refactor(new_editor): centralize win32 frame execution

new_editor/app/Platform/Win32/EditorWindow.cpp

@@ -222,12 +222,16 @@ bool EditorWindow::Initialize(
              << " scale=" << GetDpiScale();
     LogRuntimeTrace("window", dpiTrace.str());
 
-    return m_runtime->Initialize(
+    const bool initialized = m_runtime->Initialize(
         m_state->window.hwnd,
         repoRoot,
         editorContext,
         captureRoot,
         autoCaptureOnStartup);
+    if (initialized) {
+        RequestFrame(EditorWindowFrameRequestReason::Initial);
+    }
+    return initialized;
 }
 
 void EditorWindow::Shutdown() {
@@ -385,6 +389,7 @@ void EditorWindow::OnResize(UINT width, UINT height) {
     if (!matchesPredictedClientSize) {
         ApplyWindowResize(width, height);
     }
+    RequestFrame(EditorWindowFrameRequestReason::Resize);
 }
 
 void EditorWindow::OnEnterSizeMove() {
@@ -399,6 +404,7 @@ void EditorWindow::OnExitSizeMove() {
     if (QueryCurrentClientPixelSize(width, height)) {
         ApplyWindowResize(width, height);
     }
+    RequestFrame(EditorWindowFrameRequestReason::ExitSizeMove);
 }
 
 void EditorWindow::OnDpiChanged(UINT dpi, const RECT& suggestedRect) {
@@ -427,6 +433,7 @@ void EditorWindow::OnDpiChanged(UINT dpi, const RECT& suggestedRect) {
     trace << "dpi changed to " << m_chromeController->GetWindowDpi()
           << " scale=" << GetDpiScale();
     LogRuntimeTrace("window", trace.str());
+    RequestFrame(EditorWindowFrameRequestReason::DpiChanged);
 }
 
 bool EditorWindow::IsVerboseRuntimeTraceEnabled() {
@@ -651,19 +658,15 @@ EditorWindowFrameTransferRequests EditorWindow::RenderFrame(
     return transferRequests;
 }
 
-EditorWindowFrameTransferRequests EditorWindow::OnPaintMessage(
-    EditorContext& editorContext,
-    bool globalTabDragActive) {
+void EditorWindow::OnPaintMessage() {
     if (!m_runtime->IsReady() || m_state->window.hwnd == nullptr) {
-        return {};
+        return;
     }
 
     PAINTSTRUCT paintStruct = {};
     BeginPaint(m_state->window.hwnd, &paintStruct);
-    const EditorWindowFrameTransferRequests transferRequests =
-        RenderFrame(editorContext, globalTabDragActive);
     EndPaint(m_state->window.hwnd, &paintStruct);
-    return transferRequests;
+    RequestFrame(EditorWindowFrameRequestReason::PaintMessage);
 }
 
 UIRect EditorWindow::ResolveWorkspaceBounds(float clientWidthDips, float clientHeightDips) const {
@@ -926,6 +929,17 @@ void EditorWindow::ResetInputModifiers() {
 
 void EditorWindow::RequestManualScreenshot() {
     m_runtime->RequestManualScreenshot("manual_f12");
+    RequestFrame(EditorWindowFrameRequestReason::ManualScreenshot);
+}
+
+void EditorWindow::RequestFrame(EditorWindowFrameRequestReason reason) {
+    m_pendingFrameRequestReasons |= ToFrameRequestMask(reason);
+}
+
+std::uint32_t EditorWindow::ConsumePendingFrameRequestReasons() {
+    const std::uint32_t pendingFrameRequestReasons = m_pendingFrameRequestReasons;
+    m_pendingFrameRequestReasons = 0u;
+    return pendingFrameRequestReasons;
 }
 
 bool EditorWindow::IsPointerInsideClientArea() const {