Rewrote JavaScript to be compatible with EcmaScript < 6. Clarified js docs in version_compare.js

different bindto model function depending on wagtail version

.travis.yml

@@ -1,34 +1,45 @@
 language: python
 python:
-  - "3.6"
+  - "3.8"
 env:
-  - WAGTAIL="wagtail>=2.4,<2.5" DB=sqlite
+  - WAGTAIL="wagtail>=2.7,<2.8" DB=sqlite
 matrix:
   include:
   # Latest Wagtail version
-  - env: WAGTAIL="wagtail>=2.4,<2.5" DB=sqlite
-  - env: WAGTAIL="wagtail>=2.4,<2.5" DB=postgres
-  - env: WAGTAIL="wagtail>=2.4,<2.5" DB=mysql
+  - env: WAGTAIL="wagtail>=2.7,<2.8" DB=postgres
+  - env: WAGTAIL="wagtail>=2.7,<2.8" DB=mysql
+  - python: "3.8"
+  - python: "3.7"
   - python: "3.6"
   - python: "3.5"
-  - python: "3.4"
   # Past Wagtail versions
-  - python: "3.6"
+  - python: "3.7"
+    env: WAGTAIL="wagtail>=2.6,<2.7"
+  - python: "3.7"
+    env: WAGTAIL="wagtail>=2.5,<2.6"
+  - python: "3.4" # Wagtail 2.5 was the last to support python 3.4
+    env: WAGTAIL="wagtail>=2.5,<2.6"
+  - python: "3.7"
+    env: WAGTAIL="wagtail>=2.4,<2.5"
+  - python: "3.7"
     env: WAGTAIL="wagtail>=2.3,<2.4"
-  - python: "3.6"
+  - python: "3.7"
     env: WAGTAIL="wagtail>=2.2,<2.3"
-  - python: "3.6"
+  - python: "3.7"
     env: WAGTAIL="wagtail>=2.1,<2.2"
-  - python: "3.6"
+  - python: "3.7"
     env: WAGTAIL="wagtail>=2.0,<2.1"
   - python: "2.7"  # Wagtail 1.13 was the latest tested against 2.7
     env: WAGTAIL="wagtail>=1.13,<1.14"
-  - python: "3.6"
+  - python: "3.7"
     env: WAGTAIL="wagtail>=1.13,<1.14"
   - python: "2.7"
     env: WAGTAIL="wagtail>=1.12,<1.13"
-  - python: "3.6"
+  - python: "3.7"
     env: WAGTAIL="wagtail>=1.12,<1.13"
+services:
+  - mysql
+  - postgresql
 addons:
   postgresql: "9.4"
 before_script:
@@ -37,7 +48,7 @@ before_script:
 install:
   - pip install --upgrade -q pip setuptools
   - if [[ $DB == mysql ]] && [[ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]]; then pip install -q mysql-python; elif [[ $DB == mysql ]] && [[ ${TRAVIS_PYTHON_VERSION:0:1} == "3" ]]; then pip install -q mysqlclient; fi
-  - if [[ $DB == postgres ]]; then pip install -q 'psycopg2-binary<2.8'; fi
+  - if [[ $DB == postgres ]]; then pip install -q 'psycopg2-binary'; fi
   - pip install $WAGTAIL
   - pip install -e .
 script:

AUTHORS.rst

@@ -22,6 +22,7 @@ Contributors
 * Raphael Grill
 * Tom Dyson
 * Tim Tan
+* Benedikt Willi
 
 
 .. _Django-modeltranslation: https://github.com/deschler/django-modeltranslation

MANIFEST.in

@@ -3,5 +3,6 @@ recursive-include docs *.rst conf.py Makefile make.bat
 recursive-include wagtail_modeltranslation/static *
 recursive-include wagtail_modeltranslation/management *
 recursive-include wagtail_modeltranslation/templatetags *
+recursive-include wagtail_modeltranslation/templates *
 global-exclude *.pyc
 global-exclude *.DS_Store

