mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-10-31 23:26:18 +00:00
c974858cf5
* Adds a range widget Adds a range widget that supports all the range attributes on a input[type=range] element. These include min max and increment. * Update range.js * Fix spaces vs tabs. * Added documentation.
115 lines
3.2 KiB
JavaScript
115 lines
3.2 KiB
JavaScript
/*\
|
|
title: $:/core/modules/widgets/range.js
|
|
type: application/javascript
|
|
module-type: widget
|
|
|
|
Range widget
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
var Widget = require("$:/core/modules/widgets/widget.js").widget;
|
|
|
|
var RangeWidget = function(parseTreeNode,options) {
|
|
this.initialise(parseTreeNode,options);
|
|
};
|
|
|
|
/*
|
|
Inherit from the base widget class
|
|
*/
|
|
RangeWidget.prototype = new Widget();
|
|
|
|
/*
|
|
Render this widget into the DOM
|
|
*/
|
|
RangeWidget.prototype.render = function(parent,nextSibling) {
|
|
// Save the parent dom node
|
|
this.parentDomNode = parent;
|
|
// Compute our attributes
|
|
this.computeAttributes();
|
|
// Execute our logic
|
|
this.execute();
|
|
// Create our elements
|
|
this.inputDomNode = this.document.createElement("input");
|
|
this.inputDomNode.setAttribute("type","range");
|
|
this.inputDomNode.setAttribute("class",this.elementClass);
|
|
if(this.minValue){
|
|
this.inputDomNode.setAttribute("min", this.minValue);
|
|
}
|
|
if(this.maxValue){
|
|
this.inputDomNode.setAttribute("max", this.maxValue);
|
|
}
|
|
if(this.increment){
|
|
this.inputDomNode.setAttribute("step", this.increment);
|
|
}
|
|
this.inputDomNode.value = this.getValue();
|
|
|
|
|
|
// Add a click event handler
|
|
$tw.utils.addEventListeners(this.inputDomNode,[
|
|
{name: "input", handlerObject: this, handlerMethod: "handleChangeEvent"}
|
|
]);
|
|
// Insert the label into the DOM and render any children
|
|
parent.insertBefore(this.inputDomNode,nextSibling);
|
|
this.domNodes.push(this.inputDomNode);
|
|
};
|
|
|
|
RangeWidget.prototype.getValue = function() {
|
|
var tiddler = this.wiki.getTiddler(this.tiddlerTitle),
|
|
value = this.defaultValue;
|
|
if(tiddler) {
|
|
if($tw.utils.hop(tiddler.fields,this.tiddlerField)) {
|
|
value = tiddler.fields[this.tiddlerField] || "";
|
|
} else {
|
|
value = this.defaultValue || "";
|
|
}
|
|
}
|
|
return value;
|
|
};
|
|
|
|
RangeWidget.prototype.handleChangeEvent = function(event) {
|
|
this.wiki.setText(this.tiddlerTitle ,this.tiddlerField, null,this.inputDomNode.value);
|
|
};
|
|
|
|
/*
|
|
Compute the internal state of the widget
|
|
*/
|
|
RangeWidget.prototype.execute = function() {
|
|
// Get the parameters from the attributes
|
|
this.tiddlerTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
|
|
this.tiddlerField = this.getAttribute("field");
|
|
this.minValue = this.getAttribute("min");
|
|
this.maxValue = this.getAttribute("max");
|
|
this.increment = this.getAttribute("increment");
|
|
this.defaultValue = this.getAttribute("default");
|
|
this.elementClass = this.getAttribute("class","");
|
|
// Make the child widgets
|
|
this.makeChildWidgets();
|
|
};
|
|
|
|
/*
|
|
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
|
|
*/
|
|
RangeWidget.prototype.refresh = function(changedTiddlers) {
|
|
var changedAttributes = this.computeAttributes();
|
|
if(changedAttributes.tiddler || changedAttributes.field || changedAttributes['min'] || changedAttributes['max'] || changedAttributes['increment'] || changedAttributes["default"] || changedAttributes["class"]) {
|
|
this.refreshSelf();
|
|
return true;
|
|
} else {
|
|
var refreshed = false;
|
|
if(changedTiddlers[this.tiddlerTitle]) {
|
|
this.inputDomNode.checked = this.getValue();
|
|
refreshed = true;
|
|
}
|
|
return this.refreshChildren(changedTiddlers) || refreshed;
|
|
}
|
|
};
|
|
|
|
exports.range = RangeWidget;
|
|
|
|
})();
|