Inverted lab preference

Change-Id: I28636302e00a23ee65e2c63e5ebe4bebdc4576c4

5 files changed, 22 insertions, 3 deletions

diff --git a/res/values/strings.xml b/res/values/strings.xml
index d7f2934..a5d40e4 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -642,6 +642,10 @@
     <!-- Summary for the fullscreen lab feature [CHAR LIMIT=120] -->
     <string name="pref_lab_fullscreen_summary">
       Use fullscreen mode to hide the status bar.</string>
+    <!-- Title for the inverted screen lab feature. This causes the screen to render with inverted colors (black becomes white and vice versa) [CHAR LIMIT=40] -->
+    <string name="pref_lab_inverted">Inverted Rendering</string>
+    <!-- Summary for the inverted screen lab feature. [CHAR LIMIT=120] -->
+    <string name="pref_lab_inverted_summary">Checking this causes the browser to invert colors. Black will become white and vice versa.</string>
     <!-- Title for bandwidth management preference [CHAR LIMIT=25] -->
     <string name="pref_data_title">Bandwidth Management</string>
     <!-- Title for search preloading [CHAR LIMIT=40] -->
diff --git a/res/xml-sw600dp/lab_preferences.xml b/res/xml-sw600dp/lab_preferences.xml
index 1dbec88..512c8c1 100644
--- a/res/xml-sw600dp/lab_preferences.xml
+++ b/res/xml-sw600dp/lab_preferences.xml
@@ -16,17 +16,19 @@
 
 <PreferenceScreen
         xmlns:android="http://schemas.android.com/apk/res/android" >
-
     <CheckBoxPreference
         android:key="enable_quick_controls"
         android:defaultValue="false"
         android:title="@string/pref_lab_quick_controls"
         android:summary="@string/pref_lab_quick_controls_summary" />
-
     <CheckBoxPreference
         android:key="use_instant_search"
         android:defaultValue="false"
         android:title="@string/pref_use_instant_search"
         android:summary="@string/pref_use_instant_search_summary" />
-
+    <CheckBoxPreference
+        android:key="inverted"
+        android:defaultValue="false"
+        android:title="@string/pref_lab_inverted"
+        android:summary="@string/pref_lab_inverted_summary" />
 </PreferenceScreen>
diff --git a/res/xml/lab_preferences.xml b/res/xml/lab_preferences.xml
index 3320cee..a3de6ca 100644
--- a/res/xml/lab_preferences.xml
+++ b/res/xml/lab_preferences.xml
@@ -26,4 +26,9 @@
         android:defaultValue="false"
         android:title="@string/pref_lab_fullscreen"
         android:summary="@string/pref_lab_fullscreen_summary" />
+    <CheckBoxPreference
+        android:key="inverted"
+        android:defaultValue="false"
+        android:title="@string/pref_lab_inverted"
+        android:summary="@string/pref_lab_inverted_summary" />
 </PreferenceScreen>
diff --git a/src/com/android/browser/BrowserSettings.java b/src/com/android/browser/BrowserSettings.java
index 4d41426..dcc3269 100644
--- a/src/com/android/browser/BrowserSettings.java
+++ b/src/com/android/browser/BrowserSettings.java
@@ -205,6 +205,9 @@ public class BrowserSettings implements OnSharedPreferenceChangeListener,
         } else {
             settings.setUserAgentString(USER_AGENTS[getUserAgent()]);
         }
+
+        settings.setProperty("gfxInvertedScreen",
+                useInvertedRendering() ? "true" : "false");
     }
 
     /**
@@ -674,6 +677,10 @@ public class BrowserSettings implements OnSharedPreferenceChangeListener,
         return mPrefs.getBoolean(PREF_FULLSCREEN, false);
     }
 
+    public boolean useInvertedRendering() {
+        return mPrefs.getBoolean(PREF_INVERTED, false);
+    }
+
     // -----------------------------
     // getter/setters for privacy_security_preferences.xml
     // -----------------------------
diff --git a/src/com/android/browser/PreferenceKeys.java b/src/com/android/browser/PreferenceKeys.java
index 08ee91f..4174732 100644
--- a/src/com/android/browser/PreferenceKeys.java
+++ b/src/com/android/browser/PreferenceKeys.java
@@ -77,6 +77,7 @@ public interface PreferenceKeys {
     static final String PREF_ENABLE_QUICK_CONTROLS = "enable_quick_controls";
     static final String PREF_USE_INSTANT_SEARCH = "use_instant_search";
     static final String PREF_FULLSCREEN = "fullscreen";
+    static final String PREF_INVERTED = "inverted";
 
     // ----------------------
     // Keys for privacy_security_preferences.xml