113 lines
3.9 KiB
Java
113 lines
3.9 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin;
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import android.content.Context;
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import android.graphics.Rect;
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import android.util.AttributeSet;
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import android.view.MotionEvent;
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import android.view.View;
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import android.widget.LinearLayout;
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public final class InputView extends LinearLayout {
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private View mSuggestionStripContainer;
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private View mKeyboardView;
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private int mKeyboardTopPadding;
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private boolean mIsForwardingEvent;
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private final Rect mInputViewRect = new Rect();
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private final Rect mEventForwardingRect = new Rect();
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private final Rect mEventReceivingRect = new Rect();
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public InputView(Context context, AttributeSet attrs) {
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super(context, attrs, 0);
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}
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public void setKeyboardGeometry(int keyboardTopPadding) {
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mKeyboardTopPadding = keyboardTopPadding;
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}
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@Override
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protected void onFinishInflate() {
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mSuggestionStripContainer = findViewById(R.id.suggestions_container);
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mKeyboardView = findViewById(R.id.keyboard_view);
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}
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@Override
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public boolean dispatchTouchEvent(MotionEvent me) {
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if (mSuggestionStripContainer.getVisibility() == VISIBLE
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&& mKeyboardView.getVisibility() == VISIBLE
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&& forwardTouchEvent(me)) {
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return true;
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}
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return super.dispatchTouchEvent(me);
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}
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// The touch events that hit the top padding of keyboard should be forwarded to
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// {@link SuggestionStripView}.
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private boolean forwardTouchEvent(MotionEvent me) {
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final Rect rect = mInputViewRect;
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this.getGlobalVisibleRect(rect);
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final int x = (int)me.getX() + rect.left;
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final int y = (int)me.getY() + rect.top;
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final Rect forwardingRect = mEventForwardingRect;
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mKeyboardView.getGlobalVisibleRect(forwardingRect);
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if (!mIsForwardingEvent && !forwardingRect.contains(x, y)) {
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return false;
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}
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final int forwardingLimitY = forwardingRect.top + mKeyboardTopPadding;
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boolean sendToTarget = false;
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switch (me.getAction()) {
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case MotionEvent.ACTION_DOWN:
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if (y < forwardingLimitY) {
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// This down event and further move and up events should be forwarded to the target.
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mIsForwardingEvent = true;
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sendToTarget = true;
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}
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break;
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case MotionEvent.ACTION_MOVE:
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sendToTarget = mIsForwardingEvent;
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break;
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case MotionEvent.ACTION_UP:
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case MotionEvent.ACTION_CANCEL:
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sendToTarget = mIsForwardingEvent;
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mIsForwardingEvent = false;
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break;
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}
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if (!sendToTarget) {
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return false;
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}
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final Rect receivingRect = mEventReceivingRect;
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mSuggestionStripContainer.getGlobalVisibleRect(receivingRect);
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final int translatedX = x - receivingRect.left;
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final int translatedY;
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if (y < forwardingLimitY) {
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// The forwarded event should have coordinates that are inside of the target.
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translatedY = Math.min(y - receivingRect.top, receivingRect.height() - 1);
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} else {
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translatedY = y - receivingRect.top;
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}
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me.setLocation(translatedX, translatedY);
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mSuggestionStripContainer.dispatchTouchEvent(me);
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return true;
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}
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}
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