From a4e6d962d78b26f5112d48c4f88c1e6234d0cae7 Mon Sep 17 00:00:00 2001
From: Chia-liang Kao
Date: Tue, 29 Oct 2013 00:42:47 +0800
Subject: feat(input): hold listener during text composition

When composing text in CJKV, intermediate buffer for unfinished text should not
be updating the bound scope variables.

Closes #4684
---
 src/ng/directive/input.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/ng/directive/input.js')

diff --git a/src/ng/directive/input.js b/src/ng/directive/input.js
index e264db38..ea4d84f4 100644
--- a/src/ng/directive/input.js
+++ b/src/ng/directive/input.js
@@ -392,8 +392,21 @@ var inputType = {
 
 
 function textInputType(scope, element, attr, ctrl, $sniffer, $browser) {
+  // In composition mode, users are still inputing intermediate text buffer,
+  // hold the listener until composition is done.
+  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent
+  var composing = false;
+
+  element.on('compositionstart', function() {
+    composing = true;
+  });
+
+  element.on('compositionend', function() {
+    composing = false;
+  });
 
   var listener = function() {
+    if (composing) return;
     var value = element.val();
 
     // By default we will trim the value
-- 
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