Add Copy permalink option to messages (matrix.to) (#136)

This might be a little ambiguous since we'll have permalinks within the Matrix Public Archive with `?at=$xxx` (related #137) which is different from `matrix.to` permalinks 🤔

But will just go with it for now ⏩

package.json

@@ -47,7 +47,7 @@
     "@opentelemetry/semantic-conventions": "^1.3.1",
     "dompurify": "^2.3.9",
     "express": "^4.17.2",
-    "hydrogen-view-sdk": "npm:@mlm/hydrogen-view-sdk@^0.24.0-scratch",
+    "hydrogen-view-sdk": "npm:@mlm/hydrogen-view-sdk@^0.25.0-scratch",
     "json5": "^2.2.1",
     "linkedom": "^0.14.17",
     "matrix-public-archive-shared": "file:./shared/",

shared/hydrogen-vm-render-script.js

@@ -6,20 +6,13 @@
 // Data is passed in via `window.matrixPublicArchiveContext`
 
 const assert = require('matrix-public-archive-shared/lib/assert');
-const {
-  Platform,
-  MediaRepository,
-  createNavigation,
-  createRouter,
-
-  RetainedObservableValue,
-  PowerLevels,
-} = require('hydrogen-view-sdk');
+const { Platform, MediaRepository, createNavigation, createRouter } = require('hydrogen-view-sdk');
 
 const ArchiveRoomView = require('matrix-public-archive-shared/views/ArchiveRoomView');
 const ArchiveHistory = require('matrix-public-archive-shared/lib/archive-history');
 const supressBlankAnchorsReloadingThePage = require('matrix-public-archive-shared/lib/supress-blank-anchors-reloading-the-page');
 const ArchiveRoomViewModel = require('matrix-public-archive-shared/viewmodels/ArchiveRoomViewModel');
+const stubPowerLevelsObservable = require('matrix-public-archive-shared/lib/stub-powerlevels-observable');
 
 const fromTimestamp = window.matrixPublicArchiveContext.fromTimestamp;
 assert(fromTimestamp);
@@ -98,19 +91,7 @@ async function mountHydrogen() {
     mediaRepository: mediaRepository,
     // Based on https://github.com/vector-im/hydrogen-web/blob/5f9cfffa3b547991b665f57a8bf715270a1b2ef1/src/matrix/room/BaseRoom.js#L480
     observePowerLevels: async function () {
-      let powerLevelsObservable = this._powerLevelsObservable;
-      if (!powerLevelsObservable) {
-        const powerLevels = new PowerLevels({
-          powerLevelEvent: {},
-          ownUserId: 'xxx-ownUserId',
-          membership: null,
-        });
-        powerLevelsObservable = new RetainedObservableValue(powerLevels, () => {
-          this._powerLevels = null;
-        });
-        this._powerLevelsObservable = powerLevelsObservable;
-      }
-      return powerLevelsObservable;
+      return stubPowerLevelsObservable;
     },
   };
 

shared/lib/stub-powerlevels-observable.js

@@ -0,0 +1,17 @@
+'use strict';
+
+const { RetainedObservableValue, PowerLevels } = require('hydrogen-view-sdk');
+
+// Fake power levels for viewing the room anonymously
+const stubPowerLevels = new PowerLevels({
+  powerLevelEvent: {},
+  ownUserId: 'xxx-ownUserId',
+  membership: null,
+});
+const stubPowerLevelsObservable = new RetainedObservableValue(stubPowerLevels, () => {
+  // freeCallback
+  //
+  // I don't think we need to do anything here 🤷
+});
+
+module.exports = stubPowerLevelsObservable;

shared/viewmodels/ArchiveRoomViewModel.js

@@ -22,6 +22,7 @@ const AvatarViewModel = require('matrix-public-archive-shared/viewmodels/AvatarV
 const {
   customTileClassForEntry,
 } = require('matrix-public-archive-shared/lib/custom-tile-utilities');
+const stubPowerLevelsObservable = require('matrix-public-archive-shared/lib/stub-powerlevels-observable');
 
 let txnCount = 0;
 function getFakeEventId() {
@@ -371,6 +372,7 @@ class ArchiveRoomViewModel extends ViewModel {
       fragmentIdComparer: fragmentIdComparer,
       clock: this.platform.clock,
       logger: this.platform.logger,
+      powerLevelsObservable: stubPowerLevelsObservable,
     });
 
     // Something we can modify with new state updates as we see them