327413 2026-10-13 09:21:33 -0700 [GTK][WPE] Input method commit without a preedit dispatches compositionend without compositionstart 2026-10-15 07:11:20 -0700 1 1 1 Unclassified WebKit WPE WebKit WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=84394 https://bugs.webkit.org/show_bug.cgi?id=327694 P2 Normal --- 1 spena fujii bugs-noreply cgarcia fujii oldest_to_newest 2263253 0 spena 2026-10-13 09:21:33 -0700 When an input method commits text without a preedit, for example a keyboard that commits a whole suggestion at once, the page receives compositionend, and a beforeinput with inputType insertFromComposition, but no compositionstart. InputMethodFilter::committed() calls webkitWebViewConfirmComposition(), which ends in Editor::setComposition(text, ConfirmComposition). That always dispatches compositionend, whether or not a composition was in progress. Steps (API test): focus a textarea, then emit "committed" with "hello" on the input method context, with no preedit before it. The text is inserted, and the page gets one compositionend and no compositionstart. Expected: either no composition events, with the text inserted as typing (inputType insertText), or a compositionstart before the compositionend. Pages that track composition state, such as rich text editors, can be confused by an unpaired compositionend. Seen first with wpe-android, whose keyboard integration commits every suggestion this way. Bug 84394 reported the same symptom in 2012 for number keys typed through an input method. Today's key handling path skips one-character commits, but commits outside key handling still get an unpaired compositionend. 2263802 1 fujii 2026-10-14 06:47:32 -0700 Pull request: https://github.com/WebKit/WebKit/pull/77005 2264321 2 ews-feeder 2026-10-15 00:50:23 -0700 Committed 323806@main (30178fb84c6f): <https://commits.webkit.org/323806@main> Reviewed commits have been landed. Closing PR #77005 and removing active labels.