PKG-INFO

@@ -1,6 +1,6 @@
 Metadata-Version: 1.0
 Name: wagtail-modeltranslation
-Version: 0.10.1
+Version: 0.10.6
 Summary: Translates Wagtail CMS models using a registration approach.
 Home-page: https://github.com/infoportugal/wagtail-modeltranslation
 Author: InfoPortugal S.A.

setup.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.10.2
+current_version = 0.10.6
 commit = True
 tag = True
 

setup.py

@@ -44,7 +44,8 @@ setup(
         'wagtail_modeltranslation.migrate.management',
         'wagtail_modeltranslation.migrate.management.commands'],
     package_data={'wagtail_modeltranslation': ['static/wagtail_modeltranslation/css/*.css',
-                                               'static/wagtail_modeltranslation/js/*.js']},
+                                               'static/wagtail_modeltranslation/js/*.js',
+                                               'templates/*.html']},
     install_requires=['wagtail>=1.12', 'django-modeltranslation>=0.13'],
     classifiers=[
         'Programming Language :: Python',
@@ -54,6 +55,7 @@ setup(
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Operating System :: OS Independent',
         'Environment :: Web Environment',
         'Intended Audience :: Developers',

tox.ini

@@ -1,5 +1,17 @@
 [tox]
 envlist =
+    py38-2.7.X,
+    py37-2.7.X,
+    py36-2.7.X,
+    py35-2.7.X,
+    py34-2.7.X,
+    py37-2.6.X,
+    py36-2.6.X,
+    py35-2.6.X,
+    py37-2.5.X,
+    py36-2.5.X,
+    py35-2.5.X,
+    py34-2.5.X,
     py37-2.4.X,
     py36-2.4.X,
     py35-2.4.X,
@@ -29,6 +41,61 @@ envlist =
 commands =
     {envpython} runtests.py
 
+[testenv:py38-2.7.X]
+basepython = python3.8
+deps =
+    wagtail>=2.7,<2.8
+
+[testenv:py37-2.7.X]
+basepython = python3.7
+deps =
+    wagtail>=2.7,<2.8
+
+[testenv:py36-2.7.X]
+basepython = python3.6
+deps =
+    wagtail>=2.7,<2.8
+
+[testenv:py35-2.7.X]
+basepython = python3.5
+deps =
+    wagtail>=2.7,<2.8
+
+[testenv:py37-2.6.X]
+basepython = python3.7
+deps =
+    wagtail>=2.6,<2.7
+
+[testenv:py36-2.6.X]
+basepython = python3.6
+deps =
+    wagtail>=2.6,<2.7
+
+[testenv:py35-2.6.X]
+basepython = python3.5
+deps =
+    wagtail>=2.6,<2.7
+
+[testenv:py37-2.5.X]
+basepython = python3.7
+deps =
+    wagtail>=2.5,<2.6
+
+[testenv:py36-2.5.X]
+basepython = python3.6
+deps =
+    wagtail>=2.5,<2.6
+
+[testenv:py35-2.5.X]
+basepython = python3.5
+deps =
+    wagtail>=2.5,<2.6
+
+[testenv:py34-2.5.X]
+basepython = python3.4
+deps =
+    wagtail>=2.5,<2.6
+
 [testenv:py37-2.4.X]
 basepython = python3.7
 deps =

wagtail_modeltranslation/__init__.py

@@ -1,3 +1,3 @@
 # coding: utf-8
-__version__ = '0.10.2'
+__version__ = '0.10.6'
 default_app_config = 'wagtail_modeltranslation.apps.ModeltranslationConfig'

wagtail_modeltranslation/patch_wagtailadmin.py

@@ -45,6 +45,7 @@ except ImportError:
     from wagtail.wagtailsnippets.views.snippets import SNIPPET_EDIT_HANDLERS
 from wagtail_modeltranslation.settings import CUSTOM_SIMPLE_PANELS, CUSTOM_COMPOSED_PANELS, TRANSLATE_SLUGS
 from wagtail_modeltranslation.utils import compare_class_tree_depth
+from wagtail import VERSION
 
 logger = logging.getLogger('wagtail.core')
 
