[HTML5] Implement JavaScript PWA update callbacks.

Allows detecting when a new version of the progressive web app service
worker is waiting (i.e. an update is pending), along a function to force
the update and reload all clients.

1 files changed, 8 insertions, 0 deletions

diff --git a/platform/javascript/javascript_singleton.cpp b/platform/javascript/javascript_singleton.cpp
index b10e8007c0..77858bff01 100644
--- a/platform/javascript/javascript_singleton.cpp
+++ b/platform/javascript/javascript_singleton.cpp
@@ -30,6 +30,7 @@
 
 #include "api/javascript_singleton.h"
 #include "emscripten.h"
+#include "os_javascript.h"
 
 extern "C" {
 extern void godot_js_os_download_buffer(const uint8_t *p_buf, int p_buf_size, const char *p_name, const char *p_mime);
@@ -355,3 +356,10 @@ Variant JavaScript::eval(const String &p_code, bool p_use_global_exec_context) {
 void JavaScript::download_buffer(Vector<uint8_t> p_arr, const String &p_name, const String &p_mime) {
 	godot_js_os_download_buffer(p_arr.ptr(), p_arr.size(), p_name.utf8().get_data(), p_mime.utf8().get_data());
 }
+
+bool JavaScript::pwa_needs_update() const {
+	return OS_JavaScript::get_singleton()->pwa_needs_update();
+}
+Error JavaScript::pwa_update() {
+	return OS_JavaScript::get_singleton()->pwa_update();
+}