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@@ -1,590 +1,590 b'' | |||||
1 | from __future__ import print_function |
|
1 | from __future__ import print_function | |
2 |
|
2 | |||
3 | # Standard library imports |
|
3 | # Standard library imports | |
4 | from collections import namedtuple |
|
4 | from collections import namedtuple | |
5 | import sys |
|
5 | import sys | |
6 | import time |
|
6 | import time | |
7 |
|
7 | |||
8 | # System library imports |
|
8 | # System library imports | |
9 | from pygments.lexers import PythonLexer |
|
9 | from pygments.lexers import PythonLexer | |
10 | from PyQt4 import QtCore, QtGui |
|
10 | from PyQt4 import QtCore, QtGui | |
11 |
|
11 | |||
12 | # Local imports |
|
12 | # Local imports | |
13 | from IPython.core.inputsplitter import InputSplitter, transform_classic_prompt |
|
13 | from IPython.core.inputsplitter import InputSplitter, transform_classic_prompt | |
14 | from IPython.core.oinspect import call_tip |
|
14 | from IPython.core.oinspect import call_tip | |
15 | from IPython.frontend.qt.base_frontend_mixin import BaseFrontendMixin |
|
15 | from IPython.frontend.qt.base_frontend_mixin import BaseFrontendMixin | |
16 | from IPython.utils.traitlets import Bool |
|
16 | from IPython.utils.traitlets import Bool | |
17 | from bracket_matcher import BracketMatcher |
|
17 | from bracket_matcher import BracketMatcher | |
18 | from call_tip_widget import CallTipWidget |
|
18 | from call_tip_widget import CallTipWidget | |
19 | from completion_lexer import CompletionLexer |
|
19 | from completion_lexer import CompletionLexer | |
20 | from history_console_widget import HistoryConsoleWidget |
|
20 | from history_console_widget import HistoryConsoleWidget | |
21 | from pygments_highlighter import PygmentsHighlighter |
|
21 | from pygments_highlighter import PygmentsHighlighter | |
22 |
|
22 | |||
23 |
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23 | |||
24 | class FrontendHighlighter(PygmentsHighlighter): |
|
24 | class FrontendHighlighter(PygmentsHighlighter): | |
25 | """ A PygmentsHighlighter that can be turned on and off and that ignores |
|
25 | """ A PygmentsHighlighter that can be turned on and off and that ignores | |
26 | prompts. |
|
26 | prompts. | |
27 | """ |
|
27 | """ | |
28 |
|
28 | |||
29 | def __init__(self, frontend): |
|
29 | def __init__(self, frontend): | |
30 | super(FrontendHighlighter, self).__init__(frontend._control.document()) |
|
30 | super(FrontendHighlighter, self).__init__(frontend._control.document()) | |
31 | self._current_offset = 0 |
|
31 | self._current_offset = 0 | |
32 | self._frontend = frontend |
|
32 | self._frontend = frontend | |
33 | self.highlighting_on = False |
|
33 | self.highlighting_on = False | |
34 |
|
34 | |||
35 | def highlightBlock(self, qstring): |
|
35 | def highlightBlock(self, qstring): | |
36 | """ Highlight a block of text. Reimplemented to highlight selectively. |
|
36 | """ Highlight a block of text. Reimplemented to highlight selectively. | |
37 | """ |
|
37 | """ | |
38 | if not self.highlighting_on: |
|
38 | if not self.highlighting_on: | |
39 | return |
|
39 | return | |
40 |
|
40 | |||
41 | # The input to this function is unicode string that may contain |
|
41 | # The input to this function is unicode string that may contain | |
42 | # paragraph break characters, non-breaking spaces, etc. Here we acquire |
|
42 | # paragraph break characters, non-breaking spaces, etc. Here we acquire | |
43 | # the string as plain text so we can compare it. |
|
43 | # the string as plain text so we can compare it. | |
44 | current_block = self.currentBlock() |
|
44 | current_block = self.currentBlock() | |
45 | string = self._frontend._get_block_plain_text(current_block) |
|
45 | string = self._frontend._get_block_plain_text(current_block) | |
46 |
|
46 | |||
47 | # Decide whether to check for the regular or continuation prompt. |
|
47 | # Decide whether to check for the regular or continuation prompt. | |
48 | if current_block.contains(self._frontend._prompt_pos): |
|
48 | if current_block.contains(self._frontend._prompt_pos): | |
49 | prompt = self._frontend._prompt |
|
49 | prompt = self._frontend._prompt | |
50 | else: |
|
50 | else: | |
51 | prompt = self._frontend._continuation_prompt |
|
51 | prompt = self._frontend._continuation_prompt | |
52 |
|
52 | |||
53 | # Don't highlight the part of the string that contains the prompt. |
|
53 | # Don't highlight the part of the string that contains the prompt. | |
54 | if string.startswith(prompt): |
|
54 | if string.startswith(prompt): | |
55 | self._current_offset = len(prompt) |
|
55 | self._current_offset = len(prompt) | |
56 | qstring.remove(0, len(prompt)) |
|
56 | qstring.remove(0, len(prompt)) | |
57 | else: |
|
57 | else: | |
58 | self._current_offset = 0 |
|
58 | self._current_offset = 0 | |
59 |
|
59 | |||
60 | PygmentsHighlighter.highlightBlock(self, qstring) |
|
60 | PygmentsHighlighter.highlightBlock(self, qstring) | |
61 |
|
61 | |||
62 | def rehighlightBlock(self, block): |
|
62 | def rehighlightBlock(self, block): | |
63 | """ Reimplemented to temporarily enable highlighting if disabled. |
|
63 | """ Reimplemented to temporarily enable highlighting if disabled. | |
64 | """ |
|
64 | """ | |
65 | old = self.highlighting_on |
|
65 | old = self.highlighting_on | |
66 | self.highlighting_on = True |
|
66 | self.highlighting_on = True | |
67 | super(FrontendHighlighter, self).rehighlightBlock(block) |
|
67 | super(FrontendHighlighter, self).rehighlightBlock(block) | |
68 | self.highlighting_on = old |
|
68 | self.highlighting_on = old | |
69 |
|
69 | |||
70 | def setFormat(self, start, count, format): |
|
70 | def setFormat(self, start, count, format): | |
71 | """ Reimplemented to highlight selectively. |
|
71 | """ Reimplemented to highlight selectively. | |
72 | """ |
|
72 | """ | |
73 | start += self._current_offset |
|
73 | start += self._current_offset | |
74 | PygmentsHighlighter.setFormat(self, start, count, format) |
|
74 | PygmentsHighlighter.setFormat(self, start, count, format) | |
75 |
|
75 | |||
76 |
|
76 | |||
77 | class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin): |
|
77 | class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin): | |
78 | """ A Qt frontend for a generic Python kernel. |
|
78 | """ A Qt frontend for a generic Python kernel. | |
79 | """ |
