erpnext/public/js/pos/pos.js - Clicks/Forks/ERPNext - Gitiles

 // Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 // License: GNU General Public License v3. See license.txt

 frappe.provide("erpnext.pos");

 erpnext.pos.PointOfSale = Class.extend({
 	init: function(wrapper, frm) {
 		this.wrapper = wrapper;
 		this.frm = frm;
 		this.wrapper.html(frappe.render_template("pos", {}));

 		this.check_transaction_type();
 		this.make();

 		var me = this;
 		$(this.frm.wrapper).on("refresh-fields", function() {
 			me.refresh();
 		});

 		this.wrapper.find('input.discount-amount').on("change", function() {
 			frappe.model.set_value(me.frm.doctype, me.frm.docname, "discount_amount", flt(this.value));
 		});
 	},
 	check_transaction_type: function() {
 		var me = this;

 		// Check whether the transaction is "Sales" or "Purchase"
 		if (frappe.meta.has_field(cur_frm.doc.doctype, "customer")) {
 			this.set_transaction_defaults("Customer");
 		}
 		else if (frappe.meta.has_field(cur_frm.doc.doctype, "supplier")) {
 			this.set_transaction_defaults("Supplier");
 		}
 	},
 	set_transaction_defaults: function(party) {
 		var me = this;
 		this.party = party;
 		this.price_list = (party == "Customer" ?
 			this.frm.doc.selling_price_list : this.frm.doc.buying_price_list);
 		this.price_list_field = (party == "Customer" ? "selling_price_list" : "buying_price_list");
 		this.sales_or_purchase = (party == "Customer" ? "Sales" : "Purchase");
 	},
 	make: function() {
 		this.make_party();
 		this.make_search();
 		this.make_item_list();
 	},
 	make_party: function() {
 		var me = this;
 		this.party_field = frappe.ui.form.make_control({
 			df: {
 				"fieldtype": "Link",
 				"options": this.party,
 				"label": this.party,
 				"fieldname": "pos_party",
 				"placeholder": this.party
 			},
 			parent: this.wrapper.find(".party-area"),
 			only_input: true,
 		});
 		this.party_field.make_input();
 		this.party_field.$input.on("change", function() {
 			if(!me.party_field.autocomplete_open)
 				frappe.model.set_value(me.frm.doctype, me.frm.docname,
 					me.party.toLowerCase(), this.value);
 		});
 	},
 	make_search: function() {
 		var me = this;
 		this.search = frappe.ui.form.make_control({
 			df: {
 				"fieldtype": "Data",
 				"label": "Item",
 				"fieldname": "pos_item",
 				"placeholder": "Search Item"
 			},
 			parent: this.wrapper.find(".search-area"),
 			only_input: true,
 		});
 		this.search.make_input();
 		this.search.$input.on("keypress", function() {
 			if(!me.search.autocomplete_open)
 				if(me.item_timeout)
 					clearTimeout(me.item_timeout);
 				me.item_timeout = setTimeout(function() { me.make_item_list(); }, 1000);
 		});
 	},
 	make_item_list: function() {
 		var me = this;
 		if(!this.price_list) {
 			msgprint(__("Price List not found or disabled"));
 			return;
 		}

 		me.item_timeout = null;
 		frappe.call({
 			method: 'erpnext.accounts.doctype.sales_invoice.pos.get_items',
 			args: {
 				sales_or_purchase: this.sales_or_purchase,
 				price_list: this.price_list,
 				item: this.search.$input.val()
 			},
 			callback: function(r) {
 				var $wrap = me.wrapper.find(".item-list");
 				me.wrapper.find(".item-list").empty();
 				if (r.message) {
 					if (r.message.length === 1) {
 						var item = r.message[0];
 						if (item.serial_no) {
 							me.add_to_cart(item.item_code, item.serial_no);
 							me.search.$input.val("");
 							return;

 						} else if (item.barcode) {
 							me.add_to_cart(item.item_code);
 							me.search.$input.val("");
 							return;
 						}
 					}

 					$.each(r.message, function(index, obj) {
 						$(frappe.render_template("pos_item", {
 							item_code: obj.name,
 							item_price: format_currency(obj.price_list_rate, obj.currency),
 							item_name: obj.name===obj.item_name ? "" : obj.item_name,
 							item_image: obj.image ? "url('" + obj.image + "')" : null
 						})).tooltip().appendTo($wrap);
 					});
 				}

