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terminator/doc/manual/_build/html/plugins.html
Stephen Boddy 4bd6913267 Some manual updates
2015-08-21 02:11:31 +02:00

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<img alt="I have the POWWWWWWEEEEERRRRRRR!!!!!!" class="align-right" src="_images/icon_plugins.png" />
<div class="section" id="plugins">
<span id="id1"></span><h1>Plugins<a class="headerlink" href="#plugins" title="Permalink to this headline"></a></h1>
<p>Terminator can be expanded using plugins. Additional features can
be created outside of the main application, and added in at runtime.</p>
<p>In theory you should be able to implement fairly powerful plugins,
although so far the included ones we have are fairly small in scope.</p>
<p>The current plugins do not have configuration options in the
<a class="reference internal" href="preferences.html#prefs-plugins"><span>Plugins</span></a> tab of the <a class="reference internal" href="preferences.html#preferences"><span>Preferences Window</span></a>. The plugin
architecture was created before I (Steve Boddy) became maintainer,
and so far I haven&#8217;t had reason to figure out the detail. I&#8217;m not
entirely sure if/how a plugin can add options to the configuration
options in the <a class="reference internal" href="preferences.html#prefs-plugins"><span>Plugins</span></a> tab. What plugins can definitely
do, because examples are below, is to:</p>
<ul class="simple">
<li>add menu items to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a>,</li>
<li>create their own windows,</li>
<li>create handlers for strings that match a pattern.</li>
</ul>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<img alt="_images/plugins_links.png" class="align-center" src="_images/plugins_links.png" />
<p class="last">Several of the included plugins create <a class="reference internal" href="gettingstarted.html#clickable-items"><span>Click-able items</span></a> in
the terminal. These are made apparent by underlining the
item when the mouse hovers over it.</p>
</div>
<div class="section" id="included-plugins">
<h2>Included plugins<a class="headerlink" href="#included-plugins" title="Permalink to this headline"></a></h2>
<p>The following plugins are distributed by default with Terminator.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Unless otherwise stated, the included plugins are under the
<a class="reference internal" href="licensing.html#licencing"><span>Licensing</span></a> as Terminator, GNU GPL v2.</p>
</div>
<div class="section" id="activity-watch">
<h3>Activity Watch<a class="headerlink" href="#activity-watch" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones</p>
<img alt="_images/activitywatch_notification.png" class="align-right" src="_images/activitywatch_notification.png" />
<p>Adds a menu item, <strong>Watch for activity</strong>, to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a> which
will create a notification, as seen to the right, when there is output
to the terminal. This is useful when you have a long running command
and wish to know when it has completed, or output an update.</p>
<p>There is one option for this plugin:</p>
<p><strong>hush_period</strong> (default: 10.0)</p>
<blockquote>
<div>How long in seconds until the next notification of activity is
presented.</div></blockquote>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>There is currently no way to edit these options in the GUI,
it must be done directly in <a class="reference internal" href="advancedusage.html#config-file"><span>The Config file</span></a>.</p>
<p>An extract of this item being set would be:</p>
<div class="highlight-python"><div class="highlight"><pre>[plugins]
[[ActivityWatch]]
hush_period = 30.0
</pre></div>
</div>
<p class="last">Which would wait 30 seconds before showing another
notification of activity.</p>
</div>
</div>
<div class="section" id="apt-url-handler">
<h3>APT URL Handler<a class="headerlink" href="#apt-url-handler" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones</p>
<p>Text matching <code class="docutils literal"><span class="pre">apt:.*</span></code> will be converted into a click-able item that
when triggered with <code class="docutils literal"><span class="pre">Ctrl</span></code>+<code class="docutils literal"><span class="pre">click</span></code> will launch the default
package manager for software on a debian system.</p>