|
79 | """ | |
80 |
|
80 | |||
81 | # An option and corresponding signal for overriding the default kernel |
|
81 | # An option and corresponding signal for overriding the default kernel | |
82 | # interrupt behavior. |
|
82 | # interrupt behavior. | |
83 | custom_interrupt = Bool(False) |
|
83 | custom_interrupt = Bool(False) | |
84 | custom_interrupt_requested = QtCore.pyqtSignal() |
|
84 | custom_interrupt_requested = QtCore.pyqtSignal() | |
85 |
|
85 | |||
86 | # An option and corresponding signals for overriding the default kernel |
|
86 | # An option and corresponding signals for overriding the default kernel | |
87 | # restart behavior. |
|
87 | # restart behavior. | |
88 | custom_restart = Bool(False) |
|
88 | custom_restart = Bool(False) | |
89 | custom_restart_kernel_died = QtCore.pyqtSignal(float) |
|
89 | custom_restart_kernel_died = QtCore.pyqtSignal(float) | |
90 | custom_restart_requested = QtCore.pyqtSignal() |
|
90 | custom_restart_requested = QtCore.pyqtSignal() | |
91 |
|
91 | |||
92 | # Emitted when an 'execute_reply' has been received from the kernel and |
|
92 | # Emitted when an 'execute_reply' has been received from the kernel and | |
93 | # processed by the FrontendWidget. |
|
93 | # processed by the FrontendWidget. | |
94 | executed = QtCore.pyqtSignal(object) |
|
94 | executed = QtCore.pyqtSignal(object) | |
95 |
|
95 | |||
96 | # Emitted when an exit request has been received from the kernel. |
|
96 | # Emitted when an exit request has been received from the kernel. | |
97 | exit_requested = QtCore.pyqtSignal() |
|
97 | exit_requested = QtCore.pyqtSignal() | |
98 |
|
98 | |||
99 | # Protected class variables. |
|
99 | # Protected class variables. | |
100 | _CallTipRequest = namedtuple('_CallTipRequest', ['id', 'pos']) |
|
100 | _CallTipRequest = namedtuple('_CallTipRequest', ['id', 'pos']) | |
101 | _CompletionRequest = namedtuple('_CompletionRequest', ['id', 'pos']) |
|
101 | _CompletionRequest = namedtuple('_CompletionRequest', ['id', 'pos']) | |
102 | _ExecutionRequest = namedtuple('_ExecutionRequest', ['id', 'kind']) |
|
102 | _ExecutionRequest = namedtuple('_ExecutionRequest', ['id', 'kind']) | |
103 | _input_splitter_class = InputSplitter |
|
103 | _input_splitter_class = InputSplitter | |
104 | _local_kernel = False |
|
104 | _local_kernel = False | |
105 |
|
105 | |||
106 | #--------------------------------------------------------------------------- |
|
106 | #--------------------------------------------------------------------------- | |
107 | # 'object' interface |
|
107 | # 'object' interface | |
108 | #--------------------------------------------------------------------------- |
|
108 | #--------------------------------------------------------------------------- | |
109 |
|
109 | |||
110 | def __init__(self, *args, **kw): |
|
110 | def __init__(self, *args, **kw): | |
111 | super(FrontendWidget, self).__init__(*args, **kw) |
|
111 | super(FrontendWidget, self).__init__(*args, **kw) | |
112 |
|
112 | |||
113 | # FrontendWidget protected variables. |
|
113 | # FrontendWidget protected variables. | |
114 | self._bracket_matcher = BracketMatcher(self._control) |
|
114 | self._bracket_matcher = BracketMatcher(self._control) | |
115 | self._call_tip_widget = CallTipWidget(self._control) |
|
115 | self._call_tip_widget = CallTipWidget(self._control) | |
116 | self._completion_lexer = CompletionLexer(PythonLexer()) |
|
116 | self._completion_lexer = CompletionLexer(PythonLexer()) | |
117 | self._copy_raw_action = QtGui.QAction('Copy (Raw Text)', None) |
|
117 | self._copy_raw_action = QtGui.QAction('Copy (Raw Text)', None) | |
118 | self._hidden = False |
|
118 | self._hidden = False | |
119 | self._highlighter = FrontendHighlighter(self) |
|
119 | self._highlighter = FrontendHighlighter(self) | |
120 | self._input_splitter = self._input_splitter_class(input_mode='cell') |
|
120 | self._input_splitter = self._input_splitter_class(input_mode='cell') | |
121 | self._kernel_manager = None |
|
121 | self._kernel_manager = None | |
122 | self._request_info = {} |
|
122 | self._request_info = {} | |
123 |
|
123 | |||
124 | # Configure the ConsoleWidget. |
|
124 | # Configure the ConsoleWidget. | |
125 | self.tab_width = 4 |
|
125 | self.tab_width = 4 | |
126 | self._set_continuation_prompt('... ') |
|
126 | self._set_continuation_prompt('... ') | |
127 |
|
127 | |||
128 | # Configure the CallTipWidget. |
|
128 | # Configure the CallTipWidget. | |
129 | self._call_tip_widget.setFont(self.font) |
|
129 | self._call_tip_widget.setFont(self.font) | |
130 | self.font_changed.connect(self._call_tip_widget.setFont) |
|
130 | self.font_changed.connect(self._call_tip_widget.setFont) | |
131 |
|
131 | |||
132 | # Configure actions. |
|
132 | # Configure actions. | |
133 | action = self._copy_raw_action |
|
133 | action = self._copy_raw_action | |
134 | key = QtCore.Qt.CTRL | QtCore.Qt.SHIFT | QtCore.Qt.Key_C |
|
134 | key = QtCore.Qt.CTRL | QtCore.Qt.SHIFT | QtCore.Qt.Key_C | |
135 | action.setEnabled(False) |
|
135 | action.setEnabled(False) | |
136 | action.setShortcut(QtGui.QKeySequence(key)) |
|
136 | action.setShortcut(QtGui.QKeySequence(key)) | |
137 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) |
|
137 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) | |
138 | action.triggered.connect(self.copy_raw) |
|
138 | action.triggered.connect(self.copy_raw) | |
139 | self.copy_available.connect(action.setEnabled) |
|
139 | self.copy_available.connect(action.setEnabled) | |
140 | self.addAction(action) |
|
140 | self.addAction(action) | |
141 |
|
141 | |||
142 | # Connect signal handlers. |
|
142 | # Connect signal handlers. | |
143 | document = self._control.document() |
|
143 | document = self._control.document() | |
144 | document.contentsChange.connect(self._document_contents_change) |
|
144 | document.contentsChange.connect(self._document_contents_change) | |
145 |
|
145 | |||
146 | # set flag for whether we are connected via localhost |
|
146 | # set flag for whether we are connected via localhost | |
147 |
self._local_kernel = kw.get('local_kernel', F |
|
147 | self._local_kernel = kw.get('local_kernel', FrontendWidget._local_kernel) | |
148 |
|
148 | |||
149 | #--------------------------------------------------------------------------- |
|
149 | #--------------------------------------------------------------------------- | |
