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[arm/master] fix: Submenus were crashing when outside window
by atagar＠torproject.org 05 Jun '11

05 Jun '11

commit d7f1af69b70732ef9f046411b7cf12814a8a62f9 Author: Damian Johnson <atagar(a)torproject.org> Date: Sat Jun 4 21:22:35 2011 -0700 fix: Submenus were crashing when outside window The menus (and any window with a non-zero left position) would crash when it attempted to be created outside the screen. Caught by krkhan --- src/cli/popups.py | 2 +- src/util/panel.py | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/cli/popups.py b/src/cli/… [View More]

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[torspec/master] Add proposal 181 (Optimistic data, client side) from Ian Goldberg
by nickm＠torproject.org 05 Jun '11

05 Jun '11

commit 2ab6738fa3695773b537d09e59575bc3d9be27cf Author: Nick Mathewson <nickm(a)torproject.org> Date: Sat Jun 4 23:08:40 2011 -0400 Add proposal 181 (Optimistic data, client side) from Ian Goldberg --- proposals/000-index.txt | 2 + proposals/181-optimistic-data-client.txt | 127 ++++++++++++++++++++++++++++++ 2 files changed, 129 insertions(+), 0 deletions(-) diff --git a/proposals/000-index.txt b/proposals/000-index.txt index dca67dc..06e97b5 100644 --- a/… [View More]proposals/000-index.txt +++ b/proposals/000-index.txt @@ -101,6 +101,7 @@ Proposals by number: 178 Require majority of authorities to vote for consensus parameters [OPEN] 179 TLS certificate and parameter normalization [DRAFT] 180 Pluggable transports for circumvention [OPEN] +181 Optimistic Data for Tor: Client Side [OPEN] Proposals by status: @@ -130,6 +131,7 @@ Proposals by status: 177 Abstaining from votes on individual flags [for 0.2.3.x] 178 Require majority of authorities to vote for consensus parameters [for 0.2.3.x] 180 Pluggable transports for circumvention [for 0.2.3.x] + 181 Optimistic Data for Tor: Client Side ACCEPTED: 110 Avoiding infinite length circuits [for 0.2.3.x] [in 0.2.1.3-alpha] 117 IPv6 exits [for 0.2.3.x] diff --git a/proposals/181-optimistic-data-client.txt b/proposals/181-optimistic-data-client.txt new file mode 100644 index 0000000..733b8a1 --- /dev/null +++ b/proposals/181-optimistic-data-client.txt @@ -0,0 +1,127 @@ +Filename: 181-optimistic-data-client.txt +Title: Optimistic Data for Tor: Client Side +Author: Ian Goldberg +Created: 2-Jun-2011 +Status: Open + +Overview: + +This proposal (as well as its already-implemented sibling concerning the +server side) aims to reduce the latency of HTTP requests in particular +by allowing: +1. SOCKS clients to optimistically send data before they are notified + that the SOCKS connection has completed successfully +2. OPs to optimistically send DATA cells on streams in the CONNECT_WAIT + state +3. Exit nodes to accept and queue DATA cells while in the + EXIT_CONN_STATE_CONNECTING state + +This particular proposal deals with #1 and #2. + +For more details (in general and for #3), see the sibling proposal 174 +(Optimistic Data for Tor: Server Side), which has been implemented in +0.2.3.1-alpha. + +Motivation: + +This change will save one OP<->Exit round trip (down to one from two). +There are still two SOCKS Client<->OP round trips (negligible time) and +two Exit<->Server round trips. Depending on the ratio of the +Exit<->Server (Internet) RTT to the OP<->Exit (Tor) RTT, this will +decrease the latency by 25 to 50 percent. Experiments validate these +predictions. [Goldberg, PETS 2010 rump session; see +https://thunk.cs.uwaterloo.ca/optimistic-data-pets2010-rump.pdf ] + +Design: + +Currently, data arriving on the SOCKS connection to the OP on a stream +in AP_CONN_STATE_CONNECT_WAIT is queued, and transmitted when the state +transitions to AP_CONN_STATE_OPEN. Instead, when data arrives on the +SOCKS connection to the OP on a stream in AP_CONN_STATE_CONNECT_WAIT +(connection_edge_process_inbuf): + +- Check to see whether optimistic data is allowed at all (see below). +- Check to see whether the exit node for this stream supports optimistic + data (according to tor-spec.txt section 6.2, this means that the + exit node's version number is at least 0.2.3.1-alpha). If you don't + know the exit node's version number (because it's not in your + hashtable of fingerprints, for example), assume it does *not* support + optimistic data. +- If both are true, transmit the data on the stream. + +Also, when a stream transitions *to* AP_CONN_STATE_CONNECT_WAIT +(connection_ap_handshake_send_begin), do the above checks, and +immediately send any already-queued data if they pass. + +SOCKS clients (e.g. polipo) will also need to be patched to take +advantage of optimistic data. The simplest solution would seem to be to +just start sending data immediately after sending the SOCKS CONNECT +command, without waiting for the SOCKS server reply. When the SOCKS +client starts reading data back from the SOCKS server, it will first +receive the SOCKS server reply, which may indicate success or failure. +If success, it just continues reading the stream as normal. If failure, +it does whatever it used to do when a SOCKS connection failed. + +Security implications: + +ORs (for sure the Exit, and possibly others, by watching the +pattern of packets), as well as possibly end servers, will be able to +tell that a particular client is using optimistic data. This of course +has the potential to fingerprint clients, dividing the anonymity set. +The usual kind of solution is suggested: + +- There is a boolean consensus parameter UseOptimisticData. +- There is a 3-state (-1, 0, 1) configuration parameter + UseOptimisticData (or give it a distinct name if you like) + defaulting to -1. +- If the configuration parameter is -1, the OP obeys the consensus + value; otherwise, it obeys the configuration parameter. + +It may be wise to set the consensus parameter to 1 at the same time as +similar other client protocol changes are made (for example, a new +circuit construction protocol) in order to not further subdivide the +anonymity set. + +Specification: + +The current tor-spec has already been updated by proposal 174 to handle +optimistic data. It says, in part: + + If the exit node does not support optimistic data (i.e. its version + number is before 0.2.3.1-alpha), then the OP MUST wait for a + RELAY_CONNECTED cell before sending any data. If the exit node + supports optimistic data (i.e. its version number is 0.2.3.1-alpha + or later), then the OP MAY send RELAY_DATA cells immediately after + sending the RELAY_BEGIN cell (and before receiving either a + RELAY_CONNECTED or RELAY_END cell). + +Should the "MAY" be more specific, referring to the consensus +parameters? Or does the existence of the configuration parameter +override mean it's really "MAY", regardless? + +Compatibility: + +There are compatibility issues, as mentioned above. OPs MUST NOT send +optimistic data to Exit nodes whose version numbers predate +0.2.3.1-alpha. OPs MAY send optimistic data to Exit nodes whose version +numbers match or follow that value. + +Implementation: + +My git diff is 42 lines long (+17 lines, -1 line), changing only the two +functions mentioned above (connection_edge_process_inbuf and +connection_ap_handshake_send_begin). This diff does not, however, +handle the configuration options, or check the version number of the +exit node. + +I have patched a command-line SOCKS client (webfetch) to use optimistic +data. I have not attempted to patch polipo, but I have looked at it a +bit, and it seems pretty straightforward. (Of course, if and when +polipo is deprecated, whatever else speaks SOCKS to the OP should take +advantage of optimistic data.) + +Performance and scalability notes: + +OPs may queue a little more data, if the SOCKS client pushes it faster +than the OP can write it out. But that's also true today after the +SOCKS CONNECT returns success, right? [View Less]

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[arm/master] Added support for File->Exit and Configuation->Reset Tor.
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit 62f118867dca5848d798bc2747a87b517bf81db9 Author: Kamran Riaz Khan <krkhan(a)inspirated.com> Date: Thu Jun 2 15:28:07 2011 +0500 Added support for File->Exit and Configuation->Reset Tor. Event handlers can return a key which shall be carried all the way back to the controller which can use it for the next override in case it's recognized. Exit and Reset Tor return 'q' and 'x' keys respectively. cli.__all__ is updated to include menu module. … [View More]--- src/cli/__init__.py | 2 +- src/cli/controller.py | 5 ++++- src/cli/menu.py | 15 +++++++++++---- src/util/menuItem.py | 2 +- 4 files changed, 17 insertions(+), 7 deletions(-) diff --git a/src/cli/__init__.py b/src/cli/__init__.py index 1564f68..81fabeb 100644 --- a/src/cli/__init__.py +++ b/src/cli/__init__.py @@ -2,5 +2,5 @@ Panels, popups, and handlers comprising the arm user interface. """ -__all__ = ["configPanel", "controller", "descriptorPopup", "headerPanel", "logPanel", "popups", "torrcPanel"] +__all__ = ["configPanel", "controller", "descriptorPopup", "headerPanel", "logPanel", "menu", "popups", "torrcPanel"] diff --git a/src/cli/controller.py b/src/cli/controller.py index d073312..bb258c3 100644 --- a/src/cli/controller.py +++ b/src/cli/controller.py @@ -518,7 +518,10 @@ def drawTorMonitor(stdscr, startTime): menu = cli.menu.Menu() menuKeys = menu.showMenu(keys=menuKeys) if menuKeys != []: - overrideKey = ord('m') + for key in (ord('m'), ord('q'), ord('x')): + if key in menuKeys: + menuKeys.remove(key) + overrideKey = key elif key == ord('q') or key == ord('Q'): # provides prompt to confirm that arm should exit if CONFIG["features.confirmQuit"]: diff --git a/src/cli/menu.py b/src/cli/menu.py index beceb01..47e8d09 100644 --- a/src/cli/menu.py +++ b/src/cli/menu.py @@ -19,7 +19,7 @@ class Menu(): DEFAULT_ROOT = menuItem.MenuItem(label="Root", children=( menuItem.MenuItem(label="File", children=( menuItem.MenuItem(label="Exit", - callback=self._callbackDefault),)), + callback=lambda item: self._callbackReturnKey(ord('q'))),)), menuItem.MenuItem(label="Logs", children=( menuItem.MenuItem(label="Events", callback=lambda item: self._callbackPressKey('log', ord('e'))), @@ -88,7 +88,7 @@ class Menu(): menuItem.MenuItem(label="Reload", callback=lambda item: self._callbackPressKey('configFile', ord('r'))), menuItem.MenuItem(label="Reset Tor", - callback=self._callbackDefault),)) + callback=lambda item: self._callbackReturnKey(ord('x'))),)) )) self._first = [0] @@ -291,6 +291,7 @@ class Menu(): cascaded, returnkeys = self._cascadeNLevel() if cascaded == False: index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] + 1 + returnkeys.append(ord('m')) for i in range(index): returnkeys.append(curses.KEY_RIGHT) returnkeys.append(curses.KEY_DOWN) @@ -298,6 +299,7 @@ class Menu(): elif key == curses.KEY_LEFT: index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] - 1 index = index % self._rootItem.getChildrenCount() + returnkeys.append(ord('m')) for i in range(index): returnkeys.append(curses.KEY_RIGHT) returnkeys.append(curses.KEY_DOWN) @@ -306,7 +308,9 @@ class Menu(): self._removeLevel() break elif uiTools.isSelectionKey(key): - self._handleEvent() + returnkey = self._handleEvent() + if returnkey: + returnkeys.append(returnkey) self._removeLevel() break @@ -374,7 +378,7 @@ class Menu(): item = self._getCurrentItem() if item.isLeaf(): - item.select() + return item.select() else: self._cascadeNLevel() @@ -429,3 +433,6 @@ class Menu(): panel = control.getPanel(panel) panel.handleKey(key) + def _callbackReturnKey(self, key): + return key + diff --git a/src/util/menuItem.py b/src/util/menuItem.py index 6868db6..b48c433 100644 --- a/src/util/menuItem.py +++ b/src/util/menuItem.py @@ -35,5 +35,5 @@ class MenuItem(): return len(self._children) def select(self): - self._callback(self) + return self._callback(self) [View Less]