<p><code class="docutils literal"><span class="pre">right-click</span></code> over the URL will add two entries to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a>:</p>
<ul class="simple">
<li><em>Open software manager</em> - Same as <code class="docutils literal"><span class="pre">Ctrl</span></code>+<code class="docutils literal"><span class="pre">click</span></code></li>
<li><em>Copy package URI</em> - Just copies the URI to the clipboard</li>
</ul>
</div>
<div class="section" id="custom-commands-menu">
<h3>Custom Commands Menu<a class="headerlink" href="#custom-commands-menu" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones</p>
<p>Adds a menu item, <strong>Custom Commands</strong>, to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a> which
has a sub-menu containing its own <strong>Preferences</strong> item that launches
the window show below. Below that is a list of user configured
commands that can be chosen.</p>
<img alt="_images/custom_commands.png" class="align-center" src="_images/custom_commands.png" />
<p>In this window you can create a <strong>New</strong> item, and <strong>Edit</strong> or
<strong>Delete</strong> existing ones. The selected item can be repositioned in
the sub-menu order using the <strong>Top</strong>, <strong>Up</strong>, <strong>Down</strong> and <strong>Last</strong>
buttons.</p>
<p>Clicking <em>New</em> or <em>Edit</em> gives the smaller window. An <strong>Enabled</strong>
item is shown in sub-menu, and a disabled one is not. The <strong>Name</strong> is
used for the sub-menu item text. The <strong>Command</strong> is the text that will
be entered into the current terminal with a <code class="docutils literal"><span class="pre">Return</span></code> at the end to
execute/enter it. You <em>do not</em> get a chance to edit the text first.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">If other terminals are receiving, they too will receive and
execute the <em>Command</em>.</p>
</div>
</div>
<div class="section" id="inactivity-watch">
<h3>Inactivity Watch<a class="headerlink" href="#inactivity-watch" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones</p>
<img alt="_images/inactivitywatch_notification.png" class="align-right" src="_images/inactivitywatch_notification.png" />
<p>Adds a menu item, <strong>Watch for silence</strong>, to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a> which
will create a notification, as seen to the right, when a terminal has
been quiet for a given period. This is useful when you have a long
running process that outputs constantly (i.e. compiling a kernel) and
you wish to know when it has ended. This notification will only show
once, unless there is some activity in the terminal after the initial
notification.</p>
<p>There are two options for this plugin:</p>
<p><strong>inactive_period</strong> (default: 10.0)</p>
<blockquote>
<div>How long in seconds until a terminal is considered inactive.</div></blockquote>
<p><strong>watch_interval</strong> (default: 5000)</p>
<blockquote>
<div>How long in milliseconds between checks for inactivity.</div></blockquote>
<p>Be aware that this combination will result in some uncertainty as to
the exact timing of the notification. In the worst case, with the
values given, the notification may take 14.9 seconds to appear.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>There is currently no way to edit these options in the GUI,
it must be done directly in <a class="reference internal" href="advancedusage.html#config-file"><span>The Config file</span></a>.</p>
<p>An extract of these items being set would be:</p>
<div class="highlight-python"><div class="highlight"><pre>[plugins]
[[InactivityWatch]]
inactive_period = 30.0
watch_interval = 1000
</pre></div>
</div>
<p class="last">Which would check every second if the terminal had been
silent for 30 seconds.</p>
</div>
</div>
<div class="section" id="launchpad-bug-url-handler">
<h3>Launchpad Bug URL Handler<a class="headerlink" href="#launchpad-bug-url-handler" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones</p>
<p>Text matching <code class="docutils literal"><span class="pre">lp:</span> <span class="pre">#12345</span></code> where 12345 is a bug number in launchpad,
will be converted into a click-able item that when triggered with
<code class="docutils literal"><span class="pre">Ctrl</span></code>+<code class="docutils literal"><span class="pre">click</span></code> will launch a browser to the bug report in