 				// if form is local then allow this function
 				$(me.wrapper).find("div.pos-item").on("click", function() {
 					if(me.frm.doc.docstatus==0) {
 						me.add_to_cart($(this).attr("data-item-code"));
 					}
 				});
 			}
 		});
 	},
 	add_to_cart: function(item_code, serial_no) {
 		var me = this;
 		var caught = false;

 		if(!me.frm.doc[me.party.toLowerCase()] && ((me.frm.doctype == "Quotation" &&
 				me.frm.doc.quotation_to == "Customer")
 				|| me.frm.doctype != "Quotation")) {
 			msgprint(__("Please select {0} first.", [me.party]));
 			return;
 		}

 		// get no_of_items
 		var no_of_items = me.wrapper.find(".pos-bill-item").length;

 		// check whether the item is already added
 		if (no_of_items != 0) {
 			$.each(this.frm.doc["items"] || [], function(i, d) {
 				if (d.item_code == item_code) {
 					caught = true;
 					if (serial_no)
 						frappe.model.set_value(d.doctype, d.name, "serial_no", d.serial_no + '\n' + serial_no);
 					else
 						frappe.model.set_value(d.doctype, d.name, "qty", d.qty + 1);
 				}
 			});
 		}

 		// if item not found then add new item
 		if (!caught)
 			this.add_new_item_to_grid(item_code, serial_no);

 		this.refresh();
 		this.refresh_search_box();
 	},
 	add_new_item_to_grid: function(item_code, serial_no) {
 		var me = this;

 		var child = frappe.model.add_child(me.frm.doc, this.frm.doctype + " Item", "items");
 		child.item_code = item_code;
 		child.qty = 1;

 		if (serial_no)
 			child.serial_no = serial_no;

 		this.frm.script_manager.trigger("item_code", child.doctype, child.name);
 	},
 	refresh_search_box: function() {
 		var me = this;

 		// Clear Item Box and remake item list
 		if (this.search.$input.val()) {
 			this.search.set_input("");
 			this.make_item_list();
 		}
 	},
 	update_qty: function(item_code, qty) {
 		var me = this;
 		$.each(this.frm.doc["items"] || [], function(i, d) {
 			if (d.item_code == item_code) {
 				if (qty == 0) {
 					frappe.model.clear_doc(d.doctype, d.name);
 					me.refresh_grid();
 				} else {
 					frappe.model.set_value(d.doctype, d.name, "qty", qty);
 				}
 			}
 		});
 		this.refresh();
 	},
 	refresh: function() {
 		var me = this;

 		this.refresh_item_list();
 		this.refresh_fields();

 		// if form is local then only run all these functions
 		if (this.frm.doc.docstatus===0) {
 			this.call_when_local();
 		}

 		this.disable_text_box_and_button();
 		this.set_primary_action();

 		// If quotation to is not Customer then remove party
 		if (this.frm.doctype == "Quotation" && this.frm.doc.quotation_to!="Customer") {
 			this.party_field.$input.prop("disabled", true);
 		}
 	},
 	refresh_fields: function() {
 		this.party_field.set_input(this.frm.doc[this.party.toLowerCase()]);
 		this.wrapper.find('input.discount-amount').val(this.frm.doc.discount_amount);

 		this.show_items_in_item_cart();
 		this.show_taxes();
 		this.set_totals();
 	},
 	refresh_item_list: function() {
 		var me = this;
 		// refresh item list on change of price list
 		if (this.frm.doc[this.price_list_field] != this.price_list) {
 			this.price_list = this.frm.doc[this.price_list_field];
 			this.make_item_list();
 		}
 	},
 	show_items_in_item_cart: function() {
 		var me = this;
 		var $items = this.wrapper.find(".items").empty();

 		$.each(this.frm.doc.items|| [], function(i, d) {
 			$(frappe.render_template("pos_bill_item", {
 				item_code: d.item_code,
 				item_name: (d.item_name===d.item_code || !d.item_name) ? "" : ("<br>" + d.item_name),
 				qty: d.qty,
 				actual_qty: d.actual_qty,
 				projected_qty: d.projected_qty,
 				rate: format_currency(d.rate, me.frm.doc.currency),
 				amount: format_currency(d.amount, me.frm.doc.currency)
 			})).appendTo($items);
 		});

 		this.wrapper.find("input.pos-item-qty").on("focus", function() {
 			$(this).select();
 		});
 	},
 	show_taxes: function() {
 		var me = this;
 		var taxes = this.frm.doc["taxes"] || [];
 		$(this.wrapper)
 			.find(".tax-area").toggleClass("hide", (taxes && taxes.length) ? false : true)
 			.find(".tax-table").empty();

