void CWebView::Initialise ()
{
// Initialise the web session (which holds the actual settings) in in-memory mode
CefBrowserSettings browserSettings;
browserSettings.windowless_frame_rate = g_pCore->GetFrameRateLimit ();
browserSettings.javascript_access_clipboard = cef_state_t::STATE_DISABLED;
browserSettings.java = cef_state_t::STATE_DISABLED;
browserSettings.caret_browsing = cef_state_t::STATE_ENABLED;
browserSettings.universal_access_from_file_urls = cef_state_t::STATE_DISABLED; // Also filtered by resource interceptor, but set this nevertheless
browserSettings.file_access_from_file_urls = cef_state_t::STATE_DISABLED;
browserSettings.webgl = cef_state_t::STATE_ENABLED;
browserSettings.javascript_open_windows = cef_state_t::STATE_DISABLED;
bool bEnabledPlugins = g_pCore->GetWebCore ()->GetPluginsEnabled ();
browserSettings.plugins = bEnabledPlugins ? cef_state_t::STATE_ENABLED : cef_state_t::STATE_DISABLED;
if ( !m_bIsLocal )
{
bool bEnabledJavascript = g_pCore->GetWebCore ()->GetRemoteJavascriptEnabled ();
browserSettings.javascript = bEnabledJavascript ? cef_state_t::STATE_ENABLED : cef_state_t::STATE_DISABLED;
}
CefWindowInfo windowInfo;
windowInfo.SetAsWindowless ( g_pCore->GetHookedWindow (), m_bIsTransparent );
CefBrowserHost::CreateBrowser ( windowInfo, this, "", browserSettings, nullptr );
}
bool FWebBrowserHandler::OnBeforePopup( CefRefPtr<CefBrowser> Browser,
CefRefPtr<CefFrame> Frame,
const CefString& TargetUrl,
const CefString& TArgetFrameName,
const CefPopupFeatures& PopupFeatures,
CefWindowInfo& WindowInfo,
CefRefPtr<CefClient>& Client,
CefBrowserSettings& Settings,
bool* NoJavascriptAccess )
{
// By default, we ignore any popup requests unless they are handled by us in some way.
bool bSupressCEFWindowCreation = true;
TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
if (BrowserWindow.IsValid())
{
bSupressCEFWindowCreation = BrowserWindow->OnCefBeforePopup(TargetUrl, TArgetFrameName);
if(!bSupressCEFWindowCreation)
{
if(BrowserWindow->SupportsNewWindows())
{
CefRefPtr<FWebBrowserHandler> NewHandler(new FWebBrowserHandler);
NewHandler->SetBrowserWindowParent(BrowserWindow);
NewHandler->SetPopupFeatures(MakeShareable(new FWebBrowserPopupFeatures(PopupFeatures)));
Client = NewHandler;
CefWindowHandle ParentWindowHandle = BrowserWindow->GetCefBrowser()->GetHost()->GetWindowHandle();
// Allow overriding transparency setting for child windows
bool bUseTransparency = BrowserWindow->UseTransparency()
? NewHandler->BrowserPopupFeatures->GetAdditionalFeatures().Find(TEXT("Epic_NoTransparency")) == INDEX_NONE
: NewHandler->BrowserPopupFeatures->GetAdditionalFeatures().Find(TEXT("Epic_UseTransparency")) != INDEX_NONE;
// Always use off screen rendering so we can integrate with our windows
WindowInfo.SetAsWindowless(ParentWindowHandle, bUseTransparency);
// We need to rely on CEF to create our window so we set the WindowInfo, BrowserSettings, Client, and then return false
bSupressCEFWindowCreation = false;
}
else
{
bSupressCEFWindowCreation = true;
}
}
}
return bSupressCEFWindowCreation;
}
TSharedPtr<IWebBrowserWindow> FWebBrowserSingleton::CreateBrowserWindow(
void* OSWindowHandle,
FString InitialURL,
uint32 Width,
uint32 Height,
bool bUseTransparency,
bool bThumbMouseButtonNavigation,
TOptional<FString> ContentsToLoad,
bool ShowErrorMessage,
FColor BackgroundColor)
{
#if WITH_CEF3
// Create new window
TSharedPtr<FWebBrowserWindow> NewWindow(new FWebBrowserWindow(FIntPoint(Width, Height), InitialURL, ContentsToLoad, ShowErrorMessage, bThumbMouseButtonNavigation, bUseTransparency));
// WebBrowserHandler implements browser-level callbacks.
CefRefPtr<FWebBrowserHandler> NewHandler(new FWebBrowserHandler);
NewWindow->SetHandler(NewHandler);
// Information used when creating the native window.
