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Return event::Status in UserInterface::update

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This commit is contained in:
Héctor Ramón Jiménez 2020-11-12 02:00:08 +01:00
parent 6e9bd0d9d1
commit 33d80b5a0b
4 changed files with 107 additions and 92 deletions
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20
native/src/program/state.rs
View file

@ -120,15 +120,19 @@ where
);
debug.event_processing_started();
let mut messages = user_interface.update(
&self.queued_events,
cursor_position,
clipboard,
renderer,
);
messages.extend(self.queued_messages.drain(..));
let mut messages = Vec::new();
self.queued_events.clear();
for event in self.queued_events.drain(..) {
let _ = user_interface.update(
event,
cursor_position,
clipboard,
renderer,
&mut messages,
);
}
messages.extend(self.queued_messages.drain(..));
debug.event_processing_finished();
if messages.is_empty() {

97
native/src/user_interface.rs
View file

@ -1,6 +1,7 @@
use crate::event::{self, Event};
use crate::layout;
use crate::overlay;
use crate::{Clipboard, Element, Event, Layout, Point, Rectangle, Size};
use crate::{Clipboard, Element, Layout, Point, Rectangle, Size};
use std::hash::Hasher;
@ -169,9 +170,10 @@ where
///
/// // Initialize our event storage
/// let mut events = Vec::new();
/// let mut messages = Vec::new();
///
/// loop {
/// // Process system events...
/// // Obtain system events...
///
/// let mut user_interface = UserInterface::build(
/// counter.view(),
@ -180,32 +182,34 @@ where
/// &mut renderer,
/// );
///
/// // Update the user interface
/// let messages = user_interface.update(
/// &events,
/// cursor_position,
/// None,
/// &renderer,
/// );
/// for event in events.drain(..) {
/// // Update the user interface
/// let _event_status = user_interface.update(
/// event,
/// cursor_position,
/// None,
/// &renderer,
/// &mut messages
/// );
/// }
///
/// cache = user_interface.into_cache();
///
/// // Process the produced messages
/// for message in messages {
/// for message in messages.drain(..) {
/// counter.update(message);
/// }
/// }
/// ```
pub fn update(
&mut self,
events: &[Event],
event: Event,
cursor_position: Point,
clipboard: Option<&dyn Clipboard>,
renderer: &Renderer,
) -> Vec<Message> {
let mut messages = Vec::new();
let base_cursor = if let Some(mut overlay) =
messages: &mut Vec<Message>,
) -> event::Status {
let (base_cursor, overlay_status) = if let Some(mut overlay) =
self.root.overlay(Layout::new(&self.base.layout))
{
let layer = Self::overlay_layer(
@ -215,16 +219,14 @@ where
renderer,
);
for event in events {
let _ = overlay.on_event(
event.clone(),
Layout::new(&layer.layout),
cursor_position,
&mut messages,
renderer,
clipboard,
);
}
let event_status = overlay.on_event(
event.clone(),
Layout::new(&layer.layout),
cursor_position,
messages,
renderer,
clipboard,
);
let base_cursor = if layer.layout.bounds().contains(cursor_position)
{
@ -236,23 +238,21 @@ where
self.overlay = Some(layer);
base_cursor
(base_cursor, event_status)
} else {
cursor_position
(cursor_position, event::Status::Ignored)
};
for event in events {
let _ = self.root.widget.on_event(
event.clone(),
Layout::new(&self.base.layout),
base_cursor,
&mut messages,
renderer,
clipboard,
);
}
let event_status = self.root.widget.on_event(
event,
Layout::new(&self.base.layout),
base_cursor,
messages,
renderer,
clipboard,
);
messages
event_status.merge(overlay_status)
}
/// Draws the [`UserInterface`] with the provided [`Renderer`].
@ -293,9 +293,10 @@ where
/// let mut window_size = Size::new(1024.0, 768.0);
/// let mut cursor_position = Point::default();
/// let mut events = Vec::new();
/// let mut messages = Vec::new();
///
/// loop {
/// // Process system events...
/// // Obtain system events...
///
/// let mut user_interface = UserInterface::build(
/// counter.view(),
@ -304,19 +305,23 @@ where
/// &mut renderer,
/// );
///
/// let messages = user_interface.update(
/// &events,
/// cursor_position,
/// None,
/// &renderer,
/// );
/// for event in events.drain(..) {
/// // Update the user interface
/// let _event_status = user_interface.update(
/// event,
/// cursor_position,
/// None,
/// &renderer,
/// &mut messages
/// );
/// }
///
/// // Draw the user interface
/// let mouse_cursor = user_interface.draw(&mut renderer, cursor_position);
///
/// cache = user_interface.into_cache();
///
/// for message in messages {
/// for message in messages.drain(..) {
/// counter.update(message);
/// }
///