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wip: menus

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This commit is contained in:
Ashley Wulber 2025-01-22 16:31:51 -05:00
parent a406859e65
commit 93e3d4fd42
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25 changed files with 1358 additions and 243 deletions
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242
src/widget/dropdown/menu/mod.rs
View file

@ -3,7 +3,11 @@
// SPDX-License-Identifier: MPL-2.0 AND MIT
mod appearance;
use std::borrow::Cow;
use std::sync::{Arc, Mutex};
pub use appearance::{Appearance, StyleSheet};
use iced::advanced::widget;
use crate::widget::{icon, Container};
use iced_core::event::{self, Event};
@ -21,11 +25,12 @@ use iced_widget::scrollable::Scrollable;
pub struct Menu<'a, S, Message>
where
S: AsRef<str>,
[S]: std::borrow::ToOwned,
{
state: &'a mut State,
options: &'a [S],
icons: &'a [icon::Handle],
hovered_option: &'a mut Option<usize>,
state: State,
options: Cow<'a, [S]>,
icons: Cow<'a, [icon::Handle]>,
hovered_option: Arc<Mutex<Option<usize>>>,
selected_option: Option<usize>,
on_selected: Box<dyn FnMut(usize) -> Message + 'a>,
on_option_hovered: Option<&'a dyn Fn(usize) -> Message>,
@ -36,14 +41,17 @@ where
style: (),
}
impl<'a, S: AsRef<str>, Message: 'a> Menu<'a, S, Message> {
impl<'a, S: AsRef<str>, Message: 'a + std::clone::Clone> Menu<'a, S, Message>
where
[S]: std::borrow::ToOwned,
{
/// Creates a new [`Menu`] with the given [`State`], a list of options, and
/// the message to produced when an option is selected.
pub fn new(
state: &'a mut State,
options: &'a [S],
icons: &'a [icon::Handle],
hovered_option: &'a mut Option<usize>,
state: State,
options: Cow<'a, [S]>,
icons: Cow<'a, [icon::Handle]>,
hovered_option: Arc<Mutex<Option<usize>>>,
selected_option: Option<usize>,
on_selected: impl FnMut(usize) -> Message + 'a,
on_option_hovered: Option<&'a dyn Fn(usize) -> Message>,
@ -102,20 +110,35 @@ impl<'a, S: AsRef<str>, Message: 'a> Menu<'a, S, Message> {
) -> overlay::Element<'a, Message, crate::Theme, crate::Renderer> {
overlay::Element::new(Box::new(Overlay::new(self, target_height, position)))
}
/// Turns the [`Menu`] into a popup [`Element`] at the given target
/// position.
///
/// The `target_height` will be used to display the menu either on top
/// of the target or under it, depending on the screen position and the
/// dimensions of the [`Menu`].
#[must_use]
pub fn popup(self, position: Point, target_height: f32) -> crate::Element<'a, Message> {
Overlay::new(self, target_height, position).into()
}
}
/// The local state of a [`Menu`].
#[must_use]
#[derive(Debug)]
#[derive(Debug, Clone)]
pub struct State {
tree: Tree,
pub(crate) tree: Arc<Mutex<Tree>>,
}
// XXX The tree is only used on one thread, but this is needed to make a message
unsafe impl Send for State {}
unsafe impl Sync for State {}
impl State {
/// Creates a new [`State`] for a [`Menu`].
