Merge pull request #767 from vector-im/bwindels/download-media

Menu option to download attached image or video of event

src/domain/session/room/timeline/tiles/BaseMediaTile.js

@@ -27,6 +27,29 @@ export class BaseMediaTile extends BaseMessageTile {
         this._decryptedFile = null;
         this._isVisible = false;
         this._error = null;
+        this._downloading = false;
+        this._downloadError = null;
+    }
+
+    async downloadMedia() {
+        if (this._downloading || this.isPending) {
+            return;
+        }
+        const content = this._getContent();
+        const filename = content.body;
+        this._downloading = true;
+        this.emitChange("status");
+        let blob;
+        try {
+            blob = await this._mediaRepository.downloadAttachment(content);
+            this.platform.saveFileAs(blob, filename);
+        } catch (err) {
+            this._downloadError = err;
+        } finally {
+            blob?.dispose();
+            this._downloading = false;
+        }
+        this.emitChange("status");
     }
 
     get isUploading() {
@@ -38,7 +61,7 @@ export class BaseMediaTile extends BaseMessageTile {
         return pendingEvent && Math.round((pendingEvent.attachmentsSentBytes / pendingEvent.attachmentsTotalBytes) * 100);
     }
 
-    get sendStatus() {
+    get status() {
         const {pendingEvent} = this._entry;
         switch (pendingEvent?.status) {
             case SendStatus.Waiting:
@@ -53,6 +76,12 @@ export class BaseMediaTile extends BaseMessageTile {
             case SendStatus.Error:
                 return this.i18n`Error: ${pendingEvent.error.message}`;
             default:
+                if (this._downloadError) {
+                    return `Download failed`;
+                }
+                if (this._downloading) {
+                    return this.i18n`Downloading…`;
+                }
                 return "";
         }
     }

src/platform/web/ui/css/themes/element/timeline.css

@@ -233,7 +233,7 @@ only loads when the top comes into view*/
     align-self: stretch;
 }
 
-.Timeline_messageBody .media > .sendStatus {
+.Timeline_messageBody .media > .status {
     align-self: end;
     justify-self: start;
     font-size: 0.8em;
@@ -251,7 +251,7 @@ only loads when the top comes into view*/
 }
 
 .Timeline_messageBody .media > time,
-.Timeline_messageBody .media > .sendStatus {
+.Timeline_messageBody .media > .status {
     color: var(--text-color);
     display: block;
     padding: 2px;

src/platform/web/ui/session/room/timeline/BaseMediaView.js

@@ -15,6 +15,7 @@ limitations under the License.
 */
 
 import {BaseMessageView} from "./BaseMessageView.js";
+import {Menu} from "../../../general/Menu.js";
 
 export class BaseMediaView extends BaseMessageView {
     renderMessageBody(t, vm) {
@@ -35,24 +36,39 @@ export class BaseMediaView extends BaseMessageView {
             this.renderMedia(t, vm),
             t.time(vm.date + " " + vm.time),
         ];
-        if (vm.isPending) {
-            const sendStatus = t.div({
+        const status = t.div({
             className: {
-                    sendStatus: true,
-                    hidden: vm => !vm.sendStatus
+                status: true,
+                hidden: vm => !vm.status
             },
-            }, vm => vm.sendStatus);
+        }, vm => vm.status);
+        children.push(status);
+        if (vm.isPending) {
             const progress = t.progress({
                 min: 0,
                 max: 100,
                 value: vm => vm.uploadPercentage,
                 className: {hidden: vm => !vm.isUploading}
             });
-            children.push(sendStatus, progress);
+            children.push(progress);
         }
         return t.div({className: "Timeline_messageBody"}, [
             t.div({className: "media", style: `max-width: ${vm.width}px`}, children),
             t.if(vm => vm.error, t => t.p({className: "error"}, vm.error))
         ]);
     }
+
+    createMenuOptions(vm) {
+        const options = super.createMenuOptions(vm);
+        if (!vm.isPending) {
+            let label;
+            switch (vm.shape) {
+                case "image": label = vm.i18n`Download image`; break;
+                case "video": label = vm.i18n`Download video`; break;
+                default: label = vm.i18n`Download media`; break;
+            }
+            options.push(Menu.option(label, () => vm.downloadMedia()));
+        }
+        return options;
+    }
 }