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.

1 files changed, 100 insertions, 0 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);