From f68c5fff4b050ad4607ea1ef38cc30199778d5de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20L=C3=BCck?= <christian@lueck.tv>
Date: Fri, 12 Jun 2015 01:31:26 +0200
Subject: [PATCH] Support Readline::setInput() during 'line' event

---
 src/Readline.php       | 13 ++++++-------
 tests/ReadlineTest.php | 27 +++++++++++++++++++++++++++
 tests/bootstrap.php    | 11 +++++++++++
 3 files changed, 44 insertions(+), 7 deletions(-)

diff --git a/src/Readline.php b/src/Readline.php
index ac6ad58..1b22964 100644
--- a/src/Readline.php
+++ b/src/Readline.php
@@ -537,21 +537,20 @@ public function deleteChar($n)
 
     /**
      * process the current line buffer, emit event and redraw empty line
+     *
+     * @uses self::setInput()
      */
     protected function processLine()
     {
+        // store and reset/clear/redraw current input
         $line = $this->linebuffer;
+        $this->setInput('');
 
-        $this->emit('data', array($line));
-
+        // process stored input buffer
         if ($this->history !== null) {
             $this->history->addLine($line);
         }
-
-        $this->linebuffer = '';
-        $this->linepos = 0;
-
-        $this->redraw();
+        $this->emit('data', array($line));
     }
 
     protected function strlen($str)
diff --git a/tests/ReadlineTest.php b/tests/ReadlineTest.php
index d6b38c6..132977c 100644
--- a/tests/ReadlineTest.php
+++ b/tests/ReadlineTest.php
@@ -449,6 +449,33 @@ public function testCursorCellObeysCustomEchoAsterisk(Readline $readline)
         $this->assertEquals(3, $readline->getCursorCell());
     }
 
+    public function testEmitEmptyInputOnEnter()
+    {
+        $this->readline->on('data', $this->expectCallableOnceWith(''));
+        $this->readline->onKeyEnter();
+    }
+
+    public function testEmitInputOnEnterAndClearsInput()
+    {
+        $this->readline->setInput('test');
+        $this->readline->on('data', $this->expectCallableOnceWith('test'));
+        $this->readline->onKeyEnter();
+
+        $this->assertEquals('', $this->readline->getInput());
+    }
+
+    public function testSetInputDuringEmitKeepsInput()
+    {
+        $readline = $this->readline;
+
+        $readline->on('data', function ($line) use ($readline) {
+            $readline->setInput('test');
+        });
+        $readline->onKeyEnter();
+
+        $this->assertEquals('test', $readline->getInput());
+    }
+
     private function pushInputBytes(Readline $readline, $bytes)
     {
         foreach (str_split($bytes, 1) as $byte) {
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index e7d3165..4f81975 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -26,6 +26,17 @@ protected function expectCallableNever()
         return $mock;
     }
 
+    protected function expectCallableOnceWith($value)
+    {
+        $mock = $this->createCallableMock();
+        $mock
+            ->expects($this->once())
+            ->method('__invoke')
+            ->with($this->equalTo($value));
+
+        return $mock;
+    }
+
     protected function expectCallableOnceParameter($type)
     {
         $mock = $this->createCallableMock();