || scopeName }; }); return bindings; } function parseDirectiveBindings(directive, directiveName) { var bindings = { isolateScope: null, bindToController: null }; if (isObject(directive.scope)) { if (directive.bindToController === true) { bindings.bindToController = parseIsolateBindings(directive.scope, directiveName, true); bindings.isolateScope = {}; } else { bindings.isolateScope = parseIsolateBindings(directive.scope, directiveName, false); } } if (isObject(directive.bindToController)) { bindings.bindToController = parseIsolateBindings(directive.bindToController, directiveName, true); } if (isObject(bindings.bindToController)) { var controller = directive.controller; var controllerAs = directive.controllerAs; if (!controller) { // There is no controller, there may or may not be a controllerAs property throw $compileMinErr('noctrl', "Cannot bind to controller without directive '{0}'s controller.", directiveName); } else if (!identifierForController(controller, controllerAs)) { // There is a controller, but no identifier or controllerAs property throw $compileMinErr('noident', "Cannot bind to controller without identifier for directive '{0}'.", directiveName); } } return bindings; } function assertValidDirectiveName(name) { var letter = name.charAt(0); if (!letter || letter !== lowercase(letter)) { throw $compileMinErr('baddir', "Directive name '{0}' is invalid. The first character must be a lowercase letter", name); } if (name !== name.trim()) { throw $compileMinErr('baddir', "Directive name '{0}' is invalid. The name should not contain leading or trailing whitespaces", name); } } /** * @ngdoc method * @name $compileProvider#directive * @kind function * * @description * Register a new directive with the compiler. * * @param {string|Object} name Name of the directive in camel-case (i.e. ngBind which * will match as ng-bind), or an object map of directives where the keys are the * names and the values are the factories. * @param {Function|Array} directiveFactory An injectable directive factory function. See * {@link guide/directive} for more info. * @returns {ng.$compileProvider} Self for chaining. */ this.directive = function registerDirective(name, directiveFactory) { assertNotHasOwnProperty(name, 'directive'); if (isString(name)) { assertValidDirectiveName(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'; var bindings = directive.$$bindings = parseDirectiveBindings(directive, directive.name); if (isObject(bindings.isolateScope)) { directive.$$isolateBindings = bindings.isolateScope; } directive.$$moduleName = directiveFactory.$$moduleName; directives.push(directive); } catch (e) { $exceptionHandler(e); } }); return directives; }]); } hasDirectives[name].push(directiveFactory); } else { forEach(name, reverseParams(registerDirective)); } return this; }; /** * @ngdoc method * @name $compileProvider#aHrefSanitizationWhitelist * @kind function * * @description * Retrieves or overrides the default regular expression that is used for whitelisting of safe * urls during a[href] sanitization. * * The sanitization is a security measure aimed at preventing XSS attacks via html links. * * Any url about to be assigned to a[href] via data-binding is first normalized and turned into * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist` * regular expression. If a match is found, the original url is written into the dom. Otherwise, * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM. * * @param {RegExp=} regexp New regexp to whitelist urls with. * @returns {RegExp|ng.$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 disable 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.$$element = element; }; Attributes.prototype = { /** * @ngdoc method * @name $compile.directive.Attributes#$normalize * @kind function * * @description * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or * `data-`) to its normalized, camelCase form. * * Also there is special case for Moz prefix starting with upper case letter. * * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives} * * @param {string} name Name to normalize */ $normalize: directiveNormalize, /** * @ngdoc method * @name $compile.directive.Attributes#$addClass * @kind function * * @description * Adds the CSS class value specified by the classVal parameter to the element. If animations * are enabled then an animation will be triggered for the class addition. * * @param {string} classVal The className value that will be added to the element */ $addClass: function(classVal) { if (classVal && classVal.length > 0) { $animate.addClass(this.