forked from verdnatura/hedera-web
73 lines
1.3 KiB
JavaScript
73 lines
1.3 KiB
JavaScript
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var Iterator = require('./iterator');
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var ModelIface = require('./model-iface');
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module.exports = new Class({
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Extends: Iterator
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,Tag: 'db-form'
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,Properties: {
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model: {
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type: ModelIface
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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-updated': this.onModelRowUpdate
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});
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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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* 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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type: Number
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,set: function(x) {
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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.rowChanged();
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}
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,get: function() {
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return this._row;
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}
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}
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}
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,initialize: function(props) {
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Object.assign(this, {
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_lastRow: 0
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,_lastReady: false
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});
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Iterator.prototype.initialize.call(this, props);
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}
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,onModelChange: function() {
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var ready = this._model && this._model.ready;
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if (ready != this._lastReady) {
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if (this._row != -1)
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this._lastRow = this._row;
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this._lastReady = ready;
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this.emit('status-changed');
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if (this._row == -1)
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this.row = this._lastRow;
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if (ready)
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this.emit('ready');
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}
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}
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,onModelRowUpdate: function(model, row) {
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if (row == this._row)
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this.rowChanged();
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}
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});
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