Improve design of the rich text editor (#9533)

New design for rich text composer

res/css/_components.pcss

@@ -260,6 +260,7 @@
 @import "./views/rooms/_AuxPanel.pcss";
 @import "./views/rooms/_BasicMessageComposer.pcss";
 @import "./views/rooms/_E2EIcon.pcss";
+@import "./views/rooms/_EmojiButton.pcss";
 @import "./views/rooms/_EditMessageComposer.pcss";
 @import "./views/rooms/_EntityTile.pcss";
 @import "./views/rooms/_EventBubbleTile.pcss";

res/css/views/rooms/_EmojiButton.pcss

@@ -0,0 +1,35 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+@import "./_MessageComposerButton.pcss";
+
+.mx_EmojiButton {
+    @mixin composerButton 50%,$accent;
+}
+
+.mx_EmojiButton_highlight {
+    @mixin composerButtonHighLight;
+}
+
+.mx_EmojiButton_icon::before {
+    mask-image: url('$(res)/img/element-icons/room/composer/emoji.svg');
+}
+
+.mx_MessageComposer_wysiwyg {
+    .mx_EmojiButton {
+        @mixin composerButton 5px,$tertiary-content;
+    }
+}

res/css/views/rooms/_MessageComposer.pcss

@@ -15,6 +15,8 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+@import "./_MessageComposerButton.pcss";
+
 .mx_MessageComposer_wrapper {
     vertical-align: middle;
     margin: auto;
@@ -59,6 +61,12 @@ limitations under the License.
     width: 100%;
 }
 
+.mx_MessageComposer_actions {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+}
+
 .mx_MessageComposer .mx_MessageComposer_avatar {
     position: absolute;
     left: 26px;
@@ -171,53 +179,16 @@ limitations under the License.
 }
 
 .mx_MessageComposer_button_highlight {
-    background: rgba($accent, 0.25);
+    @mixin composerButtonHighLight;
-    /* make the icon the accent color too */
-    &::before {
-        background-color: $accent !important;
-    }
 }
 
 .mx_MessageComposer_button {
-    --size: 26px;
+    @mixin composerButton 50%,$accent;
-    position: relative;
-    cursor: pointer;
-    height: var(--size);
-    line-height: var(--size);
-    width: auto;
-    padding-left: var(--size);
-    border-radius: 50%;
-    margin-right: 6px;
 
     &:last-child {
         margin-right: auto;
     }
 
-    &::before {
-        content: '';
-        position: absolute;
-        top: 3px;
-        left: 3px;
-        height: 20px;
-        width: 20px;
-        background-color: $icon-button-color;
-        mask-repeat: no-repeat;
-        mask-size: contain;
-        mask-position: center;
-    }
-
-    &::after {
-        content: '';
-        position: absolute;
-        left: 0;
-        top: 0;
-        z-index: 0;
-        width: var(--size);
-        height: var(--size);
-        border-radius: 50%;
-    }
-
-    &:hover,
     &.mx_MessageComposer_closeButtonMenu {
         &::after {
             background: rgba($accent, 0.1);
@@ -232,15 +203,43 @@ limitations under the License.
         background-color: $alert;
     }
 }
-
-/*
-    The wysisyg composer increase the size of the MessageComposer. We temporary move the buttons
-    Soon the dom structure of the MessageComposer will change with the next evolution of the wysiwyg composer
-    and this workaround will disappear
-*/
 .mx_MessageComposer_wysiwyg {
-    .mx_MessageComposer_e2eIcon.mx_E2EIcon,.mx_MessageComposer_button, .mx_MessageComposer_sendMessage {
+    .mx_MessageComposer_wrapper {
-        margin-top: 28px;
+        padding-left: 16px;
+        margin-top: 6px;
+        margin-bottom: 12px;
+    }
+
+    .mx_MessageComposer_row {
+        align-items: flex-end;
+    }
+
+    .mx_MessageComposer_actions {
+        /* Height of the composer editor */
+        height: 40px;
+    }
+
+    .mx_MediaBody {
+        padding-top: 4px;
+        padding-bottom: 4px;
+    }
+
+    .mx_MessageComposer_button {
+        @mixin composerButton 5px,$tertiary-content;
+
+        &.mx_MessageComposer_closeButtonMenu {
+            &::after {
+                background: rgba($accent, 0.1);
+            }
+
+            &::before {
+                background-color: $accent;
+            }
+        }
+
+        &.mx_MessageComposer_hangup:not(.mx_AccessibleButton_disabled)::before {
+            background-color: $alert;
+        }
     }
 }
 
@@ -260,10 +259,6 @@ limitations under the License.
     mask-image: url('$(res)/img/element-icons/live.svg');
 }
 
-.mx_MessageComposer_emoji::before {
-    mask-image: url('$(res)/img/element-icons/room/composer/emoji.svg');
-}
-
 .mx_MessageComposer_plain_text::before {
     mask-image: url('$(res)/img/element-icons/room/composer/plain_text.svg');
 }

res/css/views/rooms/_MessageComposerButton.pcss

@@ -0,0 +1,68 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+@define-mixin composerButtonHighLight {
+    background: rgba($accent, 0.25);
+    /* make the icon the accent color too */
+    &::before {
+        background-color: $accent !important;
+    }
+}
+
+@define-mixin composerButton $border-radius,$hover-color {
+    --size: 26px;
+    position: relative;
+    cursor: pointer;
+    height: var(--size);
+    line-height: var(--size);
+    width: auto;
+    padding-left: var(--size);
+    border-radius: $border-radius;
+
+    &::before {
+        content: '';
+        position: absolute;
+        top: 3px;
+        left: 3px;
+        height: 20px;
+        width: 20px;
+        background-color: $icon-button-color;
+        mask-repeat: no-repeat;
+        mask-size: contain;
+        mask-position: center;
+    }
+
+    &::after {
+        content: '';
+        position: absolute;
+        left: 0;
+        top: 0;
+        z-index: 0;
+        width: var(--size);
+        height: var(--size);
+        border-radius: $border-radius;
+    }
+
+    &:hover {
+        &::after {
+            background: rgba($hover-color, 0.1);
+        }
+
+        &::before {
+            background-color: $hover-color;
+        }
+    }
+}

res/css/views/rooms/_VoiceRecordComposerTile.pcss

@@ -20,7 +20,7 @@ limitations under the License.
     height: 28px;
     border: 2px solid $voice-record-stop-border-color;
     border-radius: 32px;
-    margin-right: 8px; /* between us and the waveform component */
+    margin-right: 2px; /* between us and the waveform component */
     position: relative;
 
     &::after {
@@ -39,7 +39,7 @@ limitations under the License.
     width: 24px;
     height: 24px;
     vertical-align: middle;
-    margin-right: 8px; /* distance from left edge of waveform container (container has some margin too) */
+    margin-right: 2px; /* distance from left edge of waveform container (container has some margin too) */
     background-color: $voice-record-icon-color;
     mask-repeat: no-repeat;
     mask-size: contain;
@@ -69,7 +69,7 @@ limitations under the License.
     height: 32px;
 
     margin: 6px; /* force the composer area to put a gutter around us */
-    margin-right: 12px; /* isolate from stop/send button */
+    margin-right: 6px; /* isolate from stop/send button */
 
     position: relative; /* important for the live circle */
 
@@ -93,6 +93,14 @@ limitations under the License.
     }
 }
 
+.mx_MessageComposer_wysiwyg .mx_VoiceMessagePrimaryContainer {
+    &.mx_VoiceRecordComposerTile_recording {
+        &::before {
+            top: 15px; /* vertically center (middle align with clock) */
+        }
+    }
+}
+
 /* The keyframes are slightly weird here to help make a ramping/punch effect */
 /* for the recording dot. We start and end at 100% opacity to help make the */
 /* dot feel a bit like a real lamp that is blinking: the animation ends up */

res/css/views/rooms/wysiwyg_composer/_EditWysiwygComposer.pcss

@@ -24,7 +24,7 @@ limitations under the License.
     gap: 8px;
     padding: 8px var(--EditWysiwygComposer-padding-inline);
 
-    .mx_WysiwygComposer_content {
+    .mx_WysiwygComposer_Editor_content {
         border-radius: 4px;
         border: solid 1px $primary-hairline-color;
         background-color: $background;

res/css/views/rooms/wysiwyg_composer/_SendWysiwygComposer.pcss

@@ -22,24 +22,50 @@ limitations under the License.
     /* fixed line height to prevent emoji from being taller than text */
     line-height: $font-18px;
     justify-content: center;
-    margin-right: 6px;
+    margin-right: 13px;
-    /* don't grow wider than available space */
+    gap: 8px;
-    min-width: 0;
 
