components/autofill/content/renderer/page_form_analyser_logger.cc

// Copyright 2017 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 "components/autofill/content/renderer/page_form_analyser_logger.h"

#include <utility>

#include "third_party/WebKit/public/platform/WebString.h"

namespace autofill {

struct PageFormAnalyserLogger::LogEntry {
  const std::string message;
  const std::vector<blink::WebNode> nodes;
};

PageFormAnalyserLogger::PageFormAnalyserLogger(blink::WebLocalFrame* frame)
    : frame_(frame) {}
PageFormAnalyserLogger::~PageFormAnalyserLogger() {}

void PageFormAnalyserLogger::Send(std::string message,
                                  ConsoleLevel level,
                                  blink::WebNode node) {
  Send(std::move(message), level, std::vector<blink::WebNode>{std::move(node)});
}

void PageFormAnalyserLogger::Send(std::string message,
                                  ConsoleLevel level,
                                  std::vector<blink::WebNode> nodes) {
  node_buffer_[level].push_back(LogEntry{std::move(message), std::move(nodes)});
}

void PageFormAnalyserLogger::Flush() {
  std::string text;
  for (ConsoleLevel level : {kError, kWarning, kVerbose}) {
    for (LogEntry& entry : node_buffer_[level]) {
      text.clear();
      text += "[DOM] ";
      text += entry.message;
      for (unsigned i = 0; i < entry.nodes.size(); ++i)
        text += " %o";

      blink::WebConsoleMessage message(level, blink::WebString::FromUTF8(text));
      message.nodes = std::move(entry.nodes);  // avoids copying node vectors.
      frame_->AddMessageToConsole(message);
    }
  }
  node_buffer_.clear();
}

}  // namespace autofill