1/** 2 * Functions for text editing (toolbar stuff) 3 * 4 * @todo most of the stuff in here should be revamped and then moved to toolbar.js 5 * @author Andreas Gohr <andi@splitbrain.org> 6 */ 7 8/** 9 * Creates a toolbar button through the DOM 10 * 11 * Style the buttons through the toolbutton class 12 * 13 * @author Andreas Gohr <andi@splitbrain.org> 14 */ 15function createToolButton(icon,label,key,id){ 16 var btn = document.createElement('button'); 17 var ico = document.createElement('img'); 18 19 // preapare the basic button stuff 20 btn.className = 'toolbutton'; 21 btn.title = label; 22 if(key){ 23 btn.title += ' ['+key.toUpperCase()+']'; 24 btn.accessKey = key; 25 } 26 27 // set IDs if given 28 if(id){ 29 btn.id = id; 30 ico.id = id+'_ico'; 31 } 32 33 // create the icon and add it to the button 34 if(icon.substr(0,1) == '/'){ 35 ico.src = icon; 36 }else{ 37 ico.src = DOKU_BASE+'lib/images/toolbar/'+icon; 38 } 39 btn.appendChild(ico); 40 41 return btn; 42} 43 44/** 45 * Creates a picker window for inserting text 46 * 47 * The given list can be an associative array with text,icon pairs 48 * or a simple list of text. Style the picker window through the picker 49 * class or the picker buttons with the pickerbutton class. Picker 50 * windows are appended to the body and created invisible. 51 * 52 * @param string id the ID to assign to the picker 53 * @param array props the properties for the picker 54 * @param string edid the ID of the textarea 55 * @rteurn DOMobject the created picker 56 * @author Andreas Gohr <andi@splitbrain.org> 57 */ 58function createPicker(id,props,edid){ 59 var icobase = props['icobase']; 60 var list = props['list']; 61 62 // create the wrapping div 63 var picker = document.createElement('div'); 64 picker.className = 'picker'; 65 if(props['class']){ 66 picker.className += ' '+props['class']; 67 } 68 picker.id = id; 69 picker.style.position = 'absolute'; 70 picker.style.marginLeft = '-10000px'; // no display:none, to keep access keys working 71 picker.style.marginTop = '-10000px'; 72 73 for(var key in list){ 74 if (!list.hasOwnProperty(key)) continue; 75 76 if(isNaN(key)){ 77 // associative array -> treat as image/value pairs 78 var btn = document.createElement('button'); 79 btn.className = 'pickerbutton'; 80 var ico = document.createElement('img'); 81 if(list[key].substr(0,1) == '/'){ 82 ico.src = list[key]; 83 }else{ 84 ico.src = DOKU_BASE+'lib/images/'+icobase+'/'+list[key]; 85 } 86 btn.title = key; 87 btn.appendChild(ico); 88 addEvent(btn,'click',bind(pickerInsert,key,edid)); 89 picker.appendChild(btn); 90 }else if(isString(list[key])){ 91 // a list of text -> treat as text picker 92 var btn = document.createElement('button'); 93 btn.className = 'pickerbutton'; 94 var txt = document.createTextNode(list[key]); 95 btn.title = list[key]; 96 btn.appendChild(txt); 97 addEvent(btn,'click',bind(pickerInsert,list[key],edid)); 98 picker.appendChild(btn); 99 }else{ 100 // a list of lists -> treat it as subtoolbar 101 initToolbar(picker,edid,list); 102 break; // all buttons handled already 103 } 104 105 } 106 var body = document.getElementsByTagName('body')[0]; 107 body.appendChild(picker); 108 return picker; 109} 110 111/** 112 * Called by picker buttons to insert Text and close the picker again 113 * 114 * @author Andreas Gohr <andi@splitbrain.org> 115 */ 116function pickerInsert(text,edid){ 117 insertAtCarret(edid,text); 118 pickerClose(); 119} 120 121/** 122 * Add button action for signature button 123 * 124 * @param DOMElement btn Button element to add the action to 125 * @param array props Associative array of button properties 126 * @param string edid ID of the editor textarea 127 * @return boolean If button should be appended 128 * @author Gabriel Birke <birke@d-scribe.de> 129 */ 130function addBtnActionSignature(btn, props, edid) { 131 if(typeof(SIG) != 'undefined' && SIG != ''){ 132 addEvent(btn,'click',bind(insertAtCarret,edid,SIG)); 133 return true; 134 } 135 return false; 136} 137 138/** 139 * Make intended formattings easier to handle 140 * 141 * Listens to all key inputs and handle indentions 142 * of lists and code blocks 143 * 144 * Currently handles space, backspce and enter presses 145 * 146 * @author Andreas Gohr <andi@splitbrain.org> 147 * @fixme handle tabs 148 */ 149function keyHandler(e){ 150 if(e.keyCode != 13 && 151 e.keyCode != 8 && 152 e.keyCode != 32) return; 153 var field = e.target; 154 var selection = getSelection(field); 155 var search = "\n"+field.value.substr(0,selection.start); 156 var linestart = Math.max(search.lastIndexOf("\n"), 157 search.lastIndexOf("\r")); //IE workaround 158 search = search.substr(linestart); 159 160 161 if(e.keyCode == 13){ // Enter 162 // keep current indention for lists and code 163 var match = search.match(/(\n +([\*-] ?)