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listener handles, auto-clean destroyed listeners, minor refactor

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This commit is contained in:
Aleksander
2025-07-06 20:53:40 +02:00
parent 92444bb5c4
commit 857c5ec865
16 changed files with 348 additions and 182 deletions
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77
wgui/src/components/button.rs
View File

@@ -5,7 +5,7 @@ use crate::{
animation::{Animation, AnimationEasing},
components::Component,
drawing::{self, Color},
event::{CallbackDataCommon, EventListenerCollection, EventListenerKind},
event::{CallbackDataCommon, EventListenerCollection, EventListenerKind, ListenerHandleVec},
layout::{Layout, WidgetID},
renderer_vk::text::{FontWeight, TextStyle},
widget::{
@@ -37,59 +37,64 @@ impl Default for Params<'_> {
}
}
pub struct Button {
struct Data {
initial_color: drawing::Color,
initial_border_color: drawing::Color,
pub body: WidgetID, // Rectangle
pub text_id: WidgetID, // Text
text_id: WidgetID, // Text
text_node: taffy::NodeId,
}
pub struct Button {
data: Rc<Data>,
#[allow(dead_code)]
listener_handles: ListenerHandleVec,
}
impl Component for Button {}
impl Button {
pub fn set_text<'a, 'b, C>(&self, callback_data: &mut CallbackDataCommon, text: &str) {
callback_data.call_on_widget(self.text_id, |label: &mut TextLabel| {
pub fn set_text<C>(&self, callback_data: &mut CallbackDataCommon, text: &str) {
callback_data.call_on_widget(self.data.text_id, |label: &mut TextLabel| {
label.set_text(text);
});
callback_data.mark_redraw();
callback_data.mark_dirty(self.text_node);
callback_data.mark_dirty(self.data.text_node);
}
}
fn anim_hover(rect: &mut Rectangle, button: &Button, pos: f32) {
fn anim_hover(rect: &mut Rectangle, data: &Data, pos: f32) {
let brightness = pos * 0.5;
let border_brightness = pos;
rect.params.color.r = button.initial_color.r + brightness;
rect.params.color.g = button.initial_color.g + brightness;
rect.params.color.b = button.initial_color.b + brightness;
rect.params.border_color.r = button.initial_border_color.r + border_brightness;
rect.params.border_color.g = button.initial_border_color.g + border_brightness;
rect.params.border_color.b = button.initial_border_color.b + border_brightness;
rect.params.color.r = data.initial_color.r + brightness;
rect.params.color.g = data.initial_color.g + brightness;
rect.params.color.b = data.initial_color.b + brightness;
rect.params.border_color.r = data.initial_border_color.r + border_brightness;
rect.params.border_color.g = data.initial_border_color.g + border_brightness;
rect.params.border_color.b = data.initial_border_color.b + border_brightness;
rect.params.border = 3.0;
}
fn anim_hover_in(button: Rc<Button>, widget_id: WidgetID) -> Animation {
fn anim_hover_in(data: Rc<Data>, widget_id: WidgetID) -> Animation {
Animation::new(
widget_id,
10,
AnimationEasing::OutQuad,
Box::new(move |common, data| {
let rect = data.obj.get_as_mut::<Rectangle>();
anim_hover(rect, &button, data.pos);
Box::new(move |common, anim_data| {
let rect = anim_data.obj.get_as_mut::<Rectangle>();
anim_hover(rect, &data, anim_data.pos);
common.mark_redraw();
}),
)
}
fn anim_hover_out(button: Rc<Button>, widget_id: WidgetID) -> Animation {
fn anim_hover_out(data: Rc<Data>, widget_id: WidgetID) -> Animation {
Animation::new(
widget_id,
15,
AnimationEasing::OutQuad,
Box::new(move |common, data| {
let rect = data.obj.get_as_mut::<Rectangle>();
anim_hover(rect, &button, 1.0 - data.pos);
Box::new(move |common, anim_data| {
let rect = anim_data.obj.get_as_mut::<Rectangle>();
anim_hover(rect, &data, 1.0 - anim_data.pos);
common.mark_redraw();
}),
)
@@ -144,33 +149,37 @@ pub fn construct<U1, U2>(
},
)?;
let _button = Rc::new(Button {
body: rect_id,
let _data = Rc::new(Data {
text_id,
text_node,
initial_color: params.color,
initial_border_color: params.border_color,
});
//let mut widget = layout.widget_map.get(rect_id).unwrap().lock().unwrap();
let mut listener_handles = ListenerHandleVec::default();
let button = _button.clone();
listeners.add(
let data = _data.clone();
listeners.register(
&mut listener_handles,
rect_id,
EventListenerKind::MouseEnter,
Box::new(move |common, data, _, _| {
common.animate(anim_hover_in(button.clone(), data.widget_id));
Box::new(move |common, event_data, _, _| {
common.animate(anim_hover_in(data.clone(), event_data.widget_id));
}),
);
let button = _button.clone();
listeners.add(
let data = _data.clone();
listeners.register(
&mut listener_handles,
rect_id,
EventListenerKind::MouseLeave,
Box::new(move |common, data, _, _| {
common.animate(anim_hover_out(button.clone(), data.widget_id));
Box::new(move |common, event_data, _, _| {
common.animate(anim_hover_out(data.clone(), event_data.widget_id));
}),
);
Ok(_button)
Ok(Rc::new(Button {
data: _data.clone(),
listener_handles,
}))
}

