Code drop from //branches/cupcake/...@124589

1 files changed, 98 insertions, 0 deletions

diff --git a/core/java/android/view/inputmethod/BaseInputConnection.java b/core/java/android/view/inputmethod/BaseInputConnection.java
new file mode 100644
index 0000000..4416ee5
--- /dev/null
+++ b/core/java/android/view/inputmethod/BaseInputConnection.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * 
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ * 
+ * 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 android.view.inputmethod;
+
+import android.content.Context;
+import android.os.Handler;
+import android.os.Message;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.ViewRoot;
+
+/**
+ * Base class for implementors of the InputConnection interface, taking care
+ * of implementing common system-oriented parts of the functionality.
+ */
+public abstract class BaseInputConnection implements InputConnection {
+    final InputMethodManager mIMM;
+    final Handler mH;
+    final View mTargetView;
+    
+    BaseInputConnection(InputMethodManager mgr) {
+        mIMM = mgr;
+        mTargetView = null;
+        mH = null;
+    }
+    
+    public BaseInputConnection(View targetView) {
+        mIMM = (InputMethodManager)targetView.getContext().getSystemService(
+                Context.INPUT_METHOD_SERVICE);
+        mH = targetView.getHandler();
+        mTargetView = targetView;
+    }
+    
+    /**
+     * Provides standard implementation for sending a key event to the window
+     * attached to the input connection's view.
+     */
+    public boolean sendKeyEvent(KeyEvent event) {
+        synchronized (mIMM.mH) {
+            Handler h = mH;
+            if (h == null) {
+                if (mIMM.mServedView != null) {
+                    h = mIMM.mServedView.getHandler();
+                }
+            }
+            if (h != null && mTargetView != null) {
+                h.post(new DispatchKey(event, mTargetView.getRootView()));
+            }
+        }
+        return false;
+    }
+    
+    /**
+     * Provides standard implementation for hiding the status icon associated
+     * with the current input method.
+     */
+    public boolean hideStatusIcon() {
+        mIMM.updateStatusIcon(0, null);
+        return true;
+    }
+    
+    /**
+     * Provides standard implementation for showing the status icon associated
+     * with the current input method.
+     */
+    public boolean showStatusIcon(String packageName, int resId) {
+        mIMM.updateStatusIcon(resId, packageName);
+        return true;
+    }
+    
+    static class DispatchKey implements Runnable {
+        KeyEvent mEvent;
+        View mView;
+        
+        DispatchKey(KeyEvent event, View v) {
+            mEvent = event;
+            mView = v;
+        }
+        
+        public void run() {
+            mView.dispatchKeyEvent(mEvent);
+        }
+    }
+}
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