Fix error when spell-checking an empty text (#1489831)

4 files changed, 9 insertions, 1 deletions

diff --git a/program/js/googiespell.js b/program/js/googiespell.js
index c33c56872..de58b7e87 100644
--- a/program/js/googiespell.js
+++ b/program/js/googiespell.js
@@ -289,6 +289,7 @@ this.prepare = function(ignore, no_indicator)
     this.cnt_errors_fixed = 0;
     this.cnt_errors = 0;
     this.setStateChanged('checking_spell');
+    this.orginal_text = '';
 
     if (!no_indicator && this.main_controller)
         this.appendIndicator(this.spell_span);
diff --git a/program/lib/Roundcube/rcube_spellcheck_googie.php b/program/lib/Roundcube/rcube_spellcheck_googie.php
index 3777942a6..f9e450fdd 100644
--- a/program/lib/Roundcube/rcube_spellcheck_googie.php
+++ b/program/lib/Roundcube/rcube_spellcheck_googie.php
@@ -56,6 +56,10 @@ class rcube_spellcheck_googie extends rcube_spellcheck_engine
     {
         $this->content = $text;
 
+        if (empty($text)) {
+            return $this->matches = array();
+        }
+
         // spell check uri is configured
         $url = rcube::get_instance()->config->get('spellcheck_uri');
 
diff --git a/program/steps/utils/spell.inc b/program/steps/utils/spell.inc
index c8807e32f..696fa6005 100644
--- a/program/steps/utils/spell.inc
+++ b/program/steps/utils/spell.inc
@@ -37,6 +37,9 @@ if ($learn_word) {
     $spellchecker->add_word($data);
     $result = '<?xml version="1.0" encoding="'.RCUBE_CHARSET.'"?><learnwordresult></learnwordresult>';
 }
+else if (empty($data)) {
+    $result = '<?xml version="1.0" encoding="'.RCUBE_CHARSET.'"?><spellresult charschecked="0"></spellresult>';
+}
 else {
     $spellchecker->check($data);
     $result = $spellchecker->get_xml();
diff --git a/program/steps/utils/spell_html.inc b/program/steps/utils/spell_html.inc
index 27b14acef..5935dc13f 100644
--- a/program/steps/utils/spell_html.inc
+++ b/program/steps/utils/spell_html.inc
@@ -35,7 +35,7 @@ $result['id'] = $request['id'];
 $spellchecker = new rcube_spellchecker($lang);
 
 if ($request['method'] == 'checkWords') {
-    $result['result'] = $spellchecker->get_words($data);
+    $result['result'] = empty($data) ? array() : $spellchecker->get_words($data);
 }
 else if ($request['method'] == 'getSuggestions') {
     $result['result'] = $spellchecker->get_suggestions($data);