Support discord uri scheme

closes: #769

package.json

@@ -72,6 +72,12 @@
             "package.json",
             "LICENSE"
         ],
+        "protocols": {
+            "name": "Discord",
+            "schemes": [
+                "discord"
+            ]
+        },
         "beforePack": "scripts/build/sandboxFix.js",
         "linux": {
             "icon": "build/icon.icns",
@@ -112,7 +118,8 @@
                 "GenericName": "Internet Messenger",
                 "Type": "Application",
                 "Categories": "Network;InstantMessaging;Chat;",
-                "Keywords": "discord;vencord;electron;chat;"
+                "Keywords": "discord;vencord;electron;chat;",
+                "MimeType": "x-scheme-handler/discord"
             }
         },
         "mac": {

src/main/index.ts

@@ -27,6 +27,8 @@ if (IS_DEV) {
 process.env.VENCORD_USER_DATA_DIR = DATA_DIR;
 
 function init() {
+    app.setAsDefaultProtocolClient("discord");
+
     const { disableSmoothScroll, hardwareAcceleration } = Settings.store;
 
     const enabledFeatures = app.commandLine.getSwitchValue("enable-features").split(",");

src/main/mainWindow.ts

@@ -455,12 +455,20 @@ function createMainWindow() {
 
     win.webContents.setUserAgent(BrowserUserAgent);
 
-    const subdomain =
-        Settings.store.discordBranch === "canary" || Settings.store.discordBranch === "ptb"
-            ? `${Settings.store.discordBranch}.`
-            : "";
+    const branch = Settings.store.discordBranch;
+    const subdomain = branch === "canary" || branch === "ptb" ? `${branch}.` : "";
+    const uri = process.argv.find(arg => arg.startsWith("discord://"));
 
-    win.loadURL(`https://${subdomain}discord.com/app`);
+    const loadUrl = (url: string | undefined) => {
+        win.loadURL(`https://${subdomain}discord.com${url?.substring("discord://".length) || "/app"}`);
+    };
+
+    let uriFiredDarwin = false;
+    app.on("open-url", (_, url) => {
+        uriFiredDarwin = true;
+        loadUrl(url);
+    });
+    uriFiredDarwin || loadUrl(uri);
 
     return win;
 }