/usr/lib/python3/dist-packages/IPython/qt/console/mainwindow.py is in ipython3-qtconsole 2.3.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 | """The Qt MainWindow for the QtConsole
This is a tabbed pseudo-terminal of IPython sessions, with a menu bar for
common actions.
Authors:
* Evan Patterson
* Min RK
* Erik Tollerud
* Fernando Perez
* Bussonnier Matthias
* Thomas Kluyver
* Paul Ivanov
"""
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
# stdlib imports
import json
import re
import sys
import webbrowser
from threading import Thread
# System library imports
from IPython.external.qt import QtGui,QtCore
from IPython.core.magic import magic_escapes
def background(f):
"""call a function in a simple thread, to prevent blocking"""
t = Thread(target=f)
t.start()
return t
#-----------------------------------------------------------------------------
# Classes
#-----------------------------------------------------------------------------
class MainWindow(QtGui.QMainWindow):
#---------------------------------------------------------------------------
# 'object' interface
#---------------------------------------------------------------------------
_magic_menu_dict = {}
def __init__(self, app,
confirm_exit=True,
new_frontend_factory=None, slave_frontend_factory=None,
):
""" Create a tabbed MainWindow for managing IPython FrontendWidgets
Parameters
----------
app : reference to QApplication parent
confirm_exit : bool, optional
Whether we should prompt on close of tabs
new_frontend_factory : callable
A callable that returns a new IPythonWidget instance, attached to
its own running kernel.
slave_frontend_factory : callable
A callable that takes an existing IPythonWidget, and returns a new
IPythonWidget instance, attached to the same kernel.
"""
super(MainWindow, self).__init__()
self._kernel_counter = 0
self._app = app
self.confirm_exit = confirm_exit
self.new_frontend_factory = new_frontend_factory
self.slave_frontend_factory = slave_frontend_factory
self.tab_widget = QtGui.QTabWidget(self)
self.tab_widget.setDocumentMode(True)
self.tab_widget.setTabsClosable(True)
self.tab_widget.tabCloseRequested[int].connect(self.close_tab)
self.setCentralWidget(self.tab_widget)
# hide tab bar at first, since we have no tabs:
self.tab_widget.tabBar().setVisible(False)
# prevent focus in tab bar
self.tab_widget.setFocusPolicy(QtCore.Qt.NoFocus)
def update_tab_bar_visibility(self):
""" update visibility of the tabBar depending of the number of tab
0 or 1 tab, tabBar hidden
2+ tabs, tabBar visible
send a self.close if number of tab ==0
need to be called explicitly, or be connected to tabInserted/tabRemoved
"""
if self.tab_widget.count() <= 1:
self.tab_widget.tabBar().setVisible(False)
else:
self.tab_widget.tabBar().setVisible(True)
if self.tab_widget.count()==0 :
self.close()
@property
def next_kernel_id(self):
"""constantly increasing counter for kernel IDs"""
c = self._kernel_counter
self._kernel_counter += 1
return c
@property
def active_frontend(self):
return self.tab_widget.currentWidget()
def create_tab_with_new_frontend(self):
"""create a new frontend and attach it to a new tab"""
widget = self.new_frontend_factory()
self.add_tab_with_frontend(widget)
def create_tab_with_current_kernel(self):
"""create a new frontend attached to the same kernel as the current tab"""
current_widget = self.tab_widget.currentWidget()
current_widget_index = self.tab_widget.indexOf(current_widget)
current_widget_name = self.tab_widget.tabText(current_widget_index)
widget = self.slave_frontend_factory(current_widget)
if 'slave' in current_widget_name:
# don't keep stacking slaves
name = current_widget_name
else:
name = '(%s) slave' % current_widget_name
self.add_tab_with_frontend(widget,name=name)
def close_tab(self,current_tab):
""" Called when you need to try to close a tab.
