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// Copyright (c) IPython Development Team.
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// Distributed under the terms of the Modified BSD License.
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/**
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* @module notebook
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*/
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define(function (require) {
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"use strict";
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var IPython = require('base/js/namespace');
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var $ = require('jquery');
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var utils = require('base/js/utils');
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var dialog = require('base/js/dialog');
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var cellmod = require('notebook/js/cell');
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var textcell = require('notebook/js/textcell');
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var codecell = require('notebook/js/codecell');
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var moment = require('moment');
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var configmod = require('services/config');
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var session = require('services/sessions/session');
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var celltoolbar = require('notebook/js/celltoolbar');
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var marked = require('components/marked/lib/marked');
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var CodeMirror = require('codemirror/lib/codemirror');
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var runMode = require('codemirror/addon/runmode/runmode');
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var mathjaxutils = require('notebook/js/mathjaxutils');
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var keyboard = require('base/js/keyboard');
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var tooltip = require('notebook/js/tooltip');
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var default_celltoolbar = require('notebook/js/celltoolbarpresets/default');
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var rawcell_celltoolbar = require('notebook/js/celltoolbarpresets/rawcell');
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var slideshow_celltoolbar = require('notebook/js/celltoolbarpresets/slideshow');
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var scrollmanager = require('notebook/js/scrollmanager');
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/**
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* Contains and manages cells.
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*
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* @class Notebook
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* @param {string} selector
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* @param {object} options - Dictionary of keyword arguments.
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* @param {jQuery} options.events - selector of Events
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* @param {KeyboardManager} options.keyboard_manager
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* @param {Contents} options.contents
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* @param {SaveWidget} options.save_widget
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* @param {object} options.config
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* @param {string} options.base_url
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* @param {string} options.notebook_path
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* @param {string} options.notebook_name
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*/
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var Notebook = function (selector, options) {
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this.config = options.config;
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this.class_config = new configmod.ConfigWithDefaults(this.config,
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Notebook.options_default, 'Notebook');
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this.base_url = options.base_url;
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this.notebook_path = options.notebook_path;
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this.notebook_name = options.notebook_name;
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this.events = options.events;
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this.keyboard_manager = options.keyboard_manager;
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this.contents = options.contents;
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this.save_widget = options.save_widget;
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this.tooltip = new tooltip.Tooltip(this.events);
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this.ws_url = options.ws_url;
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this._session_starting = false;
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this.last_modified = null;
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// Create default scroll manager.
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this.scroll_manager = new scrollmanager.ScrollManager(this);
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// TODO: This code smells (and the other `= this` line a couple lines down)
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// We need a better way to deal with circular instance references.
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this.keyboard_manager.notebook = this;
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this.save_widget.notebook = this;
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mathjaxutils.init();
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if (marked) {
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marked.setOptions({
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gfm : true,
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tables: true,
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// FIXME: probably want central config for CodeMirror theme when we have js config
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langPrefix: "cm-s-ipython language-",
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highlight: function(code, lang, callback) {
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if (!lang) {
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// no language, no highlight
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if (callback) {
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callback(null, code);
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return;
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} else {
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return code;
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}
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}
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utils.requireCodeMirrorMode(lang, function (spec) {
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var el = document.createElement("div");
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var mode = CodeMirror.getMode({}, spec);
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if (!mode) {
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console.log("No CodeMirror mode: " + lang);
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callback(null, code);
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return;
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}
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try {
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CodeMirror.runMode(code, spec, el);
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callback(null, el.innerHTML);
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} catch (err) {
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console.log("Failed to highlight " + lang + " code", err);
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callback(err, code);
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}
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}, function (err) {
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console.log("No CodeMirror mode: " + lang);
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callback(err, code);
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});
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}
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});
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}
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this.element = $(selector);
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this.element.scroll();
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this.element.data("notebook", this);
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this.next_prompt_number = 1;
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this.session = null;
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this.kernel = null;
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this.clipboard = null;
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this.undelete_backup = null;
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this.undelete_index = null;
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this.undelete_below = false;
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this.paste_enabled = false;
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this.writable = false;
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// It is important to start out in command mode to match the intial mode
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// of the KeyboardManager.
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this.mode = 'command';
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this.set_dirty(false);
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this.metadata = {};
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this._checkpoint_after_save = false;
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this.last_checkpoint = null;
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this.checkpoints = [];
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this.autosave_interval = 0;
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this.autosave_timer = null;
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// autosave *at most* every two minutes
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this.minimum_autosave_interval = 120000;
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this.notebook_name_blacklist_re = /[\/\\:]/;
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this.nbformat = 4; // Increment this when changing the nbformat
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this.nbformat_minor = this.current_nbformat_minor = 0; // Increment this when changing the nbformat
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this.codemirror_mode = 'ipython';
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this.create_elements();
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this.bind_events();
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this.kernel_selector = null;
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this.dirty = null;
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this.trusted = null;
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this._fully_loaded = false;
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// Trigger cell toolbar registration.
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default_celltoolbar.register(this);
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rawcell_celltoolbar.register(this);
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slideshow_celltoolbar.register(this);
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// prevent assign to miss-typed properties.
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Object.seal(this);
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};
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Notebook.options_default = {
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// can be any cell type, or the special values of
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// 'above', 'below', or 'selected' to get the value from another cell.
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default_cell_type: 'code'
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};
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/**
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* Create an HTML and CSS representation of the notebook.
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*/
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Notebook.prototype.create_elements = function () {
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var that = this;
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this.element.attr('tabindex','-1');
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this.container = $("<div/>").addClass("container").attr("id", "notebook-container");
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// We add this end_space div to the end of the notebook div to:
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// i) provide a margin between the last cell and the end of the notebook
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// ii) to prevent the div from scrolling up when the last cell is being
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// edited, but is too low on the page, which browsers will do automatically.
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var end_space = $('<div/>').addClass('end_space');
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end_space.dblclick(function (e) {
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var ncells = that.ncells();
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that.insert_cell_below('code',ncells-1);
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});
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this.element.append(this.container);
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this.container.after(end_space);
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};
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/**
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* Bind JavaScript events: key presses and custom IPython events.
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*/
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Notebook.prototype.bind_events = function () {
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var that = this;
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this.events.on('set_next_input.Notebook', function (event, data) {
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if (data.replace) {
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data.cell.set_text(data.text);
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data.cell.clear_output();
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} else {
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var index = that.find_cell_index(data.cell);
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var new_cell = that.insert_cell_below('code',index);
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new_cell.set_text(data.text);
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}
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that.dirty = true;
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});
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this.events.on('unrecognized_cell.Cell', function () {
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that.warn_nbformat_minor();
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});
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this.events.on('unrecognized_output.OutputArea', function () {
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that.warn_nbformat_minor();
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});
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this.events.on('set_dirty.Notebook', function (event, data) {
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that.dirty = data.value;
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});
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this.events.on('trust_changed.Notebook', function (event, trusted) {
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that.trusted = trusted;
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});
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this.events.on('select.Cell', function (event, data) {
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var index = that.find_cell_index(data.cell);
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that.select(index);
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});
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this.events.on('edit_mode.Cell', function (event, data) {
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that.handle_edit_mode(data.cell);
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});
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this.events.on('command_mode.Cell', function (event, data) {
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that.handle_command_mode(data.cell);
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});
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this.events.on('spec_changed.Kernel', function(event, data) {
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that.metadata.kernelspec = {
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name: data.name,
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display_name: data.spec.display_name,
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language: data.spec.language,
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};
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// start session if the current session isn't already correct
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if (!(that.session && that.session.kernel && that.session.kernel.name === data.name)) {
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that.start_session(data.name);
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}
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});
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this.events.on('kernel_ready.Kernel', function(event, data) {
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var kinfo = data.kernel.info_reply;
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if (!kinfo.language_info) {
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delete that.metadata.language_info;
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return;
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}
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var langinfo = kinfo.language_info;
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that.metadata.language_info = langinfo;
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// Mode 'null' should be plain, unhighlighted text.
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var cm_mode = langinfo.codemirror_mode || langinfo.name || 'null';
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that.set_codemirror_mode(cm_mode);
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});
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var collapse_time = function (time) {
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var app_height = $('#ipython-main-app').height(); // content height
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var splitter_height = $('div#pager_splitter').outerHeight(true);
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var new_height = app_height - splitter_height;
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that.element.animate({height : new_height + 'px'}, time);
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};
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this.element.bind('collapse_pager', function (event, extrap) {
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var time = (extrap !== undefined) ? ((extrap.duration !== undefined ) ? extrap.duration : 'fast') : 'fast';
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collapse_time(time);
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});
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var expand_time = function (time) {
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var app_height = $('#ipython-main-app').height(); // content height
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var splitter_height = $('div#pager_splitter').outerHeight(true);
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var pager_height = $('div#pager').outerHeight(true);
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var new_height = app_height - pager_height - splitter_height;
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that.element.animate({height : new_height + 'px'}, time);
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};
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this.element.bind('expand_pager', function (event, extrap) {
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var time = (extrap !== undefined) ? ((extrap.duration !== undefined ) ? extrap.duration : 'fast') : 'fast';
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expand_time(time);
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});
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// Firefox 22 broke $(window).on("beforeunload")
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// I'm not sure why or how.
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window.onbeforeunload = function (e) {
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// TODO: Make killing the kernel configurable.
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var kill_kernel = false;
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if (kill_kernel) {
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that.session.delete();
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}
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// if we are autosaving, trigger an autosave on nav-away.
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// still warn, because if we don't the autosave may fail.
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if (that.dirty) {
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if ( that.autosave_interval ) {
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// schedule autosave in a timeout
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// this gives you a chance to forcefully discard changes
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// by reloading the page if you *really* want to.
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// the timer doesn't start until you *dismiss* the dialog.
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setTimeout(function () {
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if (that.dirty) {
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that.save_notebook();
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}
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}, 1000);
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return "Autosave in progress, latest changes may be lost.";
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} else {
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return "Unsaved changes will be lost.";
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}
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}
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// IE treats null as a string. Instead just return which will avoid the dialog.
