cef研究

// Copyright (c) 2010 The Chromium Embedded Framework 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 "include/cef.h"

#include "include/cef_runnable.h"

#include "include/cef_wrapper.h"

#include "cefclient.h"

#include "client_handler.h"

#include "binding_test.h"

#include "string_util.h"

#include "util.h"

#include <sstream>

#include <stdio.h>

#include <string>

CefRefPtr<ClientHandler> g_handler;

CefRefPtr<CefBrowser> AppGetBrowser()

{

  if(!g_handler.get())

    return NULL;

  return g_handler->GetBrowser();

}

CefWindowHandle AppGetMainHwnd()

{

  if(!g_handler.get())

    return NULL;

  return g_handler->GetMainHwnd();

}

static void ExecuteGetSource(CefRefPtr<CefFrame> frame)

{

  // Retrieve the current page source and display.

  std::string source = frame->GetSource();

  source = StringReplace(source, "<", "&lt;");

  source = StringReplace(source, ">", "&gt;");

  std::stringstream ss;

  ss << "<html><body>Source:" << "<pre>" << source

      << "</pre></body></html>";

  frame->LoadString(ss.str(), "http://tests/getsource");

}

void RunGetSourceTest(CefRefPtr<CefBrowser> browser)

{

  // Execute the GetSource() call on the UI thread.

  CefPostTask(TID_UI,

      NewCefRunnableFunction(&ExecuteGetSource, browser->GetMainFrame()));

}

static void ExecuteGetText(CefRefPtr<CefFrame> frame)

{

  std::string text = frame->GetText();

  text = StringReplace(text, "<", "&lt;");

  text = StringReplace(text, ">", "&gt;");

  std::stringstream ss;

  ss << "<html><body>Text:" << "<pre>" << text

      << "</pre></body></html>";

  frame->LoadString(ss.str(), "http://tests/gettext");

}

void RunGetTextTest(CefRefPtr<CefBrowser> browser)

{

  // Execute the GetText() call on the UI thread.

  CefPostTask(TID_UI,

      NewCefRunnableFunction(&ExecuteGetText, browser->GetMainFrame()));

}

void RunRequestTest(CefRefPtr<CefBrowser> browser)

{

	// Create a new request

  CefRefPtr<CefRequest> request(CefRequest::CreateRequest());

  // Set the request URL

  request->SetURL("http://tests/request");

  // Add post data to the request.  The correct method and content-

  // type headers will be set by CEF.

  CefRefPtr<CefPostDataElement> postDataElement(

      CefPostDataElement::CreatePostDataElement());

  std::string data = "arg1=val1&arg2=val2";

  postDataElement->SetToBytes(data.length(), data.c_str());

  CefRefPtr<CefPostData> postData(CefPostData::CreatePostData());

  postData->AddElement(postDataElement);

  request->SetPostData(postData);

  // Add a custom header

  CefRequest::HeaderMap headerMap;

  headerMap.insert(

      std::make_pair("X-My-Header", "My Header Value"));

  request->SetHeaderMap(headerMap);

  // Load the request

  browser->GetMainFrame()->LoadRequest(request);

}

void RunJavaScriptExecuteTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->ExecuteJavaScript(

      "alert('JavaScript execute works!');", "about:blank", 0);

}

void RunPopupTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->ExecuteJavaScript(

      "window.open('http://www.google.com');", "about:blank", 0);

}

void RunLocalStorageTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL("http://tests/localstorage");

}

void RunAccelerated2DCanvasTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL(

      "http://mudcu.be/labs/JS1k/BreathingGalaxies.html");

}

void RunAcceleratedLayersTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL(

      "http://webkit.org/blog-files/3d-transforms/poster-circle.html");

}

void RunWebGLTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL(

      "http://webglsamples.googlecode.com/hg/field/field.html");

}

void RunHTML5VideoTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL(

      "http://www.youtube.com/watch?v=siOHh0uzcuY&html5=True");

}

void RunXMLHTTPRequestTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL("http://tests/xmlhttprequest");

}

void RunWebURLRequestTest(CefRefPtr<CefBrowser> browser)

{

  class RequestClient : public CefWebURLRequestClient

  {

  public:

    RequestClient(CefRefPtr<CefBrowser> browser) : browser_(browser) {}

    virtual void OnStateChange(CefRefPtr<CefWebURLRequest> requester,

                               RequestState state)

    {

      REQUIRE_UI_THREAD();

      if (state == WUR_STATE_DONE) {

        buffer_ = StringReplace(buffer_, "<", "&lt;");

        buffer_ = StringReplace(buffer_, ">", "&gt;");

        std::stringstream ss;

        ss << "<html><body>Source:<pre>" << buffer_ << "</pre></body></html>";

        browser_->GetMainFrame()->LoadString(ss.str(),

            "http://tests/weburlrequest");

