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diff --git a/program/js/list.js b/program/js/list.js
index eceb1a9ec..38c74336c 100644
--- a/program/js/list.js
+++ b/program/js/list.js
@@ -1,757 +1,760 @@
/*
+-----------------------------------------------------------------------+
| RoundCube List Widget |
| |
| This file is part of the RoundCube Webmail client |
| Copyright (C) 2006-2008, RoundCube Dev, - Switzerland |
| Licensed under the GNU GPL |
| |
+-----------------------------------------------------------------------+
| Authors: Thomas Bruederli <roundcube@gmail.com> |
| Charles McNulty <charles@charlesmcnulty.com> |
+-----------------------------------------------------------------------+
| Requires: common.js |
+-----------------------------------------------------------------------+
$Id: list.js 344 2006-09-18 03:49:28Z thomasb $
*/
/**
* RoundCube List Widget class
* @contructor
*/
function rcube_list_widget(list, p)
{
// static contants
this.ENTER_KEY = 13;
this.DELETE_KEY = 46;
this.list = list ? list : null;
this.frame = null;
this.rows = [];
this.selection = [];
this.subject_col = -1;
this.shiftkey = false;
this.multiselect = false;
this.multi_selecting = false;
this.draggable = false;
this.keyboard = false;
this.toggleselect = false;
this.dont_select = false;
this.drag_active = false;
this.last_selected = 0;
this.shift_start = 0;
this.in_selection_before = false;
this.focused = false;
this.drag_mouse_start = null;
this.dblclick_time = 600;
this.row_init = function(){};
this.events = { click:[], dblclick:[], select:[], keypress:[], dragstart:[], dragend:[] };
// overwrite default paramaters
if (p && typeof(p)=='object')
for (var n in p)
this[n] = p[n];
}
rcube_list_widget.prototype = {
/**
* get all message rows from HTML table and init each row
*/
init: function()
{
if (this.list && this.list.tBodies[0])
{
this.rows = new Array();
var row;
for(var r=0; r<this.list.tBodies[0].childNodes.length; r++)
{
row = this.list.tBodies[0].childNodes[r];
while (row && (row.nodeType != 1 || row.style.display == 'none'))
{
row = row.nextSibling;
r++;
}
this.init_row(row);
}
this.frame = this.list.parentNode;
// set body events
if (this.keyboard)
rcube_event.add_listener({element:document, event:'keydown', object:this, method:'key_press'});
}
},
/**
*
*/
init_row: function(row)
{
// make references in internal array and set event handlers
if (row && String(row.id).match(/rcmrow([a-z0-9\-_=]+)/i))
{
var p = this;
var uid = RegExp.$1;
row.uid = uid;
this.rows[uid] = {uid:uid, id:row.id, obj:row, classname:row.className};
// set eventhandlers to table row
row.onmousedown = function(e){ return p.drag_row(e, this.uid); };
row.onmouseup = function(e){ return p.click_row(e, this.uid); };
if (document.all)
row.onselectstart = function() { return false; };
this.row_init(this.rows[uid]);
}
},
/**
*
*/
clear: function(sel)
{
var tbody = document.createElement('TBODY');
this.list.insertBefore(tbody, this.list.tBodies[0]);
this.list.removeChild(this.list.tBodies[1]);
this.rows = new Array();
if (sel) this.clear_selection();
},
/**
* 'remove' message row from list (just hide it)
*/
remove_row: function(uid, sel_next)
{
if (this.rows[uid].obj)
this.rows[uid].obj.style.display = 'none';
if (sel_next)
this.select_next();
this.rows[uid] = null;
},
/**
*
*/
insert_row: function(row, attop)
{
var tbody = this.list.tBodies[0];
if (attop && tbody.rows.length)
tbody.insertBefore(row, tbody.firstChild);
else
tbody.appendChild(row);
this.init_row(row);
},
/**
* Set focur to the list
*/
focus: function(e)
{
this.focused = true;
for (var n=0; n<this.selection.length; n++)
{
id = this.selection[n];
if (this.rows[id] && this.rows[id].obj)
{
this.set_classname(this.rows[id].obj, 'selected', true);
this.set_classname(this.rows[id].obj, 'unfocused', false);
}
}
if (e || (e = window.event))
rcube_event.cancel(e);
},
/**
* remove focus from the list
*/
blur: function()
{
var id;
this.focused = false;
for (var n=0; n<this.selection.length; n++)
{
id = this.selection[n];
if (this.rows[id] && this.rows[id].obj)
{
this.set_classname(this.rows[id].obj, 'selected', false);
this.set_classname(this.rows[id].obj, 'unfocused', true);
}
}
},
/**
* onmousedown-handler of message list row
*/
drag_row: function(e, id)
{
// don't do anything (another action processed before)
var evtarget = rcube_event.get_target(e);
if (this.dont_select || (evtarget && (evtarget.tagName == 'INPUT' || evtarget.tagName == 'IMG')))
return false;
this.in_selection_before = 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, false);
}
if (this.draggable && this.selection.length)
{
this.drag_start = true;
this.drag_mouse_start = rcube_event.get_mouse_pos(e);
rcube_event.add_listener({element:document, event:'mousemove', object:this, method:'drag_mouse_move'});