@@ -140,8 +141,11 @@ class WagtailTranslator(object):
             translation_registered_fields = translator.get_options_for_model(model).fields
             panels = filter(lambda field: field.field_name not in translation_registered_fields, panels)
             edit_handler = ObjectList(panels)
+            if VERSION < (2, 5):
+                SNIPPET_EDIT_HANDLERS[model] = edit_handler.bind_to_model(model)
+            else:
+                SNIPPET_EDIT_HANDLERS[model] = edit_handler.bind_to(model=model)
 
-            SNIPPET_EDIT_HANDLERS[model] = edit_handler.bind_to_model(model)
 
     def _patch_panels(self, panels_list, related_model=None):
         """

wagtail_modeltranslation/patch_wagtailadmin_forms.py

@@ -0,0 +1,107 @@
+# coding: utf-8
+
+from django import forms
+from django.conf import settings
+from django.core.exceptions import ValidationError
+from django.utils.translation import ugettext as _
+from django.utils.translation import ungettext
+
+try:
+    from wagtail.core.models import Page
+    from wagtail.admin import widgets
+    from wagtail.admin.forms.pages import CopyForm
+except ImportError:
+    from wagtail.wagtailcore.models import Page
+    from wagtail.wagtailadmin import widgets
+    from wagtail.wagtailadmin.forms import CopyForm
+
+
+class PatchedCopyForm(CopyForm):
+    def __init__(self, *args, **kwargs):
+        # CopyPage must be passed a 'page' kwarg indicating the page to be copied
+        self.page = kwargs.pop('page')
+        self.user = kwargs.pop('user', None)
+        can_publish = kwargs.pop('can_publish')
+        super(CopyForm, self).__init__(*args, **kwargs)
+
+        #self.fields['new_title'] = forms.CharField(initial=self.page.title, label=_("New title"))
+        for code, name in settings.LANGUAGES:
+            locale_title = "new_title_{}".format(code)
+            locale_label = "{} [{}]".format(_("New title"), code)
+            self.fields[locale_title] = forms.CharField(initial=self.page.title, label=locale_label)
+
+        #self.fields['new_slug'] = forms.SlugField(initial=self.page.slug, label=_("New slug"))
+        for code, name in settings.LANGUAGES:
+            locale_title = "new_slug_{}".format(code)
+            locale_label = "{} [{}]".format(_("New slug"), code)
+            self.fields[locale_title] = forms.SlugField(initial=self.page.slug, label=locale_label)
+
+        self.fields['new_parent_page'] = forms.ModelChoiceField(
+            initial=self.page.get_parent(),
+            queryset=Page.objects.all(),
+            widget=widgets.AdminPageChooser(can_choose_root=True, user_perms='copy_to'),
+            label=_("New parent page"),
+            help_text=_("This copy will be a child of this given parent page.")
+        )
+        pages_to_copy = self.page.get_descendants(inclusive=True)
+        subpage_count = pages_to_copy.count() - 1
+        if subpage_count > 0:
+            self.fields['copy_subpages'] = forms.BooleanField(
+                required=False, initial=True, label=_("Copy subpages"),
+                help_text=ungettext(
+                    "This will copy %(count)s subpage.",
+                    "This will copy %(count)s subpages.",
+                    subpage_count) % {'count': subpage_count})
+
+        if can_publish:
+            pages_to_publish_count = pages_to_copy.live().count()
+            if pages_to_publish_count > 0:
+                # In the specific case that there are no subpages, customise the field label and help text
+                if subpage_count == 0:
+                    label = _("Publish copied page")
+                    help_text = _("This page is live. Would you like to publish its copy as well?")
+                else:
+                    label = _("Publish copies")
+                    help_text = ungettext(
+                        "%(count)s of the pages being copied is live. Would you like to publish its copy?",
+                        "%(count)s of the pages being copied are live. Would you like to publish their copies?",
+                        pages_to_publish_count) % {'count': pages_to_publish_count}
+
+                self.fields['publish_copies'] = forms.BooleanField(
+                    required=False, initial=True, label=label, help_text=help_text
+                )
+
+    def clean(self):
+        cleaned_data = super(CopyForm, self).clean()
+
+        # Make sure the slug isn't already in use
+        # slug = cleaned_data.get('new_slug')
+
+        # New parent page given in form or parent of source, if parent_page is empty
+        parent_page = cleaned_data.get('new_parent_page') or self.page.get_parent()
+
+        # check if user is allowed to create a page at given location.
+        if not parent_page.permissions_for_user(self.user).can_add_subpage():
+            raise ValidationError({
+                'new_parent_page': _("You do not have permission to copy to page \"%(page_title)s\"") % {'page_title': parent_page.get_admin_display_title()}
+            })
+
+        # Count the pages with the same slug within the context of our copy's parent page
+        for code, name in settings.LANGUAGES:
+            locale_slug = "new_slug_{}".format(code)
+            slug = cleaned_data.get(locale_slug)
+
+            param = 'slug_' + code
+            query = {param: slug}
+            if slug and parent_page.get_children().filter(**query).count():
+                raise ValidationError({
+                    locale_slug: _("This slug is already in use within the context of its parent page \"%s\"" % parent_page)
+                })
+
+        # Don't allow recursive copies into self
+        if cleaned_data.get('copy_subpages') and (self.page == parent_page or parent_page.is_descendant_of(self.page)):
+            raise ValidationError({
+                'new_parent_page': _("You cannot copy a page into itself when copying subpages")
+            })
+
+        return cleaned_data

