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$.extend($.fn.datagrid.defaults, {
groupHeight: 28,
expanderWidth: 30,
groupStyler: function(value,rows){return ''}
});
var groupview = $.extend({}, $.fn.datagrid.defaults.view, {
render: function(target, container, frozen){
var table = [];
var groups = this.groups;
for(var i=0; i<groups.length; i++){
table.push(this.renderGroup.call(this, target, i, groups[i], frozen));
}
$(container).html(table.join(''));
},
renderGroup: function(target, groupIndex, group, frozen){
var state = $.data(target, 'datagrid');
var opts = state.options;
var fields = $(target).datagrid('getColumnFields', frozen);
var hasFrozen = opts.frozenColumns && opts.frozenColumns.length;
if (frozen){
if (!(opts.rownumbers || hasFrozen)){
return '';
}
}
var table = [];
var css = opts.groupStyler.call(target, group.value, group.rows);
var cs = parseCss(css, 'datagrid-group');
table.push('<div group-index=' + groupIndex + ' ' + cs + '>');
if ((frozen && (opts.rownumbers || opts.frozenColumns.length)) ||
(!frozen && !(opts.rownumbers || opts.frozenColumns.length))){
table.push('<span class="datagrid-group-expander">');
table.push('<span class="datagrid-row-expander datagrid-row-collapse">&nbsp;</span>');
table.push('</span>');
}
if ((frozen && hasFrozen) || (!frozen)){
table.push('<span class="datagrid-group-title">');
table.push(opts.groupFormatter.call(target, group.value, group.rows));
table.push('</span>');
}
table.push('</div>');
table.push('<table class="datagrid-btable" cellspacing="0" cellpadding="0" border="0"><tbody>');
var index = group.startIndex;
for(var j=0; j<group.rows.length; j++) {
var css = opts.rowStyler ? opts.rowStyler.call(target, index, group.rows[j]) : '';
var classValue = '';
var styleValue = '';
if (typeof css == 'string'){
styleValue = css;
} else if (css){
classValue = css['class'] || '';
styleValue = css['style'] || '';
}
var cls = 'class="datagrid-row ' + (index % 2 && opts.striped ? 'datagrid-row-alt ' : ' ') + classValue + '"';
var style = styleValue ? 'style="' + styleValue + '"' : '';
var rowId = state.rowIdPrefix + '-' + (frozen?1:2) + '-' + index;
table.push('<tr id="' + rowId + '" datagrid-row-index="' + index + '" ' + cls + ' ' + style + '>');
table.push(this.renderRow.call(this, target, fields, frozen, index, group.rows[j]));
table.push('</tr>');
index++;
}
table.push('</tbody></table>');
return table.join('');
function parseCss(css, cls){
var classValue = '';
var styleValue = '';
if (typeof css == 'string'){
styleValue = css;
} else if (css){
classValue = css['class'] || '';
styleValue = css['style'] || '';
}
return 'class="' + cls + (classValue ? ' '+classValue : '') + '" ' +
'style="' + styleValue + '"';
}
},
bindEvents: function(target){
var state = $.data(target, 'datagrid');
var dc = state.dc;
var body = dc.body1.add(dc.body2);
var clickHandler = ($.data(body[0],'events')||$._data(body[0],'events')).click[0].handler;
body.unbind('click').bind('click', function(e){
var tt = $(e.target);
var expander = tt.closest('span.datagrid-row-expander');
if (expander.length){
var gindex = expander.closest('div.datagrid-group').attr('group-index');
if (expander.hasClass('datagrid-row-collapse')){
$(target).datagrid('collapseGroup', gindex);
} else {
$(target).datagrid('expandGroup', gindex);
}
} else {
clickHandler(e);
}
e.stopPropagation();
});
},
onBeforeRender: function(target, rows){
var state = $.data(target, 'datagrid');
var opts = state.options;
initCss();
var groups = [];
for(var i=0; i<rows.length; i++){
var row = rows[i];
var group = getGroup(row[opts.groupField]);
if (!group){
group = {
value: row[opts.groupField],
rows: [row]
};
groups.push(group);
} else {
group.rows.push(row);
}
}
var index = 0;
var newRows = [];
for(var i=0; i<groups.length; i++){
var group = groups[i];
group.startIndex = index;
index += group.rows.length;
