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jquery.splitter.js
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jquery.splitter.js
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/*!
* JQuery Spliter Plugin
* Copyright (C) 2010-2013 Jakub Jankiewicz <http://jcubic.pl>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
(function($, undefined) {
var count = 0;
var splitter_id = null;
var splitters = [];
var current_splitter = null;
$.fn.split = function(options) {
var that=this;
var data = this.data('splitter');
if (data) {
return data;
}
var panel_1;
var panel_2;
var settings = $.extend({
limit: 100,
orientation: 'horizontal',
position: '50%',
invisible: false,
onDragStart: $.noop,
onDragEnd: $.noop,
onDrag: $.noop
}, options || {});
this.settings = settings;
var cls;
var children = this.children();
if (settings.orientation == 'vertical') {
panel_1 = children.first().addClass('left_panel');
panel_2 = panel_1.next().addClass('right_panel');
cls = 'vsplitter';
} else if (settings.orientation == 'horizontal') {
panel_1 = children.first().addClass('top_panel')
panel_2 = panel_1.next().addClass('bottom_panel');
cls = 'hsplitter';
}
if (settings.invisible) {
cls += ' splitter-invisible';
}
var width = this.width();
var height = this.height();
var id = count++;
this.addClass('splitter_panel');
var splitter = $('<div/>').addClass(cls).bind('mouseenter touchstart', function() {
splitter_id = id;
}).bind('mouseleave touchend', function() {
splitter_id = null;
}).insertAfter(panel_1);
var position;
function trResize(el, silent) {
if (!silent) el.find('.splitter_panel').trigger('splitter.resize');
that.trigger('split.resize');
}
function get_position(position) {
if (typeof position === 'number') {
return position;
} else if (typeof position === 'string') {
var match = position.match(/^([0-9\.]+)(px|%)$/);
if (match) {
if (match[2] == 'px') {
return +match[1];
} else {
if (settings.orientation == 'vertical') {
return (width * +match[1]) / 100;
} else if (settings.orientation == 'horizontal') {
return (height * +match[1]) / 100;
}
}
} else {
//throw position + ' is invalid value';
}
} else {
//throw 'position have invalid type';
}
}
var self = $.extend(this, {
refresh: function() {
var new_width = this.width();
var new_height = this.height();
if (width != new_width || height != new_height) {
width = this.width();
height = this.height();
self.position(position);
}
},
position: (function() {
if (settings.orientation == 'vertical') {
return function(n, silent) {
if (n === undefined) {
return position;
} else {
position = get_position(n);
var sw = splitter.width();
var sw2 = sw/2;
if (settings.invisible) {
var pw = panel_1.width(position).outerWidth();
panel_2.width(self.width()-pw);
splitter.css('left', pw-sw2);
} else {
var pw = panel_1.width(position-sw2).outerWidth();
panel_2.width(self.width()-pw-sw);
splitter.css('left', pw);
}
}
trResize(self, silent);
return self;
};
} else if (settings.orientation == 'horizontal') {
return function(n, silent) {
if (n === undefined) {
return position;
} else {
position = get_position(n);
var sw = splitter.height();
var sw2 = sw/2;
if (settings.invisible) {
var pw = panel_1.height(position).outerHeight();
panel_2.height(self.height()-pw);
splitter.css('top', pw-sw2);
} else {
var pw = panel_1.height(position-sw2).outerHeight();
panel_2.height(self.height()-pw-sw);
splitter.css('top', pw);
}
}
trResize(self, silent);
return self;
};
} else {
return $.noop;
}
})(),
orientation: settings.orientation,
limit: settings.limit,
isActive: function() {
return splitter_id === id;
},
destroy: function() {
self.removeClass('splitter_panel');
splitter.unbind('mouseenter');
splitter.unbind('mouseleave');
splitter.unbind('touchstart');
