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How to use toEventDeviceName method in fMBT

Best Python code snippet using fMBT_python
fmbtuinput.py
Source:fmbtuinput.py
...545                                 re.findall('[ =](event[0-9]+)\s', d)[0])546        _g_filenames[_g_deviceNames[_name]] = _name547def toEventFilename(deviceName):548    return _g_deviceNames[deviceName]549def toEventDeviceName(filename):550    return _g_filenames[filename]551class InputDevice(object):552    def __init__(self):553        if not "_g_devices" in globals():554            refreshDeviceInfo()555        self._fd = -1556        self._filename = None557        self._uidev = None558        self._created = False559        self._opened = False560        self._name = None561    def __del__(self):562        if self._created:563            self.destroy()564    def __str__(self):565        return "%s(name=%s, filename=%s, created=%s, opened=%s, fd=%s)" % (566            self.__class__.__name__,567            repr(self._name),568            repr(self._filename),569            repr(self._created),570            repr(self._opened),571            repr(self._fd))572    def startCreating(self, name, vendor, product, version,573                      absmin=None, absmax=None):574        if self._fd > 0:575            raise InputDeviceError("InputDevice is already open")576        self._fd = os.open("/dev/uinput", os.O_WRONLY | os.O_NONBLOCK)577        if absmin == None:578            absmin = [0 for _ in xrange(abs_count)]579        if absmax == None:580            absmax = [0 for _ in xrange(abs_count)]581        absfuzz = [0 for _ in xrange(abs_count)]582        absflat = [0 for _ in xrange(abs_count)]583        self._name = name584        self._uidev = struct.pack(struct_uinput_user_dev,585                                  name, # name586                                  BUS_USB, # id.bus_type587                                  vendor, # id.vendor588                                  product, # id.product589                                  version, # id.version590                                  0, # ff_effects_max591                                  # TODO: why absmin + absmax gives592                                  # error for touch?593                                  *(absmax + absmin + absfuzz + absflat)594                              )595    def finishCreating(self):596        if self._fd < 1:597            raise InputDeviceError("startCreating() not called")598        bytes_written = os.write(self._fd, self._uidev)599        if bytes_written != sizeof_uinput_user_dev:600            raise InputDeviceError(601                "Writing to /dev/uinput failed, wrote %s/%s bytes"602                % (bytes_written, sizeof_uinput_user_dev))603        rv = fcntl.ioctl(self._fd, UI_DEV_CREATE)604        if rv != 0:605            raise InputDeviceError(606                "Creating device failed, ioctl UI_DEV_CREATE returned %s"607                % (rv,))608        self._created = True609        return True610    def destroy(self):611        if self._created:612            fcntl.ioctl(self._fd, UI_DEV_DESTROY)613            self._created = False614        self.close()615    def open(self, filename):616        if self._fd > 0:617            raise InputDeviceError("InputDevice is already open")618        if not filename.startswith("/dev/input"):619            filename = toEventFilename(filename)620        self._fd = os.open(filename, os.O_WRONLY | os.O_NONBLOCK)621        self._filename = filename622        self._created = False623        self._name = toEventDeviceName(self._filename)624        return self625    def close(self):626        if self._fd > 0:627            os.close(self._fd)628            self._fd = -1629    def filename(self):630        return self._filename631    def addCap(self, capBit, capCodeOrName, capCode2Name):632        if self._fd < 1:633            raise InputDeviceError("startCreating() not called")634        if self._created or self._opened:635            raise InputDeviceError("Cannot add capabilities after creation")636        if isinstance(capCodeOrName, int):637            capCode = capCodeOrName638        elif capCodeOrName in capCode2Name:639            capCode = capCode2Name[capCodeOrName]640        else:641            raise InputDeviceError('Unknown name "%s"' % (capCodeOrName,))642        return fcntl.ioctl(self._fd, capBit, capCode)643    def addEvent(self, eventCodeOrName):644        return self.addCap(UI_SET_EVBIT, eventCodeOrName, eventTypes)645    def addKey(self, keyCodeOrName):646        return self.addCap(UI_SET_KEYBIT, keyCodeOrName, keyCodes)647    def addRel(self, relCodeOrName):648        return