$$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 $$addScopeClass($element, isolated) { safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope'); } : noop; return compile; //================================ function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) { if (!($compileNodes instanceof jqLite)) { // jquery always rewraps, whereas we need to preserve the original selector so that we can // modify it. $compileNodes = jqLite($compileNodes); } // We can not compile top level text elements since text nodes can be merged and we will // not be able to attach scope data to them, so we will wrap them in  forEach($compileNodes, function(node, index) { if (node.nodeType == NODE_TYPE_TEXT && node.nodeValue.match(/\S+/) /* non-empty */ ) { $compileNodes[index] = jqLite(node).wrap('').parent()[0]; } }); var compositeLinkFn = compileNodes($compileNodes, transcludeFn, $compileNodes, maxPriority, ignoreDirective, previousCompileContext); compile.$$addScopeClass($compileNodes); var namespace = null; return function publicLinkFn(scope, cloneConnectFn, options) { assertArg(scope, 'scope'); options = options || {}; var parentBoundTranscludeFn = options.parentBoundTranscludeFn, transcludeControllers = options.transcludeControllers, futureParentElement = options.futureParentElement; // When `parentBoundTranscludeFn` is passed, it is a // `controllersBoundTransclude` function (it was previously passed // as `transclude` to directive.link) so we must unwrap it to get // its `boundTranscludeFn` if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) { parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude; } 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... $linkNode = jqLite( wrapTemplate(namespace, jqLite('
').append($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); var destroyBindings = nodeLinkFn.$$destroyBindings; if (destroyBindings) { nodeLinkFn.$$destroyBindings = null; childScope.$on('$destroyed', destroyBindings); } } else { childScope = scope; } if (nodeLinkFn.transcludeOnThisElement) { childBoundTranscludeFn = createBoundTranscludeFn( scope, nodeLinkFn.transclude, parentBoundTranscludeFn); } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) { childBoundTranscludeFn = parentBoundTranscludeFn; } else if (!parentBoundTranscludeFn && transcludeFn) { childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn); } else { childBoundTranscludeFn = null; } nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn, nodeLinkFn); } else if (childLinkFn) { childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn); } } } } function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) { var boundTranscludeFn = function(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) { if (!transcludedScope) { transcludedScope = scope.$new(false, containingScope); transcludedScope.$$transcluded = true; } return transcludeFn(transcludedScope, cloneFn, { parentBoundTranscludeFn: previousBoundTranscludeFn, transcludeControllers: controllers, futureParentElement: 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 = name.replace(PREFIX_REGEXP, '') .substr(8).replace(/_(.)/g, function(match, letter) { return letter.toUpperCase(); }); } 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 (isObject(className)) { // Maybe SVGAnimatedString className = className.animVal; } 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 */ if (msie === 11) { // Workaround for #11781 while (node.parentNode && node.nextSibling && node.nextSibling.nodeType === NODE_TYPE_TEXT) { node.nodeValue = node.nodeValue + node.nextSibling.nodeValue; node.parentNode.removeChild(node.nextSibling); } } 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 = previousCompileContext.newScopeDirective, controllerDirectives = previousCompileContext.controllerDirectives, 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 || createMap(); 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), $compileNode, templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, { controllerDirectives: controllerDirectives, newScopeDirective: (newScopeDirective !== directive) && newScopeDirective, newIsolateScopeDirective: newIsolateScopeDirective, templateDirective: templateDirective, nonTlbTranscludeDirective: nonTlbTranscludeDirective }); ii = directives.length; } else if (directive.compile) { try { linkFn = directive.compile($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.