|
|
// Copyright (c) IPython Development Team.
|
|
|
// Distributed under the terms of the Modified BSD License.
|
|
|
|
|
|
define([
|
|
|
'base/js/namespace',
|
|
|
'jquery',
|
|
|
'base/js/utils',
|
|
|
], function(IPython, $, utils) {
|
|
|
// TODO: remove IPython dependency here
|
|
|
"use strict";
|
|
|
|
|
|
// monkey patch CM to be able to syntax highlight cell magics
|
|
|
// bug reported upstream,
|
|
|
// see https://github.com/marijnh/CodeMirror2/issues/670
|
|
|
if(CodeMirror.getMode(1,'text/plain').indent === undefined ){
|
|
|
CodeMirror.modes.null = function() {
|
|
|
return {token: function(stream) {stream.skipToEnd();},indent : function(){return 0;}};
|
|
|
};
|
|
|
}
|
|
|
|
|
|
CodeMirror.patchedGetMode = function(config, mode){
|
|
|
var cmmode = CodeMirror.getMode(config, mode);
|
|
|
if(cmmode.indent === null) {
|
|
|
console.log('patch mode "' , mode, '" on the fly');
|
|
|
cmmode.indent = function(){return 0;};
|
|
|
}
|
|
|
return cmmode;
|
|
|
};
|
|
|
// end monkey patching CodeMirror
|
|
|
|
|
|
var Cell = function (options) {
|
|
|
// Constructor
|
|
|
//
|
|
|
// The Base `Cell` class from which to inherit.
|
|
|
//
|
|
|
// Parameters:
|
|
|
// options: dictionary
|
|
|
// Dictionary of keyword arguments.
|
|
|
// events: $(Events) instance
|
|
|
// config: dictionary
|
|
|
// keyboard_manager: KeyboardManager instance
|
|
|
options = options || {};
|
|
|
this.keyboard_manager = options.keyboard_manager;
|
|
|
this.events = options.events;
|
|
|
var config = this.mergeopt(Cell, options.config);
|
|
|
// superclass default overwrite our default
|
|
|
|
|
|
this.placeholder = config.placeholder || '';
|
|
|
this.read_only = config.cm_config.readOnly;
|
|
|
this.selected = false;
|
|
|
this.rendered = false;
|
|
|
this.mode = 'command';
|
|
|
this.metadata = {};
|
|
|
// load this from metadata later ?
|
|
|
this.user_highlight = 'auto';
|
|
|
this.cm_config = config.cm_config;
|
|
|
this.cell_id = utils.uuid();
|
|
|
this._options = config;
|
|
|
|
|
|
// For JS VM engines optimization, attributes should be all set (even
|
|
|
// to null) in the constructor, and if possible, if different subclass
|
|
|
// have new attributes with same name, they should be created in the
|
|
|
// same order. Easiest is to create and set to null in parent class.
|
|
|
|
|
|
this.element = null;
|
|
|
this.cell_type = this.cell_type || null;
|
|
|
this.code_mirror = null;
|
|
|
|
|
|
this.create_element();
|
|
|
if (this.element !== null) {
|
|
|
this.element.data("cell", this);
|
|
|
this.bind_events();
|
|
|
this.init_classes();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
Cell.options_default = {
|
|
|
cm_config : {
|
|
|
indentUnit : 4,
|
|
|
readOnly: false,
|
|
|
theme: "default",
|
|
|
extraKeys: {
|
|
|
"Cmd-Right":"goLineRight",
|
|
|
"End":"goLineRight",
|
|
|
"Cmd-Left":"goLineLeft"
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
// FIXME: Workaround CM Bug #332 (Safari segfault on drag)
|
|
|
// by disabling drag/drop altogether on Safari
|
|
|
// https://github.com/marijnh/CodeMirror/issues/332
|
|
|
if (utils.browser[0] == "Safari") {
|
|
|
Cell.options_default.cm_config.dragDrop = false;
|
|
|
}
|
|
|
|
|
|
Cell.prototype.mergeopt = function(_class, options, overwrite){
|
|
|
options = options || {};
|
|
|
overwrite = overwrite || {};
|
|
|
return $.extend(true, {}, _class.options_default, options, overwrite);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Empty. Subclasses must implement create_element.