 		$.each(taxes, function(i, d) {
 			if (d.tax_amount) {
 				$(frappe.render_template("pos_tax_row", {
 					description: d.description,
 					tax_amount: format_currency(flt(d.tax_amount)/flt(me.frm.doc.conversion_rate),
 						me.frm.doc.currency)
 				})).appendTo(me.wrapper.find(".tax-table"));
 			}
 		});
 	},
 	set_totals: function() {
 		var me = this;
 		this.wrapper.find(".net-total").text(format_currency(me.frm.doc["net_total"], me.frm.doc.currency));
 		this.wrapper.find(".grand-total").text(format_currency(me.frm.doc.grand_total, me.frm.doc.currency));
 	},
 	call_when_local: function() {
 		var me = this;

 		// append quantity to the respective item after change from input box
 		$(this.wrapper).find("input.pos-item-qty").on("change", function() {
 			var item_code = $(this).parents(".pos-bill-item").attr("data-item-code");
 			me.update_qty(item_code, $(this).val());
 		});

 		// increase/decrease qty on plus/minus button
 		$(this.wrapper).find(".pos-qty-btn").on("click", function() {
 			var $item = $(this).parents(".pos-bill-item:first");
 			me.increase_decrease_qty($item, $(this).attr("data-action"));
 		});

 		this.focus();
 	},
 	focus: function() {
 		if(this.frm.doc[this.party.toLowerCase()]) {
 			this.search.$input.focus();
 		} else {
 			if(!(this.frm.doctype == "Quotation" && this.frm.doc.quotation_to!="Customer"))
 				this.party_field.$input.focus();
 		}
 	},
 	increase_decrease_qty: function($item, operation) {
 		var item_code = $item.attr("data-item-code");
 		var item_qty = cint($item.find("input.pos-item-qty").val());

 		if (operation == "increase-qty")
 			this.update_qty(item_code, item_qty + 1);
 		else if (operation == "decrease-qty" && item_qty != 0)
 			this.update_qty(item_code, item_qty - 1);
 	},
 	disable_text_box_and_button: function() {
 		var me = this;
 		// if form is submitted & cancelled then disable all input box & buttons
 		$(this.wrapper)
 			.find(".pos-qty-btn")
 			.toggle(this.frm.doc.docstatus===0);

 		$(this.wrapper).find('input, button').prop("disabled", !(this.frm.doc.docstatus===0));

 		this.wrapper.find(".pos-item-area").toggleClass("hide", me.frm.doc.docstatus!==0);

 	},
 	set_primary_action: function() {
 		var me = this;
 		if (!this.frm.pos_active) return;

 		if (this.frm.doctype == "Sales Invoice" && this.frm.doc.docstatus===0) {
 			if (!this.frm.doc.is_pos) {
 				this.frm.set_value("is_pos", 1);
 			}
 			this.frm.page.set_primary_action(__("Pay"), function() {
 				me.make_payment();
 			});
 		} else if (this.frm.doc.docstatus===1) {
 			this.frm.page.set_primary_action(__("New"), function() {
 				me.frm.pos_active = false;
 				erpnext.open_as_pos = true;
 				new_doc(me.frm.doctype);
 			});
 		}
 	},
 	refresh_delete_btn: function() {
 		$(this.wrapper).find(".remove-items").toggle($(".item-cart .warning").length ? true : false);
 	},
 	remove_selected_items: function() {
 		var me = this;
 		var selected_items = [];
 		var no_of_items = $(this.wrapper).find("#cart tbody tr").length;
 		for(var x=0; x<=no_of_items - 1; x++) {
 			var row = $(this.wrapper).find("#cart tbody tr:eq(" + x + ")");
 			if(row.attr("data-selected") == "true") {
 				selected_items.push(row.attr("id"));
 			}
 		}

 		var child = this.frm.doc["items"] || [];

 		$.each(child, function(i, d) {
 			for (var i in selected_items) {
 				if (d.item_code == selected_items[i]) {
 					frappe.model.clear_doc(d.doctype, d.name);
 				}
 			}
 		});

 		this.refresh_grid();
 	},
 	refresh_grid: function() {
 		this.frm.dirty();
 		this.frm.fields_dict["items"].grid.refresh();
 		this.frm.script_manager.trigger("calculate_taxes_and_totals");
 		this.refresh();
 	},
 	with_modes_of_payment: function(callback) {
 		var me = this;
 		if(me.modes_of_payment) {
 			callback();
 		} else {
 			me.modes_of_payment = [];
 			$.ajax("/api/resource/Mode of Payment").success(function(data) {
 				$.each(data.data, function(i, d) { me.modes_of_payment.push(d.name); });
 				callback();
 			});
 		}
 	},
 	make_payment: function() {
 		var me = this;
 		var no_of_items = this.frm.doc.items.length;

 		if (no_of_items == 0)
 			msgprint(__("Payment cannot be made for empty cart"));
 		else {

 			this.with_modes_of_payment(function() {
 				// prefer cash payment!
 				var default_mode = me.modes_of_payment.indexOf(__("Cash"))!==-1 ? __("Cash") : undefined;

