class BrowserBrick(BaseComponents.BlissWidget):
def __init__(self, *args):
BaseComponents.BlissWidget.__init__(self, *args)
#map displayed string in the history list -> actual file path
self.history_map = dict()
self.layout = QVBoxLayout(self)
self.defineSlot('load_file', ())
self.defineSlot('login_changed', ())
self.addProperty('mnemonic', 'string', '')
self.addProperty('history', 'string', '', hidden=True)
self.addProperty('sessions ttl (in days)', 'integer', '30')
#make sure the history property is a pickled dict
try:
hist = pickle.loads(self.getProperty('history').getValue())
except: # EOFError if the string is empty but let's not count on it
self.getProperty('history').setValue(pickle.dumps(dict()))
# maybe defer that for later
self.cleanup_history()
self.main_layout = QSplitter(self)
self.main_layout.setSizePolicy(QSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding))
# left part of the splitter
self.history_box = QVBox(self.main_layout)
self.history_box.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
self.sort_order = True
self.sort_col = None
self.history = QTable(self.history_box)
self.history.setSizePolicy(QSizePolicy(QSizePolicy.Minimum, QSizePolicy.MinimumExpanding))
self.history.setSelectionMode(QTable.SingleRow)
self.history.setNumCols(3)
self.history.verticalHeader().hide()
self.history.setLeftMargin(0)
self.history.setSorting(False)
QObject.connect(self.history,
SIGNAL('currentChanged(int,int)'),
self.history_changed)
#by default sorting only sorts the columns and not whole rows.
#let's reimplement that
QObject.connect(self.history.horizontalHeader(),
SIGNAL('clicked(int)'),
self.sort_column)
header = self.history.horizontalHeader()
header.setLabel(0, 'Time and date')
header.setLabel(1, 'Prefix')
header.setLabel(2, 'Run number')
self.clear_history_button = QPushButton('Clear history', self.history_box)
self.history_box.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Fixed)
QObject.connect(self.clear_history_button, SIGNAL('clicked()'),
self.clear_history)
# Right part of the splitter
self.browser_box = QWidget(self.main_layout)
QVBoxLayout(self.browser_box)
self.browser_box.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)
self.top_layout = QHBoxLayout(self.browser_box)
self.back_button = QToolButton(self.browser_box)
self.back_button.setIconSet(QIconSet(Icons.load('Left2')))
self.back_button.setTextLabel('Back')
self.back_button.setUsesTextLabel(True)
self.back_button.setTextPosition(QToolButton.BelowIcon)
self.back_button.setSizePolicy(QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum))
self.forward_button = QToolButton(self.browser_box)
self.forward_button.setIconSet(QIconSet(Icons.load('Right2')))
self.forward_button.setTextLabel('Forward')
self.forward_button.setUsesTextLabel(True)
self.forward_button.setTextPosition(QToolButton.BelowIcon)
self.forward_button.setSizePolicy(QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum))
self.top_layout.addWidget(self.back_button)
self.top_layout.addWidget(self.forward_button)
self.browser_box.layout().addLayout(self.top_layout)
self.browser = QTextBrowser(self.browser_box)
self.browser.setReadOnly(True)
self.browser_box.layout().addWidget(self.browser)
self.layout.addWidget(self.main_layout)
#initially disabled
self.forward_button.setEnabled(False)
self.back_button.setEnabled(False)
#connections
QObject.connect(self.browser, SIGNAL('backwardAvailable(bool)'),
self.back_button.setEnabled)
QObject.connect(self.browser, SIGNAL('forwardAvailable(bool)'),
self.forward_button.setEnabled)
QObject.connect(self.back_button, SIGNAL('clicked()'),
self.browser.backward)
QObject.connect(self.forward_button, SIGNAL('clicked()'),
self.browser.forward)
self.edna = None
# resize the splitter to something like 1/4-3/4
# width = self.main_layout.width()
# left = width / 4.0
# right = width - left
# logging.debug('setting splitter sizes to %d and %d', left, right)
# self.main_layout.setSizes([left, right])
def sort_column(self, col_number):
logging.debug('%s: sorting with column %d', self, col_number)
if col_number == self.sort_column:
# switch the sort order
self.sort_order = self.sort_order ^ True
else:
self.sort_order = True #else, ascending
self.sort_column = col_number
self.history.sortColumn(col_number, self.sort_order, True)
