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GeckoEvent.java
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GeckoEvent.java
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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import org.mozilla.gecko.gfx.DisplayPortMetrics;
import org.mozilla.gecko.gfx.ImmutableViewportMetrics;
import android.content.res.Resources;
import android.graphics.Point;
import android.graphics.PointF;
import android.graphics.Rect;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorManager;
import android.location.Address;
import android.location.Location;
import android.os.Build;
import android.os.SystemClock;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import java.nio.ByteBuffer;
/* We're not allowed to hold on to most events given to us
* so we save the parts of the events we want to use in GeckoEvent.
* Fields have different meanings depending on the event type.
*/
/* This class is referenced by Robocop via reflection; use care when
* modifying the signature.
*/
public class GeckoEvent {
private static final String LOGTAG = "GeckoEvent";
// Make sure to keep these values in sync with the enum in
// AndroidGeckoEvent in widget/android/AndroidJavaWrapper.h
private static final int NATIVE_POKE = 0;
private static final int KEY_EVENT = 1;
private static final int MOTION_EVENT = 2;
private static final int SENSOR_EVENT = 3;
private static final int LOCATION_EVENT = 5;
private static final int IME_EVENT = 6;
private static final int DRAW = 7;
private static final int SIZE_CHANGED = 8;
private static final int APP_BACKGROUNDING = 9;
private static final int APP_FOREGROUNDING = 10;
private static final int LOAD_URI = 12;
private static final int NOOP = 15;
private static final int BROADCAST = 19;
private static final int VIEWPORT = 20;
private static final int VISITED = 21;
private static final int NETWORK_CHANGED = 22;
private static final int THUMBNAIL = 25;
private static final int SCREENORIENTATION_CHANGED = 27;
private static final int COMPOSITOR_CREATE = 28;
private static final int COMPOSITOR_PAUSE = 29;
private static final int COMPOSITOR_RESUME = 30;
private static final int NATIVE_GESTURE_EVENT = 31;
private static final int IME_KEY_EVENT = 32;
/**
* These DOM_KEY_LOCATION constants mirror the DOM KeyboardEvent's constants.
* @see https://developer.mozilla.org/en-US/docs/DOM/KeyboardEvent#Key_location_constants
*/
private static final int DOM_KEY_LOCATION_STANDARD = 0;
private static final int DOM_KEY_LOCATION_LEFT = 1;
private static final int DOM_KEY_LOCATION_RIGHT = 2;
private static final int DOM_KEY_LOCATION_NUMPAD = 3;
private static final int DOM_KEY_LOCATION_MOBILE = 4;
private static final int DOM_KEY_LOCATION_JOYSTICK = 5;
public static final int IME_SYNCHRONIZE = 0;
public static final int IME_REPLACE_TEXT = 1;
public static final int IME_SET_SELECTION = 2;
public static final int IME_ADD_COMPOSITION_RANGE = 3;
public static final int IME_UPDATE_COMPOSITION = 4;
public static final int IME_REMOVE_COMPOSITION = 5;
public static final int IME_ACKNOWLEDGE_FOCUS = 6;
public static final int IME_RANGE_CARETPOSITION = 1;
public static final int IME_RANGE_RAWINPUT = 2;
public static final int IME_RANGE_SELECTEDRAWTEXT = 3;
public static final int IME_RANGE_CONVERTEDTEXT = 4;
public static final int IME_RANGE_SELECTEDCONVERTEDTEXT = 5;
public static final int IME_RANGE_LINE_NONE = 0;
public static final int IME_RANGE_LINE_DOTTED = 1;
public static final int IME_RANGE_LINE_DASHED = 2;
public static final int IME_RANGE_LINE_SOLID = 3;
public static final int IME_RANGE_LINE_DOUBLE = 4;
