Copy and paste selection should be possible after de-selection

[dotancohen]

// Zim page and itself:

1) Highlight buffer:
Works so long as the original text is still highlighted. If the user clicks on the notebook so that the text is no longer highlighted, a middle-click does not paste.

2) Ctrl-C / Ctrl-V:
Works as expected.

// Zim page and another page in the same notebook:

1) Highlight buffer:
Does not work at all.

2) Ctrl-C / Ctrl-V:
Works as expected.

// Zim page and another page in another Zim notebook:

1) Highlight buffer:
Works so long as the original text remains highlighted. If the user clicks in the original notebook so that the text is no longer highlighted, a middle-click does not paste into the other notebook.

2) Ctrl-C / Ctrl-V:
Works as expected.

// Zim page and the Kate text editor:

1) Highlight buffer:
From Kate to Zim: Works as expected.
From Zim to Kate: Works so long as the original text in Zim remains highlighted. If the user clicks in the Zim notebook so that the text is no longer highlighted, a middle-click does not paste into Kate.

2) Ctrl-C / Ctrl-V:
From Kate to Zim: Works as expected.
From Zim to Kate: Adds newlines after pasted text.

[Jaap Karssenberg (jaap.karssenberg)]

Please do not bundle multiple issues in one report. So far I only see expected behavior, in fact Kate is not behaving according to specification by making the paste selection persist. For example gedit does it exactly the same as zim.

[dotancohen (dotancohen)]

I did not see this as separate issues, sorry.

Firefox and other applications do make the paste selection persist. I wonder if this is a GTK issue that affects both Zim and Gedit. I will ask about on some mailing lists and see what the expected behaviour is.

[Jaap Karssenberg (jaap.karssenberg)]

Seems there are different philosophies on how this is supposed to
work. For Gnome the default is for selections not to be persistent.
However I do not see any use case which would break by making it
persistent. So would not hurt to make it persistent.

[dotancohen (dotancohen)]

Thanks, Jaap, this fix will help a lot, especially when sharing information with others (I paste a lot).

I filed a separate issue on the newlines in other apps:
https://bugs.launchpad.net/zim/+bug/510701

[Jaap Karssenberg (jaap.karssenberg)]

From duplicate: also think about the case where the user selects some text, navigates to a different page and tries to paste it.