It takes the number of the tab to be closed as argument, or a reference
to the widget inside this tab
"""
# let's be sure "tab" and "closing widget" are respectively the index
# of the tab to close and a reference to the frontend to close
if type(current_tab) is not int :
current_tab = self.tab_widget.indexOf(current_tab)
closing_widget=self.tab_widget.widget(current_tab)
# when trying to be closed, widget might re-send a request to be
# closed again, but will be deleted when event will be processed. So
# need to check that widget still exists and skip if not. One example
# of this is when 'exit' is sent in a slave tab. 'exit' will be
# re-sent by this function on the master widget, which ask all slave
# widgets to exit
if closing_widget==None:
return
#get a list of all slave widgets on the same kernel.
slave_tabs = self.find_slave_widgets(closing_widget)
keepkernel = None #Use the prompt by default
if hasattr(closing_widget,'_keep_kernel_on_exit'): #set by exit magic
keepkernel = closing_widget._keep_kernel_on_exit
# If signal sent by exit magic (_keep_kernel_on_exit, exist and not None)
# we set local slave tabs._hidden to True to avoid prompting for kernel
# restart when they get the signal. and then "forward" the 'exit'
# to the main window
if keepkernel is not None:
for tab in slave_tabs:
tab._hidden = True
if closing_widget in slave_tabs:
try :
self.find_master_tab(closing_widget).execute('exit')
except AttributeError:
self.log.info("Master already closed or not local, closing only current tab")
self.tab_widget.removeTab(current_tab)
self.update_tab_bar_visibility()
return
kernel_client = closing_widget.kernel_client
kernel_manager = closing_widget.kernel_manager
if keepkernel is None and not closing_widget._confirm_exit:
# don't prompt, just terminate the kernel if we own it
# or leave it alone if we don't
keepkernel = closing_widget._existing
if keepkernel is None: #show prompt
if kernel_client and kernel_client.channels_running:
title = self.window().windowTitle()
cancel = QtGui.QMessageBox.Cancel
okay = QtGui.QMessageBox.Ok
if closing_widget._may_close:
msg = "You are closing the tab : "+'"'+self.tab_widget.tabText(current_tab)+'"'
info = "Would you like to quit the Kernel and close all attached Consoles as well?"
justthis = QtGui.QPushButton("&No, just this Tab", self)
justthis.setShortcut('N')
closeall = QtGui.QPushButton("&Yes, close all", self)
closeall.setShortcut('Y')
# allow ctrl-d ctrl-d exit, like in terminal
closeall.setShortcut('Ctrl+D')
box = QtGui.QMessageBox(QtGui.QMessageBox.Question,
title, msg)
box.setInformativeText(info)
box.addButton(cancel)
box.addButton(justthis, QtGui.QMessageBox.NoRole)
box.addButton(closeall, QtGui.QMessageBox.YesRole)
box.setDefaultButton(closeall)
box.setEscapeButton(cancel)
pixmap = QtGui.QPixmap(self._app.icon.pixmap(QtCore.QSize(64,64)))
box.setIconPixmap(pixmap)
reply = box.exec_()
if reply == 1: # close All
for slave in slave_tabs:
background(slave.kernel_client.stop_channels)
self.tab_widget.removeTab(self.tab_widget.indexOf(slave))
closing_widget.execute("exit")
self.tab_widget.removeTab(current_tab)
background(kernel_client.stop_channels)
elif reply == 0: # close Console
if not closing_widget._existing:
# Have kernel: don't quit, just close the tab
closing_widget.execute("exit True")
self.tab_widget.removeTab(current_tab)
background(kernel_client.stop_channels)
else:
reply = QtGui.QMessageBox.question(self, title,
"Are you sure you want to close this Console?"+
"\nThe Kernel and other Consoles will remain active.",
okay|cancel,
defaultButton=okay
)
if reply == okay:
self.tab_widget.removeTab(current_tab)
elif keepkernel: #close console but leave kernel running (no prompt)
self.tab_widget.removeTab(current_tab)
background(kernel_client.stop_channels)
else: #close console and kernel (no prompt)
self.tab_widget.removeTab(current_tab)
if kernel_client and kernel_client.channels_running:
for slave in slave_tabs:
background(slave.kernel_client.stop_channels)
self.tab_widget.removeTab(self.tab_widget.indexOf(slave))
if kernel_manager:
kernel_manager.shutdown_kernel()
background(kernel_client.stop_channels)
self.update_tab_bar_visibility()
def add_tab_with_frontend(self,frontend,name=None):
""" insert a tab with a given frontend in the tab bar, and give it a name
"""
if not name:
name = 'kernel %i' % self.next_kernel_id
self.tab_widget.addTab(frontend,name)
self.update_tab_bar_visibility()
self.make_frontend_visible(frontend)
frontend.exit_requested.connect(self.close_tab)
def next_tab(self):
self.tab_widget.setCurrentIndex((self.tab_widget.currentIndex()+1))
def prev_tab(self):
self.tab_widget.setCurrentIndex((self.tab_widget.currentIndex()-1))
def make_frontend_visible(self,frontend):
widget_index=self.tab_widget.indexOf(frontend)
if widget_index > 0 :
self.tab_widget.setCurrentIndex(widget_index)
def find_master_tab(self,tab,as_list=False):
"""
Try to return the frontend that owns the kernel attached to the given widget/tab.
