cef/libcef/browser/devtools_frontend.cc

// Copyright 2013 the Chromium Embedded Framework Authors. Portions Copyright
// 2012 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 "libcef/browser/devtools_frontend.h"

#include "libcef/browser/content_browser_client.h"
#include "libcef/browser/devtools_delegate.h"
#include "libcef/browser/request_context_impl.h"

#include "base/command_line.h"
#include "base/json/json_reader.h"
#include "base/path_service.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/browser/devtools_http_handler.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_client.h"
#include "net/base/net_util.h"
#include "third_party/skia/include/core/SkColor.h"

// static
CefDevToolsFrontend* CefDevToolsFrontend::Show(
    CefRefPtr<CefBrowserHostImpl> inspected_browser,
    const CefWindowInfo& windowInfo,
    CefRefPtr<CefClient> client,
    const CefBrowserSettings& settings) {
  CefBrowserSettings new_settings = settings;
  if (CefColorGetA(new_settings.background_color) == 0) {
    // Use white as the default background color for DevTools instead of the
    // CefSettings.background_color value.
    new_settings.background_color = SK_ColorWHITE;
  }

  CefRefPtr<CefBrowserHostImpl> frontend_browser =
      CefBrowserHostImpl::Create(windowInfo, client, CefString(),
                                 new_settings,
                                 inspected_browser->GetWindowHandle(), true,
                                 inspected_browser->GetRequestContext());

  // CefDevToolsFrontend will delete itself when the frontend WebContents is
  // destroyed.
  CefDevToolsFrontend* devtools_frontend = new CefDevToolsFrontend(
      static_cast<CefBrowserHostImpl*>(frontend_browser.get()),
      content::DevToolsAgentHost::GetOrCreateFor(
          inspected_browser->GetWebContents()).get());

  // Need to load the URL after creating the DevTools objects.
  CefDevToolsDelegate* delegate =
      CefContentBrowserClient::Get()->devtools_delegate();
  frontend_browser->GetMainFrame()->LoadURL(delegate->GetChromeDevToolsURL());

  devtools_frontend->Activate();
  devtools_frontend->Focus();

  return devtools_frontend;
}

void CefDevToolsFrontend::Activate() {
  frontend_browser_->ActivateContents(web_contents());
}

void CefDevToolsFrontend::Focus() {
  web_contents()->Focus();
}

void CefDevToolsFrontend::Close() {
  frontend_browser_->CloseBrowser(true);
}

CefDevToolsFrontend::CefDevToolsFrontend(
    CefRefPtr<CefBrowserHostImpl> frontend_browser,
    content::DevToolsAgentHost* agent_host)
    : WebContentsObserver(frontend_browser->GetWebContents()),
      frontend_browser_(frontend_browser),
      agent_host_(agent_host) {
}

CefDevToolsFrontend::~CefDevToolsFrontend() {
}

void CefDevToolsFrontend::RenderViewCreated(
    content::RenderViewHost* render_view_host) {
  if (!frontend_host_) {
    frontend_host_.reset(
        content::DevToolsFrontendHost::Create(render_view_host, this));
    agent_host_->AttachClient(this);
  }
}

void CefDevToolsFrontend::DocumentOnLoadCompletedInMainFrame() {
  web_contents()->GetMainFrame()->ExecuteJavaScript(
      base::ASCIIToUTF16("InspectorFrontendAPI.setUseSoftMenu(true);"));
}

void CefDevToolsFrontend::WebContentsDestroyed() {
  agent_host_->DetachClient();
  delete this;
}

void CefDevToolsFrontend::HandleMessageFromDevToolsFrontend(
    const std::string& message) {
  std::string method;
  std::string browser_message;
  int id = 0;

  base::ListValue* params = NULL;
  base::DictionaryValue* dict = NULL;
  scoped_ptr<base::Value> parsed_message(base::JSONReader::Read(message));
  if (!parsed_message ||
      !parsed_message->GetAsDictionary(&dict) ||
      !dict->GetString("method", &method) ||
      !dict->GetList("params", &params)) {
    return;
  }

  if (method != "sendMessageToBrowser" ||
      params->GetSize() != 1 ||
      !params->GetString(0, &browser_message)) {
    return;
  }
  dict->GetInteger("id", &id);

  agent_host_->DispatchProtocolMessage(browser_message);

  if (id) {
    std::string code = "InspectorFrontendAPI.embedderMessageAck(" +
        base::IntToString(id) + ",\"\");";
    base::string16 javascript = base::UTF8ToUTF16(code);
    web_contents()->GetMainFrame()->ExecuteJavaScript(javascript);
  }
}

void CefDevToolsFrontend::HandleMessageFromDevToolsFrontendToBackend(
    const std::string& message) {
  agent_host_->DispatchProtocolMessage(message);
}

void CefDevToolsFrontend::DispatchProtocolMessage(
    content::DevToolsAgentHost* agent_host,
    const std::string& message) {
  std::string code = "InspectorFrontendAPI.dispatchMessage(" + message + ");";
  base::string16 javascript = base::UTF8ToUTF16(code);
  web_contents()->GetMainFrame()->ExecuteJavaScript(javascript);
}

void CefDevToolsFrontend::AgentHostClosed(
    content::DevToolsAgentHost* agent_host,
    bool replaced) {
  Close();
}