Add tray matrix on stock move lines

stock_location_tray/__manifest__.py

@@ -20,6 +20,7 @@
         'views/stock_location_views.xml',
         'views/stock_location_tray_type_views.xml',
         'views/stock_location_tray_templates.xml',
+        'views/stock_move_line_views.xml',
         'security/ir.model.access.csv',
     ],
     'installable': True,

stock_location_tray/models/__init__.py

@@ -1,2 +1,3 @@
 from . import stock_location
 from . import stock_location_tray_type
+from . import stock_move_line

stock_location_tray/models/stock_location.py

@@ -51,10 +51,18 @@ class StockLocation(models.Model):
     def _compute_tray_matrix(self):
         for location in self:
             if not (location.tray_type_id or location.cell_in_tray_type_id):
+                location.tray_matrix = {}
                 continue
-            location.tray_matrix = {
-                "selected": location._tray_cell_coords(),
-                "cells": location._tray_cell_matrix(),
+            location.tray_matrix = location._tray_matrix_for_widget()
+
+    def _tray_matrix_for_widget(self):
+        selected = self._tray_cell_coords()
+        cells = self._tray_cell_matrix()
+        return {
+            # x, y: position of the selected cell
+            "selected": selected,
+            # 0 is empty, 1 is not
+            "cells": cells,
         }
 
     @api.multi

stock_location_tray/models/stock_move_line.py

@@ -0,0 +1,52 @@
+# Copyright 2019 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import _, api, models
+from odoo.addons.base_sparse_field.models.fields import Serialized
+
+
+class StockMoveLine(models.Model):
+    _inherit = "stock.move.line"
+
+    tray_source_matrix = Serialized(
+        string="Source Cell", compute="_compute_tray_matrix"
+    )
+    tray_dest_matrix = Serialized(
+        string="Destination Cell", compute="_compute_tray_matrix"
+    )
+
+    @api.depends("location_id", "location_dest_id")
+    def _compute_tray_matrix(self):
+        for record in self:
+            record.tray_source_matrix = record.location_id.tray_matrix
+            record.tray_dest_matrix = record.location_dest_id.tray_matrix
+
+    def _action_show_tray(self, location_from):
+        assert location_from in ("source", "dest")
+        self.ensure_one()
+        view = self.env.ref("stock_location_tray.view_stock_move_line_tray")
+        context = self.env.context.copy()
+        if location_from == "source":
+            name = _("Source Tray")
+            context["show_source_tray"] = True
+        else:
+            name = _("Destination Tray")
+            context["show_dest_tray"] = True
+        return {
+            "name": name,
+            "type": "ir.actions.act_window",
+            "view_type": "form",
+            "view_mode": "form",
+            "res_model": "stock.move.line",
+            "views": [(view.id, "form")],
+            "view_id": view.id,
+            "target": "new",
+            "res_id": self.id,
+            "context": context,
+        }
+
+    def action_show_source_tray(self):
+        return self._action_show_tray("source")
+
+    def action_show_dest_tray(self):
+        return self._action_show_tray("dest")

stock_location_tray/readme/ROADMAP.rst

@@ -0,0 +1,5 @@
+The buttons on operations opens a view with the tray matrix to show operators
+where to pick/put goods. The issue is that Odoo allows only one modal popup
+to be open at a time. The tray matrix replaces the operations window. We have
+to find a way to prevent this. The tray matrix could be displayed through a
+tooltip maybe, if we find how to render a widget in a tooltip.

stock_location_tray/views/stock_move_line_views.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="view_stock_move_line_operation_tree" model="ir.ui.view">
+        <field name="name">stock.move.line.operations.tree.tray.type</field>
+        <field name="model">stock.move.line</field>
+        <field name="inherit_id" ref="stock.view_stock_move_line_operation_tree" />
+        <field name="arch" type="xml">
+            <field name="location_id" position="after">
+                <field name="tray_source_matrix" invisible="1"/>
+                <button name="action_show_source_tray"
+                        string="Show Source Tray"
+                        type="object" icon="fa-th"
+                        attrs="{'invisible': [('tray_source_matrix', '=', {})]}"
+                        invisible="not context.get('show_source_location')"
+                        groups="stock.group_stock_multi_locations"
+                />
+            </field>
+            <field name="location_dest_id" position="after">
+                <field name="tray_dest_matrix" invisible="1"/>
+                <button name="action_show_dest_tray"
+                        string="Show Destination Tray"
+                        type="object" icon="fa-th"
+                        attrs="{'invisible': [('tray_dest_matrix', '=', {})]}"
+                        invisible="not context.get('show_destination_location')"
+                        groups="stock.group_stock_multi_locations"
+                />
+            </field>
+        </field>
+    </record>
+
+    <record id="view_stock_move_line_tray" model="ir.ui.view">
+        <field name="name">stock.move.line.tray</field>
+        <field name="model">stock.move.line</field>
+        <field name="priority">1000</field>
+        <field name="arch" type="xml">
+            <form string="Tray" create="0" edit="0" delete="0">
+                <group name="source_tray"
+                       invisible="not context.get('show_source_tray')">
+                    <field name="location_id" readonly="1" />
+                    <field name="tray_source_matrix"
+                           widget="location_tray_matrix" />
+                </group>
+                <group name="destination_tray"
+                       invisible="not context.get('show_dest_tray')">
+                    <field name="location_dest_id" readonly="1" />
+                    <field name="tray_dest_matrix"
+                           widget="location_tray_matrix" />
+                </group>
+                <footer>
+                    <button string="Close"
+                            class="btn-secondary"
+                            special="cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+
+</odoo>