Right click menu is opened in the left corner

[shenhavba]

Bug Report

What version of the product are you using?

CefSharp.Common, CefSharp.Wpf all version 55

What version are you using? Nuget? CI Nuget? build from a branch? If so which branch? e.g. 53.0.1
What architecture x86 or x64?

build from branch 55.0.0-pre01 - x86

On what operating system?

windows 10

Are you using WinForms, WPF or OffScreen?

wpf

What steps will reproduce the problem?

 1. open the browser(not in full size)
 2.right click on the browser page - the menu is opened outside the browser and can't be clolsed.

Please provide detailed information here, enough for someone else to reprodce your problem.
Please no binary (zip, etc) links, fork the MinimalExample and push your changes to GitHub. (Alternatively use a code sharing service list Gist or Pastebin).
What is the expected output? What do you see instead?

The expected behavior is that the right click menu will open inside the bowser area and when clicking on the browser again, the menu should be closed.

Its working fine in version 47.

Does this problem also occur in the CEF Sample Application from http://opensource.spotify.com/cefbuilds/index.html?

No.

[merceyz]

https://github.com/cefsharp/CefSharp/blob/master/ISSUE_TEMPLATE.md

[amaitland]

The menu unable to be closed is #1795

In reality you probably need a custom WPF context menu to resolve this, which is blocked on #1767 for which someone will actually need to take ownership and see the issue resolved in CEF.

[ashu3011]

You can see this happening in the CefSharp minimal example. Basically the offset is taken from the corner of the browser window but the menu is displayed using the same offset from the Monitor top left.

[amaitland]

A complete implementation of CefRenderHandler::GetScreenPoint is required to fix this. Needs to handle DPI scaling as well.

[amaitland]

The experimental implementation I had previous commented out is now available for testing on master.

ef27fb5

Testing at different DPIs is required. To dismiss the menu it's important to see #1795