/
notificationarea.js
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/
notificationarea.js
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define([
'base/js/utils',
'base/js/dialog',
'base/js/notificationarea',
'moment'
], function(utils, dialog, notificationarea, moment) {
"use strict";
var NotificationArea = notificationarea.NotificationArea;
var NotebookNotificationArea = function(selector, options) {
NotificationArea.apply(this, [selector, options]);
this.save_widget = options.save_widget;
this.notebook = options.notebook;
this.keyboard_manager = options.keyboard_manager;
};
NotebookNotificationArea.prototype = Object.create(NotificationArea.prototype);
/**
* Initialize the default set of notification widgets.
*
* @method init_notification_widgets
*/
NotebookNotificationArea.prototype.init_notification_widgets = function () {
this.init_kernel_notification_widget();
this.init_notebook_notification_widget();
this.init_trusted_notebook_notification_widget();
};
/**
* Initialize the notification widget for kernel status messages.
*
* @method init_kernel_notification_widget
*/
NotebookNotificationArea.prototype.init_kernel_notification_widget = function () {
var that = this;
var knw = this.widget('kernel');
var $kernel_ind_icon = $("#kernel_indicator_icon");
var $modal_ind_icon = $("#modal_indicator");
var $readonly_ind_icon = $('#readonly-indicator');
var $body = $('body');
// Listen for the notebook loaded event. Set readonly indicator.
this.events.on('notebook_loaded.Notebook', function() {
if (that.notebook.writable) {
$readonly_ind_icon.hide();
} else {
$readonly_ind_icon.show();
}
});
// Command/Edit mode
this.events.on('edit_mode.Notebook', function () {
that.save_widget.update_document_title();
$body.addClass('edit_mode');
$body.removeClass('command_mode');
$modal_ind_icon.attr('title','Edit Mode');
});
this.events.on('command_mode.Notebook', function () {
that.save_widget.update_document_title();
$body.removeClass('edit_mode');
$body.addClass('command_mode');
$modal_ind_icon.attr('title','Command Mode');
});
// Implicitly start off in Command mode, switching to Edit mode will trigger event
$modal_ind_icon.addClass('modal_indicator').attr('title','Command Mode');
$body.addClass('command_mode');
// Kernel events
// this can be either kernel_created.Kernel or kernel_created.Session
this.events.on('kernel_created.Kernel kernel_created.Session', function () {
knw.info("Kernel Created", 500);
});
this.events.on('kernel_reconnecting.Kernel', function () {
knw.warning("Connecting to kernel");
});
this.events.on('kernel_connection_dead.Kernel', function (evt, info) {
knw.danger("Not Connected", undefined, function () {
// schedule reconnect a short time in the future, don't reconnect immediately
setTimeout($.proxy(info.kernel.reconnect, info.kernel), 500);
}, {title: 'click to reconnect'});
});
this.events.on('kernel_connected.Kernel', function () {
knw.info("Connected", 500);
});
this.events.on('kernel_restarting.Kernel', function () {
that.save_widget.update_document_title();
knw.set_message("Restarting kernel", 2000);
});
this.events.on('kernel_autorestarting.Kernel', function (evt, info) {
// Only show the dialog on the first restart attempt. This
// number gets tracked by the `Kernel` object and passed
// along here, because we don't want to show the user 5
// dialogs saying the same thing (which is the number of
// times it tries restarting).
if (info.attempt === 1) {
dialog.kernel_modal({
notebook: that.notebook,
keyboard_manager: that.keyboard_manager,
title: "Kernel Restarting",
body: "The kernel appears to have died. It will restart automatically.",
buttons: {
OK : {
class : "btn-primary"
}
}
});
}
that.save_widget.update_document_title();
knw.danger("Dead kernel");
$kernel_ind_icon.attr('class','kernel_dead_icon').attr('title','Kernel Dead');
});
this.events.on('kernel_interrupting.Kernel', function () {
knw.set_message("Interrupting kernel", 2000);
});
this.events.on('kernel_disconnected.Kernel', function () {
$kernel_ind_icon
.attr('class', 'kernel_disconnected_icon')
.attr('title', 'No Connection to Kernel');
});
this.events.on('kernel_connection_failed.Kernel', function (evt, info) {
// only show the dialog if this is the first failed
// connect attempt, because the kernel will continue
// trying to reconnect and we don't want to spam the user
// with messages
if (info.attempt === 1) {
var msg = "A connection to the notebook server could not be established." +
" The notebook will continue trying to reconnect. Check your" +
" network connection or notebook server configuration.";
dialog.kernel_modal({
title: "Connection failed",
body: msg,
keyboard_manager: that.keyboard_manager,
notebook: that.notebook,
buttons : {
"OK": {}
}
});
}
});
this.events.on('kernel_killed.Kernel kernel_killed.Session', function () {
that.save_widget.update_document_title();
knw.warning("No kernel");
$kernel_ind_icon.attr('class','kernel_busy_icon').attr('title','Kernel is not running');
});
this.events.on('kernel_dead.Kernel', function () {
var showMsg = function () {
var msg = 'The kernel has died, and the automatic restart has failed.' +
' It is possible the kernel cannot be restarted.' +
' If you are not able to restart the kernel, you will still be able to save' +
' the notebook, but running code will no longer work until the notebook' +
' is reopened.';
dialog.kernel_modal({
title: "Dead kernel",
body : msg,
keyboard_manager: that.keyboard_manager,
