|
|
//----------------------------------------------------------------------------
|
|
|
// Copyright (C) 2008-2011 The IPython Development Team
|
|
|
//
|
|
|
// Distributed under the terms of the BSD License. The full license is in
|
|
|
// the file COPYING, distributed as part of this software.
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
|
|
//============================================================================
|
|
|
// CodeCell
|
|
|
//============================================================================
|
|
|
|
|
|
var IPython = (function (IPython) {
|
|
|
"use strict";
|
|
|
|
|
|
var utils = IPython.utils;
|
|
|
var key = IPython.utils.keycodes;
|
|
|
|
|
|
var CodeCell = function (kernel) {
|
|
|
// The kernel doesn't have to be set at creation time, in that case
|
|
|
// it will be null and set_kernel has to be called later.
|
|
|
this.kernel = kernel || null;
|
|
|
this.code_mirror = null;
|
|
|
this.input_prompt_number = null;
|
|
|
this.tooltip_on_tab = true;
|
|
|
this.collapsed = false;
|
|
|
IPython.Cell.apply(this, arguments);
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype = new IPython.Cell();
|
|
|
|
|
|
|
|
|
CodeCell.prototype.create_element = function () {
|
|
|
var cell = $('<div></div>').addClass('cell border-box-sizing code_cell vbox');
|
|
|
cell.attr('tabindex','2');
|
|
|
var input = $('<div></div>').addClass('input hbox');
|
|
|
input.append($('<div/>').addClass('prompt input_prompt'));
|
|
|
var input_area = $('<div/>').addClass('input_area box-flex1');
|
|
|
this.code_mirror = CodeMirror(input_area.get(0), {
|
|
|
indentUnit : 4,
|
|
|
mode: 'python',
|
|
|
theme: 'ipython',
|
|
|
readOnly: this.read_only,
|
|
|
onKeyEvent: $.proxy(this.handle_codemirror_keyevent,this)
|
|
|
});
|
|
|
input.append(input_area);
|
|
|
var output = $('<div></div>');
|
|
|
cell.append(input).append(output);
|
|
|
this.element = cell;
|
|
|
this.output_area = new IPython.OutputArea(output, true);
|
|
|
|
|
|
// construct a completer only if class exist
|
|
|
// otherwise no print view
|
|
|
if (IPython.Completer !== undefined)
|
|
|
{
|
|
|
this.completer = new IPython.Completer(this);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
CodeCell.prototype.handle_codemirror_keyevent = function (editor, event) {
|
|
|
// This method gets called in CodeMirror's onKeyDown/onKeyPress
|
|
|
// handlers and is used to provide custom key handling. Its return
|
|
|
// value is used to determine if CodeMirror should ignore the event:
|
|
|
// true = ignore, false = don't ignore.
|
|
|
|
|
|
if (this.read_only){
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
var that = this;
|
|
|
// whatever key is pressed, first, cancel the tooltip request before
|
|
|
// they are sent, and remove tooltip if any, except for tab again
|
|
|
if (event.type === 'keydown' && event.which != key.TAB ) {
|
|
|
IPython.tooltip.remove_and_cancel_tooltip();
|
|
|
};
|
|
|
|
|
|
var cur = editor.getCursor();
|
|
|
|
|
|
if (event.keyCode === key.ENTER && (event.shiftKey || event.ctrlKey)) {
|
|
|
// Always ignore shift-enter in CodeMirror as we handle it.
|
|
|
return true;
|
|
|
} else if (event.which === 40 && event.type === 'keypress' && IPython.tooltip.time_before_tooltip >= 0) {
|
|
|
// triger on keypress (!) otherwise inconsistent event.which depending on plateform
|
|
|
// browser and keyboard layout !
|
|
|
// Pressing '(' , request tooltip, don't forget to reappend it
|
|
|
IPython.tooltip.pending(that);
|
|
|
} else if (event.which === key.UPARROW && event.type === 'keydown') {
|
|
|
// If we are not at the top, let CM handle the up arrow and
|
|
|
// prevent the global keydown handler from handling it.
