1 dump('entering util.list.js\n');
3 if (typeof main == 'undefined') main = {};
4 util.list = function (id) {
6 this.node = document.getElementById(id);
8 if (!this.node) throw('Could not find element ' + id);
9 switch(this.node.nodeName) {
13 throw(this.node.nodeName + ' not yet supported'); break;
14 default: throw(this.node.nodeName + ' not supported'); break;
17 JSAN.use('util.error'); this.error = new util.error();
22 util.list.prototype = {
24 'init' : function (params) {
26 JSAN.use('util.widgets');
28 if (typeof params.map_row_to_column == 'function') this.map_row_to_column = params.map_row_to_column;
29 if (typeof params.retrieve_row == 'function') this.retrieve_row = params.retrieve_row;
31 this.prebuilt = false;
32 if (typeof params.prebuilt != 'undefined') this.prebuilt = params.prebuilt;
34 if (typeof params.columns == 'undefined') throw('util.list.init: No columns');
35 this.columns = params.columns;
37 switch(this.node.nodeName) {
38 case 'tree' : this._init_tree(params); break;
39 case 'listbox' : this._init_listbox(params); break;
40 default: throw('NYI: Need ._init() for ' + this.node.nodeName); break;
44 '_init_tree' : function (params) {
48 this.treechildren = this.node.lastChild;
51 var treecols = document.createElement('treecols');
52 this.node.appendChild(treecols);
54 for (var i = 0; i < this.columns.length; i++) {
55 var treecol = document.createElement('treecol');
56 for (var j in this.columns[i]) {
57 treecol.setAttribute(j,this.columns[i][j]);
59 treecols.appendChild(treecol);
60 var splitter = document.createElement('splitter');
61 splitter.setAttribute('class','tree-splitter');
62 treecols.appendChild(splitter);
65 var treechildren = document.createElement('treechildren');
66 this.node.appendChild(treechildren);
67 this.treechildren = treechildren;
69 if (typeof params.on_select == 'function') {
70 this.node.addEventListener(
76 if (typeof params.on_click == 'function') {
77 this.node.addEventListener(
84 this.node.addEventListener(
86 function(ev) { obj.detect_visible(); },
90 this.node.addEventListener(
92 function(ev) { obj.auto_retrieve(); },
95 this.node.addEventListener(
97 function(ev) { obj.auto_retrieve(); },
100 window.addEventListener(
102 function(ev) { obj.auto_retrieve(); },
105 /* FIXME -- find events on scrollbar to trigger this */
106 //obj.detect_visible_polling();
108 var scrollbar = document.getAnonymousNodes( document.getAnonymousNodes(this.node)[1] )[1];
109 var slider = document.getAnonymousNodes( scrollbar )[2];
110 alert('scrollbar = ' + scrollbar.nodeName + ' grippy = ' + slider.nodeName);
111 scrollbar.addEventListener('click',function(){alert('sb click');},false);
112 scrollbar.addEventListener('command',function(){alert('sb command');},false);
113 scrollbar.addEventListener('scroll',function(){alert('sb scroll');},false);
114 slider.addEventListener('click',function(){alert('slider click');},false);
115 slider.addEventListener('command',function(){alert('slider command');},false);
116 slider.addEventListener('scroll',function(){alert('slider scroll');},false);
118 this.node.addEventListener('scroll',function(){ obj.auto_retrieve(); },false);
121 '_init_listbox' : function (params) {
124 var listhead = document.createElement('listhead');
125 this.node.appendChild(listhead);
127 var listcols = document.createElement('listcols');
128 this.node.appendChild(listcols);
130 for (var i = 0; i < this.columns.length; i++) {
131 var listheader = document.createElement('listheader');
132 listhead.appendChild(listheader);
133 var listcol = document.createElement('listcol');
134 listcols.appendChild(listcol);
135 for (var j in this.columns[i]) {