|
|
|
* This should contain all the code to create the DOM element in notebook
|
|
|
* and will be called by Base Class constructor.
|
|
|
* @method create_element
|
|
|
*/
|
|
|
Cell.prototype.create_element = function () {
|
|
|
};
|
|
|
|
|
|
Cell.prototype.init_classes = function () {
|
|
|
// Call after this.element exists to initialize the css classes
|
|
|
// related to selected, rendered and mode.
|
|
|
if (this.selected) {
|
|
|
this.element.addClass('selected');
|
|
|
} else {
|
|
|
this.element.addClass('unselected');
|
|
|
}
|
|
|
if (this.rendered) {
|
|
|
this.element.addClass('rendered');
|
|
|
} else {
|
|
|
this.element.addClass('unrendered');
|
|
|
}
|
|
|
if (this.mode === 'edit') {
|
|
|
this.element.addClass('edit_mode');
|
|
|
} else {
|
|
|
this.element.addClass('command_mode');
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Subclasses can implement override bind_events.
|
|
|
* Be carefull to call the parent method when overwriting as it fires event.
|
|
|
* this will be triggerd after create_element in constructor.
|
|
|
* @method bind_events
|
|
|
*/
|
|
|
Cell.prototype.bind_events = function () {
|
|
|
var that = this;
|
|
|
// We trigger events so that Cell doesn't have to depend on Notebook.
|
|
|
that.element.click(function (event) {
|
|
|
if (!that.selected) {
|
|
|
that.events.trigger('select.Cell', {'cell':that});
|
|
|
}
|
|
|
});
|
|
|
that.element.focusin(function (event) {
|
|
|
if (!that.selected) {
|
|
|
that.events.trigger('select.Cell', {'cell':that});
|
|
|
}
|
|
|
});
|
|
|
if (this.code_mirror) {
|
|
|
this.code_mirror.on("change", function(cm, change) {
|
|
|
that.events.trigger("set_dirty.Notebook", {value: true});
|
|
|
});
|
|
|
}
|
|
|
if (this.code_mirror) {
|
|
|
this.code_mirror.on('focus', function(cm, change) {
|
|
|
that.events.trigger('edit_mode.Cell', {cell: that});
|
|
|
});
|
|
|
}
|
|
|
if (this.code_mirror) {
|
|
|
this.code_mirror.on('blur', function(cm, change) {
|
|
|
that.events.trigger('command_mode.Cell', {cell: that});
|
|
|
});
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* This method gets called in CodeMirror's onKeyDown/onKeyPress
|
|
|
* handlers and is used to provide custom key handling.
|
|
|
*
|
|
|
* To have custom handling, subclasses should override this method, but still call it
|
|
|
* in order to process the Edit mode keyboard shortcuts.
