1 files changed, 12 insertions, 6 deletions
diff --git a/src/plugins/platforms/wasm/qwasmintegration.cpp b/src/plugins/platforms/wasm/qwasmintegration.cpp
index 1e9f68027c..69f58013e7 100644
--- a/src/plugins/platforms/wasm/qwasmintegration.cpp
+++ b/src/plugins/platforms/wasm/qwasmintegration.cpp
@@ -36,6 +36,7 @@
 #include "qwasmclipboard.h"
 #include "qwasmservices.h"
 #include "qwasmoffscreensurface.h"
+#include "qwasmstring.h"
 
 #include "qwasmwindow.h"
 #ifndef QT_NO_OPENGL
@@ -67,19 +68,19 @@ static void browserBeforeUnload(emscripten::val)
 
 static void addCanvasElement(emscripten::val canvas)
 {
-    QString canvasId = QString::fromStdString(canvas["id"].as<std::string>());
+    QString canvasId = QWasmString::toQString(canvas["id"]);
     QWasmIntegration::get()->addScreen(canvasId);
 }
 
 static void removeCanvasElement(emscripten::val canvas)
 {
-    QString canvasId = QString::fromStdString(canvas["id"].as<std::string>());
+    QString canvasId = QWasmString::toQString(canvas["id"]);
     QWasmIntegration::get()->removeScreen(canvasId);
 }
 
 static void resizeCanvasElement(emscripten::val canvas)
 {
-    QString canvasId = QString::fromStdString(canvas["id"].as<std::string>());
+    QString canvasId = QWasmString::toQString(canvas["id"]);
     QWasmIntegration::get()->resizeScreen(canvasId);
 }
 
@@ -115,11 +116,11 @@ QWasmIntegration::QWasmIntegration()
         int screenCount = qtCanvaseElements["length"].as<int>();
         for (int i = 0; i < screenCount; ++i) {
             emscripten::val canvas = qtCanvaseElements[i].as<emscripten::val>();
-            QString canvasId = QString::fromStdString(canvas["id"].as<std::string>());
+            QString canvasId = QWasmString::toQString(canvas["id"]);
             addScreen(canvasId);
         }
     } else if (!canvas.isUndefined()){
-        QString canvasId = QString::fromStdString(canvas["id"].as<std::string>());
+        QString canvasId = QWasmString::toQString(canvas["id"]);
         addScreen(canvasId);
     }
 
@@ -132,7 +133,7 @@ QWasmIntegration::QWasmIntegration()
         Q_UNUSED(userData);
 
         // This resize event is called when the HTML window is resized. Depending
-        // on the page layout the the canvas(es) might also have been resized, so we
+        // on the page layout the canvas(es) might also have been resized, so we
         // update the Qt screen sizes (and canvas render sizes).
         if (QWasmIntegration *integration = QWasmIntegration::get())
             integration->resizeAllScreens();
@@ -191,6 +192,11 @@ QPlatformBackingStore *QWasmIntegration::createPlatformBackingStore(QWindow *win
 #endif
 }
 
+void QWasmIntegration::removeBackingStore(QWindow* window)
+{
+    m_backingStores.remove(window);
+}
+
 #ifndef QT_NO_OPENGL
 QPlatformOpenGLContext *QWasmIntegration::createPlatformOpenGLContext(QOpenGLContext *context) const
 {