feat: add share link button when hide from toc is enabled in sections (#34043)

* feat: add share link modal when hide from toc is enabled

Adds a new button in the child subsections of sections with Hide From TOC enabled.
This button displays a new modal with two tabs. The first tab displays a button
that allows you to copy the link of that subsection to the clipboard. The second
tab displays a button that allows you to copy the embedded link of the same
subsection to the clipboard.

Ref: https://openedx.atlassian.net/wiki/spaces/OEPM/pages/3853975595/Feature+Enhancement+Proposal+Hide+Sections+from+course+outline

cms/djangoapps/contentstore/helpers.py

@@ -8,6 +8,7 @@ from lxml import etree
 from mimetypes import guess_type
 
 from attrs import frozen, Factory
+from django.conf import settings
 from django.utils.translation import gettext as _
 from opaque_keys.edx.keys import AssetKey, CourseKey, UsageKey
 from opaque_keys.edx.locator import DefinitionLocator, LocalId
@@ -22,6 +23,7 @@ from xmodule.modulestore.django import modulestore
 from xmodule.xml_block import XmlMixin
 
 from cms.djangoapps.models.settings.course_grading import CourseGradingModel
+from openedx.core.djangoapps.site_configuration import helpers as configuration_helpers
 import openedx.core.djangoapps.content_staging.api as content_staging_api
 
 from .utils import reverse_course_url, reverse_library_url, reverse_usage_url
@@ -125,6 +127,34 @@ def xblock_studio_url(xblock, parent_xblock=None, find_parent=False):
         return reverse_usage_url('container_handler', xblock.location)
 
 
+def xblock_lms_url(xblock) -> str:
+    """
+    Returns the LMS URL for the specified xblock.
+
+    Args:
+        xblock: The xblock to get the LMS URL for.
+
+    Returns:
+        str: The LMS URL for the specified xblock.
+    """
+    lms_root_url = configuration_helpers.get_value('LMS_ROOT_URL', settings.LMS_ROOT_URL)
+    return f"{lms_root_url}/courses/{xblock.location.course_key}/jump_to/{xblock.location}"
+
+
+def xblock_embed_lms_url(xblock) -> str:
+    """
+    Returns the LMS URL for the specified xblock in embed mode.
+
+    Args:
+        xblock: The xblock to get the LMS URL for.
+
+    Returns:
+        str: The LMS URL for the specified xblock in embed mode.
+    """
+    lms_root_url = configuration_helpers.get_value('LMS_ROOT_URL', settings.LMS_ROOT_URL)
+    return f"{lms_root_url}/xblock/{xblock.location}"
+
+
 def xblock_type_display_name(xblock, default_display_name=None):
     """
     Returns the display name for the specified type of xblock. Note that an instance can be passed in

cms/djangoapps/contentstore/views/tests/test_helpers.py

@@ -2,13 +2,13 @@
 Unit tests for helpers.py.
 """
 
-
+from unittest.mock import patch, Mock
 from urllib.parse import quote
 
 from cms.djangoapps.contentstore.tests.utils import CourseTestCase
 from xmodule.modulestore.tests.factories import BlockFactory, LibraryFactory  # lint-amnesty, pylint: disable=wrong-import-order
 
-from ...helpers import xblock_studio_url, xblock_type_display_name
+from ...helpers import xblock_embed_lms_url, xblock_lms_url, xblock_studio_url, xblock_type_display_name
 
 
 class HelpersTestCase(CourseTestCase):
@@ -60,6 +60,44 @@ class HelpersTestCase(CourseTestCase):
         expected_url = f'/library/{str(library.location.library_key)}'
         self.assertEqual(xblock_studio_url(library), expected_url)
 
+    @patch('cms.djangoapps.contentstore.helpers.configuration_helpers.get_value')
+    def test_xblock_lms_url(self, mock_get_value: Mock):
+        mock_get_value.return_value = 'lms.example.com'
+
+        # Verify chapter URL
+        chapter = BlockFactory.create(
+            parent_location=self.course.location, category='chapter', display_name="Week 1"
+        )
+        self.assertEqual(
+            xblock_lms_url(chapter),
+            f"lms.example.com/courses/{chapter.location.course_key}/jump_to/{chapter.location}"
+        )
+
+        # Verify sequential URL
+        sequential = BlockFactory.create(
+            parent_location=chapter.location, category='sequential', display_name="Lesson 1"
+        )
+        self.assertEqual(
+            xblock_lms_url(sequential),
+            f"lms.example.com/courses/{sequential.location.course_key}/jump_to/{sequential.location}"
+        )
+
+    @patch('cms.djangoapps.contentstore.helpers.configuration_helpers.get_value')
+    def test_xblock_embed_lms_url(self, mock_get_value: Mock):
+        mock_get_value.return_value = 'lms.example.com'
+
+        # Verify chapter URL
+        chapter = BlockFactory.create(
+            parent_location=self.course.location, category='chapter', display_name="Week 1"
+        )
+        self.assertEqual(xblock_embed_lms_url(chapter), f"lms.example.com/xblock/{chapter.location}")
+
+        # Verify sequential URL
+        sequential = BlockFactory.create(
+            parent_location=chapter.location, category='sequential', display_name="Lesson 1"
+        )
+        self.assertEqual(xblock_embed_lms_url(sequential), f"lms.example.com/xblock/{sequential.location}")
+
     def test_xblock_type_display_name(self):
 
         # Verify chapter type display name

cms/djangoapps/contentstore/xblock_storage_handlers/view_handlers.py

@@ -78,6 +78,8 @@ from ..helpers import (
     get_parent_xblock,
     import_staged_content_from_user_clipboard,
     is_unit,
+    xblock_embed_lms_url,
+    xblock_lms_url,
     xblock_primary_child_category,
     xblock_studio_url,
     xblock_type_display_name,
@@ -1070,6 +1072,8 @@ def create_xblock_info(  # lint-amnesty, pylint: disable=too-many-statements
                 "published": published,
                 "published_on": published_on,
                 "studio_url": xblock_studio_url(xblock, parent_xblock),
+                "lms_url": xblock_lms_url(xblock),
+                "embed_lms_url": xblock_embed_lms_url(xblock),
                 "released_to_students": datetime.now(UTC) > xblock.start,
                 "release_date": release_date,
                 "visibility_state": visibility_state,