174
wgui/src/components/slider.rs
View File

@@ -10,7 +10,9 @@ use crate::{
animation::{Animation, AnimationEasing},
components::Component,
drawing::{self},
event::{self, CallbackDataCommon, EventListenerCollection, EventListenerKind},
event::{
self, CallbackDataCommon, EventListenerCollection, EventListenerKind, ListenerHandleVec,
},
layout::{Layout, WidgetID},
renderer_vk::util,
widget::{
@@ -46,29 +48,39 @@ pub struct SliderState {
max_value: f32,
}
pub struct Slider {
struct Data {
body: WidgetID, // Div
slider_handle_id: WidgetID, // Div
slider_handle_rect_id: WidgetID, // Rectangle
slider_handle_node: taffy::NodeId,
}
pub struct Slider {
data: Rc<Data>,
state: Rc<RefCell<SliderState>>,
listener_handles: ListenerHandleVec,
}
impl Component for Slider {}
impl Slider {
fn get_state(&self) -> RefMut<'_, SliderState> {
self.state.borrow_mut()
}
pub fn set_value(&self, state: &mut SliderState, common: &mut CallbackDataCommon, value: f32) {
state.value = value;
common.mark_dirty(self.slider_handle_node);
common.call_on_widget(self.slider_handle_id, |div: &mut Div| {});
impl SliderState {
fn set_value(&mut self, data: &Data, common: &mut CallbackDataCommon, value: f32) {
self.value = value;
common.mark_dirty(data.slider_handle_node);
common.call_on_widget(data.slider_handle_id, |div: &mut Div| {});
common.mark_redraw();
common.mark_dirty(self.slider_handle_node);
let mut style = common
.refs
.tree
.style(data.slider_handle_node)
.unwrap()
.clone();
// todo
style.margin.left = percent(1.0);
common.set_style(data.slider_handle_node, style);
}
}
@@ -123,78 +135,97 @@ fn on_leave_anim(common: &mut event::CallbackDataCommon, handle_id: WidgetID) {
const PAD_PERCENT: f32 = 0.75;
const HANDLE_WIDTH: f32 = 32.0;
const HANDLE_HEIGHT: f32 = 24.0;
fn register_event_mouse_enter<U1, U2>(
slider: Rc<Slider>,
data: Rc<Data>,
state: Rc<RefCell<SliderState>>,
listeners: &mut EventListenerCollection<U1, U2>,
listener_handles: &mut ListenerHandleVec,
) {
listeners.add(
slider.body,
listeners.register(
listener_handles,
data.body,
EventListenerKind::MouseEnter,
Box::new(move |common, _data, _, _| {
common.trigger_haptics();
slider.get_state().hovered = true;
on_enter_anim(common, slider.slider_handle_rect_id);
state.borrow_mut().hovered = true;
on_enter_anim(common, data.slider_handle_rect_id);
}),
);
}
fn register_event_mouse_leave<U1, U2>(
slider: Rc<Slider>,
data: Rc<Data>,
state: Rc<RefCell<SliderState>>,
listeners: &mut EventListenerCollection<U1, U2>,
listener_handles: &mut ListenerHandleVec,
) {
listeners.add(
slider.body,
listeners.register(
listener_handles,
data.body,
EventListenerKind::MouseLeave,
Box::new(move |common, _data, _, _| {
common.trigger_haptics();
slider.get_state().hovered = false;
on_leave_anim(common, slider.slider_handle_rect_id);
state.borrow_mut().hovered = false;
on_leave_anim(common, data.slider_handle_rect_id);
}),
);
}
fn register_event_mouse_motion<U1, U2>(
slider: Rc<Slider>,
data: Rc<Data>,
_state: Rc<RefCell<SliderState>>,
listeners: &mut EventListenerCollection<U1, U2>,
listener_handles: &mut ListenerHandleVec,
) {
listeners.add(
slider.body,
listeners.register(
listener_handles,
data.body,
EventListenerKind::MouseMotion,
Box::new(move |_common, _data, _, _| {}),
);
}
fn register_event_mouse_press<U1, U2>(
slider: Rc<Slider>,
data: Rc<Data>,
state: Rc<RefCell<SliderState>>,
listeners: &mut EventListenerCollection<U1, U2>,
listener_handles: &mut ListenerHandleVec,
) {
listeners.add(
slider.body,
listeners.register(
listener_handles,
data.body,
EventListenerKind::MousePress,
Box::new(move |common, _data, _, _| {
common.trigger_haptics();
let mut state = slider.get_state();
let mut state = state.borrow_mut();
if state.hovered {
state.dragging = true;
let val = state.min_value;