 				// show payment wizard
 				var dialog = new frappe.ui.Dialog({
 					width: 400,
 					title: 'Payment',
 					fields: [
 						{fieldtype:'Currency',
 							fieldname:'total_amount', label: __('Total Amount'), read_only:1,
 							"default": me.frm.doc.grand_total, read_only: 1},
 						{fieldtype:'Select', fieldname:'mode_of_payment',
 							label: __('Mode of Payment'),
 							options: me.modes_of_payment.join('\n'), reqd: 1,
 							"default": default_mode},
 						{fieldtype:'Currency', fieldname:'paid_amount', label:__('Amount Paid'),
 							reqd:1, "default": me.frm.doc.grand_total, hidden: 1, change: function() {
 								var values = dialog.get_values();
 								dialog.set_value("change", Math.round(values.paid_amount - values.total_amount));
 								dialog.get_input("change").trigger("change");

 							}},
 						{fieldtype:'Currency', fieldname:'change', label: __('Change'),
 							"default": 0.0, hidden: 1, change: function() {
 								var values = dialog.get_values();
 								var write_off_amount = (flt(values.paid_amount) - flt(values.change)) - values.total_amount;
 								dialog.get_field("write_off_amount").toggle(write_off_amount);
 								dialog.set_value("write_off_amount", write_off_amount);
 							}
 						},
 						{fieldtype:'Currency', fieldname:'write_off_amount',
 							label: __('Write Off'), default: 0.0, hidden: 1},
 					]
 				});
 				me.dialog = dialog;
 				dialog.show();

 				// make read only
 				dialog.get_input("total_amount").prop("disabled", true);
 				dialog.get_input("write_off_amount").prop("disabled", true);

 				// toggle amount paid and change
 				dialog.get_input("mode_of_payment").on("change", function() {
 					var is_cash = dialog.get_value("mode_of_payment") === __("Cash");
 					dialog.get_field("paid_amount").toggle(is_cash);
 					dialog.get_field("change").toggle(is_cash);

 					if (is_cash && !dialog.get_value("change")) {
 						// set to nearest 5
 						var paid_amount = 5 * Math.ceil(dialog.get_value("total_amount") / 5);
 						dialog.set_value("paid_amount", paid_amount);
 						dialog.get_input("paid_amount").trigger("change");
 					}
 				}).trigger("change");

 				me.set_pay_button(dialog);
 			});
 		}
 	},
 	set_pay_button: function(dialog) {
 		var me = this;
 		dialog.set_primary_action(__("Pay"), function() {
 			var values = dialog.get_values();
 			console.log(values);
 			var is_cash = values.mode_of_payment === __("Cash");
 			if (!is_cash) {
 				values.write_off_amount = values.change = 0.0;
 				values.paid_amount = values.total_amount;
 			}
 			me.frm.set_value("mode_of_payment", values.mode_of_payment);

 			var paid_amount = flt((flt(values.paid_amount) - flt(values.change)) / me.frm.doc.conversion_rate, precision("paid_amount"));
 			me.frm.set_value("paid_amount", paid_amount);

 			// specifying writeoff amount here itself, so as to avoid recursion issue
 			me.frm.set_value("write_off_amount", me.frm.doc.base_grand_total - paid_amount);
 			me.frm.set_value("outstanding_amount", 0);

 			me.frm.savesubmit(this);
 			dialog.hide();
 			me.refresh();
 		})

 	}
 });

 erpnext.pos.make_pos_btn = function(frm) {
 	// Show POS button only if it is enabled from features setup
 	if (cint(sys_defaults.fs_pos_view)!==1 || frm.doctype==="Material Request") {
 		return;
 	}

 	if(!frm.pos_btn) {
 		frm.pos_btn = frm.page.add_action_icon("icon-th", function() {
 			erpnext.pos.toggle(frm) });
 	}

 	if(erpnext.open_as_pos && !frm.pos_active) {
 		erpnext.pos.toggle(frm);
 	}
 }

 erpnext.pos.toggle = function(frm, show) {
 	// Check whether it is Selling or Buying cycle
 	var price_list = frappe.meta.has_field(cur_frm.doc.doctype, "selling_price_list") ?
 		frm.doc.selling_price_list : frm.doc.buying_price_list;

 	if((show===true && frm.pos_active) || (show===false && !frm.pos_active)) {
 		return;
 	}

 	if(show && !price_list) {
 		frappe.throw(__("Please select Price List"));
 	}

 	// make pos
 	if(!frm.pos) {
 		var wrapper = frm.page.add_view("pos", "<div>");
 		frm.pos = new erpnext.pos.PointOfSale(wrapper, frm);
 	}