Only finds frontend owned by the current application. Selection
based on port of the kernel might be inaccurate if several kernel
on different ip use same port number.
This function does the conversion tabNumber/widget if needed.
Might return None if no master widget (non local kernel)
Will crash IPython if more than 1 masterWidget
When asList set to True, always return a list of widget(s) owning
the kernel. The list might be empty or containing several Widget.
"""
#convert from/to int/richIpythonWidget if needed
if isinstance(tab, int):
tab = self.tab_widget.widget(tab)
km=tab.kernel_client
#build list of all widgets
widget_list = [self.tab_widget.widget(i) for i in range(self.tab_widget.count())]
# widget that are candidate to be the owner of the kernel does have all the same port of the curent widget
# And should have a _may_close attribute
filtered_widget_list = [ widget for widget in widget_list if
widget.kernel_client.connection_file == km.connection_file and
hasattr(widget,'_may_close') ]
# the master widget is the one that may close the kernel
master_widget= [ widget for widget in filtered_widget_list if widget._may_close]
if as_list:
return master_widget
assert(len(master_widget)<=1 )
if len(master_widget)==0:
return None
return master_widget[0]
def find_slave_widgets(self,tab):
"""return all the frontends that do not own the kernel attached to the given widget/tab.
Only find frontends owned by the current application. Selection
based on connection file of the kernel.
This function does the conversion tabNumber/widget if needed.
"""
#convert from/to int/richIpythonWidget if needed
if isinstance(tab, int):
tab = self.tab_widget.widget(tab)
km=tab.kernel_client
#build list of all widgets
widget_list = [self.tab_widget.widget(i) for i in range(self.tab_widget.count())]
# widget that are candidate not to be the owner of the kernel does have all the same port of the curent widget
filtered_widget_list = ( widget for widget in widget_list if
widget.kernel_client.connection_file == km.connection_file)
# Get a list of all widget owning the same kernel and removed it from
# the previous cadidate. (better using sets ?)
master_widget_list = self.find_master_tab(tab, as_list=True)
slave_list = [widget for widget in filtered_widget_list if widget not in master_widget_list]
return slave_list
# Populate the menu bar with common actions and shortcuts
def add_menu_action(self, menu, action, defer_shortcut=False):
"""Add action to menu as well as self
So that when the menu bar is invisible, its actions are still available.
If defer_shortcut is True, set the shortcut context to widget-only,
where it will avoid conflict with shortcuts already bound to the
widgets themselves.