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; if (isString(require)) { var match = require.match(REQUIRE_PREFIX_REGEXP); var name = require.substring(match[0].length); var inheritType = match[1] || match[3]; var optional = match[2] === '?'; //If only parents then start at the parent element if (inheritType === '^^') { $element = $element.parent(); //Otherwise attempt getting the controller from elementControllers in case //the element is transcluded (and has no data) and to avoid .data if possible } else { value = elementControllers && elementControllers[name]; value = value && value.instance; } if (!value) { var dataName = '$' + name + 'Controller'; value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName); } if (!value && !optional) { throw $compileMinErr('ctreq', "Controller '{0}', required by directive '{1}', can't be found!", name, directiveName); } } else if (isArray(require)) { value = []; for (var i = 0, ii = require.length; i < ii; i++) { value[i] = getControllers(directiveName, require[i], $element, elementControllers); } } return value || null; } function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope) { var elementControllers = createMap(); for (var controllerKey in controllerDirectives) { var directive = controllerDirectives[controllerKey]; var locals = { $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope, $element: $element, $attrs: attrs, $transclude: transcludeFn }; var controller = directive.controller; if (controller == '@') { controller = attrs[directive.name]; } var controllerInstance = $controller(controller, locals, true, directive.controllerAs); // For directives with element transclusion the element is a comment, // but jQuery .data doesn't support attaching data to comment nodes as it's hard to // clean up (http://bugs.jquery.com/ticket/8335). // Instead, we save the controllers for the element in a local hash and attach to .data // later, once we have the actual element. elementControllers[directive.name] = controllerInstance; if (!hasElementTranscludeDirective) { $element.data('$' + directive.name + 'Controller', controllerInstance.instance); } } return elementControllers; } function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn, thisLinkFn) { var i, ii, linkFn, controller, isolateScope, elementControllers, transcludeFn, $element, attrs; if (compileNode === linkNode) { attrs = templateAttrs; $element = templateAttrs.$$element; } else { $element = jqLite(linkNode); attrs = new Attributes($element, templateAttrs); } if (newIsolateScopeDirective) { isolateScope = scope.$new(true); } if (boundTranscludeFn) { // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn` // is later passed as `parentBoundTranscludeFn` to `publicLinkFn` transcludeFn = controllersBoundTransclude; transcludeFn.$$boundTransclude = boundTranscludeFn; } if (controllerDirectives) { elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope); } if (newIsolateScopeDirective) { // Initialize isolate scope bindings for new isolate scope directive. compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective || templateDirective === newIsolateScopeDirective.$$originalDirective))); compile.$$addScopeClass($element, true); isolateScope.$$isolateBindings = newIsolateScopeDirective.$$isolateBindings; initializeDirectiveBindings(scope, attrs, isolateScope, isolateScope.$$isolateBindings, newIsolateScopeDirective, isolateScope); } if (elementControllers) { // Initialize bindToController bindings for new/isolate scopes var scopeDirective = newIsolateScopeDirective || newScopeDirective; var bindings; var controllerForBindings; if (scopeDirective && elementControllers[scopeDirective.name]) { bindings = scopeDirective.$$bindings.bindToController; controller = elementControllers[scopeDirective.name]; if (controller && controller.identifier && bindings) { controllerForBindings = controller; thisLinkFn.$$destroyBindings = initializeDirectiveBindings(scope, attrs, controller.instance, bindings, scopeDirective); } } for (i in elementControllers) { controller = elementControllers[i]; var controllerResult = controller(); if (controllerResult !== controller.instance) { // If the controller constructor has a return value, overwrite the instance // from setupControllers and update the element data controller.instance = controllerResult; $element.data('$' + i + 'Controller', controllerResult); if (controller === controllerForBindings) { // Remove and re-install bindToController bindings thisLinkFn.$$destroyBindings(); thisLinkFn.