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return;
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};
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};
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/**
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* Trigger a warning dialog about missing functionality from newer minor versions
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*/
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Notebook.prototype.warn_nbformat_minor = function (event) {
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var v = 'v' + this.nbformat + '.';
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var orig_vs = v + this.nbformat_minor;
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var this_vs = v + this.current_nbformat_minor;
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var msg = "This notebook is version " + orig_vs + ", but we only fully support up to " +
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this_vs + ". You can still work with this notebook, but cell and output types " +
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"introduced in later notebook versions will not be available.";
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dialog.modal({
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notebook: this,
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keyboard_manager: this.keyboard_manager,
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title : "Newer Notebook",
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body : msg,
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buttons : {
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OK : {
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"class" : "btn-danger"
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}
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}
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});
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};
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/**
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* Set the dirty flag, and trigger the set_dirty.Notebook event
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*/
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Notebook.prototype.set_dirty = function (value) {
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if (value === undefined) {
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value = true;
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}
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if (this.dirty === value) {
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return;
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}
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this.events.trigger('set_dirty.Notebook', {value: value});
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};
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/**
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* Scroll the top of the page to a given cell.
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*
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* @param {integer} index - An index of the cell to view
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* @param {integer} time - Animation time in milliseconds
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* @return {integer} Pixel offset from the top of the container
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*/
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Notebook.prototype.scroll_to_cell = function (index, time) {
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return this.scroll_cell_percent(index, 0, time);
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};
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/**
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* Scroll the middle of the page to a given cell.
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*
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* @param {integer} index - An index of the cell to view
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* @param {integer} percent - 0-100, the location on the screen to scroll.
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* 0 is the top, 100 is the bottom.
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* @param {integer} time - Animation time in milliseconds
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* @return {integer} Pixel offset from the top of the container
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*/
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Notebook.prototype.scroll_cell_percent = function (index, percent, time) {
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var cells = this.get_cells();
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time = time || 0;
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percent = percent || 0;
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index = Math.min(cells.length-1,index);
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index = Math.max(0 ,index);
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var sme = this.scroll_manager.element;
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var h = sme.height();
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var st = sme.scrollTop();
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var t = sme.offset().top;
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var ct = cells[index].element.offset().top;
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var scroll_value = st + ct - (t + .01 * percent * h);
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this.scroll_manager.element.animate({scrollTop:scroll_value}, time);
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return scroll_value;
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};
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/**
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* Scroll to the bottom of the page.
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*/
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Notebook.prototype.scroll_to_bottom = function () {
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this.scroll_manager.element.animate({scrollTop:this.element.get(0).scrollHeight}, 0);
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};
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/**
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* Scroll to the top of the page.
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*/
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Notebook.prototype.scroll_to_top = function () {
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this.scroll_manager.element.animate({scrollTop:0}, 0);
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};
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// Edit Notebook metadata
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/**
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* Display a dialog that allows the user to edit the Notebook's metadata.
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*/
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Notebook.prototype.edit_metadata = function () {
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var that = this;
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dialog.edit_metadata({
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md: this.metadata,
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callback: function (md) {
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that.metadata = md;
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},
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name: 'Notebook',
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notebook: this,
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keyboard_manager: this.keyboard_manager});
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};
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// Cell indexing, retrieval, etc.
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/**
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* Get all cell elements in the notebook.
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*
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* @return {jQuery} A selector of all cell elements
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*/
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Notebook.prototype.get_cell_elements = function () {
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return this.container.find(".cell").not('.cell .cell');
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};
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/**
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* Get a particular cell element.
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*
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* @param {integer} index An index of a cell to select
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|
|
* @return {jQuery} A selector of the given cell.
|
|
|
*/
|
|
|
Notebook.prototype.get_cell_element = function (index) {
|
|
|
var result = null;
|
|
|
var e = this.get_cell_elements().eq(index);
|
|
|
if (e.length !== 0) {
|
|
|
result = e;
|
|
|
}
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Try to get a particular cell by msg_id.
|
|
|
*
|
|
|
* @param {string} msg_id A message UUID
|
|
|
* @return {Cell} Cell or null if no cell was found.
|
|
|
*/
|
|
|
Notebook.prototype.get_msg_cell = function (msg_id) {
|
|
|
return codecell.CodeCell.msg_cells[msg_id] || null;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Count the cells in this notebook.
|
|
|
*
|
|
|
* @return {integer} The number of cells in this notebook
|
|
|
*/
|
|
|
Notebook.prototype.ncells = function () {
|
|
|
return this.get_cell_elements().length;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Get all Cell objects in this notebook.
|
|
|
*
|
|
|
* @return {Array} This notebook's Cell objects
|
|
|
*/
|
|
|
Notebook.prototype.get_cells = function () {
|
|
|
// TODO: we are often calling cells as cells()[i], which we should optimize
|
|
|
// to cells(i) or a new method.
|
|
|
return this.get_cell_elements().toArray().map(function (e) {
|
|
|
return $(e).data("cell");
|
|
|
});
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Get a Cell objects from this notebook.
|
|
|
*
|
|
|
* @param {integer} index - An index of a cell to retrieve
|
|
|
* @return {Cell} Cell or null if no cell was found.
|
|
|
*/
|
|
|
Notebook.prototype.get_cell = function (index) {
|
|
|
var result = null;
|
|
|
var ce = this.get_cell_element(index);
|
|
|
if (ce !== null) {
|
|
|
result = ce.data('cell');
|
|
|
}
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Get the cell below a given cell.
|
|
|
*
|
|
|
* @param {Cell} cell
|
|
|
* @return {Cell} the next cell or null if no cell was found.
|
|
|
*/
|
|
|
Notebook.prototype.get_next_cell = function (cell) {
|
|
|
var result = null;
|
|
|
var index = this.find_cell_index(cell);
|
|
|
if (this.is_valid_cell_index(index+1)) {
|
|
|
result = this.get_cell(index+1);
|
|
|
}
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Get the cell above a given cell.
|
|
|
*
|
|
|
* @param {Cell} cell
|
|
|
* @return {Cell} The previous cell or null if no cell was found.
|
|
|
*/
|
|
|
Notebook.prototype.get_prev_cell = function (cell) {
|
|
|
var result = null;
|
|
|
var index = this.find_cell_index(cell);
|
|
|
if (index !== null && index > 0) {
|
|
|
result = this.get_cell(index-1);
|
|
|
}
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Get the numeric index of a given cell.
|
|
|
*
|
|
|
* @param {Cell} cell
|
|
|
* @return {integer} The cell's numeric index or null if no cell was found.
|
|
|
*/
|
|
|
Notebook.prototype.find_cell_index = function (cell) {
|
|
|
var result = null;
|
|
|
this.get_cell_elements().filter(function (index) {
|
|
|
if ($(this).data("cell") === cell) {
|
|
|
result = index;
|
|
|
}
|
|
|
});
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Return given index if defined, or the selected index if not.
|
|
|
*
|
|
|
* @param {integer} [index] - A cell's index
|
|
|
* @return {integer} cell index
|
|
|
*/
|
|
|
Notebook.prototype.index_or_selected = function (index) {
|
|
|
var i;
|
|
|
if (index === undefined || index === null) {
|
|
|
i = this.get_selected_index();
|
|
|
if (i === null) {
|
|
|
i = 0;
|
|
|
}
|
|
|
} else {
|
|
|
i = index;
|
|
|
}
|
|
|
return i;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Get the currently selected cell.
|
|
|
*
|
|
|
* @return {Cell} The selected cell
|
|
|
*/
|
|
|
Notebook.prototype.get_selected_cell = function () {
|
|
|
var index = this.get_selected_index();
|
|
|
return this.get_cell(index);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Check whether a cell index is valid.
|
|
|
*
|
|
|
* @param {integer} index - A cell index
|
|
|
* @return True if the index is valid, false otherwise
|
|
|
*/
|
|
|
Notebook.prototype.is_valid_cell_index = function (index) {
|
|
|
if (index !== null && index >= 0 && index < this.ncells()) {
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Get the index of the currently selected cell.
|
|
|
*
|
|
|
* @return {integer} The selected cell's numeric index
|
|
|
*/
|
|
|
Notebook.prototype.get_selected_index = function () {
|
|
|
var result = null;
|
|
|
this.get_cell_elements().filter(function (index) {
|
|
|
if ($(this).data("cell").selected === true) {
|
|
|
result = index;
|
|
|
}
|
|
|
});
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
|
|
|
// Cell selection.
|
|
|
|
|
|
/**
|
|
|
* Programmatically select a cell.
|
|
|
*
|
|
|
* @param {integer} index - A cell's index
|
|
|
* @return {Notebook} This notebook
|
|
|
*/
|
|
|
Notebook.prototype.select = function (index) {
|
|
|
if (this.is_valid_cell_index(index)) {
|
|
|
var sindex = this.get_selected_index();
|
|
|
if (sindex !== null && index !== sindex) {
|
|
|
// If we are about to select a different cell, make sure we are
|
|
|
// first in command mode.
|
|
|
if (this.mode !== 'command') {
|
|
|
this.command_mode();
|
|
|
}
|
|
|
this.get_cell(sindex).unselect();
|
|
|
}
|
|
|
var cell = this.get_cell(index);
|
|
|
cell.select();
|
|
|
if (cell.cell_type === 'heading') {
|
|
|
this.events.trigger('selected_cell_type_changed.Notebook',
|
|
|
{'cell_type':cell.cell_type,level:cell.level}
|
|
|
);
|
|
|
} else {
|
|
|
this.events.trigger('selected_cell_type_changed.Notebook',
|
|
|
{'cell_type':cell.cell_type}
|
|
|
);
|
|
|
}
|
|
|
}
|
|
|
return this;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Programmatically select the next cell.
|
|
|
*
|
|
|
* @return {Notebook} This notebook
|
|
|
*/
|
|
|
Notebook.prototype.select_next = function () {
|
|
|
var index = this.get_selected_index();
|
|
|
this.select(index+1);
|
|
|
return this;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Programmatically select the previous cell.
|
|
|
*
|
|
|
* @return {Notebook} This notebook
|
|
|
*/
|
|
|
Notebook.prototype.select_prev = function () {
|
|
|
var index = this.get_selected_index();
|
|
|
this.select(index-1);
|
|
|
return this;
|
|
|
};
|
|
|
|
|
|
|
|
|
// Edit/Command mode
|
|
|
|
|
|
/**
|
|
|
* Gets the index of the cell that is in edit mode.
|
|
|
*
|
|
|
* @return {integer} index
|
|
|
*/
|
|
|
Notebook.prototype.get_edit_index = function () {
|
|
|
var result = null;
|
|
|
this.get_cell_elements().filter(function (index) {
|
|
|
if ($(this).data("cell").mode === 'edit') {
|
|
|
result = index;
|
|
|
}
|
|
|
});
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Handle when a a cell blurs and the notebook should enter command mode.
|
|
|
*
|
|
|
* @param {Cell} [cell] - Cell to enter command mode on.
|
|
|
*/
|
|
|
Notebook.prototype.handle_command_mode = function (cell) {
|
|
|
if (this.mode !== 'command') {
|
|
|
cell.command_mode();
|
|
|
this.mode = 'command';
|
|
|
this.events.trigger('command_mode.Notebook');
|
|
|
this.keyboard_manager.command_mode();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Make the notebook enter command mode.
|
|
|
*/
|
|
|
Notebook.prototype.command_mode = function () {
|
|
|
var cell = this.get_cell(this.get_edit_index());
|
|
|
if (cell && this.mode !== 'command') {
|
|
|
// We don't call cell.command_mode, but rather blur the CM editor
|
|
|
// which will trigger the call to handle_command_mode.
|
|
|
cell.code_mirror.getInputField().blur();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Handle when a cell fires it's edit_mode event.
|
|
|
*
|
|
|
* @param {Cell} [cell] Cell to enter edit mode on.
|
|
|
*/
|
|
|
Notebook.prototype.handle_edit_mode = function (cell) {
|
|
|
if (cell && this.mode !== 'edit') {
|
|
|
cell.edit_mode();
|
|
|
this.mode = 'edit';
|
|
|
this.events.trigger('edit_mode.Notebook');
|
|
|
this.keyboard_manager.edit_mode();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Make a cell enter edit mode.
|
|
|
*/
|
|
|
Notebook.prototype.edit_mode = function () {
|
|
|
var cell = this.get_selected_cell();
|
|
|
if (cell && this.mode !== 'edit') {
|
|
|
cell.unrender();
|
|
|
cell.focus_editor();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Ensure either cell, or codemirror is focused. Is none
|
|
|
* is focused, focus the cell.
|
|
|
*/
|
|
|
Notebook.prototype.ensure_focused = function(){
|
|
|
var cell = this.get_selected_cell();
|
|
|
if (cell === null) {return;} // No cell is selected
|
|
|
cell.ensure_focused();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Focus the currently selected cell.
|
|
|
*/
|
|
|
Notebook.prototype.focus_cell = function () {
|
|
|
var cell = this.get_selected_cell();
|
|
|
if (cell === null) {return;} // No cell is selected
|
|
|
cell.focus_cell();
|
|
|
};
|
|
|
|
|
|
// Cell movement
|
|
|
|
|
|
/**
|
|
|
* Move given (or selected) cell up and select it.
|
|
|
*
|
|
|
* @param {integer} [index] - cell index
|
|
|
* @return {Notebook} This notebook
|
|
|
*/
|
|
|
Notebook.prototype.move_cell_up = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
if (this.is_valid_cell_index(i) && i > 0) {
|
|
|
var pivot = this.get_cell_element(i-1);
|
|
|
var tomove = this.get_cell_element(i);
|
|
|
if (pivot !== null && tomove !== null) {
|
|
|
tomove.detach();
|
|
|
pivot.before(tomove);
|
|
|
this.select(i-1);
|
|
|
var cell = this.get_selected_cell();
|
|
|
cell.focus_cell();
|
|
|
}
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
return this;
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Move given (or selected) cell down and select it.
|
|
|
*
|
|
|
* @param {integer} [index] - cell index
|
|
|
* @return {Notebook} This notebook
|
|
|
*/
|
|
|
Notebook.prototype.move_cell_down = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
if (this.is_valid_cell_index(i) && this.is_valid_cell_index(i+1)) {
|
|
|
var pivot = this.get_cell_element(i+1);
|
|
|
var tomove = this.get_cell_element(i);
|
|
|
if (pivot !== null && tomove !== null) {
|
|
|
tomove.detach();
|
|
|
pivot.after(tomove);
|
|
|
this.select(i+1);
|
|
|
var cell = this.get_selected_cell();
|
|
|
cell.focus_cell();
|
|
|
}
|
|
|
}
|
|
|
this.set_dirty();
|
|
|
return this;
|
|
|
};
|
|
|
|
|
|
|
|
|
// Insertion, deletion.
|
|
|
|
|
|
/**
|
|
|
* Delete a cell from the notebook without any precautions
|
|
|
* Needed to reload checkpoints and other things like that.
|
|
|
*
|
|
|
* @param {integer} [index] - cell's numeric index
|
|
|
* @return {Notebook} This notebook
|
|
|
*/
|
|
|
Notebook.prototype._unsafe_delete_cell = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
|
|
|
$('#undelete_cell').addClass('disabled');
|
|
|
if (this.is_valid_cell_index(i)) {
|
|
|
var old_ncells = this.ncells();
|
|
|
var ce = this.get_cell_element(i);
|
|
|
ce.remove();
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
return this;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Delete a cell from the notebook.
|
|
|
*
|
|
|
* @param {integer} [index] - cell's numeric index
|
|
|
* @return {Notebook} This notebook
|
|
|
*/
|
|
|
Notebook.prototype.delete_cell = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
if (!cell.is_deletable()) {
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
this.undelete_backup = cell.toJSON();
|
|
|
$('#undelete_cell').removeClass('disabled');
|
|
|
if (this.is_valid_cell_index(i)) {
|
|
|
var old_ncells = this.ncells();
|
|
|
var ce = this.get_cell_element(i);
|
|
|
ce.remove();
|
|
|
if (i === 0) {
|
|
|
// Always make sure we have at least one cell.
|
|
|
if (old_ncells === 1) {
|
|
|
this.insert_cell_below('code');
|
|
|
}
|
|
|
this.select(0);
|
|
|
this.undelete_index = 0;
|
|
|
this.undelete_below = false;
|
|
|
} else if (i === old_ncells-1 && i !== 0) {
|
|
|
this.select(i-1);
|
|
|
this.undelete_index = i - 1;
|
|
|
this.undelete_below = true;
|
|
|
} else {
|
|
|
this.select(i);
|
|
|
this.undelete_index = i;
|
|
|
this.undelete_below = false;
|
|
|
}
|
|
|
this.events.trigger('delete.Cell', {'cell': cell, 'index': i});
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
return this;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Restore the most recently deleted cell.
|
|
|
*/
|
|
|
Notebook.prototype.undelete_cell = function() {
|
|
|
if (this.undelete_backup !== null && this.undelete_index !== null) {
|
|
|
var current_index = this.get_selected_index();
|
|
|
if (this.undelete_index < current_index) {
|
|
|
current_index = current_index + 1;
|
|
|
}
|
|
|
if (this.undelete_index >= this.ncells()) {
|
|
|
this.select(this.ncells() - 1);
|
|
|
}
|
|
|
else {
|
|
|
this.select(this.undelete_index);
|
|
|
}
|
|
|
var cell_data = this.undelete_backup;
|
|
|
var new_cell = null;
|
|
|
if (this.undelete_below) {
|
|
|
new_cell = this.insert_cell_below(cell_data.cell_type);
|
|
|
} else {
|
|
|
new_cell = this.insert_cell_above(cell_data.cell_type);
|
|
|
}
|
|
|
new_cell.fromJSON(cell_data);
|
|
|
if (this.undelete_below) {
|
|
|
this.select(current_index+1);
|
|
|
} else {
|
|
|
this.select(current_index);
|
|
|
}
|
|
|
this.undelete_backup = null;
|
|
|
this.undelete_index = null;
|
|
|
}
|
|
|
$('#undelete_cell').addClass('disabled');
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Insert a cell so that after insertion the cell is at given index.
|
|
|
*
|
|
|
* If cell type is not provided, it will default to the type of the
|
|
|
* currently active cell.
|
|
|
*
|
|
|
* Similar to insert_above, but index parameter is mandatory.
|
|
|
*
|
|
|
* Index will be brought back into the accessible range [0,n].
|
|
|
*
|
|
|
* @param {string} [type] - in ['code','markdown', 'raw'], defaults to 'code'
|
|
|
* @param {integer} [index] - a valid index where to insert cell
|
|
|
* @return {Cell|null} created cell or null
|
|
|
*/
|
|
|
Notebook.prototype.insert_cell_at_index = function(type, index){
|
|
|
|
|
|
var ncells = this.ncells();
|
|
|
index = Math.min(index, ncells);
|
|
|
index = Math.max(index, 0);
|
|
|
var cell = null;
|
|
|
type = type || this.class_config.get_sync('default_cell_type');
|
|
|
if (type === 'above') {
|
|
|
if (index > 0) {
|
|
|
type = this.get_cell(index-1).cell_type;
|
|
|
} else {
|
|
|
type = 'code';
|
|
|
}
|
|
|
} else if (type === 'below') {
|
|
|
if (index < ncells) {
|
|
|
type = this.get_cell(index).cell_type;
|
|
|
} else {
|
|
|
type = 'code';
|
|
|
}
|
|
|
} else if (type === 'selected') {
|
|
|
type = this.get_selected_cell().cell_type;
|
|
|
}
|
|
|
|
|
|
if (ncells === 0 || this.is_valid_cell_index(index) || index === ncells) {
|
|
|
var cell_options = {
|
|
|
events: this.events,
|
|
|
config: this.config,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
notebook: this,
|
|
|
tooltip: this.tooltip
|
|
|
};
|
|
|
switch(type) {
|
|
|
case 'code':
|
|
|
cell = new codecell.CodeCell(this.kernel, cell_options);
|
|
|
cell.set_input_prompt();
|
|
|
break;
|
|
|
case 'markdown':
|
|
|
cell = new textcell.MarkdownCell(cell_options);
|
|
|
break;
|
|
|
case 'raw':
|
|
|
cell = new textcell.RawCell(cell_options);
|
|
|
break;
|
|
|
default:
|
|
|
console.log("Unrecognized cell type: ", type, cellmod);
|
|
|
cell = new cellmod.UnrecognizedCell(cell_options);
|
|
|
}
|
|
|
|
|
|
if(this._insert_element_at_index(cell.element,index)) {
|
|
|
cell.render();
|
|
|
this.events.trigger('create.Cell', {'cell': cell, 'index': index});
|
|
|
cell.refresh();
|
|
|
// We used to select the cell after we refresh it, but there
|
|
|
// are now cases were this method is called where select is
|
|
|
// not appropriate. The selection logic should be handled by the
|
|
|
// caller of the the top level insert_cell methods.
