Introduce special UI modes for night and car usage.

The device mode is now called ui mode. Furthermore is the order of
precedence for the resources now in such a way that the ui mode needs
to be specified after the orientation and before the density.

The ui mode can be set, like it is done for the locale, as follows:

IActivityManager am = ActivityManagerNative.getDefault();
Configuration config = am.getConfiguration();
config.uiMode = Configuration.UI_MODE_TYPE_CAR | Configuration.UI_MODE_NIGHT_ANY;
am.updateConfiguration(config);

To allow users to disable the car mode and set the night mode the IUiModeManager
interface is used.

The automatic night mode switching will be added in a separate change.

5 files changed, 120 insertions, 5 deletions

diff --git a/tools/aapt/AaptAssets.cpp b/tools/aapt/AaptAssets.cpp
index c346b90..663a33a 100644
--- a/tools/aapt/AaptAssets.cpp
+++ b/tools/aapt/AaptAssets.cpp
@@ -163,6 +163,20 @@ AaptGroupEntry::parseNamePart(const String8& part, int* axis, uint32_t* value)
         return 0;
     }
 
+    // ui mode type
+    if (getUiModeTypeName(part.string(), &config)) {
+        *axis = AXIS_UIMODETYPE;
+        *value = (config.uiMode&ResTable_config::MASK_UI_MODE_TYPE);
+        return 0;
+    }
+
+    // ui mode night
+    if (getUiModeNightName(part.string(), &config)) {
+        *axis = AXIS_UIMODENIGHT;
+        *value = (config.uiMode&ResTable_config::MASK_UI_MODE_NIGHT);
+        return 0;
+    }
+
     // density
     if (getDensityName(part.string(), &config)) {
         *axis = AXIS_DENSITY;
@@ -229,6 +243,7 @@ AaptGroupEntry::initFromDirName(const char* dir, String8* resType)
 
     String8 mcc, mnc, loc, layoutsize, layoutlong, orient, den;
     String8 touch, key, keysHidden, nav, navHidden, size, vers;
+    String8 uiModeType, uiModeNight;
 
     const char *p = dir;
     const char *q;
@@ -352,6 +367,32 @@ AaptGroupEntry::initFromDirName(const char* dir, String8* resType)
         //printf("not orientation: %s\n", part.string());
     }
 
+    // ui mode type
+    if (getUiModeTypeName(part.string())) {
+        uiModeType = part;
+
+        index++;
+        if (index == N) {
+            goto success;
+        }
+        part = parts[index];
+    } else {
+        //printf("not ui mode type: %s\n", part.string());
+    }
+
+    // ui mode night
+    if (getUiModeNightName(part.string())) {
+        uiModeNight = part;
+
+        index++;
+        if (index == N) {
+            goto success;
+        }
+        part = parts[index];
+    } else {
+        //printf("not ui mode night: %s\n", part.string());
+    }
+
     // density
     if (getDensityName(part.string())) {
         den = part;
@@ -463,6 +504,8 @@ success:
     this->screenLayoutSize = layoutsize;
     this->screenLayoutLong = layoutlong;
     this->orientation = orient;
+    this->uiModeType = uiModeType;
+    this->uiModeNight = uiModeNight;
     this->density = den;
     this->touchscreen = touch;
     this->keysHidden = keysHidden;
@@ -493,6 +536,10 @@ AaptGroupEntry::toString() const
     s += ",";
     s += this->orientation;
     s += ",";
+    s += uiModeType;
+    s += ",";
+    s += uiModeNight;
+    s += ",";
     s += density;
     s += ",";
     s += touchscreen;
@@ -539,6 +586,14 @@ AaptGroupEntry::toDirName(const String8& resType) const
         s += "-";
         s += orientation;
     }
+    if (this->uiModeType != "") {
+        s += "-";
+        s += uiModeType;
+    }
+    if (this->uiModeNight != "") {
+        s += "-";
+        s += uiModeNight;
+    }
     if (this->density != "") {
         s += "-";
         s += density;
@@ -759,6 +814,47 @@ bool AaptGroupEntry::getOrientationName(const char* name,
     return false;
 }
 
