...

1 files changed, 6 insertions, 334 deletions

diff --git a/src/ui/window.cpp b/src/ui/window.cpp
index a3279ba7..4f414385 100644
--- a/src/ui/window.cpp
+++ b/src/ui/window.cpp
@@ -1,357 +1,29 @@
 #include "cru/ui/window.hpp"
 
-#include "cru/platform/graph/painter.hpp"
-#include "cru/platform/native/ui_application.hpp"
-#include "cru/platform/native/window.hpp"
 #include "cru/ui/render/window_render_object.hpp"
-#include "routed_event_dispatch.hpp"
-
-#include <list>
+#include "cru/ui/ui_host.hpp"
 
 namespace cru::ui {
-using cru::platform::native::FocusChangeType;
-using cru::platform::native::INativeWindow;
-using cru::platform::native::INativeWindowResolver;
-using cru::platform::native::IUiApplication;
-using cru::platform::native::MouseEnterLeaveType;
-
-namespace event_names {
-#ifdef CRU_DEBUG
-#define CRU_DEFINE_EVENT_NAME(name) constexpr const char* name = #name;
-#else
-#define CRU_DEFINE_EVENT_NAME(name) constexpr const char* name = "";
-#endif
-
-CRU_DEFINE_EVENT_NAME(LoseFocus)
-CRU_DEFINE_EVENT_NAME(GainFocus)
-CRU_DEFINE_EVENT_NAME(MouseEnter)
-CRU_DEFINE_EVENT_NAME(MouseLeave)
-CRU_DEFINE_EVENT_NAME(MouseMove)
-CRU_DEFINE_EVENT_NAME(MouseDown)
-CRU_DEFINE_EVENT_NAME(MouseUp)
-CRU_DEFINE_EVENT_NAME(KeyDown)
-CRU_DEFINE_EVENT_NAME(KeyUp)
-CRU_DEFINE_EVENT_NAME(Char)
-
-#undef CRU_DEFINE_EVENT_NAME
-}  // namespace event_names
-
-namespace {
-bool IsAncestor(Control* control, Control* ancestor) {
-  while (control != nullptr) {
-    if (control == ancestor) return true;
-    control = control->GetParent();
-  }
-  return false;
-}
-
-std::list<Control*> GetAncestorList(Control* control) {
-  std::list<Control*> l;
-  while (control != nullptr) {
-    l.push_front(control);
-    control = control->GetParent();
-  }
-  return l;
-}
-
-Control* FindLowestCommonAncestor(Control* left, Control* right) {
-  if (left == nullptr || right == nullptr) return nullptr;
-
-  auto&& left_list = GetAncestorList(left);
-  auto&& right_list = GetAncestorList(right);
-
-  // the root is different
-  if (left_list.front() != right_list.front()) return nullptr;
-
-  // find the last same control or the last control (one is ancestor of the
-  // other)
-  auto left_i = left_list.cbegin();
-  auto right_i = right_list.cbegin();
-
-  while (true) {
-    if (left_i == left_list.cend()) {
-      return *(--left_i);
-    }
-    if (right_i == right_list.cend()) {
-      return *(--right_i);
-    }
-    if (*left_i != *right_i) {
-      return *(--left_i);
-    }
-    ++left_i;
-    ++right_i;
-  }
-}
-}  // namespace
 
 Window* Window::CreateOverlapped() {
   return new Window(tag_overlapped_constructor{});
 }
 
-namespace {
-template <typename T>
-inline void BindNativeEvent(
-    Window* window, INativeWindow* native_window, IEvent<T>* event,
-    void (Window::*handler)(INativeWindow*, typename IEvent<T>::EventArgs),
-    std::vector<EventRevokerGuard>& guard_pool) {
-  guard_pool.push_back(EventRevokerGuard(event->AddHandler(
-      std::bind(handler, window, native_window, std::placeholders::_1))));
-}
-}  // namespace
-
-Window::Window(tag_overlapped_constructor)
-    : mouse_hover_control_(nullptr),
-      focus_control_(this),
-      mouse_captured_control_(nullptr) {
-  window_ = this;
-  native_window_resolver_ =
-      IUiApplication::GetInstance()->CreateWindow(nullptr);
-
-  const auto native_window = native_window_resolver_->Resolve();
-
-  render_object_.reset(new render::WindowRenderObject(this));
-  render_object_->SetAttachedControl(this);
-
-  BindNativeEvent(this, native_window, native_window->DestroyEvent(),
-                  &Window::OnNativeDestroy, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->PaintEvent(),
-                  &Window::OnNativePaint, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->ResizeEvent(),
-                  &Window::OnNativeResize, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->FocusEvent(),
-                  &Window::OnNativeFocus, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->MouseEnterLeaveEvent(),
-                  &Window::OnNativeMouseEnterLeave, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->MouseMoveEvent(),
-                  &Window::OnNativeMouseMove, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->MouseDownEvent(),
-                  &Window::OnNativeMouseDown, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->MouseUpEvent(),
-                  &Window::OnNativeMouseUp, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->KeyDownEvent(),
-                  &Window::OnNativeKeyDown, event_revoker_guards_);
-  BindNativeEvent(this, native_window, native_window->KeyUpEvent(),
-                  &Window::OnNativeKeyUp, event_revoker_guards_);
+Window::Window(tag_overlapped_constructor) {
+  managed_ui_host_ = std::make_unique<UiHost>(this);
 }
 
