权限没有,则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存,跨进程需要再加一层缓存:redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>javascript - Get all elements in selectionhighlight using window.getSelection - Stack Overflow
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javascript - Get all elements in selectionhighlight using window.getSelection - Stack Overflow

programmeradmin8浏览0评论

I can get a single element, or mon ancestor element, but I can't figure out how to get all elements that are being highlighted.

Here's a demo of getting the mon ancestor.

console.clear();
document.querySelector('div').addEventListener('mouseup', () => {
  const selection = window.getSelection();
  const elem = selection.getRangeAt(0)monAncestorContainer.parentNode;
  console.log(elem);
});
<div contenteditable="true">
  <header>
    <h1>Rich Text Editing Development</h1>
    <p>I'm <strong><em>really</em> annoyed</strong> with trying to figure out this answer.</p>
  </header>
</div>

I can get a single element, or mon ancestor element, but I can't figure out how to get all elements that are being highlighted.

Here's a demo of getting the mon ancestor.

console.clear();
document.querySelector('div').addEventListener('mouseup', () => {
  const selection = window.getSelection();
  const elem = selection.getRangeAt(0).monAncestorContainer.parentNode;
  console.log(elem);
});
<div contenteditable="true">
  <header>
    <h1>Rich Text Editing Development</h1>
    <p>I'm <strong><em>really</em> annoyed</strong> with trying to figure out this answer.</p>
  </header>
</div>

Since rangeCount is always only 1, and the objects I see from selection and other children don't have an array or nodeList of selected items (that I noticed), I don't know what to do.

So how do I know which elements are being selected/highlighted?

Share Improve this question edited Apr 17, 2018 at 14:34 Native Dev asked Apr 16, 2018 at 22:39 Native DevNative Dev 7,4023 gold badges42 silver badges41 bronze badges
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2 Answers 2

Reset to default 9

Though you'll get a copy of the descendant elements instead of references to the real ones, you can use the cloneContents() method of a Range, in addition to the mon ancestor parent node (even supported in IE11 if using ES5 syntax):

document.addEventListener('mouseup', () => {
  
  console.clear();
  
  const selection = window.getSelection();
  if (!selection.rangeCount) return;
  
  const range = selection.getRangeAt(0);
  
  console.log('Selected elements:');
  range.cloneContents().querySelectorAll('*').forEach(e => console.log(e));
  
  console.log('Selected text/elements parent:');
  console.log(range.monAncestorContainer.parentNode);

});
<div contenteditable="true">
  <header>
    <h1>Rich Text Editing Development</h1>
    <p>I'm <strong><em>really</em> annoyed</strong> with trying to figure out this answer.</p>
  </header>
</div>

In case anyone needs text nodes, you can use the accepted answer with a small tweak:

...
const elements = range.cloneContents().childNodes;
...

Otherwise when just a text node is selected, querySelectorAll will return an empty list.

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