|
|
|
*
|
|
|
* @method handle_codemirror_keyevent
|
|
|
* @param {CodeMirror} editor - The codemirror instance bound to the cell
|
|
|
* @param {event} event - key press event which either should or should not be handled by CodeMirror
|
|
|
* @return {Boolean} `true` if CodeMirror should ignore the event, `false` Otherwise
|
|
|
*/
|
|
|
Cell.prototype.handle_codemirror_keyevent = function (editor, event) {
|
|
|
var that = this;
|
|
|
var shortcuts = this.keyboard_manager.edit_shortcuts;
|
|
|
|
|
|
// if this is an edit_shortcuts shortcut, the global keyboard/shortcut
|
|
|
// manager will handle it
|
|
|
if (shortcuts.handles(event)) { return true; }
|
|
|
|
|
|
return false;
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Triger typsetting of math by mathjax on current cell element
|
|
|
* @method typeset
|
|
|
*/
|
|
|
Cell.prototype.typeset = function () {
|
|
|
if (window.MathJax) {
|
|
|
var cell_math = this.element.get(0);
|
|
|
MathJax.Hub.Queue(["Typeset", MathJax.Hub, cell_math]);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* handle cell level logic when a cell is selected
|
|
|
* @method select
|
|
|
* @return is the action being taken
|
|
|
*/
|
|
|
Cell.prototype.select = function () {
|
|
|
if (!this.selected) {
|
|
|
this.element.addClass('selected');
|
|
|
this.element.removeClass('unselected');
|
|
|
this.selected = true;
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* handle cell level logic when a cell is unselected
|
|
|
* @method unselect
|
|
|
* @return is the action being taken
|
|
|
*/
|
|
|
Cell.prototype.unselect = function () {
|
|
|
if (this.selected) {
|
|
|
this.element.addClass('unselected');
|
|
|
this.element.removeClass('selected');
|
|
|
this.selected = false;
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* handle cell level logic when a cell is rendered
|
|
|
* @method render
|
|
|
* @return is the action being taken
|
|
|
*/
|
|
|
Cell.prototype.render = function () {
|
|
|
if (!this.rendered) {
|
|
|
this.element.addClass('rendered');
|
|
|
this.element.removeClass('unrendered');
|
|
|
this.rendered = true;
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* handle cell level logic when a cell is unrendered
|
|
|
* @method unrender
|
|
|
* @return is the action being taken
|
|
|
*/
|
|
|
Cell.prototype.unrender = function () {
|
|
|
if (this.rendered) {
|
|
|
this.element.addClass('unrendered');
|
|
|
this.element.removeClass('rendered');
|
|
|
this.rendered = false;
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Delegates keyboard shortcut handling to either IPython keyboard
|
|
|
* manager when in command mode, or CodeMirror when in edit mode
|
|
|
*
|
|
|
* @method handle_keyevent
|
|
|
* @param {CodeMirror} editor - The codemirror instance bound to the cell
|
|
|
* @param {event} - key event to be handled
|
|
|
* @return {Boolean} `true` if CodeMirror should ignore the event, `false` Otherwise
|
|
|
*/
|
|
|
Cell.prototype.handle_keyevent = function (editor, event) {
|
|
|
|
|
|
// console.log('CM', this.mode, event.which, event.type)
|
|
|
|
|
|
if (this.mode === 'command') {
|
|
|
return true;
|
|
|
} else if (this.mode === 'edit') {
|
|
|
return this.handle_codemirror_keyevent(editor, event);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* @method at_top
|
|
|
* @return {Boolean}
|
|
|
*/
|
|
|
Cell.prototype.at_top = function () {
|
|
|
var cm = this.code_mirror;
|
|
|
var cursor = cm.getCursor();
|
|
|
if (cursor.line === 0 && cursor.ch === 0) {
|
|
|
return true;
|
|
|
}
|
|
|
return false;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* @method at_bottom
|
|
|
* @return {Boolean}
|
|
|
* */
|
|
|
Cell.prototype.at_bottom = function () {
|
|
|
var cm = this.code_mirror;
|
|
|
var cursor = cm.getCursor();
|
|
|
if (cursor.line === (cm.lineCount()-1) && cursor.ch === cm.getLine(cursor.line).length) {
|
|
|
return true;
|
|
|
}
|
|
|
return false;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* enter the command mode for the cell
|
|
|
* @method command_mode
|
|
|
* @return is the action being taken
|
|
|
*/
|
|
|
Cell.prototype.command_mode = function () {
|
|
|
if (this.mode !== 'command') {
|
|
|
this.element.addClass('command_mode');
|
|
|
this.element.removeClass('edit_mode');
|
|
|
this.mode = 'command';
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* enter the edit mode for the cell
|
|
|
* @method command_mode
|
|
|
* @return is the action being taken
|
|
|
*/
|
|
|
Cell.prototype.edit_mode = function () {
|
|
|
if (this.mode !== 'edit') {
|
|
|
this.element.addClass('edit_mode');
|
|
|
this.element.removeClass('command_mode');
|
|
|
this.mode = 'edit';
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Focus the cell in the DOM sense
|
|
|
* @method focus_cell
|
|
|
*/
|
|
|
Cell.prototype.focus_cell = function () {
|
|
|
this.element.focus();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Focus the editor area so a user can type
|
|
|
*
|
|
|
* NOTE: If codemirror is focused via a mouse click event, you don't want to
|
|
|
* call this because it will cause a page jump.
