354 lines
7.7 KiB
JavaScript
354 lines
7.7 KiB
JavaScript
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var Widget = require('./widget');
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module.exports = new Class({
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Extends: Widget
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,Tag: 'htk-grid'
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,Child: 'model'
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,Properties:
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{
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/**
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* The source data model.
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**/
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model:
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{
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type: Db.Model
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,set: function(x) {
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this.link({_model: x},
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{
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'status-changed': this.onModelChange
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,'row-deleted': this.onRowDelete
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,'row-updated': this.onRowUpdate
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,'row-inserted': this.onRowInsert
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,'updatable-changed': this.onUpdatableChange
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});
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var set = new Db.SimpleIterator({model: x});
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this.link({_set: set});
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this.onUpdatableChange();
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this.onModelChange();
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}
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,get: function() {
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return this._model;
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}
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},
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/**
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* Message that should be displayed when source model is not ready.
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**/
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emptyMessage:
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{
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type: String
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,value: null
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},
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/**
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* Wether to display the header with column titles.
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**/
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showHeader:
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{
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type: Boolean
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,set: function(x) {
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this._showHeader = x;
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this.thead.style.display = x ? 'table-header-group' : 'none';
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}
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,get: function() {
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return this._showHeader;
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}
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}
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}
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,_model: null
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,_set: null
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,columns: new Array()
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,internalColumn: null
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,internalColumns: 0
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,sortColumn: -1
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,sortWay: null
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,_showHeader: true
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,render: function() {
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var table = this.createRoot('table');
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table.className = 'htk-grid';
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var thead = this.createElement('thead');
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table.appendChild(thead);
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this.thead = this.createElement('tr')
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thead.appendChild(this.thead);
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this.tbody = this.createElement('tbody');
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table.appendChild(this.tbody);
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}
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,appendChild: function(child) {
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this.appendColumn(child);
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}
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,removeClicked: function(column, value, row) {
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if (confirm(_('ReallyDelete')))
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this._model.deleteRow(row);
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}
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,onRowDelete: function(model, row) {
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var tableRows = this.tbody.childNodes;
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this.tbody.removeChild(tableRows[row]);
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for (var i = row; i < tableRows.length; i++)
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tableRows[i].className = (i % 2) ? 'pair-row' : '';
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this.showNoRecordsFound();
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}
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,onRowInsert: function() {
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this.buildRow(1);
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}
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,renderCell: function(row, column, tr) {
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if (column.columnIndex != -1)
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column.value = this._model.data[row][column.columnIndex];
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if (column.renderer) {
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this._set.row = row;
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column.renderer(column, this._set);
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}
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return column.render(tr);
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}
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,refreshRow: function(row, columns) {
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var x = this.columns;
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var tr = this.tbody.childNodes[row];
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for (var i = 0; i < x.length; i++)
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if (x[i].renderer || columns.indexOf(x[i].columnIndex) != -1) {
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var cell = this.renderCell(row, x[i], tr);
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tr.replaceChild(cell, tr.childNodes[i]);
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}
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}
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,onRowUpdate: function(model, row, columns) {
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this.refreshRow(row, columns);
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}
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,buildRow: function(count) {
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for (var i = 0; i < count; i++) {
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var tr = this.createElement('tr');
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if (i % 2)
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tr.className = 'pair-row';
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for (var j = 0; j < this.columns.length; j++) {
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var cell = this.renderCell(i, this.columns[j], tr);
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tr.appendChild(cell);
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}
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this.tbody.appendChild(tr);
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}
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}
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,onUpdatableChange: function() {
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if (this._model && this._model.updatable) {
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if (!this.internalColumn) {
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this.internalColumn = new Htk.ColumnButton({
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icon: 'delete'
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,tip: _('Remove')
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});
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this.internalColumn.on('clicked', this.removeClicked, this);
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this.insertInternalColumn(0, this.internalColumn);
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}
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} else if (this.internalColumn) {
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this.internalColumn = null;
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this.removeInternalColumn(0);
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}
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}
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,onModelChange: function() {
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var emptyMessage = this.emptyMessage ?