public static final int IME_RANGE_LINE_WAVY = 5;
public static final int IME_RANGE_UNDERLINE = 1;
public static final int IME_RANGE_FORECOLOR = 2;
public static final int IME_RANGE_BACKCOLOR = 4;
public static final int IME_RANGE_LINECOLOR = 8;
public static final int ACTION_MAGNIFY_START = 11;
public static final int ACTION_MAGNIFY = 12;
public static final int ACTION_MAGNIFY_END = 13;
private final int mType;
private int mAction;
private boolean mAckNeeded;
private long mTime;
private Point[] mPoints;
private int[] mPointIndicies;
private int mPointerIndex; // index of the point that has changed
private float[] mOrientations;
private float[] mPressures;
private Point[] mPointRadii;
private Rect mRect;
private double mX;
private double mY;
private double mZ;
private int mMetaState;
private int mFlags;
private int mKeyCode;
private int mUnicodeChar;
private int mBaseUnicodeChar; // mUnicodeChar without meta states applied
private int mRepeatCount;
private int mCount;
private int mStart;
private int mEnd;
private String mCharacters;
private String mCharactersExtra;
private int mRangeType;
private int mRangeStyles;
private int mRangeLineStyle;
private boolean mRangeBoldLine;
private int mRangeForeColor;
private int mRangeBackColor;
private int mRangeLineColor;
private Location mLocation;
private Address mAddress;
private int mDomKeyLocation;
private double mBandwidth;
private boolean mCanBeMetered;
private int mNativeWindow;
private short mScreenOrientation;
private ByteBuffer mBuffer;
private int mWidth;
private int mHeight;
private GeckoEvent(int evType) {
mType = evType;
}
public static GeckoEvent createAppBackgroundingEvent() {
return new GeckoEvent(APP_BACKGROUNDING);
}
public static GeckoEvent createAppForegroundingEvent() {
return new GeckoEvent(APP_FOREGROUNDING);
}
public static GeckoEvent createNoOpEvent() {
return new GeckoEvent(NOOP);
}
public static GeckoEvent createKeyEvent(KeyEvent k, int metaState) {
GeckoEvent event = new GeckoEvent(KEY_EVENT);
event.initKeyEvent(k, metaState);
return event;
}
public static GeckoEvent createCompositorCreateEvent(int width, int height) {
GeckoEvent event = new GeckoEvent(COMPOSITOR_CREATE);
event.mWidth = width;
event.mHeight = height;
return event;
}
public static GeckoEvent createCompositorPauseEvent() {
return new GeckoEvent(COMPOSITOR_PAUSE);
}
public static GeckoEvent createCompositorResumeEvent() {
return new GeckoEvent(COMPOSITOR_RESUME);
}
private void initKeyEvent(KeyEvent k, int metaState) {
mAction = k.getAction();
mTime = k.getEventTime();
// Normally we expect k.getMetaState() to reflect the current meta-state; however,
// some software-generated key events may not have k.getMetaState() set, e.g. key
// events from Swype. Therefore, it's necessary to combine the key's meta-states
// with the meta-states that we keep separately in KeyListener
mMetaState = k.getMetaState() | metaState;
mFlags = k.getFlags();
mKeyCode = k.getKeyCode();
mUnicodeChar = k.getUnicodeChar(mMetaState);
// e.g. for Ctrl+A, Android returns 0 for mUnicodeChar,
// but Gecko expects 'a', so we return that in mBaseUnicodeChar
mBaseUnicodeChar = k.getUnicodeChar(0);
mRepeatCount = k.getRepeatCount();
mCharacters = k.getCharacters();
mDomKeyLocation = isJoystickButton(mKeyCode) ? DOM_KEY_LOCATION_JOYSTICK : DOM_KEY_LOCATION_MOBILE;
}
/**
* This method tests if a key is one of the described in:
* https://bugzilla.mozilla.org/show_bug.cgi?id=756504#c0
* @param keyCode int with the key code (Android key constant from KeyEvent)
* @return true if the key is one of the listed above, false otherwise.