-    .mx_WysiwygComposer_container {
+    .mx_FormattingButtons {
+        margin-left: 12px;
+    }
+
+    .mx_WysiwygComposer_Editor {
+        border: 1px solid;
+        border-color: $quinary-content;
+        padding: 6px 11px 6px 12px;
+        display: flex;
+        align-items: flex-end;
+        gap: 10px;
+
+        .mx_E2EIcon {
+            margin: 0 0 7px 0;
+            width: 12px;
+            height: 12px;
+        }
+
+        &[data-is-expanded="true"] {
+            border-radius: 14px;
+
+            .mx_WysiwygComposer_Editor_container {
+                margin-top: 3px;
+                margin-bottom: 3px;
+            }
+        }
+
+        &[data-is-expanded="false"] {
+            border-radius: 40px;
+        }
+
+        .mx_WysiwygComposer_Editor_container {
             flex: 1;
             display: flex;
             flex-direction: column;
-        /* min-height at this level so the mx_BasicMessageComposer_input */
+            min-height: 22px;
-        /* still stays vertically centered when less than 55px. */
+            margin-bottom: 2px;
-        /* We also set this to ensure the voice message recording widget */
+            /* don't grow wider than available space */
-        /* doesn't cause a jump. */
+            width: 0;
-        min-height: 55px;
 
-        .mx_WysiwygComposer_content {
+            .mx_WysiwygComposer_Editor_content {
-            border: 1px solid;
-            border-radius: 20px;
-            padding: 8px 10px;
                 /* this will center the contenteditable */
                 /* in it's parent vertically */
                 /* while keeping the autocomplete at the top */
@@ -50,4 +76,11 @@ limitations under the License.
                 overflow-y: auto;
             }
         }
+    }
+}
+
+.mx_SendWysiwygComposer-focused {
+    .mx_WysiwygComposer_Editor {
+        border-color: $quaternary-content;
+    }
 }

res/css/views/rooms/wysiwyg_composer/components/_Editor.pcss

@@ -14,15 +14,13 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_WysiwygComposer_container {
+.mx_WysiwygComposer_Editor_container {
-    position: relative;
-
     @keyframes visualbell {
         from { background-color: $visual-bell-bg-color; }
         to { background-color: $background; }
     }
 
-    .mx_WysiwygComposer_content {
+    .mx_WysiwygComposer_Editor_content {
         white-space: pre-wrap;
         word-wrap: break-word;
         outline: none;

res/css/views/rooms/wysiwyg_composer/components/_FormattingButtons.pcss

@@ -17,6 +17,7 @@ limitations under the License.
 .mx_FormattingButtons {
     display: flex;
     justify-content: flex-start;
+    gap: 8px;
 
     .mx_FormattingButtons_Button {
         --size: 28px;
@@ -26,18 +27,9 @@ limitations under the License.
         line-height: var(--size);
         width: auto;
         padding-left: 22px;
-        margin-right: 8px;
         background-color: transparent;
         border: none;
 
-        &:first-child {
-            margin-left: 12px;
-        }
-
-        &:last-child {
-            margin-right: auto;
-        }
-
         &::before {
             content: '';
             position: absolute;

res/img/element-icons/room/composer/plain_text.svg

@@ -1,10 +1,34 @@
-<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<g clip-path="url(#clip0_1456_146350)">
+<svg
-<path d="M1 18.6667C1 19.4 1.6 20 2.33333 20H18.3333C19.0667 20 19.6667 19.4 19.6667 18.6667C19.6667 17.9333 19.0667 17.3333 18.3333 17.3333H2.33333C1.6 17.3333 1 17.9333 1 18.6667ZM7 11.7333H13.6667L14.5467 13.8667C14.7467 14.3467 15.2133 14.6667 15.7333 14.6667C16.6533 14.6667 17.2667 13.72 16.9067 12.88L11.7333 0.92C11.4933 0.36 10.9467 0 10.3333 0C9.72 0 9.17333 0.36 8.93333 0.92L3.76 12.88C3.4 13.72 4.02667 14.6667 4.94667 14.6667C5.46667 14.6667 5.93333 14.3467 6.13333 13.8667L7 11.7333ZM10.3333 2.64L12.8267 9.33333H7.84L10.3333 2.64Z" fill="#C1C6CD"/>
+   width="20"
-</g>
+   height="20"
-<defs>
+   viewBox="0 0 20 20"
-<clipPath id="clip0_1456_146350">
+   fill="none"
-<rect width="20" height="20" fill="white"/>
+   xmlns="http://www.w3.org/2000/svg"
-</clipPath>
+   >
-</defs>
+  <g
+     clip-path="url(#clip0_1456_146365)"
+     id="g53">
+    <path
+       d="M7.00042 13.7333H13.6671L14.5471 15.8667C14.7471 16.3467 15.2137 16.6667 15.7337 16.6667C16.6537 16.6667 17.2671 15.72 16.9071 14.88L11.7337 2.92C11.4937 2.36 10.9471 2 10.3337 2C9.72042 2 9.17375 2.36 8.93375 2.92L3.76042 14.88C3.40042 15.72 4.02708 16.6667 4.94708 16.6667C5.46708 16.6667 5.93375 16.3467 6.13375 15.8667L7.00042 13.7333ZM10.3337 4.64L12.8271 11.3333H7.84042L10.3337 4.64Z"
+       fill="#C1C6CD"
+       id="path49" />
+    <path
+       d="m 1.497495,8.96927 c 0,0.793654 0.7402877,1.441437 1.6473569,1.441437 H 17.521786 c 0.907096,0 1.647419,-0.647783 1.647419,-1.441437 0,-0.7936857 -0.740323,-1.4414375 -1.647419,-1.4414375 H 11.127487 3.1448519 c -0.4734211,0 -0.9014103,0.1764504 -1.2024293,0.4580061 C 1.7722258,8.1450309 1.6426187,8.3378225 1.568339,8.5513189 1.522281,8.6837006 1.497495,8.8240421 1.497495,8.96927 Z"
+       fill="#c1c6cd"
+       stroke="#ffffff"
+       id="path51"
+       style="stroke:none;stroke-width:0.840525;stroke-opacity:1" />
+  </g>
+  <defs
+     id="defs58">
+    <clipPath
+       id="clip0_1456_146365">
+      <rect
+         width="20"
+         height="20"
+         fill="white"
+         id="rect55" />
+    </clipPath>
+  </defs>
 </svg>

res/img/element-icons/room/composer/rich_text.svg

@@ -1,10 +1,9 @@
 <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
-<g clip-path="url(#clip0_1456_146365)">
+<g clip-path="url(#clip0_1456_146350)">
-<path d="M7.00042 13.7333H13.6671L14.5471 15.8667C14.7471 16.3467 15.2137 16.6667 15.7337 16.6667C16.6537 16.6667 17.2671 15.72 16.9071 14.88L11.7337 2.92C11.4937 2.36 10.9471 2 10.3337 2C9.72042 2 9.17375 2.36 8.93375 2.92L3.76042 14.88C3.40042 15.72 4.02708 16.6667 4.94708 16.6667C5.46708 16.6667 5.93375 16.3467 6.13375 15.8667L7.00042 13.7333ZM10.3337 4.64L12.8271 11.3333H7.84042L10.3337 4.64Z" fill="#C1C6CD"/>
+<path d="M1 18.6667C1 19.4 1.6 20 2.33333 20H18.3333C19.0667 20 19.6667 19.4 19.6667 18.6667C19.6667 17.9333 19.0667 17.3333 18.3333 17.3333H2.33333C1.6 17.3333 1 17.9333 1 18.6667ZM7 11.7333H13.6667L14.5467 13.8667C14.7467 14.3467 15.2133 14.6667 15.7333 14.6667C16.6533 14.6667 17.2667 13.72 16.9067 12.88L11.7333 0.92C11.4933 0.36 10.9467 0 10.3333 0C9.72 0 9.17333 0.36 8.93333 0.92L3.76 12.88C3.4 13.72 4.02667 14.6667 4.94667 14.6667C5.46667 14.6667 5.93333 14.3467 6.13333 13.8667L7 11.7333ZM10.3333 2.64L12.8267 9.33333H7.84L10.3333 2.64Z" fill="#C1C6CD"/>
-<path d="M0.5 9.66927C0.5 10.6787 1.32386 11.5026 2.33333 11.5026H18.3333C19.3428 11.5026 20.1667 10.6787 20.1667 9.66927C20.1667 8.6598 19.3428 7.83594 18.3333 7.83594H2.33333C1.32386 7.83594 0.5 8.6598 0.5 9.66927Z" fill="#C1C6CD" stroke="white"/>
 </g>
 <defs>
-<clipPath id="clip0_1456_146365">
+<clipPath id="clip0_1456_146350">
 <rect width="20" height="20" fill="white"/>
 </clipPath>
 </defs>