 Window::~Window() {
-  TraverseDescendants(
-      [this](Control* control) { control->OnDetachToWindow(this); });
+  // explicit destroy ui host first.
+  managed_ui_host_.reset();
 }
 
 std::string_view Window::GetControlType() const { return control_type; }
 
-render::RenderObject* Window::GetRenderObject() const {
-  return render_object_.get();
-}
-
-platform::native::INativeWindow* Window::ResolveNativeWindow() {
-  return native_window_resolver_->Resolve();
-}
-
-bool Window::RequestFocusFor(Control* control) {
-  Expects(control != nullptr);  // The control to request focus can't be null.
-                               // You can set it as the window.
-
-  if (focus_control_ == control) return true;
-
-  DispatchEvent(event_names::LoseFocus, focus_control_,
-                &Control::LoseFocusEvent, nullptr, false);
-
-  focus_control_ = control;
-
-  DispatchEvent(event_names::GainFocus, control, &Control::GainFocusEvent,
-                nullptr, false);
-
-  return true;
-}
-
-Control* Window::GetFocusControl() { return focus_control_; }
-
-bool Window::CaptureMouseFor(Control* control) {
-  const auto native_window = ResolveNativeWindow();
-  if (!native_window) return false;
-
-  if (control == mouse_captured_control_) return true;
-
-  if (control == nullptr) {
-    const auto old_capture_control = mouse_captured_control_;
-    mouse_captured_control_ =
-        nullptr;  // update this in case this is used in event handlers
-    if (old_capture_control != mouse_hover_control_) {
-      DispatchMouseHoverControlChangeEvent(
-          old_capture_control, mouse_hover_control_,
-          native_window->GetMousePosition(), true, false);
-    }
-    UpdateCursor();
-    return true;
-  }
-
-  if (mouse_captured_control_) return false;
-
-  mouse_captured_control_ = control;
-  DispatchMouseHoverControlChangeEvent(
-      mouse_hover_control_, mouse_captured_control_,
-      native_window->GetMousePosition(), false, true);
-  UpdateCursor();
-  return true;
-}
-
-Control* Window::GetMouseCaptureControl() { return mouse_captured_control_; }
+render::RenderObject* Window::GetRenderObject() const { return render_object_; }
 