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this.emptyMessage : _('NoData');
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if (!this._model) {
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this.showMessage(emptyMessage, 'refresh');
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return;
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}
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this._node.removeChild(this.tbody);
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this.tbody = this.createElement('tbody');
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switch (this._model.status) {
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case Db.Model.Status.READY:
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{
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for (var i = 0; i < this.columns.length; i++)
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this.columns[i].updateColumnIndex(this._model);
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this.buildRow(this._model.numRows);
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this.showNoRecordsFound();
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break;
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}
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case Db.Model.Status.LOADING:
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this.showMessage(_('Loading'), null);
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break;
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case Db.Model.Status.CLEAN:
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this.showMessage(emptyMessage, 'refresh');
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break;
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case Db.Model.Status.ERROR:
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this.showMessage(_('ErrorLoadingData'), 'error');
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break;
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}
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this._node.appendChild(this.tbody);
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}
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,showNoRecordsFound: function() {
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if (this._model.numRows == 0)
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this.showMessage(_('EmptyList'), 'block');
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}
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,showMessage: function(message, src) {
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if (this.columns.length == 0)
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return;
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var tr = this.createElement('tr');
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this.tbody.appendChild(tr);
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var td = this.createElement('td');
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td.className = 'message';
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td.colSpan = this.columns.length;
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tr.appendChild(td);
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if (src) {
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const icon = new Htk.Icon({
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name: src
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});
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td.appendChild(icon.node);
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} else {
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var spinner = new Htk.Spinner();
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spinner.start();
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td.appendChild(spinner.node);
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}
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var message = this.createTextNode(message);
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td.appendChild(message);
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}
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,scrollToRow: function(row) {
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if (row >= 0) {
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var height = parseInt(this.tr.style.height);
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this.node.scrollTop = (row - 2) * height;
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if (this.selectedRow)
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this.selectedRow.style.backgroundColor = null;
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this.selectedRow = this.tbody.childNodes[row]
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this.selectedRow.style.backgroundColor = '#AAD';
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}
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}
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,sortModel: function(column) {
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var columnIndex = column.columnIndex;
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if (this._model && columnIndex != -1) {
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if (this.sortColumn === columnIndex
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&& this.sortWay === Db.Model.SortWay.ASC)
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this.sortWay = Db.Model.SortWay.DESC;
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else
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this.sortWay = Db.Model.SortWay.ASC;
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this.sortColumn = columnIndex;
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this._model.sort(columnIndex, this.sortWay);
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}
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}
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,columnChanged: function(column, row, newValue) {
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var columnIndex = column.columnIndex;
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if (columnIndex != -1)
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this._model.setByIndex(row, columnIndex, newValue);
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}
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,addColumn: function(pos, column) {
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var header = column.renderHeader();
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if (pos == -1 || pos >= this.columns.length) {
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pos = this.columns.push(column) - 1;
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this.thead.appendChild(header);
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} else {
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this.columns.splice(pos, 0, column);
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this.thead.insertBefore(header, this.thead.childNodes[pos]);
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}
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header.addEventListener('click',
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this.sortModel.bind(this, column));
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header.title = _('Sort');
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column.on('changed', this.columnChanged, this);
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var rows = this.tbody.childNodes;
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if (this._model && this._model.numRows > 0)
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for (var i = 0; i < rows.length; i++) {
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var cell = this.renderCell(i, column, rows[i]);
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rows[i].insertBefore(cell, rows[i].childNodes[pos+1]);
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}
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return pos;
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}
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,insertInternalColumn: function(pos, column) {
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if (pos < 0 || pos > this.internalColumns)
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pos = this.internalColumns;
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this.internalColumns++;
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return this.addColumn(pos, column);
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}
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,insertColumn: function(pos, column) {
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if (pos > 0)
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pos += this.internalColumns;
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return this.addColumn(pos, column) - this.internalColumns;
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}
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,appendColumn: function(column) {
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return this.insertColumn(-1, column);
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}
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,deleteColumn: function(pos) {
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if (pos < 0 || pos >= this.columns.length)
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return;
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this.columns.splice(pos, 1);
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this.thead.removeChild(this.thead.childNodes[pos]);
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var rows = this.tbody.childNodes;
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if (this._model && this._model.numRows > 0)
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for (var i = 0; i < rows.length; i++)
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rows[i].removeChild(rows[i].childNodes[pos]);
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}
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,removeInternalColumn: function(pos) {
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if (this.internalColumns == 0)
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return;
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if (pos < 0 || pos > this.internalColumns)
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pos = this.internalColumns;
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this.deleteColumn(pos);
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this.internalColumns--;
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}
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,removeColumn: function(pos) {
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if (pos > 0)
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pos += this.internalColumns;
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this.deleteColumn(pos);
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}
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,reloadModel: function() {
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if (this._model != null)
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this.onModelChange();
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}
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});
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