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vanilla 1.3.3 distro, I hope
author Charlie Root
date Thu, 04 Jan 2018 15:52:31 -0500
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1 /**
2 * Roundcube List Widget
3 *
4 * This file is part of the Roundcube Webmail client
5 *
6 * @licstart The following is the entire license notice for the
7 * JavaScript code in this file.
8 *
9 * Copyright (c) 2005-2014, The Roundcube Dev Team
10 *
11 * The JavaScript code in this page is free software: you can
12 * redistribute it and/or modify it under the terms of the GNU
13 * General Public License (GNU GPL) as published by the Free Software
14 * Foundation, either version 3 of the License, or (at your option)
15 * any later version. The code is distributed WITHOUT ANY WARRANTY;
16 * without even the implied warranty of MERCHANTABILITY or FITNESS
17 * FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
18 *
19 * As additional permission under GNU GPL version 3 section 7, you
20 * may distribute non-source (e.g., minimized or compacted) forms of
21 * that code without the copy of the GNU GPL normally required by
22 * section 4, provided you include this license notice and a URL
23 * through which recipients can access the Corresponding Source.
24 *
25 * @licend The above is the entire license notice
26 * for the JavaScript code in this file.
27 *
28 * @author Thomas Bruederli <roundcube@gmail.com>
29 * @author Charles McNulty <charles@charlesmcnulty.com>
30 *
31 * @requires jquery.js, common.js
32 */
33
34
35 /**
36 * Roundcube List Widget class
37 * @constructor
38 */
39 function rcube_list_widget(list, p)
40 {
41 // static contants
42 this.ENTER_KEY = 13;
43 this.DELETE_KEY = 46;
44 this.BACKSPACE_KEY = 8;
45
46 this.list = list ? list : null;
47 this.tagname = this.list ? this.list.nodeName.toLowerCase() : 'table';
48 this.id_regexp = /^rcmrow([a-z0-9\-_=\+\/]+)/i;
49 this.rows = {};
50 this.selection = [];
51 this.rowcount = 0;
52 this.colcount = 0;
53
54 this.subject_col = 0;
55 this.modkey = 0;
56 this.multiselect = false;
57 this.multiexpand = false;
58 this.multi_selecting = false;
59 this.draggable = false;
60 this.column_movable = false;
61 this.keyboard = false;
62 this.toggleselect = false;
63 this.aria_listbox = false;
64 this.parent_focus = true;
65
66 this.drag_active = false;
67 this.col_drag_active = false;
68 this.column_fixed = null;
69 this.last_selected = null;
70 this.shift_start = null;
71 this.focused = false;
72 this.drag_mouse_start = null;
73 this.dblclick_time = 500; // default value on MS Windows is 500
74 this.row_init = function(){}; // @deprecated; use list.addEventListener('initrow') instead
75
76 this.pointer_touch_start = 0; // start time of the touch event
77 this.pointer_touch_time = 500; // maximum time a touch should be considered a left mouse button event, after this its something else (eg contextmenu event)
78
79 // overwrite default paramaters
80 if (p && typeof p === 'object')
81 for (var n in p)
82 this[n] = p[n];
83
84 // register this instance
85 rcube_list_widget._instances.push(this);
86 };
87
88
89 rcube_list_widget.prototype = {
90
91
92 /**
93 * get all message rows from HTML table and init each row
94 */
95 init: function()
96 {
97 if (this.tagname == 'table' && this.list && this.list.tBodies[0]) {
98 this.thead = this.list.tHead;
99 this.tbody = this.list.tBodies[0];
100 }
101 else if (this.tagname != 'table' && this.list) {
102 this.tbody = this.list;
103 }
104
105 if ($(this.list).attr('role') == 'listbox') {
106 this.aria_listbox = true;
107 if (this.multiselect)
108 $(this.list).attr('aria-multiselectable', 'true');
109 }
110
111 var me = this;
112
113 if (this.tbody) {
114 this.rows = {};
115 this.rowcount = 0;
116
117 var r, len, rows = this.tbody.childNodes;
118
119 for (r=0, len=rows.length; r<len; r++) {
120 if (rows[r].nodeType == 1)
121 this.rowcount += this.init_row(rows[r]) ? 1 : 0;
122 }
123
124 this.init_header();
125 this.frame = this.list.parentNode;
126
127 // set body events
128 if (this.keyboard) {
129 rcube_event.add_listener({event:'keydown', object:this, method:'key_press'});
130
131 // allow the table element to receive focus.
132 $(this.list).attr('tabindex', '0')
133 .on('focus', function(e) { me.focus(e); });
134 }
135 }
136
137 if (this.parent_focus) {
138 this.list.parentNode.onclick = function(e) { me.focus(); };
139 }
140
141 return this;
142 },
143
144
145 /**
146 * Init list row and set mouse events on it
147 */
148 init_row: function(row)
149 {
150 row.uid = this.get_row_uid(row);
151
152 // make references in internal array and set event handlers
153 if (row && row.uid) {
154 var self = this, uid = row.uid;
155 this.rows[uid] = {uid:uid, id:row.id, obj:row};
156
157 $(row).data('uid', uid)
158 // set eventhandlers to table row (only left-button-clicks in mouseup)
159 .mousedown(function(e) { return self.drag_row(e, this.uid); })
160 .mouseup(function(e) {
161 if (e.which == 1 && !self.drag_active)
162 return self.click_row(e, this.uid);
163 else
164 return true;
165 });
166
167 // for IE and Edge differentiate between touch, touch+hold using pointer events rather than touch
168 if ((bw.ie || bw.edge) && bw.pointer) {
169 $(row).on('pointerdown', function(e) {
170 if (e.pointerType == 'touch') {
171 self.pointer_touch_start = new Date().getTime();
172 return false;
173 }
174 })
175 .on('pointerup', function(e) {
176 if (e.pointerType == 'touch') {
177 var duration = (new Date().getTime() - self.pointer_touch_start);
178 if (duration <= self.pointer_touch_time) {
179 self.drag_row(e, this.uid);
180 return self.click_row(e, this.uid);
181 }
182 }
183 });
184 }
185 else if (bw.touch && row.addEventListener) {
186 row.addEventListener('touchstart', function(e) {
187 if (e.touches.length == 1) {
188 self.touchmoved = false;
189 self.drag_row(rcube_event.touchevent(e.touches[0]), this.uid)
190 }
191 }, false);
192 row.addEventListener('touchend', function(e) {
193 if (e.changedTouches.length == 1) {
194 if (!self.touchmoved && !self.click_row(rcube_event.touchevent(e.changedTouches[0]), this.uid))
195 e.preventDefault();
196 }
197 }, false);
198 row.addEventListener('touchmove', function(e) {
199 if (e.changedTouches.length == 1) {
200 self.touchmoved = true;
201 if (self.drag_active)
202 e.preventDefault();
203 }
204 }, false);
205 }
206
207 // label the list row with the subject col as descriptive label
208 if (this.aria_listbox) {
209 var lbl_id = 'l:' + row.id;
210 $(row)
211 .attr('role', 'option')
212 .attr('aria-labelledby', lbl_id)
213 .find(this.col_tagname()).eq(this.subject_col).attr('id', lbl_id);
214 }
215
216 if (document.all)
217 row.onselectstart = function() { return false; };
218
219 this.row_init(this.rows[uid]); // legacy support
220 this.triggerEvent('initrow', this.rows[uid]);
221
222 return true;
223 }
224 },
225
226
227 /**
228 * Init list column headers and set mouse events on them
229 */
230 init_header: function()
231 {
232 if (this.thead) {
233 this.colcount = 0;
234
235 if (this.fixed_header) { // copy (modified) fixed header back to the actual table
236 $(this.list.tHead).replaceWith($(this.fixed_header).find('thead').clone());
237 $(this.list.tHead).find('th,td').attr('style', '').find('a').attr('tabindex', '-1'); // remove fixed widths
238 }
239 else if (!bw.touch && this.list.className.indexOf('fixedheader') >= 0) {
240 this.init_fixed_header();
241 }
242
243 var col, r, p = this;
244 // add events for list columns moving
245 if (this.column_movable && this.thead && this.thead.rows) {
246 for (r=0; r<this.thead.rows[0].cells.length; r++) {
247 if (this.column_fixed == r)
248 continue;
249 col = this.thead.rows[0].cells[r];
250 col.onmousedown = function(e) { return p.drag_column(e, this); };
251 this.colcount++;
252 }
253 }
254 }
255 },
256
257 init_fixed_header: function()
258 {
259 var clone = $(this.list.tHead).clone();
260
261 if (!this.fixed_header) {
262 this.fixed_header = $('<table>')
263 .attr('class', this.list.className + ' fixedcopy')
264 .attr('role', 'presentation')
265 .css({ position:'fixed' })
266 .append(clone)
267 .append('<tbody></tbody>');
268 $(this.list).before(this.fixed_header);
269
270 var me = this;
271 $(window).resize(function() { me.resize(); });
272 $(window).scroll(function() {
273 var w = $(window);
274 me.fixed_header.css({
275 marginLeft: -w.scrollLeft() + 'px',
276 marginTop: -w.scrollTop() + 'px'
277 });
278 });
279 }
280 else {
281 $(this.fixed_header).find('thead').replaceWith(clone);
282 }
283
284 // avoid scrolling header links being focused
285 $(this.list.tHead).find('a.sortcol').attr('tabindex', '-1');
286
287 // set tabindex to fixed header sort links
288 clone.find('a.sortcol').attr('tabindex', '0');
289
290 this.thead = clone.get(0);
291 this.resize();
292 },
293
294 resize: function()
295 {
296 if (!this.fixed_header)
297 return;
298
299 var column_widths = [];
300
301 // get column widths from original thead
302 $(this.tbody).parent().find('thead th,thead td').each(function(index) {
303 column_widths[index] = $(this).width();
304 });
305
306 // apply fixed widths to fixed table header
307 $(this.thead).parent().width($(this.tbody).parent().width());
308 $(this.thead).find('th,td').each(function(index) {
309 $(this).width(column_widths[index]);
310 });
311
312 $(window).scroll();
313 },
314
315 /**
316 * Remove all list rows
317 */
318 clear: function(sel)
319 {
320 if (this.tagname == 'table') {
321 var tbody = document.createElement('tbody');
322 this.list.insertBefore(tbody, this.tbody);
323 this.list.removeChild(this.list.tBodies[1]);
324 this.tbody = tbody;
325 }
326 else {
327 $(this.row_tagname() + ':not(.thead)', this.tbody).remove();
328 }
329
330 this.rows = {};
331 this.rowcount = 0;
332 this.last_selected = null;
333
334 if (sel)
335 this.clear_selection();
336
337 // reset scroll position (in Opera)
338 if (this.frame)
339 this.frame.scrollTop = 0;
340
341 // fix list header after removing any rows
342 this.resize();
343 },
344
345
346 /**
347 * 'remove' message row from list (just hide it)
348 */
349 remove_row: function(uid, sel_next)
350 {
351 var self = this, node = this.rows[uid] ? this.rows[uid].obj : null;
352
353 if (!node)
354 return;
355
356 node.style.display = 'none';
357
358 if (sel_next)
359 this.select_next();
360
361 delete this.rows[uid];
362 this.rowcount--;
363
364 // fix list header after removing any rows
365 clearTimeout(this.resize_timeout)
366 this.resize_timeout = setTimeout(function() { self.resize(); }, 50);
367 },
368
369
370 /**
371 * Add row to the list and initialize it
372 */
373 insert_row: function(row, before)
374 {
375 var self = this, tbody = this.tbody;
376
377 // create a real dom node first
378 if (row.nodeName === undefined) {
379 // for performance reasons use DOM instead of jQuery here
380 var i, e, domcell, col,
381 domrow = document.createElement(this.row_tagname());
382
383 if (row.id) domrow.id = row.id;
384 if (row.uid) domrow.uid = row.uid;
385 if (row.className) domrow.className = row.className;
386 if (row.style) $.extend(domrow.style, row.style);
387
388 for (i=0; row.cols && i < row.cols.length; i++) {
389 col = row.cols[i];
390 domcell = col.dom;
391 if (!domcell) {
392 domcell = document.createElement(this.col_tagname());
393 if (col.className) domcell.className = col.className;
394 if (col.innerHTML) domcell.innerHTML = col.innerHTML;
395 for (e in col.events)
396 domcell['on' + e] = col.events[e];
397 }
398 domrow.appendChild(domcell);
399 }
400
401 row = domrow;
402 }
403
404 if (before && tbody.childNodes.length)
405 tbody.insertBefore(row, (typeof before == 'object' && before.parentNode == tbody) ? before : tbody.firstChild);
406 else
407 tbody.appendChild(row);
408
409 this.init_row(row);
410 this.rowcount++;
411
412 // fix list header after adding any rows
413 clearTimeout(this.resize_timeout)
414 this.resize_timeout = setTimeout(function() { self.resize(); }, 50);
415 },
416
417 /**
418 *
419 */
420 update_row: function(id, cols, newid, select)
421 {
422 var row = this.rows[id];
423 if (!row) return false;
424
425 var i, domrow = row.obj;
426 for (i = 0; cols && i < cols.length; i++) {
427 this.get_cell(domrow, i).html(cols[i]);
428 }
429
430 if (newid) {
431 delete this.rows[id];
