/**
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* portal - jQuery EasyUI
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*
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* Licensed under the GPL:
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* http://www.gnu.org/licenses/gpl.txt
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*
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* Copyright 2010-2012 www.jeasyui.com
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*
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* Dependencies:
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* draggable
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* panel
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*
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*/
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(function($){
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/**
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* initialize the portal
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*/
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function init(target){
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$(target).addClass('portal');
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var table = $('<table border="0" cellspacing="0" cellpadding="0"><tr></tr></table>').appendTo(target);
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var tr = table.find('tr');
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var columnWidths = [];
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var totalWidth = 0;
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$(target).children('div:first').addClass('portal-column-left');
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$(target).children('div:last').addClass('portal-column-right');
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$(target).find('>div').each(function(){ // each column panel
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var column = $(this);
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totalWidth += column.outerWidth();
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columnWidths.push(column.outerWidth());
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var td = $('<td class="portal-column-td"></td>').appendTo(tr)
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column.addClass('portal-column').appendTo(td);
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column.find('>div').each(function(){ // each portal panel
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var p = $(this).addClass('portal-p').panel({
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doSize:false,
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cls:'portal-panel'
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});
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makeDraggable(target, p);
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});
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});
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for(var i=0; i<columnWidths.length; i++){
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columnWidths[i] /= totalWidth;
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}
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$(target).bind('_resize', function(){
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var opts = $.data(target, 'portal').options;
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if (opts.fit == true){
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setSize(target);
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}
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return false;
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});
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return columnWidths;
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}
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function initCss(){
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if (!$('#easyui-portal-style').length){
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$('head').append(
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'<style id="easyui-portal-style">' +
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'.portal{padding:0;margin:0;overflow:auto;border:1px solid #99bbe8;}' +
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'.portal-noborder{border:0;}' +
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'.portal .portal-panel{margin-bottom:10px;}' +
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'.portal-column-td{vertical-align:top;}' +
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'.portal-column{padding:10px 0 10px 10px;overflow:hidden;}' +
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'.portal-column-left{padding-left:10px;}' +
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'.portal-column-right{padding-right:10px;}' +
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'.portal-proxy{opacity:0.6;filter:alpha(opacity=60);}' +
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'.portal-spacer{border:3px dashed #eee;margin-bottom:10px;}' +
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'</style>'
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);
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}
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}
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function setSize(target){
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var t = $(target);
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var opts = $.data(target, 'portal').options;
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if (opts.fit){
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var p = t.parent();
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opts.width = p.width();
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opts.height = p.height();
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}
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if (!isNaN(opts.width)){
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t._outerWidth(opts.width);
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} else {
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t.width('auto');
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}
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if (!isNaN(opts.height)){
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t._outerHeight(opts.height);
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} else {
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t.height('auto');
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}
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var hasScroll = t.find('>table').outerHeight() > t.height();
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var width = t.width();
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var columnWidths = $.data(target, 'portal').columnWidths;
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var leftWidth = 0;
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// calculate and set every column size
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for(var i=0; i<columnWidths.length; i++){
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var p = t.find('div.portal-column:eq('+i+')');
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var w = Math.floor(width * columnWidths[i]);
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if (i == columnWidths.length - 1){
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// w = width - leftWidth - (hasScroll == true ? 28 : 10);
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w = width - leftWidth - (hasScroll == true ? 18 : 0);
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}
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p._outerWidth(w);
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leftWidth += p.outerWidth();
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// resize every panel of the column
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p.find('div.portal-p').panel('resize', {width:p.width()});
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}
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opts.onResize.call(target, opts.width, opts.height);
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}
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/**
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* set draggable feature for the specified panel
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*/
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function makeDraggable(target, panel){
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var spacer;
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panel.panel('panel').draggable({
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handle:'>div.panel-header>div.panel-title',
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proxy:function(source){
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var p = $('<div class="portal-proxy">proxy</div>').insertAfter(source);
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p.width($(source).width());
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p.height($(source).height());
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p.html($(source).html());
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p.find('div.portal-p').removeClass('portal-p');
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return p;
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},
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onBeforeDrag:function(e){
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e.data.startTop = $(this).position().top + $(target).scrollTop();
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},
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onStartDrag:function(e){
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$(this).hide();
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spacer = $('<div class="portal-spacer"></div>').insertAfter(this);
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setSpacerSize($(this).outerWidth(), $(this).outerHeight());
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},
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onDrag:function(e){
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var p = findPanel(e, this);
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if (p){
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if (p.pos == 'up'){
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spacer.insertBefore(p.target);
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} else {
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spacer.insertAfter(p.target);
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}
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setSpacerSize($(p.target).outerWidth());
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} else {
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var c = findColumn(e);
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if (c){
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if (c.find('div.portal-spacer').length == 0){
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spacer.appendTo(c);
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setSize(target);
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setSpacerSize(c.width());
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}
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}
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}
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},
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onStopDrag:function(e){
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$(this).css('position', 'static');
