Implemented ui option to block deleted rooms from being rejoined

src/components/rooms.js

@@ -1,4 +1,6 @@
-import React, { Fragment } from "react";
+import React, { Fragment, useState } from "react";
+import classnames from "classnames";
+import { fade } from "@material-ui/core/styles/colorManipulator";
 import { connect } from "react-redux";
 import {
   BooleanField,
@@ -21,6 +23,14 @@ import {
   TopToolbar,
   useRecordContext,
   useTranslate,
+  useRedirect,
+  Toolbar,
+  SaveButton,
+  Button,
+  SimpleForm,
+  BooleanInput,
+  useDelete,
+  useNotify,
 } from "react-admin";
 import get from "lodash/get";
 import PropTypes from "prop-types";
@@ -33,7 +43,13 @@ import PageviewIcon from "@material-ui/icons/Pageview";
 import UserIcon from "@material-ui/icons/Group";
 import ViewListIcon from "@material-ui/icons/ViewList";
 import VisibilityIcon from "@material-ui/icons/Visibility";
+import IconCancel from "@material-ui/icons/Cancel";
 import EventIcon from "@material-ui/icons/Event";
+import Dialog from "@material-ui/core/Dialog";
+import DialogContent from "@material-ui/core/DialogContent";
+import DialogContentText from "@material-ui/core/DialogContentText";
+import DialogTitle from "@material-ui/core/DialogTitle";
+import DeleteIcon from "@material-ui/icons/Delete";
 import {
   RoomDirectoryBulkDeleteButton,
   RoomDirectoryBulkSaveButton,
@@ -46,6 +62,16 @@ const useStyles = makeStyles(theme => ({
     fontFamily: "Roboto, Helvetica, Arial, sans-serif",
     margin: "0.5em",
   },
+  deleteButton: {
+    color: theme.palette.error.main,
+    "&:hover": {
+      backgroundColor: fade(theme.palette.error.main, 0.12),
+      // Reset on mouse devices
+      "@media (hover: none)": {
+        backgroundColor: "transparent",
+      },
+    },
+  },
 }));
 
 const RoomPagination = props => (
@@ -106,14 +132,7 @@ const RoomShowActions = ({ basePath, data, resource }) => {
       {roomDirectoryStatus === true && (
         <RoomDirectoryDeleteButton record={data} />
       )}
-      <DeleteButton
-        basePath={basePath}
-        record={data}
-        resource={resource}
-        mutationMode="pessimistic"
-        confirmTitle="resources.rooms.action.erase.title"
-        confirmContent="resources.rooms.action.erase.content"
-      />
+      <DeleteRoomButton record={data} />
     </TopToolbar>
   );
 };
@@ -408,3 +427,92 @@ function mapStateToProps(state) {
 }
 
 export const RoomList = connect(mapStateToProps)(FilterableRoomList);
+
+const DeleteRoomDialog = ({ open, loading, onClose, onSend }) => {
+  const translate = useTranslate();
+
+  const DeleteRoomToolbar = props => {
+    return (
+      <Toolbar {...props}>
+        <SaveButton
+          label="resources.rooms.action.erase.title"
+          icon={<DeleteIcon />}
+        />
+        <Button label="ra.action.cancel" onClick={onClose}>
+          <IconCancel />
+        </Button>
+      </Toolbar>
+    );
+  };
+
+  return (
+    <Dialog open={open} onClose={onClose} loading={loading}>
+      <DialogTitle>
+        {translate("resources.rooms.action.erase.title")}
+      </DialogTitle>
+      <DialogContent>
+        <DialogContentText>
+          {translate("resources.rooms.action.erase.content")}
+        </DialogContentText>
+        <SimpleForm
+          toolbar={<DeleteRoomToolbar />}
+          submitOnEnter={false}
+          redirect={false}
+          save={onSend}
+        >
+          <BooleanInput
+            fullWidth
+            source="block"
+            label="resources.rooms.action.erase.fields.block"
+            defaultValue={true}
+          />
+        </SimpleForm>
+      </DialogContent>
+    </Dialog>
+  );
+};
+
+export const DeleteRoomButton = props => {
+  const classes = useStyles(props);
+  const [open, setOpen] = useState(false);
+  const notify = useNotify();
+  const redirect = useRedirect();
+  const [deleteOne, { loading }] = useDelete("rooms");
+  const record = useRecordContext(props);
+
+  const handleDialogOpen = () => setOpen(true);
+  const handleDialogClose = () => setOpen(false);
+
+  const handleSend = values => {
+    deleteOne(
+      { payload: { id: record.id, ...values } },
+      {
+        onSuccess: () => {
+          notify("resources.rooms.action.erase.send_success");
+          handleDialogClose();
+          redirect('/rooms');
+        },
+        onFailure: () =>
+          notify("resources.rooms.action.erase.send_failure", "error"),
+      }
+    );
+  };
+
+  return (
+    <Fragment>
+      <Button
+        label="resources.rooms.action.erase.title"
+        onClick={handleDialogOpen}
+        disabled={loading}
+        className={classnames("ra-delete-button", classes.deleteButton)}
+      >
+        <DeleteIcon />
+      </Button>
+      <DeleteRoomDialog
+        open={open}
+        onClose={handleDialogClose}
+        onSend={handleSend}
+      />
+    </Fragment>
+  );
+};

src/i18n/de.js

@@ -180,6 +180,11 @@ const de = {
           title: "Raum löschen",
           content:
             "Sind Sie sicher dass Sie den Raum löschen möchten? Diese Aktion kann nicht rückgängig gemacht werden. Alle Nachrichten und Medien, die der Raum beinhaltet werden vom Server gelöscht!",
+          fields: {
+             block: "Raum für erneute Beitritte sperren",
+          },
+          send_success: "Der Raum wurde gelöscht",
+          send_failure: "Der Raum konnte nicht gelöscht werden",
         },
       },
     },

src/i18n/en.js

@@ -177,6 +177,11 @@ const en = {
         title: "Delete room",
         content:
           "Are you sure you want to delete the room? This cannot be undone. All messages and shared media in the room will be deleted from the server!",
+        fields: {
+           block: "Block room from being rejoined",
+        },
+        send_success: "The room has been deleted",
+        send_failure: "The room could not be deleted",
       },
     },
     reports: {

src/synapse/dataProvider.js

@@ -68,7 +68,7 @@ const resourceMap = {
     },
     delete: params => ({
       endpoint: `/_synapse/admin/v1/rooms/${params.id}`,
-      body: { block: false },
+      body: { block: !!params.block },
     }),
   },
   reports: {