# put the right decoration on the header label
if self.sort_order:
direction = Qt.Ascending
else:
direction = Qt.Descending
self.history.horizontalHeader().setSortIndicator(col_number, direction)
def load_file(self, path):
if self.browser.mimeSourceFactory().data(path) == None:
self.browser.setText('<center>FILE NOT FOUND</center>')
else:
self.browser.setSource(abspath(path))
def history_changed(self, row, col):
logging.debug('history elem selected: %d:%d', row, col)
index = (str(self.history.text(row,0)),
str(self.history.text(row,1)),
str(self.history.text(row,2)))
try:
path = self.history_map[index]
self.load_file(path)
except KeyError as e:
# can happen when qt sends us the signal with
# null data and we get the key ("","","")
pass
def new_html(self, html_path, image_prefix, run_number):
logging.getLogger().debug('got a new html page: %s, prefix: %r, run number: %s', html_path, image_prefix, run_number)
# prepend the time and date to the path we just got so
# the history is more readable
time_string = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
index = (time_string, str(image_prefix), str(run_number))
self.history_map[index] = html_path
# synchronize the history prop
if self.current_user is not None:
whole_history = pickle.loads(self.getProperty('history').getValue())
whole_history[self.current_user] = self.history_map
self.getProperty('history').setValue(pickle.dumps(whole_history))
self.history.insertRows(self.history.numRows())
logging.debug('numRows() is %d', self.history.numRows())
rows = self.history.numRows() - 1
self.history.setText(rows, 0, QString(time_string))
self.history.setText(rows, 1, QString(str(image_prefix)))
self.history.setText(rows, 2, QString(str(run_number)))
logging.debug('numRows() is %d', self.history.numRows())
self.load_file(html_path)
def clear_history(self):
self.history_map.clear()
self.history.setNumRows(0)
def propertyChanged(self, prop, oldval, newval):
if prop == 'mnemonic':
logging.getLogger().debug('BrowserBrick: using edna object %s', newval)
if self.edna is not None:
self.disconnect(self.edna, PYSIGNAL('newEDNAHTML'), self.new_html)
self.edna = self.getHardwareObject(newval)
logging.getLogger().debug('edna object is now: %s', self.edna)
self.connect(self.edna, PYSIGNAL('newEDNAHTML'), self.new_html)
def run(self):
pass
def login_changed(self, session_id,prop_code=None,prop_number=None,prop_id=None,expiration_time=0):
logging.debug('BrowserBrick::login_changed: login changed to %r', session_id)
if session_id is None:
# user logged out
logging.debug('user logged out')
self.current_user = None
else:
self.current_user = (prop_code, prop_number)
logging.debug('current user is now %r', self.current_user)
self.clear_all()
self.fill_history_for(self.current_user)
def clear_all(self):
self.clear_history()
self.browser.setText('')
def fill_history_for(self, user):
if user is None: return
logging.debug('loading history for user %s', user)
whole_history = pickle.loads(self.getProperty('history').getValue())
try:
self.history_map = whole_history[user]
except KeyError:
#user has no history yet
self.history_map = dict()
for k,v in self.history_map.items():
self.history.insertRows(self.history.numRows())
logging.debug('numRows() is %d', self.history.numRows())
rows = self.history.numRows() - 1
self.history.setText(rows, 0, k[0])
self.history.setText(rows, 1, k[1])
self.history.setText(rows, 2, k[2])
def cleanup_history(self):
histories = pickle.loads(self.getProperty('history').getValue())
sessions_ttl = self.getProperty('sessions ttl (in days)').getValue()
limit_date = datetime.now() - timedelta(sessions_ttl)
#we're mutating the dict so do not use iteritems() just to be sure
for user in list(histories.keys()):
history = histories[user]
#get the keys where the date is more recent than the limit date
valid_keys = [x for x in list(history.keys())
if datetime.strptime(x[0], '%Y-%m-%d %H:%M:%S') > limit_date]
#NB: old format was "%a, %d %b %Y %H:%M:%S"
if len(valid_keys) != len(history):
# some entries are too old, copy only the ones that are recent enough
new_hist = dict((k,history[k]) for k in valid_keys)
logging.debug('BrowserBrick: removed %d entries from saved history for user %s',
len(history) - len(valid_keys),
user)
histories[user] = new_hist
self.getProperty('history').setValue(pickle.dumps(histories))
class BrowserBrick(BaseComponents.BlissWidget):
