/** * Roundcube List Widget * * This file is part of the Roundcube Webmail client * * @licstart The following is the entire license notice for the * JavaScript code in this file. * * Copyright (c) 2005-2014, The Roundcube Dev Team * * The JavaScript code in this page is free software: you can * redistribute it and/or modify it under the terms of the GNU * General Public License (GNU GPL) as published by the Free Software * Foundation, either version 3 of the License, or (at your option) * any later version. The code is distributed WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU GPL for more details. * * As additional permission under GNU GPL version 3 section 7, you * may distribute non-source (e.g., minimized or compacted) forms of * that code without the copy of the GNU GPL normally required by * section 4, provided you include this license notice and a URL * through which recipients can access the Corresponding Source. * * @licend The above is the entire license notice * for the JavaScript code in this file. * * @author Thomas Bruederli <roundcube@gmail.com> * @author Charles McNulty <charles@charlesmcnulty.com> * * @requires jquery.js, common.js */ /** * Roundcube List Widget class * @constructor */ function rcube_list_widget(list, p) { // static contants this.ENTER_KEY = 13; this.DELETE_KEY = 46; this.BACKSPACE_KEY = 8; this.list = list ? list : null; this.tagname = this.list ? this.list.nodeName.toLowerCase() : 'table'; this.id_regexp = /^rcmrow([a-z0-9\-_=\+\/]+)/i; this.rows = {}; this.selection = []; this.rowcount = 0; this.colcount = 0; this.subject_col = 0; this.modkey = 0; this.multiselect = false; this.multiexpand = false; this.multi_selecting = false; this.draggable = false; this.column_movable = false; this.keyboard = false; this.toggleselect = false; this.aria_listbox = false; this.drag_active = false; this.col_drag_active = false; this.column_fixed = null; this.last_selected = null; this.shift_start = null; this.focused = false; this.drag_mouse_start = null; this.dblclick_time = 500; // default value on MS Windows is 500 this.row_init = function(){}; // @deprecated; use list.addEventListener('initrow') instead // overwrite default paramaters if (p && typeof p === 'object') for (var n in p) this[n] = p[n]; // register this instance rcube_list_widget._instances.push(this); }; rcube_list_widget.prototype = { /** * get all message rows from HTML table and init each row */ init: function() { if (this.tagname == 'table' && this.list && this.list.tBodies[0]) { this.thead = this.list.tHead; this.tbody = this.list.tBodies[0]; } else if (this.tagname != 'table' && this.list) { this.tbody = this.list; } if ($(this.list).attr('role') == 'listbox') { this.aria_listbox = true; if (this.multiselect) $(this.list).attr('aria-multiselectable', 'true'); } if (this.tbody) { this.rows = {}; this.rowcount = 0; var r, len, rows = this.tbody.childNodes, me = this; for (r=0, len=rows.length; r<len; r++) { this.rowcount += this.init_row(rows[r]) ? 1 : 0; } this.init_header(); this.frame = this.list.parentNode; // set body events if (this.keyboard) { rcube_event.add_listener({event:'keydown', object:this, method:'key_press'}); // allow the table element to receive focus. $(this.list).attr('tabindex', '0') .on('focus', function(e){ me.focus(e); }); } } return this; }, /** * Init list row and set mouse events on it */ init_row: function(row) { row.uid = this.get_row_uid(row); // make references in internal array and set event handlers if (row && row.uid) { var self = this, uid = row.uid; this.rows[uid] = {uid:uid, id:row.id, obj:row}; // set eventhandlers to table row row.onmousedown = function(e){ return self.drag_row(e, this.uid); }; row.onmouseup = function(e){ return self.click_row(e, this.uid); }; if (bw.touch) { row.addEventListener('touchstart', function(e) { if (e.touches.length == 1) { self.touchmoved = false; self.drag_row(rcube_event.touchevent(e.touches[0]), this.uid) } }, false); row.addEventListener('touchend', function(e) { if (e.changedTouches.length == 1) { if (!self.touchmoved && !self.click_row(rcube_event.touchevent(e.changedTouches[0]), this.uid)) e.preventDefault(); } }, false); row.addEventListener('touchmove', function(e) { if (e.changedTouches.length == 1) { self.touchmoved = true; if (self.drag_active) e.preventDefault(); } }, false); } // label the list row with the subject col as descriptive label if (this.aria_listbox) { var lbl_id = 'l:' + row.id; $(row) .attr('role', 'option') .attr('aria-labelledby', lbl_id) .find(this.col_tagname()).eq(this.subject_col).attr('id', lbl_id); } if (document.all) row.onselectstart = function() { return false; }; this.row_init(this.rows[uid]); // legacy support this.triggerEvent('initrow', this.rows[uid]); return true; } }, /** * Init list column headers and set mouse events on them */ init_header: function() { if (this.thead) { this.colcount = 0; if (this.fixed_header) { // copy (modified) fixed header back to the actual table $(this.list.tHead).replaceWith($(this.fixed_header).find('thead').clone()); $(this.list.tHead).find('th,td').attr('style', '').find('a').attr('tabindex', '-1'); // remove fixed widths } else if (!bw.touch && this.list.className.indexOf('fixedheader') >= 0) { this.init_fixed_header(); } var col, r, p = this; // add events for list columns moving if (this.column_movable && this.thead && this.thead.rows) { for (r=0; r<this.thead.rows[0].cells.length; r++) { if (this.column_fixed == r) continue; col = this.thead.rows[0].cells[r]; col.onmousedown = function(e){ return p.drag_column(e, this); }; this.colcount++; } } } }, init_fixed_header: function() { var clone = $(this.list.tHead).clone(); if (!this.fixed_header) { this.fixed_header = $('<table>') .attr('class', this.list.className + ' fixedcopy') .attr('role', 'presentation') .css({ position:'fixed' }) .append(clone) .append('<tbody></tbody>'); $(this.list).before(this.fixed_header); var me = this; $(window).resize(function(){ me.resize() }); $(window).scroll(function(){ var w = $(window); me.fixed_header.css('marginLeft', (-w.scrollLeft()) + 'px'); if (!bw.webkit) me.fixed_header.css('marginTop', (-w.scrollTop()) + 'px'); }); } else { $(this.fixed_header).find('thead').replaceWith(clone); } // avoid scrolling header links being focused $(this.list.tHead).find('a.sortcol').attr('tabindex', '-1'); // set tabindex to fixed header sort links clone.find('a.sortcol').attr('tabindex', '0'); this.thead = clone.get(0); this.resize(); }, resize: function() { if (!this.fixed_header) return; var column_widths = []; // get column widths from original thead $(this.tbody).parent().find('thead tr td').each(function(index) { column_widths[index] = $(this).width(); }); // apply fixed widths to fixed table header $(this.thead).parent().width($(this.tbody).parent().width()); $(this.thead).find('tr td').each(function(index) { $(this).css('width', column_widths[index]); }); $(window).scroll(); }, /** * Remove all list rows */ clear: function(sel) { if (this.tagname == 'table') { var tbody = document.createElement('tbody'); this.list.insertBefore(tbody, this.tbody); this.list.removeChild(this.list.tBodies[1]); this.tbody = tbody; } else { $(this.row_tagname() + ':not(.thead)', this.tbody).remove(); } this.rows = {}; this.rowcount = 0; this.last_selected = null; if (sel) this.clear_selection(); // reset scroll position (in Opera) if (this.frame) this.frame.scrollTop = 0; // fix list header after removing any rows this.resize(); }, /** * 'remove' message row from list (just hide it) */ remove_row: function(uid, sel_next) { var self = this, node = this.rows[uid] ? this.rows[uid].obj : null; if (!node) return; node.style.display = 'none'; if (sel_next) this.select_next(); delete this.rows[uid]; this.rowcount--; // fix list header after removing any rows clearTimeout(this.resize_timeout) this.resize_timeout = setTimeout(function() { self.resize(); }, 50); }, /** * Add row to the list and initialize it */ insert_row: function(row, before) { var self = this, tbody = this.tbody; // create a real dom node first if (row.nodeName === undefined) { // for performance reasons use DOM instead of jQuery here var domrow = document.createElement(this.row_tagname()); if (row.id) domrow.id = row.id; if (row.className) domrow.className = row.className; if (row.style) $.extend(domrow.style, row.style); if (row.uid) $(domrow).data('uid', String(row.uid)); // #1489906 for (var e, domcell, col, i=0; row.cols && i < row.cols.length; i++) { col = row.cols[i]; domcell = document.createElement(this.col_tagname()); if (col.className) domcell.className = col.className; if (col.innerHTML) domcell.innerHTML = col.innerHTML; for (e in col.events) domcell['on' + e] = col.events[e]; domrow.appendChild(domcell); } row = domrow; } if (before && tbody.childNodes.length) tbody.insertBefore(row, (typeof before == 'object' && before.parentNode == tbody) ? before : tbody.firstChild); else tbody.appendChild(row); this.init_row(row); this.rowcount++; // fix list header after adding any rows clearTimeout(this.resize_timeout) this.resize_timeout = setTimeout(function() { self.resize(); }, 50); }, /** * */ update_row: function(id, cols, newid, select) { var row = this.rows[id]; if (!row) return false; var domrow = row.obj; for (var domcell, col, i=0; cols && i < cols.length; i++) { this.get_cell(domrow, i).html(cols[i]); } if (newid) { delete this.rows[id]; domrow.id = 'rcmrow' + newid; this.init_row(domrow); if (select) this.selection[0] = newid; } }, /** * Set focus to the list */ focus: function(e) { if (this.focused) return; this.focused = true; if (e) rcube_event.cancel(e); var focus_elem = null; if (this.last_selected && this.rows[this.last_selected]) { focus_elem = $(this.rows[this.last_selected].obj).find(this.col_tagname()).eq(this.subject_col).attr('tabindex', '0'); } // Un-focus