Flutter Windows Embedder
Public Member Functions | List of all members
flutter::WindowManager Class Reference

#include <window_manager.h>

Public Member Functions

 WindowManager (FlutterWindowsEngine *engine)
 
virtual ~WindowManager ()=default
 
void Initialize (const WindowingInitRequest *request)
 
FlutterViewId CreateRegularWindow (const RegularWindowCreationRequest *request)
 
FlutterViewId CreateDialogWindow (const DialogWindowCreationRequest *request)
 
FlutterViewId CreateTooltipWindow (const TooltipWindowCreationRequest *request)
 
std::optional< LRESULT > HandleMessage (HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
 
void OnEngineShutdown ()
 

Detailed Description

Definition at line 109 of file window_manager.h.

Constructor & Destructor Documentation

◆ WindowManager()

flutter::WindowManager::WindowManager ( FlutterWindowsEngine *  engine)
explicit

Definition at line 24 of file window_manager.cc.

24 : engine_(engine) {}

◆ ~WindowManager()

virtual flutter::WindowManager::~WindowManager ( )
virtualdefault

Member Function Documentation

◆ CreateDialogWindow()

FlutterViewId flutter::WindowManager::CreateDialogWindow ( const DialogWindowCreationRequest *  request)

Definition at line 45 of file window_manager.cc.

46  {
47  auto window = HostWindow::CreateDialogWindow(
48  this, engine_, request->preferred_size, request->preferred_constraints,
49  request->title, request->parent_or_null);
50  if (!window || !window->GetWindowHandle()) {
51  FML_LOG(ERROR) << "Failed to create host window";
52  return -1;
53  }
54  FlutterViewId const view_id = window->view_controller_->view()->view_id();
55  active_windows_[window->GetWindowHandle()] = std::move(window);
56  return view_id;
57 }
flutter::HostWindow::CreateDialogWindow
static std::unique_ptr< HostWindow > CreateDialogWindow(WindowManager *window_manager, FlutterWindowsEngine *engine, const WindowSizeRequest &preferred_size, const WindowConstraints &preferred_constraints, LPCWSTR title, HWND parent)
Definition: host_window.cc:216
flutter::FlutterViewId
int64_t FlutterViewId
Definition: accessibility_plugin.h:15

References flutter::HostWindow::CreateDialogWindow(), flutter::DialogWindowCreationRequest::parent_or_null, flutter::DialogWindowCreationRequest::preferred_constraints, flutter::DialogWindowCreationRequest::preferred_size, and flutter::DialogWindowCreationRequest::title.

Referenced by InternalFlutterWindows_WindowManager_CreateDialogWindow().

◆ CreateRegularWindow()

FlutterViewId flutter::WindowManager::CreateRegularWindow ( const RegularWindowCreationRequest *  request)

Definition at line 31 of file window_manager.cc.

32  {
33  auto window = HostWindow::CreateRegularWindow(
34  this, engine_, request->preferred_size, request->preferred_constraints,
35  request->title);
36  if (!window || !window->GetWindowHandle()) {
37  FML_LOG(ERROR) << "Failed to create host window";
38  return -1;
39  }
40  FlutterViewId const view_id = window->view_controller_->view()->view_id();
41  active_windows_[window->GetWindowHandle()] = std::move(window);
42  return view_id;
43 }
flutter::HostWindow::CreateRegularWindow
static std::unique_ptr< HostWindow > CreateRegularWindow(WindowManager *window_manager, FlutterWindowsEngine *engine, const WindowSizeRequest &preferred_size, const WindowConstraints &preferred_constraints, LPCWSTR title)
Definition: host_window.cc:205

References flutter::HostWindow::CreateRegularWindow(), flutter::RegularWindowCreationRequest::preferred_constraints, flutter::RegularWindowCreationRequest::preferred_size, and flutter::RegularWindowCreationRequest::title.

Referenced by InternalFlutterWindows_WindowManager_CreateRegularWindow().

◆ CreateTooltipWindow()

FlutterViewId flutter::WindowManager::CreateTooltipWindow ( const TooltipWindowCreationRequest *  request)

Definition at line 59 of file window_manager.cc.

