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@@ -1,638 +1,638 b'' | |||
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1 | 1 | from __future__ import print_function |
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2 | 2 | |
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3 | 3 | # Standard library imports |
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4 | 4 | from collections import namedtuple |
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5 | 5 | import sys |
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6 | 6 | import time |
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7 | 7 | |
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8 | 8 | # System library imports |
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9 | 9 | from pygments.lexers import PythonLexer |
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10 | 10 | from IPython.external.qt import QtCore, QtGui |
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11 | 11 | |
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12 | 12 | # Local imports |
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13 | 13 | from IPython.core.inputsplitter import InputSplitter, transform_classic_prompt |
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14 | 14 | from IPython.core.oinspect import call_tip |
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15 | 15 | from IPython.frontend.qt.base_frontend_mixin import BaseFrontendMixin |
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16 | 16 | from IPython.utils.traitlets import Bool, Instance, Unicode |
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17 | 17 | from bracket_matcher import BracketMatcher |
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18 | 18 | from call_tip_widget import CallTipWidget |
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19 | 19 | from completion_lexer import CompletionLexer |
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20 | 20 | from history_console_widget import HistoryConsoleWidget |
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21 | 21 | from pygments_highlighter import PygmentsHighlighter |
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22 | 22 | |
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23 | 23 | |
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24 | 24 | class FrontendHighlighter(PygmentsHighlighter): |
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25 | 25 | """ A PygmentsHighlighter that understands and ignores prompts. |
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26 | 26 | """ |
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27 | 27 | |
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28 | 28 | def __init__(self, frontend): |
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29 | 29 | super(FrontendHighlighter, self).__init__(frontend._control.document()) |
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30 | 30 | self._current_offset = 0 |
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31 | 31 | self._frontend = frontend |
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32 | 32 | self.highlighting_on = False |
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33 | 33 | |
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34 | 34 | def highlightBlock(self, string): |
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35 | 35 | """ Highlight a block of text. Reimplemented to highlight selectively. |
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36 | 36 | """ |
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37 | 37 | if not self.highlighting_on: |
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38 | 38 | return |
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39 | 39 | |
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40 | 40 | # The input to this function is a unicode string that may contain |
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41 | 41 | # paragraph break characters, non-breaking spaces, etc. Here we acquire |
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42 | 42 | # the string as plain text so we can compare it. |
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43 | 43 | current_block = self.currentBlock() |
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44 | 44 | string = self._frontend._get_block_plain_text(current_block) |
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45 | 45 | |
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46 | 46 | # Decide whether to check for the regular or continuation prompt. |
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47 | 47 | if current_block.contains(self._frontend._prompt_pos): |
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48 | 48 | prompt = self._frontend._prompt |
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49 | 49 | else: |
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50 | 50 | prompt = self._frontend._continuation_prompt |
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51 | 51 | |
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52 | 52 | # Only highlight if we can identify a prompt, but make sure not to |
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53 | 53 | # highlight the prompt. |
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54 | 54 | if string.startswith(prompt): |
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55 | 55 | self._current_offset = len(prompt) |
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56 | 56 | string = string[len(prompt):] |
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57 | 57 | super(FrontendHighlighter, self).highlightBlock(string) |
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58 | 58 | |
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59 | 59 | def rehighlightBlock(self, block): |
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60 | 60 | """ Reimplemented to temporarily enable highlighting if disabled. |
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61 | 61 | """ |
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62 | 62 | old = self.highlighting_on |
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63 | 63 | self.highlighting_on = True |
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64 | 64 | super(FrontendHighlighter, self).rehighlightBlock(block) |
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65 | 65 | self.highlighting_on = old |
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66 | 66 | |
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67 | 67 | def setFormat(self, start, count, format): |
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68 | 68 | """ Reimplemented to highlight selectively. |
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69 | 69 | """ |
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70 | 70 | start += self._current_offset |
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71 | 71 | super(FrontendHighlighter, self).setFormat(start, count, format) |
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72 | 72 | |
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73 | 73 | |
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74 | 74 | class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin): |
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75 | 75 | """ A Qt frontend for a generic Python kernel. |
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76 | 76 | """ |
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77 | 77 | |
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78 | 78 | # The text to show when the kernel is (re)started. |
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79 | 79 | banner = Unicode() |
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80 | 80 | |
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81 | 81 | # An option and corresponding signal for overriding the default kernel |
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82 | 82 | # interrupt behavior. |
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83 | 83 | custom_interrupt = Bool(False) |
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84 | 84 | custom_interrupt_requested = QtCore.Signal() |
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85 | 85 | |
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86 | 86 | # An option and corresponding signals for overriding the default kernel |
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87 | 87 | # restart behavior. |
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88 | 88 | custom_restart = Bool(False) |
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89 | 89 | custom_restart_kernel_died = QtCore.Signal(float) |
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90 | 90 | custom_restart_requested = QtCore.Signal() |
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91 | 91 | |
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92 | 92 | # Whether to automatically show calltips on open-parentheses. |
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93 | 93 | enable_calltips = Bool(True, config=True, |
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94 | 94 | help="Whether to draw information calltips on open-parentheses.") |
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95 | 95 | |
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96 | 96 | # Emitted when a user visible 'execute_request' has been submitted to the |
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97 | 97 | # kernel from the FrontendWidget. Contains the code to be executed. |
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98 | 98 | executing = QtCore.Signal(object) |
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99 | 99 | |
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100 | 100 | # Emitted when a user-visible 'execute_reply' has been received from the |
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101 | 101 | # kernel and processed by the FrontendWidget. Contains the response message. |
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102 | 102 | executed = QtCore.Signal(object) |
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103 | 103 | |
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104 | 104 | # Emitted when an exit request has been received from the kernel. |
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105 | exit_requested = QtCore.Signal() | |
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105 | exit_requested = QtCore.Signal(object) | |
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106 | 106 | |
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107 | 107 | # Protected class variables. |
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108 | 108 | _CallTipRequest = namedtuple('_CallTipRequest', ['id', 'pos']) |
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109 | 109 | _CompletionRequest = namedtuple('_CompletionRequest', ['id', 'pos']) |
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110 | 110 | _ExecutionRequest = namedtuple('_ExecutionRequest', ['id', 'kind']) |
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111 | 111 | _input_splitter_class = InputSplitter |
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112 | 112 | _local_kernel = False |
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113 | 113 | _highlighter = Instance(FrontendHighlighter) |
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114 | 114 | |
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115 | 115 | #--------------------------------------------------------------------------- |
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116 | 116 | # 'object' interface |
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117 | 117 | #--------------------------------------------------------------------------- |
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118 | 118 | |
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119 | 119 | def __init__(self, *args, **kw): |
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120 | 120 | super(FrontendWidget, self).__init__(*args, **kw) |
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121 | 121 | |
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122 | 122 | # FrontendWidget protected variables. |
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123 | 123 | self._bracket_matcher = BracketMatcher(self._control) |
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124 | 124 | self._call_tip_widget = CallTipWidget(self._control) |
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125 | 125 | self._completion_lexer = CompletionLexer(PythonLexer()) |
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126 | 126 | self._copy_raw_action = QtGui.QAction('Copy (Raw Text)', None) |
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127 | 127 | self._hidden = False |
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128 | 128 | self._highlighter = FrontendHighlighter(self) |
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129 | 129 | self._input_splitter = self._input_splitter_class(input_mode='cell') |
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130 | 130 | self._kernel_manager = None |
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131 | 131 | self._request_info = {} |
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132 | 132 | |
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133 | 133 | # Configure the ConsoleWidget. |
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134 | 134 | self.tab_width = 4 |
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135 | 135 | self._set_continuation_prompt('... ') |
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136 | 136 | |
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137 | 137 | # Configure the CallTipWidget. |
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138 | 138 | self._call_tip_widget.setFont(self.font) |
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139 | 139 | self.font_changed.connect(self._call_tip_widget.setFont) |
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140 | 140 | |
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141 | 141 | # Configure actions. |
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142 | 142 | action = self._copy_raw_action |
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143 | 143 | key = QtCore.Qt.CTRL | QtCore.Qt.SHIFT | QtCore.Qt.Key_C |
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144 | 144 | action.setEnabled(False) |
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145 | 145 | action.setShortcut(QtGui.QKeySequence(key)) |
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146 | 146 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) |
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147 | 147 | action.triggered.connect(self.copy_raw) |
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148 | 148 | self.copy_available.connect(action.setEnabled) |
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149 | 149 | self.addAction(action) |
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150 | 150 | |
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151 | 151 | # Connect signal handlers. |
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152 | 152 | document = self._control.document() |
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153 | 153 | document.contentsChange.connect(self._document_contents_change) |
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154 | 154 | |
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155 | 155 | # Set flag for whether we are connected via localhost. |
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156 | 156 | self._local_kernel = kw.get('local_kernel', |