wagtail_modeltranslation/static/wagtail_modeltranslation/js/copy_stream_fields.js

@@ -7,22 +7,47 @@ $(document).ready(function(){
 	for (var i = 0; i < allStreamFields.length; i++) {
 		//Current Field with all content
 		var currentStreamField = allStreamFields[i];
-		//Current Field header
-		var header = $(currentStreamField).children('h2')[0];
-		//Search for the input field so that we can get is id to know the field's name.
-		var streamFieldDiv = $(currentStreamField).find('div.sequence-container.sequence-type-stream')[0];
-		var fieldInfos = $(streamFieldDiv).children('input')[0].id.split('-')[0];
-    var lastUnderscore = fieldInfos.lastIndexOf("_");
-    var fieldName = fieldInfos.substring(0, lastUnderscore);
-    var fieldLang = fieldInfos.substring(lastUnderscore + 1, fieldInfos.length);
+		//Current field header
+    var header;
+    //Current field name
+    var fieldLang = "";
+    //Current field language
+    var fieldName = "";
+    if(versionCompare(WAGTAIL_VERSION,'2.6.0', {zeroExtend: true})===-1){
+      // Wagtail < 2.6 
+      header = $(currentStreamField).children('h2')[0];
+      //Search for the input field so that we can get is id to know the field's name.
+      var streamFieldDiv = $(currentStreamField).find('div.sequence-container.sequence-type-stream')[0];
+      var fieldInfos = $(streamFieldDiv).find('input')[0].id.split('-')[0];
+      var lastUnderscore = fieldInfos.lastIndexOf("_");
+      fieldName = fieldInfos.substring(0, lastUnderscore);
+      fieldLang = fieldInfos.substring(lastUnderscore + 1, fieldInfos.length);
+    } else if(versionCompare(WAGTAIL_VERSION,'2.7.0', {zeroExtend: true})===-1){
+      // Wagtail < 2.7 
+      header = $(currentStreamField).children('.title-wrapper')[0];
+      //Search for the input field so that we can get is id to know the field's name.
+      var streamFieldDiv = $(currentStreamField).find('div.sequence-container.sequence-type-stream')[0];
+      var fieldInfos = $(streamFieldDiv).find('input')[0].id.split('-')[0];
+      var lastUnderscore = fieldInfos.lastIndexOf("_");
+      fieldName = fieldInfos.substring(0, lastUnderscore);
+      fieldLang = fieldInfos.substring(lastUnderscore + 1, fieldInfos.length);
+    } else {
+      // Wagtail >= 2.7 
+      header = $(currentStreamField).children('.title-wrapper')[0];
+      //Search for the input field so that we can get is id to know the field's name.
+      var streamFieldDiv = $(currentStreamField).find('.field-content')[0];
+      var fieldInfos = $(streamFieldDiv).find('input')[0].id.split('-')[0];
+      var lastUnderscore = fieldInfos.lastIndexOf("_");
+      fieldName = fieldInfos.substring(0, lastUnderscore);
+      fieldLang = fieldInfos.substring(lastUnderscore + 1, fieldInfos.length);
+    }
 		//The cycle to create the buttons for copy each language field
-		var copyContentString = 'Copy content from';
-		header.innerHTML += '<div class="translation-field-copy-wrapper">'+copyContentString+': </div>';
+		header.innerHTML += '<div class="translation-field-copy-wrapper">Copy content from: </div>';
 		for (var j = 0; j < langs.length; j++) {
 			if (fieldLang != langs[j]) {
 				var currentFieldID = fieldName + '_' + fieldLang;
 				var targetFieldID = fieldName + '_' + langs [j];
-				$(header).children('.translation-field-copy-wrapper')[0].innerHTML += '<button class="translation-field-copy" current-lang-code="'+ currentFieldID +'" data-lang-code="'+ targetFieldID +'">'+langs[j]+'</button>';
+				$(header).children('.translation-field-copy-wrapper')[0].innerHTML += '<button class="button translation-field-copy" current-lang-code="' + currentFieldID + '" data-lang-code="' + targetFieldID + '">' + langs[j] + '</button>';
 			};
 		};
 	};
@@ -55,11 +80,11 @@ function requestCopyField(originID, targetID) {
 	})
 	.done(function(data) {
 		/* Put the html data in the targetID field */
-		var wrapperDiv = $("#"+targetID+"-count").parents('.input')[0];
+		var wrapperDiv = $('#' + targetID + '-count').parents('.input')[0];
 		$(wrapperDiv).html(data);
 	})
 	.fail(function(error) {
-		console.log("wagtail-modeltranslation error: %s", error.responseText);
+		console.log('wagtail-modeltranslation error: ' + error.responseText);
 	})
 