def __init__(self, *args):
BaseComponents.BlissWidget.__init__(self, *args)
#map displayed string in the history list -> actual file path
self.history_map = dict()
self.layout = QVBoxLayout(self)
self.defineSlot('load_file', ())
self.defineSlot('login_changed', ())
self.addProperty('mnemonic', 'string', '')
self.addProperty('history', 'string', '', hidden=True)
self.addProperty('sessions ttl (in days)', 'integer', '30')
#make sure the history property is a pickled dict
try:
hist = pickle.loads(self.getProperty('history').getValue())
except: # EOFError if the string is empty but let's not count on it
self.getProperty('history').setValue(pickle.dumps(dict()))
# maybe defer that for later
self.cleanup_history()
self.main_layout = QSplitter(self)
self.main_layout.setSizePolicy(
QSizePolicy(QSizePolicy.MinimumExpanding,
QSizePolicy.MinimumExpanding))
# left part of the splitter
self.history_box = QVBox(self.main_layout)
self.history_box.setSizePolicy(QSizePolicy.Preferred,
QSizePolicy.Preferred)
self.sort_order = True
self.sort_col = None
self.history = QTable(self.history_box)
self.history.setSizePolicy(
QSizePolicy(QSizePolicy.Minimum, QSizePolicy.MinimumExpanding))
self.history.setSelectionMode(QTable.SingleRow)
self.history.setNumCols(3)
self.history.verticalHeader().hide()
self.history.setLeftMargin(0)
self.history.setSorting(False)
QObject.connect(self.history, SIGNAL('currentChanged(int,int)'),
self.history_changed)
#by default sorting only sorts the columns and not whole rows.
#let's reimplement that
QObject.connect(self.history.horizontalHeader(),
SIGNAL('clicked(int)'), self.sort_column)
header = self.history.horizontalHeader()
header.setLabel(0, 'Time and date')
header.setLabel(1, 'Prefix')
header.setLabel(2, 'Run number')
self.clear_history_button = QPushButton('Clear history',
self.history_box)
self.history_box.setSizePolicy(QSizePolicy.Preferred,
QSizePolicy.Fixed)
QObject.connect(self.clear_history_button, SIGNAL('clicked()'),
self.clear_history)
# Right part of the splitter
self.browser_box = QWidget(self.main_layout)
QVBoxLayout(self.browser_box)
self.browser_box.setSizePolicy(QSizePolicy.MinimumExpanding,
QSizePolicy.MinimumExpanding)
self.top_layout = QHBoxLayout(self.browser_box)
self.back_button = QToolButton(self.browser_box)
self.back_button.setIconSet(QIconSet(Icons.load('Left2')))
self.back_button.setTextLabel('Back')
self.back_button.setUsesTextLabel(True)
self.back_button.setTextPosition(QToolButton.BelowIcon)
self.back_button.setSizePolicy(
QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum))
self.forward_button = QToolButton(self.browser_box)
self.forward_button.setIconSet(QIconSet(Icons.load('Right2')))
self.forward_button.setTextLabel('Forward')
self.forward_button.setUsesTextLabel(True)
self.forward_button.setTextPosition(QToolButton.BelowIcon)
self.forward_button.setSizePolicy(
QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum))
self.top_layout.addWidget(self.back_button)
self.top_layout.addWidget(self.forward_button)
self.browser_box.layout().addLayout(self.top_layout)
self.browser = QTextBrowser(self.browser_box)
self.browser.setReadOnly(True)
self.browser_box.layout().addWidget(self.browser)
self.layout.addWidget(self.main_layout)
#initially disabled
self.forward_button.setEnabled(False)
self.back_button.setEnabled(False)
#connections
QObject.connect(self.browser, SIGNAL('backwardAvailable(bool)'),
self.back_button.setEnabled)
QObject.connect(self.browser, SIGNAL('forwardAvailable(bool)'),
self.forward_button.setEnabled)
QObject.connect(self.back_button, SIGNAL('clicked()'),
self.browser.backward)
QObject.connect(self.forward_button, SIGNAL('clicked()'),
self.browser.forward)
self.edna = None
# resize the splitter to something like 1/4-3/4
# width = self.main_layout.width()
# left = width / 4.0
# right = width - left
# logging.debug('setting splitter sizes to %d and %d', left, right)
# self.main_layout.setSizes([left, right])
def sort_column(self, col_number):
logging.debug('%s: sorting with column %d', self, col_number)
if col_number == self.sort_column:
# switch the sort order
self.sort_order = self.sort_order ^ True
else:
self.sort_order = True #else, ascending
self.sort_column = col_number
self.history.sortColumn(col_number, self.sort_order, True)
