[2/2] Camera button support

Add support for camera button

Based on commit http://review.cyanogenmod.org/#/c/52046/

This patch adds:
- Use camera button as wake key
- Use focus button as peek and wake key
- Use camera button to launch (secure) camera

Depends on
[1/2] Camera button support in frameworks/base

Change-Id: Idb959f24fec880d360afebf194a0bc573e011438

3 files changed, 57 insertions, 0 deletions

diff --git a/res/values/cm_strings.xml b/res/values/cm_strings.xml
index 9cc9a66..218284e 100644
--- a/res/values/cm_strings.xml
+++ b/res/values/cm_strings.xml
@@ -333,6 +333,7 @@
     <string name="hardware_keys_menu_key_title">Menu button</string>
     <string name="hardware_keys_assist_key_title">Search button</string>
     <string name="hardware_keys_appswitch_key_title">Recents button</string>
+    <string name="hardware_keys_camera_key_title">Camera button</string>
     <string name="hardware_keys_volume_keys_title">Volume buttons</string>
     <string name="hardware_keys_short_press_title">Short press action</string>
     <string name="hardware_keys_long_press_title">Long press action</string>
@@ -346,6 +347,10 @@
     <string name="hardware_keys_action_launch_camera">Launch camera</string>
     <string name="hardware_keys_action_sleep">Turn screen off</string>
     <string name="hardware_keys_action_last_app">Last app</string>
+    <string name="camera_sleep_on_release_title">Screen peek</string>
+    <string name="camera_sleep_on_release_summary">A half press will keep the screen on only while the button is held down</string>
+    <string name="camera_launch_title">Launch camera</string>
+    <string name="camera_launch_summary">A longpress and release will launch camera</string>
     <string name="volbtn_music_controls_title">Playback control</string>
     <string name="volbtn_music_controls_summary">When the screen is off, long pressing the volume keys will seek music tracks</string>
     <string name="volbtn_cursor_control_title">Keyboard cursor control</string>
diff --git a/res/xml/button_settings.xml b/res/xml/button_settings.xml
index 773aebb..272bc22 100644
--- a/res/xml/button_settings.xml
+++ b/res/xml/button_settings.xml
@@ -215,6 +215,30 @@
     </PreferenceCategory>
 
     <PreferenceCategory
+        android:key="camera_key"
+        android:title="@string/hardware_keys_camera_key_title"
+        settings:advanced="true">
+
+        <com.android.settings.cyanogenmod.SystemSettingSwitchPreference
+            android:key="camera_wake_screen"
+            android:title="@string/button_wake_title"
+            android:defaultValue="false" />
+
+        <com.android.settings.cyanogenmod.SystemSettingSwitchPreference
+            android:key="camera_sleep_on_release"
+            android:title="@string/camera_sleep_on_release_title"
+            android:summary="@string/camera_sleep_on_release_summary"
+            android:defaultValue="false" />
+
+        <com.android.settings.cyanogenmod.SystemSettingSwitchPreference
+            android:key="camera_launch"
+            android:title="@string/camera_launch_title"
+            android:summary="@string/camera_launch_summary"
+            android:defaultValue="false" />
+
+    </PreferenceCategory>
+
+    <PreferenceCategory
         android:key="volume_keys"
         android:title="@string/hardware_keys_volume_keys_title" >
 
