mirror of
https://github.com/jupyter/notebook.git
synced 2025-01-24 12:05:22 +08:00
Added widjet.js
Other commit actually added notebook.js changes
This commit is contained in:
Jonathan Frederic
parent
918d57050a
commit
0230fa8c09
229
IPython/html/static/notebook/js/widget.js
Normal file
229
IPython/html/static/notebook/js/widget.js
Normal file
@ -0,0 +1,229 @@
|
||||
//----------------------------------------------------------------------------
|
||||
// Copyright (C) 2013 The IPython Development Team
|
||||
//
|
||||
// Distributed under the terms of the BSD License. The full license is in
|
||||
// the file COPYING, distributed as part of this software.
|
||||
//----------------------------------------------------------------------------
|
||||
|
||||
//============================================================================
|
||||
// WidgetModel, WidgetView, and WidgetManager
|
||||
//============================================================================
|
||||
/**
|
||||
* Base Widget classes
|
||||
* @module IPython
|
||||
* @namespace IPython
|
||||
* @submodule widget
|
||||
*/
|
||||
|
||||
|
||||
// require(['components/underscore/underscore-min.js',
|
||||
// 'components/backbone/backbone-min.js'],
|
||||
|
||||
var IPython = function (IPython) {
|
||||
"use strict";
|
||||
|
||||
//-----------------------------------------------------------------------
|
||||
// WidgetModel class
|
||||
//-----------------------------------------------------------------------
|
||||
var WidgetModel = Backbone.Model.extend({});
|
||||
|
||||
|
||||
//-----------------------------------------------------------------------
|
||||
// WidgetView class
|
||||
//-----------------------------------------------------------------------
|
||||
var WidgetView = Backbone.View.extend({
|
||||
|
||||
initialize: function() {
|
||||
this.model.on('change',this.refresh,this);
|
||||
},
|
||||
|
||||
refresh: function() {
|
||||
this.update();
|
||||
|
||||
if (this.model.css != undefined) {
|
||||
for (var selector in this.model.css) {
|
||||
if (this.model.css.hasOwnProperty(selector)) {
|
||||
|
||||
// Get the elements via the css selector. If the selector is
|
||||
// blank, assume the current element is the target.
|
||||
var elements = this.$el.find(selector);
|
||||
if (selector=='') {
|
||||
elements = this.$el;
|
||||
}
|
||||
|
||||
// Apply the css traits to all elements that match the selector.
|
||||
if (elements.length>0){
|
||||
var css_traits = this.model.css[selector];
|
||||
for (var css_key in css_traits) {
|
||||
if (css_traits.hasOwnProperty(css_key)) {
|
||||
elements.css(css_key, css_traits[css_key]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
},
|
||||
});
|
||||
|
||||
|
||||
//-----------------------------------------------------------------------
|
||||
// WidgetManager class
|
||||
//-----------------------------------------------------------------------
|
||||
// Public constructor
|
||||
var WidgetManager = function(comm_manager){
|
||||
this.comm_manager = comm_manager;
|
||||
this.widget_model_types = {};
|
||||
this.widget_view_types = {};
|
||||
this.model_widget_views = {};
|
||||
|
||||
var that = this;
|
||||
Backbone.sync = function(method, model, options, error) {
|
||||
var result = that.send_sync(method, model);
|
||||
if (options.success) {
|
||||
options.success(result);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
// Register a widget model type.
|
||||
WidgetManager.prototype.register_widget_model = function (widget_model_name, widget_model_type) {
|
||||
|
||||
// Register the widget with the comm manager. Make sure to pass this object's context
|
||||
// in so `this` works in the call back.
|
||||
this.comm_manager.register_target(widget_model_name, $.proxy(this.handle_com_open, this));
|
||||
|
||||
// Register the types of the model and view correspong to this widget type. Later
|
||||
// the widget manager will initialize these when the comm is opened.
|
||||
this.widget_model_types[widget_model_name] = widget_model_type;
|
||||
}
|
||||
|
||||
// Register a widget view type.
|
||||
WidgetManager.prototype.register_widget_view = function (widget_view_name, widget_view_type) {
|
||||
this.widget_view_types[widget_view_name] = widget_view_type;
|
||||
}
|
||||
|
||||
// Handle when a comm is opened.
|
||||
WidgetManager.prototype.handle_com_open = function (comm, msg) {
|
||||
var widget_type_name = msg.content.target_name;
|
||||
|
||||
// Create the corresponding widget model.
|
||||
var widget_model = new this.widget_model_types[widget_type_name];
|
||||
|
||||
// Remember comm associated with the model.
