pos_multi_currency/static/src/js/screens.js

function ep_pos_screens(instance,module)
{
	var QWeb = instance.web.qweb;
	var _t = instance.web._t;

	var round_di = instance.web.round_decimals;
	var round_pr = instance.web.round_precision;

	module.PaymentScreenWidget=module.PaymentScreenWidget.extend(
	{
		init:function(parent,options)
		{
			var self=this;
			
			this._super(parent,options);
			this.line_click_handler = function(event){
                var node = this;
                self.pos.get('selectedOrder').curr_input_selected=false;
                while(node && !node.classList.contains('paymentline')){
                    node = node.parentNode;
                }
                if(node){
                    self.pos.get('selectedOrder').selectPaymentline(node.line);
                }
            };
		},
		findWithAttr: function(array, attr, value) 
		{
		    for(var i = 0; i < array.length; i += 1) 
		    {
		        if(array[i][attr] === value) 
		            return i;
		    }
		},
		
		format_foreign: function(amount,currency,precision)
		{
            var decimals = currency.decimals;
            
            if (precision && (typeof this.pos.dp[precision]) !== undefined) {
                decimals = this.pos.dp[precision];
            }
            if (typeof amount === 'number') {
                amount = round_di(amount,decimals).toFixed(decimals);
                amount = openerp.instances[this.session.name].web.format_value(round_di(amount, decimals), { type: 'float', digits: [69, decimals]});
            }

            if (currency.position === 'after') {
                return amount + ' ' + (currency.symbol || '');
            } else {
                return (currency.symbol || '') + ' ' + amount;
            }
        },
        
        set_foreign_values: function()
		{
			var self=this;
			var currentOrder=self.pos.get('selectedOrder');
			
			var currency_id=currentOrder.foreign_currency.id;
			var name=currentOrder.foreign_currency.name;
			var rate_silent=currentOrder.foreign_currency.rate_silent;
			var decimals=currentOrder.foreign_currency.decimals;
			
			if (self.pos.config.display_conversion)
				// '1 '+self.pos.currency.name+' = '+
				self.$('#conversion_rate').html('Cambio de ' + name + ' = ' + rate_silent + ' '); 
						
			
			self.$('#currency_value_label').html('Total en '+ name + ':');
			self.$('#foreign_input_label').html('Pagado en '+ name + ':');
			self.$('#currency_value').html(self.format_foreign(currentOrder.currency_total,currentOrder.foreign_currency));
			self.$('#foreign_change_label').html('Cambio en ' + name + ':');
			self.$('#foreign_change_value').html(self.format_foreign(0,currentOrder.foreign_currency));
		},
		
		show: function()
		{
            this._super();
            var self = this;
            if (self.pos.config.multi_currency_enable)
        	{
            	currentOrder=self.pos.get('selectedOrder');
            	self.$('#curr_input').focus(function(e){
            		if (this.value!='')
            			$(this).select();
            		if(self.numpad_state){
                        self.numpad_state.reset();
                    }
            		currentOrder.curr_input_selected=true;
            		
            		e.stopImmediatePropagation();
        		});
	            self.$('#toggle_multi_currency').change(function(e)
	    		{
	            	if (self.pos.currency_list.length==0)
	        		{
		            	self.pos_widget.screen_selector.show_popup('error',{
	                        message: 'No Foreign Currency found !',
	                        comment: 'No foreign currencies have been defined. Either set the parameter to fetch from master or define them manually in the POS session configuration.'
	                    });
		            	return false;
	        		}

	            	currentOrder.multi_currency_checked=self.$('#toggle_multi_currency').prop("checked");
	    			if (currentOrder.multi_currency_checked)
    				{
	    				self.$('#multi_currency').show();
		            	self.$('#foreign_change_div').show();
	    				self.$('#curr_input').focus();
	    				if (self.$('#curr_input').val()!='')
	    					self.$('#curr_input').select();
	    				currentOrder.curr_input_selected=true;
	    				if(self.numpad_state){
	                        self.numpad_state.reset();
	                    }
    				}
	    			else
    				{
	    				self.$('#multi_currency').hide();
	            		self.$('#foreign_change_div').hide();
	            		currentOrder.curr_input_selected=false;
	    				self.focus_selected_line();
    				}

	    			e.stopImmediatePropagation();
	    		});
	            
	            self.$('#toggle_multi_currency').prop("checked",currentOrder.multi_currency_checked);
	            
