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Refactor getSnippet

This commit is contained in:
shinigami-eyes 2020-03-12 11:02:02 +00:00
parent e7e6015dd0
commit 7ba94ea02e
1 changed files with 33 additions and 10 deletions
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43
extension/content.ts
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@ -524,19 +524,42 @@ init();
var lastGeneratedLinkId = 0;
function getSnippet(node: HTMLElement) {
function getMatchingAncestor(node: HTMLElement, match: (node: HTMLElement) => boolean) {
while (node) {
var classList = node.classList;
if (hostname == 'facebook.com' && node.dataset && node.dataset.ftr) return node;
if (hostname == 'reddit.com' && (classList.contains('scrollerItem') || classList.contains('thing') || classList.contains('Comment'))) return node;
if (hostname == 'twitter.com' && (classList.contains('stream-item') || classList.contains('permalink-tweet-container') || node.tagName == 'ARTICLE')) return node;
if (hostname == 'disqus.com' && (classList.contains('post-content'))) return node;
if (hostname == 'medium.com' && (classList.contains('streamItem') || classList.contains('streamItemConversationItem'))) return node;
if (hostname == 'youtube.com' && node.tagName == 'YTD-COMMENT-RENDERER') return node;
if (hostname.endsWith('tumblr.com') && (node.dataset.postId || classList.contains('post'))) return node;
if (match(node)) return node;
node = node.parentElement;
}
return node;
}
function getMatchingAncestorByCss(node: HTMLElement, cssMatch: string) {
return getMatchingAncestor(node, x => x.matches(cssMatch));
}
function getSnippet(node: HTMLElement) {
if (hostname == 'facebook.com') {
return getMatchingAncestor(node, x => {
var dataset = x.dataset;
if (!dataset) return false;
if (dataset.ftr) return true;
if (dataset.highlightTokens) return true;
if (dataset.gt && dataset.vistracking) return true;
return false;
});
}
if (hostname == 'reddit.com')
return getMatchingAncestorByCss(node, '.scrollerItem, .thing, .Comment');
if (hostname == 'twitter.com')
return getMatchingAncestorByCss(node, '.stream-item, .permalink-tweet-container, article');
if (hostname == 'disqus.com')
return getMatchingAncestorByCss(node, '.post-content');
if (hostname == 'medium.com')
return getMatchingAncestorByCss(node, '.streamItem, .streamItemConversationItem');
if (hostname == 'youtube.com')
return getMatchingAncestorByCss(node, 'ytd-comment-renderer, ytd-video-secondary-info-renderer');
if (hostname == 'tumblr.com')
return getMatchingAncestor(node, x => (x.dataset && !!x.dataset.postId) || x.classList.contains('post'));
return null;
}