 }

wagtail_modeltranslation/static/wagtail_modeltranslation/js/version_compare.js

@@ -0,0 +1,78 @@
+/**
+ * Compares two software version numbers (e.g. "1.7.1" or "1.2b").
+ *
+ * This function was born in http://stackoverflow.com/a/6832721.
+ *
+ * @param {string} v1 The first version to be compared.
+ * @param {string} v2 The second version to be compared.
+ * @param {object} [options] Optional flags that affect comparison behavior.
+ * @param {boolean} [options.lexicographical = false] Switch to compare version strings lexicographically instead of naturally.
+ * @param {boolean} [options.zeroExtend = false] Switch to pad version with "zero" parts instead to be considered smaller.
+ * <ul>
+ *     <li>
+ *         <tt>lexicographical: true</tt> compares each part of the version strings lexicographically instead of
+ *         naturally; this allows suffixes such as "b" or "dev" but will cause "1.10" to be considered smaller than
+ *         "1.2".
+ *     </li>
+ *     <li>
+ *         <tt>zeroExtend: true</tt> changes the result if one version string has less parts than the other. In
+ *         this case the shorter string will be padded with "zero" parts instead of being considered smaller.
+ *     </li>
+ * </ul>
+ * @returns {number|NaN}
+ * <ul>
+ *    <li>0 if the versions are equal</li>
+ *    <li>a negative integer (-1) if v1 < v2</li>
+ *    <li>a positive integer (1) if v1 > v2</li>
+ *    <li>NaN if either version string is in the wrong format</li>
+ * </ul>
+ *
+ * @copyright by Jon Papaioannou (["john", "papaioannou"].join(".") + "@gmail.com")
+ * @license This function is in the public domain. Do what you want with it, no strings attached.
+ */
+function versionCompare(v1, v2, options) {
+  var lexicographical = options && options.lexicographical,
+      zeroExtend = options && options.zeroExtend,
+      v1parts = v1.split('.'),
+      v2parts = v2.split('.');
+
+  function isValidPart(x) {
+      return (lexicographical ? /^\d+[A-Za-z]*$/ : /^\d+$/).test(x);
+  }
+
+  if (!v1parts.every(isValidPart) || !v2parts.every(isValidPart)) {
+      return NaN;
+  }
+
+  if (zeroExtend) {
+      while (v1parts.length < v2parts.length) v1parts.push("0");
+      while (v2parts.length < v1parts.length) v2parts.push("0");
+  }
+
+  if (!lexicographical) {
+      v1parts = v1parts.map(Number);
+      v2parts = v2parts.map(Number);
+  }
+
+  for (var i = 0; i < v1parts.length; ++i) {
+      if (v2parts.length == i) {
+          return 1;
+      }
+
+      if (v1parts[i] == v2parts[i]) {
+          continue;
+      }
+      else if (v1parts[i] > v2parts[i]) {
+          return 1;
+      }
+      else {
+          return -1;
+      }
+  }
+
+  if (v1parts.length != v2parts.length) {
+      return -1;
+  }
+
+  return 0;
+}