 	// toggle view
 	frm.page.set_view(frm.pos_active ? "main" : "pos");
 	frm.pos_active = !frm.pos_active;

 	frm.toolbar.current_status = null;
 	frm.refresh();

 	// refresh
 	if(frm.pos_active) {
 		frm.pos.refresh();
 	}
 }
	// Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
	// License: GNU General Public License v3. See license.txt

	frappe.provide("erpnext.pos");

	erpnext.pos.PointOfSale = Class.extend({
	init: function(wrapper, frm) {
	this.wrapper = wrapper;
	this.frm = frm;
	this.wrapper.html(frappe.render_template("pos", {}));

	this.check_transaction_type();
	this.make();

	var me = this;
	$(this.frm.wrapper).on("refresh-fields", function() {
	me.refresh();
	});

	this.wrapper.find('input.discount-amount').on("change", function() {
	frappe.model.set_value(me.frm.doctype, me.frm.docname, "discount_amount", flt(this.value));
	});
	},
	check_transaction_type: function() {
	var me = this;

	// Check whether the transaction is "Sales" or "Purchase"
	if (frappe.meta.has_field(cur_frm.doc.doctype, "customer")) {
	this.set_transaction_defaults("Customer");
	}
	else if (frappe.meta.has_field(cur_frm.doc.doctype, "supplier")) {
	this.set_transaction_defaults("Supplier");
	}
	},
	set_transaction_defaults: function(party) {
	var me = this;
	this.party = party;
	this.price_list = (party == "Customer" ?
	this.frm.doc.selling_price_list : this.frm.doc.buying_price_list);
	this.price_list_field = (party == "Customer" ? "selling_price_list" : "buying_price_list");
	this.sales_or_purchase = (party == "Customer" ? "Sales" : "Purchase");
	},
	make: function() {
	this.make_party();
	this.make_search();
	this.make_item_list();
	},
	make_party: function() {
	var me = this;
	this.party_field = frappe.ui.form.make_control({
	df: {
	"fieldtype": "Link",
	"options": this.party,
	"label": this.party,
	"fieldname": "pos_party",
	"placeholder": this.party
	},
	parent: this.wrapper.find(".party-area"),
	only_input: true,
	});
	this.party_field.make_input();
	this.party_field.$input.on("change", function() {
	if(!me.party_field.autocomplete_open)
	frappe.model.set_value(me.frm.doctype, me.frm.docname,
	me.party.toLowerCase(), this.value);
	});
	},
	make_search: function() {
	var me = this;
	this.search = frappe.ui.form.make_control({
	df: {
	"fieldtype": "Data",
	"label": "Item",
	"fieldname": "pos_item",
	"placeholder": "Search Item"
	},
	parent: this.wrapper.find(".search-area"),
	only_input: true,
	});
	this.search.make_input();
	this.search.$input.on("keypress", function() {
	if(!me.search.autocomplete_open)
	if(me.item_timeout)
	clearTimeout(me.item_timeout);
	me.item_timeout = setTimeout(function() { me.make_item_list(); }, 1000);
	});
	},
	make_item_list: function() {
	var me = this;
	if(!this.price_list) {
	msgprint(__("Price List not found or disabled"));
	return;
	}

	me.item_timeout = null;
	frappe.call({
	method: 'erpnext.accounts.doctype.sales_invoice.pos.get_items',
	args: {
	sales_or_purchase: this.sales_or_purchase,
	price_list: this.price_list,
	item: this.search.$input.val()
	},
	callback: function(r) {
	var $wrap = me.wrapper.find(".item-list");
	me.wrapper.find(".item-list").empty();
	if (r.message) {
	if (r.message.length === 1) {
	var item = r.message[0];
	if (item.serial_no) {
	me.add_to_cart(item.item_code, item.serial_no);
	me.search.$input.val("");
	return;

	} else if (item.barcode) {
	me.add_to_cart(item.item_code);
	me.search.$input.val("");
	return;
	}
	}

	$.each(r.message, function(index, obj) {
	$(frappe.render_template("pos_item", {
	item_code: obj.name,
	item_price: format_currency(obj.price_list_rate, obj.currency),
	item_name: obj.name===obj.item_name ? "" : obj.item_name,
	item_image: obj.image ? "url('" + obj.image + "')" : null
	})).tooltip().appendTo($wrap);
	});
	}

	// if form is local then allow this function
	$(me.wrapper).find("div.pos-item").on("click", function() {
	if(me.frm.doc.docstatus==0) {
	me.add_to_cart($(this).attr("data-item-code"));
	}
	});
	}
	});
	},
	add_to_cart: function(item_code, serial_no) {
	var me = this;
	var caught = false;

	if(!me.frm.doc[me.party.toLowerCase()] && ((me.frm.doctype == "Quotation" &&
	me.frm.doc.quotation_to == "Customer")
	\|\| me.frm.doctype != "Quotation")) {
	msgprint(__("Please select {0} first.", [me.party]));
	return;
	}

	// get no_of_items
	var no_of_items = me.wrapper.find(".pos-bill-item").length;

	// check whether the item is already added
	if (no_of_items != 0) {
	$.each(this.frm.doc["items"] \|\| [], function(i, d) {
	if (d.item_code == item_code) {
	caught = true;
	if (serial_no)
	frappe.model.set_value(d.doctype, d.name, "serial_no", d.serial_no + '\n' + serial_no);
	else
	frappe.model.set_value(d.doctype, d.name, "qty", d.qty + 1);
	}
	});
	}

	// if item not found then add new item
	if (!caught)
	this.add_new_item_to_grid(item_code, serial_no);

	this.refresh();
	this.refresh_search_box();
	},
	add_new_item_to_grid: function(item_code, serial_no) {
	var me = this;

	var child = frappe.model.add_child(me.frm.doc, this.frm.doctype + " Item", "items");
	child.item_code = item_code;
	child.qty = 1;

	if (serial_no)
	child.serial_no = serial_no;

	this.frm.script_manager.trigger("item_code", child.doctype, child.name);
	},
	refresh_search_box: function() {
	var me = this;

	// Clear Item Box and remake item list
	if (this.search.$input.val()) {
	this.search.set_input("");
	this.make_item_list();
	}
	},
	update_qty: function(item_code, qty) {
	var me = this;
	$.each(this.frm.doc["items"] \|\| [], function(i, d) {
	if (d.item_code == item_code) {
	if (qty == 0) {
	frappe.model.clear_doc(d.doctype, d.name);
	me.refresh_grid();
	} else {
	frappe.model.set_value(d.doctype, d.name, "qty", qty);
	}
	}
	});
	this.refresh();
	},
	refresh: function() {
	var me = this;

	this.refresh_item_list();
	this.refresh_fields();

	// if form is local then only run all these functions
	if (this.frm.doc.docstatus===0) {
	this.call_when_local();
	}

	this.disable_text_box_and_button();
	this.set_primary_action();

	// If quotation to is not Customer then remove party
	if (this.frm.doctype == "Quotation" && this.frm.doc.quotation_to!="Customer") {
	this.party_field.$input.prop("disabled", true);
	}
	},
	refresh_fields: function() {
	this.party_field.set_input(this.frm.doc[this.party.toLowerCase()]);
	this.wrapper.find('input.discount-amount').val(this.frm.doc.discount_amount);

	this.show_items_in_item_cart();
	this.show_taxes();
	this.set_totals();
	},
	refresh_item_list: function() {
	var me = this;
	// refresh item list on change of price list
	if (this.frm.doc[this.price_list_field] != this.price_list) {
	this.price_list = this.frm.doc[this.price_list_field];
	this.make_item_list();
	}
	},
	show_items_in_item_cart: function() {
	var me = this;
	var $items = this.wrapper.find(".items").empty();

	$.each(this.frm.doc.items\|\| [], function(i, d) {
	$(frappe.render_template("pos_bill_item", {
	item_code: d.item_code,
	item_name: (d.item_name===d.item_code \|\| !d.item_name) ? "" : ("<br>" + d.item_name),
	qty: d.qty,
	actual_qty: d.actual_qty,
	projected_qty: d.projected_qty,
	rate: format_currency(d.rate, me.frm.doc.currency),
	amount: format_currency(d.amount, me.frm.doc.currency)
	})).appendTo($items);
	});

	this.wrapper.find("input.pos-item-qty").on("focus", function() {
	$(this).select();
	});
	},
	show_taxes: function() {
	var me = this;
	var taxes = this.frm.doc["taxes"] \|\| [];
	$(this.wrapper)
	.find(".tax-area").toggleClass("hide", (taxes && taxes.length) ? false : true)
	.find(".tax-table").empty();

