Add null check to KeySpecParser

Change-Id: Ic37db8cbf8f83f753d7381e1edba8eac1ef1ceb1

2 files changed, 20 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java b/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java
index 292bf35cb..2a0dad678 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java
@@ -120,6 +120,10 @@ public final class KeySpecParser {
     }
 
     public static String getLabel(final String keySpec) {
+        if (keySpec == null) {
+            // TODO: Throw {@link KeySpecParserError} once Key.keyLabel attribute becomes mandatory.
+            return null;
+        }
         if (hasIcon(keySpec)) {
             return null;
         }
@@ -140,6 +144,10 @@ public final class KeySpecParser {
     }
 
     public static String getOutputText(final String keySpec) {
+        if (keySpec == null) {
+            // TODO: Throw {@link KeySpecParserError} once Key.keyLabel attribute becomes mandatory.
+            return null;
+        }
         final int labelEnd = indexOfLabelEnd(keySpec);
         if (hasCode(keySpec, labelEnd)) {
             return null;
@@ -165,6 +173,10 @@ public final class KeySpecParser {
     }
 
     public static int getCode(final String keySpec, final KeyboardCodesSet codesSet) {
+        if (keySpec == null) {
+            // TODO: Throw {@link KeySpecParserError} once Key.keyLabel attribute becomes mandatory.
+            return CODE_UNSPECIFIED;
+        }
         final int labelEnd = indexOfLabelEnd(keySpec);
         if (hasCode(keySpec, labelEnd)) {
             checkDoubleLabelEnd(keySpec, labelEnd);
@@ -187,6 +199,7 @@ public final class KeySpecParser {
         return (StringUtils.codePointCount(label) == 1) ? label.codePointAt(0) : CODE_OUTPUT_TEXT;
     }
 
+    // TODO: Make this method private once Key.code attribute is removed.
     public static int parseCode(final String text, final KeyboardCodesSet codesSet,
             final int defCode) {
         if (text == null) {
@@ -202,6 +215,10 @@ public final class KeySpecParser {
     }
 
     public static int getIconId(final String keySpec) {
+        if (keySpec == null) {
+            // TODO: Throw {@link KeySpecParserError} once Key.keyLabel attribute becomes mandatory.
+            return KeyboardIconsSet.ICON_UNDEFINED;
+        }
         if (!hasIcon(keySpec)) {
             return KeyboardIconsSet.ICON_UNDEFINED;
         }
diff --git a/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java b/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java
index d3bc0c2b2..0551e9e98 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/MoreKeySpec.java
@@ -46,6 +46,9 @@ public final class MoreKeySpec {
 
     public MoreKeySpec(final String moreKeySpec, boolean needsToUpperCase, final Locale locale,
             final KeyboardCodesSet codesSet) {
+        if (TextUtils.isEmpty(moreKeySpec)) {
+            throw new KeySpecParser.KeySpecParserError("Empty more key spec");
+        }
         mLabel = StringUtils.toUpperCaseOfStringForLocale(
                 KeySpecParser.getLabel(moreKeySpec), needsToUpperCase, locale);
         final int code = StringUtils.toUpperCaseOfCodeForLocale(