Version 3.18.1
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Router Class

Extends Base
Defined in: app/js/router.js:40
Module: router
Parent Module: app

Available since 3.4.0

Provides URL-based routing using HTML5 pushState() or the location hash.

This makes it easy to wire up route handlers for different application states while providing full back/forward navigation support and bookmarkable, shareable URLs.

Constructor

Router

(
  • [config]
)

Defined in app/js/router.js:40

Available since 3.4.0

Parameters:

  • [config] Object optional

    Config properties.

    • [html5] Boolean optional

      Overrides the default capability detection and forces this router to use (true) or not use (false) HTML5 history.

    • [root=''] String optional

      Root path from which all routes should be evaluated.

    • [routes=[] Array optional

      Array of route definition objects.

Item Index

Events

Methods

_addAttrs

(
  • cfgs
  • values
  • lazy
)
private

Implementation behind the public addAttrs method.

This method is invoked directly by get if it encounters a scenario in which an attribute's valueFn attempts to obtain the value an attribute in the same group of attributes, which has not yet been added (on demand initialization).

Parameters:

  • cfgs Object

    An object with attribute name/configuration pairs.

  • values Object

    An object with attribute name/value pairs, defining the initial values to apply. Values defined in the cfgs argument will be over-written by values in this argument unless defined as read only.

  • lazy Boolean

    Whether or not to delay the intialization of these attributes until the first call to get/set. Individual attributes can over-ride this behavior by defining a lazyAdd configuration property in their configuration. See addAttr.

_addLazyAttr

(
  • name
  • [lazyCfg]
)
private

Finishes initializing an attribute which has been lazily added.

Parameters:

  • name Object

    The name of the attribute

  • [lazyCfg] Object optional

    Optional config hash for the attribute. This is added for performance along the critical path, where the calling method has already obtained lazy config from state.

_addOutOfOrder

(
  • name
  • cfg
)
private

Utility method used by get/set to add attributes encountered out of order when calling addAttrs().

For example, if:

this.addAttrs({
                 foo: {
                     setter: function() {
                        // make sure this bar is available when foo is added
                        this.get("bar");
                     }
                 },
                 bar: {
                     value: ...
                 }
            });

Parameters:

  • name String

    attribute name

  • cfg Object

    attribute configuration

_afterHistoryChange

(
  • e
)
protected

Handles history:change and hashchange events.

Parameters:

_aggregateAttrs

(
  • allAttrs
)
Object private

A helper method, used by _initHierarchyData to aggregate attribute configuration across the instances class hierarchy.

The method will protect the attribute configuration value to protect the statically defined default value in ATTRS if required (if the value is an object literal, array or the attribute configuration has cloneDefaultValue set to shallow or deep).

Parameters:

  • allAttrs Array

    An array of ATTRS definitions across classes in the hierarchy (subclass first, Base last)

Returns:

Object:

The aggregate set of ATTRS definitions for the instance

_attrCfgHash

() private

Utility method to define the attribute hash used to filter/whitelist property mixes for this class for iteration performance reasons.

_baseDestroy

() private

Internal destroy implementation for BaseCore

_baseInit

() private

Internal initialization implementation for BaseCore

_cloneDefaultValue

(
  • cfg
)
private

This method assumes that the value has already been checked to be an object. Since it's on a critical path, we don't want to re-do the check.

Parameters:

_decode

(
  • string
)
String protected

Wrapper around decodeURIComponent that also converts + chars into spaces.

Parameters:

  • string String

    String to decode.

Returns:

String:

Decoded string.

_defAttrChangeFn

(
  • e
  • eventFastPath
)
private

Default function for attribute change events.

Parameters:

  • e EventFacade

    The event object for attribute change events.

  • eventFastPath Boolean

    Whether or not we're using this as a fast path in the case of no listeners or not

_defDestroyFn

(
  • e
)
protected

Default destroy event handler

Parameters:

_defInitFn

(
  • e
)
protected

Default init event handler

Parameters:

  • e EventFacade

    Event object, with a cfg property which refers to the configuration object passed to the constructor.

_defReadyFn

(
  • e
)
protected

Default handler for the ready event.

Parameters:

_dequeue

() protected chainable

Shifts the topmost _save() call off the queue and executes it. Does nothing if the queue is empty.

_destroyHierarchy

() private

Destroys the class hierarchy for this instance by invoking the destructor method on the prototype of each class in the hierarchy.

_dispatch

(
  • req
  • res
)
protected chainable

Dispatches to the first route handler that matches the specified path.

If called before the ready event has fired, the dispatch will be aborted. This ensures normalized behavior between Chrome (which fires a popstate event on every pageview) and other browsers (which do not).

Parameters:

_filterAdHocAttrs

(
  • allAttrs
  • userVals
)
Object private

Parameters:

  • allAttrs Object

    The set of all attribute configurations for this instance. Attributes will be removed from this set, if they belong to the filtered class, so that by the time all classes are processed, allCfgs will be empty.

  • userVals Object

    The config object passed in by the user, from which adhoc attrs are to be filtered.

Returns:

Object:

The set of adhoc attributes passed in, in the form of an object with attribute name/configuration pairs.

_fireAttrChange

(
  • attrName
  • subAttrName
  • currVal
  • newVal
  • opts
  • [cfg]
)
private

Utility method to help setup the event payload and fire the attribute change event.

Parameters:

  • attrName String

    The name of the attribute

  • subAttrName String

    The full path of the property being changed, if this is a sub-attribute value being change. Otherwise null.

  • currVal Any

    The current value of the attribute

  • newVal Any

    The new value of the attribute

  • opts Object

    Any additional event data to mix into the attribute change event's event facade.

  • [cfg] Object optional

    The attribute config stored in State, if already available.

_getAttr

(
  • name
)
Any protected chainable

Provides the common implementation for the public get method, allowing Attribute hosts to over-ride either method.

See get for argument details.

Parameters:

  • name String

    The name of the attribute.

Returns:

Any:

The value of the attribute.

_getAttrCfg

(
  • name
)
Object protected

Returns an object with the configuration properties (and value) for the given attribute. If attrName is not provided, returns the configuration properties for all attributes.

Parameters:

  • name String

    Optional. The attribute name. If not provided, the method will return the configuration for all attributes.

Returns:

Object:

The configuration properties for the given attribute, or all attributes.

_getAttrCfgs

() Object protected

Returns an aggregated set of attribute configurations, by traversing the class hierarchy.

Returns:

Object:

The hash of attribute configurations, aggregated across classes in the hierarchy This value is cached the first time the method, or _getClasses, is invoked. Subsequent invocations return the cached value.

_getAttrInitVal

(
  • attr
  • cfg
  • initValues
)
Any private

Returns the initial value of the given attribute from either the default configuration provided, or the over-ridden value if it exists in the set of initValues provided and the attribute is not read-only.

