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namespace Astal {
public class Button : Gtk.Button {
public signal void hover (HoverEvent event);
public signal void hover_lost (HoverEvent event);
public signal void click (ClickEvent event);
public signal void click_release (ClickEvent event);
public signal void scroll (ScrollEvent event);
construct {
add_events(Gdk.EventMask.SCROLL_MASK);
add_events(Gdk.EventMask.SMOOTH_SCROLL_MASK);
enter_notify_event.connect((self, event) => {
if (event.window == self.get_window() &&
event.detail != Gdk.NotifyType.INFERIOR) {
var hover_event = HoverEvent();
hover_event.lost = false;
hover_event.time = event.time;
hover_event.x = event.x;
hover_event.y = event.y;
hover_event.modifier = event.state;
hover_event.mode = event.mode;
hover_event.detail = event.detail;
hover(hover_event);
}
});
leave_notify_event.connect((self, event) => {
if (event.window == self.get_window() &&
event.detail != Gdk.NotifyType.INFERIOR) {
var hover_event = HoverEvent();
hover_event.lost = true;
hover_event.time = event.time;
hover_event.x = event.x;
hover_event.y = event.y;
hover_event.modifier = event.state;
hover_event.mode = event.mode;
hover_event.detail = event.detail;
hover_lost(hover_event);
}
});
button_press_event.connect((event) => {
var click_event = ClickEvent();
click_event.release = false;
click_event.time = event.time;
click_event.x = event.x;
click_event.y = event.y;
click_event.button = (MouseButton)event.button;
click_event.modifier = event.state;
click(click_event);
});
button_release_event.connect((event) => {
var click_event = ClickEvent();
click_event.release = true;
click_event.x = event.x;
click_event.y = event.y;
click_event.button = (MouseButton)event.button;
click_event.modifier = event.state;
click_release(click_event);
});
scroll_event.connect((event) => {
var scroll_event = ScrollEvent();
scroll_event.time = event.time;
scroll_event.x = event.x;
scroll_event.y = event.y;
scroll_event.modifier = event.state;
scroll_event.direction = event.direction;
scroll_event.delta_x = event.delta_x;
scroll_event.delta_y = event.delta_y;
scroll(scroll_event);
});
}
}
public enum MouseButton {
PRIMARY = 0,
MIDDLE,
SECONDARY,
BACK,
FORWARD,
}
// these structs are here because gjs converts every event
// into a union Gdk.Event, which cannot be destructured
// and are not as convinent to work with as a struct
public struct ClickEvent {
bool release;
uint time;
double x;
double y;
Gdk.ModifierType modifier;
MouseButton button;
}
public struct HoverEvent {
bool lost;
uint time;
double x;
double y;
Gdk.ModifierType modifier;
Gdk.CrossingMode mode;
Gdk.NotifyType detail;
}
public struct ScrollEvent {
uint time;
double x;
double y;
Gdk.ModifierType modifier;
Gdk.ScrollDirection direction;
double delta_x;
double delta_y;
}
}
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