datatable-base.js revision 6eae5adc42f886ebacac1f714be3f0c9e4b205c1
/**
* The DataTable widget provides a progressively enhanced DHTML control for
* displaying tabular data across A-grade browsers.
*
* @module datatable
*/
/**
* Provides the base DataTable implementation, which can be extended to add
* additional functionality, such as sorting or scrolling.
*
* @module datatable
* @submodule datatable-base
*/
/**
* Base class for the DataTable widget.
* @class DataTable.Base
* @extends Widget
* @constructor
*/
function DTBase(config) {
DTBase.superclass.constructor.apply(this, arguments);
}
/////////////////////////////////////////////////////////////////////////////
//
// STATIC PROPERTIES
//
/////////////////////////////////////////////////////////////////////////////
Y.mix(DTBase, {
/**
* Class name.
*
* @property NAME
* @type String
* @static
* @final
* @value "dataTable"
*/
NAME: "dataTable",
/////////////////////////////////////////////////////////////////////////////
//
// ATTRIBUTES
//
/////////////////////////////////////////////////////////////////////////////
ATTRS: {
/**
* @attribute columnset
* @description Pointer to Columnset instance.
* @type Array | Y.Columnset
*/
columnset: {
setter: "_setColumnset"
},
/**
* @attribute recordset
* @description Pointer to Recordset instance.
* @type Array | Y.Recordset
*/
recordset: {
valueFn: '_initRecordset',
setter: "_setRecordset"
},
/*TODO
* @attribute state
* @description Internal state.
* @readonly
* @type
*/
/*state: {
value: new Y.State(),
readOnly: true
},*/
/**
* @attribute summary
* @description Summary.
* @type String
*/
summary: {
},
/**
* @attribute caption
* @description Caption
* @type String
*/
caption: {
},
/**
* @attribute thValueTemplate
* @description Tokenized markup template for TH value.
* @type String
* @default '{value}'
*/
thValueTemplate: {
value: TEMPLATE_VALUE
},
/**
* @attribute tdValueTemplate
* @description Tokenized markup template for TD value.
* @type String
* @default '{value}'
*/
tdValueTemplate: {
value: TEMPLATE_VALUE
},
/**
* @attribute trTemplate
* @description Tokenized markup template for TR node creation.
* @type String
* @default '<tr id="{id}"></tr>'
*/
trTemplate: {
value: TEMPLATE_TR
}
},
/////////////////////////////////////////////////////////////////////////////
//
// TODO: HTML_PARSER
//
/////////////////////////////////////////////////////////////////////////////
HTML_PARSER: {
/*caption: function (srcNode) {
}*/
}
});
/////////////////////////////////////////////////////////////////////////////
//
// PROTOTYPE
//
/////////////////////////////////////////////////////////////////////////////
Y.extend(DTBase, Y.Widget, {
/**
* @property thTemplate
* @description Tokenized markup template for TH node creation.
* @type String
* @default '<th id="{id}" rowspan="{rowspan}" colspan="{colspan}" class="{classnames}" abbr="{abbr}"><div class="'+CLASS_LINER+'">{value}</div></th>'
*/
thTemplate: TEMPLATE_TH,
/**
* @property tdTemplate
* @description Tokenized markup template for TD node creation.
* @type String
* @default '<td headers="{headers}"><div class="'+CLASS_LINER+'">{value}</div></td>'
*/
tdTemplate: TEMPLATE_TD,
/**
* @property _theadNode
* @description Pointer to THEAD node.
* @type Y.Node
* @private
*/
_theadNode: null,
/**
* @property _tbodyNode
* @description Pointer to TBODY node.
* @type Y.Node
* @private
*/
_tbodyNode: null,
/**
* @property _msgNode
* @description Pointer to message display node.
* @type Y.Node
* @private
*/
_msgNode: null,
/////////////////////////////////////////////////////////////////////////////
//
// ATTRIBUTE HELPERS
//
/////////////////////////////////////////////////////////////////////////////
/**
* @method _setColumnset
* @description Converts Array to Y.Columnset.
