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331 lines
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331 lines
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HTML
3 years ago
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<main>
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<h1 id="configure-key-bindings"><a class="header" href="#configure-key-bindings">Configure Key Bindings</a></h1>
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<p>In xplr, each keyboard input passes through a bunch of handlers (e.g. <code>on_key</code>,
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<code>on_number</code>, <code>default</code> etc.) in a given order. If any of the handlers is
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configured to with an <a href="#action">action</a>, it will intercept the key and produce
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<a href="message.html#message">messages</a> for xplr to handle.</p>
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<h2 id="key-bindings"><a class="header" href="#key-bindings">Key Bindings</a></h2>
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<p>Key bindings contains the following information:</p>
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<ul>
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<li><a href="#on_key">on_key</a></li>
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<li><a href="#on_alphabet">on_alphabet</a></li>
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<li><a href="#on_number">on_number</a></li>
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<li><a href="#on_alphanumeric">on_alphanumeric</a></li>
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<li><a href="#on_special_character">on_special_character</a></li>
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<li><a href="#on_character">on_character</a></li>
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<li><a href="#on_navigation">on_navigation</a></li>
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<li><a href="#default">default</a></li>
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</ul>
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<h3 id="on_key"><a class="header" href="#on_key">on_key</a></h3>
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<p>Type: mapping of <a href="#key">Key</a> to nullable <a href="#action">Action</a></p>
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<p>Defines what to do when an exact key is pressed.</p>
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<h3 id="on_alphabet"><a class="header" href="#on_alphabet">on_alphabet</a></h3>
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<p>Type: nullable <a href="#action">Action</a></p>
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<p>An action to perform if the keyboard input is an alphabet and is not mapped via
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the <a href="#on_key">on_key</a> field.</p>
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<h3 id="on_number"><a class="header" href="#on_number">on_number</a></h3>
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<p>Type: nullable <a href="#action">Action</a></p>
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<p>An action to perform if the keyboard input is a number and is not mapped via
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the <a href="#on_key">on_key</a> field.</p>
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<h3 id="on_alphanumeric"><a class="header" href="#on_alphanumeric">on_alphanumeric</a></h3>
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<p>Type: nullable <a href="#action">Action</a></p>
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<p>An action to perform if the keyboard input is alphanumeric and is not mapped
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via the <a href="#on_key">on_key</a>, <a href="#on_alphabet">on_alphabet</a> or <a href="#on_number">on_number</a> field.</p>
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<h3 id="on_special_character"><a class="header" href="#on_special_character">on_special_character</a></h3>
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<p>Type: nullable <a href="#action">Action</a></p>
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<p>An action to perform if the keyboard input is a special character and is not
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mapped via the <a href="#on_key">on_key</a> field.</p>
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<h3 id="on_character"><a class="header" href="#on_character">on_character</a></h3>
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<p>Type: nullable <a href="#action">Action</a></p>
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<p>An action to perform if the keyboard input is a character and is not mapped
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via the <a href="#on_key">on_key</a>, <a href="#on_alphabet">on_alphabet</a>, <a href="#on_number">on_number</a>, <a href="#on_alphanumeric">on_alphanumeric</a>
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or <a href="#on_special_character">on_special_character</a> field.</p>
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<h3 id="on_navigation"><a class="header" href="#on_navigation">on_navigation</a></h3>
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<p>Type: nullable <a href="#action">Action</a></p>
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<p>An action to perform if the keyboard input is a navigation key and is not
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mapped via the <a href="#on_key">on_key</a> field.</p>
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<h3 id="default"><a class="header" href="#default">default</a></h3>
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<p>Type: nullable <a href="#action">Action</a></p>
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<p>Default action to perform in case if a keyboard input not mapped via any of the
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<code>on_*</code> fields mentioned above.</p>
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<h2 id="key"><a class="header" href="#key">Key</a></h2>
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<p>A key can be one of the following:</p>
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<ul>
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<li>0, 1, ... 9</li>
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<li>a, b, ... z</li>
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<li>A, B, ... Z</li>
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<li>f1, f2, ... f12</li>
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<li>backspace</li>
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<li>left</li>
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<li>right</li>
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<li>up</li>
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<li>down</li>
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<li>home</li>
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<li>end</li>
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<li>page-up</li>