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157 | 157 | FrontendWidget._local_kernel) |
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158 | 158 | |
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159 | 159 | #--------------------------------------------------------------------------- |
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160 | 160 | # 'ConsoleWidget' public interface |
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161 | 161 | #--------------------------------------------------------------------------- |
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162 | 162 | |
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163 | 163 | def copy(self): |
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164 | 164 | """ Copy the currently selected text to the clipboard, removing prompts. |
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165 | 165 | """ |
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166 | 166 | text = self._control.textCursor().selection().toPlainText() |
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167 | 167 | if text: |
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168 | 168 | lines = map(transform_classic_prompt, text.splitlines()) |
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169 | 169 | text = '\n'.join(lines) |
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170 | 170 | QtGui.QApplication.clipboard().setText(text) |
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171 | 171 | |
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172 | 172 | #--------------------------------------------------------------------------- |
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173 | 173 | # 'ConsoleWidget' abstract interface |
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174 | 174 | #--------------------------------------------------------------------------- |
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175 | 175 | |
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176 | 176 | def _is_complete(self, source, interactive): |
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177 | 177 | """ Returns whether 'source' can be completely processed and a new |
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178 | 178 | prompt created. When triggered by an Enter/Return key press, |
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179 | 179 | 'interactive' is True; otherwise, it is False. |
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180 | 180 | """ |
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181 | 181 | complete = self._input_splitter.push(source) |
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182 | 182 | if interactive: |
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183 | 183 | complete = not self._input_splitter.push_accepts_more() |
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184 | 184 | return complete |
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185 | 185 | |
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186 | 186 | def _execute(self, source, hidden): |
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187 | 187 | """ Execute 'source'. If 'hidden', do not show any output. |
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188 | 188 | |
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189 | 189 | See parent class :meth:`execute` docstring for full details. |
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190 | 190 | """ |
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191 | 191 | msg_id = self.kernel_manager.shell_channel.execute(source, hidden) |
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192 | 192 | self._request_info['execute'] = self._ExecutionRequest(msg_id, 'user') |
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193 | 193 | self._hidden = hidden |
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194 | 194 | if not hidden: |
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195 | 195 | self.executing.emit(source) |
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196 | 196 | |
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197 | 197 | def _prompt_started_hook(self): |
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198 | 198 | """ Called immediately after a new prompt is displayed. |
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199 | 199 | """ |
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200 | 200 | if not self._reading: |
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201 | 201 | self._highlighter.highlighting_on = True |
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202 | 202 | |
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203 | 203 | def _prompt_finished_hook(self): |
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204 | 204 | """ Called immediately after a prompt is finished, i.e. when some input |
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205 | 205 | will be processed and a new prompt displayed. |
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206 | 206 | """ |
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207 | 207 | # Flush all state from the input splitter so the next round of |
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208 | 208 | # reading input starts with a clean buffer. |
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209 | 209 | self._input_splitter.reset() |
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210 | 210 | |
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211 | 211 | if not self._reading: |
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212 | 212 | self._highlighter.highlighting_on = False |
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213 | 213 | |
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214 | 214 | def _tab_pressed(self): |
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215 | 215 | """ Called when the tab key is pressed. Returns whether to continue |
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216 | 216 | processing the event. |
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217 | 217 | """ |
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218 | 218 | # Perform tab completion if: |
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219 | 219 | # 1) The cursor is in the input buffer. |
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220 | 220 | # 2) There is a non-whitespace character before the cursor. |
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221 | 221 | text = self._get_input_buffer_cursor_line() |
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222 | 222 | if text is None: |
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223 | 223 | return False |
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224 | 224 | complete = bool(text[:self._get_input_buffer_cursor_column()].strip()) |
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225 | 225 | if complete: |
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226 | 226 | self._complete() |
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227 | 227 | return not complete |
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228 | 228 | |
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229 | 229 | #--------------------------------------------------------------------------- |
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230 | 230 | # 'ConsoleWidget' protected interface |
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231 | 231 | #--------------------------------------------------------------------------- |
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232 | 232 | |
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233 | 233 | def _context_menu_make(self, pos): |
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234 | 234 | """ Reimplemented to add an action for raw copy. |
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235 | 235 | """ |
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236 | 236 | menu = super(FrontendWidget, self)._context_menu_make(pos) |
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237 | 237 | for before_action in menu.actions(): |
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238 | 238 | if before_action.shortcut().matches(QtGui.QKeySequence.Paste) == \ |
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239 | 239 | QtGui.QKeySequence.ExactMatch: |
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240 | 240 | menu.insertAction(before_action, self._copy_raw_action) |
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241 | 241 | break |
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242 | 242 | return menu |
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243 | 243 | |
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244 | 244 | def _event_filter_console_keypress(self, event): |
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245 | 245 | """ Reimplemented for execution interruption and smart backspace. |
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246 | 246 | """ |
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247 | 247 | key = event.key() |
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248 | 248 | if self._control_key_down(event.modifiers(), include_command=False): |
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249 | 249 | |
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250 | 250 | if key == QtCore.Qt.Key_C and self._executing: |
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251 | 251 | self.interrupt_kernel() |
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252 | 252 | return True |
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253 | 253 | |
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254 | 254 | elif key == QtCore.Qt.Key_Period: |
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255 | 255 | message = 'Are you sure you want to restart the kernel?' |
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256 | 256 | self.restart_kernel(message, now=False) |
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257 | 257 | return True |
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258 | 258 | |
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259 | 259 | elif not event.modifiers() & QtCore.Qt.AltModifier: |
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260 | 260 | |
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261 | 261 | # Smart backspace: remove four characters in one backspace if: |
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262 | 262 | # 1) everything left of the cursor is whitespace |
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263 | 263 | # 2) the four characters immediately left of the cursor are spaces |
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264 | 264 | if key == QtCore.Qt.Key_Backspace: |
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265 | 265 | col = self._get_input_buffer_cursor_column() |
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266 | 266 | cursor = self._control.textCursor() |
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267 | 267 | if col > 3 and not cursor.hasSelection(): |
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268 | 268 | text = self._get_input_buffer_cursor_line()[:col] |
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269 | 269 | if text.endswith(' ') and not text.strip(): |
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270 | 270 | cursor.movePosition(QtGui.QTextCursor.Left, |
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271 | 271 | QtGui.QTextCursor.KeepAnchor, 4) |
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272 | 272 | cursor.removeSelectedText() |
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273 | 273 | return True |
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274 | 274 | |
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275 | 275 | return super(FrontendWidget, self)._event_filter_console_keypress(event) |
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276 | 276 | |
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277 | 277 | def _insert_continuation_prompt(self, cursor): |
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278 | 278 | """ Reimplemented for auto-indentation. |
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279 | 279 | """ |
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280 | 280 | super(FrontendWidget, self)._insert_continuation_prompt(cursor) |
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281 | 281 | cursor.insertText(' ' * self._input_splitter.indent_spaces) |
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282 | 282 | |
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283 | 283 | #--------------------------------------------------------------------------- |
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284 | 284 | # 'BaseFrontendMixin' abstract interface |
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285 | 285 | #--------------------------------------------------------------------------- |
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286 | 286 | |
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287 | 287 | def _handle_complete_reply(self, rep): |
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288 | 288 | """ Handle replies for tab completion. |
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289 | 289 | """ |
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290 | 290 | self.log.debug("complete: %s", rep.get('content', '')) |
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291 | 291 | cursor = self._get_cursor() |
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292 | 292 | info = self._request_info.get('complete') |
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293 | 293 | if info and info.id == rep['parent_header']['msg_id'] and \ |
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294 | 294 | info.pos == cursor.position(): |
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295 | 295 | text = '.'.join(self._get_context()) |
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296 | 296 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(text)) |
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297 | 297 | self._complete_with_items(cursor, rep['content']['matches']) |
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298 | 298 | |
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299 | 299 | def _handle_execute_reply(self, msg): |
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300 | 300 | """ Handles replies for code execution. |
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301 | 301 | """ |
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302 | 302 | self.log.debug("execute: %s", msg.get('content', '')) |
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303 | 303 | info = self._request_info.get('execute') |
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304 | 304 | if info and info.id == msg['parent_header']['msg_id'] and \ |
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305 | 305 | info.kind == 'user' and not self._hidden: |
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306 | 306 | # Make sure that all output from the SUB channel has been processed |
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307 | 307 | # before writing a new prompt. |
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308 | 308 | self.kernel_manager.sub_channel.flush() |
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309 | 309 | |
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310 | 310 | # Reset the ANSI style information to prevent bad text in stdout |