150 | # 'ConsoleWidget' public interface |
|
150 | # 'ConsoleWidget' public interface | |
151 | #--------------------------------------------------------------------------- |
|
151 | #--------------------------------------------------------------------------- | |
152 |
|
152 | |||
153 | def copy(self): |
|
153 | def copy(self): | |
154 | """ Copy the currently selected text to the clipboard, removing prompts. |
|
154 | """ Copy the currently selected text to the clipboard, removing prompts. | |
155 | """ |
|
155 | """ | |
156 | text = unicode(self._control.textCursor().selection().toPlainText()) |
|
156 | text = unicode(self._control.textCursor().selection().toPlainText()) | |
157 | if text: |
|
157 | if text: | |
158 | lines = map(transform_classic_prompt, text.splitlines()) |
|
158 | lines = map(transform_classic_prompt, text.splitlines()) | |
159 | text = '\n'.join(lines) |
|
159 | text = '\n'.join(lines) | |
160 | QtGui.QApplication.clipboard().setText(text) |
|
160 | QtGui.QApplication.clipboard().setText(text) | |
161 |
|
161 | |||
162 | #--------------------------------------------------------------------------- |
|
162 | #--------------------------------------------------------------------------- | |
163 | # 'ConsoleWidget' abstract interface |
|
163 | # 'ConsoleWidget' abstract interface | |
164 | #--------------------------------------------------------------------------- |
|
164 | #--------------------------------------------------------------------------- | |
165 |
|
165 | |||
166 | def _is_complete(self, source, interactive): |
|
166 | def _is_complete(self, source, interactive): | |
167 | """ Returns whether 'source' can be completely processed and a new |
|
167 | """ Returns whether 'source' can be completely processed and a new | |
168 | prompt created. When triggered by an Enter/Return key press, |
|
168 | prompt created. When triggered by an Enter/Return key press, | |
169 | 'interactive' is True; otherwise, it is False. |
|
169 | 'interactive' is True; otherwise, it is False. | |
170 | """ |
|
170 | """ | |
171 | complete = self._input_splitter.push(source) |
|
171 | complete = self._input_splitter.push(source) | |
172 | if interactive: |
|
172 | if interactive: | |
173 | complete = not self._input_splitter.push_accepts_more() |
|
173 | complete = not self._input_splitter.push_accepts_more() | |
174 | return complete |
|
174 | return complete | |
175 |
|
175 | |||
176 | def _execute(self, source, hidden): |
|
176 | def _execute(self, source, hidden): | |
177 | """ Execute 'source'. If 'hidden', do not show any output. |
|
177 | """ Execute 'source'. If 'hidden', do not show any output. | |
178 |
|
178 | |||
179 | See parent class :meth:`execute` docstring for full details. |
|
179 | See parent class :meth:`execute` docstring for full details. | |
180 | """ |
|
180 | """ | |
181 | msg_id = self.kernel_manager.xreq_channel.execute(source, hidden) |
|
181 | msg_id = self.kernel_manager.xreq_channel.execute(source, hidden) | |
182 | self._request_info['execute'] = self._ExecutionRequest(msg_id, 'user') |
|
182 | self._request_info['execute'] = self._ExecutionRequest(msg_id, 'user') | |
183 | self._hidden = hidden |
|
183 | self._hidden = hidden | |
184 |
|
184 | |||
185 | def _prompt_started_hook(self): |
|
185 | def _prompt_started_hook(self): | |
186 | """ Called immediately after a new prompt is displayed. |
|
186 | """ Called immediately after a new prompt is displayed. | |
187 | """ |
|
187 | """ | |
188 | if not self._reading: |
|
188 | if not self._reading: | |
189 | self._highlighter.highlighting_on = True |
|
189 | self._highlighter.highlighting_on = True | |
190 |
|
190 | |||
191 | def _prompt_finished_hook(self): |
|
191 | def _prompt_finished_hook(self): | |
192 | """ Called immediately after a prompt is finished, i.e. when some input |
|
192 | """ Called immediately after a prompt is finished, i.e. when some input | |
193 | will be processed and a new prompt displayed. |
|
193 | will be processed and a new prompt displayed. | |
194 | """ |
|
194 | """ | |
195 | if not self._reading: |
|
195 | if not self._reading: | |
196 | self._highlighter.highlighting_on = False |
|
196 | self._highlighter.highlighting_on = False | |
197 |
|
197 | |||
198 | def _tab_pressed(self): |
|
198 | def _tab_pressed(self): | |
199 | """ Called when the tab key is pressed. Returns whether to continue |
|
199 | """ Called when the tab key is pressed. Returns whether to continue | |
200 | processing the event. |
|
200 | processing the event. | |
201 | """ |
|
201 | """ | |
202 | # Perform tab completion if: |
|
202 | # Perform tab completion if: | |
203 | # 1) The cursor is in the input buffer. |
|
203 | # 1) The cursor is in the input buffer. | |
204 | # 2) There is a non-whitespace character before the cursor. |
|
204 | # 2) There is a non-whitespace character before the cursor. | |
205 | text = self._get_input_buffer_cursor_line() |
|
205 | text = self._get_input_buffer_cursor_line() | |
206 | if text is None: |
|
206 | if text is None: | |
207 | return False |
|
207 | return False | |
208 | complete = bool(text[:self._get_input_buffer_cursor_column()].strip()) |
|
208 | complete = bool(text[:self._get_input_buffer_cursor_column()].strip()) | |
209 | if complete: |
|
209 | if complete: | |
210 | self._complete() |
|
210 | self._complete() | |
211 | return not complete |
|
211 | return not complete | |
212 |
|
212 | |||
213 | #--------------------------------------------------------------------------- |
|
213 | #--------------------------------------------------------------------------- | |
214 | # 'ConsoleWidget' protected interface |
|
214 | # 'ConsoleWidget' protected interface | |
215 | #--------------------------------------------------------------------------- |
|
215 | #--------------------------------------------------------------------------- | |
216 |
|
216 | |||
217 | def _context_menu_make(self, pos): |
|
217 | def _context_menu_make(self, pos): | |
218 | """ Reimplemented to add an action for raw copy. |
|
218 | """ Reimplemented to add an action for raw copy. | |
219 | """ |
|
219 | """ | |
220 | menu = super(FrontendWidget, self)._context_menu_make(pos) |
|
220 | menu = super(FrontendWidget, self)._context_menu_make(pos) | |
221 | for before_action in menu.actions(): |
|
221 | for before_action in menu.actions(): | |
