added Shortcuts extension

packages/app/src/extensions/index.js

@@ -7,4 +7,5 @@ export * as Notifications from "./notifications"
 
 export { default as SettingsController } from "./settings"
 export { default as API } from "./api"
-export { default as Debug } from "./debug"
+export { default as Debug } from "./debug"
+export { default as Shortcuts } from "./shortcuts"

packages/app/src/extensions/shortcuts/index.js

@@ -0,0 +1,76 @@
+export class ShortcutsController {
+    constructor() {
+        this.shortcuts = {}
+
+        document.addEventListener("keydown", (event) => {
+            const key = event.key.toLowerCase()
+
+            const shortcut = this.shortcuts[key]
+
+            if (shortcut) {
+                event.preventDefault()
+
+                if (typeof shortcut.ctrl === "boolean" && event.ctrlKey !== shortcut.ctrl) {
+                    return
+                }
+
+                if (typeof shortcut.shift === "boolean" && event.shiftKey !== shortcut.shift) {
+                    return
+                }
+
+                if (typeof shortcut.alt === "boolean" && event.altKey !== shortcut.alt) {
+                    return
+                }
+
+                if (typeof shortcut.meta === "boolean" && event.metaKey !== shortcut.meta) {
+                    return
+                }
+
+                if (typeof shortcut.fn === "function") {
+                    shortcut.fn()
+                }
+            }
+        })
+    }
+
+    register = (keybind = {}, fn) => {
+        if (typeof keybind === "string") {
+            keybind = {
+                key: keybind,
+            }
+        }
+
+
+        this.shortcuts[keybind.key] = {
+            ...keybind,
+            fn,
+        }
+    }
+
+    remove = (array) => {
+        if (typeof array === "string") {
+            array = [array]
+        }
+
+        array.forEach(key => {
+            delete this.shortcuts[key]
+        })
+    }
+}
+
+export const extension = {
+    key: "shortcuts",
+    expose: [
+        {
+            initialization: [
+                (app, main) => {
+                    app.ShortcutsController = new ShortcutsController()
+
+                    main.setToWindowContext("ShortcutsController", app.ShortcutsController)
+                }
+            ],
+        },
+    ]
+}
+
+export default extension