already focused elements (#1487123, #1487316, #1488600, #1488620) if (focus_elem && focus_elem.length) { // We now fix this by explicitly assigning focus to a dedicated link element this.focus_noscroll(focus_elem); } else { // It looks that window.focus() does the job for all browsers, but not Firefox (#1489058) $('iframe,:focus:not(body)').blur(); window.focus(); } $(this.list).addClass('focus').removeAttr('tabindex'); // set internal focus pointer to first row if (!this.last_selected) this.select_first(CONTROL_KEY); }, /** * remove focus from the list */ blur: function(e) { this.focused = false; // avoid the table getting focus right again var me = this; setTimeout(function(){ $(me.list).removeClass('focus').attr('tabindex', '0'); }, 20); if (this.last_selected && this.rows[this.last_selected]) { $(this.rows[this.last_selected].obj) .find(this.col_tagname()).eq(this.subject_col).removeAttr('tabindex'); } }, /** * Focus the given element without scrolling the list container */ focus_noscroll: function(elem) { var y = this.frame.scrollTop || this.frame.scrollY; elem.focus(); this.frame.scrollTop = y; }, /** * Set/unset the given column as hidden */ hide_column: function(col, hide) { var method = hide ? 'addClass' : 'removeClass'; if (this.fixed_header) $(this.row_tagname()+' '+this.col_tagname()+'.'+col, this.fixed_header)[method]('hidden'); $(this.row_tagname()+' '+this.col_tagname()+'.'+col, this.list)[method]('hidden'); }, /** * onmousedown-handler of message list column */ drag_column: function(e, col) { if (this.colcount > 1) { this.drag_start = true; this.drag_mouse_start = rcube_event.get_mouse_pos(e); rcube_event.add_listener({event:'mousemove', object:this, method:'column_drag_mouse_move'}); rcube_event.add_listener({event:'mouseup', object:this, method:'column_drag_mouse_up'}); // enable dragging over iframes this.add_dragfix(); // find selected column number for (var i=0; i<this.thead.rows[0].cells.length; i++) { if (col == this.thead.rows[0].cells[i]) { this.selected_column = i; break; } } } return false; }, /** * onmousedown-handler of message list row */ drag_row: function(e, id) { // don't do anything (another action processed before) if (!this.is_event_target(e)) return true; // accept right-clicks if (rcube_event.get_button(e) == 2) return true; this.in_selection_before = e && e.istouch || this.in_selection(id) ? id : false; // selects currently unselected row if (!this.in_selection_before) { var mod_key = rcube_event.get_modifier(e); this.select_row(id, mod_key, true); } if (this.draggable && this.selection.length && this.in_selection(id)) { this.drag_start = true; this.drag_mouse_start = rcube_event.get_mouse_pos(e); rcube_event.add_listener({event:'mousemove', object:this, method:'drag_mouse_move'}); rcube_event.add_listener({event:'mouseup', object:this, method:'drag_mouse_up'}); if (bw.touch) { rcube_event.add_listener({event:'touchmove', object:this, method:'drag_mouse_move'}); rcube_event.add_listener({event:'touchend', object:this, method:'drag_mouse_up'}); } // enable dragging over iframes this.add_dragfix(); } return false; }, /** * onmouseup-handler of message list row */ click_row: function(e, id) { // don't do anything (another action processed before) if (!this.is_event_target(e)) return true; var now = new Date().getTime(), dblclicked = now - this.rows[id].clicked < this.dblclick_time; // unselects currently selected row if (!this.drag_active && !dblclicked && this.in_selection_before == id) this.select_row(id, rcube_event.get_modifier(e), true); this.drag_start = false; this.in_selection_before = false; // row was double clicked if (this.rowcount && dblclicked && this.in_selection(id)) { this.triggerEvent('dblclick'); now = 0; } else this.triggerEvent('click'); if (!this.drag_active) { // remove temp divs this.del_dragfix(); rcube_event.cancel(e); } this.rows[id].clicked = now; this.focus(); return false; }, /** * Check target of the current event */ is_event_target: function(e) { var target = rcube_event.get_target(e), tagname = target.tagName.toLowerCase(); return !(target && (tagname == 'input' || tagname == 'img' || (tagname != 'a' && target.onclick))); }, /* * Returns thread root ID for specified row ID */ find_root: function(uid) { var r = this.rows[uid]; if (r && r.parent_uid) return this.find_root(r.parent_uid); else return uid; }, expand_row: function(e, id) { var row = this.rows[id], evtarget = rcube_event.get_target(e), mod_key = rcube_event.get_modifier(e); // Don't treat double click on the expando as double click on the message. row.clicked = 0; if (row.expanded) { evtarget.className = 'collapsed'; if (mod_key == CONTROL_KEY || this.multiexpand) this.collapse_all(row); else this.collapse(row); } else { evtarget.className = 'expanded'; if (mod_key == CONTROL_KEY || this.multiexpand) this.expand_all(row); else this.expand(row); } }, collapse: function(row) { var r, depth = row.depth, new_row = row ? row.obj.nextSibling : null; row.expanded = false; this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj }); while (new_row) { if (new_row.nodeType == 1) { r = this.rows[new_row.uid]; if (r && r.depth <= depth) break; $(new_row).css('display', 'none'); if (r.expanded) { r.expanded = false; this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row }); } } new_row = new_row.nextSibling; } this.resize(); this.triggerEvent('listupdate'); return false; }, expand: function(row) { var r, p, depth, new_row, last_expanded_parent_depth; if (row) { row.expanded = true; depth = row.depth; new_row = row.obj.nextSibling; this.update_expando(row.id, true); this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj }); } else { var tbody = this.tbody; new_row = tbody.firstChild; depth = 0; last_expanded_parent_depth = 0; } while (new_row) { if (new_row.nodeType == 1) { r = this.rows[new_row.uid]; if (r) { if (row && (!r.depth || r.depth <= depth)) break; if (r.parent_uid) { p = this.rows[r.parent_uid]; if (p && p.expanded) { if ((row && p == row) || last_expanded_parent_depth >= p.depth - 1) { last_expanded_parent_depth = p.depth; $(new_row).css('display', ''); r.expanded = true; this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row }); } } else if (row && (! p || p.depth <= depth)) break; } } } new_row = new_row.nextSibling; } this.resize(); this.triggerEvent('listupdate'); return false; }, collapse_all: function(row) { var depth, new_row, r; if (row) { row.expanded = false; depth = row.depth; new_row = row.obj.nextSibling; this.update_expando(row.id); this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj }); // don't collapse sub-root tree in multiexpand mode if (depth && this.multiexpand) return false; } else { new_row = this.tbody.firstChild; depth = 0; } while (new_row) { if (new_row.nodeType == 1) { if (r = this.rows[new_row.uid]) { if (row && (!r.depth || r.depth <= depth)) break; if (row || r.depth) $(new_row).css('display', 'none'); if (r.has_children && r.expanded) { r.expanded = false; this.update_expando(r.id, false); this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row }); } } } new_row = new_row.nextSibling; } this.resize(); this.triggerEvent('listupdate'); return false; }, expand_all: function(row) { var depth, new_row, r; if (row) { row.expanded = true; depth = row.depth; new_row = row.obj.nextSibling; this.update_expando(row.id, true); this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded, obj:row.obj }); } else { new_row = this.tbody.firstChild; depth = 0; } while (new_row) { if (new_row.nodeType == 1) { if (r = this.rows[new_row.uid]) { if (row && r.depth <= depth) break; $(new_row).css('display', ''); if (r.has_children && !r.expanded) { r.expanded = true; this.update_expando(r.id, true); this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded, obj:new_row }); } } } new_row = new_row.nextSibling; } this.resize(); this.triggerEvent('listupdate'); return false; }, update_expando: function(id, expanded) { var expando = document.getElementById('rcmexpando' + id); if (expando) expando.className = expanded ? 'expanded' : 'collapsed'; }, get_row_uid: function(row) { if (row && row.uid) return row.uid; var uid; if (row && (uid = $(row).data('uid'))) row.uid = uid; else if (row && String(row.id).match(this.id_regexp)) row.uid = RegExp.$1; return row.uid; }, /** * get first/next/previous/last rows that are not hidden */ get_next_row: function() { if (!this.rowcount) return false; var last_selected_row = this.rows[this.last_selected], new_row = last_selected_row ? last_selected_row.obj.nextSibling : null; while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none')) new_row = new_row.nextSibling; return new_row; }, get_prev_row: function() { if (!this.rowcount) return false; var last_selected_row = this.rows[this.last_selected], new_row = last_selected_row ? last_selected_row.obj.previousSibling : null; while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none')) new_row = new_row.previousSibling; return new_row; }, get_first_row: function() { if (this.rowcount) { var i, uid, rows = this.tbody.childNodes; for (i=0; i<rows.length; i++) if (rows[i].id && (uid = this.get_row_uid(rows[i]))) return uid; } return null; }, get_last_row: function() { if (this.rowcount) { var i, uid, rows = this.tbody.childNodes; for (i=rows.length-1; i>=0; i--) if (rows[i].id && (uid = this.get_row_uid(rows[i]))) return uid; } return null; }, row_tagname: function() { var row_tagnames = { table:'tr', ul:'li', '*':'div' }; return row_tagnames[this.tagname] || row_tagnames['*']; }, col_tagname: function() { var col_tagnames = { table:'td', '*':'span' }; return col_tagnames[this.tagname] || col_tagnames['*']; }, get_cell: function(row, index) { return $(this.col_tagname(), row).eq(index); }, /** * selects or unselects the proper