src/components/views/rooms/EmojiButton.tsx

@@ -0,0 +1,75 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import classNames from "classnames";
+import React, { useContext } from "react";
+
+import { _t } from "../../../languageHandler";
+import ContextMenu, { aboveLeftOf, AboveLeftOf, useContextMenu } from "../../structures/ContextMenu";
+import EmojiPicker from "../emojipicker/EmojiPicker";
+import { CollapsibleButton } from "./CollapsibleButton";
+import { OverflowMenuContext } from "./MessageComposerButtons";
+
+interface IEmojiButtonProps {
+    addEmoji: (unicode: string) => boolean;
+    menuPosition: AboveLeftOf;
+    className?: string;
+}
+
+export function EmojiButton({ addEmoji, menuPosition, className }: IEmojiButtonProps) {
+    const overflowMenuCloser = useContext(OverflowMenuContext);
+    const [menuDisplayed, button, openMenu, closeMenu] = useContextMenu();
+
+    let contextMenu: React.ReactElement | null = null;
+    if (menuDisplayed && button.current) {
+        const position = (
+            menuPosition ?? aboveLeftOf(button.current.getBoundingClientRect())
+        );
+
+        contextMenu = <ContextMenu
+            {...position}
+            onFinished={() => {
+                closeMenu();
+                overflowMenuCloser?.();
+            }}
+            managed={false}
+        >
+            <EmojiPicker onChoose={addEmoji} showQuickReactions={true} />
+        </ContextMenu>;
+    }
+
+    const computedClassName = classNames(
+        "mx_EmojiButton",
+        className,
+        {
+            "mx_EmojiButton_highlight": menuDisplayed,
+        },
+    );
+
+    // TODO: replace ContextMenuTooltipButton with a unified representation of
+    // the header buttons and the right panel buttons
+    return <>
+        <CollapsibleButton
+            className={computedClassName}
+            iconClassName="mx_EmojiButton_icon"
+            onClick={openMenu}
+            title={_t("Emoji")}
+            inputRef={button}
+        />
+
+        { contextMenu }
+    </>;
+}

src/components/views/rooms/MessageComposer.tsx

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import React, { createRef } from 'react';
+import React, { createRef, ReactNode } from 'react';
 import classNames from 'classnames';
 import { IEventRelation, MatrixEvent } from "matrix-js-sdk/src/models/event";
 import { Room } from "matrix-js-sdk/src/models/room";
@@ -31,7 +31,7 @@ import Stickerpicker from './Stickerpicker';
 import { makeRoomPermalink, RoomPermalinkCreator } from '../../../utils/permalinks/Permalinks';
 import E2EIcon from './E2EIcon';
 import SettingsStore from "../../../settings/SettingsStore";
-import { aboveLeftOf, AboveLeftOf } from "../../structures/ContextMenu";
+import { aboveLeftOf } from "../../structures/ContextMenu";
 import AccessibleTooltipButton from "../elements/AccessibleTooltipButton";
 import ReplyPreview from "./ReplyPreview";
 import { UPDATE_EVENT } from "../../../stores/AsyncStore";
@@ -420,33 +420,48 @@ export class MessageComposer extends React.Component<IProps, IState> {
         return this.state.showStickersButton && !isLocalRoom(this.props.room);
     }
 
-    public render() {
+    private getMenuPosition() {
-        const controls = [
-            this.props.e2eStatus ?
-                <E2EIcon key="e2eIcon" status={this.props.e2eStatus} className="mx_MessageComposer_e2eIcon" /> :
-                null,
-        ];
-
-        let menuPosition: AboveLeftOf | undefined;
         if (this.ref.current) {
+            const hasFormattingButtons = this.state.isWysiwygLabEnabled && this.state.isRichTextEnabled;
             const contentRect = this.ref.current.getBoundingClientRect();
-            menuPosition = aboveLeftOf(contentRect);
+            // Here we need to remove the all the extra space above the editor
+            // Instead of doing a querySelector or pass a ref to find the compute the height formatting buttons
+            // We are using an arbitrary value, the formatting buttons height doesn't change during the lifecycle of the component
+            // It's easier to just use a constant here instead of an over-engineering way to find the height
+            const heightToRemove = hasFormattingButtons ? 36 : 0;
+            const fixedRect = new DOMRect(
+                contentRect.x,
+                contentRect.y + heightToRemove,
+                contentRect.width,
+                contentRect.height - heightToRemove);
+            return aboveLeftOf(fixedRect);
+        }
     }
 
+    public render() {
+        const hasE2EIcon = Boolean(!this.state.isWysiwygLabEnabled && this.props.e2eStatus);
+        const e2eIcon = hasE2EIcon &&
+                <E2EIcon key="e2eIcon" status={this.props.e2eStatus} className="mx_MessageComposer_e2eIcon" />;
+
+        const controls: ReactNode[] = [];
+        const menuPosition = this.getMenuPosition();
+
         const canSendMessages = this.context.canSendMessages && !this.context.tombstone;
+        let composer: ReactNode;
         if (canSendMessages) {
-            if (this.state.isWysiwygLabEnabled) {
+            if (this.state.isWysiwygLabEnabled && menuPosition) {
-                controls.push(
+                composer =
                     <SendWysiwygComposer key="controls_input"
                         disabled={this.state.haveRecording}
                         onChange={this.onWysiwygChange}
                         onSend={this.sendMessage}
                         isRichTextEnabled={this.state.isRichTextEnabled}
                         initialContent={this.state.initialComposerContent}
-                    />,
+                        e2eStatus={this.props.e2eStatus}
-                );
+                        menuPosition={menuPosition}
+                    />;
             } else {
-                controls.push(
+                composer =
                     <SendMessageComposer
                         ref={this.messageComposerInput}
                         key="controls_input"
@@ -458,8 +473,7 @@ export class MessageComposer extends React.Component<IProps, IState> {
                         onChange={this.onChange}
                         disabled={this.state.haveRecording}
                         toggleStickerPickerOpen={this.toggleStickerPickerOpen}
-                    />,
+                    />;
-                );
             }
 
             controls.push(<VoiceRecordComposerTile
@@ -529,8 +543,8 @@ export class MessageComposer extends React.Component<IProps, IState> {
         const classes = classNames({
             "mx_MessageComposer": true,
             "mx_MessageComposer--compact": this.props.compact,
-            "mx_MessageComposer_e2eStatus": this.props.e2eStatus != undefined,
+            "mx_MessageComposer_e2eStatus": hasE2EIcon,
-            "mx_MessageComposer_wysiwyg": this.state.isWysiwygLabEnabled && this.state.isRichTextEnabled,
+            "mx_MessageComposer_wysiwyg": this.state.isWysiwygLabEnabled,
         });
 
         return (
@@ -541,6 +555,9 @@ export class MessageComposer extends React.Component<IProps, IState> {
                         replyToEvent={this.props.replyToEvent}
                         permalinkCreator={this.props.permalinkCreator} />
                     <div className="mx_MessageComposer_row">
+                        { e2eIcon }
+                        { composer }
+                        <div className="mx_MessageComposer_actions">
                             { controls }
                             { canSendMessages && <MessageComposerButtons
                                 addEmoji={this.addEmoji}
@@ -559,7 +576,6 @@ export class MessageComposer extends React.Component<IProps, IState> {
                                 showLocationButton={!window.electron}
                                 showPollsButton={this.state.showPollsButton}
                                 showStickersButton={this.showStickersButton}
-                            showComposerModeButton={this.state.isWysiwygLabEnabled}
                                 isRichTextEnabled={this.state.isRichTextEnabled}
                                 onComposerModeClick={this.onRichTextToggle}
                                 toggleButtonMenu={this.toggleButtonMenu}
@@ -583,6 +599,7 @@ export class MessageComposer extends React.Component<IProps, IState> {
                         </div>
                     </div>
                 </div>
+            </div>
         );
     }
 }

src/components/views/rooms/MessageComposerButtons.tsx

@@ -25,9 +25,8 @@ import { THREAD_RELATION_TYPE } from 'matrix-js-sdk/src/models/thread';
 import { _t } from '../../../languageHandler';
 import AccessibleTooltipButton from "../elements/AccessibleTooltipButton";
 import { CollapsibleButton } from './CollapsibleButton';
-import ContextMenu, { aboveLeftOf, AboveLeftOf, useContextMenu } from '../../structures/ContextMenu';
+import { AboveLeftOf } from '../../structures/ContextMenu';
 import dis from '../../../dispatcher/dispatcher';
-import EmojiPicker from '../emojipicker/EmojiPicker';
 import ErrorDialog from "../dialogs/ErrorDialog";
 import LocationButton from '../location/LocationButton';
 import Modal from "../../../Modal";
@@ -39,6 +38,8 @@ import RoomContext from '../../../contexts/RoomContext';
 import { useDispatcher } from "../../../hooks/useDispatcher";
 import { chromeFileInputFix } from "../../../utils/BrowserWorkarounds";
 import IconizedContextMenu, { IconizedContextMenuOptionList } from '../context_menus/IconizedContextMenu';
+import { EmojiButton } from './EmojiButton';
+import { useSettingValue } from '../../../hooks/useSettings';
 
 interface IProps {
     addEmoji: (emoji: string) => boolean;
@@ -56,7 +57,6 @@ interface IProps {
     showVoiceBroadcastButton: boolean;
     onStartVoiceBroadcastClick: () => void;
     isRichTextEnabled: boolean;
-    showComposerModeButton: boolean;
     onComposerModeClick: () => void;
 }
 