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<li>page-down</li>
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<li>back-tab</li>
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<li>delete</li>
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<li>insert</li>
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<li>enter</li>
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<li>tab</li>
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<li>esc</li>
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<li>ctrl-a, ctrl-b, ... ctrl-z</li>
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<li>ctrl-backspace, ctrl-left, ... ctrl-esc</li>
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<li>alt-a, alt-b, ... alt-z</li>
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</ul>
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<p>And finally, the special characters - including space (<code>" "</code>) with their <code>ctrl</code>
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bindings.</p>
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<h2 id="action"><a class="header" href="#action">Action</a></h2>
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<p>An action contains the following information:</p>
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<ul>
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<li><a href="#help">help</a></li>
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<li><a href="#messages">messages</a></li>
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</ul>
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<h3 id="help"><a class="header" href="#help">help</a></h3>
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<p>Type: nullable string</p>
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<p>Description of what it does. If unspecified, it will be excluded from the help
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menu.</p>
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<h3 id="messages"><a class="header" href="#messages">messages</a></h3>
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<p>Type: A list of <a href="message.html#message">Message</a> to send.</p>
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<p>The list of messages to send when a key is pressed.</p>
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<h2 id="tutorial-adding-a-new-mode"><a class="header" href="#tutorial-adding-a-new-mode">Tutorial: Adding a New Mode</a></h2>
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<p>Assuming xplr is <a href="install.html">installed</a> and <a href="post-install.html">setup</a>, let's
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add our own mode to integrate xplr with <a href="https://github.com/junegunn/fzf">fzf</a>.</p>
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<p>We'll call it <code>fzxplr</code> mode.</p>
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<p>First, let's add a custom mode called <code>fzxplr</code>, and map the key <code>F</code> to an
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action that will call <code>fzf</code> to search and focus on a file or enter into a
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directory.</p>
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<pre><code class="language-lua">xplr.config.modes.custom.fzxplr = {
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name = "fzxplr",
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key_bindings = {
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on_key = {
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F = {
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help = "search",
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messages = {
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{
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BashExec = [===[
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PTH=$(cat "${XPLR_PIPE_DIRECTORY_NODES_OUT:?}" | awk -F/ '{print $NF}' | fzf)
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if [ -d "$PTH" ]; then
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echo ChangeDirectory: "'"${PWD:?}/${PTH:?}"'" >> "${XPLR_PIPE_MSG_IN:?}"
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else
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echo FocusPath: "'"${PWD:?}/${PTH:?}"'" >> "${XPLR_PIPE_MSG_IN:?}"
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fi
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]===]
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},
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"PopMode",
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},
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},
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},
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default = {
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messages = {
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"PopMode",
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},
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},
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},
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}
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</code></pre>
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<p>As you can see, the key <code>F</code> in mode <code>fzxplr</code> (the name can be anything)
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executes a script in <code>bash</code>.</p>
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<p><code>BashExec</code>, <code>PopMode</code>, <code>SwitchModeBuiltin</code>, <code>ChangeDirectory</code> and <code>FocusPath</code>
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are <a href="message.html#message">messages</a>, <code>$XPLR_PIPE_MSG_IN</code>,
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<code>$XPLR_PIPE_DIRECTORY_NODES_OUT</code> are
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<a href="message.html#environment-variables">environment variables</a> exported by <code>xplr</code>
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before executing the command. They contain the path to the
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<a href="message.html#input-pipe">input</a> and <a href="message.html#output-pipes">output</a> pipes that
|
||
|
allows external tools to interact with <code>xplr</code>.</p>
|
||
|
<p>Now that we have our new mode ready, let's add an entry point to this mode via
|
||
|
the <code>default</code> mode.</p>
|
||
|
<pre><code class="language-lua">xplr.config.modes.builtin.default.key_bindings.on_key["F"] = {
|
||
|
help = "fzf mode",
|
||
|
messages = {
|
||
|
{ SwitchModeCustom = "fzxplr" },
|
||
|
},
|
||
|
}
|
||
|
</code></pre>
|
||
|
<p>Now let's try out the new <code>xplr</code>-<code>fzf</code> integration.</p>
|
||
|
<p><a href="https://gifyu.com/image/tW86"><img src="https://s3.gifyu.com/images/xplr-fzf.gif" alt="xplr-fzf.gif" /></a></p>
|
||
|
<hr />
|
||
|
<p>Visit <a href="awesome-plugins.html">Awesome Plugins</a> for more <a href="awesome-plugins.html#integration">integration</a> options.</p>
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