ZIm/crates/gpui/src/platform.rs
Terminal 90f30b5c20
gpui: Allow DisplayId to be compared to u32 (#27895)
allow DisplayId to be compared to u32. This is handy since gpui doesn't
provide a method to detect current active display of the user. So when
using mouse location to get the active display we need to then compare
that display u32 to DisplayID

Release Notes:
- added From to allow u32 comparison
2025-04-10 14:41:10 -06:00

1563 lines
48 KiB
Rust

// todo(windows): remove
#![cfg_attr(windows, allow(dead_code))]
mod app_menu;
mod keystroke;
#[cfg(any(target_os = "linux", target_os = "freebsd"))]
mod linux;
#[cfg(target_os = "macos")]
mod mac;
#[cfg(any(
all(
any(target_os = "linux", target_os = "freebsd"),
any(feature = "x11", feature = "wayland")
),
target_os = "windows",
feature = "macos-blade"
))]
mod blade;
#[cfg(any(test, feature = "test-support"))]
mod test;
#[cfg(target_os = "windows")]
mod windows;
#[cfg(all(
any(target_os = "linux", target_os = "freebsd"),
any(feature = "wayland", feature = "x11"),
))]
pub(crate) mod scap_screen_capture;
use crate::{
Action, AnyWindowHandle, App, AsyncWindowContext, BackgroundExecutor, Bounds,
DEFAULT_WINDOW_SIZE, DevicePixels, DispatchEventResult, Font, FontId, FontMetrics, FontRun,
ForegroundExecutor, GlyphId, GpuSpecs, ImageSource, Keymap, LineLayout, Pixels, PlatformInput,
Point, RenderGlyphParams, RenderImage, RenderImageParams, RenderSvgParams, ScaledPixels, Scene,
SharedString, Size, SvgRenderer, SvgSize, Task, TaskLabel, Window, point,
};
use anyhow::{Result, anyhow};
use async_task::Runnable;
use futures::channel::oneshot;
use image::codecs::gif::GifDecoder;
use image::{AnimationDecoder as _, Frame};
use parking::Unparker;
use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
use seahash::SeaHasher;
use serde::{Deserialize, Serialize};
use smallvec::SmallVec;
use std::borrow::Cow;
use std::hash::{Hash, Hasher};
use std::io::Cursor;
use std::ops;
use std::time::{Duration, Instant};
use std::{
fmt::{self, Debug},
ops::Range,
path::{Path, PathBuf},
rc::Rc,
sync::Arc,
};
use strum::EnumIter;
use uuid::Uuid;
pub use app_menu::*;
pub use keystroke::*;
#[cfg(any(target_os = "linux", target_os = "freebsd"))]
pub(crate) use linux::*;
#[cfg(target_os = "macos")]
pub(crate) use mac::*;
pub use semantic_version::SemanticVersion;
#[cfg(any(test, feature = "test-support"))]
pub(crate) use test::*;
#[cfg(target_os = "windows")]
pub(crate) use windows::*;
#[cfg(any(test, feature = "test-support"))]
pub use test::TestScreenCaptureSource;
/// Returns a background executor for the current platform.
pub fn background_executor() -> BackgroundExecutor {
current_platform(true).background_executor()
}
#[cfg(target_os = "macos")]
pub(crate) fn current_platform(headless: bool) -> Rc<dyn Platform> {
Rc::new(MacPlatform::new(headless))
}
#[cfg(any(target_os = "linux", target_os = "freebsd"))]
pub(crate) fn current_platform(headless: bool) -> Rc<dyn Platform> {
if headless {
return Rc::new(HeadlessClient::new());
}
match guess_compositor() {
#[cfg(feature = "wayland")]
"Wayland" => Rc::new(WaylandClient::new()),
#[cfg(feature = "x11")]
"X11" => Rc::new(X11Client::new()),
"Headless" => Rc::new(HeadlessClient::new()),
_ => unreachable!(),
}
}
/// Return which compositor we're guessing we'll use.
/// Does not attempt to connect to the given compositor
#[cfg(any(target_os = "linux", target_os = "freebsd"))]
#[inline]
pub fn guess_compositor() -> &'static str {
if std::env::var_os("ZED_HEADLESS").is_some() {
return "Headless";
}
#[cfg(feature = "wayland")]
let wayland_display = std::env::var_os("WAYLAND_DISPLAY");
#[cfg(not(feature = "wayland"))]
let wayland_display: Option<std::ffi::OsString> = None;
#[cfg(feature = "x11")]
let x11_display = std::env::var_os("DISPLAY");
#[cfg(not(feature = "x11"))]
let x11_display: Option<std::ffi::OsString> = None;
let use_wayland = wayland_display.is_some_and(|display| !display.is_empty());
let use_x11 = x11_display.is_some_and(|display| !display.is_empty());
if use_wayland {
"Wayland"
} else if use_x11 {
"X11"
} else {
"Headless"
}
}
#[cfg(target_os = "windows")]
pub(crate) fn current_platform(_headless: bool) -> Rc<dyn Platform> {
Rc::new(WindowsPlatform::new())
}
pub(crate) trait Platform: 'static {
fn background_executor(&self) -> BackgroundExecutor;
fn foreground_executor(&self) -> ForegroundExecutor;
fn text_system(&self) -> Arc<dyn PlatformTextSystem>;
fn run(&self, on_finish_launching: Box<dyn 'static + FnOnce()>);
fn quit(&self);
fn restart(&self, binary_path: Option<PathBuf>);
fn activate(&self, ignoring_other_apps: bool);
fn hide(&self);
fn hide_other_apps(&self);
fn unhide_other_apps(&self);
fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>>;
fn primary_display(&self) -> Option<Rc<dyn PlatformDisplay>>;
fn active_window(&self) -> Option<AnyWindowHandle>;
fn window_stack(&self) -> Option<Vec<AnyWindowHandle>> {
None
}
fn is_screen_capture_supported(&self) -> bool;
fn screen_capture_sources(
&self,
) -> oneshot::Receiver<Result<Vec<Box<dyn ScreenCaptureSource>>>>;
fn open_window(
&self,
handle: AnyWindowHandle,
options: WindowParams,
) -> anyhow::Result<Box<dyn PlatformWindow>>;
/// Returns the appearance of the application's windows.