slider.set_value(&mut state, common, val);
let val = 1.0;
state.set_value(&data, common, val);
}
}),
);
}
fn register_event_mouse_release<U1, U2>(
slider: Rc<Slider>,
data: Rc<Data>,
state: Rc<RefCell<SliderState>>,
listeners: &mut EventListenerCollection<U1, U2>,
listener_handles: &mut ListenerHandleVec,
) {
listeners.add(
slider.body,
listeners.register(
listener_handles,
data.body,
EventListenerKind::MouseRelease,
Box::new(move |common, _data, _, _| {
common.trigger_haptics();
let mut state = slider.get_state();
let mut state = state.borrow_mut();
if state.dragging {
state.dragging = false;
}
@@ -212,8 +243,6 @@ pub fn construct<U1, U2>(
style.position = taffy::Position::Relative;
style.min_size = style.size;
style.max_size = style.size;
style.align_items = Some(taffy::AlignItems::Center);
style.justify_content = Some(taffy::JustifyContent::Center);
let (body_id, _) = layout.add_child(parent, Div::create()?, style)?;
@@ -232,20 +261,27 @@ pub fn construct<U1, U2>(
height: percent(PAD_PERCENT),
},
position: taffy::Position::Absolute,
align_self: Some(taffy::AlignItems::Center),
justify_self: Some(taffy::JustifySelf::Center),
..Default::default()
},
)?;
let mut handle_style = taffy::Style::default();
handle_style.size.width = length(32.0);
handle_style.size.height = percent(1.0);
handle_style.position = taffy::Position::Absolute;
handle_style.align_items = Some(taffy::AlignItems::Center);
handle_style.justify_content = Some(taffy::JustifyContent::Center);
// invisible outer handle body
let (slider_handle_id, slider_handle_node) =
layout.add_child(body_id, Div::create()?, handle_style)?;
let (slider_handle_id, slider_handle_node) = layout.add_child(
body_id,
Div::create()?,
taffy::Style {
size: taffy::Size {
width: length(0.0),
height: percent(1.0),
},
position: taffy::Position::Absolute,
align_items: Some(taffy::AlignItems::Center),
justify_content: Some(taffy::JustifyContent::Center),
..Default::default()
},
)?;
let (slider_handle_rect_id, _) = layout.add_child(
slider_handle_id,
@@ -257,34 +293,44 @@ pub fn construct<U1, U2>(
..Default::default()
})?,
taffy::Style {
position: taffy::Position::Absolute,
size: taffy::Size {
width: percent(PAD_PERCENT),
height: percent(PAD_PERCENT),
width: length(HANDLE_WIDTH),
height: length(HANDLE_HEIGHT),
},
..Default::default()
},
)?;
let slider = Rc::new(Slider {
let data = Rc::new(Data {
body: body_id,
slider_handle_node,
slider_handle_rect_id,
slider_handle_id,
state: Rc::new(RefCell::new(SliderState {
dragging: false,
hovered: false,
max_value: params.max_value,
value: params.initial_value,
min_value: params.min_value,
})),
});
register_event_mouse_enter(slider.clone(), listeners);
register_event_mouse_leave(slider.clone(), listeners);
register_event_mouse_motion(slider.clone(), listeners);
register_event_mouse_press(slider.clone(), listeners);
register_event_mouse_leave(slider.clone(), listeners);
register_event_mouse_release(slider.clone(), listeners);
let state = Rc::new(RefCell::new(SliderState {
dragging: false,
hovered: false,
max_value: params.max_value,
value: params.initial_value,
min_value: params.min_value,
}));
let mut lhandles = ListenerHandleVec::default();
register_event_mouse_enter(data.clone(), state.clone(), listeners, &mut lhandles);
register_event_mouse_leave(data.clone(), state.clone(), listeners, &mut lhandles);
register_event_mouse_motion(data.clone(), state.clone(), listeners, &mut lhandles);
register_event_mouse_press(data.clone(), state.clone(), listeners, &mut lhandles);
register_event_mouse_leave(data.clone(), state.clone(), listeners, &mut lhandles);
register_event_mouse_release(data.clone(), state.clone(), listeners, &mut lhandles);
let slider = Rc::new(Slider {
data,
state,
listener_handles: lhandles,
});
Ok(slider)
}