|
||||
widget_model.comm = comm;
|
||||
comm.model = widget_model;
|
||||
|
||||
// Create an array to remember the views associated with the model.
|
||||
widget_model.views = [];
|
||||
|
||||
// Add a handle to delete the control when the comm is closed.
|
||||
var that = this;
|
||||
var handle_close = function(msg) {
|
||||
that.handle_comm_closed(comm, msg);
|
||||
}
|
||||
comm.on_close(handle_close);
|
||||
|
||||
// Handle incomming messages.
|
||||
var handle_msg = function(msg) {
|
||||
that.handle_comm_msg(comm, msg);
|
||||
}
|
||||
comm.on_msg(handle_msg);
|
||||
}
|
||||
|
||||
// Create view that represents the model.
|
||||
WidgetManager.prototype.show_view = function (widget_area, widget_model, widget_view_name) {
|
||||
var widget_view = new this.widget_view_types[widget_view_name]({model: widget_model});
|
||||
widget_view.render();
|
||||
widget_model.views.push(widget_view);
|
||||
|
||||
// Add the view's element to cell's widget div.
|
||||
widget_area
|
||||
.append($("<div />").append(widget_view.$el));
|
||||
|
||||
// Update the view based on the model contents.
|
||||
widget_view.refresh();
|
||||
}
|
||||
|
||||
// Handle incomming comm msg.
|
||||
WidgetManager.prototype.handle_comm_msg = function (comm, msg) {
|
||||
// Different logic for different methods.
|
||||
var method = msg.content.data.method;
|
||||
switch (method){
|
||||
case 'show':
|
||||
|
||||
// TODO: Get cell from registered output handler.
|
||||
var cell = IPython.notebook.get_cell(IPython.notebook.get_selected_index()-1);
|
||||
var widget_subarea = cell.element.find('.widget_area').find('.widget_subarea');
|
||||
|
||||
if (msg.content.data.parent != undefined) {
|
||||
var find_results = widget_subarea.find("." + msg.content.data.parent);
|
||||
if (find_results.length > 0) {
|
||||
widget_subarea = find_results;
|
||||
}
|
||||
}
|
||||
|
||||
this.show_view(widget_subarea, comm.model, msg.content.data.view_name);
|
||||
break;
|
||||
case 'update':
|
||||
this.handle_update(comm, msg.content.data.state);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Handle when a widget is updated via the python side.
|
||||
WidgetManager.prototype.handle_update = function (comm, state) {
|
||||
for (var key in state) {
|
||||
if (state.hasOwnProperty(key)) {
|
||||
if (key=="_css"){
|
||||
comm.model.css = state[key];
|
||||
} else {
|
||||
comm.model.set(key, state[key]);
|
||||
}
|
||||
}
|
||||
}
|
||||
comm.model.save();
|
||||
}
|
||||
|
||||
// Handle when a widget is closed.
|
||||
WidgetManager.prototype.handle_comm_closed = function (comm, msg) {
|
||||
for (var view_index in comm.model.views) {
|
||||
var view = comm.model.views[view_index];
|
||||
view.remove();
|
||||
}
|
||||
}
|
||||
|
||||
// Get the cell output area corresponding to the comm.
|
||||
WidgetManager.prototype._get_comm_outputarea = function (comm) {
|
||||
// TODO: get element from comm instead of guessing
|
||||
var cell = IPython.notebook.get_cell(IPython.notebook.get_selected_index())
|
||||
return cell.output_area;
|
||||
}
|
||||
|
||||
// Send widget state to python backend.
|
||||
WidgetManager.prototype.send_sync = function (method, model) {
|
||||
|
||||
// Create a callback for the output if the widget has an output area associate with it.
|
||||
var callbacks = {};
|
||||
var comm = model.comm;
|
||||
var outputarea = this._get_comm_outputarea(comm);
|
||||
if (outputarea != null) {
|
||||
callbacks = {
|
||||
iopub : {
|
||||
output : $.proxy(outputarea.handle_output, outputarea),
|
||||
clear_output : $.proxy(outputarea.handle_clear_output, outputarea)}
|
||||
};
|
||||
};
|
||||
|
||||
var data = {sync_method: method, sync_data: model.toJSON()};
|
||||
comm.send(data, callbacks);
|
||||
return data;
|
||||
}
|
||||
|
||||
IPython.WidgetManager = WidgetManager;
|
||||
IPython.WidgetModel = WidgetModel;
|
||||
IPython.WidgetView = WidgetView;
|
||||
|
||||
return IPython;
|
||||
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user