fn window_appearance(&self) -> WindowAppearance;
fn open_url(&self, url: &str);
fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>);
fn register_url_scheme(&self, url: &str) -> Task<Result<()>>;
fn prompt_for_paths(
&self,
options: PathPromptOptions,
) -> oneshot::Receiver<Result<Option<Vec<PathBuf>>>>;
fn prompt_for_new_path(&self, directory: &Path) -> oneshot::Receiver<Result<Option<PathBuf>>>;
fn can_select_mixed_files_and_dirs(&self) -> bool;
fn reveal_path(&self, path: &Path);
fn open_with_system(&self, path: &Path);
fn on_quit(&self, callback: Box<dyn FnMut()>);
fn on_reopen(&self, callback: Box<dyn FnMut()>);
fn on_keyboard_layout_change(&self, callback: Box<dyn FnMut()>);
fn set_menus(&self, menus: Vec<Menu>, keymap: &Keymap);
fn get_menus(&self) -> Option<Vec<OwnedMenu>> {
None
}
fn set_dock_menu(&self, menu: Vec<MenuItem>, keymap: &Keymap);
fn perform_dock_menu_action(&self, _action: usize) {}
fn add_recent_document(&self, _path: &Path) {}
fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>);
fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>);
fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>);
fn keyboard_layout(&self) -> String;
fn compositor_name(&self) -> &'static str {
""
}
fn app_path(&self) -> Result<PathBuf>;
fn path_for_auxiliary_executable(&self, name: &str) -> Result<PathBuf>;
fn set_cursor_style(&self, style: CursorStyle);
fn should_auto_hide_scrollbars(&self) -> bool;
#[cfg(any(target_os = "linux", target_os = "freebsd"))]
fn write_to_primary(&self, item: ClipboardItem);
fn write_to_clipboard(&self, item: ClipboardItem);
#[cfg(any(target_os = "linux", target_os = "freebsd"))]
fn read_from_primary(&self) -> Option<ClipboardItem>;
fn read_from_clipboard(&self) -> Option<ClipboardItem>;
fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Task<Result<()>>;
fn read_credentials(&self, url: &str) -> Task<Result<Option<(String, Vec<u8>)>>>;
fn delete_credentials(&self, url: &str) -> Task<Result<()>>;
}
/// A handle to a platform's display, e.g. a monitor or laptop screen.
pub trait PlatformDisplay: Send + Sync + Debug {
/// Get the ID for this display
fn id(&self) -> DisplayId;
/// Returns a stable identifier for this display that can be persisted and used
/// across system restarts.
fn uuid(&self) -> Result<Uuid>;
/// Get the bounds for this display
fn bounds(&self) -> Bounds<Pixels>;
/// Get the default bounds for this display to place a window
fn default_bounds(&self) -> Bounds<Pixels> {
let center = self.bounds().center();
let offset = DEFAULT_WINDOW_SIZE / 2.0;
let origin = point(center.x - offset.width, center.y - offset.height);
Bounds::new(origin, DEFAULT_WINDOW_SIZE)
}
}
/// A source of on-screen video content that can be captured.
pub trait ScreenCaptureSource {
/// Returns the video resolution of this source.
fn resolution(&self) -> Result<Size<DevicePixels>>;
/// Start capture video from this source, invoking the given callback
/// with each frame.
fn stream(
&self,
foreground_executor: &ForegroundExecutor,
frame_callback: Box<dyn Fn(ScreenCaptureFrame) + Send>,
) -> oneshot::Receiver<Result<Box<dyn ScreenCaptureStream>>>;
}
/// A video stream captured from a screen.
pub trait ScreenCaptureStream {}
/// A frame of video captured from a screen.
pub struct ScreenCaptureFrame(pub PlatformScreenCaptureFrame);
/// An opaque identifier for a hardware display
#[derive(PartialEq, Eq, Hash, Copy, Clone)]
pub struct DisplayId(pub(crate) u32);
impl From<DisplayId> for u32 {
fn from(id: DisplayId) -> Self {
id.0
}
}
impl Debug for DisplayId {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "DisplayId({})", self.0)
}
}
unsafe impl Send for DisplayId {}
/// Which part of the window to resize
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum ResizeEdge {
/// The top edge
Top,
/// The top right corner
TopRight,
/// The right edge
Right,
/// The bottom right corner
BottomRight,
/// The bottom edge
Bottom,
/// The bottom left corner
BottomLeft,
/// The left edge
Left,
/// The top left corner
TopLeft,
}
/// A type to describe the appearance of a window
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default)]
pub enum WindowDecorations {
#[default]
/// Server side decorations
Server,
/// Client side decorations
Client,
}
/// A type to describe how this window is currently configured
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default)]
pub enum Decorations {
/// The window is configured to use server side decorations
#[default]
Server,
/// The window is configured to use client side decorations
Client {
/// The edge tiling state
tiling: Tiling,
},
}
/// What window controls this platform supports
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
pub struct WindowControls {
/// Whether this platform supports fullscreen
pub fullscreen: bool,
/// Whether this platform supports maximize
pub maximize: bool,
/// Whether this platform supports minimize
pub minimize: bool,
/// Whether this platform supports a window menu
pub window_menu: bool,
}
impl Default for WindowControls {
fn default() -> Self {
// Assume that we can do anything, unless told otherwise
Self {
fullscreen: true,
maximize: true,
minimize: true,
window_menu: true,
}
}
}
/// A type to describe which sides of the window are currently tiled in some way
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default)]
pub struct Tiling {
/// Whether the top edge is tiled
pub top: bool,
/// Whether the left edge is tiled
pub left: bool,
/// Whether the right edge is tiled
pub right: bool,
/// Whether the bottom edge is tiled
pub bottom: bool,
}
impl Tiling {
/// Initializes a [`Tiling`] type with all sides tiled
pub fn tiled() -> Self {
Self {
top: true,
left: true,
right: true,
bottom: true,
}
}
/// Whether any edge is tiled
pub fn is_tiled(&self) -> bool {
self.top || self.left || self.right || self.bottom
}
}
#[derive(Debug, Copy, Clone, Eq, PartialEq, Default)]
pub(crate) struct RequestFrameOptions {
pub(crate) require_presentation: bool,
}
pub(crate) trait PlatformWindow: HasWindowHandle + HasDisplayHandle {
fn bounds(&self) -> Bounds<Pixels>;
fn is_maximized(&self) -> bool;
fn window_bounds(&self) -> WindowBounds;
fn content_size(&self) -> Size<Pixels>;
fn resize(&mut self, size: Size<Pixels>);
fn scale_factor(&self) -> f32;
fn appearance(&self) -> WindowAppearance;
fn display(&self) -> Option<Rc<dyn PlatformDisplay>>;
fn mouse_position(&self) -> Point<Pixels>;
fn modifiers(&self) -> Modifiers;
fn set_input_handler(&mut self, input_handler: PlatformInputHandler);
fn take_input_handler(&mut self) -> Option<PlatformInputHandler>;
fn prompt(
&self,
level: PromptLevel,
msg: &str,
detail: Option<&str>,
answers: &[&str],
) -> Option<oneshot::Receiver<usize>>;
fn activate(&self);
fn is_active(&self) -> bool;
fn is_hovered(&self) -> bool;
fn set_title(&mut self, title: &str);
fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance);
fn minimize(&self);
fn zoom(&self);
fn toggle_fullscreen(&self);
fn is_fullscreen(&self) -> bool;
fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>);
fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> DispatchEventResult>);
fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>);
fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>);
fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>);
fn on_moved(&self, callback: Box<dyn FnMut()>);
fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>);
fn on_close(&self, callback: Box<dyn FnOnce()>);
fn on_appearance_changed(&self, callback: Box<dyn FnMut()>);
fn draw(&self, scene: &Scene);
fn completed_frame(&self) {}
fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas>;
// macOS specific methods
fn set_edited(&mut self, _edited: bool) {}
fn show_character_palette(&self) {}
#[cfg(target_os = "windows")]
fn get_raw_handle(&self) -> windows::HWND;
// Linux specific methods
fn inner_window_bounds(&self) -> WindowBounds {
self.window_bounds()
}
fn request_decorations(&self, _decorations: WindowDecorations) {}
fn show_window_menu(&self, _position: Point<Pixels>) {}
fn start_window_move(&self) {}
fn start_window_resize(&self, _edge: ResizeEdge) {}
fn window_decorations(&self) -> Decorations {
Decorations::Server
}
fn set_app_id(&mut self, _app_id: &str) {}
fn map_window(&mut self) -> anyhow::Result<()> {
Ok(())
}
fn window_controls(&self) -> WindowControls {
WindowControls::default()
}
fn set_client_inset(&self, _inset: Pixels) {}
fn gpu_specs(&self) -> Option<GpuSpecs>;
fn update_ime_position(&self, _bounds: Bounds<ScaledPixels>);
#[cfg(any(test, feature = "test-support"))]
fn as_test(&mut self) -> Option<&mut TestWindow> {
None
}
}
/// This type is public so that our test macro can generate and use it, but it should not
/// be considered part of our public API.
#[doc(hidden)]
pub trait PlatformDispatcher: Send + Sync {
fn is_main_thread(&self) -> bool;
fn dispatch(&self, runnable: Runnable, label: Option<TaskLabel>);
fn dispatch_on_main_thread(&self, runnable: Runnable);
fn dispatch_after(&self, duration: Duration, runnable: Runnable);
fn park(&self, timeout: Option<Duration>) -> bool;
fn unparker(&self) -> Unparker;
fn now(&self) -> Instant {
Instant::now()
}
#[cfg(any(test, feature = "test-support"))]
fn as_test(&self) -> Option<&TestDispatcher> {
None
}
}
pub(crate) trait PlatformTextSystem: Send + Sync {
fn add_fonts(&self, fonts: Vec<Cow<'static, [u8]>>) -> Result<()>;
fn all_font_names(&self) -> Vec<String>;
fn font_id(&self, descriptor: &Font) -> Result<FontId>;
fn font_metrics(&self, font_id: FontId) -> FontMetrics;
fn typographic_bounds(&self, font_id: FontId, glyph_id: GlyphId) -> Result<Bounds<f32>>;
fn advance(&self, font_id: FontId, glyph_id: GlyphId) -> Result<Size<f32>>;
fn glyph_for_char(&self, font_id: FontId, ch: char) -> Option<GlyphId>;
fn glyph_raster_bounds(&self, params: &RenderGlyphParams) -> Result<Bounds<DevicePixels>>;
fn rasterize_glyph(
&self,
params: &RenderGlyphParams,
raster_bounds: Bounds<DevicePixels>,
) -> Result<(Size<DevicePixels>, Vec<u8>)>;
fn layout_line(&self, text: &str, font_size: Pixels, runs: &[FontRun]) -> LineLayout;
}
pub(crate) struct NoopTextSystem;
impl NoopTextSystem {
#[allow(dead_code)]
pub fn new() -> Self {
Self
}
}
impl PlatformTextSystem for NoopTextSystem {
fn add_fonts(&self, _fonts: Vec<Cow<'static, [u8]>>) -> Result<()> {
Ok(())
}
fn all_font_names(&self) -> Vec<String> {
Vec::new()
}
fn font_id(&self, descriptor: &Font) -> Result<FontId> {
