297 lines
8.8 KiB
Rust
297 lines
8.8 KiB
Rust
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//! Test your `iced` applications in headless mode.
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#![allow(missing_docs, missing_debug_implementations)]
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pub mod selector;
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pub use selector::Selector;
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use iced_renderer as renderer;
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use iced_runtime as runtime;
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use iced_runtime::core;
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use iced_tiny_skia as tiny_skia;
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use crate::core::clipboard;
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use crate::core::keyboard;
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use crate::core::mouse;
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use crate::core::widget;
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use crate::core::{Element, Event, Font, Pixels, Rectangle, Size, SmolStr};
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use crate::renderer::Renderer;
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use crate::runtime::user_interface;
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use crate::runtime::UserInterface;
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pub fn interface<'a, Message, Theme>(
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element: impl Into<Element<'a, Message, Theme, Renderer>>,
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) -> Interface<'a, Message, Theme, Renderer> {
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let mut renderer = Renderer::Secondary(tiny_skia::Renderer::new(
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Font::default(),
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Pixels(16.0),
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));
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let raw = UserInterface::build(
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element,
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Size::new(1024.0, 1024.0),
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user_interface::Cache::default(),
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&mut renderer,
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);
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Interface {
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raw,
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renderer,
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messages: Vec::new(),
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}
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}
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pub struct Interface<'a, Message, Theme, Renderer> {
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raw: UserInterface<'a, Message, Theme, Renderer>,
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renderer: Renderer,
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messages: Vec<Message>,
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}
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pub struct Target {
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bounds: Rectangle,
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}
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impl<Message, Theme, Renderer> Interface<'_, Message, Theme, Renderer>
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where
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Renderer: core::Renderer,
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{
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pub fn find(
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&mut self,
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selector: impl Into<Selector>,
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) -> Result<Target, Error> {
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let selector = selector.into();
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match &selector {
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Selector::Id(id) => {
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struct FindById<'a> {
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id: &'a widget::Id,
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target: Option<Target>,
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}
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impl widget::Operation for FindById<'_> {
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fn container(
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&mut self,
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id: Option<&widget::Id>,
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bounds: Rectangle,
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operate_on_children: &mut dyn FnMut(
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&mut dyn widget::Operation<()>,
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),
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) {
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if self.target.is_some() {
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return;
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}
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if Some(self.id) == id {
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self.target = Some(Target { bounds });
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return;
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}
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operate_on_children(self);
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}
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fn scrollable(
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&mut self,
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id: Option<&widget::Id>,
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bounds: Rectangle,
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_content_bounds: Rectangle,
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_translation: core::Vector,
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_state: &mut dyn widget::operation::Scrollable,
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) {
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if self.target.is_some() {
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return;
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}
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if Some(self.id) == id {
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self.target = Some(Target { bounds });
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}
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}
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fn text_input(
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&mut self,
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id: Option<&widget::Id>,
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bounds: Rectangle,
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_state: &mut dyn widget::operation::TextInput,
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) {
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if self.target.is_some() {
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return;
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}
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if Some(self.id) == id {
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self.target = Some(Target { bounds });
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}
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}
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fn text(
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&mut self,
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id: Option<&widget::Id>,
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bounds: Rectangle,
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_text: &str,
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) {
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if self.target.is_some() {
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return;
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}
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if Some(self.id) == id {
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self.target = Some(Target { bounds });
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}
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}
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fn custom(
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&mut self,
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id: Option<&widget::Id>,
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bounds: Rectangle,
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_state: &mut dyn std::any::Any,
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) {
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if self.target.is_some() {
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return;
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}
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if Some(self.id) == id {
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self.target = Some(Target { bounds });
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}
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}
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}
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let mut find = FindById { id, target: None };
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self.raw.operate(&self.renderer, &mut find);
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find.target.ok_or(Error::NotFound(selector))
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}
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Selector::Text(text) => {
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struct FindByText<'a> {
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text: &'a str,
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target: Option<Target>,
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}
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impl widget::Operation for FindByText<'_> {
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fn container(
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&mut self,
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_id: Option<&widget::Id>,
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_bounds: Rectangle,
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operate_on_children: &mut dyn FnMut(
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&mut dyn widget::Operation<()>,
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),
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) {
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if self.target.is_some() {
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return;
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}
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operate_on_children(self);
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}
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fn text(
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&mut self,
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_id: Option<&widget::Id>,
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bounds: Rectangle,
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text: &str,
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) {
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if self.target.is_some() {
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return;
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}
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if self.text == text {
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self.target = Some(Target { bounds });
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}
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}
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}
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let mut find = FindByText { text, target: None };
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self.raw.operate(&self.renderer, &mut find);
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find.target.ok_or(Error::NotFound(selector))
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}
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}
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}
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pub fn click(
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&mut self,
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selector: impl Into<Selector>,
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) -> Result<Target, Error> {
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let target = self.find(selector)?;
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let _ = self.raw.update(
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&[
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Event::Mouse(mouse::Event::ButtonPressed(mouse::Button::Left)),
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Event::Mouse(mouse::Event::ButtonReleased(mouse::Button::Left)),
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],
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mouse::Cursor::Available(target.bounds.center()),
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&mut self.renderer,
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&mut clipboard::Null,
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&mut self.messages,
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);
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Ok(target)
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}
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pub fn typewrite(&mut self, text: impl AsRef<str>) {
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let events: Vec<_> = text
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.as_ref()
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.chars()
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.map(|c| SmolStr::new_inline(&c.to_string()))
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.flat_map(|c| {
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key_press_and_release(
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keyboard::Key::Character(c.clone()),
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Some(c),
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)
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})
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.collect();
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let _ = self.raw.update(
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&events,
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mouse::Cursor::Unavailable,
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&mut self.renderer,
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&mut clipboard::Null,
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&mut self.messages,
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);
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}
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pub fn press_key(&mut self, key: impl Into<keyboard::Key>) {
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let _ = self.raw.update(
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&key_press_and_release(key, None),
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mouse::Cursor::Unavailable,
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&mut self.renderer,
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&mut clipboard::Null,
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&mut self.messages,
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);
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}
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pub fn into_messages(self) -> impl IntoIterator<Item = Message> {
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self.messages
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}
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}
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fn key_press_and_release(
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key: impl Into<keyboard::Key>,
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text: Option<SmolStr>,
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) -> [Event; 2] {
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let key = key.into();
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[
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Event::Keyboard(keyboard::Event::KeyPressed {
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key: key.clone(),
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modified_key: key.clone(),
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physical_key: keyboard::key::Physical::Unidentified(
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keyboard::key::NativeCode::Unidentified,
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),
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location: keyboard::Location::Standard,
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modifiers: keyboard::Modifiers::default(),
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text,
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}),
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Event::Keyboard(keyboard::Event::KeyReleased {
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key: key.clone(),
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modified_key: key,
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physical_key: keyboard::key::Physical::Unidentified(
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keyboard::key::NativeCode::Unidentified,
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),
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location: keyboard::Location::Standard,
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modifiers: keyboard::Modifiers::default(),
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}),
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]
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}
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#[derive(Debug, Clone)]
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pub enum Error {
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NotFound(Selector),
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}
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