Chromium Embedded Framework Forum

by **huaouyang** » Tue Sep 06, 2016 3:37 am

Hi Guys,

I have a trouble to use textarea in OSR mode, it seems textarea can't support Enter key to break line in OSR mode.

I use the cefclient example with -off-screen-rendering-enabled flag (enable OSR), and I load the example as below to test it, it fails to break line by enter/return key.

Any idea for OSR issue?

Envi:
Mac OS X 10.11
CEF 3.2704

thanks
James

textarea example:

Code: Select all: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <textarea id="desc" rows="6" cols="20" maxlength="200" placeholder="example" spellcheck="false"></textarea> </body> </html>

by **huaouyang** » Tue Sep 06, 2016 9:12 pm

I use code as below to fix this issue:

Code: Select all: - (void)keyDown:(NSEvent*)event { CefRefPtr<CefBrowser> browser = [self getBrowser]; if (!browser.get()) return; if ([event type] != NSFlagsChanged) { // The return value of this method seems to always be set to YES, // thus we ignore it and ask the host view whether IME is active // or not. [[self inputContext] handleEvent:event]; CefKeyEvent keyEvent; [self getKeyEvent:keyEvent forEvent:event]; keyEvent.type = KEYEVENT_RAWKEYDOWN; browser->GetHost()->SendKeyEvent(keyEvent); } } - (void)keyUp:(NSEvent*)event { CefRefPtr<CefBrowser> browser = [self getBrowser]; if (!browser.get()) return; CefKeyEvent keyEvent; [self getKeyEvent:keyEvent forEvent:event]; keyEvent.type = KEYEVENT_KEYUP; browser->GetHost()->SendKeyEvent(keyEvent); }

who knows what's the meaning for the cefclient code:

Code: Select all: - (void)keyDown:(NSEvent*)event { CefRefPtr<CefBrowser> browser = [self getBrowser]; if (!browser.get()) return; CefKeyEvent keyEvent; [self getKeyEvent:keyEvent forEvent:event]; if ([event type] != NSFlagsChanged) { browser->GetHost()->HandleKeyEventBeforeTextInputClient(event); // The return value of this method seems to always be set to YES, // thus we ignore it and ask the host view whether IME is active // or not. [[self inputContext] handleEvent:event]; browser->GetHost()->HandleKeyEventAfterTextInputClient(event); } }

by **magreenblatt** » Wed Sep 07, 2016 1:43 pm

The cefclient code is to support IME.

Chromium Embedded Framework Forum

Can't support enter key in textarea with OSR mode

Can't support enter key in textarea with OSR mode

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Re: Can't support enter key in textarea with OSR mode

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