pub fn new() -> Self {
Self {
tree: Tree::empty(),
tree: Arc::new(Mutex::new(Tree::empty())),
}
}
}
@ -127,7 +150,7 @@ impl Default for State {
}
struct Overlay<'a, Message> {
state: &'a mut Tree,
state: Arc<Mutex<Tree>>,
container: Container<'a, Message, crate::Theme, crate::Renderer>,
width: f32,
target_height: f32,
@ -140,7 +163,10 @@ impl<'a, Message: 'a> Overlay<'a, Message> {
menu: Menu<'a, S, Message>,
target_height: f32,
position: Point,
) -> Self {
) -> Self
where
[S]: ToOwned,
{
let Menu {
state,
options,
@ -172,10 +198,11 @@ impl<'a, Message: 'a> Overlay<'a, Message> {
))
.class(crate::style::Container::Dropdown);
state.tree.diff(&mut container as &mut dyn Widget<_, _, _>);
let mut tree_guard = state.tree.lock().unwrap();
tree_guard.diff(&mut container as &mut dyn Widget<_, _, _>);
drop(tree_guard);
Self {
state: &mut state.tree,
state: state.tree.clone(),
container,
width,
target_height,
@ -183,20 +210,17 @@ impl<'a, Message: 'a> Overlay<'a, Message> {
position,
}
}
}
impl<'a, Message> iced_core::Overlay<Message, crate::Theme, crate::Renderer>
for Overlay<'a, Message>
{
fn layout(&mut self, renderer: &crate::Renderer, bounds: Size) -> layout::Node {
let position = self.position;
let space_below = bounds.height - (position.y + self.target_height);
let space_above = position.y;
fn _layout(&self, renderer: &crate::Renderer, bounds: Size) -> layout::Node {
let mut guard = self.state.lock().unwrap();
let space_below = bounds.height - (self.position.y + self.target_height);
let space_above = self.position.y;
let limits = layout::Limits::new(
Size::ZERO,
Size::new(
bounds.width - position.x,
bounds.width - self.position.x,
if space_below > space_above {
space_below
} else {
@ -206,16 +230,16 @@ impl<'a, Message> iced_core::Overlay<Message, crate::Theme, crate::Renderer>
)
.width(self.width);
let node = self.container.layout(self.state, renderer, &limits);
let node = self.container.layout(&mut guard, renderer, &limits);
node.clone().move_to(if space_below > space_above {
position + Vector::new(0.0, self.target_height)
self.position + Vector::new(0.0, self.target_height)
} else {
position - Vector::new(0.0, node.size().height)
self.position - Vector::new(0.0, node.size().height)
})
}
fn on_event(
fn _on_event(
&mut self,
event: Event,
layout: Layout<'_>,
@ -225,24 +249,28 @@ impl<'a, Message> iced_core::Overlay<Message, crate::Theme, crate::Renderer>
shell: &mut Shell<'_, Message>,
) -> event::Status {
let bounds = layout.bounds();
let mut guard = self.state.lock().unwrap();
let state = &mut *guard;
self.container.on_event(
self.state, event, layout, cursor, renderer, clipboard, shell, &bounds,
state, event, layout, cursor, renderer, clipboard, shell, &bounds,
)
}
fn mouse_interaction(
fn _mouse_interaction(
&self,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
renderer: &crate::Renderer,
) -> mouse::Interaction {
let guard = self.state.lock().unwrap();
self.container
.mouse_interaction(self.state, layout, cursor, viewport, renderer)
.mouse_interaction(&guard, layout, cursor, viewport, renderer)
}
fn draw(
fn _draw(
&self,
renderer: &mut crate::Renderer,
theme: &crate::Theme,
@ -250,6 +278,8 @@ impl<'a, Message> iced_core::Overlay<Message, crate::Theme, crate::Renderer>
layout: Layout<'_>,
cursor: mouse::Cursor,
) {
let state = self.state.lock().unwrap();
let appearance = theme.appearance(&self.style);
let bounds = layout.bounds();
@ -267,14 +297,127 @@ impl<'a, Message> iced_core::Overlay<Message, crate::Theme, crate::Renderer>
);
self.container
.draw(self.state, renderer, theme, style, layout, cursor, &bounds);
.draw(&*state, renderer, theme, style, layout, cursor, &bounds);
}
}