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
}
|
|
|
return cell;
|
|
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Insert an element at given cell index.
|
|
|
*
|
|
|
* @param {HTMLElement} element - a cell element
|
|
|
* @param {integer} [index] - a valid index where to inser cell
|
|
|
* @returns {boolean} success
|
|
|
*/
|
|
|
Notebook.prototype._insert_element_at_index = function(element, index){
|
|
|
if (element === undefined){
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
var ncells = this.ncells();
|
|
|
|
|
|
if (ncells === 0) {
|
|
|
// special case append if empty
|
|
|
this.container.append(element);
|
|
|
} else if ( ncells === index ) {
|
|
|
// special case append it the end, but not empty
|
|
|
this.get_cell_element(index-1).after(element);
|
|
|
} else if (this.is_valid_cell_index(index)) {
|
|
|
// otherwise always somewhere to append to
|
|
|
this.get_cell_element(index).before(element);
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
if (this.undelete_index !== null && index <= this.undelete_index) {
|
|
|
this.undelete_index = this.undelete_index + 1;
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
return true;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Insert a cell of given type above given index, or at top
|
|
|
* of notebook if index smaller than 0.
|
|
|
*
|
|
|
* @param {string} [type] - cell type
|
|
|
* @param {integer} [index] - defaults to the currently selected cell
|
|
|
* @return {Cell|null} handle to created cell or null
|
|
|
*/
|
|
|
Notebook.prototype.insert_cell_above = function (type, index) {
|
|
|
index = this.index_or_selected(index);
|
|
|
return this.insert_cell_at_index(type, index);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Insert a cell of given type below given index, or at bottom
|
|
|
* of notebook if index greater than number of cells
|
|
|
*
|
|
|
* @param {string} [type] - cell type
|
|
|
* @param {integer} [index] - defaults to the currently selected cell
|
|
|
* @return {Cell|null} handle to created cell or null
|
|
|
*/
|
|
|
Notebook.prototype.insert_cell_below = function (type, index) {
|
|
|
index = this.index_or_selected(index);
|
|
|
return this.insert_cell_at_index(type, index+1);
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Insert cell at end of notebook
|
|
|
*
|
|
|
* @param {string} type - cell type
|
|
|
* @return {Cell|null} handle to created cell or null
|
|
|
*/
|
|
|
Notebook.prototype.insert_cell_at_bottom = function (type){
|
|
|
var len = this.ncells();
|
|
|
return this.insert_cell_below(type,len-1);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Turn a cell into a code cell.
|
|
|
*
|
|
|
* @param {integer} [index] - cell index
|
|
|
*/
|
|
|
Notebook.prototype.to_code = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
if (this.is_valid_cell_index(i)) {
|
|
|
var source_cell = this.get_cell(i);
|
|
|
if (!(source_cell instanceof codecell.CodeCell)) {
|
|
|
var target_cell = this.insert_cell_below('code',i);
|
|
|
var text = source_cell.get_text();
|
|
|
if (text === source_cell.placeholder) {
|
|
|
text = '';
|
|
|
}
|
|
|
//metadata
|
|
|
target_cell.metadata = source_cell.metadata;
|
|
|
|
|
|
target_cell.set_text(text);
|
|
|
// make this value the starting point, so that we can only undo
|
|
|
// to this state, instead of a blank cell
|
|
|
target_cell.code_mirror.clearHistory();
|
|
|
source_cell.element.remove();
|
|
|
this.select(i);
|
|
|
var cursor = source_cell.code_mirror.getCursor();
|
|
|
target_cell.code_mirror.setCursor(cursor);
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Turn a cell into a Markdown cell.
|
|
|
*
|
|
|
* @param {integer} [index] - cell index
|
|
|
*/
|
|
|
Notebook.prototype.to_markdown = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
if (this.is_valid_cell_index(i)) {
|
|
|
var source_cell = this.get_cell(i);
|
|
|
|
|
|
if (!(source_cell instanceof textcell.MarkdownCell)) {
|
|
|
var target_cell = this.insert_cell_below('markdown',i);
|
|
|
var text = source_cell.get_text();
|
|
|
|
|
|
if (text === source_cell.placeholder) {
|
|
|
text = '';
|
|
|
}
|
|
|
// metadata
|
|
|
target_cell.metadata = source_cell.metadata;
|
|
|
// We must show the editor before setting its contents
|
|
|
target_cell.unrender();
|
|
|
target_cell.set_text(text);
|
|
|
// make this value the starting point, so that we can only undo
|
|
|
// to this state, instead of a blank cell
|
|
|
target_cell.code_mirror.clearHistory();
|
|
|
source_cell.element.remove();
|
|
|
this.select(i);
|
|
|
if ((source_cell instanceof textcell.TextCell) && source_cell.rendered) {
|
|
|
target_cell.render();
|
|
|
}
|
|
|
var cursor = source_cell.code_mirror.getCursor();
|
|
|
target_cell.code_mirror.setCursor(cursor);
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Turn a cell into a raw text cell.
|
|
|
*
|
|
|
* @param {integer} [index] - cell index
|
|
|
*/
|
|
|
Notebook.prototype.to_raw = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
if (this.is_valid_cell_index(i)) {
|
|
|
var target_cell = null;
|
|
|
var source_cell = this.get_cell(i);
|
|
|
|
|
|
if (!(source_cell instanceof textcell.RawCell)) {
|
|
|
target_cell = this.insert_cell_below('raw',i);
|
|
|
var text = source_cell.get_text();
|
|
|
if (text === source_cell.placeholder) {
|
|
|
text = '';
|
|
|
}
|
|
|
//metadata
|
|
|
target_cell.metadata = source_cell.metadata;
|
|
|
// We must show the editor before setting its contents
|
|
|
target_cell.unrender();
|
|
|
target_cell.set_text(text);
|
|
|
// make this value the starting point, so that we can only undo
|
|
|
// to this state, instead of a blank cell
|
|
|
target_cell.code_mirror.clearHistory();
|
|
|
source_cell.element.remove();
|
|
|
this.select(i);
|
|
|
var cursor = source_cell.code_mirror.getCursor();
|
|
|
target_cell.code_mirror.setCursor(cursor);
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Warn about heading cell support removal.
|
|
|
*/
|
|
|
Notebook.prototype._warn_heading = function () {
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title : "Use markdown headings",
|
|
|
body : $("<p/>").text(
|
|
|
'IPython no longer uses special heading cells. ' +
|
|
|
'Instead, write your headings in Markdown cells using # characters:'
|
|
|
).append($('<pre/>').text(
|
|
|
'## This is a level 2 heading'
|
|
|
)),
|
|
|
buttons : {
|
|
|
"OK" : {}
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Turn a cell into a heading containing markdown cell.
|
|
|
*
|
|
|
* @param {integer} [index] - cell index
|
|
|
* @param {integer} [level] - heading level (e.g., 1 for h1)
|
|
|
*/
|
|
|
Notebook.prototype.to_heading = function (index, level) {
|
|
|
this.to_markdown(index);
|
|
|
level = level || 1;
|
|
|
var i = this.index_or_selected(index);
|
|
|
if (this.is_valid_cell_index(i)) {
|
|
|
var cell = this.get_cell(i);
|
|
|
cell.set_heading_level(level);
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
// Cut/Copy/Paste
|
|
|
|
|
|
/**
|
|
|
* Enable the UI elements for pasting cells.
|
|
|
*/
|
|
|
Notebook.prototype.enable_paste = function () {
|
|
|
var that = this;
|
|
|
if (!this.paste_enabled) {
|
|
|
$('#paste_cell_replace').removeClass('disabled')
|
|
|
.on('click', function () {that.paste_cell_replace();});
|
|
|
$('#paste_cell_above').removeClass('disabled')
|
|
|
.on('click', function () {that.paste_cell_above();});
|
|
|
$('#paste_cell_below').removeClass('disabled')
|
|
|
.on('click', function () {that.paste_cell_below();});
|
|
|
this.paste_enabled = true;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Disable the UI elements for pasting cells.
|
|
|
*/
|
|
|
Notebook.prototype.disable_paste = function () {
|
|
|
if (this.paste_enabled) {
|
|
|
$('#paste_cell_replace').addClass('disabled').off('click');
|
|
|
$('#paste_cell_above').addClass('disabled').off('click');
|
|
|
$('#paste_cell_below').addClass('disabled').off('click');
|
|
|
this.paste_enabled = false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Cut a cell.
|
|
|
*/
|
|
|
Notebook.prototype.cut_cell = function () {
|
|
|
this.copy_cell();
|
|
|
this.delete_cell();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Copy a cell.
|
|
|
*/
|
|
|
Notebook.prototype.copy_cell = function () {
|
|
|
var cell = this.get_selected_cell();
|
|
|
this.clipboard = cell.toJSON();
|
|
|
// remove undeletable status from the copied cell
|
|
|
if (this.clipboard.metadata.deletable !== undefined) {
|
|
|
delete this.clipboard.metadata.deletable;
|
|
|
}
|
|
|
this.enable_paste();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Replace the selected cell with the cell in the clipboard.
|
|
|
*/
|
|
|
Notebook.prototype.paste_cell_replace = function () {
|
|
|
if (this.clipboard !== null && this.paste_enabled) {
|
|
|
var cell_data = this.clipboard;
|
|
|
var new_cell = this.insert_cell_above(cell_data.cell_type);
|
|
|
new_cell.fromJSON(cell_data);
|
|
|
var old_cell = this.get_next_cell(new_cell);
|
|
|
this.delete_cell(this.find_cell_index(old_cell));
|
|
|
this.select(this.find_cell_index(new_cell));
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Paste a cell from the clipboard above the selected cell.
|
|
|
*/
|
|
|
Notebook.prototype.paste_cell_above = function () {
|
|
|
if (this.clipboard !== null && this.paste_enabled) {
|
|
|
var cell_data = this.clipboard;
|
|
|
var new_cell = this.insert_cell_above(cell_data.cell_type);
|
|
|
new_cell.fromJSON(cell_data);
|
|
|
new_cell.focus_cell();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Paste a cell from the clipboard below the selected cell.
|
|
|
*/
|
|
|
Notebook.prototype.paste_cell_below = function () {
|
|
|
if (this.clipboard !== null && this.paste_enabled) {
|
|
|
var cell_data = this.clipboard;
|
|
|
var new_cell = this.insert_cell_below(cell_data.cell_type);
|
|
|
new_cell.fromJSON(cell_data);
|
|
|
new_cell.focus_cell();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
// Split/merge
|
|
|
|
|
|
/**
|
|
|
* Split the selected cell into two cells.
|
|
|
*/
|
|
|
Notebook.prototype.split_cell = function () {
|
|
|
var cell = this.get_selected_cell();
|
|
|
if (cell.is_splittable()) {
|
|
|
var texta = cell.get_pre_cursor();
|
|
|
var textb = cell.get_post_cursor();
|
|
|
cell.set_text(textb);
|
|
|
var new_cell = this.insert_cell_above(cell.cell_type);
|
|
|
// Unrender the new cell so we can call set_text.
