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52053Re: [ydn-javascript] Re: Expandable DataTable unsortable?

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  • Christian Tiberg
    Nov 3, 2009
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      That's now done. Did I put the URL in the right place?

      Best regards,
       Christian Tiberg


      2009/11/1 Satyam <satyam@...>
       

      I filed a ticket for the example:

      http://yuilibrary.com/projects/yui2/ticket/2528595

      Why don't you upload your code to GIST (or any other way to make it
      public) and make a reference to it from this same ticket.

      Thanks for your help

      Satyam

      Christian Tiberg escribió:


      >
      >
      > Here's the finished class, perhaps someone could update the example?
      > Then other people won't have to go through this :)
      >
      > (function(){
      > var Dom = YAHOO.util.Dom,
      > STRING_STATENAME = 'yui_dt_state',
      > CLASS_EXPANDED = 'yui-dt-expanded',
      > CLASS_COLLAPSED = 'yui-dt-collapsed',
      > CLASS_EXPANSION = 'yui-dt-expansion',
      > CLASS_LINER = 'yui-dt-liner',
      >
      > //From YUI 3
      > indexOf = function(a, val) {
      > for (var i=0; i<a.length; i=i+1) {
      > if (a[i] === val) {
      > return i;
      > }
      > }
      >
      > return -1;
      > };
      >
      > YAHOO.widget.ExpandableDataTable = function()
      > {
      > YAHOO.widget.ExpandableDataTable.superclass.constructor.apply(this,arguments);
      > }
      >
      > YAHOO.lang.extend(YAHOO.widget.ExpandableDataTable,
      > YAHOO.widget.DataTable, {
      >
      > /////////////////////////////////////////////////////////////////////////////
      > //
      > // Private members
      > //
      > /////////////////////////////////////////////////////////////////////////////
      >
      > /**
      > * Gets state object for a specific record associated with the DataTable.
      > * @method _getRecordState
      > * @param {Mixed} record_id Record / Row / or Index id
      > * @param {String} key Key to return within the state object. Default is to
      > * return all as a map
      > * @return {Object} State data object
      > * @type mixed
      > * @private
      > **/
      > _getRecordState : function( record_id, key ){
      >
      > var row_data = this.getRecord( record_id ),
      > row_state = row_data.getData( STRING_STATENAME ),
      > state_data = ( row_state && key ) ? row_state[ key ] : row_state;
      >
      > return state_data || {};
      >
      > },
      >
      > /**
      > * Sets a value to a state object with a unique id for a record which
      > * is associated with the DataTable
      > * @method _setRecordState
      > * @param {Mixed} record_id Record / Row / or Index id
      > * @param {String} key Key to use in map
      > * @param {Mixed} value Value to assign to the key
      > * @return {Object} State data object
      > * @type mixed
      > * @private
      > **/
      > _setRecordState : function( record_id, key, value ){
      >
      > var row_data = this.getRecord( record_id ).getData(),
      > merged_data = row_data[ STRING_STATENAME ] || {};
      >
      > merged_data[ key ] = value;
      >
      > this.getRecord( record_id ).setData( STRING_STATENAME, merged_data );
      >
      > return merged_data;
      >
      > },
      >
      > /////////////////////////////////////////////////////////////////////////////
      > //
      > // Public methods
      > //
      > /////////////////////////////////////////////////////////////////////////////
      >
      > /**
      > * Over-ridden initAttributes method from DataTable
      > * @method initAttributes
      > * @param {Mixed} record_id Record / Row / or Index id
      > * @param {String} key Key to use in map
      > * @param {Mixed} value Value to assign to the key
      > * @return {Object} State data object
      > * @type mixed
      > **/
      > initAttributes : function( oConfigs ) {
      >
      > oConfigs = oConfigs || {};
      >
      > YAHOO.widget.ExpandableDataTable.superclass.initAttributes.call(this,
      > oConfigs);
      >
      > /**
      > * @attribute rowExpansionTemplate
      > * @description Value for the rowExpansionTemplate attribute.
      > * @type {Mixed}
      > * @default ""
      > **/
      > this.setAttributeConfig("rowExpansionTemplate", {
      > value: "",
      > validator: function( template ){
      > return (
      > YAHOO.lang.isString( template ) ||
      > YAHOO.lang.isFunction( template )
      > );
      > },
      > method: this.initRowExpansion
      > });
      >
      > },
      >
      > /**
      > * Initializes row expansion on the DataTable instance
      > * @method initRowExpansion
      > * @param {Mixed} template a string template or function to be called when
      > * Row is expanded
      > * @type mixed
      > **/
      > initRowExpansion : function( template ){
      >
      > //Set subscribe restore method
      > this.subscribe( 'postRenderEvent', this.onEventRestoreRowExpansion );
      >
      > //Setup template
      > this.rowExpansionTemplate = template;
      >
      > //Set table level state
      > this.a_rowExpansions = [];
      >
      > },
      >
      > /**
      > * Toggles the expansion state of a row
      > * @method toggleRowExpansion
      > * @param {Mixed} record_id Record / Row / or Index id
      > * @type mixed
      > **/
      > toggleRowExpansion : function( record_id ){
      >
      > var state = this._getRecordState( record_id );
      >
      > if( state && state.expanded ){
      >
      > this.collapseRow( record_id );
      >
      > } else {
      >
      > this.expandRow( record_id );
      >
      > }
      >
      > },
      >
      > /**
      > * Sets the expansion state of a row to expanded
      > * @method expandRow
      > * @param {Mixed} record_id Record / Row / or Index id
      > * @param {Boolean} restore will restore an exisiting state for a
      > * row that has been collapsed by a non user action
