Implement a stub unified course tab

lms/djangoapps/courseware/tabs.py

@@ -2,6 +2,8 @@
 This module is essentially a broker to xmodule/tabs.py -- it was originally introduced to
 perform some LMS-specific tab display gymnastics for the Entrance Exams feature
 """
+import waffle
+
 from django.conf import settings
 from django.utils.translation import ugettext as _, ugettext_noop
 
@@ -9,7 +11,7 @@ from courseware.access import has_access
 from courseware.entrance_exams import user_can_skip_entrance_exam
 from openedx.core.lib.course_tabs import CourseTabPluginManager
 from student.models import CourseEnrollment
-from xmodule.tabs import CourseTab, CourseTabList, key_checker
+from xmodule.tabs import CourseTab, CourseTabList, key_checker, link_reverse_func
 
 
 class EnrolledTab(CourseTab):
@@ -34,6 +36,16 @@ class CoursewareTab(EnrolledTab):
     is_movable = False
     is_default = False
 
+    @property
+    def link_func(self):
+        """
+        Returns a function that computes the URL for this tab.
+        """
+        if waffle.switch_is_active('unified_course_view'):
+            return link_reverse_func('unified_course_view')
+        else:
+            return link_reverse_func('courseware')
+
 
 class CourseInfoTab(CourseTab):
     """

lms/djangoapps/courseware/views/views.py

@@ -25,6 +25,7 @@ from django.http import (
     QueryDict,
 )
 from django.shortcuts import redirect
+from django.template.loader import render_to_string
 from django.utils.decorators import method_decorator
 from django.utils.timezone import UTC
 from django.utils.translation import ugettext as _
@@ -1623,3 +1624,55 @@ def financial_assistance_form(request):
             }
         ],
     })
+
+
+class UnifiedCourseView(View):
+    """
+    Unified view for a course.
+    """
+    @method_decorator(login_required)
+    @method_decorator(ensure_csrf_cookie)
+    @method_decorator(cache_control(no_cache=True, no_store=True, must_revalidate=True))
+    @method_decorator(ensure_valid_course_key)
+    def get(self, request, course_id):
+        """
+        Displays the main view for the specified course.
+
+        Arguments:
+            request: HTTP request
+            course_id (unicode): course id
+        """
+        course_key = CourseKey.from_string(course_id)
+        course = get_course_with_access(request.user, 'load', course_key, check_if_enrolled=True)
+
+        # Render the outline as a fragment
+        outline_fragment = CourseOutlineFragmentView().render_fragment(request, course_id=course_id)
+
+        # Render the entire unified course view
+        context = {
+            'csrf': csrf(request)['csrf_token'],
+            'course': course,
+            'outline_fragment': outline_fragment,
+            'disable_courseware_js': True,
+            'uses_pattern_library': True,
+        }
+        return render_to_response('courseware/unified-course-view.html', context)
+
+
+class CourseOutlineFragmentView(FragmentView):
+    """
+    Course outline fragment to be shown in the unified course view.
+    """
+
+    def render_fragment(self, request, course_id=None):
+        """
+        Renders the course outline as a fragment.
+        """
+        course_key = CourseKey.from_string(course_id)
+        course = get_course_with_access(request.user, 'load', course_key, check_if_enrolled=True)
+        context = {
+            'csrf': csrf(request)['csrf_token'],
+            'course': course,
+        }
+        html = render_to_string('courseware/course-outline.html', context)
+        return Fragment(html)

lms/templates/courseware/course-outline.html

@@ -0,0 +1,12 @@
+## mako
+
+<%namespace name='static' file='../static_content.html'/>
+
+<%!
+import json
+from django.utils.translation import ugettext as _
+%>
+
+<section class="course-outline" id="course-outline">
+    <p>Hello, world!</p>
+</section>

lms/templates/courseware/unified-course-view.html

@@ -0,0 +1,72 @@
+## mako
+
+<%! main_css = "style-main-v2" %>
+
+<%page expression_filter="h"/>
+<%inherit file="../main.html" />
+<%namespace name='static' file='../static_content.html'/>
+<%def name="online_help_token()"><% return "courseware" %></%def>
+<%def name="course_name()">
+<% return _("{course_number} Courseware").format(course_number=course.display_number_with_default) %>
+</%def>
+
+<%!
+import json
+from django.utils.translation import ugettext as _
+from django.template.defaultfilters import escapejs
+from django.core.urlresolvers import reverse
+
+from django_comment_client.permissions import has_permission
+from openedx.core.djangolib.js_utils import dump_js_escaped_json, js_escaped_string
+from openedx.core.djangolib.markup import HTML
+%>
+
+<%block name="bodyclass">course</%block>
+
+<%block name="pagetitle">${course_name()}</%block>
+
+<%include file="../courseware/course_navigation.html" args="active_page='courseware'" />
+
+<%block name="headextra">
+${HTML(outline_fragment.head_html())}
+</%block>
+
+<%block name="js_extra">
+${HTML(outline_fragment.foot_html())}
+</%block>
+
+<%block name="content">
+<section class="course-view container" id="course-container">
+    <header class="page-header has-secondary">
+        ## Breadcrumb navigation
+        <div class="page-header-main">
+            <nav aria-label="${_('Discussions')}" class="sr-is-focusable" tabindex="-1">
+                <div class="has-breadcrumbs"></div>
+            </nav>
+        </div>
+        <div class="page-header-secondary">
+            <div class="form-actions">
+                <a class="btn btn-small" href="${reverse('courseware', kwargs={'course_id': unicode(course.id.to_deprecated_string())})}">
+                    ${_("Resume Course")}
+                </a>
+            </div>
+            <div class="page-header-search">
+                <form class="search-form" role="search">
+                    <label class="field-label sr-only" for="search" id="search-hint">Search the course</label>
+                    <input
+                            class="field-input input-text search-input"
+                            type="search"
+                            name="search"
+                            id="search"
+                            placeholder="Search the course"
+                    />
+                    <button class="btn btn-small search-btn" type="button">Search</button>
+                </form>
+            </div>
+        </div>
+    </header>
+    <div class="page-content">
+        ${HTML(outline_fragment.body_html())}
+    </div>
+</section>
+</%block>

lms/urls.py

@@ -11,6 +11,7 @@ from django.conf.urls.static import static
 from courseware.views.views import CourseTabView, EnrollStaffView, StaticCourseTabView
 from config_models.views import ConfigurationModelCurrentAPIView
 from courseware.views.index import CoursewareIndex
+from courseware.views.views import UnifiedCourseView, CourseOutlineFragmentView
 from openedx.core.djangoapps.auth_exchange.views import LoginWithAccessTokenView
 from openedx.core.djangoapps.catalog.models import CatalogIntegration
 from openedx.core.djangoapps.programs.models import ProgramsApiConfig
@@ -379,6 +380,20 @@ urlpatterns += (
         name='html_book',
     ),
 
+    url(
+        r'^courses/{}/course/?$'.format(
+            settings.COURSE_ID_PATTERN,
+        ),
+        UnifiedCourseView.as_view(),
+        name='unified_course_view',
+    ),
+    url(
+        r'^courses/{}/course/outline?$'.format(
+            settings.COURSE_ID_PATTERN,
+        ),
+        CourseOutlineFragmentView.as_view(),
+        name='course_outline_fragment_view',
+    ),
     url(
         r'^courses/{}/courseware/?$'.format(
             settings.COURSE_ID_PATTERN,