Copy (Cmd+C) and Paste (Cmd+V) do not work in text controls on Mac. Bug: paste is executed twice.

[GoogleCodeExporter]

Copy (Cmd+C) and Paste (Cmd+V) do not work in text controls on Mac. Created topic on the CEF Forum: http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=12561

Original issue reported on code.google.com by czarek.t...@gmail.com on 11 Jan 2015 at 6:46

[GoogleCodeExporter]

Marshall responed on the CEF Forum:

Shortcuts are handled via the application top menu on Mac where methods called by key 
bindings are defined in the XIB file (for example cefclient/mac/English.lproj/MainMenu.xib).
If that doesn't exist you probably need to implement performKeyEquivalent.

Original comment by czarek.t...@gmail.com on 12 Jan 2015 at 5:08

[kocrotus]

The copy and paste can be done by adding script to the cefpython client handler

The client handler is in : OnKeyEvent handler. The windows and linux somehow able to use Ctrl-C and Ctrl-v, but the Mac dev need to add some code like this

def OnKeyEvent(self, browser, event, eventHandle):
     if get_platform()==PLATFORM_MAC:
            if event["modifiers"]==128:
                if event["native_key_code"]==8:
                    mainBrowser.GetFocusedFrame().copy()
                elif event["native_key_code"]==9:
                    mainBrowser.GetFocusedFrame().paste()

                return False

the get_platform() and PLATFORM_MAC are variable. The mainBrowser is the instance returned by the cefpython.CreateBrowserSync() call.

I don't know if this ability need to be part of the cefpython or must be implemented independently by the developer, but sure is the windows and Linux can do copy-paste without additional coding.

[cztomczak]

Fixed in commit c23bc2d. v56 release coming soon. Copy/paste commands are now handled by default. You can still overwrite this behavior by implementing OnKeyEvent and returning True. CEF Python checks for return value and if True it won't handle these commands.

[cztomczak]

There seems a bug was introduced with the default implementation for Copy/Paste. These commands are executed twice in one of user's app. Here is the code:

# Handle paste: command + v
            elif pyEvent["modifiers"] == 128 \
                    and pyEvent["native_key_code"] == 9:
                pyBrowser.GetFocusedFrame().Paste()
                return True

There should be a check: pyEvent["type"] = cef.KEYEVENT_RAWKEYDOWN.

Additionally support for more shortcuts should be added:

• native_key_code 0 SelectAll()
• native_key_code 6 Undo()
• native_key_code 7 Cut()
• modifiers 130 native_key_code 6 Redo()

[jungnoh]

Is this issue fixed? I'm still having the issue of pasting twice on High Sierra.

[cztomczak]

@studiodoth You can fix this in your app by implementing OnKeyEvent and using code from my previous comment.

[cztomczak]

Fix double paste and handle more keyboard shortcuts on Mac in rev 8a20fdb.
Handle: copy, paste, cut, undo, redo, select all.