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gecko-dev
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gecko-dev/embedding/android/GeckoEvent.java

398 строки
15 KiB
Java
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/* -*- Mode: Java; 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 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 java.nio.ByteBuffer;
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.
*/
public class GeckoEvent {
public static final int INVALID = -1;
public static final int NATIVE_POKE = 0;
public static final int KEY_EVENT = 1;
public static final int MOTION_EVENT = 2;
public static final int ORIENTATION_EVENT = 3;
public static final int ACCELERATION_EVENT = 4;
public static final int LOCATION_EVENT = 5;
public static final int IME_EVENT = 6;
public static final int DRAW = 7;
public static final int SIZE_CHANGED = 8;
public static final int ACTIVITY_STOPPING = 9;
public static final int ACTIVITY_PAUSING = 10;
public static final int ACTIVITY_SHUTDOWN = 11;
public static final int LOAD_URI = 12;
public static final int SURFACE_CREATED = 13;
public static final int SURFACE_DESTROYED = 14;
public static final int GECKO_EVENT_SYNC = 15;
public static final int ACTIVITY_START = 17;
public static final int SAVE_STATE = 18;
public static final int BROADCAST = 19;
public static final int VIEWPORT = 20;
public static final int VISITED = 21;
public static final int NETWORK_CHANGED = 22;
public static final int PROXIMITY_EVENT = 23;
public static final int SCREENORIENTATION_CHANGED = 26;
/**
* 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_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;
public int mType;
public int mAction;
public long mTime;
public Point[] mPoints;
public int[] mPointIndicies;
public int mPointerIndex;
public float[] mOrientations;
public float[] mPressures;
public Point[] mPointRadii;
public Rect mRect;
public double mX, mY, mZ;
public double mAlpha, mBeta, mGamma;
public double mDistance;
public int mMetaState, mFlags;
public int mKeyCode, mUnicodeChar;
public int mRepeatCount;
public int mOffset, mCount;
public String mCharacters, mCharactersExtra;
public int mRangeType, mRangeStyles;
public int mRangeForeColor, mRangeBackColor;
public Location mLocation;
public Address mAddress;
public int mDomKeyLocation;
public double mBandwidth;
public boolean mCanBeMetered;
public short mScreenOrientation;
public int mNativeWindow;
public ByteBuffer mBuffer;
public GeckoEvent() {
mType = NATIVE_POKE;
}
public GeckoEvent(int evType) {
mType = evType;
}
public GeckoEvent(KeyEvent k) {
mType = KEY_EVENT;
mAction = k.getAction();
mTime = k.getEventTime();
mMetaState = k.getMetaState();
mFlags = k.getFlags();
mKeyCode = k.getKeyCode();
mUnicodeChar = k.getUnicodeChar();
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 GeckoEvent(MotionEvent m) {
mType = MOTION_EVENT;
mAction = m.getAction();
mTime = 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) {
PointF geckoPoint = new PointF(event.getX(eventIndex), event.getY(eventIndex));
mPoints[index] = new Point((int)Math.round(geckoPoint.x), (int)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);
}
public GeckoEvent(SensorEvent s) {
int sensor_type = s.sensor.getType();
switch(sensor_type) {
case Sensor.TYPE_ACCELEROMETER:
mType = ACCELERATION_EVENT;
mX = s.values[0];
mY = s.values[1];
mZ = s.values[2];
break;
case Sensor.TYPE_ORIENTATION:
mType = ORIENTATION_EVENT;
mAlpha = -s.values[0];
mBeta = -s.values[1];
mGamma = -s.values[2];
Log.i("GeckoEvent", "SensorEvent type = " + s.sensor.getType() + " " + s.sensor.getName() + " " + mAlpha + " " + mBeta + " " + mGamma );
break;
case Sensor.TYPE_PROXIMITY:
mType = PROXIMITY_EVENT;
mDistance = s.values[0];
Log.i("GeckoEvent", "SensorEvent type = " + s.sensor.getType() +
" " + s.sensor.getName() + " " + mDistance);
break;
}
}
public GeckoEvent(Location l) {
mType = LOCATION_EVENT;
mLocation = l;
}
public GeckoEvent(int imeAction, int offset, int count) {
mType = IME_EVENT;
mAction = imeAction;
mOffset = offset;
mCount = count;
}
private void InitIMERange(int action, int offset, int count,
int rangeType, int rangeStyles,
int rangeForeColor, int rangeBackColor) {
mType = IME_EVENT;
mAction = action;
mOffset = offset;
mCount = count;
mRangeType = rangeType;
mRangeStyles = rangeStyles;
mRangeForeColor = rangeForeColor;
mRangeBackColor = rangeBackColor;
return;
}
public GeckoEvent(int offset, int count,
int rangeType, int rangeStyles,
int rangeForeColor, int rangeBackColor, String text) {
InitIMERange(IME_SET_TEXT, offset, count, rangeType, rangeStyles,
rangeForeColor, rangeBackColor);
mCharacters = text;
}
public GeckoEvent(int offset, int count,
int rangeType, int rangeStyles,
int rangeForeColor, int rangeBackColor) {
InitIMERange(IME_ADD_RANGE, offset, count, rangeType, rangeStyles,
rangeForeColor, rangeBackColor);
}
public GeckoEvent(int etype, Rect dirty) {
if (etype != DRAW) {
mType = INVALID;
return;
}
mType = etype;
mRect = dirty;
}
public GeckoEvent(int etype, int w, int h, int screenw, int screenh) {
if (etype != SIZE_CHANGED) {
mType = INVALID;
return;
}
mType = etype;
mPoints = new Point[3];
mPoints[0] = new Point(w, h);
mPoints[1] = new Point(screenw, screenh);
mPoints[2] = new Point(0, 0);
}
public GeckoEvent(String subject, String data) {
mType = BROADCAST;
mCharacters = subject;
mCharactersExtra = data;
}
public GeckoEvent(String uri) {
mType = LOAD_URI;
mCharacters = uri;
}
public GeckoEvent(double bandwidth, boolean canBeMetered) {
mType = NETWORK_CHANGED;
mBandwidth = bandwidth;
mCanBeMetered = canBeMetered;
}
public GeckoEvent(short aScreenOrientation) {
mType = SCREENORIENTATION_CHANGED;
mScreenOrientation = aScreenOrientation;
}
}
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