Err(anyhow!("No font found for {:?}", descriptor))
}
fn font_metrics(&self, _font_id: FontId) -> FontMetrics {
unimplemented!()
}
fn typographic_bounds(&self, font_id: FontId, _glyph_id: GlyphId) -> Result<Bounds<f32>> {
Err(anyhow!("No font found for {:?}", font_id))
}
fn advance(&self, font_id: FontId, _glyph_id: GlyphId) -> Result<Size<f32>> {
Err(anyhow!("No font found for {:?}", font_id))
}
fn glyph_for_char(&self, _font_id: FontId, _ch: char) -> Option<GlyphId> {
None
}
fn glyph_raster_bounds(&self, params: &RenderGlyphParams) -> Result<Bounds<DevicePixels>> {
Err(anyhow!("No font found for {:?}", params))
}
fn rasterize_glyph(
&self,
params: &RenderGlyphParams,
_raster_bounds: Bounds<DevicePixels>,
) -> Result<(Size<DevicePixels>, Vec<u8>)> {
Err(anyhow!("No font found for {:?}", params))
}
fn layout_line(&self, _text: &str, _font_size: Pixels, _runs: &[FontRun]) -> LineLayout {
unimplemented!()
}
}
#[derive(PartialEq, Eq, Hash, Clone)]
pub(crate) enum AtlasKey {
Glyph(RenderGlyphParams),
Svg(RenderSvgParams),
Image(RenderImageParams),
}
impl AtlasKey {
#[cfg_attr(
all(
any(target_os = "linux", target_os = "freebsd"),
not(any(feature = "x11", feature = "wayland"))
),
allow(dead_code)
)]
pub(crate) fn texture_kind(&self) -> AtlasTextureKind {
match self {
AtlasKey::Glyph(params) => {
if params.is_emoji {
AtlasTextureKind::Polychrome
} else {
AtlasTextureKind::Monochrome
}
}
AtlasKey::Svg(_) => AtlasTextureKind::Monochrome,
AtlasKey::Image(_) => AtlasTextureKind::Polychrome,
}
}
}
impl From<RenderGlyphParams> for AtlasKey {
fn from(params: RenderGlyphParams) -> Self {
Self::Glyph(params)
}
}
impl From<RenderSvgParams> for AtlasKey {
fn from(params: RenderSvgParams) -> Self {
Self::Svg(params)
}
}
impl From<RenderImageParams> for AtlasKey {
fn from(params: RenderImageParams) -> Self {
Self::Image(params)
}
}
pub(crate) trait PlatformAtlas: Send + Sync {
fn get_or_insert_with<'a>(
&self,
key: &AtlasKey,
build: &mut dyn FnMut() -> Result<Option<(Size<DevicePixels>, Cow<'a, [u8]>)>>,
) -> Result<Option<AtlasTile>>;
fn remove(&self, key: &AtlasKey);
}
struct AtlasTextureList<T> {
textures: Vec<Option<T>>,
free_list: Vec<usize>,
}
impl<T> Default for AtlasTextureList<T> {
fn default() -> Self {
Self {
textures: Vec::default(),
free_list: Vec::default(),
}
}
}
impl<T> ops::Index<usize> for AtlasTextureList<T> {
type Output = Option<T>;
fn index(&self, index: usize) -> &Self::Output {
&self.textures[index]
}
}
impl<T> AtlasTextureList<T> {
#[allow(unused)]
fn drain(&mut self) -> std::vec::Drain<Option<T>> {
self.free_list.clear();
self.textures.drain(..)
}
#[allow(dead_code)]
fn iter_mut(&mut self) -> impl DoubleEndedIterator<Item = &mut T> {
self.textures.iter_mut().flatten()
}
}
#[derive(Clone, Debug, PartialEq, Eq)]
#[repr(C)]
pub(crate) struct AtlasTile {
pub(crate) texture_id: AtlasTextureId,
pub(crate) tile_id: TileId,
pub(crate) padding: u32,
pub(crate) bounds: Bounds<DevicePixels>,
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
#[repr(C)]
pub(crate) struct AtlasTextureId {
// We use u32 instead of usize for Metal Shader Language compatibility
pub(crate) index: u32,
pub(crate) kind: AtlasTextureKind,
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
#[repr(C)]
#[cfg_attr(
all(
any(target_os = "linux", target_os = "freebsd"),
not(any(feature = "x11", feature = "wayland"))
),
allow(dead_code)
)]
pub(crate) enum AtlasTextureKind {
Monochrome = 0,
Polychrome = 1,
Path = 2,
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
#[repr(C)]
pub(crate) struct TileId(pub(crate) u32);
impl From<etagere::AllocId> for TileId {
fn from(id: etagere::AllocId) -> Self {
Self(id.serialize())
}
}
impl From<TileId> for etagere::AllocId {
fn from(id: TileId) -> Self {
Self::deserialize(id.0)
}
}
pub(crate) struct PlatformInputHandler {
cx: AsyncWindowContext,
handler: Box<dyn InputHandler>,
}
#[cfg_attr(
all(
any(target_os = "linux", target_os = "freebsd"),
not(any(feature = "x11", feature = "wayland"))
),
allow(dead_code)
)]
impl PlatformInputHandler {
pub fn new(cx: AsyncWindowContext, handler: Box<dyn InputHandler>) -> Self {
Self { cx, handler }
}
fn selected_text_range(&mut self, ignore_disabled_input: bool) -> Option<UTF16Selection> {
self.cx
.update(|window, cx| {
self.handler
.selected_text_range(ignore_disabled_input, window, cx)
})
.ok()
.flatten()
}
fn marked_text_range(&mut self) -> Option<Range<usize>> {
self.cx
.update(|window, cx| self.handler.marked_text_range(window, cx))
.ok()
.flatten()
}
#[cfg_attr(any(target_os = "linux", target_os = "freebsd"), allow(dead_code))]
fn text_for_range(
&mut self,
range_utf16: Range<usize>,
adjusted: &mut Option<Range<usize>>,
) -> Option<String> {
self.cx
.update(|window, cx| {
self.handler
.text_for_range(range_utf16, adjusted, window, cx)
})
.ok()
.flatten()
}
fn replace_text_in_range(&mut self, replacement_range: Option<Range<usize>>, text: &str) {
self.cx
.update(|window, cx| {
self.handler
.replace_text_in_range(replacement_range, text, window, cx);
})
.ok();
}
fn replace_and_mark_text_in_range(
&mut self,
range_utf16: Option<Range<usize>>,
new_text: &str,
new_selected_range: Option<Range<usize>>,
) {
self.cx
.update(|window, cx| {