Parameters:

  • attr String

    The name of the attribute

  • cfg Object

    The attribute configuration object

  • initValues Object

    The object with simple and complex attribute name/value pairs returned from _normAttrVals

Returns:

Any:

The initial value of the attribute.

_getAttrs

(
  • attrs
)
Object protected

Implementation behind the public getAttrs method, to get multiple attribute values.

Parameters:

  • attrs String[] | Boolean

    Optional. An array of attribute names. If omitted, all attribute values are returned. If set to true, all attributes modified from their initial values are returned.

Returns:

Object:

An object with attribute name/value pairs.

_getClasses

() Function[] protected

Returns the class hierarchy for this object, with BaseCore being the last class in the array.

Returns:

Function[]:

An array of classes (constructor functions), making up the class hierarchy for this object. This value is cached the first time the method, or _getAttrCfgs, is invoked. Subsequent invocations return the cached value.

_getFullType

(
  • type
)
String private

Returns the fully qualified type, given a short type string. That is, returns "foo:bar" when given "bar" if "foo" is the configured prefix.

NOTE: This method, unlike _getType, does no checking of the value passed in, and is designed to be used with the low level _publish() method, for critical path implementations which need to fast-track publish for performance reasons.

Parameters:

  • type String

    The short type to prefix

Returns:

String:

The prefixed type, if a prefix is set, otherwise the type passed in

_getHashPath

(
  • [hash]
)
String protected

Returns the resolved path from the hash fragment, or an empty string if the hash is not path-like.

Parameters:

  • [hash] String optional

    Hash fragment to resolve into a path. By default this will be the hash from the current URL.

Returns:

String:

Current hash path, or an empty string if the hash is empty.

_getInstanceAttrCfgs

(
  • allCfgs
)
Object private

A helper method used to isolate the attrs config for this instance to pass to addAttrs, from the static cached ATTRS for the class.

Parameters:

  • allCfgs Object

    The set of all attribute configurations for this instance. Attributes will be removed from this set, if they belong to the filtered class, so that by the time all classes are processed, allCfgs will be empty.

Returns:

Object:

The set of attributes to be added for this instance, suitable for passing through to addAttrs.

_getOrigin

() String protected

Gets the location origin (i.e., protocol, host, and port) as a URL.

Returns:

String:

Location origin (i.e., protocol, host, and port).

Example:

http://example.com

_getParams

() Object protected

Defined in app/js/router.js:932

Available since 3.12.0

Getter for the params attribute.

Returns:

Object:

Mapping of param handlers: name -> RegExp | Function.

_getParamValues

(
  • route
  • path
)
Boolean | Array | Object protected

Defined in app/js/router.js:944

Available since 3.16.0

Gets the param values for the specified route and path, suitable to use form req.params.

Note: This method will return false if a named param handler rejects a param value.

Parameters:

  • route Object

    The route to get param values for.

  • path String

    The route path (root removed) that provides the param values.

Returns:

Boolean | Array | Object:

The collection of processed param values. Either a hash of name -> value for named params processed by this router's param handlers, or an array of matches for a route with unnamed params. If a named param handler rejects a value, then false will be returned.

_getPath

() String protected

Gets the current route path.

Returns:

String:

Current route path.

_getPathRoot

() String protected

Defined in app/js/router.js:1038

Available since 3.5.0

Returns the current path root after popping off the last path segment, making it useful for resolving other URL paths against.

The path root will always begin and end with a '/'.

Returns:

String:

The URL's path root.

_getQuery

() String protected

Gets the current route query string.

Returns:

String:

Current route query string.

_getRegex

(
  • path
  • keys
)
RegExp protected

Creates a regular expression from the given route specification. If path is already a regex, it will be returned unmodified.

Parameters:

  • path String | RegExp

    Route path specification.

  • keys Array

    Array reference to which route parameter names will be added.

Returns:

RegExp:

Route regex.

_getRequest

(
  • src
)
Object protected

Gets a request object that can be passed to a route handler.

Parameters:

  • src String

    What initiated the URL change and need for the request.

Returns:

Object:

Request object.

_getResponse

(
  • req
)
Object protected

Gets a response object that can be passed to a route handler.

Parameters:

Returns:

Object:

Response Object.

_getRoutes

() Object[] protected

Getter for the routes attribute.

Returns:

Object[]:

Array of route objects.

_getStateVal

(
  • name
  • [cfg]
)
Any private

Gets the stored value for the attribute, from either the internal state object, or the state proxy if it exits

Parameters:

  • name String

    The name of the attribute

  • [cfg] Object optional

    Optional config hash for the attribute. This is added for performance along the critical path, where the calling method has already obtained the config from state.

Returns:

Any:

The stored value of the attribute

_getType

() private

If the instance has a prefix attribute and the event type is not prefixed, the instance prefix is applied to the supplied type.

_getURL

() String protected

Gets the current full URL.

Returns:

String:

URL.

_hasPotentialSubscribers

(
  • fullType
)
Boolean private

Parameters:

  • fullType String

    The fully prefixed type name

Returns:

Boolean:

Whether the event has potential subscribers or not

_hasSameOrigin

(
  • url
)
Boolean protected

Returns true when the specified url is from the same origin as the current URL; i.e., the protocol, host, and port of the URLs are the same.

All host or path relative URLs are of the same origin. A scheme-relative URL is first prefixed with the current scheme before being evaluated.

Parameters:

  • url String

    URL to compare origin with the current URL.

Returns:

Boolean:

Whether the URL has the same origin of the current URL.

_initAttrHost

(
  • attrs
  • values
  • lazy
)
private

Constructor logic for attributes. Initializes the host state, and sets up the inital attributes passed to the constructor.

Parameters:

  • attrs Object

    The attributes to add during construction (passed through to addAttrs). These can also be defined on the constructor being augmented with Attribute by defining the ATTRS property on the constructor.

  • values Object

    The initial attribute values to apply (passed through to addAttrs). These are not merged/cloned. The caller is responsible for isolating user provided values if required.

  • lazy Boolean

    Whether or not to add attributes lazily (passed through to addAttrs).

_initAttribute

() private

Inherited from BaseObservable but overwritten in base/js/BaseCore.js:309

Initializes AttributeCore

_initAttrs

(
  • attrs
  • values
  • lazy
)
protected

Utility method to set up initial attributes defined during construction, either through the constructor.ATTRS property, or explicitly passed in.

Parameters:

  • attrs Object

    The attributes to add during construction (passed through to addAttrs). These can also be defined on the constructor being augmented with Attribute by defining the ATTRS property on the constructor.

  • values Object

    The initial attribute values to apply (passed through to addAttrs). These are not merged/cloned. The caller is responsible for isolating user provided values if required.