struct List<'a, S: AsRef<str>, Message> {
options: &'a [S],
icons: &'a [icon::Handle],
hovered_option: &'a mut Option<usize>,
impl<'a, Message: 'a> iced_core::Overlay<Message, crate::Theme, crate::Renderer>
for Overlay<'a, Message>
{
fn layout(&mut self, renderer: &crate::Renderer, bounds: Size) -> layout::Node {
let mut guard = self.state.lock().unwrap();
self._layout(renderer, bounds)
}
fn on_event(
&mut self,
event: Event,
layout: Layout<'_>,
cursor: mouse::Cursor,
renderer: &crate::Renderer,
clipboard: &mut dyn Clipboard,
shell: &mut Shell<'_, Message>,
) -> event::Status {
self._on_event(event, layout, cursor, renderer, clipboard, shell)
}
fn mouse_interaction(
&self,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
renderer: &crate::Renderer,
) -> mouse::Interaction {
self._mouse_interaction(layout, cursor, viewport, renderer)
}
fn draw(
&self,
renderer: &mut crate::Renderer,
theme: &crate::Theme,
style: &renderer::Style,
layout: Layout<'_>,
cursor: mouse::Cursor,
) {
let guard = self.state.lock().unwrap();
self._draw(renderer, theme, style, layout, cursor);
}
}
impl<'a, Message: 'a> crate::widget::Widget<Message, crate::Theme, crate::Renderer>
for Overlay<'a, Message>
{
fn size(&self) -> Size<Length> {
Size::new(Length::Fixed(self.width), Length::Shrink)
}
fn layout(
&self,
_tree: &mut iced_core::widget::Tree,
renderer: &crate::Renderer,
limits: &iced::Limits,
) -> layout::Node {
let mut guard = self.state.lock().unwrap();
let limits = limits.width(self.width);
self.container.layout(&mut guard, renderer, &limits)
}
fn mouse_interaction(
&self,
_tree: &Tree,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
renderer: &crate::Renderer,
) -> mouse::Interaction {
self._mouse_interaction(layout, cursor, viewport, renderer)
}
fn on_event(
&mut self,
_tree: &mut Tree,
event: Event,
layout: Layout<'_>,
cursor: mouse::Cursor,
renderer: &crate::Renderer,
clipboard: &mut dyn Clipboard,
shell: &mut Shell<'_, Message>,
_viewport: &Rectangle,
) -> event::Status {
self._on_event(event, layout, cursor, renderer, clipboard, shell)
}
fn draw(
&self,
tree: &Tree,
renderer: &mut crate::Renderer,
theme: &crate::Theme,
style: &renderer::Style,
layout: Layout<'_>,
cursor: mouse::Cursor,
_viewport: &Rectangle,
) {
self._draw(renderer, theme, style, layout, cursor);
}
}
impl<'a, Message: Clone + 'a> From<Overlay<'a, Message>> for crate::Element<'a, Message> {
fn from(widget: Overlay<'a, Message>) -> Self {
Element::new(widget)
}
}
struct List<'a, S: AsRef<str>, Message>
where
[S]: std::borrow::ToOwned,
{
options: Cow<'a, [S]>,
icons: Cow<'a, [icon::Handle]>,
hovered_option: Arc<Mutex<Option<usize>>>,
selected_option: Option<usize>,
on_selected: Box<dyn FnMut(usize) -> Message + 'a>,
on_option_hovered: Option<&'a dyn Fn(usize) -> Message>,
@ -285,6 +428,8 @@ struct List<'a, S: AsRef<str>, Message> {
impl<'a, S: AsRef<str>, Message> Widget<Message, crate::Theme, crate::Renderer>
for List<'a, S, Message>
where
[S]: std::borrow::ToOwned,
{
fn size(&self) -> Size<Length> {
Size::new(Length::Fill, Length::Shrink)
@ -330,8 +475,9 @@ impl<'a, S: AsRef<str>, Message> Widget<Message, crate::Theme, crate::Renderer>
) -> event::Status {
match event {
Event::Mouse(mouse::Event::ButtonPressed(mouse::Button::Left)) => {
let hovered_guard = self.hovered_option.lock().unwrap();
if cursor.is_over(layout.bounds()) {
if let Some(index) = *self.hovered_option {
if let Some(index) = *hovered_guard {
shell.publish((self.on_selected)(index));
return event::Status::Captured;
}
@ -348,14 +494,15 @@ impl<'a, S: AsRef<str>, Message> Widget<Message, crate::Theme, crate::Renderer>
+ self.padding.vertical();
let new_hovered_option = (cursor_position.y / option_height) as usize;