|
|
|
new_cell.unrender();
|
|
|
new_cell.set_text(texta);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Merge the selected cell into the cell above it.
|
|
|
*/
|
|
|
Notebook.prototype.merge_cell_above = function () {
|
|
|
var index = this.get_selected_index();
|
|
|
var cell = this.get_cell(index);
|
|
|
var render = cell.rendered;
|
|
|
if (!cell.is_mergeable()) {
|
|
|
return;
|
|
|
}
|
|
|
if (index > 0) {
|
|
|
var upper_cell = this.get_cell(index-1);
|
|
|
if (!upper_cell.is_mergeable()) {
|
|
|
return;
|
|
|
}
|
|
|
var upper_text = upper_cell.get_text();
|
|
|
var text = cell.get_text();
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.set_text(upper_text+'\n'+text);
|
|
|
} else {
|
|
|
cell.unrender(); // Must unrender before we set_text.
|
|
|
cell.set_text(upper_text+'\n\n'+text);
|
|
|
if (render) {
|
|
|
// The rendered state of the final cell should match
|
|
|
// that of the original selected cell;
|
|
|
cell.render();
|
|
|
}
|
|
|
}
|
|
|
this.delete_cell(index-1);
|
|
|
this.select(this.find_cell_index(cell));
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Merge the selected cell into the cell below it.
|
|
|
*/
|
|
|
Notebook.prototype.merge_cell_below = function () {
|
|
|
var index = this.get_selected_index();
|
|
|
var cell = this.get_cell(index);
|
|
|
var render = cell.rendered;
|
|
|
if (!cell.is_mergeable()) {
|
|
|
return;
|
|
|
}
|
|
|
if (index < this.ncells()-1) {
|
|
|
var lower_cell = this.get_cell(index+1);
|
|
|
if (!lower_cell.is_mergeable()) {
|
|
|
return;
|
|
|
}
|
|
|
var lower_text = lower_cell.get_text();
|
|
|
var text = cell.get_text();
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.set_text(text+'\n'+lower_text);
|
|
|
} else {
|
|
|
cell.unrender(); // Must unrender before we set_text.
|
|
|
cell.set_text(text+'\n\n'+lower_text);
|
|
|
if (render) {
|
|
|
// The rendered state of the final cell should match
|
|
|
// that of the original selected cell;
|
|
|
cell.render();
|
|
|
}
|
|
|
}
|
|
|
this.delete_cell(index+1);
|
|
|
this.select(this.find_cell_index(cell));
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
// Cell collapsing and output clearing
|
|
|
|
|
|
/**
|
|
|
* Hide a cell's output.
|
|
|
*
|
|
|
* @param {integer} index - cell index
|
|
|
*/
|
|
|
Notebook.prototype.collapse_output = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
if (cell !== null && (cell instanceof codecell.CodeCell)) {
|
|
|
cell.collapse_output();
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Hide each code cell's output area.
|
|
|
*/
|
|
|
Notebook.prototype.collapse_all_output = function () {
|
|
|
this.get_cells().map(function (cell, i) {
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.collapse_output();
|
|
|
}
|
|
|
});
|
|
|
// this should not be set if the `collapse` key is removed from nbformat
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Show a cell's output.
|
|
|
*
|
|
|
* @param {integer} index - cell index
|
|
|
*/
|
|
|
Notebook.prototype.expand_output = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
if (cell !== null && (cell instanceof codecell.CodeCell)) {
|
|
|
cell.expand_output();
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Expand each code cell's output area, and remove scrollbars.
|
|
|
*/
|
|
|
Notebook.prototype.expand_all_output = function () {
|
|
|
this.get_cells().map(function (cell, i) {
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.expand_output();
|
|
|
}
|
|
|
});
|
|
|
// this should not be set if the `collapse` key is removed from nbformat
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Clear the selected CodeCell's output area.
|
|
|
*
|
|
|
* @param {integer} index - cell index
|
|
|
*/
|
|
|
Notebook.prototype.clear_output = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
if (cell !== null && (cell instanceof codecell.CodeCell)) {
|
|
|
cell.clear_output();
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Clear each code cell's output area.
|
|
|
*/
|
|
|
Notebook.prototype.clear_all_output = function () {
|
|
|
this.get_cells().map(function (cell, i) {
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.clear_output();
|
|
|
}
|
|
|
});
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Scroll the selected CodeCell's output area.
|
|
|
*
|
|
|
* @param {integer} index - cell index
|
|
|
*/
|
|
|
Notebook.prototype.scroll_output = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
if (cell !== null && (cell instanceof codecell.CodeCell)) {
|
|
|
cell.scroll_output();
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Expand each code cell's output area and add a scrollbar for long output.
|
|
|
*/
|
|
|
Notebook.prototype.scroll_all_output = function () {
|
|
|
this.get_cells().map(function (cell, i) {
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.scroll_output();
|
|
|
}
|
|
|
});
|
|
|
// this should not be set if the `collapse` key is removed from nbformat
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Toggle whether a cell's output is collapsed or expanded.
|
|
|
*
|
|
|
* @param {integer} index - cell index
|
|
|
*/
|
|
|
Notebook.prototype.toggle_output = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
if (cell !== null && (cell instanceof codecell.CodeCell)) {
|
|
|
cell.toggle_output();
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Toggle the output of all cells.
|
|
|
*/
|
|
|
Notebook.prototype.toggle_all_output = function () {
|
|
|
this.get_cells().map(function (cell, i) {
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.toggle_output();
|
|
|
}
|
|
|
});
|
|
|
// this should not be set if the `collapse` key is removed from nbformat
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Toggle a scrollbar for long cell outputs.
|
|
|
*
|
|
|
* @param {integer} index - cell index
|
|
|
*/
|
|
|
Notebook.prototype.toggle_output_scroll = function (index) {
|
|
|
var i = this.index_or_selected(index);
|
|
|
var cell = this.get_cell(i);
|
|
|
if (cell !== null && (cell instanceof codecell.CodeCell)) {
|
|
|
cell.toggle_output_scroll();
|
|
|
this.set_dirty(true);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Toggle the scrolling of long output on all cells.
|
|
|
*/
|
|
|
Notebook.prototype.toggle_all_output_scroll = function () {
|
|
|
this.get_cells().map(function (cell, i) {
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.toggle_output_scroll();
|
|
|
}
|
|
|
});
|
|
|
// this should not be set if the `collapse` key is removed from nbformat
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
// Other cell functions: line numbers, ...
|
|
|
|
|
|
/**
|
|
|
* Toggle line numbers in the selected cell's input area.
|
|
|
*/
|
|
|
Notebook.prototype.cell_toggle_line_numbers = function() {
|
|
|
this.get_selected_cell().toggle_line_numbers();
|
|
|
};
|
|
|
|
|
|
|
|
|
//dispatch codemirror mode to all cells.
|
|
|
Notebook.prototype._dispatch_mode = function(spec, newmode){
|
|
|
this.codemirror_mode = newmode;
|
|
|
codecell.CodeCell.options_default.cm_config.mode = newmode;
|
|
|
this.get_cells().map(function(cell, i) {
|
|
|
if (cell.cell_type === 'code'){
|
|
|
cell.code_mirror.setOption('mode', spec);
|
|
|
// This is currently redundant, because cm_config ends up as
|
|
|
// codemirror's own .options object, but I don't want to
|
|
|
// rely on that.
|
|
|
cell.cm_config.mode = spec;
|
|
|
}
|
|
|
});
|
|
|
|
|
|
};
|
|
|
|
|
|
// roughly try to check mode equality
|
|
|
var _mode_equal = function(mode1, mode2){
|
|
|
return ((mode1||{}).name||mode1)===((mode2||{}).name||mode2);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Set the codemirror mode for all code cells, including the default for
|
|
|
* new code cells.
|
|
|
* Set the mode to 'null' (no highlighting) if it can't be found.
|
|
|
*/
|
|
|
Notebook.prototype.set_codemirror_mode = function(newmode){
|
|
|
// if mode is the same don't reset,
|
|
|
// to avoid n-time re-highlighting.
|
|
|
if (_mode_equal(newmode, this.codemirror_mode)) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var that = this;
|
|
|
utils.requireCodeMirrorMode(newmode, function (spec) {
|
|
|
that._dispatch_mode(spec, newmode);
|
|
|
}, function(){
|
|
|
// on error don't dispatch the new mode as re-setting it later will not work.
|
|
|
// don't either set to null mode if it has been changed in the meantime
|
|
|
if( _mode_equal(newmode, this.codemirror_mode) ){
|
|
|
that._dispatch_mode('null','null');
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
// Session related things
|
|
|
|
|
|
/**
|
|
|
* Start a new session and set it on each code cell.
|
|
|
*/
|
|
|
Notebook.prototype.start_session = function (kernel_name) {
|
|
|
if (this._session_starting) {
|
|
|
throw new session.SessionAlreadyStarting();
|
|
|
}
|
|
|
this._session_starting = true;
|
|
|
|
|
|
var options = {
|
|
|
base_url: this.base_url,
|
|
|
ws_url: this.ws_url,
|
|
|
notebook_path: this.notebook_path,
|
|
|
notebook_name: this.notebook_name,
|
|
|
kernel_name: kernel_name,
|
|
|
notebook: this
|
|
|
};
|
|
|
|
|
|
var success = $.proxy(this._session_started, this);
|
|
|
var failure = $.proxy(this._session_start_failed, this);
|
|
|
|
|
|
if (this.session !== null) {
|
|
|
this.session.restart(options, success, failure);
|
|
|
} else {
|
|
|
this.session = new session.Session(options);
|
|
|
this.session.start(success, failure);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Once a session is started, link the code cells to the kernel and pass the
|
|
|
* comm manager to the widget manager.
|
|
|
*/
|
|
|
Notebook.prototype._session_started = function (){
|
|
|
this._session_starting = false;
|
|
|
this.kernel = this.session.kernel;
|
|
|
var ncells = this.ncells();
|
|
|
for (var i=0; i<ncells; i++) {
|
|
|
var cell = this.get_cell(i);
|
|
|
if (cell instanceof codecell.CodeCell) {
|
|
|
cell.set_kernel(this.session.kernel);
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Called when the session fails to start.
|
|
|
*/
|
|
|
Notebook.prototype._session_start_failed = function(jqxhr, status, error){
|
|
|
this._session_starting = false;
|
|
|
utils.log_ajax_error(jqxhr, status, error);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Prompt the user to restart the IPython kernel.
