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Pass a LayoutContext to TextRun::layout in 2020

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This commit is contained in:
Anthony Ramine 2019-11-12 12:30:03 +01:00
parent ea32495504
commit 1446756774
7 changed files with 94 additions and 23 deletions
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17
components/layout_2020/context.rs
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@ -3,7 +3,9 @@
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use gfx::font_cache_thread::FontCacheThread;
use gfx::font_context::FontContext;
use msg::constellation_msg::PipelineId;
use std::cell::{RefCell, RefMut};
use std::sync::Mutex;
use style::context::SharedStyleContext;
@ -19,3 +21,18 @@ impl<'a> LayoutContext<'a> {
&self.style_context
}
}
pub(crate) type LayoutFontContext = FontContext<FontCacheThread>;
thread_local!(static FONT_CONTEXT: RefCell<Option<LayoutFontContext>> = RefCell::new(None));
pub(crate) fn with_thread_local_font_context<F, R>(layout_context: &LayoutContext, f: F) -> R
where
F: FnOnce(&mut LayoutFontContext) -> R,
{
FONT_CONTEXT.with(|font_context| {
f(font_context.borrow_mut().get_or_insert_with(|| {
FontContext::new(layout_context.font_cache_thread.lock().unwrap().clone())
}))
})
}