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895 lines
20 KiB
JavaScript
895 lines
20 KiB
JavaScript
/*
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+-----------------------------------------------------------------------+
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| RoundCube List Widget |
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| |
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| This file is part of the RoundCube Webmail client |
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| Copyright (C) 2006-2009, RoundCube Dev, - Switzerland |
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| Licensed under the GNU GPL |
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| |
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+-----------------------------------------------------------------------+
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| Authors: Thomas Bruederli <roundcube@gmail.com> |
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| Charles McNulty <charles@charlesmcnulty.com> |
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+-----------------------------------------------------------------------+
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| Requires: common.js |
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+-----------------------------------------------------------------------+
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$Id$
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*/
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/**
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* RoundCube List Widget class
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* @contructor
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*/
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function rcube_list_widget(list, p)
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{
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// static contants
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this.ENTER_KEY = 13;
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this.DELETE_KEY = 46;
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this.BACKSPACE_KEY = 8;
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this.list = list ? list : null;
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this.frame = null;
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this.rows = [];
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this.selection = [];
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this.rowcount = 0;
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this.subject_col = -1;
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this.shiftkey = false;
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this.multiselect = false;
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this.multi_selecting = false;
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this.draggable = false;
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this.keyboard = false;
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this.toggleselect = false;
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this.dont_select = false;
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this.drag_active = false;
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this.last_selected = 0;
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this.shift_start = 0;
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this.in_selection_before = false;
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this.focused = false;
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this.drag_mouse_start = null;
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this.dblclick_time = 600;
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this.row_init = function(){};
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this.events = { click:[], dblclick:[], select:[], keypress:[], dragstart:[], dragmove:[], dragend:[] };
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// overwrite default paramaters
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if (p && typeof(p)=='object')
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for (var n in p)
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this[n] = p[n];
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}
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rcube_list_widget.prototype = {
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/**
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* get all message rows from HTML table and init each row
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*/
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init: function()
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{
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if (this.list && this.list.tBodies[0])
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{
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this.rows = new Array();
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this.rowcount = 0;
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var row;
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for(var r=0; r<this.list.tBodies[0].childNodes.length; r++)
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{
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row = this.list.tBodies[0].childNodes[r];
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while (row && (row.nodeType != 1 || row.style.display == 'none'))
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{
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row = row.nextSibling;
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r++;
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}
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this.init_row(row);
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this.rowcount++;
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}
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this.frame = this.list.parentNode;
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// set body events
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if (this.keyboard) {
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rcube_event.add_listener({element:document, event:'keyup', object:this, method:'key_press'});
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rcube_event.add_listener({element:document, event:'keydown', object:this, method:'key_down'});
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}
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}
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},
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/**
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*
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*/
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init_row: function(row)
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{
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// make references in internal array and set event handlers
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if (row && String(row.id).match(/rcmrow([a-z0-9\-_=]+)/i))
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{
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var p = this;
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var uid = RegExp.$1;
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row.uid = uid;
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this.rows[uid] = {uid:uid, id:row.id, obj:row, classname:row.className};
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// set eventhandlers to table row
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row.onmousedown = function(e){ return p.drag_row(e, this.uid); };
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row.onmouseup = function(e){ return p.click_row(e, this.uid); };
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if (document.all)
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row.onselectstart = function() { return false; };
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this.row_init(this.rows[uid]);
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}
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},
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/**
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*
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*/
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clear: function(sel)
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{
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var tbody = document.createElement('TBODY');
