[IMP] hr: add Department org chart

Add an organisation chart on the Department form view.

task-3071039

closes odoo/odoo#106005

Related: odoo/enterprise#34184
Signed-off-by: Kevin Baptiste <kba@odoo.com>

addons/hr/models/hr_department.py

@@ -134,3 +134,29 @@ class Department(models.Model):
 
     def get_children_department_ids(self):
         return self.env['hr.department'].search([('id', 'child_of', self.ids)])
+
+    def get_department_hierarchy(self):
+        if not self:
+            return {}
+
+        hierarchy = {
+            'parent': {
+                'id': self.parent_id.id,
+                'name': self.parent_id.name,
+                'employees': self.parent_id.total_employee,
+            } if self.parent_id else False,
+            'self': {
+                'id': self.id,
+                'name': self.name,
+                'employees': self.total_employee,
+            },
+            'children': [
+                {
+                    'id': child.id,
+                    'name': child.name,
+                    'employees': child.total_employee
+                } for child in self.child_ids
+            ]
+        }
+
+        return hierarchy

addons/hr/static/src/components/department_chart/department_chart.js

@@ -0,0 +1,43 @@
+/** @odoo-module */
+
+import { registry } from '@web/core/registry';
+import { useService } from "@web/core/utils/hooks";
+
+import { standardWidgetProps } from "@web/views/widgets/standard_widget_props";
+
+const { onWillStart, useState, onWillUpdateProps, Component } = owl;
+
+export class DepartmentChart extends Component {
+    setup() {
+        super.setup();
+
+        this.action = useService('action');
+        this.orm = useService('orm');
+        this.state = useState({
+            hierarchy: {}
+        });
+        onWillStart(async () => await this.fetchHierarchy(this.props.record.data.id));
+
+        onWillUpdateProps(async (nextProps) => {
+            await this.fetchHierarchy(nextProps.record.data.id);
+        });
+    }
+
+    async fetchHierarchy(departmentId) {
+        this.state.hierarchy = await this.orm.call('hr.department', 'get_department_hierarchy', [departmentId]);
+    }
+
+    openDepartmentEmployees(departmentId) {
+        this.action.doAction('hr.act_employee_from_department', {
+            additionalContext: {
+                'active_id': departmentId,
+            }
+        });
+    }
+}
+DepartmentChart.template = 'hr.DepartmentChart';
+DepartmentChart.props = {
+    ...standardWidgetProps,
+};
+
+registry.category("view_widgets").add("hr_department_chart", DepartmentChart);

addons/hr/static/src/components/department_chart/department_chart.scss

@@ -0,0 +1,19 @@
+.o_widget_hr_department_chart {
+    display: flex;
+    justify-content: flex-end;
+
+    .o_hr_department_chart {
+        .o_hr_department_chart_self {
+            .department_name {
+                font-weight: bold;
+            }
+        }
+
+        @include media-breakpoint-up(sm) {
+            width: 50%;
+        }
+        @include media-breakpoint-down(md) {
+            flex-grow: 1;
+        }
+    }
+}

addons/hr/static/src/components/department_chart/department_chart.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates id="template" xml:space="preserve">
+    <t t-name="hr.DepartmentChart" owl="1">
+        <div class="o_hr_department_chart">
+            <div class="o_horizontal_separator mb-3 text-uppercase fw-bolder small">Department Organization</div>
+            <t t-if="state.hierarchy.self">
+                <div class="o_hr_department_chart_parent">
+                    <t t-set="dept" t-value="state.hierarchy.parent"/>
+                    <t t-set="hideTree" t-value="true"/>
+                    <t t-call="hr.DepartmentChart.Department"/>
+                </div>
+
+                <div t-att-class="state.hierarchy.parent?'ms-4':''">
+                    <div class="o_hr_department_chart_self">
+                        <t t-set="dept" t-value="state.hierarchy.self"/>
+                        <t t-set="hideTree" t-value="!state.hierarchy.parent"/>
+                        <t t-call="hr.DepartmentChart.Department"/>
+                    </div>
+
+                    <t t-set="hideTree" t-value="false"/>
+                    <div class="o_hr_department_chart_children ms-4">
+                        <t t-foreach="state.hierarchy.children" t-as="dept" t-key="dept.name">
+                            <t t-call="hr.DepartmentChart.Department"/>
+                        </t>
+                    </div>
+                </div>
+            </div>
+        </t>
+    </t>
+
+    <t t-name="hr.DepartmentChart.Department" owl="1">
+        <t t-if="dept">
+            <div t-attf-class="#{hideTree?'':'o_treeEntry'} mb-0 ps-4">
+                <div class="d-flex justify-content-between">
+                    <span class="department_name ms-2">
+                        <t t-esc="dept.name"/>
+                    </span>
+                    <a class="badge rounded-pill bg-white border" role="button"
+                        title="Show employees"
+                        t-on-click.prevent="() => this.openDepartmentEmployees(dept.id)">
+                        <t t-esc="dept.employees"/>
+                    </a>
+                </div>
+            </div>
+        </t>
+    </t>
+</templates>

addons/hr/views/hr_department_views.xml

@@ -18,11 +18,16 @@
                         </div>
                         <widget name="web_ribbon" title="Archived" bg_color="bg-danger" attrs="{'invisible': [('active', '=', True)]}"/>
                         <field name="active" invisible="1"/>
-                        <group col="4">
-                            <field name="name"/>
-                            <field name="manager_id"/>
-                            <field name="parent_id"/>
-                            <field name="company_id" options="{'no_create': True}" groups="base.group_multi_company"/>
+                        <group>
+                            <group>
+                                <field name="name"/>
+                                <field name="manager_id"/>
+                                <field name="parent_id"/>
+                                <field name="company_id" options="{'no_create': True}" groups="base.group_multi_company"/>
+                            </group>
+                            <div>
+                                <widget name="hr_department_chart"/>
+                            </div>
                         </group>
                     </sheet>
                     <div class="oe_chatter">