self.addCap(UI_SET_RELBIT, relCodeOrName, relCodes)649    def addAbs(self, absCodeOrName):650        return self.addCap(UI_SET_ABSBIT, absCodeOrName, absCodes)651    def send(self, type_, code, value):652        if self._fd < 1:653            raise InputDeviceError("InputDevice is not open")654        if isinstance(type_, str):655            typeCode = eventTypes[type_]656        else:657            typeCode = type_658        if isinstance(code, str):659            codeCode = event_codetables[typeCode][code]660        else:661            codeCode = code662        return sendInputEvent(self._fd, typeCode, codeCode, value)663    def sync(self):664        if self._fd < 1:665            raise InputDeviceError("InputDevice is not open")666        return sendInputSync(self._fd)667class InputDeviceError(Exception):668    pass669class Mouse(InputDevice):670    def __init__(self, absoluteMove=False):671        """672        Parameters:673          absoluteMove (boolean, optional)674                  force move(x,y) to send absolute coordinates instead675                  of standard relative movement. This helps avoiding676                  mouse pointer drift in some occasions. The default677                  is False.678        """679        InputDevice.__init__(self)680        self._x = 0681        self._y = 0682        self._sendAbs = absoluteMove683    def create(self, name="Virtual fMBT Mouse",684               vendor=0xf4b7, product=0x4053, version=1):685        self.startCreating(name, vendor, product, version)686        self.addEvent("EV_KEY")687        self.addEvent("EV_REL")688        if self._sendAbs:689            self.addEvent("EV_ABS")690        self.addEvent("EV_SYN")691        self.addRel("REL_X")692        self.addRel("REL_Y")693        self.addRel("REL_HWHEEL")694        self.addRel("REL_WHEEL")695        self.addKey("BTN_LEFT")696        self.addKey("BTN_RIGHT")697        self.addKey("BTN_MIDDLE")698        self.addKey("BTN_SIDE")699        self.addKey("BTN_EXTRA")700        self.addKey("BTN_FORWARD")701        self.addKey("BTN_BACK")702        self.addKey("BTN_TASK")703        if self._sendAbs:704            self.addAbs("ABS_X")705            self.addAbs("ABS_Y")706        self.finishCreating()707        return self708    def move(self, x, y):709        """710        Move mouse cursor to coordinates x, y.711        """712        if self._sendAbs:713            self.send("EV_ABS", "ABS_X", x)714            self.send("EV_ABS", "ABS_Y", y)715        else:716            deltaX = x - self._x717            deltaY = y - self._y718            self.send("EV_REL", "REL_X", deltaX)719            self.send("EV_REL", "REL_Y", deltaY)720        self.sync()721        self.setXY(x, y)722    def moveRel(self, deltaX, deltaY):723        self.send("EV_REL", "REL_X", deltaX)724        self.send("EV_REL", "REL_Y", deltaY)725        self.sync()726        self.setXY(self._x + deltaX, self._y + deltaY)727    def press(self, button):728        buttonCode = toButtonCode(button)729        self.send("EV_KEY", buttonCode, 1)730        self.sync()731    def release(self, button):732        buttonCode = toButtonCode(button)733        self.send("EV_KEY", buttonCode, 0)734        self.sync()735    def setXY(self, x, y):736        """737        Resets relative mouse position to (x, y), does not synthesize738        event. Example: disable possible mouse pointer drift:739        mouse.moveRel(-4096, -4096) # move to the top-left corner740        mouse.setXY(0, 0) # set current pointer coordinates to 0, 0741        After this, mouse.move(x, y) will synthesize relative mouse742        move event which will drive cursor to coordinates x, y.743        """744        self._x = x745        self._y = y746    def xy(self):747        return (self._x, self._y)748    def tap(self, x, y, button):749        self.move(x, y)750        self.press(button)751        self.release(button)752class Touch(InputDevice):753    """754    Simulates touchpanel and touchpad755    """756    def __init__(self, maxX = None, maxY = None,757                 screenWidth = None, screenHeight = None, screenAngle = None):758        InputDevice.__init__(self)759        self._maxX = maxX760        self._maxY = maxY761        self._screenW = screenWidth762        self._screenH = screenHeight763        self._screenA = screenAngle764        self._maxPressure = None765        self._multiTouch = True766        self._mtTrackingId = 0767        self._mtTracking = {}768        self._hoover = (0, 0)769    def create(self, name="Virtual fMBT Touch",770               vendor=0xf4b7, product=0x70c5, version=1,771               maxX=0xffff, maxY=0xffff, maxPressure=None,772               multiTouch = True):773        if maxX != None:774            self._maxX = maxX775        else:776            self._maxX = 0xffff777        if maxY != None:778            self._maxY = maxY779        else:780            self._maxY = 0xffff781        absmin = [0 for _ in xrange(abs_count)]782        absmax = [0 for _ in xrange(abs_count)]783        absmax[absCodes["ABS_X"]] = self._maxX784        absmax[absCodes["ABS_Y"]] = self._maxY785        if maxPressure != None:786            self._maxPressure = maxPressure787            absmax[absCodes["ABS_PRESSURE"]] = self._maxPressure788        absmax[absCodes["ABS_MT_SLOT"]] = 16789        absmax[absCodes["ABS_MT_TRACKING_ID"]] = 0x0fffffff790        absmax[absCodes["ABS_MT_POSITION_X"]] = self._maxX791        absmax[absCodes["ABS_MT_POSITION_Y"]] = self._maxY792        self._multiTouch = multiTouch793        self.startCreating(name, vendor, product, version,794                           absmin=absmin, absmax=absmax)795        self.addEvent("EV_KEY")796        self.addEvent("EV_ABS")797        self.addEvent("EV_SYN")798        self.addKey("BTN_TOUCH")799        self.addAbs("ABS_X")800        self.addAbs("ABS_Y")801        if self._maxPressure != None:802            self.addAbs("ABS_PRESSURE")803        if self._multiTouch:804            self.addAbs("ABS_MT_SLOT")805            self.addAbs("ABS_MT_TRACKING_ID")806            self.addAbs("ABS_MT_POSITION_X")807            self.addAbs("ABS_MT_POSITION_Y")808        self.finishCreating()809        return self810    def open(self, filename):811        InputDevice.open(self, filename)812        # detect touch device capabilities and max values813        # nfo is struct input_absinfo814        nfo = array.array('i', range(6))815        fcntl.ioctl(self._fd, EVIOCGABS(absCodes["ABS_X"]), nfo, 1)816        self._maxX = nfo[2]817        fcntl.ioctl(self._fd, EVIOCGABS(absCodes["ABS_Y"]), nfo, 1)818        self._maxY = nfo[2]819        return self820    def setScreenSize(self, (width, height)):821        self._screenW, self._screenH = (width, height)822    def setScreenAngle(self, angle):823        self._screenA = angle824    def _angleXY(self, x, y, angle=None):825        """return x, y in screen without rotation"""826        if angle == None:827            angle = self._screenA828        sw, sh = self._screenW, self._screenH829        if angle:830            while angle < 0:831                angle += 360832            while angle > 360:833                angle -= 360834            if angle == 90:835                ax = self._screenH - y836                ay = x837                sw, sh = self._screenH, self._screenW838            elif angle == 180:839                ax = self._screenH - x840                ay = self._screenW - y841            elif angle == 270:842                ax = y843                ay = self._screenW - x844                sw, sh = self._screenH, self._screenW845            else:846                raise ValueError('Illegal screen rotation angle %s' %847                                 (self._screenA,))848        else:849            ax, ay = x, y850        return (sw, sh, ax, ay)851    def _tXY(self, x, y):852        """convert x, y to touch screen coordinates"""853        if self._screenW and self._maxX and self._screenH and self._maxY:854            w, h, x, y = self._angleXY(x, y)855            x = int((self._maxX * x) / w)856            y = int((self._maxY * y) / h)857            return (x, y)858        else:859            return (x, y)860    def absToScreenXY(self, absX, absY):861        if self._screenW and self._maxX and self._screenH and self._maxY:862            x = int(self._screenW * absX / self._maxX)863            y = int(self._screenH * absY / self._maxY)864            if self._screenA:865                _, _, x, y = self._angleXY(x, y, -self._screenA)866            return (x, y)867        else:868            return (absX, absY)869    def _startTracking(self, finger, x, y):870        self._mtTrackingId += 1871        usedSlots = set([self._mtTracking[fngr][0]872                         for fngr in self._mtTracking])873        for freeSlot in xrange(16):874            if not freeSlot in usedSlots:875                break876        else:877            raise ValueError("No free slots for multitouch")878        self._mtTracking[finger] = [freeSlot, self._mtTrackingId, x, y]879        self._sendSlot(finger)880        self.send("EV_ABS", "ABS_MT_TRACKING_ID", self._mtTrackingId)881        tx, ty = self._tXY(x, y)882        self.send("EV_ABS", "ABS_MT_POSITION_X", tx)883        self.send("EV_ABS", "ABS_MT_POSITION_Y", ty)884        return self._mtTrackingId885    def _stopTracking(self, finger):886        self._sendSlot(finger)887        self.send("EV_ABS", "ABS_MT_TRACKING_ID", -1)888        del self._mtTracking[finger]889    def _sendSlot(self, finger):890        slot = self._mtTracking[finger][0]891        self.send("EV_ABS", "ABS_MT_SLOT", slot)892    def tap(self, x, y, pressure=None):893        self.pressFinger(-1, x, y, pressure)894        self.releaseFinger(-1)895    # Compatibility API to allow using a Touch almost like a Mouse896    def move(self, x, y):897        if len(self._mtTracking.keys()) == 0:898            self._hoover = (x, y)899        else:900            finger = sorted(self._mtTracking.keys())[0]901            return self.moveFinger(finger, x, y)902    def press(self, finger):903        return self.pressFinger(finger, *self._hoover)904    def release(self, finger):905        return self.releaseFinger(finger)906    # end of compatibility API907    # Multi-touch API908    def pressFinger(self, finger, x, y, pressure=None):909        """Add a finger to current multitouch gesture. If multitouch gesture910        is not started, it starts automatically.911        """912        if self._multiTouch and not finger in self._mtTracking:913            self._startTracking(finger, x, y)914        if pressure != None and self._maxPressure != None:915            self.send("EV_ABS", "ABS_PRESSURE", pressure)916        self.send("EV_KEY", "BTN_TOUCH", 1)917        tx, ty = self._tXY(x, y)918        self.send("EV_ABS", "ABS_X", tx)919        self.send("EV_ABS", "ABS_Y", ty)920        self.sync()921    def releaseFinger(self, finger):922        """Remove a finger from current multitouch gesture. When last finger923        is raised from the screen, multitouch gesture ends."""924        if self._multiTouch:925            self._stopTracking(finger)926        self.send("EV_KEY", "BTN_TOUCH", 0)927        for fngr in self._mtTracking:928            # still some finger pressed, non-multitouch reader gets929            # coordinates from one of those930            tx, ty = self._tXY(self._mtTracking[fngr][2],931                               self._mtTracking[fngr][3])932            self.send("EV_ABS", "ABS_X", tx)933            self.send("EV_ABS", "ABS_Y", ty)934            break # only one coordinates will be sent.935        self.sync()936    def moveFinger(self, finger, x, y):937        """Move a finger in current multitouch gesture"""938        self._sendSlot(finger)939        tx, ty = self._tXY(x, y)940        if self._multiTouch:941            self.send("EV_ABS", "ABS_MT_POSITION_X", tx)942            self.send("EV_ABS", "ABS_MT_POSITION_Y", ty)943        self.send("EV_ABS", "ABS_X", tx)944        self.send("EV_ABS", "ABS_Y", ty)945        self._mtTracking[finger][2] = x # last X946        self._mtTracking[finger][3] = y # last Y947        self.sync()948class Keyboard(InputDevice):949    def __init__(self):950        InputDevice.__init__(self)951    def create(self, name="Virtual fMBT Keyboard",952               vendor=0xf4b7, product=0x4ebd, version=1):953        self.startCreating(name, vendor, product, version)954        self.addEvent("EV_KEY")955        self.addEvent("EV_SYN")956        for keyName in keyCodes:957            if keyName.startswith("KEY_"):958                self.addKey(keyCodes[keyName])959        self.finishCreating()960        return self961    def press(self, keyCodeOrName):962        # TODO: there should be different MSC_SCAN matrix location for each key963        self.send("EV_MSC", mscCodes["MSC_SCAN"], 458793)964        self.send("EV_KEY", toKeyCode(keyCodeOrName), 1)965        self.sync()966    def release(self, keyCodeOrName):967        # TODO: there should be different MSC_SCAN matrix location for each key968        self.send("EV_MSC", mscCodes["MSC_SCAN"], 458793)969        self.send("EV_KEY", toKeyCode(keyCodeOrName), 0)970        self.sync()971    def tap(self, keyCodeOrName):972        keyCode = toKeyCode(keyCodeOrName)973        self.press(keyCode)974        self.release(keyCode)975def sendInputSync(devFd):976    return sendInputEvent(devFd, 0, 0, 0)977def sendInputEvent(devFd, type_, code, value):978    t = time.time()979    t_sec = int(t)980    t_usec = int(1000000*(t-t_sec))981    rv = os.write(devFd,982                  struct.pack(struct_input_event,983                              t_sec, t_usec,984                              type_,985                              code,986                              value))987    return rv == sizeof_input_event988def eventToString(inputEvent):989    tim, tus, typ, cod, val = struct.unpack(struct_input_event, inputEvent)990    styp = eventTypesInv.get(typ, "?")991    if styp == "EV_KEY":992        scod = keyCodesInv.get(cod, "?")993    elif styp == "EV_REL":994        scod = relCodesInv.get(cod, "?")995    elif styp == "EV_ABS":996        scod = absCodesInv.get(cod, "?")997    else:998        scod = "N/A"999    if typ == 0:1000        return styp1001    else:1002        return "%8s.%s type: %4s (%5s), code: %5s (%15s) value: %8s" % \1003            (tim, str(tus).zfill(6), typ, styp, cod, scod, val)1004def queueEventsFromFile(filename, queue, lock, filterOpts):1005    if isinstance(filterOpts, dict) and "type" in filterOpts:1006        allowedTypes = set()1007        for t in filterOpts["type"]:1008            if isinstance(t, str):1009                allowedTypes.add(eventTypes[t])1010            else:1011                allowedTypes.add(t)1012    else:1013        allowedTypes = set(eventTypes.values())1014    if ("touchScreen" in filterOpts and1015        filename == filterOpts["touchScreen"].filename()):1016        touchScreen = filterOpts["touchScreen"]1017        absXCodes = set([absCodes["ABS_X"], absCodes["ABS_MT_POSITION_X"]])1018        absYCodes = set([absCodes["ABS_Y"], absCodes["ABS_MT_POSITION_Y"]])1019        absType = eventTypes["EV_ABS"]1020    else:1021        touchScreen = None1022    fd = os.open(filename, os.O_RDONLY)1023    try:1024        while 1:1025            eventData = os.read(fd, sizeof_input_event)1026            if not lock.locked():1027                return1028            if not eventData:1029                break1030            (ts, tus, typ, cod, val) = struct.unpack(struct_input_event, eventData)1031            if touchScreen and typ == absType:1032                if cod in absXCodes:1033                    val, _ = touchScreen.absToScreenXY(val, 0)1034                elif cod in absYCodes:1035                    _, val = touchScreen.absToScreenXY(0, val)1036            if typ in allowedTypes:1037                queue.put((ts, tus, typ, cod, val))1038    finally:1039        os.close(fd)1040# _g_recQL dictionary contains events being actively recorded1041# - key: filename, like "/dev/input/event0"1042# - value: (eventQueue, lock)1043# A thread is filling eventQueue with events from filename.1044# Once the lock is released, the thread will quit without writing1045# anything to the eventQueue anymore.1046_g_recQL = {}1047_g_unfetchedEvents = []1048def queueEventsFromFiles(listOfFilenames, filterOpts):1049    global _g_recQL1050    for filename in listOfFilenames:1051        q = Queue.Queue()1052        l = thread.allocate_lock()1053        l.acquire()1054        if filename in _g_recQL:1055            # previous reader thread should quit1056            _g_recQL[filename][1].release()1057        thread.start_new_thread(1058            queueEventsFromFile, (filename, q, l, filterOpts))1059        _g_recQL[filename] = (q, l)1060def startQueueingEvents(filterOpts):1061    refreshDeviceInfo()1062    if len(_g_recQL) > 0:1063        # already queueing, restart1064        stopQueueingEvents()1065    if "device" in filterOpts:1066        deviceFiles = []1067        for n in filterOpts["device"]:1068            if n in _g_deviceNames:1069                deviceFiles.append(_g_deviceNames[n])1070            elif os.access(n, os.R_OK):1071                deviceFiles.append(n)1072        del filterOpts["device"]1073    else:1074        deviceFiles = glob.glob("/dev/input/event[0-9]*")1075    queueEventsFromFiles(deviceFiles, filterOpts)1076def stopQueueingEvents():1077    global _g_recQL1078    global _g_unfetchedEvents1079    for filename in _g_recQL:1080        _g_recQL[filename][1].release()1081    _g_unfetchedEvents = fetchQueuedEvents()1082    _g_recQL = {}1083def fetchQueuedEvents():1084    global _g_unfetchedEvents1085    if len(_g_recQL) == 0: # no active recording1086        rv = _g_unfetchedEvents1087        _g_unfetchedEvents = []1088        return rv1089    else: # events are being recorded1090        events = []1091        for filename in _g_recQL:1092            events.extend(fetchQueuedEventsFromFile(filename))1093        return events1094def fetchQueuedEventsFromFile(filename):1095    events = []1096    q = _g_recQL[filename][0]1097    deviceName = toEventDeviceName(filename)1098    while 1:1099        try:1100            ts, tus, typ, cod, val = q.get_nowait()1101            events.append((deviceName, ts + tus/1000000.0, typ, cod, val))1102        except Queue.Empty:1103            break1104    return events1105def printEventsFromFile(filename):1106    fd = os.open(filename, os.O_RDONLY)1107    sdev = filename.split("/")[-1]1108    try:1109        while 1:1110            inputEvent = os.read(fd, sizeof_input_event)1111            if not inputEvent:...
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