Rewrite _getdir plugin - Githubissues

Due to the heavy modifications made to upstream code, I made this new pull request based on the latest develop branch. Most of the features are the same as the original pull request, plus a few fixes for bugs that got their way in during the last few commits.

Plugin Features:

Combine getfiles.php and getdirs.php into one script: listdir.php;
Return the directory list in JSON format and render it in an HTML <dialog> instead of returning server-rendered HTML and display it in an ```;</li> <li>Attach the directory list frame to the root node (actually a wrapper <code>#dir-container</code>), instead of the containing dialog window, so that the frame can grow outside the boundary of the dialog window and still show up properly. Otherwise, the directory list would be "clipped" when the height exceeds that of its containing window. The original Save To window used an invisible pad attached to the bottom to contain the extra height of the frame. In my previous flex layout patch, I increased the gap between the options so that the window would be high enough to contain the frame. Now the problem is solved.</li> <li>Add a linkage to the directory list frame and its containing window for drap-n-drop movement, since the frame now don't belong to the containing window, it would not have moved automatically with the window.</li> <li>Allow navigating through the directories using arrow keys: <code>ArrowUP</code> and <code>ArrowDown</code> for selecting, <code>ArrowRight</code> for entering the selected directory, <code>ArrowLeft</code> for going back to the parent directory, <code>Home</code> and <code>End</code> for going to the top and the end respectively;</li> <li>Adapt the directory list frame to different themes.</li> </ul> <p>Original Pull Request: <a rel="noreferrer nofollow" target="_blank" href="https://github.com/Novik/ruTorrent/pull/2704">https://github.com/Novik/ruTorrent/pull/2704</a></p> </div> </div> <div class="page-bar-simple"> </div> <div class="footer"> <ul class="body"> <li>© <script> document.write(new Date().getFullYear()) </script> Githubissues.</li> <li>Githubissues is a development platform for aggregating issues.</li> </ul> </div> <script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.min.js"></script> <script src="/githubissues/assets/js.js"></script> <script src="/githubissues/assets/markdown.js"></script> <script src="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.4.0/build/highlight.min.js"></script> <script src="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.4.0/build/languages/go.min.js"></script> <script> hljs.highlightAll(); </script> </body> </html>

Novik / ruTorrent

Rewrite _getdir plugin #2718