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//----------------------------------------------------------------------------
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// Copyright (C) 2013 The IPython Development Team
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//
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// Distributed under the terms of the BSD License. The full license is in
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// the file COPYING, distributed as part of this software.
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//----------------------------------------------------------------------------
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//============================================================================
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// FloatRangeWidget
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//============================================================================
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/**
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* @module IPython
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* @namespace IPython
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**/
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define(["notebook/js/widgets/widget"], function(widget_manager){
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var FloatRangeWidgetModel = IPython.WidgetModel.extend({});
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widget_manager.register_widget_model('FloatRangeWidgetModel', FloatRangeWidgetModel);
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var FloatSliderView = IPython.DOMWidgetView.extend({
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// Called when view is rendered.
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render : function(){
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this.$el
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.addClass('widget-hbox-single')
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.html('');
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this.$label = $('<div />')
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.appendTo(this.$el)
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.addClass('widget-hlabel')
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.hide();
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this.$slider = $('<div />')
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.slider({})
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.addClass('slider');
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// Put the slider in a container
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this.$slider_container = $('<div />')
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.addClass('widget-hslider')
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.append(this.$slider);
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this.$el_to_style = this.$slider_container; // Set default element to style
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this.$el.append(this.$slider_container);
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// Set defaults.
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this.update();
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},
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update : function(){
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// Update the contents of this view
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//
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// Called when the model is changed. The model may have been
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// changed by another view or by a state update from the back-end.
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// Slider related keys.
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var _keys = ['step', 'max', 'min', 'disabled'];
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for (var index in _keys) {
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var key = _keys[index];
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if (this.model.get(key) !== undefined) {
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this.$slider.slider("option", key, this.model.get(key));
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}
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}
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// WORKAROUND FOR JQUERY SLIDER BUG.
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// The horizontal position of the slider handle
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// depends on the value of the slider at the time
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// of orientation change. Before applying the new
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// workaround, we set the value to the minimum to
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// make sure that the horizontal placement of the
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// handle in the vertical slider is always
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// consistent.
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var orientation = this.model.get('orientation');
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var value = this.model.get('min');
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this.$slider.slider('option', 'value', value);
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this.$slider.slider('option', 'orientation', orientation);
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value = this.model.get('value');
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this.$slider.slider('option', 'value', value);
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// Use the right CSS classes for vertical & horizontal sliders
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if (orientation=='vertical') {
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this.$slider_container
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.removeClass('widget-hslider')
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.addClass('widget-vslider');
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this.$el
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.removeClass('widget-hbox-single')
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.addClass('widget-vbox-single');
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this.$label
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.removeClass('widget-hlabel')
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.addClass('widget-vlabel');
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} else {
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this.$slider_container
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.removeClass('widget-vslider')
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.addClass('widget-hslider');
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this.$el
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.removeClass('widget-vbox-single')
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.addClass('widget-hbox-single');
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this.$label
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.removeClass('widget-vlabel')
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.addClass('widget-hlabel');
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}
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var description = this.model.get('description');
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if (description.length === 0) {
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this.$label.hide();
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} else {
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this.$label.html(description);
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this.$label.show();
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}
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return IPython.DOMWidgetView.prototype.update.call(this);
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},
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// Handles: User input
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events: { "slide" : "handleSliderChange" },
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handleSliderChange: function(e, ui) {
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// Calling model.set will trigger all of the other views of the
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// model to update.
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this.model.set('value', ui.value);
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this.touch();
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},
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});
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widget_manager.register_widget_view('FloatSliderView', FloatSliderView);
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var FloatTextView = IPython.DOMWidgetView.extend({
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// Called when view is rendered.
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render : function(){
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this.$el
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.addClass('widget-hbox-single')
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.html('');
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this.$label = $('<div />')
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.appendTo(this.$el)
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.addClass('widget-hlabel')
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.hide();
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this.$textbox = $('<input type="text" />')
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.addClass('input')
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.addClass('widget-numeric-text')
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.appendTo(this.$el);
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this.$el_to_style = this.$textbox; // Set default element to style
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this.update(); // Set defaults.
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},
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update : function(){
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// Update the contents of this view
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//
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// Called when the model is changed. The model may have been
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// changed by another view or by a state update from the back-end.
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var value = this.model.get('value');
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if (!this.changing && parseFloat(this.$textbox.val()) != value) {
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this.$textbox.val(value);
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}
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if (this.model.get('disabled')) {
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this.$textbox.attr('disabled','disabled');
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} else {
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this.$textbox.removeAttr('disabled');
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}
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var description = this.model.get('description');
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if (description.length === 0) {
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this.$label.hide();
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} else {
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this.$label.html(description);
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this.$label.show();
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}
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return IPython.DOMWidgetView.prototype.update.call(this);
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},
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events: {"keyup input" : "handleChanging",
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"paste input" : "handleChanging",
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"cut input" : "handleChanging",
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"change input" : "handleChanged"}, // Fires only when control is validated or looses focus.
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// Handles and validates user input.
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handleChanging: function(e) {
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// Try to parse value as a float.
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var numericalValue = 0.0;
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if (e.target.value !== '') {
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numericalValue = parseFloat(e.target.value);
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}
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// If parse failed, reset value to value stored in model.
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if (isNaN(numericalValue)) {
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e.target.value = this.model.get('value');
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} else if (!isNaN(numericalValue)) {
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if (this.model.get('max') !== undefined) {
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numericalValue = Math.min(this.model.get('max'), numericalValue);
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}
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if (this.model.get('min') !== undefined) {
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numericalValue = Math.max(this.model.get('min'), numericalValue);
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}
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// Apply the value if it has changed.
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if (numericalValue != this.model.get('value')) {
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this.changing = true;
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// Calling model.set will trigger all of the other views of the
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// model to update.
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this.model.set('value', numericalValue);
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this.touch();
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this.changing = false;
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}
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}
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},
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// Applies validated input.
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handleChanged: function(e) {
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// Update the textbox
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if (this.model.get('value') != e.target.value) {
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e.target.value = this.model.get('value');
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}
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}
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});
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widget_manager.register_widget_view('FloatTextView', FloatTextView);
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var ProgressView = IPython.DOMWidgetView.extend({
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// Called when view is rendered.
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render : function(){
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this.$el
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.addClass('widget-hbox-single')
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.html('');
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this.$label = $('<div />')
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.appendTo(this.$el)
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.addClass('widget-hlabel')
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.hide();
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this.$progress = $('<div />')
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.addClass('progress')
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.addClass('widget-progress')
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.appendTo(this.$el);
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this.$el_to_style = this.$progress; // Set default element to style
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this.$bar = $('<div />')
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.addClass('bar')
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.css('width', '50%')
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.appendTo(this.$progress);
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this.update(); // Set defaults.
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},
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update : function(){
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// Update the contents of this view
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//
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// Called when the model is changed. The model may have been
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// changed by another view or by a state update from the back-end.
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var value = this.model.get('value');
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var max = this.model.get('max');
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var min = this.model.get('min');
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var percent = 100.0 * (value - min) / (max - min);
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this.$bar.css('width', percent + '%');
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var description = this.model.get('description');
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if (description.length === 0) {
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this.$label.hide();
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} else {
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this.$label.html(description);
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this.$label.show();
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}
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return IPython.DOMWidgetView.prototype.update.call(this);
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},
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});
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widget_manager.register_widget_view('ProgressView', ProgressView);
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});
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