/*

* Copyright (C) 2010-2019 Apple Inc. All rights reserved.

* Copyright (C) 2017 Sony Interactive Entertainment Inc.

*

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

*

* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''

* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS

* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

* THE POSSIBILITY OF SUCH DAMAGE.

*/

#pragma once

#include "APIObject.h"

#include "PageClientImpl.h"

#include "WKView.h"

#include "WebPageProxy.h"

#include <WebCore/COMPtr.h>

#include <WebCore/WindowMessageListener.h>

#include <wtf/Forward.h>

#include <wtf/RefPtr.h>

#if USE(DIRECT2D)

interface ID3D11Device1;

interface ID3D11DeviceContext1;

interface ID3D11RenderTargetView;

interface IDXGISwapChain;

#endif

namespace WebCore {

class IntSize;

}

namespace WebKit {

class DrawingAreaProxy;

class WebView

: public API::ObjectImpl<API::Object::Type::View>

, WebCore::WindowMessageListener {

public:

static Ref<WebView> create(RECT rect, const API::PageConfiguration& configuration, HWND parentWindow)

{

auto webView = adoptRef(*new WebView(rect, configuration, parentWindow));

webView->initialize();

return webView;

}

~WebView();

HWND window() const { return m_window; }

void setParentWindow(HWND);

void windowAncestryDidChange();

void setIsInWindow(bool);

void setIsVisible(bool);

bool isWindowActive();

bool isFocused();

bool isVisible();

bool isInWindow();

void setCursor(const WebCore::Cursor&);

void setOverrideCursor(HCURSOR);

void setScrollOffsetOnNextResize(const WebCore::IntSize&);

void initialize();

void setToolTip(const String&);

void setViewNeedsDisplay(const WebCore::Region&);

WebPageProxy* page() const { return m_page.get(); }

DrawingAreaProxy* drawingArea() { return page() ? page()->drawingArea() : nullptr; }

#if USE(DIRECT2D)

ID3D11Device1* d3dDevice() const { return m_d3dDevice.get(); }

ID3D11DeviceContext1* d3dImmediateContext() const { return m_immediateContext.get(); }

#endif

private:

WebView(RECT, const API::PageConfiguration&, HWND parentWindow);

static bool registerWebViewWindowClass();

static LRESULT CALLBACK WebViewWndProc(HWND, UINT, WPARAM, LPARAM);

LRESULT wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

LRESULT onMouseEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onWheelEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onHorizontalScroll(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onVerticalScroll(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onKeyEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onPaintEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onPrintClientEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onSizeEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onWindowPositionChangedEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onSetFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onKillFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onTimerEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onShowWindowEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onSetCursor(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

LRESULT onMenuCommand(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

void paint(HDC, const WebCore::IntRect& dirtyRect);

void setWasActivatedByMouseEvent(bool flag) { m_wasActivatedByMouseEvent = flag; }

void updateActiveState();

void updateActiveStateSoon();

void initializeToolTipWindow();

void startTrackingMouseLeave();

void stopTrackingMouseLeave();

bool shouldInitializeTrackPointHack();

void close();

HCURSOR cursorToShow() const;

void updateNativeCursor();

void updateChildWindowGeometries();

void didCommitLoadForMainFrame(bool useCustomRepresentation);

void didFinishLoadingDataForCustomRepresentation(const String& suggestedFilename, const IPC::DataReference&);

virtual double customRepresentationZoomFactor();

virtual void setCustomRepresentationZoomFactor(double);

virtual void findStringInCustomRepresentation(const String&, FindOptions, unsigned maxMatchCount);

virtual void countStringMatchesInCustomRepresentation(const String&, FindOptions, unsigned maxMatchCount);

virtual HWND nativeWindow();

// WebCore::WindowMessageListener

virtual void windowReceivedMessage(HWND, UINT message, WPARAM, LPARAM);

#if USE(DIRECT2D)

void setupSwapChain(const WebCore::IntSize&);

void configureBackingStore(const WebCore::IntSize&);

#endif

HWND m_window { nullptr };

HWND m_topLevelParentWindow { nullptr };

HWND m_toolTipWindow { nullptr };

WTF::String m_toolTip;

WebCore::IntSize m_nextResizeScrollOffset;

HCURSOR m_lastCursorSet { nullptr };

HCURSOR m_webCoreCursor { nullptr };

HCURSOR m_overrideCursor { nullptr };

bool m_isInWindow { false };

bool m_isVisible { false };

bool m_wasActivatedByMouseEvent { false };

bool m_trackingMouseLeave { false };

bool m_isBeingDestroyed { false };

std::unique_ptr<WebKit::PageClientImpl> m_pageClient;

RefPtr<WebPageProxy> m_page;

#if USE(DIRECT2D)

COMPtr<ID3D11Device1> m_d3dDevice;

COMPtr<ID3D11DeviceContext1> m_immediateContext;

COMPtr<ID3D11RenderTargetView> m_renderTargetView;

COMPtr<IDXGISwapChain> m_swapChain;

#endif

};

} // namespace WebKit