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Explicitly return null if there aren't any results
Explicitly return null if there aren't any results

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widget_selectioncontainer.js
242 lines | 9.7 KiB | application/javascript | JavascriptLexer
/ IPython / html / static / notebook / js / widgets / widget_selectioncontainer.js
//----------------------------------------------------------------------------
// 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.
//----------------------------------------------------------------------------
//============================================================================
// SelectionContainerWidget
//============================================================================
/**
* @module IPython
* @namespace IPython
**/
define(["notebook/js/widgets/widget"], function(WidgetManager){
var AccordionView = IPython.DOMWidgetView.extend({
render: function(){
// Called when view is rendered.
var guid = 'accordion' + IPython.utils.uuid();
this.$el
.attr('id', guid)
.addClass('accordion');
this.containers = [];
this.model_containers = {};
this.update_children([], this.model.get('_children'));
this.model.on('change:_children', function(model, value, options) {
this.update_children(model.previous('_children'), value);
}, this);
},
update: function(options) {
// Update the contents of this view
//
// Called when the model is changed. The model may have been
// changed by another view or by a state update from the back-end.
if (options === undefined || options.updated_view != this) {
// Set tab titles
var titles = this.model.get('_titles');
_.each(titles, function(title, page_index) {
var accordian = this.containers[page_index];
if (accordian !== undefined) {
accordian
.find('.accordion-heading')
.find('.accordion-toggle')
.text(title);
}
});
// Set selected page
var selected_index = this.model.get("selected_index");
if (0 <= selected_index && selected_index < this.containers.length) {
_.each(this.containers, function(container, index) {
if (index==selected_index) {
container.find('.accordion-body').collapse('show');
} else {
container.find('.accordion-body').collapse('hide');
}
});
}
}
return AccordionView.__super__.update.apply(this);
},
update_children: function(old_list, new_list) {
// Called when the children list is modified.
this.do_diff(old_list,
new_list,
$.proxy(this.remove_child_model, this),
$.proxy(this.add_child_model, this));
},
remove_child_model: function(model) {
// Called when a child is removed from children list.
var accordion_group = this.model_containers[model.id];
this.containers.splice(accordion_group.container_index, 1);
delete this.model_containers[model.id];
accordion_group.remove();
this.delete_child_view(model);
},
add_child_model: function(model) {
// Called when a child is added to children list.
var view = this.create_child_view(model);
var index = this.containers.length;
var uuid = IPython.utils.uuid();
var accordion_group = $('<div />')
.addClass('accordion-group')
.appendTo(this.$el);
var accordion_heading = $('<div />')
.addClass('accordion-heading')
.appendTo(accordion_group);
var that = this;
var accordion_toggle = $('<a />')
.addClass('accordion-toggle')
.attr('data-toggle', 'collapse')
.attr('data-parent', '#' + this.$el.attr('id'))
.attr('href', '#' + uuid)
.click(function(evt){
// Calling model.set will trigger all of the other views of the
// model to update.
that.model.set("selected_index", index, {updated_view: this});
that.touch();
})
.text('Page ' + index)
.appendTo(accordion_heading);
var accordion_body = $('<div />', {id: uuid})
.addClass('accordion-body collapse')
.appendTo(accordion_group);
var accordion_inner = $('<div />')
.addClass('accordion-inner')
.appendTo(accordion_body);
var container_index = this.containers.push(accordion_group) - 1;
accordion_group.container_index = container_index;
this.model_containers[model.id] = accordion_group;
accordion_inner.append(view.$el);
this.update();
// Stupid workaround to close the bootstrap accordion tabs which
// open by default even though they don't have the `in` class
// attached to them. For some reason a delay is required.
// TODO: Better fix.
setTimeout(function(){ that.update(); }, 500);
},
});
WidgetManager.register_widget_view('AccordionView', AccordionView);
var TabView = IPython.DOMWidgetView.extend({
initialize: function() {
// Public constructor.
this.containers = [];
TabView.__super__.initialize.apply(this, arguments);
},
render: function(){
// Called when view is rendered.
var uuid = 'tabs'+IPython.utils.uuid();
var that = this;
this.$tabs = $('<div />', {id: uuid})
.addClass('nav')
.addClass('nav-tabs')
.appendTo(this.$el);
this.$tab_contents = $('<div />', {id: uuid + 'Content'})
.addClass('tab-content')
.appendTo(this.$el);
this.containers = [];
this.update_children([], this.model.get('_children'));
this.model.on('change:_children', function(model, value, options) {
this.update_children(model.previous('_children'), value);
}, this);
},
update_children: function(old_list, new_list) {
// Called when the children list is modified.
this.do_diff(old_list,
new_list,
$.proxy(this.remove_child_model, this),
$.proxy(this.add_child_model, this));
},
remove_child_model: function(model) {
// Called when a child is removed from children list.
var view = this.child_views[model.id];
this.containers.splice(view.parent_tab.tab_text_index, 1);
view.parent_tab.remove();
view.parent_container.remove();
view.remove();
this.delete_child_view(model);
},
add_child_model: function(model) {
// Called when a child is added to children list.
var view = this.create_child_view(model);
var index = this.containers.length;
var uuid = IPython.utils.uuid();
var that = this;
var tab = $('<li />')
.css('list-style-type', 'none')
.appendTo(this.$tabs);
view.parent_tab = tab;
var tab_text = $('<a />')
.attr('href', '#' + uuid)
.attr('data-toggle', 'tab')
.text('Page ' + index)
.appendTo(tab)
.click(function (e) {
// Calling model.set will trigger all of the other views of the
// model to update.
that.model.set("selected_index", index, {updated_view: this});
that.touch();
that.select_page(index);
});
tab.tab_text_index = this.containers.push(tab_text) - 1;
var contents_div = $('<div />', {id: uuid})
.addClass('tab-pane')
.addClass('fade')
.append(view.$el)
.appendTo(this.$tab_contents);
view.parent_container = contents_div;
},
update: function(options) {
// Update the contents of this view
//
// Called when the model is changed. The model may have been
// changed by another view or by a state update from the back-end.
if (options === undefined || options.updated_view != this) {
// Set tab titles
var titles = this.model.get('_titles');
_.each(titles, function(title, page_index) {
var tab_text = this.containers[page_index];
if (tab_text !== undefined) {
tab_text.text(title);
}
});
var selected_index = this.model.get('selected_index');
if (0 <= selected_index && selected_index < this.containers.length) {
this.select_page(selected_index);
}
}
return TabView.__super__.update.apply(this);
},
select_page: function(index) {
// Select a page.
this.$tabs.find('li')
.removeClass('active');
this.containers[index].tab('show');
},
});
WidgetManager.register_widget_view('TabView', TabView);
});