136 listheader.setAttribute(j,this.columns[i][j]);
137 listcol.setAttribute(j,this.columns[i][j]);
143 'clear' : function (params) {
144 switch (this.node.nodeName) {
145 case 'tree' : this._clear_tree(params); break;
146 case 'listbox' : this._clear_listbox(params); break;
147 default: throw('NYI: Need .clear() for ' + this.node.nodeName); break;
149 this.error.sdump('D_LIST','Clearing list ' + this.node.getAttribute('id') + '\n');
152 '_clear_tree' : function(params) {
154 if (obj.error.sdump_levels.D_LIST_DUMP_ON_CLEAR) {
155 obj.error.sdump('D_LIST_DUMP_ON_CLEAR',obj.dump());
157 if (obj.error.sdump_levels.D_LIST_DUMP_WITH_KEYS_ON_CLEAR) {
158 obj.error.sdump('D_LIST_DUMP_WITH_KEYS_ON_CLEAR',obj.dump_with_keys());
160 while (obj.treechildren.lastChild) obj.treechildren.removeChild( obj.treechildren.lastChild );
163 '_clear_listbox' : function(params) {
165 var nl = this.node.getElementsByTagName('listitem');
166 for (var i = 0; i < nl.length; i++) {
169 for (var i = 0; i < items.length; i++) {
170 this.node.removeChild(items[i]);
174 'append' : function (params) {
176 switch (this.node.nodeName) {
177 case 'tree' : rnode = this._append_to_tree(params); break;
178 case 'listbox' : rnode = this._append_to_listbox(params); break;
179 default: throw('NYI: Need .append() for ' + this.node.nodeName); break;
181 if (rnode && params.attributes) {
182 for (var i in params.attributes) {
183 rnode.setAttribute(i,params.attributes[i]);
189 '_append_to_tree' : function (params) {
193 if (typeof params.row == 'undefined') throw('util.list.append: Object must contain a row');
195 var s = ('util.list.append: params = ' + (params) + '\n');
197 var treechildren_node = this.treechildren;
199 if (params.node && params.node.nodeName == 'treeitem') {
200 params.node.setAttribute('container','true'); /* params.node.setAttribute('open','true'); */
201 if (params.node.lastChild.nodeName == 'treechildren') {
202 treechildren_node = params.node.lastChild;
204 treechildren_node = document.createElement('treechildren');
205 params.node.appendChild(treechildren_node);
209 var treeitem = document.createElement('treeitem');
210 treeitem.setAttribute('retrieve_id',params.retrieve_id);
211 treechildren_node.appendChild( treeitem );
212 var treerow = document.createElement('treerow');
213 treeitem.appendChild( treerow );
215 s += ('tree = ' + this.node + ' treechildren = ' + treechildren_node + '\n');
216 s += ('treeitem = ' + treeitem + ' treerow = ' + treerow + '\n');
218 if (typeof params.retrieve_row == 'function' || typeof this.retrieve_row == 'function') {
220 treerow.setAttribute('retrieve_id',params.retrieve_id);
221 obj.put_retrieving_label(treerow);
222 treerow.addEventListener(
225 //dump('fleshing = ' + params.retrieve_id + '\n');
228 params.row_node = treeitem;
229 params.on_retrieve = function(row) {
231 obj._map_row_to_treecell(params,treerow);
234 if (typeof params.retrieve_row == 'function') {
236 row = params.retrieve_row( params );
240 if (typeof obj.retrieve_row == 'function') {
242 row = obj.retrieve_row( params );
247 treerow.setAttribute('retrieved','true');
254 util.widgets.dispatch('flesh',treerow);
259 obj.put_retrieving_label(treerow);
260 treerow.addEventListener(
263 //dump('fleshing anon\n');
264 obj._map_row_to_treecell(params,treerow);
265 treerow.setAttribute('retrieved','true');
272 util.widgets.dispatch('flesh',treerow);
277 this.error.sdump('D_LIST',s);
279 setTimeout( function() { obj.auto_retrieve(); }, 0 );
284 'put_retrieving_label' : function(treerow) {
289 dump('put_retrieving_label. columns = ' + js2JSON(obj.columns) + '\n');