101
wgui/src/event.rs
View File

@@ -1,3 +1,5 @@
use std::{cell::RefCell, rc::Rc};
use glam::Vec2;
use slotmap::SecondaryMap;
@@ -164,9 +166,30 @@ pub enum EventListenerKind {
pub type EventCallback<U1, U2> =
Box<dyn Fn(&mut CallbackDataCommon, &mut CallbackData, &mut U1, &mut U2)>;
//for ref-counting
pub struct ListenerHandle {
needs_gc: Rc<RefCell<bool>>, // this will be set to true on destructor
}
#[derive(Default)]
pub struct ListenerHandleVec(Vec<Rc<ListenerHandle>>);
impl ListenerHandleVec {
pub fn push(&mut self, handle: Rc<ListenerHandle>) {
self.0.push(handle);
}
}
impl Drop for ListenerHandle {
fn drop(&mut self) {
*self.needs_gc.borrow_mut() = true;
}
}
pub struct EventListener<U1, U2> {
pub kind: EventListenerKind,
pub callback: EventCallback<U1, U2>,
pub handle: std::rc::Weak<ListenerHandle>,
}
impl<U1, U2> EventListener<U1, U2> {
@@ -182,8 +205,17 @@ impl<U1, U2> EventListener<U1, U2> {
}
}
pub struct EventListenerVec<U1, U2>(Vec<EventListener<U1, U2>>);
impl<U1, U2> EventListenerVec<U1, U2> {
pub fn iter(&self) -> impl Iterator<Item = &EventListener<U1, U2>> {
self.0.iter().filter(|p| p.handle.strong_count() > 0)
}
}
pub struct EventListenerCollection<U1, U2> {
map: SecondaryMap<WidgetID, Vec<EventListener<U1, U2>>>,
map: SecondaryMap<WidgetID, EventListenerVec<U1, U2>>,
needs_gc: Rc<RefCell<bool>>,
}
// derive only works if generics also implement Default
@@ -191,26 +223,75 @@ impl<U1, U2> Default for EventListenerCollection<U1, U2> {
fn default() -> Self {
Self {
map: SecondaryMap::default(),
needs_gc: Rc::new(RefCell::new(false)),
}
}
}
impl<U1, U2> EventListenerCollection<U1, U2> {
pub fn add(
pub fn register(
&mut self,
listener_handles: &mut ListenerHandleVec,
widget_id: WidgetID,
kind: EventListenerKind,
callback: EventCallback<U1, U2>,
) {
let new_item = EventListener { kind, callback };
if let Some(vec) = self.map.get_mut(widget_id) {
vec.push(new_item);
} else {
self.map.insert(widget_id, vec![new_item]);
}
let res = self.add_single(widget_id, kind, callback);
listener_handles.push(res);
}
pub fn get(&self, widget_id: WidgetID) -> Option<&[EventListener<U1, U2>]> {
self.map.get(widget_id).map(|v| v.as_slice())
pub fn add_single(
&mut self,
widget_id: WidgetID,
kind: EventListenerKind,
callback: EventCallback<U1, U2>,
) -> Rc<ListenerHandle> {
let handle = Rc::new(ListenerHandle {
needs_gc: self.needs_gc.clone(),
});
let new_item = EventListener {
kind,
callback,
handle: Rc::downgrade(&handle),
};
if let Some(vec) = self.map.get_mut(widget_id) {
vec.0.push(new_item);
} else {
self.map.insert(widget_id, EventListenerVec(vec![new_item]));
}
handle
}
// clean-up expired events
pub fn gc(&mut self) {
let mut needs_gc = self.needs_gc.borrow_mut();
if !*needs_gc {
return;
}
*needs_gc = false;
let mut count = 0;
for (_id, vec) in self.map.iter_mut() {
vec.0.retain(|listener| {
if listener.handle.strong_count() != 0 {
true
} else {
count += 1;
false
}
});
}
self.map.retain(|_k, v| !v.0.is_empty());
log::debug!("EventListenerCollection: cleaned-up {count} expired events");
}
pub fn get(&self, widget_id: WidgetID) -> Option<&EventListenerVec<U1, U2>> {
self.map.get(widget_id)
}
}

7
wgui/src/layout.rs
View File

@@ -152,6 +152,9 @@ impl Layout {
widget::EventResult::Outside => {
iter_children = false;
}
widget::EventResult::Unused => {
iter_children = false;
}
}
}
@@ -186,7 +189,7 @@ impl Layout {
pub fn push_event<U1, U2>(
&mut self,
listeners: &EventListenerCollection<U1, U2>,
listeners: &mut EventListenerCollection<U1, U2>,
event: &event::Event,
mut user_data: (&mut U1, &mut U2),
) -> anyhow::Result<()> {
@@ -202,6 +205,8 @@ impl Layout {
self.process_alterables(alterables)?;
listeners.gc();
Ok(())
}

4
wgui/src/parser/component_button.rs
View File

@@ -52,7 +52,7 @@ pub fn parse_component_button<'a, U1, U2>(
));
}
let _button = button::construct(
ctx.components.push(button::construct(
ctx.layout,
ctx.listeners,
parent_id,
@@ -64,7 +64,7 @@ pub fn parse_component_button<'a, U1, U2>(
text_style,
round,
},
)?;
)?);
Ok(())
}

4
wgui/src/parser/component_slider.rs
View File

@@ -32,7 +32,7 @@ pub fn parse_component_slider<'a, U1, U2>(
}
}
let slider = slider::construct(
ctx.components.push(slider::construct(
ctx.layout,
ctx.listeners,
parent_id,
@@ -42,7 +42,7 @@ pub fn parse_component_slider<'a, U1, U2>(
initial_value,
style,
},
)?;
)?);
Ok(())
}