# put the right decoration on the header label
if self.sort_order:
direction = Qt.Ascending
else:
direction = Qt.Descending
self.history.horizontalHeader().setSortIndicator(col_number, direction)
def load_file(self, path):
if self.browser.mimeSourceFactory().data(path) == None:
self.browser.setText('<center>FILE NOT FOUND</center>')
else:
self.browser.setSource(abspath(path))
def history_changed(self, row, col):
logging.debug('history elem selected: %d:%d', row, col)
index = (str(self.history.text(row, 0)), str(self.history.text(row,
1)),
str(self.history.text(row, 2)))
try:
path = self.history_map[index]
self.load_file(path)
except KeyError as e:
# can happen when qt sends us the signal with
# null data and we get the key ("","","")
pass
def new_html(self, html_path, image_prefix, run_number):
logging.getLogger().debug(
'got a new html page: %s, prefix: %r, run number: %s', html_path,
image_prefix, run_number)
# prepend the time and date to the path we just got so
# the history is more readable
time_string = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
index = (time_string, str(image_prefix), str(run_number))
self.history_map[index] = html_path
# synchronize the history prop
if self.current_user is not None:
whole_history = pickle.loads(
self.getProperty('history').getValue())
whole_history[self.current_user] = self.history_map
self.getProperty('history').setValue(pickle.dumps(whole_history))
self.history.insertRows(self.history.numRows())
logging.debug('numRows() is %d', self.history.numRows())
rows = self.history.numRows() - 1
self.history.setText(rows, 0, QString(time_string))
self.history.setText(rows, 1, QString(str(image_prefix)))
self.history.setText(rows, 2, QString(str(run_number)))
logging.debug('numRows() is %d', self.history.numRows())
self.load_file(html_path)
def clear_history(self):
self.history_map.clear()
self.history.setNumRows(0)
def propertyChanged(self, prop, oldval, newval):
if prop == 'mnemonic':
logging.getLogger().debug('BrowserBrick: using edna object %s',
newval)
if self.edna is not None:
self.disconnect(self.edna, PYSIGNAL('newEDNAHTML'),
self.new_html)
self.edna = self.getHardwareObject(newval)
logging.getLogger().debug('edna object is now: %s', self.edna)
self.connect(self.edna, PYSIGNAL('newEDNAHTML'), self.new_html)
def run(self):
pass
def login_changed(self,
session_id,
prop_code=None,
prop_number=None,
prop_id=None,
expiration_time=0):
logging.debug('BrowserBrick::login_changed: login changed to %r',
session_id)
if session_id is None:
# user logged out
logging.debug('user logged out')
self.current_user = None
else:
self.current_user = (prop_code, prop_number)
logging.debug('current user is now %r', self.current_user)
self.clear_all()
self.fill_history_for(self.current_user)
def clear_all(self):
self.clear_history()
self.browser.setText('')
def fill_history_for(self, user):
if user is None: return
logging.debug('loading history for user %s', user)
whole_history = pickle.loads(self.getProperty('history').getValue())
try:
self.history_map = whole_history[user]
except KeyError:
#user has no history yet
self.history_map = dict()
for k, v in self.history_map.items():
self.history.insertRows(self.history.numRows())
logging.debug('numRows() is %d', self.history.numRows())
rows = self.history.numRows() - 1
self.history.setText(rows, 0, k[0])
self.history.setText(rows, 1, k[1])
self.history.setText(rows, 2, k[2])
def cleanup_history(self):
histories = pickle.loads(self.getProperty('history').getValue())
sessions_ttl = self.getProperty('sessions ttl (in days)').getValue()
limit_date = datetime.now() - timedelta(sessions_ttl)
#we're mutating the dict so do not use iteritems() just to be sure
for user in list(histories.keys()):
history = histories[user]
#get the keys where the date is more recent than the limit date
valid_keys = [
x for x in list(history.keys())
if datetime.strptime(x[0], '%Y-%m-%d %H:%M:%S') > limit_date
]
#NB: old format was "%a, %d %b %Y %H:%M:%S"
if len(valid_keys) != len(history):
# some entries are too old, copy only the ones that are recent enough
new_hist = dict((k, history[k]) for k in valid_keys)
logging.debug(
'BrowserBrick: removed %d entries from saved history for user %s',
len(history) - len(valid_keys), user)
histories[user] = new_hist
self.getProperty('history').setValue(pickle.dumps(histories))
