Files
UnrealEngine/Engine/Source/Runtime/WebBrowser/Public/IWebBrowserSingleton.h
2025-05-18 13:04:45 +08:00

207 lines
7.3 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "CoreMinimal.h"
#include "Rendering/SlateRenderer.h"
#include "IWebBrowserResourceLoader.h"
class FCEFWebBrowserWindow;
class IWebBrowserCookieManager;
class IWebBrowserWindow;
class IWebBrowserSchemeHandlerFactory;
class UMaterialInterface;
struct FWebBrowserWindowInfo;
class IWebBrowserWindowFactory
{
public:
virtual TSharedPtr<IWebBrowserWindow> Create(
TSharedPtr<FCEFWebBrowserWindow>& BrowserWindowParent,
TSharedPtr<FWebBrowserWindowInfo>& BrowserWindowInfo) = 0;
virtual TSharedPtr<IWebBrowserWindow> Create(
void* OSWindowHandle,
FString InitialURL,
bool bUseTransparency,
bool bThumbMouseButtonNavigation,
bool InterceptLoadRequests = true,
TOptional<FString> ContentsToLoad = TOptional<FString>(),
bool ShowErrorMessage = true,
FColor BackgroundColor = FColor(255, 255, 255, 255)) = 0;
};
struct FBrowserContextSettings
{
FBrowserContextSettings(const FString& InId)
: Id(InId)
, AcceptLanguageList()
, CookieStorageLocation()
, bPersistSessionCookies(false)
, bIgnoreCertificateErrors(false)
, bEnableNetSecurityExpiration(true)
{ }
FString Id;
FString AcceptLanguageList;
FString CookieStorageLocation;
bool bPersistSessionCookies;
bool bIgnoreCertificateErrors;
bool bEnableNetSecurityExpiration;
FOnBeforeContextResourceLoadDelegate OnBeforeContextResourceLoad;
};
struct FCreateBrowserWindowSettings
{
FCreateBrowserWindowSettings()
: OSWindowHandle(nullptr)
, InitialURL()
, bUseTransparency(false)
, bInterceptLoadRequests(true)
, bThumbMouseButtonNavigation(false)
, ContentsToLoad()
, bShowErrorMessage(true)
, BackgroundColor(FColor(255, 255, 255, 255))
, BrowserFrameRate(24)
, Context()
, AltRetryDomains()
{ }
void* OSWindowHandle;
FString InitialURL;
bool bUseTransparency;
bool bInterceptLoadRequests;
bool bThumbMouseButtonNavigation;
TOptional<FString> ContentsToLoad;
bool bShowErrorMessage;
FColor BackgroundColor;
int BrowserFrameRate;
TOptional<FBrowserContextSettings> Context;
TArray<FString> AltRetryDomains;
};
/**
* A singleton class that takes care of general web browser tasks
*/
class IWebBrowserSingleton
{
public:
/**
* Virtual Destructor
*/
virtual ~IWebBrowserSingleton() {};
/** Indicates whether the browser engine is in the shutdown phase. */
virtual bool IsShuttingDown() const = 0;
/** @return A factory object that can be used to construct additional WebBrowserWindows on demand. */
virtual TSharedRef<IWebBrowserWindowFactory> GetWebBrowserWindowFactory() const = 0;
/**
* Create a new web browser window
*
* @param BrowserWindowParent The parent browser window
* @param BrowserWindowInfo Info for setting up the new browser window
* @return New Web Browser Window Interface (may be null if not supported)
*/
virtual TSharedPtr<IWebBrowserWindow> CreateBrowserWindow(
TSharedPtr<FCEFWebBrowserWindow>& BrowserWindowParent,
TSharedPtr<FWebBrowserWindowInfo>& BrowserWindowInfo
) = 0;
/**
* Create a new web browser window
*
* @param Settings Struct containing browser window settings
* @return New Web Browser Window Interface (may be null if not supported)
*/
virtual TSharedPtr<IWebBrowserWindow> CreateBrowserWindow(const FCreateBrowserWindowSettings& Settings) = 0;
#if BUILD_EMBEDDED_APP
virtual TSharedPtr<IWebBrowserWindow> CreateNativeBrowserProxy() = 0;
#endif
virtual TSharedPtr<class IWebBrowserCookieManager> GetCookieManager() const = 0;
virtual TSharedPtr<class IWebBrowserCookieManager> GetCookieManager(TOptional<FString> ContextId) const = 0;
virtual bool RegisterContext(const FBrowserContextSettings& Settings) = 0;
virtual bool UnregisterContext(const FString& ContextId) = 0;
// @return the application cache dir where the cookies are stored
virtual FString ApplicationCacheDir() const = 0;
/**
* Registers a custom scheme handler factory, for a given scheme and domain. The domain is ignored if the scheme is not a browser built in scheme
* and all requests will go through this factory.