41
wgui/src/parser/mod.rs
View File

@@ -8,6 +8,7 @@ mod widget_sprite;
use crate::{
assets::AssetProvider,
components::Component,
drawing::{self},
event::EventListenerCollection,
layout::{Layout, WidgetID},
@@ -44,15 +45,21 @@ struct ParserFile {
template_parameters: HashMap<Rc<str>, Rc<str>>,
}
pub struct ParserResult {
/*
WARNING: this struct could contain valid components with already bound listener handles.
Make sure to store them somewhere in your code.
*/
#[derive(Default)]
pub struct ParserState {
pub ids: HashMap<Rc<str>, WidgetID>,
macro_attribs: HashMap<Rc<str>, MacroAttribs>,
var_map: HashMap<Rc<str>, Rc<str>>,
pub var_map: HashMap<Rc<str>, Rc<str>>,
pub components: Vec<Rc<dyn Component>>,
pub templates: HashMap<Rc<str>, Rc<Template>>,
pub path: PathBuf,
}
impl ParserResult {
impl ParserState {
pub fn require_by_id(&self, id: &str) -> anyhow::Result<WidgetID> {
match self.ids.get(id) {
Some(id) => Ok(*id),
@@ -78,6 +85,7 @@ impl ParserResult {
ids: Default::default(),
macro_attribs: self.macro_attribs.clone(), // FIXME: prevent copying
var_map: self.var_map.clone(), // FIXME: prevent copying
components: self.components.clone(), // FIXME: prevent copying
templates: Default::default(),
};
@@ -116,6 +124,7 @@ struct ParserContext<'a, U1, U2> {
macro_attribs: HashMap<Rc<str>, MacroAttribs>,
ids: HashMap<Rc<str>, WidgetID>,
templates: HashMap<Rc<str>, Rc<Template>>,
components: Vec<Rc<dyn Component>>,
}
// Parses a color from a HTML hex string
@@ -148,7 +157,7 @@ pub fn parse_color_hex(html_hex: &str) -> Option<drawing::Color> {
));
}
}
log::warn!("failed to parse color \"{}\"", html_hex);
log::warn!("failed to parse color \"{html_hex}\"");
None
}
@@ -169,15 +178,15 @@ fn require_tag_by_name<'a>(
}
fn print_invalid_attrib(key: &str, value: &str) {
log::warn!("Invalid value \"{}\" in attribute \"{}\"", value, key);
log::warn!("Invalid value \"{value}\" in attribute \"{key}\"");
}
fn print_missing_attrib(tag_name: &str, attr: &str) {
log::warn!("Missing attribute {} in tag <{}>", attr, tag_name);
log::warn!("Missing attribute {attr} in tag <{tag_name}>");
}
fn print_invalid_value(value: &str) {
log::warn!("Invalid value \"{}\"", value);
log::warn!("Invalid value \"{value}\"");
}
fn parse_val(value: &Rc<str>) -> Option<f32> {
@@ -263,7 +272,7 @@ fn parse_widget_other<'a, U1, U2>(
parent_id: WidgetID,
) -> anyhow::Result<()> {
let Some(template) = ctx.templates.get(xml_tag_name) else {
log::error!("Undefined tag named \"{}\"", xml_tag_name);
log::error!("Undefined tag named \"{xml_tag_name}\"");
