Duplicate file associations code from the app template (#82)

See briefcase-macOS-app-template#72

Author: davidfokkema

{{ cookiecutter.format }}/{{ cookiecutter.class_name }}/Info.plist

@@ -30,59 +30,81 @@
 	<string>NSApplication</string>
 	<key>MainModule</key>
 	<string>{{ cookiecutter.module_name }}</string>
-	{% if cookiecutter.document_types %}
+	{% if cookiecutter.document_types -%}
 	<key>CFBundleDocumentTypes</key>
 	<array>
-		{% for extension, doctype in cookiecutter.document_types.items() %}
+		{% for document_type_id, document_type in cookiecutter.document_types.items() -%}
+			{% set macOS = document_type.macOS | default({}) -%}
 		<dict>
 			<key>CFBundleTypeName</key>
-			<string>{{ doctype.description }}</string>
+			<string>{{ document_type.description }}</string>
 			<key>CFBundleTypeIconFile</key>
-			<string>{{ cookiecutter.app_name }}-{{ extension }}.icns</string>
-			<key>CFBundleTypeExtensions</key>
-			<array>
-				<string>{{ extension }}</string>
-			</array>
-			<key>CFBundleTypeMIMETypes</key>
-			<array/>
+			<string>{{ cookiecutter.app_name }}-{{ document_type_id }}.icns</string>
 			<key>CFBundleTypeRole</key>
-			<string>Viewer</string>
+			<string>{{ macOS.CFBundleTypeRole }}</string>
+			<key>LSHandlerRank</key>
+			<string>{{ macOS.LSHandlerRank }}</string>
 			<key>LSItemContentTypes</key>
 			<array>
-				<string>{{ cookiecutter.bundle }}.{{ cookiecutter.app_name }}.{{ extension }}</string>
+				{%- if macOS.LSItemContentTypes is defined %}
+				<string>{{ macOS.LSItemContentTypes[0] }}</string>
+				{%- else %}
+				<string>{{ cookiecutter.bundle }}.{{ cookiecutter.app_name }}.{{ document_type_id }}</string>
+				{%- endif %}
 			</array>
-			<key>LSTypeIsPackage</key>
-			<integer>1</integer>
 		</dict>
 		{% endfor %}
 	</array>
-	<key>UTExportedTypeDeclarations</key>
-	<array>
-		{% for doctype_id, doctype in cookiecutter.document_types.items() %}
+		{%- macro type_declaration(cookiecutter, document_type_id, document_type, macOS) -%}
 		<dict>
-			<key>UTTypeIdentifier</key>
-			<string>{{ cookiecutter.bundle }}.{{ cookiecutter.app_name }}.{{ doctype_id }}</string>
-			<key>UTTypeReferenceURL</key>
-			<string>{{ doctype.url }}</string>
-			<key>UTTypeIconFile</key>
-			<string>{{ cookiecutter.app_name }}-{{ doctype_id }}.icns</string>
 			<key>UTTypeConformsTo</key>
 			<array>
-				<string>com.apple.package</string>
+				{%- for type in macOS.UTTypeConformsTo %}
+				<string>{{ type }}</string>
+				{%- endfor %}
 			</array>
 			<key>UTTypeDescription</key>
-			<string>{{ doctype.description }}</string>
+			<string>{{ document_type.description }}</string>
+			<key>UTTypeIconFile</key>
+			<string>{{ cookiecutter.app_name }}-{{ document_type_id }}.icns</string>
+			<key>UTTypeIdentifier</key>
+			{% if macOS.LSItemContentTypes is defined -%}
+			<string>{{ macOS.LSItemContentTypes[0] }}</string>
+			{%- else -%}
+			<string>{{ cookiecutter.bundle }}.{{ cookiecutter.app_name }}.{{ document_type_id }}</string>
+			{%- endif %}
+			<key>UTTypeReferenceURL</key>
+			<string>{{ document_type.url }}</string>
 			<key>UTTypeTagSpecification</key>
 			<dict>
 				<key>public.filename-extension</key>
 				<array>
-					<string>{{ doctype.extension }}</string>
+					<string>{{ document_type.extension }}</string>
 				</array>
+				<key>public.mime-type</key>
+				<string>{% if document_type.get('mime_type') %}{{ document_type.mime_type }}{% else %}application/x-{{ cookiecutter.app_name }}-{{ document_type_id }}{% endif %}</string>
 			</dict>
 		</dict>
-		{% endfor %}
+		{% endmacro %}
+	<key>UTExportedTypeDeclarations</key>
+	<array>
+		{% for document_type_id, document_type in cookiecutter.document_types.items() -%}
+			{% set macOS = document_type.macOS | default({}) -%}
+			{% if macOS.LSHandlerRank == "Owner" -%}
+		{{ type_declaration(cookiecutter, document_type_id, document_type, macOS) }}
+			{%- endif %}
+		{%- endfor %}
+	</array>
+	<key>UTImportedTypeDeclarations</key>
+	<array>
+		{% for document_type_id, document_type in cookiecutter.document_types.items() -%}
+			{% set macOS = document_type.macOS | default({}) -%}
+			{% if macOS.is_core_type is false and macOS.LSHandlerRank != "Owner" -%}
+		{{ type_declaration(cookiecutter, document_type_id, document_type, macOS) }}
+			{%- endif %}
+		{%- endfor %}
 	</array>
-	{% endif %}
+	{%- endif -%}
 {%- if cookiecutter.info -%}
 	{%- for permission, value in cookiecutter.info.items() %}
 	<key>{{ permission }}</key>