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Merge pull request #291 from usk/feature/do-not-follow-link-which-has-aria-hidden-attribute-or-aria-disabled-attribute

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do not follow link which has aria-hidden attribute or aria-disabled a…
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Shin'ya Ueoka 2017-12-28 16:20:54 +09:00 • committed by GitHub
commit df18fb337f
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1 changed files with 16 additions and 0 deletions
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16
src/content/components/common/follow.js
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@ -30,6 +30,21 @@ const inViewport = (win, element, viewSize, framePosition) => {
return true;
};
const isAriaHiddenOrAriaDisabled = (win, element) => {
if (!element || win.document.documentElement === element) {
return false;
}
for (let attr of ['aria-hidden', 'aria-disabled']) {
if (element.hasAttribute(attr)) {
let hidden = element.getAttribute(attr).toLowerCase();
if (hidden === '' || hidden === 'true') {
return true;
}
}
}
return isAriaHiddenOrAriaDisabled(win, element.parentNode);
};
export default class Follow {
constructor(win, store) {
this.win = win;
@ -171,6 +186,7 @@ export default class Follow {
style.visibility !== 'hidden' &&
element.type !== 'hidden' &&
element.offsetHeight > 0 &&
!isAriaHiddenOrAriaDisabled(win, element) &&
inViewport(win, element, viewSize, framePosition);
});
return filtered;