From 6ce70ed4b08c7db20b6b384be26c7fc4e11c98de Mon Sep 17 00:00:00 2001 From: crupest Date: Wed, 28 Oct 2020 20:51:55 +0800 Subject: ... --- src/ui/CMakeLists.txt | 4 +- src/ui/ContentControl.cpp | 6 +- src/ui/Control.cpp | 20 +- src/ui/LayoutControl.cpp | 4 +- src/ui/UiHost.cpp | 416 -------------------------------- src/ui/Window.cpp | 4 +- src/ui/WindowHost.cpp | 418 +++++++++++++++++++++++++++++++++ src/ui/controls/TextControlService.hpp | 6 +- src/ui/render/RenderObject.cpp | 6 +- src/ui/render/WindowRenderObject.cpp | 4 +- 10 files changed, 445 insertions(+), 443 deletions(-) delete mode 100644 src/ui/UiHost.cpp create mode 100644 src/ui/WindowHost.cpp (limited to 'src') diff --git a/src/ui/CMakeLists.txt b/src/ui/CMakeLists.txt index a83ab1d7..d59fd7da 100644 --- a/src/ui/CMakeLists.txt +++ b/src/ui/CMakeLists.txt @@ -12,9 +12,9 @@ add_library(cru_ui STATIC NoChildControl.cpp ShortcutHub.cpp UiEvent.cpp - UiHost.cpp UiManager.cpp Window.cpp + WindowHost.cpp controls/Button.cpp controls/Container.cpp controls/FlexLayout.cpp @@ -42,9 +42,9 @@ target_sources(cru_ui PUBLIC ${CRU_UI_INCLUDE_DIR}/NoChildControl.hpp ${CRU_UI_INCLUDE_DIR}/ShortcutHub.hpp ${CRU_UI_INCLUDE_DIR}/UiEvent.hpp - ${CRU_UI_INCLUDE_DIR}/UiHost.hpp ${CRU_UI_INCLUDE_DIR}/UiManager.hpp ${CRU_UI_INCLUDE_DIR}/Window.hpp + ${CRU_UI_INCLUDE_DIR}/WindowHost.hpp ${CRU_UI_INCLUDE_DIR}/controls/Base.hpp ${CRU_UI_INCLUDE_DIR}/controls/Button.hpp ${CRU_UI_INCLUDE_DIR}/controls/Container.hpp diff --git a/src/ui/ContentControl.cpp b/src/ui/ContentControl.cpp index 8d1a17d2..60d944d6 100644 --- a/src/ui/ContentControl.cpp +++ b/src/ui/ContentControl.cpp @@ -12,16 +12,16 @@ void ContentControl::SetChild(Control* child) { Expects(!dynamic_cast(child)); // Can't add a window as child. if (child == child_) return; - const auto host = GetUiHost(); + const auto host = GetWindowHost(); const auto old_child = child_; child_ = child; if (old_child) { old_child->_SetParent(nullptr); - old_child->_SetDescendantUiHost(nullptr); + old_child->_SetDescendantWindowHost(nullptr); } if (child) { child->_SetParent(this); - child->_SetDescendantUiHost(host); + child->_SetDescendantWindowHost(host); } OnChildChanged(old_child, child); } diff --git a/src/ui/Control.cpp b/src/ui/Control.cpp index cd1367fe..cd7ed0dc 100644 --- a/src/ui/Control.cpp +++ b/src/ui/Control.cpp @@ -3,7 +3,7 @@ #include "cru/platform/native/Cursor.hpp" #include "cru/platform/native/UiApplication.hpp" #include "cru/ui/Base.hpp" -#include "cru/ui/UiHost.hpp" +#include "cru/ui/WindowHost.hpp" #include "RoutedEventDispatch.hpp" #include @@ -32,7 +32,7 @@ void Control::_SetParent(Control* parent) { if (old_parent != new_parent) OnParentChanged(old_parent, new_parent); } -void Control::_SetDescendantUiHost(UiHost* host) { +void Control::_SetDescendantWindowHost(WindowHost* host) { if (host == nullptr && ui_host_ == nullptr) return; // You can only attach or detach window. @@ -64,35 +64,35 @@ void Control::_TraverseDescendants( } bool Control::RequestFocus() { - auto host = GetUiHost(); + auto host = GetWindowHost(); if (host == nullptr) return false; return host->RequestFocusFor(this); } bool Control::HasFocus() { - auto host = GetUiHost(); + auto host = GetWindowHost(); if (host == nullptr) return false; return host->GetFocusControl() == this; } bool Control::CaptureMouse() { - auto host = GetUiHost(); + auto host = GetWindowHost(); if (host == nullptr) return false; return host->CaptureMouseFor(this); } bool Control::ReleaseMouse() { - auto host = GetUiHost(); + auto host = GetWindowHost(); if (host == nullptr) return false; return host->CaptureMouseFor(nullptr); } bool Control::IsMouseCaptured() { - auto host = GetUiHost(); + auto host = GetWindowHost(); if (host == nullptr) return false; return