Linux: cefclient frozen when pasting clipboard

[magreenblatt]

Original report by Emmanuel Jorge (Bitbucket: e.jorge).

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1 - Steps to reproduce:
-- Launch ./cefclient
-- https://www.google.com is loaded
-- From the address bar, copy (using ctrl+c) the url or some word of the url (e.g: google)
-- Paste the related text (using ctrl+v) in an input field into the webview (e.g: google.com search field)

2 - Expected output: the text may be pasted
Instead, the entire application freezes, then after exactly 30 sec, the application comes back to life but the copied word is not pasted

3 - Tested version : CEF 90 (https://cef-builds.spotifycdn.com/cef_b ... 64.tar.bz2) built and run from Ubuntu 18.04 64 bits
The issue seems to have been introduced from CEF 89. I could not reproduce it using CEF 88.
Running with multi-threaded-message-loop avoid the issue:
./cefclient --multi-threaded-message-loop

[magreenblatt]

Original comment by Emmanuel Jorge (Bitbucket: e.jorge).

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Reproduced not only in OSR mode (updated issue description)

[magreenblatt]

Original changes by Emmanuel Jorge (Bitbucket: e.jorge).

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• changed title from "cefclient OSR frozen when pasting clipboard" to "cefclient frozen when pasting clipboard"
• edited description

[magreenblatt]

• changed title from "cefclient frozen when pasting clipboard" to "Linux: cefclient frozen when pasting clipboard"
• changed component from "Unclassified" to "SampleApps"

[Lecrapouille]

@magreenblatt I have this issue with CEF 123 on Debian 12 with my CEF application in offscreen rendering mode:

• When selecting a paragraph with the mouse, then doing browser->GetMainFrame()->Copy() then pasting inside a text editor (or echo <Ctr-C> | cat -e) it gives the text with 3 consecutive '\n' instead of 1.

• When doing the same thing (browser->GetMainFrame()->Paste()) inside a GitHub input text, it works (\n are removed). But if I paste it for either in a Godot input text or getting the Godot clipboard, then my CEF application is freezing.

• In Godot when pressing keys they can repeat actions, I noticed this called many times browser->GetMainFrame()->Copy() with consequence it cumulates the selected text.

I think there is possible memory corruption with browser->GetMainFrame()->Copy().

PS: how to get the C++ string of browser->GetMainFrame()->Paste() ?