222 | if before_action.shortcut().matches(QtGui.QKeySequence.Paste) == \ |
|
222 | if before_action.shortcut().matches(QtGui.QKeySequence.Paste) == \ | |
223 | QtGui.QKeySequence.ExactMatch: |
|
223 | QtGui.QKeySequence.ExactMatch: | |
224 | menu.insertAction(before_action, self._copy_raw_action) |
|
224 | menu.insertAction(before_action, self._copy_raw_action) | |
225 | break |
|
225 | break | |
226 | return menu |
|
226 | return menu | |
227 |
|
227 | |||
228 | def _event_filter_console_keypress(self, event): |
|
228 | def _event_filter_console_keypress(self, event): | |
229 | """ Reimplemented for execution interruption and smart backspace. |
|
229 | """ Reimplemented for execution interruption and smart backspace. | |
230 | """ |
|
230 | """ | |
231 | key = event.key() |
|
231 | key = event.key() | |
232 | if self._control_key_down(event.modifiers(), include_command=False): |
|
232 | if self._control_key_down(event.modifiers(), include_command=False): | |
233 |
|
233 | |||
234 | if key == QtCore.Qt.Key_C and self._executing: |
|
234 | if key == QtCore.Qt.Key_C and self._executing: | |
235 | self.interrupt_kernel() |
|
235 | self.interrupt_kernel() | |
236 | return True |
|
236 | return True | |
237 |
|
237 | |||
238 | elif key == QtCore.Qt.Key_Period: |
|
238 | elif key == QtCore.Qt.Key_Period: | |
239 | message = 'Are you sure you want to restart the kernel?' |
|
239 | message = 'Are you sure you want to restart the kernel?' | |
240 | self.restart_kernel(message, now=False) |
|
240 | self.restart_kernel(message, now=False) | |
241 | return True |
|
241 | return True | |
242 |
|
242 | |||
243 | elif not event.modifiers() & QtCore.Qt.AltModifier: |
|
243 | elif not event.modifiers() & QtCore.Qt.AltModifier: | |
244 |
|
244 | |||
245 | # Smart backspace: remove four characters in one backspace if: |
|
245 | # Smart backspace: remove four characters in one backspace if: | |
246 | # 1) everything left of the cursor is whitespace |
|
246 | # 1) everything left of the cursor is whitespace | |
247 | # 2) the four characters immediately left of the cursor are spaces |
|
247 | # 2) the four characters immediately left of the cursor are spaces | |
248 | if key == QtCore.Qt.Key_Backspace: |
|
248 | if key == QtCore.Qt.Key_Backspace: | |
249 | col = self._get_input_buffer_cursor_column() |
|
249 | col = self._get_input_buffer_cursor_column() | |
250 | cursor = self._control.textCursor() |
|
250 | cursor = self._control.textCursor() | |
251 | if col > 3 and not cursor.hasSelection(): |
|
251 | if col > 3 and not cursor.hasSelection(): | |
252 | text = self._get_input_buffer_cursor_line()[:col] |
|
252 | text = self._get_input_buffer_cursor_line()[:col] | |
253 | if text.endswith(' ') and not text.strip(): |
|
253 | if text.endswith(' ') and not text.strip(): | |
254 | cursor.movePosition(QtGui.QTextCursor.Left, |
|
254 | cursor.movePosition(QtGui.QTextCursor.Left, | |
255 | QtGui.QTextCursor.KeepAnchor, 4) |
|
255 | QtGui.QTextCursor.KeepAnchor, 4) | |
256 | cursor.removeSelectedText() |
|
256 | cursor.removeSelectedText() | |
257 | return True |
|
257 | return True | |
258 |
|
258 | |||
259 | return super(FrontendWidget, self)._event_filter_console_keypress(event) |
|
259 | return super(FrontendWidget, self)._event_filter_console_keypress(event) | |
260 |
|
260 | |||
261 | def _insert_continuation_prompt(self, cursor): |
|
261 | def _insert_continuation_prompt(self, cursor): | |
262 | """ Reimplemented for auto-indentation. |
|
262 | """ Reimplemented for auto-indentation. | |
263 | """ |
|
263 | """ | |
264 | super(FrontendWidget, self)._insert_continuation_prompt(cursor) |
|
264 | super(FrontendWidget, self)._insert_continuation_prompt(cursor) | |
265 | cursor.insertText(' ' * self._input_splitter.indent_spaces) |
|
265 | cursor.insertText(' ' * self._input_splitter.indent_spaces) | |
266 |
|
266 | |||
267 | #--------------------------------------------------------------------------- |
|
267 | #--------------------------------------------------------------------------- | |
268 | # 'BaseFrontendMixin' abstract interface |
|
268 | # 'BaseFrontendMixin' abstract interface | |
269 | #--------------------------------------------------------------------------- |
|
269 | #--------------------------------------------------------------------------- | |
270 |
|
270 | |||
271 | def _handle_complete_reply(self, rep): |
|
271 | def _handle_complete_reply(self, rep): | |
272 | """ Handle replies for tab completion. |
|
272 | """ Handle replies for tab completion. | |
273 | """ |
|
273 | """ | |
274 | cursor = self._get_cursor() |
|
274 | cursor = self._get_cursor() | |
275 | info = self._request_info.get('complete') |
|
275 | info = self._request_info.get('complete') | |
276 | if info and info.id == rep['parent_header']['msg_id'] and \ |
|
276 | if info and info.id == rep['parent_header']['msg_id'] and \ | |
277 | info.pos == cursor.position(): |
|
277 | info.pos == cursor.position(): | |
278 | text = '.'.join(self._get_context()) |
|
278 | text = '.'.join(self._get_context()) | |
279 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(text)) |
|
279 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(text)) | |
280 | self._complete_with_items(cursor, rep['content']['matches']) |
|
280 | self._complete_with_items(cursor, rep['content']['matches']) | |
281 |
|
281 | |||
282 | def _handle_execute_reply(self, msg): |
|
282 | def _handle_execute_reply(self, msg): | |
283 | """ Handles replies for code execution. |
|
283 | """ Handles replies for code execution. | |
284 | """ |
|
284 | """ | |
285 | info = self._request_info.get('execute') |
|
285 | info = self._request_info.get('execute') | |
286 | if info and info.id == msg['parent_header']['msg_id'] and \ |
|
286 | if info and info.id == msg['parent_header']['msg_id'] and \ | |
287 | info.kind == 'user' and not self._hidden: |
|
287 | info.kind == 'user' and not self._hidden: | |
288 | # Make sure that all output from the SUB channel has been processed |
|
288 | # Make sure that all output from the SUB channel has been processed | |
289 | # before writing a new prompt. |
|
289 | # before writing a new prompt. | |
290 | self.kernel_manager.sub_channel.flush() |
|
290 | self.kernel_manager.sub_channel.flush() | |
291 |
|
291 | |||
292 | # Reset the ANSI style information to prevent bad text in stdout |
|
