Calibre 5.0: Copying HTML/rich text in ePub doesn't work anymore

barro350 · 09-25-2020, 03:32 AM

Platform: Desktop, Windows 10

---

I'm trying Calibre 5.0, and the new highlighting feature feels really great!

By the way, I've noticed that, after upgrading to v5.0, copying a text segment in the Calibre viewer does not work as it did in v4.xx.

Suppose a source xhtml file of an ePub file contains something like `<span class="orange">emphasized</span> text`. In Calibre v4.xx copying this text segment would store it in the clipboard as the rich text format so that pasting it to other applications preserves the formatting. e.g., I could paste the text to get `<span style="color: rgb(255, 102, 0);">emphasized</span> text` in an HTML editor.

However, in Calibre v5.0, it seems that copy-and-paste always works in the plain-text mode and any formatting information is erased.

Is the removal of this feature intended? Or, is there a setting to tweak this behavior?

kovidgoyal · 09-25-2020, 03:46 AM

There are no changes to this in calibre code, it could be that something changed in Qt WebEngine (the library used for rendering html) that was updated as part of calibre 5.

barro350 · 09-25-2020, 09:48 AM

Thank you for your quick reply.

I have no experience in PyQt, but in another open-source application (Anki) using newest version of QTWebengine, v5.15.0, QTWebenginePage.copy() properly copies selected text into multiple formats. (Perhaps this observation is of useless, though.)

Another bug in copying text is as follows:

## Steps for reproduction

1. Open an ePub file.

2. Activate a toolbar in the left side of the Calibre viewer. (Preferences -> Miscellaneous -> Show a toolbar with the most useful actions)

3. Select a text segment and click the 'Copy to Clipboard' button in the toolbar.

## Expected behavior (the behavior in v4.23)

The text segment is copied to clipboard in various formats (including HTML).

## Actual behavior (the behavior in v5)

Nothing happens. It doesn't copy anything, even as a plain text.

kovidgoyal · 09-25-2020, 10:01 AM

OK open a ticket for it, I will look into it when I have a moment.

09-25-2020, 03:32 AM	#1
barro350 Junior Member Posts: 2 Karma: 10 Join Date: Sep 2020 Device: Desktop (Windows)	Calibre 5.0: Copying HTML/rich text in ePub doesn't work anymore Platform: Desktop, Windows 10 --- I'm trying Calibre 5.0, and the new highlighting feature feels really great! By the way, I've noticed that, after upgrading to v5.0, copying a text segment in the Calibre viewer does not work as it did in v4.xx. Suppose a source xhtml file of an ePub file contains something like `<span class="orange">emphasized</span> text`. In Calibre v4.xx copying this text segment would store it in the clipboard as the rich text format so that pasting it to other applications preserves the formatting. e.g., I could paste the text to get `<span style="color: rgb(255, 102, 0);">emphasized</span> text` in an HTML editor. However, in Calibre v5.0, it seems that copy-and-paste always works in the plain-text mode and any formatting information is erased. Is the removal of this feature intended? Or, is there a setting to tweak this behavior?

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09-25-2020, 03:46 AM	#2
kovidgoyal creator of calibre Posts: 44,362 Karma: 23752080 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There are no changes to this in calibre code, it could be that something changed in Qt WebEngine (the library used for rendering html) that was updated as part of calibre 5.

09-25-2020, 09:48 AM	#3
barro350 Junior Member Posts: 2 Karma: 10 Join Date: Sep 2020 Device: Desktop (Windows)	Thank you for your quick reply. I have no experience in PyQt, but in another open-source application (Anki) using newest version of QTWebengine, v5.15.0, QTWebenginePage.copy() properly copies selected text into multiple formats. (Perhaps this observation is of useless, though.) Another bug in copying text is as follows: ## Steps for reproduction 1. Open an ePub file. 2. Activate a toolbar in the left side of the Calibre viewer. (Preferences -> Miscellaneous -> Show a toolbar with the most useful actions) 3. Select a text segment and click the 'Copy to Clipboard' button in the toolbar. ## Expected behavior (the behavior in v4.23) The text segment is copied to clipboard in various formats (including HTML). ## Actual behavior (the behavior in v5) Nothing happens. It doesn't copy anything, even as a plain text.

09-25-2020, 10:01 AM	#4
kovidgoyal creator of calibre Posts: 44,362 Karma: 23752080 Join Date: Oct 2006 Location: Mumbai, India Device: Various	OK open a ticket for it, I will look into it when I have a moment.

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