	            if(currentOrder.multi_currency_checked && currentOrder.foreign_currency)
	        	{
		            self.$('#curr_input').trigger('keyup');
	        	}
	            var foreign_decimals=currentOrder.foreign_currency.decimals;
	            var foreign_currency_rate=currentOrder.foreign_currency.rate_silent;
	            // Modificacion
				currentOrder.currency_total=round_di(currentOrder.getTotalTaxIncluded()/foreign_currency_rate,foreign_decimals).toFixed(foreign_decimals);
	            
	            self.set_foreign_values();
	            if (currentOrder.currency_paid==0)
	            	self.$('#curr_input').val('');
	            else
	            	self.$('#curr_input').val(currentOrder.currency_paid);
	            
	            self.$('#curr_input').keyup(function(e)
				{
					currentOrder.currency_paid=self.$('#curr_input').val();
					var line = currentOrder.selected_paymentline;
					if (line==undefined)
					{
						self.pos_widget.screen_selector.show_popup('error',{
	                        message: 'No Payment Line selected !',
	                        comment: 'Please selected the payment line you would like the converted currency to display'
	                    });
						return false;
					}
					converted_value=round_di(this.value*currentOrder.foreign_currency.rate_silent,self.pos.currency.decimals).toFixed(self.pos.currency.decimals);
					line.set_amount(converted_value);
					self.$('.paymentline.selected input').val(converted_value);
					
					e.stopImmediatePropagation();
				});
	            
	            self.$("#currency_selection").change(function(e)
				{
					var currentOrder=self.pos.get('selectedOrder');
					var selected_currency=parseInt($(this).val());
					
					selected_id=self.findWithAttr(self.pos.currency_list, 'id', selected_currency);
					currentOrder.foreign_currency=$.extend({}, self.pos.currency_list[selected_id]);
					
					var foreign_currency_rate=currentOrder.foreign_currency.rate_silent;

					currentOrder.currency_total=round_di(currentOrder.getTotalTaxIncluded()/foreign_currency_rate,foreign_decimals).toFixed(foreign_decimals);
					self.$('#curr_input').val(0);
					
					var line = currentOrder.selected_paymentline;
					if (line==undefined)
					{
						self.$('.paymentline input').val(0);
						return false;
					}
					line.set_amount(0);
					self.$('.paymentline.selected input').val(0);
					
					self.set_foreign_values();
					
					e.stopImmediatePropagation();
				});
	            
	            self.$("#currency_selection").val(currentOrder.foreign_currency.id);
	            self.$('#toggle_multi_currency').trigger('change');
        	}
		},
		
		add_paymentline: function(line){
			this._super(line);
			this.pos.get('selectedOrder').curr_input_selected=false;
		},
		
        set_value: function(val) {
        	
        	var self=this;
        	var curr_input_selected=this.pos.get('selectedOrder').curr_input_selected;
        	if (curr_input_selected)
        	{
        		var foreign_decimals=currentOrder.foreign_currency.decimals;
        		value=round_di(val,foreign_decimals).toFixed(foreign_decimals);
        		self.$('#curr_input').val(value);
	            self.$('#curr_input').trigger('keyup');
        	}
        	else
        	{
	            var selected_line =this.pos.get('selectedOrder').selected_paymentline;
	            if(selected_line){
	                selected_line.set_amount(val);
	                selected_line.node.querySelector('input').value = selected_line.amount.toFixed(2);
	            }
        	}
        },
		
		update_payment_summary: function()
		{
			this._super();
			
			var self=this;
			var currentOrder=self.pos.get('selectedOrder');
			
			if(self.pos.config.multi_currency_enable && currentOrder.foreign_currency)
			{
				var paidTotal = currentOrder.getPaidTotal();
	            var dueTotal = currentOrder.getTotalTaxIncluded();
	            var remaining = dueTotal > paidTotal ? dueTotal - paidTotal : 0;
	            var change = paidTotal > dueTotal ? paidTotal - dueTotal : 0;
				
				var fc=currentOrder.foreign_currency;
				var rate=fc.rate_silent;
				var decimals=fc.decimals;

				var converted_value=round_di(change/rate,decimals).toFixed(decimals);
				
				currentOrder.currency_change=converted_value;
				self.$('#foreign_change_value').html(self.format_foreign(converted_value,fc));
			}
		},
		
		get_currency_selection:function()
		{
			var self=this;
			var currentOrder=this.pos.get('selectedOrder');
			return currentOrder.pos.currency_list[0];
		},
	});
}