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#include "cru/ui/controls/Control.h"
#include "cru/base/log/Logger.h"
#include "cru/ui/controls/Window.h"
#include "cru/platform/gui/Cursor.h"
#include "cru/platform/gui/UiApplication.h"
#include "cru/ui/style/StyleRuleSet.h"
#include <format>
namespace cru::ui::controls {
using platform::gui::ICursor;
using platform::gui::IUiApplication;
using platform::gui::SystemCursorType;
Control::Control() {
style_rule_set_ = std::make_shared<style::StyleRuleSet>();
style_rule_set_bind_ =
std::make_unique<style::StyleRuleSetBind>(this, style_rule_set_);
MouseEnterEvent()->Direct()->AddHandler(
[this](events::MouseEventArgs&) { this->is_mouse_over_ = true; });
MouseLeaveEvent()->Direct()->AddHandler(
[this](events::MouseEventArgs&) { this->is_mouse_over_ = false; });
}
Control::~Control() {
if (auto window = GetWindow()) {
if (window->IsInEventHandling()) {
CRU_LOG_TAG_WARN(
"Better use delete later to delete control during event handling.");
}
}
if (auto window = GetWindow()) {
window->NotifyControlDestroyed(this);
}
RemoveFromParent();
}
std::string Control::GetDebugId() const {
return std::format("{}({})", GetControlType(),
static_cast<const void*>(this));
}
Window* Control::GetWindow() {
auto parent = this;
while (parent) {
if (auto window = dynamic_cast<Window*>(parent)) {
return window;
}
parent = parent->GetParent();
}
return nullptr;
}
void Control::SetParent(Control* parent) {
if (parent_ == parent) return;
auto old_parent = parent_;
parent_ = parent;
OnParentChanged(old_parent, parent);
}
bool Control::HasAncestor(Control* control) {
auto parent = this;
while (parent) {
if (parent == control) return true;
parent = parent->GetParent();
}
return false;
}
void Control::RemoveFromParent() {
if (parent_) {
parent_->RemoveChild(this);
}
}
controls::Control* Control::HitTest(const Point& point) {
const auto render_object = GetRenderObject()->HitTest(point);
if (render_object) {
const auto control = render_object->GetAttachedControl();
assert(control);
return control;
}
return nullptr;
}
bool Control::HasFocus() {
auto window = GetWindow();
if (window == nullptr) return false;
return window->GetFocusControl() == this;
}
bool Control::CaptureMouse() {
auto window = GetWindow();
if (window == nullptr) return false;
return window->SetMouseCaptureControl(this);
}
void Control::SetFocus() {
auto window = GetWindow();
if (window == nullptr) return;
window->SetFocusControl(this);
}
bool Control::ReleaseMouse() {
auto window = GetWindow();
if (window == nullptr) return false;
if (window->GetMouseCaptureControl() != this) return false;
return window->SetMouseCaptureControl(nullptr);
}
bool Control::IsMouseCaptured() {
auto window = GetWindow();
if (window == nullptr) return false;
return window->GetMouseCaptureControl() == this;
}
std::shared_ptr<ICursor> Control::GetCursor() { return cursor_; }
std::shared_ptr<ICursor> Control::GetInheritedCursor() {
Control* control = this;
while (control != nullptr) {
const auto cursor = control->GetCursor();
if (cursor != nullptr) return cursor;
control = control->GetParent();
}
return IUiApplication::GetInstance()->GetCursorManager()->GetSystemCursor(
SystemCursorType::Arrow);
}
void Control::SetCursor(std::shared_ptr<ICursor> cursor) {
cursor_ = std::move(cursor);
const auto window = GetWindow();
if (window != nullptr) {
window->UpdateCursor();
}
}
std::shared_ptr<style::StyleRuleSet> Control::GetStyleRuleSet() {
return style_rule_set_;
}
} // namespace cru::ui::controls
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