Class Component

Component is the base class for all Presenter components.

Components are persistent objects located on a presenter. They have ability to own other child components, and interact with user. Components have properties for storing their status, and responds to user command.

Nette\ComponentModel\Component implements Nette\ComponentModel\IComponent uses Nette\SmartObject

Nette\ComponentModel\Container implements Nette\ComponentModel\IContainer

Nette\Application\UI\Component implements Nette\Application\UI\ISignalReceiver, Nette\Application\UI\IStatePersistent, ArrayAccess

Direct known subclasses

Nette\Application\UI\Control, Nette\Application\UI\Multiplier

Indirect known subclasses

Nette\Application\UI\Presenter

Abstract
Namespace: Nette\Application\UI
Located at Application/UI/Component.php

Methods summary
`public Nette\Application\UI\Presenter\|null`	# `getPresenter( boolean $throw = true )` Returns the presenter where this component belongs to. Returns the presenter where this component belongs to. Parameters `$throw` exception if presenter doesn't exist? Returns `Nette\Application\UI\Presenter\|null` Presenter\|null
`public string`	# `getUniqueId( )` Returns a fully-qualified name that uniquely identifies the component within the presenter hierarchy. Returns a fully-qualified name that uniquely identifies the component within the presenter hierarchy. Returns `string` string
`protected`	# `attached( Nette\ComponentModel\IComponent $presenter )` This method will be called when the component (or component's parent) becomes attached to a monitored object. Do not call this method yourself. This method will be called when the component (or component's parent) becomes attached to a monitored object. Do not call this method yourself. Parameters `$presenter` Overrides `Nette\ComponentModel\Component::attached()`
`protected`	# `validateParent( Nette\ComponentModel\IContainer $parent )` Throws `Nette\InvalidStateException` Nette\InvalidStateException Overrides `Nette\ComponentModel\Component::validateParent()`
`protected boolean`	# `tryCall( string $method, array $params )` Calls public method if exists. Calls public method if exists. Parameters `$method` `$params` Returns `boolean` does method exist?
`public`	# `checkRequirements( $element )` Checks for requirements such as authorization. Checks for requirements such as authorization.
`public static Nette\Application\UI\ComponentReflection`	# `getReflection( )` Access to reflection. Access to reflection. Returns `Nette\Application\UI\ComponentReflection` ComponentReflection Overrides `Nette\ComponentModel\Component::getReflection()`
`public`	# `loadState( array $params )` Loads state informations. Loads state informations. Parameters `$params` Implementation of `Nette\Application\UI\IStatePersistent::loadState()`
`public`	# `saveState( array & $params )` Saves state informations for next request. Saves state informations for next request. Implementation of `Nette\Application\UI\IStatePersistent::saveState()`
`public mixed`	# `getParameter( string $name, mixed $default = null )` Returns component param. Returns component param. Parameters `$name` key `$default` value Returns `mixed` mixed
`public array`	# `getParameters( )` Returns component parameters. Returns component parameters. Returns `array` array
`public string`	# `getParameterId( string $name )` Returns a fully-qualified name that uniquely identifies the parameter. Returns a fully-qualified name that uniquely identifies the parameter. Parameters `$name` Returns `string` string
`public`	# `getParam( $name = null, $default = null )` Deprecated
`public static array`	# `getPersistentParams( )` Returns array of classes persistent parameters. They have public visibility and are non-static. This default implementation detects persistent parameters by annotation @persistent. Returns array of classes persistent parameters. They have public visibility and are non-static. This default implementation detects persistent parameters by annotation @persistent. Returns `array` array
`public`	# `signalReceived( string $signal )` Calls signal handler method. Calls signal handler method. Parameters `$signal` Throws `Nette\Application\UI\BadSignalException` if there is not handler method Implementation of `Nette\Application\UI\ISignalReceiver::signalReceived()`
`public static string`	# `formatSignalMethod( string $signal )` Formats signal handler method name -> case sensitivity doesn't matter. Formats signal handler method name -> case sensitivity doesn't matter. Parameters `$signal` Returns `string` string
