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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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define([
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'base/js/namespace',
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'components/jquery/jquery.min',
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'base/js/utils',
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'base/js/keyboard',
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], function(IPython, $, utils, keyboard) {
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"use strict";
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var browser = utils.browser[0];
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var platform = utils.platform;
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// Main keyboard manager for the notebook
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var keycodes = keyboard.keycodes;
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var KeyboardManager = function (pager) {
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this.mode = 'command';
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this.enabled = true;
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this.pager = pager;
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this.quick_help = undefined;
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this.notebook = undefined;
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this.bind_events();
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this.command_shortcuts = new keyboard.ShortcutManager();
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this.command_shortcuts.add_shortcuts(this.get_default_common_shortcuts());
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this.command_shortcuts.add_shortcuts(this.get_default_command_shortcuts());
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this.edit_shortcuts = new keyboard.ShortcutManager();
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this.edit_shortcuts.add_shortcuts(this.get_default_common_shortcuts());
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this.edit_shortcuts.add_shortcuts(this.get_default_edit_shortcuts());
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};
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KeyboardManager.prototype.get_default_common_shortcuts = function() {
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var that = this;
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shortcuts = {
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'shift' : {
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help : '',
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help_index : '',
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handler : function (event) {
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// ignore shift keydown
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return true;
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}
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},
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'shift-enter' : {
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help : 'run cell, select below',
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help_index : 'ba',
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handler : function (event) {
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that.notebook.execute_cell_and_select_below();
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return false;
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}
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},
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'ctrl-enter' : {
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help : 'run cell',
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help_index : 'bb',
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handler : function (event) {
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that.notebook.execute_cell();
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return false;
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}
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},
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'alt-enter' : {
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help : 'run cell, insert below',
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help_index : 'bc',
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handler : function (event) {
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that.notebook.execute_cell_and_insert_below();
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return false;
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}
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}
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};
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if (platform === 'MacOS') {
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shortcuts['cmd-s'] =
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{
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help : 'save notebook',
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help_index : 'fb',
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handler : function (event) {
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that.notebook.save_checkpoint();
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event.preventDefault();
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return false;
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}
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};
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} else {
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shortcuts['ctrl-s'] =
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{
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help : 'save notebook',
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help_index : 'fb',
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handler : function (event) {
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that.notebook.save_checkpoint();
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event.preventDefault();
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return false;
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}
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};
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}
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return shortcuts;
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};
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KeyboardManager.prototype.get_default_edit_shortcuts = function() {
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var that = this;
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return {
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'esc' : {
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help : 'command mode',
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help_index : 'aa',
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handler : function (event) {
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that.notebook.command_mode();
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return false;
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}
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},
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'ctrl-m' : {
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help : 'command mode',
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help_index : 'ab',
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handler : function (event) {
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that.notebook.command_mode();
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return false;
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}
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},
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'up' : {
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help : '',
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help_index : '',
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handler : function (event) {
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var index = that.notebook.get_selected_index();
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var cell = that.notebook.get_cell(index);
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if (cell && cell.at_top() && index !== 0) {
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event.preventDefault();
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that.notebook.command_mode();
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that.notebook.select_prev();
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that.notebook.edit_mode();
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var cm = that.notebook.get_selected_cell().code_mirror;
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cm.setCursor(cm.lastLine(), 0);
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return false;
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} else if (cell) {
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var cm = cell.code_mirror;
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cm.execCommand('goLineUp');
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return false;
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}
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}
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},
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'down' : {
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help : '',
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help_index : '',
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handler : function (event) {
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var index = that.notebook.get_selected_index();
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var cell = that.notebook.get_cell(index);
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if (cell.at_bottom() && index !== (that.notebook.ncells()-1)) {
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event.preventDefault();
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that.notebook.command_mode();
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that.notebook.select_next();
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that.notebook.edit_mode();
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var cm = that.notebook.get_selected_cell().code_mirror;
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cm.setCursor(0, 0);
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return false;
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} else {
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var cm = cell.code_mirror;
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cm.execCommand('goLineDown');
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return false;
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}
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}
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},
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'ctrl-shift--' : {
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help : 'split cell',
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help_index : 'ea',
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handler : function (event) {
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that.notebook.split_cell();
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return false;
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}
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},
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'ctrl-shift-subtract' : {
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help : '',
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help_index : 'eb',
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handler : function (event) {
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that.notebook.split_cell();
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return false;
