Expose upgrade room permissions in room settings and fix command

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/SlashCommands.js

@@ -139,8 +139,13 @@ export const CommandMap = {
         description: _td('Upgrades a room to a new version'),
         runFn: function(roomId, args) {
             if (args) {
-                const room = MatrixClientPeg.get().getRoom(roomId);
+                const cli = MatrixClientPeg.get();
-                Modal.createTrackedDialog('Slash Commands', 'upgrade room confirmation',
+                const room = cli.getRoom(roomId);
+                if (!room.currentState.mayClientSendStateEvent("m.room.tombstone", cli)) {
+                    return reject(_t("You do not have the required permissions to use this command."));
+                }
+
+                const {finished} = Modal.createTrackedDialog('Slash Commands', 'upgrade room confirmation',
                     QuestionDialog, {
                     title: _t('Room upgrade confirmation'),
                     description: (
@@ -198,13 +203,13 @@ export const CommandMap = {
                         </div>
                     ),
                     button: _t("Upgrade"),
-                    onFinished: (confirm) => {
+                });
+
+                return success(finished.then((confirm) => {
                     if (!confirm) return;
 
-                        MatrixClientPeg.get().upgradeRoom(roomId, args);
+                    return cli.upgradeRoom(roomId, args);
-                    },
+                }));
-                });
-                return success();
             }
             return reject(this.getUsage());
         },

src/components/views/settings/tabs/room/RolesRoomSettingsTab.js

@@ -30,6 +30,7 @@ const plEventsToLabels = {
     "m.room.history_visibility": _td("Change history visibility"),
     "m.room.power_levels": _td("Change permissions"),
     "m.room.topic": _td("Change topic"),
+    "m.room.tombstone": _td("Upgrade the room"),
 
     "im.vector.modular.widgets": _td("Modify widgets"),
 };
@@ -42,6 +43,7 @@ const plEventsToShow = {
     "m.room.history_visibility": {isState: true},
     "m.room.power_levels": {isState: true},
     "m.room.topic": {isState: true},
+    "m.room.tombstone": {isState: true},
 
     "im.vector.modular.widgets": {isState: true},
 };

src/i18n/strings/en_EN.json

@@ -146,6 +146,7 @@
     "/ddg is not a command": "/ddg is not a command",
     "To use it, just wait for autocomplete results to load and tab through them.": "To use it, just wait for autocomplete results to load and tab through them.",
     "Upgrades a room to a new version": "Upgrades a room to a new version",
+    "You do not have the required permissions to use this command.": "You do not have the required permissions to use this command.",
     "Room upgrade confirmation": "Room upgrade confirmation",
     "Upgrading a room can be destructive and isn't always necessary.": "Upgrading a room can be destructive and isn't always necessary.",
     "Room upgrades are usually recommended when a room version is considered <i>unstable</i>. Unstable room versions might have bugs, missing features, or security vulnerabilities.": "Room upgrades are usually recommended when a room version is considered <i>unstable</i>. Unstable room versions might have bugs, missing features, or security vulnerabilities.",
@@ -680,6 +681,7 @@
     "Change history visibility": "Change history visibility",
     "Change permissions": "Change permissions",
     "Change topic": "Change topic",
+    "Upgrade the room": "Upgrade the room",
     "Modify widgets": "Modify widgets",
     "Failed to unban": "Failed to unban",
     "Unban": "Unban",