60  {
61  auto window = HostWindow::CreateTooltipWindow(
62  this, engine_, request->preferred_constraints,
63  request->is_sized_to_content, request->get_position_callback,
64  request->parent);
65  if (!window || !window->GetWindowHandle()) {
66  FML_LOG(ERROR) << "Failed to create host window";
67  return -1;
68  }
69  FlutterViewId const view_id = window->view_controller_->view()->view_id();
70  active_windows_[window->GetWindowHandle()] = std::move(window);
71  return view_id;
72 }
flutter::HostWindow::CreateTooltipWindow
static std::unique_ptr< HostWindow > CreateTooltipWindow(WindowManager *window_manager, FlutterWindowsEngine *engine, const WindowConstraints &preferred_constraints, bool is_sized_to_content, GetWindowPositionCallback get_position_callback, HWND parent)
Definition: host_window.cc:229

References flutter::HostWindow::CreateTooltipWindow(), flutter::TooltipWindowCreationRequest::get_position_callback, flutter::TooltipWindowCreationRequest::is_sized_to_content, flutter::TooltipWindowCreationRequest::parent, and flutter::TooltipWindowCreationRequest::preferred_constraints.

Referenced by InternalFlutterWindows_WindowManager_CreateTooltipWindow().

◆ HandleMessage()

std::optional< LRESULT > flutter::WindowManager::HandleMessage ( HWND  hwnd,
UINT  message,
WPARAM  wparam,
LPARAM  lparam 
)

Definition at line 90 of file window_manager.cc.

93  {
94  if (message == WM_NCDESTROY) {
95  active_windows_.erase(hwnd);
96  return std::nullopt;
97  }
98 
99  HostWindow* host_window = HostWindow::GetThisFromHandle(hwnd);
100  FlutterWindowsView* view =
101  host_window ? host_window->view_controller_->view() : nullptr;
102 
103  if (!view) {
104  FML_LOG(WARNING) << "Received message for unknown view";
105  return std::nullopt;
106  }
107 
108  WindowsMessage message_struct = {.view_id = view->view_id(),
109  .hwnd = hwnd,
110  .message = message,
111  .wParam = wparam,
112  .lParam = lparam,
113  .result = 0,
114  .handled = false};
115 
116  // Not initialized yet.
117  if (!isolate_) {
118  return std::nullopt;
119  }
120 
121  IsolateScope scope(*isolate_);
122  on_message_(&message_struct);
123  if (message_struct.handled) {
124  return message_struct.result;
125  } else {
126  return std::nullopt;
127  }
128 }
flutter::HostWindow::GetThisFromHandle
static HostWindow * GetThisFromHandle(HWND hwnd)
Definition: host_window.cc:335
message
Win32Message message
Definition: keyboard_unittests.cc:137

References flutter::HostWindow::GetThisFromHandle(), flutter::WindowsMessage::handled, message, flutter::WindowsMessage::result, flutter::HostWindow::view_controller_, flutter::FlutterWindowsView::view_id(), and flutter::WindowsMessage::view_id.

◆ Initialize()

void flutter::WindowManager::Initialize ( const WindowingInitRequest *  request)

Definition at line 26 of file window_manager.cc.

26  {
27  on_message_ = request->on_message;
28  isolate_ = Isolate::Current();
29 }
flutter::Isolate::Current
static Isolate Current()
Definition: isolate_scope.cc:9

References flutter::Isolate::Current(), and flutter::WindowingInitRequest::on_message.

Referenced by InternalFlutterWindows_WindowManager_Initialize().

◆ OnEngineShutdown()

void flutter::WindowManager::OnEngineShutdown ( )

Definition at line 74 of file window_manager.cc.

74  {
75  // Don't send any more messages to isolate.
76  on_message_ = nullptr;
77  std::vector<HWND> active_handles;
78  active_handles.reserve(active_windows_.size());
79  for (auto& [hwnd, window] : active_windows_) {
80  active_handles.push_back(hwnd);
81  }
82  for (auto hwnd : active_handles) {
83  // This will destroy the window, which will in turn remove the
84  // HostWindow from map when handling WM_NCDESTROY inside
85  // HandleMessage.
86  InternalFlutterWindows_WindowManager_OnDestroyWindow(hwnd);
87  }
88 }
InternalFlutterWindows_WindowManager_OnDestroyWindow
void InternalFlutterWindows_WindowManager_OnDestroyWindow(HWND hwnd)
Definition: window_manager.cc:193

References InternalFlutterWindows_WindowManager_OnDestroyWindow().

The documentation for this class was generated from the following files: