javascript - Keep absolute element (dropdown-menu) in viewport or window width -

- 

<li class="dropdown">                   <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">dropdown <span class="caret"></span></a>                   <ul class="dropdown-menu menu-multicolumn">                         <li class="menu-column">                             <ul>                                 <li class="menu-column-title">multi page</li>                                 <li><a href="#">action</a></li>                                 <li><a href="#">another action</a></li>                                 <li><a href="#">something here</a></li>                                 <li><a href="#">separated link</a></li>                                 <li><a href="#">separated link</a></li>                              </ul>                         </li>                         <li class="menu-column">                             <ul>                                 <li class="menu-column-title"></li>                                 <li><a href="#">action</a></li>                                 <li><a href="#">another action</a></li>                                 <li><a href="#">something here</a></li>                                 <li><a href="#">separated link</a></li>                                 <li><a href="#">separated link</a></li>                              </ul>                         </li>                         <li class="menu-column">                             <ul>                                 <li class="menu-column-title">one page</li>                                 <li><a href="#">action</a></li>                                 <li><a href="#">another action</a></li>                                 <li><a href="#">something here</a></li>                                 <li><a href="#">separated link</a></li>                                 <li><a href="#">separated link</a></li>                             </ul>                         </li>                         <li class="menu-column">                             <ul>                                 <li class="menu-column-title"></li>                                 <li><a href="#">action</a></li>                                 <li><a href="#">another action</a></li>                                 <li><a href="#">something here</a></li>                                 <li><a href="#">separated link</a></li>                                 <li><a href="#">separated link</a></li>                             </ul>                         </li>                   </ul>                 </li><!-- end of dropdown -->

css

 .dropdown-menu { background-clip: padding-box; background-color: #fff; border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 4px; box-shadow: 0 6px 12px rgba(0, 0, 0, 0.176); display: none; float: left; font-size: 14px; list-style: outside none none; margin: 2px 0 0; min-width: 160px; padding: 5px 0; position: absolute; text-align: left; top: 100%; z-index: 1000;}  .menu-multicolumn { white-space: nowrap; width: auto !important;}  .menu-column { display: inline-block; float: none; overflow: hidden; vertical-align: top; white-space: normal; min-width: 190px;}

ok thinking javascript determine how .dropdown-menu element out of window width , set same width left: -(that width);, .dropdown-menu element have flexible left position , inside window width.

basically need determine how element out of window width , set same amount minus left absolute position of same element.

maybe thought simple, if right way, , want right side stay inside viewport, this:

.dropdown-menu {    position: absolute;    right: 0px;    left: auto; }

instead of calculating how should push left side in negative margin can set space right side zero!


Comments

Post a Comment

Popular posts from this blog

c# - Better 64-bit byte array hash -

-
i need hash algorithm produces 64-bit hash code ( long ) fewer collisions string.gethashcode() , fast (no expensive calls cryptographic functions). here's implementation of fnv still shows 3% of collisions after testing 2 million random strings. need number way lower. void main() { const string chars = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz!#@$%^&*()_+}{\":?><,./;'[]0123456789\\"; const int n = 2000000; var random = new random(); var hashes = new hashset<long>(); int collisions = 0; for(int = 0; < n; i++) { var len = random.next(chars.length); var str = new char[len]; (int j = 0; j < len; j++) { str[j] = chars[random.next(chars.length)]; } var s = new string(str); if(!hashes.add(get64bithash( s ))) collisions++; } console.writeline("collision percentage after " + n + " random strings: " + ((doubl
Read more

webrtc - Which ICE candidate am I using and why? -

-
[questions in bold below] i have setup kurento media server 5.1.3 in datacenter behind firewall running os ubuntu 14.04. has 2 network cards: 222.222.222.222 (eth0 - private ip) 111.111.111.111 (eth1 - public ip) attached below sdp (setremotedescription) when browser connected kurento media server type: answer, sdp: v=0 o=- 5487318114793304426 0 in ip4 0.0.0.0 s=kurento media server c=in ip4 0.0.0.0 t=0 0 a=group:bundle audio video m=audio 59068 rtp/savpf 111 0 c=in ip4 111.111.111.111 a=rtpmap:111 opus/48000/2 a=rtpmap:0 pcmu/8000 a=sendrecv a=rtcp:59068 in ip4 111.111.111.111 a=rtcp-mux a=ssrc:669011897 cname:user39019747@host-6e83e4c2 a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time a=mid:audio b=as:20 a=ice-ufrag:ymdk a=ice-pwd:lylifk5ueqzpwm91ddj37e a=fingerprint:sha-256 ff:0f:81:8c:41:4e:b4:b6:c6:d8:36:f3:d6:5f:09:fd:5f:af:13:b3:9d:fc:12:66:ac:f3:56:d6:5b:0a:73:5d a=candidate:1 1 udp 2013266431 111.111.111.111 55239 typ host a=candidate:2 1 udp
Read more

php - Zend Framework / Skeleton-Application / Composer install issue -

-
i trying create zend framework application using skeleton in netbeans. when run composer install, following error message: "c:\php\php.exe" "c:\composer\composer.phar" "--ansi" "--no-interaction" "update" "--dev" using deprecated option "dev". dev packages installed default now. loading composer repositories package information updating dependencies (including require-dev) requirements not resolved installable set of packages. problem 1 - package requires php >=5.5 php version (5.4.42) not satisfy requirement. problem 2 - installation request zendframework/zendframework 2.5.1 -> satisfiable zendframework/zendframework[2.5.1]. - zendframework/zendframework 2.5.1 requires php >=5.5 -> php version (5.4.42) not satisfy requirement. done. apparently, zend framework only needs php 5.3+ contradicts above. need use php 5.4. my composer.json following: { "name": "
Read more