Merge IDLE-syntax-branch r39668:41449 into trunk
A idlelib/AutoCompleteWindow.py
A idlelib/AutoComplete.py
A idlelib/HyperParser.py
M idlelib/PyShell.py
M idlelib/ParenMatch.py
M idlelib/configDialog.py
M idlelib/EditorWindow.py
M idlelib/PyParse.py
M idlelib/CallTips.py
M idlelib/CallTipWindow.py
M idlelib/run.py
M idlelib/config-extensions.def
A idlelib/MultiCall.py
diff --git a/Lib/idlelib/AutoCompleteWindow.py b/Lib/idlelib/AutoCompleteWindow.py
new file mode 100644
index 0000000..d8bbff4
--- /dev/null
+++ b/Lib/idlelib/AutoCompleteWindow.py
@@ -0,0 +1,393 @@
+"""
+An auto-completion window for IDLE, used by the AutoComplete extension
+"""
+from Tkinter import *
+from MultiCall import MC_SHIFT
+import AutoComplete
+
+HIDE_VIRTUAL_EVENT_NAME = "<<autocompletewindow-hide>>"
+HIDE_SEQUENCES = ("<FocusOut>", "<ButtonPress>")
+KEYPRESS_VIRTUAL_EVENT_NAME = "<<autocompletewindow-keypress>>"
+# We need to bind event beyond <Key> so that the function will be called
+# before the default specific IDLE function
+KEYPRESS_SEQUENCES = ("<Key>", "<Key-BackSpace>", "<Key-Return>",
+ "<Key-Up>", "<Key-Down>", "<Key-Home>", "<Key-End>")
+KEYRELEASE_VIRTUAL_EVENT_NAME = "<<autocompletewindow-keyrelease>>"
+KEYRELEASE_SEQUENCE = "<KeyRelease>"
+LISTUPDATE_SEQUENCE = "<ButtonRelease>"
+WINCONFIG_SEQUENCE = "<Configure>"
+DOUBLECLICK_SEQUENCE = "<Double-ButtonRelease>"
+
+class AutoCompleteWindow:
+
+ def __init__(self, widget):
+ # The widget (Text) on which we place the AutoCompleteWindow
+ self.widget = widget
+ # The widgets we create
+ self.autocompletewindow = self.listbox = self.scrollbar = None
+ # The default foreground and background of a selection. Saved because
+ # they are changed to the regular colors of list items when the
+ # completion start is not a prefix of the selected completion
+ self.origselforeground = self.origselbackground = None
+ # The list of completions
+ self.completions = None
+ # A list with more completions, or None
+ self.morecompletions = None
+ # The completion mode. Either AutoComplete.COMPLETE_ATTRIBUTES or
+ # AutoComplete.COMPLETE_FILES
+ self.mode = None
+ # The current completion start, on the text box (a string)
+ self.start = None
+ # The index of the start of the completion
+ self.startindex = None
+ # The last typed start, used so that when the selection changes,
+ # the new start will be as close as possible to the last typed one.
+ self.lasttypedstart = None
+ # Do we have an indication that the user wants the completion window
+ # (for example, he clicked the list)
+ self.userwantswindow = None
+ # event ids
+ self.hideid = self.keypressid = self.listupdateid = self.winconfigid \
+ = self.keyreleaseid = self.doubleclickid = None
+
+ def _change_start(self, newstart):
+ i = 0
+ while i < len(self.start) and i < len(newstart) and \
+ self.start[i] == newstart[i]:
+ i += 1
+ if i < len(self.start):
+ self.widget.delete("%s+%dc" % (self.startindex, i),
+ "%s+%dc" % (self.startindex, len(self.start)))
+ if i < len(newstart):
+ self.widget.insert("%s+%dc" % (self.startindex, i),
+ newstart[i:])
+ self.start = newstart
+
+ def _binary_search(self, s):
+ """Find the first index in self.completions where completions[i] is
+ greater or equal to s, or the last index if there is no such
+ one."""
+ i = 0; j = len(self.completions)
+ while j > i:
+ m = (i + j) // 2
+ if self.completions[m] >= s:
+ j = m
+ else:
+ i = m + 1
+ return min(i, len(self.completions)-1)
+
+ def _complete_string(self, s):
+ """Assuming that s is the prefix of a string in self.completions,
+ return the longest string which is a prefix of all the strings which
+ s is a prefix of them. If s is not a prefix of a string, return s."""
+ first = self._binary_search(s)
+ if self.completions[first][:len(s)] != s:
+ # There is not even one completion which s is a prefix of.
+ return s
+ # Find the end of the range of completions where s is a prefix of.
+ i = first + 1
+ j = len(self.completions)
+ while j > i:
+ m = (i + j) // 2
+ if self.completions[m][:len(s)] != s:
+ j = m
+ else:
+ i = m + 1
+ last = i-1
+
+ # We should return the maximum prefix of first and last
+ i = len(s)
+ while len(self.completions[first]) > i and \
+ len(self.completions[last]) > i and \
+ self.completions[first][i] == self.completions[last][i]:
+ i += 1
+ return self.completions[first][:i]
+
+ def _selection_changed(self):
+ """Should be called when the selection of the Listbox has changed.
+ Updates the Listbox display and calls _change_start."""
+ cursel = int(self.listbox.curselection()[0])
+
+ self.listbox.see(cursel)
+
+ lts = self.lasttypedstart
+ selstart = self.completions[cursel]
+ if self._binary_search(lts) == cursel:
+ newstart = lts
+ else:
+ i = 0
+ while i < len(lts) and i < len(selstart) and lts[i] == selstart[i]:
+ i += 1
+ while cursel > 0 and selstart[:i] <= self.completions[cursel-1]:
+ i += 1
+ newstart = selstart[:i]
+ self._change_start(newstart)
+
+ if self.completions[cursel][:len(self.start)] == self.start:
+ # start is a prefix of the selected completion
+ self.listbox.configure(selectbackground=self.origselbackground,
+ selectforeground=self.origselforeground)
+ else:
+ self.listbox.configure(selectbackground=self.listbox.cget("bg"),
+ selectforeground=self.listbox.cget("fg"))
+ # If there are more completions, show them, and call me again.
+ if self.morecompletions:
+ self.completions = self.morecompletions
+ self.morecompletions = None
+ self.listbox.delete(0, END)
+ for item in self.completions:
+ self.listbox.insert(END, item)
+ self.listbox.select_set(self._binary_search(self.start))
+ self._selection_changed()
+
+ def show_window(self, comp_lists, index, complete, mode, userWantsWin):
+ """Show the autocomplete list, bind events.
+ If complete is True, complete the text, and if there is exactly one
+ matching completion, don't open a list."""
+ # Handle the start we already have
+ self.completions, self.morecompletions = comp_lists
+ self.mode = mode
+ self.startindex = self.widget.index(index)
+ self.start = self.widget.get(self.startindex, "insert")
+ if complete:
+ completed = self._complete_string(self.start)
+ self._change_start(completed)
+ i = self._binary_search(completed)
+ if self.completions[i] == completed and \
+ (i == len(self.completions)-1 or
+ self.completions[i+1][:len(completed)] != completed):
+ # There is exactly one matching completion
+ return
+ self.userwantswindow = userWantsWin
+ self.lasttypedstart = self.start
+
+ # Put widgets in place
+ self.autocompletewindow = acw = Toplevel(self.widget)
+ # Put it in a position so that it is not seen.
+ acw.wm_geometry("+10000+10000")
+ # Make it float
+ acw.wm_overrideredirect(1)
+ try:
+ # This command is only needed and available on Tk >= 8.4.0 for OSX
+ # Without it, call tips intrude on the typing process by grabbing
+ # the focus.
+ acw.tk.call("::tk::unsupported::MacWindowStyle", "style", acw._w,
+ "help", "noActivates")
+ except TclError:
+ pass
+ self.scrollbar = scrollbar = Scrollbar(acw, orient=VERTICAL)
+ self.listbox = listbox = Listbox(acw, yscrollcommand=scrollbar.set,
+ exportselection=False, bg="white")
+ for item in self.completions:
+ listbox.insert(END, item)
+ self.origselforeground = listbox.cget("selectforeground")
+ self.origselbackground = listbox.cget("selectbackground")
+ scrollbar.config(command=listbox.yview)
+ scrollbar.pack(side=RIGHT, fill=Y)
+ listbox.pack(side=LEFT, fill=BOTH, expand=True)
+
+ # Initialize the listbox selection
+ self.listbox.select_set(self._binary_search(self.start))
+ self._selection_changed()
+
+ # bind events
+ self.hideid = self.widget.bind(HIDE_VIRTUAL_EVENT_NAME,
+ self.hide_event)
+ for seq in HIDE_SEQUENCES:
+ self.widget.event_add(HIDE_VIRTUAL_EVENT_NAME, seq)
+ self.keypressid = self.widget.bind(KEYPRESS_VIRTUAL_EVENT_NAME,
+ self.keypress_event)
+ for seq in KEYPRESS_SEQUENCES:
+ self.widget.event_add(KEYPRESS_VIRTUAL_EVENT_NAME, seq)
+ self.keyreleaseid = self.widget.bind(KEYRELEASE_VIRTUAL_EVENT_NAME,
+ self.keyrelease_event)
+ self.widget.event_add(KEYRELEASE_VIRTUAL_EVENT_NAME,KEYRELEASE_SEQUENCE)
+ self.listupdateid = listbox.bind(LISTUPDATE_SEQUENCE,
+ self.listupdate_event)
+ self.winconfigid = acw.bind(WINCONFIG_SEQUENCE, self.winconfig_event)
+ self.doubleclickid = listbox.bind(DOUBLECLICK_SEQUENCE,
+ self.doubleclick_event)
+
+ def winconfig_event(self, event):
+ if not self.is_active():
+ return
+ # Position the completion list window
+ acw = self.autocompletewindow
+ self.widget.see(self.startindex)
+ x, y, cx, cy = self.widget.bbox(self.startindex)
+ acw.wm_geometry("+%d+%d" % (x + self.widget.winfo_rootx(),
+ y + self.widget.winfo_rooty() \
+ -acw.winfo_height()))
+
+
+ def hide_event(self, event):
+ if not self.is_active():
+ return
+ self.hide_window()
+
+ def listupdate_event(self, event):
+ if not self.is_active():
+ return
+ self.userwantswindow = True
+ self._selection_changed()
+
+ def doubleclick_event(self, event):
+ # Put the selected completion in the text, and close the list
+ cursel = int(self.listbox.curselection()[0])
+ self._change_start(self.completions[cursel])
+ self.hide_window()
+
+ def keypress_event(self, event):
+ if not self.is_active():
+ return
+ keysym = event.keysym
+ if hasattr(event, "mc_state"):
+ state = event.mc_state
+ else:
+ state = 0
+
+ if (len(keysym) == 1 or keysym in ("underscore", "BackSpace")
+ or (self.mode==AutoComplete.COMPLETE_FILES and keysym in
+ ("period", "minus"))) \
+ and not (state & ~MC_SHIFT):
+ # Normal editing of text
+ if len(keysym) == 1:
+ self._change_start(self.start + keysym)
+ elif keysym == "underscore":
+ self._change_start(self.start + '_')
+ elif keysym == "period":
+ self._change_start(self.start + '.')
+ elif keysym == "minus":
+ self._change_start(self.start + '-')
+ else:
+ # keysym == "BackSpace"
+ if len(self.start) == 0:
+ self.hide_window()
+ return
+ self._change_start(self.start[:-1])
+ self.lasttypedstart = self.start
+ self.listbox.select_clear(0, int(self.listbox.curselection()[0]))
+ self.listbox.select_set(self._binary_search(self.start))
+ self._selection_changed()
+ return "break"
+
+ elif keysym == "Return" and not state:
+ # If start is a prefix of the selection, or there was an indication
+ # that the user used the completion window, put the selected
+ # completion in the text, and close the list.
+ # Otherwise, close the window and let the event through.
+ cursel = int(self.listbox.curselection()[0])
+ if self.completions[cursel][:len(self.start)] == self.start or \
+ self.userwantswindow:
+ self._change_start(self.completions[cursel])
+ self.hide_window()
+ return "break"
+ else:
+ self.hide_window()
+ return
+
+ elif (self.mode == AutoComplete.COMPLETE_ATTRIBUTES and keysym in
+ ("period", "space", "parenleft", "parenright", "bracketleft",
+ "bracketright")) or \
+ (self.mode == AutoComplete.COMPLETE_FILES and keysym in
+ ("slash", "backslash", "quotedbl", "apostrophe")) \
+ and not (state & ~MC_SHIFT):
+ # If start is a prefix of the selection, but is not '' when
+ # completing file names, put the whole
+ # selected completion. Anyway, close the list.
+ cursel = int(self.listbox.curselection()[0])
+ if self.completions[cursel][:len(self.start)] == self.start \
+ and (self.mode==AutoComplete.COMPLETE_ATTRIBUTES or self.start):
+ self._change_start(self.completions[cursel])
+ self.hide_window()
+ return
+
+ elif keysym in ("Home", "End", "Prior", "Next", "Up", "Down") and \
+ not state:
+ # Move the selection in the listbox
+ self.userwantswindow = True
+ cursel = int(self.listbox.curselection()[0])
+ if keysym == "Home":
+ newsel = 0
+ elif keysym == "End":
+ newsel = len(self.completions)-1
+ elif keysym in ("Prior", "Next"):
+ jump = self.listbox.nearest(self.listbox.winfo_height()) - \
+ self.listbox.nearest(0)
+ if keysym == "Prior":
+ newsel = max(0, cursel-jump)
+ else:
+ assert keysym == "Next"
+ newsel = min(len(self.completions)-1, cursel+jump)
+ elif keysym == "Up":
+ newsel = max(0, cursel-1)
+ else:
+ assert keysym == "Down"
+ newsel = min(len(self.completions)-1, cursel+1)
+ self.listbox.select_clear(cursel)
+ self.listbox.select_set(newsel)
+ self._selection_changed()
+ return "break"
+
+ elif (keysym == "Tab" and not state):
+ # The user wants a completion, but it is handled by AutoComplete
+ # (not AutoCompleteWindow), so ignore.
+ self.userwantswindow = True
+ return
+
+ elif reduce(lambda x, y: x or y,
+ [keysym.find(s) != -1 for s in ("Shift", "Control", "Alt",
+ "Meta", "Command", "Option")
+ ]):
+ # A modifier key, so ignore
+ return
+
+ else:
+ # Unknown event, close the window and let it through.
+ self.hide_window()
+ return
+
+ def keyrelease_event(self, event):
+ if not self.is_active():
+ return
+ if self.widget.index("insert") != \
+ self.widget.index("%s+%dc" % (self.startindex, len(self.start))):
+ # If we didn't catch an event which moved the insert, close window
+ self.hide_window()
+
+ def is_active(self):
+ return self.autocompletewindow is not None
+
+ def complete(self):
+ self._change_start(self._complete_string(self.start))
+ # The selection doesn't change.
+
+ def hide_window(self):
+ if not self.is_active():
+ return
+
+ # unbind events
+ for seq in HIDE_SEQUENCES:
+ self.widget.event_delete(HIDE_VIRTUAL_EVENT_NAME, seq)
+ self.widget.unbind(HIDE_VIRTUAL_EVENT_NAME, self.hideid)
+ self.hideid = None
+ for seq in KEYPRESS_SEQUENCES:
+ self.widget.event_delete(KEYPRESS_VIRTUAL_EVENT_NAME, seq)
+ self.widget.unbind(KEYPRESS_VIRTUAL_EVENT_NAME, self.keypressid)
+ self.keypressid = None
+ self.widget.event_delete(KEYRELEASE_VIRTUAL_EVENT_NAME,
+ KEYRELEASE_SEQUENCE)
+ self.widget.unbind(KEYRELEASE_VIRTUAL_EVENT_NAME, self.keyreleaseid)
+ self.keyreleaseid = None
+ self.listbox.unbind(LISTUPDATE_SEQUENCE, self.listupdateid)
+ self.listupdateid = None
+ self.autocompletewindow.unbind(WINCONFIG_SEQUENCE, self.winconfigid)
+ self.winconfigid = None
+
+ # destroy widgets
+ self.scrollbar.destroy()
+ self.scrollbar = None
+ self.listbox.destroy()
+ self.listbox = None
+ self.autocompletewindow.destroy()
+ self.autocompletewindow = None