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[Annotations] Add some aria-owns in the text layer to link to annotations (bug 1780375)

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This patch doesn't structurally change the text layer: it just adds some aria-owns
attributes to some spans.
The aria-owns attribute expect to have an element id, hence it's why it adds back an
id on the element rendering an annotation, but this id is built in using crypto.randomUUID
to avoid any potential issues with the hash in the url.
The elements in the annotation layer are moved into the DOM in order to have them in the
same "order" as they visually are.
The overall goal is to help screen readers to present to the user the annotations as
they visually are and as they come in the text flow.
It is clearly not perfect, but it should improve readability for some people with visual
disabilities.
This commit is contained in:
Calixte Denizet 2022-07-28 17:59:03 +02:00
parent cef2ac99e5
commit f316300113
23 changed files with 436 additions and 246 deletions
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2
src/display/editor/ink.js
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@ -488,7 +488,7 @@ class InkEditor extends AnnotationEditor {
// When commiting, the position of this editor is changed, hence we must
// move it to the right position in the DOM.
this.parent.moveDivInDOM(this);
this.parent.moveEditorInDOM(this);
// After the div has been moved in the DOM, the focus may have been stolen
// by document.body, hence we just keep it here.
this.div.focus();