	$.each(taxes, function(i, d) {
	if (d.tax_amount) {
	$(frappe.render_template("pos_tax_row", {
	description: d.description,
	tax_amount: format_currency(flt(d.tax_amount)/flt(me.frm.doc.conversion_rate),
	me.frm.doc.currency)
	})).appendTo(me.wrapper.find(".tax-table"));
	}
	});
	},
	set_totals: function() {
	var me = this;
	this.wrapper.find(".net-total").text(format_currency(me.frm.doc["net_total"], me.frm.doc.currency));
	this.wrapper.find(".grand-total").text(format_currency(me.frm.doc.grand_total, me.frm.doc.currency));
	},
	call_when_local: function() {
	var me = this;

	// append quantity to the respective item after change from input box
	$(this.wrapper).find("input.pos-item-qty").on("change", function() {
	var item_code = $(this).parents(".pos-bill-item").attr("data-item-code");
	me.update_qty(item_code, $(this).val());
	});

	// increase/decrease qty on plus/minus button
	$(this.wrapper).find(".pos-qty-btn").on("click", function() {
	var $item = $(this).parents(".pos-bill-item:first");
	me.increase_decrease_qty($item, $(this).attr("data-action"));
	});

	this.focus();
	},
	focus: function() {
	if(this.frm.doc[this.party.toLowerCase()]) {
	this.search.$input.focus();
	} else {
	if(!(this.frm.doctype == "Quotation" && this.frm.doc.quotation_to!="Customer"))
	this.party_field.$input.focus();
	}
	},
	increase_decrease_qty: function($item, operation) {
	var item_code = $item.attr("data-item-code");
	var item_qty = cint($item.find("input.pos-item-qty").val());

	if (operation == "increase-qty")
	this.update_qty(item_code, item_qty + 1);
	else if (operation == "decrease-qty" && item_qty != 0)
	this.update_qty(item_code, item_qty - 1);
	},
	disable_text_box_and_button: function() {
	var me = this;
	// if form is submitted & cancelled then disable all input box & buttons
	$(this.wrapper)
	.find(".pos-qty-btn")
	.toggle(this.frm.doc.docstatus===0);

	$(this.wrapper).find('input, button').prop("disabled", !(this.frm.doc.docstatus===0));

	this.wrapper.find(".pos-item-area").toggleClass("hide", me.frm.doc.docstatus!==0);

	},
	set_primary_action: function() {
	var me = this;
	if (!this.frm.pos_active) return;

	if (this.frm.doctype == "Sales Invoice" && this.frm.doc.docstatus===0) {
	if (!this.frm.doc.is_pos) {
	this.frm.set_value("is_pos", 1);
	}
	this.frm.page.set_primary_action(__("Pay"), function() {
	me.make_payment();
	});
	} else if (this.frm.doc.docstatus===1) {
	this.frm.page.set_primary_action(__("New"), function() {
	me.frm.pos_active = false;
	erpnext.open_as_pos = true;
	new_doc(me.frm.doctype);
	});
	}
	},
	refresh_delete_btn: function() {
	$(this.wrapper).find(".remove-items").toggle($(".item-cart .warning").length ? true : false);
	},
	remove_selected_items: function() {
	var me = this;
	var selected_items = [];
	var no_of_items = $(this.wrapper).find("#cart tbody tr").length;
	for(var x=0; x<=no_of_items - 1; x++) {
	var row = $(this.wrapper).find("#cart tbody tr:eq(" + x + ")");
	if(row.attr("data-selected") == "true") {
	selected_items.push(row.attr("id"));
	}
	}

	var child = this.frm.doc["items"] \|\| [];

	$.each(child, function(i, d) {
	for (var i in selected_items) {
	if (d.item_code == selected_items[i]) {
	frappe.model.clear_doc(d.doctype, d.name);
	}
	}
	});

	this.refresh_grid();
	},
	refresh_grid: function() {
	this.frm.dirty();
	this.frm.fields_dict["items"].grid.refresh();
	this.frm.script_manager.trigger("calculate_taxes_and_totals");
	this.refresh();
	},
	with_modes_of_payment: function(callback) {
	var me = this;
	if(me.modes_of_payment) {
	callback();
	} else {
	me.modes_of_payment = [];
	$.ajax("/api/resource/Mode of Payment").success(function(data) {
	$.each(data.data, function(i, d) { me.modes_of_payment.push(d.name); });
	callback();
	});
	}
	},
	make_payment: function() {
	var me = this;
	var no_of_items = this.frm.doc.items.length;

	if (no_of_items == 0)
	msgprint(__("Payment cannot be made for empty cart"));
	else {

	this.with_modes_of_payment(function() {
	// prefer cash payment!
	var default_mode = me.modes_of_payment.indexOf(__("Cash"))!==-1 ? __("Cash") : undefined;