let mut hovered_guard = self.hovered_option.lock().unwrap();
if let Some(on_option_hovered) = self.on_option_hovered {
if *self.hovered_option != Some(new_hovered_option) {
if *hovered_guard != Some(new_hovered_option) {
shell.publish(on_option_hovered(new_hovered_option));
}
}
*self.hovered_option = Some(new_hovered_option);
*hovered_guard = Some(new_hovered_option);
}
}
Event::Touch(touch::Event::FingerPressed { .. }) => {
@ -367,10 +514,11 @@ impl<'a, S: AsRef<str>, Message> Widget<Message, crate::Theme, crate::Renderer>
let option_height =
f32::from(self.text_line_height.to_absolute(Pixels(text_size)))
+ self.padding.vertical();
let mut hovered_guard = self.hovered_option.lock().unwrap();
*self.hovered_option = Some((cursor_position.y / option_height) as usize);
*hovered_guard = Some((cursor_position.y / option_height) as usize);
if let Some(index) = *self.hovered_option {
if let Some(index) = *hovered_guard {
shell.publish((self.on_selected)(index));
return event::Status::Captured;
}
@ -434,6 +582,8 @@ impl<'a, S: AsRef<str>, Message> Widget<Message, crate::Theme, crate::Renderer>
height: option_height,
};
let hovered_guard = self.hovered_option.lock().unwrap();
let (color, font) = if self.selected_option == Some(i) {
let item_x = bounds.x + appearance.border_width;
let item_width = appearance.border_width.mul_add(-2.0, bounds.width);
@ -471,7 +621,7 @@ impl<'a, S: AsRef<str>, Message> Widget<Message, crate::Theme, crate::Renderer>
);
(appearance.selected_text_color, crate::font::semibold())
} else if *self.hovered_option == Some(i) {
} else if *hovered_guard == Some(i) {
let item_x = bounds.x + appearance.border_width;
let item_width = appearance.border_width.mul_add(-2.0, bounds.width);
@ -538,6 +688,8 @@ impl<'a, S: AsRef<str>, Message> Widget<Message, crate::Theme, crate::Renderer>
impl<'a, S: AsRef<str>, Message: 'a> From<List<'a, S, Message>>
for Element<'a, Message, crate::Theme, crate::Renderer>
where
[S]: std::borrow::ToOwned,
{
fn from(list: List<'a, S, Message>) -> Self {
Element::new(list)

8
src/widget/dropdown/mod.rs
View file

@ -13,10 +13,14 @@ mod widget;
pub use widget::*;
/// Displays a list of options in a popover menu on select.
pub fn dropdown<'a, S: AsRef<str>, Message: 'a>(
pub fn dropdown<
'a,
S: AsRef<str> + std::clone::Clone + Send + Sync + 'static,
Message: 'static + Clone,
>(
selections: &'a [S],
selected: Option<usize>,
on_selected: impl Fn(usize) -> Message + 'a,
on_selected: impl Fn(usize) -> Message + Send + Sync + 'static,
) -> Dropdown<'a, S, Message> {
Dropdown::new(selections, selected, on_selected)
}

309
src/widget/dropdown/widget.rs
View file

@ -3,9 +3,10 @@
// SPDX-License-Identifier: MPL-2.0 AND MIT
use super::menu::{self, Menu};
use crate::widget::icon;
use crate::widget::icon::{self, Handle};
use crate::Element;
use derive_setters::Setters;
use iced::Radians;
use iced::{window, Radians};
use iced_core::event::{self, Event};
use iced_core::text::{self, Paragraph, Text};
use iced_core::widget::tree::{self, Tree};
@ -14,14 +15,23 @@ use iced_core::{
Clipboard, Layout, Length, Padding, Pixels, Rectangle, Shell, Size, Vector, Widget,
};
use iced_widget::pick_list::{self, Catalog};
use std::borrow::Cow;
use std::ffi::OsStr;
use std::hash::{DefaultHasher, Hash, Hasher};
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::{Arc, LazyLock, Mutex};
pub type DropdownView<Message> = Arc<dyn Fn() -> Element<'static, Message> + Send + Sync>;
static AUTOSIZE_ID: LazyLock<crate::widget::Id> =
LazyLock::new(|| crate::widget::Id::new("cosmic-applet-autosize"));
/// A widget for selecting a single value from a list of selections.