"""
menu.addAction(action)
self.addAction(action)
if defer_shortcut:
action.setShortcutContext(QtCore.Qt.WidgetShortcut)
def init_menu_bar(self):
#create menu in the order they should appear in the menu bar
self.init_file_menu()
self.init_edit_menu()
self.init_view_menu()
self.init_kernel_menu()
self.init_magic_menu()
self.init_window_menu()
self.init_help_menu()
def init_file_menu(self):
self.file_menu = self.menuBar().addMenu("&File")
self.new_kernel_tab_act = QtGui.QAction("New Tab with &New kernel",
self,
shortcut="Ctrl+T",
triggered=self.create_tab_with_new_frontend)
self.add_menu_action(self.file_menu, self.new_kernel_tab_act)
self.slave_kernel_tab_act = QtGui.QAction("New Tab with Sa&me kernel",
self,
shortcut="Ctrl+Shift+T",
triggered=self.create_tab_with_current_kernel)
self.add_menu_action(self.file_menu, self.slave_kernel_tab_act)
self.file_menu.addSeparator()
self.close_action=QtGui.QAction("&Close Tab",
self,
shortcut=QtGui.QKeySequence.Close,
triggered=self.close_active_frontend
)
self.add_menu_action(self.file_menu, self.close_action)
self.export_action=QtGui.QAction("&Save to HTML/XHTML",
self,
shortcut=QtGui.QKeySequence.Save,
triggered=self.export_action_active_frontend
)
self.add_menu_action(self.file_menu, self.export_action, True)
self.file_menu.addSeparator()
printkey = QtGui.QKeySequence(QtGui.QKeySequence.Print)
if printkey.matches("Ctrl+P") and sys.platform != 'darwin':
# Only override the default if there is a collision.
# Qt ctrl = cmd on OSX, so the match gets a false positive on OSX.
printkey = "Ctrl+Shift+P"
self.print_action = QtGui.QAction("&Print",
self,
shortcut=printkey,
triggered=self.print_action_active_frontend)
self.add_menu_action(self.file_menu, self.print_action, True)
if sys.platform != 'darwin':
# OSX always has Quit in the Application menu, only add it
# to the File menu elsewhere.
self.file_menu.addSeparator()
self.quit_action = QtGui.QAction("&Quit",
self,
shortcut=QtGui.QKeySequence.Quit,
triggered=self.close,
)
self.add_menu_action(self.file_menu, self.quit_action)
def init_edit_menu(self):
self.edit_menu = self.menuBar().addMenu("&Edit")
self.undo_action = QtGui.QAction("&Undo",
self,
shortcut=QtGui.QKeySequence.Undo,
statusTip="Undo last action if possible",
triggered=self.undo_active_frontend
)
self.add_menu_action(self.edit_menu, self.undo_action)
self.redo_action = QtGui.QAction("&Redo",
self,
shortcut=QtGui.QKeySequence.Redo,
statusTip="Redo last action if possible",
triggered=self.redo_active_frontend)
self.add_menu_action(self.edit_menu, self.redo_action)
self.edit_menu.addSeparator()
self.cut_action = QtGui.QAction("&Cut",
self,
shortcut=QtGui.QKeySequence.Cut,
triggered=self.cut_active_frontend
)
self.add_menu_action(self.edit_menu, self.cut_action, True)
self.copy_action = QtGui.QAction("&Copy",
self,
shortcut=QtGui.QKeySequence.Copy,
triggered=self.copy_active_frontend
)
self.add_menu_action(self.edit_menu, self.copy_action, True)
self.copy_raw_action = QtGui.QAction("Copy (&Raw Text)",
self,
shortcut="Ctrl+Shift+C",
triggered=self.copy_raw_active_frontend
)
self.add_menu_action(self.edit_menu, self.copy_raw_action, True)
self.paste_action = QtGui.QAction("&Paste",
self,
shortcut=QtGui.QKeySequence.Paste,
triggered=self.paste_active_frontend
)
self.add_menu_action(self.edit_menu, self.paste_action, True)
self.edit_menu.addSeparator()
selectall = QtGui.QKeySequence(QtGui.QKeySequence.SelectAll)
if selectall.matches("Ctrl+A") and sys.platform != 'darwin':
