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542 lines
No EOL
15 KiB
PHP
542 lines
No EOL
15 KiB
PHP
<?php
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/**
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* Base include file for SimpleTest
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* @package SimpleTest
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* @subpackage WebTester
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* @version $Id: page.php 1938 2009-08-05 17:16:23Z dgheath $
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*/
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/**#@+
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* include other SimpleTest class files
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*/
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require_once(dirname(__FILE__) . '/http.php');
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require_once(dirname(__FILE__) . '/php_parser.php');
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require_once(dirname(__FILE__) . '/tag.php');
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require_once(dirname(__FILE__) . '/form.php');
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require_once(dirname(__FILE__) . '/selector.php');
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/**#@-*/
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/**
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* A wrapper for a web page.
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* @package SimpleTest
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* @subpackage WebTester
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*/
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class SimplePage {
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private $links = array();
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private $title = false;
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private $last_widget;
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private $label;
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private $forms = array();
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private $frames = array();
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private $transport_error;
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private $raw;
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private $text = false;
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private $sent;
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private $headers;
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private $method;
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private $url;
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private $base = false;
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private $request_data;
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/**
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* Parses a page ready to access it's contents.
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* @param SimpleHttpResponse $response Result of HTTP fetch.
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* @access public
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*/
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function __construct($response = false) {
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if ($response) {
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$this->extractResponse($response);
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} else {
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$this->noResponse();
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}
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}
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/**
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* Extracts all of the response information.
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* @param SimpleHttpResponse $response Response being parsed.
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* @access private
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*/
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protected function extractResponse($response) {
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$this->transport_error = $response->getError();
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$this->raw = $response->getContent();
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$this->sent = $response->getSent();
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$this->headers = $response->getHeaders();
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$this->method = $response->getMethod();
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$this->url = $response->getUrl();
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$this->request_data = $response->getRequestData();
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}
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/**
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* Sets up a missing response.
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* @access private
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*/
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protected function noResponse() {
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$this->transport_error = 'No page fetched yet';
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$this->raw = false;
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$this->sent = false;
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$this->headers = false;
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$this->method = 'GET';
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$this->url = false;
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$this->request_data = false;
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}
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/**
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* Original request as bytes sent down the wire.
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* @return mixed Sent content.
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* @access public
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*/
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function getRequest() {
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return $this->sent;
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}
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/**
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* Accessor for raw text of page.
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* @return string Raw unparsed content.
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* @access public
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*/
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function getRaw() {
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return $this->raw;
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}
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/**
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* Accessor for plain text of page as a text browser
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* would see it.
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* @return string Plain text of page.
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* @access public
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*/
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function getText() {
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if (! $this->text) {
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$this->text = SimplePage::normalise($this->raw);
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}
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return $this->text;
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}
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/**
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* Accessor for raw headers of page.
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* @return string Header block as text.
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* @access public
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*/
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function getHeaders() {
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if ($this->headers) {
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return $this->headers->getRaw();
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}
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return false;
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}
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/**
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* Original request method.
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* @return string GET, POST or HEAD.
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* @access public
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*/
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function getMethod() {
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return $this->method;
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}
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/**
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* Original resource name.
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* @return SimpleUrl Current url.
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* @access public
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*/
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function getUrl() {
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return $this->url;
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}
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/**
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* Base URL if set via BASE tag page url otherwise
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* @return SimpleUrl Base url.
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* @access public
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*/
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function getBaseUrl() {
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return $this->base;
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}
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/**
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* Original request data.
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* @return mixed Sent content.
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* @access public
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*/
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function getRequestData() {
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return $this->request_data;
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}
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/**
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* Accessor for last error.
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* @return string Error from last response.
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* @access public
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*/
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function getTransportError() {
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return $this->transport_error;
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}
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/**
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* Accessor for current MIME type.
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* @return string MIME type as string; e.g. 'text/html'
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* @access public
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*/
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function getMimeType() {
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if ($this->headers) {
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return $this->headers->getMimeType();
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}
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return false;
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}
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/**
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* Accessor for HTTP response code.
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* @return integer HTTP response code received.
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* @access public
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*/
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function getResponseCode() {
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if ($this->headers) {
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return $this->headers->getResponseCode();
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}
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return false;
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}
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/**
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* Accessor for last Authentication type. Only valid
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* straight after a challenge (401).
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* @return string Description of challenge type.