return Ok(()); // not critical
};
@@ -353,7 +362,7 @@ pub fn replace_vars(input: &str, vars: &HashMap<Rc<str>, Rc<str>>) -> Rc<str> {
match vars.get(input_var) {
Some(replacement) => replacement.clone(),
None => {
log::warn!("failed to replace var named \"{}\" (not found)", input_var);
log::warn!("failed to replace var named \"{input_var}\" (not found)");
Rc::from("")
}
}
@@ -413,7 +422,7 @@ fn iter_attribs<'a, U1, U2>(
res.push(process_attrib(file, ctx, macro_key, macro_value));
}
} else {
log::warn!("requested macro named \"{}\" not found!", value);
log::warn!("requested macro named \"{value}\" not found!");
}
} else {
res.push(process_attrib(file, ctx, key, value));
@@ -496,7 +505,7 @@ fn parse_tag_macro<U1, U2>(
}
_ => {
if macro_attribs.insert(key.clone(), value).is_some() {
log::warn!("macro attrib \"{}\" already defined!", key);
log::warn!("macro attrib \"{key}\" already defined!");
}
}
}
@@ -531,7 +540,7 @@ fn parse_universal<'a, U1, U2>(
"id" => {
// Attach a specific widget to name-ID map (just like getElementById)
if ctx.ids.insert(value.clone(), widget_id).is_some() {
log::warn!("duplicate ID \"{}\" in the same layout file!", value);
log::warn!("duplicate ID \"{value}\" in the same layout file!");
}
}
_ => {}
@@ -589,6 +598,7 @@ fn create_default_context<'a, U1, U2>(
var_map: Default::default(),
templates: Default::default(),
macro_attribs: Default::default(),
components: Default::default(),
}
}
@@ -597,7 +607,7 @@ pub fn parse_from_assets<U1, U2>(
listeners: &mut EventListenerCollection<U1, U2>,
parent_id: WidgetID,
path: &str,
) -> anyhow::Result<ParserResult> {
) -> anyhow::Result<ParserState> {
let path = PathBuf::from(path);
let mut ctx = create_default_context(layout, listeners);
@@ -606,11 +616,12 @@ pub fn parse_from_assets<U1, U2>(
parse_document_root(file, &mut ctx, parent_id, node_layout)?;
// move everything essential to the result
let result = ParserResult {
let result = ParserState {
ids: std::mem::take(&mut ctx.ids),
templates: std::mem::take(&mut ctx.templates),
macro_attribs: std::mem::take(&mut ctx.macro_attribs),
var_map: std::mem::take(&mut ctx.var_map),
components: std::mem::take(&mut ctx.components),
path,
};
@@ -623,7 +634,7 @@ pub fn new_layout_from_assets<U1, U2>(
assets: Box<dyn AssetProvider>,
listeners: &mut EventListenerCollection<U1, U2>,
path: &str,
) -> anyhow::Result<(Layout, ParserResult)> {
) -> anyhow::Result<(Layout, ParserState)> {
let mut layout = Layout::new(assets)?;
let widget = layout.root_widget;
let state = parse_from_assets(&mut layout, listeners, widget, path)?;