launchpad.</p>
<p>Additionally the plugin will accept variants where the prefix is in
capitals, i.e. <code class="docutils literal"><span class="pre">LP</span></code>, and the <code class="docutils literal"><span class="pre">:</span></code>, white-space, and <code class="docutils literal"><span class="pre">#</span></code> are
optional.</p>
<p>The item can also be more than one bug number, and each will be opened,
for example:</p>
<blockquote>
<div><code class="docutils literal"><span class="pre">lp:</span> <span class="pre">#12345.</span> <span class="pre">#67890,</span> <span class="pre">54321,#9876</span></code></div></blockquote>
<p><code class="docutils literal"><span class="pre">Ctrl</span></code>+<code class="docutils literal"><span class="pre">click</span></code> on this will open four pages; one for each bug
number.</p>
<p><code class="docutils literal"><span class="pre">right-click</span></code> over the URL will add two entries to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a>:</p>
<ul class="simple">
<li><em>Open Launchpad bug</em> - Same as <code class="docutils literal"><span class="pre">Ctrl</span></code>+<code class="docutils literal"><span class="pre">click</span></code></li>
<li><em>Copy bug URL</em> - Just copies the URL to the clipboard</li>
</ul>
</div>
<div class="section" id="launchpad-code-url-handler">
<h3>Launchpad Code URL Handler<a class="headerlink" href="#launchpad-code-url-handler" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones</p>
<p>Text matching <code class="docutils literal"><span class="pre">lp:string</span></code> will be converted into a click-able item
that when triggered with <code class="docutils literal"><span class="pre">Ctrl</span></code>+<code class="docutils literal"><span class="pre">click</span></code> will launch a browser
to the page in launchpad, where string is one of the following:</p>
<ul class="simple">
<li><em>project</em> - i.e. lp:terminator</li>
<li><em>project/series</em> - i.e. lp:terminator/gtk3</li>
<li><em>group/project/branch</em> - i.e. lp:~sparkstar/terminator/terminator</li>
<li><em>group/+junk/branch</em> - i.e. lp:~&lt;yourname&gt;/+junk/terminator</li>
</ul>
<p>Additionally the plugin will accept variants where the prefix is in
capitals, i.e. <code class="docutils literal"><span class="pre">LP</span></code>.</p>
<p><code class="docutils literal"><span class="pre">right-click</span></code> over the URL will add two entries to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a>:</p>
<ul class="simple">
<li><em>Open Launchpad branch</em> - Same as <code class="docutils literal"><span class="pre">Ctrl</span></code>+<code class="docutils literal"><span class="pre">click</span></code></li>
<li><em>Copy branch URL</em> - Just copies the URL to the clipboard</li>
</ul>
</div>
<div class="section" id="logger">
<h3>Logger<a class="headerlink" href="#logger" title="Permalink to this headline"></a></h3>
<p>Original Author: Sinan Nalkaya</p>
<p>Adds a menu item, <strong>Start Logger</strong>, to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a> which will
popup a window for selecting a file name to save as. Any content then
written to the terminal will be written to the file too. Once started
the menu item will change to <strong>Stop Logger</strong> which does precisely what
you would expect.</p>
<div class="admonition warning">
<p class="first admonition-title">Warning</p>
<p class="last">There appears to be problems when applications switch
to/from alternate mode (i.e. vi, mc, etc.) The obvious
one is that the alternate screen is not &#8220;logged&#8221;
although it is not clear how this <em>could</em> be logged. The
second issue is that some of the output after the
alternate screen is not logged. See <a class="reference external" href="https://bugs.launchpad.net/terminator/+bug/1477386">LP#1477386</a> for
more info and progress.</p>
</div>
</div>
<div class="section" id="maven-plugin-url-handler">
<h3>Maven Plugin URL Handler<a class="headerlink" href="#maven-plugin-url-handler" title="Permalink to this headline"></a></h3>
<p>Original Author: Julien Nicoulaud</p>
<p>Ummmm..... I&#8217;m not entirely sure what this will do, as I don&#8217;t use
Maven. Updates on a postcard, please...</p>
<p>From the source:</p>
<blockquote>
<div>Maven plugin handler. If the name of a Maven plugin is
detected, it is turned into a link to its documentation site.