  • lazy Boolean

    Whether or not to add attributes lazily (passed through to addAttrs).

_initBase

(
  • config
)
private

Internal construction logic for BaseCore.

Parameters:

  • config Object

    The constructor configuration object

_initHierarchy

(
  • userVals
)
private

Initializes the class hierarchy for the instance, which includes initializing attributes for each class defined in the class's static ATTRS property and invoking the initializer method on the prototype of each class in the hierarchy.

Parameters:

  • userVals Object

    Object with configuration property name/value pairs

_initHierarchyData

() private

A helper method used by _getClasses and _getAttrCfgs, which determines both the array of classes and aggregate set of attribute configurations across the class hierarchy for the instance.

_isLazyAttr

(
  • name
)
Boolean private

Checks whether or not the attribute is one which has been added lazily and still requires initialization.

Parameters:

  • name String

    The name of the attribute

Returns:

Boolean:

true if it's a lazily added attribute, false otherwise.

_joinURL

(
  • url
)
String protected

Joins the root URL to the specified url, normalizing leading/trailing / characters.

Parameters:

  • url String

    URL to append to the root URL.

Returns:

String:

Joined URL.

Example:

router.set('root', '/foo');
            router._joinURL('bar');  // => '/foo/bar'
            router._joinURL('/bar'); // => '/foo/bar'
            
            router.set('root', '/foo/');
            router._joinURL('bar');  // => '/foo/bar'
            router._joinURL('/bar'); // => '/foo/bar'

_monitor

(
  • what
  • eventType
  • o
)
private

This is the entry point for the event monitoring system. You can monitor 'attach', 'detach', 'fire', and 'publish'. When configured, these events generate an event. click -> click_attach, click_detach, click_publish -- these can be subscribed to like other events to monitor the event system. Inividual published events can have monitoring turned on or off (publish can't be turned off before it it published) by setting the events 'monitor' config.

Parameters:

  • what String

    'attach', 'detach', 'fire', or 'publish'

  • eventType String | CustomEvent

    The prefixed name of the event being monitored, or the CustomEvent object.

  • o Object

    Information about the event interaction, such as fire() args, subscription category, publish config

_normalizePath

(
  • path
)
String protected

Defined in app/js/router.js:1234

Available since 3.5.0

Returns a normalized path, ridding it of any '..' segments and properly handling leading and trailing slashes.

Parameters:

  • path String

    URL path to normalize.

Returns:

String:

Normalized path.

_normAttrVals

(
  • valueHash
)
Object private

Utility method to normalize attribute values. The base implementation simply merges the hash to protect the original.

Parameters:

  • valueHash Object

    An object with attribute name/value pairs

Returns:

Object:

An object literal with 2 properties - "simple" and "complex", containing simple and complex attribute values respectively keyed by the top level attribute name, or null, if valueHash is falsey.

_parseQuery

(
  • query
)
Object protected

Parses a URL query string into a key/value hash. If Y.QueryString.parse is available, this method will be an alias to that.

Parameters:

  • query String

    Query string to parse.

Returns:

Object:

Hash of key/value pairs for query parameters.

_parseType

() private

Returns an array with the detach key (if provided), and the prefixed event name from _getType Y.on('detachcategory| menu:click', fn)

_pathHasRoot

(
  • root
  • path
)
Boolean protected

Defined in app/js/router.js:1304

Available since 3.13.0

Returns true when the specified path is semantically within the specified root path.

If the root does not end with a trailing slash ("/"), one will be added before the path is evaluated against the root path.

Parameters:

  • root String

    Root path used to evaluate whether the specificed path is semantically within. A trailing slash ("/") will be added if it does not already end with one.

  • path String

    Path to evaluate for containing the specified root.

Returns:

Boolean:

Whether or not the path is semantically within the root path.

Example:

this._pathHasRoot('/app',  '/app/foo'); // => true
            this._pathHasRoot('/app/', '/app/foo'); // => true
            this._pathHasRoot('/app/', '/app/');    // => true
            
            this._pathHasRoot('/app',  '/foo/bar'); // => false
            this._pathHasRoot('/app/', '/foo/bar'); // => false
            this._pathHasRoot('/app/', '/app');     // => false
            this._pathHasRoot('/app',  '/app');     // => false

_preInitEventCfg

(
  • config
)
private

Handles the special on, after and target properties which allow the user to easily configure on and after listeners as well as bubble targets during construction, prior to init.

Parameters:

  • config Object

    The user configuration object

_protectAttrs

(
  • attrs
)
Object deprecated protected

Inherited from AttributeCore: attribute/js/AttributeCore.js:901

Deprecated: Use `AttributeCore.protectAttrs()` or `Attribute.protectAttrs()` which are the same static utility method.

Utility method to protect an attribute configuration hash, by merging the entire object and the individual attr config objects.

Parameters:

  • attrs Object

    A hash of attribute to configuration object pairs.

Returns:

Object:

A protected version of the attrs argument.

_publish

(
  • fullType
  • etOpts
  • ceOpts
)
CustomEvent private

The low level event publish implementation. It expects all the massaging to have been done outside of this method. e.g. the type to fullType conversion. It's designed to be a fast path publish, which can be used by critical code paths to improve performance.

Parameters:

  • fullType String

    The prefixed type of the event to publish.

  • etOpts Object

    The EventTarget specific configuration to mix into the published event.

  • ceOpts Object

    The publish specific configuration to mix into the published event.

Returns:

CustomEvent:

The published event. If called without etOpts or ceOpts, this will be the default CustomEvent instance, and can be configured independently.

_queue

() protected chainable

Queues up a _save() call to run after all previously-queued calls have finished.

This is necessary because if we make multiple _save() calls before the first call gets dispatched, then both calls will dispatch to the last call's URL.

All arguments passed to _queue() will be passed on to _save() when the queued function is executed.

_resolvePath

(
  • path
)
String protected

Defined in app/js/router.js:1381

Available since 3.5.0

Returns the normalized result of resolving the path against the current path. Falsy values for path will return just the current path.

Parameters:

  • path String

    URL path to resolve.

Returns:

String:

Resolved path.

_resolveURL

(
  • url
)
String protected

Defined in app/js/router.js:1403

Available since 3.5.0

Resolves the specified URL against the current URL.

This method resolves URLs like a browser does and will always return an absolute URL. When the specified URL is already absolute, it is assumed to be fully resolved and is simply returned as is. Scheme-relative URLs are prefixed with the current protocol. Relative URLs are giving the current URL's origin and are resolved and normalized against the current path root.

Parameters:

Returns:

String:

Resolved URL.

_save

(
  • [url]
  • [replace=false]
)
protected chainable

Saves a history entry using either pushState() or the location hash.

