Added getInput() method for basic async input
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examples/input.php
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31
examples/input.php
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@ -0,0 +1,31 @@
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<?php
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/*
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* This example demonstrates how to use events to catch commands that
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* have not been handled by any context or builtin.
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*
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*/
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require_once __DIR__."/../vendor/autoload.php";
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use NoccyLabs\Shell\Shell;
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use NoccyLabs\Shell\Style;
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use NoccyLabs\Shell\Context;
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$myShell = new Shell();
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// Set the initial prompt, not really needed.
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$myShell->setPrompt("test>");
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// Create an anonymous context and add a command
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$ctx = $myShell->createContext("root");
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$ctx->addCommand("hello", function () use ($myShell) {
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$myShell->getInput("What is your name?", function ($name) use ($myShell) {
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echo "Hello, {$name}\n";
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$myShell->getInput("Who is your daddy and what does he do?", function ($daddy) {
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echo "{$daddy}? Oookay...\n";
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});
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});
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});
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// Run the shell
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$myShell->run();
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@ -54,6 +54,18 @@ class Shell
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* @var Style The style applied to the input text
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*/
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protected $input_style = null;
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/**
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* @var callable The callback to pass the input on to
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*/
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protected $input_callback = null;
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/**
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* @var string Question prompt for getInput()
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*/
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protected $input_prompt = null;
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/**
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* @var string The prompt before changing to $input_prompt
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*/
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protected $input_last_prompt = null;
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/**
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* Constructor
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@ -227,7 +239,7 @@ class Shell
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public function setPrompt($text)
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{
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$this->prompt = $text;
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if ($this->lineReader) {
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$this->lineReader->setPromptText($text);
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}
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@ -532,6 +544,31 @@ class Shell
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return $event;
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}
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public function getInput($prompt, callable $callback)
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{
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$this->addListener(Shell::EVT_UPDATE_PROMPT, [ $this, "onInputPrompt" ], $prompt);
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$this->addListener(Shell::EVT_BEFORE_COMMAND, [ $this, "onInputHandler" ], $this->prompt, $callback);
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}
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public function onInputPrompt(Event $e, $prompt)
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{
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$this->setPrompt($prompt);
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$e->stopPropagation();
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$this->removeListener(Shell::EVT_UPDATE_PROMPT, [ $this, "onInputPrompt" ], $prompt);
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}
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public function onInputHandler(Event $e, $last_prompt, $callback)
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{
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// Restore the prompt
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$this->setPrompt($last_prompt);
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// Remove the listeners and compose the result string
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$this->removeListener(Shell::EVT_BEFORE_COMMAND, [ $this, "onInputHandler" ], $last_prompt, $callback);
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$input = trim($e->command." ".join(" ",$e->args));
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$e->stopPropagation();
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// Call the callback
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call_user_func($callback, $input);
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}
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/**
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* Stop the shell; calling this method will cause the main run() to return.
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*
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