Move all crates to a top-level crates folder

Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>

crates/gpui/src/platform.rs

@@ -0,0 +1,163 @@
+mod event;
+#[cfg(target_os = "macos")]
+pub mod mac;
+pub mod test;
+pub mod current {
+    #[cfg(target_os = "macos")]
+    pub use super::mac::*;
+}
+
+use crate::{
+    executor,
+    fonts::{FontId, GlyphId, Metrics as FontMetrics, Properties as FontProperties},
+    geometry::{
+        rect::{RectF, RectI},
+        vector::{vec2f, Vector2F},
+    },
+    text_layout::{LineLayout, RunStyle},
+    AnyAction, ClipboardItem, Menu, Scene,
+};
+use anyhow::Result;
+use async_task::Runnable;
+pub use event::Event;
+use std::{
+    any::Any,
+    path::{Path, PathBuf},
+    rc::Rc,
+    sync::Arc,
+};
+use time::UtcOffset;
+
+pub trait Platform: Send + Sync {
+    fn dispatcher(&self) -> Arc<dyn Dispatcher>;
+    fn fonts(&self) -> Arc<dyn FontSystem>;
+
+    fn activate(&self, ignoring_other_apps: bool);
+    fn open_window(
+        &self,
+        id: usize,
+        options: WindowOptions,
+        executor: Rc<executor::Foreground>,
+    ) -> Box<dyn Window>;
+    fn key_window_id(&self) -> Option<usize>;
+    fn quit(&self);
+
+    fn write_to_clipboard(&self, item: ClipboardItem);
+    fn read_from_clipboard(&self) -> Option<ClipboardItem>;
+    fn open_url(&self, url: &str);
+
+    fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Result<()>;
+    fn read_credentials(&self, url: &str) -> Result<Option<(String, Vec<u8>)>>;
+    fn delete_credentials(&self, url: &str) -> Result<()>;
+
+    fn set_cursor_style(&self, style: CursorStyle);
+
+    fn local_timezone(&self) -> UtcOffset;
+}
+
+pub(crate) trait ForegroundPlatform {
+    fn on_become_active(&self, callback: Box<dyn FnMut()>);
+    fn on_resign_active(&self, callback: Box<dyn FnMut()>);
+    fn on_event(&self, callback: Box<dyn FnMut(Event) -> bool>);
+    fn on_open_files(&self, callback: Box<dyn FnMut(Vec<PathBuf>)>);
+    fn run(&self, on_finish_launching: Box<dyn FnOnce() -> ()>);
+
+    fn on_menu_command(&self, callback: Box<dyn FnMut(&dyn AnyAction)>);
+    fn set_menus(&self, menus: Vec<Menu>);
+    fn prompt_for_paths(
+        &self,
+        options: PathPromptOptions,
+        done_fn: Box<dyn FnOnce(Option<Vec<std::path::PathBuf>>)>,
+    );
+    fn prompt_for_new_path(
+        &self,
+        directory: &Path,
+        done_fn: Box<dyn FnOnce(Option<std::path::PathBuf>)>,
+    );
+}
+
+pub trait Dispatcher: Send + Sync {
+    fn is_main_thread(&self) -> bool;
+    fn run_on_main_thread(&self, task: Runnable);
+}
+
+pub trait Window: WindowContext {
+    fn as_any_mut(&mut self) -> &mut dyn Any;
+    fn on_event(&mut self, callback: Box<dyn FnMut(Event)>);
+    fn on_resize(&mut self, callback: Box<dyn FnMut()>);
+    fn on_close(&mut self, callback: Box<dyn FnOnce()>);
+    fn prompt(
+        &self,
+        level: PromptLevel,
+        msg: &str,
+        answers: &[&str],
+        done_fn: Box<dyn FnOnce(usize)>,
+    );
+}
+
+pub trait WindowContext {
+    fn size(&self) -> Vector2F;
+    fn scale_factor(&self) -> f32;
+    fn titlebar_height(&self) -> f32;
+    fn present_scene(&mut self, scene: Scene);
+}
+
+pub struct WindowOptions<'a> {
+    pub bounds: RectF,
+    pub title: Option<&'a str>,
+    pub titlebar_appears_transparent: bool,
+    pub traffic_light_position: Option<Vector2F>,
+}
+
+pub struct PathPromptOptions {
+    pub files: bool,
+    pub directories: bool,
+    pub multiple: bool,
+}
+
+pub enum PromptLevel {
+    Info,
+    Warning,
+    Critical,
+}
+
+#[derive(Copy, Clone, Debug)]
+pub enum CursorStyle {
+    Arrow,
+    ResizeLeftRight,
+    PointingHand,
+}
+
+pub trait FontSystem: Send + Sync {
+    fn add_fonts(&self, fonts: &[Arc<Vec<u8>>]) -> anyhow::Result<()>;
+    fn load_family(&self, name: &str) -> anyhow::Result<Vec<FontId>>;
+    fn select_font(
+        &self,
+        font_ids: &[FontId],
+        properties: &FontProperties,
+    ) -> anyhow::Result<FontId>;
+    fn font_metrics(&self, font_id: FontId) -> FontMetrics;
+    fn typographic_bounds(&self, font_id: FontId, glyph_id: GlyphId) -> anyhow::Result<RectF>;
+    fn glyph_for_char(&self, font_id: FontId, ch: char) -> Option<GlyphId>;
+    fn rasterize_glyph(
+        &self,
+        font_id: FontId,
+        font_size: f32,
+        glyph_id: GlyphId,
+        subpixel_shift: Vector2F,
+        scale_factor: f32,
+    ) -> Option<(RectI, Vec<u8>)>;
+    fn layout_line(&self, text: &str, font_size: f32, runs: &[(usize, RunStyle)]) -> LineLayout;
+    fn wrap_line(&self, text: &str, font_id: FontId, font_size: f32, width: f32) -> Vec<usize>;
+}
+
+impl<'a> Default for WindowOptions<'a> {
+    fn default() -> Self {
+        Self {
+            bounds: RectF::new(Default::default(), vec2f(1024.0, 768.0)),
+            title: Default::default(),
+            titlebar_appears_transparent: Default::default(),
+            traffic_light_position: Default::default(),
+        }
+    }
+}