Extract handler set from MouseRegion
This commit is contained in:
K Simmons
parent
8add81350e
commit
ec25fa9260
3 changed files with 332 additions and 253 deletions
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@ -252,7 +252,6 @@ impl Presenter {
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} else if let Some(handler) = region
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.handlers
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.get(&(MouseRegionEvent::down_out_disc(), Some(*button)))
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.cloned()
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{
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mouse_down_out_handlers.push((
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handler,
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@ -1,7 +1,8 @@
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use collections::HashMap;
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mod mouse_region;
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use serde::Deserialize;
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use serde_json::json;
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use std::{any::TypeId, borrow::Cow, mem::Discriminant, rc::Rc, sync::Arc};
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use std::{borrow::Cow, sync::Arc};
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use crate::{
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color::Color,
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@ -9,8 +10,9 @@ use crate::{
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geometry::{rect::RectF, vector::Vector2F},
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json::ToJson,
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platform::CursorStyle,
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EventContext, ImageData, MouseButton, MouseButtonEvent, MouseMovedEvent, ScrollWheelEvent,
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ImageData,
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};
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pub use mouse_region::*;
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pub struct Scene {
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scale_factor: f32,
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@ -45,255 +47,6 @@ pub struct CursorRegion {
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pub style: CursorStyle,
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}
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#[derive(Debug)]
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pub enum MouseRegionEvent {
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Move(MouseMovedEvent),
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Drag(Vector2F, MouseMovedEvent),
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Hover(bool, MouseMovedEvent),
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Down(MouseButtonEvent),
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Up(MouseButtonEvent),
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Click(MouseButtonEvent),
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DownOut(MouseButtonEvent),
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ScrollWheel(ScrollWheelEvent),
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}
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impl MouseRegionEvent {
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pub fn move_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::Move(Default::default()))
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}
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pub fn drag_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::Drag(
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Default::default(),
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Default::default(),
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))
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}
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pub fn hover_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::Hover(
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Default::default(),
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Default::default(),
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))
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}
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pub fn down_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::Down(Default::default()))
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}
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pub fn up_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::Up(Default::default()))
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}
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pub fn click_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::Click(Default::default()))
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}
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pub fn down_out_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::DownOut(Default::default()))
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}
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pub fn scroll_wheel_disc() -> Discriminant<MouseRegionEvent> {
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std::mem::discriminant(&MouseRegionEvent::ScrollWheel(Default::default()))
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}
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pub fn handler_key(&self) -> (Discriminant<MouseRegionEvent>, Option<MouseButton>) {
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match self {
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MouseRegionEvent::Move(_) => (Self::move_disc(), None),
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MouseRegionEvent::Drag(_, MouseMovedEvent { pressed_button, .. }) => {
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(Self::drag_disc(), *pressed_button)
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}
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MouseRegionEvent::Hover(_, _) => (Self::hover_disc(), None),
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MouseRegionEvent::Down(MouseButtonEvent { button, .. }) => {
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(Self::down_disc(), Some(*button))
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}
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MouseRegionEvent::Up(MouseButtonEvent { button, .. }) => {
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(Self::up_disc(), Some(*button))
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}
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MouseRegionEvent::Click(MouseButtonEvent { button, .. }) => {
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(Self::click_disc(), Some(*button))
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}
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MouseRegionEvent::DownOut(MouseButtonEvent { button, .. }) => {
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(Self::down_out_disc(), Some(*button))
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}
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MouseRegionEvent::ScrollWheel(_) => (Self::scroll_wheel_disc(), None),
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}
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}
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}
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#[derive(Clone, Default)]
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pub struct MouseRegion {
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pub view_id: usize,
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pub discriminant: Option<(TypeId, usize)>,
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pub bounds: RectF,
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pub handlers: HashMap<
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(Discriminant<MouseRegionEvent>, Option<MouseButton>),