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311 | 311 | # from messing up our colors. We're not a true terminal so we're |
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312 | 312 | # allowed to do this. |
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313 | 313 | if self.ansi_codes: |
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314 | 314 | self._ansi_processor.reset_sgr() |
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315 | 315 | |
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316 | 316 | content = msg['content'] |
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317 | 317 | status = content['status'] |
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318 | 318 | if status == 'ok': |
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319 | 319 | self._process_execute_ok(msg) |
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320 | 320 | elif status == 'error': |
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321 | 321 | self._process_execute_error(msg) |
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322 | 322 | elif status == 'abort': |
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323 | 323 | self._process_execute_abort(msg) |
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324 | 324 | |
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325 | 325 | self._show_interpreter_prompt_for_reply(msg) |
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326 | 326 | self.executed.emit(msg) |
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327 | 327 | else: |
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328 | 328 | super(FrontendWidget, self)._handle_execute_reply(msg) |
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329 | 329 | |
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330 | 330 | def _handle_input_request(self, msg): |
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331 | 331 | """ Handle requests for raw_input. |
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332 | 332 | """ |
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333 | 333 | self.log.debug("input: %s", msg.get('content', '')) |
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334 | 334 | if self._hidden: |
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335 | 335 | raise RuntimeError('Request for raw input during hidden execution.') |
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336 | 336 | |
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337 | 337 | # Make sure that all output from the SUB channel has been processed |
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338 | 338 | # before entering readline mode. |
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339 | 339 | self.kernel_manager.sub_channel.flush() |
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340 | 340 | |
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341 | 341 | def callback(line): |
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342 | 342 | self.kernel_manager.stdin_channel.input(line) |
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343 | 343 | self._readline(msg['content']['prompt'], callback=callback) |
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344 | 344 | |
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345 | 345 | def _handle_kernel_died(self, since_last_heartbeat): |
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346 | 346 | """ Handle the kernel's death by asking if the user wants to restart. |
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347 | 347 | """ |
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348 | 348 | self.log.debug("kernel died: %s", since_last_heartbeat) |
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349 | 349 | if self.custom_restart: |
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350 | 350 | self.custom_restart_kernel_died.emit(since_last_heartbeat) |
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351 | 351 | else: |
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352 | 352 | message = 'The kernel heartbeat has been inactive for %.2f ' \ |
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353 | 353 | 'seconds. Do you want to restart the kernel? You may ' \ |
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354 | 354 | 'first want to check the network connection.' % \ |
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355 | 355 | since_last_heartbeat |
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356 | 356 | self.restart_kernel(message, now=True) |
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357 | 357 | |
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358 | 358 | def _handle_object_info_reply(self, rep): |
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359 | 359 | """ Handle replies for call tips. |
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360 | 360 | """ |
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361 | 361 | self.log.debug("oinfo: %s", rep.get('content', '')) |
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362 | 362 | cursor = self._get_cursor() |
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363 | 363 | info = self._request_info.get('call_tip') |
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364 | 364 | if info and info.id == rep['parent_header']['msg_id'] and \ |
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365 | 365 | info.pos == cursor.position(): |
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366 | 366 | # Get the information for a call tip. For now we format the call |
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367 | 367 | # line as string, later we can pass False to format_call and |
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368 | 368 | # syntax-highlight it ourselves for nicer formatting in the |
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369 | 369 | # calltip. |
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370 | 370 | content = rep['content'] |
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371 | 371 | # if this is from pykernel, 'docstring' will be the only key |
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372 | 372 | if content.get('ismagic', False): |
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373 | 373 | # Don't generate a call-tip for magics. Ideally, we should |
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374 | 374 | # generate a tooltip, but not on ( like we do for actual |
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375 | 375 | # callables. |
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376 | 376 | call_info, doc = None, None |
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377 | 377 | else: |
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378 | 378 | call_info, doc = call_tip(content, format_call=True) |
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379 | 379 | if call_info or doc: |
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380 | 380 | self._call_tip_widget.show_call_info(call_info, doc) |
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381 | 381 | |
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382 | 382 | def _handle_pyout(self, msg): |
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383 | 383 | """ Handle display hook output. |
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384 | 384 | """ |
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385 | 385 | self.log.debug("pyout: %s", msg.get('content', '')) |
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386 | 386 | if not self._hidden and self._is_from_this_session(msg): |
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387 | 387 | text = msg['content']['data'] |
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388 | 388 | self._append_plain_text(text + '\n', before_prompt=True) |
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389 | 389 | |
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390 | 390 | def _handle_stream(self, msg): |
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391 | 391 | """ Handle stdout, stderr, and stdin. |
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392 | 392 | """ |
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393 | 393 | self.log.debug("stream: %s", msg.get('content', '')) |
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394 | 394 | if not self._hidden and self._is_from_this_session(msg): |
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395 | 395 | # Most consoles treat tabs as being 8 space characters. Convert tabs |
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396 | 396 | # to spaces so that output looks as expected regardless of this |
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397 | 397 | # widget's tab width. |
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398 | 398 | text = msg['content']['data'].expandtabs(8) |
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399 | 399 | |
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400 | 400 | self._append_plain_text(text, before_prompt=True) |
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401 | 401 | self._control.moveCursor(QtGui.QTextCursor.End) |
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402 | 402 | |
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403 | 403 | def _handle_shutdown_reply(self, msg): |
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404 | 404 | """ Handle shutdown signal, only if from other console. |
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405 | 405 | """ |
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406 | 406 | self.log.debug("shutdown: %s", msg.get('content', '')) |
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407 | 407 | if not self._hidden and not self._is_from_this_session(msg): |
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408 | 408 | if self._local_kernel: |
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409 | 409 | if not msg['content']['restart']: |
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410 | 410 | sys.exit(0) |
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411 | 411 | else: |
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412 | 412 | # we just got notified of a restart! |
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413 | 413 | time.sleep(0.25) # wait 1/4 sec to reset |
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414 | 414 | # lest the request for a new prompt |
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415 | 415 | # goes to the old kernel |
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416 | 416 | self.reset() |
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417 | 417 | else: # remote kernel, prompt on Kernel shutdown/reset |
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418 | 418 | title = self.window().windowTitle() |
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419 | 419 | if not msg['content']['restart']: |
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420 | 420 | reply = QtGui.QMessageBox.question(self, title, |
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421 | 421 | "Kernel has been shutdown permanently. " |
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422 | 422 | "Close the Console?", |
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423 | 423 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) |
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424 | 424 | if reply == QtGui.QMessageBox.Yes: |
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425 |
s |
|
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425 | self.exit_requested.emit(self) | |
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426 | 426 | else: |
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427 | 427 | reply = QtGui.QMessageBox.question(self, title, |
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428 | 428 | "Kernel has been reset. Clear the Console?", |
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429 | 429 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) |
|
430 | 430 | if reply == QtGui.QMessageBox.Yes: |
|
431 | 431 | time.sleep(0.25) # wait 1/4 sec to reset |
|
432 | 432 | # lest the request for a new prompt |
|
433 | 433 | # goes to the old kernel |
|
434 | 434 | self.reset() |
|
435 | 435 | |
|
436 | 436 | def _started_channels(self): |
|
437 | 437 | """ Called when the KernelManager channels have started listening or |
|
438 | 438 | when the frontend is assigned an already listening KernelManager. |
|
439 | 439 | """ |
|
440 | 440 | self.reset() |
|
441 | 441 | |
|
442 | 442 | #--------------------------------------------------------------------------- |
|
443 | 443 | # 'FrontendWidget' public interface |
|
444 | 444 | #--------------------------------------------------------------------------- |
|
445 | 445 | |
|
446 | 446 | def copy_raw(self): |
|
447 | 447 | """ Copy the currently selected text to the clipboard without attempting |
|
448 | 448 | to remove prompts or otherwise alter the text. |
|
449 | 449 | """ |
|
450 | 450 | self._control.copy() |
|
451 | 451 | |
|
452 | 452 | def execute_file(self, path, hidden=False): |
|
453 | 453 | """ Attempts to execute file with 'path'. If 'hidden', no output is |
|
454 | 454 | shown. |
|
455 | 455 | """ |
|
456 | 456 | self.execute('execfile(%r)' % path, hidden=hidden) |
|
457 | 457 | |
|
458 | 458 | def interrupt_kernel(self): |
|
459 | 459 | """ Attempts to interrupt the running kernel. |
|
460 | 460 | """ |
|
461 | 461 | if self.custom_interrupt: |
|
462 | 462 | self.custom_interrupt_requested.emit() |
|
463 | 463 | elif self.kernel_manager.has_kernel: |
|
464 | 464 | self.kernel_manager.interrupt_kernel() |
|
465 | 465 | else: |
|
466 | 466 | self._append_plain_text('Kernel process is either remote or ' |
|
467 | 467 | 'unspecified. Cannot interrupt.\n') |
|
468 | 468 | |
|
469 | 469 | def reset(self): |
|
470 | 470 | """ Resets the widget to its initial state. Similar to ``clear``, but |
|
471 | 471 | also re-writes the banner and aborts execution if necessary. |
|
472 | 472 | """ |
|
473 | 473 | if self._executing: |
|
474 | 474 | self._executing = False |
|
475 | 475 | self._request_info['execute'] = None |
|
476 | 476 | self._reading = False |
|
477 | 477 | self._highlighter.highlighting_on = False |
|
478 | 478 | |
|
479 | 479 | self._control.clear() |
|
480 | 480 | self._append_plain_text(self.banner) |
|
481 | 481 | self._show_interpreter_prompt() |
|
482 | 482 | |
|
483 | 483 | def restart_kernel(self, message, now=False): |
|
484 | 484 | """ Attempts to restart the running kernel. |
|
485 | 485 | """ |
|
486 | 486 | # FIXME: now should be configurable via a checkbox in the dialog. Right |
|
487 | 487 | # now at least the heartbeat path sets it to True and the manual restart |
|
488 | 488 | # to False. But those should just be the pre-selected states of a |
|
489 | 489 | # checkbox that the user could override if so desired. But I don't know |
|
490 | 490 | # enough Qt to go implementing the checkbox now. |
|
491 | 491 | |
|
492 | 492 | if self.custom_restart: |
|
493 | 493 | self.custom_restart_requested.emit() |
|
494 | 494 | |
|
495 | 495 | elif self.kernel_manager.has_kernel: |
|
496 | 496 | # Pause the heart beat channel to prevent further warnings. |
|
497 | 497 | self.kernel_manager.hb_channel.pause() |
|
498 | 498 | |
|
499 | 499 | # Prompt the user to restart the kernel. Un-pause the heartbeat if |
|
500 | 500 | # they decline. (If they accept, the heartbeat will be un-paused |
|
501 | 501 | # automatically when the kernel is restarted.) |
|
502 | 502 | buttons = QtGui.QMessageBox.Yes | QtGui.QMessageBox.No |
|
503 | 503 | result = QtGui.QMessageBox.question(self, 'Restart kernel?', |