row depending on the modifier key pressed */ select_row: function(id, mod_key, with_mouse) { var select_before = this.selection.join(','), in_selection_before = this.in_selection(id); if (!this.multiselect && with_mouse) mod_key = 0; if (!this.shift_start) this.shift_start = id if (!mod_key) { this.shift_start = id; this.highlight_row(id, false); this.multi_selecting = false; } else { switch (mod_key) { case SHIFT_KEY: this.shift_select(id, false); break; case CONTROL_KEY: if (with_mouse) { this.shift_start = id; this.highlight_row(id, true); } break; case CONTROL_SHIFT_KEY: this.shift_select(id, true); break; default: this.highlight_row(id, false); break; } this.multi_selecting = true; } if (this.last_selected && this.rows[this.last_selected]) { $(this.rows[this.last_selected].obj).removeClass('focused') .find(this.col_tagname()).eq(this.subject_col).removeAttr('tabindex'); } // unselect if toggleselect is active and the same row was clicked again if (this.toggleselect && in_selection_before && !mod_key) { this.clear_selection(); } // trigger event if selection changed else if (this.selection.join(',') != select_before) { this.triggerEvent('select'); } if (this.rows[id]) { $(this.rows[id].obj).addClass('focused'); // set cursor focus to link inside selected row if (this.focused) this.focus_noscroll($(this.rows[id].obj).find(this.col_tagname()).eq(this.subject_col).attr('tabindex', '0')); } if (!this.selection.length) this.shift_start = null; this.last_selected = id; }, /** * Alias method for select_row */ select: function(id) { this.select_row(id, false); this.scrollto(id); }, /** * Select row next to the last selected one. * Either below or above. */ select_next: function() { var next_row = this.get_next_row(), prev_row = this.get_prev_row(), new_row = (next_row) ? next_row : prev_row; if (new_row) this.select_row(new_row.uid, false, false); }, /** * Select first row */ select_first: function(mod_key) { var row = this.get_first_row(); if (row) { this.select_row(row, mod_key, false); this.scrollto(row); } }, /** * Select last row */ select_last: function(mod_key) { var row = this.get_last_row(); if (row) { this.select_row(row, mod_key, false); this.scrollto(row); } }, /** * Add all childs of the given row to selection */ select_children: function(uid) { var i, children = this.row_children(uid), len = children.length; for (i=0; i<len; i++) if (!this.in_selection(children[i])) this.select_row(children[i], CONTROL_KEY, true); }, /** * Perform selection when shift key is pressed */ shift_select: function(id, control) { if (!this.rows[this.shift_start] || !this.selection.length) this.shift_start = id; var n, i, j, to_row = this.rows[id], from_rowIndex = this._rowIndex(this.rows[this.shift_start].obj), to_rowIndex = this._rowIndex(to_row.obj); // if we're going down the list, and we hit a thread, and it's closed, select the whole thread if (from_rowIndex < to_rowIndex && !to_row.expanded && to_row.has_children) if (to_row = this.rows[(this.row_children(id)).pop()]) to_rowIndex = this._rowIndex(to_row.obj); i = ((from_rowIndex < to_rowIndex) ? from_rowIndex : to_rowIndex), j = ((from_rowIndex > to_rowIndex) ? from_rowIndex : to_rowIndex); // iterate through the entire message list for (n in this.rows) { if (this._rowIndex(this.rows[n].obj) >= i && this._rowIndex(this.rows[n].obj) <= j) { if (!this.in_selection(n)) { this.highlight_row(n, true); } } else { if (this.in_selection(n) && !control) { this.highlight_row(n, true); } } } }, /** * Helper method to emulate the rowIndex property of non-tr elements */ _rowIndex: function(obj) { return (obj.rowIndex !== undefined) ? obj.rowIndex : $(obj).prevAll().length; }, /** * Check if given id is part of the current selection */ in_selection: function(id) { for (var n in this.selection) if (this.selection[n] == id) return true; return false; }, /** * Select each row in list */ select_all: function(filter) { if (!this.rowcount) return false; // reset but remember selection first var n, select_before = this.selection.join(','); this.selection = []; for (n in this.rows) { if (!filter || this.rows[n][filter] == true) { this.last_selected = n; this.highlight_row(n, true, true); } else { $(this.rows[n].obj).removeClass('selected').removeAttr('aria-selected'); } } // trigger event if selection changed if (this.selection.join(',') != select_before) this.triggerEvent('select'); this.focus(); return true; }, /** * Invert selection */ invert_selection: function() { if (!this.rowcount) return false; // remember old selection var n, select_before = this.selection.join(','); for (n in this.rows) this.highlight_row(n, true); // trigger event if selection changed if (this.selection.join(',') != select_before) this.triggerEvent('select'); this.focus(); return true; }, /** * Unselect selected row(s) */ clear_selection: function(id, no_event) { var n, num_select = this.selection.length; // one row if (id) { for (n in this.selection) if (this.selection[n] == id) { this.selection.splice(n,1); break; } } // all rows else { for (n in this.selection) if (this.rows[this.selection[n]]) { $(this.rows[this.selection[n]].obj).removeClass('selected').removeAttr('aria-selected'); } this.selection = []; } if (num_select && !this.selection.length && !no_event) { this.triggerEvent('select'); this.last_selected = null; } }, /** * Getter for the selection array */ get_selection: function(deep) { var res = $.merge([], this.selection); // return children of selected threads even if only root is selected if (deep !