Switch to hidden titleBar on macOS to integrate the app better (#1101)

src/electron-main.ts

@@ -40,6 +40,7 @@ import * as updater from "./updater";
 import { getProfileFromDeeplink, protocolInit } from "./protocol";
 import { _t, AppLocalization } from "./language-helper";
 import { setDisplayMediaCallback } from "./displayMediaCallback";
+import { setupMacosTitleBar } from "./macos-titlebar";
 
 const argv = minimist(process.argv, {
     alias: { help: "h" },
@@ -454,6 +455,9 @@ app.on("ready", async () => {
         // https://www.electronjs.org/docs/faq#the-font-looks-blurry-what-is-this-and-what-can-i-do
         backgroundColor: "#fff",
 
+        titleBarStyle: process.platform === "darwin" ? "hidden" : "default",
+        trafficLightPosition: { x: 9, y: 8 },
+
         icon: global.trayConfig.icon_path,
         show: false,
         autoHideMenuBar: global.store.get("autoHideMenuBar", true),
@@ -472,6 +476,10 @@ app.on("ready", async () => {
     });
     global.mainWindow.loadURL("vector://vector/webapp/");
 
+    if (process.platform === "darwin") {
+        setupMacosTitleBar(global.mainWindow);
+    }
+
     // Handle spellchecker
     // For some reason spellCheckerEnabled isn't persisted, so we have to use the store here
     global.mainWindow.webContents.session.setSpellCheckerEnabled(global.store.get("spellCheckerEnabled", true));

src/macos-titlebar.ts

@@ -0,0 +1,115 @@
+/*
+Copyright 2023 New Vector Ltd
+
+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 { BrowserWindow } from "electron";
+
+export function setupMacosTitleBar(window: BrowserWindow): void {
+    if (process.platform !== "darwin") return;
+
+    let userMenuCssKey: string | undefined;
+
+    async function makeSpaceForTrafficLight(): Promise<void> {
+        userMenuCssKey = await window.webContents.insertCSS(`
+            /* Create margin of space for the traffic light buttons */
+            .mx_UserMenu {
+                margin-top: 32px !important;
+            }
+            /* Maintain alignment of the toggle space panel button */
+            .mx_SpacePanel_toggleCollapse {
+                /* 19px original top value, 32px margin-top above, 12px original margin-top value */
+                top: calc(19px + 32px - 12px) !important;
+            }
+        `);
+    }
+
+    window.on("enter-full-screen", () => {
+        if (userMenuCssKey !== undefined) {
+            window.webContents.removeInsertedCSS(userMenuCssKey);
+        }
+    });
+    window.on("leave-full-screen", () => {
+        makeSpaceForTrafficLight();
+    });
+
+    window.webContents.on("did-finish-load", () => {
+        if (!window.isFullScreen()) {
+            makeSpaceForTrafficLight();
+        }
+        window.webContents.insertCSS(`
+            /* Mark the splash screen as a drag handle */
+            .mx_MatrixChat_splash {
+                -webkit-app-region: drag;
+            }
+            /* Exclude the splash buttons from being drag handles */
+            .mx_MatrixChat_splashButtons {
+                -webkit-app-region: no-drag;
+            }
+            
+            /* Mark the background as a drag handle */
+            .mx_AuthPage {
+                -webkit-app-region: drag;
+            }
+            /* Exclude the main content elements from being drag handles */
+            .mx_AuthPage .mx_AuthPage_modalBlur,
+            .mx_AuthPage .mx_AuthFooter > * {
+                -webkit-app-region: no-drag;
+            }
+            
+            /* Mark the header as a drag handle */
+            .mx_LeftPanel .mx_LeftPanel_filterContainer {
+                -webkit-app-region: drag;
+            }
+            /* Exclude header interactive elements from being drag handles */
+            .mx_LeftPanel .mx_LeftPanel_filterContainer .mx_AccessibleButton {
+                -webkit-app-region: no-drag;
+            }
+        
+            /* Mark the home page background as a drag handle */
+            .mx_HomePage {
+                -webkit-app-region: drag;
+            }
+            /* Exclude interactive elements from being drag handles */
+            .mx_HomePage .mx_HomePage_body,
+            .mx_HomePage .mx_HomePage_default_wrapper > * {
+                -webkit-app-region: no-drag;
+            }
+            
+            /* Mark the header as a drag handle */
+            .mx_RoomHeader {
+                -webkit-app-region: drag;
+                -webkit-user-select: none;
+            }
+            /* Exclude header interactive elements from being drag handles */
+            .mx_RoomHeader .mx_RoomHeader_avatar,
+            .mx_RoomHeader .mx_E2EIcon,
+            .mx_RoomHeader .mx_AccessibleButton {
+                -webkit-app-region: no-drag;
+            }
+            
+            /* Mark the background as a drag handle */
+            .mx_RoomView_wrapper {
+                -webkit-app-region: drag;
+            }
+            /* Exclude content elements from being drag handles */
+            .mx_SpaceRoomView_landing > *,
+            .mx_RoomPreviewBar,
+            .mx_RoomView_body,
+            .mx_RoomPreviewCard {
+                -webkit-app-region: no-drag;
+            }
+        `);
+    });
+}