@@ -67,6 +67,8 @@ const MessageComposerButtons: React.FC<IProps> = (props: IProps) => {
     const matrixClient: MatrixClient = useContext(MatrixClientContext);
     const { room, roomId, narrow } = useContext(RoomContext);
 
+    const isWysiwygLabEnabled = useSettingValue<boolean>('feature_wysiwyg_composer');
+
     if (props.haveRecording) {
         return null;
     }
@@ -75,6 +77,8 @@ const MessageComposerButtons: React.FC<IProps> = (props: IProps) => {
     let moreButtons: ReactElement[];
     if (narrow) {
         mainButtons = [
+            isWysiwygLabEnabled ?
+                <ComposerModeButton key="composerModeButton" isRichTextEnabled={props.isRichTextEnabled} onClick={props.onComposerModeClick} /> :
                 emojiButton(props),
         ];
         moreButtons = [
@@ -87,9 +91,9 @@ const MessageComposerButtons: React.FC<IProps> = (props: IProps) => {
         ];
     } else {
         mainButtons = [
+            isWysiwygLabEnabled ?
+                <ComposerModeButton key="composerModeButton" isRichTextEnabled={props.isRichTextEnabled} onClick={props.onComposerModeClick} /> :
                 emojiButton(props),
-            props.showComposerModeButton &&
-                <ComposerModeButton key="composerModeButton" isRichTextEnabled={props.isRichTextEnabled} onClick={props.onComposerModeClick} />,
             uploadButton(), // props passed via UploadButtonContext
         ];
         moreButtons = [
@@ -139,58 +143,10 @@ function emojiButton(props: IProps): ReactElement {
         key="emoji_button"
         addEmoji={props.addEmoji}
         menuPosition={props.menuPosition}
+        className="mx_MessageComposer_button"
     />;
 }
 
-interface IEmojiButtonProps {
-    addEmoji: (unicode: string) => boolean;
-    menuPosition: AboveLeftOf;
-}
-
-const EmojiButton: React.FC<IEmojiButtonProps> = ({ addEmoji, menuPosition }) => {
-    const overflowMenuCloser = useContext(OverflowMenuContext);
-    const [menuDisplayed, button, openMenu, closeMenu] = useContextMenu();
-
-    let contextMenu: React.ReactElement | null = null;
-    if (menuDisplayed) {
-        const position = (
-            menuPosition ?? aboveLeftOf(button.current.getBoundingClientRect())
-        );
-
-        contextMenu = <ContextMenu
-            {...position}
-            onFinished={() => {
-                closeMenu();
-                overflowMenuCloser?.();
-            }}
-            managed={false}
-        >
-            <EmojiPicker onChoose={addEmoji} showQuickReactions={true} />
-        </ContextMenu>;
-    }
-
-    const className = classNames(
-        "mx_MessageComposer_button",
-        {
-            "mx_MessageComposer_button_highlight": menuDisplayed,
-        },
-    );
-
-    // TODO: replace ContextMenuTooltipButton with a unified representation of
-    // the header buttons and the right panel buttons
-    return <React.Fragment>
-        <CollapsibleButton
-            className={className}
-            iconClassName="mx_MessageComposer_emoji"
-            onClick={openMenu}
-            title={_t("Emoji")}
-            inputRef={button}
-        />
-
-        { contextMenu }
-    </React.Fragment>;
-};
-
 function uploadButton(): ReactElement {
     return <UploadButton key="controls_upload" />;
 }
@@ -408,7 +364,7 @@ interface WysiwygToggleButtonProps {
 }
 
 function ComposerModeButton({ isRichTextEnabled, onClick }: WysiwygToggleButtonProps) {
-    const title = isRichTextEnabled ? _t("Show plain text") : _t("Show formatting");
+    const title = isRichTextEnabled ? _t("Hide formatting") : _t("Show formatting");
 
     return <CollapsibleButton
         className="mx_MessageComposer_button"

src/components/views/rooms/wysiwyg_composer/SendWysiwygComposer.tsx

@@ -14,21 +14,28 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import React, { forwardRef, RefObject } from 'react';
+import React, { ForwardedRef, forwardRef, MutableRefObject } from 'react';
 
 import { useWysiwygSendActionHandler } from './hooks/useWysiwygSendActionHandler';
 import { WysiwygComposer } from './components/WysiwygComposer';
 import { PlainTextComposer } from './components/PlainTextComposer';
 import { ComposerFunctions } from './types';
+import { E2EStatus } from '../../../../utils/ShieldUtils';
+import E2EIcon from '../E2EIcon';
+import { EmojiButton } from '../EmojiButton';
+import { AboveLeftOf } from '../../../structures/ContextMenu';
 
 interface ContentProps {
-    disabled: boolean;
+    disabled?: boolean;
     composerFunctions: ComposerFunctions;
 }
 
 const Content = forwardRef<HTMLElement, ContentProps>(
-    function Content({ disabled, composerFunctions }: ContentProps, forwardRef: RefObject<HTMLElement>) {
+    function Content(
-        useWysiwygSendActionHandler(disabled, forwardRef, composerFunctions);
+        { disabled = false, composerFunctions }: ContentProps,
+        forwardRef: ForwardedRef<HTMLElement>,
+    ) {
+        useWysiwygSendActionHandler(disabled, forwardRef as MutableRefObject<HTMLElement>, composerFunctions);
         return null;
     },
 );
@@ -37,14 +44,23 @@ interface SendWysiwygComposerProps {
     initialContent?: string;
     isRichTextEnabled: boolean;
     disabled?: boolean;
+    e2eStatus?: E2EStatus;
     onChange: (content: string) => void;
     onSend: () => void;
+    menuPosition: AboveLeftOf;
 }
 
-export function SendWysiwygComposer({ isRichTextEnabled, ...props }: SendWysiwygComposerProps) {
+export function SendWysiwygComposer(
+    { isRichTextEnabled, e2eStatus, menuPosition, ...props }: SendWysiwygComposerProps) {
     const Composer = isRichTextEnabled ? WysiwygComposer : PlainTextComposer;
 
-    return <Composer className="mx_SendWysiwygComposer" {...props}>
+    return <Composer
+        className="mx_SendWysiwygComposer"
+        leftComponent={e2eStatus && <E2EIcon status={e2eStatus} />}
+        // TODO add emoji support
+        rightComponent={<EmojiButton menuPosition={menuPosition} addEmoji={() => false} />}
+        {...props}
+    >
         { (ref, composerFunctions) => (
             <Content disabled={props.disabled} ref={ref} composerFunctions={composerFunctions} />
         ) }

src/components/views/rooms/wysiwyg_composer/components/Editor.tsx

@@ -14,19 +14,33 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import React, { forwardRef, memo } from 'react';
+import React, { forwardRef, memo, MutableRefObject, ReactNode } from 'react';
+
+import { useIsExpanded } from '../hooks/useIsExpanded';
+
+const HEIGHT_BREAKING_POINT = 20;
 
 interface EditorProps {
     disabled: boolean;
+    leftComponent?: ReactNode;
+    rightComponent?: ReactNode;
 }
 
 export const Editor = memo(
     forwardRef<HTMLDivElement, EditorProps>(
-        function Editor({ disabled }: EditorProps, ref,
+        function Editor({ disabled, leftComponent, rightComponent }: EditorProps, ref,
         ) {
-            return <div className="mx_WysiwygComposer_container">
+            const isExpanded = useIsExpanded(ref as MutableRefObject<HTMLDivElement | null>, HEIGHT_BREAKING_POINT);
-                <div className="mx_WysiwygComposer_content"
+
-                    ref={ref!}
+            return <div
+                data-testid="WysiwygComposerEditor"
+                className="mx_WysiwygComposer_Editor"
+                data-is-expanded={isExpanded}
+            >
+                { leftComponent }
+                <div className="mx_WysiwygComposer_Editor_container">
+                    <div className="mx_WysiwygComposer_Editor_content"
+                        ref={ref}
                         contentEditable={!disabled}
                         role="textbox"
                         aria-multiline="true"
@@ -35,6 +49,8 @@ export const Editor = memo(
                         dir="auto"
                         aria-disabled={disabled}
                     />
+                </div>
+                { rightComponent }
             </div>;
         },
     ),