== false && res.length) { for (var uid, uids, i=0, len=res.length; i<len; i++) { uid = res[i]; if (this.rows[uid] && this.rows[uid].has_children && !this.rows[uid].expanded) { uids = this.row_children(uid); for (var j=0, uids_len=uids.length; j<uids_len; j++) { uid = uids[j]; if (!this.in_selection(uid)) res.push(uid); } } } } return res; }, /** * Return the ID if only one row is selected */ get_single_selection: function() { if (this.selection.length == 1) return this.selection[0]; else return null; }, /** * Highlight/unhighlight a row */ highlight_row: function(id, multiple, norecur) { if (!this.rows[id]) return; if (!multiple) { if (this.selection.length > 1 || !this.in_selection(id)) { this.clear_selection(null, true); this.selection[0] = id; $(this.rows[id].obj).addClass('selected').attr('aria-selected', 'true'); } } else { if (!this.in_selection(id)) { // select row this.selection.push(id); $(this.rows[id].obj).addClass('selected').attr('aria-selected', 'true'); if (!norecur && !this.rows[id].expanded) this.highlight_children(id, true); } else { // unselect row var p = $.inArray(id, this.selection), a_pre = this.selection.slice(0, p), a_post = this.selection.slice(p+1, this.selection.length); this.selection = a_pre.concat(a_post); $(this.rows[id].obj).removeClass('selected').removeAttr('aria-selected'); if (!norecur && !this.rows[id].expanded) this.highlight_children(id, false); } } }, /** * Highlight/unhighlight all childs of the given row */ highlight_children: function(id, status) { var i, selected, children = this.row_children(id), len = children.length; for (i=0; i<len; i++) { selected = this.in_selection(children[i]); if ((status && !selected) || (!status && selected)) this.highlight_row(children[i], true, true); } }, /** * Handler for keyboard events */ key_press: function(e) { var target = e.target || {}; if (this.focused != true || target.nodeName == 'INPUT' || target.nodeName == 'TEXTAREA' || target.nodeName == 'SELECT') return true; var keyCode = rcube_event.get_keycode(e), mod_key = rcube_event.get_modifier(e); switch (keyCode) { case 40: case 38: case 63233: // "down", in safari keypress case 63232: // "up", in safari keypress // Stop propagation so that the browser doesn't scroll rcube_event.cancel(e); return this.use_arrow_key(keyCode, mod_key); case 32: rcube_event.cancel(e); return this.select_row(this.last_selected, mod_key, true); case 37: // Left arrow key case 39: // Right arrow key // Stop propagation rcube_event.cancel(e); var ret = this.use_arrow_key(keyCode, mod_key); this.key_pressed = keyCode; this.modkey = mod_key; this.triggerEvent('keypress'); this.modkey = 0; return ret; case 36: // Home this.select_first(mod_key); return rcube_event.cancel(e); case 35: // End this.select_last(mod_key); return rcube_event.cancel(e); case 27: if (this.drag_active) return this.drag_mouse_up(e); if (this.col_drag_active) { this.selected_column = null; return this.column_drag_mouse_up(e); } return rcube_event.cancel(e); case 9: // Tab this.blur(); break; case 13: // Enter if (!this.selection.length) this.select_row(this.last_selected, mod_key, false); default: this.key_pressed = keyCode; this.modkey = mod_key; this.triggerEvent('keypress'); this.modkey = 0; if (this.key_pressed == this.BACKSPACE_KEY) return rcube_event.cancel(e); } return true; }, /** * Special handling method for arrow keys */ use_arrow_key: function(keyCode, mod_key) { var new_row, selected_row = this.rows[this.last_selected]; // Safari uses the nonstandard keycodes 63232/63233 for up/down, if we're // using the keypress event (but not the keydown or keyup event). if (keyCode == 40 || keyCode == 63233) // down arrow key pressed new_row = this.get_next_row(); else if (keyCode == 38 || keyCode == 63232) // up arrow key pressed new_row = this.get_prev_row(); else { if (!selected_row || !selected_row.has_children) return; // expand if (keyCode == 39) { if (selected_row.expanded) return; if (mod_key == CONTROL_KEY || this.multiexpand) this.expand_all(selected_row); else this.expand(selected_row); } // collapse else { if (!selected_row.expanded) return; if (mod_key == CONTROL_KEY || this.multiexpand) this.collapse_all(selected_row); else this.collapse(selected_row); } this.update_expando(selected_row.id, selected_row.expanded); return