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* @access public
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*/
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function getAuthentication() {
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if ($this->headers) {
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return $this->headers->getAuthentication();
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}
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return false;
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}
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/**
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* Accessor for last Authentication realm. Only valid
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* straight after a challenge (401).
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* @return string Name of security realm.
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* @access public
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*/
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function getRealm() {
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if ($this->headers) {
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return $this->headers->getRealm();
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}
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return false;
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}
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/**
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* Accessor for current frame focus. Will be
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* false as no frames.
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* @return array Always empty.
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* @access public
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*/
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function getFrameFocus() {
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return array();
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}
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/**
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* Sets the focus by index. The integer index starts from 1.
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* @param integer $choice Chosen frame.
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* @return boolean Always false.
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* @access public
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*/
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function setFrameFocusByIndex($choice) {
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return false;
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}
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/**
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* Sets the focus by name. Always fails for a leaf page.
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* @param string $name Chosen frame.
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* @return boolean False as no frames.
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* @access public
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*/
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function setFrameFocus($name) {
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return false;
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}
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/**
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* Clears the frame focus. Does nothing for a leaf page.
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* @access public
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*/
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function clearFrameFocus() {
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}
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/**
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* TODO: write docs
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*/
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function setFrames($frames) {
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$this->frames = $frames;
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}
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/**
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* Test to see if link is an absolute one.
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* @param string $url Url to test.
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* @return boolean True if absolute.
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* @access protected
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*/
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protected function linkIsAbsolute($url) {
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$parsed = new SimpleUrl($url);
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return (boolean)($parsed->getScheme() && $parsed->getHost());
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}
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/**
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* Adds a link to the page.
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* @param SimpleAnchorTag $tag Link to accept.
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*/
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function addLink($tag) {
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$this->links[] = $tag;
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}
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/**
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* Set the forms
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* @param array $forms An array of SimpleForm objects
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*/
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function setForms($forms) {
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$this->forms = $forms;
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}
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/**
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* Test for the presence of a frameset.
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* @return boolean True if frameset.
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* @access public
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*/
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function hasFrames() {
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return count($this->frames) > 0;
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}
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/**
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* Accessor for frame name and source URL for every frame that
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* will need to be loaded. Immediate children only.
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* @return boolean/array False if no frameset or
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* otherwise a hash of frame URLs.
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* The key is either a numerical
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* base one index or the name attribute.
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* @access public
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*/
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function getFrameset() {
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if (! $this->hasFrames()) {
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return false;
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}
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$urls = array();
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for ($i = 0; $i < count($this->frames); $i++) {
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$name = $this->frames[$i]->getAttribute('name');
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$url = new SimpleUrl($this->frames[$i]->getAttribute('src'));
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$urls[$name ? $name : $i + 1] = $this->expandUrl($url);
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}
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return $urls;
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}
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/**
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* Fetches a list of loaded frames.
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* @return array/string Just the URL for a single page.
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* @access public
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*/
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function getFrames() {
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$url = $this->expandUrl($this->getUrl());
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return $url->asString();
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}
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/**
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* Accessor for a list of all links.
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* @return array List of urls with scheme of
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* http or https and hostname.
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* @access public
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*/
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function getUrls() {
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$all = array();
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foreach ($this->links as $link) {
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$url = $this->getUrlFromLink($link);
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$all[] = $url->asString();
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}
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return $all;
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}
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/**
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* Accessor for URLs by the link label. Label will match
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* regardess of whitespace issues and case.
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* @param string $label Text of link.
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* @return array List of links with that label.
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* @access public
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*/
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function getUrlsByLabel($label) {
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$matches = array();
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foreach ($this->links as $link) {
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if ($link->getText() == $label) {
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$matches[] = $this->getUrlFromLink($link);
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}
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}
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return $matches;
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}
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/**
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* Accessor for a URL by the id attribute.
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* @param string $id Id attribute of link.
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* @return SimpleUrl URL with that id of false if none.
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* @access public
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*/
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function getUrlById($id) {
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foreach ($this->links as $link) {
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if ($link->getAttribute('id') === (string)$id) {
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return $this->getUrlFromLink($link);
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}
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}
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return false;
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}
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/**
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* Converts a link tag into a target URL.
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* @param SimpleAnchor $link Parsed link.
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* @return SimpleUrl URL with frame target if any.
