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 - .focus() Not Focusing On New Element - Stack Overflow

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    javascript - .focus() Not Focusing On New Element - Stack Overflow

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    I have a function for renaming certain divs. The way I'm trying to get it to work is like this:

    • User right clicks div
    • User clicks 'Rename' on context menu
    • Div gets an input element and is automatically focused
    • The input gets submitted after pressing enter or clicking the screen

    I have most of the steps done but the input element is not being focused after I click 'rename'. Here's the code:

    function Rename( ){
    ClickedFile.innerHTML = "<input class='Rename' type='text' value='" + ClickedFile.innerHTML + "'>";
    ClickedFile.childNodes[0].focus();
}

    The ClickedFile is the node that was right clicked. Changing The innerHTML works fine but the .focus() does not and I'm not sure why. I don't get any errors on the console, either.

    I've also tried using:

    ClickedFile.childNodes[0].select();
ClickedFile.childNodes[1].focus();
ClickedFile.focus();

    None of them have worked.

    Edit:

    • I know using JQuery might help, but I'm more interested in finding out why this isn't working.

    • I fixed the problem. It has something to do with event handlers. My answer is posted below.

    I have a function for renaming certain divs. The way I'm trying to get it to work is like this:

    • User right clicks div
    • User clicks 'Rename' on context menu
    • Div gets an input element and is automatically focused
    • The input gets submitted after pressing enter or clicking the screen

    I have most of the steps done but the input element is not being focused after I click 'rename'. Here's the code:

    function Rename( ){
    ClickedFile.innerHTML = "<input class='Rename' type='text' value='" + ClickedFile.innerHTML + "'>";
    ClickedFile.childNodes[0].focus();
}

    The ClickedFile is the node that was right clicked. Changing The innerHTML works fine but the .focus() does not and I'm not sure why. I don't get any errors on the console, either.

    I've also tried using:

    ClickedFile.childNodes[0].select();
ClickedFile.childNodes[1].focus();
ClickedFile.focus();

    None of them have worked.

    Edit:

    • I know using JQuery might help, but I'm more interested in finding out why this isn't working.

    • I fixed the problem. It has something to do with event handlers. My answer is posted below.

    • javascript
    • html
    Share Improve this question edited May 14, 2013 at 0:43 tay10r asked May 13, 2013 at 21:30 tay10rtay10r 4,3572 gold badges27 silver badges45 bronze badges 5
    • @tadman jQuery?? What the heck is this for? It is like saying Why you're not using CodeIgniter in the first place. It makes very hard to get wrong. – Jan Turoň Commented May 13, 2013 at 21:36
    • 2 What you have seems to work fine for me here. – Ja͢ck Commented May 13, 2013 at 21:41
    • I'm not using it so that I get a better understanding of pure javascript. I'd really rather not debate here whether or not I should be using jQuery anyway – tay10r Commented May 13, 2013 at 21:41
    • @tadman Read my last ment – tay10r Commented May 13, 2013 at 21:54
    • 2 Since this is a JavaScript question, policy seems to be: Don't answer it telling the asker to use jQuery. Just answer with JavaScript, unless jQuery or other frameworks are explicitly requested, or named as being used. – doppelgreener Commented May 13, 2013 at 23:00
    Add a ment  | 

    3 Answers 3

    Reset to default 5

    You have to add the element as part of DOM

    var input = document.createElement("input");
input.className = "Rename";
input.type = "text";

document.getElementById("somenode").appendChild(input);
input.focus(); // should work now

    see the fiddle

    The reason is that since you're immediately invoking the select and focus methods. The browser didn't have a chance yet to insert the element so it's not part of the DOM.

    A quick and dirty solution is to use the setTimeout-function with a value of 0 milliseconds:

    function Rename( ){
    ClickedFile.innerHTML = "<input class='Rename' type='text' value='" + ClickedFile.innerHTML + "'>";
    setTimeout(function(){ClickedFile.childNodes[0].focus();}, 0);
}

    This causes the browser to do everything it has to do, and then run the function you passed into the setTimeout

    The following fiddle shows your example in a working state: http://jsfiddle/Kennethtruyers/fX8h6/

    I fixed the problem by changing the function that renames the div to be triggered on 'mouseup' instead of 'mousedown'.

    I think the reason this was causing a problem is because the Rename() function was being triggered on mousedown, causing the focus to be set during 'mousedown', but the contextmenu wasn't being hidden until 'mouseup'.

    I can't confirm that's the reason but I do know that the code works after 'mousedown' was changed to 'mouseup' for the trigger of Rename().

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