?)/); 164 if(match){ 165 var scroll = field.scrollHeight; 166 insertAtCarret(field.id,match[1]); 167 field.scrollTop += (field.scrollHeight - scroll); 168 e.preventDefault(); // prevent enter key 169 return false; 170 } 171 }else if(e.keyCode == 8){ // Backspace 172 // unindent lists 173 var match = search.match(/(\n +)([*-] ?)$/); 174 if(match){ 175 var spaces = match[1].length-1; 176 177 if(spaces > 3){ // unindent one level 178 field.value = field.value.substr(0,linestart)+ 179 field.value.substr(linestart+2); 180 selection.start = selection.start - 2; 181 selection.end = selection.start; 182 }else{ // delete list point 183 field.value = field.value.substr(0,linestart)+ 184 field.value.substr(selection.start); 185 selection.start = linestart; 186 selection.end = linestart; 187 } 188 setSelection(selection); 189 e.preventDefault(); // prevent backspace 190 return false; 191 } 192 }else if(e.keyCode == 32){ // Space 193 // intend list item 194 var match = search.match(/(\n +)([*-] )$/); 195 if(match){ 196 field.value = field.value.substr(0,linestart)+' '+ 197 field.value.substr(linestart); 198 selection.start = selection.start + 2; 199 selection.end = selection.start; 200 setSelection(selection); 201 e.preventDefault(); // prevent space 202 return false; 203 } 204 } 205} 206 207//FIXME consolidate somewhere else 208addInitEvent(function(){ 209 var field = $('wiki__text'); 210 if(!field) return; 211 addEvent(field,'keydown',keyHandler); 212}); 213 214/** 215 * Determine the current section level while editing 216 * 217 * @author Andreas Gohr <gohr@cosmocode.de> 218 */ 219function currentHeadlineLevel(textboxId){ 220 var field = $(textboxId); 221 var selection = getSelection(field); 222 var search = "\n"+field.value.substr(0,selection.start); 223 var lasthl = search.lastIndexOf("\n=="); 224 if(lasthl == -1 && field.form.prefix){ 225 // we need to look in prefix context 226 search = field.form.prefix.value; 227 lasthl = search.lastIndexOf("\n=="); 228 } 229 search = search.substr(lasthl+1,6); 230 231 if(search == '======') return 1; 232 if(search.substr(0,5) == '=====') return 2; 233 if(search.substr(0,4) == '====') return 3; 234 if(search.substr(0,3) == '===') return 4; 235 if(search.substr(0,2) == '==') return 5; 236 237 return 0; 238} 239 240 241/** 242 * global var used for not saved yet warning 243 */ 244var textChanged = false; 245 246/** 247 * Check for changes before leaving the page 248 */ 249function changeCheck(msg){ 250 if(textChanged){ 251 var ok = confirm(msg); 252 if(ok){ 253 // remove a possibly saved draft using ajax 254 var dwform = $('dw__editform'); 255 if(dwform){ 256 var params = 'call=draftdel'; 257 params += '&id='+encodeURIComponent(dwform.elements.id.value); 258 259 var sackobj = new sack(DOKU_BASE + 'lib/exe/ajax.php'); 260 sackobj.AjaxFailedAlert = ''; 261 sackobj.encodeURIString = false; 262 sackobj.runAJAX(params); 263 // we send this request blind without waiting for 264 // and handling the returned data 265 } 266 } 267 return ok; 268 }else{ 269 return true; 270 } 271} 272 273/** 274 * Add changeCheck to all Links and Forms (except those with a 275 * JSnocheck class), add handlers to monitor changes 276 * 277 * Sets focus to the editbox as well 278 * 279 * @fixme this is old and crappy code. needs to be redone 280 */ 281function initChangeCheck(msg){ 282 var edit_text = document.getElementById('wiki__text'); 283 if(!edit_text) return; 284 if(edit_text.readOnly) return; 285 if(!