New M3 Demo App for Master Channel (#1378)

* Added components * Added test * Added README * Run flutter format * Added all the updated components and tests * Added README file * Update README.md * Add textfields to M3 demo app * move textfield to exprerimental/ * Update component_screen_test.dart * Fixed comment: changed sdk version * Changed all double quotes to single * Added trailing comma, changed all private fields to public except private state classes * Added enum for screen selection * Removed comment for material_3_demo * Added experimental m3 demo app to master CI pipeline * fixed failing tests * Modified the analysis_options.yaml * Fixed warning * Ran flutter format command Co-authored-by: Qun Cheng <quncheng@google.com> Co-authored-by: hangyu <108393416+hangyujin@users.noreply.github.com>
2025-11-11 07:18:15 +00:00 · 2022-08-18 05:38:13 -07:00
parent 0cb2bf64d7
commit bd00db0ecc
124 changed files with 5898 additions and 0 deletions
--- a/experimental/material_3_demo/windows/runner/flutter_window.cpp
+++ b/experimental/material_3_demo/windows/runner/flutter_window.cpp
@@ -0,0 +1,61 @@
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}