Started work on getting emscripten clipboard working with rich text

include/EmscriptenHelpers/emscripten_browser_clipboard.h

@@ -28,22 +28,22 @@ inline void copy(std::string const &content);
 
 namespace detail {
 
-EM_JS_INLINE(void, paste_js, (paste_handler callback, void *callback_data), {
+EM_JS_INLINE(void, paste_js, (paste_handler callback, const char* mimeType, void *callback_data), {
   /// Register the given callback to handle paste events. Callback data pointer is passed through to the callback.
   /// Paste handler callback signature is:
   ///   void my_handler(std::string const &paste_data, void *callback_data = nullptr);
   document.addEventListener('paste', (event) => {
-    Module["ccall"]('emscripten_browser_clipboard_detail_paste_return', 'number', ['string', 'number', 'number'], [event.clipboardData.getData('text/plain'), callback, callback_data]);
+    Module["ccall"]('emscripten_browser_clipboard_detail_paste_return', 'number', ['string', 'number', 'number'], [event.clipboardData.getData(mimeType), callback, callback_data]);
   });
 });
 
-EM_JS_INLINE(void, copy_js, (copy_handler callback, void *callback_data), {
+EM_JS_INLINE(void, copy_js, (copy_handler callback, const char* mimeType, void *callback_data), {
   /// Register the given callback to handle copy events. Callback data pointer is passed through to the callback.
   /// Copy handler callback signature is:
   ///   char const *my_handler(void *callback_data = nullptr);
   document.addEventListener('copy', (event) => {
     const content_ptr = Module["ccall"]('emscripten_browser_clipboard_detail_copy_return', 'number', ['number', 'number'], [callback, callback_data]);
-    event.clipboardData.setData('text/plain', UTF8ToString(content_ptr));
+    event.clipboardData.setData(mimeType, UTF8ToString(content_ptr));
     event.preventDefault();
   });
 });
@@ -55,14 +55,14 @@ EM_JS_INLINE(void, copy_async_js, (char const *content_ptr), {
 
 } // namespace detail
 
-inline void paste(paste_handler callback, void *callback_data) {
+inline void paste(paste_handler callback, const char* mimeType, void *callback_data) {
   /// C++ wrapper for javascript paste call
-  detail::paste_js(callback, callback_data);
+  detail::paste_js(callback, mimeType, callback_data);
 }
 
-inline void copy(copy_handler callback, void *callback_data) {
+inline void copy(copy_handler callback, const char* mimeType, void *callback_data) {
   /// C++ wrapper for javascript copy call
-  detail::copy_js(callback, callback_data);
+  detail::copy_js(callback, mimeType, callback_data);
 }
 
 inline void copy(std::string const &content) {

src/InputManager.cpp

@@ -62,8 +62,14 @@ InputManager::InputManager() {
     emscripten_browser_clipboard::paste([](std::string&& pasteData, void* callbackData){
         InputManager* inMan = (InputManager*)callbackData;
         inMan->clipboardPasteEventHappened = true;
-        inMan->clipboardPasteEventData = pasteData;
-    }, this);
+        inMan->clipboardPasteEventData["text/plain"] = pasteData;
+    }, "text/plain", this);
+
+    emscripten_browser_clipboard::paste([](std::string&& pasteData, void* callbackData){
+        InputManager* inMan = (InputManager*)callbackData;
+        inMan->clipboardPasteEventHappened = true;
+        inMan->clipboardPasteEventData[inMan->get_infpnt_richtext_mimetype()] = pasteData;
+    }, get_infpnt_richtext_mimetype().c_str(), this);
 #endif
 
     keyAssignments = defaultKeyAssignments;
@@ -109,7 +115,10 @@ bool InputManager::get_clipboard_paste_happened() {
 
 std::string InputManager::get_clipboard_str() {
 #ifdef __EMSCRIPTEN__
-    return clipboardPasteEventData;
+    auto it = clipboardPasteEventData.find("text/plain");
+    if(it == clipboardPasteEventData.end())
+        return "";
+    return it->second;
 #else
     char* data = SDL_GetClipboardText();
     std::string toRet(data);
@@ -119,11 +128,18 @@ std::string InputManager::get_clipboard_str() {
 }
 
 std::string InputManager::get_clipboard_data_for_mimetype(const std::string& mimeType) {
+#ifdef __EMSCRIPTEN__
+    auto it = clipboardPasteEventData.find(mimeType);
+    if(it == clipboardPasteEventData.end())
+        return "";
+    return it->second;
+#else
     size_t datSize = 0;
     void* dat = SDL_GetClipboardData(mimeType.c_str(), &datSize);
     if(!dat)
         return "";
     return std::string(static_cast<char*>(dat), datSize);
+#endif
 }
 
 void InputManager::set_clipboard_str(std::string_view s) {

src/InputManager.hpp

@@ -207,7 +207,7 @@ struct InputManager {
 
 #ifdef __EMSCRIPTEN__
     bool clipboardPasteEventHappened = false;
-    std::string clipboardPasteEventData;
+    std::unordered_map<std::string, std::string> clipboardPasteEventData;
 #endif
 
     std::string key_assignment_to_str(const Vector2ui32& k);

src/main.cpp

@@ -393,6 +393,7 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char **argv) {
     udata_setCommonData((void *) icudt.data(), &uerr);
     if (U_FAILURE(uerr)) {
         char* errorName = const_cast<char*>(u_errorName(uerr));
+        std::cout << "Failed to load icudt77l.dat" << std::endl;
         std::cout << errorName << std::endl;
     }