[IMP] snailmail: adapt reports for snailmail

In order to ease the integration with the snailmail posting service provider,
We will generate specific reports with a layout that fits their
criteria.
In short,
* we specify the postition of the recipient's address on the
document
* we force the A4 format

This also support the din5008 type B report.

8 files changed, 102 insertions, 7 deletions

diff --git a/addons/snailmail/__manifest__.py b/addons/snailmail/__manifest__.py
index 5435f816013..463832ce6b9 100644
--- a/addons/snailmail/__manifest__.py
+++ b/addons/snailmail/__manifest__.py
@@ -10,6 +10,7 @@ Allows users to send documents by post
     'depends': ['iap', 'mail'],
     'data': [
         'data/snailmail_data.xml',
+        'views/report_assets.xml',
         'views/res_config_settings_views.xml',
         'views/snailmail_views.xml',
         'security/ir.model.access.csv',
diff --git a/addons/snailmail/models/__init__.py b/addons/snailmail/models/__init__.py
index ee0d4f4704c..cbf1ce99ac5 100644
--- a/addons/snailmail/models/__init__.py
+++ b/addons/snailmail/models/__init__.py
@@ -3,3 +3,4 @@
 from . import res_company
 from . import res_config_settings
 from . import snailmail_letter
+from . import ir_actions_report
\ No newline at end of file
diff --git a/addons/snailmail/models/ir_actions_report.py b/addons/snailmail/models/ir_actions_report.py
new file mode 100644
index 00000000000..59c7487d804
--- /dev/null
+++ b/addons/snailmail/models/ir_actions_report.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+
+from odoo import models, fields, api, _
+
+
+class IrActionsReport(models.Model):
+    _inherit = 'ir.actions.report'
+
+    @api.model
+    def _get_rendering_context(self, docids, data):
+        res = super(IrActionsReport, self)._get_rendering_context(docids, data)
+        #  Add snailmail_layout if specified in the context
+        if self.env.context.get('snailmail_layout'):
+            res.update({'snailmail_layout': True})
+        return res
+
+    @api.model
+    def get_paperformat(self):
+        # force the right format (euro/A4) when sending letters, only if we are not using the l10n_DE layout
+        res = super(IrActionsReport, self).get_paperformat()
+        if self.env.context.get('snailmail_layout') and res != self.env.ref('l10n_de.paperformat_euro_din', False):
+            paperformat_id = self.env.ref('base.paperformat_euro')
+            return paperformat_id
+        else:
+            return res
diff --git a/addons/snailmail/models/snailmail_letter.py b/addons/snailmail/models/snailmail_letter.py
index 4ff996000b6..adbdb1268f5 100644
--- a/addons/snailmail/models/snailmail_letter.py
+++ b/addons/snailmail/models/snailmail_letter.py
@@ -65,7 +65,7 @@ class SnailmailLetter(models.Model):
             else:
                 report_name = 'Document'
             filename = "%s.%s" % (report_name, "pdf")
-            pdf_bin, _ = report.render_qweb_pdf(self.res_id)
+            pdf_bin, _ = report.with_context(snailmail_layout=True).render_qweb_pdf(self.res_id)
             attachment = self.env['ir.attachment'].create({
                 'name': filename,
                 'datas': base64.b64encode(pdf_bin),
@@ -160,6 +160,11 @@ class SnailmailLetter(models.Model):
             if route == 'estimate' and batch:
                 document.update(pages=1)
             else:
+                # adding the web logo from the company for future possible customization
+                if route == 'print':
+                    document.update({
+                        'company_logo': letter.company_id.logo_web,
+                    })
                 attachment = letter._fetch_attachment()
                 if attachment:
                     document.update({
@@ -172,6 +177,10 @@ class SnailmailLetter(models.Model):
                         'state': 'error',
                         })
                     continue
+                if letter.report_template == self.env.ref('l10n_de.external_layout_din5008', False):
+                    document.update({
+                        'rightaddress': 0,
+                    })
             documents.append(document)
 
