Settings: Add touchscreen hovering support

Change-Id: I5e8d607cb7530e4e1addaf545f520f672cdc5c10

3 files changed, 36 insertions, 1 deletions

diff --git a/res/values/cm_strings.xml b/res/values/cm_strings.xml
index ab05bab..1708090 100644
--- a/res/values/cm_strings.xml
+++ b/res/values/cm_strings.xml
@@ -539,4 +539,8 @@
 
     <!-- Stylus gestures -->
     <string name="stylus_app_not_installed">%s is not installed</string>
+
+    <!-- Touchscreen hovering -->
+    <string name="touchscreen_hovering_title">Touchscreen hovering</string>
+    <string name="touchscreen_hovering_summary">Allows you to hover the screen like a mouse in web browsers, remote desktops, etc</string>
 </resources>
diff --git a/res/xml/language_settings.xml b/res/xml/language_settings.xml
index 94aa73b..5cd619d 100644
--- a/res/xml/language_settings.xml
+++ b/res/xml/language_settings.xml
@@ -104,6 +104,12 @@
                 android:summary="@string/high_touch_sensitivity_summary"
                 android:defaultValue="false" />
 
+        <SwitchPreference
+                android:key="touchscreen_hovering"
+                android:title="@string/touchscreen_hovering_title"
+                android:summary="@string/touchscreen_hovering_summary"
+                android:defaultValue="false" />
+
         <!-- Gesture pad settings -->
         <Preference
             android:key="gesture_pad_settings">
diff --git a/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java b/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java
index bc50d4f..f796ed8 100644
--- a/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java
+++ b/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java
@@ -75,6 +75,7 @@ import java.util.Locale;
 import java.util.TreeSet;
 
 import org.cyanogenmod.hardware.HighTouchSensitivity;
+import org.cyanogenmod.hardware.TouchscreenHovering;
 
 public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
         implements Preference.OnPreferenceChangeListener, InputManager.InputDeviceListener,
@@ -87,8 +88,9 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
     private static final String KEY_USER_DICTIONARY_SETTINGS = "key_user_dictionary_settings";
     private static final String KEY_POINTER_SETTINGS_CATEGORY = "pointer_settings_category";
     private static final String KEY_PREVIOUSLY_ENABLED_SUBTYPES = "previously_enabled_subtypes";
-    private static final String KEY_TRACKPAD_SETTINGS = "gesture_pad_settings";
     private static final String KEY_HIGH_TOUCH_SENSITIVITY = "high_touch_sensitivity";
+    private static final String KEY_TOUCHSCREEN_HOVERING = "touchscreen_hovering";
+    private static final String KEY_TRACKPAD_SETTINGS = "gesture_pad_settings";
     private static final String KEY_STYLUS_GESTURES = "stylus_gestures";
     private static final String KEY_STYLUS_ICON_ENABLED = "stylus_icon_enabled";
 
@@ -99,6 +101,7 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
     private ListPreference mShowInputMethodSelectorPref;
     private SwitchPreference mStylusIconEnabled;
     private SwitchPreference mHighTouchSensitivity;
+    private SwitchPreference mTouchscreenHovering;
     private PreferenceCategory mKeyboardSettingsCategory;
     private PreferenceCategory mHardKeyboardCategory;
     private PreferenceCategory mGameControllerCategory;
@@ -184,6 +187,8 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
         mStylusIconEnabled = (SwitchPreference) findPreference(KEY_STYLUS_ICON_ENABLED);
         mHighTouchSensitivity = (SwitchPreference) findPreference(KEY_HIGH_TOUCH_SENSITIVITY);
 
+        mTouchscreenHovering = (SwitchPreference) findPreference(KEY_TOUCHSCREEN_HOVERING);
+
         if (pointerSettingsCategory != null) {
             if (!getResources().getBoolean(com.android.internal.R.bool.config_stylusGestures)) {
                 pointerSettingsCategory.removePreference(mStylusGestures);
@@ -197,6 +202,15 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
                 mHighTouchSensitivity.setChecked(HighTouchSensitivity.isEnabled());
             }
 
+            if (!isTouchscreenHoveringSupported()) {
+                pointerSettingsCategory.removePreference(mTouchscreenHovering);
+                mTouchscreenHovering = null;
+            } else {
+                mTouchscreenHovering.setChecked(TouchscreenHovering.isEnabled());
+            }
+
+            Utils.updatePreferenceToSpecificActivityFromMetaDataOrRemove(getActivity(),
+                            pointerSettingsCategory, KEY_TRACKPAD_SETTINGS);
             if (pointerSettingsCategory.getPreferenceCount() == 0) {
                 getPreferenceScreen().removePreference(pointerSettingsCategory);
             }
@@ -391,6 +405,8 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
             }
         } else if (preference == mHighTouchSensitivity) {
             return HighTouchSensitivity.setEnabled(mHighTouchSensitivity.isChecked());
+        } else if (preference == mTouchscreenHovering) {
+            return TouchscreenHovering.setEnabled(mTouchscreenHovering.isChecked());
         }
         return super.onPreferenceTreeClick(preferenceScreen, preference);
     }
@@ -677,6 +693,15 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
         }
     }
 
+   private static boolean isTouchscreenHoveringSupported() {
+        try {
+            return TouchscreenHovering.isSupported();
+        } catch (NoClassDefFoundError e) {
+            // Hardware abstraction framework not installed
+            return false;
+        }
+    }
+
     private static boolean haveInputDeviceWithVibrator() {
         final int[] devices = InputDevice.getDeviceIds();
         for (int i = 0; i < devices.length; i++) {