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278 lines
9.3 KiB
278 lines
9.3 KiB
6 years ago
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# IDLEX EXTENSION
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## """
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## Copyright(C) 2011 The Board of Trustees of the University of Illinois.
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## All rights reserved.
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##
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## Developed by: Roger D. Serwy
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## University of Illinois
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##
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## Permission is hereby granted, free of charge, to any person obtaining
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## a copy of this software and associated documentation files (the
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## "Software"), to deal with the Software without restriction, including
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## without limitation the rights to use, copy, modify, merge, publish,
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## distribute, sublicense, and/or sell copies of the Software, and to
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## permit persons to whom the Software is furnished to do so, subject to
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## the following conditions:
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##
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## + Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimers.
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## + Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimers in the
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## documentation and/or other materials provided with the distribution.
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## + Neither the names of Roger D. Serwy, the University of Illinois, nor
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## the names of its contributors may be used to endorse or promote
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## products derived from this Software without specific prior written
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## permission.
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##
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## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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## OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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## MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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## IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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## ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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## CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
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## THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
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##
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##
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##
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##
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## Terminal Mode Extension - makes PyShell behave more like a terminal
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##
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## This extension makes PyShell behave more like a terminal.
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## The cursor is confined to the input area. Up and down arrow keys
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## the navigate command history.
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##
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## Selected text in the Shell Window will not be copied to the
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## input area when pressing enter.
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##
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## Part of Issue2704
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##
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## """
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config_extension_def = """
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[Terminal]
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enable=1
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enable_shell=1
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enable_editor=0
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terminal=True
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[Terminal_cfgBindings]
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terminal-toggle=
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"""
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import sys
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if sys.version < '3':
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from Tkinter import INSERT, END, SEL_FIRST, SEL_LAST, SEL
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else:
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from tkinter import INSERT, END, SEL_FIRST, SEL_LAST, SEL
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from idlelib.configHandler import idleConf
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class Terminal:
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menudefs = [
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('options', [
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('!Terminal Mode', '<<terminal-toggle>>'),
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]),]
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def __init__(self, editwin):
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self.editwin = editwin
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self.text = self.editwin.text
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self.enabled = idleConf.GetOption("extensions", "Terminal",
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"terminal", type="bool", default=True)
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self.editwin.setvar("<<terminal-toggle>>", not not self.enabled)
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# this extension is loaded from EditorWindow.py, but before
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# PyShell.py makes its changes. Will use tk .after to make
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# changes
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self.last_insert = 'end-1c'
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if self.enabled:
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self.text.after(10, self.delay_init)
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def close(self):
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self.editwin = None
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self.text = None
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def delay_init(self):
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if hasattr(self.editwin, 'history'):
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self.terminal_mode_init()
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return
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self.text.after(100, self.delay_init)
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def terminal_toggle_event(self, event=None):
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self.enabled = not self.enabled
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self.editwin.setvar("<<terminal-toggle>>", not not self.enabled)
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if self.enabled == False:
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self.terminal_mode_exit()
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else:
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self.terminal_mode_init()
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idleConf.SetOption("extensions", "Terminal", "terminal", '%s' % self.enabled)
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def terminal_mode_init(self, event=None):
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# redefine some key bindings
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self.enabled = True
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text = self.editwin.text
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# up/down keys
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text.bind("<<term-key-up-callback>>", self.key_up_callback)
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text.bind("<<term-key-down-callback>>", self.key_down_callback)
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text.event_add("<<term-key-up-callback>>", "<Key-Up>")
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text.event_add("<<term-key-down-callback>>", "<Key-Down>")
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# page up/down keys
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text.bind("<<term-key-pgup-callback>>", self.key_pgup_callback, '+')
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text.bind("<<term-key-pgdown-callback>>", self.key_pgdown_callback, '+')
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text.event_add("<<term-key-pgup-callback>>", "<Key-Prior>")
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text.event_add("<<term-key-pgdown-callback>>", "<Key-Next>")