|
|
|
if (!that.at_top()) {
|
|
|
event.stop();
|
|
|
return false;
|
|
|
} else {
|
|
|
return true;
|
|
|
};
|
|
|
} else if (event.which === key.ESC) {
|
|
|
IPython.tooltip.remove_and_cancel_tooltip(true);
|
|
|
return true;
|
|
|
} else if (event.which === key.DOWNARROW && event.type === 'keydown') {
|
|
|
// If we are not at the bottom, let CM handle the down arrow and
|
|
|
// prevent the global keydown handler from handling it.
|
|
|
if (!that.at_bottom()) {
|
|
|
event.stop();
|
|
|
return false;
|
|
|
} else {
|
|
|
return true;
|
|
|
};
|
|
|
} else if (event.keyCode === key.TAB && event.type == 'keydown') {
|
|
|
// Tab completion.
|
|
|
//Do not trim here because of tooltip
|
|
|
if (editor.somethingSelected()){return false}
|
|
|
var pre_cursor = editor.getRange({line:cur.line,ch:0},cur);
|
|
|
if (pre_cursor.trim() === "") {
|
|
|
// Don't autocomplete if the part of the line before the cursor
|
|
|
// is empty. In this case, let CodeMirror handle indentation.
|
|
|
return false;
|
|
|
} else if ((pre_cursor.substr(-1) === "("|| pre_cursor.substr(-1) === " ") && that.tooltip_on_tab ) {
|
|
|
IPython.tooltip.request(that);
|
|
|
// Prevent the event from bubbling up.
|
|
|
event.stop();
|
|
|
// Prevent CodeMirror from handling the tab.
|
|
|
return true;
|
|
|
} else {
|
|
|
event.stop();
|
|
|
this.completer.startCompletion();
|
|
|
return true;
|
|
|
};
|
|
|
} else if (event.keyCode === key.BACKSPACE && event.type == 'keydown') {
|
|
|
// If backspace and the line ends with 4 spaces, remove them.
|
|
|
var line = editor.getLine(cur.line);
|
|
|
var ending = line.slice(-4);
|
|
|
if (ending === ' ') {
|
|
|
editor.replaceRange('',
|
|
|
{line: cur.line, ch: cur.ch-4},
|
|
|
{line: cur.line, ch: cur.ch}
|
|
|
);
|
|
|
event.stop();
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
};
|
|
|
} else {
|
|
|
// keypress/keyup also trigger on TAB press, and we don't want to
|
|
|
// use those to disable tab completion.
|
|
|
return false;
|
|
|
};
|
|
|
return false;
|
|
|
};
|
|
|
|
|
|
|
|
|
// Kernel related calls.
|
|
|
|
|
|
CodeCell.prototype.set_kernel = function (kernel) {
|
|
|
this.kernel = kernel;
|
|
|
}
|
|
|
|
|
|
|
|
|
CodeCell.prototype.execute = function () {
|
|
|
this.output_area.clear_output(true, true, true);
|
|
|
this.set_input_prompt('*');
|
|
|
this.element.addClass("running");
|
|
|
var callbacks = {
|
|
|
'execute_reply': $.proxy(this._handle_execute_reply, this),
|
|
|
'output': $.proxy(this.output_area.handle_output, this.output_area),
|
|
|
'clear_output': $.proxy(this.output_area.handle_clear_output, this.output_area),
|
|
|
'set_next_input': $.proxy(this._handle_set_next_input, this)
|
|
|
};
|
|
|
var msg_id = this.kernel.execute(this.get_text(), callbacks, {silent: false});
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype._handle_execute_reply = function (content) {
|
|
|
this.set_input_prompt(content.execution_count);
|
|
|
this.element.removeClass("running");
|
|
|
$([IPython.events]).trigger('set_dirty.Notebook', {'value': true});
|
|
|
}
|
|
|
|
|
|
CodeCell.prototype._handle_set_next_input = function (text) {
|
|
|
var data = {'cell': this, 'text': text}
|
|
|
$([IPython.events]).trigger('set_next_input.Notebook', data);
|
|
|
}
|
|
|
|
|
|
// Basic cell manipulation.
|
|
|
|
|
|
CodeCell.prototype.select = function () {
|
|
|
IPython.Cell.prototype.select.apply(this);
|
|
|
this.code_mirror.refresh();
|
|
|
this.code_mirror.focus();
|
|
|
// We used to need an additional refresh() after the focus, but
|
|
|
// it appears that this has been fixed in CM. This bug would show
|
|
|
// up on FF when a newly loaded markdown cell was edited.