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Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>,
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>,
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}
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impl MouseRegion {
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pub fn new(view_id: usize, discriminant: Option<(TypeId, usize)>, bounds: RectF) -> Self {
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Self {
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view_id,
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discriminant,
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bounds,
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handlers: Default::default(),
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}
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}
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pub fn handle_all(
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view_id: usize,
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discriminant: Option<(TypeId, usize)>,
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bounds: RectF,
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) -> Self {
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let mut handlers: HashMap<
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(Discriminant<MouseRegionEvent>, Option<MouseButton>),
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Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>,
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> = Default::default();
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handlers.insert((MouseRegionEvent::move_disc(), None), Rc::new(|_, _| {}));
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handlers.insert((MouseRegionEvent::hover_disc(), None), Rc::new(|_, _| {}));
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for button in MouseButton::all() {
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handlers.insert(
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(MouseRegionEvent::drag_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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handlers.insert(
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(MouseRegionEvent::down_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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handlers.insert(
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(MouseRegionEvent::up_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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handlers.insert(
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(MouseRegionEvent::click_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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handlers.insert(
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(MouseRegionEvent::down_out_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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}
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handlers.insert(
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(MouseRegionEvent::scroll_wheel_disc(), None),
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Rc::new(|_, _| {}),
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);
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Self {
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view_id,
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discriminant,
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bounds,
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handlers,
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}
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}
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pub fn on_down(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers.insert((MouseRegionEvent::down_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Down(mouse_button_event) = region_event {
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handler(mouse_button_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Down, found {:?}",
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region_event);
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}
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}));
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self
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}
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pub fn on_up(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers.insert((MouseRegionEvent::up_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Up(mouse_button_event) = region_event {
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handler(mouse_button_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Up, found {:?}",
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region_event);
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}
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}));
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self
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}
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pub fn on_click(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers.insert((MouseRegionEvent::click_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Click(mouse_button_event) = region_event {
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handler(mouse_button_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Click, found {:?}",
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region_event);
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}
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}));
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self
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}
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pub fn on_down_out(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers.insert((MouseRegionEvent::down_out_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::DownOut(mouse_button_event) = region_event {
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handler(mouse_button_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::DownOut, found {:?}",
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region_event);
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}
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}));
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self
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}
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pub fn on_drag(
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mut self,
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button: MouseButton,
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handler: impl Fn(Vector2F, MouseMovedEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers.insert((MouseRegionEvent::drag_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Drag(prev_drag_position, mouse_moved_event) = region_event {
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handler(prev_drag_position, mouse_moved_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Drag, found {:?}",
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region_event);
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}
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}));
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self
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}
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pub fn on_hover(
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mut self,
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handler: impl Fn(bool, MouseMovedEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers.insert((MouseRegionEvent::hover_disc(), None),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Hover(hover, mouse_moved_event) = region_event {
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handler(hover, mouse_moved_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Hover, found {:?}",
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region_event);
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}