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[arm/master] Merging krkhan's menus work
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit ccd77c1e77c30265a6d36732697854cf6afc069b Merge: 32c6f17 62f1188 Author: Damian Johnson <atagar(a)torproject.org> Date: Thu Jun 2 08:59:45 2011 -0700 Merging krkhan's menus work src/cli/__init__.py | 2 +- src/cli/controller.py | 17 ++- src/cli/menu.py | 438 +++++++++++++++++++++++++++++++++++++++++++++++++ src/cli/popups.py | 9 +- src/util/menuItem.py | 39 +++++ src/util/panel.py | 18 ++- 6 files changed, 518 insertions(+), 5 deletions(-)

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[arm/master] Moving Kamran's menu to avoid namespace conflicts
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit 856226d684220b746b44c2f44a1c3d3d03f8384b Author: Damian Johnson <atagar(a)torproject.org> Date: Sat Jun 4 14:05:23 2011 -0700 Moving Kamran's menu to avoid namespace conflicts My 'src/cli/menu' module was conflicting with his 'src/cli/menu.py' class so I've moved his implementation to 'src/cli/menu_alt'. --- src/cli/__init__.py | 2 +- src/cli/controller.py | 6 +- src/cli/menu.py | 438 ----------------------------------------… [View More]- src/cli/menu_alt/__init__.py | 6 + src/cli/menu_alt/menu.py | 439 ++++++++++++++++++++++++++++++++++++++++++ src/cli/menu_alt/menuItem.py | 41 ++++ src/util/menuItem.py | 41 ---- 7 files changed, 490 insertions(+), 483 deletions(-) diff --git a/src/cli/__init__.py b/src/cli/__init__.py index 81fabeb..1564f68 100644 --- a/src/cli/__init__.py +++ b/src/cli/__init__.py @@ -2,5 +2,5 @@ Panels, popups, and handlers comprising the arm user interface. """ -__all__ = ["configPanel", "controller", "descriptorPopup", "headerPanel", "logPanel", "menu", "popups", "torrcPanel"] +__all__ = ["configPanel", "controller", "descriptorPopup", "headerPanel", "logPanel", "popups", "torrcPanel"] diff --git a/src/cli/controller.py b/src/cli/controller.py index fac43a4..997d9d3 100644 --- a/src/cli/controller.py +++ b/src/cli/controller.py @@ -7,8 +7,8 @@ import time import curses import threading -import cli.menu import cli.menu.menu +import cli.menu_alt.menu import cli.popups import cli.headerPanel import cli.logPanel @@ -512,10 +512,10 @@ def drawTorMonitor(stdscr, startTime): elif key == ord('p') or key == ord('P'): control.setPaused(not control.isPaused()) elif key == ord('n') or key == ord('N'): - menu = cli.menu.Menu() + menu = cli.menu_alt.menu.Menu() menuKeys = menu.showMenu(keys=menuKeys) if menuKeys != []: - for key in (ord('m'), ord('q'), ord('x')): + for key in (ord('n'), ord('q'), ord('x')): if key in menuKeys: menuKeys.remove(key) overrideKey = key diff --git a/src/cli/menu.py b/src/cli/menu.py deleted file mode 100644 index 47e8d09..0000000 --- a/src/cli/menu.py +++ /dev/null @@ -1,438 +0,0 @@ -""" -A drop-down menu for sending actions to panels. -""" - -import curses - -import cli.controller -import popups - -from cli.graphing.graphPanel import Bounds as GraphBounds -from util import log, panel, uiTools, menuItem - -PARENTLEVEL, TOPLEVEL = (-1, 0) - -class Menu(): - """Displays a popup menu and sends keys to appropriate panels""" - - def __init__(self, item=None): - DEFAULT_ROOT = menuItem.MenuItem(label="Root", children=( - menuItem.MenuItem(label="File", children=( - menuItem.MenuItem(label="Exit", - callback=lambda item: self._callbackReturnKey(ord('q'))),)), - menuItem.MenuItem(label="Logs", children=( - menuItem.MenuItem(label="Events", - callback=lambda item: self._callbackPressKey('log', ord('e'))), - menuItem.MenuItem(label="Clear", - callback=lambda item: self._callbackPressKey('log', ord('c'))), - menuItem.MenuItem(label="Save", - callback=lambda item: self._callbackPressKey('log', ord('a'))), - menuItem.MenuItem(label="Filter", - callback=lambda item: self._callbackPressKey('log', ord('f'))), - menuItem.MenuItem(label="Duplicates", children=( - menuItem.MenuItem(label="Hidden", - callback=lambda item: self._callbackSet('log', 'showDuplicates', False, ord('u')), - enabled=lambda: self._getItemEnabled('log', 'showDuplicates', False)), - menuItem.MenuItem(label="Visible", - callback=lambda item: self._callbackSet('log', 'showDuplicates', True, ord('u')), - enabled=lambda: self._getItemEnabled('log', 'showDuplicates', True)), - )))), - menuItem.MenuItem(label="View", children=( - menuItem.MenuItem(label="Graph", - callback=lambda item: self._callbackView('graph')), - menuItem.MenuItem(label="Connections", - callback=lambda item: self._callbackView('conn')), - menuItem.MenuItem(label="Configuration", - callback=lambda item: self._callbackView('configState')), - menuItem.MenuItem(label="Configuration File", - callback=lambda item: self._callbackView('configFile')),)), - menuItem.MenuItem(label="Graph", children=( - menuItem.MenuItem(label="Stats", - callback=lambda item: self._callbackPressKey('graph', ord('s'))), - menuItem.MenuItem(label="Size", children=( - menuItem.MenuItem(label="Increase", - callback=lambda item: self._callbackPressKey('graph', ord('m'))), - menuItem.MenuItem(label="Decrease", - callback=lambda item: self._callbackPressKey('graph', ord('n'))), - )), - menuItem.MenuItem(label="Update Interval", - callback=lambda item: self._callbackPressKey('graph', ord('i'))), - menuItem.MenuItem(label="Bounds", children=( - menuItem.MenuItem(label="Local Max", - callback=lambda item: self._callbackSet('graph', 'bounds', GraphBounds.LOCAL_MAX, ord('b')), - enabled=lambda: self._getItemEnabled('graph', 'bounds', GraphBounds.LOCAL_MAX)), - menuItem.MenuItem(label="Global Max", - callback=lambda item: self._callbackSet('graph', 'bounds', GraphBounds.GLOBAL_MAX, ord('b')), - enabled=lambda: self._getItemEnabled('graph', 'bounds', GraphBounds.GLOBAL_MAX)), - menuItem.MenuItem(label="Tight", - callback=lambda item: self._callbackSet('graph', 'bounds', GraphBounds.TIGHT, ord('b')), - enabled=lambda: self._getItemEnabled('graph', 'bounds', GraphBounds.TIGHT)), - )),)), - menuItem.MenuItem(label="Connections", children=( - menuItem.MenuItem(label="Identity", - callback=lambda item: self._callbackPressKey('conn', ord('l'))), - menuItem.MenuItem(label="Resolver", - callback=lambda item: self._callbackPressKey('conn', ord('u'))), - menuItem.MenuItem(label="Sort Order", - callback=lambda item: self._callbackPressKey('conn', ord('s'))), - )), - menuItem.MenuItem(label="Configuration" , children=( - menuItem.MenuItem(label="Comments", children=( - menuItem.MenuItem(label="Hidden", - callback=lambda item: self._callbackSet('configFile', 'stripComments', True, ord('s')), - enabled=lambda: self._getItemEnabled('configFile', 'stripComments', True)), - menuItem.MenuItem(label="Visible", - callback=lambda item: self._callbackSet('configFile', 'stripComments', False, ord('s')), - enabled=lambda: self._getItemEnabled('configFile', 'stripComments', False)), - )), - menuItem.MenuItem(label="Reload", - callback=lambda item: self._callbackPressKey('configFile', ord('r'))), - menuItem.MenuItem(label="Reset Tor", - callback=lambda item: self._callbackReturnKey(ord('x'))),)) - )) - - self._first = [0] - self._selection = [0] - - if item and item.isParent(): - self._rootItem = item - else: - self._rootItem = DEFAULT_ROOT - - def showMenu(self, keys=[]): - keys.reverse() - returnkeys = [] - - popup, width, height = popups.init(height=3) - if popup: - try: - while True: - popup.win.erase() - popup.win.box() - - self._drawTopLevel(popup, width, height) - - popup.win.refresh() - - control = cli.controller.getController() - - if keys == []: - key = control.getScreen().getch() - else: - key = keys.pop() - - if key == curses.KEY_RIGHT: - self._moveTopLevelRight(width) - elif key == curses.KEY_LEFT: - self._moveTopLevelLeft(width) - elif key == curses.KEY_DOWN: - cascaded, returnkeys = self._cascadeNLevel() - break - elif key == 27: - break - elif uiTools.isSelectionKey(key): - self._handleEvent() - break - - finally: - popups.finalize() - - return returnkeys - - def _appendLevel(self): - self._first.append(0) - self._selection.append(0) - - def _removeLevel(self): - self._first.pop() - self._selection.pop() - - def _getCurrentTopLevelItem(self): - index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] - return self._rootItem.getChildren()[index] - - def _getCurrentItem(self, level=0): - item = self._rootItem - if level == 0: - sums = [sum(values) for values in zip(self._first, self._selection)] - else: - sums = [sum(values) for values in zip(self._first[:level], self._selection[:level])] - - for index in sums: - if item.isParent(): - item = item.getChildren()[index] - else: - break - - return item - - def _calculateTopLevelWidths(self, width=0): - labels = [menuItem.getLabel() for menuItem in self._rootItem.getChildren()] - - # width per label is set according to the longest label - labelwidth = max(map(len, labels)) + 2 - - # total number of labels that can be printed in supplied width - printable = min(width / labelwidth - 1, self._rootItem.getChildrenCount()) - - return (labelwidth, printable) - - def _calculateNLevelWidths(self, level=0): - parent = self._getCurrentItem(level) - - if parent.isLeaf(): - return 0 - - labels = [menuItem.getLabel() for menuItem in parent.getChildren()] - - labelwidth = max(map(len, labels)) - - return labelwidth - - def _calculateNLevelHeights(self, height=0, level=0): - control = cli.controller.getController() - height, _ = control.getScreen().getmaxyx() - topSize = sum(stickyPanel.getHeight() for stickyPanel in control.getStickyPanels()) - height = height - topSize - - parent = self._getCurrentItem(level) - - if parent.isLeaf(): - return 0 - - printable = min(height - 4, parent.getChildrenCount()) - - return printable if printable else parent.getChildrenCount() - - def _moveTopLevelRight(self, width): - _, printable = self._calculateTopLevelWidths(width) - - if self._selection[TOPLEVEL] < printable - 1: - self._selection[TOPLEVEL] = self._selection[TOPLEVEL] + 1 - else: - self._selection[TOPLEVEL] = 0 - if printable < self._rootItem.getChildrenCount(): - self._first[TOPLEVEL] = (self._first[TOPLEVEL] + printable) % self._rootItem.getChildrenCount() - - if self._first[TOPLEVEL] + self._selection[TOPLEVEL] == self._rootItem.getChildrenCount(): - self._first[TOPLEVEL] = 0 - self._selection[TOPLEVEL] = 0 - - def _moveTopLevelLeft(self, width): - _, printable = self._calculateTopLevelWidths(width) - - if self._selection[TOPLEVEL] > 0: - self._selection[TOPLEVEL] = self._selection[TOPLEVEL] - 1 - else: - if self._first[TOPLEVEL] == 0: - self._first[TOPLEVEL] = ((self._rootItem.getChildrenCount() / printable) * printable) % self._rootItem.getChildrenCount() - else: - self._first[TOPLEVEL] = abs(self._first[TOPLEVEL] - printable) % self._rootItem.getChildrenCount() - self._selection[TOPLEVEL] = self._rootItem.getChildrenCount() - self._first[TOPLEVEL] - 1 - - if self._selection[TOPLEVEL] > printable: - self._selection[TOPLEVEL] = printable - 1 - - def _drawTopLevel(self, popup, width, height): - labelwidth, printable = self._calculateTopLevelWidths(width) - children = self._rootItem.getChildren()[self._first[TOPLEVEL]:self._first[TOPLEVEL] + printable] - - top = 1 - left = 1 - for (index, item) in enumerate(children): - labelformat = curses.A_STANDOUT if index == self._selection[TOPLEVEL] else curses.A_NORMAL - - popup.addch(top, left, curses.ACS_VLINE) - left = left + 1 - popup.addstr(top, left, item.getLabel().center(labelwidth), labelformat) - left = left + labelwidth - - popup.addch(top, left, curses.ACS_VLINE) - left = left + 1 - - def _cascadeNLevel(self): - parent = self._getCurrentItem() - - if parent.isLeaf(): - return (False, []) - - self._appendLevel() - - labelwidth = self._calculateNLevelWidths(level=PARENTLEVEL) - printable = self._calculateNLevelHeights(level=PARENTLEVEL) - - toplabelwidth, _ = self._calculateTopLevelWidths() - left = (toplabelwidth + 2) * self._selection[TOPLEVEL] - - popup, width, height = popups.init(height=printable+2, width=labelwidth+2, top=2, left=left) - - while self._getCurrentItem().isEnabled() == False: - self._moveNLevelDown(height) - - if popup.win: - returnkeys = [] - try: - while True: - popup.win.erase() - popup.win.box() - - self._drawNLevel(popup, width, height) - - popup.win.refresh() - - control = cli.controller.getController() - key = control.getScreen().getch() - - if key == curses.KEY_DOWN: - self._moveNLevelDown(height) - elif key == curses.KEY_UP: - self._moveNLevelUp(height) - elif key == curses.KEY_RIGHT: - cascaded, returnkeys = self._cascadeNLevel() - if cascaded == False: - index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] + 1 - returnkeys.append(ord('m')) - for i in range(index): - returnkeys.append(curses.KEY_RIGHT) - returnkeys.append(curses.KEY_DOWN) - break - elif key == curses.KEY_LEFT: - index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] - 1 - index = index % self._rootItem.getChildrenCount() - returnkeys.append(ord('m')) - for i in range(index): - returnkeys.append(curses.KEY_RIGHT) - returnkeys.append(curses.KEY_DOWN) - break - elif key == 27: - self._removeLevel() - break - elif uiTools.isSelectionKey(key): - returnkey = self._handleEvent() - if returnkey: - returnkeys.append(returnkey) - self._removeLevel() - break - - finally: - popups.finalize() - - return (True, returnkeys) - - return (False, []) - - def _drawNLevel(self, popup, width, height): - printable = self._calculateNLevelHeights(level=PARENTLEVEL) - parent = self._getCurrentItem(level=PARENTLEVEL) - children = parent.getChildren()[self._first[PARENTLEVEL]:self._first[PARENTLEVEL] + printable] - - top = 1 - left = 1 - for (index, item) in enumerate(children): - labelformat = curses.A_STANDOUT if index == self._selection[PARENTLEVEL] else curses.A_NORMAL - - if not item.isEnabled(): - labelformat = labelformat | uiTools.getColor('yellow') - - popup.addstr(top, left, item.getLabel(), labelformat) - top = top + 1 - - def _moveNLevelDown(self, height): - printable = self._calculateNLevelHeights(level=PARENTLEVEL) - parent = self._getCurrentItem(level=PARENTLEVEL) - - if self._selection[PARENTLEVEL] < printable - 1: - self._selection[PARENTLEVEL] = self._selection[PARENTLEVEL] + 1 - else: - self._selection[PARENTLEVEL] = 0 - if printable < parent.getChildrenCount(): - self._first[PARENTLEVEL] = (self._first[PARENTLEVEL] + printable) % parent.getChildrenCount() - - if self._first[PARENTLEVEL] + self._selection[PARENTLEVEL] == parent.getChildrenCount(): - self._first[PARENTLEVEL] = 0 - self._selection[PARENTLEVEL] = 0 - - while self._getCurrentItem().isEnabled() == False: - self._moveNLevelDown(height) - - def _moveNLevelUp(self, height): - printable = self._calculateNLevelHeights(level=PARENTLEVEL) - parent = self._getCurrentItem(level=PARENTLEVEL) - - if self._selection[PARENTLEVEL] > 0: - self._selection[PARENTLEVEL] = self._selection[PARENTLEVEL] - 1 - else: - if self._first[PARENTLEVEL] == 0: - self._first[PARENTLEVEL] = ((parent.getChildrenCount() / printable) * printable) % parent.getChildrenCount() - else: - self._first[PARENTLEVEL] = abs(self._first[PARENTLEVEL] - printable) % parent.getChildrenCount() - self._selection[PARENTLEVEL] = parent.getChildrenCount() - self._first[PARENTLEVEL] - 1 - - if self._selection[PARENTLEVEL] > printable: - self._selection[PARENTLEVEL] = printable - 1 - - while self._getCurrentItem().isEnabled() == False: - self._moveNLevelUp(height) - - def _handleEvent(self): - item = self._getCurrentItem() - - if item.isLeaf(): - return item.select() - else: - self._cascadeNLevel() - - def _callbackDefault(self, item): - log.log(log.NOTICE, "%s selected" % item.getLabel()) - - def _callbackView(self, panelname): - control = cli.controller.getController() - - start = control.getPage() - panels = control.getDisplayPanels(includeSticky=False) - panelnames = [panel.getName() for panel in panels] - while not panelname in panelnames: - control.nextPage() - panels = control.getDisplayPanels(includeSticky=False) - panelnames = [panel.getName() for panel in panels] - - if control.getPage() == start: - log.log(log.ERR, "Panel %s not found" % panelname) - break - - def _getItemEnabled(self, panel, attr, value): - control = cli.controller.getController() - if control: - panel = control.getPanel(panel) - - if panel: - return getattr(panel, attr, None) != value - - return False - - def _callbackSet(self, panel, attr, value, key=None): - control = cli.controller.getController() - panel = control.getPanel(panel) - - panelattr = getattr(panel, attr, None) - - if panelattr != None: - if hasattr(panelattr, '__call__'): - panelattr(value) - elif panelattr != value and key != None: - start = panelattr - while panelattr != value: - panel.handleKey(key) - panelattr = getattr(panel, attr, None) - if panelattr == start: - log.log(log.ERR, "Could not set %s.