self.handler.replace_and_mark_text_in_range(
range_utf16,
new_text,
new_selected_range,
window,
cx,
)
})
.ok();
}
fn unmark_text(&mut self) {
self.cx
.update(|window, cx| self.handler.unmark_text(window, cx))
.ok();
}
fn bounds_for_range(&mut self, range_utf16: Range<usize>) -> Option<Bounds<Pixels>> {
self.cx
.update(|window, cx| self.handler.bounds_for_range(range_utf16, window, cx))
.ok()
.flatten()
}
#[allow(dead_code)]
fn apple_press_and_hold_enabled(&mut self) -> bool {
self.handler.apple_press_and_hold_enabled()
}
pub(crate) fn dispatch_input(&mut self, input: &str, window: &mut Window, cx: &mut App) {
self.handler.replace_text_in_range(None, input, window, cx);
}
pub fn selected_bounds(&mut self, window: &mut Window, cx: &mut App) -> Option<Bounds<Pixels>> {
let selection = self.handler.selected_text_range(true, window, cx)?;
self.handler.bounds_for_range(
if selection.reversed {
selection.range.start..selection.range.start
} else {
selection.range.end..selection.range.end
},
window,
cx,
)
}
#[allow(unused)]
pub fn character_index_for_point(&mut self, point: Point<Pixels>) -> Option<usize> {
self.cx
.update(|window, cx| self.handler.character_index_for_point(point, window, cx))
.ok()
.flatten()
}
}
/// A struct representing a selection in a text buffer, in UTF16 characters.
/// This is different from a range because the head may be before the tail.
#[derive(Debug)]
pub struct UTF16Selection {
/// The range of text in the document this selection corresponds to
/// in UTF16 characters.
pub range: Range<usize>,
/// Whether the head of this selection is at the start (true), or end (false)
/// of the range
pub reversed: bool,
}
/// Zed's interface for handling text input from the platform's IME system
/// This is currently a 1:1 exposure of the NSTextInputClient API:
///
/// <https://developer.apple.com/documentation/appkit/nstextinputclient>
pub trait InputHandler: 'static {
/// Get the range of the user's currently selected text, if any
/// Corresponds to [selectedRange()](https://developer.apple.com/documentation/appkit/nstextinputclient/1438242-selectedrange)
///
/// Return value is in terms of UTF-16 characters, from 0 to the length of the document
fn selected_text_range(
&mut self,
ignore_disabled_input: bool,
window: &mut Window,
cx: &mut App,
) -> Option<UTF16Selection>;
/// Get the range of the currently marked text, if any
/// Corresponds to [markedRange()](https://developer.apple.com/documentation/appkit/nstextinputclient/1438250-markedrange)
///
/// Return value is in terms of UTF-16 characters, from 0 to the length of the document
fn marked_text_range(&mut self, window: &mut Window, cx: &mut App) -> Option<Range<usize>>;
/// Get the text for the given document range in UTF-16 characters
/// Corresponds to [attributedSubstring(forProposedRange: actualRange:)](https://developer.apple.com/documentation/appkit/nstextinputclient/1438238-attributedsubstring)
///
/// range_utf16 is in terms of UTF-16 characters
fn text_for_range(
&mut self,
range_utf16: Range<usize>,
adjusted_range: &mut Option<Range<usize>>,
window: &mut Window,
cx: &mut App,
) -> Option<String>;
/// Replace the text in the given document range with the given text
/// Corresponds to [insertText(_:replacementRange:)](https://developer.apple.com/documentation/appkit/nstextinputclient/1438258-inserttext)
///
/// replacement_range is in terms of UTF-16 characters
fn replace_text_in_range(
&mut self,
replacement_range: Option<Range<usize>>,
text: &str,
window: &mut Window,
cx: &mut App,
);
/// Replace the text in the given document range with the given text,
/// and mark the given text as part of an IME 'composing' state
/// Corresponds to [setMarkedText(_:selectedRange:replacementRange:)](https://developer.apple.com/documentation/appkit/nstextinputclient/1438246-setmarkedtext)
///
/// range_utf16 is in terms of UTF-16 characters
/// new_selected_range is in terms of UTF-16 characters
fn replace_and_mark_text_in_range(
&mut self,
range_utf16: Option<Range<usize>>,
new_text: &str,
new_selected_range: Option<Range<usize>>,
window: &mut Window,
cx: &mut App,
);
/// Remove the IME 'composing' state from the document
/// Corresponds to [unmarkText()](https://developer.apple.com/documentation/appkit/nstextinputclient/1438239-unmarktext)
fn unmark_text(&mut self, window: &mut Window, cx: &mut App);
/// Get the bounds of the given document range in screen coordinates
/// Corresponds to [firstRect(forCharacterRange:actualRange:)](https://developer.apple.com/documentation/appkit/nstextinputclient/1438240-firstrect)
///
/// This is used for positioning the IME candidate window
fn bounds_for_range(
&mut self,
range_utf16: Range<usize>,
window: &mut Window,
cx: &mut App,
) -> Option<Bounds<Pixels>>;
/// Get the character offset for the given point in terms of UTF16 characters
///
/// Corresponds to [characterIndexForPoint:](https://developer.apple.com/documentation/appkit/nstextinputclient/characterindex(for:))
fn character_index_for_point(
&mut self,
point: Point<Pixels>,
window: &mut Window,
cx: &mut App,
) -> Option<usize>;
/// Allows a given input context to opt into getting raw key repeats instead of
/// sending these to the platform.