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this.list.insertBefore(tbody, this.list.tBodies[0]);
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this.list.removeChild(this.list.tBodies[1]);
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this.rows = new Array();
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this.rowcount = 0;
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if (sel) this.clear_selection();
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},
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/**
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* 'remove' message row from list (just hide it)
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*/
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remove_row: function(uid, sel_next)
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{
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if (this.rows[uid].obj)
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this.rows[uid].obj.style.display = 'none';
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if (sel_next)
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this.select_next();
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this.rows[uid] = null;
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this.rowcount--;
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},
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/**
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*
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*/
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insert_row: function(row, attop)
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{
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var tbody = this.list.tBodies[0];
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if (attop && tbody.rows.length)
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tbody.insertBefore(row, tbody.firstChild);
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else
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tbody.appendChild(row);
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this.init_row(row);
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this.rowcount++;
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},
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/**
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* Set focus to the list
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*/
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focus: function(e)
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{
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this.focused = true;
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for (var n=0; n<this.selection.length; n++)
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{
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id = this.selection[n];
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if (this.rows[id] && this.rows[id].obj)
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{
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this.set_classname(this.rows[id].obj, 'selected', true);
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this.set_classname(this.rows[id].obj, 'unfocused', false);
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}
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}
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if (e || (e = window.event))
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rcube_event.cancel(e);
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},
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/**
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* remove focus from the list
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*/
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blur: function()
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{
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var id;
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this.focused = false;
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for (var n=0; n<this.selection.length; n++)
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{
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id = this.selection[n];
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if (this.rows[id] && this.rows[id].obj)
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{
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this.set_classname(this.rows[id].obj, 'selected', false);
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this.set_classname(this.rows[id].obj, 'unfocused', true);
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}
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}
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},
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/**
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* onmousedown-handler of message list row
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*/
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drag_row: function(e, id)
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{
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// don't do anything (another action processed before)
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var evtarget = rcube_event.get_target(e);
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if (this.dont_select || (evtarget && (evtarget.tagName == 'INPUT' || evtarget.tagName == 'IMG')))
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return false;
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// accept right-clicks
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if (rcube_event.get_button(e) == 2)
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return true;
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this.in_selection_before = this.in_selection(id) ? id : false;
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// selects currently unselected row
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if (!this.in_selection_before)
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{
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var mod_key = rcube_event.get_modifier(e);
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this.select_row(id, mod_key, false);
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}
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if (this.draggable && this.selection.length)
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{
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this.drag_start = true;
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this.drag_mouse_start = rcube_event.get_mouse_pos(e);
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rcube_event.add_listener({element:document, event:'mousemove', object:this, method:'drag_mouse_move'});
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rcube_event.add_listener({element:document, event:'mouseup', object:this, method:'drag_mouse_up'});
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// add listener for iframes
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var iframes = document.getElementsByTagName('IFRAME');
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this.iframe_events = Object();
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for (var n in iframes)
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{
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var iframedoc = null;
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if (iframes[n].contentDocument)
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iframedoc = iframes[n].contentDocument;
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else if (iframes[n].contentWindow)
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iframedoc = iframes[n].contentWindow.document;
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else if (iframes[n].document)
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iframedoc = iframes[n].document;
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if (iframedoc)
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{
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var list = this;
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var pos = rcube_get_object_pos(document.getElementById(iframes[n].id));
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this.iframe_events[n] = function(e) { e._offset = pos; return list.drag_mouse_move(e); }
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if (iframedoc.addEventListener)
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iframedoc.addEventListener('mousemove', this.iframe_events[n], false);
