AndroidJavaWebBrowser.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
 
#if USE_ANDROID_JNI
 
#include "AndroidJniWebViewControl.h"
#include "Android/AndroidPlatform.h"
#include "Android/AndroidJava.h"
#include "RHI.h"
#include "RHIResources.h"
 
// Wrapper for com/epicgames/unreal/WebViewControl.java.
class FJavaAndroidWebBrowser : public UE::Jni::TClassObject<UE::Jni::FWebViewControl>
{
public:
    FJavaAndroidWebBrowser(bool swizzlePixels, bool vulkanRenderer, int32 width, int32 height, jlong widgetPtr, bool bEnableRemoteDebugging, bool bUseTransparency, bool bEnableDomStorage, bool bShouldUseBitmapRender, const FString& UserAgentApplication, bool bEnableFloatingCloseButton);
    virtual ~FJavaAndroidWebBrowser();
    void Release();
    bool GetVideoLastFrameBitmap(void* outPixels, int64 outCount);
    bool GetVideoLastFrameData(void* & outPixels, int64 & outCount, bool *bRegionChanged);
    bool GetVideoLastFrame(int32 destTexture);
    bool DidResolutionChange();
    bool UpdateVideoFrame(int32 ExternalTextureId, bool *bRegionChanged);
    void ExecuteJavascript(const FString& Script);
    void LoadURL(const FString& NewURL);
    void LoadString(const FString& Contents, const FString& BaseUrl);
    void StopLoad();
    void Reload();
    void Close();
    void ShowFloatingCloseButton(bool bShow, bool bDraggable);
    void GoBack();
    void GoForward();
    void SendTouchDown(float x, float y);
    void SendTouchUp(float x, float y);
    void SendTouchMove(float x, float y);
    bool SendKeyDown(int32 KeyCode);
    bool SendKeyUp(int32 KeyCode);
    void SetAndroid3DBrowser(bool InIsAndroid3DBrowser);
    void SetVisibility(bool InIsVisible);
    void Update(const int posX, const int posY, const int sizeX, const int sizeY);
private:
    static FName GetClassName();
 
    FJavaClassMethod ReleaseMethod;
    FJavaClassMethod GetVideoLastFrameBitmapMethod;
    FJavaClassMethod GetVideoLastFrameDataMethod;
    FJavaClassMethod GetVideoLastFrameMethod;
    FJavaClassMethod DidResolutionChangeMethod;
    FJavaClassMethod UpdateVideoFrameMethod;
    FJavaClassMethod UpdateMethod;
    FJavaClassMethod ExecuteJavascriptMethod;
    FJavaClassMethod LoadURLMethod;
    FJavaClassMethod LoadStringMethod;
    FJavaClassMethod StopLoadMethod;
    FJavaClassMethod ReloadMethod;
    FJavaClassMethod CloseMethod;
    FJavaClassMethod ShowFloatingCloseButtonMethod;
    FJavaClassMethod GoBackOrForwardMethod;
    FJavaClassMethod SendTouchEventMethod;
    FJavaClassMethod SendKeyEventMethod;
    FJavaClassMethod SetAndroid3DBrowserMethod;
    FJavaClassMethod SetVisibilityMethod;
 
    // FrameUpdateInfo member field ids
    jclass FrameUpdateInfoClass;
    jfieldID FrameUpdateInfo_Buffer;
    jfieldID FrameUpdateInfo_Bitmap;
    jfieldID FrameUpdateInfo_FrameReady;
    jfieldID FrameUpdateInfo_RegionChanged;
    
    FTextureRHIRef VideoTexture;
    bool bVideoTextureValid;
 
public:
    FTextureRHIRef GetVideoTexture()
    {
        return VideoTexture;
    }
 
    void SetVideoTexture(FTextureRHIRef Texture)
    {
        FPlatformMisc::LowLevelOutputDebugStringf(TEXT("Fetch RT: SetVideoTexture: %d"), Texture.IsValid());
 
        VideoTexture = Texture;
    }
 
    void SetVideoTextureValid(bool Condition)
    {
        bVideoTextureValid = Condition;
    }
 
    bool IsVideoTextureValid()
    {
        return bVideoTextureValid;
    }
 
};
 
#endif // USE_ANDROID_JNI