/// TODO: Ideally we should be able to set ApplePressAndHoldEnabled in NSUserDefaults
/// (which is how iTerm does it) but it doesn't seem to work for me.
#[allow(dead_code)]
fn apple_press_and_hold_enabled(&mut self) -> bool {
true
}
}
/// The variables that can be configured when creating a new window
#[derive(Debug)]
pub struct WindowOptions {
/// Specifies the state and bounds of the window in screen coordinates.
/// - `None`: Inherit the bounds.
/// - `Some(WindowBounds)`: Open a window with corresponding state and its restore size.
pub window_bounds: Option<WindowBounds>,
/// The titlebar configuration of the window
pub titlebar: Option<TitlebarOptions>,
/// Whether the window should be focused when created
pub focus: bool,
/// Whether the window should be shown when created
pub show: bool,
/// The kind of window to create
pub kind: WindowKind,
/// Whether the window should be movable by the user
pub is_movable: bool,
/// The display to create the window on, if this is None,
/// the window will be created on the main display
pub display_id: Option<DisplayId>,
/// The appearance of the window background.
pub window_background: WindowBackgroundAppearance,
/// Application identifier of the window. Can by used by desktop environments to group applications together.
pub app_id: Option<String>,
/// Window minimum size
pub window_min_size: Option<Size<Pixels>>,
/// Whether to use client or server side decorations. Wayland only
/// Note that this may be ignored.
pub window_decorations: Option<WindowDecorations>,
}
/// The variables that can be configured when creating a new window
#[derive(Debug)]
#[cfg_attr(
all(
any(target_os = "linux", target_os = "freebsd"),
not(any(feature = "x11", feature = "wayland"))
),
allow(dead_code)
)]
pub(crate) struct WindowParams {
pub bounds: Bounds<Pixels>,
/// The titlebar configuration of the window
#[cfg_attr(feature = "wayland", allow(dead_code))]
pub titlebar: Option<TitlebarOptions>,
/// The kind of window to create
#[cfg_attr(any(target_os = "linux", target_os = "freebsd"), allow(dead_code))]
pub kind: WindowKind,
/// Whether the window should be movable by the user
#[cfg_attr(any(target_os = "linux", target_os = "freebsd"), allow(dead_code))]
pub is_movable: bool,
#[cfg_attr(any(target_os = "linux", target_os = "freebsd"), allow(dead_code))]
pub focus: bool,
#[cfg_attr(any(target_os = "linux", target_os = "freebsd"), allow(dead_code))]
pub show: bool,
#[cfg_attr(feature = "wayland", allow(dead_code))]
pub display_id: Option<DisplayId>,
pub window_min_size: Option<Size<Pixels>>,
}
/// Represents the status of how a window should be opened.
#[derive(Debug, Copy, Clone, PartialEq)]
pub enum WindowBounds {
/// Indicates that the window should open in a windowed state with the given bounds.
Windowed(Bounds<Pixels>),
/// Indicates that the window should open in a maximized state.
/// The bounds provided here represent the restore size of the window.
Maximized(Bounds<Pixels>),
/// Indicates that the window should open in fullscreen mode.
/// The bounds provided here represent the restore size of the window.
Fullscreen(Bounds<Pixels>),
}
impl Default for WindowBounds {
fn default() -> Self {
WindowBounds::Windowed(Bounds::default())
}
}
impl WindowBounds {
/// Retrieve the inner bounds
pub fn get_bounds(&self) -> Bounds<Pixels> {
match self {
WindowBounds::Windowed(bounds) => *bounds,
WindowBounds::Maximized(bounds) => *bounds,
WindowBounds::Fullscreen(bounds) => *bounds,
}
}
}
impl Default for WindowOptions {
fn default() -> Self {
Self {
window_bounds: None,
titlebar: Some(TitlebarOptions {
title: Default::default(),
appears_transparent: Default::default(),
traffic_light_position: Default::default(),
}),
focus: true,
show: true,
kind: WindowKind::Normal,
is_movable: true,
display_id: None,
window_background: WindowBackgroundAppearance::default(),
app_id: None,
window_min_size: None,
window_decorations: None,
}
}
}
/// The options that can be configured for a window's titlebar
#[derive(Debug, Default)]
pub struct TitlebarOptions {
/// The initial title of the window
pub title: Option<SharedString>,
/// Should the default system titlebar be hidden to allow for a custom-drawn titlebar? (macOS and Windows only)
/// Refer to [`WindowOptions::window_decorations`] on Linux
pub appears_transparent: bool,
/// The position of the macOS traffic light buttons
pub traffic_light_position: Option<Point<Pixels>>,
}
/// The kind of window to create
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub enum WindowKind {
/// A normal application window
Normal,
/// A window that appears above all other windows, usually used for alerts or popups
/// use sparingly!
PopUp,
}
/// The appearance of the window, as defined by the operating system.
///
/// On macOS, this corresponds to named [`NSAppearance`](https://developer.apple.com/documentation/appkit/nsappearance)
/// values.
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub enum WindowAppearance {
/// A light appearance.
///
/// On macOS, this corresponds to the `aqua` appearance.
Light,
/// A light appearance with vibrant colors.
///
/// On macOS, this corresponds to the `NSAppearanceNameVibrantLight` appearance.
VibrantLight,
/// A dark appearance.
///
/// On macOS, this corresponds to the `darkAqua` appearance.
Dark,
/// A dark appearance with vibrant colors.
///
/// On macOS, this corresponds to the `NSAppearanceNameVibrantDark` appearance.
VibrantDark,
}
impl Default for WindowAppearance {
fn default() -> Self {
Self::Light
}
}
/// The appearance of the background of the window itself, when there is
/// no content or the content is transparent.
