forked from verdnatura/hedera-web
170 lines
2.9 KiB
JavaScript
Executable File
170 lines
2.9 KiB
JavaScript
Executable File
Htk.Select = new Class
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({
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Extends: Htk.Field
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,Implements: Db.Iterator
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,Tag: 'htk-combo'
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,Properties:
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{
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/**
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* The model associated to this form.
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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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{
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this.link ({_model: x}, {'status-changed': this.onModelChange});
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this.onModelChange ();
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}
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,get: function ()
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{
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return this._model;
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}
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},
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/**
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* The row where the form positioned, has -1 if the row is unselected.
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**/
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row:
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{
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type: Number
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,set: function (x)
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{
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if (!this._model || this._model.numRows <= x || x < -1)
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x = -1;
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if (x == this._row)
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return;
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this._row = x;
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this.iterChanged ();
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}
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,get: function ()
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{
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return this._row;
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}
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},
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/**
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* The number of rows in the form.
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**/
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numRows:
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{
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type: Number
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,get: function ()
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{
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if (this._model)
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return this._model.numRows;
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return 0;
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}
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},
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/**
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* Checks if the form data is ready.
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**/
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ready:
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{
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type: Boolean
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,get: function ()
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{
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return this._ready;
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}
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}
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}
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,_row: -1
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,_model: null
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,valueColumnIndex: 0
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,valueColumnName: null
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,showColumnIndex: 1
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,showColumnName: null
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,initialize: function (props)
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{
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this.parent (props);
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this.createElement ('select');
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this.node.addEventListener ('change', this.changed.bind (this));
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}
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,setRow: function (row)
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{
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this._row = row;
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this.iterChanged ();
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}
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,changed: function (event)
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{
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var value;
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var row = this.node.selectedIndex - 1;
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if (row >= 0)
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value = this._model.getByIndex (row, this.valueColumnIndex);
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else
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value = null;
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this.valueChanged (value);
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this.setRow (row);
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}
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,addOption: function (value, text)
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{
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var option = document.createElement ('option');
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option.value = value;
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option.appendChild (document.createTextNode (text));
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this.node.appendChild (option);
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}
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,onModelChange: function ()
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{
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var model = this._model;
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this.signalEmit ('status-changed');
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Vn.Node.removeChilds (this.node);
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switch (model.status)
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{
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case Db.Model.Status.READY:
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{
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var data = model.data;
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this.addOption (null, '');
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for (var i = 0; i < data.length; i++)
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this.addOption (data[i][this.showColumnIndex], data[i][1]);
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this.selectOption ();
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break;
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}
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case Db.Model.Status.ERROR:
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this.addOption (null, _('Error'));
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case Db.Model.Status.LOADING:
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this.addOption (null, _('Loading...'));
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default:
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this.setRow (-1);
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}
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}
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,setEditable: function (editable)
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{
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this.node.disabled = !editable;
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}
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,selectOption: function ()
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{
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var row;
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if (this._model && this._model.status == Db.Model.Status.READY)
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{
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row = this._model.searchByIndex (this.valueColumnIndex, this._value);
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if (row != -1)
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this.node.selectedIndex = row + 1;
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}
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else
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row = -1;
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this.setRow (row);
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}
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,putValue: function (value)
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{
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this.selectOption ();
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}
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});
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