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Bug 1768195 - Add an origin trial for OffscreenCanvas. r=aosmond

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Differential Revision: https://phabricator.services.mozilla.com/D145728
This commit is contained in:
Emilio Cobos Álvarez 2022-05-11 12:32:11 +00:00
parent 456d6d3458
commit 46b13a06fc
5 changed files with 23 additions and 3 deletions
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6
dom/canvas/CanvasUtils.cpp
View File

@ -290,11 +290,15 @@ bool HasDrawWindowPrivilege(JSContext* aCx, JSObject* /* unused */) {
nsGkAtoms::all_urlsPermission);
}
bool IsOffscreenCanvasEnabled(JSContext* aCx, JSObject* /* unused */) {
bool IsOffscreenCanvasEnabled(JSContext* aCx, JSObject* aObj) {
if (StaticPrefs::gfx_offscreencanvas_enabled()) {
return true;
}
if (OriginTrials::IsEnabled(aCx, aObj, OriginTrial::OffscreenCanvas)) {
return true;
}
if (!StaticPrefs::gfx_offscreencanvas_domain_enabled()) {
return false;
}

2
dom/origin-trials/OriginTrials.cpp
View File

@ -173,6 +173,8 @@ static int32_t PrefState(OriginTrial aTrial) {
switch (aTrial) {
case OriginTrial::TestTrial:
return StaticPrefs::dom_origin_trials_test_trial_state();
case OriginTrial::OffscreenCanvas:
return StaticPrefs::dom_origin_trials_offscreen_canvas_state();
case OriginTrial::MAX:
MOZ_ASSERT_UNREACHABLE("Unknown trial!");
break;

6
dom/origin-trials/ffi/lib.rs
View File

@ -9,16 +9,18 @@ use std::ffi::c_void;
pub enum OriginTrial {
// NOTE(emilio): 0 is reserved for WebIDL usage.
TestTrial = 1,
OffscreenCanvas = 2,
MAX,
}
impl OriginTrial {
fn from_str(s: &str) -> Option<Self> {
return Some(match s {
Some(match s {
"TestTrial" => Self::TestTrial,
"OffscreenCanvas" => Self::OffscreenCanvas,
_ => return None,
});
})
}
}

5
dom/origin-trials/tests/test_meta_simple.html
View File

@ -1,8 +1,13 @@
<!doctype html>
<!-- Created with: mktoken --origin 'https://example.com' --feature TestTrial --expiry 'Wed, 01 Jan 3000 01:00:00 +0100' --sign test-keys/test-ecdsa.pkcs8 -->
<meta http-equiv="origin-trial" content="AyGdETIKWLLqe+chG57f74gZcjYSfbdYAapEq7DA49E6CmaYaPmaoXh/4tAe5XJJJdwwpFVal7hz/irC+Wvp1HgAAABLeyJvcmlnaW4iOiJodHRwczovL2V4YW1wbGUuY29tIiwiZmVhdHVyZSI6IlRlc3RUcmlhbCIsImV4cGlyeSI6MzI1MDM2ODAwMDB9">
<!-- Created with: mktoken --origin 'https://example.com' --feature OffscreenCanvas --expiry 'Wed, 01 Jan 3000 01:00:00 +0100' --sign test-keys/test-ecdsa.pkcs8 -->
<meta http-equiv="origin-trial" content="Ay92n3CdO5VIYbmQB7t7r7e4c34nT1k9zbX5ON2JthrXaOFxLn5NieN7ITlKhPbmPSLA4qoS+TBdshqEUwmVaIwAAABReyJvcmlnaW4iOiJodHRwczovL2V4YW1wbGUuY29tIiwiZmVhdHVyZSI6Ik9mZnNjcmVlbkNhbnZhcyIsImV4cGlyeSI6MzI1MDM2ODAwMDB9">
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="common.js"></script>
<script>
assertTestTrialActive(true);
add_task(function() {
ok(!!self.OffscreenCanvas, "OffscreenCanvas trial works.");
});
</script>

7
modules/libpref/init/StaticPrefList.yaml
View File

@ -2856,6 +2856,13 @@
value: 0
mirror: always
# Origin trial state for OffscreenCanvas.
# 0: normal, 1: always-enabled, 2: always-disabled
- name: dom.origin-trials.offscreen-canvas.state
type: RelaxedAtomicInt32
value: 0
mirror: always
# Is support for Window.paintWorklet enabled?
- name: dom.paintWorklet.enabled
type: bool