|
504 | 504 | message, buttons) |
|
505 | 505 | if result == QtGui.QMessageBox.Yes: |
|
506 | 506 | try: |
|
507 | 507 | self.kernel_manager.restart_kernel(now=now) |
|
508 | 508 | except RuntimeError: |
|
509 | 509 | self._append_plain_text('Kernel started externally. ' |
|
510 | 510 | 'Cannot restart.\n') |
|
511 | 511 | else: |
|
512 | 512 | self.reset() |
|
513 | 513 | else: |
|
514 | 514 | self.kernel_manager.hb_channel.unpause() |
|
515 | 515 | |
|
516 | 516 | else: |
|
517 | 517 | self._append_plain_text('Kernel process is either remote or ' |
|
518 | 518 | 'unspecified. Cannot restart.\n') |
|
519 | 519 | |
|
520 | 520 | #--------------------------------------------------------------------------- |
|
521 | 521 | # 'FrontendWidget' protected interface |
|
522 | 522 | #--------------------------------------------------------------------------- |
|
523 | 523 | |
|
524 | 524 | def _call_tip(self): |
|
525 | 525 | """ Shows a call tip, if appropriate, at the current cursor location. |
|
526 | 526 | """ |
|
527 | 527 | # Decide if it makes sense to show a call tip |
|
528 | 528 | if not self.enable_calltips: |
|
529 | 529 | return False |
|
530 | 530 | cursor = self._get_cursor() |
|
531 | 531 | cursor.movePosition(QtGui.QTextCursor.Left) |
|
532 | 532 | if cursor.document().characterAt(cursor.position()) != '(': |
|
533 | 533 | return False |
|
534 | 534 | context = self._get_context(cursor) |
|
535 | 535 | if not context: |
|
536 | 536 | return False |
|
537 | 537 | |
|
538 | 538 | # Send the metadata request to the kernel |
|
539 | 539 | name = '.'.join(context) |
|
540 | 540 | msg_id = self.kernel_manager.shell_channel.object_info(name) |
|
541 | 541 | pos = self._get_cursor().position() |
|
542 | 542 | self._request_info['call_tip'] = self._CallTipRequest(msg_id, pos) |
|
543 | 543 | return True |
|
544 | 544 | |
|
545 | 545 | def _complete(self): |
|
546 | 546 | """ Performs completion at the current cursor location. |
|
547 | 547 | """ |
|
548 | 548 | context = self._get_context() |
|
549 | 549 | if context: |
|
550 | 550 | # Send the completion request to the kernel |
|
551 | 551 | msg_id = self.kernel_manager.shell_channel.complete( |
|
552 | 552 | '.'.join(context), # text |
|
553 | 553 | self._get_input_buffer_cursor_line(), # line |
|
554 | 554 | self._get_input_buffer_cursor_column(), # cursor_pos |
|
555 | 555 | self.input_buffer) # block |
|
556 | 556 | pos = self._get_cursor().position() |
|
557 | 557 | info = self._CompletionRequest(msg_id, pos) |
|
558 | 558 | self._request_info['complete'] = info |
|
559 | 559 | |
|
560 | 560 | def _get_context(self, cursor=None): |
|
561 | 561 | """ Gets the context for the specified cursor (or the current cursor |
|
562 | 562 | if none is specified). |
|
563 | 563 | """ |
|
564 | 564 | if cursor is None: |
|
565 | 565 | cursor = self._get_cursor() |
|
566 | 566 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, |
|
567 | 567 | QtGui.QTextCursor.KeepAnchor) |
|
568 | 568 | text = cursor.selection().toPlainText() |
|
569 | 569 | return self._completion_lexer.get_context(text) |
|
570 | 570 | |
|
571 | 571 | def _process_execute_abort(self, msg): |
|
572 | 572 | """ Process a reply for an aborted execution request. |
|
573 | 573 | """ |
|
574 | 574 | self._append_plain_text("ERROR: execution aborted\n") |
|
575 | 575 | |
|
576 | 576 | def _process_execute_error(self, msg): |
|
577 | 577 | """ Process a reply for an execution request that resulted in an error. |
|
578 | 578 | """ |
|
579 | 579 | content = msg['content'] |
|
580 | 580 | # If a SystemExit is passed along, this means exit() was called - also |
|
581 | 581 | # all the ipython %exit magic syntax of '-k' to be used to keep |
|
582 | 582 | # the kernel running |
|
583 | 583 | if content['ename']=='SystemExit': |
|
584 | 584 | keepkernel = content['evalue']=='-k' or content['evalue']=='True' |
|
585 | 585 | self._keep_kernel_on_exit = keepkernel |
|
586 | self.exit_requested.emit() | |
|
586 | self.exit_requested.emit(self) | |
|
587 | 587 | else: |
|
588 | 588 | traceback = ''.join(content['traceback']) |
|
589 | 589 | self._append_plain_text(traceback) |
|
590 | 590 | |
|
591 | 591 | def _process_execute_ok(self, msg): |
|
592 | 592 | """ Process a reply for a successful execution equest. |
|
593 | 593 | """ |
|
594 | 594 | payload = msg['content']['payload'] |
|
595 | 595 | for item in payload: |
|
596 | 596 | if not self._process_execute_payload(item): |
|
597 | 597 | warning = 'Warning: received unknown payload of type %s' |
|
598 | 598 | print(warning % repr(item['source'])) |
|
599 | 599 | |
|
600 | 600 | def _process_execute_payload(self, item): |
|
601 | 601 | """ Process a single payload item from the list of payload items in an |
|
602 | 602 | execution reply. Returns whether the payload was handled. |
|
603 | 603 | """ |
|
604 | 604 | # The basic FrontendWidget doesn't handle payloads, as they are a |
|
605 | 605 | # mechanism for going beyond the standard Python interpreter model. |
|
606 | 606 | return False |
|
607 | 607 | |
|
608 | 608 | def _show_interpreter_prompt(self): |
|
609 | 609 | """ Shows a prompt for the interpreter. |
|
610 | 610 | """ |
|
611 | 611 | self._show_prompt('>>> ') |
|
612 | 612 | |
|
613 | 613 | def _show_interpreter_prompt_for_reply(self, msg): |
|
614 | 614 | """ Shows a prompt for the interpreter given an 'execute_reply' message. |
|
615 | 615 | """ |
|
616 | 616 | self._show_interpreter_prompt() |
|
617 | 617 | |
|
618 | 618 | #------ Signal handlers ---------------------------------------------------- |
|
619 | 619 | |
|
620 | 620 | def _document_contents_change(self, position, removed, added): |
|
621 | 621 | """ Called whenever the document's content changes. Display a call tip |
|
622 | 622 | if appropriate. |
|
623 | 623 | """ |
|
624 | 624 | # Calculate where the cursor should be *after* the change: |
|
625 | 625 | position += added |
|
626 | 626 | |
|
627 | 627 | document = self._control.document() |
|
628 | 628 | if position == self._get_cursor().position(): |
|
629 | 629 | self._call_tip() |
|
630 | 630 | |
|
631 | 631 | #------ Trait default initializers ----------------------------------------- |
|
632 | 632 | |
|
633 | 633 | def _banner_default(self): |
|
634 | 634 | """ Returns the standard Python banner. |
|
635 | 635 | """ |
|
636 | 636 | banner = 'Python %s on %s\nType "help", "copyright", "credits" or ' \ |
|
637 | 637 | '"license" for more information.' |
|
638 | 638 | return banner % (sys.version, sys.platform) |
@@ -1,549 +1,549 b'' | |||
|
1 | 1 | """ A FrontendWidget that emulates the interface of the console IPython and |
|
2 | 2 | supports the additional functionality provided by the IPython kernel. |
|
3 | 3 | """ |
|
4 | 4 | |
|
5 | 5 | #----------------------------------------------------------------------------- |
|
6 | 6 | # Imports |
|
7 | 7 | #----------------------------------------------------------------------------- |
|
8 | 8 | |
|
9 | 9 | # Standard library imports |
|
10 | 10 | from collections import namedtuple |
|
11 | 11 | import os.path |
|
12 | 12 | import re |
|
13 | 13 | from subprocess import Popen |
|
14 | 14 | import sys |
|
15 | 15 | import time |
|
16 | 16 | from textwrap import dedent |
|
17 | 17 | |
|
18 | 18 | # System library imports |
|
19 | 19 | from IPython.external.qt import QtCore, QtGui |
|
20 | 20 | |
|
21 | 21 | # Local imports |
|
22 | 22 | from IPython.core.inputsplitter import IPythonInputSplitter, \ |
|
23 | 23 | transform_ipy_prompt |
|
24 | 24 | from IPython.utils.traitlets import Bool, Unicode |
|
25 | 25 | from frontend_widget import FrontendWidget |
|
26 | 26 | import styles |
|
27 | 27 | |
|
28 | 28 | #----------------------------------------------------------------------------- |
|
29 | 29 | # Constants |
|
30 | 30 | #----------------------------------------------------------------------------- |
|
31 | 31 | |
|
32 | 32 | # Default strings to build and display input and output prompts (and separators |
|
33 | 33 | # in between) |
|
34 | 34 | default_in_prompt = 'In [<span class="in-prompt-number">%i</span>]: ' |
|
35 | 35 | default_out_prompt = 'Out[<span class="out-prompt-number">%i</span>]: ' |
|
36 | 36 | default_input_sep = '\n' |
|
37 | 37 | default_output_sep = '' |
|
38 | 38 | default_output_sep2 = '' |
|
39 | 39 | |
|
40 | 40 | # Base path for most payload sources. |
|
41 | 41 | zmq_shell_source = 'IPython.zmq.zmqshell.ZMQInteractiveShell' |
|
42 | 42 | |
|
43 | 43 | if sys.platform.startswith('win'): |
|
44 | 44 | default_editor = 'notepad' |
|
45 | 45 | else: |
|
46 | 46 | default_editor = '' |
|
47 | 47 | |
|
48 | 48 | #----------------------------------------------------------------------------- |
|
49 | 49 | # IPythonWidget class |
|
50 | 50 | #----------------------------------------------------------------------------- |
|
51 | 51 | |
|
52 | 52 | class IPythonWidget(FrontendWidget): |
|
53 | 53 | """ A FrontendWidget for an IPython kernel. |
|
54 | 54 | """ |
|
55 | 55 | |
|
56 | 56 | # If set, the 'custom_edit_requested(str, int)' signal will be emitted when |
|
57 | 57 | # an editor is needed for a file. This overrides 'editor' and 'editor_line' |
|
58 | 58 | # settings. |
|
59 | 59 | custom_edit = Bool(False) |
|
60 | 60 | custom_edit_requested = QtCore.Signal(object, object) |
|
61 | 61 | |
|
62 | 62 | editor = Unicode(default_editor, config=True, |
|
63 | 63 | help=""" |
|
64 | 64 | A command for invoking a system text editor. If the string contains a |
|
65 | 65 | {filename} format specifier, it will be used. Otherwise, the filename |
|
66 | 66 | will be appended to the end the command. |
|
67 | 67 | """) |
|
68 | 68 | |
|
69 | 69 | editor_line = Unicode(config=True, |
|
70 | 70 | help=""" |
|
71 | 71 | The editor command to use when a specific line number is requested. The |
|
72 | 72 | string should contain two format specifiers: {line} and {filename}. If |
|
73 | 73 | this parameter is not specified, the line number option to the %edit |
|
74 | 74 | magic will be ignored. |
|
75 | 75 | """) |
|
76 | 76 | |
|
77 | 77 | style_sheet = Unicode(config=True, |
|
78 | 78 | help=""" |
|
79 | 79 | A CSS stylesheet. The stylesheet can contain classes for: |
|
80 | 80 | 1. Qt: QPlainTextEdit, QFrame, QWidget, etc |
|
81 | 81 | 2. Pygments: .c, .k, .o, etc. (see PygmentsHighlighter) |
|
82 | 82 | 3. IPython: .error, .in-prompt, .out-prompt, etc |
|
83 | 83 | """) |
|
84 | 84 | |
|
85 | 85 | syntax_style = Unicode(config=True, |
|
86 | 86 | help=""" |
|
87 | 87 | If not empty, use this Pygments style for syntax highlighting. |
|
88 | 88 | Otherwise, the style sheet is queried for Pygments style |
|
89 | 89 | information. |
|
90 | 90 | """) |
|
91 | 91 | |
|
92 | 92 | # Prompts. |
|
93 | 93 | in_prompt = Unicode(default_in_prompt, config=True) |
|
94 | 94 | out_prompt = Unicode(default_out_prompt, config=True) |
|
95 | 95 | input_sep = Unicode(default_input_sep, config=True) |
|
96 | 96 | output_sep = Unicode(default_output_sep, config=True) |
|
97 | 97 | output_sep2 = Unicode(default_output_sep2, config=True) |
|
98 | 98 | |
|
99 | 99 | # FrontendWidget protected class variables. |
|
100 | 100 | _input_splitter_class = IPythonInputSplitter |
|
101 | 101 | |
|
102 | 102 | # IPythonWidget protected class variables. |
|
103 | 103 | _PromptBlock = namedtuple('_PromptBlock', ['block', 'length', 'number']) |
|
104 | 104 | _payload_source_edit = zmq_shell_source + '.edit_magic' |
|
105 | 105 | _payload_source_exit = zmq_shell_source + '.ask_exit' |
|
106 | 106 | _payload_source_next_input = zmq_shell_source + '.set_next_input' |
|
107 | 107 | _payload_source_page = 'IPython.zmq.page.page' |
|
108 | 108 | _retrying_history_request = False |
|
109 | 109 | |
|
110 | 110 | #--------------------------------------------------------------------------- |
|
111 | 111 | # 'object' interface |
|
112 | 112 | #--------------------------------------------------------------------------- |
|
113 | 113 | |
|
114 | 114 | def __init__(self, *args, **kw): |
|
115 | 115 | super(IPythonWidget, self).__init__(*args, **kw) |
|
116 | 116 | |
|
117 | 117 | # IPythonWidget protected variables. |
|
118 | 118 | self._payload_handlers = { |
|
119 | 119 | self._payload_source_edit : self._handle_payload_edit, |
|
120 | 120 | self._payload_source_exit : self._handle_payload_exit, |
|
121 | 121 | self._payload_source_page : self._handle_payload_page, |
|
122 | 122 | self._payload_source_next_input : self._handle_payload_next_input } |
|
123 | 123 | self._previous_prompt_obj = None |
|
124 | 124 | self._keep_kernel_on_exit = None |
|
125 | 125 | |
|
126 | 126 | # Initialize widget styling. |
|
127 | 127 | if self.style_sheet: |
|
128 | 128 | self._style_sheet_changed() |
|
129 | 129 | self._syntax_style_changed() |
|
130 | 130 | else: |
|
131 | 131 | self.set_default_style() |
|
132 | 132 | |
|
133 | 133 | #--------------------------------------------------------------------------- |
|
134 | 134 | # 'BaseFrontendMixin' abstract interface |
|
135 | 135 | #--------------------------------------------------------------------------- |
|
136 | 136 | |
|
137 | 137 | def _handle_complete_reply(self, rep): |
|
138 | 138 | """ Reimplemented to support IPython's improved completion machinery. |
|
139 | 139 | """ |
|
140 | 140 | self.log.debug("complete: %s", rep.get('content', '')) |
|
141 | 141 | cursor = self._get_cursor() |
|
142 | 142 | info = self._request_info.get('complete') |
|
143 | 143 | if info and info.id == rep['parent_header']['msg_id'] and \ |
|
144 | 144 | info.pos == cursor.position(): |
|
145 | 145 | matches = rep['content']['matches'] |
|
146 | 146 | text = rep['content']['matched_text'] |
|
147 | 147 | offset = len(text) |
|
148 | 148 | |
|
149 | 149 | # Clean up matches with period and path separators if the matched |
|
150 | 150 | # text has not been transformed. This is done by truncating all |
|
151 | 151 | # but the last component and then suitably decreasing the offset |
|
152 | 152 | # between the current cursor position and the start of completion. |
|
153 | 153 | if len(matches) > 1 and matches[0][:offset] == text: |
|
154 | 154 | parts = re.split(r'[./\\]', text) |
|
155 | 155 | sep_count = len(parts) - 1 |
|
156 | 156 | if sep_count: |
|
157 | 157 | chop_length = sum(map(len, parts[:sep_count])) + sep_count |
|
158 | 158 | matches = [ match[chop_length:] for match in matches ] |
|
159 | 159 | offset -= chop_length |
|
160 | 160 | |
|
161 | 161 | # Move the cursor to the start of the match and complete. |
|
162 | 162 | cursor.movePosition(QtGui.QTextCursor.Left, n=offset) |
|
163 | 163 | self._complete_with_items(cursor, matches) |
|
164 | 164 | |
|
165 | 165 | def _handle_execute_reply(self, msg): |
|
166 | 166 | """ Reimplemented to support prompt requests. |
|
167 | 167 | """ |
|
168 | 168 | info = self._request_info.get('execute') |
|
169 | 169 | if info and info.id == msg['parent_header']['msg_id']: |
|
170 | 170 | if info.kind == 'prompt': |
|
171 | 171 | number = msg['content']['execution_count'] + 1 |
|
172 | 172 | self._show_interpreter_prompt(number) |
|
173 | 173 | else: |
|
174 | 174 | super(IPythonWidget, self)._handle_execute_reply(msg) |
|
175 | 175 | |
|
176 | 176 | def _handle_history_reply(self, msg): |
|
177 | 177 | """ Implemented to handle history tail replies, which are only supported |
|
178 | 178 | by the IPython kernel. |
|
179 | 179 | """ |
|
180 | 180 | self.log.debug("history: %s", msg.get('content', '')) |
|
181 | 181 | content = msg['content'] |
|
182 | 182 | if 'history' not in content: |
|
183 | 183 | self.log.error("History request failed: %r"%content) |
|
184 | 184 | if content.get('status', '') == 'aborted' and \ |
|
