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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/screen_orientation/screen_orientation.h"
#include <memory>
#include "third_party/blink/public/common/screen_orientation/web_screen_orientation_type.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/dom_exception.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/modules/event_target_modules.h"
#include "third_party/blink/renderer/modules/screen_orientation/lock_orientation_callback.h"
#include "third_party/blink/renderer/modules/screen_orientation/screen_orientation_controller_impl.h"
#include "third_party/blink/renderer/platform/wtf/assertions.h"
// This code assumes that WebScreenOrientationType values are included in
// WebScreenOrientationLockType.
STATIC_ASSERT_ENUM(blink::kWebScreenOrientationPortraitPrimary,
blink::kWebScreenOrientationLockPortraitPrimary);
STATIC_ASSERT_ENUM(blink::kWebScreenOrientationPortraitSecondary,
blink::kWebScreenOrientationLockPortraitSecondary);
STATIC_ASSERT_ENUM(blink::kWebScreenOrientationLandscapePrimary,
blink::kWebScreenOrientationLockLandscapePrimary);
STATIC_ASSERT_ENUM(blink::kWebScreenOrientationLandscapeSecondary,
blink::kWebScreenOrientationLockLandscapeSecondary);
namespace blink {
struct ScreenOrientationInfo {
const AtomicString& name;
unsigned orientation;
};
static ScreenOrientationInfo* OrientationsMap(unsigned& length) {
DEFINE_STATIC_LOCAL(const AtomicString, portrait_primary,
("portrait-primary"));
DEFINE_STATIC_LOCAL(const AtomicString, portrait_secondary,
("portrait-secondary"));
DEFINE_STATIC_LOCAL(const AtomicString, landscape_primary,
("landscape-primary"));
DEFINE_STATIC_LOCAL(const AtomicString, landscape_secondary,
("landscape-secondary"));
DEFINE_STATIC_LOCAL(const AtomicString, any, ("any"));
DEFINE_STATIC_LOCAL(const AtomicString, portrait, ("portrait"));
DEFINE_STATIC_LOCAL(const AtomicString, landscape, ("landscape"));
DEFINE_STATIC_LOCAL(const AtomicString, natural, ("natural"));
static ScreenOrientationInfo orientation_map[] = {
{portrait_primary, kWebScreenOrientationLockPortraitPrimary},
{portrait_secondary, kWebScreenOrientationLockPortraitSecondary},
{landscape_primary, kWebScreenOrientationLockLandscapePrimary},
{landscape_secondary, kWebScreenOrientationLockLandscapeSecondary},
{any, kWebScreenOrientationLockAny},
{portrait, kWebScreenOrientationLockPortrait},
{landscape, kWebScreenOrientationLockLandscape},
{natural, kWebScreenOrientationLockNatural}};
length = arraysize(orientation_map);
return orientation_map;
}
const AtomicString& ScreenOrientation::OrientationTypeToString(
WebScreenOrientationType orientation) {
unsigned length = 0;
ScreenOrientationInfo* orientation_map = OrientationsMap(length);
for (unsigned i = 0; i < length; ++i) {
if (static_cast<unsigned>(orientation) == orientation_map[i].orientation)
return orientation_map[i].name;
}
NOTREACHED();
return g_null_atom;
}
static WebScreenOrientationLockType StringToOrientationLock(
const AtomicString& orientation_lock_string) {
unsigned length = 0;
ScreenOrientationInfo* orientation_map = OrientationsMap(length);
for (unsigned i = 0; i < length; ++i) {
if (orientation_map[i].name == orientation_lock_string)
return static_cast<WebScreenOrientationLockType>(
orientation_map[i].orientation);
}
NOTREACHED();
return kWebScreenOrientationLockDefault;
}
// static
ScreenOrientation* ScreenOrientation::Create(LocalFrame* frame) {
DCHECK(frame);
// Check if the ScreenOrientationController is supported for the
// frame. It will not be for all LocalFrames, or the frame may
// have been detached.
if (!ScreenOrientationControllerImpl::From(*frame))
return nullptr;
ScreenOrientation* orientation = new ScreenOrientation(frame);
DCHECK(orientation->Controller());
// FIXME: ideally, we would like to provide the ScreenOrientationController
// the case where it is not defined but for the moment, it is eagerly
// created when the LocalFrame is created so we shouldn't be in that
// situation.
// In order to create the ScreenOrientationController lazily, we would need
// to be able to access WebLocalFrameClient from modules/.
orientation->Controller()->SetOrientation(orientation);
return orientation;
}
ScreenOrientation::ScreenOrientation(LocalFrame* frame)
: ContextClient(frame), type_(kWebScreenOrientationUndefined), angle_(0) {}
ScreenOrientation::~ScreenOrientation() = default;
const WTF::AtomicString& ScreenOrientation::InterfaceName() const {
return EventTargetNames::ScreenOrientation;
}
ExecutionContext* ScreenOrientation::GetExecutionContext() const {
if (!GetFrame())
return nullptr;
return GetFrame()->GetDocument();
}
String ScreenOrientation::type() const {
return OrientationTypeToString(type_);
}
unsigned short ScreenOrientation::angle() const {
return angle_;
}
void ScreenOrientation::SetType(WebScreenOrientationType type) {
type_ = type;
}
void ScreenOrientation::SetAngle(unsigned short angle) {
angle_ = angle;
}
ScriptPromise ScreenOrientation::lock(ScriptState* state,
const AtomicString& lock_string) {
ScriptPromiseResolver* resolver = ScriptPromiseResolver::Create(state);
ScriptPromise promise = resolver->Promise();
Document* document = GetFrame() ? GetFrame()->GetDocument() : nullptr;
if (!document || !Controller()) {
DOMException* exception = DOMException::Create(
DOMExceptionCode::kInvalidStateError,
"The object is no longer associated to a document.");
resolver->Reject(exception);
return promise;
}
if (document->IsSandboxed(kSandboxOrientationLock)) {
DOMException* exception =
DOMException::Create(DOMExceptionCode::kSecurityError,
"The document is sandboxed and lacks the "
"'allow-orientation-lock' flag.");
resolver->Reject(exception);
return promise;
}
Controller()->lock(StringToOrientationLock(lock_string),
std::make_unique<LockOrientationCallback>(resolver));
return promise;
}
void ScreenOrientation::unlock() {
if (!Controller())
return;
Controller()->unlock();
}
ScreenOrientationControllerImpl* ScreenOrientation::Controller() {
if (!GetFrame())
return nullptr;
return ScreenOrientationControllerImpl::From(*GetFrame());
}
void ScreenOrientation::Trace(blink::Visitor* visitor) {
EventTargetWithInlineData::Trace(visitor);
ContextClient::Trace(visitor);
}
} // namespace blink
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