This method enforces the same-origin security constraint; attempting to save a url that is not from the same origin as the current URL will result in an error.

Parameters:

  • [url] String optional

    URL for the history entry.

  • [replace=false] Boolean optional

    If true, the current history entry will be replaced instead of a new one being added.

_set

(
  • name
  • val
  • [opts]
)
Object protected chainable

Allows setting of readOnly/writeOnce attributes. See set for argument details.

Parameters:

  • name String

    The name of the attribute.

  • val Any

    The value to set the attribute to.

  • [opts] Object optional

    Optional data providing the circumstances for the change.

Returns:

Object:

A reference to the host object.

_setAttr

(
  • name
  • value
  • [opts]
  • force
)
Object protected chainable

Provides the common implementation for the public set and protected _set methods.

See set for argument details.

Parameters:

  • name String

    The name of the attribute.

  • value Any

    The value to set the attribute to.

  • [opts] Object optional

    Optional data providing the circumstances for the change.

  • force Boolean

    If true, allows the caller to set values for readOnly or writeOnce attributes which have already been set.

Returns:

Object:

A reference to the host object.

_setAttrs

(
  • attrs
  • [opts]
)
Object protected chainable

Implementation behind the public setAttrs method, to set multiple attribute values.

Parameters:

  • attrs Object

    An object with attributes name/value pairs.

  • [opts] Object optional

    Optional data providing the circumstances for the change

Returns:

Object:

A reference to the host object.

_setAttrVal

(
  • attrName
  • subAttrName
  • prevVal
  • newVal
  • [opts]
  • [attrCfg]
)
Boolean private

Updates the stored value of the attribute in the privately held State object, if validation and setter passes.

Parameters:

  • attrName String

    The attribute name.

  • subAttrName String

    The sub-attribute name, if setting a sub-attribute property ("x.y.z").

  • prevVal Any

    The currently stored value of the attribute.

  • newVal Any

    The value which is going to be stored.

  • [opts] Object optional

    Optional data providing the circumstances for the change.

  • [attrCfg] Object optional

    Optional config hash for the attribute. This is added for performance along the critical path, where the calling method has already obtained the config from state.

Returns:

Boolean:

true if the new attribute value was stored, false if not.

_setParams

(
  • params
)
Object protected

Defined in app/js/router.js:1518

Available since 3.12.0

Setter for the params attribute.

Parameters:

  • params Object

    Map in the form: name -> RegExp | Function.

Returns:

Object:

The map of params: name -> RegExp | Function.

_setRoutes

(
  • routes
)
Object[] protected

Setter for the routes attribute.

Parameters:

  • routes Object[]

    Array of route objects.

Returns:

Object[]:

Array of route objects.

_setStateVal

(
  • name
  • value
)
private

Sets the stored value for the attribute, in either the internal state object, or the state proxy if it exits

Parameters:

  • name String

    The name of the attribute

  • value Any

    The value of the attribute

_upgradeURL

(
  • url
)
String protected

Defined in app/js/router.js:1555

Available since 3.5.0

Upgrades a hash-based URL to a full-path URL, if necessary.

The specified url will be upgraded if its of the same origin as the current URL and has a path-like hash. URLs that don't need upgrading will be returned as-is.

Parameters:

  • url String

    The URL to upgrade from hash-based to full-path.

Returns:

String:

The upgraded URL, or the specified URL untouched.

Example:

app._upgradeURL('http://example.com/#/foo/'); // => 'http://example.com/foo/';

addAttr

(
  • name
  • config
  • lazy
)
Object chainable

Adds an attribute with the provided configuration to the host object.

The config argument object supports the following properties:

value <Any>
The initial value to set on the attribute
valueFn <Function | String>

A function, which will return the initial value to set on the attribute. This is useful for cases where the attribute configuration is defined statically, but needs to reference the host instance ("this") to obtain an initial value. If both the value and valueFn properties are defined, the value returned by the valueFn has precedence over the value property, unless it returns undefined, in which case the value property is used.

valueFn can also be set to a string, representing the name of the instance method to be used to retrieve the value.

readOnly <boolean>
Whether or not the attribute is read only. Attributes having readOnly set to true cannot be modified by invoking the set method.
writeOnce <boolean> or <string>
Whether or not the attribute is "write once". Attributes having writeOnce set to true, can only have their values set once, be it through the default configuration, constructor configuration arguments, or by invoking set.

The writeOnce attribute can also be set to the string "initOnly", in which case the attribute can only be set during initialization (when used with Base, this means it can only be set during construction)

setter <Function | String>

The setter function used to massage or normalize the value passed to the set method for the attribute. The value returned by the setter will be the final stored value. Returning Attribute.INVALID_VALUE, from the setter will prevent the value from being stored.

setter can also be set to a string, representing the name of the instance method to be used as the setter function.

getter <Function | String>

The getter function used to massage or normalize the value returned by the get method for the attribute. The value returned by the getter function is the value which will be returned to the user when they invoke get.

getter can also be set to a string, representing the name of the instance method to be used as the getter function.

validator <Function | String>

The validator function invoked prior to setting the stored value. Returning false from the validator function will prevent the value from being stored.

validator can also be set to a string, representing the name of the instance method to be used as the validator function.

lazyAdd <boolean>
Whether or not to delay initialization of the attribute until the first call to get/set it. This flag can be used to over-ride lazy initialization on a per attribute basis, when adding multiple attributes through the addAttrs method.

The setter, getter and validator are invoked with the value and name passed in as the first and second arguments, and with the context ("this") set to the host object.

Configuration properties outside of the list mentioned above are considered private properties used internally by attribute, and are not intended for public use.

Parameters:

  • name String

    The name of the attribute.

  • config Object

    An object with attribute configuration property/value pairs, specifying the configuration for the attribute.

    NOTE: The configuration object is modified when adding an attribute, so if you need to protect the original values, you will need to merge the object.

  • lazy Boolean

    (optional) Whether or not to add this attribute lazily (on the first call to get/set).

Returns:

Object:

A reference to the host object.

addAttrs

(
  • cfgs
  • values
  • lazy
)
Object chainable

Configures a group of attributes, and sets initial values.

NOTE: This method does not isolate the configuration object by merging/cloning. The caller is responsible for merging/cloning the configuration object if required.

Parameters:

  • cfgs Object

    An object with attribute name/configuration pairs.

  • values Object

    An object with attribute name/value pairs, defining the initial values to apply. Values defined in the cfgs argument will be over-written by values in this argument unless defined as read only.

  • lazy Boolean

    Whether or not to delay the intialization of these attributes until the first call to get/set. Individual attributes can over-ride this behavior by defining a lazyAdd configuration property in their configuration. See addAttr.