rcube_event.add_listener({element:document, event:'mouseup', object:this, method:'drag_mouse_up'});
}
return false;
},
/**
* onmouseup-handler of message list row
*/
click_row: function(e, id)
{
var now = new Date().getTime();
var mod_key = rcube_event.get_modifier(e);
var evtarget = rcube_event.get_target(e);
if ((evtarget && (evtarget.tagName == 'INPUT' || evtarget.tagName == 'IMG')))
return false;
// don't do anything (another action processed before)
if (this.dont_select)
{
this.dont_select = false;
return false;
}
var dblclicked = now - this.rows[id].clicked < this.dblclick_time;
// unselects currently selected row
if (!this.drag_active && this.in_selection_before == id && !dblclicked)
this.select_row(id, mod_key, false);
this.drag_start = false;
this.in_selection_before = false;
// row was double clicked
if (this.rows && dblclicked && this.in_selection(id))
this.trigger_event('dblclick');
else
this.trigger_event('click');
if (!this.drag_active)
rcube_event.cancel(e);
this.rows[id].clicked = now;
return false;
},
/**
* get next and previous rows that are not hidden
*/
get_next_row: function()
{
if (!this.rows)
return false;
var last_selected_row = this.rows[this.last_selected];
var 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.rows)
return false;
var last_selected_row = this.rows[this.last_selected];
var 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;
},
// 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(',');
if (!this.multiselect)
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.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;
}
// trigger event if selection changed
if (this.selection.join(',') != select_before)
this.trigger_event('select');
if (this.last_selected != 0 && this.rows[this.last_selected])
this.set_classname(this.rows[this.last_selected].obj, 'focused', false);
// unselect if toggleselect is active and the same row was clicked again
if (this.toggleselect && this.last_selected == id)
{
this.clear_selection();
id = null;
}
else
this.set_classname(this.rows[id].obj, 'focused', true);
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();
var prev_row = this.get_prev_row();
var new_row = (next_row) ? next_row : prev_row;
if (new_row)
this.select_row(new_row.uid, false, false);
},
/**
* Perform selection when shift key is pressed
*/
shift_select: function(id, control)
{
+ if (!this.rows[this.shift_start])
+ this.shift_start = id;
+
var from_rowIndex = this.rows[this.shift_start].obj.rowIndex;
var to_rowIndex = this.rows[id].obj.rowIndex;
var i = ((from_rowIndex < to_rowIndex)? from_rowIndex : to_rowIndex);
var j = ((from_rowIndex > to_rowIndex)? from_rowIndex : to_rowIndex);
// iterate through the entire message list
for (var n in this.rows)
{
if ((this.rows[n].obj.rowIndex >= i) && (this.rows[n].obj.rowIndex <= j))
{
if (!this.in_selection(n))
this.highlight_row(n, true);
}
else
{
if (this.in_selection(n) && !control)
this.highlight_row(n, true);
}
}
},
/**
* 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.rows || !this.rows.length)
return false;
// reset but remember selection first
var select_before = this.selection.join(',');
this.clear_selection();
for (var n in this.rows)
{
if (!filter || this.rows[n][filter]==true)
{
this.last_selected = n;
this.highlight_row(n, true);
}
}
// trigger event if selection changed
if (this.selection.join(',') != select_before)
this.trigger_event('select');
this.focus();
return true;
},
/**
* Unselect all selected rows
*/
clear_selection: function()
{
var num_select = this.selection.length;
for (var n=0; n<this.selection.length; n++)
if (this.rows[this.selection[n]])
{
this.set_classname(this.rows[this.selection[n]].obj, 'selected', false);
this.set_classname(this.rows[this.selection[n]].obj, 'unfocused', false);
}
this.selection = new Array();
if (num_select)
this.trigger_event('select');
},
/**
* 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 = document.layers ? e.which : document.all ? event.keyCode : document.getElementById ? e.keyCode : 0;
var mod_key = rcube_event.get_modifier(e);
switch (keyCode)
{
case 40:
case 38:
return this.use_arrow_key(keyCode, mod_key);
break;
default:
this.shiftkey = e.shiftKey;
this.key_pressed = keyCode;
this.trigger_event('keypress');
}
return true;
},
/**
* Special handling method for arrow keys
*/
use_arrow_key: function(keyCode, mod_key)
{
var new_row;
if (keyCode == 40) // down arrow key pressed
new_row = this.get_next_row();
else if (keyCode == 38) // 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, width:300, 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.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'});
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)
{
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);
}
}
};

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