*/
private static boolean isJoystickButton(int keyCode) {
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_DPAD_LEFT:
case KeyEvent.KEYCODE_DPAD_RIGHT:
case KeyEvent.KEYCODE_DPAD_DOWN:
case KeyEvent.KEYCODE_DPAD_UP:
return true;
default:
if (Build.VERSION.SDK_INT >= 12) {
return KeyEvent.isGamepadButton(keyCode);
}
return GeckoEvent.isGamepadButton(keyCode);
}
}
/**
* This method is a replacement for the the KeyEvent.isGamepadButton method to be
* compatible with Build.VERSION.SDK_INT < 12. This is an implementantion of the
* same method isGamepadButton available after SDK 12.
* @param keyCode int with the key code (Android key constant from KeyEvent).
* @return True if the keycode is a gamepad button, such as {@link #KEYCODE_BUTTON_A}.
*/
private static boolean isGamepadButton(int keyCode) {
switch (keyCode) {
case KeyEvent.KEYCODE_BUTTON_A:
case KeyEvent.KEYCODE_BUTTON_B:
case KeyEvent.KEYCODE_BUTTON_C:
case KeyEvent.KEYCODE_BUTTON_X:
case KeyEvent.KEYCODE_BUTTON_Y:
case KeyEvent.KEYCODE_BUTTON_Z:
case KeyEvent.KEYCODE_BUTTON_L1:
case KeyEvent.KEYCODE_BUTTON_R1:
case KeyEvent.KEYCODE_BUTTON_L2:
case KeyEvent.KEYCODE_BUTTON_R2:
case KeyEvent.KEYCODE_BUTTON_THUMBL:
case KeyEvent.KEYCODE_BUTTON_THUMBR:
case KeyEvent.KEYCODE_BUTTON_START:
case KeyEvent.KEYCODE_BUTTON_SELECT:
case KeyEvent.KEYCODE_BUTTON_MODE:
case KeyEvent.KEYCODE_BUTTON_1:
case KeyEvent.KEYCODE_BUTTON_2:
case KeyEvent.KEYCODE_BUTTON_3:
case KeyEvent.KEYCODE_BUTTON_4:
case KeyEvent.KEYCODE_BUTTON_5:
case KeyEvent.KEYCODE_BUTTON_6:
case KeyEvent.KEYCODE_BUTTON_7:
case KeyEvent.KEYCODE_BUTTON_8:
case KeyEvent.KEYCODE_BUTTON_9:
case KeyEvent.KEYCODE_BUTTON_10:
case KeyEvent.KEYCODE_BUTTON_11:
case KeyEvent.KEYCODE_BUTTON_12:
case KeyEvent.KEYCODE_BUTTON_13:
case KeyEvent.KEYCODE_BUTTON_14:
case KeyEvent.KEYCODE_BUTTON_15:
case KeyEvent.KEYCODE_BUTTON_16:
return true;
default:
return false;
}
}
public static GeckoEvent createNativeGestureEvent(int action, PointF pt, double size) {
try {
GeckoEvent event = new GeckoEvent(NATIVE_GESTURE_EVENT);
event.mAction = action;
event.mCount = 1;
event.mPoints = new Point[1];
PointF geckoPoint = new PointF(pt.x, pt.y);
geckoPoint = GeckoApp.mAppContext.getLayerView().convertViewPointToLayerPoint(geckoPoint);
if (geckoPoint == null) {
// This could happen if Gecko isn't ready yet.
