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 var scroll = field.scrollHeight; 164 insertAtCarret(field.id,match[1]); 165 field.scrollTop += (field.scrollHeight - scroll); 166 e.preventDefault(); // prevent enter key 167 } 168 }else if(e.keyCode == 8){ // Backspace 169 // unindent lists 170 var match = search.match(/(\n +)([*-] ?)$/); 171 if(match){ 172 var spaces = match[1].length-1; 173 174 if(spaces > 3){ // unindent one level 175 field.value = field.value.substr(0,linestart)+ 176 field.value.substr(linestart+2); 177 selection.start = selection.start - 2; 178 selection.end = selection.start; 179 }else{ // delete list point 180 field.value = field.value.substr(0,linestart)+ 181 field.value.substr(selection.start); 182 selection.start = linestart; 183 selection.end = linestart; 184 } 185 setSelection(selection); 186 e.preventDefault(); // prevent backspace 187 } 188 }else if(e.keyCode == 32){ // Space 189 // intend list item 190 var match = search.match(/(\n +)([*-] )$/); 191 if(match){ 192 field.value = field.value.substr(0,linestart)+' '+ 193 field.value.substr(linestart); 194 selection.start = selection.start + 2; 195 selection.end = selection.start; 196 setSelection(selection); 197 e.preventDefault(); // prevent space 198 } 199 } 200} 201 202//FIXME consolidate somewhere else 203addInitEvent(function(){ 204 var field = $('wiki__text'); 205 if(!field) return; 206 addEvent(field,'keypress',keyHandler); 207}); 208 209/** 210 * Determine the current section level while editing 211 * 212 * @author Andreas Gohr <gohr@cosmocode.de> 213 */ 214function currentHeadlineLevel(textboxId){ 215 var field = $(textboxId); 216 var selection = getSelection(field); 217 var search = "\n"+field.value.substr(0,selection.start); 218 var lasthl = search.lastIndexOf("\n=="); 219 if(lasthl == -1 && field.form.prefix){ 220 // we need to look in prefix context 221 search = field.form.prefix.value; 222 lasthl = search.lastIndexOf("\n=="); 223 } 224 search = search.substr(lasthl+1,6); 225 226 if(search == '======') return 1; 227 if(search.substr(0,5) == '=====') return 2; 228 if(search.substr(0,4) == '====') return 3; 229 if(search.substr(0,3) == '===') return 4; 230 if(search.substr(0,2) == '==') return 5; 231 232 return 0; 233} 234 235 236/** 237 * global var used for not saved yet warning 238 */ 239var textChanged = false; 240 241/** 242 * Check for changes before leaving the page 243 */ 244function changeCheck(msg){ 245 if(textChanged){ 246 var ok = confirm(msg); 247 if(ok){ 248 // remove a possibly saved draft using ajax 249 var dwform = $('dw__editform'); 250 if(dwform){ 251 var params = 'call=draftdel'; 252 params += '&id='+encodeURIComponent(dwform.elements.id.value); 253 254 var sackobj = new sack(DOKU_BASE + 'lib/exe/ajax.php'); 255 sackobj.AjaxFailedAlert = ''; 256 sackobj.encodeURIString = false; 257 sackobj.runAJAX(params); 258 // we send this request blind without waiting for 259 // and handling the returned data 260 } 261 } 262 return ok; 263 }else{ 264 return true; 265 } 266} 267 268/** 269 * Add changeCheck to all Links and Forms (except those with a 270 * JSnocheck class), add handlers to monitor changes 271 * 272 * Sets focus to the editbox as well 273 * 274 * @fixme this is old and crappy code. needs to be redone 275 */ 276function initChangeCheck(msg){ 277 var edit_text = document.getElementById('wiki__text'); 278 if(!edit_text) return; 279 if(edit_text.readOnly) return; 280 if(!