13
wgui/src/widget/mod.rs
View File

@@ -6,7 +6,7 @@ use crate::{
drawing,
event::{
CallbackData, CallbackDataCommon, CallbackMetadata, Event, EventAlterables, EventListener,
EventListenerKind, EventRefs, MouseWheelEvent,
EventListenerCollection, EventListenerKind, EventListenerVec, EventRefs, MouseWheelEvent,
},
layout::{Layout, WidgetID},
transform_stack::TransformStack,
@@ -135,9 +135,10 @@ impl EventParams<'_> {
}
pub enum EventResult {
Pass,
Consumed,
Outside,
Pass, // widget acknowledged it and allows the event to pass to the children
Consumed, // widget triggered an action, do not pass to children
Outside, // widget acknowledged this event but ignores it due the fact the mouse is not hovered over it
Unused, // widget doesn't have any events attached
}
fn get_scroll_enabled(style: &taffy::Style) -> (bool, bool) {
@@ -184,7 +185,7 @@ impl dyn WidgetObj {
macro_rules! call_event {
($self:ident, $listeners:ident, $widget_id:ident, $node_id:ident, $params:ident, $kind:ident, $user_data:expr, $metadata:expr) => {
for listener in $listeners {
for listener in $listeners.iter() {
if let Some(callback) = listener.callback_for_kind(EventListenerKind::$kind) {
let mut data = CallbackData {
obj: $self.obj.as_mut(),
@@ -318,7 +319,7 @@ impl WidgetState {
pub fn process_event<'a, U1, U2>(
&mut self,
widget_id: WidgetID,
listeners: &[EventListener<U1, U2>],
listeners: &EventListenerVec<U1, U2>,
node_id: taffy::NodeId,
event: &Event,
user_data: &mut (&mut U1, &mut U2),