[GUI Plugin] Action Chains

[ownedbycats]

That fixed it.

I must've accidentally deleted it while removing the reverted column-name tweak. (That explains why updating to 6.17 seemed to break it.)

[ownedbycats]

Would it be possible to make a module that replicates the behaviour of the 'paste' button in the identifiers field?

[capink]

Originally Posted by ownedbycats

Would it be possible to make a module that replicates the behaviour of the 'paste' button in the identifiers field?

I don't understand. What is special about identifiers paste that would make you want to create a module?

[ownedbycats]

The 'paste' button will convert the URL to an id if there's a rule for it. (The tooltip only mentions isbn and url but that's a mistake.) This would let me copy the link of a goodreads or fantasticfiction page from browser and then paste it without opening the MDE.

[capink]

That is not something I would be interested in.

[chaley]

Originally Posted by ownedbycats

The 'paste' button will convert the URL to an id if there's a rule for it. (The tooltip only mentions isbn and url but that's a mistake.) This would let me copy the link of a goodreads or fantasticfiction page from browser and then paste it without opening the MDE.

Here is a python template that contains a copy of the base calibre code the the MDE uses. It returns the ID:VAL pair for a URL in the clipboard, if possible. You should be able to use it in a Copy to Clipboard action.

python:


def parse_clipboard_for_identifier():
    from calibre.ebooks.metadata.sources.prefs import msprefs
    from calibre.utils.formatter import EvalFormatter
	from qt.core import QApplication
	import re
    text = str(QApplication.clipboard().text()).strip()
    if not text:
        return None

    rules = msprefs['id_link_rules']
    if rules:
        formatter = EvalFormatter()
        vals = {'id' : '__ID_REGEX_PLACEHOLDER__'}
        for key in rules.keys():
            rule = rules[key]
            for name, template in rule:
                try:
                    url_pattern = formatter.safe_format(template, vals, '', vals)
                    url_pattern = re.escape(url_pattern).replace('__ID_REGEX_PLACEHOLDER__', '(?P<new_id>.+)')
                    if url_pattern.startswith('http:') or url_pattern.startswith('https:'):
                        url_pattern = '(?:http|https):' + url_pattern.partition(':')[2]
                    new_id = re.compile(url_pattern)
                    new_id = new_id.search(text).group('new_id')
                    if new_id:
                        vals = {}
                        vals[key] = new_id
                        return vals
                except Exception:
                    import traceback
                    traceback.print_exc()
                    continue

    from calibre.customize.ui import all_metadata_plugins

    for plugin in all_metadata_plugins():
        try:
            identifier = plugin.id_from_url(text)
            if identifier:
                vals = {}
                vals[identifier[0]] = identifier[1]
                return vals
        except Exception:
            pass

    return None

def evaluate(book, context):
	x = parse_clipboard_for_identifier()
	if x:
		return ', '.join(k + ':' + v for k,v in x.items())
	return ''

[ownedbycats]

Thanks. Copies to clipboard works

Is there a way to pass the clipboard contents to a SFE? I was thinking maybe a chain variable. Or maybe I can just add the template itself to the variable.

EDIT: To add directly, I put the template in a variable called copied_id and then used this:

program:

newid = globals(copied_id);

list_union(newid, $identifiers, ',')

[chaley]

Originally Posted by ownedbycats

Is there a way to pass the clipboard contents to a SFE? I was thinking maybe a chain variable. Or maybe I can just add the template itself to the variable.

The template produces a string. You can do whatever you want with it.

EDIT: or are you asking if you can get the actual clipboard contents? Yes. This line in the template does that.

text = str(QApplication.clipboard().text()).strip()

You could store this template to use in other templates:

python:
def evaluate(book, context):
	from qt.core import QApplication
	return str(QApplication.clipboard().text()).strip()

[dragoworld235]

Hi, is there a way to use a chain as an action in another chain?
I’m trying to use composition instead of having to rewrite every actions when creating specific chains.

An example.
I’m using custom column for the #type of ebook (book, manga… it can take more than one value, and an imported file is set to none), its #origin (bought, given), its #source (what store…), if I’ve #done cleaning it.
I’ve got a chain "1" for setting the #type to "book" (removing "none" and adding "book").
A chain "2" to set to a specific bookstore: set #origin to "bought" and #source to "7switch".
A chain "3" to set #done to true.
When working on a batch of books (for example re-importing all my bought books from the 7switch store), I would like to create a chain "4" that is just a composition of "1", then "2", then "3".

