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#pragma once
#include "../Base.h"
#include "cru/common/Event.h"
namespace cru::ui::helper {
class ClickDetector;
class CRU_UI_API ClickEventArgs : Object {
public:
ClickEventArgs(controls::Control* sender, const Point& down_point,
const Point& up_point, MouseButton button)
: sender_(sender),
down_point_(down_point),
up_point_(up_point),
button_(button) {}
CRU_DEFAULT_COPY(ClickEventArgs)
CRU_DEFAULT_MOVE(ClickEventArgs)
~ClickEventArgs() override = default;
controls::Control* GetSender() const { return sender_; }
Point GetDownPoint() const { return down_point_; }
Point GetDownPointOfScreen() const;
Point GetUpPoint() const { return up_point_; }
MouseButton GetButton() const { return button_; }
private:
controls::Control* sender_;
Point down_point_;
Point up_point_;
MouseButton button_;
};
enum class ClickState {
None, // Mouse is outside the control.
Hover, // Mouse hovers on the control but not pressed
Press, // Mouse is pressed and if released click is done.
PressInactive // Mouse is pressed but if released click is canceled.
};
class ClickDetector : public Object {
CRU_DEFINE_CLASS_LOG_TAG(u"ClickDetector")
public:
explicit ClickDetector(controls::Control* control);
CRU_DELETE_COPY(ClickDetector)
CRU_DELETE_MOVE(ClickDetector)
~ClickDetector() override = default;
controls::Control* GetControl() const { return control_; }
ClickState GetState() const { return state_; }
// Default is enable.
bool IsEnabled() const { return enable_; }
// If disable when user is pressing, the pressing is deactivated.
void SetEnabled(bool enable);
// Default is left and right.
MouseButton GetTriggerButton() const { return trigger_button_; }
// If unset the trigger button when user is pressing, the pressing is
// deactivated.
void SetTriggerButton(MouseButton trigger_button);
IEvent<ClickEventArgs>* ClickEvent() { return &event_; }
IEvent<ClickState>* StateChangeEvent() { return &state_change_event_; }
private:
void SetState(ClickState state);
private:
controls::Control* control_;
ClickState state_ = ClickState::None;
bool enable_ = true;
MouseButton trigger_button_ = mouse_buttons::left | mouse_buttons::right;
Event<ClickEventArgs> event_;
Event<ClickState> state_change_event_;
std::vector<EventRevokerGuard> event_rovoker_guards_;
Point down_point_;
MouseButton button_;
};
} // namespace cru::ui::helper
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