host->GetMouseCaptureControl() == this; @@ -113,7 +113,7 @@ std::shared_ptr Control::GetInheritedCursor() { void Control::SetCursor(std::shared_ptr cursor) { cursor_ = std::move(cursor); - const auto host = GetUiHost(); + const auto host = GetWindowHost(); if (host != nullptr) { host->UpdateCursor(); } @@ -124,7 +124,7 @@ void Control::OnParentChanged(Control* old_parent, Control* new_parent) { CRU_UNUSED(new_parent) } -void Control::OnAttachToHost(UiHost* host) { CRU_UNUSED(host) } +void Control::OnAttachToHost(WindowHost* host) { CRU_UNUSED(host) } -void Control::OnDetachFromHost(UiHost* host) { CRU_UNUSED(host) } +void Control::OnDetachFromHost(WindowHost* host) { CRU_UNUSED(host) } } // namespace cru::ui diff --git a/src/ui/LayoutControl.cpp b/src/ui/LayoutControl.cpp index 4813566b..05fcdc4a 100644 --- a/src/ui/LayoutControl.cpp +++ b/src/ui/LayoutControl.cpp @@ -19,7 +19,7 @@ void LayoutControl::AddChild(Control* control, const Index position) { children_.insert(this->children_.cbegin() + position, control); control->_SetParent(this); - control->_SetDescendantUiHost(GetUiHost()); + control->_SetDescendantWindowHost(GetWindowHost()); OnAddChild(control, position); } @@ -36,7 +36,7 @@ void LayoutControl::RemoveChild(const Index position) { children_.erase(i); child->_SetParent(nullptr); - child->_SetDescendantUiHost(nullptr); + child->_SetDescendantWindowHost(nullptr); OnRemoveChild(child, position); } diff --git a/src/ui/UiHost.cpp b/src/ui/UiHost.cpp deleted file mode 100644 index a881c16d..00000000 --- a/src/ui/UiHost.cpp +++ /dev/null @@ -1,416 +0,0 @@ -#include "cru/ui/UiHost.hpp" - -#include "RoutedEventDispatch.hpp" -#include "cru/common/Logger.hpp" -#include "cru/platform/graph/Painter.hpp" -#include "cru/platform/native/InputMethod.hpp" -#include "cru/platform/native/UiApplication.hpp" -#include "cru/platform/native/Window.hpp" -#include "cru/ui/DebugFlags.hpp" -#include "cru/ui/Window.hpp" -#include "cru/ui/render/MeasureRequirement.hpp" -#include "cru/ui/render/WindowRenderObject.hpp" - -namespace cru::ui { -using platform::native::INativeWindow; -using platform::native::IUiApplication; - -namespace event_names { -#ifdef CRU_DEBUG -// clang-format off -#define CRU_DEFINE_EVENT_NAME(name) constexpr const char16_t* name = CRU_MAKE_UNICODE_LITERAL(name); -// clang-format on -#else -#define CRU_DEFINE_EVENT_NAME(name) constexpr const char16_t* name = u""; -#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) - -#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; -} - -// Ancestor at last. -std::vector GetAncestorList(Control* control) { - std::vector l; - while (control != nullptr) { - l.push_back(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.back() != right_list.back()) return nullptr; - - // find the last same control or the last control (one is ancestor of the - // other) - auto left_iter = left_list.crbegin(); - auto right_iter = right_list.crbegin(); - - while (true) { - if (left_iter == left_list.crend()) { - return left_list.front(); - } - if (right_iter == right_list.crend()) { - return right_list.front(); - } - if (*left_iter != *right_iter) { - return *(--left_iter); - } - ++left_iter; - ++right_iter; - } -} -} // namespace - -namespace { -template -inline void BindNativeEvent( - UiHost* host, INativeWindow* native_window, IEvent* event, - void (UiHost::*handler)(INativeWindow*, typename IEvent::EventArgs), - std::vector& guard_pool) { - guard_pool.push_back(EventRevokerGuard(event->AddHandler( - std::bind(handler, host, native_window, std::placeholders::_1)))); -} -} // namespace - -UiHost::UiHost(Window* window) - : window_control_(window), - mouse_hover_control_(nullptr), - focus_control_(window), - mouse_captured_control_(nullptr) { - const auto ui_application = IUiApplication::GetInstance(); - native_window_resolver_ = ui_application->CreateWindow(nullptr); - - const auto native_window = native_window_resolver_->Resolve(); - - auto input_method_context = - ui_application->GetInputMethodManager()->GetContext(native_window); - input_method_context->DisableIME(); - - window->ui_host_ = this; - - root_render_object_ = std::make_unique(this); - root_render_object_->SetAttachedControl(window); - window->render_object_ = root_render_object_.get(); - - BindNativeEvent(this, native_window, native_window->DestroyEvent(), - &UiHost::OnNativeDestroy, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->PaintEvent(), - &UiHost::OnNativePaint, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->ResizeEvent(), - &UiHost::OnNativeResize, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->FocusEvent(), - &UiHost::OnNativeFocus, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->MouseEnterLeaveEvent(), - &UiHost::OnNativeMouseEnterLeave, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->MouseMoveEvent(), - &UiHost::OnNativeMouseMove, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->MouseDownEvent(), - &UiHost::OnNativeMouseDown, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->MouseUpEvent(), - &UiHost::OnNativeMouseUp, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->KeyDownEvent(), - &UiHost::OnNativeKeyDown, event_revoker_guards_); - BindNativeEvent(this, native_window, native_window->KeyUpEvent(), - &UiHost::OnNativeKeyUp, event_revoker_guards_); -} - -UiHost::~UiHost() { - deleting_ = true; - window_control_->TraverseDescendants( - [this](Control* control) { control->OnDetachFromHost(this); }); - if (!native_window_destroyed_) { - const auto native_window = native_window_resolver_->Resolve(); - if (native_window) { - native_window->Close(); - } - } -} - -void UiHost::InvalidatePaint() { - if (const auto native_window = native_window_resolver_->Resolve()) - native_window->RequestRepaint(); -} - -void UiHost::InvalidateLayout() { - if constexpr (debug_flags::layout) - log::TagDebug(log_tag, u"A relayout is requested."); - if (!need_layout_) { - platform::native::IUiApplication::GetInstance()->SetImmediate( - [resolver = this->CreateResolver()] { - if (const auto host = resolver.Resolve()) { - host->Relayout(); - host->need_layout_ = false; - host->InvalidatePaint(); - } - }); - need_layout_ = true; - } -} - -bool UiHost::IsLayoutPreferToFillWindow() const { - return layout_prefer_to_fill_window_; -} - -void UiHost::SetLayoutPreferToFillWindow(bool value) { - if (value == layout_prefer_to_fill_window_) return; - layout_prefer_to_fill_window_ = value; - InvalidateLayout(); -} - -void UiHost::Relayout() { - const auto native_window = native_window_resolver_->Resolve(); - const auto client_size = native_window - ? native_window->GetClientSize() - : Size{100, 100}; // a reasonable assumed size - - root_render_object_->Measure( - render::MeasureRequirement{client_size, - IsLayoutPreferToFillWindow() - ? render::MeasureSize(client_size) - : render::MeasureSize::NotSpecified()}, - render::MeasureSize::NotSpecified()); - root_render_object_->Layout(Point{}); - for (auto& action : after_layout_stable_action_) action(); - after_layout_stable_action_.clear(); - after_layout_event_.Raise(AfterLayoutEventArgs{}); - if constexpr (debug_flags::layout) - log::TagDebug(log_tag, u"A relayout is finished."); -} - -bool UiHost::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; - - const auto old_focus_control = focus_control_; - - focus_control_ = control; - - DispatchEvent(event_names::LoseFocus, old_focus_control, - &Control::LoseFocusEvent, nullptr, false); - - DispatchEvent(event_names::GainFocus, control, &Control::GainFocusEvent, - nullptr, false); - - return true; -} - -Control* UiHost::GetFocusControl() { return