432 domrow.uid = newid;
433 domrow.id = 'rcmrow' + newid;
434 this.init_row(domrow);
435
436 if (select)
437 this.selection[0] = newid;
438
439 if (this.last_selected == id)
440 this.last_selected = newid;
441 }
442 },
443
444
445 /**
446 * Set focus to the list
447 */
448 focus: function(e)
449 {
450 if (this.focused)
451 return;
452
453 this.focused = true;
454
455 if (e)
456 rcube_event.cancel(e);
457
458 var focus_elem = null;
459
460 if (this.last_selected && this.rows[this.last_selected]) {
461 focus_elem = $(this.rows[this.last_selected].obj).find(this.col_tagname()).eq(this.subject_col).attr('tabindex', '0');
462 }
463
464 // Un-focus already focused elements (#1487123, #1487316, #1488600, #1488620)
465 if (focus_elem && focus_elem.length) {
466 // We now fix this by explicitly assigning focus to a dedicated link element
467 this.focus_noscroll(focus_elem);
468 }
469 else {
470 // It looks that window.focus() does the job for all browsers, but not Firefox (#1489058)
471 $('iframe,:focus:not(body)').blur();
472 window.focus();
473 }
474
475 $(this.list).addClass('focus').removeAttr('tabindex');
476
477 // set internal focus pointer to first row
478 if (!this.last_selected)
479 this.select_first(CONTROL_KEY);
480 },
481
482
483 /**
484 * remove focus from the list
485 */
486 blur: function(e)
487 {
488 this.focused = false;
489
490 // avoid the table getting focus right again (on Shift+Tab)
491 var me = this;
492 setTimeout(function() { $(me.list).attr('tabindex', '0'); }, 20);
493
494 if (this.last_selected && this.rows[this.last_selected]) {
495 $(this.rows[this.last_selected].obj)
496 .find(this.col_tagname()).eq(this.subject_col).removeAttr('tabindex');
497 }
498
499 $(this.list).removeClass('focus');
500 },
501
502 /**
503 * Focus the given element without scrolling the list container
504 */
505 focus_noscroll: function(elem)
506 {
507 var y = this.frame.scrollTop || this.frame.scrollY;
508 elem.focus();
509 this.frame.scrollTop = y;
510 },
511
512
513 /**
514 * Set/unset the given column as hidden
515 */
516 hide_column: function(col, hide)
517 {
518 var method = hide ? 'addClass' : 'removeClass';
519
520 if (this.fixed_header)
521 $(this.row_tagname()+' '+this.col_tagname()+'.'+col, this.fixed_header)[method]('hidden');
522
523 $(this.row_tagname()+' '+this.col_tagname()+'.'+col, this.list)[method]('hidden');
524 },
525
526
527 /**
528 * onmousedown-handler of message list column
529 */
530 drag_column: function(e, col)
531 {
532 if (this.colcount > 1) {
533 this.drag_start = true;
534 this.drag_mouse_start = rcube_event.get_mouse_pos(e);
535
536 rcube_event.add_listener({event:'mousemove', object:this, method:'column_drag_mouse_move'});
537 rcube_event.add_listener({event:'mouseup', object:this, method:'column_drag_mouse_up'});
538
539 // enable dragging over iframes
540 this.add_dragfix();
541
542 // find selected column number
543 for (var i=0; i<this.thead.rows[0].cells.length; i++) {
544 if (col == this.thead.rows[0].cells[i]) {
545 this.selected_column = i;
546 break;
547 }
548 }
549 }
550
551 return false;
552 },
553
554
555 /**
556 * onmousedown-handler of message list row
557 */
558 drag_row: function(e, id)
559 {
560 // don't do anything (another action processed before)
561 if (!this.is_event_target(e))
562 return true;
563
564 // accept right-clicks
565 if (rcube_event.get_button(e) == 2)
566 return true;
567
568 this.in_selection_before = e && e.istouch || this.in_selection(id) ? id : false;
569
570 // selects currently unselected row
571 if (!this.in_selection_before) {
572 var mod_key = rcube_event.get_modifier(e);
573 this.select_row(id, mod_key, true);
574 }
575
576 if (this.draggable && this.selection.length && this.in_selection(id)) {
577 this.drag_start = true;
578 this.drag_mouse_start = rcube_event.get_mouse_pos(e);
579
580 rcube_event.add_listener({event:'mousemove', object:this, method:'drag_mouse_move'});
581 rcube_event.add_listener({event:'mouseup', object:this, method:'drag_mouse_up'});
582 if (bw.touch) {
583 rcube_event.add_listener({event:'touchmove', object:this, method:'drag_mouse_move'});
584 rcube_event.add_listener({event:'touchend', object:this, method:'drag_mouse_up'});
585 }
586
587 // enable dragging over iframes
588 this.add_dragfix();
589 }
590
591 return false;
592 },
593
594
595 /**
596 * onmouseup-handler of message list row
597 */
598 click_row: function(e, id)
599 {
600 // sanity check
601 if (!id || !this.rows[id])
602 return false;
603
604 // don't do anything (another action processed before)
605 if (!this.is_event_target(e))
606 return true;
607
608 var now = new Date().getTime(),
609 dblclicked = now - this.rows[id].clicked < this.dblclick_time;
610
611 // unselects currently selected row
612 if (!this.drag_active && !dblclicked && this.in_selection_before == id)
613 this.select_row(id, rcube_event.get_modifier(e), true);
614
615 this.drag_start = false;
616 this.in_selection_before = false;
617
618 // row was double clicked
619 if (this.rowcount && dblclicked && this.in_selection(id)) {
620 this.triggerEvent('dblclick');
621 now = 0;
622 }
623 else
624 this.triggerEvent('click');
625
626 if (!this.drag_active) {
627 // remove temp divs
628 this.del_dragfix();
629 rcube_event.cancel(e);
630 }
631
632 this.rows[id].clicked = now;
633 this.focus();
634
635 return false;
636 },
637
638
639 /**
640 * Check target of the current event
641 */
642 is_event_target: function(e)
643 {
644 var target = rcube_event.get_target(e),
645 tagname = target.tagName.toLowerCase();
646
647 return !(target && (tagname == 'input' || tagname == 'img' || (tagname != 'a' && target.onclick)));
648 },
649
650
651 /*
652 * Returns thread root ID for specified row ID
653 */
654 find_root: function(uid)
655 {
656 var r = this.rows[uid];
657
658 if (r && r.parent_uid)
659 return this.find_root(r.parent_uid);
660 else
661 return uid;
662 },
663
664
665 expand_row: function(e, id)
666 {
667 var row = this.rows[id],
668 evtarget = rcube_event.get_target(e),
669 mod_key = rcube_event.get_modifier(e);
670
671 // Don't treat double click on the expando as double click on the message.