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}
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},
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};
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};
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KeyboardManager.prototype.get_default_command_shortcuts = function() {
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var that = this;
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return {
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'enter' : {
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help : 'edit mode',
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help_index : 'aa',
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handler : function (event) {
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that.notebook.edit_mode();
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return false;
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}
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},
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'up' : {
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help : 'select previous cell',
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help_index : 'da',
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handler : function (event) {
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var index = that.notebook.get_selected_index();
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if (index !== 0 && index !== null) {
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that.notebook.select_prev();
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that.notebook.focus_cell();
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}
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return false;
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}
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},
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'down' : {
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help : 'select next cell',
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help_index : 'db',
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handler : function (event) {
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var index = that.notebook.get_selected_index();
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if (index !== (that.notebook.ncells()-1) && index !== null) {
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that.notebook.select_next();
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that.notebook.focus_cell();
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}
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return false;
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}
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},
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'k' : {
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help : 'select previous cell',
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help_index : 'dc',
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handler : function (event) {
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var index = that.notebook.get_selected_index();
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if (index !== 0 && index !== null) {
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that.notebook.select_prev();
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that.notebook.focus_cell();
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}
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return false;
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}
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},
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'j' : {
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help : 'select next cell',
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help_index : 'dd',
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handler : function (event) {
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var index = that.notebook.get_selected_index();
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if (index !== (that.notebook.ncells()-1) && index !== null) {
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that.notebook.select_next();
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that.notebook.focus_cell();
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}
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return false;
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}
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},
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'x' : {
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help : 'cut cell',
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help_index : 'ee',
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handler : function (event) {
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that.notebook.cut_cell();
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return false;
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}
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},
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'c' : {
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help : 'copy cell',
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help_index : 'ef',
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handler : function (event) {
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that.notebook.copy_cell();
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return false;
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}
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},
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'shift-v' : {
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help : 'paste cell above',
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help_index : 'eg',
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handler : function (event) {
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that.notebook.paste_cell_above();
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return false;
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}
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},
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'v' : {
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help : 'paste cell below',
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help_index : 'eh',
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handler : function (event) {
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that.notebook.paste_cell_below();
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return false;
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}
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},
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'd' : {
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help : 'delete cell (press twice)',
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help_index : 'ej',
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count: 2,
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handler : function (event) {
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that.notebook.delete_cell();
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return false;
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}
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},
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'a' : {
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help : 'insert cell above',
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help_index : 'ec',
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handler : function (event) {
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that.notebook.insert_cell_above();
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that.notebook.select_prev();
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that.notebook.focus_cell();
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return false;
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}
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},
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'b' : {
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help : 'insert cell below',
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help_index : 'ed',
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handler : function (event) {
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that.notebook.insert_cell_below();
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that.notebook.select_next();
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that.notebook.focus_cell();
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return false;
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}
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},
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'y' : {
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help : 'to code',
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help_index : 'ca',
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handler : function (event) {
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that.notebook.to_code();
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return false;
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}
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},
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'm' : {
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help : 'to markdown',
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help_index : 'cb',
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handler : function (event) {
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that.notebook.to_markdown();
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return false;
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}
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},
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'r' : {
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help : 'to raw',
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help_index : 'cc',
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handler : function (event) {
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that.notebook.to_raw();
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return false;
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}
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},
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'1' : {
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help : 'to heading 1',
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help_index : 'cd',
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handler : function (event) {
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that.notebook.to_heading(undefined, 1);
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return false;
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}
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},
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'2' : {
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help : 'to heading 2',
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help_index : 'ce',
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handler : function (event) {
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that.notebook.to_heading(undefined, 2);
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return false;
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}
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},
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'3' : {
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help : 'to heading 3',
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help_index : 'cf',
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handler : function (event) {
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that.notebook.to_heading(undefined, 3);
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return false;
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}
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},
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'4' : {