$('dw__editform')) return; 281 282 // add change check for links 283 var links = document.getElementsByTagName('a'); 284 for(var i=0; i < links.length; i++){ 285 if(links[i].className.indexOf('JSnocheck') == -1){ 286 links[i].onclick = function(){ 287 var rc = changeCheck(msg); 288 if(window.event) window.event.returnValue = rc; 289 return rc; 290 }; 291 } 292 } 293 // add change check for forms 294 var forms = document.forms; 295 for(i=0; i < forms.length; i++){ 296 if(forms[i].className.indexOf('JSnocheck') == -1){ 297 forms[i].onsubmit = function(){ 298 var rc = changeCheck(msg); 299 if(window.event) window.event.returnValue = rc; 300 return rc; 301 }; 302 } 303 } 304 305 // reset change memory var on submit 306 var btn_save = document.getElementById('edbtn__save'); 307 btn_save.onclick = function(){ textChanged = false; }; 308 var btn_prev = document.getElementById('edbtn__preview'); 309 btn_prev.onclick = function(){ textChanged = false; }; 310 311 // add change memory setter 312 edit_text.onchange = function(){ 313 textChanged = true; //global var 314 summaryCheck(); 315 }; 316 var summary = document.getElementById('edit__summary'); 317 addEvent(summary, 'change', summaryCheck); 318 addEvent(summary, 'keyup', summaryCheck); 319 if (textChanged) summaryCheck(); 320 321 // set focus 322 edit_text.focus(); 323} 324 325/** 326 * Checks if a summary was entered - if not the style is changed 327 * 328 * @author Andreas Gohr <andi@splitbrain.org> 329 */ 330function summaryCheck(){ 331 var sum = document.getElementById('edit__summary'); 332 if(sum.value === ''){ 333 sum.className='missing'; 334 }else{ 335 sum.className='edit'; 336 } 337} 338 339 340/** 341 * Class managing the timer to display a warning on a expiring lock 342 */ 343function locktimer_class(){ 344 this.sack = null; 345 this.timeout = 0; 346 this.timerID = null; 347 this.lasttime = null; 348 this.msg = ''; 349 this.pageid = ''; 350}; 351var locktimer = new locktimer_class(); 352 locktimer.init = function(timeout,msg,draft){ 353 // init values 354 locktimer.timeout = timeout*1000; 355 locktimer.msg = msg; 356 locktimer.draft = draft; 357 locktimer.lasttime = new Date(); 358 359 if(!$('dw__editform')) return; 360 locktimer.pageid = $('dw__editform').elements.id.value; 361 if(!locktimer.pageid) return; 362 363 // init ajax component 364 locktimer.sack = new sack(DOKU_BASE + 'lib/exe/ajax.php'); 365 locktimer.sack.AjaxFailedAlert = ''; 366 locktimer.sack.encodeURIString = false; 367 locktimer.sack.onCompletion = locktimer.refreshed; 368 369 // register refresh event 370 addEvent($('dw__editform').elements.wikitext,'keypress',function(){locktimer.refresh();}); 371 372 // start timer 373 locktimer.reset(); 374 }; 375 376 /** 377 * (Re)start the warning timer 378 */ 379 locktimer.reset = function(){ 380 locktimer.clear(); 381 locktimer.timerID = window.setTimeout("locktimer.warning()", locktimer.timeout); 382 }; 383 384 /** 385 * Display the warning about the expiring lock 386 */ 387 locktimer.warning = function(){ 388 locktimer.clear(); 389 alert(locktimer.msg); 390 }; 391 392 /** 393 * Remove the current warning timer 394 */ 395 locktimer.clear = function(){ 396 if(locktimer.timerID !== null){ 397 window.clearTimeout(locktimer.timerID); 398 locktimer.timerID = null; 399 } 400 }; 401 402 /** 403 * Refresh the lock via AJAX 404 * 405 * Called on keypresses in the edit area 406 */ 407 locktimer.refresh = function(){ 408 var now = new Date(); 409 // refresh every minute only 410 if(now.getTime() - locktimer.lasttime.getTime() > 30*1000){ //FIXME decide on time 411 var params = 'call=lock&id='+encodeURIComponent(locktimer.pageid); 412 if(locktimer.draft){ 413 var dwform = $('dw__editform'); 414 params += '&prefix='+encodeURIComponent(dwform.elements.prefix.value); 415 params += '&wikitext='+encodeURIComponent(dwform.elements.wikitext.value); 416 params += '&suffix='+encodeURIComponent(dwform.elements.suffix.value); 417 params += '&date='+encodeURIComponent(dwform.elements.date.value); 418 } 419 locktimer.sack.runAJAX(params); 420 locktimer.lasttime = now; 421 } 422 }; 423 424 425 /** 426 * Callback. Resets the warning timer 427 */ 428 locktimer.refreshed = function(){ 429 var data = this.response; 430 var error = data.charAt(0); 431 data = data.substring(1); 432 433 $('draft__status').innerHTML=data; 434 if(error != '1') return; // locking failed 435 locktimer.reset(); 436 }; 437// end of locktimer class functions 438 439