[ADD] report_qweb_weasyprint_renderer

fixes OCA#254

report_qweb_weasyprint_renderer/README.rst

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+========================
+Weasyprint QWEB renderer
+========================
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Freporting--engine-lightgray.png?logo=github
+    :target: https://github.com/OCA/reporting-engine/tree/12.0/report_qweb_weasyprint_renderer
+    :alt: OCA/reporting-engine
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/reporting-engine-12-0/reporting-engine-12-0-report_qweb_weasyprint_renderer
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
+    :target: https://runbot.odoo-community.org/runbot/143/12.0
+    :alt: Try me on Runbot
+
+|badge1| |badge2| |badge3| |badge4| |badge5| 
+
+This module allows you to use `weasyprint <https://weasyprint.org>`_ to render PDFs, which allows for more print related HTML features than using Odoo's standard wkhtmltopdf.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Usage
+=====
+
+To use this module, you need to set ``qweb_pdf_engine`` to ``weasyprint``::
+
+   <record id="demo_report" model="ir.actions.report">
+       <field name="qweb_pdf_engine">weasyprint</field>
+   </record>
+
+Known issues / Roadmap
+======================
+
+* add a compatibility layer to replace wkhtmltopdf
+* support paper formats
+* add some sensible templates for weasyprint specific internal and external layouts
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/reporting-engine/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/reporting-engine/issues/new?body=module:%20report_qweb_weasyprint_renderer%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+~~~~~~~
+
+* Therp BV
+
+Contributors
+~~~~~~~~~~~~
+
+* Holger Brunn <[email protected]>
+
+Other credits
+~~~~~~~~~~~~~
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+* `weasyprint <https://weasyprint.org>`_
+
+Maintainers
+~~~~~~~~~~~
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+This module is part of the `OCA/reporting-engine <https://github.com/OCA/reporting-engine/tree/12.0/report_qweb_weasyprint_renderer>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

report_qweb_weasyprint_renderer/__init__.py

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+# Copyright 2018 Therp BV <https://therp.nl>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+from . import models

report_qweb_weasyprint_renderer/__manifest__.py

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+# Copyright 2018 Therp BV <https://therp.nl>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+{
+    "name": "Weasyprint QWEB renderer",
+    "version": "12.0.1.0.0",
+    "author": "Therp BV,Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "category": "Reporting",
+    "summary": "Use WeasyPrint to create PDFs",
+    "depends": [
+        'report_qweb_custom_renderer',
+        'web',
+    ],
+    "demo": [
+        "demo/report.xml",
+    ],
+    "data": [
+        'views/templates.xml',
+    ],
+    "external_dependencies": {
+        'python': ['weasyprint'],
+    },
+}

report_qweb_weasyprint_renderer/demo/report.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <template id="view_demo_report_qweb">
+        <html>
+            <head>
+                <style type="text/css">
+                    @page {
+                        size: A4;
+                        padding: 20px;
+                        @top-center {
+                            content: '<t t-esc="env.user.name" /> - ' string(title);
+                        }
+                        @bottom-center {
+                            content: counter(page) ' of ' counter(pages);
+                        }
+                    }
+                    h1 {
+                        string-set: title content();
+                        page-break-before: always;
+                    }
+                    h1:first-of-type {
+                        page-break-before: avoid;
+                    }
+                    .desc {
+                        white-space: pre-line;
+                        font-family: monospace;
+                    }
+                    .index {
+                        list-style: none;
+                        padding-left: 0em;
+                    }
+                    .index li a {
+                        text-decoration: none;
+                        color: inherit;
+                    }
+                    .index li a::after {
+                        content: target-counter(attr(href), page);
+                        float: right;
+                    }
+                    .img {
+                        margin: .1em;
+                        float: right;
+                    }
+                </style>
+            </head>
+            <body>
+                <h1>Index</h1>
+                <ul class="index">
+                    <li t-foreach="docs" t-as="this">
+                        <a t-attf-href="#chapter{{this.id}}" t-esc="this.shortdesc" />
+                    </li>
+                </ul>
+                <t t-foreach="docs" t-as="this">
+                    <h1 t-attf-id="chapter{{this.id}}" t-esc="this.shortdesc" />
+                    <img class="img" t-attf-src="data:img/*;base64,{{this.icon_image}}" />
+                    <div class="desc" t-esc="this.description" />
+                </t>
+            </body>
+        </html>
+    </template>
+    <report id="demo_report"
+        string="WeasyPrint demo report"
+        model="ir.module.module"
+        name="report_qweb_weasyprint_renderer.view_demo_report_qweb"
+        report_type="qweb-pdf"
+    />
+    <record id="demo_report" model="ir.actions.report">
+        <field name="qweb_pdf_engine">weasyprint</field>
+    </record>
+</odoo>

report_qweb_weasyprint_renderer/models/__init__.py

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+# Copyright 2018 Therp BV <https://therp.nl>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+from . import ir_actions_report

report_qweb_weasyprint_renderer/models/ir_actions_report.py

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+# Copyright 2018 Therp BV <https://therp.nl>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+from odoo import api, fields, models
+try:
+    from weasyprint import HTML
+except ImportError:
+    HTML = None
+
+
+class IrActionsReport(models.Model):
+    _inherit = 'ir.actions.report'
+
+    qweb_pdf_engine = fields.Selection(
+        selection_add=[('weasyprint', 'WeasyPrint')],
+    )
+
+    @api.multi
+    def _render_qweb_pdf_weasyprint(self, res_ids=None, data=None):
+        data = data or {}
+        data['enable_editor'] = False,
+        context = dict(self.env.context)
+        context['qweb_pdf_engine'] = 'weasyprint'
+
+        html = self.with_context(**context).render_qweb_html(
+            res_ids, data=data
+        )[0]
+        return HTML(
+            string=html,
+            # TODO: pass a custom url fetcher to never actually use the port
+            base_url=self.env['ir.config_parameter'].get_param('report.url') or
+            self.env['ir.config_parameter'].get_param('web.base.url'),
+        ).write_pdf(), 'pdf'

report_qweb_weasyprint_renderer/readme/CONTRIBUTORS.rst

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+* Holger Brunn <[email protected]>

report_qweb_weasyprint_renderer/readme/CREDITS.rst

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+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+* `weasyprint <https://weasyprint.org>`_

report_qweb_weasyprint_renderer/readme/DESCRIPTION.rst

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+This module allows you to use `weasyprint <https://weasyprint.org>`_ to render PDFs, which allows for more print related HTML features than using Odoo's standard wkhtmltopdf.

report_qweb_weasyprint_renderer/readme/ROADMAP.rst

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+* add a compatibility layer to replace wkhtmltopdf
+* support paper formats
+* add some sensible templates for weasyprint specific internal and external layouts

report_qweb_weasyprint_renderer/readme/USAGE.rst

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+To use this module, you need to set ``qweb_pdf_engine`` to ``weasyprint``::
+
+   <record id="demo_report" model="ir.actions.report">
+       <field name="qweb_pdf_engine">weasyprint</field>
+   </record>