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help : 'to heading 4',
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help_index : 'cg',
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handler : function (event) {
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that.notebook.to_heading(undefined, 4);
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return false;
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}
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},
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'5' : {
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help : 'to heading 5',
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help_index : 'ch',
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handler : function (event) {
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that.notebook.to_heading(undefined, 5);
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return false;
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}
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},
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'6' : {
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help : 'to heading 6',
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help_index : 'ci',
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handler : function (event) {
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that.notebook.to_heading(undefined, 6);
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return false;
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}
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},
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'o' : {
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help : 'toggle output',
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help_index : 'gb',
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handler : function (event) {
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that.notebook.toggle_output();
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return false;
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}
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},
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'shift-o' : {
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help : 'toggle output scrolling',
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help_index : 'gc',
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handler : function (event) {
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that.notebook.toggle_output_scroll();
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return false;
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}
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},
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's' : {
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help : 'save notebook',
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help_index : 'fa',
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handler : function (event) {
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that.notebook.save_checkpoint();
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return false;
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}
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},
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'ctrl-j' : {
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help : 'move cell down',
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help_index : 'eb',
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handler : function (event) {
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that.notebook.move_cell_down();
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return false;
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}
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},
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'ctrl-k' : {
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help : 'move cell up',
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help_index : 'ea',
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handler : function (event) {
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that.notebook.move_cell_up();
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return false;
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}
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},
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'l' : {
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help : 'toggle line numbers',
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help_index : 'ga',
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handler : function (event) {
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that.notebook.cell_toggle_line_numbers();
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return false;
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}
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},
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'i' : {
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help : 'interrupt kernel (press twice)',
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help_index : 'ha',
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count: 2,
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handler : function (event) {
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that.notebook.kernel.interrupt();
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return false;
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}
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},
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'0' : {
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help : 'restart kernel (press twice)',
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help_index : 'hb',
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count: 2,
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handler : function (event) {
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that.notebook.restart_kernel();
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return false;
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}
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},
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'h' : {
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help : 'keyboard shortcuts',
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help_index : 'ge',
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handler : function (event) {
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that.quick_help.show_keyboard_shortcuts();
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return false;
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}
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},
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'z' : {
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help : 'undo last delete',
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help_index : 'ei',
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handler : function (event) {
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that.notebook.undelete_cell();
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return false;
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}
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},
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'shift-m' : {
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help : 'merge cell below',
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help_index : 'ek',
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handler : function (event) {
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that.notebook.merge_cell_below();
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return false;
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}
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},
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'q' : {
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help : 'close pager',
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help_index : 'gd',
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handler : function (event) {
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that.pager.collapse();
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return false;
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}
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},
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};
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};
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KeyboardManager.prototype.bind_events = function () {
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var that = this;
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$(document).keydown(function (event) {
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return that.handle_keydown(event);
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});
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};
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KeyboardManager.prototype.handle_keydown = function (event) {
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var notebook = this.notebook;
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if (event.which === keycodes.esc) {
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// Intercept escape at highest level to avoid closing
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// websocket connection with firefox
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event.preventDefault();
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}
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if (!this.enabled) {
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if (event.which === keycodes.esc) {
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// ESC
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notebook.command_mode();
|
|
|
return false;
|
|
|
}
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
if (this.mode === 'edit') {
|
|
|
return this.edit_shortcuts.call_handler(event);
|
|
|
} else if (this.mode === 'command') {
|
|
|
return this.command_shortcuts.call_handler(event);
|
|
|
}
|
|
|
return true;
|
|
|
};
|
|
|
|
|
|
KeyboardManager.prototype.edit_mode = function () {
|
|
|
this.last_mode = this.mode;
|
|
|
this.mode = 'edit';
|
|
|
};
|
|
|
|
|
|
KeyboardManager.prototype.command_mode = function () {
|
|
|
this.last_mode = this.mode;
|
|
|
this.mode = 'command';
|
|
|
};
|
|
|
|
|
|
KeyboardManager.prototype.enable = function () {
|
|
|
this.enabled = true;
|
|
|
};
|
|
|
|
|
|
KeyboardManager.prototype.disable = function () {
|
|
|
this.enabled = false;
|
|
|
};
|
|
|
|
|
|
KeyboardManager.prototype.register_events = function (e) {
|
|
|
var that = this;
|
|
|
var handle_focus = function () {
|
|
|
that.disable();
|
|
|
};
|
|
|
var handle_blur = function () {
|
|
|
that.enable();
|
|
|
};
|
|
|
e.on('focusin', handle_focus);
|
|
|
e.on('focusout', handle_blur);
|
|
|
// TODO: Very strange. The focusout event does not seem fire for the
|
|
|
// bootstrap textboxes on FF25&26... This works around that by
|
|
|
// registering focus and blur events recursively on all inputs within
|
|
|
// registered element.
|
|
|
e.find('input').blur(handle_blur);
|
|
|
e.on('DOMNodeInserted', function (event) {
|
|
|
var target = $(event.target);
|
|
|
if (target.is('input')) {
|
|
|
target.blur(handle_blur);
|
|
|
} else {
|
|
|
target.find('input').blur(handle_blur);
|
|
|
}
|
|
|
});
|
|
|
// There are times (raw_input) where we remove the element from the DOM before
|
|
|
// focusout is called. In this case we bind to the remove event of jQueryUI,
|
|
|
// which gets triggered upon removal, iff it is focused at the time.
|
|
|
// is_focused must be used to check for the case where an element within
|
|
|
// the element being removed is focused.
|
|
|
e.on('remove', function () {
|
|
|
if (utils.is_focused(e[0])) {
|
|
|
that.enable();
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
// For backwards compatability.
|
|
|
IPython.KeyboardManager = KeyboardManager;
|
|
|
|
|
|
return KeyboardManager;
|
|
|
|
|
|
});
|
|
|
|