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# home
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text.bind("<<term-home-callback>>", self.home_callback, '+')
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text.event_add("<<term-home-callback>>", "<Key-Home>")
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# keep the cursor in the input area
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text.bind("<<key-in-input>>", self.key_in_input)
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text.event_add("<<key-in-input>>", "<Key-Left>")
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text.bind("<<mouse-press>>", self.mouse_press)
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text.event_add("<<mouse-press>>", "<ButtonPress>")
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text.bind("<<mouse-release>>", self.mouse_release)
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text.event_add("<<mouse-release>>", "<ButtonRelease>")
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# make sure cursor is in input
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self.key_in_input(event)
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# override the enter-recall functionality
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text.bind('<Return>', self.enter_callback)
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def enter_callback(self, ev=None):
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if self.enabled:
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self.text.tag_remove('sel', '1.0', 'end')
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return self.editwin.enter_callback(ev)
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def terminal_mode_exit(self, event=None):
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self.enabled = False
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text = self.editwin.text
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text.unbind("<<term-key-up-callback>>")
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text.unbind("<<term-key-down-callback>>")
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text.unbind("<<key-in-input>>")
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text.unbind("<<mouse-in-input>>")
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def home_callback(self, event):
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text = self.text
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if self.text.compare("insert", "<", "iomark"):
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self.text.mark_set("insert", "iomark")
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return "break"
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if self.text.compare("iomark", "==", "insert"):
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return "break"
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return
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def mouse_press(self, event=None):
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text = self.text
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self.last_insert = text.index('insert')
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if text.compare('insert', '<=', 'iomark'):
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self.last_insert = text.index('end-1c')
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def mouse_release(self, event=None):
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if self.enabled == False: return
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# a mouse click on the window
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text = self.text
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if text.compare('insert', '<=', 'iomark'):
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text.mark_set('insert', self.last_insert)
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def key_in_input(self, event=None):
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if self.enabled == False: return
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# some key stroke
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if self.text.compare('insert', '<=', 'iomark'):
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self.text.mark_set('insert', 'iomark')
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return "break"
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def key_pgup_callback(self, event):
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text = self.text
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text.yview_scroll(-1, 'pages')
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return "break"
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def key_pgdown_callback(self, event):
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text = self.text
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text.yview_scroll(1, 'pages')
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return "break"
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def history_ismember(self):
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""" if the current input is in the history, return true """
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s = self.editwin.history._get_source('iomark', 'end-1c')
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return (s in self.editwin.history.history)
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def key_up_callback(self, event):
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if self.enabled == False: return
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if self.editwin.executing:
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return "break"
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s = self.text.get('iomark', 'end-1c')
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if '\n' not in s:
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# single line input
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if self.text.compare('insert', '==', 'end-1c'):
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self.editwin.history.history_prev(event)
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return "break"
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else:
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self.text.mark_set('insert', 'end-1c')
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return "break"
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else:
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# multiline input
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if self.text.compare('insert', '==', 'end-1c'):
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if self.history_ismember():
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self.editwin.history.history_prev(event)
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return "break"
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elif self.text.compare('insert', '<=', 'iomark'):
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# don't leave the input area
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self.text.mark_set('insert', 'iomark')
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return "break"
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elif self.text.compare('insert-1l', '<=', 'iomark'):
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self.text.mark_set('insert', 'iomark')
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return "break"
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def key_down_callback(self, event):
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if self.enabled == False: return
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if self.editwin.executing:
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return "break"
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s = self.text.get('iomark', 'end-1c')
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if '\n' not in s:
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# single line input
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if self.text.compare('insert', '==', 'end-1c'):
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self.editwin.history.history_next(event)
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return "break"
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else:
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self.text.mark_set('insert', 'end-1c')
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return "break"
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else:
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# multiline input
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if self.text.compare('insert', '<', 'end-1c') and \
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self.text.compare('insert lineend', '==', 'end-1c'):
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self.text.mark_set('insert', 'end-1c')
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return "break"
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if self.history_ismember():
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if self.text.compare('insert', '==', 'end-1c'):
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self.editwin.history.history_next(event)
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return "break"
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elif self.text.compare('insert lineend', '==', 'end-1c'):
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return "break"
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