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authorJean Chalard <jchalard@google.com>2014-05-08 14:53:56 +0900
committerJean Chalard <jchalard@google.com>2014-05-12 15:58:51 +0900
commitbe99616afa2243fe48dc406d0a3f442cb05453b4 (patch)
tree07e88e670553253aa924da1bfbae3c0d4ae2277c /java/src/com/android/inputmethod/event/CombinerChain.java
parentc41d261b7e1e626aaa4e333c9c4cc73ec13cb68a (diff)
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Create the path for specifying combining rules in the subtype
Also add the skeleton of the combining rules for Myanmar reordering as a pilot. Bug: 13945569 Change-Id: Iabeb6838f45f1efff482143595ce5b48543e0c43
Diffstat (limited to 'java/src/com/android/inputmethod/event/CombinerChain.java')
-rw-r--r--java/src/com/android/inputmethod/event/CombinerChain.java36
1 files changed, 36 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/event/CombinerChain.java b/java/src/com/android/inputmethod/event/CombinerChain.java
index 8b59dc52a..990f7deea 100644
--- a/java/src/com/android/inputmethod/event/CombinerChain.java
+++ b/java/src/com/android/inputmethod/event/CombinerChain.java
@@ -23,6 +23,7 @@ import com.android.inputmethod.latin.Constants;
import com.android.inputmethod.latin.utils.CollectionUtils;
import java.util.ArrayList;
+import java.util.HashMap;
/**
* This class implements the logic chain between receiving events and generating code points.
@@ -43,6 +44,13 @@ public class CombinerChain {
private SpannableStringBuilder mStateFeedback;
private final ArrayList<Combiner> mCombiners;
+ private static final HashMap<String, Class> IMPLEMENTED_COMBINERS
+ = new HashMap<String, Class>();
+ static {
+ IMPLEMENTED_COMBINERS.put("MyanmarReordering", MyanmarReordering.class);
+ }
+ private static final String COMBINER_SPEC_SEPARATOR = ";";
+
/**
* Create an combiner chain.
*
@@ -56,6 +64,9 @@ public class CombinerChain {
mCombiners = CollectionUtils.newArrayList();
// The dead key combiner is always active, and always first
mCombiners.add(new DeadKeyCombiner());
+ for (final Combiner combiner : combinerList) {
+ mCombiners.add(combiner);
+ }
mCombinedText = new StringBuilder();
mStateFeedback = new SpannableStringBuilder();
}
@@ -114,4 +125,29 @@ public class CombinerChain {
final SpannableStringBuilder s = new SpannableStringBuilder(mCombinedText);
return s.append(mStateFeedback);
}
+
+ public static Combiner[] createCombiners(final String spec) {
+ if (TextUtils.isEmpty(spec)) {
+ return new Combiner[0];
+ }
+ final String[] combinerDescriptors = spec.split(COMBINER_SPEC_SEPARATOR);
+ final Combiner[] combiners = new Combiner[combinerDescriptors.length];
+ int i = 0;
+ for (final String combinerDescriptor : combinerDescriptors) {
+ final Class combinerClass = IMPLEMENTED_COMBINERS.get(combinerDescriptor);
+ if (null == combinerClass) {
+ throw new RuntimeException("Unknown combiner descriptor: " + combinerDescriptor);
+ }
+ try {
+ combiners[i++] = (Combiner)combinerClass.newInstance();
+ } catch (InstantiationException e) {
+ throw new RuntimeException("Unable to instantiate combiner: " + combinerDescriptor,
+ e);
+ } catch (IllegalAccessException e) {
+ throw new RuntimeException("Unable to instantiate combiner: " + combinerDescriptor,
+ e);
+ }
+ }
+ return combiners;
+ }
}