1 files changed, 78 insertions, 0 deletions
diff --git a/node/src/application.ts b/node/src/application.ts
new file mode 100644
index 0000000..bc0f47f
--- /dev/null
+++ b/node/src/application.ts
@@ -0,0 +1,78 @@
+import gi from "node-gtk"
+const Astal = gi.require("Astal", "0.1")
+
+type RequestHandler = {
+    (request: string, res: (response: string) => void): void
+}
+
+type Config = Partial<{
+    instanceName: string
+    gtkTheme: string
+    iconTheme: string
+    cursorTheme: string
+    css: string
+    requestHandler: RequestHandler
+    hold: boolean
+}>
+
+class AstalJS extends Astal.Application {
+    static GTypeName = "AstalJS"
+    static { gi.registerClass(this) }
+
+    eval(body: string): Promise<any> {
+        return new Promise((res, rej) => {
+            try {
+                const fn = Function(`return (async function() {
+                    ${body.includes(";") ? body : `return ${body};`}
+                })`)
+                fn()()
+                    .then(res)
+                    .catch(rej)
+            } catch (error) {
+                rej(error)
+            }
+        })
+    }
+
+    requestHandler?: RequestHandler
+
+    vfunc_response(msg: string, conn: any): void {
+        if (typeof this.requestHandler === "function") {
+            this.requestHandler(msg, response => {
+                Astal.writeSock(conn, response, (_, res) =>
+                    Astal.writeSockFinish(res),
+                )
+            })
+        } else {
+            // @ts-expect-error missing type
+            super.vfunc_response(msg, conn)
+        }
+    }
+
+    start(
+        { requestHandler, css, ...cfg }: Omit<Config, "hold"> = {},
+        callback?: (args: string[]) => any,
+    ) {
+        Object.assign(this, cfg)
+
+        this.requestHandler = requestHandler
+        this.on("activate", () => {
+            callback?.(process.argv)
+        })
+
+        if (!this.acquireSocket()) {
+            console.error(`Astal instance "${this.instanceName}" already running`)
+            process.exit()
+        }
+
+        if (css)
+            this.applyCss(css, false)
+
+        // FIXME: promises never resolve
+        // https://github.com/romgrk/node-gtk/issues/121
+        // https://gitlab.gnome.org/GNOME/gjs/-/issues/468
+        App.run([])
+    }
+}
+
+export const App = new AstalJS