$$destroyBindings = initializeDirectiveBindings(scope, attrs, controllerResult, bindings, scopeDirective); } } } } // PRELINKING for (i = 0, ii = preLinkFns.length; i < ii; i++) { linkFn = preLinkFns[i]; invokeLinkFn(linkFn, linkFn.isolateScope ? isolateScope : scope, $element, attrs, linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers), transcludeFn ); } // RECURSION // We only pass the isolate scope, if the isolate directive has a template, // otherwise the child elements do not belong to the isolate directive. var scopeToChild = scope; if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) { scopeToChild = isolateScope; } childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn); // POSTLINKING for (i = postLinkFns.length - 1; i >= 0; i--) { linkFn = postLinkFns[i]; invokeLinkFn(linkFn, linkFn.isolateScope ? isolateScope : scope, $element, attrs, linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers), transcludeFn ); } // This is the function that is injected as `$transclude`. // Note: all arguments are optional! function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement) { var transcludeControllers; // No scope passed in: if (!isScope(scope)) { futureParentElement = cloneAttachFn; cloneAttachFn = scope; scope = undefined; } if (hasElementTranscludeDirective) { transcludeControllers = elementControllers; } if (!futureParentElement) { futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element; } return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild); } } } function markDirectivesAsIsolate(directives) { // mark all directives as needing isolate scope. for (var j = 0, jj = directives.length; j < jj; j++) { directives[j] = inherit(directives[j], {$$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.$$element; // reapply the old attributes to the new element forEach(dst, function(value, key) { if (key.charAt(0) != '$') { if (src[key] && src[key] !== value) { value += (key === 'style' ? ';' : ' ') + src[key]; } dst.$set(key, value, true, srcAttr[key]); } }); // copy the new attributes on the old attrs object forEach(src, function(value, key) { if (key == 'class') { safeAddClass($element, value); dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value; } else if (key == 'style') { $element.attr('style', $element.attr('style') + ';' + value); dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value; // `dst` will never contain hasOwnProperty as DOM parser won't let it. // You will get an "InvalidCharacterError: DOM Exception 5" error if you // have an attribute like "has-own-property" or "data-has-own-property", etc. } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) { dst[key] = value; dstAttr[key] = srcAttr[key]; } }); } function compileTemplateUrl(directives, $compileNode, tAttrs, $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) { var linkQueue = [], afterTemplateNodeLinkFn, afterTemplateChildLinkFn, beforeTemplateCompileNode = $compileNode[0], origAsyncDirective = directives.shift(), derivedSyncDirective = inherit(origAsyncDirective, { templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective }), templateUrl = (isFunction(origAsyncDirective.templateUrl)) ? origAsyncDirective.templateUrl($compileNode, tAttrs) : origAsyncDirective.templateUrl, templateNamespace = origAsyncDirective.templateNamespace; $compileNode.empty(); $templateRequest(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.$$destroyed) continue; if (beforeTemplateLinkNode !== beforeTemplateCompileNode) { var oldClasses = beforeTemplateLinkNode.className; if (!(previousCompileContext.hasElementTranscludeDirective && origAsyncDirective.replace)) { // it was cloned therefore we have to clone as well. linkNode = jqLiteClone(compileNode); } replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode); // Copy in CSS classes from original node safeAddClass(jqLite(linkNode), oldClasses); } if (afterTemplateNodeLinkFn.transcludeOnThisElement) { childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn); } else { childBoundTranscludeFn = boundTranscludeFn; } afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement, childBoundTranscludeFn, afterTemplateNodeLinkFn); } linkQueue = null; }); return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) { var childBoundTranscludeFn = boundTranscludeFn; if (scope.$$destroyed) return; if (linkQueue) { linkQueue.push(scope, node, rootElement, childBoundTranscludeFn); } else { if (afterTemplateNodeLinkFn.transcludeOnThisElement) { childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn); } afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn, afterTemplateNodeLinkFn); } }; } /** * 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) { function wrapModuleNameIfDefined(moduleName) { return moduleName ? (' (module: ' + moduleName + ')') : ''; } if (previousDirective) { throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}', previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName), directive.name, wrapModuleNameIfDefined(directive.$$moduleName), 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.$$addBindingInfo(parent, interpolateFn.expressions); scope.