initial implementation of attachmentsetting

src/components/settings_modal/helpers/attachment_setting.js

@@ -0,0 +1,42 @@
+import Setting from './setting.js'
+import { fileTypeExt } from 'src/services/file_type/file_type.service.js'
+import MediaUpload from 'src/components/media_upload/media_upload.vue'
+import Attachment from 'src/components/attachment/attachment.vue'
+
+export default {
+  ...Setting,
+  props: {
+    ...Setting.props,
+    type: {
+      type: Array,
+      required: false,
+      default: []
+    }
+  },
+  components: {
+    ...Setting.components,
+    MediaUpload,
+    Attachment
+  },
+  computed: {
+    ...Setting.computed,
+    attachment () {
+      const path = this.realDraftMode ? this.draft : this.state
+      const url = path.includes('://') ? path : this.$store.state.instance.server + path
+      return {
+        mimetype: fileTypeExt(url),
+        url
+      }
+    }
+  },
+  methods: {
+    ...Setting.methods,
+    setMediaFile (fileInfo) {
+      if (this.realDraftMode) {
+        this.draft = fileInfo.url
+      } else {
+        this.configSink(this.path, fileInfo.url)
+      }
+    }
+  }
+}