#[derive(Setters)]
pub struct Dropdown<'a, S: AsRef<str>, Message> {
pub struct Dropdown<'a, S: AsRef<str> + Send + Sync + Clone + 'static, Message>
where
[S]: std::borrow::ToOwned,
{
#[setters(skip)]
on_selected: Box<dyn Fn(usize) -> Message + 'a>,
on_selected: Arc<dyn Fn(usize) -> Message + Send + Sync>,
#[setters(skip)]
selections: &'a [S],
#[setters]
@ -38,9 +48,29 @@ pub struct Dropdown<'a, S: AsRef<str>, Message> {
text_line_height: text::LineHeight,
#[setters(strip_option)]
font: Option<crate::font::Font>,
#[cfg(feature = "wayland")]
#[setters(skip)]
on_open: Option<
Arc<
dyn Fn(
iced_runtime::platform_specific::wayland::popup::SctkPopupSettings,
DropdownView<Message>,
) -> Message
+ 'a,
>,
>,
#[setters(skip)]
on_close_popup: Option<Box<dyn Fn(window::Id) -> Message + 'a>>,
#[setters(strip_option)]
window_id: Option<window::Id>,
#[cfg(feature = "wayland")]
positioner: iced_runtime::platform_specific::wayland::popup::SctkPositioner,
}
impl<'a, S: AsRef<str>, Message> Dropdown<'a, S, Message> {
impl<'a, S: AsRef<str> + Send + Sync + Clone + 'static, Message: 'static> Dropdown<'a, S, Message>
where
[S]: std::borrow::ToOwned,
{
/// The default gap.
pub const DEFAULT_GAP: f32 = 4.0;
@ -52,10 +82,10 @@ impl<'a, S: AsRef<str>, Message> Dropdown<'a, S, Message> {
pub fn new(
selections: &'a [S],
selected: Option<usize>,
on_selected: impl Fn(usize) -> Message + 'a,
on_selected: impl Fn(usize) -> Message + 'static + Send + Sync,
) -> Self {
Self {
on_selected: Box::new(on_selected),
on_selected: Arc::new(on_selected),
selections,
icons: &[],
selected,
@ -65,12 +95,54 @@ impl<'a, S: AsRef<str>, Message> Dropdown<'a, S, Message> {
text_size: None,
text_line_height: text::LineHeight::Relative(1.2),
font: None,
#[cfg(feature = "wayland")]
on_open: None,
window_id: None,
#[cfg(feature = "wayland")]
positioner: iced_runtime::platform_specific::wayland::popup::SctkPositioner::default(),
on_close_popup: None,
}
}
#[cfg(feature = "wayland")]
/// Handle dropdown requests for popup creation.
/// Intended to be used with [`crate::app::message::get_popup`]
pub fn with_popup(
mut self,
parent_id: window::Id,
on_open: impl Fn(
iced_runtime::platform_specific::wayland::popup::SctkPopupSettings,
DropdownView<Message>,
) -> Message
+ 'a,
) -> Self {
self.window_id = Some(parent_id);
self.on_open = Some(Arc::new(on_open));
self
}
#[cfg(feature = "wayland")]
pub fn with_positioner(
mut self,
positioner: iced_runtime::platform_specific::wayland::popup::SctkPositioner,
) -> Self {
self.positioner = positioner;
self
}
#[cfg(feature = "wayland")]
/// Handle dropdown requests for popup removal.
