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Handle overlap of warnings (information loss and write-only warnings)

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This commit is contained in:
Isaiah Odhner 2023-06-28 21:34:09 -04:00
parent f194583760
commit 4750c1212d
1 changed files with 15 additions and 10 deletions
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25
src/textual_paint/paint.py
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@ -2811,18 +2811,23 @@ class PaintApp(App[None]):
# This could be considered part of the text information, but could be mentioned.
# Also, it could be confusing if a file uses a lot of full block characters (█).
# TODO: is this all the formats that can't be opened?
# TODO: consider overlap between non-openable format and information loss warnings
non_openable = (format_id in ("HTML", "RICH_CONSOLE_MARKUP")) or (format_id in Image.SAVE and not format_id in Image.OPEN)
if non_openable:
# The callback argument is whether there's information loss.
# If True, it will try to load the file to show the loss, and it would error in this case.
self.confirm_save_non_openable_file(lambda: callback(False))
elif format_id in ("ANSI", "SVG", "HTML", "RICH_CONSOLE_MARKUP"):
callback(False)
elif format_id == "PLAINTEXT":
non_openable = format_id in ("HTML", "RICH_CONSOLE_MARKUP") or (format_id in Image.SAVE and not format_id in Image.OPEN)
supports_text_and_color = format_id in ("ANSI", "SVG", "HTML", "RICH_CONSOLE_MARKUP")
if format_id == "PLAINTEXT":
self.confirm_lose_color_information(lambda: callback(True))
elif supports_text_and_color:
# This is handled before Pillow's image formats, so that bespoke format support overrides Pillow.
if non_openable:
self.confirm_save_non_openable_file(lambda: callback(False))
else:
callback(False)
else:
self.confirm_lose_text_information(lambda: callback(True))
# Image formats
assert format_id in Image.SAVE, f"Unknown format ID: {format_id!r}"
if non_openable:
self.confirm_save_non_openable_file(lambda: self.confirm_lose_text_information(lambda: callback(False)))
else:
self.confirm_lose_text_information(lambda: callback(True))
async def confirm_information_loss_async(self, format_id: str) -> Coroutine[None, None, bool]:
"""Confirms discarding information when saving as a particular format. Awaitable variant, which uses the callback variant."""