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pagenate by prev/next links

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This commit is contained in:
Shin'ya Ueoka 2017-09-17 10:52:09 +09:00
parent aeb0e0f96d
commit ac8b40a2f3
6 changed files with 99 additions and 2 deletions
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41
src/content/navigates.js
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@ -1,8 +1,47 @@
const PREV_LINK_PATTERNS = [
/\bprev\b/i, /\bprevious\b/i, /\bback\b/i,
/</, /\u2039/, /\u2190/, /\xab/, /\u226a/, /<</
];
const NEXT_LINK_PATTERNS = [
/\bnext\b/i,
/>/, /\u203a/, /\u2192/, /\xbb/, /\u226b/, />>/
];
const findLinkByPatterns = (win, patterns) => {
let links = win.document.getElementsByTagName('a');
return Array.prototype.find.call(links, (link) => {
return patterns.some(ptn => ptn.test(link.textContent));
});
};
const historyPrev = (win) => {
win.history.back();
};
const historyNext = (win) => {
win.history.forward();
};
export { historyPrev, historyNext };
const linkPrev = (win) => {
let link = win.document.querySelector('a[rel=prev]');
if (link) {
return link.click();
}
link = findLinkByPatterns(win, PREV_LINK_PATTERNS);
if (link) {
link.click();
}
};
const linkNext = (win) => {
let link = win.document.querySelector('a[rel=next]');
if (link) {
return link.click();
}
link = findLinkByPatterns(win, NEXT_LINK_PATTERNS);
if (link) {
link.click();
}
};
export { historyPrev, historyNext, linkPrev, linkNext };