# Only override the default if there is a collision.
# Qt ctrl = cmd on OSX, so the match gets a false positive on OSX.
selectall = "Ctrl+Shift+A"
self.select_all_action = QtGui.QAction("Select &All",
self,
shortcut=selectall,
triggered=self.select_all_active_frontend
)
self.add_menu_action(self.edit_menu, self.select_all_action, True)
def init_view_menu(self):
self.view_menu = self.menuBar().addMenu("&View")
if sys.platform != 'darwin':
# disable on OSX, where there is always a menu bar
self.toggle_menu_bar_act = QtGui.QAction("Toggle &Menu Bar",
self,
shortcut="Ctrl+Shift+M",
statusTip="Toggle visibility of menubar",
triggered=self.toggle_menu_bar)
self.add_menu_action(self.view_menu, self.toggle_menu_bar_act)
fs_key = "Ctrl+Meta+F" if sys.platform == 'darwin' else "F11"
self.full_screen_act = QtGui.QAction("&Full Screen",
self,
shortcut=fs_key,
statusTip="Toggle between Fullscreen and Normal Size",
triggered=self.toggleFullScreen)
self.add_menu_action(self.view_menu, self.full_screen_act)
self.view_menu.addSeparator()
self.increase_font_size = QtGui.QAction("Zoom &In",
self,
shortcut=QtGui.QKeySequence.ZoomIn,
triggered=self.increase_font_size_active_frontend
)
self.add_menu_action(self.view_menu, self.increase_font_size, True)
self.decrease_font_size = QtGui.QAction("Zoom &Out",
self,
shortcut=QtGui.QKeySequence.ZoomOut,
triggered=self.decrease_font_size_active_frontend
)
self.add_menu_action(self.view_menu, self.decrease_font_size, True)
self.reset_font_size = QtGui.QAction("Zoom &Reset",
self,
shortcut="Ctrl+0",
triggered=self.reset_font_size_active_frontend
)
self.add_menu_action(self.view_menu, self.reset_font_size, True)
self.view_menu.addSeparator()
self.clear_action = QtGui.QAction("&Clear Screen",
self,
shortcut='Ctrl+L',
statusTip="Clear the console",
triggered=self.clear_magic_active_frontend)
self.add_menu_action(self.view_menu, self.clear_action)
self.pager_menu = self.view_menu.addMenu("&Pager")
hsplit_action = QtGui.QAction(".. &Horizontal Split",
self,
triggered=lambda: self.set_paging_active_frontend('hsplit'))
vsplit_action = QtGui.QAction(" : &Vertical Split",
self,
triggered=lambda: self.set_paging_active_frontend('vsplit'))
inside_action = QtGui.QAction(" &Inside Pager",
self,
triggered=lambda: self.set_paging_active_frontend('inside'))
self.pager_menu.addAction(hsplit_action)
self.pager_menu.addAction(vsplit_action)
self.pager_menu.addAction(inside_action)
def init_kernel_menu(self):
self.kernel_menu = self.menuBar().addMenu("&Kernel")
# Qt on OSX maps Ctrl to Cmd, and Meta to Ctrl
# keep the signal shortcuts to ctrl, rather than
# platform-default like we do elsewhere.
ctrl = "Meta" if sys.platform == 'darwin' else "Ctrl"
self.interrupt_kernel_action = QtGui.QAction("&Interrupt current Kernel",
self,
triggered=self.interrupt_kernel_active_frontend,
shortcut=ctrl+"+C",
)
self.add_menu_action(self.kernel_menu, self.interrupt_kernel_action)
self.restart_kernel_action = QtGui.QAction("&Restart current Kernel",
self,
triggered=self.restart_kernel_active_frontend,
shortcut=ctrl+"+.",
)
self.add_menu_action(self.kernel_menu, self.restart_kernel_action)
self.kernel_menu.addSeparator()
self.confirm_restart_kernel_action = QtGui.QAction("&Confirm kernel restart",
self,
checkable=True,
checked=self.active_frontend.confirm_restart,
triggered=self.toggle_confirm_restart_active_frontend
)
self.add_menu_action(self.kernel_menu, self.confirm_restart_kernel_action)
self.tab_widget.currentChanged.connect(self.update_restart_checkbox)
def _make_dynamic_magic(self,magic):
"""Return a function `fun` that will execute `magic` on active frontend.
Parameters
----------
magic : string
string that will be executed as is when the returned function is called
Returns
-------
fun : function
function with no parameters, when called will execute `magic` on the
current active frontend at call time
See Also
--------
populate_all_magic_menu : generate the "All Magics..." menu
Notes
-----
`fun` executes `magic` in active frontend at the moment it is triggered,
not the active frontend at the moment it was created.
This function is mostly used to create the "All Magics..." Menu at run time.
"""
# need two level nested function to be sure to pass magic
# to active frontend **at run time**.
def inner_dynamic_magic():
self.active_frontend.execute(magic)
inner_dynamic_magic.__name__ = "dynamics_magic_s"
return inner_dynamic_magic
def populate_all_magic_menu(self, display_data=None):
"""Clean "All Magics..." menu and repopulate it with `display_data`
Parameters
----------
display_data : dict,
dict of display_data for the magics dict of a MagicsManager.
Expects json data, as the result of %lsmagic
"""
for k,v in self._magic_menu_dict.items():
v.clear()
self.all_magic_menu.clear()
if not display_data:
return
if display_data['status'] != 'ok':
self.log.warn("%%lsmagic user-expression failed: %s" % display_data)
return
mdict = json.loads(display_data['data'].get('application/json', {}))
for mtype in sorted(mdict):
subdict = mdict[mtype]
prefix = magic_escapes[mtype]
for name in sorted(subdict):
mclass = subdict[name]
magic_menu = self._get_magic_menu(mclass)
pmagic = prefix + name
# Adding seperate QActions is needed for some window managers
xaction = QtGui.QAction(pmagic,
self,
triggered=self._make_dynamic_magic(pmagic)
)
xaction_all = QtGui.QAction(pmagic,
self,
triggered=self._make_dynamic_magic(pmagic)
)
magic_menu.addAction(xaction)
self.all_magic_menu.addAction(xaction_all)
def update_all_magic_menu(self):
""" Update the list of magics in the "All Magics..." Menu
Request the kernel with the list of available magics and populate the
menu with the list received back
"""
self.active_frontend._silent_exec_callback('get_ipython().magic("lsmagic")',
self.populate_all_magic_menu)
def _get_magic_menu(self,menuidentifier, menulabel=None):
"""return a submagic menu by name, and create it if needed
Parameters
----------
menulabel : str
Label for the menu
Will infere the menu name from the identifier at creation if menulabel not given.
To do so you have too give menuidentifier as a CamelCassedString
"""
menu = self._magic_menu_dict.get(menuidentifier,None)
if not menu :
if not menulabel:
menulabel = re.sub("([a-zA-Z]+)([A-Z][a-z])","\g<1> \g<2>",menuidentifier)
menu = QtGui.QMenu(menulabel,self.magic_menu)
self._magic_menu_dict[menuidentifier]=menu
self.magic_menu.insertMenu(self.magic_menu_separator,menu)
return menu
def init_magic_menu(self):
self.magic_menu = self.menuBar().addMenu("&Magic")
self.magic_menu_separator = self.magic_menu.addSeparator()
self.all_magic_menu = self._get_magic_menu("AllMagics", menulabel="&All Magics...")
# This action should usually not appear as it will be cleared when menu
# is updated at first kernel response. Though, it is necessary when
# connecting through X-forwarding, as in this case, the menu is not
# auto updated, SO DO NOT DELETE.
self.pop = QtGui.QAction("&Update All Magic Menu ",
self, triggered=self.update_all_magic_menu)
self.add_menu_action(self.all_magic_menu, self.pop)
# we need to populate the 'Magic Menu' once the kernel has answer at
# least once let's do it immediately, but it's assured to works
self.pop.trigger()
self.reset_action = QtGui.QAction("&Reset",
self,
statusTip="Clear all variables from workspace",
triggered=self.reset_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.reset_action)
self.history_action = QtGui.QAction("&History",
self,
statusTip="show command history",
triggered=self.history_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.history_action)
self.save_action = QtGui.QAction("E&xport History ",
self,
statusTip="Export History as Python File",
triggered=self.save_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.save_action)
self.who_action = QtGui.QAction("&Who",
self,
statusTip="List interactive variables",
triggered=self.who_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.who_action)
self.who_ls_action = QtGui.QAction("Wh&o ls",
self,
statusTip="Return a list of interactive variables",
triggered=self.who_ls_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.who_ls_action)
self.whos_action = QtGui.QAction("Who&s",
self,
statusTip="List interactive variables with details",
triggered=self.whos_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.whos_action)
def init_window_menu(self):
self.window_menu = self.menuBar().addMenu("&Window")
if sys.platform == 'darwin':
