| import importlib.abc |
| import importlib.util |
| import os |
| import platform |
| import re |
| import string |
| import sys |
| import tokenize |
| import traceback |
| import webbrowser |
| |
| from tkinter import * |
| from tkinter.font import Font |
| from tkinter.ttk import Scrollbar |
| import tkinter.simpledialog as tkSimpleDialog |
| import tkinter.messagebox as tkMessageBox |
| |
| from idlelib.config import idleConf |
| from idlelib import configdialog |
| from idlelib import grep |
| from idlelib import help |
| from idlelib import help_about |
| from idlelib import macosx |
| from idlelib.multicall import MultiCallCreator |
| from idlelib import pyparse |
| from idlelib import query |
| from idlelib import replace |
| from idlelib import search |
| from idlelib.tree import wheel_event |
| from idlelib import window |
| |
| # The default tab setting for a Text widget, in average-width characters. |
| TK_TABWIDTH_DEFAULT = 8 |
| _py_version = ' (%s)' % platform.python_version() |
| darwin = sys.platform == 'darwin' |
| |
| def _sphinx_version(): |
| "Format sys.version_info to produce the Sphinx version string used to install the chm docs" |
| major, minor, micro, level, serial = sys.version_info |
| release = '%s%s' % (major, minor) |
| release += '%s' % (micro,) |
| if level == 'candidate': |
| release += 'rc%s' % (serial,) |
| elif level != 'final': |
| release += '%s%s' % (level[0], serial) |
| return release |
| |
| |
| class EditorWindow(object): |
| from idlelib.percolator import Percolator |
| from idlelib.colorizer import ColorDelegator, color_config |
| from idlelib.undo import UndoDelegator |
| from idlelib.iomenu import IOBinding, encoding |
| from idlelib import mainmenu |
| from idlelib.statusbar import MultiStatusBar |
| from idlelib.autocomplete import AutoComplete |
| from idlelib.autoexpand import AutoExpand |
| from idlelib.calltip import Calltip |
| from idlelib.codecontext import CodeContext |
| from idlelib.sidebar import LineNumbers |
| from idlelib.format import FormatParagraph, FormatRegion, Indents, Rstrip |
| from idlelib.parenmatch import ParenMatch |
| from idlelib.squeezer import Squeezer |
| from idlelib.zoomheight import ZoomHeight |
| |
| filesystemencoding = sys.getfilesystemencoding() # for file names |
| help_url = None |
| |
| allow_code_context = True |
| allow_line_numbers = True |
| |
| def __init__(self, flist=None, filename=None, key=None, root=None): |
| # Delay import: runscript imports pyshell imports EditorWindow. |
| from idlelib.runscript import ScriptBinding |
| |
| if EditorWindow.help_url is None: |
| dochome = os.path.join(sys.base_prefix, 'Doc', 'index.html') |
| if sys.platform.count('linux'): |
| # look for html docs in a couple of standard places |
| pyver = 'python-docs-' + '%s.%s.%s' % sys.version_info[:3] |
| if os.path.isdir('/var/www/html/python/'): # "python2" rpm |
| dochome = '/var/www/html/python/index.html' |
| else: |
| basepath = '/usr/share/doc/' # standard location |
| dochome = os.path.join(basepath, pyver, |
| 'Doc', 'index.html') |
| elif sys.platform[:3] == 'win': |
| chmfile = os.path.join(sys.base_prefix, 'Doc', |
| 'Python%s.chm' % _sphinx_version()) |
| if os.path.isfile(chmfile): |
| dochome = chmfile |
| elif sys.platform == 'darwin': |
| # documentation may be stored inside a python framework |
| dochome = os.path.join(sys.base_prefix, |
| 'Resources/English.lproj/Documentation/index.html') |
| dochome = os.path.normpath(dochome) |
| if os.path.isfile(dochome): |
| EditorWindow.help_url = dochome |
| if sys.platform == 'darwin': |
| # Safari requires real file:-URLs |
| EditorWindow.help_url = 'file://' + EditorWindow.help_url |
| else: |
| EditorWindow.help_url = ("https://docs.python.org/%d.%d/" |
| % sys.version_info[:2]) |
| self.flist = flist |
| root = root or flist.root |
| self.root = root |
| self.menubar = Menu(root) |
| self.top = top = window.ListedToplevel(root, menu=self.menubar) |
| if flist: |
| self.tkinter_vars = flist.vars |
| #self.top.instance_dict makes flist.inversedict available to |
| #configdialog.py so it can access all EditorWindow instances |
| self.top.instance_dict = flist.inversedict |
| else: |
| self.tkinter_vars = {} # keys: Tkinter event names |
| # values: Tkinter variable instances |
| self.top.instance_dict = {} |
| self.recent_files_path = idleConf.userdir and os.path.join( |
| idleConf.userdir, 'recent-files.lst') |
| |
| self.prompt_last_line = '' # Override in PyShell |
| self.text_frame = text_frame = Frame(top) |
| self.vbar = vbar = Scrollbar(text_frame, name='vbar') |
| width = idleConf.GetOption('main', 'EditorWindow', 'width', type='int') |
| text_options = { |
| 'name': 'text', |
| 'padx': 5, |
| 'wrap': 'none', |
| 'highlightthickness': 0, |
| 'width': width, |
| 'tabstyle': 'wordprocessor', # new in 8.5 |
| 'height': idleConf.GetOption( |
| 'main', 'EditorWindow', 'height', type='int'), |
| } |
| self.text = text = MultiCallCreator(Text)(text_frame, **text_options) |
| self.top.focused_widget = self.text |
| |
| self.createmenubar() |
| self.apply_bindings() |
| |
| self.top.protocol("WM_DELETE_WINDOW", self.close) |
| self.top.bind("<<close-window>>", self.close_event) |
| if macosx.isAquaTk(): |
| # Command-W on editor windows doesn't work without this. |
| text.bind('<<close-window>>', self.close_event) |
| # Some OS X systems have only one mouse button, so use |
| # control-click for popup context menus there. For two |
| # buttons, AquaTk defines <2> as the right button, not <3>. |
| text.bind("<Control-Button-1>",self.right_menu_event) |
| text.bind("<2>", self.right_menu_event) |
| else: |
| # Elsewhere, use right-click for popup menus. |
| text.bind("<3>",self.right_menu_event) |
| |
| text.bind('<MouseWheel>', wheel_event) |
| text.bind('<Button-4>', wheel_event) |
| text.bind('<Button-5>', wheel_event) |
| text.bind('<Configure>', self.handle_winconfig) |
| text.bind("<<cut>>", self.cut) |
| text.bind("<<copy>>", self.copy) |
| text.bind("<<paste>>", self.paste) |
| text.bind("<<center-insert>>", self.center_insert_event) |
| text.bind("<<help>>", self.help_dialog) |
| text.bind("<<python-docs>>", self.python_docs) |
| text.bind("<<about-idle>>", self.about_dialog) |
| text.bind("<<open-config-dialog>>", self.config_dialog) |
| text.bind("<<open-module>>", self.open_module_event) |
| text.bind("<<do-nothing>>", lambda event: "break") |
| text.bind("<<select-all>>", self.select_all) |
| text.bind("<<remove-selection>>", self.remove_selection) |
| text.bind("<<find>>", self.find_event) |
| text.bind("<<find-again>>", self.find_again_event) |
| text.bind("<<find-in-files>>", self.find_in_files_event) |
| text.bind("<<find-selection>>", self.find_selection_event) |
| text.bind("<<replace>>", self.replace_event) |
| text.bind("<<goto-line>>", self.goto_line_event) |
| text.bind("<<smart-backspace>>",self.smart_backspace_event) |
| text.bind("<<newline-and-indent>>",self.newline_and_indent_event) |
| text.bind("<<smart-indent>>",self.smart_indent_event) |