|
|
|
* @method focus_editor
|
|
|
*/
|
|
|
Cell.prototype.focus_editor = function () {
|
|
|
this.refresh();
|
|
|
this.code_mirror.focus();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Refresh codemirror instance
|
|
|
* @method refresh
|
|
|
*/
|
|
|
Cell.prototype.refresh = function () {
|
|
|
this.code_mirror.refresh();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* should be overritten by subclass
|
|
|
* @method get_text
|
|
|
*/
|
|
|
Cell.prototype.get_text = function () {
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* should be overritten by subclass
|
|
|
* @method set_text
|
|
|
* @param {string} text
|
|
|
*/
|
|
|
Cell.prototype.set_text = function (text) {
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* should be overritten by subclass
|
|
|
* serialise cell to json.
|
|
|
* @method toJSON
|
|
|
**/
|
|
|
Cell.prototype.toJSON = function () {
|
|
|
var data = {};
|
|
|
data.metadata = this.metadata;
|
|
|
data.cell_type = this.cell_type;
|
|
|
return data;
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* should be overritten by subclass
|
|
|
* @method fromJSON
|
|
|
**/
|
|
|
Cell.prototype.fromJSON = function (data) {
|
|
|
if (data.metadata !== undefined) {
|
|
|
this.metadata = data.metadata;
|
|
|
}
|
|
|
this.celltoolbar.rebuild();
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* can the cell be split into two cells
|
|
|
* @method is_splittable
|
|
|
**/
|
|
|
Cell.prototype.is_splittable = function () {
|
|
|
return true;
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* can the cell be merged with other cells
|
|
|
* @method is_mergeable
|
|
|
**/
|
|
|
Cell.prototype.is_mergeable = function () {
|
|
|
return true;
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* @return {String} - the text before the cursor
|
|
|
* @method get_pre_cursor
|
|
|
**/
|
|
|
Cell.prototype.get_pre_cursor = function () {
|
|
|
var cursor = this.code_mirror.getCursor();
|
|
|
var text = this.code_mirror.getRange({line:0, ch:0}, cursor);
|
|
|
text = text.replace(/^\n+/, '').replace(/\n+$/, '');
|
|
|
return text;
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* @return {String} - the text after the cursor
|
|
|
* @method get_post_cursor
|
|
|
**/
|
|
|
Cell.prototype.get_post_cursor = function () {
|
|
|
var cursor = this.code_mirror.getCursor();
|
|
|
var last_line_num = this.code_mirror.lineCount()-1;
|
|
|
var last_line_len = this.code_mirror.getLine(last_line_num).length;
|
|
|
var end = {line:last_line_num, ch:last_line_len};
|
|
|
var text = this.code_mirror.getRange(cursor, end);
|
|
|
text = text.replace(/^\n+/, '').replace(/\n+$/, '');
|
|
|
return text;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Show/Hide CodeMirror LineNumber
|
|
|
* @method show_line_numbers
|
|
|
*
|
|
|
* @param value {Bool} show (true), or hide (false) the line number in CodeMirror
|
|
|
**/
|
|
|
Cell.prototype.show_line_numbers = function (value) {
|
|
|
this.code_mirror.setOption('lineNumbers', value);
|
|
|
this.code_mirror.refresh();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Toggle CodeMirror LineNumber
