resources/mediawiki.action/mediawiki.action.edit.js

   1 /**
   2  * Interface for the classic edit toolbar.
   3  *
   4  * @class mw.toolbar
   5  * @singleton
   6  */
   7 ( function ( mw, $ ) {
   8         var toolbar, isReady, $toolbar, queue, slice, currentFocused;
   9
  10         /**
  11          * Internal helper that does the actual insertion of the button into the toolbar.
  12          *
  13          * See #addButton for parameter documentation.
  14          *
  15          * @private
  16          */
  17         function insertButton( b, speedTip, tagOpen, tagClose, sampleText, imageId ) {
  18                 // Backwards compatibility
  19                 if ( typeof b !== 'object' ) {
  20                         b = {
  21                                 imageFile: b,
  22                                 speedTip: speedTip,
  23                                 tagOpen: tagOpen,
  24                                 tagClose: tagClose,
  25                                 sampleText: sampleText,
  26                                 imageId: imageId
  27                         };
  28                 }
  29                 var $image = $( '<img>' ).attr( {
  30                         width : 23,
  31                         height: 22,
  32                         src   : b.imageFile,
  33                         alt   : b.speedTip,
  34                         title : b.speedTip,
  35                         id    : b.imageId || undefined,
  36                         'class': 'mw-toolbar-editbutton'
  37                 } ).click( function () {
  38                         toolbar.insertTags( b.tagOpen, b.tagClose, b.sampleText );
  39                         return false;
  40                 } );
  41
  42                 $toolbar.append( $image );
  43         }
  44
  45         isReady = false;
  46         $toolbar = false;
  47         queue = [];
  48         slice = queue.slice;
  49
  50         toolbar = {
  51
  52                 /**
  53                  * Add buttons to the toolbar.
  54                  *
  55                  * Takes care of race conditions and time-based dependencies
  56                  * by placing buttons in a queue if this method is called before
  57                  * the toolbar is created.
  58                  *
  59                  * For compatiblity, passing the properties listed below as separate arguments
  60                  * (in the listed order) is also supported.
  61                  *
  62                  * @param {Object} button Object with the following properties:
  63                  * @param {string} button.imageFile
  64                  * @param {string} button.speedTip
  65                  * @param {string} button.tagOpen
  66                  * @param {string} button.tagClose
  67                  * @param {string} button.sampleText
  68                  * @param {string} [button.imageId]
  69                  */
  70                 addButton: function () {
  71                         if ( isReady ) {
  72                                 insertButton.apply( toolbar, arguments );
  73                         } else {
  74                                 // Convert arguments list to array
  75                                 queue.push( slice.call( arguments ) );
  76                         }
  77                 },
  78
  79                 /**
  80                  * Apply tagOpen/tagClose to selection in currently focused textarea.
  81                  *
  82                  * Uses `sampleText` if selection is empty.
  83                  *
  84                  * @param {string} tagOpen
  85                  * @param {string} tagClose
  86                  * @param {string} sampleText
  87                  */
  88                 insertTags: function ( tagOpen, tagClose, sampleText ) {
  89                         if ( currentFocused && currentFocused.length ) {
  90                                 currentFocused.textSelection(
  91                                         'encapsulateSelection', {
  92                                                 'pre': tagOpen,
  93                                                 'peri': sampleText,
  94                                                 'post': tagClose
  95                                         }
  96                                 );
  97                         }
  98                 },
  99
 100                 // For backwards compatibility,
 101                 // Called from EditPage.php, maybe in other places as well.
 102                 init: function () {}
 103         };
 104
 105         // Legacy (for compatibility with the code previously in skins/common.edit.js)
 106         window.addButton = toolbar.addButton;
 107         window.insertTags = toolbar.insertTags;
 108
 109         // Explose API publicly
 110         mw.toolbar = toolbar;
 111
 112         $( document ).ready( function () {
 113                 var buttons, i, b, $iframe, editBox, scrollTop, $editForm;
 114
 115                 // currentFocus is used to determine where to insert tags
 116                 currentFocused = $( '#wpTextbox1' );
 117
 118                 // Populate the selector cache for $toolbar
 119                 $toolbar = $( '#toolbar' );
 120
 121                 // Legacy: Merge buttons from mwCustomEditButtons
 122                 buttons = [].concat( queue, window.mwCustomEditButtons );
 123                 // Clear queue
 124                 queue.length = 0;
 125                 for ( i = 0; i < buttons.length; i++ ) {
 126                         b = buttons[i];
 127                         if ( $.isArray( b ) ) {
 128                                 // Forwarded arguments array from mw.toolbar.addButton
 129                                 insertButton.apply( toolbar, b );
 130                         } else {
 131                                 // Raw object from legacy mwCustomEditButtons
 132                                 insertButton( b );
 133                         }
 134                 }
 135
 136                 // This causes further calls to addButton to go to insertion directly
 137                 // instead of to the toolbar.buttons queue.
 138                 // It is important that this is after the one and only loop through
 139                 // the the toolbar.buttons queue
 140                 isReady = true;
 141
 142                 // Make sure edit summary does not exceed byte limit
 143                 $( '#wpSummary' ).byteLimit( 255 );
 144
 145                 // Restore the edit box scroll state following a preview operation,
 146                 // and set up a form submission handler to remember this state.
 147                 editBox = document.getElementById( 'wpTextbox1' );
 148                 scrollTop = document.getElementById( 'wpScrolltop' );
 149                 $editForm = $( '#editform' );
 150                 if ( $editForm.length && editBox && scrollTop ) {
 151                         if ( scrollTop.value ) {
 152                                 editBox.scrollTop = scrollTop.value;
 153                         }
 154                         $editForm.submit( function () {
 155                                 scrollTop.value = editBox.scrollTop;
 156                         });
 157                 }
 158
 159                 // Apply to dynamically created textboxes as well as normal ones
 160                 $( document ).on( 'focus', 'textarea, input:text', function () {
 161                         currentFocused = $( this );
 162                 } );
 163
 164                 // HACK: make currentFocused work with the usability iframe
 165                 // With proper focus detection support (HTML 5!) this'll be much cleaner
 166                 // TODO: Get rid of this WikiEditor code from MediaWiki core!
 167                 $iframe = $( '.wikiEditor-ui-text iframe' );
 168                 if ( $iframe.length > 0 ) {
 169                         $( $iframe.get( 0 ).contentWindow.document )
 170                                 // for IE
 171                                 .add( $iframe.get( 0 ).contentWindow.document.body )
 172                                 .focus( function () {
 173                                         currentFocused = $iframe;
 174                                 } );
 175                 }
 176         });
 177
 178 }( mediaWiki, jQuery ) );