AA-36: Link to toggle calendar sync

openedx/features/course_experience/__init__.py

@@ -82,6 +82,9 @@ COURSE_ENABLE_UNENROLLED_ACCESS_FLAG = CourseWaffleFlag(SEO_WAFFLE_FLAG_NAMESPAC
 # Waffle flag to enable relative dates for course content
 RELATIVE_DATES_FLAG = ExperimentWaffleFlag(WAFFLE_FLAG_NAMESPACE, 'relative_dates', experiment_id=17)
 
+# Waffle flag to enable user calendar syncing
+CALENDAR_SYNC_FLAG = CourseWaffleFlag(WAFFLE_FLAG_NAMESPACE, 'calendar_sync')
+
 
 def course_home_page_title(course):  # pylint: disable=unused-argument
     """

openedx/features/course_experience/course_tools.py

@@ -3,12 +3,23 @@ Support for course tool plugins.
 """
 
 
+from enum import Enum
+
 from openedx.core.lib.plugins import PluginManager
 
 # Stevedore extension point namespace
 COURSE_TOOLS_NAMESPACE = 'openedx.course_tool'
 
 
+class HttpMethod(Enum):
+    """ Enum for HTTP Methods """
+    DELETE = 'DELETE'
+    GET = 'GET'
+    OPTIONS = 'OPTIONS'
+    POST = 'POST'
+    PUT = 'PUT'
+
+
 class CourseTool(object):
     """
     This is an optional base class for Course Tool plugins.
@@ -18,6 +29,8 @@ class CourseTool(object):
     not a requirement, and plugin implementations outside of this repo should
     simply follow the contract defined below.
     """
+    http_method = HttpMethod.GET
+
     @classmethod
     def analytics_id(cls):
         """
@@ -57,6 +70,16 @@ class CourseTool(object):
         """
         raise NotImplementedError("Must specify a url for a course tool.")
 
+    @classmethod
+    def data(cls):
+        """
+        Additional data to send with a form submission
+        """
+        if cls.http_method == HttpMethod.POST:
+            return {}
+        else:
+            return None
+
 
 class CourseToolsPluginManager(PluginManager):
     """

openedx/features/course_experience/templates/course_experience/course-home-fragment.html

@@ -15,6 +15,7 @@ from lms.djangoapps.discussion.django_comment_client.permissions import has_perm
 from openedx.core.djangolib.js_utils import dump_js_escaped_json, js_escaped_string
 from openedx.core.djangolib.markup import Text, HTML
 from openedx.features.course_experience import UNIFIED_COURSE_TAB_FLAG, SHOW_REVIEWS_TOOL_FLAG
+from openedx.features.course_experience.course_tools import HttpMethod
 %>
 
 <%block name="header_extras">
@@ -114,10 +115,21 @@ from openedx.features.course_experience import UNIFIED_COURSE_TAB_FLAG, SHOW_REV
                     <ul class="list-unstyled">
                         % for course_tool in course_tools:
                             <li class="course-tool">
-                                <a class="course-tool-link" data-analytics-id="${course_tool.analytics_id()}" href="${course_tool.url(course_key)}">
-                                    <span class="icon ${course_tool.icon_classes()}" aria-hidden="true"></span>
-                                    ${course_tool.title()}
-                                </a>
+                                % if course_tool.http_method == HttpMethod.GET:
+                                    <a class="course-tool-link" data-analytics-id="${course_tool.analytics_id()}" href="${course_tool.url(course_key)}">
+                                        <span class="icon ${course_tool.icon_classes()}" aria-hidden="true"></span>
+                                        ${course_tool.title()}
+                                    </a>
+                                % elif course_tool.http_method == HttpMethod.POST:
+                                    <form class="course-tool-form" action="${course_tool.url(course_key)}" method="post">
+                                        <input type="hidden" id="csrf_token" name="csrfmiddlewaretoken" value="${csrf_token}">
+                                        <input type="hidden" name="tool_data" value="${course_tool.data()}">
+                                        <button class="course-tool-button" data-analytics-id="${course_tool.analytics_id()}" aria-hidden="true">
+                                            <span class="icon ${course_tool.icon_classes()}" aria-hidden="true"></span>
+                                            ${course_tool.title()}
+                                        </button>
+                                    </form>
+                                % endif
                             </li>
                         % endfor
                     </ul>

openedx/features/course_experience/templates/course_experience/dates-summary.html

@@ -4,7 +4,7 @@ from django.utils.translation import ugettext as _
 <%page args="course_date" expression_filter="h"/>
 <div class="date-summary date-summary-${course_date.css_class}">
     <div class="left-column">
-        <div class="calendar-icon"></div>
+        <span class="icon fa fa-calendar" aria-hidden="true"></span>
     </div>
     <div class="right-column">
         % if course_date.date: