in resources/src/main/java/org/robolectric/res/android/AttributeResolution9.java [237:442]
public static void ApplyStyle(Theme theme, ResXMLParser xml_parser, int def_style_attr,
int def_style_resid, int[] attrs, int attrs_length,
int[] out_values, int[] out_indices) {
if (kDebugStyles) {
ALOGI("APPLY STYLE: theme=%s defStyleAttr=0x%x defStyleRes=0x%x xml=%s",
theme, def_style_attr, def_style_resid, xml_parser);
}
CppAssetManager2 assetmanager = theme.GetAssetManager();
final Ref<ResTable_config> config = new Ref<>(new ResTable_config());
final Ref<Res_value> value = new Ref<>(new Res_value());
int indices_idx = 0;
// Load default style from attribute, if specified...
final Ref<Integer> def_style_flags = new Ref<>(0);
if (def_style_attr != 0) {
if (theme.GetAttribute(def_style_attr, value, def_style_flags).intValue() != kInvalidCookie) {
if (value.get().dataType == DataType.REFERENCE.code()) {
def_style_resid = value.get().data;
}
}
}
// Retrieve the style resource ID associated with the current XML tag's style attribute.
int style_resid = 0;
final Ref<Integer> style_flags = new Ref<>(0);
if (xml_parser != null) {
int idx = xml_parser.indexOfStyle();
if (idx >= 0 && xml_parser.getAttributeValue(idx, value) >= 0) {
if (value.get().dataType == DataType.ATTRIBUTE.code()) {
// Resolve the attribute with out theme.
if (theme.GetAttribute(value.get().data, value, style_flags).intValue() == kInvalidCookie) {
value.set(value.get().withType(DataType.NULL.code()));
}
}
if (value.get().dataType == DataType.REFERENCE.code()) {
style_resid = value.get().data;
}
}
}
// Retrieve the default style bag, if requested.
ResolvedBag default_style_bag = null;
if (def_style_resid != 0) {
default_style_bag = assetmanager.GetBag(def_style_resid);
if (default_style_bag != null) {
def_style_flags.set(def_style_flags.get() | default_style_bag.type_spec_flags);
}
}
BagAttributeFinder def_style_attr_finder = new BagAttributeFinder(default_style_bag);
// Retrieve the style class bag, if requested.
ResolvedBag xml_style_bag = null;
if (style_resid != 0) {
xml_style_bag = assetmanager.GetBag(style_resid);
if (xml_style_bag != null) {
style_flags.set(style_flags.get() | xml_style_bag.type_spec_flags);
}
}
BagAttributeFinder xml_style_attr_finder = new BagAttributeFinder(xml_style_bag);
// Retrieve the XML attributes, if requested.
XmlAttributeFinder xml_attr_finder = new XmlAttributeFinder(xml_parser);
// Now iterate through all of the attributes that the client has requested,
// filling in each with whatever data we can find.
for (int ii = 0; ii < attrs_length; ii++) {
final int cur_ident = attrs[ii];
if (kDebugStyles) {
ALOGI("RETRIEVING ATTR 0x%08x...", cur_ident);
}
ApkAssetsCookie cookie = K_INVALID_COOKIE;
final Ref<Integer> type_set_flags = new Ref<>(0);
value.set(Res_value.NULL_VALUE);
config.get().density = 0;
// Try to find a value for this attribute... we prioritize values
// coming from, first XML attributes, then XML style, then default
// style, and finally the theme.
// Walk through the xml attributes looking for the requested attribute.
int xml_attr_idx = xml_attr_finder.Find(cur_ident);
if (xml_attr_idx != -1) {
// We found the attribute we were looking for.
xml_parser.getAttributeValue(xml_attr_idx, value);
type_set_flags.set(style_flags.get());
if (kDebugStyles) {
ALOGI("-> From XML: type=0x%x, data=0x%08x", value.get().dataType, value.get().data);
}
}
if (value.get().dataType == DataType.NULL.code() && value.get().data != Res_value.DATA_NULL_EMPTY) {
// Walk through the style class values looking for the requested attribute.
