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198 lines
5.3 KiB
C++
198 lines
5.3 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#include "WebBrowserPrivatePCH.h"
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#include "WebBrowserHandler.h"
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#include "WebBrowserWindow.h"
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#include "WebBrowserSingleton.h"
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#define LOCTEXT_NAMESPACE "WebBrowserHandler"
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#if WITH_CEF3
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FWebBrowserHandler::FWebBrowserHandler()
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: ShowErrorMessage(true)
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{
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// This has to match the config in UnrealCEFSubpProcess
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CefMessageRouterConfig MessageRouterConfig;
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MessageRouterConfig.js_query_function = "ueQuery";
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MessageRouterConfig.js_cancel_function = "ueQueryCancel";
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MessageRouter = CefMessageRouterBrowserSide::Create(MessageRouterConfig);
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}
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void FWebBrowserHandler::OnTitleChange(CefRefPtr<CefBrowser> Browser, const CefString& Title)
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->SetTitle(Title);
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}
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}
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void FWebBrowserHandler::OnAddressChange(CefRefPtr<CefBrowser> Browser, CefRefPtr<CefFrame> Frame, const CefString& Url)
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{
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if (Frame->IsMain())
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->SetUrl(Url);
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}
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}
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}
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void FWebBrowserHandler::OnAfterCreated(CefRefPtr<CefBrowser> Browser)
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->BindCefBrowser(Browser);
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}
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}
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void FWebBrowserHandler::OnBeforeClose(CefRefPtr<CefBrowser> Browser)
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{
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MessageRouter->OnBeforeClose(Browser);
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->BindCefBrowser(nullptr);
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}
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}
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void FWebBrowserHandler::OnLoadError(CefRefPtr<CefBrowser> Browser,
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CefRefPtr<CefFrame> Frame,
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CefLoadHandler::ErrorCode InErrorCode,
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const CefString& ErrorText,
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const CefString& FailedUrl)
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{
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// Don't display an error for downloaded files.
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if (InErrorCode == ERR_ABORTED)
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{
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return;
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}
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// notify browser window
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if (Frame->IsMain())
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->NotifyDocumentError();
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}
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}
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// Display a load error message.
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if (ShowErrorMessage)
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{
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FFormatNamedArguments Args;
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{
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Args.Add(TEXT("FailedUrl"), FText::FromString(FailedUrl.ToWString().c_str()));
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Args.Add(TEXT("ErrorText"), FText::FromString(ErrorText.ToWString().c_str()));
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Args.Add(TEXT("ErrorCode"), FText::AsNumber(InErrorCode));
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}
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FText ErrorMsg = FText::Format(LOCTEXT("WebBrowserLoadError", "Failed to load URL {FailedUrl} with error {ErrorText} ({ErrorCode})."), Args);
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FString ErrorHTML = TEXT("<html><body bgcolor=\"white\"><h2>") + ErrorMsg.ToString() + TEXT("</h2></body></html>");
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Frame->LoadString(*ErrorHTML, FailedUrl);
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}
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}
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void FWebBrowserHandler::OnLoadingStateChange(CefRefPtr<CefBrowser> browser, bool isLoading, bool canGoBack, bool canGoForward)
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->NotifyDocumentLoadingStateChange(isLoading);
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}
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}
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bool FWebBrowserHandler::GetViewRect(CefRefPtr<CefBrowser> Browser, CefRect& Rect)
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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return BrowserWindow->GetViewRect(Rect);
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}
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return false;
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}
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void FWebBrowserHandler::OnPaint(CefRefPtr<CefBrowser> Browser,
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PaintElementType Type,
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const RectList& DirtyRects,
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const void* Buffer,
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int Width, int Height)
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->OnPaint(Type, DirtyRects, Buffer, Width, Height);
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}
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}
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void FWebBrowserHandler::OnCursorChange(CefRefPtr<CefBrowser> Browser, CefCursorHandle Cursor)
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{
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TSharedPtr<FWebBrowserWindow> BrowserWindow = BrowserWindowPtr.Pin();
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if (BrowserWindow.IsValid())
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{
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BrowserWindow->OnCursorChange(Cursor);
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}
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}
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bool FWebBrowserHandler::OnBeforeResourceLoad(CefRefPtr<CefBrowser> Browser, CefRefPtr<CefFrame> Frame, CefRefPtr<CefRequest> Request)
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{
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const FString LanguageHeaderText(TEXT("Accept-Language"));
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const FString LocaleCode = FWebBrowserSingleton::GetCurrentLocaleCode();
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CefRequest::HeaderMap HeaderMap;
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Request->GetHeaderMap(HeaderMap);
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auto LanguageHeader = HeaderMap.find(*LanguageHeaderText);
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if (LanguageHeader != HeaderMap.end())
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{
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(*LanguageHeader).second = *LocaleCode;
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}
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else
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{
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HeaderMap.insert(std::pair<CefString, CefString>(*LanguageHeaderText, *LocaleCode));
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}
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Request->SetHeaderMap(HeaderMap);
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return false;
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}
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void FWebBrowserHandler::OnRenderProcessTerminated(CefRefPtr<CefBrowser> Browser, TerminationStatus Status)
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{
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MessageRouter->OnRenderProcessTerminated(Browser);
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}
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bool FWebBrowserHandler::OnBeforeBrowse(CefRefPtr<CefBrowser> Browser,
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CefRefPtr<CefFrame> Frame,
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CefRefPtr<CefRequest> Request,
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bool IsRedirect)
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{
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MessageRouter->OnBeforeBrowse(Browser, Frame);
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return false;
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}
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void FWebBrowserHandler::SetBrowserWindow(TSharedPtr<FWebBrowserWindow> InBrowserWindow)
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{
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BrowserWindowPtr = InBrowserWindow;
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}
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bool FWebBrowserHandler::OnProcessMessageReceived(CefRefPtr<CefBrowser> Browser,
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CefProcessId SourceProcess,
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CefRefPtr<CefProcessMessage> Message)
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{
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return MessageRouter->OnProcessMessageReceived(Browser, SourceProcess, Message);
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}
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#endif
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#undef LOCTEXT_NAMESPACE
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