1 files changed, 130 insertions(+), 0 deletions(-)

A src/NeovimProcess.ts

@@ 0,0 1,130 @@
+// This is an incomplete implementation of
+// https://nodejs.org/api/events.html
+class NodeEventEmitter {
+    private all_listeners: {[key:string]: (() => any)[]} = {};
+
+    constructor () { }
+
+    addListener (evname: string, listener: () => any) {
+        this.on(evname, listener);
+    }
+
+    emit (evname: string, ...args: any[]) {
+        if (!this.all_listeners[evname])
+            return;
+        this.all_listeners[evname].map(l => l.apply(this, args));
+    }
+
+    eventNames () {
+        return Object.keys(this.all_listeners);
+    }
+
+    listeners (evname: string) {
+        if (!this.all_listeners[evname])
+            return;
+        return this.all_listeners[evname].slice();
+    }
+
+    on (evname: string, listener: () => any) {
+        if (!this.all_listeners[evname]) {
+            this.all_listeners[evname] = [];
+        }
+        this.all_listeners[evname].push(listener);
+    }
+
+    // Creates a lambda that will try to remove itself from the `listeners`
+    // array when called
+    selfRemovingListener (evname: string, listener: () => any) {
+        let fn = (...args: any[]) => {
+            this.removeListener(evname, fn);
+            listener.apply(this, args);
+        }
+        return fn;
+    }
+
+    once (evname: string, listener: () => any) {
+        this.on(evname, this.selfRemovingListener(evname, listener));
+    }
+
+    prependListener (evname: string, listener: () => any) {
+        if (!this.all_listeners[evname])
+            this.all_listeners[evname] = [];
+        this.all_listeners[evname].unshift(listener);
+    }
+
+    prependOnceListener (evname: string, listener: () => any) {
+        this.prependListener(evname, this.selfRemovingListener(evname, listener));
+    }
+
+    removeAllListeners (evname: string) {
+        this.all_listeners[evname] = [];
+    }
+
+    removeListener (evname: string, listener: () => any) {
+        if (!this.all_listeners[evname])
+            return;
+        let i = this.all_listeners[evname].indexOf(listener);
+        if (i >= 0)
+            this.all_listeners[evname] = this.all_listeners[evname].splice(i, 1);
+    }
+}
+
+class NeovimStdin extends NodeEventEmitter {
+    port: Port;
+
+    constructor(port: Port) {
+        super();
+        this.port = port;
+    }
+
+    write(str: string) {
+        this.port.postMessage(str);
+    }
+}
+
+class NeovimStdout extends NodeEventEmitter {
+    port: Port;
+
+    constructor(port: Port) {
+        super();
+        this.port = port;
+        this.port.onMessage.addListener(this.onMessage.bind(this))
+    }
+
+    private onMessage(msg: any) {
+        console.log(msg);
+    }
+
+    read() {
+        console.log("Called read fn");
+    }
+}
+
+class NeovimProcess {
+    stdin : ProxyHandler<NeovimStdin>;
+    stdout: ProxyHandler<NeovimStdout>;
+
+    constructor() {
+        let port = browser.runtime.connectNative("firenvim");
+        let proxy = {
+            get: (obj: any, prop: any): any => {
+                if (obj[prop] !== undefined)
+                    return obj[prop];
+                console.log(obj);
+                throw new Error(`Property "${prop}" doesn't exist in "${obj}"`);
+            },
+            set: (obj: any, prop: any, value: any): boolean => {
+                let retval = obj[prop] === undefined
+                if (retval)
+                    console.warn(`Setting new property "${prop}" to `, value, " in ", obj);
+                obj[prop] = value;
+                return retval;
+            },
+        };
+        this.stdin = new Proxy(new NeovimStdin(port), proxy);
+        this.stdout = new Proxy(new NeovimStdout(port), proxy);
+    }
+
+}
+
+exports.NeovimProcess = NeovimProcess;