      }

    }

    virtual void OnRedirect(CefRefPtr<CefWebURLRequest> requester,

                            CefRefPtr<CefRequest> request,

                            CefRefPtr<CefResponse> response)

    {

      REQUIRE_UI_THREAD();

    }

    virtual void OnHeadersReceived(CefRefPtr<CefWebURLRequest> requester,

                                   CefRefPtr<CefResponse> response)

    {

      REQUIRE_UI_THREAD();

    }

    virtual void OnProgress(CefRefPtr<CefWebURLRequest> requester,

                            uint64 bytesSent, uint64 totalBytesToBeSent)

    {

      REQUIRE_UI_THREAD();

    }

    virtual void OnData(CefRefPtr<CefWebURLRequest> requester,

                        const void* data, int dataLength)

    {

      REQUIRE_UI_THREAD();

      buffer_.append(static_cast<const char*>(data), dataLength);

    }

    virtual void OnError(CefRefPtr<CefWebURLRequest> requester,

                         ErrorCode errorCode)

    {

      REQUIRE_UI_THREAD();

      std::stringstream ss;

      ss << "Load failed with error code " << errorCode;

      browser_->GetMainFrame()->LoadString(ss.str(),

          "http://tests/weburlrequest");

    }

  protected:

    CefRefPtr<CefBrowser> browser_;

    std::string buffer_;

    IMPLEMENT_REFCOUNTING(CefWebURLRequestClient);

  };

  CefRefPtr<CefRequest> request(CefRequest::CreateRequest());

  request->SetURL("http://www.google.com");

  CefRefPtr<CefWebURLRequestClient> client(new RequestClient(browser));

  CefRefPtr<CefWebURLRequest> requester(

      CefWebURLRequest::CreateWebURLRequest(request, client));

}

void RunDOMAccessTest(CefRefPtr<CefBrowser> browser)

{

  class Listener : public CefDOMEventListener

  {

  public:

    Listener() {}

    virtual void HandleEvent(CefRefPtr<CefDOMEvent> event)

    {

      CefRefPtr<CefDOMDocument> document = event->GetDocument();

      ASSERT(document.get());

      std::stringstream ss;

      CefRefPtr<CefDOMNode> button = event->GetTarget();

      ASSERT(button.get());

      std::string buttonValue = button->GetElementAttribute("value");

      ss << "You clicked the " << buttonValue.c_str() << " button. ";

      if (document->HasSelection()) {

        std::string startName, endName;

        // Determine the start name by first trying to locate the "id" attribute

        // and then defaulting to the tag name.

        {

          CefRefPtr<CefDOMNode> node = document->GetSelectionStartNode();

          if (!node->IsElement())

            node = node->GetParent();

          if (node->IsElement() && node->HasElementAttribute("id"))

            startName = node->GetElementAttribute("id");

          else

            startName = node->GetName();

        }

        // Determine the end name by first trying to locate the "id" attribute

        // and then defaulting to the tag name.

        {

          CefRefPtr<CefDOMNode> node = document->GetSelectionEndNode();

          if (!node->IsElement())

            node = node->GetParent();

          if (node->IsElement() && node->HasElementAttribute("id"))

            endName = node->GetElementAttribute("id");

          else

            endName = node->GetName();

        }

        ss << "The selection is from " <<

            startName.c_str() << ":" << document->GetSelectionStartOffset() <<

            " to " <<

            endName.c_str() << ":" << document->GetSelectionEndOffset();

      } else {

        ss << "Nothing is selected.";

      }

      // Update the description.

      CefRefPtr<CefDOMNode> desc = document->GetElementById("description");

      ASSERT(desc.get());

      CefRefPtr<CefDOMNode> text = desc->GetFirstChild();

      ASSERT(text.get());

      ASSERT(text->IsText());

      text->SetValue(ss.str());

    }

    IMPLEMENT_REFCOUNTING(Listener);

  };

  class Visitor : public CefDOMVisitor

  {

  public:

    Visitor() {}

    virtual void Visit(CefRefPtr<CefDOMDocument> document)

    {

      // Register an click listener for the button.

      CefRefPtr<CefDOMNode> button = document->GetElementById("button");

      ASSERT(button.get());

      button->AddEventListener("click", new Listener(), false);

    }

    IMPLEMENT_REFCOUNTING(Visitor);

  };

  // The DOM visitor will be called after the path is loaded.

  CefRefPtr<CefClient> client = browser->GetClient();

  static_cast<ClientHandler*>(client.get())->AddDOMVisitor(

      "http://tests/domaccess", new Visitor());

  browser->GetMainFrame()->LoadURL("http://tests/domaccess");

}

void RunDragDropTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL("http://html5demos.com/drag");

}

void RunModalDialogTest(CefRefPtr<CefBrowser> browser)

{

  browser->GetMainFrame()->LoadURL("http://tests/modalmain");

}

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