Update Color Scheme summary explicitly

Bug: 11622614
Change-Id: I5464054425e4d688eaa39f96ba9a3a3c613c6f42

2 files changed, 44 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/settings/Settings.java b/java/src/com/android/inputmethod/latin/settings/Settings.java
index dc005bbdf..df2c6907f 100644
--- a/java/src/com/android/inputmethod/latin/settings/Settings.java
+++ b/java/src/com/android/inputmethod/latin/settings/Settings.java
@@ -65,6 +65,7 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
             "pref_show_language_switch_key";
     public static final String PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST =
             "pref_include_other_imes_in_language_switch_list";
+    public static final String PREF_KEYBOARD_LAYOUT = "pref_keyboard_layout_20110916";
     public static final String PREF_CUSTOM_INPUT_STYLES = "custom_input_styles";
     public static final String PREF_KEY_PREVIEW_POPUP_DISMISS_DELAY =
             "pref_key_preview_popup_dismiss_delay";
@@ -262,6 +263,28 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
         return prefs.getBoolean(PREF_SHOW_LANGUAGE_SWITCH_KEY, true);
     }
 
+    public static int readKeyboardThemeIndex(final SharedPreferences prefs, final Resources res) {
+        final String defaultThemeIndex = res.getString(
+                R.string.config_default_keyboard_theme_index);
+        final String themeIndex = prefs.getString(PREF_KEYBOARD_LAYOUT, defaultThemeIndex);
+        try {
+            return Integer.valueOf(themeIndex);
+        } catch (final NumberFormatException e) {
+            // Format error, returns default keyboard theme index.
+            Log.e(TAG, "Illegal keyboard theme in preference: " + themeIndex + ", default to "
+                    + defaultThemeIndex, e);
+            return Integer.valueOf(defaultThemeIndex);
+        }
+    }
+
+    public static int resetAndGetDefaultKeyboardThemeIndex(final SharedPreferences prefs,
+            final Resources res) {
+        final String defaultThemeIndex = res.getString(
+                R.string.config_default_keyboard_theme_index);
+        prefs.edit().putString(PREF_KEYBOARD_LAYOUT, defaultThemeIndex).apply();
+        return Integer.valueOf(defaultThemeIndex);
+    }
+
     public static String readPrefAdditionalSubtypes(final SharedPreferences prefs,
             final Resources res) {
         final String predefinedPrefSubtypes = AdditionalSubtypeUtils.createPrefSubtypes(
diff --git a/java/src/com/android/inputmethod/latin/settings/SettingsFragment.java b/java/src/com/android/inputmethod/latin/settings/SettingsFragment.java
index cb7dda655..5c60a7350 100644
--- a/java/src/com/android/inputmethod/latin/settings/SettingsFragment.java
+++ b/java/src/com/android/inputmethod/latin/settings/SettingsFragment.java
@@ -255,6 +255,7 @@ public final class SettingsFragment extends InputMethodSettingsFragment
         }
         updateShowCorrectionSuggestionsSummary();
         updateKeyPreviewPopupDelaySummary();
+        updateColorSchemeSummary(prefs, getResources());
         updateCustomInputStylesSummary();
     }
 
@@ -288,6 +289,7 @@ public final class SettingsFragment extends InputMethodSettingsFragment
         ensureConsistencyOfAutoCorrectionSettings();
         updateShowCorrectionSuggestionsSummary();
         updateKeyPreviewPopupDelaySummary();
+        updateColorSchemeSummary(prefs, res);
         refreshEnablingsOfKeypressSoundAndVibrationSettings(prefs, getResources());
     }
 
@@ -305,6 +307,25 @@ public final class SettingsFragment extends InputMethodSettingsFragment
                         mShowCorrectionSuggestionsPreference.getValue())]);
     }
 
+    private void updateColorSchemeSummary(final SharedPreferences prefs, final Resources res) {
+        // Because the "%s" summary trick of {@link ListPreference} doesn't work properly before
+        // KitKat, we need to update the summary by code.
+        final Preference preference = findPreference(Settings.PREF_KEYBOARD_LAYOUT);
+        if (!(preference instanceof ListPreference)) {
+            Log.w(TAG, "Can't find Keyboard Color Scheme preference");
+            return;
+        }
+        final ListPreference colorSchemePreference = (ListPreference)preference;
+        final int themeIndex = Settings.readKeyboardThemeIndex(prefs, res);
+        int entryIndex = colorSchemePreference.findIndexOfValue(Integer.toString(themeIndex));
+        if (entryIndex < 0) {
+            final int defaultThemeIndex = Settings.resetAndGetDefaultKeyboardThemeIndex(prefs, res);
+            entryIndex = colorSchemePreference.findIndexOfValue(
+                    Integer.toString(defaultThemeIndex));
+        }
+        colorSchemePreference.setSummary(colorSchemePreference.getEntries()[entryIndex]);
+    }
+
     private void updateCustomInputStylesSummary() {
         final PreferenceScreen customInputStyles =
                 (PreferenceScreen)findPreference(Settings.PREF_CUSTOM_INPUT_STYLES);