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else if (iframes[n].attachEvent)
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iframedoc.attachEvent('onmousemove', this.iframe_events[n]);
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else
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iframedoc['onmousemove'] = this.iframe_events[n];
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rcube_event.add_listener({element:iframedoc, event:'mouseup', object:this, method:'drag_mouse_up'});
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}
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}
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}
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return false;
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},
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/**
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* onmouseup-handler of message list row
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*/
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click_row: function(e, id)
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{
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var now = new Date().getTime();
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var mod_key = rcube_event.get_modifier(e);
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var evtarget = rcube_event.get_target(e);
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if ((evtarget && (evtarget.tagName == 'INPUT' || evtarget.tagName == 'IMG')))
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return false;
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// don't do anything (another action processed before)
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if (this.dont_select)
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{
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this.dont_select = false;
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return false;
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}
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var dblclicked = now - this.rows[id].clicked < this.dblclick_time;
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// unselects currently selected row
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if (!this.drag_active && this.in_selection_before == id && !dblclicked)
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this.select_row(id, mod_key, false);
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this.drag_start = false;
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this.in_selection_before = false;
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// row was double clicked
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if (this.rows && dblclicked && this.in_selection(id))
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this.trigger_event('dblclick');
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else
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this.trigger_event('click');
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if (!this.drag_active)
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rcube_event.cancel(e);
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this.rows[id].clicked = now;
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return false;
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},
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/**
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* get next/previous/last rows that are not hidden
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*/
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get_next_row: function()
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{
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if (!this.rows)
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return false;
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var last_selected_row = this.rows[this.last_selected];
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var new_row = last_selected_row ? last_selected_row.obj.nextSibling : null;
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while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none'))
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new_row = new_row.nextSibling;
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return new_row;
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},
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get_prev_row: function()
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{
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if (!this.rows)
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return false;
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var last_selected_row = this.rows[this.last_selected];
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var new_row = last_selected_row ? last_selected_row.obj.previousSibling : null;
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while (new_row && (new_row.nodeType != 1 || new_row.style.display == 'none'))
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new_row = new_row.previousSibling;
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return new_row;
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},
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get_last_row: function()
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{
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if (this.rowcount)
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{
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var rows = this.list.tBodies[0].rows;
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for(var i=rows.length-1; i>=0; i--)
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if(rows[i].id && String(rows[i].id).match(/rcmrow([a-z0-9\-_=]+)/i) && this.rows[RegExp.$1] != null)
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return RegExp.$1;
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}
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return null;
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},
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/**
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* selects or unselects the proper row depending on the modifier key pressed
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*/
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select_row: function(id, mod_key, with_mouse)
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{
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var select_before = this.selection.join(',');
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if (!this.multiselect)
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mod_key = 0;
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if (!this.shift_start)
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this.shift_start = id
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if (!mod_key)
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{
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this.shift_start = id;
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this.highlight_row(id, false);
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this.multi_selecting = false;
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}
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else
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{
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switch (mod_key)
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{
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case SHIFT_KEY:
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this.shift_select(id, false);
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break;
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case CONTROL_KEY:
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if (!with_mouse)
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this.highlight_row(id, true);
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break;
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case CONTROL_SHIFT_KEY:
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this.shift_select(id, true);
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break;
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default:
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this.highlight_row(id, false);
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break;
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}
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this.multi_selecting = true;
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}
