odoo/addons/wiki/wizard/wiki_show_diff_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

<!-- Create Index Form view  -->

        <record id="view_wiki_show_diff" model="ir.ui.view">
            <field name="name">Show Difference</field>
            <field name="model">wizard.wiki.history.show_diff</field>
            <field name="type">form</field>
            <field name="arch" type="xml">
              <form string="Difference">
                 <separator colspan="4" string="Notes"/>
                  <field name="file_path" colspan="4" width="300"/>
                <label string="" colspan="2" />
                <group>
                <button special="cancel" string="Close" icon="gtk-close" />
                </group>
            </form>
            </field>
        </record>

<!-- Create Index Action  -->

        <record id="action_view_wiki_show_diff" model="ir.actions.act_window">
            <field name="name">Difference</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">wizard.wiki.history.show_diff</field>
            <field name="view_type">form</field>
            <field name="view_mode">form</field>
            <field name="target">new</field>
        </record>

<!-- Create Index Action Window  -->

         <act_window id="action_view_wiki_show_diff_values"
            key2="client_action_multi" name="Difference"
            res_model="wizard.wiki.history.show_diff" src_model="wiki.wiki.history"
            view_mode="form" target="new" view_type="form" />

    </data>
</openerp>