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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/optimization_guide/content/browser/page_text_dump_result.h"
#include <algorithm>
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/to_string.h"
#include "base/strings/utf_string_conversions.h"
namespace optimization_guide {
namespace {
std::string TextDumpEventToString(mojom::TextDumpEvent value) {
switch (value) {
case mojom::TextDumpEvent::kFirstLayout:
return "kFirstLayout";
case mojom::TextDumpEvent::kFinishedLoad:
return "kFinishedLoad";
}
}
} // namespace
PageTextDumpResult::PageTextDumpResult() = default;
PageTextDumpResult::PageTextDumpResult(const PageTextDumpResult&) = default;
PageTextDumpResult::~PageTextDumpResult() = default;
void PageTextDumpResult::AddFrameTextDumpResult(
const FrameTextDumpResult& frame_result) {
DCHECK(frame_result.IsCompleted());
frame_results_.emplace(frame_result);
}
std::optional<std::string> PageTextDumpResult::GetAMPTextContent() const {
if (empty()) {
return std::nullopt;
}
// AMP frames are sorted in beginning, so if there are none then return null.
if (!frame_results_.begin()->amp_frame()) {
return std::nullopt;
}
std::vector<std::string> amp_text;
for (const FrameTextDumpResult& frame_result : frame_results_) {
DCHECK(frame_result.utf8_contents());
if (!frame_result.amp_frame()) {
break;
}
amp_text.push_back(*frame_result.utf8_contents());
}
DCHECK(!amp_text.empty());
return base::JoinString(amp_text, " ");
}
std::optional<std::string> PageTextDumpResult::GetMainFrameTextContent() const {
if (empty()) {
return std::nullopt;
}
// Mainframes are sorted to the end.
if (frame_results_.rbegin()->amp_frame()) {
return std::nullopt;
}
// There should only be one mainframe.
DCHECK(frame_results_.rbegin()->utf8_contents());
return *frame_results_.rbegin()->utf8_contents();
}
std::optional<std::string> PageTextDumpResult::GetAllFramesTextContent() const {
if (empty()) {
return std::nullopt;
}
std::vector<std::string> text;
for (const FrameTextDumpResult& frame_result : frame_results_) {
DCHECK(frame_result.utf8_contents());
text.push_back(*frame_result.utf8_contents());
}
DCHECK(!text.empty());
return base::JoinString(text, " ");
}
FrameTextDumpResult::FrameTextDumpResult() = default;
FrameTextDumpResult::~FrameTextDumpResult() = default;
FrameTextDumpResult::FrameTextDumpResult(const FrameTextDumpResult&) = default;
// static
FrameTextDumpResult FrameTextDumpResult::Initialize(
mojom::TextDumpEvent event,
content::GlobalRenderFrameHostId rfh_id,
bool amp_frame,
int unique_navigation_id) {
FrameTextDumpResult result;
result.event_ = event;
result.rfh_id_ = rfh_id;
result.amp_frame_ = amp_frame;
result.unique_navigation_id_ = unique_navigation_id;
return result;
}
FrameTextDumpResult FrameTextDumpResult::CompleteWithContents(
const std::u16string& contents) const {
DCHECK(!IsCompleted());
FrameTextDumpResult copy = *this;
// Always trim whitespace from |contents| because it can non-deterministically
// have trailing whitespace which makes testing and parsing harder.
copy.contents_ = contents;
base::TrimWhitespace(contents, base::TRIM_ALL, &(copy.contents_.value()));
return copy;
}
bool FrameTextDumpResult::IsCompleted() const {
return !!contents();
}
std::optional<std::string> FrameTextDumpResult::utf8_contents() const {
if (!contents_) {
return std::nullopt;
}
return base::UTF16ToUTF8(*contents_);
}
std::ostream& operator<<(std::ostream& os, const FrameTextDumpResult& frame) {
return os << base::StringPrintf(
"event:%s rfh_id:(%d,%d) amp_frame:%s unique_navigation_id:%d "
"contents:%s",
TextDumpEventToString(frame.event()).c_str(),
frame.rfh_id().child_id, frame.rfh_id().frame_routing_id,
base::ToString(frame.amp_frame()), frame.unique_navigation_id(),
frame.utf8_contents().value_or("null").c_str());
}
std::ostream& operator<<(std::ostream& os, const PageTextDumpResult& page) {
for (const FrameTextDumpResult& frame : page.frame_results()) {
os << frame << "\n";
}
return os;
}
} // namespace optimization_guide
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