41865f4b0c
Since the UI uses multi-touch for zooming, the event is passed to webkit only when the webpage doesn't allow zooming. 1. Updated the data structure TouchEventData in WebViewCore.java to take multiple points and used it everywhere. 2. Added a passMultiTouchToWebkit() function to do what its name means. 3. Added the multi-point touch support to dumprendertree. Change-Id: Iafc1aa7b21a587ad26efd2f124b9a66316297ab8
600 lines
19 KiB
Java
600 lines
19 KiB
Java
/*
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* Copyright (C) 2010 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.dumprendertree2;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.os.SystemClock;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.webkit.WebView;
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import java.util.LinkedList;
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import java.util.List;
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/**
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* An implementation of EventSender
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*/
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public class EventSenderImpl {
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private static final String LOG_TAG = "EventSenderImpl";
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private static final int MSG_ENABLE_DOM_UI_EVENT_LOGGING = 0;
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private static final int MSG_FIRE_KEYBOARD_EVENTS_TO_ELEMENT = 1;
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private static final int MSG_LEAP_FORWARD = 2;
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private static final int MSG_KEY_DOWN = 3;
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private static final int MSG_MOUSE_DOWN = 4;
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private static final int MSG_MOUSE_UP = 5;
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private static final int MSG_MOUSE_CLICK = 6;
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private static final int MSG_MOUSE_MOVE_TO = 7;
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private static final int MSG_ADD_TOUCH_POINT = 8;
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private static final int MSG_TOUCH_START = 9;
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private static final int MSG_UPDATE_TOUCH_POINT = 10;
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private static final int MSG_TOUCH_MOVE = 11;
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private static final int MSG_CLEAR_TOUCH_POINTS = 12;
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private static final int MSG_TOUCH_CANCEL = 13;
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private static final int MSG_RELEASE_TOUCH_POINT = 14;
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private static final int MSG_TOUCH_END = 15;
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private static final int MSG_SET_TOUCH_MODIFIER = 16;
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private static final int MSG_CANCEL_TOUCH_POINT = 17;
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public static class TouchPoint {
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WebView mWebView;
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private int mId;
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private int mX;
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private int mY;
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private long mDownTime;
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private boolean mReleased = false;
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private boolean mMoved = false;
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private boolean mCancelled = false;
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public TouchPoint(WebView webView, int id, int x, int y) {
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mWebView = webView;
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mId = id;
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mX = scaleX(x);
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mY = scaleY(y);
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}
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public int getId() {
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return mId;
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}
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public int getX() {
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return mX;
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}
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public int getY() {
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return mY;
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}
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public boolean hasMoved() {
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return mMoved;
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}
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public void move(int newX, int newY) {
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mX = scaleX(newX);
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mY = scaleY(newY);
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mMoved = true;
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}
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public void resetHasMoved() {
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mMoved = false;
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}
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public long getDownTime() {
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return mDownTime;
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}
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public void setDownTime(long downTime) {
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mDownTime = downTime;
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}
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public boolean isReleased() {
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return mReleased;
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}
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public void release() {
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mReleased = true;
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}
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public boolean isCancelled() {
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return mCancelled;
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}
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public void cancel() {
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mCancelled = true;
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}
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private int scaleX(int x) {
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return (int)(x * mWebView.getScale()) - mWebView.getScrollX();
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}
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private int scaleY(int y) {
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return (int)(y * mWebView.getScale()) - mWebView.getScrollY();
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}
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}
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private List<TouchPoint> mTouchPoints;
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private int mTouchMetaState;
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private int mMouseX;
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private int mMouseY;
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private WebView mWebView;
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private Handler mEventSenderHandler = new Handler() {
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@Override
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public void handleMessage(Message msg) {
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TouchPoint touchPoint;
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Bundle bundle;
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KeyEvent event;
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switch (msg.what) {
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case MSG_ENABLE_DOM_UI_EVENT_LOGGING:
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/** TODO: implement */
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break;
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case MSG_FIRE_KEYBOARD_EVENTS_TO_ELEMENT:
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/** TODO: implement */
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break;
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case MSG_LEAP_FORWARD:
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/** TODO: implement */
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break;
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case MSG_KEY_DOWN:
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bundle = (Bundle)msg.obj;
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String character = bundle.getString("character");
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String[] withModifiers = bundle.getStringArray("withModifiers");
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if (withModifiers != null && withModifiers.length > 0) {
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for (int i = 0; i < withModifiers.length; i++) {