src/components/views/rooms/wysiwyg_composer/components/PlainTextComposer.tsx

@@ -14,9 +14,11 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+import classNames from 'classnames';
 import React, { MutableRefObject, ReactNode } from 'react';
 
 import { useComposerFunctions } from '../hooks/useComposerFunctions';
+import { useIsFocused } from '../hooks/useIsFocused';
 import { usePlainTextInitialization } from '../hooks/usePlainTextInitialization';
 import { usePlainTextListeners } from '../hooks/usePlainTextListeners';
 import { useSetCursorPosition } from '../hooks/useSetCursorPosition';
@@ -26,9 +28,11 @@ import { Editor } from "./Editor";
 interface PlainTextComposerProps {
     disabled?: boolean;
     onChange?: (content: string) => void;
-    onSend: () => void;
+    onSend?: () => void;
     initialContent?: string;
     className?: string;
+    leftComponent?: ReactNode;
+    rightComponent?: ReactNode;
     children?: (
         ref: MutableRefObject<HTMLDivElement | null>,
         composerFunctions: ComposerFunctions,
@@ -36,21 +40,32 @@ interface PlainTextComposerProps {
 }
 
 export function PlainTextComposer({
-    className, disabled, onSend, onChange, children, initialContent }: PlainTextComposerProps,
+    className,
+    disabled = false,
+    onSend,
+    onChange,
+    children,
+    initialContent,
+    leftComponent,
+    rightComponent,
+}: PlainTextComposerProps,
 ) {
     const { ref, onInput, onPaste, onKeyDown } = usePlainTextListeners(onChange, onSend);
     const composerFunctions = useComposerFunctions(ref);
     usePlainTextInitialization(initialContent, ref);
     useSetCursorPosition(disabled, ref);
+    const { isFocused, onFocus } = useIsFocused();
 
     return <div
         data-testid="PlainTextComposer"
-        className={className}
+        className={classNames(className, { [`${className}-focused`]: isFocused })}
+        onFocus={onFocus}
+        onBlur={onFocus}
         onInput={onInput}
         onPaste={onPaste}
         onKeyDown={onKeyDown}
     >
-        <Editor ref={ref} disabled={disabled} />
+        <Editor ref={ref} disabled={disabled} leftComponent={leftComponent} rightComponent={rightComponent} />
         { children?.(ref, composerFunctions) }
     </div>;
 }

src/components/views/rooms/wysiwyg_composer/components/WysiwygComposer.tsx

@@ -16,11 +16,13 @@ limitations under the License.
 
 import React, { memo, MutableRefObject, ReactNode, useEffect } from 'react';
 import { useWysiwyg, FormattingFunctions } from "@matrix-org/matrix-wysiwyg";
+import classNames from 'classnames';
 
 import { FormattingButtons } from './FormattingButtons';
 import { Editor } from './Editor';
 import { useInputEventProcessor } from '../hooks/useInputEventProcessor';
 import { useSetCursorPosition } from '../hooks/useSetCursorPosition';
+import { useIsFocused } from '../hooks/useIsFocused';
 
 interface WysiwygComposerProps {
     disabled?: boolean;
@@ -28,6 +30,8 @@ interface WysiwygComposerProps {
     onSend: () => void;
     initialContent?: string;
     className?: string;
+    leftComponent?: ReactNode;
+    rightComponent?: ReactNode;
     children?: (
         ref: MutableRefObject<HTMLDivElement | null>,
         wysiwyg: FormattingFunctions,
@@ -35,7 +39,16 @@ interface WysiwygComposerProps {
 }
 
 export const WysiwygComposer = memo(function WysiwygComposer(
-    { disabled = false, onChange, onSend, initialContent, className, children }: WysiwygComposerProps,
+    {
+        disabled = false,
+        onChange,
+        onSend,
+        initialContent,
+        className,
+        leftComponent,
+        rightComponent,
+        children,
+    }: WysiwygComposerProps,
 ) {
     const inputEventProcessor = useInputEventProcessor(onSend);
 
@@ -51,10 +64,12 @@ export const WysiwygComposer = memo(function WysiwygComposer(
     const isReady = isWysiwygReady && !disabled;
     useSetCursorPosition(!isReady, ref);
 
+    const { isFocused, onFocus } = useIsFocused();
+
     return (
-        <div data-testid="WysiwygComposer" className={className}>
+        <div data-testid="WysiwygComposer" className={classNames(className, { [`${className}-focused`]: isFocused })} onFocus={onFocus} onBlur={onFocus}>
             <FormattingButtons composer={wysiwyg} formattingStates={formattingStates} />
-            <Editor ref={ref} disabled={!isReady} />
+            <Editor ref={ref} disabled={!isReady} leftComponent={leftComponent} rightComponent={rightComponent} />
             { children?.(ref, wysiwyg) }
         </div>
     );

src/components/views/rooms/wysiwyg_composer/hooks/useIsExpanded.ts

@@ -0,0 +1,37 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { MutableRefObject, useEffect, useState } from "react";
+
+export function useIsExpanded(ref: MutableRefObject<HTMLElement | null>, breakingPoint: number) {
+    const [isExpanded, setIsExpanded] = useState(false);
+    useEffect(() => {
+        if (ref.current) {
+            const editor = ref.current;
+            const resizeObserver = new ResizeObserver(entries => {
+                requestAnimationFrame(() => {
+                    const height = entries[0]?.contentBoxSize?.[0].blockSize;
+                    setIsExpanded(height >= breakingPoint);
+                });
+            });
+
+            resizeObserver.observe(editor);
+            return () => resizeObserver.unobserve(editor);
+        }
+    }, [ref, breakingPoint]);
+
+    return isExpanded;
+}

src/components/views/rooms/wysiwyg_composer/hooks/useIsFocused.ts

@@ -0,0 +1,36 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { FocusEvent, useCallback, useEffect, useRef, useState } from "react";
+
+export function useIsFocused() {
+    const [isFocused, setIsFocused] = useState(false);
+    const timeoutIDRef = useRef<number>();
+
+    useEffect(() => () => clearTimeout(timeoutIDRef.current), [timeoutIDRef]);
+    const onFocus = useCallback((event: FocusEvent<HTMLElement>) => {
+        clearTimeout(timeoutIDRef.current);
+        if (event.type === 'focus') {
+            setIsFocused(true);
+        } else {
+            // To avoid a blink when we switch mode between plain text and rich text mode
+            // We delay the unfocused action
+            timeoutIDRef.current = setTimeout(() => setIsFocused(false), 100);
+        }
+    }, [setIsFocused, timeoutIDRef]);
+
+    return { isFocused, onFocus };
+}

src/components/views/rooms/wysiwyg_composer/hooks/usePlainTextInitialization.ts

@@ -16,7 +16,7 @@ limitations under the License.
 
 import { RefObject, useEffect } from "react";
 
-export function usePlainTextInitialization(initialContent: string, ref: RefObject<HTMLElement>) {
+export function usePlainTextInitialization(initialContent = '', ref: RefObject<HTMLElement>) {
     useEffect(() => {
         if (ref.current) {
             ref.current.innerText = initialContent;

src/components/views/rooms/wysiwyg_composer/hooks/usePlainTextListeners.ts

@@ -22,18 +22,18 @@ function isDivElement(target: EventTarget): target is HTMLDivElement {
     return target instanceof HTMLDivElement;
 }
 