|
|
|
* @method toggle_line_numbers
|
|
|
**/
|
|
|
Cell.prototype.toggle_line_numbers = function () {
|
|
|
var val = this.code_mirror.getOption('lineNumbers');
|
|
|
this.show_line_numbers(!val);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Force codemirror highlight mode
|
|
|
* @method force_highlight
|
|
|
* @param {object} - CodeMirror mode
|
|
|
**/
|
|
|
Cell.prototype.force_highlight = function(mode) {
|
|
|
this.user_highlight = mode;
|
|
|
this.auto_highlight();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Try to autodetect cell highlight mode, or use selected mode
|
|
|
* @methods _auto_highlight
|
|
|
* @private
|
|
|
* @param {String|object|undefined} - CodeMirror mode | 'auto'
|
|
|
**/
|
|
|
Cell.prototype._auto_highlight = function (modes) {
|
|
|
//Here we handle manually selected modes
|
|
|
var mode;
|
|
|
if( this.user_highlight !== undefined && this.user_highlight != 'auto' )
|
|
|
{
|
|
|
mode = this.user_highlight;
|
|
|
CodeMirror.autoLoadMode(this.code_mirror, mode);
|
|
|
this.code_mirror.setOption('mode', mode);
|
|
|
return;
|
|
|
}
|
|
|
var current_mode = this.code_mirror.getOption('mode', mode);
|
|
|
var first_line = this.code_mirror.getLine(0);
|
|
|
// loop on every pairs
|
|
|
for(mode in modes) {
|
|
|
var regs = modes[mode].reg;
|
|
|
// only one key every time but regexp can't be keys...
|
|
|
for(var i=0; i<regs.length; i++) {
|
|
|
// here we handle non magic_modes
|
|
|
if(first_line.match(regs[i]) !== null) {
|
|
|
if(current_mode == mode){
|
|
|
return;
|
|
|
}
|
|
|
if (mode.search('magic_') !== 0) {
|
|
|
this.code_mirror.setOption('mode', mode);
|
|
|
CodeMirror.autoLoadMode(this.code_mirror, mode);
|
|
|
return;
|
|
|
}
|
|
|
var open = modes[mode].open || "%%";
|
|
|
var close = modes[mode].close || "%%end";
|
|
|
var mmode = mode;
|
|
|
mode = mmode.substr(6);
|
|
|
if(current_mode == mode){
|
|
|
return;
|
|
|
}
|
|
|
CodeMirror.autoLoadMode(this.code_mirror, mode);
|
|
|
// create on the fly a mode that swhitch between
|
|
|
// plain/text and smth else otherwise `%%` is
|
|
|
// source of some highlight issues.
|
|
|
// we use patchedGetMode to circumvent a bug in CM
|
|
|
CodeMirror.defineMode(mmode , function(config) {
|
|
|
return CodeMirror.multiplexingMode(
|
|
|
CodeMirror.patchedGetMode(config, 'text/plain'),
|
|
|
// always set someting on close
|
|
|
{open: open, close: close,
|
|
|
mode: CodeMirror.patchedGetMode(config, mode),
|
|
|
delimStyle: "delimit"
|
|
|
}
|
|
|
);
|
|
|
});
|
|
|
this.code_mirror.setOption('mode', mmode);
|
|
|
return;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
// fallback on default
|
|
|
var default_mode;
|
|
|
try {
|
|
|
default_mode = this._options.cm_config.mode;
|
|
|
} catch(e) {
|
|
|
default_mode = 'text/plain';
|
|
|
}
|
|
|
if( current_mode === default_mode){
|
|
|
return;
|
|
|
}
|
|
|
this.code_mirror.setOption('mode', default_mode);
|
|
|
};
|
|
|
|
|
|
// Backwards compatibility.
|
|
|
IPython.Cell = Cell;
|
|
|
|
|
|
return {'Cell': Cell};
|
|
|
});
|
|
|
|