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executeKeyEvent(KeyEvent.ACTION_DOWN,
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modifierToKeyCode(withModifiers[i]));
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}
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}
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executeKeyEvent(KeyEvent.ACTION_DOWN,
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charToKeyCode(character.toLowerCase().toCharArray()[0]));
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break;
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/** MOUSE */
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case MSG_MOUSE_DOWN:
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/** TODO: Implement */
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break;
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case MSG_MOUSE_UP:
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/** TODO: Implement */
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break;
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case MSG_MOUSE_CLICK:
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/** TODO: Implement */
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break;
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case MSG_MOUSE_MOVE_TO:
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int x = msg.arg1;
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int y = msg.arg2;
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event = null;
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if (x > mMouseX) {
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event = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_RIGHT);
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} else if (x < mMouseX) {
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event = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_LEFT);
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}
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if (event != null) {
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mWebView.onKeyDown(event.getKeyCode(), event);
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mWebView.onKeyUp(event.getKeyCode(), event);
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}
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event = null;
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if (y > mMouseY) {
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event = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_DOWN);
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} else if (y < mMouseY) {
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event = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_UP);
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}
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if (event != null) {
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mWebView.onKeyDown(event.getKeyCode(), event);
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mWebView.onKeyUp(event.getKeyCode(), event);
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}
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mMouseX = x;
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mMouseY = y;
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break;
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/** TOUCH */
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case MSG_ADD_TOUCH_POINT:
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int numPoints = getTouchPoints().size();
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int id;
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if (numPoints == 0) {
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id = 0;
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} else {
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id = getTouchPoints().get(numPoints - 1).getId() + 1;
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}
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getTouchPoints().add(new TouchPoint(mWebView, id,
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msg.arg1, msg.arg2));
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break;
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case MSG_TOUCH_START:
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if (getTouchPoints().isEmpty()) {
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return;
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}
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for (int i = 0; i < getTouchPoints().size(); ++i) {
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getTouchPoints().get(i).setDownTime(SystemClock.uptimeMillis());
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}
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executeTouchEvent(MotionEvent.ACTION_DOWN);
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break;
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case MSG_UPDATE_TOUCH_POINT:
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bundle = (Bundle)msg.obj;
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int index = bundle.getInt("id");
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if (index >= getTouchPoints().size()) {
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Log.w(LOG_TAG + "::MSG_UPDATE_TOUCH_POINT", "TouchPoint out of bounds: "
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+ index);
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break;
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}
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getTouchPoints().get(index).move(bundle.getInt("x"), bundle.getInt("y"));
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break;
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case MSG_TOUCH_MOVE:
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/**
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* FIXME: At the moment we don't support multi-touch. Hence, we only examine
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* the first touch point. In future this method will need rewriting.
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*/
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if (getTouchPoints().isEmpty()) {
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return;
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}
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executeTouchEvent(MotionEvent.ACTION_MOVE);
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for (int i = 0; i < getTouchPoints().size(); ++i) {
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getTouchPoints().get(i).resetHasMoved();
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}
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break;
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case MSG_CANCEL_TOUCH_POINT:
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if (msg.arg1 >= getTouchPoints().size()) {
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Log.w(LOG_TAG + "::MSG_RELEASE_TOUCH_POINT", "TouchPoint out of bounds: "
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+ msg.arg1);
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break;
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}
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getTouchPoints().get(msg.arg1).cancel();
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break;
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case MSG_TOUCH_CANCEL:
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/**
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* FIXME: At the moment we don't support multi-touch. Hence, we only examine
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* the first touch point. In future this method will need rewriting.
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*/
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if (getTouchPoints().isEmpty()) {
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return;
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}
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executeTouchEvent(MotionEvent.ACTION_CANCEL);
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break;
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case MSG_RELEASE_TOUCH_POINT:
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if (msg.arg1 >= getTouchPoints().size()) {
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Log.w(LOG_TAG + "::MSG_RELEASE_TOUCH_POINT", "TouchPoint out of bounds: "
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+ msg.arg1);
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break;
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}
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getTouchPoints().get(msg.arg1).release();
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break;
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case MSG_TOUCH_END:
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/**
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* FIXME: At the moment we don't support multi-touch. Hence, we only examine
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* the first touch point. In future this method will need rewriting.
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*/
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if (getTouchPoints().isEmpty()) {
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return;
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}
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executeTouchEvent(MotionEvent.ACTION_UP);
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// remove released points.