|
|
|
*/
|
|
|
Notebook.prototype.restart_kernel = function () {
|
|
|
var that = this;
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title : "Restart kernel or continue running?",
|
|
|
body : $("<p/>").text(
|
|
|
'Do you want to restart the current kernel? You will lose all variables defined in it.'
|
|
|
),
|
|
|
buttons : {
|
|
|
"Continue running" : {},
|
|
|
"Restart" : {
|
|
|
"class" : "btn-danger",
|
|
|
"click" : function() {
|
|
|
that.kernel.restart();
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Execute or render cell outputs and go into command mode.
|
|
|
*/
|
|
|
Notebook.prototype.execute_cell = function () {
|
|
|
// mode = shift, ctrl, alt
|
|
|
var cell = this.get_selected_cell();
|
|
|
|
|
|
cell.execute();
|
|
|
this.command_mode();
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Execute or render cell outputs and insert a new cell below.
|
|
|
*/
|
|
|
Notebook.prototype.execute_cell_and_insert_below = function () {
|
|
|
var cell = this.get_selected_cell();
|
|
|
var cell_index = this.find_cell_index(cell);
|
|
|
|
|
|
cell.execute();
|
|
|
|
|
|
// If we are at the end always insert a new cell and return
|
|
|
if (cell_index === (this.ncells()-1)) {
|
|
|
this.command_mode();
|
|
|
this.insert_cell_below();
|
|
|
this.select(cell_index+1);
|
|
|
this.edit_mode();
|
|
|
this.scroll_to_bottom();
|
|
|
this.set_dirty(true);
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
this.command_mode();
|
|
|
this.insert_cell_below();
|
|
|
this.select(cell_index+1);
|
|
|
this.edit_mode();
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Execute or render cell outputs and select the next cell.
|
|
|
*/
|
|
|
Notebook.prototype.execute_cell_and_select_below = function () {
|
|
|
|
|
|
var cell = this.get_selected_cell();
|
|
|
var cell_index = this.find_cell_index(cell);
|
|
|
|
|
|
cell.execute();
|
|
|
|
|
|
// If we are at the end always insert a new cell and return
|
|
|
if (cell_index === (this.ncells()-1)) {
|
|
|
this.command_mode();
|
|
|
this.insert_cell_below();
|
|
|
this.select(cell_index+1);
|
|
|
this.edit_mode();
|
|
|
this.scroll_to_bottom();
|
|
|
this.set_dirty(true);
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
this.command_mode();
|
|
|
this.select(cell_index+1);
|
|
|
this.focus_cell();
|
|
|
this.set_dirty(true);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Execute all cells below the selected cell.
|
|
|
*/
|
|
|
Notebook.prototype.execute_cells_below = function () {
|
|
|
this.execute_cell_range(this.get_selected_index(), this.ncells());
|
|
|
this.scroll_to_bottom();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Execute all cells above the selected cell.
|
|
|
*/
|
|
|
Notebook.prototype.execute_cells_above = function () {
|
|
|
this.execute_cell_range(0, this.get_selected_index());
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Execute all cells.
|
|
|
*/
|
|
|
Notebook.prototype.execute_all_cells = function () {
|
|
|
this.execute_cell_range(0, this.ncells());
|
|
|
this.scroll_to_bottom();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Execute a contiguous range of cells.
|
|
|
*
|
|
|
* @param {integer} start - index of the first cell to execute (inclusive)
|
|
|
* @param {integer} end - index of the last cell to execute (exclusive)
|
|
|
*/
|
|
|
Notebook.prototype.execute_cell_range = function (start, end) {
|
|
|
this.command_mode();
|
|
|
for (var i=start; i<end; i++) {
|
|
|
this.select(i);
|
|
|
this.execute_cell();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
// Persistance and loading
|
|
|
|
|
|
/**
|
|
|
* Getter method for this notebook's name.
|
|
|
*
|
|
|
* @return {string} This notebook's name (excluding file extension)
|
|
|
*/
|
|
|
Notebook.prototype.get_notebook_name = function () {
|
|
|
var nbname = this.notebook_name.substring(0,this.notebook_name.length-6);
|
|
|
return nbname;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Setter method for this notebook's name.
|
|
|
*
|
|
|
* @param {string} name
|
|
|
*/
|
|
|
Notebook.prototype.set_notebook_name = function (name) {
|
|
|
var parent = utils.url_path_split(this.notebook_path)[0];
|
|
|
this.notebook_name = name;
|
|
|
this.notebook_path = utils.url_path_join(parent, name);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Check that a notebook's name is valid.
|
|
|
*
|
|
|
* @param {string} nbname - A name for this notebook
|
|
|
* @return {boolean} True if the name is valid, false if invalid
|
|
|
*/
|
|
|
Notebook.prototype.test_notebook_name = function (nbname) {
|
|
|
nbname = nbname || '';
|
|
|
if (nbname.length>0 && !this.notebook_name_blacklist_re.test(nbname)) {
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Load a notebook from JSON (.ipynb).
|
|
|
*
|
|
|
* @param {object} data - JSON representation of a notebook
|
|
|
*/
|
|
|
Notebook.prototype.fromJSON = function (data) {
|
|
|
|
|
|
var content = data.content;
|
|
|
var ncells = this.ncells();
|
|
|
var i;
|
|
|
for (i=0; i<ncells; i++) {
|
|
|
// Always delete cell 0 as they get renumbered as they are deleted.
|
|
|
this._unsafe_delete_cell(0);
|
|
|
}
|
|
|
// Save the metadata and name.
|
|
|
this.metadata = content.metadata;
|
|
|
this.notebook_name = data.name;
|
|
|
this.notebook_path = data.path;
|
|
|
var trusted = true;
|
|
|
|
|
|
// Set the codemirror mode from language_info metadata
|
|
|
if (this.metadata.language_info !== undefined) {
|
|
|
var langinfo = this.metadata.language_info;
|
|
|
// Mode 'null' should be plain, unhighlighted text.
|
|
|
var cm_mode = langinfo.codemirror_mode || langinfo.name || 'null';
|
|
|
this.set_codemirror_mode(cm_mode);
|
|
|
}
|
|
|
|
|
|
var new_cells = content.cells;
|
|
|
ncells = new_cells.length;
|
|
|
var cell_data = null;
|
|
|
var new_cell = null;
|
|
|
for (i=0; i<ncells; i++) {
|
|
|
cell_data = new_cells[i];
|
|
|
new_cell = this.insert_cell_at_index(cell_data.cell_type, i);
|
|
|
new_cell.fromJSON(cell_data);
|
|
|
if (new_cell.cell_type === 'code' && !new_cell.output_area.trusted) {
|
|
|
trusted = false;
|
|
|
}
|
|
|
}
|
|
|
if (trusted !== this.trusted) {
|
|
|
this.trusted = trusted;
|
|
|
this.events.trigger("trust_changed.Notebook", trusted);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Dump this notebook into a JSON-friendly object.
|
|
|
*
|
|
|
* @return {object} A JSON-friendly representation of this notebook.
|
|
|
*/
|
|
|
Notebook.prototype.toJSON = function () {
|
|
|
// remove the conversion indicator, which only belongs in-memory
|
|
|
delete this.metadata.orig_nbformat;
|
|
|
delete this.metadata.orig_nbformat_minor;
|
|
|
|
|
|
var cells = this.get_cells();
|
|
|
var ncells = cells.length;
|
|
|
var cell_array = new Array(ncells);
|
|
|
var trusted = true;
|
|
|
for (var i=0; i<ncells; i++) {
|
|
|
var cell = cells[i];
|
|
|
if (cell.cell_type === 'code' && !cell.output_area.trusted) {
|
|
|
trusted = false;
|
|
|
}
|
|
|
cell_array[i] = cell.toJSON();
|
|
|
}
|
|
|
var data = {
|
|
|
cells: cell_array,
|
|
|
metadata: this.metadata,
|
|
|
nbformat: this.nbformat,
|
|
|
nbformat_minor: this.nbformat_minor
|
|
|
};
|
|
|
if (trusted !== this.trusted) {
|
|
|
this.trusted = trusted;
|
|
|
this.events.trigger("trust_changed.Notebook", trusted);
|
|
|
}
|
|
|
return data;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Start an autosave timer which periodically saves the notebook.
|
|
|
*
|
|
|
* @param {integer} interval - the autosave interval in milliseconds
|
|
|
*/
|
|
|
Notebook.prototype.set_autosave_interval = function (interval) {
|
|
|
var that = this;
|
|
|
// clear previous interval, so we don't get simultaneous timers
|
|
|
if (this.autosave_timer) {
|
|
|
clearInterval(this.autosave_timer);
|
|
|
}
|
|
|
if (!this.writable) {
|
|
|
// disable autosave if not writable
|
|
|
interval = 0;
|
|
|
}
|
|
|
|
|
|
this.autosave_interval = this.minimum_autosave_interval = interval;
|
|
|
if (interval) {
|
|
|
this.autosave_timer = setInterval(function() {
|
|
|
if (that.dirty) {
|
|
|
that.save_notebook();
|
|
|
}
|
|
|
}, interval);
|
|
|
this.events.trigger("autosave_enabled.Notebook", interval);
|
|
|
} else {
|
|
|
this.autosave_timer = null;
|
|
|
this.events.trigger("autosave_disabled.Notebook");
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Save this notebook on the server. This becomes a notebook instance's
|
|
|
* .save_notebook method *after* the entire notebook has been loaded.
|
|
|
*/
|
|
|
Notebook.prototype.save_notebook = function (check_last_modified) {
|
|
|
if (check_last_modified === undefined) {
|
|
|
check_last_modified = true;
|
|
|
}
|
|
|
if (!this._fully_loaded) {
|
|
|
this.events.trigger('notebook_save_failed.Notebook',
|
|
|
new Error("Load failed, save is disabled")
|
|
|
);
|
|
|
return;
|
|
|
} else if (!this.writable) {
|
|
|
this.events.trigger('notebook_save_failed.Notebook',
|
|
|
new Error("Notebook is read-only")
|
|
|
);
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// Trigger an event before save, which allows listeners to modify
|
|
|
// the notebook as needed.
|
|
|
this.events.trigger('before_save.Notebook');
|
|
|
|
|
|
// Create a JSON model to be sent to the server.
|
|
|
var model = {
|
|
|
type : "notebook",
|
|
|
content : this.toJSON()
|
|
|
};
|
|
|
// time the ajax call for autosave tuning purposes.
