skins/common/edit.js

   1 // This file is still referenced from
   2 //  tests/selenium/data/SimpleSeleniumTestDB.sql
   3 //  includes/specials/SpecialUpload.php
   4 //  /extensions/SemanticForms/specials/SF_UploadWindow2.php
   5 window.currentFocused = undefined;
   6
   7 // this function adds a toolbar button to the mwEditButtons list
   8 window.addButton = function( imageFile, speedTip, tagOpen, tagClose, sampleText, imageId, selectText ) {
   9         // Don't generate buttons for browsers which don't fully
  10         // support it.
  11         mwEditButtons.push({
  12                 'imageId': imageId,
  13                 'imageFile': imageFile,
  14                 'speedTip': speedTip,
  15                 'tagOpen': tagOpen,
  16                 'tagClose': tagClose,
  17                 'sampleText': sampleText,
  18                 'selectText': selectText
  19         });
  20 };
  21
  22 // this function adds one toolbar button from a mwEditButtons/mwCustomEditButtons item
  23 window.mwInsertEditButton = function( parent, item ) {
  24         var image = document.createElement( 'img' );
  25         image.width = 23;
  26         image.height = 22;
  27         image.className = 'mw-toolbar-editbutton';
  28         if ( item.imageId ) {
  29                 image.id = item.imageId;
  30         }
  31         image.src = item.imageFile;
  32         image.border = 0;
  33         image.alt = item.speedTip;
  34         image.title = item.speedTip;
  35         image.style.cursor = 'pointer';
  36         image.onclick = function() {
  37                 insertTags( item.tagOpen, item.tagClose, item.sampleText, item.selectText );
  38                 // click tracking
  39                 if ( ( typeof $ != 'undefined' )  && ( typeof $.trackAction != 'undefined' ) ) {
  40                         $.trackAction( 'oldedit.' + item.speedTip.replace(/ /g, '-') );
  41                 }
  42                 return false;
  43         };
  44
  45         parent.appendChild( image );
  46         return true;
  47 };
  48
  49 // this function generates the actual toolbar buttons with localized text
  50 // we use it to avoid creating the toolbar where javascript is not enabled
  51 window.mwSetupToolbar = function() {
  52         var toolbar = document.getElementById( 'toolbar' );
  53         var i = 0;
  54         if ( !toolbar ) {
  55                 return false;
  56         }
  57
  58         // Don't generate buttons for browsers which don't fully
  59         // support it.
  60         // but don't assume wpTextbox1 is always here
  61         var textboxes = document.getElementsByTagName( 'textarea' );
  62         if ( !textboxes.length ) {
  63                 // No toolbar if we can't find any textarea
  64                 return false;
  65         }
  66         // Only check for selection capability if the textarea is visible - errors will occur otherwise - just because
  67         // the textarea is not visible, doesn't mean we shouldn't build out the toolbar though - it might have been replaced
  68         // with some other kind of control
  69         if ( textboxes[0].style.display != 'none' ) {
  70                 if ( !( document.selection && document.selection.createRange )
  71                         && textboxes[0].selectionStart === null ) {
  72                         return false;
  73                 }
  74         }
  75         for ( i = 0; i < mwEditButtons.length; i++ ) {
  76                 mwInsertEditButton( toolbar, mwEditButtons[i] );
  77         }
  78         for ( i = 0; i < mwCustomEditButtons.length; i++ ) {
  79                 mwInsertEditButton( toolbar, mwCustomEditButtons[i] );
  80         }
  81         return true;
  82 };
  83
  84 // apply tagOpen/tagClose to selection in textarea,
  85 // use sampleText instead of selection if there is none
  86 window.insertTags = function( tagOpen, tagClose, sampleText, selectText) {
  87         if ( typeof $ != 'undefined' && typeof $.fn.textSelection != 'undefined' && currentFocused &&
  88                         ( currentFocused.nodeName.toLowerCase() == 'iframe' || currentFocused.id == 'wpTextbox1' ) ) {
  89                 $( '#wpTextbox1' ).textSelection(
  90                         'encapsulateSelection', { 'pre': tagOpen, 'peri': sampleText, 'post': tagClose }
  91                 );
  92                 return;
  93         }
  94         var txtarea;
  95         if ( document.editform ) {
  96                 txtarea = currentFocused;
  97         } else {
  98                 // some alternate form? take the first one we can find
  99                 var areas = document.getElementsByTagName( 'textarea' );
 100                 txtarea = areas[0];
 101         }
 102         var selText, isSample = false;
 103
 104         function checkSelectedText() {
 105                 if ( !selText ) {
 106                         selText = sampleText;
 107                         isSample = true;
 108                 } else if ( selText.charAt(selText.length - 1) == ' ' ) { // exclude ending space char
 109                         selText = selText.substring(0, selText.length - 1);
 110                         tagClose += ' ';
 111                 }
 112         }
 113
 114         if ( document.selection  && document.selection.createRange ) { // IE/Opera
 115                 // save window scroll position
 116                 var winScroll = null;
 117                 if ( document.documentElement && document.documentElement.scrollTop ) {
 118                         winScroll = document.documentElement.scrollTop;
 119                 } else if ( document.body ) {
 120                         winScroll = document.body.scrollTop;
 121                 }
 122                 // get current selection
 123                 txtarea.focus();
