v0.23.0

Added

Core

• AccessNodeBuilder::push_list_child, push_list_item_child and
  push_heading_child push a Role::List, a Role::ListItem (with its
  level and position) and a Role::Heading under a parent of the caller's
  choosing, keyed by the new SyntheticKind::RichTextList and
  SyntheticKind::RichTextListItem. A match over SyntheticKind needs
  the two new arms.
• TextSurface::accepts(StandardEdit) says whether the focused text
  widget takes Cut, Copy, Paste, Undo or the others at all in its current
  mode: a forward-only editor takes a paste and refuses a cut, which
  is_read_only cannot say. A host routing Edit commands to the focused
  surface greys its rows by it. It has a default, so an implementor written
  before it keeps compiling.

Widgets

• RichTextEditor::can_insert_line_break and
  EditorHandle::can_insert_line_break say whether insert_line_break
  would insert now: not where the break would go into a table cell or a code
  block. A menu
  row for it can grey itself out where it would do nothing. Like the call,
  they leave the command filter to the host.

Changed

Core

• TextRunSource has a new public field, spoken_as, set with
  TextRunSource::speak_as: a character a reader hears as other text, such
  as an inline image's U+FFFC heard as its description, still one character.
  Code that builds a TextRunSource with a struct literal needs the field.

Fixed

Widgets

• A RichTextEditor's context menu and touch selection toolbar offer no
  Paste when its command filter refuses one. An editor built editable and
  switched to CommandFilter::ReadOnly kept its Paste and Paste Unformatted
  rows, and they wrote into it.
• A Cut, Paste or Undo a host routes to a RichTextEditor obeys its
  command filter. Routed through TextSurface (ctx.text_surfaces()),
  Ctrl+X under CommandFilter::ForwardOnly took the selected text away, and
  Ctrl+X and Ctrl+V wrote into a read-only editor. The surface's commands now
  do what the editor's keys do; the handle's own cut and paste still
  write, for a host acting on its own account.
• Under a forward-only filter, a line break over a selection reaching into a
  code block or a table cell no longer lands there. Shift+Enter and
  insert_line_break judged the place by the caret, and the break goes in
  after the selection.
• A screen reader gets a RichTextEditor's paragraphs apart. The text
  it reads had no character between two paragraphs, so the end of one and
  the start of the next were one offset: End at the end of a paragraph read
  the next one's first letter, Right across the break was silent, a word or a
  paragraph ran on into the next one, and Enter added nothing a reader heard.
  Each paragraph now ends with its line break, as AccessKit reads a
  paragraph's end. The same holds in the read-only viewer and in table cells.
• An inline image or footnote marker in a RichTextEditor is read in its
  place, once, as its description. It was read after its paragraph, and
  counted as a character the document does not have.
• A screen reader that moves the caret in a RichTextEditor puts it where
  it asked after an accented letter or any other character longer than a
  byte. It landed one place further for each such character before it.
• A caret on a table's own positions is reported to a screen reader.
  Right from the paragraph before a table stops twice before the first cell,
  and a reader was told of no caret there; it is told the caret is at the
  first cell.
• A screen reader gets a RichTextEditor's lists as lists. Each item's
  line starts with its marker as it is painted, its bullet, its number or
  its task box, which a reader steps over in one move and the caret never
  stops inside. Each list is a list node and each item an item node with its
  level, its position and the list's size, and a nested list is inside the
  item it follows. Items were read as plain paragraphs, with no marker and
  no depth. In a table cell an item reads its marker and has no node of its
  own, as a heading there has none.
• A heading that opens a blockquote in a RichTextEditor is read in its
  place, inside the quote. It was read after the quote's other text.

Full Changelog: v0.22.0...v0.23.0