Hi everyone, 

I'm using Odoo 10, and I'm improving some features of calendar module.

When click on a meeting event, a popup modal will be shown with event summary and 3 buttons: "Edit", "Delete" and "Close".

I known the action popup and the view definition in calendar_views.xml. But for the buttons in popup footer, I cannot find it and how to add more button to the footer?

The calendar view:

<record id="view_calendar_event_calendar" model="ir.ui.view">

        <field name="name">calendar.event.calendar</field>

        <field name="model">calendar.event</field>

        <field name="priority" eval="2"/>

        <field name="arch" type="xml">

            <calendar string="Meetings" date_start="start" date_stop="stop" date_delay="duration" all_day="allday"

                         display="[name]" color="color_partner_id" attendee="partner_ids" avatar_model="res.partner"

                         use_contacts="True" event_open_popup="%(calendar.view_calendar_event_form_popup)s">

                <field name="name"/>

                <field name="user_id"/>

                <field name="color_partner_id"/>

                <field name="partner_ids"/>

            </calendar>

        </field>

    </record>

And the popup form view:

<record id="view_calendar_event_form_popup" model="ir.ui.view">

        <field name="name">calendar.event.form</field>

        <field name="model">calendar.event</field>

        <field name="priority" eval="2"/>

        <field name="arch" type="xml">

            <form string="Meetings">

                <field name="state" invisible="1"/>

                <field name="is_attendee" invisible="1"/>

                <field name="attendee_status" invisible="1"/>

                <group>

                    <group>

                        <field name="start_date" string="Starting at" attrs="{'invisible': [('allday','=',False)]}"/>

                        <field name="start_datetime" string="Starting at" attrs="{'invisible': [('allday','=',True)]}"/>

                        <label for="duration" attrs="{'invisible': [('allday','=',True)]}"/>

                        <div attrs="{'invisible': [('allday','=',True)]}">

                            <field name="duration" widget="float_time" class="oe_inline"/>

                            <span> hours</span>

                        </div>

                        <field name="allday" class="oe_inline" attrs="{'invisible': [('allday','=',False)]}"/>

                        <field name="partner_ids" widget="many2manyattendee" string="Attendees"/>

                    </group>

                    <group>

                        <field name="location"/>

                        <field name="categ_ids" widget="many2many_tags"/>

                        <field name="alarm_ids" widget="many2many_tags" />

                    </group>

                </group>

            </form>

        </field>

    </record>

Thank you