* @param columns {Array | Y.Columnset}
* @return Y.Columnset
* @private
*/
_setColumnset: function(columns) {
return YLang.isArray(columns) ? new Y.Columnset({definitions:columns}) : columns;
},
/**
* Updates the UI if Columnset is changed.
*
* @method _afterColumnsetChange
* @param e {Event} Custom event for the attribute change.
* @protected
*/
_afterColumnsetChange: function (e) {
this._uiSetColumnset(e.newVal);
},
/**
* @method _setRecordset
* @description Converts Array to Y.Recordset.
* @param records {Array | Y.Recordset}
* @return Y.Recordset
* @private
*/
_setRecordset: function(rs) {
if(YLang.isArray(rs)) {
rs = new Y.Recordset({records:rs});
}
rs.addTarget(this);
return rs;
},
/**
* Updates the UI if Recordset is changed.
*
* @method _afterRecordsetChange
* @param e {Event} Custom event for the attribute change.
* @protected
*/
_afterRecordsetChange: function (e) {
this._uiSetRecordset(e.newVal);
},
/**
* Updates the UI if Recordset records are changed.
*
* @method _afterRecordsChange
* @param e {Event} Custom event for the attribute change.
* @protected
*/
_afterRecordsChange: function (e) {
this._uiSetRecordset(this.get('recordset'));
},
/**
* Updates the UI if summary is changed.
*
* @method _afterSummaryChange
* @param e {Event} Custom event for the attribute change.
* @protected
*/
_afterSummaryChange: function (e) {
this._uiSetSummary(e.newVal);
},
/**
* Updates the UI if caption is changed.
*
* @method _afterCaptionChange
* @param e {Event} Custom event for the attribute change.
* @protected
*/
_afterCaptionChange: function (e) {
this._uiSetCaption(e.newVal);
},
////////////////////////////////////////////////////////////////////////////
//
// METHODS
//
////////////////////////////////////////////////////////////////////////////
/**
* Destructor.
*
* @method destructor
* @private
*/
destructor: function() {
this.get("recordset").removeTarget(this);
},
////////////////////////////////////////////////////////////////////////////
//
// RENDER
//
////////////////////////////////////////////////////////////////////////////
/**
* Renders UI.
*
* @method renderUI
* @private
*/
renderUI: function() {
// TABLE
this._addTableNode(this.get("contentBox"));
// COLGROUP
this._addColgroupNode(this._tableNode);
// THEAD
this._addTheadNode(this._tableNode);
// Primary TBODY
this._addTbodyNode(this._tableNode);
// Message TBODY
this._addMessageNode(this._tableNode);
// CAPTION
this._addCaptionNode(this._tableNode);
},
/**
* Creates and attaches TABLE element to given container.
*
* @method _addTableNode
* @param containerNode {Node} Parent node.
* @protected
* @return Y.Node
*/
_addTableNode: function(containerNode) {
if (!this._tableNode) {
this._tableNode = containerNode.appendChild(Ycreate(TEMPLATE_TABLE));
}
return this._tableNode;
},
/**
* Creates and attaches COLGROUP element to given TABLE.
*
* @method _addColgroupNode
* @param tableNode {Node} Parent node.
* @protected
* @return Y.Node
*/
_addColgroupNode: function(tableNode) {
// Add COLs to DOCUMENT FRAGMENT
var len = this.get("columnset").keys.length,
i = 0,
allCols = ["<colgroup>"];
for(; i<len; ++i) {
allCols.push(TEMPLATE_COL);
}
allCols.push("</colgroup>");
// Create COLGROUP
this._colgroupNode = tableNode.insertBefore(Ycreate(allCols.join("")), tableNode.get("firstChild"));
return this._colgroupNode;
},
/**
* Creates and attaches THEAD element to given container.
*
* @method _addTheadNode
* @param tableNode {Node} Parent node.