/// Intended to be used with [`crate::app::message::destroy_popup`]
pub fn on_close_popup(mut self, on_close: impl Fn(window::Id) -> Message + 'a) -> Self {
self.on_close_popup = Some(Box::new(on_close));
self
}
}
impl<'a, S: AsRef<str>, Message: 'a> Widget<Message, crate::Theme, crate::Renderer>
for Dropdown<'a, S, Message>
impl<'a, S: AsRef<str> + Send + Sync + Clone + 'static, Message: 'static + std::clone::Clone>
Widget<Message, crate::Theme, crate::Renderer> for Dropdown<'a, S, Message>
where
[S]: std::borrow::ToOwned,
{
fn tag(&self) -> tree::Tag {
tree::Tag::of::<State>()
@ -158,10 +230,22 @@ impl<'a, S: AsRef<str>, Message: 'a> Widget<Message, crate::Theme, crate::Render
layout,
cursor,
shell,
self.on_selected.as_ref(),
#[cfg(feature = "wayland")]
self.on_open.clone(),
#[cfg(feature = "wayland")]
self.positioner.clone(),
self.on_selected.clone(),
self.selected,
self.selections,
|| tree.state.downcast_mut::<State>(),
self.window_id,
self.on_close_popup.as_deref(),
self.icons,
self.gap,
self.padding,
self.text_size,
self.font,
self.selected,
)
}
@ -211,6 +295,9 @@ impl<'a, S: AsRef<str>, Message: 'a> Widget<Message, crate::Theme, crate::Render
renderer: &crate::Renderer,
translation: Vector,
) -> Option<overlay::Element<'b, Message, crate::Theme, crate::Renderer>> {
#[cfg(feature = "wayland")]
return None;
let state = tree.state.downcast_mut::<State>();
overlay(
@ -225,7 +312,7 @@ impl<'a, S: AsRef<str>, Message: 'a> Widget<Message, crate::Theme, crate::Render
self.selections,
self.icons,
self.selected,
&self.on_selected,
self.on_selected.as_ref(),
translation,
)
}
@ -242,8 +329,10 @@ impl<'a, S: AsRef<str>, Message: 'a> Widget<Message, crate::Theme, crate::Render
// }
}
impl<'a, S: AsRef<str>, Message: 'a> From<Dropdown<'a, S, Message>>
for crate::Element<'a, Message>
impl<'a, S: AsRef<str> + Send + Sync + Clone + 'static, Message: 'static + std::clone::Clone>
From<Dropdown<'a, S, Message>> for crate::Element<'a, Message>
where
[S]: std::borrow::ToOwned,
{
fn from(pick_list: Dropdown<'a, S, Message>) -> Self {
Self::new(pick_list)
@ -251,15 +340,16 @@ impl<'a, S: AsRef<str>, Message: 'a> From<Dropdown<'a, S, Message>>
}
/// The local state of a [`Dropdown`].
#[derive(Debug)]
#[derive(Debug, Clone)]
pub struct State {
icon: Option<svg::Handle>,
menu: menu::State,
keyboard_modifiers: keyboard::Modifiers,
is_open: bool,
hovered_option: Option<usize>,
is_open: Arc<AtomicBool>,
hovered_option: Arc<Mutex<Option<usize>>>,
hashes: Vec<u64>,
selections: Vec<crate::Plain>,
popup_id: window::Id,
}
impl State {
@ -276,10 +366,11 @@ impl State {
},
menu: menu::State::default(),
keyboard_modifiers: keyboard::Modifiers::default(),
is_open: false,
hovered_option: None,
is_open: Arc::new(AtomicBool::new(false)),
hovered_option: Arc::new(Mutex::new(None)),
selections: Vec::new(),
hashes: Vec::new(),
popup_id: window::Id::unique(),
}
}
}
@ -349,31 +440,111 @@ pub fn layout(
/// Processes an [`Event`] and updates the [`State`] of a [`Dropdown`]
/// accordingly.