return null;
}
event.mPoints[0] = new Point(Math.round(geckoPoint.x), Math.round(geckoPoint.y));
event.mX = size;
event.mTime = System.currentTimeMillis();
return event;
} catch (Exception e) {
// This can happen if Gecko isn't ready yet
return null;
}
}
public static GeckoEvent createMotionEvent(MotionEvent m) {
GeckoEvent event = new GeckoEvent(MOTION_EVENT);
event.initMotionEvent(m);
return event;
}
private void initMotionEvent(MotionEvent m) {
mAction = m.getAction();
mTime = (System.currentTimeMillis() - SystemClock.elapsedRealtime()) + m.getEventTime();
mMetaState = m.getMetaState();
switch (mAction & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP:
case MotionEvent.ACTION_POINTER_DOWN:
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_MOVE:
case MotionEvent.ACTION_HOVER_ENTER:
case MotionEvent.ACTION_HOVER_MOVE:
case MotionEvent.ACTION_HOVER_EXIT: {
mCount = m.getPointerCount();
mPoints = new Point[mCount];
mPointIndicies = new int[mCount];
mOrientations = new float[mCount];
mPressures = new float[mCount];
mPointRadii = new Point[mCount];
mPointerIndex = (mAction & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
for (int i = 0; i < mCount; i++) {
addMotionPoint(i, i, m);
}
break;
}
default: {
mCount = 0;
mPointerIndex = -1;
mPoints = new Point[mCount];
mPointIndicies = new int[mCount];
mOrientations = new float[mCount];
mPressures = new float[mCount];
mPointRadii = new Point[mCount];
}
}
}
public void addMotionPoint(int index, int eventIndex, MotionEvent event) {
try {
PointF geckoPoint = new PointF(event.getX(eventIndex), event.getY(eventIndex));
geckoPoint = GeckoApp.mAppContext.getLayerView().convertViewPointToLayerPoint(geckoPoint);
mPoints[index] = new Point(Math.round(geckoPoint.x), Math.round(geckoPoint.y));
mPointIndicies[index] = event.getPointerId(eventIndex);
// getToolMajor, getToolMinor and getOrientation are API Level 9 features
if (Build.VERSION.SDK_INT >= 9) {
double radians = event.getOrientation(eventIndex);
mOrientations[index] = (float) Math.toDegrees(radians);
// w3c touchevents spec does not allow orientations == 90
// this shifts it to -90, which will be shifted to zero below
if (mOrientations[index] == 90)
mOrientations[index] = -90;
// w3c touchevent radius are given by an orientation between 0 and 90
// the radius is found by removing the orientation and measuring the x and y
// radius of the resulting ellipse
// for android orientations >= 0 and < 90, the major axis should correspond to
// just reporting the y radius as the major one, and x as minor
// however, for a radius < 0, we have to shift the orientation by adding 90, and
// reverse which radius is major and minor
if (mOrientations[index] < 0) {
mOrientations[index] += 90;
mPointRadii[index] = new Point((int)event.getToolMajor(eventIndex)/2,
(int)event.getToolMinor(eventIndex)/2);
} else {
mPointRadii[index] = new Point((int)event.getToolMinor(eventIndex)/2,
(int)event.getToolMajor(eventIndex)/2);
}
} else {
float size = event.getSize(eventIndex);
Resources resources = GeckoApp.mAppContext.getResources();
DisplayMetrics displaymetrics = resources.getDisplayMetrics();
size = size*Math.min(displaymetrics.heightPixels, displaymetrics.widthPixels);
mPointRadii[index] = new Point((int)size,(int)size);
mOrientations[index] = 0;
}
mPressures[index] = event.getPressure(eventIndex);
} catch (Exception ex) {
Log.e(LOGTAG, "Error creating motion point " + index, ex);
mPointRadii[index] = new Point(0, 0);