splitter.unbind('touchmove');
splitter.unbind('touchend');
splitter.unbind('touchleave');
splitter.unbind('touchcancel');
if (settings.orientation == 'vertical') {
panel_1.removeClass('left_panel');
panel_2.removeClass('right_panel');
} else if (settings.orientation == 'horizontal') {
panel_1.removeClass('top_panel');
panel_2.removeClass('bottom_panel');
}
self.unbind('splitter.resize');
trResize(self);
splitters[id] = null;
splitter.remove();
var not_null = false;
for (var i=splitters.length; i--;) {
if (splitters[i] !== null) {
not_null = true;
break;
}
}
//remove document events when no splitters
if (!not_null) {
$(document.documentElement).unbind('.splitter');
$(window).unbind('resize.splitter');
self.data('splitter', null);
splitters = [];
count = 0;
}
}
});
self.bind('splitter.resize', function(e) {
var pos = self.position();
if (self.orientation == 'vertical' &&
pos > self.width()) {
pos = self.width() - self.limit-1;
} else if (self.orientation == 'horizontal' &&
pos > self.height()) {
pos = self.height() - self.limit-1;
}
if (pos < self.limit) {
pos = self.limit + 1;
}
self.position(pos, true);
});
//inital position of splitter
var pos;
if (settings.orientation == 'vertical') {
if (pos > width-settings.limit) {
pos = width-settings.limit;
} else {
pos = get_position(settings.position);
}
} else if (settings.orientation == 'horizontal') {
//position = height/2;
if (pos > height-settings.limit) {
pos = height-settings.limit;
} else {
pos = get_position(settings.position);
}
}
if (pos < settings.limit) {
pos = settings.limit;
}
self.position(pos, true);
if (splitters.length == 0) { // first time bind events to document
$(window).bind('resize.splitter', function() {
$.each(splitters, function(i, splitter) {
splitter.refresh();
});
});
$(document.documentElement).bind('mousedown.splitter touchstart.splitter', function(e) {
if (splitter_id !== null) {
current_splitter = splitters[splitter_id];
$('<div class="splitterMask"></div>').css('cursor', current_splitter.children().eq(1).css('cursor')).insertAfter(current_splitter);
current_splitter.settings.onDragStart(e);
return false;
}
}).bind('mouseup.splitter touchend.splitter touchleave.splitter touchcancel.splitter', function(e) {
if (current_splitter) {
$('.splitterMask').remove();
current_splitter.settings.onDragEnd(e);
current_splitter = null;
}
}).bind('mousemove.splitter touchmove.splitter', function(e) {
if (current_splitter !== null) {
var limit = current_splitter.limit;
var offset = current_splitter.offset();
if (current_splitter.orientation == 'vertical') {
var pageX = e.pageX;
if(e.originalEvent && e.originalEvent.changedTouches){
pageX = e.originalEvent.changedTouches[0].pageX;
}
var x = pageX - offset.left;
if (x <= current_splitter.limit) {
x = current_splitter.limit + 1;
} else if (x >= current_splitter.width() - limit) {
x = current_splitter.width() - limit - 1;
}
if (x > current_splitter.limit &&
x < current_splitter.width()-limit) {
current_splitter.position(x, true);
trResize(current_splitter);
e.preventDefault();
}
} else if (current_splitter.orientation == 'horizontal') {
var pageY = e.pageY;
if(e.originalEvent && e.originalEvent.changedTouches){
pageY = e.originalEvent.changedTouches[0].pageY;
}
var y = pageY-offset.top;
if (y <= current_splitter.limit) {
y = current_splitter.limit + 1;
} else if (y >= current_splitter.height() - limit) {
y = current_splitter.height() - limit - 1;
}
if (y > current_splitter.limit &&
y < current_splitter.height()-limit) {
current_splitter.position(y, true);
trResize(current_splitter);
e.preventDefault();
}
}
current_splitter.settings.onDrag(e);
}
});
}
splitters.push(self);
self.data('splitter', self);
return self;
};
})(jQuery);