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app/src/main/java/com/hippo/ehviewer/widget/SearchEditText.java

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+/*
+ * Copyright (C) 2015 Hippo Seven
+ *
+ * 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 com.hippo.ehviewer.widget;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.util.AttributeSet;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.widget.EditText;
+
+public class SearchEditText extends EditText {
+
+    private SearchEditTextListener mListener;
+
+    public SearchEditText(Context context) {
+        super(context);
+    }
+
+    public SearchEditText(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public SearchEditText(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public void setSearchEditTextListener(SearchEditTextListener listener) {
+        mListener = listener;
+    }
+
+    @Override
+    public boolean onKeyPreIme(int keyCode, @NonNull KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            // special case for the back key, we do not even try to send it
+            // to the drop down list but instead, consume it immediately
+            if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) {
+                KeyEvent.DispatcherState state = getKeyDispatcherState();
+                if (state != null) {
+                    state.startTracking(event, this);
+                }
+                return true;
+            } else if (event.getAction() == KeyEvent.ACTION_UP) {
+                KeyEvent.DispatcherState state = getKeyDispatcherState();
+                if (state != null) {
+                    state.handleUpEvent(event);
+                }
+                if (event.isTracking() && !event.isCanceled()) {
+                    // TODO stopSelectionActionMode
+                    if (mListener != null) {
+                        mListener.onBackPressed();
+                        return true;
+                    }
+                }
+            }
+        }
+        return super.onKeyPreIme(keyCode, event);
+    }
+
+    @Override
+    public boolean onTouchEvent(@NonNull MotionEvent event) {
+        if (event.getAction() == MotionEvent.ACTION_UP && mListener != null) {
+            mListener.onClick();
+        }
+        return super.onTouchEvent(event);
+    }
+
+    public interface SearchEditTextListener {
+        void onClick();
+        void onBackPressed();
+    }
+}