# add min/maximize actions to OSX, which lacks default bindings.
self.minimizeAct = QtGui.QAction("Mini&mize",
self,
shortcut="Ctrl+m",
statusTip="Minimize the window/Restore Normal Size",
triggered=self.toggleMinimized)
# maximize is called 'Zoom' on OSX for some reason
self.maximizeAct = QtGui.QAction("&Zoom",
self,
shortcut="Ctrl+Shift+M",
statusTip="Maximize the window/Restore Normal Size",
triggered=self.toggleMaximized)
self.add_menu_action(self.window_menu, self.minimizeAct)
self.add_menu_action(self.window_menu, self.maximizeAct)
self.window_menu.addSeparator()
prev_key = "Ctrl+Shift+Left" if sys.platform == 'darwin' else "Ctrl+PgUp"
self.prev_tab_act = QtGui.QAction("Pre&vious Tab",
self,
shortcut=prev_key,
statusTip="Select previous tab",
triggered=self.prev_tab)
self.add_menu_action(self.window_menu, self.prev_tab_act)
next_key = "Ctrl+Shift+Right" if sys.platform == 'darwin' else "Ctrl+PgDown"
self.next_tab_act = QtGui.QAction("Ne&xt Tab",
self,
shortcut=next_key,
statusTip="Select next tab",
triggered=self.next_tab)
self.add_menu_action(self.window_menu, self.next_tab_act)
def init_help_menu(self):
# please keep the Help menu in Mac Os even if empty. It will
# automatically contain a search field to search inside menus and
# please keep it spelled in English, as long as Qt Doesn't support
# a QAction.MenuRole like HelpMenuRole otherwise it will lose
# this search field functionality
self.help_menu = self.menuBar().addMenu("&Help")
# Help Menu
self.intro_active_frontend_action = QtGui.QAction("&Intro to IPython",
self,
triggered=self.intro_active_frontend
)
self.add_menu_action(self.help_menu, self.intro_active_frontend_action)
self.quickref_active_frontend_action = QtGui.QAction("IPython &Cheat Sheet",
self,
triggered=self.quickref_active_frontend
)
self.add_menu_action(self.help_menu, self.quickref_active_frontend_action)
self.guiref_active_frontend_action = QtGui.QAction("&Qt Console",
self,
triggered=self.guiref_active_frontend
)
self.add_menu_action(self.help_menu, self.guiref_active_frontend_action)
self.onlineHelpAct = QtGui.QAction("Open Online &Help",
self,
triggered=self._open_online_help)
self.add_menu_action(self.help_menu, self.onlineHelpAct)
# minimize/maximize/fullscreen actions:
def toggle_menu_bar(self):
menu_bar = self.menuBar()
if menu_bar.isVisible():
menu_bar.setVisible(False)
else:
menu_bar.setVisible(True)
def toggleMinimized(self):
if not self.isMinimized():
self.showMinimized()
else:
self.showNormal()
def _open_online_help(self):
filename="http://ipython.org/ipython-doc/stable/index.html"
webbrowser.open(filename, new=1, autoraise=True)
def toggleMaximized(self):
if not self.isMaximized():
self.showMaximized()
else:
self.showNormal()
# Min/Max imizing while in full screen give a bug
# when going out of full screen, at least on OSX
def toggleFullScreen(self):
if not self.isFullScreen():
self.showFullScreen()
if sys.platform == 'darwin':
self.maximizeAct.setEnabled(False)
self.minimizeAct.setEnabled(False)
else:
self.showNormal()
if sys.platform == 'darwin':
self.maximizeAct.setEnabled(True)
self.minimizeAct.setEnabled(True)
def set_paging_active_frontend(self, paging):
self.active_frontend._set_paging(paging)
def close_active_frontend(self):
self.close_tab(self.active_frontend)
def restart_kernel_active_frontend(self):
self.active_frontend.request_restart_kernel()
def interrupt_kernel_active_frontend(self):
self.active_frontend.request_interrupt_kernel()
def toggle_confirm_restart_active_frontend(self):