 124                 var range = document.selection.createRange();
 125                 selText = range.text;
 126                 // insert tags
 127                 checkSelectedText();
 128                 range.text = tagOpen + selText + tagClose;
 129                 // mark sample text as selected if not switched off by option
 130                 if ( selectText !== false ) {
 131                         if ( isSample && range.moveStart ) {
 132                                 if ( window.opera ) {
 133                                         tagClose = tagClose.replace(/\n/g,'');
 134                                 }
 135                                 range.moveStart('character', - tagClose.length - selText.length);
 136                                 range.moveEnd('character', - tagClose.length);
 137                         }
 138                         range.select();
 139                 }
 140                 // restore window scroll position
 141                 if ( document.documentElement && document.documentElement.scrollTop ) {
 142                         document.documentElement.scrollTop = winScroll;
 143                 } else if ( document.body ) {
 144                         document.body.scrollTop = winScroll;
 145                 }
 146
 147         } else if ( txtarea.selectionStart || txtarea.selectionStart == '0' ) { // Mozilla
 148                 // save textarea scroll position
 149                 var textScroll = txtarea.scrollTop;
 150                 // get current selection
 151                 txtarea.focus();
 152                 var startPos = txtarea.selectionStart;
 153                 var endPos = txtarea.selectionEnd;
 154                 selText = txtarea.value.substring( startPos, endPos );
 155                 // insert tags
 156                 checkSelectedText();
 157                 txtarea.value = txtarea.value.substring(0, startPos)
 158                         + tagOpen + selText + tagClose
 159                         + txtarea.value.substring(endPos, txtarea.value.length);
 160                 // set new selection
 161                 if ( isSample && ( selectText !== false )) {
 162                         txtarea.selectionStart = startPos + tagOpen.length;
 163                         txtarea.selectionEnd = startPos + tagOpen.length + selText.length;
 164                 } else {
 165                         txtarea.selectionStart = startPos + tagOpen.length + selText.length + tagClose.length;
 166                         txtarea.selectionEnd = txtarea.selectionStart;
 167                 }
 168                 // restore textarea scroll position
 169                 txtarea.scrollTop = textScroll;
 170         }
 171
 172 };
 173
 174 /**
 175  * Restore the edit box scroll state following a preview operation,
 176  * and set up a form submission handler to remember this state
 177  */
 178 window.scrollEditBox = function() {
 179         var editBox = document.getElementById( 'wpTextbox1' );
 180         var scrollTop = document.getElementById( 'wpScrolltop' );
 181         var editForm = document.getElementById( 'editform' );
 182         if( editForm && editBox && scrollTop ) {
 183                 if( scrollTop.value ) {
 184                         editBox.scrollTop = scrollTop.value;
 185                 }
 186                 addHandler( editForm, 'submit', function() {
 187                         scrollTop.value = editBox.scrollTop;
 188                 } );
 189         }
 190 };
 191 hookEvent( 'load', scrollEditBox );
 192 hookEvent( 'load', mwSetupToolbar );
 193 hookEvent( 'load', function() {
 194         currentFocused = document.getElementById( 'wpTextbox1' );
 195         // http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html
 196         // focus does not bubble normally, but using a trick we can do event delegation
 197         // on the focus event on all text inputs to make the toolbox usable on all of them
 198         var editForm = document.getElementById( 'editform' );
 199         if ( !editForm ) {
 200                 return;
 201         }
 202         function onfocus( e ) {
 203                 var elm = e.target || e.srcElement;
 204                 if ( !elm ) {
 205                         return;
 206                 }
 207                 var tagName = elm.tagName.toLowerCase();
 208                 var type = elm.type || '';
 209                 if ( tagName !== 'textarea' && tagName !== 'input' ) {
 210                         return;
 211                 }
 212                 if ( tagName === 'input' && type.toLowerCase() !== 'text' ) {
 213                         return;
 214                 }
 215
 216                 currentFocused = elm;
 217         }
 218
 219         if ( editForm.addEventListener ) {
 220                 // Gecko, WebKit, Opera, etc... (all standards compliant browsers)
 221                 editForm.addEventListener( 'focus', onfocus, true ); // This MUST be true to work
 222         } else if ( editForm.attachEvent ) {
 223                 // IE needs a specific trick here since it doesn't support the standard
 224                 editForm.attachEvent( 'onfocusin', function() { onfocus( event ); } );
 225         }
 226
 227         // HACK: make currentFocused work with the usability iframe
 228         // With proper focus detection support (HTML 5!) this'll be much cleaner
 229         if ( typeof $ != 'undefined' ) {
 230                 var iframe = $( '.wikiEditor-ui-text iframe' );
 231                 if ( iframe.length > 0 ) {
 232                         $( iframe.get( 0 ).contentWindow.document )
 233                                 .add( iframe.get( 0 ).contentWindow.document.body ) // for IE
 234                                 .focus( function() { currentFocused = iframe.get( 0 ); } );
 235                 }
 236         }
 237
 238 } );