| self.fregion = fregion = self.FormatRegion(self) |
| # self.fregion used in smart_indent_event to access indent_region. |
| text.bind("<<indent-region>>", fregion.indent_region_event) |
| text.bind("<<dedent-region>>", fregion.dedent_region_event) |
| text.bind("<<comment-region>>", fregion.comment_region_event) |
| text.bind("<<uncomment-region>>", fregion.uncomment_region_event) |
| text.bind("<<tabify-region>>", fregion.tabify_region_event) |
| text.bind("<<untabify-region>>", fregion.untabify_region_event) |
| indents = self.Indents(self) |
| text.bind("<<toggle-tabs>>", indents.toggle_tabs_event) |
| text.bind("<<change-indentwidth>>", indents.change_indentwidth_event) |
| text.bind("<Left>", self.move_at_edge_if_selection(0)) |
| text.bind("<Right>", self.move_at_edge_if_selection(1)) |
| text.bind("<<del-word-left>>", self.del_word_left) |
| text.bind("<<del-word-right>>", self.del_word_right) |
| text.bind("<<beginning-of-line>>", self.home_callback) |
| |
| if flist: |
| flist.inversedict[self] = key |
| if key: |
| flist.dict[key] = self |
| text.bind("<<open-new-window>>", self.new_callback) |
| text.bind("<<close-all-windows>>", self.flist.close_all_callback) |
| text.bind("<<open-class-browser>>", self.open_module_browser) |
| text.bind("<<open-path-browser>>", self.open_path_browser) |
| text.bind("<<open-turtle-demo>>", self.open_turtle_demo) |
| |
| self.set_status_bar() |
| text_frame.pack(side=LEFT, fill=BOTH, expand=1) |
| text_frame.rowconfigure(1, weight=1) |
| text_frame.columnconfigure(1, weight=1) |
| vbar['command'] = self.handle_yview |
| vbar.grid(row=1, column=2, sticky=NSEW) |
| text['yscrollcommand'] = vbar.set |
| text['font'] = idleConf.GetFont(self.root, 'main', 'EditorWindow') |
| text.grid(row=1, column=1, sticky=NSEW) |
| text.focus_set() |
| self.set_width() |
| |
| # usetabs true -> literal tab characters are used by indent and |
| # dedent cmds, possibly mixed with spaces if |
| # indentwidth is not a multiple of tabwidth, |
| # which will cause Tabnanny to nag! |
| # false -> tab characters are converted to spaces by indent |
| # and dedent cmds, and ditto TAB keystrokes |
| # Although use-spaces=0 can be configured manually in config-main.def, |
| # configuration of tabs v. spaces is not supported in the configuration |
| # dialog. IDLE promotes the preferred Python indentation: use spaces! |
| usespaces = idleConf.GetOption('main', 'Indent', |
| 'use-spaces', type='bool') |
| self.usetabs = not usespaces |
| |
| # tabwidth is the display width of a literal tab character. |
| # CAUTION: telling Tk to use anything other than its default |
| # tab setting causes it to use an entirely different tabbing algorithm, |
| # treating tab stops as fixed distances from the left margin. |
| # Nobody expects this, so for now tabwidth should never be changed. |
| self.tabwidth = 8 # must remain 8 until Tk is fixed. |
| |
| # indentwidth is the number of screen characters per indent level. |
| # The recommended Python indentation is four spaces. |
| self.indentwidth = self.tabwidth |
| self.set_notabs_indentwidth() |
| |
| # Store the current value of the insertofftime now so we can restore |
| # it if needed. |
| if not hasattr(idleConf, 'blink_off_time'): |
| idleConf.blink_off_time = self.text['insertofftime'] |
| self.update_cursor_blink() |
| |
| # When searching backwards for a reliable place to begin parsing, |
| # first start num_context_lines[0] lines back, then |
| # num_context_lines[1] lines back if that didn't work, and so on. |
| # The last value should be huge (larger than the # of lines in a |
| # conceivable file). |
| # Making the initial values larger slows things down more often. |
| self.num_context_lines = 50, 500, 5000000 |
| self.per = per = self.Percolator(text) |
| self.undo = undo = self.UndoDelegator() |
| per.insertfilter(undo) |
| text.undo_block_start = undo.undo_block_start |
| text.undo_block_stop = undo.undo_block_stop |
| undo.set_saved_change_hook(self.saved_change_hook) |
| # IOBinding implements file I/O and printing functionality |
| self.io = io = self.IOBinding(self) |
| io.set_filename_change_hook(self.filename_change_hook) |
| self.good_load = False |
| self.set_indentation_params(False) |
| self.color = None # initialized below in self.ResetColorizer |
| self.code_context = None # optionally initialized later below |
| self.line_numbers = None # optionally initialized later below |
| if filename: |
| if os.path.exists(filename) and not os.path.isdir(filename): |
| if io.loadfile(filename): |
| self.good_load = True |
| is_py_src = self.ispythonsource(filename) |
| self.set_indentation_params(is_py_src) |
| else: |
| io.set_filename(filename) |
| self.good_load = True |
| |
| self.ResetColorizer() |
| self.saved_change_hook() |
| self.update_recent_files_list() |
| self.load_extensions() |
| menu = self.menudict.get('window') |
| if menu: |
| end = menu.index("end") |
| if end is None: |
| end = -1 |
| if end >= 0: |
| menu.add_separator() |
| end = end + 1 |
| self.wmenu_end = end |
| window.register_callback(self.postwindowsmenu) |
| |
| # Some abstractions so IDLE extensions are cross-IDE |
| self.askyesno = tkMessageBox.askyesno |
| self.askinteger = tkSimpleDialog.askinteger |
| self.showerror = tkMessageBox.showerror |
| |
| # Add pseudoevents for former extension fixed keys. |
| # (This probably needs to be done once in the process.) |
| text.event_add('<<autocomplete>>', '<Key-Tab>') |
| text.event_add('<<try-open-completions>>', '<KeyRelease-period>', |
| '<KeyRelease-slash>', '<KeyRelease-backslash>') |
| text.event_add('<<try-open-calltip>>', '<KeyRelease-parenleft>') |
| text.event_add('<<refresh-calltip>>', '<KeyRelease-parenright>') |
| text.event_add('<<paren-closed>>', '<KeyRelease-parenright>', |
| '<KeyRelease-bracketright>', '<KeyRelease-braceright>') |
| |
| # Former extension bindings depends on frame.text being packed |
| # (called from self.ResetColorizer()). |
| autocomplete = self.AutoComplete(self) |
| text.bind("<<autocomplete>>", autocomplete.autocomplete_event) |
| text.bind("<<try-open-completions>>", |
| autocomplete.try_open_completions_event) |
| text.bind("<<force-open-completions>>", |
| autocomplete.force_open_completions_event) |
| text.bind("<<expand-word>>", self.AutoExpand(self).expand_word_event) |
| text.bind("<<format-paragraph>>", |
| self.FormatParagraph(self).format_paragraph_event) |
| parenmatch = self.ParenMatch(self) |
| text.bind("<<flash-paren>>", parenmatch.flash_paren_event) |
| text.bind("<<paren-closed>>", parenmatch.paren_closed_event) |
| scriptbinding = ScriptBinding(self) |
| text.bind("<<check-module>>", scriptbinding.check_module_event) |
| text.bind("<<run-module>>", scriptbinding.run_module_event) |
| text.bind("<<run-custom>>", scriptbinding.run_custom_event) |
| text.bind("<<do-rstrip>>", self.Rstrip(self).do_rstrip) |
| self.ctip = ctip = self.Calltip(self) |
| text.bind("<<try-open-calltip>>", ctip.try_open_calltip_event) |
| #refresh-calltip must come after paren-closed to work right |
| text.bind("<<refresh-calltip>>", ctip.refresh_calltip_event) |
| text.bind("<<force-open-calltip>>", ctip.force_open_calltip_event) |
| text.bind("<<zoom-height>>", self.ZoomHeight(self).zoom_height_event) |
| if self.allow_code_context: |
| self.code_context = self.CodeContext(self) |
| text.bind("<<toggle-code-context>>", |
| self.code_context.toggle_code_context_event) |
| else: |
| self.update_menu_state('options', '*Code Context', 'disabled') |
| if self.allow_line_numbers: |
| self.line_numbers = self.LineNumbers(self) |
| if idleConf.GetOption('main', 'EditorWindow', |
| 'line-numbers-default', type='bool'): |
| self.toggle_line_numbers_event() |
| text.bind("<<toggle-line-numbers>>", self.toggle_line_numbers_event) |
| else: |
| self.update_menu_state('options', '*Line Numbers', 'disabled') |
| |
| def handle_winconfig(self, event=None): |
| self.set_width() |
| |
| def set_width(self): |
| text = self.text |
| inner_padding = sum(map(text.tk.getint, [text.cget('border'), |
| text.cget('padx')])) |
| pixel_width = text.winfo_width() - 2 * inner_padding |
| |
| # Divide the width of the Text widget by the font width, |
| # which is taken to be the width of '0' (zero). |
| # http://www.tcl.tk/man/tcl8.6/TkCmd/text.htm#M21 |
| zero_char_width = \ |
| Font(text, font=text.cget('font')).measure('0') |
| self.width = pixel_width // zero_char_width |
| |
| def new_callback(self, event): |
| dirname, basename = self.io.defaultfilename() |
| self.flist.new(dirname) |
| return "break" |
| |
| def home_callback(self, event): |
| if (event.state & 4) != 0 and event.keysym == "Home": |
| # state&4==Control. If <Control-Home>, use the Tk binding. |
| return None |
| if self.text.index("iomark") and \ |
| self.text.compare("iomark", "<=", "insert lineend") and \ |
| self.text.compare("insert linestart", "<=", "iomark"): |
| # In Shell on input line, go to just after prompt |
| insertpt = int(self.text.index("iomark").split(".")[1]) |
| else: |
| line = self.text.get("insert linestart", "insert lineend") |
| for insertpt in range(len(line)): |
| if line[insertpt] not in (' ','\t'): |
| break |
| else: |
| insertpt=len(line) |
| lineat = int(self.text.index("insert").split('.')[1]) |
| if insertpt == lineat: |
| insertpt = 0 |
| dest = "insert linestart+"+str(insertpt)+"c" |
| if (event.state&1) == 0: |
| # shift was not pressed |
| self.text.tag_remove("sel", "1.0", "end") |
| else: |
| if not self.text.index("sel.first"): |
| # there was no previous selection |
| self.text.mark_set("my_anchor", "insert") |
| else: |
| if self.text.compare(self.text.index("sel.first"), "<", |
| self.text.index("insert")): |
| self.text.mark_set("my_anchor", "sel.first") # extend back |
| else: |
| self.text.mark_set("my_anchor", "sel.last") # extend forward |
| first = self.text.index(dest) |
| last = self.text.index("my_anchor") |
| if self.text.compare(first,">",last): |
| first,last = last,first |
| self.text.tag_remove("sel", "1.0", "end") |
| self.text.tag_add("sel", first, last) |
| self.text.mark_set("insert", dest) |
| self.text.see("insert") |
| return "break" |
| |
| def set_status_bar(self): |
| self.status_bar = self.MultiStatusBar(self.top) |
| sep = Frame(self.top, height=1, borderwidth=1, background='grey75') |
| if sys.platform == "darwin": |
| # Insert some padding to avoid obscuring some of the statusbar |
| # by the resize widget. |
| self.status_bar.set_label('_padding1', ' ', side=RIGHT) |
| self.status_bar.set_label('column', 'Col: ?', side=RIGHT) |
| self.status_bar.set_label('line', 'Ln: ?', side=RIGHT) |
| self.status_bar.pack(side=BOTTOM, fill=X) |
| sep.pack(side=BOTTOM, fill=X) |
| self.text.bind("<<set-line-and-column>>", self.set_line_and_column) |
| self.text.event_add("<<set-line-and-column>>", |
| "<KeyRelease>", "<ButtonRelease>") |
| self.text.after_idle(self.set_line_and_column) |
| |
| def set_line_and_column(self, event=None): |
| line, column = self.text.index(INSERT).split('.') |
| self.status_bar.set_label('column', 'Col: %s' % column) |
| self.status_bar.set_label('line', 'Ln: %s' % line) |
| |
| menu_specs = [ |
| ("file", "_File"), |
| ("edit", "_Edit"), |
| ("format", "F_ormat"), |
| ("run", "_Run"), |
| ("options", "_Options"), |
| ("window", "_Window"), |
| ("help", "_Help"), |
| ] |
| |
| |
| def createmenubar(self): |
| mbar = self.menubar |
| self.menudict = menudict = {} |
| for name, label in self.menu_specs: |
| underline, label = prepstr(label) |
| menudict[name] = menu = Menu(mbar, name=name, tearoff=0) |
| mbar.add_cascade(label=label, menu=menu, underline=underline) |
| if macosx.isCarbonTk(): |
| # Insert the application menu |
| menudict['application'] = menu = Menu(mbar, name='apple', |
| tearoff=0) |
| mbar.add_cascade(label='IDLE', menu=menu) |
| self.fill_menus() |
| self.recent_files_menu = Menu(self.menubar, tearoff=0) |
| self.menudict['file'].insert_cascade(3, label='Recent Files', |
| underline=0, |
| menu=self.recent_files_menu) |
| self.base_helpmenu_length = self.menudict['help'].index(END) |
| self.reset_help_menu_entries() |
| |
| def postwindowsmenu(self): |
| # Only called when Window menu exists |
| menu = self.menudict['window'] |
| end = menu.index("end") |
| if end is None: |
| end = -1 |
| if end > self.wmenu_end: |
| menu.delete(self.wmenu_end+1, end) |
| window.add_windows_to_menu(menu) |
| |
| def update_menu_label(self, menu, index, label): |
| "Update label for menu item at index." |
| menuitem = self.menudict[menu] |
| menuitem.entryconfig(index, label=label) |
| |
| def update_menu_state(self, menu, index, state): |
| "Update state for menu item at index." |
| menuitem = self.menudict[menu] |
| menuitem.entryconfig(index, state=state) |
| |
| def handle_yview(self, event, *args): |
| "Handle scrollbar." |
| if event == 'moveto': |
| fraction = float(args[0]) |
| lines = (round(self.getlineno('end') * fraction) - |
| self.getlineno('@0,0')) |
| event = 'scroll' |
| args = (lines, 'units') |
| self.text.yview(event, *args) |
| return 'break' |
| |
| rmenu = None |
| |
| def right_menu_event(self, event): |
| self.text.mark_set("insert", "@%d,%d" % (event.x, event.y)) |
| if not self.rmenu: |
| self.make_rmenu() |
| rmenu = self.rmenu |
| self.event = event |
| iswin = sys.platform[:3] == 'win' |
| if iswin: |
| self.text.config(cursor="arrow") |
| |
| for item in self.rmenu_specs: |
| try: |
| label, eventname, verify_state = item |
| except ValueError: # see issue1207589 |
| continue |
| |
| if verify_state is None: |
| continue |
| state = getattr(self, verify_state)() |
| rmenu.entryconfigure(label, state=state) |
| |
| |
| rmenu.tk_popup(event.x_root, event.y_root) |
| if iswin: |
| self.text.config(cursor="ibeam") |
| return "break" |
| |
| rmenu_specs = [ |
| # ("Label", "<<virtual-event>>", "statefuncname"), ... |
| ("Close", "<<close-window>>", None), # Example |
| ] |
| |
| def make_rmenu(self): |
| rmenu = Menu(self.text, tearoff=0) |
| for item in self.rmenu_specs: |
| label, eventname = item[0], item[1] |
| if label is not None: |
| def command(text=self.text, eventname=eventname): |
| text.event_generate(eventname) |
| rmenu.add_command(label=label, command=command) |
| else: |
| rmenu.add_separator() |
| self.rmenu = rmenu |
| |
| def rmenu_check_cut(self): |
| return self.rmenu_check_copy() |
| |
| def rmenu_check_copy(self): |
| try: |
| indx = self.text.index('sel.first') |
| except TclError: |
| return 'disabled' |
| else: |
| return 'normal' if indx else 'disabled' |
| |
| def rmenu_check_paste(self): |
| try: |
| self.text.tk.call('tk::GetSelection', self.text, 'CLIPBOARD') |
| except TclError: |
| return 'disabled' |
| else: |
| return 'normal' |
| |
| def about_dialog(self, event=None): |
| "Handle Help 'About IDLE' event." |
| # Synchronize with macosx.overrideRootMenu.about_dialog. |
| help_about.AboutDialog(self.top) |
| return "break" |
| |
| def config_dialog(self, event=None): |
| "Handle Options 'Configure IDLE' event." |
| # Synchronize with macosx.overrideRootMenu.config_dialog. |
| configdialog.ConfigDialog(self.top,'Settings') |
| return "break" |
| |
| def help_dialog(self, event=None): |
| "Handle Help 'IDLE Help' event." |
| # Synchronize with macosx.overrideRootMenu.help_dialog. |
| if self.root: |
| parent = self.root |
| else: |
| parent = self.top |
| help.show_idlehelp(parent) |
| return "break" |
| |
| def python_docs(self, event=None): |
| if sys.platform[:3] == 'win': |
| try: |
| os.startfile(self.help_url) |
| except OSError as why: |
| tkMessageBox.showerror(title='Document Start Failure', |
| message=str(why), parent=self.text) |
| else: |
| webbrowser.open(self.help_url) |
| return "break" |
| |
| def cut(self,event): |
| self.text.event_generate("<<Cut>>") |
| return "break" |
| |
| def copy(self,event): |
| if not self.text.tag_ranges("sel"): |
| # There is no selection, so do nothing and maybe interrupt. |
| return None |
| self.text.event_generate("<<Copy>>") |
| return "break" |
| |
| def paste(self,event): |
| self.text.event_generate("<<Paste>>") |
| self.text.see("insert") |
| return "break" |
| |
| def select_all(self, event=None): |
| self.text.tag_add("sel", "1.0", "end-1c") |
| self.text.mark_set("insert", "1.0") |
| self.text.see("insert") |
| return "break" |
| |
| def remove_selection(self, event=None): |
| self.text.tag_remove("sel", "1.0", "end") |
| self.text.see("insert") |
| return "break" |
| |
| def move_at_edge_if_selection(self, edge_index): |
| """Cursor move begins at start or end of selection |
| |
| When a left/right cursor key is pressed create and return to Tkinter a |
| function which causes a cursor move from the associated edge of the |
| selection. |
| |
| """ |
| self_text_index = self.text.index |
| self_text_mark_set = self.text.mark_set |
| edges_table = ("sel.first+1c", "sel.last-1c") |
| def move_at_edge(event): |
| if (event.state & 5) == 0: # no shift(==1) or control(==4) pressed |
| try: |
| self_text_index("sel.first") |
| self_text_mark_set("insert", edges_table[edge_index]) |
| except TclError: |
| pass |
| return move_at_edge |
| |
| def del_word_left(self, event): |
| self.text.event_generate('<Meta-Delete>') |
| return "break" |
| |
| def del_word_right(self, event): |
| self.text.event_generate('<Meta-d>') |
| return "break" |
| |
| def find_event(self, event): |
| search.find(self.text) |
| return "break" |
| |
| def find_again_event(self, event): |
| search.find_again(self.text) |
| return "break" |
| |
| def find_selection_event(self, event): |
| search.find_selection(self.text) |
| return "break" |
| |
| def find_in_files_event(self, event): |
| grep.grep(self.text, self.io, self.flist) |
| return "break" |
| |
| def replace_event(self, event): |
| replace.replace(self.text) |
| return "break" |
| |
| def goto_line_event(self, event): |
| text = self.text |
| lineno = tkSimpleDialog.askinteger("Goto", |
| "Go to line number:",parent=text) |
| if lineno is None: |
| return "break" |
| if lineno <= 0: |
| text.bell() |
| return "break" |
| text.mark_set("insert", "%d.0" % lineno) |
| text.see("insert") |
| return "break" |
| |
| def open_module(self): |
| """Get module name from user and open it. |
| |
| Return module path or None for calls by open_module_browser |
| when latter is not invoked in named editor window. |
| """ |
| # XXX This, open_module_browser, and open_path_browser |
| # would fit better in iomenu.IOBinding. |
| try: |
| name = self.text.get("sel.first", "sel.last").strip() |
| except TclError: |
| name = '' |
| file_path = query.ModuleName( |
| self.text, "Open Module", |
| "Enter the name of a Python module\n" |
| "to search on sys.path and open:", |
| name).result |
| if file_path is not None: |
| if self.flist: |
| self.flist.open(file_path) |
| else: |
| self.io.loadfile(file_path) |
| return file_path |
| |
| def open_module_event(self, event): |
| self.open_module() |
| return "break" |
| |
| def open_module_browser(self, event=None): |
| filename = self.io.filename |
| if not (self.__class__.__name__ == 'PyShellEditorWindow' |
| and filename): |
| filename = self.open_module() |
| if filename is None: |
| return "break" |
| from idlelib import browser |
| browser.ModuleBrowser(self.root, filename) |
| return "break" |
| |
| def open_path_browser(self, event=None): |
| from idlelib import pathbrowser |
| pathbrowser.PathBrowser(self.root) |
| return "break" |
| |
| def open_turtle_demo(self, event = None): |
| import subprocess |
| |
| cmd = [sys.executable, |
| '-c', |
| 'from turtledemo.__main__ import main; main()'] |
| subprocess.Popen(cmd, shell=False) |
| return "break" |
| |
| def gotoline(self, lineno): |
| if lineno is not None and lineno > 0: |
| self.text.mark_set("insert", "%d.0" % lineno) |
| self.text.tag_remove("sel", "1.0", "end") |
| self.text.tag_add("sel", "insert", "insert +1l") |
| self.center() |
| |
| def ispythonsource(self, filename): |
| if not filename or os.path.isdir(filename): |
| return True |
| base, ext = os.path.splitext(os.path.basename(filename)) |
| if os.path.normcase(ext) in (".py", ".pyw"): |
| return True |
| line = self.text.get('1.0', '1.0 lineend') |
| return line.startswith('#!') and 'python' in line |
| |
| def close_hook(self): |
| if self.flist: |
| self.flist.unregister_maybe_terminate(self) |
| self.flist = None |
| |
| def set_close_hook(self, close_hook): |
| self.close_hook = close_hook |
| |
| def filename_change_hook(self): |
| if self.flist: |
| self.flist.filename_changed_edit(self) |
| self.saved_change_hook() |
| self.top.update_windowlist_registry(self) |
| self.ResetColorizer() |
| |
| def _addcolorizer(self): |
| if self.color: |
| return |
| if self.ispythonsource(self.io.filename): |
| self.color = self.ColorDelegator() |
| # can add more colorizers here... |
| if self.color: |
| self.per.removefilter(self.undo) |
| self.per.insertfilter(self.color) |
| self.per.insertfilter(self.undo) |
| |
| def _rmcolorizer(self): |
| if not self.color: |
| return |
| self.color.removecolors() |
| self.per.removefilter(self.color) |
| self.color = None |
| |
| def ResetColorizer(self): |
| "Update the color theme" |
| # Called from self.filename_change_hook and from configdialog.py |
| self._rmcolorizer() |
| self._addcolorizer() |
| EditorWindow.color_config(self.text) |
| |
| if self.code_context is not None: |
| self.code_context.update_highlight_colors() |
| |
| if self.line_numbers is not None: |
| self.line_numbers.update_colors() |
| |
| IDENTCHARS = string.ascii_letters + string.digits + "_" |
| |
| def colorize_syntax_error(self, text, pos): |
| text.tag_add("ERROR", pos) |
| char = text.get(pos) |
| if char and char in self.IDENTCHARS: |
| text.tag_add("ERROR", pos + " wordstart", pos) |
| if '\n' == text.get(pos): # error at line end |
| text.mark_set("insert", pos) |
| else: |
| text.mark_set("insert", pos + "+1c") |
| text.see(pos) |
| |
| def update_cursor_blink(self): |
| "Update the cursor blink configuration." |
| cursorblink = idleConf.GetOption( |
| 'main', 'EditorWindow', 'cursor-blink', type='bool') |
| if not cursorblink: |
| self.text['insertofftime'] = 0 |
| else: |
| # Restore the original value |
| self.text['insertofftime'] = idleConf.blink_off_time |
| |
| def ResetFont(self): |
| "Update the text widgets' font if it is changed" |
| # Called from configdialog.py |
| |
| # Update the code context widget first, since its height affects |
| # the height of the text widget. This avoids double re-rendering. |
| if self.code_context is not None: |
| self.code_context.update_font() |
| # Next, update the line numbers widget, since its width affects |
| # the width of the text widget. |
| if self.line_numbers is not None: |
| self.line_numbers.update_font() |
| # Finally, update the main text widget. |
| new_font = idleConf.GetFont(self.root, 'main', 'EditorWindow') |
| self.text['font'] = new_font |
| self.set_width() |
| |
| def RemoveKeybindings(self): |
| "Remove the keybindings before they are changed." |
| # Called from configdialog.py |
| self.mainmenu.default_keydefs = keydefs = idleConf.GetCurrentKeySet() |
| for event, keylist in keydefs.items(): |
| self.text.event_delete(event, *keylist) |
| for extensionName in self.get_standard_extension_names(): |
| xkeydefs = idleConf.GetExtensionBindings(extensionName) |
| if xkeydefs: |
| for event, keylist in xkeydefs.items(): |
| self.text.event_delete(event, *keylist) |
| |
| def ApplyKeybindings(self): |
| "Update the keybindings after they are changed" |
| # Called from configdialog.py |
| self.mainmenu.default_keydefs = keydefs = idleConf.GetCurrentKeySet() |
| self.apply_bindings() |
| for extensionName in self.get_standard_extension_names(): |
| xkeydefs = idleConf.GetExtensionBindings(extensionName) |
| if xkeydefs: |
| self.apply_bindings(xkeydefs) |
| #update menu accelerators |
| menuEventDict = {} |
| for menu in self.mainmenu.menudefs: |
| menuEventDict[menu[0]] = {} |
| for item in menu[1]: |
| if item: |
| menuEventDict[menu[0]][prepstr(item[0])[1]] = item[1] |
| for menubarItem in self.menudict: |
| menu = self.menudict[menubarItem] |
| end = menu.index(END) |
| if end is None: |
| # Skip empty menus |
| continue |
| end += 1 |
| for index in range(0, end): |
| if menu.type(index) == 'command': |
| accel = menu.entrycget(index, 'accelerator') |
| if accel: |
| itemName = menu.entrycget(index, 'label') |
| event = '' |
| if menubarItem in menuEventDict: |
| if itemName in menuEventDict[menubarItem]: |
| event = menuEventDict[menubarItem][itemName] |
| if event: |
| accel = get_accelerator(keydefs, event) |
| menu.entryconfig(index, accelerator=accel) |
| |
| def set_notabs_indentwidth(self): |
| "Update the indentwidth if changed and not using tabs in this window" |
| # Called from configdialog.py |
| if not self.usetabs: |
| self.indentwidth = idleConf.GetOption('main', 'Indent','num-spaces', |
| type='int') |
| |
| def reset_help_menu_entries(self): |
| "Update the additional help entries on the Help menu" |
| help_list = idleConf.GetAllExtraHelpSourcesList() |
| helpmenu = self.menudict['help'] |
| # first delete the extra help entries, if any |
| helpmenu_length = helpmenu.index(END) |
| if helpmenu_length > self.base_helpmenu_length: |
| helpmenu.delete((self.base_helpmenu_length + 1), helpmenu_length) |
| # then rebuild them |
| if help_list: |
| helpmenu.add_separator() |
| for entry in help_list: |
| cmd = self.__extra_help_callback(entry[1]) |
| helpmenu.add_command(label=entry[0], command=cmd) |
| # and update the menu dictionary |
| self.menudict['help'] = helpmenu |
| |
| def __extra_help_callback(self, helpfile): |
| "Create a callback with the helpfile value frozen at definition time" |
| def display_extra_help(helpfile=helpfile): |
| if not helpfile.startswith(('www', 'http')): |
| helpfile = os.path.normpath(helpfile) |
| if sys.platform[:3] == 'win': |
| try: |
| os.startfile(helpfile) |
| except OSError as why: |
| tkMessageBox.showerror(title='Document Start Failure', |
| message=str(why), parent=self.text) |
| else: |
| webbrowser.open(helpfile) |
| return display_extra_help |
| |
| def update_recent_files_list(self, new_file=None): |
| "Load and update the recent files list and menus" |
| # TODO: move to iomenu. |
| rf_list = [] |
| file_path = self.recent_files_path |
| if file_path and os.path.exists(file_path): |
| with open(file_path, 'r', |
| encoding='utf_8', errors='replace') as rf_list_file: |
| rf_list = rf_list_file.readlines() |
| if new_file: |
| new_file = os.path.abspath(new_file) + '\n' |
| if new_file in rf_list: |
| rf_list.remove(new_file) # move to top |
| rf_list.insert(0, new_file) |
| # clean and save the recent files list |
| bad_paths = [] |
| for path in rf_list: |
| if '\0' in path or not os.path.exists(path[0:-1]): |
| bad_paths.append(path) |
| rf_list = [path for path in rf_list if path not in bad_paths] |
| ulchars = "1234567890ABCDEFGHIJK" |
| rf_list = rf_list[0:len(ulchars)] |
| if file_path: |
| try: |
| with open(file_path, 'w', |
| encoding='utf_8', errors='replace') as rf_file: |
| rf_file.writelines(rf_list) |
| except OSError as err: |
| if not getattr(self.root, "recentfiles_message", False): |
| self.root.recentfiles_message = True |
| tkMessageBox.showwarning(title='IDLE Warning', |
| message="Cannot save Recent Files list to disk.\n" |
| f" {err}\n" |
| "Select OK to continue.", |
| parent=self.text) |
| # for each edit window instance, construct the recent files menu |
| for instance in self.top.instance_dict: |
| menu = instance.recent_files_menu |
| menu.delete(0, END) # clear, and rebuild: |
| for i, file_name in enumerate(rf_list): |
| file_name = file_name.rstrip() # zap \n |
| callback = instance.__recent_file_callback(file_name) |
| menu.add_command(label=ulchars[i] + " " + file_name, |
| command=callback, |
| underline=0) |
| |
| def __recent_file_callback(self, file_name): |
| def open_recent_file(fn_closure=file_name): |
| self.io.open(editFile=fn_closure) |
| return open_recent_file |
| |
| def saved_change_hook(self): |
| short = self.short_title() |
| long = self.long_title() |
| if short and long: |
| title = short + " - " + long + _py_version |
| elif short: |
| title = short |
| elif long: |
| title = long |
| else: |
| title = "untitled" |
| icon = short or long or title |
| if not self.get_saved(): |
| title = "*%s*" % title |
| icon = "*%s" % icon |
| self.top.wm_title(title) |
| self.top.wm_iconname(icon) |
| |
| def get_saved(self): |
| return self.undo.get_saved() |
| |
| def set_saved(self, flag): |
| self.undo.set_saved(flag) |
| |
| def reset_undo(self): |
| self.undo.reset_undo() |
| |
| def short_title(self): |
| filename = self.io.filename |
| return os.path.basename(filename) if filename else "untitled" |
| |
| def long_title(self): |
| return self.io.filename or "" |
| |
| def center_insert_event(self, event): |
| self.center() |
| return "break" |
| |
| def center(self, mark="insert"): |
| text = self.text |
| top, bot = self.getwindowlines() |
| lineno = self.getlineno(mark) |
| height = bot - top |
| newtop = max(1, lineno - height//2) |
| text.yview(float(newtop)) |
| |
| def getwindowlines(self): |
| text = self.text |
| top = self.getlineno("@0,0") |
| bot = self.getlineno("@0,65535") |
| if top == bot and text.winfo_height() == 1: |
| # Geometry manager hasn't run yet |
| height = int(text['height']) |
| bot = top + height - 1 |
| return top, bot |
| |
| def getlineno(self, mark="insert"): |
| text = self.text |
| return int(float(text.index(mark))) |
| |
| def get_geometry(self): |
| "Return (width, height, x, y)" |
| geom = self.top.wm_geometry() |
| m = re.match(r"(\d+)x(\d+)\+(-?\d+)\+(-?\d+)", geom) |
| return list(map(int, m.groups())) |
| |
| def close_event(self, event): |
| self.close() |
| return "break" |
| |
| def maybesave(self): |
| if self.io: |
| if not self.get_saved(): |
| if self.top.state()!='normal': |
| self.top.deiconify() |
| self.top.lower() |
| self.top.lift() |
| return self.io.maybesave() |
| |
| def close(self): |
| try: |
| reply = self.maybesave() |
| if str(reply) != "cancel": |
| self._close() |
| return reply |
| except AttributeError: # bpo-35379: close called twice |
| pass |
| |
| def _close(self): |
| if self.io.filename: |
| self.update_recent_files_list(new_file=self.io.filename) |
| window.unregister_callback(self.postwindowsmenu) |
| self.unload_extensions() |
| self.io.close() |
| self.io = None |
| self.undo = None |
| if self.color: |
| self.color.close() |
| self.color = None |
| self.text = None |
| self.tkinter_vars = None |
| self.per.close() |
| self.per = None |
| self.top.destroy() |
| if self.close_hook: |
| # unless override: unregister from flist, terminate if last window |
| self.close_hook() |
| |
| def load_extensions(self): |
| self.extensions = {} |
| self.load_standard_extensions() |
| |
| def unload_extensions(self): |
| for ins in list(self.extensions.values()): |
| if hasattr(ins, "close"): |
| ins.close() |
| self.extensions = {} |
| |
| def load_standard_extensions(self): |
| for name in self.get_standard_extension_names(): |
| try: |
| self.load_extension(name) |
| except: |
| print("Failed to load extension", repr(name)) |
| traceback.print_exc() |
| |
| def get_standard_extension_names(self): |
| return idleConf.GetExtensions(editor_only=True) |
| |
| extfiles = { # Map built-in config-extension section names to file names. |
| 'ZzDummy': 'zzdummy', |
| } |
| |
| def load_extension(self, name): |
| fname = self.extfiles.get(name, name) |
| try: |
| try: |
| mod = importlib.import_module('.' + fname, package=__package__) |
| except (ImportError, TypeError): |
| mod = importlib.import_module(fname) |
| except ImportError: |
| print("\nFailed to import extension: ", name) |
| raise |
| cls = getattr(mod, name) |
| keydefs = idleConf.GetExtensionBindings(name) |
| if hasattr(cls, "menudefs"): |
| self.fill_menus(cls.menudefs, keydefs) |
| ins = cls(self) |
| self.extensions[name] = ins |
| if keydefs: |
| self.apply_bindings(keydefs) |
| for vevent in keydefs: |
| methodname = vevent.replace("-", "_") |
| while methodname[:1] == '<': |
| methodname = methodname[1:] |
| while methodname[-1:] == '>': |
| methodname = methodname[:-1] |
| methodname = methodname + "_event" |
| if hasattr(ins, methodname): |
| self.text.bind(vevent, getattr(ins, methodname)) |
| |
| def apply_bindings(self, keydefs=None): |
| if keydefs is None: |
| keydefs = self.mainmenu.default_keydefs |
| text = self.text |
| text.keydefs = keydefs |
| for event, keylist in keydefs.items(): |
| if keylist: |
| text.event_add(event, *keylist) |
| |
| def fill_menus(self, menudefs=None, keydefs=None): |
| """Add appropriate entries to the menus and submenus |
| |
| Menus that are absent or None in self.menudict are ignored. |
| """ |
| if menudefs is None: |
| menudefs = self.mainmenu.menudefs |
| if keydefs is None: |
| keydefs = self.mainmenu.default_keydefs |
| menudict = self.menudict |
| text = self.text |
| for mname, entrylist in menudefs: |
| menu = menudict.get(mname) |
| if not menu: |
| continue |
| for entry in entrylist: |
| if not entry: |
| menu.add_separator() |
| else: |
| label, eventname = entry |
| checkbutton = (label[:1] == '!') |
| if checkbutton: |
| label = label[1:] |
| underline, label = prepstr(label) |
| accelerator = get_accelerator(keydefs, eventname) |
| def command(text=text, eventname=eventname): |
| text.event_generate(eventname) |
| if checkbutton: |
| var = self.get_var_obj(eventname, BooleanVar) |
| menu.add_checkbutton(label=label, underline=underline, |
| command=command, accelerator=accelerator, |
| variable=var) |
| else: |
| menu.add_command(label=label, underline=underline, |
| command=command, |
| accelerator=accelerator) |
| |
| def getvar(self, name): |
| var = self.get_var_obj(name) |
| if var: |
| value = var.get() |
| return value |
| else: |
| raise NameError(name) |
| |
| def setvar(self, name, value, vartype=None): |
| var = self.get_var_obj(name, vartype) |
| if var: |
| var.set(value) |
| else: |
| raise NameError(name) |
| |
| def get_var_obj(self, name, vartype=None): |
| var = self.tkinter_vars.get(name) |
| if not var and vartype: |
| # create a Tkinter variable object with self.text as master: |
| self.tkinter_vars[name] = var = vartype(self.text) |
| return var |
| |
| # Tk implementations of "virtual text methods" -- each platform |
| # reusing IDLE's support code needs to define these for its GUI's |
| # flavor of widget. |
| |
| # Is character at text_index in a Python string? Return 0 for |
| # "guaranteed no", true for anything else. This info is expensive |
| # to compute ab initio, but is probably already known by the |
| # platform's colorizer. |
| |
| def is_char_in_string(self, text_index): |
| if self.color: |
| # Return true iff colorizer hasn't (re)gotten this far |
| # yet, or the character is tagged as being in a string |
| return self.text.tag_prevrange("TODO", text_index) or \ |
| "STRING" in self.text.tag_names(text_index) |
| else: |
| # The colorizer is missing: assume the worst |
| return 1 |
| |
| # If a selection is defined in the text widget, return (start, |
| # end) as Tkinter text indices, otherwise return (None, None) |
