109 lines
1.6 KiB
JavaScript
Executable File
109 lines
1.6 KiB
JavaScript
Executable File
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Db.Form = new Class
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({
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Extends: Vn.Object
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,Implements: Db.Iterator
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,Tag: 'db-form'
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,Child: 'model'
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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},
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{
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'status-changed': this.onModelChange
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,'row-updated': this.onRowUpdate
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});
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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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,lastRow: 0
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,_model: null
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,_row: -1
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,_ready: false
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,onModelChange: function ()
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{
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var ready = this._model && this._model.ready;
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if (ready != this._ready)
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{
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if (this._row != -1)
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this.lastRow = this._row;
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this._ready = ready;
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this.signalEmit ('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.signalEmit ('ready');
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}
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}
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,onRowUpdate: function (model, row, column)
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{
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if (row == this._row)
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this.iterChanged ();
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}
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});
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