      > * @return {Boolean} successful
      > * @type mixed
      > **/
      > expandRow : function( record_id, restore ){
      >
      > var state = this._getRecordState( record_id );
      >
      > if( !state.expanded || restore ){
      >
      > var row_data = this.getRecord( record_id ),
      > row = this.getRow( row_data ),
      > new_row = document.createElement('tr'),
      > column_length = this.getFirstTrEl().childNodes.length,
      > expanded_data = row_data.getData(),
      > expanded_content = null,
      > template = this.rowExpansionTemplate,
      > next_sibling = Dom.getNextSibling( row );
      >
      > //Construct expanded row body
      > new_row.className = CLASS_EXPANSION;
      > var new_column = document.createElement( 'td' );
      > new_column.colSpan = column_length;
      >
      > new_column.innerHTML = '<div class="'+ CLASS_LINER +'"></div>';
      > new_row.appendChild( new_column );
      >
      > var liner_element = new_row.firstChild.firstChild;
      >
      > if( YAHOO.lang.isString( template ) ){
      >
      > liner_element.innerHTML = YAHOO.lang.substitute(
      > template,
      > expanded_data
      > );
      >
      > } else if( YAHOO.lang.isFunction( template ) ) {
      >
      > template( {
      > row_element : new_row,
      > liner_element : liner_element,
      > data : row_data,
      > state : state
      >
      > } );
      >
      > } else {
      >
      > return false;
      >
      > }
      >
      > //Insert new row
      > newRow = Dom.insertAfter( new_row, row );
      >
      > if (newRow.innerHTML.length) {
      >
      > this._setRecordState( record_id, 'expanded', true );
      >
      > if( !restore ){
      >
      > this.a_rowExpansions.push( this.getRecord( record_id ).getId() );
      >
      > }
      >
      > Dom.removeClass( row, CLASS_COLLAPSED );
      > Dom.addClass( row, CLASS_EXPANDED );
      >
      > //Fire custom event
      > this.fireEvent( "rowExpandEvent", { record_id : row_data.getId() } );
      >
      > return true;
      >
      > } else {
      >
      > return false;
      >
      > }
      >
      > }
      >
      > },
      >
      > /**
      > * Sets the expansion state of a row to collapsed
      > * @method collapseRow
      > * @param {Mixed} record_id Record / Row / or Index id
      > * @return {Boolean} successful
      > * @type mixed
      > **/
      > collapseRow : function( record_id ){
      >
      > var row_data = this.getRecord( record_id ),
      > row = Dom.get( row_data.getId() ),
      > state = row_data.getData( STRING_STATENAME );
      >
      > if( state && state.expanded ){
      >
      > var next_sibling = Dom.getNextSibling( row ),
      > hash_index = indexOf( this.a_rowExpansions, record_id );
      >
      > if( Dom.hasClass( next_sibling, CLASS_EXPANSION ) ) {
      >
      > next_sibling.parentNode.removeChild( next_sibling );
      > this.a_rowExpansions.splice( hash_index, 1 );
      > this._setRecordState( record_id, 'expanded', false );
      >
      > Dom.addClass( row, CLASS_COLLAPSED );
      > Dom.removeClass( row, CLASS_EXPANDED );
      >
      > //Fire custom event
      > this.fireEvent("rowCollapseEvent", { record_id : row_data.getId() } );
      >
      > return true;
      >
      > } else {
      >
      > return false;
      >
      > }
      >
      > }
      >
      > },
      >
      > /**
      > * Collapses all expanded rows. This should be called before any action
      > where
      > * the row expansion markup would interfear with normal DataTable
      > markup handling.
      > * This method does not remove exents attached during implementation.
      > All event
      > * handlers should be removed separately.
      > * @method collapseAllRows
      > * @type mixed
      > **/
      > collapseAllRows : function(){
      >
      > var rows = this.a_rowExpansions;
      >
      > for( var i = 0, l = rows.length; l > i; i++ ){
      >
      > //Always pass 0 since collapseRow removes item from the
      > a_rowExpansions array
      > this.collapseRow( rows[ 0 ] );
      >
      > }
      >
      > a_rowExpansions = [];
      >
      > },
      >
      > /**
      > * Restores rows which have an expanded state but no markup. This
      > * is to be called to restore row expansions after the DataTable
      > * renders or the collapseAllRows is called.
      > * @method collapseAllRows
      > * @type mixed
      > **/
      > restoreExpandedRows : function(){
      >
      > var expanded_rows = this.a_rowExpansions;
      >
      > if( !expanded_rows.length ){
      >
      > return;
      >
      > }
      >
      > if( this.a_rowExpansions.length ){
      >
      > for( var i = 0, l = expanded_rows.length; l > i; i++ ){
      >
      > this.expandRow( expanded_rows[ i ] , true );
      >
      > }
      >
      > }
      >
      > },
      >
      > /**
      > * Abstract method which restores row expansion for subscribing to the
      > * DataTable postRenderEvent.
      > * @method onEventRestoreRowExpansion
      > * @param {Object} oArgs context of a subscribed event
      > * @type mixed
      > **/
      > onEventRestoreRowExpansion : function( oArgs ){
      >
      > this.restoreExpandedRows();
      >
      > },
      >
      > /**
      > * Abstract method which toggles row expansion for subscribing to the
      > * DataTable postRenderEvent.
      > * @method onEventToggleRowExpansion
      > * @param {Object} oArgs context of a subscribed event
      > * @type mixed
      > **/
      > onEventToggleRowExpansion : function( oArgs ){
      >
      > //if( YAHOO.util.Dom.hasClass( oArgs.target,
      > 'yui-dt-expandablerow-trigger' ) ){
      >
      > this.toggleRowExpansion( oArgs.target );
      >
      > //}
      >
      > }
      >
      > }, true //This boolean is needed to override members of the original
      > object
      > );
      >
      > })();
      >
      > Best regards,
      > Christian Tiberg
      >
      >
      > 2009/11/1 Christian Tiberg <ctiberg@... <mailto:ctiberg@...>>