290 while( obj.columns[cols_idx] && obj.columns[cols_idx].hidden && obj.columns[cols_idx].hidden == 'true') {
291 dump('\t' + cols_idx);
292 var treecell = document.createElement('treecell');
293 treerow.appendChild(treecell);
297 for (var i = 0; i < obj.columns.length; i++) {
298 var treecell = document.createElement('treecell'); treecell.setAttribute('label','Retrieving...');
299 treerow.appendChild(treecell);
302 dump('\t' + cols_idx + '\n');
309 'detect_visible' : function() {
312 //dump('detect_visible obj.node = ' + obj.node + '\n');
313 /* FIXME - this is a hack.. if the implementation of tree changes, this could break */
314 var scrollbar = document.getAnonymousNodes( document.getAnonymousNodes(obj.node)[1] )[1];
315 var curpos = scrollbar.getAttribute('curpos');
316 var maxpos = scrollbar.getAttribute('maxpos');
317 //alert('curpos = ' + curpos + ' maxpos = ' + maxpos + ' obj.curpos = ' + obj.curpos + ' obj.maxpos = ' + obj.maxpos + '\n');
318 if ((curpos != obj.curpos) || (maxpos != obj.maxpos)) {
319 if ( obj.auto_retrieve() > 0 ) {
320 obj.curpos = curpos; obj.maxpos = maxpos;
323 } catch(E) { alert(E); }
326 'detect_visible_polling' : function() {
328 //alert('detect_visible_polling');
330 obj.detect_visible();
331 setTimeout(function() { try { obj.detect_visible_polling(); } catch(E) { alert(E); } },2000);
337 'auto_retrieve' : function () {
339 if (!obj.auto_retrieve_in_progress) {
340 obj.auto_retrieve_in_progress = true;
344 //alert('auto_retrieve\n');
346 var startpos = obj.node.treeBoxObject.getFirstVisibleRow();
347 var endpos = obj.node.treeBoxObject.getLastVisibleRow();
348 if (startpos > endpos) endpos = obj.node.treeBoxObject.getPageLength();
349 //dump('startpos = ' + startpos + ' endpos = ' + endpos + '\n');
350 for (var i = startpos; i < endpos + 2; i++) {
352 //dump('trying index ' + i + '\n');
353 var item = obj.node.contentView.getItemAtIndex(i).firstChild;
354 if (item && item.getAttribute('retrieved') != 'true' ) {
355 //dump('\tgot an unfleshed item = ' + item + ' = ' + item.nodeName + '\n');
356 util.widgets.dispatch('flesh',item); count++;
359 //dump(i + ' : ' + E + '\n');
362 obj.auto_retrieve_in_progress = false;
364 } catch(E) { alert(E); }
370 '_append_to_listbox' : function (params) {
374 if (typeof params.row == 'undefined') throw('util.list.append: Object must contain a row');
376 var s = ('util.list.append: params = ' + (params) + '\n');
378 var listitem = document.createElement('listitem');
380 s += ('listbox = ' + this.node + ' listitem = ' + listitem + '\n');
382 if (typeof params.retrieve_row == 'function' || typeof this.retrieve_row == 'function') {
386 listitem.setAttribute('retrieve_id',params.retrieve_id);
387 //FIXME//Make async and fire when row is visible in list
390 params.row_node = listitem;
391 params.on_retrieve = function(row) {
393 obj._map_row_to_listcell(params,listitem);
394 obj.node.appendChild( listitem );
397 if (typeof params.retrieve_row == 'function') {
399 row = params.retrieve_row( params );
403 if (typeof obj.retrieve_row == 'function') {
405 row = obj.retrieve_row( params );
412 this._map_row_to_listcell(params,listitem);
413 this.node.appendChild( listitem );
416 this.error.sdump('D_LIST',s);
421 '_map_row_to_treecell' : function(params,treerow) {
423 util.widgets.remove_children(treerow);
424 for (var i = 0; i < this.columns.length; i++) {
425 var treecell = document.createElement('treecell');
427 if (params.skip_columns && (params.skip_columns.indexOf(i) != -1)) {
428 treecell.setAttribute('label',label);
429 treerow.appendChild( treecell );
430 s += ('treecell = ' + treecell + ' with label = ' + label + '\n');