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}));
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self
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}
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}
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#[derive(Copy, Clone, Eq, PartialEq, Hash)]
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pub struct MouseRegionId {
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pub view_id: usize,
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pub discriminant: (TypeId, usize),
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}
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#[derive(Default, Debug)]
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pub struct Quad {
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pub bounds: RectF,
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327
crates/gpui/src/scene/mouse_region.rs
Normal file
327
crates/gpui/src/scene/mouse_region.rs
Normal file
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@ -0,0 +1,327 @@
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use std::{any::TypeId, mem::Discriminant, rc::Rc};
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use collections::HashMap;
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use pathfinder_geometry::{rect::RectF, vector::Vector2F};
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use crate::{EventContext, MouseButton, MouseButtonEvent, MouseMovedEvent, ScrollWheelEvent};
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#[derive(Clone, Default)]
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pub struct MouseRegion {
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pub view_id: usize,
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pub discriminant: Option<(TypeId, usize)>,
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pub bounds: RectF,
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pub handlers: HandlerSet,
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}
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impl MouseRegion {
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pub fn new(view_id: usize, discriminant: Option<(TypeId, usize)>, bounds: RectF) -> Self {
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Self {
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view_id,
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discriminant,
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bounds,
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handlers: Default::default(),
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}
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}
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pub fn handle_all(
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view_id: usize,
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discriminant: Option<(TypeId, usize)>,
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bounds: RectF,
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) -> Self {
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Self {
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view_id,
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discriminant,
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bounds,
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handlers: HandlerSet::handle_all(),
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}
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}
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pub fn on_down(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers = self.handlers.on_down(button, handler);
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self
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}
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pub fn on_up(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers = self.handlers.on_up(button, handler);
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self
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}
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pub fn on_click(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers = self.handlers.on_click(button, handler);
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self
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}
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pub fn on_down_out(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers = self.handlers.on_down_out(button, handler);
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self
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}
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pub fn on_drag(
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mut self,
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button: MouseButton,
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handler: impl Fn(Vector2F, MouseMovedEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers = self.handlers.on_drag(button, handler);
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self
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}
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pub fn on_hover(
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mut self,
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handler: impl Fn(bool, MouseMovedEvent, &mut EventContext) + 'static,
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) -> Self {
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self.handlers = self.handlers.on_hover(handler);
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self
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}
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}
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#[derive(Copy, Clone, Eq, PartialEq, Hash)]
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pub struct MouseRegionId {
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pub view_id: usize,
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pub discriminant: (TypeId, usize),
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}
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#[derive(Clone, Default)]
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pub struct HandlerSet {
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pub set: HashMap<
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(Discriminant<MouseRegionEvent>, Option<MouseButton>),
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Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>,
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>,
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}
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impl HandlerSet {
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pub fn handle_all() -> Self {
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let mut set: HashMap<
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(Discriminant<MouseRegionEvent>, Option<MouseButton>),
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Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>,
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> = Default::default();
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set.insert((MouseRegionEvent::move_disc(), None), Rc::new(|_, _| {}));
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set.insert((MouseRegionEvent::hover_disc(), None), Rc::new(|_, _| {}));
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for button in MouseButton::all() {
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set.insert(
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(MouseRegionEvent::drag_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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set.insert(
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(MouseRegionEvent::down_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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set.insert(
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(MouseRegionEvent::up_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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set.insert(
