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// Copyright 2023 The Chromium Authors
// 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/content_extraction/inner_text_agent.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/modules/content_extraction/inner_text_builder.h"
namespace blink {
// static
const char InnerTextAgent::kSupplementName[] = "InnerTextAgent";
// static
InnerTextAgent* InnerTextAgent::From(Document& document) {
return Supplement<Document>::From<InnerTextAgent>(document);
}
// static
void InnerTextAgent::BindReceiver(
LocalFrame* frame,
mojo::PendingReceiver<mojom::blink::InnerTextAgent> receiver) {
DCHECK(frame && frame->GetDocument());
auto& document = *frame->GetDocument();
auto* agent = InnerTextAgent::From(document);
if (!agent) {
agent = MakeGarbageCollected<InnerTextAgent>(
base::PassKey<InnerTextAgent>(), *frame);
Supplement<Document>::ProvideTo(document, agent);
}
agent->Bind(std::move(receiver));
}
InnerTextAgent::InnerTextAgent(base::PassKey<InnerTextAgent>, LocalFrame& frame)
: Supplement<Document>(*frame.GetDocument()),
receiver_set_(this, frame.DomWindow()) {}
InnerTextAgent::~InnerTextAgent() = default;
void InnerTextAgent::Bind(
mojo::PendingReceiver<mojom::blink::InnerTextAgent> receiver) {
// Use `kInternalUserAction` as this task generally results in generating
// a response to the user.
receiver_set_.Add(
std::move(receiver),
GetSupplementable()->GetTaskRunner(TaskType::kInternalUserInteraction));
}
void InnerTextAgent::Trace(Visitor* visitor) const {
visitor->Trace(receiver_set_);
Supplement<Document>::Trace(visitor);
}
void InnerTextAgent::GetInnerText(mojom::blink::InnerTextParamsPtr params,
GetInnerTextCallback callback) {
LocalFrame* frame = GetSupplementable()->GetFrame();
if (!frame) {
std::move(callback).Run(nullptr);
return;
}
if (params->max_words_per_aggregate_passage.has_value() ||
params->greedily_aggregate_sibling_nodes.has_value()) {
std::move(callback).Run(InnerTextPassagesBuilder::Build(*frame, *params));
} else {
std::move(callback).Run(InnerTextBuilder::Build(*frame, *params));
}
}
} // namespace blink
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