Returns:

Object:

A reference to the host object.

addTarget

(
  • o
)
chainable

Registers another EventTarget as a bubble target. Bubble order is determined by the order registered. Multiple targets can be specified.

Events can only bubble if emitFacade is true.

Included in the event-custom-complex submodule.

Parameters:

after

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Subscribe to a custom event hosted by this object. The supplied callback will execute after any listeners add via the subscribe method, and after the default function, if configured for the event, has executed.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching the subscription

attrAdded

(
  • name
)
Boolean

Checks if the given attribute has been added to the host

Parameters:

  • name String

    The name of the attribute to check.

Returns:

Boolean:

true if an attribute with the given name has been added, false if it hasn't. This method will return true for lazily added attributes.

before

()

Executes the callback before a DOM event, custom event or method. If the first argument is a function, it is assumed the target is a method. For DOM and custom events, this is an alias for Y.on.

For DOM and custom events: type, callback, context, 0-n arguments

For methods: callback, object (method host), methodName, context, 0-n arguments

Returns:

detach handle

bubble

(
  • evt
)
Boolean

Propagate an event. Requires the event-custom-complex module.

Parameters:

Returns:

Boolean:

the aggregated return value from Event.Custom.fire

destroy

() BaseCore chainable

Inherited from BaseObservable but overwritten in base/js/BaseCore.js:352

Destroy lifecycle method. Invokes destructors for the class hierarchy.

Returns:

BaseCore:

A reference to this object

detach

(
  • type
  • fn
  • context
)
EventTarget

Detach one or more listeners the from the specified event

Parameters:

  • type String | Object

    Either the handle to the subscriber or the type of event. If the type is not specified, it will attempt to remove the listener from all hosted events.

  • fn Function

    The subscribed function to unsubscribe, if not supplied, all subscribers will be removed.

  • context Object

    The custom object passed to subscribe. This is optional, but if supplied will be used to disambiguate multiple listeners that are the same (e.g., you subscribe many object using a function that lives on the prototype)

Returns:

EventTarget:

the host

detachAll

(
  • type
)

Removes all listeners from the specified event. If the event type is not specified, all listeners from all hosted custom events will be removed.

Parameters:

  • type String

    The type, or name of the event

dispatch

() static

Defined in app/js/router.js:1774

Available since 3.6.0

Dispatches to the first route handler that matches the specified path for all active router instances.

This provides a mechanism to cause all active router instances to dispatch to their route handlers without needing to change the URL or fire the history:change or hashchange event.

dispatch

() chainable

Dispatches to the first route handler that matches the current URL, if any.

If dispatch() is called before the ready event has fired, it will automatically wait for the ready event before dispatching. Otherwise it will dispatch immediately.

fire

(
  • type
  • arguments
)
Boolean

Fire a custom event by name. The callback functions will be executed from the context specified when the event was created, and with the following parameters.

The first argument is the event type, and any additional arguments are passed to the listeners as parameters. If the first of these is an object literal, and the event is configured to emit an event facade, that object is mixed into the event facade and the facade is provided in place of the original object.

If the custom event object hasn't been created, then the event hasn't been published and it has no subscribers. For performance sake, we immediate exit in this case. This means the event won't bubble, so if the intention is that a bubble target be notified, the event must be published on this object first.

Parameters:

  • type String | Object

    The type of the event, or an object that contains a 'type' property.

  • arguments Object*

    an arbitrary set of parameters to pass to the handler. If the first of these is an object literal and the event is configured to emit an event facade, the event facade will replace that parameter after the properties the object literal contains are copied to the event facade.

Returns:

Boolean:

True if the whole lifecycle of the event went through, false if at any point the event propagation was halted.

get

(
  • name
)
Any

Returns the current value of the attribute. If the attribute has been configured with a 'getter' function, this method will delegate to the 'getter' to obtain the value of the attribute.

Parameters:

  • name String

    The name of the attribute. If the value of the attribute is an Object, dot notation can be used to obtain the value of a property of the object (e.g. get("x.y.z"))

Returns:

Any:

The value of the attribute

getAttrs

(
  • attrs
)
Object

Gets multiple attribute values.

Parameters:

  • attrs String[] | Boolean

    Optional. An array of attribute names. If omitted, all attribute values are returned. If set to true, all attributes modified from their initial values are returned.

Returns:

Object:

An object with attribute name/value pairs.

getEvent

(
  • type
  • prefixed
)
CustomEvent

Returns the custom event of the provided type has been created, a falsy value otherwise

Parameters:

  • type String

    the type, or name of the event

  • prefixed String

    if true, the type is prefixed already

Returns:

CustomEvent:

the custom event or null

getPath

() String

Gets the current route path.

Returns:

String:

Current route path.

getTargets

()

Returns an array of bubble targets for this object.

Returns:

EventTarget[]

hasRoute

(
  • url
)
Boolean

Returns true if this router has at least one route that matches the specified URL, false otherwise. This also checks that any named param handlers also accept app param values in the url.

This method enforces the same-origin security constraint on the specified url; any URL which is not from the same origin as the current URL will always return false.

Parameters:

Returns:

Boolean:

true if there's at least one matching route, false otherwise.

init

(
  • cfg
)
BaseCore chainable

Inherited from BaseObservable but overwritten in base/js/BaseCore.js:319

Init lifecycle method, invoked during construction. Sets up attributes and invokes initializers for the class hierarchy.

Parameters:

  • cfg Object

    Object with configuration property name/value pairs

Returns:

BaseCore:

A reference to this object

match

(
  • path
)
Object[]

Returns an array of route objects that match the specified URL path.

If this router has a root, then the specified path must be semantically within the root path to match any routes.

This method is called internally to determine which routes match the current path whenever the URL changes. You may override it if you want to customize the route matching logic, although this usually shouldn't be necessary.

Each returned route object has the following properties:

  • callback: A function or a string representing the name of a function this router that should be executed when the route is triggered.

  • keys: An array of strings representing the named parameters defined in the route's path specification, if any.

  • path: The route's path specification, which may be either a string or a regex.

  • regex: A regular expression version of the route's path specification. This regex is used to determine whether the route matches a given path.

Parameters:

  • path String

    URL path to match. This should be an absolute path that starts with a slash: "/".

Returns:

Object[]:

Array of route objects that match the specified path.

Example:

router.route('/foo', function () {});
            router.match('/foo');
            // => [{callback: ..., keys: [], path: '/foo', regex: ...}]

modifyAttr

(
  • name
  • config
)

Updates the configuration of an attribute which has already been added.

The properties which can be modified through this interface are limited to the following subset of attributes, which can be safely modified after a value has already been set on the attribute:

readOnly;
writeOnce;
broadcast; and
getter.