672 row.clicked = 0;
673
674 if (row.expanded) {
675 evtarget.className = 'collapsed';
676 if (mod_key == CONTROL_KEY || this.multiexpand)
677 this.collapse_all(row);
678 else
679 this.collapse(row);
680 }
681 else {
682 evtarget.className = 'expanded';
683 if (mod_key == CONTROL_KEY || this.multiexpand)
684 this.expand_all(row);
685 else
686 this.expand(row);
687 }
688 },
689
690 collapse: function(row)
691 {
692 var r, depth = row.depth,
693 new_row = row ? row.obj.nextSibling : null;
694
695 row.expanded = false;
696 this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj });
697
698 while (new_row) {
699 if (new_row.nodeType == 1) {
700 r = this.rows[new_row.uid];
701 if (r && r.depth <= depth)
702 break;
703
704 $(new_row).css('display', 'none');
705 if (r.expanded) {
706 r.expanded = false;
707 this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row });
708 }
709 }
710 new_row = new_row.nextSibling;
711 }
712
713 this.resize();
714 this.triggerEvent('listupdate');
715
716 return false;
717 },
718
719 expand: function(row)
720 {
721 var r, p, depth, new_row, last_expanded_parent_depth;
722
723 if (row) {
724 row.expanded = true;
725 depth = row.depth;
726 new_row = row.obj.nextSibling;
727 this.update_expando(row.id, true);
728 this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj });
729 }
730 else {
731 var tbody = this.tbody;
732 new_row = tbody.firstChild;
733 depth = 0;
734 last_expanded_parent_depth = 0;
735 }
736
737 while (new_row) {
738 if (new_row.nodeType == 1) {
739 r = this.rows[new_row.uid];
740 if (r) {
741 if (row && (!r.depth || r.depth <= depth))
742 break;
743
744 if (r.parent_uid) {
745 p = this.rows[r.parent_uid];
746 if (p && p.expanded) {
747 if ((row && p == row) || last_expanded_parent_depth >= p.depth - 1) {
748 last_expanded_parent_depth = p.depth;
749 $(new_row).css('display', '');
750 r.expanded = true;
751 this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row });
752 }
753 }
754 else
755 if (row && (! p || p.depth <= depth))
756 break;
757 }
758 }
759 }
760 new_row = new_row.nextSibling;
761 }
762
763 this.resize();
764 this.triggerEvent('listupdate');
765 return false;
766 },
767
768
769 collapse_all: function(row)
770 {
771 var depth, new_row, r;
772
773 if (row) {
774 row.expanded = false;
775 depth = row.depth;
776 new_row = row.obj.nextSibling;
777 this.update_expando(row.id);
778 this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj });
779
780 // don't collapse sub-root tree in multiexpand mode
781 if (depth && this.multiexpand)
782 return false;
783 }
784 else {
785 new_row = this.tbody.firstChild;
786 depth = 0;
787 }
788
789 while (new_row) {
790 if (new_row.nodeType == 1) {
791 if (r = this.rows[new_row.uid]) {
792 if (row && (!r.depth || r.depth <= depth))
793 break;
794
795 if (row || r.depth)
796 $(new_row).css('display', 'none');
797 if (r.has_children && r.expanded) {
798 r.expanded = false;
799 this.update_expando(r.id, false);
800 this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row });
801 }
802 }
803 }
804 new_row = new_row.nextSibling;
805 }
806
807 this.resize();
808 this.triggerEvent('listupdate');
809 return false;
810 },
811
812
813 expand_all: function(row)
814 {
815 var depth, new_row, r;
816
817 if (row) {
818 row.expanded = true;
819 depth = row.depth;
820 new_row = row.obj.nextSibling;
821 this.update_expando(row.id, true);
822 this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj });
823 }
824 else {
825 new_row = this.tbody.firstChild;
826 depth = 0;
827 }
828
829 while (new_row) {
830 if (new_row.nodeType == 1) {
831 if (r = this.rows[new_row.uid]) {
832 if (row && r.depth <= depth)
833 break;
834
835 $(new_row).css('display', '');
836 if (r.has_children && !r.expanded) {
837 r.expanded = true;
838 this.update_expando(r.id, true);
839 this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row });
840 }
841 }
842 }
843 new_row = new_row.nextSibling;
844 }
845
846 this.resize();
847 this.triggerEvent('listupdate');
848 return false;
849 },
850
851
852 update_expando: function(id, expanded)
853 {
854 var expando = document.getElementById('rcmexpando' + id);
855 if (expando)
856 expando.className = expanded ? 'expanded' : 'collapsed';
857 },
858
859 get_row_uid: function(row)
860 {
861 if (!row)
862 return;
863
864 if (!row.uid) {
865 var uid = $(row).data('uid');
866 if (uid)
867 row.uid = uid;
868 else if (String(row.id).match(this.id_regexp))
869 row.uid = RegExp.$1;
870 }
871
872 return row.uid;
873 },
874
875 /**
876 * get first/next/previous/last rows that are not hidden
877 */
878 get_next_row: function()
879 {
880 if (!this.rowcount)
881 return false;
882
883 var last_selected_row = this.rows[this.last_selected],
884 new_row = last_selected_row ? last_selected_row.obj.nextSibling : null;
885
886 while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none'))
887 new_row = new_row.nextSibling;
888
889 return new_row;
890 },
891
892 get_prev_row: function()
893 {
894 if (!this.rowcount)
895 return false;
896
897 var last_selected_row = this.rows[this.last_selected],
898 new_row = last_selected_row ? last_selected_row.obj.previousSibling : null;
899
900 while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none'))
901 new_row = new_row.previousSibling;
902
903 return new_row;
904 },
905
906 get_first_row: function()
907 {
908 if (this.rowcount) {
909 var i, uid, rows = this.tbody.childNodes;
910
911 for (i=0; i<rows.length; i++)
912 if (rows[i].id && (uid = this.get_row_uid(rows[i])))
913 return uid;
914 }
915
916 return null;
917 },
918
919 get_last_row: function()
920 {
921 if (this.rowcount) {
922 var i, uid, rows = this.tbody.childNodes;
923
924 for (i=rows.length-1; i>=0; i--)
925 if (rows[i].id && (uid = this.get_row_uid(rows[i])))
926 return uid;
927 }
928
929 return null;
930 },
931
932 row_tagname: function()
933 {
934 var row_tagnames = { table:'tr', ul:'li', '*':'div' };
935 return row_tagnames[this.tagname] || row_tagnames['*'];
936 },
937
938 col_tagname: function()
939 {
940 var col_tagnames = { table:'td', '*':'span' };
941 return col_tagnames[this.tagname] || col_tagnames['*'];
942 },
943
944 get_cell: function(row, index)
945 {
946 return $(this.col_tagname(), row).eq(index);
947 },
948
949 /**
950 * selects or unselects the proper row depending on the modifier key pressed
951 */
952 select_row: function(id, mod_key, with_mouse)
953 {
954 var select_before = this.selection.join(','),
955 in_selection_before = this.in_selection(id);
956
957 if (!this.multiselect && with_mouse)
958 mod_key = 0;
959
960 if (!this.shift_start)
961 this.shift_start = id
962
963 if (!mod_key) {
964 this.shift_start = id;
965 this.highlight_row(id, false);
966 this.multi_selecting = false;
967 }
968 else {
969 switch (mod_key) {
970 case SHIFT_KEY:
971 this.shift_select(id, false);
972 break;
973
974 case CONTROL_KEY:
975 if (with_mouse) {
976 this.shift_start = id;
977 this.highlight_row(id, true);
978 }
979 break;
980
981 case CONTROL_SHIFT_KEY:
982 this.shift_select(id, true);
983 break;
984
985 default:
986 this.highlight_row(id, false);
987 break;
988 }
989
990 this.multi_selecting = true;
991 }
992
993 if (this.last_selected && this.rows[this.last_selected]) {
994 $(this.rows[this.last_selected].obj).removeClass('focused')
995 .find(this.col_tagname()).eq(this.subject_col).removeAttr('tabindex');
996 }
997
998 // unselect if toggleselect is active and the same row was clicked again
999 if (this.toggleselect && in_selection_before && !mod_key) {
1000 this.clear_selection();
1001 }
1002 // trigger event if selection changed
1003 else if (this.selection.join(',') != select_before) {
1004 this.triggerEvent('select');
1005 }
1006
1007 if (this.rows[id]) {
1008 $(this.rows[id].obj).addClass('focused');
1009 // set cursor focus to link inside selected row
1010 if (this.focused)
1011 this.focus_noscroll($(this.rows[id].obj).find(this.col_tagname()).eq(this.subject_col).attr('tabindex', '0'));
1012 }
1013
1014 if (!this.selection.length)
1015 this.shift_start = null;
1016
1017 this.last_selected = id;
1018 },
1019
1020
1021 /**
1022 * Alias method for select_row
1023 */
1024 select: function(id)
1025 {
1026 this.select_row(id, false);
1027 this.scrollto(id);
1028 },
1029
1030
1031 /**
1032 * Select row next to the last selected one.
