Bug 112329 – REGRESSION: WebKit doesn't preserve style when copying text from another element

• Status: RESOLVED
• Resolution: CONFIGURATION CHANGED
• Component: HTML Editing

[Ryosuke Niwa]

Reproduction steps:
1. Go to http://jsfiddle.net/fns4w/
2. Copy "Copy this" at the bottom
3. Paste it after "todispaly"

Expected result:
The pasted text has the font size of 50px

Actual result:
The pasted text has the default font size

[Radar WebKit Bug Importer]

<rdar://problem/13435950>

[Pravin D]

Created attachment 194803 [details]
Approach 1

[WebKit Review Bot]

Comment on attachment 194803 [details]
Approach 1

Attachment 194803 [details] did not pass chromium-ews (chromium-xvfb):
Output: http://webkit-commit-queue.appspot.com/results/17308243

New failing tests:
editing/pasteboard/5761530-1.html
editing/pasteboard/paste-and-sanitize.html
editing/pasteboard/copy-null-characters.html
editing/pasteboard/paste-blockquote-2.html
editing/deleting/merge-paragraph-from-h6-with-style.html
editing/deleting/merge-paragraph-into-pre.html
editing/deleting/merge-paragraph-from-address.html
editing/pasteboard/paste-blockquote-3.html
editing/deleting/merge-paragraph-into-h1.html
editing/pasteboard/paste-text-with-style-4.html
editing/deleting/merge-paragraph-from-listing.html
editing/deleting/merge-paragraph-from-p-with-style-2.html
editing/deleting/merge-paragraph-into-h1-with-dir-2.html
editing/deleting/merge-paragraph-into-h1-with-dir.html
editing/deleting/merge-paragraph-with-style-from-rule.html
editing/deleting/merge-paragraph-from-h6.html
editing/deleting/merge-paragraph-into-h1-with-style.html
editing/deleting/merge-paragraph-from-p-with-style.html
editing/deleting/delete-to-end-of-paragraph.html
editing/deleting/merge-paragraph-from-p-with-style-3.html
editing/deleting/merge-paragraph-from-h6-with-style-2.html
editing/deleting/merge-whitespace-pre.html
editing/deleting/deleting-line-break-preserves-underline-color.html

[WebKit Review Bot]

Created attachment 194881 [details]
Archive of layout-test-results from gce-cr-linux-08 for chromium-linux-x86_64

The attached test failures were seen while running run-webkit-tests on the chromium-ews.
Bot: gce-cr-linux-08  Port: chromium-linux-x86_64  Platform: Linux-3.3.8-gcg-201212281604-x86_64-with-GCEL-10.04-gcel_10.04

[Ryosuke Niwa]

Created attachment 196093 [details]
Reduction

The problem is in ReplaceSelectionCommand::removeRedundantStylesAndKeepStyleSpanInline. We’re removing font-size & color
via removeStyleFromRulesAndContext since they’re duplicated in the style rules.

Since the inline style is now empty, we end up erronrously removing span and those rules stops applying to the text.

[Ryosuke Niwa]

This is a regression from Safari 6.0.2.

[Ryosuke Niwa]

This is probably a regression from http://trac.webkit.org/changeset/96870.

[Ryosuke Niwa]

Created attachment 197924 [details]
Work in progress changes

Some work in progress changes for the record. This approach is wrong.

[Ryosuke Niwa]

For the future myself, to fix this bug, I need to distinguish cases where users are deleting paragraphs and we’re merging paragraphs as a part of other operations. In the latter case, we need to preserve all styles including that of style rules for blocks.

[Grzegorz Czajkowski]

*** Bug 115027 has been marked as a duplicate of this bug. ***

[Pravin D]

Created attachment 204984 [details]
Patch

[Build Bot]

Comment on attachment 204984 [details]
Patch

Attachment 204984 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.appspot.com/results/945237

New failing tests:
editing/deleting/deleting-line-break-preserves-underline-color.html

[Build Bot]

Created attachment 205008 [details]
Archive of layout-test-results from webkit-ews-08 for mac-mountainlion

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: webkit-ews-08  Port: mac-mountainlion  Platform: Mac OS X 10.8.3

[Build Bot]

Comment on attachment 204984 [details]
Patch

Attachment 204984 [details] did not pass win-ews (win):
Output: http://webkit-queues.appspot.com/results/926251

New failing tests:
editing/deleting/deleting-line-break-preserves-underline-color.html

[Build Bot]

Created attachment 205011 [details]
Archive of layout-test-results from APPLE-EWS-2 for win-future

The attached test failures were seen while running run-webkit-tests on the win-ews.
Bot: APPLE-EWS-2  Port: win-future  Platform: CYGWIN_NT-6.1-WOW64-1.7.20-0.266-5-3-i686-32bit

[Build Bot]

Comment on attachment 204984 [details]
Patch

Attachment 204984 [details] did not pass win-ews (win):
Output: http://webkit-queues.appspot.com/results/926269

New failing tests:
editing/deleting/deleting-line-break-preserves-underline-color.html

[Build Bot]

Created attachment 205021 [details]
Archive of layout-test-results from APPLE-EWS-5 for win-future

The attached test failures were seen while running run-webkit-tests on the win-ews.
Bot: APPLE-EWS-5  Port: win-future  Platform: CYGWIN_NT-6.1-WOW64-1.7.20-0.266-5-3-i686-32bit

[Build Bot]

Comment on attachment 204984 [details]
Patch

Attachment 204984 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.appspot.com/results/880486

New failing tests:
editing/deleting/deleting-line-break-preserves-underline-color.html
http/tests/security/cross-origin-plugin-private-browsing-toggled.html

[Build Bot]

Created attachment 205069 [details]
Archive of layout-test-results from webkit-ews-09 for mac-mountainlion-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: webkit-ews-09  Port: mac-mountainlion-wk2  Platform: Mac OS X 10.8.3

[Pravin D]

Created attachment 205586 [details]
Patch

[Build Bot]

Comment on attachment 205586 [details]
Patch

Attachment 205586 [details] did not pass win-ews (win):
Output: http://webkit-queues.appspot.com/results/999024

New failing tests:
fast/js/global-constructors-attributes-shared-worker.html
fast/js/global-constructors-attributes-dedicated-worker.html

[Build Bot]

Created attachment 205628 [details]
Archive of layout-test-results from APPLE-EWS-4 for win-future

The attached test failures were seen while running run-webkit-tests on the win-ews.
Bot: APPLE-EWS-4  Port: win-future  Platform: CYGWIN_NT-6.1-WOW64-1.7.20-0.266-5-3-i686-32bit

[Brady Eidson]

Comment on attachment 205586 [details]
Patch

Assuming that patches for review since 2013 are stale, r-

[Ahmad Saleem]

Using link from URL field, I am not able to reproduce this bug in Safari Technology Preview 159 and it is matching with Chrome Canary 110, where the copy result in 50px text in green color while in case of Firefox Nightly 109, I am getting weird "New Line" in between copied text and contenteditable text.

Just wanted to share updated results. Thanks!

[Ryosuke Niwa]

Yeah, this is working now.