Is there already a way to do that that I’ve missed?
Thanks a lot for all the work.

[ownedbycats]

Calibre Preferences > Tweaks > Plugin Tweaks. Add action_chains_experimental = True

This will enable a 'Chain Caller' action which lets you run another chain.



It's a little slow as there's checks for recursion to prevent it getting stuck in an endless loop.

Note: While doesn't seem to be the case here, this may be useful later on: if the reason for using chain-caller is to avoid duplication of templates used for Single-Field Edits, you can use a stored template (Calibre Preferences > Template Functions > Stored Template tab).

As it skips the recursion check, using a stored template in the SFE is faster than using chain-caller on a single-action chain used to hold the template:

[dragoworld235]

Thanks, that’s exactly what I was looking for.
The slowness of the recursion checking is not a problem for me, but it’s nice to know there is a workaround if needed.

While doing some tests, I’ve noticed the chains are identified by there title, so changing it is removing its shorcut association, or breaking the Chain caller action. Not a problem for me because I won’t be renaming chains now.

Have a good day everyone.

[capink]

The recursion check does not cause any delay at all. It does not even take 0.01 of a second. This is simply a wrong impression.

[ownedbycats]

SFE: On taglikes, does 'predefined value' overwrite column contents, or adds it as a new entry?

[Philantrop]

Using version 1.18.7 I get an error when I try to add or modify an action type "Calibre Actions" and try calling its settings:

calibre, version 6.19.1
ERROR: Unhandled exception: <b>AttributeError</b>:'int' object has no attribute 'replace'

calibre 6.19.1  embedded-python: True
Linux-6.3.3-200.fc38.x86_64-x86_64-with-glibc2.37 Linux ('64bit', 'ELF')
('Linux', '6.3.3-200.fc38.x86_64', '#1 SMP PREEMPT_DYNAMIC Wed May 17 14:31:24 UTC 2023')
Python 3.10.1
Interface language: en_GB
Successfully initialized third party plugins: [...]

Traceback (most recent call last):
  File "calibre_plugins.action_chains.gui.__init__", line 46, in setup_ui
    self.widget = self.widget_cls(self.plugin_action, self.chain_name, self.chains_config)
TypeError: CalibreActionsWidget.__init__() takes 2 positional arguments but 4 were given

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "calibre_plugins.action_chains.gui.views", line 430, in _on_button_clicked
    d = SettingsWidgetDialog(name, self, self.plugin_action, config_widget, action, m.chain_name, m.chains_config, title)
  File "calibre_plugins.action_chains.gui.__init__", line 41, in __init__
    Dialog.__init__(self, title, name, parent)
  File "calibre/gui2/widgets2.py", line 225, in __init__
  File "calibre_plugins.action_chains.gui.__init__", line 51, in setup_ui
    self.widget = self.widget_cls(self.plugin_action)
  File "calibre_plugins.action_chains.actions.calibre_actions", line 162, in __init__
    self._init_controls()
  File "calibre_plugins.action_chains.actions.calibre_actions", line 197, in _init_controls
    self._populate_actions_tree(lookup_menu_map)
  File "calibre_plugins.action_chains.actions.calibre_actions", line 287, in _populate_actions_tree
    self._populate_action_children(QMenu.actions(m), tl,
  File "calibre_plugins.action_chains.actions.calibre_actions", line 307, in _populate_action_children
    text = get_title(ac, plugin_name)
  File "calibre_plugins.action_chains.actions.calibre_actions", line 74, in get_title
    safe_title = get_safe_title(action)
  File "calibre_plugins.action_chains.actions.calibre_actions", line 68, in get_safe_title
    return text.replace('&&', '—').replace('&', '').replace('—', '&')
AttributeError: 'int' object has no attribute 'replace'

[capink]

Originally Posted by ownedbycats

SFE: On taglikes, does 'predefined value' overwrite column contents, or adds it as a new entry?

It overwrites. If you want to add, use templates as we already discussed previously. This entry is already in the misc tips section in the first post.