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for (int i = getTouchPoints().size() - 1; i >= 0; --i) {
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if (getTouchPoints().get(i).isReleased()) {
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getTouchPoints().remove(i);
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}
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}
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break;
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case MSG_SET_TOUCH_MODIFIER:
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bundle = (Bundle)msg.obj;
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String modifier = bundle.getString("modifier");
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boolean enabled = bundle.getBoolean("enabled");
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int mask = 0;
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if ("alt".equals(modifier.toLowerCase())) {
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mask = KeyEvent.META_ALT_ON;
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} else if ("shift".equals(modifier.toLowerCase())) {
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mask = KeyEvent.META_SHIFT_ON;
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} else if ("ctrl".equals(modifier.toLowerCase())) {
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mask = KeyEvent.META_SYM_ON;
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}
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if (enabled) {
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mTouchMetaState |= mask;
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} else {
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mTouchMetaState &= ~mask;
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}
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break;
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case MSG_CLEAR_TOUCH_POINTS:
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getTouchPoints().clear();
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break;
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default:
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break;
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}
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}
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};
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public void reset(WebView webView) {
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mWebView = webView;
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mTouchPoints = null;
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mTouchMetaState = 0;
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mMouseX = 0;
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mMouseY = 0;
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}
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public void enableDOMUIEventLogging(int domNode) {
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Message msg = mEventSenderHandler.obtainMessage(MSG_ENABLE_DOM_UI_EVENT_LOGGING);
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msg.arg1 = domNode;
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msg.sendToTarget();
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}
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public void fireKeyboardEventsToElement(int domNode) {
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Message msg = mEventSenderHandler.obtainMessage(MSG_FIRE_KEYBOARD_EVENTS_TO_ELEMENT);
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msg.arg1 = domNode;
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msg.sendToTarget();
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}
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public void leapForward(int milliseconds) {
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Message msg = mEventSenderHandler.obtainMessage(MSG_LEAP_FORWARD);
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msg.arg1 = milliseconds;
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msg.sendToTarget();
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}
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public void keyDown(String character, String[] withModifiers) {
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Bundle bundle = new Bundle();
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bundle.putString("character", character);
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bundle.putStringArray("withModifiers", withModifiers);
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mEventSenderHandler.obtainMessage(MSG_KEY_DOWN, bundle).sendToTarget();
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}
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/** MOUSE */
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public void mouseDown() {
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mEventSenderHandler.sendEmptyMessage(MSG_MOUSE_DOWN);
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}
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public void mouseUp() {
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mEventSenderHandler.sendEmptyMessage(MSG_MOUSE_UP);
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}
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public void mouseClick() {
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mEventSenderHandler.sendEmptyMessage(MSG_MOUSE_CLICK);
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}
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public void mouseMoveTo(int x, int y) {
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mEventSenderHandler.obtainMessage(MSG_MOUSE_MOVE_TO, x, y).sendToTarget();
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}
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/** TOUCH */
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public void addTouchPoint(int x, int y) {
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mEventSenderHandler.obtainMessage(MSG_ADD_TOUCH_POINT, x, y).sendToTarget();
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}
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public void touchStart() {
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mEventSenderHandler.sendEmptyMessage(MSG_TOUCH_START);
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}
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public void updateTouchPoint(int id, int x, int y) {
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Bundle bundle = new Bundle();
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bundle.putInt("id", id);
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bundle.putInt("x", x);
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bundle.putInt("y", y);
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mEventSenderHandler.obtainMessage(MSG_UPDATE_TOUCH_POINT, bundle).sendToTarget();
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}
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public void touchMove() {
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mEventSenderHandler.sendEmptyMessage(MSG_TOUCH_MOVE);
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}
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public void cancelTouchPoint(int id) {
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Message msg = mEventSenderHandler.obtainMessage(MSG_CANCEL_TOUCH_POINT);
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msg.arg1 = id;
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msg.sendToTarget();
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}
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public void touchCancel() {
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mEventSenderHandler.sendEmptyMessage(MSG_TOUCH_CANCEL);
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}
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public void releaseTouchPoint(int id) {
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Message msg = mEventSenderHandler.obtainMessage(MSG_RELEASE_TOUCH_POINT);
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msg.arg1 = id;
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msg.sendToTarget();