      >
      > Thanks a lot Satyam, that's exactly what I needed!
      >
      > Best regards,
      > Christian Tiberg
      >
      >
      > 2009/10/30 Satyam <satyam@...
      > <mailto:satyam@...>>

      >
      > So, first you declare the constructor of your new table, say:
      >
      > YAHOO.widget.ExpandableDataTable = function () {
      >
      > YAHOO.widget.ExpandableDataTable.superclass.constructor.apply(this,arguments);
      >
      > };
      >
      > If you want to manipulate any of the arguments, name them and
      > use call
      > instead of apply providing your altered arguments. The example
      > code
      > does not do anything with the initial arguments. Then:
      >
      > YAHOO.lang.extend(YAHOO.widget.ExpandableDataTable,
      > YAHOO.widget.DataTable, {
      >
      > initAttributes: function (oConfigs ) {
      >
      > oConfigs = oConfigs || {};
      >
      > YAHOO.widget.ExpandableDataTable.superclass.initAttributes.call(this,
      > oConfigs);
      >
      > // add your own attributes here
      >
      > },
      >
      > // add your own methods and properties here
      >
      > // for methods, remember to call the superclass method, unless
      > you really don't want it
      >
      > });
      >
      >
      >
      >
      >
      >
      > ----------------------------------------------------------
      >
      >
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      >


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