#[derive(Copy, Clone, Debug, Default, PartialEq)]
pub enum WindowBackgroundAppearance {
/// Opaque.
///
/// This lets the window manager know that content behind this
/// window does not need to be drawn.
///
/// Actual color depends on the system and themes should define a fully
/// opaque background color instead.
#[default]
Opaque,
/// Plain alpha transparency.
Transparent,
/// Transparency, but the contents behind the window are blurred.
///
/// Not always supported.
Blurred,
}
/// The options that can be configured for a file dialog prompt
#[derive(Copy, Clone, Debug)]
pub struct PathPromptOptions {
/// Should the prompt allow files to be selected?
pub files: bool,
/// Should the prompt allow directories to be selected?
pub directories: bool,
/// Should the prompt allow multiple files to be selected?
pub multiple: bool,
}
/// What kind of prompt styling to show
#[derive(Copy, Clone, Debug, PartialEq)]
pub enum PromptLevel {
/// A prompt that is shown when the user should be notified of something
Info,
/// A prompt that is shown when the user needs to be warned of a potential problem
Warning,
/// A prompt that is shown when a critical problem has occurred
Critical,
}
/// The style of the cursor (pointer)
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
pub enum CursorStyle {
/// The default cursor
Arrow,
/// A text input cursor
/// corresponds to the CSS cursor value `text`
IBeam,
/// A crosshair cursor
/// corresponds to the CSS cursor value `crosshair`
Crosshair,
/// A closed hand cursor
/// corresponds to the CSS cursor value `grabbing`
ClosedHand,
/// An open hand cursor
/// corresponds to the CSS cursor value `grab`
OpenHand,
/// A pointing hand cursor
/// corresponds to the CSS cursor value `pointer`
PointingHand,
/// A resize left cursor
/// corresponds to the CSS cursor value `w-resize`
ResizeLeft,
/// A resize right cursor
/// corresponds to the CSS cursor value `e-resize`
ResizeRight,
/// A resize cursor to the left and right
/// corresponds to the CSS cursor value `ew-resize`
ResizeLeftRight,
/// A resize up cursor
/// corresponds to the CSS cursor value `n-resize`
ResizeUp,
/// A resize down cursor
/// corresponds to the CSS cursor value `s-resize`
ResizeDown,
/// A resize cursor directing up and down
/// corresponds to the CSS cursor value `ns-resize`
ResizeUpDown,
/// A resize cursor directing up-left and down-right
/// corresponds to the CSS cursor value `nesw-resize`
ResizeUpLeftDownRight,
/// A resize cursor directing up-right and down-left
/// corresponds to the CSS cursor value `nwse-resize`
ResizeUpRightDownLeft,
/// A cursor indicating that the item/column can be resized horizontally.
/// corresponds to the CSS cursor value `col-resize`
ResizeColumn,
/// A cursor indicating that the item/row can be resized vertically.
/// corresponds to the CSS cursor value `row-resize`
ResizeRow,
/// A text input cursor for vertical layout
/// corresponds to the CSS cursor value `vertical-text`
IBeamCursorForVerticalLayout,
/// A cursor indicating that the operation is not allowed
/// corresponds to the CSS cursor value `not-allowed`
OperationNotAllowed,
/// A cursor indicating that the operation will result in a link
/// corresponds to the CSS cursor value `alias`
DragLink,
/// A cursor indicating that the operation will result in a copy
/// corresponds to the CSS cursor value `copy`
DragCopy,
/// A cursor indicating that the operation will result in a context menu
/// corresponds to the CSS cursor value `context-menu`
ContextualMenu,
/// Hide the cursor
None,
}
impl Default for CursorStyle {
fn default() -> Self {
Self::Arrow
}
}
/// A clipboard item that should be copied to the clipboard
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct ClipboardItem {
entries: Vec<ClipboardEntry>,
}
/// Either a ClipboardString or a ClipboardImage
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum ClipboardEntry {
/// A string entry
String(ClipboardString),
/// An image entry
Image(Image),
}
impl ClipboardItem {
/// Create a new ClipboardItem::String with no associated metadata
pub fn new_string(text: String) -> Self {
Self {
entries: vec![ClipboardEntry::String(ClipboardString::new(text))],
}
}
/// Create a new ClipboardItem::String with the given text and associated metadata
pub fn new_string_with_metadata(text: String, metadata: String) -> Self {
Self {
entries: vec![ClipboardEntry::String(ClipboardString {
text,
metadata: Some(metadata),
})],
}
}
/// Create a new ClipboardItem::String with the given text and associated metadata
pub fn new_string_with_json_metadata<T: Serialize>(text: String, metadata: T) -> Self {
Self {
entries: vec![ClipboardEntry::String(
ClipboardString::new(text).with_json_metadata(metadata),
)],
}
}
/// Create a new ClipboardItem::Image with the given image with no associated metadata
pub fn new_image(image: &Image) -> Self {
Self {
entries: vec![ClipboardEntry::Image(image.clone())],
}
}
/// Concatenates together all the ClipboardString entries in the item.
/// Returns None if there were no ClipboardString entries.
pub fn text(&self) -> Option<String> {
let mut answer = String::new();
let mut any_entries = false;
for entry in self.entries.iter() {
if let ClipboardEntry::String(ClipboardString { text, metadata: _ }) = entry {
answer.push_str(&text);
any_entries = true;
}
}
if any_entries { Some(answer) } else { None }
}
/// If this item is one ClipboardEntry::String, returns its metadata.