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// trigger event if selection changed
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if (this.selection.join(',') != select_before)
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this.trigger_event('select');
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if (this.last_selected != 0 && this.rows[this.last_selected])
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this.set_classname(this.rows[this.last_selected].obj, 'focused', false);
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// unselect if toggleselect is active and the same row was clicked again
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if (this.toggleselect && this.last_selected == id)
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{
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this.clear_selection();
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id = null;
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}
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else
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this.set_classname(this.rows[id].obj, 'focused', true);
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if (!this.selection.length)
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this.shift_start = null;
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this.last_selected = id;
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},
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/**
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* Alias method for select_row
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*/
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select: function(id)
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{
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this.select_row(id, false);
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this.scrollto(id);
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},
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/**
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* Select row next to the last selected one.
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* Either below or above.
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*/
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select_next: function()
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{
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var next_row = this.get_next_row();
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var prev_row = this.get_prev_row();
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var new_row = (next_row) ? next_row : prev_row;
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if (new_row)
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this.select_row(new_row.uid, false, false);
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},
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/**
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* Perform selection when shift key is pressed
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*/
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shift_select: function(id, control)
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{
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if (!this.rows[this.shift_start] || !this.selection.length)
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this.shift_start = id;
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var from_rowIndex = this.rows[this.shift_start].obj.rowIndex;
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var to_rowIndex = this.rows[id].obj.rowIndex;
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var i = ((from_rowIndex < to_rowIndex)? from_rowIndex : to_rowIndex);
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var j = ((from_rowIndex > to_rowIndex)? from_rowIndex : to_rowIndex);
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// iterate through the entire message list
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for (var n in this.rows)
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{
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if ((this.rows[n].obj.rowIndex >= i) && (this.rows[n].obj.rowIndex <= j))
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{
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if (!this.in_selection(n))
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this.highlight_row(n, true);
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}
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else
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{
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if (this.in_selection(n) && !control)
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this.highlight_row(n, true);
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}
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}
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},
|
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|
|
|
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/**
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* Check if given id is part of the current selection
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*/
|
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in_selection: function(id)
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{
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for(var n in this.selection)
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if (this.selection[n]==id)
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return true;
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return false;
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},
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|
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|
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/**
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* Select each row in list
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*/
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select_all: function(filter)
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{
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if (!this.rows || !this.rows.length)
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return false;
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|
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// reset but remember selection first
|
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var select_before = this.selection.join(',');
|
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this.selection = new Array();
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|
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for (var n in this.rows)
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{
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if (!filter || (this.rows[n] && this.rows[n][filter] == true))
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{
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this.last_selected = n;
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this.highlight_row(n, true);
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}
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else if (this.rows[n])
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{
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this.set_classname(this.rows[n].obj, 'selected', false);
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this.set_classname(this.rows[n].obj, 'unfocused', false);
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}
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}
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|
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// trigger event if selection changed
|
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if (this.selection.join(',') != select_before)
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this.trigger_event('select');
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|
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this.focus();
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return true;
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},
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|
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|
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/**
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* Unselect selected row(s)
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*/
|
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clear_selection: function(id)
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{
