Remember whether widget drawer was hidden per-room

src/components/structures/RoomView.js

@@ -281,7 +281,7 @@ module.exports = React.createClass({
  this.setState({
  isPeeking: false,
  });
- 
+
  // This won't necessarily be a MatrixError, but we duck-type
  // here and say if it's got an 'errcode' key with the right value,
  // it means we can't peek.
@@ -305,6 +305,15 @@ module.exports = React.createClass({
  _shouldShowApps: function(room) {
  if (!BROWSER_SUPPORTS_SANDBOX) return false;
 
+ // Check if user has previously chosen to hide the app drawer for this
+ // room. If so, do not show apps
+ let hideWidgetDrawer = localStorage.getItem(
+ room.roomId + "_hide_widget_drawer");
+
+ if (hideWidgetDrawer === "true") {
+ return false;
+ }
+
  const appsStateEvents = room.currentState.getStateEvents('im.vector.modular.widgets');
  // any valid widget = show apps
  for (let i = 0; i < appsStateEvents.length; i++) {

src/components/views/rooms/AppsDrawer.js

@@ -81,16 +81,25 @@ module.exports = React.createClass({
  },
 
  onAction: function(action) {
+ const hideWidgetKey = this.props.room.roomId + "_hide_widget_drawer";
  switch (action.action) {
  case 'appsDrawer':
- // When opening the app draw when there aren't any apps, auto-launch the
- // integrations manager to skip the awkward click on "Add widget"
+ // When opening the app drawer when there aren't any apps,
+ // auto-launch the integrations manager to skip the awkward
+ // click on "Add widget"
  if (action.show) {
  const apps = this._getApps();
  if (apps.length === 0) {
  this._launchManageIntegrations();
  }
+
+ localStorage.removeItem(hideWidgetKey);
+ } else {
+ // Store hidden state of widget
+ // Don't show if previously hidden
+ localStorage.setItem(hideWidgetKey, true);
  }
+
  break;
  }
  },