Piotr OsiewiczandZed Zippy
778ce2e8e0
This will allow us to use UI crate on the web Self-Review Checklist: - [ ] I've reviewed my own diff for quality, security, and reliability - [ ] Unsafe blocks (if any) have justifying comments - [ ] The content is consistent with the [UI/UX checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) - [ ] Tests cover the new/changed behavior - [ ] Performance impact has been considered and is acceptable Closes #ISSUE Release Notes: - N/A --------- Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
44 lines
1.6 KiB
Rust
44 lines
1.6 KiB
Rust
use gpui::{App, Font, Global, Pixels};
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use crate::UiDensity;
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/// Trait for providing theme-related settings (fonts, font sizes, UI density)
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/// without coupling to the concrete settings infrastructure.
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///
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/// A concrete implementation is registered as a global by the `theme_settings` crate.
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pub trait ThemeSettingsProvider: Send + Sync + 'static {
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/// Returns the font used for UI elements.
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fn ui_font<'a>(&'a self, cx: &'a App) -> &'a Font;
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/// Returns the font used for buffers and the terminal.
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fn buffer_font<'a>(&'a self, cx: &'a App) -> &'a Font;
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/// Returns the UI font size in pixels.
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fn ui_font_size(&self, cx: &App) -> Pixels;
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/// Returns the buffer font size in pixels.
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fn buffer_font_size(&self, cx: &App) -> Pixels;
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/// Returns the current UI density setting.
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fn ui_density(&self, cx: &App) -> UiDensity;
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}
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struct GlobalThemeSettingsProvider(Box<dyn ThemeSettingsProvider>);
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impl Global for GlobalThemeSettingsProvider {}
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/// Registers the global [`ThemeSettingsProvider`] implementation.
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///
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/// This should be called during application initialization by the crate
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/// that owns the concrete theme settings (e.g. `theme_settings`).
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pub fn set_theme_settings_provider(provider: Box<dyn ThemeSettingsProvider>, cx: &mut App) {
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cx.set_global(GlobalThemeSettingsProvider(provider));
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}
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/// Returns the global [`ThemeSettingsProvider`].
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///
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/// Panics if no provider has been registered via [`set_theme_settings_provider`].
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pub fn theme_settings(cx: &App) -> &dyn ThemeSettingsProvider {
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&*cx.global::<GlobalThemeSettingsProvider>().0
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}
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