Bug 245269 – setBaseAndExtent not setting focus as requested

• Component: HTML Editing
• Status: RESOLVED CONFIGURATION CHANGED

[Jamie Birch]

Created attachment 462386 [details]
HTML file reproducing the issue.

STR:

1: Open attachment: setbaseandextent_not_setting_focus_as_requested_repro.html

2. Click the "Generate selection" button.

Expected results:
On-screen logger should report the resulting selection, which reflects the focusNode and focusOffset passed as parameters in the call to Selection.setBaseTextAndExtent():

{
    "focusNode": "#text:Text outside:",
    "focusOffset": 13,
    "anchorNode": "#text:_",
    "anchorOffset": 1
}

Actual results:
On-screen logger reports a different focusNode and focusOffset (the start of the text node from the neighbouring element):
{
    "focusNode": "#text:_",
    "focusOffset": 0,
    "anchorNode": "#text:_",
    "anchorOffset": 1
}

Firefox and Chrome produce the expected results.

[Radar WebKit Bug Importer]

<rdar://problem/100254222>

[Karl Dubost]

Spec: https://w3c.github.io/selection-api/#dom-selection-setbaseandextent
Tests: https://wpt.fyi/results/selection/setBaseAndExtent.html?label=experimental&label=master&aligned

I wonder how reliable the tests are with regards to the current spec.

[Ahmad Saleem]

I think Selection API ‘Live Range’ fixed it since now we are passing all WPT tests cases mentioned by Comment 02 and also in the attached, I am gettign “Expected Result” using WebKit ToT and Safari Technology Preview 165.

{
    "focusNode": "#text:Text outside:",
    "focusOffset": 13,
    "anchorNode": "#text:_",
    "anchorOffset": 1
}

[Ryosuke Niwa]

Nice