292 | # Reset the ANSI style information to prevent bad text in stdout | |
293 | # from messing up our colors. We're not a true terminal so we're |
|
293 | # from messing up our colors. We're not a true terminal so we're | |
294 | # allowed to do this. |
|
294 | # allowed to do this. | |
295 | if self.ansi_codes: |
|
295 | if self.ansi_codes: | |
296 | self._ansi_processor.reset_sgr() |
|
296 | self._ansi_processor.reset_sgr() | |
297 |
|
297 | |||
298 | content = msg['content'] |
|
298 | content = msg['content'] | |
299 | status = content['status'] |
|
299 | status = content['status'] | |
300 | if status == 'ok': |
|
300 | if status == 'ok': | |
301 | self._process_execute_ok(msg) |
|
301 | self._process_execute_ok(msg) | |
302 | elif status == 'error': |
|
302 | elif status == 'error': | |
303 | self._process_execute_error(msg) |
|
303 | self._process_execute_error(msg) | |
304 | elif status == 'abort': |
|
304 | elif status == 'abort': | |
305 | self._process_execute_abort(msg) |
|
305 | self._process_execute_abort(msg) | |
306 |
|
306 | |||
307 | self._show_interpreter_prompt_for_reply(msg) |
|
307 | self._show_interpreter_prompt_for_reply(msg) | |
308 | self.executed.emit(msg) |
|
308 | self.executed.emit(msg) | |
309 |
|
309 | |||
310 | def _handle_input_request(self, msg): |
|
310 | def _handle_input_request(self, msg): | |
311 | """ Handle requests for raw_input. |
|
311 | """ Handle requests for raw_input. | |
312 | """ |
|
312 | """ | |
313 | if self._hidden: |
|
313 | if self._hidden: | |
314 | raise RuntimeError('Request for raw input during hidden execution.') |
|
314 | raise RuntimeError('Request for raw input during hidden execution.') | |
315 |
|
315 | |||
316 | # Make sure that all output from the SUB channel has been processed |
|
316 | # Make sure that all output from the SUB channel has been processed | |
317 | # before entering readline mode. |
|
317 | # before entering readline mode. | |
318 | self.kernel_manager.sub_channel.flush() |
|
318 | self.kernel_manager.sub_channel.flush() | |
319 |
|
319 | |||
320 | def callback(line): |
|
320 | def callback(line): | |
321 | self.kernel_manager.rep_channel.input(line) |
|
321 | self.kernel_manager.rep_channel.input(line) | |
322 | self._readline(msg['content']['prompt'], callback=callback) |
|
322 | self._readline(msg['content']['prompt'], callback=callback) | |
323 |
|
323 | |||
324 | def _handle_kernel_died(self, since_last_heartbeat): |
|
324 | def _handle_kernel_died(self, since_last_heartbeat): | |
325 | """ Handle the kernel's death by asking if the user wants to restart. |
|
325 | """ Handle the kernel's death by asking if the user wants to restart. | |
326 | """ |
|
326 | """ | |
327 | if self.custom_restart: |
|
327 | if self.custom_restart: | |
328 | self.custom_restart_kernel_died.emit(since_last_heartbeat) |
|
328 | self.custom_restart_kernel_died.emit(since_last_heartbeat) | |
329 | else: |
|
329 | else: | |
330 | message = 'The kernel heartbeat has been inactive for %.2f ' \ |
|
330 | message = 'The kernel heartbeat has been inactive for %.2f ' \ | |
331 | 'seconds. Do you want to restart the kernel? You may ' \ |
|
331 | 'seconds. Do you want to restart the kernel? You may ' \ | |
332 | 'first want to check the network connection.' % \ |
|
332 | 'first want to check the network connection.' % \ | |
333 | since_last_heartbeat |
|
333 | since_last_heartbeat | |
334 | self.restart_kernel(message, now=True) |
|
334 | self.restart_kernel(message, now=True) | |
335 |
|
335 | |||
336 | def _handle_object_info_reply(self, rep): |
|
336 | def _handle_object_info_reply(self, rep): | |
337 | """ Handle replies for call tips. |
|
337 | """ Handle replies for call tips. | |
338 | """ |
|
338 | """ | |
339 | cursor = self._get_cursor() |
|
339 | cursor = self._get_cursor() | |
340 | info = self._request_info.get('call_tip') |
|
340 | info = self._request_info.get('call_tip') | |
341 | if info and info.id == rep['parent_header']['msg_id'] and \ |
|
341 | if info and info.id == rep['parent_header']['msg_id'] and \ | |
342 | info.pos == cursor.position(): |
|
342 | info.pos == cursor.position(): | |
343 | # Get the information for a call tip. For now we format the call |
|
343 | # Get the information for a call tip. For now we format the call | |
344 | # line as string, later we can pass False to format_call and |
|
344 | # line as string, later we can pass False to format_call and | |
345 | # syntax-highlight it ourselves for nicer formatting in the |
|
345 | # syntax-highlight it ourselves for nicer formatting in the | |
346 | # calltip. |
|
346 | # calltip. | |
347 | call_info, doc = call_tip(rep['content'], format_call=True) |
|
347 | call_info, doc = call_tip(rep['content'], format_call=True) | |
348 | if call_info or doc: |
|
348 | if call_info or doc: | |
349 | self._call_tip_widget.show_call_info(call_info, doc) |
|
349 | self._call_tip_widget.show_call_info(call_info, doc) | |
350 |
|
350 | |||
351 | def _handle_pyout(self, msg): |
|
351 | def _handle_pyout(self, msg): | |
352 | """ Handle display hook output. |
|
352 | """ Handle display hook output. | |
353 | """ |
|
353 | """ | |
354 | if not self._hidden and self._is_from_this_session(msg): |
|
354 | if not self._hidden and self._is_from_this_session(msg): | |
355 | self._append_plain_text(msg['content']['data'] + '\n') |
|
355 | self._append_plain_text(msg['content']['data'] + '\n') | |
356 |
|
356 | |||
357 | def _handle_stream(self, msg): |
|
357 | def _handle_stream(self, msg): | |
358 | """ Handle stdout, stderr, and stdin. |
|
358 | """ Handle stdout, stderr, and stdin. | |
359 | """ |
|
359 | """ | |
360 | if not self._hidden and self._is_from_this_session(msg): |
|
360 | if not self._hidden and self._is_from_this_session(msg): | |
361 | # Most consoles treat tabs as being 8 space characters. Convert tabs |
|
361 | # Most consoles treat tabs as being 8 space characters. Convert tabs | |
362 | # to spaces so that output looks as expected regardless of this |
|
362 | # to spaces so that output looks as expected regardless of this | |
363 | # widget's tab width. |
|
363 | # widget's tab width. | |
364 | text = msg['content']['data'].expandtabs(8) |
|
364 | text = msg['content']['data'].expandtabs(8) | |
365 |
|
365 | |||
366 | self._append_plain_text(text) |
|
366 | self._append_plain_text(text) | |
