Move background-blur to fully css version

package.json

@@ -64,7 +64,6 @@
     "cheerio": "^1.0.0-rc.9",
     "classnames": "^2.2.6",
     "commonmark": "^0.29.3",
-    "context-filter-polyfill": "^0.2.4",
     "counterpart": "^0.18.6",
     "diff-dom": "^4.2.2",
     "diff-match-patch": "^1.0.5",
@@ -196,7 +195,6 @@
       "decoderWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js",
       "decoderWorker\\.min\\.wasm": "<rootDir>/__mocks__/empty.js",
       "waveWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js",
-      "context-filter-polyfill": "<rootDir>/__mocks__/empty.js",
       "workers/(.+)\\.worker\\.ts": "<rootDir>/__mocks__/workerMock.js",
       "RecorderWorklet": "<rootDir>/__mocks__/empty.js"
     },

res/css/structures/_BackdropPanel.scss

@@ -21,9 +21,10 @@ limitations under the License.
     height: 100vh;
     width: 100%;
     overflow: hidden;
+    filter: blur(var(--lp-background-blur));
 }
 
-.mx_BackdropPanel--canvas {
+.mx_BackdropPanel--image {
     position: absolute;
     top: 0;
     left: 0;
@@ -32,10 +33,4 @@ limitations under the License.
     pointer-events: none;
     overflow: hidden;
 
-    &:nth-of-type(2n-1) {
-        opacity: 0.2;
-    }
-    &:nth-of-type(2n) {
-        opacity: 0.1;
-    }
 }

res/css/structures/_GroupFilterPanel.scss

@@ -14,12 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_MatrixChat--with-avatar {
-    .mx_GroupFilterPanel {
-        background-color: transparent;
-    }
-}
-
 $groupFilterPanelWidth: 56px; // only applies in this file, used for calculations
 
 .mx_GroupFilterPanelContainer {
@@ -36,6 +30,7 @@ $groupFilterPanelWidth: 56px; // only applies in this file, used for calculation
 }
 
 .mx_GroupFilterPanel {
+    z-index: 1;
     background-color: $groupFilterPanel-bg-color;
     flex: 1;
     cursor: pointer;

res/css/structures/_LeftPanel.scss

@@ -27,28 +27,8 @@ $roomListCollapsedWidth: 68px;
     display: flex;
     max-width: 50%;
 
-    .mx_LeftPanel_background {
-
-        &::before {
-            content: " ";
-            position: absolute;
-            left: 0;
-            top: 0;
-            height: 100vh;
-            width: 100%;
-            background-color: var(--lp-background-overlay);
-        }
-
-        position: absolute;
-        left: 0;
-        top: 0;
-        width: 100%;
-        height: 100%;
-        background-color: $roomlist-bg-color;
-        opacity: 0.5;
-    }
-
     .mx_LeftPanel_wrapper--user {
+        background-color: $roomlist-bg-color;
         display: flex;
         overflow: hidden;
         position: relative;

res/css/structures/_SpacePanel.scss

@@ -22,18 +22,14 @@ $activeBorderTransparentGap: 1px;
 $activeBackgroundColor: $roomtile-selected-bg-color;
 $activeBorderColor: $secondary-fg-color;
 
-.mx_MatrixChat--with-avatar {
-    .mx_SpacePanel {
-        background-color: transparent;
-    }
-}
-
 .mx_SpacePanel {
     background-color: $groupFilterPanel-bg-color;
     flex: 0 0 auto;
     padding: 0;
     margin: 0;
     position: relative;
+    // Fix for the blurred avatar-background
+    z-index: 1;
 
     // Create another flexbox so the Panel fills the container
     display: flex;

res/themes/dark/css/_dark.scss

@@ -240,8 +240,7 @@ $appearance-tab-border-color: $room-highlight-color;
 
 // blur amounts for left left panel (only for element theme)
 :root {
-    --lp-background-blur: 90px;
+    --lp-background-blur: 45px;
-    --lp-background-overlay: rgba(255, 255, 255, 0.055);
 }
 
 $composer-shadow-color: rgba(0, 0, 0, 0.28);

res/themes/light/css/_light.scss

@@ -363,8 +363,7 @@ $appearance-tab-border-color: $input-darker-bg-color;
 
