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