-export function usePlainTextListeners(onChange: (content: string) => void, onSend: () => void) {
+export function usePlainTextListeners(onChange?: (content: string) => void, onSend?: () => void) {
-    const ref = useRef<HTMLDivElement>();
+    const ref = useRef<HTMLDivElement | null>(null);
     const send = useCallback((() => {
         if (ref.current) {
             ref.current.innerHTML = '';
         }
-        onSend();
+        onSend?.();
     }), [ref, onSend]);
 
     const onInput = useCallback((event: SyntheticEvent<HTMLDivElement, InputEvent | ClipboardEvent>) => {
         if (isDivElement(event.target)) {
-            onChange(event.target.innerHTML);
+            onChange?.(event.target.innerHTML);
         }
     }, [onChange]);
 

src/components/views/rooms/wysiwyg_composer/hooks/useWysiwygEditActionHandler.ts

@@ -28,7 +28,7 @@ export function useWysiwygEditActionHandler(
     composerElement: RefObject<HTMLElement>,
 ) {
     const roomContext = useRoomContext();
-    const timeoutId = useRef<number>();
+    const timeoutId = useRef<number | null>(null);
 
     const handler = useCallback((payload: ActionPayload) => {
         // don't let the user into the composer if it is disabled - all of these branches lead

src/components/views/rooms/wysiwyg_composer/hooks/useWysiwygSendActionHandler.ts

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { RefObject, useCallback, useRef } from "react";
+import { MutableRefObject, useCallback, useRef } from "react";
 
 import defaultDispatcher from "../../../../../dispatcher/dispatcher";
 import { Action } from "../../../../../dispatcher/actions";
@@ -26,16 +26,16 @@ import { ComposerFunctions } from "../types";
 
 export function useWysiwygSendActionHandler(
     disabled: boolean,
-    composerElement: RefObject<HTMLElement>,
+    composerElement: MutableRefObject<HTMLElement>,
     composerFunctions: ComposerFunctions,
 ) {
     const roomContext = useRoomContext();
-    const timeoutId = useRef<number>();
+    const timeoutId = useRef<number | null>(null);
 
     const handler = useCallback((payload: ActionPayload) => {
         // don't let the user into the composer if it is disabled - all of these branches lead
         // to the cursor being in the composer
-        if (disabled || !composerElement.current) return;
+        if (disabled || !composerElement?.current) return;
 
         const context = payload.context ?? TimelineRenderingType.Room;
 

src/components/views/rooms/wysiwyg_composer/hooks/utils.ts

@@ -14,14 +14,16 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+import { MutableRefObject } from "react";
+
 import { TimelineRenderingType } from "../../../../../contexts/RoomContext";
 import { IRoomState } from "../../../../structures/RoomView";
 
 export function focusComposer(
-    composerElement: React.MutableRefObject<HTMLElement>,
+    composerElement: MutableRefObject<HTMLElement | null>,
     renderingType: TimelineRenderingType,
     roomContext: IRoomState,
-    timeoutId: React.MutableRefObject<number>,
+    timeoutId: MutableRefObject<number | null>,
 ) {
     if (renderingType === roomContext.timelineRenderingType) {
         // Immediately set the focus, so if you start typing it

src/i18n/strings/en_EN.json

@@ -1829,6 +1829,7 @@
     "This room is end-to-end encrypted": "This room is end-to-end encrypted",
     "Everyone in this room is verified": "Everyone in this room is verified",
     "Edit message": "Edit message",
+    "Emoji": "Emoji",
     "Mod": "Mod",
     "From a thread": "From a thread",
     "This event could not be displayed": "This event could not be displayed",
@@ -1878,13 +1879,12 @@
     "You do not have permission to post to this room": "You do not have permission to post to this room",
     "%(seconds)ss left": "%(seconds)ss left",
     "Send voice message": "Send voice message",
-    "Emoji": "Emoji",
     "Hide stickers": "Hide stickers",
     "Sticker": "Sticker",
     "Voice Message": "Voice Message",
     "You do not have permission to start polls in this room.": "You do not have permission to start polls in this room.",
     "Poll": "Poll",
-    "Show plain text": "Show plain text",
+    "Hide formatting": "Hide formatting",
     "Show formatting": "Show formatting",
     "Bold": "Bold",
     "Italics": "Italics",

test/components/structures/__snapshots__/RoomView-test.tsx.snap

@@ -4,6 +4,6 @@ exports[`RoomView for a local room in state CREATING should match the snapshot 1
 
 exports[`RoomView for a local room in state ERROR should match the snapshot 1`] = `"<div class="mx_RoomView mx_RoomView--local"><header class="mx_RoomHeader light-panel"><div class="mx_RoomHeader_wrapper"><div class="mx_RoomHeader_avatar"><div class="mx_DecoratedRoomAvatar"><span class="mx_BaseAvatar" role="presentation"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 15.600000000000001px; width: 24px; line-height: 24px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 24px; height: 24px;" aria-hidden="true"></span></div></div><div class="mx_E2EIcon mx_E2EIcon_normal mx_RoomHeader_icon"></div><div class="mx_RoomHeader_name mx_RoomHeader_name--textonly"><div dir="auto" class="mx_RoomHeader_nametext" title="@user:example.com" role="heading" aria-level="1">@user:example.com</div></div><div class="mx_RoomHeader_topic mx_RoomTopic" dir="auto"><div tabindex="0"><div><span dir="auto"></span></div></div></div></div></header><main class="mx_RoomView_body"><div class="mx_RoomView_timeline"><div class="mx_AutoHideScrollbar mx_ScrollPanel mx_RoomView_messagePanel" tabindex="-1"><div class="mx_RoomView_messageListWrapper"><ol class="mx_RoomView_MessageList" aria-live="polite" style="height: 400px;"><li class="mx_NewRoomIntro"><div class="mx_EventTileBubble mx_cryptoEvent mx_cryptoEvent_icon_warning"><div class="mx_EventTileBubble_title">End-to-end encryption isn't enabled</div><div class="mx_EventTileBubble_subtitle"><span> Your private messages are normally encrypted, but this room isn't. Usually this is due to an unsupported device or method being used, like email invites.  </span></div></div><span aria-label="Avatar" aria-live="off" role="button" tabindex="0" class="mx_AccessibleButton mx_BaseAvatar"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 33.800000000000004px; width: 52px; line-height: 52px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 52px; height: 52px;" aria-hidden="true"></span><h2>@user:example.com</h2><p><span>Send your first message to invite <b>@user:example.com</b> to chat</span></p></li></ol></div></div></div><div class="mx_RoomStatusBar mx_RoomStatusBar_unsentMessages"><div role="alert"><div class="mx_RoomStatusBar_unsentBadge"><div class="mx_NotificationBadge mx_NotificationBadge_visible mx_NotificationBadge_highlighted mx_NotificationBadge_2char"><span class="mx_NotificationBadge_count">!</span></div></div><div><div class="mx_RoomStatusBar_unsentTitle">Some of your messages have not been sent</div></div><div class="mx_RoomStatusBar_unsentButtonBar"><div role="button" tabindex="0" class="mx_AccessibleButton mx_RoomStatusBar_unsentRetry">Retry</div></div></div></div></main></div>"`;
 