367 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
367 | self._control.moveCursor(QtGui.QTextCursor.End) | |
368 |
|
368 | |||
369 | def _handle_shutdown_reply(self, msg): |
|
369 | def _handle_shutdown_reply(self, msg): | |
370 | """ Handle shutdown signal, only if from other console. |
|
370 | """ Handle shutdown signal, only if from other console. | |
371 | """ |
|
371 | """ | |
372 | if not self._hidden and not self._is_from_this_session(msg): |
|
372 | if not self._hidden and not self._is_from_this_session(msg): | |
373 | if self._local_kernel: |
|
373 | if self._local_kernel: | |
374 | if not msg['content']['restart']: |
|
374 | if not msg['content']['restart']: | |
375 | sys.exit(0) |
|
375 | sys.exit(0) | |
376 | else: |
|
376 | else: | |
377 | # we just got notified of a restart! |
|
377 | # we just got notified of a restart! | |
378 | time.sleep(0.25) # wait 1/4 sec to reset |
|
378 | time.sleep(0.25) # wait 1/4 sec to reset | |
379 | # lest the request for a new prompt |
|
379 | # lest the request for a new prompt | |
380 | # goes to the old kernel |
|
380 | # goes to the old kernel | |
381 | self.reset() |
|
381 | self.reset() | |
382 | else: # remote kernel, prompt on Kernel shutdown/reset |
|
382 | else: # remote kernel, prompt on Kernel shutdown/reset | |
383 | title = self.window().windowTitle() |
|
383 | title = self.window().windowTitle() | |
384 | if not msg['content']['restart']: |
|
384 | if not msg['content']['restart']: | |
385 | reply = QtGui.QMessageBox.question(self, title, |
|
385 | reply = QtGui.QMessageBox.question(self, title, | |
386 | "Kernel has been shutdown permanently. Close the Console?", |
|
386 | "Kernel has been shutdown permanently. Close the Console?", | |
387 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) |
|
387 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) | |
388 | if reply == QtGui.QMessageBox.Yes: |
|
388 | if reply == QtGui.QMessageBox.Yes: | |
389 | sys.exit(0) |
|
389 | sys.exit(0) | |
390 | else: |
|
390 | else: | |
391 | reply = QtGui.QMessageBox.question(self, title, |
|
391 | reply = QtGui.QMessageBox.question(self, title, | |
392 | "Kernel has been reset. Clear the Console?", |
|
392 | "Kernel has been reset. Clear the Console?", | |
393 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) |
|
393 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) | |
394 | if reply == QtGui.QMessageBox.Yes: |
|
394 | if reply == QtGui.QMessageBox.Yes: | |
395 | time.sleep(0.25) # wait 1/4 sec to reset |
|
395 | time.sleep(0.25) # wait 1/4 sec to reset | |
396 | # lest the request for a new prompt |
|
396 | # lest the request for a new prompt | |
397 | # goes to the old kernel |
|
397 | # goes to the old kernel | |
398 | self.reset() |
|
398 | self.reset() | |
399 |
|
399 | |||
400 | def _started_channels(self): |
|
400 | def _started_channels(self): | |
401 | """ Called when the KernelManager channels have started listening or |
|
401 | """ Called when the KernelManager channels have started listening or | |
402 | when the frontend is assigned an already listening KernelManager. |
|
402 | when the frontend is assigned an already listening KernelManager. | |
403 | """ |
|
403 | """ | |
404 | self.reset() |
|
404 | self.reset() | |
405 |
|
405 | |||
406 | #--------------------------------------------------------------------------- |
|
406 | #--------------------------------------------------------------------------- | |
407 | # 'FrontendWidget' public interface |
|
407 | # 'FrontendWidget' public interface | |
408 | #--------------------------------------------------------------------------- |
|
408 | #--------------------------------------------------------------------------- | |
409 |
|
409 | |||
410 | def copy_raw(self): |
|
410 | def copy_raw(self): | |
411 | """ Copy the currently selected text to the clipboard without attempting |
|
411 | """ Copy the currently selected text to the clipboard without attempting | |
412 | to remove prompts or otherwise alter the text. |
|
412 | to remove prompts or otherwise alter the text. | |
413 | """ |
|
413 | """ | |
414 | self._control.copy() |
|
414 | self._control.copy() | |
415 |
|
415 | |||
416 | def execute_file(self, path, hidden=False): |
|
416 | def execute_file(self, path, hidden=False): | |
417 | """ Attempts to execute file with 'path'. If 'hidden', no output is |
|
417 | """ Attempts to execute file with 'path'. If 'hidden', no output is | |
418 | shown. |
|
418 | shown. | |
419 | """ |
|
419 | """ | |
420 | self.execute('execfile("%s")' % path, hidden=hidden) |
|
420 | self.execute('execfile("%s")' % path, hidden=hidden) | |
421 |
|
421 | |||
422 | def interrupt_kernel(self): |
|
422 | def interrupt_kernel(self): | |
423 | """ Attempts to interrupt the running kernel. |
|
423 | """ Attempts to interrupt the running kernel. | |
424 | """ |
|
424 | """ | |
425 | if self.custom_interrupt: |
|
425 | if self.custom_interrupt: | |
426 | self.custom_interrupt_requested.emit() |
|
426 | self.custom_interrupt_requested.emit() | |
427 | elif self.kernel_manager.has_kernel: |
|
427 | elif self.kernel_manager.has_kernel: | |
428 | self.kernel_manager.interrupt_kernel() |
|
428 | self.kernel_manager.interrupt_kernel() | |
429 | else: |
|
429 | else: | |
430 | self._append_plain_text('Kernel process is either remote or ' |
|
430 | self._append_plain_text('Kernel process is either remote or ' | |
431 | 'unspecified. Cannot interrupt.\n') |
|
431 | 'unspecified. Cannot interrupt.\n') | |
432 |
|
432 | |||
433 | def reset(self): |
|
433 | def reset(self): | |
434 | """ Resets the widget to its initial state. Similar to ``clear``, but |
|
434 | """ Resets the widget to its initial state. Similar to ``clear``, but | |
435 | also re-writes the banner and aborts execution if necessary. |
|
435 | also re-writes the banner and aborts execution if necessary. | |
436 | """ |
|
436 | """ | |
437 | if self._executing: |
|
437 | if self._executing: | |
438 | self._executing = False |
|
438 | self._executing = False | |
439 | self._request_info['execute'] = None |
|
439 | self._request_info['execute'] = None | |
440 | self._reading = False |
|
440 | self._reading = False | |
441 | self._highlighter.highlighting_on = False |
|
441 | self._highlighter.highlighting_on = False | |
442 |
|
442 | |||
443 | self._control.clear() |
|
443 | self._control.clear() | |