wagtail_modeltranslation/templates/modeltranslation_copy.html

@@ -0,0 +1,31 @@
+{% extends "wagtailadmin/base.html" %}
+{% load i18n %}
+{% block titletag %}{% blocktrans with title=page.get_admin_display_title %}Copy {{ title }}{% endblocktrans %}{% endblock %}
+{% block content %}
+    {% trans "Copy" as copy_str %}
+    {% include "wagtailadmin/shared/header.html" with title=copy_str subtitle=page.get_admin_display_title icon="doc-empty-inverse" %}
+
+    <div class="nice-padding">
+        <form action="{% url 'wagtailadmin_pages:copy' page.id %}" method="POST" novalidate>
+            {% csrf_token %}
+            <input type="hidden" name="next" value="{{ next }}" />
+
+            <ul class="fields">
+                {% for field in form.visible_fields %}
+             	    {% include "wagtailadmin/shared/field_as_li.html" with field=field %}
+             	{% endfor %}
+
+                {% if form.copy_subpages %}
+                    {% include "wagtailadmin/shared/field_as_li.html" with field=form.copy_subpages %}
+                {% endif %}
+            </ul>
+
+            <input type="submit" value="{% trans 'Copy this page' %}" class="button">
+        </form>
+    </div>
+{% endblock %}
+
+{% block extra_js %}
+    {{ block.super }}
+    {% include "wagtailadmin/pages/_editor_js.html" %}
+{% endblock %}

wagtail_modeltranslation/wagtail_hooks.py

@@ -2,24 +2,35 @@
 
 import json
 
+from django.core.exceptions import PermissionDenied
 from six import iteritems
-
 from django.conf import settings
 from django.conf.urls import url
 from django.http import HttpResponse, QueryDict
+from django.shortcuts import redirect, render
+from django.templatetags.static import static
 from django.utils.html import escape, format_html, format_html_join
+from django.utils.translation import ugettext as _
 from django.views.decorators.csrf import csrf_exempt
 from wagtail_modeltranslation import settings as wmt_settings
 from modeltranslation import settings as mt_settings
 
+from .patch_wagtailadmin_forms import PatchedCopyForm
+
 try:
     from wagtail.core import hooks
     from wagtail.core.models import Page
     from wagtail.core.rich_text.pages import PageLinkHandler
+    from wagtail.core import __version__ as WAGTAIL_VERSION
+    from wagtail.admin import messages
+    from wagtail.admin.views.pages import get_valid_next_url_from_request
 except ImportError:
     from wagtail.wagtailcore import hooks
     from wagtail.wagtailcore.models import Page
     from wagtail.wagtailcore.rich_text import PageLinkHandler
+    from wagtail.wagtailcore import __version__ as WAGTAIL_VERSION
+    from wagtail.wagtailadmin import messages
+    from wagtail.wagtailadmin.views.pages import get_valid_next_url_from_request
 
 
 @hooks.register('insert_editor_js')
@@ -28,9 +39,9 @@ def translated_slugs():
         'wagtail_modeltranslation/js/wagtail_translated_slugs.js',
     ]
 
-    js_includes = format_html_join('\n', '<script src="{0}{1}"></script>', (
-        (settings.STATIC_URL, filename) for filename in js_files)
-                                   )
+    js_includes = format_html_join('\n', '<script src="{0}"></script>', (
+        (static(filename),) for filename in js_files)
+    )
 
     lang_codes = []
     for lang in settings.LANGUAGES:
@@ -120,21 +131,26 @@ def streamfields_translation_copy():
 