* @param Scheme The scheme name to handle.
* @param Domain The domain name to handle.
* @param WebBrowserSchemeHandlerFactory The factory implementation for creating request handlers for this scheme.
*/
virtual bool RegisterSchemeHandlerFactory(FString Scheme, FString Domain, IWebBrowserSchemeHandlerFactory* WebBrowserSchemeHandlerFactory) = 0;
/**
* Unregister a custom scheme handler factory. The factory may still be used by existing open browser windows, but will no longer be provided for new ones.
* @param WebBrowserSchemeHandlerFactory The factory implementation to remove.
*/
virtual bool UnregisterSchemeHandlerFactory(IWebBrowserSchemeHandlerFactory* WebBrowserSchemeHandlerFactory) = 0;
/**
* Enable or disable CTRL/CMD-SHIFT-I shortcut to show the Chromium Dev tools window.
* The value defaults to true on debug builds, otherwise false.
*
* The relevant handlers for spawning new browser windows have to be set up correctly in addition to this flag being true before anything is shown.
*
* @param Value a boolean value to enable or disable the keyboard shortcut.
*/
virtual void SetDevToolsShortcutEnabled(bool Value) = 0;
/**
* Returns whether the CTRL/CMD-SHIFT-I shortcut to show the Chromium Dev tools window is enabled.
*
* The relevant handlers for spawning new browser windows have to be set up correctly in addition to this flag being true before anything is shown.
*
* @return a boolean value indicating whether the keyboard shortcut is enabled or not.
*/
virtual bool IsDevToolsShortcutEnabled() = 0;
/**
* Enable or disable to-lowering of JavaScript object member bindings.
*
* Due to how JavaScript to UObject bridges require the use of FNames for building up the JS API objects, it is possible for case-sensitivity issues
* to develop if an FName has been previously created with differing case to your function or property names. To-lowering the member names allows
* a guaranteed casing for the web page's JS to reference.
*
* Default behavior is enabled, so that all JS side objects have only lowercase members.
*
* @param bEnabled a boolean value to enable or disable the to-lowering.
*/
virtual void SetJSBindingToLoweringEnabled(bool bEnabled) = 0;
/**
* Delete old/unused web cache paths. Some Web implementations (i.e CEF) use version specific cache folders, this
* call lets you schedule a deletion of any now unused folders. Calling this may resulting in async disk I/O.
*
* @param CachePathRoot the base path used for saving the webcache folder
* @param CachePrefix the filename prefix we use for the cache folder (i.e "webcache")
*/
virtual void ClearOldCacheFolders(const FString &CachePathRoot, const FString &CachePrefix) = 0;
/** Set a reference to UWebBrowser's default material*/
virtual void SetDefaultMaterial(UMaterialInterface* InDefaultMaterial) = 0;
/** Set a reference to UWebBrowser's translucent material*/
virtual void SetDefaultTranslucentMaterial(UMaterialInterface* InDefaultMaterial) = 0;
/** Get a reference to UWebBrowser's default material*/
virtual UMaterialInterface* GetDefaultMaterial() = 0;
/** Get a reference to UWebBrowser's transparent material*/
virtual UMaterialInterface* GetDefaultTranslucentMaterial() = 0;
};