Note: New attributes cannot be added using this interface. New attributes must be added using addAttr, or an appropriate manner for a class which utilises Attributes (e.g. the ATTRS property in Base).

Parameters:

  • name String

    The name of the attribute whose configuration is to be updated.

  • config Object

    An object with configuration property/value pairs, specifying the configuration properties to modify.

on

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Subscribe a callback function to a custom event fired by this object or from an object that bubbles its events to this object.

 this.on("change", this._onChange, this);

Callback functions for events published with emitFacade = true will receive an EventFacade as the first argument (typically named "e"). These callbacks can then call e.preventDefault() to disable the behavior published to that event's defaultFn. See the EventFacade API for all available properties and methods. Subscribers to non-emitFacade events will receive the arguments passed to fire() after the event name.

To subscribe to multiple events at once, pass an object as the first argument, where the key:value pairs correspond to the eventName:callback.

 this.on({
                 "attrChange" : this._onAttrChange,
                 "change"     : this._onChange
             });

You can also pass an array of event names as the first argument to subscribe to all listed events with the same callback.

 this.on([ "change", "attrChange" ], this._onChange);

Returning false from a callback is supported as an alternative to calling e.preventDefault(); e.stopPropagation();. However, it is recommended to use the event methods whenever possible.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching that subscription

once

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Listen to a custom event hosted by this object one time. This is the equivalent to on except the listener is immediatelly detached when it is executed.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching the subscription

onceAfter

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Listen to a custom event hosted by this object one time. This is the equivalent to after except the listener is immediatelly detached when it is executed.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching that subscription

param

(
  • name
  • handler
)
chainable

Defined in app/js/router.js:383

Available since 3.12.0

Adds a handler for a route param specified by name.

Param handlers can be registered via this method and are used to validate/format values of named params in routes before dispatching to the route's handler functions. Using param handlers allows routes to defined using string paths which allows for req.params to use named params, but still applying extra validation or formatting to the param values parsed from the URL.

If a param handler regex or function returns a value of false, null, undefined, or NaN, the current route will not match and be skipped. All other return values will be used in place of the original param value parsed from the URL.

Parameters:

  • name String

    Name of the param used in route paths.

  • handler Function | RegExp

    Function to invoke or regular expression to exec() during route dispatching whose return value is used as the new param value. Values of false, null, undefined, or NaN will cause the current route to not match and be skipped. When a function is specified, it will be invoked in the context of this instance with the following parameters:

    • value String

      The current param value parsed from the URL.

    • name String

      The name of the param.

Example:

router.param('postId', function (value) {
                return parseInt(value, 10);
            });
            
            router.param('username', /^\w+$/);
            
            router.route('/posts/:postId', function (req) {
                Y.log('Post: ' + req.params.id);
            });
            
            router.route('/users/:username', function (req) {
                // req.params.username is an array because the result of calling
                // exec() on the regex is assigned as the param's value.
                Y.log('User: ' + req.params.username[0]);
            });
            
            router.route('*', function () {
                Y.log('Catch-all no routes matched!');
            });
            
            // URLs which match routes:
            router.save('/posts/1');     // => "Post: 1"
            router.save('/users/ericf'); // => "User: ericf"
            
            // URLs which do not match routes because params fail validation:
            router.save('/posts/a');            // => "Catch-all no routes matched!"
            router.save('/users/ericf,rgrove'); // => "Catch-all no routes matched!"

parseType

(
  • type
  • [pre]
)
Array

Inherited from EventTarget: event-custom/js/event-target.js:168

Available since 3.3.0

Takes the type parameter passed to 'on' and parses out the various pieces that could be included in the type. If the event type is passed without a prefix, it will be expanded to include the prefix one is supplied or the event target is configured with a default prefix.

Parameters:

  • type String

    the type

  • [pre] String optional

    The prefix. Defaults to this._yuievt.config.prefix

Returns:

Array:

an array containing:

  • the detach category, if supplied,
  • the prefixed event type,
  • whether or not this is an after listener,
  • the supplied event type

publish

(
  • type
  • opts
)
CustomEvent

Creates a new custom event of the specified type. If a custom event by that name already exists, it will not be re-created. In either case the custom event is returned.

Parameters:

  • type String

    the type, or name of the event

  • opts Object

    optional config params. Valid properties are:

    • [broadcast=false] Boolean optional

      whether or not the YUI instance and YUI global are notified when the event is fired.

    • [bubbles=true] Boolean optional

      Whether or not this event bubbles. Events can only bubble if emitFacade is true.

    • [context=this] Object optional

      the default execution context for the listeners.

    • [defaultFn] Function optional

      the default function to execute when this event fires if preventDefault was not called.

    • [emitFacade=false] Boolean optional

      whether or not this event emits a facade.

    • [prefix] String optional

      the prefix for this targets events, e.g., 'menu' in 'menu:click'.

    • [fireOnce=false] Boolean optional

      if an event is configured to fire once, new subscribers after the fire will be notified immediately.

    • [async=false] Boolean optional

      fireOnce event listeners will fire synchronously if the event has already fired unless async is true.

    • [preventable=true] Boolean optional

      whether or not preventDefault() has an effect.

    • [preventedFn] Function optional

      a function that is executed when preventDefault() is called.

    • [queuable=false] Boolean optional

      whether or not this event can be queued during bubbling.

    • [silent] Boolean optional

      if silent is true, debug messages are not provided for this event.

    • [stoppedFn] Function optional

      a function that is executed when stopPropagation is called.

    • [monitored] Boolean optional

      specifies whether or not this event should send notifications about when the event has been attached, detached, or published.

    • [type] String optional

      the event type (valid option if not provided as the first parameter to publish).

Returns:

CustomEvent:

the custom event

removeAttr

(
  • name
)

Removes an attribute from the host object

Parameters:

  • name String

    The name of the attribute to be removed.

removeQuery

(
  • url
)
String

Removes a query string from the end of the url (if one exists) and returns the result.

Parameters:

Returns:

String:

Queryless path.

removeRoot

(
  • url
)
String

Removes the root URL from the front of url (if it's there) and returns the result. The returned path will always have a leading /.

Parameters:

Returns:

String:

Rootless path.

removeTarget

(
  • o
)
chainable

Removes a bubble target

Parameters:

replace

(
  • [url]
)
chainable

Replaces the current browser history entry with a new one, and dispatches to the first matching route handler, if any.

Behind the scenes, this method uses HTML5 pushState() in browsers that support it (or the location hash in older browsers and IE) to change the URL.

The specified URL must share the same origin (i.e., protocol, host, and port) as the current page, or an error will occur.

Parameters:

  • [url] String optional

    URL to set. This URL needs to be of the same origin as the current URL. This can be a URL relative to the router's root attribute. If no URL is specified, the page's current URL will be used.