185 | 185 | not self._retrying_history_request: |
|
186 | 186 | # a *different* action caused this request to be aborted, so |
|
187 | 187 | # we should try again. |
|
188 | 188 | self.log.error("Retrying aborted history request") |
|
189 | 189 | # prevent multiple retries of aborted requests: |
|
190 | 190 | self._retrying_history_request = True |
|
191 | 191 | # wait out the kernel's queue flush, which is currently timed at 0.1s |
|
192 | 192 | time.sleep(0.25) |
|
193 | 193 | self.kernel_manager.shell_channel.history(hist_access_type='tail',n=1000) |
|
194 | 194 | else: |
|
195 | 195 | self._retrying_history_request = False |
|
196 | 196 | return |
|
197 | 197 | # reset retry flag |
|
198 | 198 | self._retrying_history_request = False |
|
199 | 199 | history_items = content['history'] |
|
200 | 200 | items = [ line.rstrip() for _, _, line in history_items ] |
|
201 | 201 | self._set_history(items) |
|
202 | 202 | |
|
203 | 203 | def _handle_pyout(self, msg): |
|
204 | 204 | """ Reimplemented for IPython-style "display hook". |
|
205 | 205 | """ |
|
206 | 206 | self.log.debug("pyout: %s", msg.get('content', '')) |
|
207 | 207 | if not self._hidden and self._is_from_this_session(msg): |
|
208 | 208 | content = msg['content'] |
|
209 | 209 | prompt_number = content['execution_count'] |
|
210 | 210 | data = content['data'] |
|
211 | 211 | if data.has_key('text/html'): |
|
212 | 212 | self._append_plain_text(self.output_sep, True) |
|
213 | 213 | self._append_html(self._make_out_prompt(prompt_number), True) |
|
214 | 214 | html = data['text/html'] |
|
215 | 215 | self._append_plain_text('\n', True) |
|
216 | 216 | self._append_html(html + self.output_sep2, True) |
|
217 | 217 | elif data.has_key('text/plain'): |
|
218 | 218 | self._append_plain_text(self.output_sep, True) |
|
219 | 219 | self._append_html(self._make_out_prompt(prompt_number), True) |
|
220 | 220 | text = data['text/plain'] |
|
221 | 221 | # If the repr is multiline, make sure we start on a new line, |
|
222 | 222 | # so that its lines are aligned. |
|
223 | 223 | if "\n" in text and not self.output_sep.endswith("\n"): |
|
224 | 224 | self._append_plain_text('\n', True) |
|
225 | 225 | self._append_plain_text(text + self.output_sep2, True) |
|
226 | 226 | |
|
227 | 227 | def _handle_display_data(self, msg): |
|
228 | 228 | """ The base handler for the ``display_data`` message. |
|
229 | 229 | """ |
|
230 | 230 | self.log.debug("display: %s", msg.get('content', '')) |
|
231 | 231 | # For now, we don't display data from other frontends, but we |
|
232 | 232 | # eventually will as this allows all frontends to monitor the display |
|
233 | 233 | # data. But we need to figure out how to handle this in the GUI. |
|
234 | 234 | if not self._hidden and self._is_from_this_session(msg): |
|
235 | 235 | source = msg['content']['source'] |
|
236 | 236 | data = msg['content']['data'] |
|
237 | 237 | metadata = msg['content']['metadata'] |
|
238 | 238 | # In the regular IPythonWidget, we simply print the plain text |
|
239 | 239 | # representation. |
|
240 | 240 | if data.has_key('text/html'): |
|
241 | 241 | html = data['text/html'] |
|
242 | 242 | self._append_html(html, True) |
|
243 | 243 | elif data.has_key('text/plain'): |
|
244 | 244 | text = data['text/plain'] |
|
245 | 245 | self._append_plain_text(text, True) |
|
246 | 246 | # This newline seems to be needed for text and html output. |
|
247 | 247 | self._append_plain_text(u'\n', True) |
|
248 | 248 | |
|
249 | 249 | def _started_channels(self): |
|
250 | 250 | """ Reimplemented to make a history request. |
|
251 | 251 | """ |
|
252 | 252 | super(IPythonWidget, self)._started_channels() |
|
253 | 253 | self.kernel_manager.shell_channel.history(hist_access_type='tail', |
|
254 | 254 | n=1000) |
|
255 | 255 | #--------------------------------------------------------------------------- |
|
256 | 256 | # 'ConsoleWidget' public interface |
|
257 | 257 | #--------------------------------------------------------------------------- |
|
258 | 258 | |
|
259 | 259 | def copy(self): |
|
260 | 260 | """ Copy the currently selected text to the clipboard, removing prompts |
|
261 | 261 | if possible. |
|
262 | 262 | """ |
|
263 | 263 | text = self._control.textCursor().selection().toPlainText() |
|
264 | 264 | if text: |
|
265 | 265 | lines = map(transform_ipy_prompt, text.splitlines()) |
|
266 | 266 | text = '\n'.join(lines) |
|
267 | 267 | QtGui.QApplication.clipboard().setText(text) |
|
268 | 268 | |
|
269 | 269 | #--------------------------------------------------------------------------- |
|
270 | 270 | # 'FrontendWidget' public interface |
|
271 | 271 | #--------------------------------------------------------------------------- |
|
272 | 272 | |
|
273 | 273 | def execute_file(self, path, hidden=False): |
|
274 | 274 | """ Reimplemented to use the 'run' magic. |
|
275 | 275 | """ |
|
276 | 276 | # Use forward slashes on Windows to avoid escaping each separator. |
|
277 | 277 | if sys.platform == 'win32': |
|
278 | 278 | path = os.path.normpath(path).replace('\\', '/') |
|
279 | 279 | |
|
280 | 280 | # Perhaps we should not be using %run directly, but while we |
|
281 | 281 | # are, it is necessary to quote filenames containing spaces or quotes. |
|
282 | 282 | # Escaping quotes in filename in %run seems tricky and inconsistent, |
|
283 | 283 | # so not trying it at present. |
|
284 | 284 | if '"' in path: |
|
285 | 285 | if "'" in path: |
|
286 | 286 | raise ValueError("Can't run filename containing both single " |
|
287 | 287 | "and double quotes: %s" % path) |
|
288 | 288 | path = "'%s'" % path |
|
289 | 289 | elif ' ' in path or "'" in path: |
|
290 | 290 | path = '"%s"' % path |
|
291 | 291 | |
|
292 | 292 | self.execute('%%run %s' % path, hidden=hidden) |
|
293 | 293 | |
|
294 | 294 | #--------------------------------------------------------------------------- |
|
295 | 295 | # 'FrontendWidget' protected interface |
|
296 | 296 | #--------------------------------------------------------------------------- |
|
297 | 297 | |
|
298 | 298 | def _complete(self): |
|
299 | 299 | """ Reimplemented to support IPython's improved completion machinery. |
|
300 | 300 | """ |
|
301 | 301 | # We let the kernel split the input line, so we *always* send an empty |
|
302 | 302 | # text field. Readline-based frontends do get a real text field which |
|
303 | 303 | # they can use. |
|
304 | 304 | text = '' |
|
305 | 305 | |
|
306 | 306 | # Send the completion request to the kernel |
|
307 | 307 | msg_id = self.kernel_manager.shell_channel.complete( |
|
308 | 308 | text, # text |
|
309 | 309 | self._get_input_buffer_cursor_line(), # line |
|
310 | 310 | self._get_input_buffer_cursor_column(), # cursor_pos |
|
311 | 311 | self.input_buffer) # block |
|
312 | 312 | pos = self._get_cursor().position() |
|
313 | 313 | info = self._CompletionRequest(msg_id, pos) |
|
314 | 314 | self._request_info['complete'] = info |
|
315 | 315 | |
|
316 | 316 | def _process_execute_error(self, msg): |
|
317 | 317 | """ Reimplemented for IPython-style traceback formatting. |
|
318 | 318 | """ |
|
319 | 319 | content = msg['content'] |
|
320 | 320 | traceback = '\n'.join(content['traceback']) + '\n' |
|
321 | 321 | if False: |
|
322 | 322 | # FIXME: For now, tracebacks come as plain text, so we can't use |
|
323 | 323 | # the html renderer yet. Once we refactor ultratb to produce |
|
324 | 324 | # properly styled tracebacks, this branch should be the default |
|
325 | 325 | traceback = traceback.replace(' ', ' ') |
|
326 | 326 | traceback = traceback.replace('\n', '<br/>') |
|
327 | 327 | |
|
328 | 328 | ename = content['ename'] |
|
329 | 329 | ename_styled = '<span class="error">%s</span>' % ename |
|
330 | 330 | traceback = traceback.replace(ename, ename_styled) |
|
331 | 331 | |
|
332 | 332 | self._append_html(traceback) |
|
333 | 333 | else: |
|
334 | 334 | # This is the fallback for now, using plain text with ansi escapes |
|
335 | 335 | self._append_plain_text(traceback) |
|
336 | 336 | |
|
337 | 337 | def _process_execute_payload(self, item): |
|
338 | 338 | """ Reimplemented to dispatch payloads to handler methods. |
|
339 | 339 | """ |
|
340 | 340 | handler = self._payload_handlers.get(item['source']) |
|
341 | 341 | if handler is None: |
|
342 | 342 | # We have no handler for this type of payload, simply ignore it |
|
343 | 343 | return False |
|
344 | 344 | else: |
|
345 | 345 | handler(item) |
|
346 | 346 | return True |
|
347 | 347 | |
|
348 | 348 | def _show_interpreter_prompt(self, number=None): |
|
349 | 349 | """ Reimplemented for IPython-style prompts. |
|
350 | 350 | """ |
|
351 | 351 | # If a number was not specified, make a prompt number request. |
|
352 | 352 | if number is None: |
|
353 | 353 | msg_id = self.kernel_manager.shell_channel.execute('', silent=True) |
|
354 | 354 | info = self._ExecutionRequest(msg_id, 'prompt') |
|
355 | 355 | self._request_info['execute'] = info |
|
356 | 356 | return |
|
357 | 357 | |
|
358 | 358 | # Show a new prompt and save information about it so that it can be |
|
359 | 359 | # updated later if the prompt number turns out to be wrong. |
|
360 | 360 | self._prompt_sep = self.input_sep |
|
361 | 361 | self._show_prompt(self._make_in_prompt(number), html=True) |
|
362 | 362 | block = self._control.document().lastBlock() |
|
363 | 363 | length = len(self._prompt) |
|
364 | 364 | self._previous_prompt_obj = self._PromptBlock(block, length, number) |
|
365 | 365 | |
|
366 | 366 | # Update continuation prompt to reflect (possibly) new prompt length. |
|
367 | 367 | self._set_continuation_prompt( |
|
368 | 368 | self._make_continuation_prompt(self._prompt), html=True) |
|
369 | 369 | |
|
370 | 370 | def _show_interpreter_prompt_for_reply(self, msg): |
|
371 | 371 | """ Reimplemented for IPython-style prompts. |
|
372 | 372 | """ |
|
373 | 373 | # Update the old prompt number if necessary. |
|
374 | 374 | content = msg['content'] |
|
375 | 375 | previous_prompt_number = content['execution_count'] |
|
376 | 376 | if self._previous_prompt_obj and \ |
|
377 | 377 | self._previous_prompt_obj.number != previous_prompt_number: |
|
378 | 378 | block = self._previous_prompt_obj.block |
|
379 | 379 | |
|
380 | 380 | # Make sure the prompt block has not been erased. |
|
381 | 381 | if block.isValid() and block.text(): |
|
382 | 382 | |
|
383 | 383 | # Remove the old prompt and insert a new prompt. |
|
384 | 384 | cursor = QtGui.QTextCursor(block) |
|
385 | 385 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
386 | 386 | QtGui.QTextCursor.KeepAnchor, |
|
387 | 387 | self._previous_prompt_obj.length) |
|
388 | 388 | prompt = self._make_in_prompt(previous_prompt_number) |
|
389 | 389 | self._prompt = self._insert_html_fetching_plain_text( |
|
390 | 390 | cursor, prompt) |
|
391 | 391 | |
|
392 | 392 | # When the HTML is inserted, Qt blows away the syntax |
|
393 | 393 | # highlighting for the line, so we need to rehighlight it. |
|
394 | 394 | self._highlighter.rehighlightBlock(cursor.block()) |
|
395 | 395 | |
|
396 | 396 | self._previous_prompt_obj = None |
|
397 | 397 | |
|
398 | 398 | # Show a new prompt with the kernel's estimated prompt number. |
|
399 | 399 | self._show_interpreter_prompt(previous_prompt_number + 1) |
|
400 | 400 | |
|
401 | 401 | #--------------------------------------------------------------------------- |
|
402 | 402 | # 'IPythonWidget' interface |
|
403 | 403 | #--------------------------------------------------------------------------- |
|
404 | 404 | |
|
405 | 405 | def set_default_style(self, colors='lightbg'): |
|
406 | 406 | """ Sets the widget style to the class defaults. |
|
407 | 407 | |
|
408 | 408 | Parameters: |
|
409 | 409 | ----------- |
|
410 | 410 | colors : str, optional (default lightbg) |
|
411 | 411 | Whether to use the default IPython light background or dark |
|
412 | 412 | background or B&W style. |
|
413 | 413 | """ |
|
414 | 414 | colors = colors.lower() |
|
415 | 415 | if colors=='lightbg': |
|
416 | 416 | self.style_sheet = styles.default_light_style_sheet |
|
417 | 417 | self.syntax_style = styles.default_light_syntax_style |
|
418 | 418 | elif colors=='linux': |
|
419 | 419 | self.style_sheet = styles.default_dark_style_sheet |
|
420 | 420 | self.syntax_style = styles.default_dark_syntax_style |
|
421 | 421 | elif colors=='nocolor': |
|
422 | 422 | self.style_sheet = styles.default_bw_style_sheet |
|
423 | 423 | self.syntax_style = styles.default_bw_syntax_style |
|
424 | 424 | else: |
|
425 | 425 | raise KeyError("No such color scheme: %s"%colors) |
|
426 | 426 | |
|
427 | 427 | #--------------------------------------------------------------------------- |
|
428 | 428 | # 'IPythonWidget' protected interface |
|
429 | 429 | #--------------------------------------------------------------------------- |
|
430 | 430 | |
|
431 | 431 | def _edit(self, filename, line=None): |
|
432 | 432 | """ Opens a Python script for editing. |
|
433 | 433 | |
|
434 | 434 | Parameters: |
|
435 | 435 | ----------- |
|
436 | 436 | filename : str |
|
437 | 437 | A path to a local system file. |
|
438 | 438 | |
|
439 | 439 | line : int, optional |
|
440 | 440 | A line of interest in the file. |
|
441 | 441 | """ |
|
442 | 442 | if self.custom_edit: |
|
443 | 443 | self.custom_edit_requested.emit(filename, line) |
|
444 | 444 | elif not self.editor: |
|
445 | 445 | self._append_plain_text('No default editor available.\n' |
|
446 | 446 | 'Specify a GUI text editor in the `IPythonWidget.editor` ' |
|
447 | 447 | 'configurable to enable the %edit magic') |
|
448 | 448 | else: |
|
449 | 449 | try: |
|
450 | 450 | filename = '"%s"' % filename |
|
451 | 451 | if line and self.editor_line: |
|
452 | 452 | command = self.editor_line.format(filename=filename, |
|
453 | 453 | line=line) |
|
454 | 454 | else: |
|
455 | 455 | try: |
|
456 | 456 | command = self.editor.format() |
|
457 | 457 | except KeyError: |
|
458 | 458 | command = self.editor.format(filename=filename) |
|
459 | 459 | else: |
|
460 | 460 | command += ' ' + filename |
|
461 | 461 | except KeyError: |
|
462 | 462 | self._append_plain_text('Invalid editor command.\n') |
|
463 | 463 | else: |
|
464 | 464 | try: |
|
465 | 465 | Popen(command, shell=True) |
|
466 | 466 | except OSError: |
|
467 | 467 | msg = 'Opening editor with command "%s" failed.\n' |
|
468 | 468 | self._append_plain_text(msg % command) |
|
469 | 469 | |
|
470 | 470 | def _make_in_prompt(self, number): |
|
471 | 471 | """ Given a prompt number, returns an HTML In prompt. |
|
472 | 472 | """ |
|
473 | 473 | try: |
|
474 | 474 | body = self.in_prompt % number |
|
475 | 475 | except TypeError: |
|
476 | 476 | # allow in_prompt to leave out number, e.g. '>>> ' |
|
477 | 477 | body = self.in_prompt |
|
478 | 478 | return '<span class="in-prompt">%s</span>' % body |
|
479 | 479 | |
|
480 | 480 | def _make_continuation_prompt(self, prompt): |
|
481 | 481 | """ Given a plain text version of an In prompt, returns an HTML |
|
482 | 482 | continuation prompt. |
|
483 | 483 | """ |
|
484 | 484 | end_chars = '...: ' |
|
485 | 485 | space_count = len(prompt.lstrip('\n')) - len(end_chars) |
|
486 | 486 | body = ' ' * space_count + end_chars |
|
487 | 487 | return '<span class="in-prompt">%s</span>' % body |
|
488 | 488 | |
|
489 | 489 | def _make_out_prompt(self, number): |
|
490 | 490 | """ Given a prompt number, returns an HTML Out prompt. |
|
491 | 491 | """ |
|
492 | 492 | body = self.out_prompt % number |
|
493 | 493 | return '<span class="out-prompt">%s</span>' % body |
|
494 | 494 | |
|
495 | 495 | #------ Payload handlers -------------------------------------------------- |
|
496 | 496 | |
|
497 | 497 | # Payload handlers with a generic interface: each takes the opaque payload |
|