%s" % (panel, attr)) - break - - def _callbackPressKey(self, panel, key): - control = cli.controller.getController() - panel = control.getPanel(panel) - panel.handleKey(key) - - def _callbackReturnKey(self, key): - return key - diff --git a/src/cli/menu_alt/__init__.py b/src/cli/menu_alt/__init__.py new file mode 100644 index 0000000..6d7b6b7 --- /dev/null +++ b/src/cli/menu_alt/__init__.py @@ -0,0 +1,6 @@ +""" +Resources for displaying the menu. +""" + +__all__ = ["menuItem", "menu"] + diff --git a/src/cli/menu_alt/menu.py b/src/cli/menu_alt/menu.py new file mode 100644 index 0000000..7e10366 --- /dev/null +++ b/src/cli/menu_alt/menu.py @@ -0,0 +1,439 @@ +""" +A drop-down menu for sending actions to panels. +""" + +import curses + +import cli.controller +import cli.menu_alt.menuItem as menuItem +import cli.popups + +from cli.graphing.graphPanel import Bounds as GraphBounds +from util import log, panel, uiTools + +PARENTLEVEL, TOPLEVEL = (-1, 0) + +class Menu(): + """Displays a popup menu and sends keys to appropriate panels""" + + def __init__(self, item=None): + DEFAULT_ROOT = menuItem.MenuItem(label="Root", children=( + menuItem.MenuItem(label="File", children=( + menuItem.MenuItem(label="Exit", + callback=lambda item: self._callbackReturnKey(ord('q'))),)), + menuItem.MenuItem(label="Logs", children=( + menuItem.MenuItem(label="Events", + callback=lambda item: self._callbackPressKey('log', ord('e'))), + menuItem.MenuItem(label="Clear", + callback=lambda item: self._callbackPressKey('log', ord('c'))), + menuItem.MenuItem(label="Save", + callback=lambda item: self._callbackPressKey('log', ord('a'))), + menuItem.MenuItem(label="Filter", + callback=lambda item: self._callbackPressKey('log', ord('f'))), + menuItem.MenuItem(label="Duplicates", children=( + menuItem.MenuItem(label="Hidden", + callback=lambda item: self._callbackSet('log', 'showDuplicates', False, ord('u')), + enabled=lambda: self._getItemEnabled('log', 'showDuplicates', False)), + menuItem.MenuItem(label="Visible", + callback=lambda item: self._callbackSet('log', 'showDuplicates', True, ord('u')), + enabled=lambda: self._getItemEnabled('log', 'showDuplicates', True)), + )))), + menuItem.MenuItem(label="View", children=( + menuItem.MenuItem(label="Graph", + callback=lambda item: self._callbackView('graph')), + menuItem.MenuItem(label="Connections", + callback=lambda item: self._callbackView('conn')), + menuItem.MenuItem(label="Configuration", + callback=lambda item: self._callbackView('configState')), + menuItem.MenuItem(label="Configuration File", + callback=lambda item: self._callbackView('configFile')),)), + menuItem.MenuItem(label="Graph", children=( + menuItem.MenuItem(label="Stats", + callback=lambda item: self._callbackPressKey('graph', ord('s'))), + menuItem.MenuItem(label="Size", children=( + menuItem.MenuItem(label="Increase", + callback=lambda item: self._callbackPressKey('graph', ord('m'))), + menuItem.MenuItem(label="Decrease", + callback=lambda item: self._callbackPressKey('graph', ord('n'))), + )), + menuItem.MenuItem(label="Update Interval", + callback=lambda item: self._callbackPressKey('graph', ord('i'))), + menuItem.MenuItem(label="Bounds", children=( + menuItem.MenuItem(label="Local Max", + callback=lambda item: self._callbackSet('graph', 'bounds', GraphBounds.LOCAL_MAX, ord('b')), + enabled=lambda: self._getItemEnabled('graph', 'bounds', GraphBounds.LOCAL_MAX)), + menuItem.MenuItem(label="Global Max", + callback=lambda item: self._callbackSet('graph', 'bounds', GraphBounds.GLOBAL_MAX, ord('b')), + enabled=lambda: self._getItemEnabled('graph', 'bounds', GraphBounds.GLOBAL_MAX)), + menuItem.MenuItem(label="Tight", + callback=lambda item: self._callbackSet('graph', 'bounds', GraphBounds.TIGHT, ord('b')), + enabled=lambda: self._getItemEnabled('graph', 'bounds', GraphBounds.TIGHT)), + )),)), + menuItem.MenuItem(label="Connections", children=( + menuItem.MenuItem(label="Identity", + callback=lambda item: self._callbackPressKey('conn', ord('l'))), + menuItem.MenuItem(label="Resolver", + callback=lambda item: self._callbackPressKey('conn', ord('u'))), + menuItem.MenuItem(label="Sort Order", + callback=lambda item: self._callbackPressKey('conn', ord('s'))), + )), + menuItem.MenuItem(label="Configuration" , children=( + menuItem.MenuItem(label="Comments", children=( + menuItem.MenuItem(label="Hidden", + callback=lambda item: self._callbackSet('configFile', 'stripComments', True, ord('s')), + enabled=lambda: self._getItemEnabled('configFile', 'stripComments', True)), + menuItem.MenuItem(label="Visible", + callback=lambda item: self._callbackSet('configFile', 'stripComments', False, ord('s')), + enabled=lambda: self._getItemEnabled('configFile', 'stripComments', False)), + )), + menuItem.MenuItem(label="Reload", + callback=lambda item: self._callbackPressKey('configFile', ord('r'))), + menuItem.MenuItem(label="Reset Tor", + callback=lambda item: self._callbackReturnKey(ord('x'))),)) + )) + + self._first = [0] + self._selection = [0] + + if item and item.isParent(): + self._rootItem = item + else: + self._rootItem = DEFAULT_ROOT + + def showMenu(self, keys=[]): + keys.reverse() + returnkeys = [] + + popup, width, height = cli.popups.init(height=3) + if popup: + try: + while True: + popup.win.erase() + popup.win.box() + + self._drawTopLevel(popup, width, height) + + popup.win.refresh() + + control = cli.controller.getController() + + if keys == []: + key = control.getScreen().getch() + else: + key = keys.pop() + + if key == curses.KEY_RIGHT: + self._moveTopLevelRight(width) + elif key == curses.KEY_LEFT: + self._moveTopLevelLeft(width) + elif key == curses.KEY_DOWN: + cascaded, returnkeys = self._cascadeNLevel() + break + elif key == 27: + break + elif uiTools.isSelectionKey(key): + self._handleEvent() + break + + finally: + cli.popups.finalize() + + return returnkeys + + def _appendLevel(self): + self._first.append(0) + self._selection.append(0) + + def _removeLevel(self): + self._first.pop() + self._selection.pop() + + def _getCurrentTopLevelItem(self): + index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] + return self._rootItem.getChildren()[index] + + def _getCurrentItem(self, level=0): + item = self._rootItem + if level == 0: + sums = [sum(values) for values in zip(self._first, self._selection)] + else: + sums = [sum(values) for values in zip(self._first[:level], self._selection[:level])] + + for index in sums: + if item.isParent(): + item = item.getChildren()[index] + else: + break + + return item + + def _calculateTopLevelWidths(self, width=0): + labels = [menuItem.getLabel() for menuItem in self._rootItem.getChildren()] + + # width per label is set according to the longest label + labelwidth = max(map(len, labels)) + 2 + + # total number of labels that can be printed in supplied width + printable = min(width / labelwidth - 1, self._rootItem.getChildrenCount()) + + return (labelwidth, printable) + + def _calculateNLevelWidths(self, level=0): + parent = self._getCurrentItem(level) + + if parent.isLeaf(): + return 0 + + labels = [menuItem.getLabel() for menuItem in parent.getChildren()] + + labelwidth = max(map(len, labels)) + + return labelwidth + + def _calculateNLevelHeights(self, height=0, level=0): + control = cli.controller.getController() + height, _ = control.getScreen().getmaxyx() + topSize = sum(stickyPanel.getHeight() for stickyPanel in control.getStickyPanels()) + height = height - topSize + + parent = self._getCurrentItem(level) + + if parent.isLeaf(): + return 0 + + printable = min(height - 4, parent.getChildrenCount()) + + return printable if printable else parent.getChildrenCount() + + def _moveTopLevelRight(self, width): + _, printable = self._calculateTopLevelWidths(width) + + if self._selection[TOPLEVEL] < printable - 1: + self._selection[TOPLEVEL] = self._selection[TOPLEVEL] + 1 + else: + self._selection[TOPLEVEL] = 0 + if printable < self._rootItem.getChildrenCount(): + self._first[TOPLEVEL] = (self._first[TOPLEVEL] + printable) % self._rootItem.getChildrenCount() + + if self._first[TOPLEVEL] + self._selection[TOPLEVEL] == self._rootItem.getChildrenCount(): + self._first[TOPLEVEL] = 0 + self._selection[TOPLEVEL] = 0 + + def _moveTopLevelLeft(self, width): + _, printable = self._calculateTopLevelWidths(width) + + if self._selection[TOPLEVEL] > 0: + self._selection[TOPLEVEL] = self._selection[TOPLEVEL] - 1 + else: + if self._first[TOPLEVEL] == 0: + self._first[TOPLEVEL] = ((self._rootItem.getChildrenCount() / printable) * printable) % self._rootItem.getChildrenCount() + else: + self._first[TOPLEVEL] = abs(self._first[TOPLEVEL] - printable) % self._rootItem.getChildrenCount() + self._selection[TOPLEVEL] = self._rootItem.getChildrenCount() - self._first[TOPLEVEL] - 1 + + if self._selection[TOPLEVEL] > printable: + self._selection[TOPLEVEL] = printable - 1 + + def _drawTopLevel(self, popup, width, height): + labelwidth, printable = self._calculateTopLevelWidths(width) + children = self._rootItem.getChildren()[self._first[TOPLEVEL]:self._first[TOPLEVEL] + printable] + + top = 1 + left = 1 + for (index, item) in enumerate(children): + labelformat = curses.A_STANDOUT if index == self._selection[TOPLEVEL] else curses.A_NORMAL + + popup.addch(top, left, curses.ACS_VLINE) + left = left + 1 + popup.addstr(top, left, item.getLabel().center(labelwidth), labelformat) + left = left + labelwidth + + popup.addch(top, left, curses.ACS_VLINE) + left = left + 1 + + def _cascadeNLevel(self): + parent = self._getCurrentItem() + + if parent.isLeaf(): + return (False, []) + + self._appendLevel() + + labelwidth = self._calculateNLevelWidths(level=PARENTLEVEL) + printable = self._calculateNLevelHeights(level=PARENTLEVEL) + + toplabelwidth, _ = self._calculateTopLevelWidths() + left = (toplabelwidth + 2) * self._selection[TOPLEVEL] + + popup, width, height = cli.popups.init(height=printable+2, width=labelwidth+2, top=2, left=left) + + while self._getCurrentItem().isEnabled() == False: + self._moveNLevelDown(height) + + if popup.win: + returnkeys = [] + try: + while True: + popup.win.erase() + popup.win.box() + + self._drawNLevel(popup, width, height) + + popup.win.refresh() + + control = cli.controller.getController() + key = control.getScreen().getch() + + if key == curses.KEY_DOWN: + self._moveNLevelDown(height) + elif key == curses.KEY_UP: + self._moveNLevelUp(height) + elif key == curses.KEY_RIGHT: + cascaded, returnkeys = self._cascadeNLevel() + if cascaded == False: + index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] + 1 + returnkeys.append(ord('n')) + for i in range(index): + returnkeys.append(curses.KEY_RIGHT) + returnkeys.append(curses.KEY_DOWN) + break + elif key == curses.KEY_LEFT: + index = self._first[TOPLEVEL] + self._selection[TOPLEVEL] - 1 + index = index % self._rootItem.getChildrenCount() + returnkeys.append(ord('n')) + for i in range(index): + returnkeys.append(curses.KEY_RIGHT) + returnkeys.append(curses.KEY_DOWN) + break + elif key == 27: + self._removeLevel() + break + elif uiTools.isSelectionKey(key): + returnkey = self._handleEvent() + if returnkey: + returnkeys.append(returnkey) + self._removeLevel() + break + + finally: + cli.popups.finalize() + + return (True, returnkeys) + + return (False, []) + + def _drawNLevel(self, popup, width, height): + printable = self._calculateNLevelHeights(level=PARENTLEVEL) + parent = self._getCurrentItem(level=PARENTLEVEL) + children = parent.getChildren()[self._first[PARENTLEVEL]:self._first[PARENTLEVEL] + printable] + + top = 1 + left = 1 + for (index, item) in enumerate(children): + labelformat = curses.A_STANDOUT if index == self._selection[PARENTLEVEL] else curses.A_NORMAL + + if not item.isEnabled(): + labelformat = labelformat | uiTools.getColor('yellow') + + popup.addstr(top, left, item.getLabel(), labelformat) + top = top + 1 + + def _moveNLevelDown(self, height): + printable = self._calculateNLevelHeights(level=PARENTLEVEL) + parent = self._getCurrentItem(level=PARENTLEVEL) + + if self._selection[PARENTLEVEL] < printable - 1: + self._selection[PARENTLEVEL] = self._selection[PARENTLEVEL] + 1 + else: + self._selection[PARENTLEVEL] = 0 + if printable < parent.getChildrenCount(): + self._first[PARENTLEVEL] = (self._first[PARENTLEVEL] + printable) % parent.getChildrenCount() + + if self._first[PARENTLEVEL] + self._selection[PARENTLEVEL] == parent.getChildrenCount(): + self._first[PARENTLEVEL] = 0 + self._selection[PARENTLEVEL] = 0 + + while self._getCurrentItem().isEnabled() == False: + self._moveNLevelDown(height) + + def _moveNLevelUp(self, height): + printable = self._calculateNLevelHeights(level=PARENTLEVEL) + parent = self._getCurrentItem(level=PARENTLEVEL) + + if self._selection[PARENTLEVEL] > 0: + self._selection[PARENTLEVEL] = self._selection[PARENTLEVEL] - 1 + else: + if self._first[PARENTLEVEL] == 0: + self._first[PARENTLEVEL] = ((parent.getChildrenCount() / printable) * printable) % parent.getChildrenCount() + else: + self._first[PARENTLEVEL] = abs(self._first[PARENTLEVEL] - printable) % parent.getChildrenCount() + self._selection[PARENTLEVEL] = parent.getChildrenCount() - self._first[PARENTLEVEL] - 1 + + if self._selection[PARENTLEVEL] > printable: + self._selection[PARENTLEVEL] = printable - 1 + + while self._getCurrentItem().isEnabled() == False: + self._moveNLevelUp(height) + + def _handleEvent(self): + item = self._getCurrentItem() + + if item.isLeaf(): + return item.select() + else: + self._cascadeNLevel() + + def _callbackDefault(self, item): + log.log(log.NOTICE, "%s selected" % item.getLabel()) + + def _callbackView(self, panelname): + control = cli.controller.getController() + + start = control.getPage() + panels = control.getDisplayPanels(includeSticky=False) + panelnames = [panel.getName() for panel in panels] + while not panelname in panelnames: + control.nextPage() + panels = control.getDisplayPanels(includeSticky=False) + panelnames = [panel.getName() for panel in panels] + + if control.getPage() == start: + log.log(log.ERR, "Panel %s not found" % panelname) + break + + def _getItemEnabled(self, panel, attr, value): + control = cli.controller.getController() + if control: + panel = control.getPanel(panel) + + if panel: + return getattr(panel, attr, None) != value + + return False + + def _callbackSet(self, panel, attr, value, key=None): + control = cli.controller.getController() + panel = control.getPanel(panel) + + panelattr = getattr(panel, attr, None) + + if panelattr != None: + if hasattr(panelattr, '__call__'): + panelattr(value) + elif panelattr != value and key != None: + start = panelattr + while panelattr != value: + panel.handleKey(key) + panelattr = getattr(panel, attr, None) + if panelattr == start: + log.log(log.ERR, "Could not set %s.%s" % (panel, attr)) + break + + def _callbackPressKey(self, panel, key): + control = cli.controller.getController() + panel = control.getPanel(panel) + panel.handleKey(key) + + def _callbackReturnKey(self, key): + return key + diff --git a/src/cli/menu_alt/menuItem.py b/src/cli/menu_alt/menuItem.py new file mode 100644 index 0000000..277c78a --- /dev/null +++ b/src/cli/menu_alt/menuItem.py @@ -0,0 +1,41 @@ +""" +Menu Item class, used by the drop-down menus. +""" + +class MenuItem(): + """ + Contains title, callback handler and possible children. + """ + + def __init__(self, label=None, callback=None, children=[], enabled=None): + self._label = label + self._callback = callback + self._children = children + self._enabled = enabled + + def getLabel(self): + return self._label + + def isLeaf(self): + return self._children == [] + + def isParent(self): + return self._children != [] + + def isEnabled(self): + if self._enabled == None: + return True + elif hasattr(self._enabled, '__call__'): + return self._enabled() + else: + return self._enabled + + def getChildren(self): + return self._children + + def getChildrenCount(self): + return len(self._children) + + def select(self): + return self._callback(self) + diff --git a/src/util/menuItem.py b/src/util/menuItem.py deleted file mode 100644 index 277c78a..0000000 --- a/src/util/menuItem.py +++ /dev/null @@ -1,41 +0,0 @@ -""" -Menu Item class, used by the drop-down menus. -""" - -class MenuItem(): - """ - Contains title, callback handler and possible children. - """ - - def __init__(self, label=None, callback=None, children=[], enabled=None): - self._label = label - self._callback = callback - self._children = children - self._enabled = enabled - - def getLabel(self): - return self._label - - def isLeaf(self): - return self._children == [] - - def isParent(self): - return self._children != [] - - def isEnabled(self): - if self._enabled == None: - return True - elif hasattr(self._enabled, '__call__'): - return self._enabled() - else: - return self._enabled - - def getChildren(self): - return self._children - - def getChildrenCount(self): - return len(self._children) - - def select(self): - return self._callback(self) - [View Less]