     # includes the javascript file in the html file
     js_files = [
+        'wagtail_modeltranslation/js/version_compare.js',
         'wagtail_modeltranslation/js/copy_stream_fields.js',
     ]
 
-    js_includes = format_html_join('\n', '<script src="{0}{1}"></script>', (
-        (settings.STATIC_URL, filename) for filename in js_files)
-                                   )
+    js_includes = format_html_join('\n', '<script src="{0}"></script>', (
+        (static(filename),) for filename in js_files)
+    )
 
-    return js_includes
+    js_wagtail_version = """
+<script>
+    var WAGTAIL_VERSION='{wagtail_version}';
+</script>
+    """.format(wagtail_version=WAGTAIL_VERSION)
+    return format_html(js_wagtail_version) + js_includes
 
 
 @hooks.register('insert_editor_css')
 def modeltranslation_page_editor_css():
-    return format_html('<link rel="stylesheet" href="'
-                       + settings.STATIC_URL
-                       + 'wagtail_modeltranslation/css/page_editor_modeltranslation.css" >')
+    filename = 'wagtail_modeltranslation/css/page_editor_modeltranslation.css'
+    return format_html('<link rel="stylesheet" href="{}" >'.format(static(filename)))
 
 
 @hooks.register('register_rich_text_link_handler')
@@ -160,3 +176,70 @@ def register_localized_page_link_handler():
                 return "<a>"
 
     return ('page', LocalizedPageLinkHandler)
+
+
+@hooks.register('before_copy_page')
+def before_copy_page(request, page):
+    parent_page = page.get_parent()
+    can_publish = parent_page.permissions_for_user(request.user).can_publish_subpage()
+    form = PatchedCopyForm(request.POST or None, user=request.user, page=page, can_publish=can_publish)
+    next_url = get_valid_next_url_from_request(request)
+
+    if request.method == 'POST':
+        # Prefill parent_page in case the form is invalid (as prepopulated value for the form field,
+        # because ModelChoiceField seems to not fall back to the user given value)
+        parent_page = Page.objects.get(id=request.POST['new_parent_page'])
+
+        if form.is_valid():
+            # Receive the parent page (this should never be empty)
+            if form.cleaned_data['new_parent_page']:
+                parent_page = form.cleaned_data['new_parent_page']
+
+            if not page.permissions_for_user(request.user).can_copy_to(parent_page,
+                                                                       form.cleaned_data.get('copy_subpages')):
+                raise PermissionDenied
+
+            # Re-check if the user has permission to publish subpages on the new parent
+            can_publish = parent_page.permissions_for_user(request.user).can_publish_subpage()
+
+            update_attrs = {}
+            for code, name in settings.LANGUAGES:
+                slug = "slug_{}".format(code)
+                title = "title_{}".format(code)
+                update_attrs[slug] = form.cleaned_data["new_{}".format(slug)]
+                update_attrs[title] = form.cleaned_data["new_{}".format(title)]
+
+            # Copy the page
+            new_page = page.copy(
+                recursive=form.cleaned_data.get('copy_subpages'),
+                to=parent_page,
+                update_attrs=update_attrs,
+                keep_live=(can_publish and form.cleaned_data.get('publish_copies')),
+                user=request.user,
+            )
+
+            # Give a success message back to the user
+            if form.cleaned_data.get('copy_subpages'):
+                messages.success(
+                    request,
+                    _("Page '{0}' and {1} subpages copied.").format(
+                        page.get_admin_display_title(), new_page.get_descendants().count())
+                )
+            else:
+                messages.success(request, _("Page '{0}' copied.").format(page.get_admin_display_title()))
+
+            for fn in hooks.get_hooks('after_copy_page'):
+                result = fn(request, page, new_page)
+                if hasattr(result, 'status_code'):
+                    return result
+
+            # Redirect to explore of parent page
+            if next_url:
+                return redirect(next_url)
+            return redirect('wagtailadmin_explore', parent_page.id)
+
+    return render(request, 'modeltranslation_copy.html', {
+        'page': page,
+        'form': form,
+        'next': next_url
+    })