CefWindowHandle WindowHandle = (CefWindowHandle)OSWindowHandle; // TODO: check this is correct for all platforms
CefWindowInfo WindowInfo;
// Always use off screen rendering so we can integrate with our windows
WindowInfo.SetAsWindowless(WindowHandle, bUseTransparency);
// Specify CEF browser settings here.
CefBrowserSettings BrowserSettings;
// Set max framerate to maximum supported.
BrowserSettings.windowless_frame_rate = 60;
BrowserSettings.background_color = CefColorSetARGB(BackgroundColor.A, BackgroundColor.R, BackgroundColor.G, BackgroundColor.B);
// Disable plugins
BrowserSettings.plugins = STATE_DISABLED;
CefString URL = *InitialURL;
// Create the CEF browser window.
if (CefBrowserHost::CreateBrowser(WindowInfo, NewHandler.get(), URL, BrowserSettings, NULL))
{
WindowInterfaces.Add(NewWindow);
return NewWindow;
}
#endif
return NULL;
}
void BrowserClient::initBrowser(const std::string& url)
{
//Setup our main view that will show the cef ui
setupMainView( _width, _height );
_viewer->addView( _mainView );
//Setup RTT camera for screen capture
setupRTTCamera();
{
CefWindowInfo windowInfo;
CefBrowserSettings browserSettings;
//TODO: populate settings from CLA's
//windowInfo.SetAsOffScreen(0L);
//windowInfo.SetTransparentPainting(true);
windowInfo.SetAsWindowless(0L, true);
_browser = CefBrowserHost::CreateBrowserSync(windowInfo, this, url.c_str(), browserSettings, 0L);
_browser->GetHost()->SendFocusEvent(true);
}
#ifdef WIN32
//Setup native event handling on Windows
osgViewer::GraphicsHandleWin32* graphicsHandleWin32 = dynamic_cast<osgViewer::GraphicsHandleWin32*>(_mainView->getCamera()->getGraphicsContext());
if (graphicsHandleWin32)
_nativeEventHandler = new NativeEventHandlerWin(graphicsHandleWin32->getHWND(), this, _browser);
#endif
addExecuteCallback(new MapExecuteCallback(this)); // handles map related calls
addExecuteCallback(new FileExecuteCallback(this)); // handles file related calls
_mainEventHandler = new BrowserEventHandler(_mainView.get(), this, _browser);
_mainView->addEventHandler(_mainEventHandler);
}
bool CreateBrowser(const String& initialURL, int width, int height)
{
if (browser_.get())
{
LOGERROR("WebClient::CreateBrowser - Browser already created");
return false;
}
if (webClient_->renderHandler_.Null())
{
LOGERROR("WebClient::CreateBrowser - No render handler specified");
return false;
}
CefWindowInfo windowInfo;
CefBrowserSettings browserSettings;
browserSettings.webgl = STATE_ENABLED;
browserSettings.file_access_from_file_urls = STATE_ENABLED;
browserSettings.universal_access_from_file_urls = STATE_ENABLED;
windowInfo.width = width;
windowInfo.height = height;
windowInfo.transparent_painting_enabled = 1;
Graphics* graphics = webClient_->GetSubsystem<Graphics>();
if (graphics)
{
SDL_Window* sdlWindow = static_cast<SDL_Window*>(graphics->GetSDLWindow());
SDL_SysWMinfo info;
SDL_VERSION(&info.version);
if(SDL_GetWindowWMInfo(sdlWindow, &info))
{
#ifdef ATOMIC_PLATFORM_OSX
NSView* view = (NSView*) GetNSWindowContentView(info.info.cocoa.window);
windowInfo.SetAsWindowless(view, false);
#endif
#ifdef ATOMIC_PLATFORM_WINDOWS
windowInfo.SetAsWindowless(info.info.win.window, /*transparent*/ true);
#endif
}
}
else
{
#ifndef ATOMIC_PLATFORM_LINUX
// headless
windowInfo.SetAsWindowless(nullptr, true);
#endif
}
// TODO: There seems to be a CEF bug when loading a string into a browser
// which was created with an empty URL, this workaround gets things going
// NOTE: I also tried loading the string, delaying 5 seconds and still won't
// load a string until a URL has been passed into the view
String _initialURL = initialLoadString_.Length() ? "x" : initialURL;
webClient_->renderHandler_->SetSize(width, height);
CefRefPtr<CefBrowser> browser = CefBrowserHost::CreateBrowserSync(windowInfo, this,
