Example usage for android.view KeyEvent FLAG_FROM_SYSTEM

Introduction

In this page you can find the example usage for android.view KeyEvent FLAG_FROM_SYSTEM.

Prototype

int FLAG_FROM_SYSTEM

To view the source code for android.view KeyEvent FLAG_FROM_SYSTEM.

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Document

This mask is set if an event was known to come from a trusted part of the system.

Usage

From source file:com.fishstix.dosboxfree.DBGLSurfaceView.java

private boolean handleKey(int keyCode, final KeyEvent event) {
    if (mDebug)// w w w .  j  a v  a2s. co m
        Log.d("DosBoxTurbo", "handleKey keyCode=" + keyCode);
    int tKeyCode = 0;

    // check for xperia play back case
    if (keyCode == KeyEvent.KEYCODE_BACK && event.isAltPressed()) {
        int backval = customMap.get(DosBoxPreferences.XPERIA_BACK_BUTTON);
        if (backval > 0) {
            // Special Sony XPeria Play case
            if (mEnableDpad) {
                // FIRE2
                if ((mInputMode == INPUT_MODE_MOUSE) || (mInputMode == INPUT_MODE_REAL_MOUSE)) {
                    DosBoxControl.nativeMouse(0, 0, 0, 0, (event.getAction() == KeyEvent.ACTION_DOWN) ? 0 : 1,
                            BTN_B);
                } else if ((mInputMode == INPUT_MODE_JOYSTICK) || (mInputMode == INPUT_MODE_REAL_JOYSTICK)) {
                    DosBoxControl.nativeJoystick(0, 0, (event.getAction() == KeyEvent.ACTION_DOWN) ? 0 : 1,
                            BTN_B);
                }
            } else {
                // sony xperia play O (circle) button
                DosBoxControl.sendNativeKey(backval, (event.getAction() == KeyEvent.ACTION_DOWN), mModifierCtrl,
                        mModifierAlt, mModifierShift);
                return true; // consume event
            }
        }
        return true; // consume event
    }

    // Handle all other keyevents
    int value = customMap.get(keyCode);

    if (value > 0) {
        // found a valid mapping
        tKeyCode = getMappedKeyCode(value, event);
        if (tKeyCode > MAP_NONE) {
            DosBoxControl.sendNativeKey(tKeyCode, (event.getAction() == KeyEvent.ACTION_DOWN), mModifierCtrl,
                    mModifierAlt, mModifierShift);
            return true; // consume KeyEvent
        } else if (tKeyCode == MAP_EVENT_CONSUMED) {
            return true;
        }
    }

    if (keyCode == KeyEvent.KEYCODE_BACK) {
        // fishstix, allow remap of Android back button
        // catch no mapping
        if (event.getAction() == KeyEvent.ACTION_UP) {
            DBMenuSystem.doConfirmQuit(mParent);
        }
        return true;
    }

    switch (keyCode) {
    case KeyEvent.KEYCODE_UNKNOWN:
        break;

    default:
        boolean down = (event.getAction() == KeyEvent.ACTION_DOWN);
        if (mDebug)
            Log.d("DosBoxTurbo", "handleKey (default) keyCode=" + keyCode + " down=" + down);

        if (!down || (event.getRepeatCount() == 0)) {
            int unicode = event.getUnicodeChar();

            // filter system generated keys, but not hardware keypresses
            if ((event.isAltPressed() || event.isShiftPressed()) && (unicode == 0)
                    && ((event.getFlags() & KeyEvent.FLAG_FROM_SYSTEM) == 0))
                break;

            //fixed alt key problem for physical keyboard with only left alt
            if ((!mUseLeftAltOn) && (keyCode == KeyEvent.KEYCODE_ALT_LEFT)) {
                break;
            }

            if ((!mUseLeftAltOn) && (keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT)) {
                break;
            }

            if ((keyCode > 255) || (unicode > 255)) {
                //unknown keys
                break;
            }

            keyCode = keyCode | (unicode << 8);

            long diff = event.getEventTime() - event.getDownTime();

            if (!down && (diff < 50)) {
                //simulate as long press
                if (mDebug)
                    Log.d("DosBoxTurbo", "LongPress consumed keyCode=" + keyCode + " down=" + down);
                mKeyHandler.removeMessages(keyCode);
                mKeyHandler.sendEmptyMessageDelayed(keyCode, BUTTON_REPEAT_DELAY - diff);
            } else if (down && mKeyHandler.hasMessages(keyCode)) {
                if (mDebug)
                    Log.d("DosBoxTurbo", "KeyUp consumed keyCode=" + keyCode + " down=" + down);
                //there is an key up in queue, should be repeated event
            } else {
                boolean result = DosBoxControl.sendNativeKey(keyCode, down, mModifierCtrl, mModifierAlt,
                        mModifierShift);
                if (!down) {
                    mModifierCtrl = false;
                    mModifierAlt = false;
                    mModifierShift = false;
                }
                return result;
            }
        }
    }

    return false;
}

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