$watch(interpolateFn, function interpolateFnWatchAction(value) { node[0].nodeValue = value; }); }; } }); } } function wrapTemplate(type, template) { type = lowercase(type || 'html'); switch (type) { case 'svg': case 'math': var wrapper = document.createElement('div'); wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>'; return wrapper.childNodes[0].childNodes; default: return template; } } function getTrustedContext(node, attrNormalizedName) { if (attrNormalizedName == "srcdoc") { return $sce.HTML; } var tag = nodeName_(node); // maction[xlink:href] can source SVG. It's not limited to <maction>. if (attrNormalizedName == "xlinkHref" || (tag == "form" && attrNormalizedName == "action") || (tag != "img" && (attrNormalizedName == "src" || attrNormalizedName == "ngSrc"))) { return $sce.RESOURCE_URL; } } function addAttrInterpolateDirective(node, directives, value, name, allOrNothing) { var trustedContext = getTrustedContext(node, name); allOrNothing = ALL_OR_NOTHING_ATTRS[name] || allOrNothing; var interpolateFn = $interpolate(value, true, trustedContext, allOrNothing); // no interpolation found -> ignore if (!interpolateFn) return; if (name === "multiple" && nodeName_(node) === "select") { throw $compileMinErr("selmulti", "Binding to the 'multiple' attribute is not supported. Element: {0}", startingTag(node)); } directives.push({ priority: 100, compile: function() { return { pre: function attrInterpolatePreLinkFn(scope, element, attr) { var $$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 has changed since last $interpolate()ed var newValue = attr[name]; if (newValue !== value) { // we need to interpolate again since the attribute value has been updated // (e.g. by another directive's compile function) // ensure unset/empty values make interpolateFn falsy interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing); value = newValue; } // 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); if (jqLite.hasData(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)); } } // Set up $watches for isolate scope and controller bindings. This process // only occurs for isolate scopes and new scopes with controllerAs. function initializeDirectiveBindings(scope, attrs, destination, bindings, directive, newScope) { var onNewScopeDestroyed; forEach(bindings, function(definition, scopeName) { var attrName = definition.attrName, optional = definition.optional, mode = definition.mode, // @, =, or & lastValue, parentGet, parentSet, compare; if (!hasOwnProperty.call(attrs, attrName)) { // In the case of user defined a binding with the same name as a method in Object.prototype but didn't set // the corresponding attribute. We need to make sure subsequent code won't access to the prototype function attrs[attrName] = undefined; } switch (mode) { case '@': if (!attrs[attrName] && !optional) { destination[scopeName] = undefined; } attrs.$observe(attrName, function(value) { destination[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 destination[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 = destination[scopeName] = parentGet(scope); throw $compileMinErr('nonassign', "Expression '{0}' used with directive '{1}' is non-assignable!", attrs[attrName], directive.name); }; lastValue = destination[scopeName] = parentGet(scope); var parentValueWatch = function parentValueWatch(parentValue) { if (!compare(parentValue, destination[scopeName])) { // we are out of sync and need to copy if (!compare(parentValue, lastValue)) { // parent changed and it has precedence destination[scopeName] = parentValue; } else { // if the parent can be assigned then do so parentSet(scope, parentValue = destination[scopeName]); } } return lastValue = parentValue; }; parentValueWatch.$stateful = true; var unwatch; if (definition.collection) { unwatch = scope.$watchCollection(attrs[attrName], parentValueWatch); } else { unwatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal); } onNewScopeDestroyed = (onNewScopeDestroyed || []); onNewScopeDestroyed.push(unwatch); break; case '&': parentGet = $parse(attrs[attrName]); // Don't assign noop to destination if expression is not valid if (parentGet === noop && optional) break; destination[scopeName] = function(locals) { return parentGet(scope, locals); }; break; } }); var destroyBindings = onNewScopeDestroyed ? function destroyBindings() { for (var i = 0, ii = onNewScopeDestroyed.length; i < ii; ++i) { onNewScopeDestroyed[i](); } } : noop; if (newScope && destroyBindings !== noop) { newScope.$on('$destroy', destroyBindings); return noop; } return destroyBindings; } }]; } var PREFIX_REGEXP = /^((?:x|data)[\:\-_])/i; /** * Converts all accepted directives format into proper directive name. * @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; }