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/**
* RoundCube splitter GUI class
*
* @constructor
*/
function rcube_splitter(attrib)
{
this.p1id = attrib.p1;
this.p2id = attrib.p2;
this.id = attrib.id ? attrib.id : this.p1id + '_' + this.p2id + '_splitter';
this.orientation = attrib.orientation;
this.horizontal = (this.orientation == 'horizontal' || this.orientation == 'h');
this.offset_1 = bw.ie ? 0 : -1;
this.offset_2 = bw.ie ? -2 : 1;
this.pos = 0;
this.init = function()
{
this.p1 = document.getElementById(this.p1id);
this.p2 = document.getElementById(this.p2id);
// create and position the handle for this splitter
this.p1pos = rcube_get_object_pos(this.p1);
this.p2pos = rcube_get_object_pos(this.p2);
var top = this.p1pos.y + this.p1.offsetHeight;
var height = this.p2pos.y - this.p1pos.y - this.p1.offsetHeight;
var left = this.p1pos.x + this.p1.offsetWidth;
var width = this.p2pos.x - this.p1pos.x - this.p1.offsetWidth;
if (this.horizontal)
this.layer = new rcube_layer(this.id, {x: this.p1pos.x, y: top, height: height, width: this.p1.offsetWidth, vis: 1});
else
this.layer = new rcube_layer(this.id, {x: left, y: this.p1pos.y, width: width, height: this.p1.offsetHeight, vis: 1});
this.elm = this.layer.elm;
this.elm.className = 'splitter '+(this.horizontal ? 'splitter-h' : 'splitter-v');
// add the mouse event listeners
rcube_event.add_listener({element: this.elm, event:'mousedown', object:this, method:'onDragStart'});
rcube_event.add_listener({element: window, event:'resize', object:this, method:'onResize'});
// read saved position form cookie
var cookie = bw.get_cookie(this.id);
if (cookie)
{
var param = cookie.split(':');
for (var i=0, p; i<param.length; i++)
{
p = param[i].split('=');
this[p[0]] = !isNaN(p[1]) ? parseFloat(p[1]) : p[1];
}
this.resize();
}
};
/**
* Set size and position of all DOM objects
* according to the saved splitter position
*/
this.resize = function()
{
if (this.horizontal)
{
this.p1.style.height = Math.floor(this.pos - this.p1pos.y - this.layer.height / 2 + this.offset_1) + 'px';
this.p2.style.top = Math.ceil(this.pos + (this.layer.height / 2 + this.offset_2)) + 'px';
this.layer.move(this.layer.x, Math.round(this.pos - this.layer.height / 2 + 1));
}
else
{
this.p1.style.width = Math.floor(this.pos - this.p1pos.x - this.layer.width / 2 + this.offset_1) + 'px';
this.p2.style.left = Math.ceil(this.pos + this.layer.width / 2 + this.offset_2) + 'px';
this.layer.move(Math.round(this.pos - this.layer.width / 2 + 1), this.layer.y);
}
};
/**
* Handler for mousedown events
*/
this.onDragStart = function(e)
{
this.p1pos = rcube_get_object_pos(this.p1);
this.p2pos = rcube_get_object_pos(this.p2);
// start listening to mousemove events
rcube_event.add_listener({element:document, event:'mousemove', object:this, method:'onDrag'});
rcube_event.add_listener({element:document, event:'mouseup', object:this, method:'onDragStop'});
// need to listen in any iframe documents too, b/c otherwise the splitter stops moving when we move over an iframe
var iframes = document.getElementsByTagName('IFRAME');
this.iframe_events = Object();
for (var n in iframes)
{
var iframedoc = null;
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)
{
// I don't use the add_listener function for this one because I need to create closures to fetch
// the position of each iframe when the event is received
var s = this;
var id = iframes[n].id;
this.iframe_events[n] = function(e){ e._rc_pos_offset = rcube_get_object_pos(document.getElementById(id)); return s.onDrag(e); }
if (iframedoc.addEventListener)
iframedoc.addEventListener('mousemove', this.iframe_events[n], false);
else if (iframes[n].attachEvent)
iframedoc.attachEvent('onmousemove', this.iframe_events[n]);
else
iframedoc['onmousemove'] = this.iframe_events[n];
rcube_event.add_listener({element:iframedoc, event:'mouseup', object:this, method:'onDragStop'});
}
}
}
/**
* Handler for mousemove events
*/
this.onDrag = function(e)
{
var pos = rcube_event.get_mouse_pos(e);
if (e._rc_pos_offset)
{
pos.x += e._rc_pos_offset.x;
pos.y += e._rc_pos_offset.y;
}
if (this.horizontal)
{
if (((pos.y - this.layer.height * 1.5) > this.p1pos.y) && ((pos.y + this.layer.height * 1.5) < (this.p2pos.y + this.p2.offsetHeight)))
{
this.pos = pos.y;
this.resize();
}
}
else
{
if (((pos.x - this.layer.width * 1.5) > this.p1pos.x) && ((pos.x + this.layer.width * 1.5) < (this.p2pos.x + this.p2.offsetWidth)))
{
this.pos = pos.x;
this.resize();
}
}
this.p1pos = rcube_get_object_pos(this.p1);
this.p2pos = rcube_get_object_pos(this.p2);
return false;
};
/**
* Handler for mouseup events
*/
this.onDragStop = function(e)
{
// cancel the listening for drag events
rcube_event.remove_listener({element:document, event:'mousemove', object:this, method:'onDrag'});
rcube_event.remove_listener({element:document, event:'mouseup', object:this, method:'onDragStop'});
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:'onDragStop'});
}
}
// save state in cookie
var exp = new Date();
exp.setYear(exp.getFullYear() + 1);
bw.set_cookie(this.id, 'pos='+this.pos, exp);
return bw.safari ? true : rcube_event.cancel(e);
};
/**
* Handler for window resize events
*/
this.onResize = function(e)
{
this.p1pos = rcube_get_object_pos(this.p1);
this.p2pos = rcube_get_object_pos(this.p2);
var height = this.horizontal ? this.p2pos.y - this.p1pos.y - this.p1.offsetHeight : this.p1.offsetHeight;
var width = this.horizontal ? this.p1.offsetWidth : this.p2pos.x - this.p1pos.x - this.p1.offsetWidth;
this.layer.resize(width, height);
};
} // end class rcube_splitter
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