1 files changed, 90 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/build/RsSourceChangeHandler.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/build/RsSourceChangeHandler.java
new file mode 100644
index 000000000..715895a0c
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/build/RsSourceChangeHandler.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Eclipse Public License, Version 1.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.eclipse.org/org/documents/epl-v10.php
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ide.eclipse.adt.internal.build;
+
+import com.android.SdkConstants;
+import com.android.annotations.NonNull;
+import com.android.ide.eclipse.adt.AdtPlugin;
+import com.android.sdklib.build.RenderScriptChecker;
+
+import org.eclipse.core.resources.IFile;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Set;
+
+public class RsSourceChangeHandler implements SourceChangeHandler {
+
+    private final RenderScriptChecker mChecker;
+    private boolean mIsCheckerLoaded = false;
+
+    private boolean mMustCompile = false;
+
+    public RsSourceChangeHandler(@NonNull RenderScriptChecker checker) {
+        mChecker = checker;
+    }
+
+    @Override
+    public boolean handleGeneratedFile(IFile file, int kind) {
+        if (mMustCompile) {
+            return false;
+        }
+
+        if (!mIsCheckerLoaded) {
+            try {
+                mChecker.loadDependencies();
+            } catch (IOException e) {
+                // failed to load the dependency files, force a compilation, log the error.
+                AdtPlugin.log(e, "Failed to read dependency files");
+                mMustCompile = true;
+                return false;
+            }
+        }
+
+        Set<File> oldOutputs = mChecker.getOldOutputs();
+        // mustCompile is always false here.
+        mMustCompile = oldOutputs.contains(file.getLocation().toFile());
+        return mMustCompile;
+    }
+
+    @Override
+    public void handleSourceFile(IFile file, int kind) {
+        if (mMustCompile) {
+            return;
+        }
+
+        String ext = file.getFileExtension();
+        if (SdkConstants.EXT_RS.equals(ext) ||
+                SdkConstants.EXT_FS.equals(ext) ||
+                SdkConstants.EXT_RSH.equals(ext)) {
+            mMustCompile = true;
+        }
+    }
+
+    public boolean mustCompile() {
+        return mMustCompile;
+    }
+
+    @NonNull
+    public RenderScriptChecker getChecker() {
+        return mChecker;
+    }
+
+    public void prepareFullBuild() {
+        mMustCompile = true;
+    }
+}