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// Copyright 2018 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/keyboard/keyboard_layout.h"
#include "services/service_manager/public/cpp/interface_provider.h"
#include "third_party/blink/public/mojom/page/page_visibility_state.mojom-blink.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/core/dom/dom_exception.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
namespace blink {
namespace {
constexpr char kKeyboardMapFrameDetachedErrorMsg[] =
"Current frame is detached.";
constexpr char kKeyboardMapChildFrameErrorMsg[] =
"getLayoutMap() must be called from a top-level browsing context.";
constexpr char kKeyboardMapRequestFailedErrorMsg[] =
"getLayoutMap() request could not be completed.";
} // namespace
using mojom::PageVisibilityState;
KeyboardLayout::KeyboardLayout(ExecutionContext* context)
: ContextLifecycleObserver(context) {}
ScriptPromise KeyboardLayout::GetKeyboardLayoutMap(ScriptState* script_state) {
DCHECK(script_state);
if (script_promise_resolver_) {
return script_promise_resolver_->Promise();
}
if (!IsLocalFrameAttached()) {
return ScriptPromise::RejectWithDOMException(
script_state, DOMException::Create(DOMExceptionCode::kInvalidStateError,
kKeyboardMapFrameDetachedErrorMsg));
}
if (!CalledFromSupportedContext(ExecutionContext::From(script_state))) {
return ScriptPromise::RejectWithDOMException(
script_state, DOMException::Create(DOMExceptionCode::kInvalidStateError,
kKeyboardMapChildFrameErrorMsg));
}
if (!EnsureServiceConnected()) {
return ScriptPromise::RejectWithDOMException(
script_state, DOMException::Create(DOMExceptionCode::kInvalidStateError,
kKeyboardMapRequestFailedErrorMsg));
}
script_promise_resolver_ = ScriptPromiseResolver::Create(script_state);
service_->GetKeyboardLayoutMap(
WTF::Bind(&KeyboardLayout::GotKeyboardLayoutMap, WrapPersistent(this),
WrapPersistent(script_promise_resolver_.Get())));
return script_promise_resolver_->Promise();
}
bool KeyboardLayout::IsLocalFrameAttached() {
if (GetFrame())
return true;
return false;
}
bool KeyboardLayout::EnsureServiceConnected() {
if (!service_) {
LocalFrame* frame = GetFrame();
if (!frame) {
return false;
}
frame->GetInterfaceProvider().GetInterface(mojo::MakeRequest(&service_));
DCHECK(service_);
}
return true;
}
bool KeyboardLayout::CalledFromSupportedContext(ExecutionContext* context) {
DCHECK(context);
// This API is only accessible from a top level, secure browsing context.
LocalFrame* frame = GetFrame();
return frame && frame->IsMainFrame() && context->IsSecureContext();
}
void KeyboardLayout::GotKeyboardLayoutMap(
ScriptPromiseResolver* resolver,
mojom::blink::GetKeyboardLayoutMapResultPtr result) {
DCHECK(script_promise_resolver_);
switch (result->status) {
case mojom::blink::GetKeyboardLayoutMapStatus::kSuccess:
script_promise_resolver_->Resolve(
new KeyboardLayoutMap(result->layout_map));
break;
case mojom::blink::GetKeyboardLayoutMapStatus::kFail:
script_promise_resolver_->Reject(
DOMException::Create(DOMExceptionCode::kInvalidStateError,
kKeyboardMapRequestFailedErrorMsg));
break;
}
script_promise_resolver_ = nullptr;
}
void KeyboardLayout::Trace(blink::Visitor* visitor) {
visitor->Trace(script_promise_resolver_);
ContextLifecycleObserver::Trace(visitor);
}
} // namespace blink
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