| def get_selection_indices(self): |
| try: |
| first = self.text.index("sel.first") |
| last = self.text.index("sel.last") |
| return first, last |
| except TclError: |
| return None, None |
| |
| # Return the text widget's current view of what a tab stop means |
| # (equivalent width in spaces). |
| |
| def get_tk_tabwidth(self): |
| current = self.text['tabs'] or TK_TABWIDTH_DEFAULT |
| return int(current) |
| |
| # Set the text widget's current view of what a tab stop means. |
| |
| def set_tk_tabwidth(self, newtabwidth): |
| text = self.text |
| if self.get_tk_tabwidth() != newtabwidth: |
| # Set text widget tab width |
| pixels = text.tk.call("font", "measure", text["font"], |
| "-displayof", text.master, |
| "n" * newtabwidth) |
| text.configure(tabs=pixels) |
| |
| ### begin autoindent code ### (configuration was moved to beginning of class) |
| |
| def set_indentation_params(self, is_py_src, guess=True): |
| if is_py_src and guess: |
| i = self.guess_indent() |
| if 2 <= i <= 8: |
| self.indentwidth = i |
| if self.indentwidth != self.tabwidth: |
| self.usetabs = False |
| self.set_tk_tabwidth(self.tabwidth) |
| |
| def smart_backspace_event(self, event): |
| text = self.text |
| first, last = self.get_selection_indices() |
| if first and last: |
| text.delete(first, last) |
| text.mark_set("insert", first) |
| return "break" |
| # Delete whitespace left, until hitting a real char or closest |
| # preceding virtual tab stop. |
| chars = text.get("insert linestart", "insert") |
| if chars == '': |
| if text.compare("insert", ">", "1.0"): |
| # easy: delete preceding newline |
| text.delete("insert-1c") |
| else: |
| text.bell() # at start of buffer |
| return "break" |
| if chars[-1] not in " \t": |
| # easy: delete preceding real char |
| text.delete("insert-1c") |
| return "break" |
| # Ick. It may require *inserting* spaces if we back up over a |
| # tab character! This is written to be clear, not fast. |
| tabwidth = self.tabwidth |
| have = len(chars.expandtabs(tabwidth)) |
| assert have > 0 |
| want = ((have - 1) // self.indentwidth) * self.indentwidth |
| # Debug prompt is multilined.... |
| ncharsdeleted = 0 |
| while 1: |
| if chars == self.prompt_last_line: # '' unless PyShell |
| break |
| chars = chars[:-1] |
| ncharsdeleted = ncharsdeleted + 1 |
| have = len(chars.expandtabs(tabwidth)) |
| if have <= want or chars[-1] not in " \t": |
| break |
| text.undo_block_start() |
| text.delete("insert-%dc" % ncharsdeleted, "insert") |
| if have < want: |
| text.insert("insert", ' ' * (want - have)) |
| text.undo_block_stop() |
| return "break" |
| |
| def smart_indent_event(self, event): |
| # if intraline selection: |
| # delete it |
| # elif multiline selection: |
| # do indent-region |
| # else: |
| # indent one level |
| text = self.text |
| first, last = self.get_selection_indices() |
| text.undo_block_start() |
| try: |
| if first and last: |
| if index2line(first) != index2line(last): |
| return self.fregion.indent_region_event(event) |
| text.delete(first, last) |
| text.mark_set("insert", first) |
| prefix = text.get("insert linestart", "insert") |
| raw, effective = get_line_indent(prefix, self.tabwidth) |
| if raw == len(prefix): |
| # only whitespace to the left |
| self.reindent_to(effective + self.indentwidth) |
| else: |
| # tab to the next 'stop' within or to right of line's text: |
| if self.usetabs: |
| pad = '\t' |
| else: |
| effective = len(prefix.expandtabs(self.tabwidth)) |
| n = self.indentwidth |
| pad = ' ' * (n - effective % n) |
| text.insert("insert", pad) |
| text.see("insert") |
| return "break" |
| finally: |
| text.undo_block_stop() |
| |
| def newline_and_indent_event(self, event): |
| """Insert a newline and indentation after Enter keypress event. |
| |
| Properly position the cursor on the new line based on information |
| from the current line. This takes into account if the current line |
| is a shell prompt, is empty, has selected text, contains a block |
| opener, contains a block closer, is a continuation line, or |
| is inside a string. |
| """ |
| text = self.text |
| first, last = self.get_selection_indices() |
| text.undo_block_start() |
| try: # Close undo block and expose new line in finally clause. |
| if first and last: |
| text.delete(first, last) |
| text.mark_set("insert", first) |
| line = text.get("insert linestart", "insert") |
| |
| # Count leading whitespace for indent size. |
| i, n = 0, len(line) |
| while i < n and line[i] in " \t": |
| i += 1 |
| if i == n: |
| # The cursor is in or at leading indentation in a continuation |
| # line; just inject an empty line at the start. |
| text.insert("insert linestart", '\n') |
| return "break" |
| indent = line[:i] |
| |
| # Strip whitespace before insert point unless it's in the prompt. |
| i = 0 |
| while line and line[-1] in " \t" and line != self.prompt_last_line: |
| line = line[:-1] |
| i += 1 |
| if i: |
| text.delete("insert - %d chars" % i, "insert") |
| |
| # Strip whitespace after insert point. |
| while text.get("insert") in " \t": |
| text.delete("insert") |
| |
| # Insert new line. |
| text.insert("insert", '\n') |
| |
| # Adjust indentation for continuations and block open/close. |
| # First need to find the last statement. |
| lno = index2line(text.index('insert')) |
| y = pyparse.Parser(self.indentwidth, self.tabwidth) |
| if not self.prompt_last_line: |
| for context in self.num_context_lines: |
| startat = max(lno - context, 1) |
| startatindex = repr(startat) + ".0" |
| rawtext = text.get(startatindex, "insert") |
| y.set_code(rawtext) |
| bod = y.find_good_parse_start( |
| self._build_char_in_string_func(startatindex)) |
| if bod is not None or startat == 1: |
| break |
| y.set_lo(bod or 0) |
| else: |
| r = text.tag_prevrange("console", "insert") |
| if r: |
| startatindex = r[1] |
| else: |
| startatindex = "1.0" |
| rawtext = text.get(startatindex, "insert") |
| y.set_code(rawtext) |
| y.set_lo(0) |
| |
| c = y.get_continuation_type() |
| if c != pyparse.C_NONE: |
| # The current statement hasn't ended yet. |
| if c == pyparse.C_STRING_FIRST_LINE: |
| # After the first line of a string do not indent at all. |
| pass |
| elif c == pyparse.C_STRING_NEXT_LINES: |
| # Inside a string which started before this line; |
| # just mimic the current indent. |
| text.insert("insert", indent) |
| elif c == pyparse.C_BRACKET: |
| # Line up with the first (if any) element of the |
| # last open bracket structure; else indent one |
| # level beyond the indent of the line with the |
| # last open bracket. |
| self.reindent_to(y.compute_bracket_indent()) |
| elif c == pyparse.C_BACKSLASH: |
| # If more than one line in this statement already, just |
| # mimic the current indent; else if initial line |
| # has a start on an assignment stmt, indent to |
| # beyond leftmost =; else to beyond first chunk of |
| # non-whitespace on initial line. |
| if y.get_num_lines_in_stmt() > 1: |
| text.insert("insert", indent) |
| else: |
| self.reindent_to(y.compute_backslash_indent()) |
| else: |