_initialURL.CString(), browserSettings, nullptr);
if (!browser.get())
return false;
browser_ = browser;
if (initialLoadString_.Length())
{
webClient_->LoadString(initialLoadString_, initialLoadStringURL_);
}
return true;
}
HWND WebViewFactory::GetWebView(const HWND& hSameProcessWnd, const HINSTANCE& hInstance, const int& x, const int& y, const int& width,
const int& height, const CefString& url, const int& alpha, const bool& taskbar, const bool& trans, const int& winCombination)
{
//std::unique_lock<std::mutex> lock(factoryMutex_);
#ifdef _DEBUG
char szTmp[8192] = { 0 };
sprintf_s(szTmp, "------GetWebView %s", url.ToString().c_str() );
OutputDebugStringA(szTmp);
#endif
CefRefPtr<CefBrowser> browser;
{
if (hSameProcessWnd && IsWindow(hSameProcessWnd))
{
CefRefPtr<WebItem> item = FindItem(hSameProcessWnd);
if ( item.get() )
{
browser = item->getBrowserByHwnd(hSameProcessWnd);
}
}
}
CefRefPtr<WebItem> item = new WebItem;
item->m_handle = new ClientHandler();
item->m_handle->SetMainWindowHandle(NULL);
CefRefPtr<BrowserProvider> provider = new BrowserProvider(item->m_handle);
CefBrowserSettings browser_settings;
const bool transparent = trans;
//cmd_line->HasSwitch(cefclient::kTransparentPaintingEnabled);
const bool show_update_rect = false;
RECT rect;
CefRefPtr<OSRWindow> window =
OSRWindow::Create(provider, transparent,
show_update_rect);
WCHAR szOSRWindowClass[] = L"WebViewWindowClass";
rect.left = x;
rect.top = y;
rect.right = x + width;
rect.bottom = y + height;
window->CreateWidget(NULL, rect, hInstance, szOSRWindowClass, trans, winCombination);
assert(IsWindow(window->hwnd()));
bool bTest = item->m_window_map.insert(std::make_pair(window->hwnd(), window)).second;
assert(bTest == true);
CefWindowInfo info;
info.SetAsWindowless(window->hwnd(), transparent);
info.transparent_painting_enabled = trans; //是否需要?
info.windowless_rendering_enabled = true;
//item->m_handle->SetOSRHandler(window.get());
if ( !taskbar )
{
DWORD exStyle = GetWindowLong(window->hwnd(), GWL_EXSTYLE);
exStyle &= ~WS_EX_APPWINDOW;
exStyle |= WS_EX_TOOLWINDOW;
SetWindowLong(window->hwnd(), GWL_EXSTYLE, exStyle);
SetWindowPos(window->hwnd(), NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
}
window->SetAlpha(alpha);
//ShowWindow(window->hwnd(), SW_SHOW);
//browser_settings.file_access_from_file_urls = STATE_ENABLED;
browser_settings.universal_access_from_file_urls = STATE_ENABLED; //让xpack访问本地文件
//browser_settings.web_security = STATE_DISABLED; //网页安全
//browser_settings.webgl = STATE_DISABLED;
//browser_settings.plugins = STATE_DISABLED;
//browser_settings.java = STATE_DISABLED;
//browser_settings.application_cache = STATE_DISABLED; //不用缓存
// Creat the new child browser window
//CefRequestContextSettings settings;
//CefString(&settings.cache_path) = CefString(g_strGlobalCachePath.c_str());
/*if (!shared_request_context_.get()) {
shared_request_context_ =
CefRequestContext::CreateContext(CefRequestContext::GetGlobalContext(),
new ClientRequestContextHandler);
}*/
/*if ( m_requestContextHandler.get() == NULL )
{
m_requestContextHandler = new RequestContextHandlerPath(g_strGlobalCachePath.c_str());
}
CefRefPtr<CefRequestContext> request_context = CefRequestContext::CreateContext(settings, m_requestContextHandler);*/
m_viewList.push_back(item);
if ( browser.get() )
{
CefBrowserHost::CreateInheritBrowser(browser, info, item->m_handle,
url, browser_settings, CookiesManage::getInst().getShareRequest() );
}
else{
CefBrowserHost::CreateBrowser(info, item->m_handle,
url, browser_settings, CookiesManage::getInst().getShareRequest());
}
//WCHAR szBuf[] = { L"D:\\work\\WebUIDemo\\bin\\Release\\uiframe\\PepperFlash1\\pepflashplayer.dll;application/x-shockwave-flash" };
//item->m_provider->GetBrowser()->RegPlugin(szBuf, true);
return window->hwnd();
}