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}
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public void touchEnd() {
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mEventSenderHandler.sendEmptyMessage(MSG_TOUCH_END);
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}
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public void setTouchModifier(String modifier, boolean enabled) {
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Bundle bundle = new Bundle();
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bundle.putString("modifier", modifier);
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bundle.putBoolean("enabled", enabled);
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mEventSenderHandler.obtainMessage(MSG_SET_TOUCH_MODIFIER, bundle).sendToTarget();
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}
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public void clearTouchPoints() {
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mEventSenderHandler.sendEmptyMessage(MSG_CLEAR_TOUCH_POINTS);
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}
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private List<TouchPoint> getTouchPoints() {
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if (mTouchPoints == null) {
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mTouchPoints = new LinkedList<TouchPoint>();
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}
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return mTouchPoints;
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}
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private void executeTouchEvent(int action) {
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int numPoints = getTouchPoints().size();
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int[] pointerIds = new int[numPoints];
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MotionEvent.PointerCoords[] pointerCoords = new MotionEvent.PointerCoords[numPoints];
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for (int i = 0; i < numPoints; ++i) {
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boolean isNeeded = false;
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switch(action) {
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case MotionEvent.ACTION_DOWN:
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case MotionEvent.ACTION_UP:
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isNeeded = true;
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break;
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case MotionEvent.ACTION_MOVE:
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isNeeded = getTouchPoints().get(i).hasMoved();
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break;
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case MotionEvent.ACTION_CANCEL:
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isNeeded = getTouchPoints().get(i).isCancelled();
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break;
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default:
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Log.w(LOG_TAG + "::executeTouchEvent(),", "action not supported:" + action);
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break;
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}
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numPoints = 0;
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if (isNeeded) {
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pointerIds[numPoints] = getTouchPoints().get(i).getId();
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pointerCoords[numPoints] = new MotionEvent.PointerCoords();
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pointerCoords[numPoints].x = getTouchPoints().get(i).getX();
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pointerCoords[numPoints].y = getTouchPoints().get(i).getY();
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++numPoints;
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}
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}
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if (numPoints == 0) {
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return;
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}
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MotionEvent event = MotionEvent.obtain(mTouchPoints.get(0).getDownTime(),
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SystemClock.uptimeMillis(), action,
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numPoints, pointerIds, pointerCoords,
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mTouchMetaState, 1.0f, 1.0f, 0, 0, 0, 0);
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mWebView.onTouchEvent(event);
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}
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private void executeKeyEvent(int action, int keyCode) {
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KeyEvent event = new KeyEvent(action, keyCode);
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mWebView.onKeyDown(event.getKeyCode(), event);
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}
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/**
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* Assumes lowercase chars, case needs to be handled by calling function.
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*/
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private static int charToKeyCode(char c) {
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// handle numbers
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if (c >= '0' && c <= '9') {
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int offset = c - '0';
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return KeyEvent.KEYCODE_0 + offset;
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}
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// handle characters
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if (c >= 'a' && c <= 'z') {
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int offset = c - 'a';
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return KeyEvent.KEYCODE_A + offset;
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}
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// handle all others
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switch (c) {
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case '*':
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return KeyEvent.KEYCODE_STAR;
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case '#':
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return KeyEvent.KEYCODE_POUND;
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case ',':
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return KeyEvent.KEYCODE_COMMA;
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case '.':
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return KeyEvent.KEYCODE_PERIOD;
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case '\t':
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return KeyEvent.KEYCODE_TAB;
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case ' ':
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return KeyEvent.KEYCODE_SPACE;
|
|
|
|
case '\n':
|
|
return KeyEvent.KEYCODE_ENTER;
|
|
|
|
case '\b':
|
|
case 0x7F:
|
|
return KeyEvent.KEYCODE_DEL;
|
|
|
|
case '~':
|
|
return KeyEvent.KEYCODE_GRAVE;
|
|
|
|
case '-':
|
|
return KeyEvent.KEYCODE_MINUS;
|
|
|
|
case '=':
|
|
return KeyEvent.KEYCODE_EQUALS;
|
|
|
|
case '(':
|
|
return KeyEvent.KEYCODE_LEFT_BRACKET;
|
|
|
|
case ')':
|
|
return KeyEvent.KEYCODE_RIGHT_BRACKET;
|
|
|
|
case '\\':
|
|
return KeyEvent.KEYCODE_BACKSLASH;
|
|
|
|
case ';':
|
|
return KeyEvent.KEYCODE_SEMICOLON;
|
|
|
|
case '\'':
|
|
return KeyEvent.KEYCODE_APOSTROPHE;
|
|
|
|
case '/':
|
|
return KeyEvent.KEYCODE_SLASH;
|
|
|
|
default:
|
|
return c;
|
|
}
|
|
}
|
|
|
|
private static int modifierToKeyCode(String modifier) {
|
|
if (modifier.equals("ctrlKey")) {
|
|
return KeyEvent.KEYCODE_ALT_LEFT;
|
|
} else if (modifier.equals("shiftKey")) {
|
|
return KeyEvent.KEYCODE_SHIFT_LEFT;
|
|
} else if (modifier.equals("altKey")) {
|
|
return KeyEvent.KEYCODE_SYM;
|
|
}
|
|
|
|
return KeyEvent.KEYCODE_UNKNOWN;
|
|
}
|
|
} |