From fb348ee38d22f046f9dda476310dfca55925c3c6 Mon Sep 17 00:00:00 2001
From: Lleyton Gray <lleyton@fyralabs.com>
Date: Sun, 4 Feb 2024 02:08:56 -0800
Subject: [PATCH] feat: begin work on IPC

---
 README.md               |  1 +
 src/MainWindow.vala     | 19 ++++++++++++++++---
 src/MessageHandler.vala | 40 ++++++++++++++++++++++++++++++++++++++++
 src/meson.build         |  2 ++
 4 files changed, 59 insertions(+), 3 deletions(-)
 create mode 100644 src/MessageHandler.vala

diff --git a/README.md b/README.md
index 5fa054a..0b4a03f 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ meson
 vala
 blueprint-compiler
 webkitgtk-6.0
+json-glib-1.0
 ```
 
 ## 🏗️ Building
diff --git a/src/MainWindow.vala b/src/MainWindow.vala
index e82350f..800ba7d 100644
--- a/src/MainWindow.vala
+++ b/src/MainWindow.vala
@@ -9,7 +9,16 @@ public class SkiffDesktop.MainWindow : He.ApplicationWindow {
     private unowned Gtk.Box main_box;
     private WebKit.WebView webview = new WebKit.WebView ();
     private WebKit.UserScript script = new WebKit.UserScript (
-        "window.IsSkiffWindowsDesktop = true;",
+        """
+        window.IsSkiffWindowsDesktop = true
+        window.chrome = {
+            webview: {
+                postMessage: (v) => window.webkit.messageHandlers.skiffDesktop.postMessage(v),
+                addEventListener: (_, listener) => window._skiffListener = listener,
+                removeEventListener: (_, listener) => delete window._skiffListener,
+            }
+        }
+        """,
         WebKit.UserContentInjectedFrames.TOP_FRAME,
         WebKit.UserScriptInjectionTime.START,
         null,
@@ -98,8 +107,12 @@ public class SkiffDesktop.MainWindow : He.ApplicationWindow {
     }
 
     construct {
-        //  var content_manager = webview.get_user_content_manager ();
-        //  content_manager.add_script (script);
+        var message_handler = new MessageHandler ();
+
+        var content_manager = webview.get_user_content_manager ();
+        content_manager.add_script (script);
+        content_manager.script_message_received.connect (message_handler.on_script_message);
+        content_manager.register_script_message_handler ("skiffDesktop", null);
 
         var network_session = webview.get_network_session ();
         var website_data_manager = network_session.get_website_data_manager ();
diff --git a/src/MessageHandler.vala b/src/MessageHandler.vala
new file mode 100644
index 0000000..a357c80
--- /dev/null
+++ b/src/MessageHandler.vala
@@ -0,0 +1,40 @@
+public class SkiffDesktop.MessageHandler {
+    private class NotificationItem : Object {
+        public string title { get; set; }
+        public string body { get; set; }
+        public string threadID { get; set; }
+        public string emailID { get; set; }
+    }
+
+    private class NotificationData : Object {
+        public NotificationItem[] notificationData { get; set; }
+    }
+
+    private class UnreadData : Object {
+        public int numUnread { get; set; }
+    }
+
+    public void on_script_message (JSC.Value val) {
+        var parser = new Json.Parser ();
+        parser.load_from_data (val.to_string ());
+
+        var root = parser.get_root ();
+        var message_type = root.get_object ().get_string_member ("type");
+
+        switch (message_type) {
+            case "unreadMailCount":
+                var unread_data = Json.gobject_deserialize (typeof (UnreadData), root) as UnreadData;
+                assert (unread_data != null);
+                print ("unread count: %d\n", unread_data.numUnread);
+                break;
+            case "newMessageNotifications":
+                var notification_data = Json.gobject_deserialize (typeof (NotificationData), root) as NotificationData;
+                assert (notification_data != null);
+                print ("notifications: %d\n", notification_data.notificationData.length);
+                break;
+            default:
+                print ("Received unknown message %s\n", val.to_string ());
+                break;
+        }
+    }
+}
diff --git a/src/meson.build b/src/meson.build
index 2b4d972..5c54de1 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -36,6 +36,7 @@ sources = [
     'Config.vapi',
     'Application.vala',
     'MainWindow.vala',
+    'MessageHandler.vala',
 ]
 
 dependencies = [
@@ -47,6 +48,7 @@ dependencies = [
     dependency('libhelium-1'),
     dependency('gmodule-2.0'),
     dependency('webkitgtk-6.0'),
+    dependency('json-glib-1.0'),
 ]
 
 executable(