false; } if (new_row) { // simulate ctr-key if no rows are selected if (!mod_key && !this.selection.length) mod_key = CONTROL_KEY; this.select_row(new_row.uid, mod_key, false); this.scrollto(new_row.uid); } else if (!new_row && !selected_row) { // select the first row if none selected yet this.select_first(CONTROL_KEY); } return false; }, /** * Try to scroll the list to make the specified row visible */ scrollto: function(id) { var row = this.rows[id].obj; if (row && this.frame) { var scroll_to = Number(row.offsetTop), head_offset = 0; // expand thread if target row is hidden (collapsed) if (!scroll_to && this.rows[id].parent_uid) { var parent = this.find_root(this.rows[id].uid); this.expand_all(this.rows[parent]); scroll_to = Number(row.offsetTop); } if (this.fixed_header) head_offset = Number(this.thead.offsetHeight); // if row is above the frame (or behind header) if (scroll_to < Number(this.frame.scrollTop) + head_offset) { // scroll window so that row isn't behind header this.frame.scrollTop = scroll_to - head_offset; } else if (scroll_to + Number(row.offsetHeight) > Number(this.frame.scrollTop) + Number(this.frame.offsetHeight)) this.frame.scrollTop = (scroll_to + Number(row.offsetHeight)) - Number(this.frame.offsetHeight); } }, /** * Handler for mouse move events */ drag_mouse_move: function(e) { // convert touch event if (e.type == 'touchmove') { if (e.touches.length == 1 && e.changedTouches.length == 1) e = rcube_event.touchevent(e.changedTouches[0]); else return rcube_event.cancel(e); } if (this.drag_start) { // check mouse movement, of less than 3 pixels, don't start dragging var m = rcube_event.get_mouse_pos(e), limit = 10, selection = [], self = this; 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)) return false; // remember dragging start position this.drag_start_pos = {left: m.x, top: m.y}; // initialize drag layer if (!this.draglayer) this.draglayer = $('<div>').attr('id', 'rcmdraglayer') .css({position: 'absolute', display: 'none', 'z-index': 2000}) .appendTo(document.body); else this.draglayer.html(''); // get selected rows (in display order), don't use this.selection here $(this.row_tagname() + '.selected', this.tbody).each(function() { var uid = self.get_row_uid(this), row = self.rows[uid]; if (!row || $.inArray(uid, selection) > -1) return; selection.push(uid); // also handle children of (collapsed) trees for dragging (they might be not selected) if (row.has_children && !row.expanded) $.each(self.row_children(uid), function() { if ($.inArray(this, selection) > -1) return; selection.push(this); }); // break the loop asap if (selection.length > limit + 1) return false; }); // append subject (of every row up to the limit) to the drag layer $.each(selection, function(i, uid) { if (i > limit) { self.draglayer.append('...'); return false; } $('> ' + self.col_tagname(), self.rows[uid].obj).each(function(n, cell) { if (self.subject_col < 0 || (self.subject_col >= 0 && self.subject_col == n)) { var subject = $(cell).text(); if (subject) { // remove leading spaces subject = $.trim(subject); // truncate line to 50 characters subject = (subject.length > 50 ? subject.substring(0, 50) + '...' : subject); self.draglayer.append($('<div>').text(subject)); return false; } } }); }); this.draglayer.show(); this.drag_active = true; this.triggerEvent('dragstart'); } if (this.drag_active && this.draglayer) { var pos = rcube_event.get_mouse_pos(e); this.draglayer.css({ left:(pos.x+20)+'px', top:(pos.y-5 + (bw.ie ? document.documentElement.scrollTop : 0))+'px' }); this.triggerEvent('dragmove', e?e:window.event); } this.drag_start = false; return false; }, /** * Handler for mouse up events */ drag_mouse_up: function(e) { document.onmousemove = null; if (e.type == 'touchend') { if (e.changedTouches.length != 1) return rcube_event.cancel(e); } if (this.draglayer && this.draglayer.is(':visible')) { if (this.drag_start_pos) this.draglayer.animate(this.drag_start_pos, 300, 'swing').hide(20); else this.draglayer.hide(); } if (this.drag_active) this.focus(); this.drag_active = false; rcube_event.remove_listener({event:'mousemove', object:this, method:'drag_mouse_move'}); rcube_event.remove_listener({event:'mouseup', object:this, method:'drag_mouse_up'}); if (bw.touch) { rcube_event.remove_listener({event:'touchmove', object:this, method:'drag_mouse_move'}); rcube_event.remove_listener({event:'touchend', object:this, method:'drag_mouse_up'}); } // remove temp divs this.del_dragfix(); this.triggerEvent('dragend', e); return rcube_event.cancel(e); }, /** * Handler for mouse move events for dragging list column */ column_drag_mouse_move: function(e) { if (this.drag_start) { // check mouse movement, of less than 3 pixels, don't start dragging var i, m = rcube_event.get_mouse_pos(e); 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)) return false; if (!this.col_draglayer) { var lpos = $(this.list).offset(), cells = this.thead.rows[0].cells; // fix layer position when list is scrolled lpos.top += this.list.scrollTop + this.list.parentNode.scrollTop; // create dragging layer this.col_draglayer = $('<div>').attr('id', 'rcmcoldraglayer') .css(lpos).css({ position:'absolute', 'z-index':2001, 'background-color':'white', opacity:0.75, height: (this.frame.offsetHeight-2)+'px', width: (this.frame.offsetWidth-2)+'px' }) .appendTo(document.body) // ... and column position indicator .append($('<div>').attr('id', 'rcmcolumnindicator') .css({ position:'absolute', 'border-right':'2px dotted #555', 'z-index':2002, height: (this.frame.offsetHeight-2)+'px' })); this.cols = []; this.list_pos = this.list_min_pos = lpos.left; // save columns positions for (i=0; i<cells.length; i++) { this.cols[i] = cells[i].offsetWidth; if (this.column_fixed !== null && i <= this.column_fixed) { this.list_min_pos += this.cols[i]; } } } this.col_draglayer.show(); this.col_drag_active = true; this.triggerEvent('column_dragstart'); } // set column indicator position if (this.col_drag_active && this.col_draglayer) { var i, cpos = 0, pos = rcube_event.get_mouse_pos(e); for (i=0; i<this.cols.length; i++) { if (pos.x >= this.cols[i]/2 + this.list_pos + cpos) cpos += this.cols[i]; else break; } // handle fixed columns on left if (i == 0 && this.list_min_pos > pos.x) cpos = this.list_min_pos - this.list_pos; // empty list needs some assignment else if (!this.list.rowcount && i == this.cols.length) cpos -= 2; $('#rcmcolumnindicator').css({ width: cpos+'px'}); this.triggerEvent('column_dragmove', e?e:window.event); } this.drag_start = false; return false; }, /** * Handler for mouse up events for dragging list columns */ column_drag_mouse_up: function(e) { document.onmousemove = null; if (this.col_draglayer) { (this.col_draglayer).remove(); this.col_draglayer = null; } if (this.col_drag_active) this.focus(); this.col_drag_active = false; rcube_event.remove_listener({event:'mousemove', object:this, method:'column_drag_mouse_move'}); rcube_event.remove_listener({event:'mouseup', object:this, method:'column_drag_mouse_up'}); // remove temp divs this.del_dragfix(); if (this.selected_column !== null && this.cols && this.cols.length) { var i, cpos = 0, pos = rcube_event.get_mouse_pos(e); // find destination position for (i=0; i<this.cols.length; i++) { if (pos.x >= this.cols[i]/2 + this.list_pos + cpos) cpos += this.cols[i]; else break; } if (i != this.selected_column && i != this.selected_column+1) { this.column_replace(this.selected_column, i); } } this.triggerEvent('column_dragend', e); return rcube_event.cancel(e); }, /** * Returns IDs of all rows in a thread (except root) for specified root */ row_children: function(uid) { if (!this.rows[uid] || !this.rows[uid].has_children) return []; var res = [], depth = this.rows[uid].depth, row = this.rows[uid].obj.nextSibling; while (row) { if (row.nodeType == 1) { if (r = this.rows[row.uid]) { if (!r.depth || r.depth <= depth) break; res.push(r.uid); } } row = row.nextSibling; } return res; }, /** * Creates a layer for drag&drop over iframes */ add_dragfix: function() { $('iframe').each(function() { $('<div class="iframe-dragdrop-fix"></div>') .css({background: '#fff', width: this.offsetWidth+'px', height: this.offsetHeight+'px', position: 'absolute', opacity: '0.001', zIndex: 1000 }) .css($(this).offset()) .appendTo(document.body); }); }, /** * Removes the layer for drag&drop over iframes */ del_dragfix: function() { $('div.iframe-dragdrop-fix').remove(); }, /** * Replaces two columns */ column_replace: function(from, to) { // only supported for <table> lists if (!this.thead || !this.thead.rows) return; var len, cells = this.thead.rows[0].cells, elem = cells[from], before = cells[to], td = document.createElement('td'); // replace header cells if (before) cells[0].parentNode.insertBefore(td, before); else cells[0].parentNode.appendChild(td); cells[0].parentNode.replaceChild(elem, td); // replace list cells for (r=0, len=this.tbody.rows.length; r<len; r++) { row = this.tbody.rows[r]; elem = row.cells[from]; before = row.cells[to]; td = document.createElement('td'); if (before) row.insertBefore(td, before); else row.appendChild(td); row.replaceChild(elem, td); } // update subject column position if (this.subject_col == from) this.subject_col = to > from ? to - 1 : to; else if (this.subject_col < from && to <= this.subject_col) this.subject_col++; else if (this.subject_col > from && to >= this.subject_col) this.subject_col--; if (this.fixed_header) this.init_header(); this.triggerEvent('column_replace'); } }; rcube_list_widget.prototype.addEventListener = rcube_event_engine.prototype.addEventListener; rcube_list_widget.prototype.removeEventListener = rcube_event_engine.prototype.removeEventListener; rcube_list_widget.prototype.triggerEvent = rcube_event_engine.prototype.triggerEvent; // static rcube_list_widget._instances = [];