WKWebView inconsistent print margins

[lubos]

It seems like new WKWebView is injecting undesirable print margins which is not consistent with how web-browsers are behaving.

For example, consider printing this HTML:

<div style="background-color: #000; height: 100px"></div>

When printing this HTML from WKWebView, here is the print preview:

When printing this HTML from Safari, here is the print print preview:

Notice inconsistent print margins between those two.

I think it has something to do with:

Eto/src/Eto.Mac/Forms/Controls/WKWebViewHandler.cs

Line 296 in 32703b9

var printInfo = NSPrintInfo.SharedPrintInfo;

Where the legacy WebView component had the margins hardcoded as per:

Eto/src/Eto.Mac/Forms/Controls/WebViewHandler.cs

Lines 249 to 257 in 32703b9

	const float margin = 24f;
	var printOperation = frameView.GetPrintOperation(new NSPrintInfo
	{
	VerticallyCentered = false,
	LeftMargin = margin,
	RightMargin = margin,
	TopMargin = margin,
	BottomMargin = margin
	});

[cwensley]

Hey @lubos,

Thanks for reporting the issue! Looks like (another) easy fix.