If a Maven plugin goal is detected, the link points to the
particular goal page. Only Apache (org.apache.maven.plugins)
and Codehaus (org.codehaus.mojo) plugins are supported.</div></blockquote>
</div>
<div class="section" id="terminal-shot">
<h3>Terminal Shot<a class="headerlink" href="#terminal-shot" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones</p>
<p>Adds a menu item, <strong>Terminal screenshot</strong>, to <a class="reference internal" href="gettingstarted.html#context-menu"><span>The Context Menu</span></a>
that will take a screenshot of the underlying terminal, and present
a dialog for where to save it.</p>
</div>
<div class="section" id="test-plugin">
<h3>Test Plugin<a class="headerlink" href="#test-plugin" title="Permalink to this headline"></a></h3>
<p>Original Author: Chris Jones (most likely)</p>
<p>An almost comically stripped down example.</p>
</div>
</div>
<div class="section" id="third-party-plugins">
<h2>Third party plugins<a class="headerlink" href="#third-party-plugins" title="Permalink to this headline"></a></h2>
<p>As I find (or I&#8217;m told about) plugins that are available elsewhere,
I&#8217;ll add links here. I&#8217;ve done a preliminary search, and.. Wow! I
never knew there were so many out there.</p>
<p>If any of the authors would like to get their plugins added to the
main Terminator package, or they would prefer not to be listed here
for some reason, they can reach out to me through the project site
on Launchpad and we can sort it out.</p>
<p>I&#8217;m unsure of how these plugins are perceived. They are specific to
Terminator, but does that make them derivative in the eyes of GPL v2,
and therefore allow me to include them? If I want to include one in
the main package, do I have to hope the creator is still active?
Answers on a postcard...</p>
<div class="admonition warning">
<p class="first admonition-title">Warning</p>
<p class="last">I have done no testing or checking of these plugins. You
use at your own risk, and you are responsible for
evaluating the code for bugs, issues, and security.</p>
</div>
<p>In absolutely no order at all...</p>
<dl class="docutils">
<dt><a class="reference external" href="https://github.com/rail/dotfiles/blob/master/terminator_bugzilla_handler.py">https://github.com/rail/dotfiles/blob/master/terminator_bugzilla_handler.py</a></dt>
<dd><ul class="first last simple">
<li>terminator_bugzilla_handler: Link &#8220;bug:12345&#8221; to the Mozilla bugzilla.
(As it is for Mozilla, it seems a bit misnamed.)</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/ilgarm/terminator_plugins">https://github.com/ilgarm/terminator_plugins</a></dt>
<dd><ul class="first last simple">
<li>clone_session: Split and clone ssh session</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/arnaudh/terminator-plugins">https://github.com/arnaudh/terminator-plugins</a></dt>
<dd><ul class="first last simple">
<li>open_any_file_plugin: Open any file with it&#8217;s default application</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/dr1s/terminator-plugins">https://github.com/dr1s/terminator-plugins</a></dt>
<dd><ul class="first last simple">
<li>cluster_connect: A way to connect to multiple machines as a cluster</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/mchelem/terminator-editor-plugin">https://github.com/mchelem/terminator-editor-plugin</a></dt>
<dd><ul class="first last simple">
<li>editor_plugin: Click on file:line style links to launch a text editor</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/camillo/TerminatorPlugins">https://github.com/camillo/TerminatorPlugins</a></dt>
<dd><ul class="first last simple">
<li>LayoutManager: Saves and restores Layouts (which is built-in now, possibly redundant)</li>
<li>TerminalExporter: Export contents to file</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/choffee/terminator-plugins">https://github.com/choffee/terminator-plugins</a></dt>
<dd><ul class="first last simple">
<li>searchplugin: Search Google for the selected text in a terminal</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/papajoker/editor_terminator">https://github.com/papajoker/editor_terminator</a></dt>
<dd><ul class="first last simple">
<li>editor_plugin: Another text editor launcher</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/papajoker/git_terminator">https://github.com/papajoker/git_terminator</a></dt>
<dd><ul class="first last simple">
<li>git_plugin: adds commands for git when it detects a .git folder</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/iambibhas/terminator-plugins">https://github.com/iambibhas/terminator-plugins</a></dt>