1033 * Either below or above.
1034 */
1035 select_next: function()
1036 {
1037 var next_row = this.get_next_row(),
1038 prev_row = this.get_prev_row(),
1039 new_row = (next_row) ? next_row : prev_row;
1040
1041 if (new_row)
1042 this.select_row(new_row.uid, false, false);
1043 },
1044
1045
1046 /**
1047 * Select first row
1048 */
1049 select_first: function(mod_key)
1050 {
1051 var row = this.get_first_row();
1052 if (row) {
1053 this.select_row(row, mod_key, false);
1054 this.scrollto(row);
1055 }
1056 },
1057
1058
1059 /**
1060 * Select last row
1061 */
1062 select_last: function(mod_key)
1063 {
1064 var row = this.get_last_row();
1065 if (row) {
1066 this.select_row(row, mod_key, false);
1067 this.scrollto(row);
1068 }
1069 },
1070
1071
1072 /**
1073 * Add all childs of the given row to selection
1074 */
1075 select_children: function(uid)
1076 {
1077 var i, children = this.row_children(uid), len = children.length;
1078
1079 for (i=0; i<len; i++)
1080 if (!this.in_selection(children[i]))
1081 this.select_row(children[i], CONTROL_KEY, true);
1082 },
1083
1084
1085 /**
1086 * Perform selection when shift key is pressed
1087 */
1088 shift_select: function(id, control)
1089 {
1090 if (!this.rows[this.shift_start] || !this.selection.length)
1091 this.shift_start = id;
1092
1093 var n, i, j, to_row = this.rows[id],
1094 from_rowIndex = this._rowIndex(this.rows[this.shift_start].obj),
1095 to_rowIndex = this._rowIndex(to_row.obj);
1096
1097 // if we're going down the list, and we hit a thread, and it's closed, select the whole thread
1098 if (from_rowIndex < to_rowIndex && !to_row.expanded && to_row.has_children)
1099 if (to_row = this.rows[(this.row_children(id)).pop()])
1100 to_rowIndex = this._rowIndex(to_row.obj);
1101
1102 i = ((from_rowIndex < to_rowIndex) ? from_rowIndex : to_rowIndex),
1103 j = ((from_rowIndex > to_rowIndex) ? from_rowIndex : to_rowIndex);
1104
1105 // iterate through the entire message list
1106 for (n in this.rows) {
1107 if (this._rowIndex(this.rows[n].obj) >= i && this._rowIndex(this.rows[n].obj) <= j) {
1108 if (!this.in_selection(n)) {
1109 this.highlight_row(n, true);
1110 }
1111 }
1112 else {
1113 if (this.in_selection(n) && !control) {
1114 this.highlight_row(n, true);
1115 }
1116 }
1117 }
1118 },
1119
1120
1121 /**
1122 * Helper method to emulate the rowIndex property of non-tr elements
1123 */
1124 _rowIndex: function(obj)
1125 {
1126 return (obj.rowIndex !== undefined) ? obj.rowIndex : $(obj).prevAll().length;
1127 },
1128
1129 /**
1130 * Check if given id is part of the current selection
1131 */
1132 in_selection: function(id, index)
1133 {
1134 for (var n in this.selection)
1135 if (this.selection[n] == id)
1136 return index ? parseInt(n) : true;
1137
1138 return false;
1139 },
1140
1141
1142 /**
1143 * Select each row in list
1144 */
1145 select_all: function(filter)
1146 {
1147 if (!this.rowcount)
1148 return false;
1149
1150 // reset but remember selection first
1151 var n, select_before = this.selection.join(',');
1152 this.selection = [];
1153
1154 for (n in this.rows) {
1155 if (!filter || this.rows[n][filter] == true) {
1156 this.last_selected = n;
1157 this.highlight_row(n, true, true);
1158 }
1159 else {
1160 $(this.rows[n].obj).removeClass('selected').removeAttr('aria-selected');
1161 }
1162 }
1163
1164 // trigger event if selection changed
1165 if (this.selection.join(',') != select_before)
1166 this.triggerEvent('select');
1167
1168 this.focus();
1169
1170 return true;
1171 },
1172
1173
1174 /**
1175 * Invert selection
1176 */
1177 invert_selection: function()
1178 {
1179 if (!this.rowcount)
1180 return false;
1181
1182 // remember old selection
1183 var n, select_before = this.selection.join(',');
1184
1185 for (n in this.rows)
1186 this.highlight_row(n, true);
1187
1188 // trigger event if selection changed
1189 if (this.selection.join(',') != select_before)
1190 this.triggerEvent('select');
1191
1192 this.focus();
1193
1194 return true;
1195 },
1196
1197
1198 /**
1199 * Unselect selected row(s)
1200 */
1201 clear_selection: function(id, no_event)
1202 {
1203 var n, num_select = this.selection.length;
1204
1205 // one row
1206 if (id) {
1207 for (n in this.selection)
1208 if (this.selection[n] == id) {
1209 this.selection.splice(n,1);
1210 break;
1211 }
1212 }
1213 // all rows
1214 else {
1215 for (n in this.selection)
1216 if (this.rows[this.selection[n]]) {
1217 $(this.rows[this.selection[n]].obj).removeClass('selected').removeAttr('aria-selected');
1218 }
1219
1220 this.selection = [];
1221 }
1222
1223 if (num_select && !this.selection.length && !no_event) {
1224 this.triggerEvent('select');
1225 this.last_selected = null;
1226 }
1227 },
1228
1229