         return {
diff --git a/addons/snailmail/static/src/scss/snailmail_external_layout_asset.scss b/addons/snailmail/static/src/scss/snailmail_external_layout_asset.scss
new file mode 100644
index 00000000000..be7331a9b61
--- /dev/null
+++ b/addons/snailmail/static/src/scss/snailmail_external_layout_asset.scss
@@ -0,0 +1,32 @@
+/* Generic report layouts*/
+.header {
+    height: 200px;
+}
+.article>.page {
+    > h1, > h2, > h3 {
+        width: 50%;
+    }
+}
+.article {
+    > .address.row {
+        padding-top: 95px;
+    }
+    > .page {
+        margin-top:-20px;
+    }
+}
+
+/*l10n_de_din layout*/
+.din {
+    .invoice_address {
+        top: 27.7mm !important;
+    }
+    &.article {
+        .page {
+            top: 18.46mm !important;
+        }
+    }
+    &.o_background_footer {
+        top: -8mm !important;
+    }
+}
diff --git a/addons/snailmail/views/report_assets.xml b/addons/snailmail/views/report_assets.xml
new file mode 100644
index 00000000000..e73de6ed3d4
--- /dev/null
+++ b/addons/snailmail/views/report_assets.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <template id="report_assets_snailmail">
+        <t t-call="web._assets_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/snailmail/static/src/scss/snailmail_external_layout_asset.scss"/>
+    </template>
+    <template id="report_layout" inherit_id="web.report_layout">
+        <xpath expr="//head" position="inside">
+            <t t-if="env.context.get('snailmail_layout')" t-call-assets="snailmail.report_assets_snailmail"/>
+        </xpath>
+    </template>
+    <template id="minimal_layout" inherit_id="web.minimal_layout">
+        <xpath expr="//head" position="inside">
+            <t t-if="env.context.get('snailmail_layout')" t-call-assets="snailmail.report_assets_snailmail"/>
+        </xpath>
+    </template>
+</odoo>
diff --git a/addons/web/views/report_templates.xml b/addons/web/views/report_templates.xml
index ad3c2498d3e..4e26bd1e9a7 100644
--- a/addons/web/views/report_templates.xml
+++ b/addons/web/views/report_templates.xml
@@ -164,7 +164,7 @@
     <template id="address_layout">
         <t t-set="colclass" t-value="('col-md-5' if report_type == 'html' else 'col-5') + ' ml-auto'"/>
         <t t-if="address">
-            <div class="row">
+            <div class="address row">
                 <t t-if="information_block">
                     <t t-set="colclass" t-value="'col-5 offset-1'"/>
                     <div name="information_block" class="col-6">
@@ -179,7 +179,8 @@
     </template>
 
     <template id="external_layout_background">
-        <div class="header o_background_header">
+        <div class="header">
+            <div class="o_background_header">
             <div class="float-right">
                 <h3 class="mt0 text-right" t-field="company.report_header"/>
             </div>
@@ -192,6 +193,7 @@
                     t-options='{"widget": "contact", "fields": ["address"], "no_marker": true}'/>
             </div>
             <div class="clearfix mb8"/>
+            </div>
         </div>
 
         <div class="article o_report_layout_background" t-att-data-oe-model="o and o._name" t-att-data-oe-id="o and o.id">
@@ -219,7 +221,8 @@
     </template>
 
     <template id="external_layout_boxed">
-        <div class="header o_boxed_header">
+        <div class="header">
+            <div class="o_boxed_header">
             <div class="row mb8">
                 <div class="col-6">
                     <img t-if="company.logo" t-att-src="'data:image/png;base64,%s' % to_text(company.logo)" alt="Logo"/>
@@ -232,6 +235,7 @@
                     </div>
                 </div>
             </div>
+            </div>
         </div>
 
         <div class="article o_report_layout_boxed" t-att-data-oe-model="o and o._name" t-att-data-oe-id="o and o.id">
@@ -256,7 +260,8 @@
     </template>
 
     <template id="external_layout_clean">
-        <div class="header o_clean_header">
+        <div class="header">
+            <div class="o_clean_header">
             <div class="row">
                 <div class="col-6">
                     <img t-if="company.logo" t-att-src="'data:image/png;base64,%s' % to_text(company.logo)" alt="Logo"/>
@@ -271,6 +276,7 @@
                     </ul>
                 </div>
             </div>
+            </div>
         </div>
 
         <div class="article o_report_layout_clean"  t-att-data-oe-model="o and o._name" t-att-data-oe-id="o and o.id">
diff --git a/odoo/addons/base/models/ir_actions_report.py b/odoo/addons/base/models/ir_actions_report.py
index dfed8cedd0a..16257c836ac 100644
--- a/odoo/addons/base/models/ir_actions_report.py
+++ b/odoo/addons/base/models/ir_actions_report.py
@@ -196,6 +196,10 @@ class IrActionsReport(models.Model):
         return wkhtmltopdf_state
 
     @api.model
+    def get_paperformat(self):
+        return self.paperformat_id or self.env.user.company_id.paperformat_id
+
+    @api.model
     def _build_wkhtmltopdf_args(
             self,
             paperformat_id,
@@ -358,7 +362,7 @@ class IrActionsReport(models.Model):
         :param set_viewport_size: Enable a viewport sized '1024x1280' or '1280x1024' depending of landscape arg.
         :return: Content of the pdf as a string
         '''
-        paperformat_id = self.paperformat_id or self.env.user.company_id.paperformat_id
+        paperformat_id = self.get_paperformat()
 
         # Build the base command args for wkhtmltopdf bin
         command_args = self._build_wkhtmltopdf_args(
@@ -666,7 +670,7 @@ class IrActionsReport(models.Model):
 
         if self.attachment and set(res_ids) != set(html_ids):
             raise UserError(_("The report's template '%s' is wrong, please contact your administrator. \n\n"
-                "Can not separate file to save as attachment because the report's template does not contains the attributes 'data-model' and 'data-id' on the div with 'page' classname.") %  self.name)
+                "Can not separate file to save as attachment because the report's template does not contains the attributes 'data-oe-model' and 'data-oe-id' on the div with 'article' classname.") %  self.name)
 
         pdf_content = self._run_wkhtmltopdf(
             bodies,