<dd><ul class="first last simple">
<li>hastebin: Uploads selected text to Hastebin and opens browser on it</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/abourget/abourget-terminator">https://github.com/abourget/abourget-terminator</a></dt>
<dd><ul class="first last simple">
<li>TenscoresPlugin: Seems to be for launching set of tabs (which is built-in now, possibly redundant)</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/mikeadkison/terminator-google">https://github.com/mikeadkison/terminator-google</a></dt>
<dd><ul class="first last simple">
<li>google: Another google-the-text plugin</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/mariolameiras/ssh-menu-terminator">https://github.com/mariolameiras/ssh-menu-terminator</a></dt>
<dd><ul class="first last simple">
<li>ssh_menu: I&#8217;m guessing a bit, but I think it works with SSH Menu ;-) the code is quite big to understand at a glance.</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/alesegdia/terminator-plugins">https://github.com/alesegdia/terminator-plugins</a></dt>
<dd><ul class="first last simple">
<li>Session: Save/load sessions (which is built-in now, possibly redundant)</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/Theer108/colorize">https://github.com/Theer108/colorize</a></dt>
<dd><ul class="first last simple">
<li>colorize: Colour titlebar of each terminal separately</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/ju1ius/clisnips">https://github.com/ju1ius/clisnips</a></dt>
<dd><ul class="first last simple">
<li>clisnips: Snippets for the command line.</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/GratefulTony/TerminatorHostWatch">https://github.com/GratefulTony/TerminatorHostWatch</a></dt>
<dd><ul class="first last simple">
<li>hostWatch: Attempts to figure out your current host, and apply a certain theme.</li>
</ul>
</dd>
<dt><a class="reference external" href="https://github.com/kmoppel/dumptofile">https://github.com/kmoppel/dumptofile</a></dt>
<dd><ul class="first last simple">
<li>dump_to_file: Dump console contents to a text file.</li>
</ul>
</dd>
<dt><a class="reference external" href="https://bitbucket.org/pgularski/terminator-plugins">https://bitbucket.org/pgularski/terminator-plugins</a></dt>
<dd><ul class="first last simple">
<li>show_titlebar: Menu item to show/hide the titlebar.</li>
<li>searchplugin: Yup, another Googler.</li>
</ul>
</dd>
<dt><a class="reference external" href="https://bitbucket.org/johnsanchezc/terminator-applauncher">https://bitbucket.org/johnsanchezc/terminator-applauncher</a></dt>
<dd><ul class="first last simple">
<li>applauncher: A launcher/set-up tool (which is built-in now, possibly redundant)</li>
</ul>
</dd>
<dt><a class="reference external" href="https://www.snip2code.com/Snippet/58595/Terminator-plugin----log-the-output-of-t">https://www.snip2code.com/Snippet/58595/Terminator-plugin&#8212;-log-the-output-of-t</a></dt>
<dd><ul class="first last simple">
<li>my_logger: Log the output to a file with a time-stamp as the name, and prefix each line with the time.
(Seems to be similar to, or derived from, the included one)</li>
</ul>
</dd>
</dl>
</div>
<div class="section" id="installing-a-plugin">
<h2>Installing a plugin<a class="headerlink" href="#installing-a-plugin" title="Permalink to this headline"></a></h2>
<p>A plugin can be installed by adding the main python file (along with
any additional files) in one of two locations:</p>
<dl class="docutils">
<dt><code class="docutils literal"><span class="pre">/usr/[local/]share/terminator/terminatorlib/plugins/</span></code></dt>
<dd>This will need root permissions to do. The optional <code class="docutils literal"><span class="pre">local/</span></code> is
usually for packages installed by hand, rather than through the
package manager, and this depends on how Terminator was installed
on your system.</dd>
<dt><code class="docutils literal"><span class="pre">~/.config/terminator/plugins/</span></code></dt>
<dd>This allows you to use plugins without needing root.</dd>
</dl>
</div>
<div class="section" id="creating-your-own-plugins">
<h2>Creating your own plugins<a class="headerlink" href="#creating-your-own-plugins" title="Permalink to this headline"></a></h2>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">The following guide is initially sourced from a <a class="reference external" href="http://www.tenshu.net/2010/04/writing-terminator-plugins.html">tutorial</a>
written by Chris Jones back in April 2010. I&#8217;m reproducing
it here as a precaution, although I don&#8217;t expect the
original will disappear. It will get rewritten and expanded