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var num_select = this.selection.length;
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|
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// one row
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if (id)
|
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{
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for (var n=0; n<this.selection.length; n++)
|
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if (this.selection[n] == id)
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{
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this.selection.splice(n,1);
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break;
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}
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}
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// all rows
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else
|
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{
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for (var n=0; n<this.selection.length; n++)
|
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if (this.rows[this.selection[n]])
|
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{
|
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this.set_classname(this.rows[this.selection[n]].obj, 'selected', false);
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this.set_classname(this.rows[this.selection[n]].obj, 'unfocused', false);
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}
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|
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this.selection = new Array();
|
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}
|
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|
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if (num_select && !this.selection.length)
|
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this.trigger_event('select');
|
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},
|
|
|
|
|
|
/**
|
|
* Getter for the selection array
|
|
*/
|
|
get_selection: function()
|
|
{
|
|
return this.selection;
|
|
},
|
|
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
if (this.rows[id] && !multiple)
|
|
{
|
|
if (this.selection.length > 1 || !this.in_selection(id))
|
|
{
|
|
this.clear_selection();
|
|
this.selection[0] = id;
|
|
this.set_classname(this.rows[id].obj, 'selected', true);
|
|
}
|
|
}
|
|
else if (this.rows[id])
|
|
{
|
|
if (!this.in_selection(id)) // select row
|
|
{
|
|
this.selection[this.selection.length] = id;
|
|
this.set_classname(this.rows[id].obj, 'selected', true);
|
|
}
|
|
else // unselect row
|
|
{
|
|
var p = find_in_array(id, this.selection);
|
|
var a_pre = this.selection.slice(0, p);
|
|
var a_post = this.selection.slice(p+1, this.selection.length);
|
|
this.selection = a_pre.concat(a_post);
|
|
this.set_classname(this.rows[id].obj, 'selected', false);
|
|
this.set_classname(this.rows[id].obj, 'unfocused', false);
|
|
}
|
|
}
|
|
},
|
|
|
|
|
|
/**
|
|
* Handler for keyboard events
|
|
*/
|
|
key_press: function(e)
|
|
{
|
|
if (this.focused != true)
|
|
return true;
|
|
|
|
var keyCode = rcube_event.get_keycode(e);
|
|
var 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);
|
|
default:
|
|
this.shiftkey = e.shiftKey;
|
|
this.key_pressed = keyCode;
|
|
this.trigger_event('keypress');
|
|
|
|
if (this.key_pressed == this.BACKSPACE_KEY)
|
|
return rcube_event.cancel(e);
|
|
}
|
|
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Handler for keydown events
|
|
*/
|
|
key_down: function(e)
|
|
{
|
|
switch (rcube_event.get_keycode(e))
|
|
{
|
|
case 40:
|
|
case 38:
|
|
case 63233:
|
|
case 63232:
|
|
if (!rcube_event.get_modifier(e) && this.focused)
|
|
return rcube_event.cancel(e);
|
|
|
|
default:
|
|
}
|
|
|
|
return true;
|
|
},
|
|
|
|
|
|
/**
|
|
* Special handling method for arrow keys
|
|
*/
|
|
use_arrow_key: function(keyCode, mod_key)
|
|
{
|
|
var new_row;
|
|
// 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();
|
|
|
|
if (new_row)
|
|
{
|
|
this.select_row(new_row.uid, mod_key, true);
|
|
this.scrollto(new_row.uid);
|
|
}
|
|
|
|
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);
|
|
|
|
if (scroll_to < Number(this.frame.scrollTop))
|
|
this.frame.scrollTop = scroll_to;
|
|
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)
|
|
{
|
|
if (this.drag_start)
|
|
{
|
|
// check mouse movement, of less than 3 pixels, don't start dragging
|
|
var 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.draglayer)
|
|
this.draglayer = new rcube_layer('rcmdraglayer', {x:0, y:0, vis:0, zindex:2000});
|
|
|
|
// get subjects of selectedd messages
|
|
var names = '';
|
|
var c, i, node, subject, obj;
|
|
for(var n=0; n<this.selection.length; n++)
|
|
{
|
|
if (n>12) // only show 12 lines
|
|
{
|
|
names += '...';
|
|
break;
|
|
}
|
|
|
|
if (this.rows[this.selection[n]].obj)
|
|
{
|
|
obj = this.rows[this.selection[n]].obj;
|
|
subject = '';
|
|
|
|
for(c=0, i=0; i<obj.childNodes.length; i++)
|
|
{
|
|
if (obj.childNodes[i].nodeName == 'TD')
|
|
{
|
|
if (((node = obj.childNodes[i].firstChild) && (node.nodeType==3 || node.nodeName=='A')) &&
|
|
(this.subject_col < 0 || (this.subject_col >= 0 && this.subject_col == c)))
|
|
{
|
|
subject = node.nodeType==3 ? node.data : node.innerHTML;
|
|
names += (subject.length > 50 ? subject.substring(0, 50)+'...' : subject) + '<br />';
|
|
break;
|
|
}
|
|
c++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
this.draglayer.write(names);
|
|
this.draglayer.show(1);
|
|
|
|
this.drag_active = true;
|
|
this.trigger_event('dragstart');
|
|
}
|
|
|
|
if (this.drag_active && this.draglayer)
|
|
{
|
|
var pos = rcube_event.get_mouse_pos(e);
|
|
this.draglayer.move(pos.x+20, pos.y-5);
|
|
this.trigger_event('dragmove', e);
|
|
}
|
|
|
|
this.drag_start = false;
|
|
|
|
return false;
|
|
},
|
|
|
|
|
|
/**
|
|
* Handler for mouse up events
|
|
*/
|
|
drag_mouse_up: function(e)
|
|
{
|
|
document.onmousemove = null;
|
|
|
|
if (this.draglayer && this.draglayer.visible)
|
|
this.draglayer.show(0);
|
|
|
|
this.drag_active = false;
|
|
this.trigger_event('dragend');
|
|
|
|
rcube_event.remove_listener({element:document, event:'mousemove', object:this, method:'drag_mouse_move'});
|
|
rcube_event.remove_listener({element:document, event:'mouseup', object:this, method:'drag_mouse_up'});
|
|
|
|
var iframes = document.getElementsByTagName('IFRAME');
|
|
for (var n in iframes) {
|
|
var iframedoc;
|
|
|
|
if (iframes[n].contentDocument)
|
|
iframedoc = iframes[n].contentDocument;
|
|
else if (iframes[n].contentWindow)
|
|
iframedoc = iframes[n].contentWindow.document;
|
|
else if (iframes[n].document)
|
|
iframedoc = iframes[n].document;
|
|
|
|
if (iframedoc) {
|
|
if (this.iframe_events[n]) {
|
|
if (iframedoc.removeEventListener)
|
|
iframedoc.removeEventListener('mousemove', this.iframe_events[n], false);
|
|
else if (iframedoc.detachEvent)
|
|
iframedoc.detachEvent('onmousemove', this.iframe_events[n]);
|
|
else
|
|
iframedoc['onmousemove'] = null;
|
|
}
|
|
rcube_event.remove_listener({element:iframedoc, event:'mouseup', object:this, method:'drag_mouse_up'});
|
|
}
|
|
}
|
|
|
|
this.focus();
|
|
|
|
return rcube_event.cancel(e);
|
|
},
|
|
|
|
|
|
|
|
/**
|
|
* set/unset a specific class name
|
|
*/
|
|
set_classname: function(obj, classname, set)
|
|
{
|
|
var reg = new RegExp('\s*'+classname, 'i');
|
|
if (!set && obj.className.match(reg))
|
|
obj.className = obj.className.replace(reg, '');
|
|
else if (set && !obj.className.match(reg))
|
|
obj.className += ' '+classname;
|
|
},
|
|
|
|
|
|
/**
|
|
* Setter for object event handlers
|
|
*
|
|
* @param {String} Event name
|
|
* @param {Function} Handler function
|
|
* @return Listener ID (used to remove this handler later on)
|
|
*/
|
|
addEventListener: function(evt, handler)
|
|
{
|
|
if (this.events[evt]) {
|
|
var handle = this.events[evt].length;
|
|
this.events[evt][handle] = handler;
|
|
return handle;
|
|
}
|
|
else
|
|
return false;
|
|
},
|
|
|
|
|
|
/**
|
|
* Removes a specific event listener
|
|
*
|
|
* @param {String} Event name
|
|
* @param {Int} Listener ID to remove
|
|
*/
|
|
removeEventListener: function(evt, handle)
|
|
{
|
|
if (this.events[evt] && this.events[evt][handle])
|
|
this.events[evt][handle] = null;
|
|
},
|
|
|
|
|
|
/**
|
|
* This will execute all registered event handlers
|
|
* @private
|
|
*/
|
|
trigger_event: function(evt, p)
|
|
{
|
|
if (this.events[evt] && this.events[evt].length) {
|
|
for (var i=0; i<this.events[evt].length; i++)
|
|
if (typeof(this.events[evt][i]) == 'function')
|
|
this.events[evt][i](this, p);
|
|
}
|
|
}
|
|
|
|
|
|
};
|
|
|