498 | 498 | # dict, unpacks it and calls the underlying functions with the necessary |
|
499 | 499 | # arguments. |
|
500 | 500 | |
|
501 | 501 | def _handle_payload_edit(self, item): |
|
502 | 502 | self._edit(item['filename'], item['line_number']) |
|
503 | 503 | |
|
504 | 504 | def _handle_payload_exit(self, item): |
|
505 | 505 | self._keep_kernel_on_exit = item['keepkernel'] |
|
506 | self.exit_requested.emit() | |
|
506 | self.exit_requested.emit(self) | |
|
507 | 507 | |
|
508 | 508 | def _handle_payload_next_input(self, item): |
|
509 | 509 | self.input_buffer = dedent(item['text'].rstrip()) |
|
510 | 510 | |
|
511 | 511 | def _handle_payload_page(self, item): |
|
512 | 512 | # Since the plain text widget supports only a very small subset of HTML |
|
513 | 513 | # and we have no control over the HTML source, we only page HTML |
|
514 | 514 | # payloads in the rich text widget. |
|
515 | 515 | if item['html'] and self.kind == 'rich': |
|
516 | 516 | self._page(item['html'], html=True) |
|
517 | 517 | else: |
|
518 | 518 | self._page(item['text'], html=False) |
|
519 | 519 | |
|
520 | 520 | #------ Trait change handlers -------------------------------------------- |
|
521 | 521 | |
|
522 | 522 | def _style_sheet_changed(self): |
|
523 | 523 | """ Set the style sheets of the underlying widgets. |
|
524 | 524 | """ |
|
525 | 525 | self.setStyleSheet(self.style_sheet) |
|
526 | 526 | self._control.document().setDefaultStyleSheet(self.style_sheet) |
|
527 | 527 | if self._page_control: |
|
528 | 528 | self._page_control.document().setDefaultStyleSheet(self.style_sheet) |
|
529 | 529 | |
|
530 | 530 | bg_color = self._control.palette().window().color() |
|
531 | 531 | self._ansi_processor.set_background_color(bg_color) |
|
532 | 532 | |
|
533 | 533 | |
|
534 | 534 | def _syntax_style_changed(self): |
|
535 | 535 | """ Set the style for the syntax highlighter. |
|
536 | 536 | """ |
|
537 | 537 | if self._highlighter is None: |
|
538 | 538 | # ignore premature calls |
|
539 | 539 | return |
|
540 | 540 | if self.syntax_style: |
|
541 | 541 | self._highlighter.set_style(self.syntax_style) |
|
542 | 542 | else: |
|
543 | 543 | self._highlighter.set_style_sheet(self.style_sheet) |
|
544 | 544 | |
|
545 | 545 | #------ Trait default initializers ----------------------------------------- |
|
546 | 546 | |
|
547 | 547 | def _banner_default(self): |
|
548 | 548 | from IPython.core.usage import default_gui_banner |
|
549 | 549 | return default_gui_banner |
@@ -1,802 +1,953 b'' | |||
|
1 | 1 | """ A minimal application using the Qt console-style IPython frontend. |
|
2 | 2 | |
|
3 | 3 | This is not a complete console app, as subprocess will not be able to receive |
|
4 | 4 | input, there is no real readline support, among other limitations. |
|
5 | 5 | |
|
6 | 6 | Authors: |
|
7 | 7 | |
|
8 | 8 | * Evan Patterson |
|
9 | 9 | * Min RK |
|
10 | 10 | * Erik Tollerud |
|
11 | 11 | * Fernando Perez |
|
12 | 12 | |
|
13 | 13 | """ |
|
14 | 14 | |
|
15 | 15 | #----------------------------------------------------------------------------- |
|
16 | 16 | # Imports |
|
17 | 17 | #----------------------------------------------------------------------------- |
|
18 | 18 | |
|
19 | 19 | # stdlib imports |
|
20 | 20 | import json |
|
21 | 21 | import os |
|
22 | 22 | import signal |
|
23 | 23 | import sys |
|
24 | 24 | |
|
25 | 25 | # System library imports |
|
26 | 26 | from IPython.external.qt import QtGui,QtCore |
|
27 | 27 | from pygments.styles import get_all_styles |
|
28 | 28 | |
|
29 | 29 | # Local imports |
|
30 | 30 | from IPython.config.application import boolean_flag |
|
31 | 31 | from IPython.core.application import BaseIPythonApplication |
|
32 | 32 | from IPython.core.profiledir import ProfileDir |
|
33 | 33 | from IPython.lib.kernel import tunnel_to_kernel, find_connection_file |
|
34 | 34 | from IPython.frontend.qt.console.frontend_widget import FrontendWidget |
|
35 | 35 | from IPython.frontend.qt.console.ipython_widget import IPythonWidget |
|
36 | 36 | from IPython.frontend.qt.console.rich_ipython_widget import RichIPythonWidget |
|
37 | 37 | from IPython.frontend.qt.console import styles |
|
38 | 38 | from IPython.frontend.qt.kernelmanager import QtKernelManager |
|
39 | 39 | from IPython.utils.path import filefind |
|
40 | 40 | from IPython.utils.py3compat import str_to_bytes |
|
41 | 41 | from IPython.utils.traitlets import ( |
|
42 | 42 | Dict, List, Unicode, Int, CaselessStrEnum, CBool, Any |
|
43 | 43 | ) |
|
44 | 44 | from IPython.zmq.ipkernel import ( |
|
45 | 45 | flags as ipkernel_flags, |
|
46 | 46 | aliases as ipkernel_aliases, |
|
47 | 47 | IPKernelApp |
|
48 | 48 | ) |
|
49 | 49 | from IPython.zmq.session import Session, default_secure |
|
50 | 50 | from IPython.zmq.zmqshell import ZMQInteractiveShell |
|
51 | 51 | |
|
52 | 52 | import application_rc |
|
53 | 53 | |
|
54 | 54 | #----------------------------------------------------------------------------- |
|
55 | 55 | # Network Constants |
|
56 | 56 | #----------------------------------------------------------------------------- |
|
57 | 57 | |
|
58 | 58 | from IPython.utils.localinterfaces import LOCALHOST, LOCAL_IPS |
|
59 | 59 | |
|
60 | 60 | #----------------------------------------------------------------------------- |
|
61 | 61 | # Globals |
|
62 | 62 | #----------------------------------------------------------------------------- |
|
63 | 63 | |
|
64 | 64 | _examples = """ |
|
65 | 65 | ipython qtconsole # start the qtconsole |
|
66 | 66 | ipython qtconsole --pylab=inline # start with pylab in inline plotting mode |
|
67 | 67 | """ |
|
68 | 68 | |
|
69 | 69 | #----------------------------------------------------------------------------- |
|
70 | 70 | # Classes |
|
71 | 71 | #----------------------------------------------------------------------------- |
|
72 | 72 | |
|
73 | 73 | class MainWindow(QtGui.QMainWindow): |
|
74 | 74 | |
|
75 | 75 | #--------------------------------------------------------------------------- |
|
76 | 76 | # 'object' interface |
|
77 | 77 | #--------------------------------------------------------------------------- |
|
78 | 78 | |
|
79 | 79 | def __init__(self, app, frontend, existing=False, may_close=True, |
|
80 | 80 | confirm_exit=True): |
|
81 | 81 | """ Create a MainWindow for the specified FrontendWidget. |
|
82 | 82 | |
|
83 | 83 | The app is passed as an argument to allow for different |
|
84 | 84 | closing behavior depending on whether we are the Kernel's parent. |
|
85 | 85 | |
|
86 | 86 | If existing is True, then this Console does not own the Kernel. |
|
87 | 87 | |
|
88 | 88 | If may_close is True, then this Console is permitted to close the kernel |
|
89 | 89 | """ |
|
90 | 90 | super(MainWindow, self).__init__() |
|
91 | 91 | self._app = app |
|
92 | 92 | self._frontend = frontend |
|
93 | 93 | self._existing = existing |
|
94 | 94 | if existing: |
|
95 | 95 | self._may_close = may_close |
|
96 | 96 | else: |
|
97 | 97 | self._may_close = True |
|
98 | 98 | self._frontend.exit_requested.connect(self.close) |
|
99 | 99 | self._confirm_exit = confirm_exit |
|
100 | self.setCentralWidget(frontend) | |
|
101 | 100 | |
|
101 | self.tabWidget = QtGui.QTabWidget(self) | |
|
102 | self.tabWidget.setDocumentMode(True) | |
|
103 | self.tabWidget.setTabsClosable(True) | |
|
104 | self.tabWidget.addTab(frontend,"QtConsole1") | |
|
105 | self.tabWidget.tabCloseRequested[int].connect(self.closetab) | |
|
106 | ||
|
107 | self.setCentralWidget(self.tabWidget) | |
|
108 | self.updateTabBarVisibility() | |
|
109 | ||
|
110 | def updateTabBarVisibility(self): | |
|
111 | """ update visibility of the tabBar depending of the number of tab | |
|
112 | ||
|
113 | 0 or 1 tab, tabBar hiddent | |
|
114 | 2+ tabs, tabbarHidden | |
|
115 | ||
|
116 | need to be called explicitely, or be connected to tabInserted/tabRemoved | |
|
117 | """ | |
|
118 | if self.tabWidget.count() <= 1: | |
|
119 | self.tabWidget.tabBar().setVisible(False) | |
|
120 | else: | |
|
121 | self.tabWidget.tabBar().setVisible(True) | |
|
122 | ||
|
123 | def activeFrontend(self): | |
|
124 | return self.tabWidget.currentWidget() | |
|
125 | ||
|
126 | def closetab(self,tab): | |
|
127 | """ Called when a user try to close a tab | |
|
128 | ||
|
129 | It takes the number of the tab to be closed as argument, (does not for | |
|
130 | now, but should) take care of whether or not shuting down the kernel | |
|
131 | attached to the frontend | |
|
132 | """ | |
|
133 | print "closing tab",tab | |
|
134 | try: | |
|
135 | if self.tabWidget.widget(tab)._local_kernel: | |
|
136 | kernel_manager = self.tabWidget.widget(tab).kernel_manager.shutdown_kernel() | |
|
137 | else: | |
|
138 | print "not owning the kernel" | |
|
139 | except: | |
|
140 | print "can't ask the kernel to shutdown" | |
|
141 | #if self.tabWidget.count() == 1: | |
|
142 | #self.close() | |
|
143 | self.tabWidget.removeTab(tab) | |
|
144 | self.updateTabBarVisibility() | |
|
145 | ||
|
146 | def addTabWithFrontend(self,frontend,name=None): | |
|
147 | """ insert a tab with a given frontend in the tab bar, and give it a name | |
|
148 | ||
|
149 | """ | |
|
150 | if not name: | |
|
151 | name=str('no Name '+str(self.tabWidget.count())) | |
|
152 | self.tabWidget.addTab(frontend,name) | |
|
153 | self.updateTabBarVisibility() | |
|
154 | frontend.exit_requested.connect(self.irequest) | |
|
155 | ||
|
156 | def irequest(self,obj): | |
|
157 | print "I request to exit",obj | |
|
158 | print "which is tab:",self.tabWidget.indexOf(obj) | |
|
159 | self.closetab(self.tabWidget.indexOf(obj)) | |
|
102 | 160 | # MenuBar is always present on Mac Os, so let's populate it with possible |
|
103 | 161 | # action, don't do it on other platform as some user might not want the |
|
104 | 162 | # menu bar, or give them an option to remove it |
|
105 | 163 | |
|
106 | 164 | def initMenuBar(self): |
|
107 | 165 | #create menu in the order they should appear in the menu bar |
|
108 | 166 | self.fileMenu = self.menuBar().addMenu("File") |
|
109 | 167 | self.editMenu = self.menuBar().addMenu("Edit") |
|
110 | 168 | self.fontMenu = self.menuBar().addMenu("Font") |
|
111 | 169 | self.windowMenu = self.menuBar().addMenu("Window") |
|
112 | 170 | self.magicMenu = self.menuBar().addMenu("Magic") |
|
113 | 171 | |
|
114 | 172 | # please keep the Help menu in Mac Os even if empty. It will |
|
115 | 173 | # automatically contain a search field to search inside menus and |
|
116 | 174 | # please keep it spelled in English, as long as Qt Doesn't support |
|
117 | 175 | # a QAction.MenuRole like HelpMenuRole otherwise it will loose |
|
118 | 176 | # this search field fonctionnality |
|
119 | 177 | |
|
120 | 178 | self.helpMenu = self.menuBar().addMenu("Help") |
|
121 | 179 | |
|
122 | 180 | # sould wrap every line of the following block into a try/except, |
|
123 | 181 | # as we are not sure of instanciating a _frontend which support all |
|
124 | 182 | # theses actions, but there might be a better way |
|
125 | 183 | try: |
|
126 | self.fileMenu.addAction(self._frontend.print_action) | |
|
184 | pass | |
|
185 | self.print_action = QtGui.QAction("Print", | |
|
186 | self, | |
|
187 | shortcut="Ctrl+P", | |
|
188 | triggered=self.undo_active_frontend) | |
|
189 | self.fileMenu.addAction(self.print_action) | |
|
127 | 190 | except AttributeError: |
|
128 | print "trying to add unexisting action, skipping" | |
|
191 | print "trying to add unexisting action (print), skipping" | |
|
129 | 192 | |
|
130 | 193 | try: |
|
131 | self.fileMenu.addAction(self._frontend.export_action) | |
|
194 | self.export_action=QtGui.QAction("Export", | |
|
195 | self, | |
|
196 | shortcut="Ctrl+S", | |
|
197 | triggered=self.export_action_active_frontend | |
|
198 | ) | |
|
199 | self.fileMenu.addAction(self.export_action) | |
|
132 | 200 | except AttributeError: |
|
133 | print "trying to add unexisting action, skipping" | |
|
201 | print "trying to add unexisting action (Export), skipping" | |
|
134 | 202 | |
|
135 | 203 | try: |
|
136 | 204 | self.fileMenu.addAction(self._frontend.select_all_action) |
|
137 | 205 | except AttributeError: |
|
138 | 206 | print "trying to add unexisting action, skipping" |
|
139 | 207 | |
|
140 | 208 | try: |
|
141 | 209 | self.undo_action = QtGui.QAction("Undo", |
|
142 | 210 | self, |
|
143 | 211 | shortcut="Ctrl+Z", |
|
144 | 212 | statusTip="Undo last action if possible", |
|
145 |
triggered=self._frontend |
|
|
213 | triggered=self.undo_active_frontend) | |
|
146 | 214 | |
|
147 | 215 | self.editMenu.addAction(self.undo_action) |
|
148 | 216 | except AttributeError: |
|
149 | print "trying to add unexisting action, skipping" | |
|
217 | print "trying to add unexisting action (undo), skipping" | |
|
150 | 218 | |
|
151 | 219 | try: |
|
152 | 220 | self.redo_action = QtGui.QAction("Redo", |
|
153 | 221 | self, |
|
154 | 222 | shortcut="Ctrl+Shift+Z", |
|
155 | 223 | statusTip="Redo last action if possible", |
|
156 |
triggered=self._frontend |
|
|
224 | triggered=self.redo_active_frontend) | |
|
157 | 225 | self.editMenu.addAction(self.redo_action) |
|
158 | 226 | except AttributeError: |
|
159 | print "trying to add unexisting action, skipping" | |
|
227 | print "trying to add unexisting action(redo), skipping" | |
|
160 | 228 | |
|
161 | 229 | try: |
|
162 |
self.fontMenu.addAction(self. |
|
|
230 | pass#self.fontMenu.addAction(self.increase_font_size_active_frontend) | |
|
163 | 231 | except AttributeError: |
|
164 | print "trying to add unexisting action, skipping" | |
|
232 | print "trying to add unexisting action (increase font size), skipping" | |
|
165 | 233 | |
|
166 | 234 | try: |
|
167 |
self.fontMenu.addAction(self. |
|
|
235 | pass#self.fontMenu.addAction(self.decrease_font_size_active_frontend) | |
|
168 | 236 | except AttributeError: |
|
169 | print "trying to add unexisting action, skipping" | |
|
237 | print "trying to add unexisting action (decrease font size), skipping" | |
|
170 | 238 | |
|
171 | 239 | try: |
|
172 |
self.fontMenu.addAction(self. |
|
|
240 | pass#self.fontMenu.addAction(self.reset_font_size_active_frontend) | |
|
173 | 241 | except AttributeError: |
|
174 | print "trying to add unexisting action, skipping" | |
|
242 | print "trying to add unexisting action (reset font size), skipping" | |
|
175 | 243 | |
|
176 | 244 | try: |
|
177 | 245 | self.reset_action = QtGui.QAction("Reset", |
|
178 | 246 | self, |
|
179 | 247 | statusTip="Clear all varible from workspace", |
|
180 |
triggered=self. |
|
|
248 | triggered=self.reset_magic_active_frontend) | |
|
181 | 249 | self.magicMenu.addAction(self.reset_action) |
|
182 | 250 | except AttributeError: |
|
183 | 251 | print "trying to add unexisting action (reset), skipping" |
|
184 | 252 | |
|
185 | 253 | try: |
|
186 | 254 | self.history_action = QtGui.QAction("History", |
|
187 | 255 | self, |
|
188 | 256 | statusTip="show command history", |
|
189 |
triggered=self. |
|
|
257 | triggered=self.history_magic_active_frontend) | |
|
190 | 258 | self.magicMenu.addAction(self.history_action) |
|
191 | 259 | except AttributeError: |
|
192 | 260 | print "trying to add unexisting action (history), skipping" |
|
193 | 261 | |
|
194 | 262 | try: |
|
195 | 263 | self.save_action = QtGui.QAction("Export History ", |
|
196 | 264 | self, |
|
197 | 265 | statusTip="Export History as Python File", |
|
198 |
triggered=self. |
|
|
266 | triggered=self.save_magic_active_frontend) | |
|
199 | 267 | self.magicMenu.addAction(self.save_action) |
|
200 | 268 | except AttributeError: |
|
201 | 269 | print "trying to add unexisting action (save), skipping" |
|
202 | 270 | |
|
203 | 271 | try: |
|
204 | 272 | self.clear_action = QtGui.QAction("Clear", |
|
205 | 273 | self, |
|
206 | 274 | statusTip="Clear the console", |
|
207 |
triggered=self. |
|
|
275 | triggered=self.clear_magic_active_frontend) | |
|
208 | 276 | self.magicMenu.addAction(self.clear_action) |
|
209 | 277 | except AttributeError: |
|
210 | 278 | print "trying to add unexisting action, skipping" |
|
211 | 279 | |
|
212 | 280 | try: |
|
213 | 281 | self.who_action = QtGui.QAction("Who", |
|
214 | 282 | self, |
|
215 | 283 | statusTip="List interactive variable", |
|
216 |
triggered=self. |
|
|
284 | triggered=self.who_magic_active_frontend) | |
|
217 | 285 | self.magicMenu.addAction(self.who_action) |
|
218 | 286 | except AttributeError: |
|
219 | 287 | print "trying to add unexisting action (who), skipping" |
|
220 | 288 | |
|
221 | 289 | try: |
|
222 | 290 | self.who_ls_action = QtGui.QAction("Who ls", |
|
223 | 291 | self, |
|
224 | 292 | statusTip="Return a list of interactive variable", |
|
225 |
triggered=self. |
|
|
293 | triggered=self.who_ls_magic_active_frontend) | |
|
226 | 294 | self.magicMenu.addAction(self.who_ls_action) |
|
227 | 295 | except AttributeError: |
|
228 | 296 | print "trying to add unexisting action (who_ls), skipping" |
|
229 | 297 | |
|
230 | 298 | try: |
|
231 | 299 | self.whos_action = QtGui.QAction("Whos", |
|
232 | 300 | self, |
|
233 | 301 | statusTip="List interactive variable with detail", |
|
234 |
triggered=self. |
|
|
302 | triggered=self.whos_magic_active_frontend) | |
|
235 | 303 | self.magicMenu.addAction(self.whos_action) |
|
236 | 304 | except AttributeError: |
|
237 | 305 | print "trying to add unexisting action (whos), skipping" |
|
238 | 306 | |
|
239 | ||
|
307 | def undo_active_frontend(self): | |
|
308 | self.activeFrontend().undo() | |
|
309 | ||
|
310 | def redo_active_frontend(self): | |
|
311 | self.activeFrontend().redo() | |
|
312 | def reset_magic_active_frontend(self): | |
|
313 | self.activeFrontend().reset_magic() | |
|
314 | def history_magic_active_frontend(self): | |
|
315 | self.activeFrontend().history_magic() | |
|
316 | def save_magic_active_frontend(self): | |
|
317 | self.activeFrontend().save_magic() | |
|
318 | def clear_magic_active_frontend(self): | |
|
319 | self.activeFrontend().clear_magic() | |
|
320 | def who_magic_active_frontend(self): | |
|
321 | self.activeFrontend().who_magic() | |
|
322 | def who_ls_magic_active_frontend(self): | |
|
323 | self.activeFrontend().who_ls_magic() | |
|
324 | def whos_magic_active_frontend(self): | |
|
325 | self.activeFrontend().whos_magic() | |
|
326 | ||
|
327 | def print_action_active_frontend(self): | |
|
328 | self.activeFrontend().print_action() | |
|
329 | ||
|
330 | def export_action_active_frontend(self): | |
|
331 | self.activeFrontend().export_action() | |
|
332 | ||
|
333 | def select_all_action_frontend(self): | |
|
334 | self.activeFrontend().select_all_action() | |
|
335 | ||
|
336 | def increase_font_size_active_frontend(self): | |
|
337 | self.activeFrontend().increase_font_size() | |
|
338 | def decrease_font_size_active_frontend(self): | |
|
339 | self.activeFrontend().decrease_font_size() | |
|
340 | def reset_font_size_active_frontend(self): | |
|
341 | self.activeFrontend().reset_font_size() | |
|
240 | 342 | #--------------------------------------------------------------------------- |
|
241 | 343 | # QWidget interface |
|
242 | 344 | #--------------------------------------------------------------------------- |
|
243 | 345 | |
|
244 | 346 | def closeEvent(self, event): |
|
245 | 347 | """ Close the window and the kernel (if necessary). |
|
246 | 348 | |
|
247 | 349 | This will prompt the user if they are finished with the kernel, and if |
|
248 | 350 | so, closes the kernel cleanly. Alternatively, if the exit magic is used, |
|
249 | 351 | it closes without prompt. |
|
250 | 352 | """ |
|
251 | 353 | keepkernel = None #Use the prompt by default |
|
252 | 354 | if hasattr(self._frontend,'_keep_kernel_on_exit'): #set by exit magic |
|
253 | 355 | keepkernel = self._frontend._keep_kernel_on_exit |
|
254 | 356 | |
|
255 | 357 | kernel_manager = self._frontend.kernel_manager |
|
256 | 358 | |
|
257 | 359 | if keepkernel is None and not self._confirm_exit: |
|
258 | 360 | # don't prompt, just terminate the kernel if we own it |
|
259 | 361 | # or leave it alone if we don't |
|
260 | 362 | keepkernel = not self._existing |
|
261 | 363 | |
|
262 | 364 | if keepkernel is None: #show prompt |
|
263 | 365 | if kernel_manager and kernel_manager.channels_running: |
|
264 | 366 | title = self.window().windowTitle() |
|
265 | 367 | cancel = QtGui.QMessageBox.Cancel |
|
266 | 368 | okay = QtGui.QMessageBox.Ok |
|
267 | 369 | if self._may_close: |
|
268 | 370 | msg = "You are closing this Console window." |
|
269 | 371 | info = "Would you like to quit the Kernel and all attached Consoles as well?" |
|
270 | 372 | justthis = QtGui.QPushButton("&No, just this Console", self) |
|
271 | 373 | justthis.setShortcut('N') |
|
272 | 374 | closeall = QtGui.QPushButton("&Yes, quit everything", self) |
|
273 | 375 | closeall.setShortcut('Y') |
|
274 | 376 | box = QtGui.QMessageBox(QtGui.QMessageBox.Question, |
|
275 | 377 | title, msg) |
|
276 | 378 | box.setInformativeText(info) |
|
277 | 379 | box.addButton(cancel) |
|
278 | 380 | box.addButton(justthis, QtGui.QMessageBox.NoRole) |
|
279 | 381 | box.addButton(closeall, QtGui.QMessageBox.YesRole) |
|
280 | 382 | box.setDefaultButton(closeall) |
|
281 | 383 | box.setEscapeButton(cancel) |
|
282 | 384 | pixmap = QtGui.QPixmap(':/icon/IPythonConsole.png') |
|
283 | 385 | scaledpixmap = pixmap.scaledToWidth(64,mode=QtCore.Qt.SmoothTransformation) |
|
284 | 386 | box.setIconPixmap(scaledpixmap) |
|
285 | 387 | reply = box.exec_() |
|
286 | 388 | if reply == 1: # close All |
|
287 | 389 | kernel_manager.shutdown_kernel() |
|
288 | 390 | #kernel_manager.stop_channels() |
|
289 | 391 | event.accept() |
|
290 | 392 | elif reply == 0: # close Console |
|
291 | 393 | if not self._existing: |
|
292 | 394 | # Have kernel: don't quit, just close the window |
|
293 | 395 | self._app.setQuitOnLastWindowClosed(False) |
|
294 | 396 | self.deleteLater() |
|
295 | 397 | event.accept() |
|
296 | 398 | else: |
|
297 | 399 | event.ignore() |
|
298 | 400 | else: |
|
299 | 401 | reply = QtGui.QMessageBox.question(self, title, |
|
300 | 402 | "Are you sure you want to close this Console?"+ |
|
301 | 403 | "\nThe Kernel and other Consoles will remain active.", |
|
302 | 404 | okay|cancel, |
|
303 | 405 | defaultButton=okay |
|
304 | 406 | ) |
|
305 | 407 | if reply == okay: |
|
306 | 408 | event.accept() |
|
307 | 409 | else: |
|
308 | 410 | event.ignore() |
|
309 | 411 | elif keepkernel: #close console but leave kernel running (no prompt) |
|
310 | 412 | if kernel_manager and kernel_manager.channels_running: |
|
311 | 413 | if not self._existing: |
|
312 | 414 | # I have the kernel: don't quit, just close the window |
|
313 | 415 | self._app.setQuitOnLastWindowClosed(False) |
|
314 | 416 | event.accept() |
|
315 | 417 | else: #close console and kernel (no prompt) |
|
316 | 418 | if kernel_manager and kernel_manager.channels_running: |
|
317 | 419 | kernel_manager.shutdown_kernel() |
|
318 | 420 | event.accept() |
|
319 | 421 | |
|
320 | 422 | #----------------------------------------------------------------------------- |
|
321 | 423 | # Aliases and Flags |
|
322 | 424 | #----------------------------------------------------------------------------- |
|
323 | 425 | |
|
324 | 426 | flags = dict(ipkernel_flags) |
|
325 | 427 | qt_flags = { |
|
326 | 428 | 'existing' : ({'IPythonQtConsoleApp' : {'existing' : 'kernel*.json'}}, |
|
327 | 429 | "Connect to an existing kernel. If no argument specified, guess most recent"), |
|
328 | 430 | 'pure' : ({'IPythonQtConsoleApp' : {'pure' : True}}, |
|
329 | 431 | "Use a pure Python kernel instead of an IPython kernel."), |
|
330 | 432 | 'plain' : ({'ConsoleWidget' : {'kind' : 'plain'}}, |
|
331 | 433 | "Disable rich text support."), |
|
332 | 434 | } |
|
333 | 435 | qt_flags.update(boolean_flag( |
|
334 | 436 | 'gui-completion', 'ConsoleWidget.gui_completion', |
|
335 | 437 | "use a GUI widget for tab completion", |
|
336 | 438 | "use plaintext output for completion" |
|
337 | 439 | )) |
|
338 | 440 | qt_flags.update(boolean_flag( |
|
339 | 441 | 'confirm-exit', 'IPythonQtConsoleApp.confirm_exit', |
|
340 | 442 | """Set to display confirmation dialog on exit. You can always use 'exit' or 'quit', |
|
341 | 443 | to force a direct exit without any confirmation. |
|
342 | 444 | """, |
|
343 | 445 | """Don't prompt the user when exiting. This will terminate the kernel |
|
344 | 446 | if it is owned by the frontend, and leave it alive if it is external. |
|
345 | 447 | """ |
|
346 | 448 | )) |
|
347 | 449 | flags.update(qt_flags) |
|
348 | 450 | |
|
349 | 451 | aliases = dict(ipkernel_aliases) |
|
350 | 452 | |
|
351 | 453 | qt_aliases = dict( |
|
352 | 454 | hb = 'IPythonQtConsoleApp.hb_port', |
|
353 | 455 | shell = 'IPythonQtConsoleApp.shell_port', |
|
354 | 456 | iopub = 'IPythonQtConsoleApp.iopub_port', |
|
355 | 457 | stdin = 'IPythonQtConsoleApp.stdin_port', |
|
356 | 458 | ip = 'IPythonQtConsoleApp.ip', |
|
357 | 459 | existing = 'IPythonQtConsoleApp.existing', |
|
358 | 460 | f = 'IPythonQtConsoleApp.connection_file', |
|
359 | 461 | |
|
360 | 462 | style = 'IPythonWidget.syntax_style', |
|
361 | 463 | stylesheet = 'IPythonQtConsoleApp.stylesheet', |
|
362 | 464 | colors = 'ZMQInteractiveShell.colors', |
|
363 | 465 | |
|
364 | 466 | editor = 'IPythonWidget.editor', |
|
365 | 467 | paging = 'ConsoleWidget.paging', |
|
366 | 468 | ssh = 'IPythonQtConsoleApp.sshserver', |
|
367 | 469 | ) |
|
368 | 470 | aliases.update(qt_aliases) |
|
369 | 471 | |
|
370 | 472 | |
|
371 | 473 | #----------------------------------------------------------------------------- |
|
372 | 474 | # IPythonQtConsole |
|
373 | 475 | #----------------------------------------------------------------------------- |
|
374 | 476 | |
|
375 | 477 | |
|
376 | 478 | class IPythonQtConsoleApp(BaseIPythonApplication): |
|
377 | 479 | name = 'ipython-qtconsole' |
|
378 | 480 | default_config_file_name='ipython_config.py' |
|
379 | 481 | |
|
380 | 482 | description = """ |
|
381 | 483 | The IPython QtConsole. |
|
382 | 484 | |
|
383 | 485 | This launches a Console-style application using Qt. It is not a full |
|
384 | 486 | console, in that launched terminal subprocesses will not be able to accept |
|
385 | 487 | input. |
|
386 | 488 | |
|
387 | 489 | The QtConsole supports various extra features beyond the Terminal IPython |
|
388 | 490 | shell, such as inline plotting with matplotlib, via: |
|
389 | 491 | |
|
390 | 492 | ipython qtconsole --pylab=inline |
|
391 | 493 | |
|
392 | 494 | as well as saving your session as HTML, and printing the output. |
|
393 | 495 | |
|
394 | 496 | """ |
|
395 | 497 | examples = _examples |
|
396 | 498 | |
|
397 | 499 | classes = [IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session] |
|
398 | 500 | flags = Dict(flags) |
|
399 | 501 | aliases = Dict(aliases) |
|
400 | 502 | |
|
401 | 503 | kernel_argv = List(Unicode) |
|
402 | 504 | |
|
403 | 505 | # create requested profiles by default, if they don't exist: |
|
404 | 506 | auto_create = CBool(True) |
|
405 | 507 | # connection info: |
|
406 | 508 | ip = Unicode(LOCALHOST, config=True, |
|
407 | 509 | help="""Set the kernel\'s IP address [default localhost]. |
|
408 | 510 | If the IP address is something other than localhost, then |
|
409 | 511 | Consoles on other machines will be able to connect |
|
410 | 512 | to the Kernel, so be careful!""" |
|
411 | 513 | ) |
|
412 | 514 | |
|
413 | 515 | sshserver = Unicode('', config=True, |
|
414 | 516 | help="""The SSH server to use to connect to the kernel.""") |
|
415 | 517 | sshkey = Unicode('', config=True, |
|
416 | 518 | help="""Path to the ssh key to use for logging in to the ssh server.""") |
|
417 | 519 | |
|
418 | 520 | hb_port = Int(0, config=True, |
|
419 | 521 | help="set the heartbeat port [default: random]") |
|
420 | 522 | shell_port = Int(0, config=True, |
|
421 | 523 | help="set the shell (XREP) port [default: random]") |
|
422 | 524 | iopub_port = Int(0, config=True, |
|
423 | 525 | help="set the iopub (PUB) port [default: random]") |
|
424 | 526 | stdin_port = Int(0, config=True, |
|
425 | 527 | help="set the stdin (XREQ) port [default: random]") |
|
426 | 528 | connection_file = Unicode('', config=True, |
|
427 | 529 | help="""JSON file in which to store connection info [default: kernel-<pid>.json] |
|
428 | 530 | |
|
429 | 531 | This file will contain the IP, ports, and authentication key needed to connect |
|
430 | 532 | clients to this kernel. By default, this file will be created in the security-dir |
|
431 | 533 | of the current profile, but can be specified by absolute path. |
|
432 | 534 | """) |
|
433 | 535 | def _connection_file_default(self): |
|
434 | 536 | return 'kernel-%i.json' % os.getpid() |
|
435 | 537 | |
|
436 | 538 | existing = Unicode('', config=True, |
|
437 | 539 | help="""Connect to an already running kernel""") |
|
438 | 540 | |
|
439 | 541 | stylesheet = Unicode('', config=True, |
|
440 | 542 | help="path to a custom CSS stylesheet") |
|
441 | 543 | |
|
442 | 544 | pure = CBool(False, config=True, |
|
443 | 545 | help="Use a pure Python kernel instead of an IPython kernel.") |
|
444 | 546 | plain = CBool(False, config=True, |
|
445 | 547 | help="Use a plaintext widget instead of rich text (plain can't print/save).") |
|
446 | 548 | |
|
447 | 549 | def _pure_changed(self, name, old, new): |
|
448 | 550 | kind = 'plain' if self.plain else 'rich' |
|
449 | 551 | self.config.ConsoleWidget.kind = kind |
|
450 | 552 | if self.pure: |
|
451 | 553 | self.widget_factory = FrontendWidget |
|
452 | 554 | elif self.plain: |
|
453 | 555 | self.widget_factory = IPythonWidget |
|
454 | 556 | else: |
|
455 | 557 | self.widget_factory = RichIPythonWidget |
|
456 | 558 | |
|
457 | 559 | _plain_changed = _pure_changed |
|
458 | 560 | |
|
459 | 561 | confirm_exit = CBool(True, config=True, |
|
460 | 562 | help=""" |
|
461 | 563 | Set to display confirmation dialog on exit. You can always use 'exit' or 'quit', |
|
462 | 564 | to force a direct exit without any confirmation.""", |
|
463 | 565 | ) |
|
464 | 566 | |
|
465 | 567 | # the factory for creating a widget |
|
466 | 568 | widget_factory = Any(RichIPythonWidget) |
|
467 | 569 | |
|
468 | 570 | def parse_command_line(self, argv=None): |
|
469 | 571 | super(IPythonQtConsoleApp, self).parse_command_line(argv) |
|
470 | 572 | if argv is None: |
|
471 | 573 | argv = sys.argv[1:] |
|
472 | 574 | |
|
473 | 575 | self.kernel_argv = list(argv) # copy |
|
474 | 576 | # kernel should inherit default config file from frontend |
|
475 | 577 | self.kernel_argv.append("--KernelApp.parent_appname='%s'"%self.name) |
|
476 | 578 | # Scrub frontend-specific flags |
|
477 | 579 | for a in argv: |
|
478 | 580 | if a.startswith('-') and a.lstrip('-') in qt_flags: |
|
479 | 581 | self.kernel_argv.remove(a) |
|
480 | 582 | swallow_next = False |
|
481 | 583 | for a in argv: |
|
482 | 584 | if swallow_next: |
|
483 | 585 | self.kernel_argv.remove(a) |
|
484 | 586 | swallow_next = False |
|
485 | 587 | continue |
|
486 | 588 | if a.startswith('-'): |
|
487 | 589 | split = a.lstrip('-').split('=') |
|
488 | 590 | alias = split[0] |
|
489 | 591 | if alias in qt_aliases: |
|
490 | 592 | self.kernel_argv.remove(a) |
|
491 | 593 | if len(split) == 1: |
|
492 | 594 | # alias passed with arg via space |
|
493 | 595 | swallow_next = True |
|
494 | 596 | |
|
495 | 597 | def init_connection_file(self): |
|
496 | 598 | """find the connection file, and load the info if found. |
|
497 | 599 | |
|
498 | 600 | The current working directory and the current profile's security |
