gecko-dev/layout/style/PostTraversalTask.cpp
Andrew Osmond e134d17fa0 Bug 1771493 - Part 1. Split FontFace(Set) into DOM facing and implementation classes. r=emilio
This patch aims to split the implementation details of FontFace(Set)
into FontFace(Set)Impl classes. The Impl variants have threadsafe
refcounting and are intended to be the basis for worker support for
FontFace(Set). We need threadsafe objects to pass around because parts
of the stack can only run on the main thread (network loading of font
data, graphics initialization of a font) even if the FontFace(Set)
itself lives on a DOM worker thread. Given the DOM facing objects are
cycle collected, we need additional indirection to support this use
case.

This patch should be a non-functional change.

Differential Revision: https://phabricator.services.mozilla.com/D147505
2022-06-28 21:46:59 +00:00

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1.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "PostTraversalTask.h"
#include "mozilla/dom/FontFace.h"
#include "mozilla/dom/FontFaceSet.h"
#include "mozilla/dom/FontFaceSetImpl.h"
#include "gfxPlatformFontList.h"
#include "gfxTextRun.h"
#include "ServoStyleSet.h"
#include "nsPresContext.h"
namespace mozilla {
using namespace dom;
void PostTraversalTask::Run() {
switch (mType) {
case Type::ResolveFontFaceLoadedPromise:
static_cast<FontFace*>(mTarget)->MaybeResolve();
break;
case Type::RejectFontFaceLoadedPromise:
static_cast<FontFace*>(mTarget)->MaybeReject(mResult);
break;
case Type::DispatchLoadingEventAndReplaceReadyPromise:
static_cast<FontFaceSet*>(mTarget)
->DispatchLoadingEventAndReplaceReadyPromise();
break;
case Type::DispatchFontFaceSetCheckLoadingFinishedAfterDelay:
static_cast<FontFaceSetImpl*>(mTarget)
->DispatchCheckLoadingFinishedAfterDelay();
break;
case Type::LoadFontEntry:
static_cast<gfxUserFontEntry*>(mTarget)->ContinueLoad();
break;
case Type::InitializeFamily:
Unused << gfxPlatformFontList::PlatformFontList()->InitializeFamily(
static_cast<fontlist::Family*>(mTarget));
break;
case Type::FontInfoUpdate:
if (auto* pc = static_cast<ServoStyleSet*>(mTarget)->GetPresContext()) {
pc->ForceReflowForFontInfoUpdateFromStyle();
}
break;
}
}
} // namespace mozilla