 void Window::OnChildChanged(Control* old_child, Control* new_child) {
   if (old_child) render_object_->RemoveChild(0);
   if (new_child) render_object_->AddChild(new_child->GetRenderObject(), 0);
 }
-
-Control* Window::HitTest(const Point& point) {
-  return render_object_->HitTest(point)->GetAttachedControl();
-}
-
-void Window::OnNativeDestroy(INativeWindow* window, std::nullptr_t) {
-  CRU_UNUSED(window)
-  delete this;  // TODO: Finally change this.
-}
-
-void Window::OnNativePaint(INativeWindow* window, std::nullptr_t) {
-  auto painter = window->BeginPaint();
-  render_object_->Draw(painter.get());
-  painter->EndDraw();
-}
-
-void Window::OnNativeResize(INativeWindow* window, const Size& size) {
-  CRU_UNUSED(window)
-  CRU_UNUSED(size)
-
-  render_object_->GetRenderHost()->InvalidateLayout();
-}
-
-void Window::OnNativeFocus(INativeWindow* window, FocusChangeType focus) {
-  CRU_UNUSED(window)
-
-  focus == FocusChangeType::Gain
-      ? DispatchEvent(event_names::GainFocus, focus_control_,
-                      &Control::GainFocusEvent, nullptr, true)
-      : DispatchEvent(event_names::LoseFocus, focus_control_,
-                      &Control::LoseFocusEvent, nullptr, true);
-}
-
-void Window::OnNativeMouseEnterLeave(INativeWindow* window,
-                                     MouseEnterLeaveType type) {
-  CRU_UNUSED(window)
-
-  if (type == MouseEnterLeaveType::Leave) {
-    DispatchEvent(event_names::MouseLeave, mouse_hover_control_,
-                  &Control::MouseLeaveEvent, nullptr);
-    mouse_hover_control_ = nullptr;
-  }
-}
-
-void Window::OnNativeMouseMove(INativeWindow* window, const Point& point) {
-  CRU_UNUSED(window)
-
-  // Find the first control that hit test succeed.
-  const auto new_mouse_hover_control = HitTest(point);
-  const auto old_mouse_hover_control = mouse_hover_control_;
-  mouse_hover_control_ = new_mouse_hover_control;
-
-  if (mouse_captured_control_) {
-    const auto n = FindLowestCommonAncestor(new_mouse_hover_control,
-                                            mouse_captured_control_);
-    const auto o = FindLowestCommonAncestor(old_mouse_hover_control,
-                                            mouse_captured_control_);
-    bool a = IsAncestor(o, n);
-    if (a) {
-      DispatchEvent(event_names::MouseLeave, o, &Control::MouseLeaveEvent, n);
-    } else {
-      DispatchEvent(event_names::MouseEnter, n, &Control::MouseEnterEvent, o,
-                    point);
-    }
-    DispatchEvent(event_names::MouseMove, mouse_captured_control_,
-                  &Control::MouseMoveEvent, nullptr, point);
-    UpdateCursor();
-    return;
-  }
-
-  DispatchMouseHoverControlChangeEvent(
-      old_mouse_hover_control, new_mouse_hover_control, point, false, false);
-  DispatchEvent(event_names::MouseMove, new_mouse_hover_control,
-                &Control::MouseMoveEvent, nullptr, point);
-  UpdateCursor();
-}
-
-void Window::OnNativeMouseDown(
-    INativeWindow* window,
-    const platform::native::NativeMouseButtonEventArgs& args) {
-  CRU_UNUSED(window)
-
-  Control* control =
-      mouse_captured_control_ ? mouse_captured_control_ : HitTest(args.point);
-  DispatchEvent(event_names::MouseDown, control, &Control::MouseDownEvent,
-                nullptr, args.point, args.button, args.modifier);
-}
-
-void Window::OnNativeMouseUp(
-    INativeWindow* window,
-    const platform::native::NativeMouseButtonEventArgs& args) {
-  CRU_UNUSED(window)
-
-  Control* control =
-      mouse_captured_control_ ? mouse_captured_control_ : HitTest(args.point);
-  DispatchEvent(event_names::MouseUp, control, &Control::MouseUpEvent, nullptr,
-                args.point, args.button, args.modifier);
-}
-
-void Window::OnNativeKeyDown(INativeWindow* window,
-                             const platform::native::NativeKeyEventArgs& args) {
-  CRU_UNUSED(window)
-
-  DispatchEvent(event_names::KeyDown, focus_control_, &Control::KeyDownEvent,
-                nullptr, args.key, args.modifier);
-}
-
-void Window::OnNativeKeyUp(INativeWindow* window,
-                           const platform::native::NativeKeyEventArgs& args) {
-  CRU_UNUSED(window)
-
-  DispatchEvent(event_names::KeyUp, focus_control_, &Control::KeyUpEvent,
-                nullptr, args.key, args.modifier);
-}
-
-void Window::OnNativeChar(platform::native::INativeWindow* window,
-                          std::string c) {
-  CRU_UNUSED(window)
-
-  DispatchEvent(event_names::Char, focus_control_, &Control::CharEvent, nullptr,
-                std::move(c));
-}
-
-void Window::DispatchMouseHoverControlChangeEvent(Control* old_control,
-                                                  Control* new_control,
-                                                  const Point& point,
-                                                  bool no_leave,
-                                                  bool no_enter) {
-  if (new_control != old_control)  // if the mouse-hover-on control changed
-  {
-    const auto lowest_common_ancestor =
-        FindLowestCommonAncestor(old_control, new_control);
-    if (!no_leave && old_control != nullptr)
-      DispatchEvent(event_names::MouseLeave, old_control,
-                    &Control::MouseLeaveEvent,
-                    lowest_common_ancestor);  // dispatch mouse leave event.
-    if (!no_enter && new_control != nullptr) {
-      DispatchEvent(event_names::MouseEnter, new_control,
-                    &Control::MouseEnterEvent, lowest_common_ancestor,
-                    point);  // dispatch mouse enter event.
-    }
-  }
-}
-
-void Window::UpdateCursor() {
-  if (const auto native_window = ResolveNativeWindow()) {
-    const auto capture = GetMouseCaptureControl();
-    native_window->SetCursor(
-        (capture ? capture : GetMouseHoverControl())->GetInheritedCursor());
-  }
-}
 }  // namespace cru::ui