1230 /**
1231 * Getter for the selection array
1232 */
1233 get_selection: function(deep)
1234 {
1235 var res = $.merge([], this.selection);
1236
1237 // return children of selected threads even if only root is selected
1238 if (deep !== false && res.length) {
1239 for (var uid, uids, i=0, len=res.length; i<len; i++) {
1240 uid = res[i];
1241 if (this.rows[uid] && this.rows[uid].has_children && !this.rows[uid].expanded) {
1242 uids = this.row_children(uid);
1243 for (var j=0, uids_len=uids.length; j<uids_len; j++) {
1244 uid = uids[j];
1245 if (!this.in_selection(uid))
1246 res.push(uid);
1247 }
1248 }
1249 }
1250 }
1251
1252 return res;
1253 },
1254
1255
1256 /**
1257 * Return the ID if only one row is selected
1258 */
1259 get_single_selection: function()
1260 {
1261 if (this.selection.length == 1)
1262 return this.selection[0];
1263 else
1264 return null;
1265 },
1266
1267
1268 /**
1269 * Highlight/unhighlight a row
1270 */
1271 highlight_row: function(id, multiple, norecur)
1272 {
1273 if (!this.rows[id])
1274 return;
1275
1276 if (!multiple) {
1277 if (this.selection.length > 1 || !this.in_selection(id)) {
1278 this.clear_selection(null, true);
1279 this.selection[0] = id;
1280 $(this.rows[id].obj).addClass('selected').attr('aria-selected', 'true');
1281 }
1282 }
1283 else {
1284 var pre, post, p = this.in_selection(id, true);
1285
1286 if (p === false) { // select row
1287 this.selection.push(id);
1288 $(this.rows[id].obj).addClass('selected').attr('aria-selected', 'true');
1289 if (!norecur && !this.rows[id].expanded)
1290 this.highlight_children(id, true);
1291 }
1292 else { // unselect row
1293 pre = this.selection.slice(0, p);
1294 post = this.selection.slice(p+1, this.selection.length);
1295
1296 this.selection = pre.concat(post);
1297 $(this.rows[id].obj).removeClass('selected').removeAttr('aria-selected');
1298 if (!norecur && !this.rows[id].expanded)
1299 this.highlight_children(id, false);
1300 }
1301 }
1302 },
1303
1304
1305 /**
1306 * Highlight/unhighlight all childs of the given row
1307 */
1308 highlight_children: function(id, status)
1309 {
1310 var i, selected,
1311 children = this.row_children(id), len = children.length;
1312
1313 for (i=0; i<len; i++) {
1314 selected = this.in_selection(children[i]);
1315 if ((status && !selected) || (!status && selected))
1316 this.highlight_row(children[i], true, true);
1317 }
1318 },
1319
1320
1321 /**
1322 * Handler for keyboard events
1323 */
1324 key_press: function(e)
1325 {
1326 var target = e.target || {};
1327
1328 if (!this.focused || target.nodeName == 'INPUT' || target.nodeName == 'TEXTAREA' || target.nodeName == 'SELECT')
1329 return true;
1330
1331 var keyCode = rcube_event.get_keycode(e),
1332 mod_key = rcube_event.get_modifier(e);
1333
1334 switch (keyCode) {
1335 case 40:
1336 case 38:
1337 case 63233: // "down", in safari keypress
1338 case 63232: // "up", in safari keypress
1339 // Stop propagation so that the browser doesn't scroll
1340 rcube_event.cancel(e);
1341 return this.use_arrow_key(keyCode, mod_key);
1342
1343 case 32:
1344 rcube_event.cancel(e);
1345 return this.select_row(this.last_selected, mod_key, true);
1346
1347 case 37: // Left arrow key
1348 case 39: // Right arrow key
1349 // Stop propagation
1350 rcube_event.cancel(e);
1351 var ret = this.use_arrow_key(keyCode, mod_key);
1352 this.key_pressed = keyCode;
1353 this.modkey = mod_key;
1354 this.triggerEvent('keypress');
1355 this.modkey = 0;
1356 return ret;
1357
1358 case 36: // Home
1359 this.select_first(mod_key);
1360 return rcube_event.cancel(e);
1361
1362 case 35: // End
1363 this.select_last(mod_key);
1364 return rcube_event.cancel(e);
1365
1366 case 27:
1367 if (this.drag_active)
1368 return this.drag_mouse_up(e);
1369
1370 if (this.col_drag_active) {
1371 this.selected_column = null;
1372 return this.column_drag_mouse_up(e);
1373 }
1374
1375 return rcube_event.cancel(e);
1376
1377 case 9: // Tab
1378 this.blur();
1379 break;
1380
1381 case 13: // Enter
1382 if (!this.selection.length)
1383 this.select_row(this.last_selected, mod_key, false);
1384
1385 default:
1386 this.key_pressed = keyCode;
1387 this.modkey = mod_key;
1388 this.triggerEvent('keypress');
1389 this.modkey = 0;
1390
1391 if (this.key_pressed == this.BACKSPACE_KEY)
1392 return rcube_event.cancel(e);
1393 }
1394
1395 return true;
1396 },
1397
1398
1399 /**
1400 * Special handling method for arrow keys
1401 */
1402 use_arrow_key: function(keyCode, mod_key)
1403 {
1404 var new_row,
1405 selected_row = this.rows[this.last_selected];
1406
1407 // Safari uses the nonstandard keycodes 63232/63233 for up/down, if we're
1408 // using the keypress event (but not the keydown or keyup event).
1409 if (keyCode == 40 || keyCode == 63233) // down arrow key pressed
1410 new_row = this.get_next_row();
1411 else if (keyCode == 38 || keyCode == 63232) // up arrow key pressed
1412 new_row = this.get_prev_row();
1413 else {
1414 if (!selected_row || !selected_row.has_children)
1415 return;
1416
1417 // expand
1418 if (keyCode == 39) {
1419 if (selected_row.expanded)
1420 return;
1421
1422 if (mod_key == CONTROL_KEY || this.multiexpand)
1423 this.expand_all(selected_row);
1424 else
1425 this.expand(selected_row);
1426 }
1427 // collapse
1428 else {
1429 if (!selected_row.expanded)
1430 return;
1431
1432 if (mod_key == CONTROL_KEY || this.multiexpand)
1433 this.collapse_all(selected_row);
1434 else
1435 this.collapse(selected_row);
1436 }
1437
1438 this.update_expando(selected_row.id, selected_row.expanded);
1439
1440 return false;
1441 }
1442
1443 if (new_row) {
1444 // simulate ctr-key if no rows are selected
1445 if (!mod_key && !this.selection.length)
1446 mod_key = CONTROL_KEY;
1447
1448 this.select_row(new_row.uid, mod_key, false);
1449 this.scrollto(new_row.uid);
1450 }
1451 else if (!new_row && !selected_row) {
1452 // select the first row if none selected yet
1453 this.select_first(CONTROL_KEY);
1454 }
1455
1456 return false;
1457 },
1458
1459
1460 /**
1461 * Try to scroll the list to make the specified row visible
1462 */
1463 scrollto: function(id)
1464 {
1465 var row = this.rows[id] ? this.rows[id].obj : null;
1466
1467 if (row && this.frame) {
1468 var scroll_to = Number(row.offsetTop),
1469 head_offset = 0;
1470
1471 // expand thread if target row is hidden (collapsed)
1472 if (!scroll_to && this.rows[id].parent_uid) {
1473 var parent = this.find_root(this.rows[id].uid);
1474 this.expand_all(this.rows[parent]);
1475 scroll_to = Number(row.offsetTop);
1476 }
1477
1478 if (this.fixed_header)
1479 head_offset = Number(this.thead.offsetHeight);
1480
1481 // if row is above the frame (or behind header)
1482 if (scroll_to < Number(this.frame.scrollTop) + head_offset) {
1483 // scroll window so that row isn't behind header
1484 this.frame.scrollTop = scroll_to - head_offset;
1485 }
1486 else if (scroll_to + Number(row.offsetHeight) > Number(this.frame.scrollTop) + Number(this.frame.offsetHeight))
1487 this.frame.scrollTop = (scroll_to + Number(row.offsetHeight)) - Number(this.frame.offsetHeight);
1488 }
1489 },
1490
1491
1492 /**
1493 * Handler for mouse move events
1494 */
1495 drag_mouse_move: function(e)
1496 {
1497 // convert touch event
1498 if (e.type == 'touchmove') {
1499 if (e.touches.length == 1 && e.changedTouches.length == 1)
1500 e = rcube_event.touchevent(e.changedTouches[0]);
1501 else
1502 return rcube_event.cancel(e);
1503 }
1504
1505 if (this.drag_start) {
1506 // check mouse movement, of less than 3 pixels, don't start dragging
1507 var m = rcube_event.get_mouse_pos(e),
1508 limit = 10, selection = [], self = this;
1509
1510 if (!this.drag_mouse_start || (Math.abs(m.x - this.drag_mouse_start.x) < 3 && Math.abs(m.y - this.drag_mouse_start.y) < 3))
1511 return false;
1512
1513 // remember dragging start position
1514 this.drag_start_pos = {left: m.x, top: m.y};
1515
1516 // initialize drag layer
1517 if (!this.draglayer)
1518 this.draglayer = $('<div>').attr('id', 'rcmdraglayer')
1519 .css({position: 'absolute', display: 'none', 'z-index': 2000})
1520 .appendTo(document.body);
1521 else
1522 this.draglayer.html('');
1523
1524 // get selected rows (in display order), don't use this.selection here
1525 $(this.row_tagname() + '.selected', this.tbody).each(function() {
1526 var uid = self.get_row_uid(this), row = self.rows[uid];
1527
1528 if (!row || $.inArray(uid, selection) > -1)
1529 return;
1530
1531 selection.push(uid);
1532
1533 // also handle children of (collapsed) trees for dragging (they might be not selected)
1534 if (row.has_children && !row.expanded)
1535 $.each(self.row_children(uid), function() {
1536 if ($.inArray(this, selection) > -1)
1537 return;
1538 selection.push(this);
1539 });
1540
1541 // break the loop asap
1542 if (selection.length > limit + 1)
1543 return false;
1544 });
1545
1546 // append subject (of every row up to the limit) to the drag layer
1547 $.each(selection, function(i, uid) {
1548 if (i > limit) {
1549 self.draglayer.append('...');
1550 return false;
1551 }
1552
1553 $('> ' + self.col_tagname(), self.rows[uid].obj).each(function(n, cell) {
1554 if (self.subject_col < 0 || (self.subject_col >= 0 && self.subject_col == n)) {
1555 // remove elements marked with "skip-on-drag" class
1556 cell = $(cell).clone();
1557 $(cell).find('.skip-on-drag').remove();
1558
1559 var subject = cell.text();
1560
1561 if (subject) {
1562 // remove leading spaces
1563 subject = $.trim(subject);
1564 // truncate line to 50 characters
1565 subject = (subject.length > 50 ? subject.substring(0, 50) + '...' : subject);
1566
1567 self.draglayer.append($('<div>').text(subject));
1568 return false;
1569 }
1570 }
1571 });
1572 });
1573
1574 this.draglayer.show();
1575 this.drag_active = true;
1576 this.triggerEvent('dragstart');
1577 }
1578
1579 if (this.drag_active && this.draglayer) {
1580 var pos = rcube_event.get_mouse_pos(e);
1581 this.draglayer.css({ left:(pos.x+20)+'px', top:(pos.y-5 + (bw.ie ? document.documentElement.scrollTop : 0))+'px' });
1582 this.triggerEvent('dragmove', e?e:window.event);
1583 }
1584
1585 this.drag_start = false;
1586
1587 return false;
1588 },
1589
1590
1591 /**
1592 * Handler for mouse up events
1593 */
1594 drag_mouse_up: function(e)
1595 {
1596 document.onmousemove = null;
1597
1598 if (e.type == 'touchend') {
1599 if (e.changedTouches.length != 1)
1600 return rcube_event.cancel(e);
1601 }
1602
1603 if (this.draglayer && this.draglayer.is(':visible')) {
1604 if (this.drag_start_pos)
1605 this.draglayer.animate(this.drag_start_pos, 300, 'swing').hide(20);
1606 else
1607 this.draglayer.hide();
1608 }
1609
1610 if (this.drag_active)
1611 this.focus();
1612 this.drag_active = false;
1613
1614 rcube_event.remove_listener({event:'mousemove', object:this, method:'drag_mouse_move'});
1615 rcube_event.remove_listener({event:'mouseup', object:this, method:'drag_mouse_up'});
1616
1617 if (bw.touch) {
1618 rcube_event.remove_listener({event:'touchmove', object:this, method:'drag_mouse_move'});
1619 rcube_event.remove_listener({event:'touchend', object:this, method:'drag_mouse_up'});
1620 }
1621
1622 // remove temp divs
1623 this.del_dragfix();
1624
1625 this.triggerEvent('dragend', e);
1626
1627 return rcube_event.cancel(e);
1628 },
1629
1630
1631 /**
1632 * Handler for mouse move events for dragging list column
1633 */
1634 column_drag_mouse_move: function(e)
1635 {
1636 if (this.drag_start) {
1637 // check mouse movement, of less than 3 pixels, don't start dragging
1638 var i, m = rcube_event.get_mouse_pos(e);
1639
1640 if (!this.drag_mouse_start || (Math.abs(m.x - this.drag_mouse_start.x) < 3 && Math.abs(m.y - this.drag_mouse_start.y) < 3))
1641 return false;
1642
1643 if (!this.col_draglayer) {
1644 var lpos = $(this.list).offset(),
1645 cells = this.thead.rows[0].cells;
1646
1647 // fix layer position when list is scrolled
1648 lpos.top += this.list.scrollTop + this.list.parentNode.scrollTop;
1649
1650 // create dragging layer
1651 this.col_draglayer = $('<div>').attr('id', 'rcmcoldraglayer')
1652 .css(lpos).css({ position:'absolute', 'z-index':2001,
1653 'background-color':'white', opacity:0.75,
1654 height: (this.frame.offsetHeight-2)+'px', width: (this.frame.offsetWidth-2)+'px' })
1655 .appendTo(document.body)
1656 // ... and column position indicator
1657 .append($('<div>').attr('id', 'rcmcolumnindicator')
1658 .css({ position:'absolute', 'border-right':'2px dotted #555',
1659 'z-index':2002, height: (this.frame.offsetHeight-2)+'px' }));
1660
1661 this.cols = [];
1662 this.list_pos = this.list_min_pos = lpos.left;
1663 // save columns positions
1664 for (i=0; i<cells.length; i++) {
1665 this.cols[i] = cells[i].offsetWidth;
1666 if (this.column_fixed !== null && i <= this.column_fixed) {
1667 this.list_min_pos += this.cols[i];
1668 }
1669 }
1670 }
1671
1672 this.col_draglayer.show();
1673 this.col_drag_active = true;
1674 this.triggerEvent('column_dragstart');
1675 }
1676
1677 // set column indicator position
1678 if (this.col_drag_active && this.col_draglayer) {
1679 var i, cpos = 0, pos = rcube_event.get_mouse_pos(e);
1680
1681 for (i=0; i<this.cols.length; i++) {
1682 if (pos.x >= this.cols[i]/2 + this.list_pos + cpos)
1683 cpos += this.cols[i];
1684 else
1685 break;
1686 }
1687
1688 // handle fixed columns on left
1689 if (i == 0 && this.list_min_pos > pos.x)
1690 cpos = this.list_min_pos - this.list_pos;
1691 // empty list needs some assignment
1692 else if (!this.list.rowcount && i == this.cols.length)
1693 cpos -= 2;
1694 $('#rcmcolumnindicator').css({ width: cpos+'px'});
1695 this.triggerEvent('column_dragmove', e?e:window.event);
1696 }
1697
1698 this.drag_start = false;
1699
1700 return false;
1701 },
1702
1703
1704 /**
1705 * Handler for mouse up events for dragging list columns
1706 */
1707 column_drag_mouse_up: function(e)
1708 {
1709 document.onmousemove = null;
1710
1711 if (this.col_draglayer) {
1712 (this.col_draglayer).remove();
1713 this.col_draglayer = null;
1714 }
1715
1716 rcube_event.remove_listener({event:'mousemove', object:this, method:'column_drag_mouse_move'});
1717 rcube_event.remove_listener({event:'mouseup', object:this, method:'column_drag_mouse_up'});
1718
1719 // remove temp divs
1720 this.del_dragfix();
1721
1722 if (this.col_drag_active) {
1723 this.col_drag_active = false;
1724 this.focus();
1725 this.triggerEvent('column_dragend', e);
1726
1727 if (this.selected_column !== null && this.cols && this.cols.length) {
1728 var i, cpos = 0, pos = rcube_event.get_mouse_pos(e);
1729
1730 // find destination position
1731 for (i=0; i<this.cols.length; i++) {
1732 if (pos.x >= this.cols[i]/2 + this.list_pos + cpos)
1733 cpos += this.cols[i];
1734 else
1735 break;
1736 }
1737
1738 if (i != this.selected_column && i != this.selected_column+1) {
1739 this.column_replace(this.selected_column, i);
1740 }
1741 }
1742 }
1743
1744 return rcube_event.cancel(e);
1745 },
1746
1747
1748 /**
1749 * Returns IDs of all rows in a thread (except root) for specified root
1750 */
1751 row_children: function(uid)
1752 {
1753 if (!this.rows[uid] || !this.rows[uid].has_children)
1754 return [];
1755
1756 var res = [], depth = this.rows[uid].depth,
1757 row = this.rows[uid].obj.nextSibling;
1758
1759 while (row) {
1760 if (row.nodeType == 1) {
1761 if (r = this.rows[row.uid]) {
1762 if (!r.depth || r.depth <= depth)
1763 break;
1764 res.push(r.uid);
1765 }
1766 }
1767 row = row.nextSibling;
1768 }
1769
1770 return res;
1771 },
1772
1773
1774 /**
1775 * Creates a layer for drag&drop over iframes
1776 */
1777 add_dragfix: function()
1778 {
1779 $('iframe').each(function() {
1780 $('<div class="iframe-dragdrop-fix"></div>')
1781 .css({background: '#fff',
1782 width: this.offsetWidth+'px', height: this.offsetHeight+'px',
1783 position: 'absolute', opacity: '0.001', zIndex: 1000
1784 })
1785 .css($(this).offset())
1786 .appendTo(document.body);
1787 });
1788 },
1789
1790
1791 /**
1792 * Removes the layer for drag&drop over iframes
1793 */
1794 del_dragfix: function()
1795 {
1796 $('div.iframe-dragdrop-fix').remove();
1797 },
1798
1799
1800 /**
1801 * Replaces two columns
1802 */
1803 column_replace: function(from, to)
1804 {
1805 // only supported for <table> lists
1806 if (!this.thead || !this.thead.rows)
1807 return;
1808
1809 var len, cells = this.thead.rows[0].cells,
1810 elem = cells[from],
1811 before = cells[to],
1812 td = document.createElement('td');
1813
1814 // replace header cells
1815 if (before)
1816 cells[0].parentNode.insertBefore(td, before);
1817 else
1818 cells[0].parentNode.appendChild(td);
1819 cells[0].parentNode.replaceChild(elem, td);
1820
1821 // replace list cells
1822 for (r=0, len=this.tbody.rows.length; r<len; r++) {
1823 row = this.tbody.rows[r];
1824
1825 elem = row.cells[from];
1826 before = row.cells[to];
1827 td = document.createElement('td');
1828
1829 if (before)
1830 row.insertBefore(td, before);
1831 else
1832 row.appendChild(td);
1833 row.replaceChild(elem, td);
1834 }
1835
1836 // update subject column position
1837 if (this.subject_col == from)
1838 this.subject_col = to > from ? to - 1 : to;
1839 else if (this.subject_col < from && to <= this.subject_col)
1840 this.subject_col++;
1841 else if (this.subject_col > from && to >= this.subject_col)
1842 this.subject_col--;
1843
1844 if (this.fixed_header)
1845 this.init_header();
1846
1847 this.triggerEvent('column_replace');
1848 }
1849
1850 };
1851
1852 rcube_list_widget.prototype.addEventListener = rcube_event_engine.prototype.addEventListener;
1853 rcube_list_widget.prototype.removeEventListener = rcube_event_engine.prototype.removeEventListener;
1854 rcube_list_widget.prototype.triggerEvent = rcube_event_engine.prototype.triggerEvent;
1855
1856 // static
1857 rcube_list_widget._instances = [];