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gecko/mobile/android/base/GeckoEvent.java

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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Android code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009-2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package org.mozilla.gecko;
import org.mozilla.gecko.gfx.DisplayPortMetrics;
import org.mozilla.gecko.gfx.IntSize;
import org.mozilla.gecko.gfx.ViewportMetrics;
import android.os.*;
import android.app.*;
import android.view.*;
import android.content.*;
import android.graphics.*;
import android.widget.*;
import android.hardware.*;
import android.location.*;
import android.util.FloatMath;
import android.util.DisplayMetrics;
import android.graphics.PointF;
import android.text.format.Time;
import android.os.SystemClock;
import java.lang.Math;
import java.lang.System;
import android.util.Log;
/* 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";
private static final int INVALID = -1;
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 UNUSED1_EVENT = 4;
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 ACTIVITY_STOPPING = 9;
private static final int ACTIVITY_PAUSING = 10;
private static final int ACTIVITY_SHUTDOWN = 11;
private static final int LOAD_URI = 12;
private static final int SURFACE_CREATED = 13;
private static final int SURFACE_DESTROYED = 14;
private static final int GECKO_EVENT_SYNC = 15;
private static final int ACTIVITY_START = 17;
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 UNUSED3_EVENT = 23;
private static final int ACTIVITY_RESUMING = 24;
private static final int SCREENSHOT = 25;
private static final int UNUSED2_EVENT = 26;
private static final int SCREENORIENTATION_CHANGED = 27;
public static final int IME_COMPOSITION_END = 0;
public static final int IME_COMPOSITION_BEGIN = 1;
public static final int IME_SET_TEXT = 2;
public static final int IME_GET_TEXT = 3;
public static final int IME_DELETE_TEXT = 4;
public static final int IME_SET_SELECTION = 5;
public static final int IME_GET_SELECTION = 6;
public static final int IME_ADD_RANGE = 7;
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_UNDERLINE = 1;
public static final int IME_RANGE_FORECOLOR = 2;
public static final int IME_RANGE_BACKCOLOR = 4;
final public int mType;
public int mAction;
public long mTime;
public Point[] mPoints;
public int[] mPointIndicies;
public int mPointerIndex; // index of the point that has changed
public float[] mOrientations;
public float[] mPressures;
public Point[] mPointRadii;
public Rect mRect;
public double mX, mY, mZ;
public int mMetaState, mFlags;
public int mKeyCode, mUnicodeChar;
public int mOffset, mCount;
public String mCharacters, mCharactersExtra;
public int mRangeType, mRangeStyles;
public int mRangeForeColor, mRangeBackColor;
public Location mLocation;
public Address mAddress;
public double mBandwidth;
public boolean mCanBeMetered;
public int mNativeWindow;
public short mScreenOrientation;
private GeckoEvent(int evType) {
mType = evType;
}
public static GeckoEvent createPauseEvent(int activityDepth) {
GeckoEvent event = new GeckoEvent(ACTIVITY_PAUSING);
event.mFlags = activityDepth > 0 ? 1 : 0;
return event;
}
public static GeckoEvent createResumeEvent(int activityDepth) {
GeckoEvent event = new GeckoEvent(ACTIVITY_RESUMING);
event.mFlags = activityDepth > 0 ? 1 : 0;
return event;
}
public static GeckoEvent createStoppingEvent(int activityDepth) {
GeckoEvent event = new GeckoEvent(ACTIVITY_STOPPING);
event.mFlags = activityDepth > 0 ? 1 : 0;
return event;
}
public static GeckoEvent createStartEvent(int activityDepth) {
GeckoEvent event = new GeckoEvent(ACTIVITY_START);
event.mFlags = activityDepth > 0 ? 1 : 0;
return event;
}
public static GeckoEvent createShutdownEvent() {
return new GeckoEvent(ACTIVITY_SHUTDOWN);
}
public static GeckoEvent createSyncEvent() {
return new GeckoEvent(GECKO_EVENT_SYNC);
}
public static GeckoEvent createKeyEvent(KeyEvent k) {
GeckoEvent event = new GeckoEvent(KEY_EVENT);
event.initKeyEvent(k);
return event;
}
private void initKeyEvent(KeyEvent k) {
mAction = k.getAction();
mTime = k.getEventTime();
mMetaState = k.getMetaState();
mFlags = k.getFlags();
mKeyCode = k.getKeyCode();
mUnicodeChar = k.getUnicodeChar();
mCharacters = k.getCharacters();
}
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: {
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.getLayerController().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);
DisplayMetrics displaymetrics = new DisplayMetrics();
GeckoApp.mAppContext.getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
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.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 imeAction, int offset, int count) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.mAction = imeAction;
event.mOffset = offset;
event.mCount = count;
return event;
}
private void InitIMERange(int action, int offset, int count,
int rangeType, int rangeStyles,
int rangeForeColor, int rangeBackColor) {
mAction = action;
mOffset = offset;
mCount = count;
mRangeType = rangeType;
mRangeStyles = rangeStyles;
mRangeForeColor = rangeForeColor;
mRangeBackColor = rangeBackColor;
return;
}
public static GeckoEvent createIMERangeEvent(int offset, int count,
int rangeType, int rangeStyles,
int rangeForeColor, int rangeBackColor,
String text) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.InitIMERange(IME_SET_TEXT, offset, count, rangeType, rangeStyles,
rangeForeColor, rangeBackColor);
event.mCharacters = text;
return event;
}
public static GeckoEvent createIMERangeEvent(int offset, int count,
int rangeType, int rangeStyles,
int rangeForeColor, int rangeBackColor) {
GeckoEvent event = new GeckoEvent(IME_EVENT);
event.InitIMERange(IME_ADD_RANGE, offset, count, rangeType, rangeStyles,
rangeForeColor, rangeBackColor);
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(ViewportMetrics viewport, DisplayPortMetrics displayPort) {
GeckoEvent event = new GeckoEvent(VIEWPORT);
event.mCharacters = "Viewport:Change";
PointF origin = viewport.getOrigin();
StringBuffer sb = new StringBuffer(256);
sb.append("{ \"x\" : ").append(origin.x)
.append(", \"y\" : ").append(origin.y)
.append(", \"zoom\" : ").append(viewport.getZoomFactor())
.append(", \"displayPort\" :").append(displayPort.toJSON())
.append('}');
event.mCharactersExtra = sb.toString();
return event;
}
public static GeckoEvent createLoadEvent(String uri) {
GeckoEvent event = new GeckoEvent(LOAD_URI);
event.mCharacters = uri;
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 createScreenshotEvent(int tabId, int sw, int sh, int dw, int dh) {
GeckoEvent event = new GeckoEvent(SCREENSHOT);
event.mPoints = new Point[2];
event.mPoints[0] = new Point(sw, sh);
event.mPoints[1] = new Point(dw, dh);
event.mMetaState = tabId;
return event;
}
public static GeckoEvent createScreenOrientationEvent(short aScreenOrientation) {
GeckoEvent event = new GeckoEvent(SCREENORIENTATION_CHANGED);
event.mScreenOrientation = aScreenOrientation;
return event;
}
}
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