mirror/notebook
2
0
Fork 0
mirror of https://github.com/jupyter/notebook.git synced 2025-02-05 12:19:58 +08:00
Code Issues Packages Projects Releases Wiki Activity

Document set_state_callbacks and,

Browse Source 
make load_state callback support promises.
This commit is contained in:
Jonathan Frederic 2014-12-01 13:40:38 -08:00 committed by Jonathan Frederic
parent 0c737867fe
commit a56a6f5657
1 changed files with 18 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
IPython/html/static/widgets/js/manager.js
View File

@ -31,12 +31,14 @@ define([
// Load the initial state of the widget manager if a load callback was
// registered.
var that = this;
if (WidgetManager._load_callback) {
this.set_state(WidgetManager._load_callback.call(this));
Promise.resolve(WidgetManager._load_callback.call(this)).then(function(state) {
that.set_state(state);
}).catch(utils.reject('Error loading widget manager state', true));
}
// Setup state saving code.
var that = this;
this.notebook.events.on('before_save.Notebook', function() {
var save_callback = WidgetManager._save_callback;
var options = WidgetManager._get_state_options;
@ -69,6 +71,17 @@ define([
WidgetManager.set_state_callbacks = function (load_callback, save_callback, options) {
// Registers callbacks for widget state persistence.
//
// Parameters
// ----------
// load_callback: function()
// function that is called when the widget manager state should be
// loaded. This function should return a promise for the widget
// manager state. An empty state is an empty dictionary `{}`.
// save_callback: function(state as dictionary)
// function that is called when the notebook is saved or autosaved.
// The current state of the widget manager is passed in as the first
// argument.
WidgetManager._load_callback = load_callback;
WidgetManager._save_callback = save_callback;
WidgetManager._get_state_options = options;
@ -76,7 +89,9 @@ define([
// Use the load callback to immediately load widget states.
WidgetManager._managers.forEach(function(manager) {
if (load_callback) {
manager.set_state(load_callback.call(manager));
Promise.resolve(load_callback.call(manager)).then(function(state) {
manager.set_state(state);
}).catch(utils.reject('Error loading widget manager state', true));
}
});
};