mPoints[index] = new Point(0, 0);
}
}
private static int HalSensorAccuracyFor(int androidAccuracy) {
switch (androidAccuracy) {
case SensorManager.SENSOR_STATUS_UNRELIABLE:
return GeckoHalDefines.SENSOR_ACCURACY_UNRELIABLE;
case SensorManager.SENSOR_STATUS_ACCURACY_LOW:
return GeckoHalDefines.SENSOR_ACCURACY_LOW;
case SensorManager.SENSOR_STATUS_ACCURACY_MEDIUM:
return GeckoHalDefines.SENSOR_ACCURACY_MED;
case SensorManager.SENSOR_STATUS_ACCURACY_HIGH:
return GeckoHalDefines.SENSOR_ACCURACY_HIGH;
}
return GeckoHalDefines.SENSOR_ACCURACY_UNKNOWN;
}
public static GeckoEvent createSensorEvent(SensorEvent s) {
int sensor_type = s.sensor.getType();
GeckoEvent event = null;
switch(sensor_type) {
case Sensor.TYPE_ACCELEROMETER:
event = new GeckoEvent(SENSOR_EVENT);
event.mFlags = GeckoHalDefines.SENSOR_ACCELERATION;
event.mMetaState = HalSensorAccuracyFor(s.accuracy);
event.mX = s.values[0];
event.mY = s.values[1];
event.mZ = s.values[2];
break;
case 10 /* Requires API Level 9, so just use the raw value - Sensor.TYPE_LINEAR_ACCELEROMETER*/ :
event = new GeckoEvent(SENSOR_EVENT);
event.mFlags = GeckoHalDefines.SENSOR_LINEAR_ACCELERATION;
event.mMetaState = HalSensorAccuracyFor(s.accuracy);
event.mX = s.values[0];
event.mY = s.values[1];
event.mZ = s.values[2];
break;
case Sensor.TYPE_ORIENTATION:
event = new GeckoEvent(SENSOR_EVENT);
event.mFlags = GeckoHalDefines.SENSOR_ORIENTATION;
event.mMetaState = HalSensorAccuracyFor(s.accuracy);
event.mX = s.values[0];
event.mY = s.values[1];
event.mZ = s.values[2];
break;
case Sensor.TYPE_GYROSCOPE:
event = new GeckoEvent(SENSOR_EVENT);
event.mFlags = GeckoHalDefines.SENSOR_GYROSCOPE;
event.mMetaState = HalSensorAccuracyFor(s.accuracy);
event.mX = Math.toDegrees(s.values[0]);
event.mY = Math.toDegrees(s.values[1]);
event.mZ = Math.toDegrees(s.values[2]);
break;
case Sensor.TYPE_PROXIMITY:
event = new GeckoEvent(SENSOR_EVENT);
event.mFlags = GeckoHalDefines.SENSOR_PROXIMITY;
event.mMetaState = HalSensorAccuracyFor(s.accuracy);
event.mX = s.values[0];
event.mY = 0;
event.mZ = s.sensor.getMaximumRange();
break;
case Sensor.TYPE_LIGHT:
event = new GeckoEvent(SENSOR_EVENT);
event.mFlags = GeckoHalDefines.SENSOR_LIGHT;
event.mMetaState = HalSensorAccuracyFor(s.accuracy);
event.mX = s.values[0];
break;
}
return event;
}
public static GeckoEvent createLocationEvent(Location l) {
GeckoEvent event = new GeckoEvent(LOCATION_EVENT);
event.mLocation = l;
return event;
}
public static GeckoEvent createIMEEvent(int action) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.mAction = action;
return event;
}
public static GeckoEvent createIMEKeyEvent(KeyEvent k) {
GeckoEvent event = new GeckoEvent(IME_KEY_EVENT);
event.initKeyEvent(k, 0);
return event;
}
public static GeckoEvent createIMEReplaceEvent(int start, int end,
String text) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.mAction = IME_REPLACE_TEXT;
event.mStart = start;
event.mEnd = end;
event.mCharacters = text;
return event;
}
public static GeckoEvent createIMESelectEvent(int start, int end) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.mAction = IME_SET_SELECTION;
event.mStart = start;
event.mEnd = end;
return event;
}
public static GeckoEvent createIMECompositionEvent(int start, int end) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.mAction = IME_UPDATE_COMPOSITION;
event.mStart = start;
event.mEnd = end;
return event;
}
public static GeckoEvent createIMERangeEvent(int start,