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* @access private
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*/
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protected function getUrlFromLink($link) {
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$url = $this->expandUrl($link->getHref());
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if ($link->getAttribute('target')) {
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$url->setTarget($link->getAttribute('target'));
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}
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return $url;
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}
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/**
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* Expands expandomatic URLs into fully qualified
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* URLs.
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* @param SimpleUrl $url Relative URL.
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* @return SimpleUrl Absolute URL.
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* @access public
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*/
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function expandUrl($url) {
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if (! is_object($url)) {
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$url = new SimpleUrl($url);
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}
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$location = $this->getBaseUrl() ? $this->getBaseUrl() : new SimpleUrl();
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return $url->makeAbsolute($location->makeAbsolute($this->getUrl()));
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}
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/**
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* Sets the base url for the page.
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* @param string $url Base URL for page.
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*/
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function setBase($url) {
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$this->base = new SimpleUrl($url);
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}
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/**
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* Sets the title tag contents.
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* @param SimpleTitleTag $tag Title of page.
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*/
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function setTitle($tag) {
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$this->title = $tag;
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}
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/**
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* Accessor for parsed title.
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* @return string Title or false if no title is present.
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* @access public
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*/
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function getTitle() {
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if ($this->title) {
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return $this->title->getText();
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}
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return false;
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}
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/**
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* Finds a held form by button label. Will only
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* search correctly built forms.
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* @param SimpleSelector $selector Button finder.
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* @return SimpleForm Form object containing
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* the button.
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* @access public
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*/
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function getFormBySubmit($selector) {
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for ($i = 0; $i < count($this->forms); $i++) {
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if ($this->forms[$i]->hasSubmit($selector)) {
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return $this->forms[$i];
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}
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}
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return null;
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}
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/**
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* Finds a held form by image using a selector.
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* Will only search correctly built forms.
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* @param SimpleSelector $selector Image finder.
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* @return SimpleForm Form object containing
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* the image.
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* @access public
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*/
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function getFormByImage($selector) {
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for ($i = 0; $i < count($this->forms); $i++) {
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if ($this->forms[$i]->hasImage($selector)) {
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return $this->forms[$i];
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}
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}
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return null;
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}
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/**
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* Finds a held form by the form ID. A way of
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* identifying a specific form when we have control
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* of the HTML code.
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* @param string $id Form label.
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* @return SimpleForm Form object containing the matching ID.
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* @access public
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*/
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function getFormById($id) {
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for ($i = 0; $i < count($this->forms); $i++) {
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if ($this->forms[$i]->getId() == $id) {
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return $this->forms[$i];
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}
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}
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return null;
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}
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/**
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* Sets a field on each form in which the field is
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* available.
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* @param SimpleSelector $selector Field finder.
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* @param string $value Value to set field to.
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* @return boolean True if value is valid.
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* @access public
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*/
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function setField($selector, $value, $position=false) {
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$is_set = false;
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for ($i = 0; $i < count($this->forms); $i++) {
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if ($this->forms[$i]->setField($selector, $value, $position)) {
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$is_set = true;
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}
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}
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return $is_set;
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}
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/**
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* Accessor for a form element value within a page.
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* @param SimpleSelector $selector Field finder.
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* @return string/boolean A string if the field is
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* present, false if unchecked
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* and null if missing.
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* @access public
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*/
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function getField($selector) {
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for ($i = 0; $i < count($this->forms); $i++) {
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$value = $this->forms[$i]->getValue($selector);
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if (isset($value)) {
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return $value;
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}
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}
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return null;
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}
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/**
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* Turns HTML into text browser visible text. Images
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* are converted to their alt text and tags are supressed.
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* Entities are converted to their visible representation.
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* @param string $html HTML to convert.
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* @return string Plain text.
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* @access public
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*/
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static function normalise($html) {
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$text = preg_replace('#<!--.*?-->#si', '', $html);
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$text = preg_replace('#<(script|option|textarea)[^>]*>.*?</\1>#si', '', $text);
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$text = preg_replace('#<img[^>]*alt\s*=\s*("([^"]*)"|\'([^\']*)\'|([a-zA-Z_]+))[^>]*>#', ' \2\3\4 ', $text);
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$text = preg_replace('#<[^>]*>#', '', $text);
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$text = html_entity_decode($text, ENT_QUOTES);
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$text = preg_replace('#\s+#', ' ', $text);
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return trim(trim($text), "\xA0"); // TODO: The \xAO is a . Add a test for this.
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}
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}
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?>
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