Pasting from Microsoft Word raises Exceptions

[lundmark]

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Flutter Quill Version

11.0.0

Steps to Reproduce

1. Start the flutter quill test
2. Open a document in Microsoft Word
3. Copy a formatted section of text from Microsoft Word
4. Paste into the flutter editor.
5. Observe exception in default_clipboard_instance.dart line 19.

It seems like it's trying (and failing) to parse the html-version of the paste that's being sent. Microsoft Word also puts things in several different clipboards, among other the rich text which I think should be preferred in this way if the html-parser raises and exception.

Expected results

I'd expect the rich-text formatted text from word to be pasted into the Quill editor, appearing as

Actual results

Multiple exceptions and no text pasted into the Quill editor.

Additional Context

No response

[EchoEllet]

Are you testing on Windows? Could you please provide the error details including the stack trace?

[nano1209]

same problem, when paste from word in Windows (desktop app)

[lundmark]

Hi!

Yes this is on windows.

Here is the callstack:

_Utf8Decoder.convertSingle (d:\work\flutter_sdk\flutter\bin\cache\pkg\sky_engine\lib\_internal\vm\lib\convert_patch.dart:1855) Utf8Decoder.convert (d:\work\flutter_sdk\flutter\bin\cache\pkg\sky_engine\lib\convert\utf.dart:351) Utf8Codec.decode (d:\work\flutter_sdk\flutter\bin\cache\pkg\sky_engine\lib\convert\utf.dart:64) Utf8Pointer.toDartString (c:\Users\simon\AppData\Local\Pub\Cache\hosted\pub.dev\ffi-2.1.3\lib\src\utf8.dart:48) QuillNativeBridgeWindows.getClipboardHtml (c:\Users\simon\AppData\Local\Pub\Cache\hosted\pub.dev\quill_native_bridge_windows-0.0.1\lib\quill_native_bridge_windows.dart:87) QuillNativeBridge.getClipboardHtml (c:\Users\simon\AppData\Local\Pub\Cache\hosted\pub.dev\quill_native_bridge-11.0.0\lib\quill_native_bridge.dart:64) DefaultClipboardService.getHtmlText (d:\work\code\flutter_quill\flutter-quill\lib\src\editor_toolbar_controller_shared\clipboard\default_clipboard_service.dart:19) <asynchronous gap> (Unknown Source:0) QuillControllerRichPaste.pasteHTML.getHTML (d:\work\code\flutter_quill\flutter-quill\lib\src\controller\clipboard\quill_controller_rich_paste.dart:25) <asynchronous gap> (Unknown Source:0) QuillControllerRichPaste.pasteHTML (d:\work\code\flutter_quill\flutter-quill\lib\src\controller\clipboard\quill_controller_rich_paste.dart:36) <asynchronous gap> (Unknown Source:0) QuillController.clipboardPaste (d:\work\code\flutter_quill\flutter-quill\lib\src\controller\quill_controller.dart:572) <asynchronous gap> (Unknown Source:0) QuillRawEditorState.pasteText (d:\work\code\flutter_quill\flutter-quill\lib\src\editor\raw_editor\raw_editor_state.dart:145) <asynchronous gap> (Unknown Source:0)

And the exception is:
FormatException (FormatException: Unexpected extension byte (at offset 52848))

It is not a 100% bug and depends on what you paste in. When I try to paste in other stuff, like something easy, then the following can happen:

SourceURL:file:///<REDACTED DOCUMENT NAME>Here is some text I want to copy from word

Where "Here is some text I want to copy from word" was the text in the word document I copied.

[EchoEllet]

Could you try using the quill_super_clipboard implementation to see if this issue is reproducible?

Instructions

Add the dependency:

flutter pub add quill_super_clipboard

Then call QuillSuperClipboard.use:

import 'package:quill_super_clipboard/quill_super_clipboard.dart';

QuillSuperClipboard.use();

The issue might be with getClipboardHtml or html_formatter.dart or the HTML-to-delta parser.

Last time I tested on Windows 10 VM and didn't found any issues.

[EchoEllet]

This is the related line however we need to conform if this issue is reproducible with super_clipboard.

[lundmark]

Sorry, I haven't had the time to try it out with super clipboard yet. Will let you know as soon as I get some time to set it up.