• 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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  • 原文地址:https://www.cnblogs.com/chenjian/p/4088699.html
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