Add media viewer module and media module component, modify attachment behavior

src/components/media_modal/media_modal.js

@@ -0,0 +1,51 @@
+import StillImage from '../still-image/still-image.vue'
+import fileTypeService from '../../services/file_type/file_type.service.js'
+
+const MediaModal = {
+  data () {
+    return {
+      loopVideo: this.$store.state.config.loopVideo
+    }
+  },
+  components: {
+    StillImage
+  },
+  computed: {
+    showing () {
+      return this.$store.state.mediaViewer.activated
+    },
+    currentIndex () {
+      return this.$store.state.mediaViewer.currentIndex
+    },
+    currentMedia () {
+      return this.$store.state.mediaViewer.media[this.currentIndex]
+    },
+    type () {
+      return this.currentMedia ? fileTypeService.fileType(this.currentMedia.mimetype) : null
+    }
+  },
+  methods: {
+    hide () {
+      this.$store.dispatch('closeMediaViewer')
+    },
+    onVideoDataLoad (e) {
+      if (typeof e.srcElement.webkitAudioDecodedByteCount !== 'undefined') {
+        // non-zero if video has audio track
+        if (e.srcElement.webkitAudioDecodedByteCount > 0) {
+          this.loopVideo = this.loopVideo && !this.$store.state.config.loopVideoSilentOnly
+        }
+      } else if (typeof e.srcElement.mozHasAudio !== 'undefined') {
+        // true if video has audio track
+        if (e.srcElement.mozHasAudio) {
+          this.loopVideo = this.loopVideo && !this.$store.state.config.loopVideoSilentOnly
+        }
+      } else if (typeof e.srcElement.audioTracks !== 'undefined') {
+        if (e.srcElement.audioTracks.length > 0) {
+          this.loopVideo = this.loopVideo && !this.$store.state.config.loopVideoSilentOnly
+        }
+      }
+    }
+  }
+}
+
+export default MediaModal