1 0

[arm/master] Minor api, formatting, and documentation changes
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit b5c7dca851bb7f1e13c90bd667136398fa89ce01 Author: Damian Johnson <atagar(a)torproject.org> Date: Tue May 31 20:50:03 2011 -0700 Minor api, formatting, and documentation changes Revising some of the merged changes for the menus. --- src/cli/controller.py | 10 +++------- src/cli/popups.py | 15 +++++---------- src/util/menuItem.py | 22 ++++++++++++---------- src/util/panel.py | 25 +++++++++++++++++-------- 4 files changed, 37 insertions(+), 35 … [View More]deletions(-) diff --git a/src/cli/controller.py b/src/cli/controller.py index bb258c3..fcbaed5 100644 --- a/src/cli/controller.py +++ b/src/cli/controller.py @@ -7,6 +7,7 @@ import time import curses import threading +import cli.menu import cli.popups import cli.headerPanel import cli.logPanel @@ -17,7 +18,6 @@ import cli.graphing.bandwidthStats import cli.graphing.connStats import cli.graphing.resourceStats import cli.connections.connPanel -import cli.menu from util import connections, conf, enum, log, panel, sysTools, torConfig, torTools @@ -77,9 +77,6 @@ def initController(stdscr, startTime): # fourth page: torrc pagePanels.append([cli.torrcPanel.TorrcPanel(stdscr, cli.torrcPanel.Config.TORRC, config)]) - # top menu - menu = cli.menu.Menu() - # initializes the controller ARM_CONTROLLER = Controller(stdscr, stickyPanels, pagePanels) @@ -110,7 +107,7 @@ class LabelPanel(panel.Panel): """ def __init__(self, stdscr): - panel.Panel.__init__(self, stdscr, "msg", 0, 1) + panel.Panel.__init__(self, stdscr, "msg", 0, height=1) self.msgText = "" self.msgAttr = curses.A_NORMAL @@ -144,7 +141,6 @@ class Controller: stdscr - curses window stickyPanels - panels shown at the top of each page pagePanels - list of pages, each being a list of the panels on it - menu - popup drop-down menu """ self._screen = stdscr @@ -304,7 +300,7 @@ class Controller: if attr == None: if not self._isPaused: - msg = "page %i / %i - m: menu, q: quit, p: pause, h: page help" % (self._page + 1, len(self._pagePanels)) + msg = "page %i / %i - m: menu, p: pause, h: page help, q: quit" % (self._page + 1, len(self._pagePanels)) attr = curses.A_NORMAL else: msg = "Paused" diff --git a/src/cli/popups.py b/src/cli/popups.py index b3eb105..0e50aa1 100644 --- a/src/cli/popups.py +++ b/src/cli/popups.py @@ -8,7 +8,7 @@ import cli.controller from util import panel, uiTools -def init(height = -1, width = -1, top = -1, left = -1): +def init(height = -1, width = -1, top = 0, left = 0): """ Preparation for displaying a popup. This creates a popup with a valid subwindow instance. If that's successful then the curses lock is acquired @@ -19,19 +19,14 @@ def init(height = -1, width = -1, top = -1, left = -1): Arguments: height - maximum height of the popup width - maximum width of the popup + top - top position, relative to the sticky content + left - left position from the screen """ control = cli.controller.getController() - topSize = sum(stickyPanel.getHeight() for stickyPanel in control.getStickyPanels()) - leftSize = 0 - - if top != -1: - topSize = topSize + top - if left != -1: - leftSize = left + stickyHeight = sum(stickyPanel.getHeight() for stickyPanel in control.getStickyPanels()) - popup = panel.Panel(control.getScreen(), "popup", topSize, height, width) - popup.setLeft(leftSize) + popup = panel.Panel(control.getScreen(), "popup", top + stickyHeight, left, height, width) popup.setVisible(True) # Redraws the popup to prepare a subwindow instance. If none is spawned then diff --git a/src/util/menuItem.py b/src/util/menuItem.py index b48c433..277c78a 100644 --- a/src/util/menuItem.py +++ b/src/util/menuItem.py @@ -1,25 +1,27 @@ """ -Menu Item class, used by the drop-down menus +Menu Item class, used by the drop-down menus. """ class MenuItem(): - """Contains title, callback handler and possible children""" - + """ + Contains title, callback handler and possible children. + """ + def __init__(self, label=None, callback=None, children=[], enabled=None): self._label = label self._callback = callback self._children = children self._enabled = enabled - + def getLabel(self): return self._label - + def isLeaf(self): return self._children == [] - + def isParent(self): return self._children != [] - + def isEnabled(self): if self._enabled == None: return True @@ -27,13 +29,13 @@ class MenuItem(): return self._enabled() else: return self._enabled - + def getChildren(self): return self._children - + def getChildrenCount(self): return len(self._children) - + def select(self): return self._callback(self) diff --git a/src/util/panel.py b/src/util/panel.py index 4fc2158..93b44c2 100644 --- a/src/util/panel.py +++ b/src/util/panel.py @@ -43,7 +43,7 @@ class Panel(): redraw(). """ - def __init__(self, parent, name, top, height=-1, width=-1): + def __init__(self, parent, name, top, left=0, height=-1, width=-1): """ Creates a durable wrapper for a curses subwindow in the given parent. @@ -51,6 +51,7 @@ class Panel(): parent - parent curses window name - identifier for the panel top - positioning of top within parent + left - positioning of the left edge within the parent height - maximum height of panel (uses all available space if -1) width - maximum width of panel (uses all available space if -1) """ @@ -74,7 +75,7 @@ class Panel(): self.pauseTime = -1 self.top = top - self.left = 0 + self.left = left self.height = height self.width = width @@ -256,25 +257,33 @@ class Panel(): self.top = top self.win = None - def getHeight(self): + def getLeft(self): """ - Provides the height used for subwindows (-1 if it isn't limited). + Provides the left position where this subwindow is placed within its + parent. """ - return self.height - + return self.left + def setLeft(self, left): """ - Changes the position where subwindows are placed within its parent. + Changes the left position where this subwindow is placed within its parent. Arguments: - top - positioning of top within parent + left - positioning of top within parent """ if self.left != left: self.left = left self.win = None + def getHeight(self): + """ + Provides the height used for subwindows (-1 if it isn't limited). + """ + + return self.height + def setHeight(self, height): """ Changes the height used for subwindows. This uses all available space if -1. [View Less]

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[arm/master] Alternative menu implementation
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit c1aecf68b13bf2eb12a104b98dab9dde6a2a46f0 Author: Damian Johnson <atagar(a)torproject.org> Date: Sat Jun 4 13:52:09 2011 -0700 Alternative menu implementation This is a smaller and (I think) simpler implementation of a menu. Its model and presentation logic are done so the menu can be opened and used, but handlers haven't been attached yet so nothing happens when a selection is made. --- README | 5 + src/cli/controller.py | 5 +… [View More]- src/cli/menu/__init__.py | 6 ++ src/cli/menu/item.py | 146 ++++++++++++++++++++++++++++++ src/cli/menu/menu.py | 222 ++++++++++++++++++++++++++++++++++++++++++++++ src/cli/popups.py | 15 ++-- src/util/panel.py | 2 +- 7 files changed, 393 insertions(+), 8 deletions(-) diff --git a/README b/README index b20ec1c..0f26163 100644 --- a/README +++ b/README @@ -176,6 +176,11 @@ Layout: connEntry.py - individual connections to or from the system entries.py - common parent for connPanel display entries + menu/ + __init__.py + menu.py - provides an interactive menu + item.py - individual items within the menu + __init__.py controller.py - main display loop, handling input and layout headerPanel.py - top of all pages, providing general information diff --git a/src/cli/controller.py b/src/cli/controller.py index fcbaed5..fac43a4 100644 --- a/src/cli/controller.py +++ b/src/cli/controller.py @@ -8,6 +8,7 @@ import curses import threading import cli.menu +import cli.menu.menu import cli.popups import cli.headerPanel import cli.logPanel @@ -510,7 +511,7 @@ def drawTorMonitor(stdscr, startTime): control.prevPage() elif key == ord('p') or key == ord('P'): control.setPaused(not control.isPaused()) - elif key == ord('m') or key == ord('M'): + elif key == ord('n') or key == ord('N'): menu = cli.menu.Menu() menuKeys = menu.showMenu(keys=menuKeys) if menuKeys != []: @@ -518,6 +519,8 @@ def drawTorMonitor(stdscr, startTime): if key in menuKeys: menuKeys.remove(key) overrideKey = key + elif key == ord('m') or key == ord('M'): + cli.menu.menu.showMenu() elif key == ord('q') or key == ord('Q'): # provides prompt to confirm that arm should exit if CONFIG["features.confirmQuit"]: diff --git a/src/cli/menu/__init__.py b/src/cli/menu/__init__.py new file mode 100644 index 0000000..e6b5f10 --- /dev/null +++ b/src/cli/menu/__init__.py @@ -0,0 +1,6 @@ +""" +Resources for displaying the menu. +""" + +__all__ = ["item", "menu"] + diff --git a/src/cli/menu/item.py b/src/cli/menu/item.py new file mode 100644 index 0000000..bfc7ffd --- /dev/null +++ b/src/cli/menu/item.py @@ -0,0 +1,146 @@ +""" +Menu item, representing an option in the drop-down menu. +""" + +class MenuItem(): + """ + Option in a drop-down menu. + """ + + def __init__(self, label, callback): + self._label = label + self._callback = callback + self._parent = None + + def getLabel(self): + """ + Provides a tuple of three strings representing the prefix, label, and + suffix for this item. + """ + + return ("", self._label, "") + + def getParent(self): + """ + Provides the Submenu we're contained within. + """ + + return self._parent + + def getHierarchy(self): + """ + Provides a list with all of our parents, up to the root. + """ + + myHierarchy = [self] + while myHierarchy[-1].getParent(): + myHierarchy.append(myHierarchy[-1].getParent()) + + myHierarchy.reverse() + return myHierarchy + + def getRoot(self): + """ + Provides the base submenu we belong to. + """ + + if self._parent: return self._parent.getRoot() + else: return self + + def select(self): + """ + Performs the callback for the menu item, returning true if we should close + the menu and false otherwise. + """ + + if self._callback: return self._callback() + else: return False + + def next(self): + """ + Provides the next option for the submenu we're in, raising a ValueError + if we don't have a parent. + """ + + return self._getSibling(1) + + def prev(self): + """ + Provides the previous option for the submenu we're in, raising a ValueError + if we don't have a parent. + """ + + return self._getSibling(-1) + + def _getSibling(self, offset): + """ + Provides our sibling with a given index offset from us, raising a + ValueError if we don't have a parent. + + Arguments: + offset - index offset for the sibling to be returned + """ + + if self._parent: + mySiblings = self._parent.getChildren() + + try: + myIndex = mySiblings.index(self) + return mySiblings[(myIndex + offset) % len(mySiblings)] + except ValueError: + # We expect a bidirectional references between submenus and their + # children. If we don't have this then our menu's screwed up. + + msg = "The '%s' submenu doesn't contain '%s' (children: '%s')" % (self, self._parent, "', '".join(mySiblings)) + raise ValueError(msg) + else: raise ValueError("Menu option '%s' doesn't have a parent" % self) + + def __str__(self): + return self._label + +class Submenu(MenuItem): + """ + Menu item that lists other menu options. + """ + + def __init__(self, label): + MenuItem.__init__(self, label, None) + self._children = [] + + def getLabel(self): + """ + Provides our label with a ">" suffix to indicate that we have suboptions. + """ + + myLabel = MenuItem.getLabel(self)[1] + return ("", myLabel, " >") + + def add(self, menuItem): + """ + Adds the given menu item to our listing. This raises a ValueError if the + item already has a parent. + + Arguments: + menuItem - menu option to be added + """ + + if menuItem.getParent(): + raise ValueError("Menu option '%s' already has a parent" % menuItem) + else: + menuItem._parent = self + self._children.append(menuItem) + + def getChildren(self): + """ + Provides the menu and submenus we contain. + """ + + return list(self._children) + + def isEmpty(self): + """ + True if we have no children, false otherwise. + """ + + return not bool(self._children) + diff --git a/src/cli/menu/menu.py b/src/cli/menu/menu.py new file mode 100644 index 0000000..02f87ee --- /dev/null +++ b/src/cli/menu/menu.py @@ -0,0 +1,222 @@ + +import curses + +import cli.popups +import cli.controller +import cli.menu.item + +from util import uiTools + +def makeMenu(): + """ + Constructs the base menu and all of its contents. + """ + + baseMenu = cli.menu.item.Submenu("") + + fileMenu = cli.menu.item.Submenu("File") + fileMenu.add(cli.menu.item.MenuItem("Exit", None)) + baseMenu.add(fileMenu) + + logsMenu = cli.menu.item.Submenu("Logs") + logsMenu.add(cli.menu.item.MenuItem("Events", None)) + logsMenu.add(cli.menu.item.MenuItem("Clear", None)) + logsMenu.add(cli.menu.item.MenuItem("Save", None)) + logsMenu.add(cli.menu.item.MenuItem("Filter", None)) + + duplicatesSubmenu = cli.menu.item.Submenu("Duplicates") + duplicatesSubmenu.add(cli.menu.item.MenuItem("Hidden", None)) + duplicatesSubmenu.add(cli.menu.item.MenuItem("Visible", None)) + logsMenu.add(duplicatesSubmenu) + baseMenu.add(logsMenu) + + viewMenu = cli.menu.item.Submenu("View") + viewMenu.add(cli.menu.item.MenuItem("Graph", None)) + viewMenu.add(cli.menu.item.MenuItem("Connections", None)) + viewMenu.add(cli.menu.item.MenuItem("Configuration", None)) + viewMenu.add(cli.menu.item.MenuItem("Configuration File", None)) + baseMenu.add(viewMenu) + + graphMenu = cli.menu.item.Submenu("Graph") + graphMenu.add(cli.menu.item.MenuItem("Stats", None)) + + sizeSubmenu = cli.menu.item.Submenu("Size") + sizeSubmenu.add(cli.menu.item.MenuItem("Increase", None)) + sizeSubmenu.add(cli.menu.item.MenuItem("Decrease", None)) + graphMenu.add(sizeSubmenu) + + graphMenu.add(cli.menu.item.MenuItem("Update Interval", None)) + + boundsSubmenu = cli.menu.item.Submenu("Bounds") + boundsSubmenu.add(cli.menu.item.MenuItem("Local Max", None)) + boundsSubmenu.add(cli.menu.item.MenuItem("Global Max", None)) + boundsSubmenu.add(cli.menu.item.MenuItem("Tight", None)) + graphMenu.add(boundsSubmenu) + baseMenu.add(graphMenu) + + connectionsMenu = cli.menu.item.Submenu("Connections") + connectionsMenu.add(cli.menu.item.MenuItem("Identity", None)) + connectionsMenu.add(cli.menu.item.MenuItem("Resolver", None)) + connectionsMenu.add(cli.menu.item.MenuItem("Sort Order", None)) + baseMenu.add(connectionsMenu) + + configurationMenu = cli.menu.item.Submenu("Configuration") + + commentsSubmenu = cli.menu.item.Submenu("Comments") + commentsSubmenu.add(cli.menu.item.MenuItem("Hidden", None)) + commentsSubmenu.add(cli.menu.item.MenuItem("Visible", None)) + configurationMenu.add(commentsSubmenu) + + configurationMenu.add(cli.menu.item.MenuItem("Reload", None)) + configurationMenu.add(cli.menu.item.MenuItem("Reset Tor", None)) + baseMenu.add(configurationMenu) + + return baseMenu + +class MenuCursor: + """ + Tracks selection and key handling in the menu. + """ + + def __init__(self, initialSelection): + self._selection = initialSelection + self._isDone = False + + def isDone(self): + """ + Provides true if a selection has indicated that we should close the menu. + False otherwise. + """ + + return self._isDone + + def getSelection(self): + """ + Provides the currently selected menu item. + """ + + return self._selection + + def handleKey(self, key): + isSelectionSubmenu = isinstance(self._selection, cli.menu.item.Submenu) + selectionHierarchy = self._selection.getHierarchy() + + if uiTools.isSelectionKey(key): + if isSelectionSubmenu: + if not self._selection.isEmpty(): + self._selection = self._selection.getChildren()[0] + else: self._isDone = self._selection.select() + elif key == curses.KEY_UP: + self._selection = self._selection.prev() + elif key == curses.KEY_DOWN: + self._selection = self._selection.next() + elif key == curses.KEY_LEFT: + if len(selectionHierarchy) <= 3: + # shift to the previous main submenu + prevSubmenu = selectionHierarchy[1].prev() + self._selection = prevSubmenu.getChildren()[0] + else: + # go up a submenu level + self._selection = self._selection.getParent() + elif key == curses.KEY_RIGHT: + if isSelectionSubmenu: + # open submenu (same as making a selection) + if not self._selection.isEmpty(): + self._selection = self._selection.getChildren()[0] + else: + # shift to the next main submenu + nextSubmenu = selectionHierarchy[1].next() + self._selection = nextSubmenu.getChildren()[0] + elif key in (27, ord('m'), ord('M')): + # close menu + self._isDone = True + +def showMenu(): + popup, _, _ = cli.popups.init(1, belowStatic = False) + if not popup: return + control = cli.controller.getController() + + try: + # generates the menu and uses the initial selection of the first item in + # the file menu + menu = makeMenu() + cursor = MenuCursor(menu.getChildren()[0].getChildren()[0]) + + while not cursor.isDone(): + # sets the background color + popup.win.clear() + popup.win.bkgd(' ', curses.A_STANDOUT | uiTools.getColor("red")) + selectionHierarchy = cursor.getSelection().getHierarchy() + + # renders the menu bar, noting where the open submenu is positioned + drawLeft, selectionLeft = 0, 0 + + for topLevelItem in menu.getChildren(): + drawFormat = curses.A_BOLD + if topLevelItem == selectionHierarchy[1]: + drawFormat |= curses.A_UNDERLINE + selectionLeft = drawLeft + + drawLabel = " %s " % topLevelItem.getLabel()[1] + popup.addstr(0, drawLeft, drawLabel, drawFormat) + popup.addch(0, drawLeft + len(drawLabel), curses.ACS_VLINE) + + drawLeft += len(drawLabel) + 1 + + # recursively shows opened submenus + _drawSubmenu(cursor, 1, 1, selectionLeft) + + popup.win.refresh() + + key = control.getScreen().getch() + cursor.handleKey(key) + + # redraws the rest of the interface if we're rendering on it again + if not cursor.isDone(): + for panelImpl in control.getDisplayPanels(): + panelImpl.redraw(True) + finally: cli.popups.finalize() + +def _drawSubmenu(cursor, level, top, left): + selectionHierarchy = cursor.getSelection().getHierarchy() + + # checks if there's nothing to display + if len(selectionHierarchy) < level + 2: return + + # fetches the submenu and selection we're displaying + submenu = selectionHierarchy[level] + selection = selectionHierarchy[level + 1] + + # gets the size of the prefix, middle, and suffix columns + allLabelSets = [entry.getLabel() for entry in submenu.getChildren()] + prefixColSize = max([len(entry[0]) for entry in allLabelSets]) + middleColSize = max([len(entry[1]) for entry in allLabelSets]) + suffixColSize = max([len(entry[2]) for entry in allLabelSets]) + + # formatted string so we can display aligned menu entries + labelFormat = " %%-%is%%-%is%%-%is " % (prefixColSize, middleColSize, suffixColSize) + menuWidth = len(labelFormat % ("", "", "")) + + popup, _, _ = cli.popups.init(len(submenu.getChildren()), menuWidth, top, left, belowStatic = False) + if not popup: return + + try: + # sets the background color + popup.win.bkgd(' ', curses.A_STANDOUT | uiTools.getColor("red")) + + drawTop, selectionTop = 0, 0 + for menuItem in submenu.getChildren(): + if menuItem == selection: + drawFormat = curses.A_BOLD | uiTools.getColor("white") + selectionTop = drawTop + else: drawFormat = curses.A_NORMAL + + popup.addstr(drawTop, 0, labelFormat % menuItem.getLabel(), drawFormat) + drawTop += 1 + + popup.win.refresh() + + # shows the next submenu + _drawSubmenu(cursor, level + 1, top + selectionTop, left + menuWidth) + finally: cli.popups.finalize() + diff --git a/src/cli/popups.py b/src/cli/popups.py index 0e50aa1..b90f95d 100644 --- a/src/cli/popups.py +++ b/src/cli/popups.py @@ -8,7 +8,7 @@ import cli.controller from util import panel, uiTools -def init(height = -1, width = -1, top = 0, left = 0): +def init(height = -1, width = -1, top = 0, left = 0, belowStatic = True): """ Preparation for displaying a popup. This creates a popup with a valid subwindow instance. If that's successful then the curses lock is acquired @@ -17,14 +17,17 @@ def init(height = -1, width = -1, top = 0, left = 0): Otherwise this leaves curses unlocked and returns None. Arguments: - height - maximum height of the popup - width - maximum width of the popup - top - top position, relative to the sticky content - left - left position from the screen + height - maximum height of the popup + width - maximum width of the popup + top - top position, relative to the sticky content + left - left position from the screen + belowStatic - positions popup below static content if true """ control = cli.controller.getController() - stickyHeight = sum(stickyPanel.getHeight() for stickyPanel in control.getStickyPanels()) + if belowStatic: + stickyHeight = sum(stickyPanel.getHeight() for stickyPanel in control.getStickyPanels()) + else: stickyHeight = 0 popup = panel.Panel(control.getScreen(), "popup", top + stickyHeight, left, height, width) popup.setVisible(True) diff --git a/src/util/panel.py b/src/util/panel.py index 93b44c2..6fae341 100644 --- a/src/util/panel.py +++ b/src/util/panel.py @@ -484,7 +484,7 @@ class Panel(): # direction) from actual content to prevent crash when shrank if self.win and self.maxX > x and self.maxY > y: try: - self.win.addstr(y, x, msg[:self.maxX - x - 1], attr) + self.win.addstr(y, x, msg[:self.maxX - x], attr) except: # this might produce a _curses.error during edge cases, for instance # when resizing with visible popups [View Less]

