Merge branch 'bugFix/#478_dose_not_match_scroll_on_keyboard_up' into 'release_sp3'

#478対応。

See merge request !32

public_new/js/chat.js

@@ -414,6 +414,26 @@ $(function() {
         }
     });
 
+    var beforeHeight;
+    var beforeScroll;
+    window.addEventListener("resize", function() {
+        var afterHeight = window.innerHeight;
+        if (beforeHeight > afterHeight) {
+            //キーボード表示時
+            var moreScroll = beforeHeight - afterHeight;
+            $('.room_container').css('margin-bottom', 0);
+            window.scrollTo(0, beforeScroll + moreScroll - $('.footer_content_b').height());
+
+        } else {
+            //キーボード非表示
+            $('.room_container').css('margin-bottom', $('.footer-wrap').height());
+            window.scrollTo(0, beforeScroll);
+        }
+    });
+    $('#messageInput').focusin(function(e) {
+        beforeHeight = window.innerHeight;
+        beforeScroll = window.scrollY;
+    })
 
     // チャットルーム
     // メッセージ検索イベント