newRows = newRows.concat(group.rows);
}
state.data.rows = newRows;
this.groups = groups;
var that = this;
setTimeout(function(){
that.bindEvents(target);
},0);
function getGroup(value){
for(var i=0; i<groups.length; i++){
var group = groups[i];
if (group.value == value){
return group;
}
}
return null;
}
function initCss(){
if (!$('#datagrid-group-style').length){
$('head').append(
'<style id="datagrid-group-style">' +
'.datagrid-group{height:'+opts.groupHeight+'px;overflow:hidden;font-weight:bold;border-bottom:1px solid #ccc;white-space:nowrap;word-break:normal;}' +
'.datagrid-group-title,.datagrid-group-expander{display:inline-block;vertical-align:bottom;height:100%;line-height:'+opts.groupHeight+'px;padding:0 4px;}' +
'.datagrid-group-title{position:relative;}' +
'.datagrid-group-expander{width:'+opts.expanderWidth+'px;text-align:center;padding:0}' +
'.datagrid-row-expander{margin:'+Math.floor((opts.groupHeight-16)/2)+'px 0;display:inline-block;width:16px;height:16px;cursor:pointer}' +
'</style>'
);
}
}
},
onAfterRender: function(target){
$.fn.datagrid.defaults.view.onAfterRender.call(this, target);
var view = this;
var state = $.data(target, 'datagrid');
var opts = state.options;
if (!state.onResizeColumn){
state.onResizeColumn = opts.onResizeColumn;
}
if (!state.onResize){
state.onResize = opts.onResize;
}
opts.onResizeColumn = function(field, width){
view.resizeGroup(target);
state.onResizeColumn.call(target, field, width);
}
opts.onResize = function(width, height){
view.resizeGroup(target);
state.onResize.call($(target).datagrid('getPanel')[0], width, height);
}
view.resizeGroup(target);
}
});
$.extend($.fn.datagrid.methods, {
groups:function(jq){
return jq.datagrid('options').view.groups;
},
expandGroup:function(jq, groupIndex){
return jq.each(function(){
var opts = $(this).datagrid('options');
var view = $.data(this, 'datagrid').dc.view;
var group = view.find(groupIndex!=undefined ? 'div.datagrid-group[group-index="'+groupIndex+'"]' : 'div.datagrid-group');
var expander = group.find('span.datagrid-row-expander');
if (expander.hasClass('datagrid-row-expand')){
expander.removeClass('datagrid-row-expand').addClass('datagrid-row-collapse');
group.next('table').show();
}
$(this).datagrid('fixRowHeight');
if (opts.onExpandGroup){
opts.onExpandGroup.call(this, groupIndex);
}
});
},
collapseGroup:function(jq, groupIndex){
return jq.each(function(){
var opts = $(this).datagrid('options');
var view = $.data(this, 'datagrid').dc.view;
var group = view.find(groupIndex!=undefined ? 'div.datagrid-group[group-index="'+groupIndex+'"]' : 'div.datagrid-group');
var expander = group.find('span.datagrid-row-expander');
if (expander.hasClass('datagrid-row-collapse')){
expander.removeClass('datagrid-row-collapse').addClass('datagrid-row-expand');
group.next('table').hide();
}
$(this).datagrid('fixRowHeight');
if (opts.onCollapseGroup){
opts.onCollapseGroup.call(this, groupIndex);
}
});
},
scrollToGroup: function(jq, groupIndex){
return jq.each(function(){
var state = $.data(this, 'datagrid');
var dc = state.dc;
var grow = dc.body2.children('div.datagrid-group[group-index="'+groupIndex+'"]');
if (grow.length){
var groupHeight = grow.outerHeight();
var headerHeight = dc.view2.children('div.datagrid-header')._outerHeight();
var frozenHeight = dc.body2.outerHeight(true) - dc.body2.outerHeight();
var top = grow.position().top - headerHeight - frozenHeight;
if (top < 0){
dc.body2.scrollTop(dc.body2.scrollTop() + top);
} else if (top + groupHeight > dc.body2.height() - 18){
dc.body2.scrollTop(dc.body2.scrollTop() + top + groupHeight - dc.body2.height() + 18);
}
}
});
}
});
$.extend(groupview, {
refreshGroupTitle: function(target, groupIndex){
var state = $.data(target, 'datagrid');
var opts = state.options;
var dc = state.dc;
var group = this.groups[groupIndex];
