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This also ensures that the mouse positions line up with what's rendered. Could have also been done by changing browser zoom level so that it stays sharp but it would have meant converting from a scale of 1 to a zoom level of 0 and making all mouse events use absolute positions. [CL 2397639 by Matthew Griffin in Main branch]
114 lines
3.6 KiB
C++
114 lines
3.6 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#include "WebBrowserPrivatePCH.h"
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#include "WebBrowserViewport.h"
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#include "IWebBrowserWindow.h"
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FIntPoint FWebBrowserViewport::GetSize() const
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{
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return (WebBrowserWindow->GetTexture() != nullptr)
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? FIntPoint(WebBrowserWindow->GetTexture()->GetWidth(), WebBrowserWindow->GetTexture()->GetHeight())
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: FIntPoint();
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}
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FSlateShaderResource* FWebBrowserViewport::GetViewportRenderTargetTexture() const
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{
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return WebBrowserWindow->GetTexture();
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}
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void FWebBrowserViewport::Tick( const FGeometry& AllottedGeometry, double InCurrentTime, float DeltaTime )
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{
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// Calculate max corner of the viewport using same method as Slate
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FVector2D MaxPos = AllottedGeometry.AbsolutePosition + AllottedGeometry.GetLocalSize();
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// Get size by subtracting as int to avoid incorrect rounding when size and position are .5
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WebBrowserWindow->SetViewportSize(MaxPos.IntPoint() - AllottedGeometry.AbsolutePosition.IntPoint());
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}
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bool FWebBrowserViewport::RequiresVsync() const
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{
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return false;
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}
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FCursorReply FWebBrowserViewport::OnCursorQuery( const FGeometry& MyGeometry, const FPointerEvent& CursorEvent )
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{
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// TODO: retrieve cursor type from WebBrowserWindow if we can figure that out from CefCursorHandle
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return FCursorReply::Unhandled();
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}
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FReply FWebBrowserViewport::OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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// Capture mouse on left button down so that you can drag out of the viewport
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WebBrowserWindow->OnMouseButtonDown(MyGeometry, MouseEvent);
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if (MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton && ViewportWidget.IsValid())
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{
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return FReply::Handled().CaptureMouse(ViewportWidget.Pin().ToSharedRef());
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}
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return FReply::Handled();
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}
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FReply FWebBrowserViewport::OnMouseButtonUp(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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// Release mouse capture when left button released
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WebBrowserWindow->OnMouseButtonUp(MyGeometry, MouseEvent);
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if (MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton)
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{
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return FReply::Handled().ReleaseMouseCapture();
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}
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return FReply::Handled();
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}
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void FWebBrowserViewport::OnMouseEnter(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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}
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void FWebBrowserViewport::OnMouseLeave(const FPointerEvent& MouseEvent)
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{
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}
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FReply FWebBrowserViewport::OnMouseMove(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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WebBrowserWindow->OnMouseMove(MyGeometry, MouseEvent);
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return FReply::Handled();
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}
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FReply FWebBrowserViewport::OnMouseWheel(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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WebBrowserWindow->OnMouseWheel(MyGeometry, MouseEvent);
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return FReply::Handled();
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}
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FReply FWebBrowserViewport::OnMouseButtonDoubleClick(const FGeometry& InMyGeometry, const FPointerEvent& InMouseEvent)
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{
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WebBrowserWindow->OnMouseButtonDoubleClick(InMyGeometry, InMouseEvent);
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return FReply::Handled();
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}
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FReply FWebBrowserViewport::OnKeyDown(const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent)
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{
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WebBrowserWindow->OnKeyDown(InKeyEvent);
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return FReply::Handled();
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}
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FReply FWebBrowserViewport::OnKeyUp(const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent)
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{
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WebBrowserWindow->OnKeyUp(InKeyEvent);
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return FReply::Handled();
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}
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FReply FWebBrowserViewport::OnKeyChar( const FGeometry& MyGeometry, const FCharacterEvent& InCharacterEvent )
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{
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WebBrowserWindow->OnKeyChar(InCharacterEvent);
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return FReply::Handled();
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}
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FReply FWebBrowserViewport::OnFocusReceived(const FFocusEvent& InFocusEvent)
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{
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WebBrowserWindow->OnFocus(true);
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return FReply::Handled();
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}
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void FWebBrowserViewport::OnFocusLost(const FFocusEvent& InFocusEvent)
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{
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WebBrowserWindow->OnFocus(false);
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}
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