|
|
|
var start = new Date().getTime();
|
|
|
|
|
|
var that = this;
|
|
|
var _save = function () {
|
|
|
return that.contents.save(that.notebook_path, model).then(
|
|
|
$.proxy(that.save_notebook_success, that, start),
|
|
|
function (error) {
|
|
|
that.events.trigger('notebook_save_failed.Notebook', error);
|
|
|
}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
if (check_last_modified) {
|
|
|
return this.contents.get(this.notebook_path, {content: false}).then(
|
|
|
function (data) {
|
|
|
var last_modified = new Date(data.last_modified);
|
|
|
if (last_modified > that.last_modified) {
|
|
|
dialog.modal({
|
|
|
notebook: that,
|
|
|
keyboard_manager: that.keyboard_manager,
|
|
|
title: "Notebook changed",
|
|
|
body: "Notebook has changed since we opened it. Overwrite the changed file?",
|
|
|
buttons: {
|
|
|
Cancel: {},
|
|
|
Overwrite: {
|
|
|
class: 'btn-danger',
|
|
|
click: function () {
|
|
|
_save();
|
|
|
}
|
|
|
},
|
|
|
}
|
|
|
});
|
|
|
} else {
|
|
|
return _save();
|
|
|
}
|
|
|
}, function (error) {
|
|
|
// maybe it has been deleted or renamed? Go ahead and save.
|
|
|
return _save();
|
|
|
}
|
|
|
);
|
|
|
} else {
|
|
|
return _save();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Success callback for saving a notebook.
|
|
|
*
|
|
|
* @param {integer} start - Time when the save request start
|
|
|
* @param {object} data - JSON representation of a notebook
|
|
|
*/
|
|
|
Notebook.prototype.save_notebook_success = function (start, data) {
|
|
|
this.set_dirty(false);
|
|
|
this.last_modified = new Date(data.last_modified);
|
|
|
if (data.message) {
|
|
|
// save succeeded, but validation failed.
|
|
|
var body = $("<div>");
|
|
|
var title = "Notebook validation failed";
|
|
|
|
|
|
body.append($("<p>").text(
|
|
|
"The save operation succeeded," +
|
|
|
" but the notebook does not appear to be valid." +
|
|
|
" The validation error was:"
|
|
|
)).append($("<div>").addClass("validation-error").append(
|
|
|
$("<pre>").text(data.message)
|
|
|
));
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title: title,
|
|
|
body: body,
|
|
|
buttons : {
|
|
|
OK : {
|
|
|
"class" : "btn-primary"
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
this.events.trigger('notebook_saved.Notebook');
|
|
|
this._update_autosave_interval(start);
|
|
|
if (this._checkpoint_after_save) {
|
|
|
this.create_checkpoint();
|
|
|
this._checkpoint_after_save = false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Update the autosave interval based on the duration of the last save.
|
|
|
*
|
|
|
* @param {integer} timestamp - when the save request started
|
|
|
*/
|
|
|
Notebook.prototype._update_autosave_interval = function (start) {
|
|
|
var duration = (new Date().getTime() - start);
|
|
|
if (this.autosave_interval) {
|
|
|
// new save interval: higher of 10x save duration or parameter (default 30 seconds)
|
|
|
var interval = Math.max(10 * duration, this.minimum_autosave_interval);
|
|
|
// round to 10 seconds, otherwise we will be setting a new interval too often
|
|
|
interval = 10000 * Math.round(interval / 10000);
|
|
|
// set new interval, if it's changed
|
|
|
if (interval !== this.autosave_interval) {
|
|
|
this.set_autosave_interval(interval);
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Explicitly trust the output of this notebook.
|
|
|
*/
|
|
|
Notebook.prototype.trust_notebook = function () {
|
|
|
var body = $("<div>").append($("<p>")
|
|
|
.text("A trusted IPython notebook may execute hidden malicious code ")
|
|
|
.append($("<strong>")
|
|
|
.append(
|
|
|
$("<em>").text("when you open it")
|
|
|
)
|
|
|
).append(".").append(
|
|
|
" Selecting trust will immediately reload this notebook in a trusted state."
|
|
|
).append(
|
|
|
" For more information, see the "
|
|
|
).append($("<a>").attr("href", "http://ipython.org/ipython-doc/2/notebook/security.html")
|
|
|
.text("IPython security documentation")
|
|
|
).append(".")
|
|
|
);
|
|
|
|
|
|
var nb = this;
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title: "Trust this notebook?",
|
|
|
body: body,
|
|
|
|
|
|
buttons: {
|
|
|
Cancel : {},
|
|
|
Trust : {
|
|
|
class : "btn-danger",
|
|
|
click : function () {
|
|
|
var cells = nb.get_cells();
|
|
|
for (var i = 0; i < cells.length; i++) {
|
|
|
var cell = cells[i];
|
|
|
if (cell.cell_type === 'code') {
|
|
|
cell.output_area.trusted = true;
|
|
|
}
|
|
|
}
|
|
|
nb.events.on('notebook_saved.Notebook', function () {
|
|
|
window.location.reload();
|
|
|
});
|
|
|
nb.save_notebook();
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Make a copy of the current notebook.
|
|
|
*/
|
|
|
Notebook.prototype.copy_notebook = function () {
|
|
|
var that = this;
|
|
|
var base_url = this.base_url;
|
|
|
var w = window.open('', IPython._target);
|
|
|
var parent = utils.url_path_split(this.notebook_path)[0];
|
|
|
this.contents.copy(this.notebook_path, parent).then(
|
|
|
function (data) {
|
|
|
w.location = utils.url_join_encode(
|
|
|
base_url, 'notebooks', data.path
|
|
|
);
|
|
|
},
|
|
|
function(error) {
|
|
|
w.close();
|
|
|
that.events.trigger('notebook_copy_failed', error);
|
|
|
}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Ensure a filename has the right extension
|
|
|
* Returns the filename with the appropriate extension, appending if necessary.
|
|
|
*/
|
|
|
Notebook.prototype.ensure_extension = function (name) {
|
|
|
if (!name.match(/\.ipynb$/)) {
|
|
|
name = name + ".ipynb";
|
|
|
}
|
|
|
return name;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Rename the notebook.
|
|
|
* @param {string} new_name
|
|
|
* @return {Promise} promise that resolves when the notebook is renamed.
|
|
|
*/
|
|
|
Notebook.prototype.rename = function (new_name) {
|
|
|
new_name = this.ensure_extension(new_name);
|
|
|
|
|
|
var that = this;
|
|
|
var parent = utils.url_path_split(this.notebook_path)[0];
|
|
|
var new_path = utils.url_path_join(parent, new_name);
|
|
|
return this.contents.rename(this.notebook_path, new_path).then(
|
|
|
function (json) {
|
|
|
that.notebook_name = json.name;
|
|
|
that.notebook_path = json.path;
|
|
|
that.last_modified = new Date(json.last_modified);
|
|
|
that.session.rename_notebook(json.path);
|
|
|
that.events.trigger('notebook_renamed.Notebook', json);
|
|
|
}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Delete this notebook
|
|
|
*/
|
|
|
Notebook.prototype.delete = function () {
|
|
|
this.contents.delete(this.notebook_path);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Request a notebook's data from the server.
|
|
|
*
|
|
|
* @param {string} notebook_path - A notebook to load
|
|
|
*/
|
|
|
Notebook.prototype.load_notebook = function (notebook_path) {
|
|
|
this.notebook_path = notebook_path;
|
|
|
this.notebook_name = utils.url_path_split(this.notebook_path)[1];
|
|
|
this.events.trigger('notebook_loading.Notebook');
|
|
|
this.contents.get(notebook_path, {type: 'notebook'}).then(
|
|
|
$.proxy(this.load_notebook_success, this),
|
|
|
$.proxy(this.load_notebook_error, this)
|
|
|
);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Success callback for loading a notebook from the server.
|
|
|
*
|
|
|
* Load notebook data from the JSON response.
|
|
|
*
|
|
|
* @param {object} data JSON representation of a notebook
|
|
|
*/
|
|
|
Notebook.prototype.load_notebook_success = function (data) {
|
|
|
var failed, msg;
|
|
|
try {
|
|
|
this.fromJSON(data);
|
|
|
} catch (e) {
|
|
|
failed = e;
|
|
|
console.log("Notebook failed to load from JSON:", e);
|
|
|
}
|
|
|
if (failed || data.message) {
|
|
|
// *either* fromJSON failed or validation failed
|
|
|
var body = $("<div>");
|
|
|
var title;
|
|
|
if (failed) {
|
|
|
title = "Notebook failed to load";
|
|
|
body.append($("<p>").text(
|
|
|
"The error was: "
|
|
|
)).append($("<div>").addClass("js-error").text(
|
|
|
failed.toString()
|
|
|
)).append($("<p>").text(
|
|
|
"See the error console for details."
|
|
|
));
|
|
|
} else {
|
|
|
title = "Notebook validation failed";
|
|
|
}
|
|
|
|
|
|
if (data.message) {
|
|
|
if (failed) {
|
|
|
msg = "The notebook also failed validation:";
|
|
|
} else {
|
|
|
msg = "An invalid notebook may not function properly." +
|
|
|
" The validation error was:";
|
|
|
}
|
|
|
body.append($("<p>").text(
|
|
|
msg
|
|
|
)).append($("<div>").addClass("validation-error").append(
|
|
|
$("<pre>").text(data.message)
|
|
|
));
|
|
|
}
|
|
|
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title: title,
|
|
|
body: body,
|
|
|
buttons : {
|
|
|
OK : {
|
|
|
"class" : "btn-primary"
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
if (this.ncells() === 0) {
|
|
|
this.insert_cell_below('code');
|
|
|
this.edit_mode(0);
|
|
|
} else {
|
|
|
this.select(0);
|
|
|
this.handle_command_mode(this.get_cell(0));
|
|
|
}
|
|
|
this.set_dirty(false);
|
|
|
this.scroll_to_top();
|
|
|
this.writable = data.writable || false;
|
|
|
this.last_modified = new Date(data.last_modified);
|
|
|
var nbmodel = data.content;
|
|
|
var orig_nbformat = nbmodel.metadata.orig_nbformat;
|
|
|
var orig_nbformat_minor = nbmodel.metadata.orig_nbformat_minor;
|
|
|
if (orig_nbformat !== undefined && nbmodel.nbformat !== orig_nbformat) {
|
|
|
var src;
|
|
|
if (nbmodel.nbformat > orig_nbformat) {
|
|
|
src = " an older notebook format ";
|
|
|
} else {
|
|
|
src = " a newer notebook format ";
|
|
|
}
|
|
|
|
|
|
msg = "This notebook has been converted from" + src +
|
|
|
"(v"+orig_nbformat+") to the current notebook " +
|
|
|
"format (v"+nbmodel.nbformat+"). The next time you save this notebook, the " +
|
|
|
"current notebook format will be used.";
|
|
|
|
|
|
if (nbmodel.nbformat > orig_nbformat) {
|
|
|
msg += " Older versions of IPython may not be able to read the new format.";
|
|
|
} else {
|
|
|
msg += " Some features of the original notebook may not be available.";
|
|
|
}
|
|
|
msg += " To preserve the original version, close the " +
|
|
|
"notebook without saving it.";
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title : "Notebook converted",
|
|
|
body : msg,
|
|
|
buttons : {
|
|
|
OK : {
|
|
|
class : "btn-primary"
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
} else if (this.nbformat_minor < nbmodel.nbformat_minor) {
|
|
|
this.nbformat_minor = nbmodel.nbformat_minor;
|
|
|
}
|
|
|
|
|
|
if (this.session === null) {
|
|
|
var kernel_name = utils.get_url_param('kernel_name');
|
|
|
if (kernel_name) {
|
|
|
this.kernel_selector.set_kernel(kernel_name);
|
|
|
} else if (this.metadata.kernelspec) {
|
|
|
this.kernel_selector.set_kernel(this.metadata.kernelspec);
|
|
|
} else if (this.metadata.language) {
|
|
|
// compat with IJulia, IHaskell, and other early kernels
|
|
|
// adopters that where setting a language metadata.
