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/*******************************************************************************
See __openerp__.py file for Copyright and Licence Informations.
*******************************************************************************/
openerp.web_widget_float_formula = function (instance) {
instance.web.FormView = instance.web.FormView.extend({
/***********************************************************************
Overload section
***********************************************************************/
/**
* Overload : '_process_save' function
1: to force computation of formula if the user realize a keydown directly after the formula input in a tree view ;
2: to clean up the '_formula_text' value in all case to avoid bugs in tree view ;
*/
_process_save: function(save_obj) {
for (var f in this.fields) {
if (!this.fields.hasOwnProperty(f)) { continue; }
f = this.fields[f];
if (f.hasOwnProperty('_formula_text')){
currentval = f.$('input').attr('value')
if (typeof currentval != 'undefined'){
formula = f._get_valid_expression(currentval);
if (formula){
f._compute_result();
}
}
f._clean_formula_text();
}
}
return this._super(save_obj);
},
});
instance.web.form.FieldFloat = instance.web.form.FieldFloat.extend({
/***********************************************************************
Overload section
***********************************************************************/
/**
* Overload : 'start' function to catch 'blur' and 'focus' events.
*/
start: function() {
this.on("blurred", this, this._compute_result);
this.on("focused", this, this._display_formula);
return this._super();
},
/**
* Overload : 'initialize_content' function to clean '_formula_text' value.
*/
initialize_content: function() {
this._clean_formula_text();
return this._super();
},
/***********************************************************************
Custom section
***********************************************************************/
/**
* keep in memory the formula to allow user to edit it again.
The formula has to be keeped in memory until a 'save' action.
*/
_formula_text: '',
/**
* Clean '_formula_text' value.
*/
_clean_formula_text: function() {
this._formula_text = '';
},
/**
* Return a valid formula from a val, if possible.
Otherwise, return false.
*/
_get_valid_expression: function(val) {
// Trim the value
currenttxt = val.toString().replace(/^\s+|\s+$/g, '');
// Test if the value is a formula
if (currenttxt[0] == '=') {
// allowed chars : [0-9] .,+-/*() and spaces
myreg = RegExp('[0-9]|\\s|\\.|,|\\(|\\)|\\+|\\-|\\*|\\/','g')
// Test to avoid code injonction in eval function.
if (currenttxt.substring(1).replace(myreg, '') == ''){
try {
// Try to compute
formula = currenttxt.substring(1).replace(/,/g,'.');
var floatval = eval(formula);
}catch (e) {}
if (typeof (floatval) != 'undefined'){
return formula;
}
}
}
return false;
},
/**
* test if the content of the field is a valid formula,
* compute the result, and replace the current value by the final result.
*/
_compute_result: function() {
var formula
// Erase old formula
this._formula_text = '';
formula = this._get_valid_expression(this.$el.find('input').attr('value'));
if (formula){
// Store new formula
this._formula_text = "=" + formula;
// put the result in the field
this.set_value(eval(formula));
// Force rendering anyway to avoid format loss if no change
this.render_value();
}
},
/**
* Display the stored formula in the field, to allow modification.
*/
_display_formula: function() {
if (this._formula_text != ''){
this.$el.find('input').val(this._formula_text);
}
},
});
};