#[allow(clippy::too_many_arguments)]
pub fn update<'a, S: AsRef<str>, Message>(
pub fn update<
'a,
S: AsRef<str> + Send + Sync + std::clone::Clone + 'static,
Message: Clone + 'static,
>(
event: &Event,
layout: Layout<'_>,
cursor: mouse::Cursor,
shell: &mut Shell<'_, Message>,
on_selected: &dyn Fn(usize) -> Message,
#[cfg(feature = "wayland")] on_open: Option<
Arc<
dyn Fn(
iced_runtime::platform_specific::wayland::popup::SctkPopupSettings,
DropdownView<Message>,
) -> Message
+ 'a,
>,
>,
#[cfg(feature = "wayland")]
positioner: iced_runtime::platform_specific::wayland::popup::SctkPositioner,
on_selected: Arc<dyn Fn(usize) -> Message + Send + Sync + 'static>,
selected: Option<usize>,
selections: &[S],
state: impl FnOnce() -> &'a mut State,
window_id: Option<window::Id>,
on_close: Option<&'a dyn Fn(window::Id) -> Message>,
icons: &[icon::Handle],
gap: f32,
padding: Padding,
text_size: Option<f32>,
font: Option<crate::font::Font>,
selected_option: Option<usize>,
) -> event::Status {
match event {
Event::Mouse(mouse::Event::ButtonPressed(mouse::Button::Left))
| Event::Touch(touch::Event::FingerPressed { .. }) => {
let state = state();
if state.is_open {
let is_open = state.is_open.load(Ordering::Relaxed);
if is_open {
// Event wasn't processed by overlay, so cursor was clicked either outside it's
// bounds or on the drop-down, either way we close the overlay.
state.is_open = false;
state.is_open.store(false, Ordering::Relaxed);
if let Some(on_close) = on_close {
shell.publish(on_close(state.popup_id));
}
event::Status::Captured
} else if cursor.is_over(layout.bounds()) {
state.is_open = true;
state.hovered_option = selected;
state.is_open.store(true, Ordering::Relaxed);
let mut hovered_guard = state.hovered_option.lock().unwrap();
*hovered_guard = selected;
let id = window::Id::unique();
state.popup_id = id;
#[cfg(feature = "wayland")]
if let Some((on_open, parent)) = on_open.zip(window_id) {
use iced_runtime::platform_specific::wayland::popup::{
SctkPopupSettings, SctkPositioner,
};
let bounds = layout.bounds();
let anchor_rect = Rectangle {
x: bounds.x as i32,
y: bounds.y as i32,
width: bounds.width as i32,
height: bounds.height as i32,
};
let icon_width = if icons.is_empty() { 0.0 } else { 24.0 };
let measure = |_label: &str, selection_paragraph: &crate::Paragraph| -> f32 {
selection_paragraph.min_width().round()
};
let pad_width = padding.horizontal().mul_add(2.0, 16.0);
let selections_width = selections
.iter()
.zip(state.selections.iter_mut())
.map(|(label, selection)| measure(label.as_ref(), selection.raw()))
.fold(0.0, |next, current| current.max(next));
let icons: Cow<'static, [Handle]> = Cow::Owned(icons.to_vec());
let selections: Cow<'static, [S]> = Cow::Owned(selections.to_vec());
let state = state.clone();
shell.publish(on_open(
SctkPopupSettings {
parent,
id,
positioner: SctkPositioner {
size: Some((selections_width as u32 + gap as u32 + pad_width as u32 + icon_width as u32, 10)),
anchor_rect,
anchor: cctk::wayland_protocols::xdg::shell::client::xdg_positioner::Anchor::Top,
gravity:cctk::wayland_protocols::xdg::shell::client::xdg_positioner::Gravity::Bottom,
reactive: true,
..Default::default()
},
parent_size: None,
grab: true,
close_with_children: true
},
Arc::new(move || {
Element::from(
menu_widget(
bounds, &state, gap, padding,text_size.unwrap_or(14.0), selections.clone(), icons.clone(), selected_option, on_selected.clone()
)
)
}),
));
}
event::Status::Captured
} else {
event::Status::Ignored
@ -383,11 +554,9 @@ pub fn update<'a, S: AsRef<str>, Message>(
delta: mouse::ScrollDelta::Lines { .. },
}) => {
let state = state();
let is_open = state.is_open.load(Ordering::Relaxed);
if state.keyboard_modifiers.command()
&& cursor.is_over(layout.bounds())
&& !state.is_open
{
if state.keyboard_modifiers.command() && cursor.is_over(layout.bounds()) && !is_open {
let next_index = selected.map(|index| index + 1).unwrap_or_default();
if selections.len() < next_index {
@ -423,9 +592,70 @@ pub fn mouse_interaction(layout: Layout<'_>, cursor: mouse::Cursor) -> mouse::In
}
}
#[cfg(feature = "wayland")]
/// Returns the current menu widget of a [`Dropdown`].