Example:

// Starting URL: http://example.com/
            
            router.replace('/path/');
            // New URL: http://example.com/path/
            
            router.replace('/path?foo=bar');
            // New URL: http://example.com/path?foo=bar
            
            router.replace('/');
            // New URL: http://example.com/

reset

(
  • name
)
Object chainable

Resets the attribute (or all attributes) to its initial value, as long as the attribute is not readOnly, or writeOnce.

Parameters:

  • name String

    Optional. The name of the attribute to reset. If omitted, all attributes are reset.

Returns:

Object:

A reference to the host object.

route

(
  • route
  • callbacks
)
chainable

Adds a route handler for the specified route.

The route parameter may be a string or regular expression to represent a URL path, or a route object. If it's a string (which is most common), it may contain named parameters: :param will match any single part of a URL path (not including / characters), and *param will match any number of parts of a URL path (including / characters). These named parameters will be made available as keys on the req.params object that's passed to route handlers.

If the route parameter is a regex, all pattern matches will be made available as numbered keys on req.params, starting with 0 for the full match, then 1 for the first subpattern match, and so on.

Alternatively, an object can be provided to represent the route and it may contain a path property which is a string or regular expression which causes the route to be process as described above. If the route object already contains a regex or regexp property, the route will be considered fully-processed and will be associated with any callacks specified on the object and those specified as parameters to this method. Note: Any additional data contained on the route object will be preserved.

Here's a set of sample routes along with URL paths that they match:

  • Route: /photos/:tag/:page

    • URL: /photos/kittens/1, params: {tag: 'kittens', page: '1'}
    • URL: /photos/puppies/2, params: {tag: 'puppies', page: '2'}
  • Route: /file/*path

    • URL: /file/foo/bar/baz.txt, params: {path: 'foo/bar/baz.txt'}
    • URL: /file/foo, params: {path: 'foo'}

Middleware: Routes also support an arbitrary number of callback functions. This allows you to easily reuse parts of your route-handling code with different route. This method is liberal in how it processes the specified callbacks, you can specify them as separate arguments, or as arrays, or both.

If multiple route match a given URL, they will be executed in the order they were added. The first route that was added will be the first to be executed.

Passing Control: Invoking the next() function within a route callback will pass control to the next callback function (if any) or route handler (if any). If a value is passed to next(), it's assumed to be an error, therefore stopping the dispatch chain, unless that value is: "route", which is special case and dispatching will skip to the next route handler. This allows middleware to skip any remaining middleware for a particular route.

Parameters:

  • route String | RegExp | Object

    Route to match. May be a string or a regular expression, or a route object.

  • callbacks Array | Function | String multiple

    Callback functions to call whenever this route is triggered. These can be specified as separate arguments, or in arrays, or both. If a callback is specified as a string, the named function will be called on this router instance.

    • req Object

      Request object containing information about the request. It contains the following properties.

      • params Array | Object
        Captured parameters matched by the route path specification. If a string path was used and contained named parameters, then this will be a key/value hash mapping parameter names to their matched values. If a regex path was used, this will be an array of subpattern matches starting at index 0 for the full match, then 1 for the first subpattern match, and so on.
      • path String
        The current URL path.
      • pendingCallbacks Number
        Number of remaining callbacks the route handler has after this one in the dispatch chain.
      • pendingRoutes Number
        Number of matching routes after this one in the dispatch chain.
      • query Object
        Query hash representing the URL query string, if any. Parameter names are keys, and are mapped to parameter values.
      • route Object
        Reference to the current route object whose callbacks are being dispatched.
      • router Object
        Reference to this router instance.
      • src String
        What initiated the dispatch. In an HTML5 browser, when the back/forward buttons are used, this property will have a value of "popstate". When the dispath() method is called, the src will be "dispatch".
      • url String
        The full URL.
    • res Object

      Response object containing methods and information that relate to responding to a request. It contains the following properties.

      • req Object
        Reference to the request object.
    • next Function

      Function to pass control to the next callback or the next matching route if no more callbacks (middleware) exist for the current route handler. If you don't call this function, then no further callbacks or route handlers will be executed, even if there are more that match. If you do call this function, then the next callback (if any) or matching route handler (if any) will be called. All of these functions will receive the same req and res objects that were passed to this route (so you can use these objects to pass data along to subsequent callbacks and routes).

      • [err] String optional
        Optional error which will stop the dispatch chaining for this req, unless the value is "route", which is special cased to jump skip past any callbacks for the current route and pass control the next route handler.

Example:

router.route('/photos/:tag/:page', function (req, res, next) {
                Y.log('Current tag: ' + req.params.tag);
                Y.log('Current page number: ' + req.params.page);
            });
            
            // Using middleware.
            
            router.findUser = function (req, res, next) {
                req.user = this.get('users').findById(req.params.user);
                next();
            };
            
            router.route('/users/:user', 'findUser', function (req, res, next) {
                // The findUser middleware puts the user object on the req.
                Y.log('Current user:' req.user.get('name'));
            });

save

(
  • [url]
)
chainable

Saves a new browser history entry and dispatches to the first matching route handler, if any.

Behind the scenes, this method uses HTML5 pushState() in browsers that support it (or the location hash in older browsers and IE) to change the URL and create a history entry.

The specified URL must share the same origin (i.e., protocol, host, and port) as the current page, or an error will occur.

Parameters:

  • [url] String optional

    URL to set. This URL needs to be of the same origin as the current URL. This can be a URL relative to the router's root attribute. If no URL is specified, the page's current URL will be used.

Example:

// Starting URL: http://example.com/
            
            router.save('/path/');
            // New URL: http://example.com/path/
            
            router.save('/path?foo=bar');
            // New URL: http://example.com/path?foo=bar
            
            router.save('/');
            // New URL: http://example.com/

set

(
  • name
  • value
  • [opts]
)
Object chainable

Sets the value of an attribute.

Parameters:

  • name String

    The name of the attribute. If the current value of the attribute is an Object, dot notation can be used to set the value of a property within the object (e.g. set("x.y.z", 5)).

  • value Any

    The value to set the attribute to.

  • [opts] Object optional

    Optional data providing the circumstances for the change.

Returns:

Object:

A reference to the host object.

setAttrs

(
  • attrs
  • [opts]
)
Object chainable

Sets multiple attribute values.

Parameters:

  • attrs Object

    An object with attributes name/value pairs.

  • [opts] Object optional

    Optional data providing the circumstances for the change.

Returns:

Object:

A reference to the host object.

subscribe

() deprecated

Inherited from EventTarget: event-custom/js/event-target.js:346

Deprecated: use on

subscribe to an event

toString

() String

Default toString implementation. Provides the constructor NAME and the instance guid, if set.