focus_control_; } - -bool UiHost::CaptureMouseFor(Control* control) { - const auto native_window = native_window_resolver_->Resolve(); - 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* UiHost::GetMouseCaptureControl() { return mouse_captured_control_; } - -void UiHost::RunAfterLayoutStable(std::function action) { - if (need_layout_) { - after_layout_stable_action_.push_back(std::move(action)); - } else { - action(); - } -} - -void UiHost::OnNativeDestroy(INativeWindow* window, std::nullptr_t) { - CRU_UNUSED(window) - native_window_destroyed_ = true; - if (!deleting_ && !retain_after_destroy_) delete window_control_; -} - -void UiHost::OnNativePaint(INativeWindow* window, std::nullptr_t) { - auto painter = window->BeginPaint(); - painter->Clear(colors::white); - root_render_object_->Draw(painter.get()); - painter->EndDraw(); -} - -void UiHost::OnNativeResize(INativeWindow* window, const Size& size) { - CRU_UNUSED(window) - CRU_UNUSED(size) - - InvalidateLayout(); -} - -void UiHost::OnNativeFocus(INativeWindow* window, - platform::native::FocusChangeType focus) { - CRU_UNUSED(window) - - focus == platform::native::FocusChangeType::Gain - ? DispatchEvent(event_names::GainFocus, focus_control_, - &Control::GainFocusEvent, nullptr, true) - : DispatchEvent(event_names::LoseFocus, focus_control_, - &Control::LoseFocusEvent, nullptr, true); -} - -void UiHost::OnNativeMouseEnterLeave( - INativeWindow* window, platform::native::MouseEnterLeaveType type) { - CRU_UNUSED(window) - - if (type == platform::native::MouseEnterLeaveType::Leave) { - DispatchEvent(event_names::MouseLeave, mouse_hover_control_, - &Control::MouseLeaveEvent, nullptr); - mouse_hover_control_ = nullptr; - } -} - -void UiHost::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 UiHost::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 UiHost::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 UiHost::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 UiHost::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 UiHost::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 UiHost::UpdateCursor() { - if (const auto native_window = native_window_resolver_->Resolve()) { - const auto capture = GetMouseCaptureControl(); - native_window->SetCursor( - (capture ? capture : GetMouseHoverControl())->GetInheritedCursor()); - } -} - -Control* UiHost::HitTest(const Point& point) { - const auto render_object = root_render_object_->HitTest(point); - if (render_object) { - const auto control = render_object->GetAttachedControl(); - Ensures(control); - return control; - } - return window_control_; -} -} // namespace cru::ui diff --git a/src/ui/Window.cpp b/src/ui/Window.cpp index dca95ebb..a8cb315b 100644 --- a/src/ui/Window.cpp +++ b/src/ui/Window.cpp @@ -1,7 +1,7 @@ #include "cru/ui/Window.hpp" #include "cru/ui/render/WindowRenderObject.hpp" -#include "cru/ui/UiHost.hpp" +#include "cru/ui/WindowHost.hpp" namespace cru::ui { Window* Window::CreateOverlapped() { @@ -9,7 +9,7 @@ Window* Window::CreateOverlapped() { } Window::Window(tag_overlapped_constructor) { - managed_ui_host_ = std::make_unique(this); + managed_ui_host_ = std::make_unique(this); } Window::~Window() { diff --git a/src/ui/WindowHost.cpp b/src/ui/WindowHost.cpp new file mode 100644 index 00000000..d3dec422 --- /dev/null +++ b/src/ui/WindowHost.cpp @@ -0,0 +1,418 @@ +#include "cru/ui/WindowHost.hpp" + +#include "RoutedEventDispatch.hpp" +#include "cru/common/Logger.hpp" +#include "cru/platform/graph/Painter.hpp" +#include "cru/platform/native/InputMethod.hpp" +#include "cru/platform/native/UiApplication.hpp" +#include "cru/platform/native/Window.hpp" +#include "cru/ui/DebugFlags.hpp" +#include "cru/ui/Window.hpp" +#include "cru/ui/render/MeasureRequirement.hpp" +#include "cru/ui/render/WindowRenderObject.hpp" + +namespace cru::ui { +using platform::native::INativeWindow; +using platform::native::IUiApplication; + +namespace event_names { +#ifdef CRU_DEBUG +// clang-format off +#define CRU_DEFINE_EVENT_NAME(name) constexpr const char16_t* name = CRU_MAKE_UNICODE_LITERAL(name); +// clang-format on +#else +#define CRU_DEFINE_EVENT_NAME(name) constexpr const char16_t* name = u""; +#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) + +#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; +} + +// Ancestor at last. +std::vector GetAncestorList(Control* control) { + std::vector l; + while (control != nullptr) { + l.push_back(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.back() != right_list.back()) return nullptr; + + // find the last same control or the last control (one is ancestor of the + // other) + auto left_iter = left_list.crbegin(); + auto right_iter = right_list.crbegin(); + + while (true) { + if (left_iter == left_list.crend()) { + return left_list.front(); + } + if (right_iter == right_list.crend()) { + return right_list.front(); + } + if (*left_iter != *right_iter) { + return *(--left_iter); + } + ++left_iter; + ++right_iter; + } +} +} // namespace + +namespace { +template +inline void BindNativeEvent( + WindowHost* host, INativeWindow* native_window, IEvent* event, + void (WindowHost::*handler)(INativeWindow*, typename IEvent::EventArgs), + std::vector& guard_pool) { + guard_pool.push_back(EventRevokerGuard(event->AddHandler( + std::bind(handler, host, native_window, std::placeholders::_1)))); +} +} // namespace + +WindowHost::WindowHost(Window* window) + : window_control_(window), + mouse_hover_control_(nullptr), + focus_control_(window), + mouse_captured_control_(nullptr) { + const auto ui_application = IUiApplication::GetInstance(); + native_window_resolver_ = ui_application->CreateWindow(nullptr); + + const auto native_window = native_window_resolver_->Resolve(); + + auto input_method_context = + ui_application->GetInputMethodManager()->GetContext(native_window); + input_method_context->DisableIME(); + + window->ui_host_ = this; + + root_render_object_ = std::make_unique(this); + root_render_object_->SetAttachedControl(window); + window->render_object_ = root_render_object_.get(); + + BindNativeEvent(this, native_window, native_window->DestroyEvent(), + &WindowHost::OnNativeDestroy, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->PaintEvent(), + &WindowHost::OnNativePaint, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->ResizeEvent(), + &WindowHost::OnNativeResize, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->FocusEvent(), + &WindowHost::OnNativeFocus, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->MouseEnterLeaveEvent(), + &WindowHost::OnNativeMouseEnterLeave, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->MouseMoveEvent(), + &WindowHost::OnNativeMouseMove, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->MouseDownEvent(), + &WindowHost::OnNativeMouseDown, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->MouseUpEvent(), + &WindowHost::OnNativeMouseUp, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->KeyDownEvent(), + &WindowHost::OnNativeKeyDown, event_revoker_guards_); + BindNativeEvent(this, native_window, native_window->KeyUpEvent(), + &WindowHost::OnNativeKeyUp, event_revoker_guards_); +} + +WindowHost::~WindowHost() { + deleting_ = true; + window_control_->TraverseDescendants( + [this](Control* control) { control->OnDetachFromHost(this); }); + if (!native_window_destroyed_) { + const auto native_window = native_window_resolver_->Resolve(); + if (native_window) { + native_window->Close(); + } + } +} + +void WindowHost::InvalidatePaint() { + if (const auto native_window = native_window_resolver_->Resolve()) + native_window->RequestRepaint(); +} + +void