#[cfg_attr(not(target_os = "windows"), allow(dead_code))]
pub fn metadata(&self) -> Option<&String> {
match self.entries().first() {
Some(ClipboardEntry::String(clipboard_string)) if self.entries.len() == 1 => {
clipboard_string.metadata.as_ref()
}
_ => None,
}
}
/// Get the item's entries
pub fn entries(&self) -> &[ClipboardEntry] {
&self.entries
}
/// Get owned versions of the item's entries
pub fn into_entries(self) -> impl Iterator<Item = ClipboardEntry> {
self.entries.into_iter()
}
}
impl From<ClipboardString> for ClipboardEntry {
fn from(value: ClipboardString) -> Self {
Self::String(value)
}
}
impl From<String> for ClipboardEntry {
fn from(value: String) -> Self {
Self::from(ClipboardString::from(value))
}
}
impl From<Image> for ClipboardEntry {
fn from(value: Image) -> Self {
Self::Image(value)
}
}
impl From<ClipboardEntry> for ClipboardItem {
fn from(value: ClipboardEntry) -> Self {
Self {
entries: vec![value],
}
}
}
impl From<String> for ClipboardItem {
fn from(value: String) -> Self {
Self::from(ClipboardEntry::from(value))
}
}
impl From<Image> for ClipboardItem {
fn from(value: Image) -> Self {
Self::from(ClipboardEntry::from(value))
}
}
/// One of the editor's supported image formats (e.g. PNG, JPEG) - used when dealing with images in the clipboard
#[derive(Clone, Copy, Debug, Eq, PartialEq, EnumIter, Hash)]
pub enum ImageFormat {
// Sorted from most to least likely to be pasted into an editor,
// which matters when we iterate through them trying to see if
// clipboard content matches them.
/// .png
Png,
/// .jpeg or .jpg
Jpeg,
/// .webp
Webp,
/// .gif
Gif,
/// .svg
Svg,
/// .bmp
Bmp,
/// .tif or .tiff
Tiff,
}
/// An image, with a format and certain bytes
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct Image {
/// The image format the bytes represent (e.g. PNG)
pub format: ImageFormat,
/// The raw image bytes
pub bytes: Vec<u8>,
/// The unique ID for the image
pub id: u64,
}
impl Hash for Image {
fn hash<H: Hasher>(&self, state: &mut H) {
state.write_u64(self.id);
}
}
impl Image {
/// Get this image's ID
pub fn id(&self) -> u64 {
self.id
}
/// Use the GPUI `use_asset` API to make this image renderable
pub fn use_render_image(
self: Arc<Self>,
window: &mut Window,
cx: &mut App,
) -> Option<Arc<RenderImage>> {
ImageSource::Image(self)
.use_data(window, cx)
.and_then(|result| result.ok())
}
/// Convert the clipboard image to an `ImageData` object.
pub fn to_image_data(&self, svg_renderer: SvgRenderer) -> Result<Arc<RenderImage>> {
fn frames_for_image(
bytes: &[u8],
format: image::ImageFormat,
) -> Result<SmallVec<[Frame; 1]>> {
let mut data = image::load_from_memory_with_format(bytes, format)?.into_rgba8();
// Convert from RGBA to BGRA.
for pixel in data.chunks_exact_mut(4) {
pixel.swap(0, 2);
}
Ok(SmallVec::from_elem(Frame::new(data), 1))
}
let frames = match self.format {
ImageFormat::Gif => {
let decoder = GifDecoder::new(Cursor::new(&self.bytes))?;
let mut frames = SmallVec::new();
for frame in decoder.into_frames() {
let mut frame = frame?;
// Convert from RGBA to BGRA.
for pixel in frame.buffer_mut().chunks_exact_mut(4) {
pixel.swap(0, 2);
}
frames.push(frame);
}
frames
}
ImageFormat::Png => frames_for_image(&self.bytes, image::ImageFormat::Png)?,
ImageFormat::Jpeg => frames_for_image(&self.bytes, image::ImageFormat::Jpeg)?,
ImageFormat::Webp => frames_for_image(&self.bytes, image::ImageFormat::WebP)?,
ImageFormat::Bmp => frames_for_image(&self.bytes, image::ImageFormat::Bmp)?,
ImageFormat::Tiff => frames_for_image(&self.bytes, image::ImageFormat::Tiff)?,
ImageFormat::Svg => {
let pixmap = svg_renderer.render_pixmap(&self.bytes, SvgSize::ScaleFactor(1.0))?;
let buffer =
image::ImageBuffer::from_raw(pixmap.width(), pixmap.height(), pixmap.take())
.unwrap();
SmallVec::from_elem(Frame::new(buffer), 1)
}
};
Ok(Arc::new(RenderImage::new(frames)))
}
/// Get the format of the clipboard image
pub fn format(&self) -> ImageFormat {
self.format
}
/// Get the raw bytes of the clipboard image
pub fn bytes(&self) -> &[u8] {
self.bytes.as_slice()
}
}
/// A clipboard item that should be copied to the clipboard
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct ClipboardString {
pub(crate) text: String,
pub(crate) metadata: Option<String>,
}
impl ClipboardString {
/// Create a new clipboard string with the given text
pub fn new(text: String) -> Self {
Self {
text,
metadata: None,
}
}
/// Return a new clipboard item with the metadata replaced by the given metadata,
/// after serializing it as JSON.
pub fn with_json_metadata<T: Serialize>(mut self, metadata: T) -> Self {
self.metadata = Some(serde_json::to_string(&metadata).unwrap());
self
}
/// Get the text of the clipboard string
pub fn text(&self) -> &String {
&self.text
}
/// Get the owned text of the clipboard string
pub fn into_text(self) -> String {
self.text
}
/// Get the metadata of the clipboard string, formatted as JSON
pub fn metadata_json<T>(&self) -> Option<T>
where
T: for<'a> Deserialize<'a>,
{
self.metadata
.as_ref()
.and_then(|m| serde_json::from_str(m).ok())
}
#[cfg_attr(any(target_os = "linux", target_os = "freebsd"), allow(dead_code))]
pub(crate) fn text_hash(text: &str) -> u64 {
let mut hasher = SeaHasher::new();
text.hash(&mut hasher);
hasher.finish()
}
}
impl From<String> for ClipboardString {
fn from(value: String) -> Self {
Self {
text: value,
metadata: None,
}
}
}