Returns:

String:

String representation for this object

unsubscribe

() deprecated

Inherited from EventTarget: event-custom/js/event-target.js:469

Deprecated: use detach

detach a listener

unsubscribeAll

(
  • type
)
deprecated

Inherited from EventTarget: event-custom/js/event-target.js:490

Deprecated: use detachAll

Removes all listeners from the specified event. If the event type is not specified, all listeners from all hosted custom events will be removed.

Parameters:

  • type String

    The type, or name of the event

upgrade

() Boolean

Upgrades a hash-based URL to an HTML5 URL if necessary. In non-HTML5 browsers, this method is a noop.

Returns:

Boolean:

true if the URL was upgraded, false otherwise.

Properties

_allowAdHocAttrs

Boolean protected

This property controls whether or not instances of this class should allow users to add ad-hoc attributes through the constructor configuration hash.

AdHoc attributes are attributes which are not defined by the class, and are not handled by the MyClass._NON_ATTRS_CFG

Default: undefined (false)

_dispatched

Boolean protected

Defined in app/js/router.js:66

Whether or not _dispatch() has been called since this router was instantiated.

Default: undefined

_dispatching

Boolean protected

Defined in app/js/router.js:76

Whether or not we're currently in the process of dispatching to routes.

Default: undefined

_historyEvents

EventHandle protected

Defined in app/js/router.js:85

History event handle for the history:change or hashchange event subscription.

_html5

Boolean protected

Defined in app/js/router.js:94

Cached copy of the html5 attribute for internal use.

_params

Object protected

Defined in app/js/router.js:102

Available since 3.12.0

Map which holds the registered param handlers in the form: name -> RegExp | Function.

_ready

Boolean protected

Whether or not the ready event has fired yet.

Default: undefined

_regexPathParam

RegExp protected

Regex used to match parameter placeholders in route paths.

Subpattern captures:

  1. Parameter prefix character. Either a : for subpath parameters that should only match a single level of a path, or * for splat parameters that should match any number of path levels.

  2. Parameter name, if specified, otherwise it is a wildcard match.

_regexURL

RegExp protected

Defined in app/js/router.js:121

Available since 3.5.0

Regex used to break up a URL string around the URL's path.

Subpattern captures:

  1. Origin, everything before the URL's path-part.
  2. The URL's path-part.
  3. The URL's query.
  4. The URL's hash fragment.

_regexUrlOrigin

RegExp protected

Regex that matches everything before the path portion of a URL (the origin). This will be used to strip this part of the URL from a string when we only want the path.

_regexUrlQuery

RegExp protected

Regex that matches and captures the query portion of a URL, minus the preceding ? character, and discarding the hash portion of the URL if any.

_routes

Array protected

Collection of registered routes.

name

String deprecated

Inherited from BaseCore: base/js/BaseCore.js:297

Deprecated: Use this.constructor.NAME

The string used to identify the class of this object.

Attributes

destroyed

Boolean readonly

Flag indicating whether or not this object has been through the destroy lifecycle phase.

Default: false

Fires event destroyedChange

Fires when the value for the configuration attribute destroyed is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

html5

Boolean

Whether or not this browser is capable of using HTML5 history.

Setting this to false will force the use of hash-based history even on HTML5 browsers, but please don't do this unless you understand the consequences.

Fires event html5Change

Fires when the value for the configuration attribute html5 is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

initialized

Boolean readonly

Flag indicating whether or not this object has been through the init lifecycle phase.

Default: false

Fires event initializedChange

Fires when the value for the configuration attribute initialized is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

params

Object

Defined in app/js/router.js:1671

Available since 3.12.0

Map of params handlers in the form: name -> RegExp | Function.

If a param handler regex or function returns a value of false, null, undefined, or NaN, the current route will not match and be skipped. All other return values will be used in place of the original param value parsed from the URL.

This attribute is intended to be used to set params at init time, or to completely reset all params after init. To add params after init without resetting all existing params, use the param() method.

Default: `{}`

Fires event paramsChange

Fires when the value for the configuration attribute params is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

root

String

Absolute root path from which all routes should be evaluated.

For example, if your router is running on a page at http://example.com/myapp/ and you add a route with the path /, your route will never execute, because the path will always be preceded by /myapp. Setting root to /myapp would cause all routes to be evaluated relative to that root URL, so the / route would then execute when the user browses to http://example.com/myapp/.

Default: `''`

Fires event rootChange

Fires when the value for the configuration attribute root is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

Example:

router.set('root', '/myapp');
            router.route('/foo', function () { ... });
            
            Y.log(router.hasRoute('/foo'));       // => false
            Y.log(router.hasRoute('/myapp/foo')); // => true
            
            // Updates the URL to: "/myapp/foo"
            router.save('/foo');

routes

Object[]

Array of route objects.

Each item in the array must be an object with the following properties in order to be processed by the router:

  • path: String or regex representing the path to match. See the docs for the route() method for more details.

  • callbacks: Function or a string representing the name of a function on this router instance that should be called when the route is triggered. An array of functions and/or strings may also be provided. See the docs for the route() method for more details.

If a route object contains a regex or regexp property, or if its path is a regular express, then the route will be considered to be fully-processed. Any fully-processed routes may contain the following properties:

  • regex: The regular expression representing the path to match, this property may also be named regexp for greater compatibility.

  • keys: Array of named path parameters used to populate req.params objects when dispatching to route handlers.

Any additional data contained on these route objects will be retained. This is useful to store extra metadata about a route; e.g., a name to give routes logical names.

This attribute is intended to be used to set routes at init time, or to completely reset all routes after init. To add routes after init without resetting all existing routes, use the route() method.

Default: `[]`

Fires event routesChange

Fires when the value for the configuration attribute routes is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

Events

destroy

Lifecycle event for the destroy phase, fired prior to destruction. Invoking the preventDefault method on the event object provided to subscribers will prevent destruction from proceeding.

Subscribers to the "after" moment of this event, will be notified after destruction is complete (and as a result cannot prevent destruction).

Event Payload:

init

Lifecycle event for the init phase, fired prior to initialization. Invoking the preventDefault() method on the event object provided to subscribers will prevent initialization from occuring.

Subscribers to the "after" momemt of this event, will be notified after initialization of the object is complete (and therefore cannot prevent initialization).

Event Payload:

  • e EventFacade

    Event object, with a cfg property which refers to the configuration object passed to the constructor.

ready

Defined in app/js/router.js:26

Fired when the router is ready to begin dispatching to route handlers.

You shouldn't need to wait for this event unless you plan to implement some kind of custom dispatching logic. It's used internally in order to avoid dispatching to an initial route if a browser history change occurs first.

Event Payload:

  • dispatched Boolean

    true if routes have already been dispatched (most likely due to a history change).