+bool AaptGroupEntry::getUiModeTypeName(const char* name,
+                                       ResTable_config* out)
+{
+    if (strcmp(name, kWildcardName) == 0) {
+        if (out) out->uiMode =
+                (out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
+                | ResTable_config::UI_MODE_TYPE_NORMAL;
+        return true;
+    } else if (strcmp(name, "car") == 0) {
+      if (out) out->uiMode =
+              (out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
+              | ResTable_config::UI_MODE_TYPE_CAR;
+        return true;
+    }
+
+    return false;
+}
+
+bool AaptGroupEntry::getUiModeNightName(const char* name,
+                                          ResTable_config* out)
+{
+    if (strcmp(name, kWildcardName) == 0) {
+        if (out) out->uiMode =
+                (out->uiMode&~ResTable_config::MASK_UI_MODE_NIGHT)
+                | ResTable_config::UI_MODE_NIGHT_ANY;
+        return true;
+    } else if (strcmp(name, "night") == 0) {
+        if (out) out->uiMode =
+                (out->uiMode&~ResTable_config::MASK_UI_MODE_NIGHT)
+                | ResTable_config::UI_MODE_NIGHT_YES;
+        return true;
+    } else if (strcmp(name, "notnight") == 0) {
+      if (out) out->uiMode =
+              (out->uiMode&~ResTable_config::MASK_UI_MODE_NIGHT)
+              | ResTable_config::UI_MODE_NIGHT_NO;
+        return true;
+    }
+
+    return false;
+}
+
 bool AaptGroupEntry::getDensityName(const char* name,
                                     ResTable_config* out)
 {
@@ -1004,6 +1100,8 @@ int AaptGroupEntry::compare(const AaptGroupEntry& o) const
     if (v == 0) v = screenLayoutSize.compare(o.screenLayoutSize);
     if (v == 0) v = screenLayoutLong.compare(o.screenLayoutLong);
     if (v == 0) v = orientation.compare(o.orientation);
+    if (v == 0) v = uiModeType.compare(o.uiModeType);
+    if (v == 0) v = uiModeNight.compare(o.uiModeNight);
     if (v == 0) v = density.compare(o.density);
     if (v == 0) v = touchscreen.compare(o.touchscreen);
     if (v == 0) v = keysHidden.compare(o.keysHidden);
@@ -1025,6 +1123,8 @@ ResTable_config AaptGroupEntry::toParams() const
     getScreenLayoutSizeName(screenLayoutSize.string(), &params);
     getScreenLayoutLongName(screenLayoutLong.string(), &params);
     getOrientationName(orientation.string(), &params);
+    getUiModeTypeName(uiModeType.string(), &params);
+    getUiModeNightName(uiModeNight.string(), &params);
     getDensityName(density.string(), &params);
     getTouchscreenName(touchscreen.string(), &params);
     getKeysHiddenName(keysHidden.string(), &params);
diff --git a/tools/aapt/AaptAssets.h b/tools/aapt/AaptAssets.h
index 26500a3..9a848e4 100644
--- a/tools/aapt/AaptAssets.h
+++ b/tools/aapt/AaptAssets.h
@@ -33,6 +33,8 @@ enum {
     AXIS_SCREENLAYOUTSIZE,
     AXIS_SCREENLAYOUTLONG,
     AXIS_ORIENTATION,
+    AXIS_UIMODETYPE,
+    AXIS_UIMODENIGHT,
     AXIS_DENSITY,
     AXIS_TOUCHSCREEN,
     AXIS_KEYSHIDDEN,
@@ -61,6 +63,8 @@ public:
     String8 screenLayoutSize;
     String8 screenLayoutLong;
     String8 orientation;
+    String8 uiModeType;
+    String8 uiModeNight;
     String8 density;
     String8 touchscreen;
     String8 keysHidden;
@@ -80,6 +84,8 @@ public:
     static bool getScreenLayoutSizeName(const char* name, ResTable_config* out = NULL);
     static bool getScreenLayoutLongName(const char* name, ResTable_config* out = NULL);
     static bool getOrientationName(const char* name, ResTable_config* out = NULL);
+    static bool getUiModeTypeName(const char* name, ResTable_config* out = NULL);
+    static bool getUiModeNightName(const char* name, ResTable_config* out = NULL);
     static bool getDensityName(const char* name, ResTable_config* out = NULL);
     static bool getTouchscreenName(const char* name, ResTable_config* out = NULL);
     static bool getKeysHiddenName(const char* name, ResTable_config* out = NULL);
diff --git a/tools/aapt/Resource.cpp b/tools/aapt/Resource.cpp
index 0d2ea60..88c5441 100644
--- a/tools/aapt/Resource.cpp
+++ b/tools/aapt/Resource.cpp
@@ -101,13 +101,13 @@ public:
             String8 leaf(group->getLeaf());
             mLeafName = String8(leaf);
             mParams = file->getGroupEntry().toParams();
-            NOISY(printf("Dir %s: mcc=%d mnc=%d lang=%c%c cnt=%c%c orient=%d density=%d touch=%d key=%d inp=%d nav=%d\n",
+            NOISY(printf("Dir %s: mcc=%d mnc=%d lang=%c%c cnt=%c%c orient=%d ui=%d density=%d touch=%d key=%d inp=%d nav=%d\n",
                    group->getPath().string(), mParams.mcc, mParams.mnc,
                    mParams.language[0] ? mParams.language[0] : '-',
                    mParams.language[1] ? mParams.language[1] : '-',
                    mParams.country[0] ? mParams.country[0] : '-',
                    mParams.country[1] ? mParams.country[1] : '-',
-                   mParams.orientation,
+                   mParams.orientation, mParams.uiMode,
                    mParams.density, mParams.touchscreen, mParams.keyboard,
                    mParams.inputFlags, mParams.navigation));
             mPath = "res";
diff --git a/tools/aapt/ResourceTable.cpp b/tools/aapt/ResourceTable.cpp
index b682702..a389bfb 100644
--- a/tools/aapt/ResourceTable.cpp
+++ b/tools/aapt/ResourceTable.cpp
@@ -2472,6 +2472,12 @@ ResourceFilter::match(const ResTable_config& config)
     if (!match(AXIS_ORIENTATION, config.orientation)) {
         return false;
     }
+    if (!match(AXIS_UIMODETYPE, (config.uiMode&ResTable_config::MASK_UI_MODE_TYPE))) {
+        return false;
+    }
+    if (!match(AXIS_UIMODENIGHT, (config.uiMode&ResTable_config::MASK_UI_MODE_NIGHT))) {
+        return false;
+    }
     if (!match(AXIS_DENSITY, config.density)) {
         return false;
     }
@@ -2674,7 +2680,7 @@ status_t ResourceTable::flatten(Bundle* bundle, const sp<AaptFile>& dest)
                 ConfigDescription config = t->getUniqueConfigs().itemAt(ci);
 
                 NOISY(printf("Writing config %d config: imsi:%d/%d lang:%c%c cnt:%c%c "
-                     "orien:%d touch:%d density:%d key:%d inp:%d nav:%d w:%d h:%d\n",
+                     "orien:%d ui:%d touch:%d density:%d key:%d inp:%d nav:%d w:%d h:%d\n",
                       ti+1,
                       config.mcc, config.mnc,
                       config.language[0] ? config.language[0] : '-',
@@ -2682,6 +2688,7 @@ status_t ResourceTable::flatten(Bundle* bundle, const sp<AaptFile>& dest)
                       config.country[0] ? config.country[0] : '-',
                       config.country[1] ? config.country[1] : '-',
                       config.orientation,
+                      config.uiMode,
                       config.touchscreen,
                       config.density,
                       config.keyboard,
@@ -2711,7 +2718,7 @@ status_t ResourceTable::flatten(Bundle* bundle, const sp<AaptFile>& dest)
                 tHeader->entriesStart = htodl(typeSize);
                 tHeader->config = config;
                 NOISY(printf("Writing type %d config: imsi:%d/%d lang:%c%c cnt:%c%c "
-                     "orien:%d touch:%d density:%d key:%d inp:%d nav:%d w:%d h:%d\n",
+                     "orien:%d ui:%d touch:%d density:%d key:%d inp:%d nav:%d w:%d h:%d\n",
                       ti+1,
                       tHeader->config.mcc, tHeader->config.mnc,
                       tHeader->config.language[0] ? tHeader->config.language[0] : '-',
@@ -2719,6 +2726,7 @@ status_t ResourceTable::flatten(Bundle* bundle, const sp<AaptFile>& dest)
                       tHeader->config.country[0] ? tHeader->config.country[0] : '-',
                       tHeader->config.country[1] ? tHeader->config.country[1] : '-',
                       tHeader->config.orientation,
+                      tHeader->config.uiMode,
                       tHeader->config.touchscreen,
                       tHeader->config.density,
                       tHeader->config.keyboard,
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeAssetManager.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeAssetManager.java
index 6c1b5b3..43ff424 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeAssetManager.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeAssetManager.java
@@ -59,7 +59,7 @@ public class BridgeAssetManager extends AssetManager {
     public void setConfiguration(int mcc, int mnc, String locale,
             int orientation, int touchscreen, int density, int keyboard,
             int keyboardHidden, int navigation, int screenWidth, int screenHeight,
-            int screenLayout, int version)  {
+            int screenLayout, int uiMode, int version)  {
         
         Configuration c = new Configuration();
         c.mcc = mcc;
@@ -71,5 +71,6 @@ public class BridgeAssetManager extends AssetManager {
         c.navigation = navigation;
         c.orientation = orientation;
         c.screenLayout = screenLayout;
+        c.uiMode = uiMode;
     }
 }