int end, int rangeType,
int rangeStyles,
int rangeLineStyle,
boolean rangeBoldLine,
int rangeForeColor,
int rangeBackColor,
int rangeLineColor) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.mAction = IME_ADD_COMPOSITION_RANGE;
event.mStart = start;
event.mEnd = end;
event.mRangeType = rangeType;
event.mRangeStyles = rangeStyles;
event.mRangeLineStyle = rangeLineStyle;
event.mRangeBoldLine = rangeBoldLine;
event.mRangeForeColor = rangeForeColor;
event.mRangeBackColor = rangeBackColor;
event.mRangeLineColor = rangeLineColor;
return event;
}
public static GeckoEvent createDrawEvent(Rect rect) {
GeckoEvent event = new GeckoEvent(DRAW);
event.mRect = rect;
return event;
}
public static GeckoEvent createSizeChangedEvent(int w, int h, int screenw, int screenh) {
GeckoEvent event = new GeckoEvent(SIZE_CHANGED);
event.mPoints = new Point[2];
event.mPoints[0] = new Point(w, h);
event.mPoints[1] = new Point(screenw, screenh);
return event;
}
public static GeckoEvent createBroadcastEvent(String subject, String data) {
GeckoEvent event = new GeckoEvent(BROADCAST);
event.mCharacters = subject;
event.mCharactersExtra = data;
return event;
}
public static GeckoEvent createViewportEvent(ImmutableViewportMetrics metrics, DisplayPortMetrics displayPort) {
GeckoEvent event = new GeckoEvent(VIEWPORT);
event.mCharacters = "Viewport:Change";
StringBuffer sb = new StringBuffer(256);
sb.append("{ \"x\" : ").append(metrics.viewportRectLeft)
.append(", \"y\" : ").append(metrics.viewportRectTop)
.append(", \"zoom\" : ").append(metrics.zoomFactor)
.append(", \"fixedMarginLeft\" : ").append(metrics.fixedLayerMarginLeft)
.append(", \"fixedMarginTop\" : ").append(metrics.fixedLayerMarginTop)
.append(", \"fixedMarginRight\" : ").append(metrics.fixedLayerMarginRight)
.append(", \"fixedMarginBottom\" : ").append(metrics.fixedLayerMarginBottom)
.append(", \"displayPort\" :").append(displayPort.toJSON())
.append('}');
event.mCharactersExtra = sb.toString();
return event;
}
public static GeckoEvent createURILoadEvent(String uri) {
GeckoEvent event = new GeckoEvent(LOAD_URI);
event.mCharacters = uri;
event.mCharactersExtra = "";
return event;
}
public static GeckoEvent createWebappLoadEvent(String uri) {
GeckoEvent event = new GeckoEvent(LOAD_URI);
event.mCharacters = uri;
event.mCharactersExtra = "-webapp";
return event;
}
public static GeckoEvent createBookmarkLoadEvent(String uri) {
GeckoEvent event = new GeckoEvent(LOAD_URI);
event.mCharacters = uri;
event.mCharactersExtra = "-bookmark";
return event;
}
public static GeckoEvent createVisitedEvent(String data) {
GeckoEvent event = new GeckoEvent(VISITED);
event.mCharacters = data;
return event;
}
public static GeckoEvent createNetworkEvent(double bandwidth, boolean canBeMetered) {
GeckoEvent event = new GeckoEvent(NETWORK_CHANGED);
event.mBandwidth = bandwidth;
event.mCanBeMetered = canBeMetered;
return event;
}
public static GeckoEvent createThumbnailEvent(int tabId, int bufw, int bufh, ByteBuffer buffer) {
GeckoEvent event = new GeckoEvent(THUMBNAIL);
event.mPoints = new Point[1];
event.mPoints[0] = new Point(bufw, bufh);
event.mMetaState = tabId;
event.mBuffer = buffer;
return event;
}
public static GeckoEvent createScreenOrientationEvent(short aScreenOrientation) {
GeckoEvent event = new GeckoEvent(SCREENORIENTATION_CHANGED);
event.mScreenOrientation = aScreenOrientation;
return event;
}
public void setAckNeeded(boolean ackNeeded) {
mAckNeeded = ackNeeded;
}
}