444 | self._append_plain_text(self._get_banner()) |
|
444 | self._append_plain_text(self._get_banner()) | |
445 | self._show_interpreter_prompt() |
|
445 | self._show_interpreter_prompt() | |
446 |
|
446 | |||
447 | def restart_kernel(self, message, now=False): |
|
447 | def restart_kernel(self, message, now=False): | |
448 | """ Attempts to restart the running kernel. |
|
448 | """ Attempts to restart the running kernel. | |
449 | """ |
|
449 | """ | |
450 | # FIXME: now should be configurable via a checkbox in the dialog. Right |
|
450 | # FIXME: now should be configurable via a checkbox in the dialog. Right | |
451 | # now at least the heartbeat path sets it to True and the manual restart |
|
451 | # now at least the heartbeat path sets it to True and the manual restart | |
452 | # to False. But those should just be the pre-selected states of a |
|
452 | # to False. But those should just be the pre-selected states of a | |
453 | # checkbox that the user could override if so desired. But I don't know |
|
453 | # checkbox that the user could override if so desired. But I don't know | |
454 | # enough Qt to go implementing the checkbox now. |
|
454 | # enough Qt to go implementing the checkbox now. | |
455 |
|
455 | |||
456 | if self.custom_restart: |
|
456 | if self.custom_restart: | |
457 | self.custom_restart_requested.emit() |
|
457 | self.custom_restart_requested.emit() | |
458 |
|
458 | |||
459 | elif self.kernel_manager.has_kernel: |
|
459 | elif self.kernel_manager.has_kernel: | |
460 | # Pause the heart beat channel to prevent further warnings. |
|
460 | # Pause the heart beat channel to prevent further warnings. | |
461 | self.kernel_manager.hb_channel.pause() |
|
461 | self.kernel_manager.hb_channel.pause() | |
462 |
|
462 | |||
463 | # Prompt the user to restart the kernel. Un-pause the heartbeat if |
|
463 | # Prompt the user to restart the kernel. Un-pause the heartbeat if | |
464 | # they decline. (If they accept, the heartbeat will be un-paused |
|
464 | # they decline. (If they accept, the heartbeat will be un-paused | |
465 | # automatically when the kernel is restarted.) |
|
465 | # automatically when the kernel is restarted.) | |
466 | buttons = QtGui.QMessageBox.Yes | QtGui.QMessageBox.No |
|
466 | buttons = QtGui.QMessageBox.Yes | QtGui.QMessageBox.No | |
467 | result = QtGui.QMessageBox.question(self, 'Restart kernel?', |
|
467 | result = QtGui.QMessageBox.question(self, 'Restart kernel?', | |
468 | message, buttons) |
|
468 | message, buttons) | |
469 | if result == QtGui.QMessageBox.Yes: |
|
469 | if result == QtGui.QMessageBox.Yes: | |
470 | try: |
|
470 | try: | |
471 | self.kernel_manager.restart_kernel(now=now) |
|
471 | self.kernel_manager.restart_kernel(now=now) | |
472 | except RuntimeError: |
|
472 | except RuntimeError: | |
473 | self._append_plain_text('Kernel started externally. ' |
|
473 | self._append_plain_text('Kernel started externally. ' | |
474 | 'Cannot restart.\n') |
|
474 | 'Cannot restart.\n') | |
475 | else: |
|
475 | else: | |
476 | self.reset() |
|
476 | self.reset() | |
477 | else: |
|
477 | else: | |
478 | self.kernel_manager.hb_channel.unpause() |
|
478 | self.kernel_manager.hb_channel.unpause() | |
479 |
|
479 | |||
480 | else: |
|
480 | else: | |
481 | self._append_plain_text('Kernel process is either remote or ' |
|
481 | self._append_plain_text('Kernel process is either remote or ' | |
482 | 'unspecified. Cannot restart.\n') |
|
482 | 'unspecified. Cannot restart.\n') | |
483 |
|
483 | |||
484 | #--------------------------------------------------------------------------- |
|
484 | #--------------------------------------------------------------------------- | |
485 | # 'FrontendWidget' protected interface |
|
485 | # 'FrontendWidget' protected interface | |
486 | #--------------------------------------------------------------------------- |
|
486 | #--------------------------------------------------------------------------- | |
487 |
|
487 | |||
488 | def _call_tip(self): |
|
488 | def _call_tip(self): | |
489 | """ Shows a call tip, if appropriate, at the current cursor location. |
|
489 | """ Shows a call tip, if appropriate, at the current cursor location. | |
490 | """ |
|
490 | """ | |
491 | # Decide if it makes sense to show a call tip |
|
491 | # Decide if it makes sense to show a call tip | |
492 | cursor = self._get_cursor() |
|
492 | cursor = self._get_cursor() | |
493 | cursor.movePosition(QtGui.QTextCursor.Left) |
|
493 | cursor.movePosition(QtGui.QTextCursor.Left) | |
494 | if cursor.document().characterAt(cursor.position()).toAscii() != '(': |
|
494 | if cursor.document().characterAt(cursor.position()).toAscii() != '(': | |
495 | return False |
|
495 | return False | |
496 | context = self._get_context(cursor) |
|
496 | context = self._get_context(cursor) | |
497 | if not context: |
|
497 | if not context: | |
498 | return False |
|
498 | return False | |
499 |
|
499 | |||
500 | # Send the metadata request to the kernel |
|
500 | # Send the metadata request to the kernel | |
501 | name = '.'.join(context) |
|
501 | name = '.'.join(context) | |
502 | msg_id = self.kernel_manager.xreq_channel.object_info(name) |
|
502 | msg_id = self.kernel_manager.xreq_channel.object_info(name) | |
503 | pos = self._get_cursor().position() |
|
503 | pos = self._get_cursor().position() | |
504 | self._request_info['call_tip'] = self._CallTipRequest(msg_id, pos) |
|
504 | self._request_info['call_tip'] = self._CallTipRequest(msg_id, pos) | |
505 | return True |
|
505 | return True | |
506 |
|
506 | |||
507 | def _complete(self): |
|
507 | def _complete(self): | |
508 | """ Performs completion at the current cursor location. |
|
508 | """ Performs completion at the current cursor location. | |
509 | """ |
|
509 | """ | |
510 | context = self._get_context() |
|
510 | context = self._get_context() | |
511 | if context: |
|
511 | if context: | |
512 | # Send the completion request to the kernel |
|
512 | # Send the completion request to the kernel | |
513 | msg_id = self.kernel_manager.xreq_channel.complete( |
|
513 | msg_id = self.kernel_manager.xreq_channel.complete( | |
514 | '.'.join(context), # text |
|
514 | '.'.join(context), # text | |
515 | self._get_input_buffer_cursor_line(), # line |
|
515 | self._get_input_buffer_cursor_line(), # line | |
516 | self._get_input_buffer_cursor_column(), # cursor_pos |