#[allow(clippy::too_many_arguments)]
pub fn menu_widget<
S: AsRef<str> + Send + Sync + Clone + 'static,
Message: 'static + std::clone::Clone,
>(
bounds: Rectangle,
state: &State,
gap: f32,
padding: Padding,
text_size: f32,
selections: Cow<'static, [S]>,
icons: Cow<'static, [icon::Handle]>,
selected_option: Option<usize>,
on_selected: Arc<dyn Fn(usize) -> Message + Send + Sync + 'static>,
) -> crate::Element<'static, Message>
where
[S]: std::borrow::ToOwned,
{
let icon_width = if icons.is_empty() { 0.0 } else { 24.0 };
let measure = |_label: &str, selection_paragraph: &crate::Paragraph| -> f32 {
selection_paragraph.min_width().round()
};
let selections_width = selections
.iter()
.zip(state.selections.iter())
.map(|(label, selection)| measure(label.as_ref(), selection.raw()))
.fold(0.0, |next, current| current.max(next));
let pad_width = padding.horizontal().mul_add(2.0, 16.0);
let width = selections_width + gap + pad_width + icon_width;
let is_open = state.is_open.clone();
let menu: Menu<'static, S, Message> = Menu::new(
state.menu.clone(),
selections,
icons,
state.hovered_option.clone(),
selected_option,
move |option| {
is_open.store(false, Ordering::Relaxed);
(on_selected)(option)
},
None,
)
.width(width)
.padding(padding)
.text_size(text_size);
crate::widget::autosize::autosize(
menu.popup(iced::Point::new(0., 0.), bounds.height),
AUTOSIZE_ID.clone(),
)
.auto_height(true)
.auto_width(true)
.min_height(1.)
.min_width(width)
.into()
}
/// Returns the current overlay of a [`Dropdown`].
#[allow(clippy::too_many_arguments)]
pub fn overlay<'a, S: AsRef<str>, Message: 'a>(
pub fn overlay<'a, S: AsRef<str> + Send + Sync + Clone + 'static, Message: std::clone::Clone + 'a>(
layout: Layout<'_>,
_renderer: &crate::Renderer,
state: &'a mut State,
@ -439,18 +669,21 @@ pub fn overlay<'a, S: AsRef<str>, Message: 'a>(
selected_option: Option<usize>,
on_selected: &'a dyn Fn(usize) -> Message,
translation: Vector,
) -> Option<overlay::Element<'a, Message, crate::Theme, crate::Renderer>> {
if state.is_open {
) -> Option<overlay::Element<'a, Message, crate::Theme, crate::Renderer>>
where
[S]: std::borrow::ToOwned,
{
if state.is_open.load(Ordering::Relaxed) {
let bounds = layout.bounds();
let menu = Menu::new(
&mut state.menu,
selections,
icons,
&mut state.hovered_option,
state.menu.clone(),
Cow::Borrowed(selections),
Cow::Borrowed(icons),
state.hovered_option.clone(),
selected_option,
|option| {
state.is_open = false;
state.is_open.store(false, Ordering::Relaxed);
(on_selected)(option)
},