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$(this).show();
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spacer.hide();
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$(this).insertAfter(spacer);
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spacer.remove();
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setSize(target);
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panel.panel('move');
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var opts = $.data(target, 'portal').options;
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opts.onStateChange.call(target, panel);
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}
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});
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/**
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* find which panel the cursor is over
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*/
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function findPanel(e, source){
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var result = null;
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$(target).find('div.portal-p').each(function(){
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var pal = $(this).panel('panel');
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if (pal[0] != source){
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var pos = pal.offset();
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if (e.pageX > pos.left && e.pageX < pos.left + pal.outerWidth()
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&& e.pageY > pos.top && e.pageY < pos.top + pal.outerHeight()){
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if (e.pageY > pos.top + pal.outerHeight() / 2){
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result = {
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target:pal,
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pos:'down'
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};
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} else {
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result = {
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target:pal,
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pos:'up'
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}
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}
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}
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}
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});
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return result;
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}
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/**
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* find which portal column the cursor is over
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*/
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function findColumn(e){
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var result = null;
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$(target).find('div.portal-column').each(function(){
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var pal = $(this);
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var pos = pal.offset();
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if (e.pageX > pos.left && e.pageX < pos.left + pal.outerWidth()){
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result = pal;
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}
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});
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return result;
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}
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/**
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* set the spacer size
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*/
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function setSpacerSize(width, height){
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spacer._outerWidth(width);
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if (height){
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spacer._outerHeight(height);
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}
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}
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}
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$.fn.portal = function(options, param){
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if (typeof options == 'string'){
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return $.fn.portal.methods[options](this, param);
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}
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options = options || {};
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return this.each(function(){
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var state = $.data(this, 'portal');
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if (state){
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$.extend(state.options, options);
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} else {
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state = $.data(this, 'portal', {
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options: $.extend({}, $.fn.portal.defaults, $.fn.portal.parseOptions(this), options),
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columnWidths: init(this)
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});
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}
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if (state.options.border){
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$(this).removeClass('portal-noborder');
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} else {
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$(this).addClass('portal-noborder');
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}
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initCss();
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setSize(this);
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});
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};
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$.fn.portal.methods = {
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options: function(jq){
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return $.data(jq[0], 'portal').options;
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},
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resize: function(jq, param){
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return jq.each(function(){
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if (param){
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var opts = $.data(this, 'portal').options;
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if (param.width) opts.width = param.width;
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if (param.height) opts.height = param.height;
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}
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setSize(this);
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});
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},
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getPanels: function(jq, columnIndex){
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var c = jq; // the panel container
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if (columnIndex >= 0){
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c = jq.find('div.portal-column:eq(' + columnIndex + ')');
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}
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var panels = [];
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c.find('div.portal-p').each(function(){
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panels.push($(this));
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});
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return panels;
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},
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add: function(jq, param){ // param: {panel,columnIndex}
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return jq.each(function(){
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var c = $(this).find('div.portal-column:eq(' + param.columnIndex + ')');
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var p = param.panel.addClass('portal-p');
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p.panel('panel').addClass('portal-panel').appendTo(c);
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makeDraggable(this, p);
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p.panel('resize', {width:c.width()});
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});
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},
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remove: function(jq, panel){
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return jq.each(function(){
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var panels = $(this).portal('getPanels');
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for(var i=0; i<panels.length; i++){
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var p = panels[i];
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if (p[0] == $(panel)[0]){
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p.panel('destroy');
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}
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}
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});
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},
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disableDragging: function(jq, panel){
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panel.panel('panel').draggable('disable');
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return jq;
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},
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enableDragging: function(jq, panel){
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panel.panel('panel').draggable('enable');
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return jq;
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}
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};
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$.fn.portal.parseOptions = function(target){
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var t = $(target);
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return {
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width: (parseInt(target.style.width) || undefined),
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height: (parseInt(target.style.height) || undefined),
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border: (t.attr('border') ? t.attr('border') == 'true' : undefined),
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fit: (t.attr('fit') ? t.attr('fit') == 'true' : undefined)
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};
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};
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$.fn.portal.defaults = {
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width:'auto',
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height:'auto',
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border:true,
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fit:false,
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onResize:function(width,height){},
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onStateChange:function(panel){}
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};
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})(jQuery);
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