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[arm/master] fix: var misspelling crashed descriptor popup
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit 823630f38f2cdc616dcd9907ff9be75584366126 Author: Damian Johnson <atagar(a)torproject.org> Date: Thu May 26 07:27:25 2011 -0700 fix: var misspelling crashed descriptor popup --- src/cli/descriptorPopup.py | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/cli/descriptorPopup.py b/src/cli/descriptorPopup.py index e73e9fc..f75d7e6 100644 --- a/src/cli/descriptorPopup.py +++ b/src/cli/descriptorPopup.py @@ -104,7 +104,7 @@ def showDescriptorPopup(… [View More]

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[arm/master] fix: updating bandwidth graph on shutdown
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit 3cfa3533d3ce1e2ac24b382bc310710c5e02ee00 Author: Damian Johnson <atagar(a)torproject.org> Date: Thu May 26 08:22:43 2011 -0700 fix: updating bandwidth graph on shutdown If we have accounting and shut down Tor the accounting section should say "Connection Closed...". However, this wasn't happening unless we forced a redraw, such as by changing pages. This change makes the bandwidthStats initiate a redraw itself on controller status changes. --- src/cli/… [View More]

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[arm/master] Initial commit for the menu code. Currently displays a top-bar in a
by atagar＠torproject.org 04 Jun '11

04 Jun '11

commit 5fd9b5f74a86eb7e641366ae1c0a1a47404cf873 Author: Kamran Riaz Khan <krkhan(a)inspirated.com> Date: Fri May 27 18:01:25 2011 +0500 Initial commit for the menu code. Currently displays a top-bar in a popup and dispatches the menu entry to the callback function, which shall later on be used to determine the panel/key combination for taking specified action. --- src/cli/controller.py | 18 +++++++- src/cli/menu.py | 99 +++++++++++++++++++++++++++++++++++++++… [View More]++++++++++ 2 files changed, 114 insertions(+), 3 deletions(-) diff --git a/src/cli/controller.py b/src/cli/controller.py index e94f7f6..c506302 100644 --- a/src/cli/controller.py +++ b/src/cli/controller.py @@ -17,6 +17,7 @@ import cli.graphing.bandwidthStats import cli.graphing.connStats import cli.graphing.resourceStats import cli.connections.connPanel +import cli.menu from util import connections, conf, enum, log, panel, sysTools, torConfig, torTools @@ -76,8 +77,11 @@ def initController(stdscr, startTime): # fourth page: torrc pagePanels.append([cli.torrcPanel.TorrcPanel(stdscr, cli.torrcPanel.Config.TORRC, config)]) + # top menu + menu = cli.menu.Menu() + # initializes the controller - ARM_CONTROLLER = Controller(stdscr, stickyPanels, pagePanels) + ARM_CONTROLLER = Controller(stdscr, stickyPanels, pagePanels, menu) # additional configuration for the graph panel graphPanel = ARM_CONTROLLER.getPanel("graph") @@ -131,7 +135,7 @@ class Controller: Tracks the global state of the interface """ - def __init__(self, stdscr, stickyPanels, pagePanels): + def __init__(self, stdscr, stickyPanels, pagePanels, menu): """ Creates a new controller instance. Panel lists are ordered as they appear, top to bottom on the page. @@ -140,11 +144,13 @@ class Controller: stdscr - curses window stickyPanels - panels shown at the top of each page pagePanels - list of pages, each being a list of the panels on it + menu - popup drop-down menu """ self._screen = stdscr self._stickyPanels = stickyPanels self._pagePanels = pagePanels + self._menu = menu self._page = 0 self._isPaused = False self._forceRedraw = False @@ -182,6 +188,9 @@ class Controller: self._forceRedraw = True self.setMsg() + def getMenu(self): + return self._menu + def isPaused(self): """ True if the interface is paused, false otherwise. @@ -299,7 +308,7 @@ class Controller: if attr == None: if not self._isPaused: - msg = "page %i / %i - q: quit, p: pause, h: page help" % (self._page + 1, len(self._pagePanels)) + msg = "page %i / %i - m: menu, q: quit, p: pause, h: page help" % (self._page + 1, len(self._pagePanels)) attr = curses.A_NORMAL else: msg = "Paused" @@ -507,6 +516,9 @@ def drawTorMonitor(stdscr, startTime): control.prevPage() elif key == ord('p') or key == ord('P'): control.setPaused(not control.isPaused()) + elif key == ord('m') or key == ord('M'): + menu = control.getMenu() + menu.draw() elif key == ord('q') or key == ord('Q'): # provides prompt to confirm that arm should exit if CONFIG["features.confirmQuit"]: diff --git a/src/cli/menu.py b/src/cli/menu.py new file mode 100644 index 0000000..315d349 --- /dev/null +++ b/src/cli/menu.py @@ -0,0 +1,99 @@ +""" +A drop-down menu for sending actions to panels. +""" + +import curses +from collections import namedtuple +from operator import attrgetter + +import cli.controller +import popups +from util import log, panel, uiTools + +LeafEntry = namedtuple('LeafEntry', ['title', 'callback']) +ParentEntry = namedtuple('ParentEntry', ['title', 'children']) + +class Menu(): + """Displays a popup menu and sends keys to appropriate panels""" + + def __init__(self, entry=None): + DEFAULT_ROOT = ParentEntry(title="Root", children=( + LeafEntry(title="File" , callback=self._callbackDefault), + LeafEntry(title="Logs" , callback=self._callbackDefault), + LeafEntry(title="View" , callback=self._callbackDefault), + LeafEntry(title="Graph" , callback=self._callbackDefault), + LeafEntry(title="Connections" , callback=self._callbackDefault), + LeafEntry(title="Configuration" , callback=self._callbackDefault))) + + self._selection = [0] + self._rootEntry = (entry and isinstance(entry, ParentEntry)) and entry or DEFAULT_ROOT + + def draw(self): + popup, width, height = popups.init(height=3) + if popup: + try: + popup.win.box() + + while True: + self._drawTopLevel(popup, width, height) + + popup.win.refresh() + + control = cli.controller.getController() + key = control.getScreen().getch() + + if key == curses.KEY_RIGHT: + if len(self._selection) == 1: + # selection is on top menu + self._selection[0] = (self._selection[0] + 1) % len(self._rootEntry.children) + elif key == curses.KEY_LEFT: + if len(self._selection) == 1: + # selection is on top menu + self._selection[0] = (self._selection[0] - 1) % len(self._rootEntry.children) + elif uiTools.isSelectionKey(key): + self._handleEvent() + break + + finally: + popups.finalize() + + def _drawTopLevel(self, popup, width, height): + titles = map(attrgetter('title'), self._rootEntry.children) + + # width per title is set according to the longest title + titlewidth = max(map(lambda title: len(title), titles)) + 2 + + # total number of titles that can be printed in current width + printable = (width - 2) / titlewidth + + top = 1 + left = 1 + for (index, entry) in enumerate(self._rootEntry.children[:printable]): + titleformat = curses.A_NORMAL + + if index == self._selection[0]: + titleformat = curses.A_STANDOUT + + popup.win.addch(top, left, curses.ACS_VLINE) + left = left + 1 + popup.win.addstr(top, left, entry.title.center(titlewidth), titleformat) + left = left + titlewidth + + popup.win.addch(top, left, curses.ACS_VLINE) + left = left + 1 + + def _handleEvent(self): + entry = self._rootEntry + + for index in self._selection: + if isinstance(entry, ParentEntry): + entry = entry.children[index] + else: + break + + if isinstance(entry, LeafEntry): + entry.callback(entry) + + def _callbackDefault(self, entry): + log.log(log.NOTICE, "%s selected" % entry.title) + [View Less]

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