notebook: that.notebook,
default_button: "Don't Restart",
buttons : {
"Don't Restart": {},
"Try Restarting Now": {
class: "btn-danger",
click: function () {
that.notebook.start_session();
}
}
}
});
return false;
};
that.save_widget.update_document_title();
knw.danger("Dead kernel", undefined, showMsg);
$kernel_ind_icon.attr('class','kernel_dead_icon').attr('title','Kernel Dead');
showMsg();
});
this.events.on("no_kernel.Kernel", function (evt, data) {
$("#kernel_indicator").find('.kernel_indicator_name').text("No Kernel");
});
this.events.on('kernel_dead.Session', function (evt, info) {
var full = info.xhr.responseJSON.message;
var short = info.xhr.responseJSON.short_message || 'Kernel error';
var traceback = info.xhr.responseJSON.traceback;
var showMsg = function () {
var msg = $('<div/>').append($('<p/>').text(full));
var cm, cm_elem, cm_open;
if (traceback) {
cm_elem = $('<div/>')
.css('margin-top', '1em')
.css('padding', '1em')
.addClass('output_scroll');
msg.append(cm_elem);
cm = new CodeMirror(cm_elem.get(0), {
mode: "python",
readOnly : true
});
cm.setValue(traceback);
cm_open = $.proxy(cm.refresh, cm);
}
dialog.kernel_modal({
title: "Failed to start the kernel",
body : msg,
keyboard_manager: that.keyboard_manager,
notebook: that.notebook,
open: cm_open,
buttons : {
"Ok": { class: 'btn-primary' }
}
});
return false;
};
that.save_widget.update_document_title();
$kernel_ind_icon.attr('class','kernel_dead_icon').attr('title','Kernel Dead');
knw.danger(short, undefined, showMsg);
});
this.events.on('kernel_starting.Kernel kernel_created.Session', function () {
window.document.title='(Starting) '+window.document.title;
$kernel_ind_icon.attr('class','kernel_busy_icon').attr('title','Kernel Busy');
knw.set_message("Kernel starting, please wait...");
});
this.events.on('kernel_ready.Kernel', function () {
that.save_widget.update_document_title();
$kernel_ind_icon.attr('class','kernel_idle_icon').attr('title','Kernel Idle');
knw.info("Kernel ready", 500);
});
this.events.on('kernel_idle.Kernel', function () {
that.save_widget.update_document_title();
$kernel_ind_icon.attr('class','kernel_idle_icon').attr('title','Kernel Idle');
});
this.events.on('kernel_busy.Kernel', function () {
window.document.title='(Busy) '+window.document.title;
$kernel_ind_icon.attr('class','kernel_busy_icon').attr('title','Kernel Busy');
});
this.events.on('spec_match_found.Kernel', function (evt, data) {
that.widget('kernelspec').info("Using kernel: " + data.found.spec.display_name, 3000, undefined, {
title: "Only candidate for language: " + data.selected.language + " was " + data.found.spec.display_name
});
});
// Start the kernel indicator in the busy state, and send a kernel_info request.
// When the kernel_info reply arrives, the kernel is idle.
$kernel_ind_icon.attr('class','kernel_busy_icon').attr('title','Kernel Busy');
};
/**
* Initialize the notification widget for notebook status messages.
*
* @method init_notebook_notification_widget
*/
NotebookNotificationArea.prototype.init_notebook_notification_widget = function () {
var nnw = this.widget('notebook');
// Notebook events
this.events.on('notebook_loading.Notebook', function () {
nnw.set_message("Loading notebook",500);
});
this.events.on('notebook_loaded.Notebook', function () {
nnw.set_message("Notebook loaded",500);
});
this.events.on('notebook_saving.Notebook', function () {
nnw.set_message("Saving notebook",500);
});
this.events.on('notebook_saved.Notebook', function () {
nnw.set_message("Notebook saved",2000);
});
this.events.on('notebook_save_failed.Notebook', function (evt, error) {
nnw.warning(error.message || "Notebook save failed");
});
this.events.on('notebook_copy_failed.Notebook', function (evt, error) {
nnw.warning(error.message || "Notebook copy failed");
});
// Checkpoint events
this.events.on('checkpoint_created.Notebook', function (evt, data) {
var msg = "Checkpoint created";
if (data.last_modified) {
var d = new Date(data.last_modified);
msg = msg + ": " + moment(d).format("HH:mm:ss");
}
nnw.set_message(msg, 2000);
});
this.events.on('checkpoint_failed.Notebook', function () {
nnw.warning("Checkpoint failed");
});
this.events.on('checkpoint_deleted.Notebook', function () {
nnw.set_message("Checkpoint deleted", 500);
});
this.events.on('checkpoint_delete_failed.Notebook', function () {
nnw.warning("Checkpoint delete failed");
});
this.events.on('checkpoint_restoring.Notebook', function () {
nnw.set_message("Restoring to checkpoint...", 500);
});
this.events.on('checkpoint_restore_failed.Notebook', function () {
nnw.warning("Checkpoint restore failed");
});
// Autosave events
this.events.on('autosave_disabled.Notebook', function () {
nnw.set_message("Autosave disabled", 2000);
});
this.events.on('autosave_enabled.Notebook', function (evt, interval) {
nnw.set_message("Saving every " + interval / 1000 + "s", 1000);
});
};
/**
* Initialize the notification widget for trusted notebook messages.
*
* @method init_trusted_notebook_notification_widget
*/
NotebookNotificationArea.prototype.init_trusted_notebook_notification_widget = function () {
var that = this;
var tnw = this.widget('trusted');
// Notebook trust events
this.events.on('trust_changed.Notebook', function (event, trusted) {
if (trusted) {
tnw.set_message("Trusted");
} else {
tnw.set_message("Not Trusted", undefined, function() {
that.notebook.trust_notebook();
return false;
});
}
});
};
return {'NotebookNotificationArea': NotebookNotificationArea};
});