$('dw__editform')) return; 286 287 // add change check for links 288 var links = document.getElementsByTagName('a'); 289 for(var i=0; i < links.length; i++){ 290 if(links[i].className.indexOf('JSnocheck') == -1){ 291 links[i].onclick = function(){ 292 var rc = changeCheck(msg); 293 if(window.event) window.event.returnValue = rc; 294 return rc; 295 }; 296 } 297 } 298 // add change check for forms 299 var forms = document.forms; 300 for(i=0; i < forms.length; i++){ 301 if(forms[i].className.indexOf('JSnocheck') == -1){ 302 forms[i].onsubmit = function(){ 303 var rc = changeCheck(msg); 304 if(window.event) window.event.returnValue = rc; 305 return rc; 306 }; 307 } 308 } 309 310 // reset change memory var on submit 311 var btn_save = document.getElementById('edbtn__save'); 312 btn_save.onclick = function(){ textChanged = false; }; 313 var btn_prev = document.getElementById('edbtn__preview'); 314 btn_prev.onclick = function(){ textChanged = false; }; 315 316 // add change memory setter 317 edit_text.onchange = function(){ 318 textChanged = true; //global var 319 summaryCheck(); 320 }; 321 var summary = document.getElementById('edit__summary'); 322 addEvent(summary, 'change', summaryCheck); 323 addEvent(summary, 'keyup', summaryCheck); 324 if (textChanged) summaryCheck(); 325 326 // set focus 327 edit_text.focus(); 328} 329 330/** 331 * Checks if a summary was entered - if not the style is changed 332 * 333 * @author Andreas Gohr <andi@splitbrain.org> 334 */ 335function summaryCheck(){ 336 var sum = document.getElementById('edit__summary'); 337 if(sum.value === ''){ 338 sum.className='missing'; 339 }else{ 340 sum.className='edit'; 341 } 342} 343 344 345/** 346 * Class managing the timer to display a warning on a expiring lock 347 */ 348function locktimer_class(){ 349 this.sack = null; 350 this.timeout = 0; 351 this.timerID = null; 352 this.lasttime = null; 353 this.msg = ''; 354 this.pageid = ''; 355}; 356var locktimer = new locktimer_class(); 357 locktimer.init = function(timeout,msg,draft){ 358 // init values 359 locktimer.timeout = timeout*1000; 360 locktimer.msg = msg; 361 locktimer.draft = draft; 362 locktimer.lasttime = new Date(); 363 364 if(!$('dw__editform')) return; 365 locktimer.pageid = $('dw__editform').elements.id.value; 366 if(!locktimer.pageid) return; 367 368 // init ajax component 369 locktimer.sack = new sack(DOKU_BASE + 'lib/exe/ajax.php'); 370 locktimer.sack.AjaxFailedAlert = ''; 371 locktimer.sack.encodeURIString = false; 372 locktimer.sack.onCompletion = locktimer.refreshed; 373 374 // register refresh event 375 addEvent($('dw__editform').elements.wikitext,'keypress',function(){locktimer.refresh();}); 376 377 // start timer 378 locktimer.reset(); 379 }; 380 381 /** 382 * (Re)start the warning timer 383 */ 384 locktimer.reset = function(){ 385 locktimer.clear(); 386 locktimer.timerID = window.setTimeout("locktimer.warning()", locktimer.timeout); 387 }; 388 389 /** 390 * Display the warning about the expiring lock 391 */ 392 locktimer.warning = function(){ 393 locktimer.clear(); 394 alert(locktimer.msg); 395 }; 396 397 /** 398 * Remove the current warning timer 399 */ 400 locktimer.clear = function(){ 401 if(locktimer.timerID !== null){ 402 window.clearTimeout(locktimer.timerID); 403 locktimer.timerID = null; 404 } 405 }; 406 407 /** 408 * Refresh the lock via AJAX 409 * 410 * Called on keypresses in the edit area 411 */ 412 locktimer.refresh = function(){ 413 var now = new Date(); 414 // refresh every minute only 415 if(now.getTime() - locktimer.lasttime.getTime() > 30*1000){ //FIXME decide on time 416 var params = 'call=lock&id='+encodeURIComponent(locktimer.pageid); 417 if(locktimer.draft){ 418 var dwform = $('dw__editform'); 419 params += '&prefix='+encodeURIComponent(dwform.elements.prefix.value); 420 params += '&wikitext='+encodeURIComponent(dwform.elements.wikitext.value); 421 params += '&suffix='+encodeURIComponent(dwform.elements.suffix.value); 422 params += '&date='+encodeURIComponent(dwform.elements.date.value); 423 } 424 locktimer.sack.runAJAX(params); 425 locktimer.lasttime = now; 426 } 427 }; 428 429 430 /** 431 * Callback. Resets the warning timer 432 */ 433 locktimer.refreshed = function(){ 434 var data = this.response; 435 var error = data.charAt(0); 436 data = data.substring(1); 437 438 $('draft__status').innerHTML=data; 439 if(error != '1') return; // locking failed 440 locktimer.reset(); 441 }; 442// end of locktimer class functions 443 444