* @protected
* @return Y.Node
*/
_addTheadNode: function(tableNode) {
if(tableNode) {
this._theadNode = tableNode.insertBefore(Ycreate(TEMPLATE_THEAD), this._colgroupNode.next());
return this._theadNode;
}
},
/**
* Creates and attaches TBODY element to given container.
*
* @method _addTbodyNode
* @param tableNode {Node} Parent node.
* @protected
* @return Y.Node
*/
_addTbodyNode: function(tableNode) {
this._tbodyNode = tableNode.appendChild(Ycreate(TEMPLATE_TBODY));
return this._tbodyNode;
},
/**
* Creates and attaches message display element to given container.
*
* @method _addMessageNode
* @param tableNode {Node} Parent node.
* @protected
* @return Y.Node
*/
_addMessageNode: function(tableNode) {
this._msgNode = tableNode.insertBefore(Ycreate(TEMPLATE_MSG), this._tbodyNode);
return this._msgNode;
},
/**
* Creates and attaches CAPTION element to given container.
*
* @method _addCaptionNode
* @param tableNode {Node} Parent node.
* @protected
* @return Y.Node
*/
_addCaptionNode: function(tableNode) {
this._captionNode = Y.Node.create('<caption></caption>');
},
////////////////////////////////////////////////////////////////////////////
//
// BIND
//
////////////////////////////////////////////////////////////////////////////
/**
* Binds events.
*
* @method bindUI
* @private
*/
bindUI: function() {
this.after({
columnsetChange: this._afterColumnsetChange,
recordsetChange: this._afterRecordsetChange,
summaryChange : this._afterSummaryChange,
captionChange : this._afterCaptionChange,
"recordset:recordsChange": this._afterRecordsChange
});
},
delegate: function(type) {
//TODO: is this necessary?
if(type==="dblclick") {
this.get("boundingBox").delegate.apply(this.get("boundingBox"), arguments);
}
else {
this.get("contentBox").delegate.apply(this.get("contentBox"), arguments);
}
},
////////////////////////////////////////////////////////////////////////////
//
// SYNC
//
////////////////////////////////////////////////////////////////////////////
/**
* Syncs UI to intial state.
*
* @method syncUI
* @private
*/
syncUI: function() {
// THEAD ROWS
this._uiSetColumnset(this.get("columnset"));
// DATA ROWS
this._uiSetRecordset(this.get("recordset"));
// SUMMARY
this._uiSetSummary(this.get("summary"));
// CAPTION
this._uiSetCaption(this.get("caption"));
},
/**
* Updates summary.
*
* @method _uiSetSummary
* @param val {String} New summary.
* @protected
*/
_uiSetSummary: function(val) {
val = YisValue(val) ? val : "";
this._tableNode.set("summary", val);
},
/**
* Updates caption.
*
* @method _uiSetCaption
* @param val {String} New caption.
* @protected
*/
_uiSetCaption: function(val) {
var caption = this._captionNode,
inDoc = caption.inDoc(),
method = val ? (!inDoc && 'prepend') : (inDoc && 'removeChild');
caption.setContent(val || '');
if (method) {
// prepend of remove necessary
this._tableNode[method](caption);
}
},
////////////////////////////////////////////////////////////////////////////
//
// THEAD/COLUMNSET FUNCTIONALITY
//
////////////////////////////////////////////////////////////////////////////
/**
* Updates THEAD.
*
* @method _uiSetColumnset
* @param cs {Columnset} New Columnset.
* @protected
*/
_uiSetColumnset: function(cs) {
var tree = cs.tree,
thead = this._theadNode,
i = 0,
len = tree.length,
parent = thead.get("parentNode"),
nextSibling = thead.next();
// Move THEAD off DOM
thead.remove();
thead.get("children").remove(true);
// Iterate tree of columns to add THEAD rows
for(; i<len; ++i) {
this._addTheadTrNode({thead:thead, columns:tree[i]}, (i === 0), (i === len-1));
}
// Column helpers needs _theadNode to exist
//this._createColumnHelpers();
// Re-attach THEAD to DOM
parent.insert(thead, nextSibling);
},
/**
* Creates and attaches header row element.