|
|
|
this.kernel_selector.set_kernel({
|
|
|
name: "(No name)",
|
|
|
language: this.metadata.language
|
|
|
});
|
|
|
// this should be stored in kspec now, delete it.
|
|
|
// remove once we do not support notebook v3 anymore.
|
|
|
delete this.metadata.language;
|
|
|
} else {
|
|
|
// setting kernel via set_kernel above triggers start_session,
|
|
|
// otherwise start a new session with the server's default kernel
|
|
|
// spec_changed events will fire after kernel is loaded
|
|
|
this.start_session();
|
|
|
}
|
|
|
}
|
|
|
// load our checkpoint list
|
|
|
this.list_checkpoints();
|
|
|
|
|
|
// load toolbar state
|
|
|
if (this.metadata.celltoolbar) {
|
|
|
celltoolbar.CellToolbar.global_show();
|
|
|
celltoolbar.CellToolbar.activate_preset(this.metadata.celltoolbar);
|
|
|
} else {
|
|
|
celltoolbar.CellToolbar.global_hide();
|
|
|
}
|
|
|
|
|
|
if (!this.writable) {
|
|
|
this.set_autosave_interval(0);
|
|
|
this.events.trigger('notebook_read_only.Notebook');
|
|
|
}
|
|
|
|
|
|
// now that we're fully loaded, it is safe to restore save functionality
|
|
|
this._fully_loaded = true;
|
|
|
this.events.trigger('notebook_loaded.Notebook');
|
|
|
};
|
|
|
|
|
|
Notebook.prototype.set_kernelselector = function(k_selector){
|
|
|
this.kernel_selector = k_selector;
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Failure callback for loading a notebook from the server.
|
|
|
*
|
|
|
* @param {Error} error
|
|
|
*/
|
|
|
Notebook.prototype.load_notebook_error = function (error) {
|
|
|
this.events.trigger('notebook_load_failed.Notebook', error);
|
|
|
var msg;
|
|
|
if (error.name === utils.XHR_ERROR && error.xhr.status === 500) {
|
|
|
utils.log_ajax_error(error.xhr, error.xhr_status, error.xhr_error);
|
|
|
msg = "An unknown error occurred while loading this notebook. " +
|
|
|
"This version can load notebook formats " +
|
|
|
"v" + this.nbformat + " or earlier. See the server log for details.";
|
|
|
} else {
|
|
|
msg = error.message;
|
|
|
console.warn('Error stack trace while loading notebook was:');
|
|
|
console.warn(error.stack);
|
|
|
}
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title: "Error loading notebook",
|
|
|
body : msg,
|
|
|
buttons : {
|
|
|
"OK": {}
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
/********************* checkpoint-related ********************/
|
|
|
|
|
|
/**
|
|
|
* Save the notebook then immediately create a checkpoint.
|
|
|
*/
|
|
|
Notebook.prototype.save_checkpoint = function () {
|
|
|
this._checkpoint_after_save = true;
|
|
|
this.save_notebook();
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Add a checkpoint for this notebook.
|
|
|
*/
|
|
|
Notebook.prototype.add_checkpoint = function (checkpoint) {
|
|
|
var found = false;
|
|
|
for (var i = 0; i < this.checkpoints.length; i++) {
|
|
|
var existing = this.checkpoints[i];
|
|
|
if (existing.id === checkpoint.id) {
|
|
|
found = true;
|
|
|
this.checkpoints[i] = checkpoint;
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (!found) {
|
|
|
this.checkpoints.push(checkpoint);
|
|
|
}
|
|
|
this.last_checkpoint = this.checkpoints[this.checkpoints.length - 1];
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* List checkpoints for this notebook.
|
|
|
*/
|
|
|
Notebook.prototype.list_checkpoints = function () {
|
|
|
var that = this;
|
|
|
this.contents.list_checkpoints(this.notebook_path).then(
|
|
|
$.proxy(this.list_checkpoints_success, this),
|
|
|
function(error) {
|
|
|
that.events.trigger('list_checkpoints_failed.Notebook', error);
|
|
|
}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Success callback for listing checkpoints.
|
|
|
*
|
|
|
* @param {object} data - JSON representation of a checkpoint
|
|
|
*/
|
|
|
Notebook.prototype.list_checkpoints_success = function (data) {
|
|
|
this.checkpoints = data;
|
|
|
if (data.length) {
|
|
|
this.last_checkpoint = data[data.length - 1];
|
|
|
} else {
|
|
|
this.last_checkpoint = null;
|
|
|
}
|
|
|
this.events.trigger('checkpoints_listed.Notebook', [data]);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Create a checkpoint of this notebook on the server from the most recent save.
|
|
|
*/
|
|
|
Notebook.prototype.create_checkpoint = function () {
|
|
|
var that = this;
|
|
|
this.contents.create_checkpoint(this.notebook_path).then(
|
|
|
$.proxy(this.create_checkpoint_success, this),
|
|
|
function (error) {
|
|
|
that.events.trigger('checkpoint_failed.Notebook', error);
|
|
|
}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Success callback for creating a checkpoint.
|
|
|
*
|
|
|
* @param {object} data - JSON representation of a checkpoint
|
|
|
*/
|
|
|
Notebook.prototype.create_checkpoint_success = function (data) {
|
|
|
this.add_checkpoint(data);
|
|
|
this.events.trigger('checkpoint_created.Notebook', data);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Display the restore checkpoint dialog
|
|
|
* @param {string} checkpoint ID
|
|
|
*/
|
|
|
Notebook.prototype.restore_checkpoint_dialog = function (checkpoint) {
|
|
|
var that = this;
|
|
|
checkpoint = checkpoint || this.last_checkpoint;
|
|
|
if ( ! checkpoint ) {
|
|
|
console.log("restore dialog, but no checkpoint to restore to!");
|
|
|
return;
|
|
|
}
|
|
|
var body = $('<div/>').append(
|
|
|
$('<p/>').addClass("p-space").text(
|
|
|
"Are you sure you want to revert the notebook to " +
|
|
|
"the latest checkpoint?"
|
|
|
).append(
|
|
|
$("<strong/>").text(
|
|
|
" This cannot be undone."
|
|
|
)
|
|
|
)
|
|
|
).append(
|
|
|
$('<p/>').addClass("p-space").text("The checkpoint was last updated at:")
|
|
|
).append(
|
|
|
$('<p/>').addClass("p-space").text(
|
|
|
moment(checkpoint.last_modified).format('LLLL') +
|
|
|
' ('+moment(checkpoint.last_modified).fromNow()+')'// Long form: Tuesday, January 27, 2015 12:15 PM
|
|
|
).css("text-align", "center")
|
|
|
);
|
|
|
|
|
|
dialog.modal({
|
|
|
notebook: this,
|
|
|
keyboard_manager: this.keyboard_manager,
|
|
|
title : "Revert notebook to checkpoint",
|
|
|
body : body,
|
|
|
buttons : {
|
|
|
Revert : {
|
|
|
class : "btn-danger",
|
|
|
click : function () {
|
|
|
that.restore_checkpoint(checkpoint.id);
|
|
|
}
|
|
|
},
|
|
|
Cancel : {}
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Restore the notebook to a checkpoint state.
|
|
|
*
|
|
|
* @param {string} checkpoint ID
|
|
|
*/
|
|
|
Notebook.prototype.restore_checkpoint = function (checkpoint) {
|
|
|
this.events.trigger('notebook_restoring.Notebook', checkpoint);
|
|
|
var that = this;
|
|
|
this.contents.restore_checkpoint(this.notebook_path, checkpoint).then(
|
|
|
$.proxy(this.restore_checkpoint_success, this),
|
|
|
function (error) {
|
|
|
that.events.trigger('checkpoint_restore_failed.Notebook', error);
|
|
|
}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Success callback for restoring a notebook to a checkpoint.
|
|
|
*/
|
|
|
Notebook.prototype.restore_checkpoint_success = function () {
|
|
|
this.events.trigger('checkpoint_restored.Notebook');
|
|
|
this.load_notebook(this.notebook_path);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Delete a notebook checkpoint.
|
|
|
*
|
|
|
* @param {string} checkpoint ID
|
|
|
*/
|
|
|
Notebook.prototype.delete_checkpoint = function (checkpoint) {
|
|
|
this.events.trigger('notebook_restoring.Notebook', checkpoint);
|
|
|
var that = this;
|
|
|
this.contents.delete_checkpoint(this.notebook_path, checkpoint).then(
|
|
|
$.proxy(this.delete_checkpoint_success, this),
|
|
|
function (error) {
|
|
|
that.events.trigger('checkpoint_delete_failed.Notebook', error);
|
|
|
}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Success callback for deleting a notebook checkpoint.
|
|
|
*/
|
|
|
Notebook.prototype.delete_checkpoint_success = function () {
|
|
|
this.events.trigger('checkpoint_deleted.Notebook');
|
|
|
this.load_notebook(this.notebook_path);
|
|
|
};
|
|
|
|
|
|
|
|
|
// For backwards compatability.
|
|
|
IPython.Notebook = Notebook;
|
|
|
|
|
|
return {'Notebook': Notebook};
|
|
|
});
|
|
|
|