as more knowledge and information is added.</p>
</div>
<p>One of the features of the new 0.9x series of Terminator releases
that hasn&#8217;t had a huge amount of announcement/discussion yet is the
plugin system. I&#8217;ve posted previously about the decisions that went
into the design of the plugin framework, but I figured now would be
a good time to look at how to actually take advantage of it.</p>
<p>While the plugin system is really generic, so far there are only two
points in the Terminator code that actually look for plugins - the
Terminal context menu and the default URL opening code. If you find
you&#8217;d like to write a plugin that interacts with a different part of
Terminator, please let me know, I&#8217;d love to see some clever uses of
plugins and I definitely want to expand the number of points that
plugins can hook into.</p>
<div class="section" id="the-basics-of-a-plugin">
<h3>The basics of a plugin<a class="headerlink" href="#the-basics-of-a-plugin" title="Permalink to this headline"></a></h3>
<p>A plugin is a class in a <code class="docutils literal"><span class="pre">.py</span></code> file in <code class="docutils literal"><span class="pre">terminatorlib/plugins</span></code> or
<code class="docutils literal"><span class="pre">~/.config/terminator/plugins</span></code>, but not all classes are automatically
treated as plugins. Terminator will examine each of the .py files it
finds for a list called <code class="docutils literal"><span class="pre">available</span></code> and it will load each of the
classes mentioned therein.</p>
<p>Additionally, it would be a good idea to import <code class="docutils literal"><span class="pre">terminatorlib.plugin</span></code>
as that contains the base classes that other plugins should be derived
from.</p>
<p>A quick example:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">terminatorlib.plugin</span> <span class="kn">as</span> <span class="nn">plugin</span>
<span class="n">available</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;myfirstplugin&#39;</span><span class="p">]</span>
<span class="k">class</span> <span class="nc">myfirstplugin</span><span class="p">(</span><span class="n">plugin</span><span class="o">.</span><span class="n">SomeBasePluginClass</span><span class="p">):</span>
<span class="c"># etc.</span>
</pre></div>
</div>
<p>So now let&#8217;s move on to the simplest type of plugin currently available
in Terminator, a URL handler.</p>
</div>
<div class="section" id="url-handlers">
<h3>URL Handlers<a class="headerlink" href="#url-handlers" title="Permalink to this headline"></a></h3>
<p>This type of plugin adds new regular expressions to match text in the
terminal that should be handled as URLs. We ship an example of this
with Terminator, it&#8217;s a handler that adds support for the commonly
used format for Launchpad. Ignoring the comments and the basics above,
this is ultimately all it is:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="k">class</span> <span class="nc">LaunchpadBugURLHandler</span><span class="p">(</span><span class="n">plugin</span><span class="o">.</span><span class="n">URLHandler</span><span class="p">):</span>
<span class="n">capabilities</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;url_handler&#39;</span><span class="p">]</span>
<span class="n">handler_name</span> <span class="o">=</span> <span class="s">&#39;launchpad_bug&#39;</span>
<span class="n">match</span> <span class="o">=</span> <span class="s">&#39;</span><span class="se">\\</span><span class="s">b(lp|LP):?\s?#?[0-9]+(,\s*#?[0-9]+)*</span><span class="se">\\</span><span class="s">b&#39;</span>
<span class="k">def</span> <span class="nf">callback</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">re</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="s">r&#39;[0-9]+&#39;</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="k">return</span><span class="p">(</span><span class="s">&#39;https://bugs.launchpad.net/bugs/</span><span class="si">%s</span><span class="s">&#39;</span> <span class="o">%</span> <span class="n">item</span><span class="p">)</span>
</pre></div>
</div>
<p>That&#8217;s it! Let&#8217;s break it down a little to see the important things
here:</p>
<ul class="simple">
<li>inherit from plugin.URLHandler if you want to handle URLs.</li>
<li>include &#8216;url_handler&#8217; in your capabilities list</li>
<li>URL handlers must specify a unique handler_name (no enforcement of
uniqueness is performed by Terminator, so use some common sense with
the namespace)</li>
<li>Terminator will call a method in your class called callback() and