433 if (params.skip_all_columns_except && (params.skip_all_columns_except.indexOf(i) == -1)) {
434 treecell.setAttribute('label',label);
435 treerow.appendChild( treecell );
436 s += ('treecell = ' + treecell + ' with label = ' + label + '\n');
439 if (typeof params.map_row_to_column == 'function') {
441 label = params.map_row_to_column(params.row,this.columns[i]);
445 if (typeof this.map_row_to_column == 'function') {
447 label = this.map_row_to_column(params.row,this.columns[i]);
451 throw('No map_row_to_column function');
455 treecell.setAttribute('label',label);
456 treerow.appendChild( treecell );
457 s += ('treecell = ' + treecell + ' with label = ' + label + '\n');
459 this.error.sdump('D_LIST',s);
462 '_map_row_to_listcell' : function(params,listitem) {
464 for (var i = 0; i < this.columns.length; i++) {
466 if (typeof params.map_row_to_column == 'function') {
468 value = params.map_row_to_column(params.row,this.columns[i]);
472 if (typeof this.map_row_to_column == 'function') {
474 value = this.map_row_to_column(params.row,this.columns[i]);
477 if (typeof value == 'string' || typeof value == 'number') {
478 var listcell = document.createElement('listcell');
479 listcell.setAttribute('label',value);
480 listitem.appendChild(listcell);
481 s += ('listcell = ' + listcell + ' with label = ' + value + '\n');
483 listitem.appendChild(value);
484 s += ('listcell = ' + value + ' is really a ' + value.nodeName + '\n');
487 this.error.sdump('D_LIST',s);
490 'retrieve_selection' : function(params) {
491 switch(this.node.nodeName) {
492 case 'tree' : return this._retrieve_selection_from_tree(params); break;
493 default: throw('NYI: Need ._retrieve_selection_from_() for ' + this.node.nodeName); break;
497 '_retrieve_selection_from_tree' : function(params) {
499 var start = new Object();
500 var end = new Object();
501 var numRanges = this.node.view.selection.getRangeCount();
502 for (var t=0; t<numRanges; t++){
503 this.node.view.selection.getRangeAt(t,start,end);
504 for (var v=start.value; v<=end.value; v++){
505 var i = this.node.contentView.getItemAtIndex(v);
512 'dump' : function(params) {
513 switch(this.node.nodeName) {
514 case 'tree' : return this._dump_tree(params); break;
515 default: throw('NYI: Need .dump() for ' + this.node.nodeName); break;
519 '_dump_tree' : function(params) {
521 for (var i = 0; i < this.treechildren.childNodes.length; i++) {
523 var treeitem = this.treechildren.childNodes[i];
524 var treerow = treeitem.firstChild;
525 for (var j = 0; j < treerow.childNodes.length; j++) {
526 row.push( treerow.childNodes[j].getAttribute('label') );
533 'dump_with_keys' : function(params) {
534 switch(this.node.nodeName) {
535 case 'tree' : return this._dump_tree_with_keys(params); break;
536 default: throw('NYI: Need .dump_with_keys() for ' + this.node.nodeName); break;
541 '_dump_tree_with_keys' : function(params) {
544 for (var i = 0; i < this.treechildren.childNodes.length; i++) {
546 var treeitem = this.treechildren.childNodes[i];
547 var treerow = treeitem.firstChild;
548 for (var j = 0; j < treerow.childNodes.length; j++) {
549 row[ obj.columns[j].id ] = treerow.childNodes[j].getAttribute('label');
556 'dump_retrieve_ids' : function(params) {
557 switch(this.node.nodeName) {
558 case 'tree' : return this._dump_retrieve_ids_tree(params); break;
559 default: throw('NYI: Need .dump_retrieve_ids() for ' + this.node.nodeName); break;
563 '_dump_retrieve_ids_tree' : function(params) {
565 for (var i = 0; i < this.treechildren.childNodes.length; i++) {
566 var treeitem = this.treechildren.childNodes[i];
567 dump.push( treeitem.getAttribute('retrieve_id') );
573 dump('exiting util.list.js\n');