WindowHost::InvalidateLayout() { + if constexpr (debug_flags::layout) + log::TagDebug(log_tag, u"A relayout is requested."); + if (!need_layout_) { + platform::native::IUiApplication::GetInstance()->SetImmediate( + [resolver = this->CreateResolver()] { + if (const auto host = resolver.Resolve()) { + host->Relayout(); + host->need_layout_ = false; + host->InvalidatePaint(); + } + }); + need_layout_ = true; + } +} + +bool WindowHost::IsLayoutPreferToFillWindow() const { + return layout_prefer_to_fill_window_; +} + +void WindowHost::SetLayoutPreferToFillWindow(bool value) { + if (value == layout_prefer_to_fill_window_) return; + layout_prefer_to_fill_window_ = value; + InvalidateLayout(); +} + +void WindowHost::Relayout() { + const auto native_window = native_window_resolver_->Resolve(); + const auto client_size = native_window + ? native_window->GetClientSize() + : Size{100, 100}; // a reasonable assumed size + + root_render_object_->Measure( + render::MeasureRequirement{client_size, + IsLayoutPreferToFillWindow() + ? render::MeasureSize(client_size) + : render::MeasureSize::NotSpecified()}, + render::MeasureSize::NotSpecified()); + root_render_object_->Layout(Point{}); + for (auto& action : after_layout_stable_action_) action(); + after_layout_stable_action_.clear(); + after_layout_event_.Raise(AfterLayoutEventArgs{}); + if constexpr (debug_flags::layout) + log::TagDebug(log_tag, u"A relayout is finished."); +} + +bool WindowHost::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; + + const auto old_focus_control = focus_control_; + + focus_control_ = control; + + DispatchEvent(event_names::LoseFocus, old_focus_control, + &Control::LoseFocusEvent, nullptr, false); + + DispatchEvent(event_names::GainFocus, control, &Control::GainFocusEvent, + nullptr, false); + + return true; +} + +Control* WindowHost::GetFocusControl() { return focus_control_; } + +bool WindowHost::CaptureMouseFor(Control* control) { + const auto native_window = native_window_resolver_->Resolve(); + 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* WindowHost::GetMouseCaptureControl() { + return mouse_captured_control_; +} + +void WindowHost::RunAfterLayoutStable(std::function action) { + if (need_layout_) { + after_layout_stable_action_.push_back(std::move(action)); + } else { + action(); + } +} + +void WindowHost::OnNativeDestroy(INativeWindow* window, std::nullptr_t) { + CRU_UNUSED(window) + native_window_destroyed_ = true; + if (!deleting_ && !retain_after_destroy_) delete window_control_; +} + +void WindowHost::OnNativePaint(INativeWindow* window, std::nullptr_t) { + auto painter = window->BeginPaint(); + painter->Clear(colors::white); + root_render_object_->Draw(painter.get()); + painter->EndDraw(); +} + +void WindowHost::OnNativeResize(INativeWindow* window, const Size& size) { + CRU_UNUSED(window) + CRU_UNUSED(size) + + InvalidateLayout(); +} + +void WindowHost::OnNativeFocus(INativeWindow* window, + platform::native::FocusChangeType focus) { + CRU_UNUSED(window) + + focus == platform::native::FocusChangeType::Gain + ? DispatchEvent(event_names::GainFocus, focus_control_, + &Control::GainFocusEvent, nullptr, true) + : DispatchEvent(event_names::LoseFocus, focus_control_, + &Control::LoseFocusEvent, nullptr, true); +} + +void WindowHost::OnNativeMouseEnterLeave( + INativeWindow* window, platform::native::MouseEnterLeaveType type) { + CRU_UNUSED(window) + + if (type == platform::native::MouseEnterLeaveType::Leave) { + DispatchEvent(event_names::MouseLeave, mouse_hover_control_, + &Control::MouseLeaveEvent, nullptr); + mouse_hover_control_ = nullptr; + } +} + +void WindowHost::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 WindowHost::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 