	// show payment wizard
	var dialog = new frappe.ui.Dialog({
	width: 400,
	title: 'Payment',
	fields: [
	{fieldtype:'Currency',
	fieldname:'total_amount', label: __('Total Amount'), read_only:1,
	"default": me.frm.doc.grand_total, read_only: 1},
	{fieldtype:'Select', fieldname:'mode_of_payment',
	label: __('Mode of Payment'),
	options: me.modes_of_payment.join('\n'), reqd: 1,
	"default": default_mode},
	{fieldtype:'Currency', fieldname:'paid_amount', label:__('Amount Paid'),
	reqd:1, "default": me.frm.doc.grand_total, hidden: 1, change: function() {
	var values = dialog.get_values();
	dialog.set_value("change", Math.round(values.paid_amount - values.total_amount));
	dialog.get_input("change").trigger("change");

	}},
	{fieldtype:'Currency', fieldname:'change', label: __('Change'),
	"default": 0.0, hidden: 1, change: function() {
	var values = dialog.get_values();
	var write_off_amount = (flt(values.paid_amount) - flt(values.change)) - values.total_amount;
	dialog.get_field("write_off_amount").toggle(write_off_amount);
	dialog.set_value("write_off_amount", write_off_amount);
	}
	},
	{fieldtype:'Currency', fieldname:'write_off_amount',
	label: __('Write Off'), default: 0.0, hidden: 1},
	]
	});
	me.dialog = dialog;
	dialog.show();

	// make read only
	dialog.get_input("total_amount").prop("disabled", true);
	dialog.get_input("write_off_amount").prop("disabled", true);

	// toggle amount paid and change
	dialog.get_input("mode_of_payment").on("change", function() {
	var is_cash = dialog.get_value("mode_of_payment") === __("Cash");
	dialog.get_field("paid_amount").toggle(is_cash);
	dialog.get_field("change").toggle(is_cash);

	if (is_cash && !dialog.get_value("change")) {
	// set to nearest 5
	var paid_amount = 5 * Math.ceil(dialog.get_value("total_amount") / 5);
	dialog.set_value("paid_amount", paid_amount);
	dialog.get_input("paid_amount").trigger("change");
	}
	}).trigger("change");

	me.set_pay_button(dialog);
	});
	}
	},
	set_pay_button: function(dialog) {
	var me = this;
	dialog.set_primary_action(__("Pay"), function() {
	var values = dialog.get_values();
	console.log(values);
	var is_cash = values.mode_of_payment === __("Cash");
	if (!is_cash) {
	values.write_off_amount = values.change = 0.0;
	values.paid_amount = values.total_amount;
	}
	me.frm.set_value("mode_of_payment", values.mode_of_payment);

	var paid_amount = flt((flt(values.paid_amount) - flt(values.change)) / me.frm.doc.conversion_rate, precision("paid_amount"));
	me.frm.set_value("paid_amount", paid_amount);

	// specifying writeoff amount here itself, so as to avoid recursion issue
	me.frm.set_value("write_off_amount", me.frm.doc.base_grand_total - paid_amount);
	me.frm.set_value("outstanding_amount", 0);

	me.frm.savesubmit(this);
	dialog.hide();
	me.refresh();
	})

	}
	});

	erpnext.pos.make_pos_btn = function(frm) {
	// Show POS button only if it is enabled from features setup
	if (cint(sys_defaults.fs_pos_view)!==1 \|\| frm.doctype==="Material Request") {
	return;
	}

	if(!frm.pos_btn) {
	frm.pos_btn = frm.page.add_action_icon("icon-th", function() {
	erpnext.pos.toggle(frm) });
	}

	if(erpnext.open_as_pos && !frm.pos_active) {
	erpnext.pos.toggle(frm);
	}
	}

	erpnext.pos.toggle = function(frm, show) {
	// Check whether it is Selling or Buying cycle
	var price_list = frappe.meta.has_field(cur_frm.doc.doctype, "selling_price_list") ?
	frm.doc.selling_price_list : frm.doc.buying_price_list;

	if((show===true && frm.pos_active) \|\| (show===false && !frm.pos_active)) {
	return;
	}

	if(show && !price_list) {
	frappe.throw(__("Please select Price List"));
	}

	// make pos
	if(!frm.pos) {
	var wrapper = frm.page.add_view("pos", "<div>");
	frm.pos = new erpnext.pos.PointOfSale(wrapper, frm);
	}

	// toggle view
	frm.page.set_view(frm.pos_active ? "main" : "pos");
	frm.pos_active = !frm.pos_active;

	frm.toolbar.current_status = null;
	frm.refresh();

	// refresh
	if(frm.pos_active) {
	frm.pos.refresh();
	}
	}