|
516 | self._get_input_buffer_cursor_column(), # cursor_pos | |
517 | self.input_buffer) # block |
|
517 | self.input_buffer) # block | |
518 | pos = self._get_cursor().position() |
|
518 | pos = self._get_cursor().position() | |
519 | info = self._CompletionRequest(msg_id, pos) |
|
519 | info = self._CompletionRequest(msg_id, pos) | |
520 | self._request_info['complete'] = info |
|
520 | self._request_info['complete'] = info | |
521 |
|
521 | |||
522 | def _get_banner(self): |
|
522 | def _get_banner(self): | |
523 | """ Gets a banner to display at the beginning of a session. |
|
523 | """ Gets a banner to display at the beginning of a session. | |
524 | """ |
|
524 | """ | |
525 | banner = 'Python %s on %s\nType "help", "copyright", "credits" or ' \ |
|
525 | banner = 'Python %s on %s\nType "help", "copyright", "credits" or ' \ | |
526 | '"license" for more information.' |
|
526 | '"license" for more information.' | |
527 | return banner % (sys.version, sys.platform) |
|
527 | return banner % (sys.version, sys.platform) | |
528 |
|
528 | |||
529 | def _get_context(self, cursor=None): |
|
529 | def _get_context(self, cursor=None): | |
530 | """ Gets the context for the specified cursor (or the current cursor |
|
530 | """ Gets the context for the specified cursor (or the current cursor | |
531 | if none is specified). |
|
531 | if none is specified). | |
532 | """ |
|
532 | """ | |
533 | if cursor is None: |
|
533 | if cursor is None: | |
534 | cursor = self._get_cursor() |
|
534 | cursor = self._get_cursor() | |
535 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, |
|
535 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, | |
536 | QtGui.QTextCursor.KeepAnchor) |
|
536 | QtGui.QTextCursor.KeepAnchor) | |
537 | text = unicode(cursor.selection().toPlainText()) |
|
537 | text = unicode(cursor.selection().toPlainText()) | |
538 | return self._completion_lexer.get_context(text) |
|
538 | return self._completion_lexer.get_context(text) | |
539 |
|
539 | |||
540 | def _process_execute_abort(self, msg): |
|
540 | def _process_execute_abort(self, msg): | |
541 | """ Process a reply for an aborted execution request. |
|
541 | """ Process a reply for an aborted execution request. | |
542 | """ |
|
542 | """ | |
543 | self._append_plain_text("ERROR: execution aborted\n") |
|
543 | self._append_plain_text("ERROR: execution aborted\n") | |
544 |
|
544 | |||
545 | def _process_execute_error(self, msg): |
|
545 | def _process_execute_error(self, msg): | |
546 | """ Process a reply for an execution request that resulted in an error. |
|
546 | """ Process a reply for an execution request that resulted in an error. | |
547 | """ |
|
547 | """ | |
548 | content = msg['content'] |
|
548 | content = msg['content'] | |
549 | traceback = ''.join(content['traceback']) |
|
549 | traceback = ''.join(content['traceback']) | |
550 | self._append_plain_text(traceback) |
|
550 | self._append_plain_text(traceback) | |
551 |
|
551 | |||
552 | def _process_execute_ok(self, msg): |
|
552 | def _process_execute_ok(self, msg): | |
553 | """ Process a reply for a successful execution equest. |
|
553 | """ Process a reply for a successful execution equest. | |
554 | """ |
|
554 | """ | |
555 | payload = msg['content']['payload'] |
|
555 | payload = msg['content']['payload'] | |
556 | for item in payload: |
|
556 | for item in payload: | |
557 | if not self._process_execute_payload(item): |
|
557 | if not self._process_execute_payload(item): | |
558 | warning = 'Warning: received unknown payload of type %s' |
|
558 | warning = 'Warning: received unknown payload of type %s' | |
559 | print(warning % repr(item['source'])) |
|
559 | print(warning % repr(item['source'])) | |
560 |
|
560 | |||
561 | def _process_execute_payload(self, item): |
|
561 | def _process_execute_payload(self, item): | |
562 | """ Process a single payload item from the list of payload items in an |
|
562 | """ Process a single payload item from the list of payload items in an | |
563 | execution reply. Returns whether the payload was handled. |
|
563 | execution reply. Returns whether the payload was handled. | |
564 | """ |
|
564 | """ | |
565 | # The basic FrontendWidget doesn't handle payloads, as they are a |
|
565 | # The basic FrontendWidget doesn't handle payloads, as they are a | |
566 | # mechanism for going beyond the standard Python interpreter model. |
|
566 | # mechanism for going beyond the standard Python interpreter model. | |
567 | return False |
|
567 | return False | |
568 |
|
568 | |||
569 | def _show_interpreter_prompt(self): |
|
569 | def _show_interpreter_prompt(self): | |
570 | """ Shows a prompt for the interpreter. |
|
570 | """ Shows a prompt for the interpreter. | |
571 | """ |
|
571 | """ | |
572 | self._show_prompt('>>> ') |
|
572 | self._show_prompt('>>> ') | |
573 |
|
573 | |||
574 | def _show_interpreter_prompt_for_reply(self, msg): |
|
574 | def _show_interpreter_prompt_for_reply(self, msg): | |
575 | """ Shows a prompt for the interpreter given an 'execute_reply' message. |
|
575 | """ Shows a prompt for the interpreter given an 'execute_reply' message. | |
576 | """ |
|
576 | """ | |
577 | self._show_interpreter_prompt() |
|
577 | self._show_interpreter_prompt() | |
578 |
|
578 | |||
579 | #------ Signal handlers ---------------------------------------------------- |
|
579 | #------ Signal handlers ---------------------------------------------------- | |
580 |
|
580 | |||
581 | def _document_contents_change(self, position, removed, added): |
|
581 | def _document_contents_change(self, position, removed, added): | |
582 | """ Called whenever the document's content changes. Display a call tip |
|
582 | """ Called whenever the document's content changes. Display a call tip | |
583 | if appropriate. |
|
583 | if appropriate. | |
584 | """ |
|
584 | """ | |
585 | # Calculate where the cursor should be *after* the change: |
|
585 | # Calculate where the cursor should be *after* the change: | |
586 | position += added |
|
586 | position += added | |
587 |
|
587 | |||
588 | document = self._control.document() |
|
588 | document = self._control.document() | |
589 | if position == self._get_cursor().position(): |
|
589 | if position == self._get_cursor().position(): | |
590 | self._call_tip() |
|
590 | self._call_tip() |
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