| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.statusbar.policy; |
| |
| import android.app.ActivityManager; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.Icon; |
| import android.hardware.input.InputManager; |
| import android.media.AudioManager; |
| import android.metrics.LogMaker; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.SystemClock; |
| import android.util.AttributeSet; |
| import android.util.TypedValue; |
| import android.view.HapticFeedbackConstants; |
| import android.view.InputDevice; |
| import android.view.KeyCharacterMap; |
| import android.view.KeyEvent; |
| import android.view.MotionEvent; |
| import android.view.SoundEffectConstants; |
| import android.view.View; |
| import android.view.ViewConfiguration; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.view.accessibility.AccessibilityNodeInfo; |
| import android.widget.ImageView; |
| |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| import com.android.systemui.Dependency; |
| import com.android.systemui.R; |
| import com.android.systemui.plugins.statusbar.phone.NavBarButtonProvider.ButtonInterface; |
| |
| import static android.view.accessibility.AccessibilityNodeInfo.ACTION_CLICK; |
| import static android.view.accessibility.AccessibilityNodeInfo.ACTION_LONG_CLICK; |
| |
| public class KeyButtonView extends ImageView implements ButtonInterface { |
| |
| private final boolean mPlaySounds; |
| private int mContentDescriptionRes; |
| private long mDownTime; |
| private int mCode; |
| private int mTouchSlop; |
| private boolean mSupportsLongpress = true; |
| private AudioManager mAudioManager; |
| private boolean mGestureAborted; |
| private boolean mLongClicked; |
| private OnClickListener mOnClickListener; |
| private final KeyButtonRipple mRipple; |
| private final MetricsLogger mMetricsLogger = Dependency.get(MetricsLogger.class); |
| |
| private final Runnable mCheckLongPress = new Runnable() { |
| public void run() { |
| if (isPressed()) { |
| // Log.d("KeyButtonView", "longpressed: " + this); |
| if (isLongClickable()) { |
| // Just an old-fashioned ImageView |
| performLongClick(); |
| mLongClicked = true; |
| } else if (mSupportsLongpress) { |
| sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_LONG_PRESS); |
| sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_LONG_CLICKED); |
| mLongClicked = true; |
| } |
| } |
| } |
| }; |
| |
| public KeyButtonView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public KeyButtonView(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.KeyButtonView, |
| defStyle, 0); |
| |
| mCode = a.getInteger(R.styleable.KeyButtonView_keyCode, 0); |
| |
| mSupportsLongpress = a.getBoolean(R.styleable.KeyButtonView_keyRepeat, true); |
| mPlaySounds = a.getBoolean(R.styleable.KeyButtonView_playSound, true); |
| |
| TypedValue value = new TypedValue(); |
| if (a.getValue(R.styleable.KeyButtonView_android_contentDescription, value)) { |
| mContentDescriptionRes = value.resourceId; |
| } |
| |
| a.recycle(); |
| |
| setClickable(true); |
| mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop(); |
| mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); |
| |
| mRipple = new KeyButtonRipple(context, this); |
| setBackground(mRipple); |
| } |
| |
| @Override |
| public boolean isClickable() { |
| return mCode != 0 || super.isClickable(); |
| } |
| |
| public void setCode(int code) { |
| mCode = code; |
| } |
| |
| @Override |
| public void setOnClickListener(OnClickListener onClickListener) { |
| super.setOnClickListener(onClickListener); |
| mOnClickListener = onClickListener; |
| } |
| |
| public void loadAsync(Icon icon) { |
| new AsyncTask<Icon, Void, Drawable>() { |
| @Override |
| protected Drawable doInBackground(Icon... params) { |
| return params[0].loadDrawable(mContext); |
| } |
| |
| @Override |
| protected void onPostExecute(Drawable drawable) { |
| setImageDrawable(drawable); |
| } |
| }.execute(icon); |
| } |
| |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| |
| if (mContentDescriptionRes != 0) { |
| setContentDescription(mContext.getString(mContentDescriptionRes)); |
| } |
| } |
| |
| @Override |
| public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { |
| super.onInitializeAccessibilityNodeInfo(info); |
| if (mCode != 0) { |
| info.addAction(new AccessibilityNodeInfo.AccessibilityAction(ACTION_CLICK, null)); |
| if (mSupportsLongpress || isLongClickable()) { |
| info.addAction( |
| new AccessibilityNodeInfo.AccessibilityAction(ACTION_LONG_CLICK, null)); |
| } |
| } |
| } |
| |
| @Override |
| protected void onWindowVisibilityChanged(int visibility) { |
| super.onWindowVisibilityChanged(visibility); |
| if (visibility != View.VISIBLE) { |
| jumpDrawablesToCurrentState(); |