var span = dc.body1.add(dc.body2).children('div.datagrid-group[group-index=' + groupIndex + ']').find('span.datagrid-group-title');
span.html(opts.groupFormatter.call(target, group.value, group.rows));
},
resizeGroup: function(target, groupIndex){
var state = $.data(target, 'datagrid');
var dc = state.dc;
var ht = dc.header2.find('table');
var fr = ht.find('tr.datagrid-filter-row').hide();
// var ww = ht.width();
var ww = dc.body2.children('table.datagrid-btable:first').width();
if (groupIndex == undefined){
var groupHeader = dc.body2.children('div.datagrid-group');
} else {
var groupHeader = dc.body2.children('div.datagrid-group[group-index=' + groupIndex + ']');
}
groupHeader._outerWidth(ww);
var opts = state.options;
if (opts.frozenColumns && opts.frozenColumns.length){
var width = dc.view1.width() - opts.expanderWidth;
var isRtl = dc.view1.css('direction').toLowerCase()=='rtl';
groupHeader.find('.datagrid-group-title').css(isRtl?'right':'left', -width+'px');
}
if (fr.length){
if (opts.showFilterBar){
fr.show();
}
}
// fr.show();
},
insertRow: function(target, index, row){
var state = $.data(target, 'datagrid');
var opts = state.options;
var dc = state.dc;
var group = null;
var groupIndex;
if (!state.data.rows.length){
$(target).datagrid('loadData', [row]);
return;
}
for(var i=0; i<this.groups.length; i++){
if (this.groups[i].value == row[opts.groupField]){
group = this.groups[i];
groupIndex = i;
break;
}
}
if (group){
if (index == undefined || index == null){
index = state.data.rows.length;
}
if (index < group.startIndex){
index = group.startIndex;
} else if (index > group.startIndex + group.rows.length){
index = group.startIndex + group.rows.length;
}
$.fn.datagrid.defaults.view.insertRow.call(this, target, index, row);
if (index >= group.startIndex + group.rows.length){
_moveTr(index, true);
_moveTr(index, false);
}
group.rows.splice(index - group.startIndex, 0, row);
} else {
group = {
value: row[opts.groupField],
rows: [row],
startIndex: state.data.rows.length
}
groupIndex = this.groups.length;
dc.body1.append(this.renderGroup.call(this, target, groupIndex, group, true));
dc.body2.append(this.renderGroup.call(this, target, groupIndex, group, false));
this.groups.push(group);
state.data.rows.push(row);
}
this.setGroupIndex(target);
this.refreshGroupTitle(target, groupIndex);
this.resizeGroup(target);
function _moveTr(index,frozen){
var serno = frozen?1:2;
var prevTr = opts.finder.getTr(target, index-1, 'body', serno);
var tr = opts.finder.getTr(target, index, 'body', serno);
tr.insertAfter(prevTr);
}
},
updateRow: function(target, index, row){
var opts = $.data(target, 'datagrid').options;
$.fn.datagrid.defaults.view.updateRow.call(this, target, index, row);
var tb = opts.finder.getTr(target, index, 'body', 2).closest('table.datagrid-btable');
var groupIndex = parseInt(tb.prev().attr('group-index'));
this.refreshGroupTitle(target, groupIndex);
},
deleteRow: function(target, index){
var state = $.data(target, 'datagrid');
var opts = state.options;
var dc = state.dc;
var body = dc.body1.add(dc.body2);
var tb = opts.finder.getTr(target, index, 'body', 2).closest('table.datagrid-btable');
var groupIndex = parseInt(tb.prev().attr('group-index'));
$.fn.datagrid.defaults.view.deleteRow.call(this, target, index);
var group = this.groups[groupIndex];
if (group.rows.length > 1){
group.rows.splice(index-group.startIndex, 1);
this.refreshGroupTitle(target, groupIndex);
} else {
body.children('div.datagrid-group[group-index='+groupIndex+']').remove();
for(var i=groupIndex+1; i<this.groups.length; i++){
body.children('div.datagrid-group[group-index='+i+']').attr('group-index', i-1);
}
this.groups.splice(groupIndex, 1);
}
this.setGroupIndex(target);
},
setGroupIndex: function(target){
var index = 0;
for(var i=0; i<this.groups.length; i++){
var group = this.groups[i];
group.startIndex = index;
index += group.rows.length;
}
}
});