1/** 2 * The DokuWiki editor features 3 * 4 * These are the advanced features of the editor. It does NOT contain any 5 * code for the toolbar buttons and it functions. See toolbar.js for that. 6 */ 7 8var dw_editor = { 9 10 /** 11 * initialize the default editor functionality 12 * 13 * All other functions can also be called separately for non-default 14 * textareas 15 */ 16 init: function(){ 17 var $editor = jQuery('#wiki__text'); 18 if($editor.length === 0) { 19 return; 20 } 21 22 dw_editor.initSizeCtl('#size__ctl',$editor); 23 24 if($editor.attr('readOnly')) { 25 return; 26 } 27 28 // in Firefox, keypress doesn't send the correct keycodes, 29 // in Opera, the default of keydown can't be prevented 30 if (jQuery.browser.opera) { 31 $editor.keypress(dw_editor.keyHandler); 32 } else { 33 $editor.keydown(dw_editor.keyHandler); 34 } 35 36 }, 37 38 /** 39 * Add the edit window size and wrap controls 40 * 41 * Initial values are read from cookie if it exists 42 * 43 * @param selector ctlarea the div to place the controls 44 * @param selector editor the textarea to control 45 */ 46 initSizeCtl: function(ctlarea,editor){ 47 var $ctl = jQuery(ctlarea), 48 $textarea = jQuery(editor); 49 50 if($ctl.length === 0 || $textarea.length === 0) { 51 return; 52 } 53 54 $textarea.css('height', DokuCookie.getValue('sizeCtl') || '300px'); 55 56 var wrp = DokuCookie.getValue('wrapCtl'); 57 if(wrp){ 58 dw_editor.setWrap($textarea[0], wrp); 59 } // else use default value 60 61 jQuery.each([ 62 ['larger', function(){dw_editor.sizeCtl(editor,100);}], 63 ['smaller', function(){dw_editor.sizeCtl(editor,-100);}], 64 ['wrap', function(){dw_editor.toggleWrap(editor);}], 65 ], function (_, img) { 66 jQuery(document.createElement('img')) 67 .attr('src', DOKU_BASE+'lib/images/' + img[0] + '.gif') 68 .click(img[1]) 69 .appendTo($ctl); 70 }); 71 }, 72 73 /** 74 * This sets the vertical size of the editbox and adjusts the cookie 75 * 76 * @param selector editor the textarea to control 77 * @param int val the relative value to resize in pixel 78 */ 79 sizeCtl: function(editor,val){ 80 var $textarea = jQuery(editor), 81 height = parseInt($textarea.css('height')) + val; 82 $textarea.css('height', height+'px'); 83 DokuCookie.setValue('sizeCtl',$textarea.css('height')); 84 }, 85 86 /** 87 * Toggle the wrapping mode of the editor textarea and adjusts the 88 * cookie 89 * 90 * @param selector editor the textarea to control 91 */ 92 toggleWrap: function(editor){ 93 var $textarea = jQuery(editor), 94 wrap = $textarea.attr('wrap'); 95 dw_editor.setWrap($textarea[0], 96 (wrap && wrap.toLowerCase() == 'off') ? 'soft' : 'off'); 97 DokuCookie.setValue('wrapCtl',$textarea.attr('wrap')); 98 }, 99 100 /** 101 * Set the wrapping mode of a textarea 102 * 103 * @author Fluffy Convict <fluffyconvict@hotmail.com> 104 * @author <shutdown@flashmail.com> 105 * @link http://news.hping.org/comp.lang.javascript.archive/12265.html 106 * @link https://bugzilla.mozilla.org/show_bug.cgi?id=41464 107 * @param DomObject textarea 108 * @param string wrapAttrValue 109 */ 110 setWrap: function(textarea, wrapAttrValue){ 111 textarea.setAttribute('wrap', wrapAttrValue); 112 113 // Fix display for mozilla 114 var parNod = textarea.parentNode; 115 var nxtSib = textarea.nextSibling; 116 parNod.removeChild(textarea); 117 parNod.insertBefore(textarea, nxtSib); 118 }, 119 120 /** 121 * Make intended formattings easier to handle 122 * 123 * Listens to all key inputs and handle indentions 124 * of lists and code blocks 125 * 126 * Currently handles space, backspce and enter presses 127 * 128 * @author Andreas Gohr <andi@splitbrain.org> 129 * @fixme handle tabs 130 * @param event e - the key press event object 131 */ 132 keyHandler: function(e){ 133 if([8, 13, 32].indexOf(e.keyCode) === -1) { 134 return; 135 } 136 var selection = getSelection(this); 137 if(selection.getLength() > 0) { 138 return; //there was text selected, keep standard behavior 139 } 140 var search = "\n"+this.value.substr(0,selection.start); 141 var linestart = Math.max(search.lastIndexOf("\n"), 142 search.lastIndexOf("\r")); //IE workaround 143 search = search.substr(linestart); 144 145 if(e.keyCode == 13){ // Enter 146 // keep current indention for lists and code 147 var match = search.match(/(\n +([\*-] ?)?)/); 148 if(match){ 149 var scroll = this.scrollHeight; 150 var match2 = search.match(/^\n +[\*-]\s*$/); 151 // Cancel list if the last item is empty (i. e. two times enter) 152 if (match2 && this.value.substr(selection.start).match(/^($|\r?\n)/)) { 153 this.value = this.value.substr(0, linestart) + "\n" + 154 this.value.substr(selection.start); 155 selection.start = linestart + 1; 156 selection.end = linestart + 1; 157 setSelection(selection); 158 } else { 159 insertAtCarret(this.id,match[1]); 160 } 161 this.scrollTop += (this.scrollHeight - scroll); 162 e.preventDefault(); // prevent enter key 163 return false; 164 } 165 }else if(e.keyCode == 8){ // Backspace 166 // unindent lists 167 var match = search.match(/(\n +)([*-] ?)$/); 168 if(match){ 169 var spaces = match[1].length-1; 170 171 if(spaces > 3){ // unindent one level 172 this.value = this.value.substr(0,linestart)+ 173 this.value.substr(linestart+2); 174 selection.start = selection.start - 2; 175 selection.end = selection.start; 176 }else{ // delete list point 177 this.value = this.value.substr(0,linestart)+ 178 this.value.substr(selection.start); 179 selection.start = linestart; 180 selection.end = linestart; 181 } 182 setSelection(selection); 183 e.preventDefault(); // prevent backspace 184 return false; 185 } 186 }else if(e.keyCode == 32){ // Space 187 // intend list item 188 var match = search.match(/(\n +)([*-] )$/); 189 if(match){ 190 this.value = this.value.substr(0,linestart)+' '+ 191 this.value.substr(linestart); 192 selection.start = selection.start + 2; 193 selection.end = selection.start; 194 setSelection(selection); 195 e.preventDefault(); // prevent space 196 return false; 197 } 198 } 199 } 200 201 202}; 203 204jQuery(dw_editor.init); 205