`public string`	# `link( string $destination, array\|mixed $args = [] )` Generates URL to presenter, action or signal. Generates URL to presenter, action or signal. Parameters `$destination` in format "[//] [[[module:]presenter:]action \| signal! \| this] [#fragment]" `$args` Returns `string` string Throws `Nette\Application\UI\InvalidLinkException` InvalidLinkException
`public Nette\Application\UI\Link`	# `lazyLink( string $destination, array\|mixed $args = [] )` Returns destination as Link object. Returns destination as Link object. Parameters `$destination` in format "[//] [[[module:]presenter:]action \| signal! \| this] [#fragment]" `$args` Returns `Nette\Application\UI\Link` Link
`public boolean`	# `isLinkCurrent( string $destination = null, array\|mixed $args = [] )` Determines whether it links to the current page. Determines whether it links to the current page. Parameters `$destination` in format "[//] [[[module:]presenter:]action \| signal! \| this] [#fragment]" `$args` Returns `boolean` bool Throws `Nette\Application\UI\InvalidLinkException` InvalidLinkException
`public`	# `redirect( integer $code, string $destination = null, array\|mixed $args = [] )` Redirect to another presenter, action or signal. Redirect to another presenter, action or signal. Parameters `$code` HTTP error code `$destination` in format "[//] [[[module:]presenter:]action \| signal! \| this] [#fragment]" `$args` Throws `Nette\Application\AbortException` Nette\Application\AbortException
`public`	# `redirectPermanent( string $destination = null, array\|mixed $args = [] )` Permanently redirects to presenter, action or signal. Permanently redirects to presenter, action or signal. Parameters `$destination` in format "[//] [[[module:]presenter:]action \| signal! \| this] [#fragment]" `$args` Throws `Nette\Application\AbortException` Nette\Application\AbortException
`public`	# `error( string $message = null, integer $httpCode = Nette\Http\IResponse::S404_NOT_FOUND )` Throws HTTP error. Throws HTTP error. Parameters `$message` `$httpCode` error code Throws `Nette\Application\BadRequestException` Nette\Application\BadRequestException
`public`	# `offsetSet( string $name, Nette\ComponentModel\IComponent $component )` Adds the component to the container. Adds the component to the container. Parameters `$name` name `$component` Implementation of `ArrayAccess::offsetSet()`
`public Nette\ComponentModel\IComponent`	# `offsetGet( string $name )` Returns component specified by name. Throws exception if component doesn't exist. Returns component specified by name. Throws exception if component doesn't exist. Parameters `$name` name Returns `Nette\ComponentModel\IComponent` Nette\ComponentModel\IComponent Throws `Nette\InvalidArgumentException` Nette\InvalidArgumentException Implementation of `ArrayAccess::offsetGet()`
`public boolean`	# `offsetExists( string $name )` Does component specified by name exists? Does component specified by name exists? Parameters `$name` name Returns `boolean` bool Implementation of `ArrayAccess::offsetExists()`
`public`	# `offsetUnset( string $name )` Removes component from the container. Removes component from the container. Parameters `$name` name Implementation of `ArrayAccess::offsetUnset()`

Methods inherited from Nette\ComponentModel\Container
`__clone(), _isCloning(), addComponent(), createComponent(), getComponent(), getComponents(), removeComponent(), validateChildComponent()`

Methods inherited from Nette\ComponentModel\Component
`__construct(), __sleep(), __wakeup(), detached(), getName(), getParent(), lookup(), lookupPath(), monitor(), setParent(), unmonitor()`

Methods used from Nette\SmartObject
`__call(), __callStatic(), __get(), __isset(), __set(), __unset(), extensionMethod()`

Constants inherited from Nette\ComponentModel\IComponent
`NAME_SEPARATOR`

Properties summary
`public callable[]`	`$onAnchor` function (self $sender); Occurs when component is attached to presenter function (self $sender); Occurs when component is attached to presenter	#
`protected array`	`$params`	#`[]`

Magic properties summary
`public read-only Nette\Application\UI\Presenter`	`$presenter`
`public read-only boolean`	`$linkCurrent`

Magic properties inherited from Nette\ComponentModel\Container
`$components`

Magic properties inherited from Nette\ComponentModel\Component
`$name, $parent`

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