diff --git a/src/com/android/settings/ButtonSettings.java b/src/com/android/settings/ButtonSettings.java
index 73296d5..0c09601 100644
--- a/src/com/android/settings/ButtonSettings.java
+++ b/src/com/android/settings/ButtonSettings.java
@@ -121,6 +121,9 @@ public class ButtonSettings extends SettingsPreferenceFragment implements
     private ListPreference mAssistLongPressAction;
     private ListPreference mAppSwitchPressAction;
     private ListPreference mAppSwitchLongPressAction;
+    private SwitchPreference mCameraWakeScreen;
+    private SwitchPreference mCameraSleepOnRelease;
+    private SwitchPreference mCameraLaunch;
     private ListPreference mVolumeKeyCursorControl;
     private SwitchPreference mVolumeWakeScreen;
     private SwitchPreference mVolumeMusicControls;
@@ -157,6 +160,7 @@ public class ButtonSettings extends SettingsPreferenceFragment implements
         final boolean hasMenuKey = (deviceKeys & KEY_MASK_MENU) != 0;
         final boolean hasAssistKey = (deviceKeys & KEY_MASK_ASSIST) != 0;
         final boolean hasAppSwitchKey = (deviceKeys & KEY_MASK_APP_SWITCH) != 0;
+        final boolean hasCameraKey = (deviceKeys & KEY_MASK_CAMERA) != 0;
         final boolean hasVolumeKeys = (deviceKeys & KEY_MASK_VOLUME) != 0;
 
         final boolean showHomeWake = (deviceWakeKeys & KEY_MASK_HOME) != 0;
@@ -164,6 +168,7 @@ public class ButtonSettings extends SettingsPreferenceFragment implements
         final boolean showMenuWake = (deviceWakeKeys & KEY_MASK_MENU) != 0;
         final boolean showAssistWake = (deviceWakeKeys & KEY_MASK_ASSIST) != 0;
         final boolean showAppSwitchWake = (deviceWakeKeys & KEY_MASK_APP_SWITCH) != 0;
+        final boolean showCameraWake = (deviceWakeKeys & KEY_MASK_CAMERA) != 0;
         final boolean showVolumeWake = (deviceWakeKeys & KEY_MASK_VOLUME) != 0;
 
         boolean hasAnyBindableKey = false;
@@ -340,6 +345,18 @@ public class ButtonSettings extends SettingsPreferenceFragment implements
             prefScreen.removePreference(appSwitchCategory);
         }
 
+        if (hasCameraKey) {
+            if (!showCameraWake) {
+                prefScreen.removePreference(mCameraWakeScreen);
+            }
+            // Only show 'Camera sleep on release' if the device has a focus key
+            if (res.getBoolean(com.android.internal.R.bool.config_singleStageCameraKey)) {
+                prefScreen.removePreference(mCameraSleepOnRelease);
+            }
+        } else {
+            prefScreen.removePreference(mCameraLaunch);
+        }
+
         if (Utils.hasVolumeRocker(getActivity())) {
             if (!showVolumeWake) {
                 volumeCategory.removePreference(findPreference(Settings.System.VOLUME_WAKE_SCREEN));
@@ -389,6 +406,17 @@ public class ButtonSettings extends SettingsPreferenceFragment implements
         Utils.updatePreferenceToSpecificActivityFromMetaDataOrRemove(getActivity(),
                 getPreferenceScreen(), KEY_BLUETOOTH_INPUT_SETTINGS);
 
+            mCameraWakeScreen = (SwitchPreference) findPreference(Settings.System.CAMERA_WAKE_SCREEN);
+            mCameraSleepOnRelease =
+                    (SwitchPreference) findPreference(Settings.System.CAMERA_SLEEP_ON_RELEASE);
+            mCameraLaunch = (SwitchPreference) findPreference(Settings.System.CAMERA_LAUNCH);
+
+            if (mCameraWakeScreen != null) {
+                if (mCameraSleepOnRelease != null && !getResources().getBoolean(
+                        com.android.internal.R.bool.config_singleStageCameraKey)) {
+                    mCameraSleepOnRelease.setDependency(Settings.System.CAMERA_WAKE_SCREEN);
+                }
+            }
         mVolumeWakeScreen = (SwitchPreference) findPreference(Settings.System.VOLUME_WAKE_SCREEN);
         mVolumeMusicControls = (SwitchPreference) findPreference(KEY_VOLUME_MUSIC_CONTROLS);