-exports[`RoomView for a local room in state NEW should match the snapshot 1`] = `"<div class="mx_RoomView mx_RoomView--local"><header class="mx_RoomHeader light-panel"><div class="mx_RoomHeader_wrapper"><div class="mx_RoomHeader_avatar"><div class="mx_DecoratedRoomAvatar"><span class="mx_BaseAvatar" role="presentation"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 15.600000000000001px; width: 24px; line-height: 24px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 24px; height: 24px;" aria-hidden="true"></span></div></div><div class="mx_E2EIcon mx_E2EIcon_normal mx_RoomHeader_icon"></div><div class="mx_RoomHeader_name mx_RoomHeader_name--textonly"><div dir="auto" class="mx_RoomHeader_nametext" title="@user:example.com" role="heading" aria-level="1">@user:example.com</div></div><div class="mx_RoomHeader_topic mx_RoomTopic" dir="auto"><div tabindex="0"><div><span dir="auto"></span></div></div></div></div></header><main class="mx_RoomView_body"><div class="mx_RoomView_timeline"><div class="mx_AutoHideScrollbar mx_ScrollPanel mx_RoomView_messagePanel" tabindex="-1"><div class="mx_RoomView_messageListWrapper"><ol class="mx_RoomView_MessageList" aria-live="polite" style="height: 400px;"><li class="mx_NewRoomIntro"><div class="mx_EventTileBubble mx_cryptoEvent mx_cryptoEvent_icon_warning"><div class="mx_EventTileBubble_title">End-to-end encryption isn't enabled</div><div class="mx_EventTileBubble_subtitle"><span> Your private messages are normally encrypted, but this room isn't. Usually this is due to an unsupported device or method being used, like email invites.  </span></div></div><span aria-label="Avatar" aria-live="off" role="button" tabindex="0" class="mx_AccessibleButton mx_BaseAvatar"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 33.800000000000004px; width: 52px; line-height: 52px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 52px; height: 52px;" aria-hidden="true"></span><h2>@user:example.com</h2><p><span>Send your first message to invite <b>@user:example.com</b> to chat</span></p></li></ol></div></div></div><div class="mx_MessageComposer"><div class="mx_MessageComposer_wrapper"><div class="mx_MessageComposer_row"><div class="mx_SendMessageComposer"><div class="mx_BasicMessageComposer"><div class="mx_MessageComposerFormatBar"><button type="button" aria-label="Bold" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconBold"></button><button type="button" aria-label="Italics" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconItalic"></button><button type="button" aria-label="Strikethrough" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconStrikethrough"></button><button type="button" aria-label="Code block" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconCode"></button><button type="button" aria-label="Quote" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconQuote"></button><button type="button" aria-label="Insert link" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconInsertLink"></button></div><div class="mx_BasicMessageComposer_input mx_BasicMessageComposer_input_shouldShowPillAvatar mx_BasicMessageComposer_inputEmpty" contenteditable="true" tabindex="0" aria-label="Send a message…" role="textbox" aria-multiline="true" aria-autocomplete="list" aria-haspopup="listbox" dir="auto" aria-disabled="false" data-testid="basicmessagecomposer" style="--placeholder: 'Send a message…';"><div><br></div></div></div></div><div aria-label="Emoji" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_emoji"></div><div aria-label="Attachment" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_upload"></div><div aria-label="More options" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_buttonMenu"></div><input type="file" style="display: none;" multiple=""></div></div></div></main></div>"`;
+exports[`RoomView for a local room in state NEW should match the snapshot 1`] = `"<div class="mx_RoomView mx_RoomView--local"><header class="mx_RoomHeader light-panel"><div class="mx_RoomHeader_wrapper"><div class="mx_RoomHeader_avatar"><div class="mx_DecoratedRoomAvatar"><span class="mx_BaseAvatar" role="presentation"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 15.600000000000001px; width: 24px; line-height: 24px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 24px; height: 24px;" aria-hidden="true"></span></div></div><div class="mx_E2EIcon mx_E2EIcon_normal mx_RoomHeader_icon"></div><div class="mx_RoomHeader_name mx_RoomHeader_name--textonly"><div dir="auto" class="mx_RoomHeader_nametext" title="@user:example.com" role="heading" aria-level="1">@user:example.com</div></div><div class="mx_RoomHeader_topic mx_RoomTopic" dir="auto"><div tabindex="0"><div><span dir="auto"></span></div></div></div></div></header><main class="mx_RoomView_body"><div class="mx_RoomView_timeline"><div class="mx_AutoHideScrollbar mx_ScrollPanel mx_RoomView_messagePanel" tabindex="-1"><div class="mx_RoomView_messageListWrapper"><ol class="mx_RoomView_MessageList" aria-live="polite" style="height: 400px;"><li class="mx_NewRoomIntro"><div class="mx_EventTileBubble mx_cryptoEvent mx_cryptoEvent_icon_warning"><div class="mx_EventTileBubble_title">End-to-end encryption isn't enabled</div><div class="mx_EventTileBubble_subtitle"><span> Your private messages are normally encrypted, but this room isn't. Usually this is due to an unsupported device or method being used, like email invites.  </span></div></div><span aria-label="Avatar" aria-live="off" role="button" tabindex="0" class="mx_AccessibleButton mx_BaseAvatar"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 33.800000000000004px; width: 52px; line-height: 52px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 52px; height: 52px;" aria-hidden="true"></span><h2>@user:example.com</h2><p><span>Send your first message to invite <b>@user:example.com</b> to chat</span></p></li></ol></div></div></div><div class="mx_MessageComposer"><div class="mx_MessageComposer_wrapper"><div class="mx_MessageComposer_row"><div class="mx_SendMessageComposer"><div class="mx_BasicMessageComposer"><div class="mx_MessageComposerFormatBar"><button type="button" aria-label="Bold" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconBold"></button><button type="button" aria-label="Italics" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconItalic"></button><button type="button" aria-label="Strikethrough" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconStrikethrough"></button><button type="button" aria-label="Code block" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconCode"></button><button type="button" aria-label="Quote" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconQuote"></button><button type="button" aria-label="Insert link" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconInsertLink"></button></div><div class="mx_BasicMessageComposer_input mx_BasicMessageComposer_input_shouldShowPillAvatar mx_BasicMessageComposer_inputEmpty" contenteditable="true" tabindex="0" aria-label="Send a message…" role="textbox" aria-multiline="true" aria-autocomplete="list" aria-haspopup="listbox" dir="auto" aria-disabled="false" data-testid="basicmessagecomposer" style="--placeholder: 'Send a message…';"><div><br></div></div></div></div><div class="mx_MessageComposer_actions"><div aria-label="Emoji" role="button" tabindex="0" class="mx_AccessibleButton mx_EmojiButton mx_MessageComposer_button mx_EmojiButton_icon"></div><div aria-label="Attachment" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_upload"></div><div aria-label="More options" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_buttonMenu"></div><input type="file" style="display: none;" multiple=""></div></div></div></div></main></div>"`;
 
-exports[`RoomView for a local room in state NEW that is encrypted should match the snapshot 1`] = `"<div class="mx_RoomView mx_RoomView--local"><header class="mx_RoomHeader light-panel"><div class="mx_RoomHeader_wrapper"><div class="mx_RoomHeader_avatar"><div class="mx_DecoratedRoomAvatar"><span class="mx_BaseAvatar" role="presentation"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 15.600000000000001px; width: 24px; line-height: 24px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 24px; height: 24px;" aria-hidden="true"></span></div></div><div class="mx_E2EIcon mx_E2EIcon_normal mx_RoomHeader_icon"></div><div class="mx_RoomHeader_name mx_RoomHeader_name--textonly"><div dir="auto" class="mx_RoomHeader_nametext" title="@user:example.com" role="heading" aria-level="1">@user:example.com</div></div><div class="mx_RoomHeader_topic mx_RoomTopic" dir="auto"><div tabindex="0"><div><span dir="auto"></span></div></div></div></div></header><main class="mx_RoomView_body"><div class="mx_RoomView_timeline"><div class="mx_AutoHideScrollbar mx_ScrollPanel mx_RoomView_messagePanel" tabindex="-1"><div class="mx_RoomView_messageListWrapper"><ol class="mx_RoomView_MessageList" aria-live="polite" style="height: 400px;"><div class="mx_EventTileBubble mx_cryptoEvent mx_cryptoEvent_icon"><div class="mx_EventTileBubble_title">Encryption enabled</div><div class="mx_EventTileBubble_subtitle">Messages in this chat will be end-to-end encrypted.</div></div><li class="mx_NewRoomIntro"><span aria-label="Avatar" aria-live="off" role="button" tabindex="0" class="mx_AccessibleButton mx_BaseAvatar"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 33.800000000000004px; width: 52px; line-height: 52px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 52px; height: 52px;" aria-hidden="true"></span><h2>@user:example.com</h2><p><span>Send your first message to invite <b>@user:example.com</b> to chat</span></p></li></ol></div></div></div><div class="mx_MessageComposer"><div class="mx_MessageComposer_wrapper"><div class="mx_MessageComposer_row"><div class="mx_SendMessageComposer"><div class="mx_BasicMessageComposer"><div class="mx_MessageComposerFormatBar"><button type="button" aria-label="Bold" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconBold"></button><button type="button" aria-label="Italics" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconItalic"></button><button type="button" aria-label="Strikethrough" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconStrikethrough"></button><button type="button" aria-label="Code block" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconCode"></button><button type="button" aria-label="Quote" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconQuote"></button><button type="button" aria-label="Insert link" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconInsertLink"></button></div><div class="mx_BasicMessageComposer_input mx_BasicMessageComposer_input_shouldShowPillAvatar mx_BasicMessageComposer_inputEmpty" contenteditable="true" tabindex="0" aria-label="Send a message…" role="textbox" aria-multiline="true" aria-autocomplete="list" aria-haspopup="listbox" dir="auto" aria-disabled="false" data-testid="basicmessagecomposer" style="--placeholder: 'Send a message…';"><div><br></div></div></div></div><div aria-label="Emoji" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_emoji"></div><div aria-label="Attachment" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_upload"></div><div aria-label="More options" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_buttonMenu"></div><input type="file" style="display: none;" multiple=""></div></div></div></main></div>"`;
+exports[`RoomView for a local room in state NEW that is encrypted should match the snapshot 1`] = `"<div class="mx_RoomView mx_RoomView--local"><header class="mx_RoomHeader light-panel"><div class="mx_RoomHeader_wrapper"><div class="mx_RoomHeader_avatar"><div class="mx_DecoratedRoomAvatar"><span class="mx_BaseAvatar" role="presentation"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 15.600000000000001px; width: 24px; line-height: 24px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 24px; height: 24px;" aria-hidden="true"></span></div></div><div class="mx_E2EIcon mx_E2EIcon_normal mx_RoomHeader_icon"></div><div class="mx_RoomHeader_name mx_RoomHeader_name--textonly"><div dir="auto" class="mx_RoomHeader_nametext" title="@user:example.com" role="heading" aria-level="1">@user:example.com</div></div><div class="mx_RoomHeader_topic mx_RoomTopic" dir="auto"><div tabindex="0"><div><span dir="auto"></span></div></div></div></div></header><main class="mx_RoomView_body"><div class="mx_RoomView_timeline"><div class="mx_AutoHideScrollbar mx_ScrollPanel mx_RoomView_messagePanel" tabindex="-1"><div class="mx_RoomView_messageListWrapper"><ol class="mx_RoomView_MessageList" aria-live="polite" style="height: 400px;"><div class="mx_EventTileBubble mx_cryptoEvent mx_cryptoEvent_icon"><div class="mx_EventTileBubble_title">Encryption enabled</div><div class="mx_EventTileBubble_subtitle">Messages in this chat will be end-to-end encrypted.</div></div><li class="mx_NewRoomIntro"><span aria-label="Avatar" aria-live="off" role="button" tabindex="0" class="mx_AccessibleButton mx_BaseAvatar"><span class="mx_BaseAvatar_initial" aria-hidden="true" style="font-size: 33.800000000000004px; width: 52px; line-height: 52px;">U</span><img class="mx_BaseAvatar_image" src="data:image/png;base64,00" alt="" style="width: 52px; height: 52px;" aria-hidden="true"></span><h2>@user:example.com</h2><p><span>Send your first message to invite <b>@user:example.com</b> to chat</span></p></li></ol></div></div></div><div class="mx_MessageComposer"><div class="mx_MessageComposer_wrapper"><div class="mx_MessageComposer_row"><div class="mx_SendMessageComposer"><div class="mx_BasicMessageComposer"><div class="mx_MessageComposerFormatBar"><button type="button" aria-label="Bold" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconBold"></button><button type="button" aria-label="Italics" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconItalic"></button><button type="button" aria-label="Strikethrough" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconStrikethrough"></button><button type="button" aria-label="Code block" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconCode"></button><button type="button" aria-label="Quote" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconQuote"></button><button type="button" aria-label="Insert link" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposerFormatBar_button mx_MessageComposerFormatBar_buttonIconInsertLink"></button></div><div class="mx_BasicMessageComposer_input mx_BasicMessageComposer_input_shouldShowPillAvatar mx_BasicMessageComposer_inputEmpty" contenteditable="true" tabindex="0" aria-label="Send a message…" role="textbox" aria-multiline="true" aria-autocomplete="list" aria-haspopup="listbox" dir="auto" aria-disabled="false" data-testid="basicmessagecomposer" style="--placeholder: 'Send a message…';"><div><br></div></div></div></div><div class="mx_MessageComposer_actions"><div aria-label="Emoji" role="button" tabindex="0" class="mx_AccessibleButton mx_EmojiButton mx_MessageComposer_button mx_EmojiButton_icon"></div><div aria-label="Attachment" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_upload"></div><div aria-label="More options" role="button" tabindex="0" class="mx_AccessibleButton mx_MessageComposer_button mx_MessageComposer_buttonMenu"></div><input type="file" style="display: none;" multiple=""></div></div></div></div></main></div>"`;

