Enable location sharing in Element (#2276)

* Enable location sharing in Element

* Update roles/custom/matrix-client-element/tasks/validate_config.yml

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Update roles/custom/matrix-client-element/tasks/setup_install.yml

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Rename location sharing vars to be consistent with other vars

* Rename style.json to map_style.json

* Add m.tile_server section to /.well-known/matrix/client

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

roles/custom/matrix-client-element/defaults/main.yml

@@ -135,3 +135,70 @@ matrix_client_element_configuration_extension: "{{ matrix_client_element_configu
 # Holds the final Element configuration (a combination of the default and its extension).
 # You most likely don't need to touch this variable. Instead, see `matrix_client_element_configuration_default`.
 matrix_client_element_configuration: "{{ matrix_client_element_configuration_default | combine(matrix_client_element_configuration_extension, recursive=True) }}"
+
+# Element Location sharing functionality
+# More info: https://element.io/blog/element-launches-e2ee-location-sharing/
+# How to host your own map tile server: https://matrix.org/docs/guides/map-tile-server
+matrix_client_element_location_sharing_enabled: false
+
+# Default Element location sharing map style configuration template which covers the generic use case.
+# You can customize it by controlling the various variables inside it.
+#
+# For a more advanced customization, you can extend the default (see `matrix_client_element_location_sharing_map_style_extension_json`)
+# or completely replace this variable with your own template.
+#
+# The side-effect of this lookup is that Ansible would even parse the JSON for us, returning a dict.
+# This is unlike what it does when looking up YAML template files (no automatic parsing there).
+matrix_client_element_location_sharing_map_style_default: "{{ lookup('template', 'templates/map_style.json.j2') }}"
+
+# Your custom JSON configuration for Element location sharing map style should go to `matrix_client_element_location_sharing_map_style_extension_json`.
+# This configuration extends the default starting configuration (`matrix_client_element_location_sharing_map_style_default`).
+#
+# You can override individual variables from the default configuration, or introduce new ones.
+#
+# If you need something more special, you can take full control by
+# completely redefining `matrix_client_element_location_sharing_map_style_default`.
+#
+# Example configuration override follows:
+#
+# matrix_client_element_location_sharing_map_style_extension_json: |
+#  {
+#    "sources": {
+#        "localsource": {
+#            "tileSize": 512
+#        }
+#    }
+#  }
+#
+# Example configuration extension follows:
+#
+# matrix_client_element_location_sharing_map_style_extension_json: |
+#  {
+#    "sources": {
+#        "anothersource": {
+#            "attribution": "",
+#            "tileSize": 256,
+#            "tiles": ["https://anothertile.example.com/{z}/{x}/{y}.png"],
+#            "type": "raster"
+#        }
+#    }
+#  }
+matrix_client_element_location_sharing_map_style_extension_json: '{}'
+
+matrix_client_element_location_sharing_map_style_extension: "{{ matrix_client_element_location_sharing_map_style_extension_json | from_json if matrix_client_element_location_sharing_map_style_extension_json | from_json is mapping else {} }}"
+
+# Holds the final Element location sharing map style configuration (a combination of the default and its extension).
+# You most likely don't need to touch this variable. Instead, see `matrix_client_element_location_sharing_map_style_default`.
+matrix_client_element_location_sharing_map_style: "{{ matrix_client_element_location_sharing_map_style_default | combine(matrix_client_element_location_sharing_map_style_extension, recursive=True) }}"
+
+# Example tile servers configuration
+# matrix_client_element_location_sharing_map_style_content_sources_localsource_tiles: ["https://tile.example.com/{z}/{x}/{y}.png"]
+# or
+# matrix_client_element_location_sharing_map_style_content_sources_localsource_tiles: ["https://s1.example.com/{z}/{x}/{y}.png", "https://s2.example.com/{z}/{x}/{y}.png", "https://s3.example.com/{z}/{x}/{y}.png"]
+matrix_client_element_location_sharing_map_style_content_sources_localsource_tiles: []
+
+# Map attribution (optional):
+# Attribution for OpenStreetMap would be like this:
+# matrix_client_element_location_sharing_map_style_content_sources_localsource_attribution: "&copy; <a href=\"https://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors"
+# Leave blank, if map does not require attribution.
+matrix_client_element_location_sharing_map_style_content_sources_localsource_attribution: ""