Adding image to notes

azuravian · 12-09-2023, 03:02 AM

Hello,

I'm creating a plugin that grabs author information and adds it to notes. I've looked through the API documentation and thought I had everything figured out, but I'm running into a wall.

I'm creating an html table that contains various author info. For the picture, I'm using pythons requests module to get image data from a url and then using Calibre's add_notes_resource function to create the resource. I'm using the hash to add an <img> tag to the table.

When the note is created, the img source is empty.

As a test, I had my code print out the final html block that is imported using the import_note function.

This block has the img source, and if I manually take this html block and add it to the note as html source, the image shows up, so I know the resource is being created correctly.

I'm just unsure why the src part of the image tag is being deleted when being imported as a note.

kovidgoyal · 12-09-2023, 06:23 AM

Use import_note() to import your html file. Embed the images using data: URLs in the html

azuravian · 12-09-2023, 06:40 PM

Ooof, didn't even think about using data: URLs and was banging my head trying to get the notes resources working. Tested data: URLs and everything is great.

azuravian · 12-10-2023, 03:06 AM

One quick follow-up question to this. Is there a function to completely delete a note? I don't even see a way to do it through the Calibre interface? For now, I'm just replacing the note with an empty note, but that still leaves the author names in the "Book Details" panel as having notes (i.e. they have the pencil icon next to the name).

BetterRed · 12-10-2023, 03:19 AM

Quote:

Originally Posted by azuravian

One quick follow-up question to this. Is there a function to completely delete a note? I don't even see a way to do it through the Calibre interface? For now, I'm just replacing the note with an empty note, but that still leaves the author names in the "Book Details" panel as having notes (i.e. they have the pencil icon next to the name).

Are you sure it's empty.

I got caught by stray white space, now I Ctrl+A in HTML Tab, press Del, then press Ctrl+Numpad-Del. Pencil gone.

BR

chaley · 12-10-2023, 05:30 AM

Quote:

Originally Posted by azuravian

One quick follow-up question to this. Is there a function to completely delete a note? I don't even see a way to do it through the Calibre interface? For now, I'm just replacing the note with an empty note, but that still leaves the author names in the "Book Details" panel as having notes (i.e. they have the pencil icon next to the name).

You can delete a note in the Manage categories window for the category. For example, in Book details, right-click on the item, choose "Manage ...", right-click in the note column, select "Delete".

I will look at adding "Delete" to the note context menu in book details. EDIT: change in calibre source.

azuravian · 12-10-2023, 08:50 AM

Just to clarify, if I delete the entire note from the HTML tab, it does remove the pencil. If I perform a import_note() where the data to import is empty, it removes the content, but does not remove the pencil.

I just tested, and on those where I have cleared the note using the import_note() function, I can open the note, go to HTML and click OK (without changing anything) and the pencil goes away, so there's definitely nothing in there.

kovidgoyal · 12-10-2023, 09:10 AM

Importing an empty note does not delete the note it just sets it to an empty document. Use set_notes_for() with an empty document to delete the note instead. importing is meant for importing actual notes.

chaley · 12-10-2023, 09:10 AM

Quote:

Originally Posted by azuravian

Just to clarify, if I delete the entire note from the HTML tab, it does remove the pencil. If I perform a import_note() where the data to import is empty, it removes the content, but does not remove the pencil.

I just tested, and on those where I have cleared the note using the import_note() function, I can open the note, go to HTML and click OK (without changing anything) and the pencil goes away, so there's definitely nothing in there.

I assume you are calling import_note() via your plugin on a book open in the book details pane. Are you telling the GUI that you changed something? Book details won't know otherwise. You can tell the GUI that some field changed using

Code:

gui.do_field_item_value_changed()

I suspect that the pencil will go away if you select a different book then select the original again, which is another way of refreshing the GUI.

kovidgoyal · 12-10-2023, 09:12 AM

And yes you have ot refresh the gui after deleting as charles points out.

azuravian · 12-12-2023, 12:18 AM

Thank you everyone. This got everything sorted.

12-09-2023, 03:02 AM	#1
azuravian Enthusiast Posts: 32 Karma: 63058 Join Date: Feb 2012 Device: Kobo Aura One	Adding image to notes Hello, I'm creating a plugin that grabs author information and adds it to notes. I've looked through the API documentation and thought I had everything figured out, but I'm running into a wall. I'm creating an html table that contains various author info. For the picture, I'm using pythons requests module to get image data from a url and then using Calibre's add_notes_resource function to create the resource. I'm using the hash to add an <img> tag to the table. When the note is created, the img source is empty. As a test, I had my code print out the final html block that is imported using the import_note function. This block has the img source, and if I manually take this html block and add it to the note as html source, the image shows up, so I know the resource is being created correctly. I'm just unsure why the src part of the image tag is being deleted when being imported as a note.

12-09-2023, 06:23 AM	#2
kovidgoyal creator of calibre Posts: 45,176 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Use import_note() to import your html file. Embed the images using data: URLs in the html Last edited by kovidgoyal; 12-09-2023 at 06:26 AM.

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12-09-2023, 06:40 PM	#3
azuravian Enthusiast Posts: 32 Karma: 63058 Join Date: Feb 2012 Device: Kobo Aura One	Ooof, didn't even think about using data: URLs and was banging my head trying to get the notes resources working. Tested data: URLs and everything is great.

12-10-2023, 03:06 AM	#4
azuravian Enthusiast Posts: 32 Karma: 63058 Join Date: Feb 2012 Device: Kobo Aura One	One quick follow-up question to this. Is there a function to completely delete a note? I don't even see a way to do it through the Calibre interface? For now, I'm just replacing the note with an empty note, but that still leaves the author names in the "Book Details" panel as having notes (i.e. they have the pencil icon next to the name).

12-10-2023, 08:50 AM	#7
azuravian Enthusiast Posts: 32 Karma: 63058 Join Date: Feb 2012 Device: Kobo Aura One	Just to clarify, if I delete the entire note from the HTML tab, it does remove the pencil. If I perform a import_note() where the data to import is empty, it removes the content, but does not remove the pencil. I just tested, and on those where I have cleared the note using the import_note() function, I can open the note, go to HTML and click OK (without changing anything) and the pencil goes away, so there's definitely nothing in there.

12-10-2023, 09:10 AM	#8
kovidgoyal creator of calibre Posts: 45,176 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Importing an empty note does not delete the note it just sets it to an empty document. Use set_notes_for() with an empty document to delete the note instead. importing is meant for importing actual notes.

12-10-2023, 09:12 AM	#10
kovidgoyal creator of calibre Posts: 45,176 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	And yes you have ot refresh the gui after deleting as charles points out.

12-12-2023, 12:18 AM	#11
azuravian Enthusiast Posts: 32 Karma: 63058 Join Date: Feb 2012 Device: Kobo Aura One	Thank you everyone. This got everything sorted.