widget = self.active_frontend
widget.confirm_restart = not widget.confirm_restart
self.confirm_restart_kernel_action.setChecked(widget.confirm_restart)
def update_restart_checkbox(self):
if self.active_frontend is None:
return
widget = self.active_frontend
self.confirm_restart_kernel_action.setChecked(widget.confirm_restart)
def cut_active_frontend(self):
widget = self.active_frontend
if widget.can_cut():
widget.cut()
def copy_active_frontend(self):
widget = self.active_frontend
widget.copy()
def copy_raw_active_frontend(self):
self.active_frontend._copy_raw_action.trigger()
def paste_active_frontend(self):
widget = self.active_frontend
if widget.can_paste():
widget.paste()
def undo_active_frontend(self):
self.active_frontend.undo()
def redo_active_frontend(self):
self.active_frontend.redo()
def reset_magic_active_frontend(self):
self.active_frontend.execute("%reset")
def history_magic_active_frontend(self):
self.active_frontend.execute("%history")
def save_magic_active_frontend(self):
self.active_frontend.save_magic()
def clear_magic_active_frontend(self):
self.active_frontend.execute("%clear")
def who_magic_active_frontend(self):
self.active_frontend.execute("%who")
def who_ls_magic_active_frontend(self):
self.active_frontend.execute("%who_ls")
def whos_magic_active_frontend(self):
self.active_frontend.execute("%whos")
def print_action_active_frontend(self):
self.active_frontend.print_action.trigger()
def export_action_active_frontend(self):
self.active_frontend.export_action.trigger()
def select_all_active_frontend(self):
self.active_frontend.select_all_action.trigger()
def increase_font_size_active_frontend(self):
self.active_frontend.increase_font_size.trigger()
def decrease_font_size_active_frontend(self):
self.active_frontend.decrease_font_size.trigger()
def reset_font_size_active_frontend(self):
self.active_frontend.reset_font_size.trigger()
def guiref_active_frontend(self):
self.active_frontend.execute("%guiref")
def intro_active_frontend(self):
self.active_frontend.execute("?")
def quickref_active_frontend(self):
self.active_frontend.execute("%quickref")
#---------------------------------------------------------------------------
# QWidget interface
#---------------------------------------------------------------------------
def closeEvent(self, event):
""" Forward the close event to every tabs contained by the windows
"""
if self.tab_widget.count() == 0:
# no tabs, just close
event.accept()
return
# Do Not loop on the widget count as it change while closing
title = self.window().windowTitle()
cancel = QtGui.QMessageBox.Cancel
okay = QtGui.QMessageBox.Ok
if self.confirm_exit:
if self.tab_widget.count() > 1:
msg = "Close all tabs, stop all kernels, and Quit?"
else:
msg = "Close console, stop kernel, and Quit?"
info = "Kernels not started here (e.g. notebooks) will be left alone."
closeall = QtGui.QPushButton("&Quit", self)
closeall.setShortcut('Q')
box = QtGui.QMessageBox(QtGui.QMessageBox.Question,
title, msg)
box.setInformativeText(info)
box.addButton(cancel)
box.addButton(closeall, QtGui.QMessageBox.YesRole)
box.setDefaultButton(closeall)
box.setEscapeButton(cancel)
pixmap = QtGui.QPixmap(self._app.icon.pixmap(QtCore.QSize(64,64)))
box.setIconPixmap(pixmap)
reply = box.exec_()
else:
reply = okay
if reply == cancel:
event.ignore()
return
if reply == okay:
while self.tab_widget.count() >= 1:
# prevent further confirmations:
widget = self.active_frontend
widget._confirm_exit = False
self.close_tab(widget)
event.accept()
|