Entry entry = xml_style_attr_finder.Find(cur_ident);
if (entry != null) {
// We found the attribute we were looking for.
cookie = entry.cookie;
type_set_flags.set(style_flags.get());
value.set(entry.value);
if (kDebugStyles) {
ALOGI("-> From style: type=0x%x, data=0x%08x", value.get().dataType, value.get().data);
}
}
}
if (value.get().dataType == DataType.NULL.code() && value.get().data != Res_value.DATA_NULL_EMPTY) {
// Walk through the default style values looking for the requested attribute.
Entry entry = def_style_attr_finder.Find(cur_ident);
if (entry != null) {
// We found the attribute we were looking for.
cookie = entry.cookie;
type_set_flags.set(def_style_flags.get());
value.set(entry.value);
if (kDebugStyles) {
ALOGI("-> From def style: type=0x%x, data=0x%08x", value.get().dataType, value.get().data);
}
}
}
final Ref<Integer> resid = new Ref<>(0);
if (value.get().dataType != DataType.NULL.code()) {
// Take care of resolving the found resource to its final value.
ApkAssetsCookie new_cookie =
theme.ResolveAttributeReference(cookie, value, config, type_set_flags, resid);
if (new_cookie.intValue() != kInvalidCookie) {
cookie = new_cookie;
}
if (kDebugStyles) {
ALOGI("-> Resolved attr: type=0x%x, data=0x%08x", value.get().dataType, value.get().data);
}
} else if (value.get().data != Res_value.DATA_NULL_EMPTY) {
// If we still don't have a value for this attribute, try to find it in the theme!
ApkAssetsCookie new_cookie = theme.GetAttribute(cur_ident, value, type_set_flags);
if (new_cookie.intValue() != kInvalidCookie) {
if (kDebugStyles) {
ALOGI("-> From theme: type=0x%x, data=0x%08x", value.get().dataType, value.get().data);
}
new_cookie =
assetmanager.ResolveReference(new_cookie, value, config, type_set_flags, resid);
if (new_cookie.intValue() != kInvalidCookie) {
cookie = new_cookie;
}
if (kDebugStyles) {
ALOGI("-> Resolved theme: type=0x%x, data=0x%08x", value.get().dataType, value.get().data);
}
}
}
// Deal with the special @null value -- it turns back to TYPE_NULL.
if (value.get().dataType == DataType.REFERENCE.code() && value.get().data == 0) {
if (kDebugStyles) {
ALOGI(". Setting to @null!");
}
value.set(Res_value.NULL_VALUE);
cookie = K_INVALID_COOKIE;
}
if (kDebugStyles) {
ALOGI("Attribute 0x%08x: type=0x%x, data=0x%08x", cur_ident, value.get().dataType, value.get().data);
}
// Write the final value back to Java.
int destIndex = ii * STYLE_NUM_ENTRIES;
Res_value res_value = value.get();
out_values[destIndex + STYLE_TYPE] = res_value.dataType;
out_values[destIndex + STYLE_DATA] = res_value.data;
out_values[destIndex + STYLE_ASSET_COOKIE] = ApkAssetsCookieToJavaCookie(cookie);
out_values[destIndex + STYLE_RESOURCE_ID] = resid.get();
out_values[destIndex + STYLE_CHANGING_CONFIGURATIONS] = type_set_flags.get();
out_values[destIndex + STYLE_DENSITY] = config.get().density;
if (res_value.dataType != DataType.NULL.code() || res_value.data == Res_value.DATA_NULL_EMPTY) {
indices_idx++;
// out_indices must NOT be nullptr.
out_indices[indices_idx] = ii;
}
// Robolectric-custom:
// if (false && res_value.dataType == DataType.ATTRIBUTE.code()) {
// final Ref<ResourceName> attrName = new Ref<>(null);
// final Ref<ResourceName> attrRefName = new Ref<>(null);
// boolean gotName = assetmanager.GetResourceName(cur_ident, attrName);
// boolean gotRefName = assetmanager.GetResourceName(res_value.data, attrRefName);
// Logger.warn(
// "Failed to resolve attribute lookup: %s=\"?%s\"; theme: %s",
// gotName ? attrName.get() : "unknown", gotRefName ? attrRefName.get() : "unknown",
// theme);
// }
// out_values += STYLE_NUM_ENTRIES;
}
// out_indices must NOT be nullptr.
out_indices[0] = indices_idx;
}