*
* @method _addTheadTrNode
* @param o {Object} {thead, columns}.
* @param isFirst {Boolean} Is first row.
* @param isFirst {Boolean} Is last row.
* @protected
*/
_addTheadTrNode: function(o, isFirst, isLast) {
o.tr = this._createTheadTrNode(o, isFirst, isLast);
this._attachTheadTrNode(o);
},
/**
* Creates header row element.
*
* @method _createTheadTrNode
* @param o {Object} {thead, columns}.
* @param isFirst {Boolean} Is first row.
* @param isLast {Boolean} Is last row.
* @protected
* @return Y.Node
*/
_createTheadTrNode: function(o, isFirst, isLast) {
//TODO: custom classnames
var tr = Ycreate(fromTemplate(this.get("trTemplate"), o)),
i = 0,
columns = o.columns,
len = columns.length,
column;
// Set FIRST/LAST class
if(isFirst) {
tr.addClass(CLASS_FIRST);
}
if(isLast) {
tr.addClass(CLASS_LAST);
}
for(; i<len; ++i) {
column = columns[i];
this._addTheadThNode({value:column.get("label"), column: column, tr:tr});
}
return tr;
},
/**
* Attaches header row element.
*
* @method _attachTheadTrNode
* @param o {Object} {thead, columns, tr}.
* @protected
*/
_attachTheadTrNode: function(o) {
o.thead.appendChild(o.tr);
},
/**
* Creates and attaches header cell element.
*
* @method _addTheadThNode
* @param o {Object} {value, column, tr}.
* @protected
*/
_addTheadThNode: function(o) {
o.th = this._createTheadThNode(o);
this._attachTheadThNode(o);
//TODO: assign all node pointers: thNode, thLinerNode, thLabelNode
o.column.thNode = o.th;
},
/**
* Creates header cell element.
*
* @method _createTheadThNode
* @param o {Object} {value, column, tr}.
* @protected
* @return Y.Node
*/
_createTheadThNode: function(o) {
var column = o.column;
// Populate template object
o.id = column.get("id");//TODO: validate 1 column ID per document
o.colspan = column.colSpan;
o.rowspan = column.rowSpan;
o.abbr = column.get("abbr");
o.classnames = column.get("classnames");
o.value = fromTemplate(this.get("thValueTemplate"), o);
/*TODO
// Clear minWidth on hidden Columns
if(column.get("hidden")) {
//this._clearMinWidth(column);
}
*/
return Ycreate(fromTemplate(this.thTemplate, o));
},
/**
* Attaches header cell element.
*
* @method _attachTheadThNode
* @param o {Object} {value, column, tr}.
* @protected
*/
_attachTheadThNode: function(o) {
o.tr.appendChild(o.th);
},
////////////////////////////////////////////////////////////////////////////
//
// TBODY/RECORDSET FUNCTIONALITY
//
////////////////////////////////////////////////////////////////////////////
/**
* Updates TBODY.
*
* @method _uiSetRecordset
* @param rs {Recordset} New Recordset.
* @protected
*/
_uiSetRecordset: function(rs) {
var oldTbody = this._tbodyNode,
parent = oldTbody.get("parentNode"),
nextSibling = oldTbody.next(),
columns = this.get('columnset').keys,
cellValueTemplate = this.get('tdValueTemplate'),
o = {},
newTbody, i, len, column, formatter;
// Replace TBODY with a new one
//TODO: split _addTbodyNode into create/attach
oldTbody.remove();
oldTbody = null;
newTbody = this._addTbodyNode(this._tableNode);
newTbody.remove();
this._tbodyNode = newTbody;
o.tbody = newTbody;
o.rowTemplate = this.get('trTemplate');
o.columns = [];
// Build up column data to avoid passing through Attribute APIs inside
// render loops for rows and cells
for (i = columns.length - 1; i >= 0; --i) {
column = columns[i];
o.columns[i] = {
column : column,
fields : column.get('field'),
classes: column.get('classnames')
}
formatter = column.get('formatter');
if (!YLang.isFunction(formatter)) {
// Convert non-function formatters into functions
// String formatters are treated as alternate value templates
// Any other value for formatter is ignored, falling back to
// to the configured tdValueTemplate attribute value.