 // blur amounts for left left panel (only for element theme)
 :root {
-    --lp-background-blur: 60px;
+    --lp-background-blur: 30px;
-    --lp-background-overlay: rgba(0, 0, 0, 0.055);
 }
 $composer-shadow-color: rgba(0, 0, 0, 0.04);
 

src/components/structures/BackdropPanel.tsx

@@ -14,74 +14,31 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import React from "react";
+import React, { CSSProperties } from "react";
-import "context-filter-polyfill";
 
 interface IProps {
-    backgroundImage?: CanvasImageSource;
+    backgroundImage?: string;
+    blurMultiplier?: number;
 }
 
-interface IState {
+export const BackdropPanel: React.FC<IProps> = ({ backgroundImage, blurMultiplier }) => {
-    // Left Panel image
+    if (!backgroundImage) return null;
-    lpImage?: string;
-}
 
-export default class BackdropPanel extends React.PureComponent<IProps, IState> {
+    const styles: CSSProperties = {};
-    private style = getComputedStyle(document.documentElement);
+    if (blurMultiplier) {
-
+        const rootStyle = getComputedStyle(document.documentElement);
-    public state: IState = {};
+        const blurValue = rootStyle.getPropertyValue('--lp-background-blur');
-
+        const pixelsValue = blurValue.replace('px', '');
-    public componentDidMount() {
+        const parsed = parseInt(pixelsValue, 10);
-        this.onResize();
+        if (!isNaN(parsed)) {
-    }
+            styles.filter = `blur(${parsed * blurMultiplier}px)`;
-
-    public componentDidUpdate(prevProps: IProps) {
-        if (prevProps.backgroundImage !== this.props.backgroundImage) {
-            this.onResize();
         }
     }
-
+    return <div className="mx_BackdropPanel">
-    private onResize = () => {
+        <img
-        if (this.props.backgroundImage) {
+            style={styles}
-            this.refreshBackdropImage();
+            className="mx_BackdropPanel--image"
-        }
+            src={backgroundImage} />
-    };
+    </div>;
-
+};
-    private refreshBackdropImage = (): void => {
+export default BackdropPanel;
-        const leftPanelCanvas = document.createElement('canvas');
-        const leftPanelContext = leftPanelCanvas.getContext("2d");
-        const { backgroundImage } = this.props;
-
-        const imageWidth = (backgroundImage as ImageBitmap).width;
-        const imageHeight = (backgroundImage as ImageBitmap).height;
-
-        leftPanelCanvas.width = window.screen.width * 0.5;
-        leftPanelCanvas.height = window.screen.height;
-
-        const roomListBlur = this.style.getPropertyValue('--lp-background-blur');
-
-        leftPanelContext.filter = `blur(${roomListBlur})`;
-        leftPanelContext.drawImage(
-            backgroundImage,
-            0, 0,
-            imageWidth, imageHeight,
-            0,
-            0,
-            window.screen.width * 0.5,
-            window.screen.height,
-        );
-        this.setState({
-            lpImage: leftPanelCanvas.toDataURL('image/jpeg', 1),
-
-        });
-    };
-
-    public render() {
-        if (!this.props.backgroundImage) return null;
-        return <div className="mx_BackdropPanel">
-            { this.state?.lpImage !== 'data:,' && <img
-                className="mx_BackdropPanel--canvas"
-                src={this.state.lpImage} /> }
-        </div>;
-    }
-}

src/components/structures/LoggedInView.tsx

@@ -133,7 +133,7 @@ interface IState {
     usageLimitEventTs?: number;
     useCompactLayout: boolean;
     activeCalls: Array<MatrixCall>;
-    backgroundImage?: CanvasImageSource;
+    backgroundImage?: string;
 }
 
 /**
@@ -219,7 +219,7 @@ class LoggedInView extends React.Component<IProps, IState> {
 
     private refreshBackgroundImage = async (): Promise<void> => {
         this.setState({
-            backgroundImage: await OwnProfileStore.instance.getAvatarBitmap(),
+            backgroundImage: OwnProfileStore.instance.getHttpAvatarUrl(),
         });
     };
 
