Feature: Hotkey to open “Add Comment” dialog for current text selection

[worldlyjohn]

Summary

Add a configurable hotkey/command that opens the comment dialog immediately for the user’s current text selection. This makes commenting faster than using the mouse/menus.

User story

As a user, when I highlight text in the editor, I want to press a hotkey to open the SideNote comment dialog with that selection pre-filled, so I can add a comment without leaving the keyboard.

Proposed UX

• User selects text in the active editor.
• User presses a hotkey (default suggestion: none, user-configurable via Obsidian hotkeys).
• SideNote opens the “Add Comment” dialog:
  • selection is pre-populated / stored as the anchor (same as current selection-based workflow, if any)
  • cursor focus goes to the comment input field
• If no text is selected:
  • either show a Notice like “Select text to add a comment” (recommended), or
  • open dialog but require the user to select text first.

Implementation notes

• Add a command in onload():
  • e.g. this.addCommand({ id: 'sidenote-add-comment-from-selection', name: 'Add comment from selection', ... })
• In the callback:
  • get the active MarkdownView and editor: this.app.workspace.getActiveViewOfType(MarkdownView)?.editor
  • read selection: editor.getSelection()
  • validate non-empty selection
  • open the same modal/dialog used elsewhere for adding comments, passing the selection + location metadata as needed
• Ensure it works for:
  • Reading view vs source/live preview (if applicable)
  • Multiple cursors (take primary selection or first range)

Acceptance criteria

• Command “Add comment from selection” appears in command palette.
• User can bind a hotkey in Obsidian settings.
• With non-empty selection, hotkey opens comment dialog and focuses input.
• With empty selection, a Notice is shown (or documented alternate behavior).
• Works in the active editor for Markdown files.

Optional enhancements

• Setting to optionally allow “comment at cursor” when no selection.
• Add a ribbon icon / context menu item that triggers the same command.

[mofukuru]

The command "Side Note: Add comment to selection" is available in the command palette and can be bound to a hotkey via Settings → Hotkeys (search for "Side Note").

With text selected, the hotkey opens the comment dialog with focus on the input field. If nothing is selected (or fewer than 3 characters), a Notice is shown instead.

The command is also accessible via the right-click context menu → "Add comment to selection".

Let me know if anything isn't working as expected!