if (!YLang.isString(formatter)) {
formatter = cellValueTemplate;
}
formatter = Y.bind(fromTemplate, this, formatter);
}
o.columns[i].formatter = formatter;
}
// Iterate Recordset to use existing TR when possible or add new TR
// TODO i = this.get("state.offsetIndex")
// TODO len =this.get("state.pageLength")
for (i = 0, len = rs.size(); i < len; ++i) {
o.record = rs.item(i);
o.data = o.record.get("data");
o.rowindex = i;
this._addTbodyTrNode(o); //TODO: sometimes rowindex != recordindex
}
// TBODY to DOM
parent.insert(this._tbodyNode, nextSibling);
},
/**
* Creates and attaches data row element.
*
* @method _addTbodyTrNode
* @param o {Object} {tbody, record}
* @protected
*/
_addTbodyTrNode: function(o) {
var row = o.tbody.one("#" + o.record.get("id"));
o.tr = row || this._createTbodyTrNode(o);
this._attachTbodyTrNode(o);
},
/**
* Creates data row element.
*
* @method _createTbodyTrNode
* @param o {Object} {tbody, record}
* @protected
* @return Y.Node
*/
_createTbodyTrNode: function(o) {
var columns = o.columns,
i, len, columnInfo;
o.tr = Ycreate(fromTemplate(o.rowTemplate, { id: o.record.get('id') }));
for (i = 0, len = columns.length; i < len; ++i) {
columnInfo = columns[i];
o.column = columnInfo.column;
o.field = columnInfo.fields;
o.classnames = columnInfo.classes;
o.formatter = columnInfo.formatter;
this._addTbodyTdNode(o);
}
return o.tr;
},
/**
* Attaches data row element.
*
* @method _attachTbodyTrNode
* @param o {Object} {tbody, record, tr}.
* @protected
*/
_attachTbodyTrNode: function(o) {
var tbody = o.tbody,
tr = o.tr,
index = o.rowindex,
nextSibling = tbody.get("children").item(index) || null,
isOdd = (index % 2);
if(isOdd) {
tr.replaceClass(CLASS_EVEN, CLASS_ODD);
} else {
tr.replaceClass(CLASS_ODD, CLASS_EVEN);
}
tbody.insertBefore(tr, nextSibling);
},
/**
* Creates and attaches data cell element.
*
* @method _addTbodyTdNode
* @param o {Object} {record, column, tr}.
* @protected
*/
_addTbodyTdNode: function(o) {
o.td = this._createTbodyTdNode(o);
this._attachTbodyTdNode(o);
},
/**
* Creates data cell element.
*
* @method _createTbodyTdNode
* @param o {Object} {record, column, tr}.
* @protected
* @return Y.Node
*/
_createTbodyTdNode: function(o) {
o.headers = o.column.headers;
o.value = this.formatDataCell(o);
return Ycreate(fromTemplate(this.tdTemplate, o));
},
/**
* Attaches data cell element.
*
* @method _attachTbodyTdNode
* @param o {Object} {record, column, tr, headers, classnames, value}.
* @protected
*/
_attachTbodyTdNode: function(o) {
o.tr.appendChild(o.td);
},
/**
* Returns markup to insert into data cell element.
*
* @method formatDataCell
* @param @param o {Object} {record, column, tr, headers, classnames}.
*/
formatDataCell: function(o) {
o.value = o.data[o.field];
return o.formatter.call(this, o);
},
_initRecordset: function () {
return new Y.Recordset({ records: [] });
}
});
Y.namespace("DataTable").Base = DTBase;