pass it the text that was matched. You must return a valid URL
which will probably be based on this text.</li>
</ul>
<p>And that&#8217;s all there is to it really. Next time you start terminator
you should find the pattern you added gets handled as a URL!</p>
</div>
<div class="section" id="context-menu-items">
<h3>Context menu items<a class="headerlink" href="#context-menu-items" title="Permalink to this headline"></a></h3>
<p>This type of plugin is a little more involved, but not a huge amount
and as with URLHandler we ship an example in
<code class="docutils literal"><span class="pre">terminatorlib/plugins/custom_commands.py</span></code> which is a plugin that
allows users to add custom commands to be sent to the terminal when
selected. This also brings a second aspect of making more complex
plugins - storing configuration. Terminator&#8217;s shiny new configuration
system (based on the excellent ConfigObj) exposes some API for plugins
to use for loading and storing their configuration. The nuts and bolts
here are:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">terminatorlib.plugin</span> <span class="kn">as</span> <span class="nn">plugin</span>
<span class="kn">from</span> <span class="nn">terminatorlib.config</span> <span class="kn">import</span> <span class="n">Config</span>
<span class="n">available</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;CustomCommandsMenu&#39;</span><span class="p">]</span>
<span class="k">class</span> <span class="nc">CustomCommandsMenu</span><span class="p">(</span><span class="n">plugin</span><span class="o">.</span><span class="n">MenuItem</span><span class="p">):</span>
<span class="n">capabilities</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;terminal_menu&#39;</span><span class="p">]</span>
<span class="n">config</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">config</span> <span class="o">=</span> <span class="n">Config</span><span class="p">()</span>
<span class="n">myconfig</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">plugin_get_config</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span><span class="p">)</span>
<span class="c"># Now extract valid data from sections{}</span>
<span class="k">def</span> <span class="nf">callback</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">menuitems</span><span class="p">,</span> <span class="n">menu</span><span class="p">,</span> <span class="n">terminal</span><span class="p">):</span>
<span class="n">menuitems</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">gtk</span><span class="o">.</span><span class="n">MenuItem</span><span class="p">(</span><span class="s">&#39;some jazz&#39;</span><span class="p">))</span>
</pre></div>
</div>
<p>This is a pretty simplified example, but it&#8217;s sufficient to insert a
menu item that says &#8220;some jazz&#8221;. I&#8217;m not going to go into the detail
of hooking up a handler to the &#8216;activate&#8217; event of the MenuItem or
other PyGTK mechanics, but this gives you the basic detail. The method
that Terminator will call from your class is again &#8220;callback()&#8221; and
you get passed a list you should add your menu structure to, along
with references to the main menu object and the related Terminal. As
the plugin system expands and matures I&#8217;d like to be more formal about
the API that plugins should expect to be able to rely on, rather than
having them poke around inside classes like Config and Terminal.
Suggestions are welcome :)</p>
<p>Regarding the configuration storage API - the value returned by
Config.plugin_get_config() is just a dict, it&#8217;s whatever is currently
configured for your plugin&#8217;s name in the Terminator config file.
There&#8217;s no validation of this data, so you should pay attention to it
containing valid data. You can then set whatever you want in this
dict and pass it to Config().plugin_set_config() with the name of
your class and then call Config().save() to flush this out to disk
(I recommend that you be quite liberal about calling save()).</p>
</div>
<div class="section" id="wrap-up">
<h3>Wrap up<a class="headerlink" href="#wrap-up" title="Permalink to this headline"></a></h3>
<p>Right now that&#8217;s all there is to it. Please get in touch if you have
any suggestions or questions - I&#8217;d love to ship more plugins with
Terminator itself, and I can think of some great ideas. Probably the
most useful thing would be something to help customise Terminator for
heavy ssh users (see the earlier fork of Terminator called
&#8216;ssherminator&#8217;)</p>
</div>
</div>
</div>
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