test/components/views/rooms/wysiwyg_composer/SendWysiwygComposer-test.tsx

@@ -28,6 +28,7 @@ import { createTestClient, flushPromises, getRoomContext, mkEvent, mkStubRoom }
 import { SendWysiwygComposer } from "../../../../../src/components/views/rooms/wysiwyg_composer";
 import * as useComposerFunctions
     from "../../../../../src/components/views/rooms/wysiwyg_composer/hooks/useComposerFunctions";
+import { aboveLeftOf } from "../../../../../src/components/structures/ContextMenu";
 
 const mockClear = jest.fn();
 
@@ -78,7 +79,7 @@ describe('SendWysiwygComposer', () => {
         return render(
             <MatrixClientContext.Provider value={mockClient}>
                 <RoomContext.Provider value={defaultRoomContext}>
-                    <SendWysiwygComposer onChange={onChange} onSend={onSend} disabled={disabled} isRichTextEnabled={isRichTextEnabled} />
+                    <SendWysiwygComposer onChange={onChange} onSend={onSend} disabled={disabled} isRichTextEnabled={isRichTextEnabled} menuPosition={aboveLeftOf({ top: 0, bottom: 0, right: 0 })} />
                 </RoomContext.Provider>
             </MatrixClientContext.Provider>,
         );

test/components/views/rooms/wysiwyg_composer/components/PlainTextComposer-test.tsx

@@ -21,10 +21,6 @@ import userEvent from "@testing-library/user-event";
 import { PlainTextComposer }
     from "../../../../../../src/components/views/rooms/wysiwyg_composer/components/PlainTextComposer";
 
-// Work around missing ClipboardEvent type
-class MyClipboardEvent {}
-window.ClipboardEvent = MyClipboardEvent as any;
-
 describe('PlainTextComposer', () => {
     const customRender = (
         onChange = (_content: string) => void 0,
@@ -91,4 +87,46 @@ describe('PlainTextComposer', () => {
         // Then
         expect(screen.getByRole('textbox').innerHTML).toBeFalsy();
     });
+
+    it('Should have data-is-expanded when it has two lines', async () => {
+        let resizeHandler: ResizeObserverCallback = jest.fn();
+        let editor: Element | null = null;
+        jest.spyOn(global, 'ResizeObserver').mockImplementation((handler) => {
+            resizeHandler = handler;
+            return {
+                observe: (element) => {
+                    editor = element;
+                },
+                unobserve: jest.fn(),
+                disconnect: jest.fn(),
+            };
+        },
+        );
+        jest.spyOn(global, 'requestAnimationFrame').mockImplementation(cb => {
+            cb(0);
+            return 0;
+        });
+
+        //When
+        render(
+            <PlainTextComposer onChange={jest.fn()} onSend={jest.fn()} />,
+        );
+
+        // Then
+        expect(screen.getByTestId('WysiwygComposerEditor').attributes['data-is-expanded'].value).toBe('false');
+        expect(editor).toBe(screen.getByRole('textbox'));
+
+        // When
+        resizeHandler(
+            [{ contentBoxSize: [{ blockSize: 100 }] } as unknown as ResizeObserverEntry],
+            {} as ResizeObserver,
+        );
+        jest.runAllTimers();
+
+        // Then
+        expect(screen.getByTestId('WysiwygComposerEditor').attributes['data-is-expanded'].value).toBe('true');
+
+        (global.ResizeObserver as jest.Mock).mockRestore();
+        (global.requestAnimationFrame as jest.Mock).mockRestore();
+    });
 });

test/components/views/rooms/wysiwyg_composer/components/WysiwygComposer-test.tsx

@@ -23,10 +23,6 @@ import { WysiwygComposer }
     from "../../../../../../src/components/views/rooms/wysiwyg_composer/components/WysiwygComposer";
 import SettingsStore from "../../../../../../src/settings/SettingsStore";
 
-// Work around missing ClipboardEvent type
-class MyClipboardEvent {}
-window.ClipboardEvent = MyClipboardEvent as any;
-
 let inputEventProcessor: InputEventProcessor | null = null;
 
 // The wysiwyg fetch wasm bytes and a specific workaround is needed to make it works in a node (jest) environnement

test/setup/setupManualMocks.ts

@@ -31,6 +31,29 @@ class ResizeObserver {
 }
 window.ResizeObserver = ResizeObserver;
 
+// Stub DOMRect
+class DOMRect {
+    x = 0;
+    y = 0;
+    top = 0;
+    bottom = 0;
+    left = 0;
+    right = 0;
+    height = 0;
+    width = 0;
+
+    static fromRect() {
+        return new DOMRect();
+    }
+    toJSON() {}
+}
+
+window.DOMRect = DOMRect;
+
+// Work around missing ClipboardEvent type
+class MyClipboardEvent {}
+window.ClipboardEvent = MyClipboardEvent as any;
+
 // matchMedia is not included in jsdom
 const mockMatchMedia = jest.fn().mockImplementation(query => ({
     matches: false,
@@ -51,6 +74,7 @@ global.URL.revokeObjectURL = jest.fn();
 // polyfilling TextEncoder as it is not available on JSDOM
 // view https://github.com/facebook/jest/issues/9983
 global.TextEncoder = TextEncoder;
+// @ts-ignore
 global.TextDecoder = TextDecoder;
 
 // prevent errors whenever a component tries to manually scroll.
@@ -60,4 +84,5 @@ window.HTMLElement.prototype.scrollIntoView = jest.fn();
 fetchMock.config.overwriteRoutes = false;
 fetchMock.catch("");
 fetchMock.get("/image-file-stub", "image file stub");
+// @ts-ignore
 window.fetch = fetchMock.sandbox();