@@ -648,20 +648,30 @@ class LoggedInView extends React.Component<IProps, IState> {
                     <ToastContainer />
                     <div className={bodyClasses}>
                         <div className='mx_LeftPanel_wrapper'>
-                            <BackdropPanel
-                                backgroundImage={this.state.backgroundImage}
-                            />
                             { SettingsStore.getValue('TagPanel.enableTagPanel') &&
                                 (<div className="mx_GroupFilterPanelContainer">
+                                    <BackdropPanel
+                                        blurMultiplier={0.5}
+                                        backgroundImage={this.state.backgroundImage}
+                                    />
                                     <GroupFilterPanel />
                                     { SettingsStore.getValue("feature_custom_tags") ? <CustomRoomTagPanel /> : null }
                                 </div>)
                             }
-                            { SpaceStore.spacesEnabled ? <SpacePanel /> : null }
+                            { SpaceStore.spacesEnabled ? <>
+                                <BackdropPanel
+                                    blurMultiplier={0.5}
+                                    backgroundImage={this.state.backgroundImage}
+                                />
+                                <SpacePanel />
+                            </> : null }
+                            <BackdropPanel
+                                backgroundImage={this.state.backgroundImage}
+                            />
                             <div
                                 ref={this._resizeContainer}
-                                className="mx_LeftPanel_wrapper--user">
+                                className="mx_LeftPanel_wrapper--user"
-                                <div className="mx_LeftPanel_background" />
+                            >
                                 <LeftPanel
                                     isMinimized={this.props.collapseLhs || false}
                                     resizeNotifier={this.props.resizeNotifier}

src/stores/OwnProfileStore.ts

@@ -19,12 +19,10 @@ import { AsyncStoreWithClient } from "./AsyncStoreWithClient";
 import defaultDispatcher from "../dispatcher/dispatcher";
 import { MatrixEvent } from "matrix-js-sdk/src/models/event";
 import { User } from "matrix-js-sdk/src/models/user";
-import { memoize, throttle } from "lodash";
+import { throttle } from "lodash";
 import { MatrixClientPeg } from "../MatrixClientPeg";
 import { _t } from "../languageHandler";
 import { mediaFromMxc } from "../customisations/Media";
-import SettingsStore from "../settings/SettingsStore";
-import { getDrawable } from "../utils/drawable";
 
 interface IState {
     displayName?: string;
@@ -139,22 +137,6 @@ export class OwnProfileStore extends AsyncStoreWithClient<IState> {
         await this.updateState({ displayName: profileInfo.displayname, avatarUrl: profileInfo.avatar_url });
     };
 
-    public async getAvatarBitmap(avatarSize = 32): Promise<CanvasImageSource> {
-        let avatarUrl = this.getHttpAvatarUrl(avatarSize);
-        const settingBgMxc = SettingsStore.getValue("RoomList.backgroundImage");
-        if (settingBgMxc) {
-            avatarUrl = mediaFromMxc(settingBgMxc).getSquareThumbnailHttp(avatarSize);
-        }
-
-        if (avatarUrl) {
-            return await this.buildBitmap(avatarUrl);
-        } else {
-            return null;
-        }
-    }
-
-    private buildBitmap = memoize(getDrawable);
-
     private onStateEvents = throttle(async (ev: MatrixEvent) => {
         const myUserId = MatrixClientPeg.get().getUserId();
         if (ev.getType() === 'm.room.member' && ev.getSender() === myUserId && ev.getStateKey() === myUserId) {

yarn.lock

@@ -2917,11 +2917,6 @@ content-type@^1.0.4:
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
   integrity sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==
 
-context-filter-polyfill@^0.2.4:
-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/context-filter-polyfill/-/context-filter-polyfill-0.2.4.tgz#ecf88d3197e7c3a47e9a7ae2d5167b703945a5d4"
-  integrity sha512-LDZ3WiTzo6kIeJM7j8kPSgZf+gbD1cV1GaLyYO8RWvAg25cO3zUo3d2KizO0w9hAezNwz7tTbuWKpPdvLWzKqQ==
-
 convert-source-map@^1.1.0, convert-source-map@^1.4.0, convert-source-map@^1.6.0, convert-source-map@^1.7.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.8.0.tgz#f3373c32d21b4d780dd8004514684fb791ca4369"