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(MouseRegionEvent::click_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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set.insert(
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(MouseRegionEvent::down_out_disc(), Some(button)),
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Rc::new(|_, _| {}),
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);
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}
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set.insert(
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(MouseRegionEvent::scroll_wheel_disc(), None),
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Rc::new(|_, _| {}),
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);
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HandlerSet { set }
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}
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pub fn get(
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&self,
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key: &(Discriminant<MouseRegionEvent>, Option<MouseButton>),
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) -> Option<Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>> {
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self.set.get(key).cloned()
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}
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pub fn on_down(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.set.insert((MouseRegionEvent::down_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Down(mouse_button_event) = region_event {
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handler(mouse_button_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Down, found {:?}",
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region_event);
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}
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}));
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self
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}
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pub fn on_up(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.set.insert((MouseRegionEvent::up_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Up(mouse_button_event) = region_event {
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handler(mouse_button_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Up, found {:?}",
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region_event);
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}
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}));
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self
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}
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pub fn on_click(
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mut self,
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button: MouseButton,
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handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
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) -> Self {
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self.set.insert((MouseRegionEvent::click_disc(), Some(button)),
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Rc::new(move |region_event, cx| {
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if let MouseRegionEvent::Click(mouse_button_event) = region_event {
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handler(mouse_button_event, cx);
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} else {
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panic!(
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"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Click, found {:?}",
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region_event);
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}
|
||||
}));
|
||||
self
|
||||
}
|
||||
|
||||
pub fn on_down_out(
|
||||
mut self,
|
||||
button: MouseButton,
|
||||
handler: impl Fn(MouseButtonEvent, &mut EventContext) + 'static,
|
||||
) -> Self {
|
||||
self.set.insert((MouseRegionEvent::down_out_disc(), Some(button)),
|
||||
Rc::new(move |region_event, cx| {
|
||||
if let MouseRegionEvent::DownOut(mouse_button_event) = region_event {
|
||||
handler(mouse_button_event, cx);
|
||||
} else {
|
||||
panic!(
|
||||
"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::DownOut, found {:?}",
|
||||
region_event);
|
||||
}
|
||||
}));
|
||||
self
|
||||
}
|
||||
|
||||
pub fn on_drag(
|
||||
mut self,
|
||||
button: MouseButton,
|
||||
handler: impl Fn(Vector2F, MouseMovedEvent, &mut EventContext) + 'static,
|
||||
) -> Self {
|
||||
self.set.insert((MouseRegionEvent::drag_disc(), Some(button)),
|
||||
Rc::new(move |region_event, cx| {
|
||||
if let MouseRegionEvent::Drag(prev_drag_position, mouse_moved_event) = region_event {
|
||||
handler(prev_drag_position, mouse_moved_event, cx);
|
||||
} else {
|
||||
panic!(
|
||||
"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Drag, found {:?}",
|
||||
region_event);
|
||||
}
|
||||
}));
|
||||
self
|
||||
}
|
||||
|
||||
pub fn on_hover(
|
||||
mut self,
|
||||
handler: impl Fn(bool, MouseMovedEvent, &mut EventContext) + 'static,
|
||||
) -> Self {
|
||||
self.set.insert((MouseRegionEvent::hover_disc(), None),
|
||||
Rc::new(move |region_event, cx| {
|
||||
if let MouseRegionEvent::Hover(hover, mouse_moved_event) = region_event {
|
||||
handler(hover, mouse_moved_event, cx);
|
||||
} else {
|
||||
panic!(
|
||||
"Mouse Region Event incorrectly called with mismatched event type. Expected MouseRegionEvent::Hover, found {:?}",
|
||||
region_event);
|
||||
}
|
||||
}));
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum MouseRegionEvent {
|
||||
Move(MouseMovedEvent),
|
||||
Drag(Vector2F, MouseMovedEvent),
|
||||
Hover(bool, MouseMovedEvent),
|
||||
Down(MouseButtonEvent),
|
||||
Up(MouseButtonEvent),
|
||||
Click(MouseButtonEvent),
|
||||
DownOut(MouseButtonEvent),
|
||||
ScrollWheel(ScrollWheelEvent),
|
||||
}
|
||||
|
||||
impl MouseRegionEvent {
|
||||
pub fn move_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::Move(Default::default()))
|
||||
}
|
||||
pub fn drag_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::Drag(
|
||||
Default::default(),
|
||||
Default::default(),
|
||||
))
|
||||
}
|
||||
pub fn hover_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::Hover(
|
||||
Default::default(),
|
||||
Default::default(),
|
||||
))
|
||||
}
|
||||
pub fn down_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::Down(Default::default()))
|
||||
}
|
||||
pub fn up_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::Up(Default::default()))
|
||||
}
|
||||
pub fn click_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::Click(Default::default()))
|
||||
}
|
||||
pub fn down_out_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::DownOut(Default::default()))
|
||||
}
|
||||
pub fn scroll_wheel_disc() -> Discriminant<MouseRegionEvent> {
|
||||
std::mem::discriminant(&MouseRegionEvent::ScrollWheel(Default::default()))
|
||||
}
|
||||
|
||||
pub fn handler_key(&self) -> (Discriminant<MouseRegionEvent>, Option<MouseButton>) {
|
||||
match self {
|
||||
MouseRegionEvent::Move(_) => (Self::move_disc(), None),
|
||||
MouseRegionEvent::Drag(_, MouseMovedEvent { pressed_button, .. }) => {
|
||||
(Self::drag_disc(), *pressed_button)
|
||||
}
|
||||
MouseRegionEvent::Hover(_, _) => (Self::hover_disc(), None),
|
||||
MouseRegionEvent::Down(MouseButtonEvent { button, .. }) => {
|
||||
(Self::down_disc(), Some(*button))
|
||||
}
|
||||
MouseRegionEvent::Up(MouseButtonEvent { button, .. }) => {
|
||||
(Self::up_disc(), Some(*button))
|
||||
}
|
||||
MouseRegionEvent::Click(MouseButtonEvent { button, .. }) => {
|
||||
(Self::click_disc(), Some(*button))
|
||||
}
|
||||
MouseRegionEvent::DownOut(MouseButtonEvent { button, .. }) => {
|
||||
(Self::down_out_disc(), Some(*button))
|
||||
}
|
||||
MouseRegionEvent::ScrollWheel(_) => (Self::scroll_wheel_disc(), None),
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue