def start(self, messageElement):
Stream.clear_streams()
process = QProcess()
self.process = process
self.messageElement = messageElement
process.setProcessChannelMode(QProcess.MergedChannels)
process.start("livestreamer", self.arguments)
process.readyReadStandardOutput.connect(self.show_messages)
Stream.ALL_STREAMS.append(self)
def start(self, messageElement):
Stream.clear_streams()
process = QProcess()
self.process = process
self.messageElement = messageElement
process.setProcessChannelMode(QProcess.MergedChannels)
process.start('livestreamer', self.arguments)
process.readyReadStandardOutput.connect(self.show_messages)
Stream.ALL_STREAMS.append(self)
class TasksPool(QObject):
"""
This class allows you to add_task() for execution queue. Launch_list() starts the queue.
"""
task_done = Signal()
return_signal = Signal(str)
def __init__(self):
super(TasksPool, self).__init__()
self.tasks_pool = []
self.process = None
if not QApplication.instance():
self.qapp = QApplication([])
def add_task(self, command):
"""
:type command: str
:param command: A console command with arguments
Adds a task to the pool for later execution
"""
self.tasks_pool.append(command)
def __execute_task(self, task):
"""
:param task: Is a string used to start a process
"""
self.process = QProcess(self)
self.process.finished.connect(
lambda *x: logger.debug(task + ' reports complete'))
self.process.finished.connect(lambda *x: self.return_signal.emit(
'►' + task + '◄reports complete'))
self.process.finished.connect(self.task_done)
# self.process.readyRead.connect(lambda *x: print(str(self.process.readAll())))
self.process.readyRead.connect(
lambda *x: self.return_signal.emit(str(self.process.readAll())))
self.process.setProcessChannelMode(QProcess.MergedChannels)
self.process.start(task)
def launch_list(self):
"""
Starts the execution of the queue in consecutive order, waiting for previous process to finish
"""
for task in self.tasks_pool:
loop = QEventLoop()
self.task_done.connect(loop.quit)
self.__execute_task(task)
loop.exec_()
def is_online( self, tableWidgetItem ): Stream.clear_streams() process = QProcess() self.process = process self.table_widget_item = tableWidgetItem arguments = [ '--json' ] + self.arguments process.setProcessChannelMode( QProcess.MergedChannels ) process.start( 'livestreamer', arguments ) process.readyReadStandardOutput.connect( self.is_online_callback ) itemWidget = self.table_widget_item tableWidget = itemWidget.tableWidget() tableWidget.setCellWidget( itemWidget.row(), 0, MovieWidget( fullpath( 'icons/loading_16.gif' ), tableWidget) ) Stream.ALL_STREAMS.append( self )
def is_online(self, tableWidgetItem):
Stream.clear_streams()
process = QProcess()
self.process = process
self.table_widget_item = tableWidgetItem
arguments = ['--json'] + self.arguments
process.setProcessChannelMode(QProcess.MergedChannels)
process.start('livestreamer', arguments)
process.readyReadStandardOutput.connect(self.is_online_callback)
tableWidgetItem.setText('Checking..')
Stream.ALL_STREAMS.append(self)
def start( self, messageElement, tableWidgetItem ): Stream.clear_streams() process = QProcess() self.process = process self.messageElement = messageElement row = tableWidgetItem.row() tableWidget = tableWidgetItem.tableWidget() tableWidget.setCellWidget( tableWidgetItem.row(), 0, ImageWidget( fullpath( 'icons/play_16.png' ), tableWidget) ) tableWidgetItem = tableWidget.item( row, 0 ) process.setProcessChannelMode( QProcess.MergedChannels ) process.start( 'livestreamer', self.arguments ) process.readyReadStandardOutput.connect( self.show_messages ) process.finished.connect( lambda: self.is_online( tableWidgetItem ) ) Stream.ALL_STREAMS.append( self )
class TasksPool(QObject):
startNextTaskSignal = Signal()
allTasksCompleteSignal = Signal()
def __init__(self):
super(TasksPool, self).__init__()
self.tasks_pool = []
self.process = QProcess()
self.startNextTaskSignal.connect(self.execute_task)
self.allTasksCompleteSignal.connect(self.tasks_complete)
self.source = ''
def add_task(self, command):
self.tasks_pool.append(command)
self.startNextTaskSignal.emit()
def execute_task(self):
print('Start next?')
if self.process.isOpen():
self.process.waitForFinished()
if not self.tasks_pool:
self.allTasksCompleteSignal.emit()
return
self.process = QProcess()
self.process.finished.connect(
lambda *x: QTimer.singleShot(1000, self.startNextTaskSignal.emit))
self.process.setProcessChannelMode(QProcess.MergedChannels)
self.process.readyRead.connect(self.process_output)
next_task = self.tasks_pool.pop(0)
print('NEXT TASK', next_task)
self.process.start(next_task)
def process_output(self):
output = self.process.readAll()
output = str(output).strip()
if output:
print(output)
def tasks_complete(self):
print('ALL TASKS COMPLETE')
def is_online(self, tableWidgetItem):
Stream.clear_streams()
process = QProcess()
self.process = process
self.table_widget_item = tableWidgetItem
arguments = ["--json"] + self.arguments
process.setProcessChannelMode(QProcess.MergedChannels)
process.start("livestreamer", arguments)
process.readyReadStandardOutput.connect(self.is_online_callback)
brush = QBrush(Qt.SolidPattern)
color = QColor(255, 255, 255) # white
brush.setColor(color)
tableWidgetItem.setBackground(brush)
tableWidgetItem.setText("Checking..")
Stream.ALL_STREAMS.append(self)
def is_online(self, tableWidgetItem):
Stream.clear_streams()
process = QProcess()
self.process = process
self.table_widget_item = tableWidgetItem
arguments = ['--json'] + self.arguments
process.setProcessChannelMode(QProcess.MergedChannels)
process.start('livestreamer', arguments)
process.readyReadStandardOutput.connect(self.is_online_callback)
brush = QBrush(Qt.SolidPattern)
color = QColor(255, 255, 255) #white
brush.setColor(color)
tableWidgetItem.setBackground(brush)
tableWidgetItem.setText('Checking..')
Stream.ALL_STREAMS.append(self)