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.select_all = function () {
|
|
|
var start = {line: 0, ch: 0};
|
|
|
var nlines = this.code_mirror.lineCount();
|
|
|
var last_line = this.code_mirror.getLine(nlines-1);
|
|
|
var end = {line: nlines-1, ch: last_line.length};
|
|
|
this.code_mirror.setSelection(start, end);
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.collapse = function () {
|
|
|
this.collapsed = true;
|
|
|
this.output_area.collapse();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.expand = function () {
|
|
|
this.collapsed = false;
|
|
|
this.output_area.expand();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.toggle_output = function () {
|
|
|
this.collapsed = Boolean(1 - this.collapsed);
|
|
|
this.output_area.toggle_output();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.toggle_output_scroll = function () {
|
|
|
this.output_area.toggle_scroll();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.set_input_prompt = function (number) {
|
|
|
this.input_prompt_number = number;
|
|
|
var ns = number || " ";
|
|
|
this.element.find('div.input_prompt').html('In [' + ns + ']:');
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.clear_input = function () {
|
|
|
this.code_mirror.setValue('');
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.get_text = function () {
|
|
|
return this.code_mirror.getValue();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.set_text = function (code) {
|
|
|
return this.code_mirror.setValue(code);
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.at_top = function () {
|
|
|
var cursor = this.code_mirror.getCursor();
|
|
|
if (cursor.line === 0) {
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.at_bottom = function () {
|
|
|
var cursor = this.code_mirror.getCursor();
|
|
|
if (cursor.line === (this.code_mirror.lineCount()-1)) {
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.clear_output = function (stdout, stderr, other) {
|
|
|
this.output_area.clear_output(stdout, stderr, other);
|
|
|
};
|
|
|
|
|
|
|
|
|
// JSON serialization
|
|
|
|
|
|
CodeCell.prototype.fromJSON = function (data) {
|
|
|
IPython.Cell.prototype.fromJSON.apply(this, arguments);
|
|
|
if (data.cell_type === 'code') {
|
|
|
if (data.input !== undefined) {
|
|
|
this.set_text(data.input);
|
|
|
// make this value the starting point, so that we can only undo
|
|
|
// to this state, instead of a blank cell
|
|
|
this.code_mirror.clearHistory();
|
|
|
}
|
|
|
if (data.prompt_number !== undefined) {
|
|
|
this.set_input_prompt(data.prompt_number);
|
|
|
} else {
|
|
|
this.set_input_prompt();
|
|
|
};
|
|
|
this.output_area.fromJSON(data.outputs);
|
|
|
if (data.collapsed !== undefined) {
|
|
|
if (data.collapsed) {
|
|
|
this.collapse();
|
|
|
} else {
|
|
|
this.expand();
|
|
|
};
|
|
|
};
|
|
|
};
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.toJSON = function () {
|
|
|
var data = IPython.Cell.prototype.toJSON.apply(this);
|
|
|
data.input = this.get_text();
|
|
|
data.cell_type = 'code';
|
|
|
if (this.input_prompt_number) {
|
|
|
data.prompt_number = this.input_prompt_number;
|
|
|
};
|
|
|
var outputs = this.output_area.toJSON();
|
|
|
data.outputs = outputs;
|
|
|
data.language = 'python';
|
|
|
data.collapsed = this.collapsed;
|
|
|
return data;
|
|
|
};
|
|
|
|
|
|
|
|
|
IPython.CodeCell = CodeCell;
|
|
|
|
|
|
return IPython;
|
|
|
}(IPython));
|
|
|
|
