includes/installer/WebInstallerPage.php

   1 <?php
   2 /**
   3  * Base code for web installer pages.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Deployment
  22  */
  23
  24 /**
  25  * Abstract class to define pages for the web installer.
  26  *
  27  * @ingroup Deployment
  28  * @since 1.17
  29  */
  30 abstract class WebInstallerPage {
  31
  32         /**
  33          * The WebInstaller object this WebInstallerPage belongs to.
  34          *
  35          * @var WebInstaller
  36          */
  37         public $parent;
  38
  39         /**
  40          * @return string
  41          */
  42         abstract public function execute();
  43
  44         /**
  45          * @param WebInstaller $parent
  46          */
  47         public function __construct( WebInstaller $parent ) {
  48                 $this->parent = $parent;
  49         }
  50
  51         /**
  52          * Is this a slow-running page in the installer? If so, WebInstaller will
  53          * set_time_limit(0) before calling execute(). Right now this only applies
  54          * to Install and Upgrade pages
  55          *
  56          * @return bool Always false in this default implementation.
  57          */
  58         public function isSlow() {
  59                 return false;
  60         }
  61
  62         /**
  63          * @param string $html
  64          */
  65         public function addHTML( $html ) {
  66                 $this->parent->output->addHTML( $html );
  67         }
  68
  69         public function startForm() {
  70                 $this->addHTML(
  71                         "<div class=\"config-section\">\n" .
  72                         Html::openElement(
  73                                 'form',
  74                                 array(
  75                                         'method' => 'post',
  76                                         'action' => $this->parent->getUrl( array( 'page' => $this->getName() ) )
  77                                 )
  78                         ) . "\n"
  79                 );
  80         }
  81
  82         /**
  83          * @param string|bool $continue
  84          * @param string|bool $back
  85          */
  86         public function endForm( $continue = 'continue', $back = 'back' ) {
  87                 $s = "<div class=\"config-submit\">\n";
  88                 $id = $this->getId();
  89
  90                 if ( $id === false ) {
  91                         $s .= Html::hidden( 'lastPage', $this->parent->request->getVal( 'lastPage' ) );
  92                 }
  93
  94                 if ( $continue ) {
  95                         // Fake submit button for enter keypress (bug 26267)
  96                         // Messages: config-continue, config-restart, config-regenerate
  97                         $s .= Xml::submitButton(
  98                                 wfMessage( "config-$continue" )->text(),
  99                                 array(
 100                                         'name' => "enter-$continue",
 101                                         'style' => 'visibility:hidden;overflow:hidden;width:1px;margin:0'
 102                                 )
 103                         ) . "\n";
 104                 }
 105
 106                 if ( $back ) {
 107                         // Message: config-back
 108                         $s .= Xml::submitButton(
 109                                 wfMessage( "config-$back" )->text(),
 110                                 array(
 111                                         'name' => "submit-$back",
 112                                         'tabindex' => $this->parent->nextTabIndex()
 113                                 )
 114                         ) . "\n";
 115                 }
 116
 117                 if ( $continue ) {
 118                         // Messages: config-continue, config-restart, config-regenerate
 119                         $s .= Xml::submitButton(
 120                                 wfMessage( "config-$continue" )->text(),
 121                                 array(
 122                                         'name' => "submit-$continue",
 123                                         'tabindex' => $this->parent->nextTabIndex(),
 124                                 )
 125                         ) . "\n";
 126                 }
 127
 128                 $s .= "</div></form></div>\n";
 129                 $this->addHTML( $s );
 130         }
 131
 132         /**
 133          * @return string
 134          */
 135         public function getName() {
 136                 return str_replace( 'WebInstaller', '', get_class( $this ) );
 137         }
 138
 139         /**
 140          * @return string
 141          */
 142         protected function getId() {
 143                 return array_search( $this->getName(), $this->parent->pageSequence );
 144         }
 145
 146         /**
 147          * @param string $var
 148          * @param mixed $default
 149          *
 150          * @return mixed
 151          */
 152         public function getVar( $var, $default = null ) {
 153                 return $this->parent->getVar( $var, $default );
 154         }
 155
 156         /**
 157          * @param string $name
 158          * @param mixed $value
 159          */
 160         public function setVar( $name, $value ) {
 161                 $this->parent->setVar( $name, $value );
 162         }
 163
 164         /**
 165          * Get the starting tags of a fieldset.
 166          *
 167          * @param string $legend Message name
 168          *
 169          * @return string
 170          */
 171         protected function getFieldsetStart( $legend ) {
 172                 return "\n<fieldset><legend>" . wfMessage( $legend )->escaped() . "</legend>\n";
 173         }
 174
 175         /**
 176          * Get the end tag of a fieldset.
 177          *
 178          * @return string
 179          */
 180         protected function getFieldsetEnd() {
 181                 return "</fieldset>\n";
 182         }
 183
 184         /**
 185          * Opens a textarea used to display the progress of a long operation
 186          */
 187         protected function startLiveBox() {
 188                 $this->addHTML(
 189                         '<div id="config-spinner" style="display:none;">' .
 190                         '<img src="images/ajax-loader.gif" /></div>' .
 191                         '<script>jQuery( "#config-spinner" ).show();</script>' .
 192                         '<div id="config-live-log">' .
 193                         '<textarea name="LiveLog" rows="10" cols="30" readonly="readonly">'
 194                 );
 195                 $this->parent->output->flush();
 196         }
 197
 198         /**
 199          * Opposite to WebInstallerPage::startLiveBox
 200          */
 201         protected function endLiveBox() {
 202                 $this->addHTML( '</textarea></div>
 203 <script>jQuery( "#config-spinner" ).hide()</script>' );
 204                 $this->parent->output->flush();
 205         }
 206
 207 }