| assert 0, "bogus continuation type %r" % (c,) |
| return "break" |
| |
| # This line starts a brand new statement; indent relative to |
| # indentation of initial line of closest preceding |
| # interesting statement. |
| indent = y.get_base_indent_string() |
| text.insert("insert", indent) |
| if y.is_block_opener(): |
| self.smart_indent_event(event) |
| elif indent and y.is_block_closer(): |
| self.smart_backspace_event(event) |
| return "break" |
| finally: |
| text.see("insert") |
| text.undo_block_stop() |
| |
| # Our editwin provides an is_char_in_string function that works |
| # with a Tk text index, but PyParse only knows about offsets into |
| # a string. This builds a function for PyParse that accepts an |
| # offset. |
| |
| def _build_char_in_string_func(self, startindex): |
| def inner(offset, _startindex=startindex, |
| _icis=self.is_char_in_string): |
| return _icis(_startindex + "+%dc" % offset) |
| return inner |
| |
| # XXX this isn't bound to anything -- see tabwidth comments |
| ## def change_tabwidth_event(self, event): |
| ## new = self._asktabwidth() |
| ## if new != self.tabwidth: |
| ## self.tabwidth = new |
| ## self.set_indentation_params(0, guess=0) |
| ## return "break" |
| |
| # Make string that displays as n leading blanks. |
| |
| def _make_blanks(self, n): |
| if self.usetabs: |
| ntabs, nspaces = divmod(n, self.tabwidth) |
| return '\t' * ntabs + ' ' * nspaces |
| else: |
| return ' ' * n |
| |
| # Delete from beginning of line to insert point, then reinsert |
| # column logical (meaning use tabs if appropriate) spaces. |
| |
| def reindent_to(self, column): |
| text = self.text |
| text.undo_block_start() |
| if text.compare("insert linestart", "!=", "insert"): |
| text.delete("insert linestart", "insert") |
| if column: |
| text.insert("insert", self._make_blanks(column)) |
| text.undo_block_stop() |
| |
| # Guess indentwidth from text content. |
| # Return guessed indentwidth. This should not be believed unless |
| # it's in a reasonable range (e.g., it will be 0 if no indented |
| # blocks are found). |
| |
| def guess_indent(self): |
| opener, indented = IndentSearcher(self.text, self.tabwidth).run() |
| if opener and indented: |
| raw, indentsmall = get_line_indent(opener, self.tabwidth) |
| raw, indentlarge = get_line_indent(indented, self.tabwidth) |
| else: |
| indentsmall = indentlarge = 0 |
| return indentlarge - indentsmall |
| |
| def toggle_line_numbers_event(self, event=None): |
| if self.line_numbers is None: |
| return |
| |
| if self.line_numbers.is_shown: |
| self.line_numbers.hide_sidebar() |
| menu_label = "Show" |
| else: |
| self.line_numbers.show_sidebar() |
| menu_label = "Hide" |
| self.update_menu_label(menu='options', index='*Line Numbers', |
| label=f'{menu_label} Line Numbers') |
| |
| # "line.col" -> line, as an int |
| def index2line(index): |
| return int(float(index)) |
| |
| |
| _line_indent_re = re.compile(r'[ \t]*') |
| def get_line_indent(line, tabwidth): |
| """Return a line's indentation as (# chars, effective # of spaces). |
| |
| The effective # of spaces is the length after properly "expanding" |
| the tabs into spaces, as done by str.expandtabs(tabwidth). |
| """ |
| m = _line_indent_re.match(line) |
| return m.end(), len(m.group().expandtabs(tabwidth)) |
| |
| |
| class IndentSearcher(object): |
| |
| # .run() chews over the Text widget, looking for a block opener |
| # and the stmt following it. Returns a pair, |
| # (line containing block opener, line containing stmt) |
| # Either or both may be None. |
| |
| def __init__(self, text, tabwidth): |
| self.text = text |
| self.tabwidth = tabwidth |
| self.i = self.finished = 0 |
| self.blkopenline = self.indentedline = None |
| |
| def readline(self): |
| if self.finished: |
| return "" |
| i = self.i = self.i + 1 |
| mark = repr(i) + ".0" |
| if self.text.compare(mark, ">=", "end"): |
| return "" |
| return self.text.get(mark, mark + " lineend+1c") |
| |
| def tokeneater(self, type, token, start, end, line, |
| INDENT=tokenize.INDENT, |
| NAME=tokenize.NAME, |
| OPENERS=('class', 'def', 'for', 'if', 'try', 'while')): |
| if self.finished: |
| pass |
| elif type == NAME and token in OPENERS: |
| self.blkopenline = line |
| elif type == INDENT and self.blkopenline: |
| self.indentedline = line |
| self.finished = 1 |
| |
| def run(self): |
| save_tabsize = tokenize.tabsize |
| tokenize.tabsize = self.tabwidth |
| try: |
| try: |
| tokens = tokenize.generate_tokens(self.readline) |
| for token in tokens: |
| self.tokeneater(*token) |
| except (tokenize.TokenError, SyntaxError): |
| # since we cut off the tokenizer early, we can trigger |
| # spurious errors |
| pass |
| finally: |
| tokenize.tabsize = save_tabsize |
| return self.blkopenline, self.indentedline |
| |
| ### end autoindent code ### |
| |
| def prepstr(s): |
| # Helper to extract the underscore from a string, e.g. |
| # prepstr("Co_py") returns (2, "Copy"). |
| i = s.find('_') |
| if i >= 0: |
| s = s[:i] + s[i+1:] |
| return i, s |
| |
| |
| keynames = { |
| 'bracketleft': '[', |
| 'bracketright': ']', |
| 'slash': '/', |
| } |
| |
| def get_accelerator(keydefs, eventname): |
| keylist = keydefs.get(eventname) |
| # issue10940: temporary workaround to prevent hang with OS X Cocoa Tk 8.5 |
| # if not keylist: |
| if (not keylist) or (macosx.isCocoaTk() and eventname in { |
| "<<open-module>>", |
| "<<goto-line>>", |
| "<<change-indentwidth>>"}): |
| return "" |
| s = keylist[0] |
| s = re.sub(r"-[a-z]\b", lambda m: m.group().upper(), s) |
| s = re.sub(r"\b\w+\b", lambda m: keynames.get(m.group(), m.group()), s) |
| s = re.sub("Key-", "", s) |
| s = re.sub("Cancel","Ctrl-Break",s) # dscherer@cmu.edu |
| s = re.sub("Control-", "Ctrl-", s) |
| s = re.sub("-", "+", s) |
| s = re.sub("><", " ", s) |
| s = re.sub("<", "", s) |
| s = re.sub(">", "", s) |
| return s |
| |
| |
| def fixwordbreaks(root): |
| # On Windows, tcl/tk breaks 'words' only on spaces, as in Command Prompt. |
| # We want Motif style everywhere. See #21474, msg218992 and followup. |
| tk = root.tk |
| tk.call('tcl_wordBreakAfter', 'a b', 0) # make sure word.tcl is loaded |
| tk.call('set', 'tcl_wordchars', r'\w') |
| tk.call('set', 'tcl_nonwordchars', r'\W') |
| |
| |
| def _editor_window(parent): # htest # |
| # error if close master window first - timer event, after script |
| root = parent |
| fixwordbreaks(root) |
| if sys.argv[1:]: |
| filename = sys.argv[1] |
| else: |
| filename = None |
| macosx.setupApp(root, None) |
| edit = EditorWindow(root=root, filename=filename) |
| text = edit.text |
| text['height'] = 10 |
| for i in range(20): |
| text.insert('insert', ' '*i + str(i) + '\n') |
| # text.bind("<<close-all-windows>>", edit.close_event) |
| # Does not stop error, neither does following |
| # edit.text.bind("<<close-window>>", edit.close_event) |
| |
| if __name__ == '__main__': |
| from unittest import main |
| main('idlelib.idle_test.test_editor', verbosity=2, exit=False) |
| |
| from idlelib.idle_test.htest import run |
| run(_editor_window) |
