5 files changed, 33 insertions, 11 deletions
diff --git a/platform/javascript/export/export.cpp b/platform/javascript/export/export.cpp
index 825c1b6638..ea236f62f7 100644
--- a/platform/javascript/export/export.cpp
+++ b/platform/javascript/export/export.cpp
@@ -30,6 +30,7 @@
 
 #include "export.h"
 
+#include "editor/editor_settings.h"
 #include "export_plugin.h"
 
 void register_javascript_exporter() {
diff --git a/platform/javascript/export/export.h b/platform/javascript/export/export.h
index 41cc66cfb8..29c335ed0e 100644
--- a/platform/javascript/export/export.h
+++ b/platform/javascript/export/export.h
@@ -33,4 +33,4 @@
 
 void register_javascript_exporter();
 
-#endif
+#endif // JAVASCRIPT_EXPORT_H
diff --git a/platform/javascript/export/export_plugin.cpp b/platform/javascript/export/export_plugin.cpp
index e2ae45627e..0bdee11018 100644
--- a/platform/javascript/export/export_plugin.cpp
+++ b/platform/javascript/export/export_plugin.cpp
@@ -31,6 +31,7 @@
 #include "export_plugin.h"
 
 #include "core/config/project_settings.h"
+#include "editor/editor_settings.h"
 
 Error EditorExportPlatformJavaScript::_extract_template(const String &p_template, const String &p_dir, const String &p_name, bool pwa) {
 	Ref<FileAccess> io_fa;
@@ -302,7 +303,7 @@ Error EditorExportPlatformJavaScript::_build_pwa(const Ref<EditorExportPreset> &
 	return OK;
 }
 
-void EditorExportPlatformJavaScript::get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) {
+void EditorExportPlatformJavaScript::get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) const {
 	if (p_preset->get("vram_texture_compression/for_desktop")) {
 		r_features->push_back("s3tc");
 	}
@@ -361,7 +362,7 @@ Ref<Texture2D> EditorExportPlatformJavaScript::get_logo() const {
 	return logo;
 }
 
-bool EditorExportPlatformJavaScript::can_export(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const {
+bool EditorExportPlatformJavaScript::has_valid_export_configuration(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const {
 #ifndef DEV_ENABLED
 	// We don't provide export templates for the HTML5 platform currently as there
 	// is no suitable renderer to use with them. So we forbid exporting and tell
@@ -395,7 +396,27 @@ bool EditorExportPlatformJavaScript::can_export(const Ref<EditorExportPreset> &p
 	valid = dvalid || rvalid;
 	r_missing_templates = !valid;
 
-	// Validate the rest of the configuration.
+	if (!err.is_empty()) {
+		r_error = err;
+	}
+
+	return valid;
+}
+
+bool EditorExportPlatformJavaScript::has_valid_project_configuration(const Ref<EditorExportPreset> &p_preset, String &r_error) const {
+#ifndef DEV_ENABLED
+	// We don't provide export templates for the HTML5 platform currently as there
+	// is no suitable renderer to use with them. So we forbid exporting and tell
+	// users why. This is skipped in DEV_ENABLED so that contributors can still test
+	// the pipeline once we start having WebGL or WebGPU support.
+	r_error = "The HTML5 platform is currently not supported in Godot 4.0, as there is no suitable renderer for it.\n";
+	return false;
+#endif
+
+	String err;
+	bool valid = true;
+
+	// Validate the project configuration.
 
 	if (p_preset->get("vram_texture_compression/for_mobile")) {
 		String etc_error = test_etc2();
diff --git a/platform/javascript/export/export_plugin.h b/platform/javascript/export/export_plugin.h
index 1aaec5454d..16bab02d54 100644
--- a/platform/javascript/export/export_plugin.h
+++ b/platform/javascript/export/export_plugin.h
@@ -36,8 +36,8 @@
 #include "core/io/stream_peer_ssl.h"
 #include "core/io/tcp_server.h"
 #include "core/io/zip_io.h"
-#include "editor/editor_export.h"
 #include "editor/editor_node.h"
+#include "editor/export/editor_export_platform.h"
 #include "main/splash.gen.h"
 #include "platform/javascript/logo.gen.h"
 #include "platform/javascript/run_icon.gen.h"
@@ -110,7 +110,7 @@ class EditorExportPlatformJavaScript : public EditorExportPlatform {
 	static void _server_thread_poll(void *data);
 
 public:
-	virtual void get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) override;
+	virtual void get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) const override;
 
 	virtual void get_export_options(List<ExportOption> *r_options) override;
 
@@ -118,7 +118,8 @@ public:
 	virtual String get_os_name() const override;
 	virtual Ref<Texture2D> get_logo() const override;
 
-	virtual bool can_export(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const override;
+	virtual bool has_valid_export_configuration(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const override;
+	virtual bool has_valid_project_configuration(const Ref<EditorExportPreset> &p_preset, String &r_error) const override;
 	virtual List<String> get_binary_extensions(const Ref<EditorExportPreset> &p_preset) const override;
 	virtual Error export_project(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path, int p_flags = 0) override;
 
@@ -130,7 +131,7 @@ public:
 	virtual Error run(const Ref<EditorExportPreset> &p_preset, int p_option, int p_debug_flags) override;
 	virtual Ref<Texture2D> get_run_icon() const override;
 
-	virtual void get_platform_features(List<String> *r_features) override {
+	virtual void get_platform_features(List<String> *r_features) const override {
 		r_features->push_back("web");
 		r_features->push_back(get_os_name().to_lower());
 	}
@@ -144,4 +145,4 @@ public:
 	~EditorExportPlatformJavaScript();
 };
 
-#endif
+#endif // JAVASCRIPT_EXPORT_PLUGIN_H
diff --git a/platform/javascript/export/export_server.h b/platform/javascript/export/export_server.h
index a831b76076..ddbe3cca30 100644
--- a/platform/javascript/export/export_server.h
+++ b/platform/javascript/export/export_server.h
@@ -35,7 +35,6 @@
 #include "core/io/stream_peer_ssl.h"
 #include "core/io/tcp_server.h"
 #include "core/io/zip_io.h"
-#include "editor/editor_export.h"
 #include "editor/editor_paths.h"
 
 class EditorHTTPServer : public RefCounted {
@@ -248,4 +247,4 @@ public:
 	}
 };
 
-#endif
+#endif // JAVASCRIPT_EXPORT_SERVER_H