| } |
| } |
| |
| @Override |
| public boolean performAccessibilityActionInternal(int action, Bundle arguments) { |
| if (action == ACTION_CLICK && mCode != 0) { |
| sendEvent(KeyEvent.ACTION_DOWN, 0, SystemClock.uptimeMillis()); |
| sendEvent(KeyEvent.ACTION_UP, 0); |
| sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED); |
| playSoundEffect(SoundEffectConstants.CLICK); |
| return true; |
| } else if (action == ACTION_LONG_CLICK && mCode != 0) { |
| sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_LONG_PRESS); |
| sendEvent(KeyEvent.ACTION_UP, 0); |
| sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_LONG_CLICKED); |
| return true; |
| } |
| return super.performAccessibilityActionInternal(action, arguments); |
| } |
| |
| public boolean onTouchEvent(MotionEvent ev) { |
| final int action = ev.getAction(); |
| int x, y; |
| if (action == MotionEvent.ACTION_DOWN) { |
| mGestureAborted = false; |
| } |
| if (mGestureAborted) { |
| return false; |
| } |
| |
| switch (action) { |
| case MotionEvent.ACTION_DOWN: |
| mDownTime = SystemClock.uptimeMillis(); |
| mLongClicked = false; |
| setPressed(true); |
| if (mCode != 0) { |
| sendEvent(KeyEvent.ACTION_DOWN, 0, mDownTime); |
| } else { |
| // Provide the same haptic feedback that the system offers for virtual keys. |
| performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY); |
| } |
| playSoundEffect(SoundEffectConstants.CLICK); |
| removeCallbacks(mCheckLongPress); |
| postDelayed(mCheckLongPress, ViewConfiguration.getLongPressTimeout()); |
| break; |
| case MotionEvent.ACTION_MOVE: |
| x = (int)ev.getX(); |
| y = (int)ev.getY(); |
| setPressed(x >= -mTouchSlop |
| && x < getWidth() + mTouchSlop |
| && y >= -mTouchSlop |
| && y < getHeight() + mTouchSlop); |
| break; |
| case MotionEvent.ACTION_CANCEL: |
| setPressed(false); |
| if (mCode != 0) { |
| sendEvent(KeyEvent.ACTION_UP, KeyEvent.FLAG_CANCELED); |
| } |
| removeCallbacks(mCheckLongPress); |
| break; |
| case MotionEvent.ACTION_UP: |
| final boolean doIt = isPressed() && !mLongClicked; |
| setPressed(false); |
| // Always send a release ourselves because it doesn't seem to be sent elsewhere |
| // and it feels weird to sometimes get a release haptic and other times not. |
| if ((SystemClock.uptimeMillis() - mDownTime) > 150 && !mLongClicked) { |
| performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY_RELEASE); |
| } |
| if (mCode != 0) { |
| if (doIt) { |
| sendEvent(KeyEvent.ACTION_UP, 0); |
| sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED); |
| } else { |
| sendEvent(KeyEvent.ACTION_UP, KeyEvent.FLAG_CANCELED); |
| } |
| } else { |
| // no key code, just a regular ImageView |
| if (doIt && mOnClickListener != null) { |
| mOnClickListener.onClick(this); |
| sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED); |
| } |
| } |
| removeCallbacks(mCheckLongPress); |
| break; |
| } |
| |
| return true; |
| } |
| |
| public void playSoundEffect(int soundConstant) { |
| if (!mPlaySounds) return; |
| mAudioManager.playSoundEffect(soundConstant, ActivityManager.getCurrentUser()); |
| } |
| |
| public void sendEvent(int action, int flags) { |
| sendEvent(action, flags, SystemClock.uptimeMillis()); |
| } |
| |
| void sendEvent(int action, int flags, long when) { |
| mMetricsLogger.write(new LogMaker(MetricsEvent.ACTION_NAV_BUTTON_EVENT) |
| .setType(MetricsEvent.TYPE_ACTION) |
| .setSubtype(mCode) |
| .addTaggedData(MetricsEvent.FIELD_NAV_ACTION, action) |
| .addTaggedData(MetricsEvent.FIELD_FLAGS, flags)); |
| final int repeatCount = (flags & KeyEvent.FLAG_LONG_PRESS) != 0 ? 1 : 0; |
| final KeyEvent ev = new KeyEvent(mDownTime, when, action, mCode, repeatCount, |
| 0, KeyCharacterMap.VIRTUAL_KEYBOARD, 0, |
| flags | KeyEvent.FLAG_FROM_SYSTEM | KeyEvent.FLAG_VIRTUAL_HARD_KEY, |
| InputDevice.SOURCE_KEYBOARD); |
| InputManager.getInstance().injectInputEvent(ev, |
| InputManager.INJECT_INPUT_EVENT_MODE_ASYNC); |
| } |
| |
| @Override |
| public void abortCurrentGesture() { |
| setPressed(false); |
| mRipple.abortDelayedRipple(); |
| mGestureAborted = true; |
| } |
| |
| @Override |
| public void setDarkIntensity(float darkIntensity) { |
| Drawable drawable = getDrawable(); |
| if (drawable != null) { |
| ((KeyButtonDrawable) getDrawable()).setDarkIntensity(darkIntensity); |
| |
| // Since we reuse the same drawable for multiple views, we need to invalidate the view |
| // manually. |
| invalidate(); |
| } |
| mRipple.setDarkIntensity(darkIntensity); |
| } |
| |
| @Override |
| public void setDelayTouchFeedback(boolean shouldDelay) { |
| mRipple.setDelayTouchFeedback(shouldDelay); |
| } |
| |
| @Override |
| public void setVertical(boolean vertical) { |
| //no op |
| } |
| } |
| |
| |