Main coves client
bretton.dev
1#include "flutter_window.h"
2
3#include <optional>
4
5#include "flutter/generated_plugin_registrant.h"
6
7FlutterWindow::FlutterWindow(const flutter::DartProject& project)
8 : project_(project) {}
9
10FlutterWindow::~FlutterWindow() {}
11
12bool FlutterWindow::OnCreate() {
13 if (!Win32Window::OnCreate()) {
14 return false;
15 }
16
17 RECT frame = GetClientArea();
18
19 // The size here must match the window dimensions to avoid unnecessary surface
20 // creation / destruction in the startup path.
21 flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
22 frame.right - frame.left, frame.bottom - frame.top, project_);
23 // Ensure that basic setup of the controller was successful.
24 if (!flutter_controller_->engine() || !flutter_controller_->view()) {
25 return false;
26 }
27 RegisterPlugins(flutter_controller_->engine());
28 SetChildContent(flutter_controller_->view()->GetNativeWindow());
29
30 flutter_controller_->engine()->SetNextFrameCallback([&]() {
31 this->Show();
32 });
33
34 // Flutter can complete the first frame before the "show window" callback is
35 // registered. The following call ensures a frame is pending to ensure the
36 // window is shown. It is a no-op if the first frame hasn't completed yet.
37 flutter_controller_->ForceRedraw();
38
39 return true;
40}
41
42void FlutterWindow::OnDestroy() {
43 if (flutter_controller_) {
44 flutter_controller_ = nullptr;
45 }
46
47 Win32Window::OnDestroy();
48}
49
50LRESULT
51FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
52 WPARAM const wparam,
53 LPARAM const lparam) noexcept {
54 // Give Flutter, including plugins, an opportunity to handle window messages.
55 if (flutter_controller_) {
56 std::optional<LRESULT> result =
57 flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
58 lparam);
59 if (result) {
60 return *result;
61 }
62 }
63
64 switch (message) {
65 case WM_FONTCHANGE:
66 flutter_controller_->engine()->ReloadSystemFonts();
67 break;
68 }
69
70 return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
71}