UI plugin detect device connected?

jgoguen · 02-27-2014, 04:58 PM

Is there a way, with a plugin other than a device interface plugin, to detect when a device is connected and get at the instance of the device plugin object? What I'm looking to accomplish is to have a plugin that, when a device is connected, checks to see if it's a subclass of the KoboTouch class and display information about the device.

davidfor · 02-27-2014, 06:54 PM

Have a look at my Kobo Utilities plugin. I do that already. And there is code that triggers a job when the device is connected. And if you are considering what I think you are, it's something that could be added to the plugin. As Kovid always says, "Patches are welcome"

jgoguen · 02-27-2014, 07:18 PM

Quote:

Originally Posted by davidfor

And if you are considering what I think you are, it's something that could be added to the plugin.

Guess it's a little obvious when I get an idea in my head

Send me a link to the latest source, or should I just use the code in the current plugin release?

davidfor · 02-27-2014, 08:03 PM

Quote:

Originally Posted by jgoguen

Guess it's a little obvious when I get an idea in my head

In this case, yes. I had just played with the URL and was thinking about it as well.

Quote:

Send me a link to the latest source, or should I just use the code in the current plugin release?

The current version is good. I have some changes, but nothing that will affect you or a merge.

chaley · 02-28-2014, 03:53 AM

Off topic, but perhaps of interest for you kobo folks. We added an interface to the device driver system to permit a device to update (sync) book-on-device info to the calibre db during book matching. I have vague memories of discussions about people wanting to do that with kobo shelves (?). Look at devices.interface.synchronize_with_db. You can see an example of its use in devices.smart_device_app.driver, where an "is_read" indication and date are synced.

davidfor · 02-28-2014, 05:26 AM

Am I allowed to say "Now you tell me"? I have a reading status fetch in my Kobo utilities plugin, but that looks like it could have gone into the driver with no real performance penalty. I'll have a look at it.

chaley · 02-28-2014, 05:42 AM

Quote:

Originally Posted by davidfor

Am I allowed to say "Now you tell me"? I have a reading status fetch in my Kobo utilities plugin, but that looks like it could have gone into the driver with no real performance penalty. I'll have a look at it.

We put it in this week.

As for performance, of course YMMV depending on what you do but my experience when using the new DB methods is that the penalty is minimal. No syncing needed == nanoseconds. Syncing calibre to device probably incurs no penalty. Syncing device to calibre incurs only the calls to the DB methods to set calibre's data, which are fast.

davidfor · 02-28-2014, 06:13 AM

Quote:

Originally Posted by chaley

We put it in this week.

That makes me feel better

Though I didn't notice anything in changelog. But, I just found the commits with some comments.

Quote:

As for performance, of course YMMV depending on what you do but my experience when using the new DB methods is that the penalty is minimal. No syncing needed == nanoseconds. Syncing calibre to device probably incurs no penalty. Syncing device to calibre incurs only the calls to the DB methods to set calibre's data, which are fast.

Yes, I would expect any performance hit to be only noticeable with a lot of books on the device. When I have a play, I'll see.

02-27-2014, 04:58 PM	#1
jgoguen Generally Awesome Person Posts: 1,100 Karma: 2191133 Join Date: Jan 2013 Location: /dev/kmem Device: Kobo Clara HD, Kindle Oasis	UI plugin detect device connected? Is there a way, with a plugin other than a device interface plugin, to detect when a device is connected and get at the instance of the device plugin object? What I'm looking to accomplish is to have a plugin that, when a device is connected, checks to see if it's a subclass of the KoboTouch class and display information about the device.

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02-27-2014, 06:54 PM	#2
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Have a look at my Kobo Utilities plugin. I do that already. And there is code that triggers a job when the device is connected. And if you are considering what I think you are, it's something that could be added to the plugin. As Kovid always says, "Patches are welcome"

02-28-2014, 03:53 AM	#5
chaley Grand Sorcerer Posts: 12,375 Karma: 8012652 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	Off topic, but perhaps of interest for you kobo folks. We added an interface to the device driver system to permit a device to update (sync) book-on-device info to the calibre db during book matching. I have vague memories of discussions about people wanting to do that with kobo shelves (?). Look at devices.interface.synchronize_with_db. You can see an example of its use in devices.smart_device_app.driver, where an "is_read" indication and date are synced.

02-28-2014, 05:26 AM	#6
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Am I allowed to say "Now you tell me"? I have a reading status fetch in my Kobo utilities plugin, but that looks like it could have gone into the driver with no real performance penalty. I'll have a look at it.