|
499 | 601 | directory will be searched for the file if it is not given by |
|
500 | 602 | absolute path. |
|
501 | 603 | |
|
502 | 604 | When attempting to connect to an existing kernel and the `--existing` |
|
503 | 605 | argument does not match an existing file, it will be interpreted as a |
|
504 | 606 | fileglob, and the matching file in the current profile's security dir |
|
505 | 607 | with the latest access time will be used. |
|
506 | 608 | """ |
|
507 | 609 | if self.existing: |
|
508 | 610 | try: |
|
509 | 611 | cf = find_connection_file(self.existing) |
|
510 | 612 | except Exception: |
|
511 | 613 | self.log.critical("Could not find existing kernel connection file %s", self.existing) |
|
512 | 614 | self.exit(1) |
|
513 | 615 | self.log.info("Connecting to existing kernel: %s" % cf) |
|
514 | 616 | self.connection_file = cf |
|
515 | 617 | # should load_connection_file only be used for existing? |
|
516 | 618 | # as it is now, this allows reusing ports if an existing |
|
517 | 619 | # file is requested |
|
518 | 620 | try: |
|
519 | 621 | self.load_connection_file() |
|
520 | 622 | except Exception: |
|
521 | 623 | self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True) |
|
522 | 624 | self.exit(1) |
|
523 | 625 | |
|
524 | 626 | def load_connection_file(self): |
|
525 | 627 | """load ip/port/hmac config from JSON connection file""" |
|
526 | 628 | # this is identical to KernelApp.load_connection_file |
|
527 | 629 | # perhaps it can be centralized somewhere? |
|
528 | 630 | try: |
|
529 | 631 | fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir]) |
|
530 | 632 | except IOError: |
|
531 | 633 | self.log.debug("Connection File not found: %s", self.connection_file) |
|
532 | 634 | return |
|
533 | 635 | self.log.debug(u"Loading connection file %s", fname) |
|
534 | 636 | with open(fname) as f: |
|
535 | 637 | s = f.read() |
|
536 | 638 | cfg = json.loads(s) |
|
537 | 639 | if self.ip == LOCALHOST and 'ip' in cfg: |
|
538 | 640 | # not overridden by config or cl_args |
|
539 | 641 | self.ip = cfg['ip'] |
|
540 | 642 | for channel in ('hb', 'shell', 'iopub', 'stdin'): |
|
541 | 643 | name = channel + '_port' |
|
542 | 644 | if getattr(self, name) == 0 and name in cfg: |
|
543 | 645 | # not overridden by config or cl_args |
|
544 | 646 | setattr(self, name, cfg[name]) |
|
545 | 647 | if 'key' in cfg: |
|
546 | 648 | self.config.Session.key = str_to_bytes(cfg['key']) |
|
547 | 649 | |
|
548 | 650 | def init_ssh(self): |
|
549 | 651 | """set up ssh tunnels, if needed.""" |
|
550 | 652 | if not self.sshserver and not self.sshkey: |
|
551 | 653 | return |
|
552 | 654 | |
|
553 | 655 | if self.sshkey and not self.sshserver: |
|
554 | 656 | # specifying just the key implies that we are connecting directly |
|
555 | 657 | self.sshserver = self.ip |
|
556 | 658 | self.ip = LOCALHOST |
|
557 | 659 | |
|
558 | 660 | # build connection dict for tunnels: |
|
559 | 661 | info = dict(ip=self.ip, |
|
560 | 662 | shell_port=self.shell_port, |
|
561 | 663 | iopub_port=self.iopub_port, |
|
562 | 664 | stdin_port=self.stdin_port, |
|
563 | 665 | hb_port=self.hb_port |
|
564 | 666 | ) |
|
565 | 667 | |
|
566 | 668 | self.log.info("Forwarding connections to %s via %s"%(self.ip, self.sshserver)) |
|
567 | 669 | |
|
568 | 670 | # tunnels return a new set of ports, which will be on localhost: |
|
569 | 671 | self.ip = LOCALHOST |
|
570 | 672 | try: |
|
571 | 673 | newports = tunnel_to_kernel(info, self.sshserver, self.sshkey) |
|
572 | 674 | except: |
|
573 | 675 | # even catch KeyboardInterrupt |
|
574 | 676 | self.log.error("Could not setup tunnels", exc_info=True) |
|
575 | 677 | self.exit(1) |
|
576 | 678 | |
|
577 | 679 | self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = newports |
|
578 | 680 | |
|
579 | 681 | cf = self.connection_file |
|
580 | 682 | base,ext = os.path.splitext(cf) |
|
581 | 683 | base = os.path.basename(base) |
|
582 | 684 | self.connection_file = os.path.basename(base)+'-ssh'+ext |
|
583 | 685 | self.log.critical("To connect another client via this tunnel, use:") |
|
584 | 686 | self.log.critical("--existing %s" % self.connection_file) |
|
585 | 687 | |
|
586 | 688 | def init_kernel_manager(self): |
|
587 | 689 | # Don't let Qt or ZMQ swallow KeyboardInterupts. |
|
588 | 690 | signal.signal(signal.SIGINT, signal.SIG_DFL) |
|
589 | 691 | sec = self.profile_dir.security_dir |
|
590 | 692 | try: |
|
591 | 693 | cf = filefind(self.connection_file, ['.', sec]) |
|
592 | 694 | except IOError: |
|
593 | 695 | # file might not exist |
|
594 | 696 | if self.connection_file == os.path.basename(self.connection_file): |
|
595 | 697 | # just shortname, put it in security dir |
|
596 | 698 | cf = os.path.join(sec, self.connection_file) |
|
597 | 699 | else: |
|
598 | 700 | cf = self.connection_file |
|
599 | 701 | |
|
600 | 702 | # Create a KernelManager and start a kernel. |
|
601 | 703 | self.kernel_manager = QtKernelManager( |
|
602 | 704 | ip=self.ip, |
|
603 | 705 | shell_port=self.shell_port, |
|
604 | 706 | iopub_port=self.iopub_port, |
|
605 | 707 | stdin_port=self.stdin_port, |
|
606 | 708 | hb_port=self.hb_port, |
|
607 | 709 | connection_file=cf, |
|
608 | 710 | config=self.config, |
|
609 | 711 | ) |
|
610 | 712 | # start the kernel |
|
611 | 713 | if not self.existing: |
|
612 | 714 | kwargs = dict(ipython=not self.pure) |
|
613 | 715 | kwargs['extra_arguments'] = self.kernel_argv |
|
614 | 716 | self.kernel_manager.start_kernel(**kwargs) |
|
615 | 717 | elif self.sshserver: |
|
616 | 718 | # ssh, write new connection file |
|
617 | 719 | self.kernel_manager.write_connection_file() |
|
618 | 720 | self.kernel_manager.start_channels() |
|
619 | 721 | |
|
722 | def createTabWithNewFrontend(self): | |
|
723 | kernel_manager = QtKernelManager( | |
|
724 | shell_address=(self.ip, self.shell_port), | |
|
725 | sub_address=(self.ip, self.iopub_port), | |
|
726 | stdin_address=(self.ip, self.stdin_port), | |
|
727 | hb_address=(self.ip, self.hb_port), | |
|
728 | config=self.config | |
|
729 | ) | |
|
730 | # start the kernel | |
|
731 | if not self.existing: | |
|
732 | kwargs = dict(ip=self.ip, ipython=not self.pure) | |
|
733 | kwargs['extra_arguments'] = self.kernel_argv | |
|
734 | kernel_manager.start_kernel(**kwargs) | |
|
735 | kernel_manager.start_channels() | |
|
736 | local_kernel = (not self.existing) or self.ip in LOCAL_IPS | |
|
737 | widget = self.widget_factory(config=self.config, | |
|
738 | local_kernel=local_kernel) | |
|
739 | widget.kernel_manager = kernel_manager | |
|
740 | self.window.addTabWithFrontend(widget) | |
|
741 | ||
|
742 | def createTabAttachedToCurrentTabKernel(self): | |
|
743 | currentWidget=self.window.tabWidget.currentWidget() | |
|
744 | currentWidgetIndex=self.window.tabWidget.indexOf(currentWidget) | |
|
745 | ckm=currentWidget.kernel_manager; | |
|
746 | cwname=self.window.tabWidget.tabText(currentWidgetIndex); | |
|
747 | kernel_manager = QtKernelManager( | |
|
748 | shell_address=ckm.shell_address, | |
|
749 | sub_address=ckm.sub_address, | |
|
750 | stdin_address=ckm.stdin_address, | |
|
751 | hb_address=ckm.hb_address, | |
|
752 | config=self.config | |
|
753 | ) | |
|
754 | kernel_manager.start_channels() | |
|
755 | local_kernel = (not self.existing) or self.ip in LOCAL_IPS | |
|
756 | widget = self.widget_factory(config=self.config, | |
|
757 | local_kernel=False) | |
|
758 | widget.kernel_manager = kernel_manager | |
|
759 | self.window.addTabWithFrontend(widget,name=str('('+cwname+') slave')) | |
|
620 | 760 | |
|
621 | 761 | def init_qt_elements(self): |
|
622 | 762 | # Create the widget. |
|
623 | 763 | self.app = QtGui.QApplication([]) |
|
624 | 764 | pixmap=QtGui.QPixmap(':/icon/IPythonConsole.png') |
|
625 | 765 | icon=QtGui.QIcon(pixmap) |
|
626 | 766 | QtGui.QApplication.setWindowIcon(icon) |
|
627 | 767 | |
|
628 | 768 | local_kernel = (not self.existing) or self.ip in LOCAL_IPS |
|
629 | 769 | self.widget = self.widget_factory(config=self.config, |
|
630 | 770 | local_kernel=local_kernel) |
|
631 | 771 | self.widget.kernel_manager = self.kernel_manager |
|
632 | 772 | self.window = MainWindow(self.app, self.widget, self.existing, |
|
633 | 773 | may_close=local_kernel, |
|
634 | 774 | confirm_exit=self.confirm_exit) |
|
635 | 775 | self.window.initMenuBar() |
|
636 | 776 | self.window.setWindowTitle('Python' if self.pure else 'IPython') |
|
637 | 777 | |
|
638 | 778 | def init_colors(self): |
|
639 | 779 | """Configure the coloring of the widget""" |
|
640 | 780 | # Note: This will be dramatically simplified when colors |
|
641 | 781 | # are removed from the backend. |
|
642 | 782 | |
|
643 | 783 | if self.pure: |
|
644 | 784 | # only IPythonWidget supports styling |
|
645 | 785 | return |
|
646 | 786 | |
|
647 | 787 | # parse the colors arg down to current known labels |
|
648 | 788 | try: |
|
649 | 789 | colors = self.config.ZMQInteractiveShell.colors |
|
650 | 790 | except AttributeError: |
|
651 | 791 | colors = None |
|
652 | 792 | try: |
|
653 | 793 | style = self.config.IPythonWidget.colors |
|
654 | 794 | except AttributeError: |
|
655 | 795 | style = None |
|
656 | 796 | |
|
657 | 797 | # find the value for colors: |
|
658 | 798 | if colors: |
|
659 | 799 | colors=colors.lower() |
|
660 | 800 | if colors in ('lightbg', 'light'): |
|
661 | 801 | colors='lightbg' |
|
662 | 802 | elif colors in ('dark', 'linux'): |
|
663 | 803 | colors='linux' |
|
664 | 804 | else: |
|
665 | 805 | colors='nocolor' |
|
666 | 806 | elif style: |
|
667 | 807 | if style=='bw': |
|
668 | 808 | colors='nocolor' |
|
669 | 809 | elif styles.dark_style(style): |
|
670 | 810 | colors='linux' |
|
671 | 811 | else: |
|
672 | 812 | colors='lightbg' |
|
673 | 813 | else: |
|
674 | 814 | colors=None |
|
675 | 815 | |
|
676 | 816 | # Configure the style. |
|
677 | 817 | widget = self.widget |
|
678 | 818 | if style: |
|
679 | 819 | widget.style_sheet = styles.sheet_from_template(style, colors) |
|
680 | 820 | widget.syntax_style = style |
|
681 | 821 | widget._syntax_style_changed() |
|
682 | 822 | widget._style_sheet_changed() |
|
683 | 823 | elif colors: |
|
684 | 824 | # use a default style |
|
685 | 825 | widget.set_default_style(colors=colors) |
|
686 | 826 | else: |
|
687 | 827 | # this is redundant for now, but allows the widget's |
|
688 | 828 | # defaults to change |
|
689 | 829 | widget.set_default_style() |
|
690 | 830 | |
|
691 | 831 | if self.stylesheet: |
|
692 | 832 | # we got an expicit stylesheet |
|
693 | 833 | if os.path.isfile(self.stylesheet): |
|
694 | 834 | with open(self.stylesheet) as f: |
|
695 | 835 | sheet = f.read() |
|
696 | 836 | widget.style_sheet = sheet |
|
697 | 837 | widget._style_sheet_changed() |
|
698 | 838 | else: |
|
699 | 839 | raise IOError("Stylesheet %r not found."%self.stylesheet) |
|
700 | 840 | |
|
701 | 841 | def initialize(self, argv=None): |
|
702 | 842 | super(IPythonQtConsoleApp, self).initialize(argv) |
|
703 | 843 | self.init_connection_file() |
|
704 | 844 | default_secure(self.config) |
|
705 | 845 | self.init_ssh() |
|
706 | 846 | self.init_kernel_manager() |
|
707 | 847 | self.init_qt_elements() |
|
708 | 848 | self.init_colors() |
|
709 | 849 | self.init_window_shortcut() |
|
710 | 850 | |
|
711 | 851 | def init_window_shortcut(self): |
|
712 | 852 | |
|
713 | 853 | self.fullScreenAct = QtGui.QAction("Full Screen", |
|
714 | 854 | self.window, |
|
715 | 855 | shortcut="Ctrl+Meta+Space", |
|
716 | 856 | statusTip="Toggle between Fullscreen and Normal Size", |
|
717 | 857 | triggered=self.toggleFullScreen) |
|
718 | 858 | |
|
859 | self.tabAndNewKernelAct =QtGui.QAction("Tab with New kernel", | |
|
860 | self.window, | |
|
861 | shortcut="Ctrl+T", | |
|
862 | triggered=self.createTabWithNewFrontend) | |
|
863 | self.window.windowMenu.addAction(self.tabAndNewKernelAct) | |
|
864 | self.tabSameKernalAct =QtGui.QAction("Tab with Same kernel", | |
|
865 | self.window, | |
|
866 | shortcut="Ctrl+Shift+T", | |
|
867 | triggered=self.createTabAttachedToCurrentTabKernel) | |
|
868 | self.window.windowMenu.addAction(self.tabSameKernalAct) | |
|
869 | self.window.windowMenu.addSeparator() | |
|
719 | 870 | |
|
720 | 871 | # creating shortcut in menubar only for Mac OS as I don't |
|
721 | 872 | # know the shortcut or if the windows manager assign it in |
|
722 | 873 | # other platform. |
|
723 | 874 | if sys.platform == 'darwin': |
|
724 | 875 | self.minimizeAct = QtGui.QAction("Minimize", |
|
725 | 876 | self.window, |
|
726 | 877 | shortcut="Ctrl+m", |
|
727 | 878 | statusTip="Minimize the window/Restore Normal Size", |
|
728 | 879 | triggered=self.toggleMinimized) |
|
729 | 880 | self.maximizeAct = QtGui.QAction("Maximize", |
|
730 | 881 | self.window, |
|
731 | 882 | shortcut="Ctrl+Shift+M", |
|
732 | 883 | statusTip="Maximize the window/Restore Normal Size", |
|
733 | 884 | triggered=self.toggleMaximized) |
|
734 | 885 | |
|
735 | 886 | self.onlineHelpAct = QtGui.QAction("Open Online Help", |
|
736 | 887 | self.window, |
|
737 | 888 | triggered=self._open_online_help) |
|
738 | 889 | |
|
739 | 890 | self.windowMenu = self.window.windowMenu |
|
740 | 891 | self.windowMenu.addAction(self.minimizeAct) |
|
741 | 892 | self.windowMenu.addAction(self.maximizeAct) |
|
742 | 893 | self.windowMenu.addSeparator() |
|
743 | 894 | self.windowMenu.addAction(self.fullScreenAct) |
|
744 | 895 | |
|
745 | 896 | self.window.helpMenu.addAction(self.onlineHelpAct) |
|
746 | 897 | else: |
|
747 | 898 | # if we don't put it in a menu, we add it to the window so |
|
748 | 899 | # that it can still be triggerd by shortcut |
|
749 | 900 | self.window.addAction(self.fullScreenAct) |
|
750 | 901 | |
|
751 | 902 | def toggleMinimized(self): |
|
752 | 903 | if not self.window.isMinimized(): |
|
753 | 904 | self.window.showMinimized() |
|
754 | 905 | else: |
|
755 | 906 | self.window.showNormal() |
|
756 | 907 | |
|
757 | 908 | def _open_online_help(self): |
|
758 | 909 | QtGui.QDesktopServices.openUrl( |
|
759 | 910 | QtCore.QUrl("http://ipython.org/documentation.html", |
|
760 | 911 | QtCore.QUrl.TolerantMode) |
|
761 | 912 | ) |
|
762 | 913 | |
|
763 | 914 | def toggleMaximized(self): |
|
764 | 915 | if not self.window.isMaximized(): |
|
765 | 916 | self.window.showMaximized() |
|
766 | 917 | else: |
|
767 | 918 | self.window.showNormal() |
|
768 | 919 | |
|
769 | 920 | # Min/Max imizing while in full screen give a bug |
|
770 | 921 | # when going out of full screen, at least on OSX |
|
771 | 922 | def toggleFullScreen(self): |
|
772 | 923 | if not self.window.isFullScreen(): |
|
773 | 924 | self.window.showFullScreen() |
|
774 | 925 | if sys.platform == 'darwin': |
|
775 | 926 | self.maximizeAct.setEnabled(False) |
|
776 | 927 | self.minimizeAct.setEnabled(False) |
|
777 | 928 | else: |
|
778 | 929 | self.window.showNormal() |
|
779 | 930 | if sys.platform == 'darwin': |
|
780 | 931 | self.maximizeAct.setEnabled(True) |
|
781 | 932 | self.minimizeAct.setEnabled(True) |
|
782 | 933 | |
|
783 | 934 | def start(self): |
|
784 | 935 | |
|
785 | 936 | # draw the window |
|
786 | 937 | self.window.show() |
|
787 | 938 | |
|
788 | 939 | # Start the application main loop. |
|
789 | 940 | self.app.exec_() |
|
790 | 941 | |
|
791 | 942 | #----------------------------------------------------------------------------- |
|
792 | 943 | # Main entry point |
|
793 | 944 | #----------------------------------------------------------------------------- |
|
794 | 945 | |
|
795 | 946 | def main(): |
|
796 | 947 | app = IPythonQtConsoleApp() |
|
797 | 948 | app.initialize() |
|
798 | 949 | app.start() |
|
799 | 950 | |
|
800 | 951 | |
|
801 | 952 | if __name__ == '__main__': |
|
802 | 953 | main() |
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