Fixed log

Author: lupyuen

README.md

@@ -714,10 +714,21 @@ https://github.com/lupyuen/pinephone-lvgl-zig/blob/f81cc3148dd487abc7660b9e634d4
 
 https://github.com/lupyuen/pinephone-lvgl-zig/blob/f81cc3148dd487abc7660b9e634d40735c42ccf8/lvglwasm.zig#L35-L39
 
-# Render LVGL App in Web Browser
+TODO
+
+```text
+custom_logger: [Warn]	(0.001, +1)
+lv_disp_get_scr_act:
+no display registered to get its active screen
+(in lv_disp.c line #54)
+```
+
+# Initialise LVGL Display
 
 TODO: Init LVGL
 
+# Render LVGL App in Web Browser
+
 TODO: Render LVGL Display
 
 TODO: Use Zig to connect the JavaScript UI (canvas rendering + input events) to LVGL WebAssembly [(Like this)](https://dev.to/sleibrock/webassembly-with-zig-pt-ii-ei7)

lvglwasm.wasm

@@ -143,13 +143,12 @@ var elapsed_ms: u32 = 0;
 
 /// TODO: Print a Stack Trace on Assertion Failure
 export fn lv_assert_handler() void {
-    print(3000);
+    wasmlog.Console.log("lv_assert_handler: assertion failed", .{});
 }
 
-/// TODO: Custom Logger for LVGL
+/// Custom Logger for LVGL that writes to JavaScript Console
 export fn custom_logger(buf: [*c]const u8) void {
-    _ = buf;
-    print(4000);
+    wasmlog.Console.log("custom_logger: {s}", .{buf});
 }
 
 ///////////////////////////////////////////////////////////////////////////////