WindowHost::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 WindowHost::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 WindowHost::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 WindowHost::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 WindowHost::UpdateCursor() { + if (const auto native_window = native_window_resolver_->Resolve()) { + const auto capture = GetMouseCaptureControl(); + native_window->SetCursor( + (capture ? capture : GetMouseHoverControl())->GetInheritedCursor()); + } +} + +Control* WindowHost::HitTest(const Point& point) { + const auto render_object = root_render_object_->HitTest(point); + if (render_object) { + const auto control = render_object->GetAttachedControl(); + Ensures(control); + return control; + } + return window_control_; +} +} // namespace cru::ui diff --git a/src/ui/controls/TextControlService.hpp b/src/ui/controls/TextControlService.hpp index 8419f35c..8c1bd32f 100644 --- a/src/ui/controls/TextControlService.hpp +++ b/src/ui/controls/TextControlService.hpp @@ -12,7 +12,7 @@ #include "cru/ui/DebugFlags.hpp" #include "cru/ui/ShortcutHub.hpp" #include "cru/ui/UiEvent.hpp" -#include "cru/ui/UiHost.hpp" +#include "cru/ui/WindowHost.hpp" #include "cru/ui/render/CanvasRenderObject.hpp" #include "cru/ui/render/ScrollRenderObject.hpp" #include "cru/ui/render/TextRenderObject.hpp" @@ -208,7 +208,7 @@ class TextControlService : public Object { } void ScrollToCaret() { - this->control_->GetUiHost()->RunAfterLayoutStable([this]() { + this->control_->GetWindowHost()->RunAfterLayoutStable([this]() { const auto caret_rect = this->GetTextRenderObject()->GetCaretRect(); this->GetScrollRenderObject()->ScrollToContain(caret_rect, Thickness{5.f}); @@ -408,7 +408,7 @@ class TextControlService : public Object { void GainFocusHandler(event::FocusChangeEventArgs& args) { CRU_UNUSED(args); if (editable_) { - UiHost* ui_host = this->control_->GetUiHost(); + WindowHost* ui_host = this->control_->GetWindowHost(); auto window = ui_host->GetNativeWindowResolver()->Resolve(); if (window == nullptr) return; input_method_context_ = diff --git a/src/ui/render/RenderObject.cpp b/src/ui/render/RenderObject.cpp index c85f8080..5266daaf 100644 --- a/src/ui/render/RenderObject.cpp +++ b/src/ui/render/RenderObject.cpp @@ -3,7 +3,7 @@ #include "cru/common/Logger.hpp" #include "cru/platform/graph/util/Painter.hpp" #include "cru/ui/DebugFlags.hpp" -#include "cru/ui/UiHost.hpp" +#include "cru/ui/WindowHost.hpp" #include #include @@ -24,7 +24,7 @@ void RenderObject::AddChild(RenderObject* render_object, const Index position) { children_.insert(children_.cbegin() + position, render_object); render_object->SetParent(this); - render_object->SetRenderHostRecursive(GetUiHost()); + render_object->SetRenderHostRecursive(GetWindowHost()); OnAddChild(render_object, position); } @@ -304,7 +304,7 @@ void RenderObject::NotifyAfterLayoutRecursive(RenderObject* render_object) { } } -void RenderObject::SetRenderHostRecursive(UiHost* host) { +void RenderObject::SetRenderHostRecursive(WindowHost* host) { ui_host_ = host; for (const auto child : GetChildren()) { child->SetRenderHostRecursive(host); diff --git a/src/ui/render/WindowRenderObject.cpp b/src/ui/render/WindowRenderObject.cpp index a136c1e9..23cca12e 100644 --- a/src/ui/render/WindowRenderObject.cpp +++ b/src/ui/render/WindowRenderObject.cpp @@ -2,10 +2,10 @@ #include "../Helper.hpp" #include "cru/platform/graph/util/Painter.hpp" -#include "cru/ui/UiHost.hpp" +#include "cru/ui/WindowHost.hpp" namespace cru::ui::render { -WindowRenderObject::WindowRenderObject(UiHost* host) { +WindowRenderObject::WindowRenderObject(WindowHost* host) { SetChildMode(ChildMode::Single); ui_host_ = host; after_layout_event_guard_.Reset(host->AfterLayoutEvent()->AddHandler( -- cgit v1.2.3