first part of the fix for #91

src/greeter.c

@@ -58,6 +58,7 @@ static GtkWidget *window;
 static WebKitSettings *webkit_settings;
 static GdkDisplay *default_display;
 static GResource *greeter_resources;
+static WebKitUserContentManager *manager;
 
 /* Screensaver values */
 static int
@@ -207,7 +208,7 @@ load_script(char *script) {
 
 static void
 greeter_loaded_handler(void) {
-	load_script(GRESOURCE_PATH "/js/bundle.js");
+	//load_script(GRESOURCE_PATH "/js/bundle.js");
 }
 
 
@@ -287,6 +288,35 @@ rtrim_comments(gchar *str) {
 }
 
 
+static void
+javascript_bundle_injection_setup() {
+	WebKitUserScript *bundle;
+	GBytes *data;
+	guint8 *data_as_guint;
+	gchar *script;
+
+	data = g_resource_lookup_data(
+		greeter_resources,
+		GRESOURCE_PATH "/js/bundle.js",
+		G_RESOURCE_LOOKUP_FLAGS_NONE,
+		NULL
+	);
+
+	data_as_guint = g_byte_array_free(g_bytes_unref_to_array(data), FALSE);
+	script = g_strdup_printf("%s", data_as_guint);
+
+	bundle = webkit_user_script_new(
+		script,
+		WEBKIT_USER_CONTENT_INJECT_TOP_FRAME,
+		WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_START,
+		NULL, /* URL whitelist pattern */
+		NULL  /* URL blacklist pattern */
+	);
+
+	webkit_user_content_manager_add_script(WEBKIT_USER_CONTENT_MANAGER(manager), bundle);
+}
+
+
 int
 main(int argc, char **argv) {
 	GdkScreen *screen;
@@ -296,7 +326,6 @@ main(int argc, char **argv) {
 	gchar *theme;
 	GError *err = NULL;
 	GdkRGBA bg_color;
-	WebKitUserContentManager *manager;
 	WebKitWebContext *context;
 	GtkCssProvider *css_provider;
 	WebKitCookieManager *cookie_manager;
@@ -421,6 +450,8 @@ main(int argc, char **argv) {
 	g_signal_connect(manager, "script-message-received::GreeterBridge", G_CALLBACK(message_received_cb), NULL);
 	webkit_user_content_manager_register_script_message_handler(manager, "GreeterBridge");
 
+	javascript_bundle_injection_setup();
+
 	/* Create the web_view */
 	web_view = webkit_web_view_new_with_user_content_manager(manager);
 

src/gresource/js/Greeter.js

@@ -297,10 +297,33 @@ class Greeter {
 }
 
 
+const __lightdm = new Promise( (resolve, reject) => {
+	let waiting = 0;
+
+	const check_window_prop = () => {
+		if ( waiting > 15000 ) {
+			return reject( 'Timeout Reached!');
+		}
+
+		setTimeout( () => {
+			waiting += 1;
+
+			if ( '__LightDMGreeter' in window ) {
+				return resolve( window.__LightDMGreeter );
+			}
+
+			check_window_prop();
+		}, 1 );
+	};
+
+	check_window_prop();
+});
+
+
 /**
  * @memberOf window
  * @type {LightDM.Greeter}
  */
-window.lightdm = __LightDMGreeter;
+__lightdm.then( result => window.lightdm = result );
 
 

src/gresource/js/GreeterConfig.js

@@ -151,16 +151,42 @@ class GreeterConfig  {
 	}
 }
 
+const __greeter_config = new Promise( (resolve, reject) => {
+	let waiting = 0;
+
+	const check_window_prop = () => {
+		if ( waiting > 15000 ) {
+			return reject( 'Timeout Reached!');
+		}
+
+		setTimeout( () => {
+			waiting += 1;
+
+			if ( '__GreeterConfig' in window ) {
+				return resolve( (() => new GreeterConfig())() );
+			}
+
+			check_window_prop();
+		}, 1 );
+	};
+
+	check_window_prop();
+});
+
 
 /**
  * @memberOf window
  * @type {LightDM.GreeterConfig}
  */
-window.greeter_config = new GreeterConfig();
+__greeter_config.then( result => {
+	window.greeter_config = result;
+
+	/**
+	 * @deprecated
+	 * @type {LightDM.GreeterConfig}
+	 */
+	window.config = window.greeter_config;
+} );
+
 
 
-/**
- * @deprecated
- * @type {LightDM.GreeterConfig}
- */
-window.config = window.greeter_config;

src/gresource/js/ThemeHeartbeat.js

@@ -80,6 +80,3 @@ class ThemeHeartbeat  {
 		window.webkit.messageHandlers.GreeterBridge.postMessage('Heartbeat');
 	}
 }
-
-
-new ThemeHeartbeat();

src/gresource/js/ThemeUtils.js

@@ -197,14 +197,41 @@ class ThemeUtils {
 }
 
 
+const __theme_utils = new Promise( (resolve, reject) => {
+	let waiting = 0;
+
+	const check_window_prop = () => {
+		if ( waiting > 15000 ) {
+			return reject( 'Timeout Reached!');
+		}
+
+		setTimeout( () => {
+			waiting += 1;
+
+			if ( '__ThemeUtils' in window ) {
+				return resolve( (() => new ThemeUtils())() );
+			}
+
+			check_window_prop();
+		}, 1 );
+	};
+
+	check_window_prop();
+});
+
+
 /**
  * @memberOf window
  * @type {LightDM.ThemeUtils}
  */
-window.theme_utils = new ThemeUtils();
+__theme_utils.then( result => {
+	window.theme_utils = result;
 
-/**
+	new ThemeHeartbeat();
- * @deprecated
+
- * @type {LightDM.ThemeUtils}
+	/**
- */
+	 * @deprecated
-window.greeterutil = window.theme_utils;
+	 * @type {LightDM.ThemeUtils}
+	 */
+	window.greeterutil = window.theme_utils;
+} );