1af07c7952
Replaces scroll_fraction-only position tracking with element-based
anchors ("{index}:{innerFraction}"). Position is now stable across
font size changes and different screen sizes. A ResizeObserver
restores the anchor on viewport/orientation changes.
Falls back to scroll_fraction for books without a saved anchor.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
59 lines
2.3 KiB
Python
59 lines
2.3 KiB
Python
from django.db import models
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from django.contrib.auth.models import User
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class EBook(models.Model):
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user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='ebooks')
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meta_ct = models.TextField() # base64 AES-GCM ciphertext of {title, author, filename}
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meta_iv = models.CharField(max_length=32) # hex IV for metadata
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data_ct = models.TextField() # base64 AES-GCM ciphertext of raw EPUB bytes
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data_iv = models.CharField(max_length=32) # hex IV for EPUB data
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uploaded_at = models.DateTimeField(auto_now_add=True)
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class Meta:
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ordering = ['uploaded_at']
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def __str__(self):
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return f"EBook #{self.pk} (user={self.user_id})"
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class EBookProgress(models.Model):
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user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='ebook_progress')
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book = models.ForeignKey(EBook, on_delete=models.CASCADE, related_name='progress')
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scroll_fraction = models.FloatField(default=0.0)
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position_anchor = models.CharField(max_length=30, blank=True, default='')
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updated_at = models.DateTimeField(auto_now=True)
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class Meta:
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unique_together = ('user', 'book')
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def __str__(self):
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return f"Progress book={self.book_id} user={self.user_id} {self.scroll_fraction:.2f}"
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class EBookHighlights(models.Model):
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user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='ebook_highlights')
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book = models.ForeignKey(EBook, on_delete=models.CASCADE, related_name='highlights')
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ct = models.TextField() # base64 AES-GCM ciphertext of JSON array
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iv = models.CharField(max_length=32) # hex IV
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updated_at = models.DateTimeField(auto_now=True)
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class Meta:
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unique_together = ('user', 'book')
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def __str__(self):
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return f"Highlights book={self.book_id} user={self.user_id}"
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class EBookBookmarks(models.Model):
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user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='ebook_bookmarks')
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book = models.ForeignKey(EBook, on_delete=models.CASCADE, related_name='bookmarks')
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ct = models.TextField()
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iv = models.CharField(max_length=32)
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updated_at = models.DateTimeField(auto_now=True)
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class Meta:
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unique_together = ('user', 'book')
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def __str__(self):
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return f"Bookmarks book={self.book_id} user={self.user_id}"
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