mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-26 10:00:34 +00:00
130 lines
3.6 KiB
JavaScript
130 lines
3.6 KiB
JavaScript
/*\
|
|
title: $:/core/modules/widgets/radio.js
|
|
type: application/javascript
|
|
module-type: widget
|
|
|
|
Radio widget
|
|
|
|
Will set a field to the selected value:
|
|
|
|
```
|
|
<$radio field="myfield" value="check 1">one</$radio>
|
|
<$radio field="myfield" value="check 2">two</$radio>
|
|
<$radio field="myfield" value="check 3">three</$radio>
|
|
```
|
|
|
|
|Parameter |Description |h
|
|
|tiddler |Name of the tiddler in which the field should be set. Defaults to current tiddler |
|
|
|field |The name of the field to be set |
|
|
|value |The value to set |
|
|
|class |Optional class name(s) |
|
|
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
var Widget = require("$:/core/modules/widgets/widget.js").widget;
|
|
|
|
var RadioWidget = function(parseTreeNode,options) {
|
|
this.initialise(parseTreeNode,options);
|
|
};
|
|
|
|
/*
|
|
Inherit from the base widget class
|
|
*/
|
|
RadioWidget.prototype = new Widget();
|
|
|
|
/*
|
|
Render this widget into the DOM
|
|
*/
|
|
RadioWidget.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.labelDomNode = this.document.createElement("label");
|
|
this.labelDomNode.setAttribute("class",this.radioClass);
|
|
this.inputDomNode = this.document.createElement("input");
|
|
this.inputDomNode.setAttribute("type","radio");
|
|
if(this.getValue() == this.radioValue) {
|
|
this.inputDomNode.setAttribute("checked","true");
|
|
}
|
|
this.labelDomNode.appendChild(this.inputDomNode);
|
|
this.spanDomNode = this.document.createElement("span");
|
|
this.labelDomNode.appendChild(this.spanDomNode);
|
|
// Add a click event handler
|
|
$tw.utils.addEventListeners(this.inputDomNode,[
|
|
{name: "change", handlerObject: this, handlerMethod: "handleChangeEvent"}
|
|
]);
|
|
// Insert the label into the DOM and render any children
|
|
parent.insertBefore(this.labelDomNode,nextSibling);
|
|
this.renderChildren(this.spanDomNode,null);
|
|
this.domNodes.push(this.labelDomNode);
|
|
};
|
|
|
|
RadioWidget.prototype.getValue = function() {
|
|
var tiddler = this.wiki.getTiddler(this.radioTitle);
|
|
return tiddler && tiddler.getFieldString(this.radioField);
|
|
};
|
|
|
|
RadioWidget.prototype.setValue = function() {
|
|
if(this.radioField) {
|
|
var tiddler = this.wiki.getTiddler(this.radioTitle),
|
|
addition = {};
|
|
addition[this.radioField] = this.radioValue;
|
|
this.wiki.addTiddler(new $tw.Tiddler(tiddler,addition));
|
|
}
|
|
};
|
|
|
|
RadioWidget.prototype.handleChangeEvent = function(event) {
|
|
if(this.inputDomNode.checked) {
|
|
this.setValue();
|
|
}
|
|
};
|
|
|
|
/*
|
|
Compute the internal state of the widget
|
|
*/
|
|
RadioWidget.prototype.execute = function() {
|
|
// Get the parameters from the attributes
|
|
this.radioTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
|
|
this.radioField = this.getAttribute("field","text");
|
|
this.radioValue = this.getAttribute("value");
|
|
this.radioClass = this.getAttribute("class","");
|
|
if(this.radioClass !== "") {
|
|
this.radioClass += " ";
|
|
}
|
|
this.radioClass += "tw-radio";
|
|
// 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
|
|
*/
|
|
RadioWidget.prototype.refresh = function(changedTiddlers) {
|
|
var changedAttributes = this.computeAttributes();
|
|
if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.value || changedAttributes["class"]) {
|
|
this.refreshSelf();
|
|
return true;
|
|
} else {
|
|
var refreshed = false;
|
|
if(changedTiddlers[this.radioTitle]) {
|
|
this.inputDomNode.checked = this.getValue() === this.radioValue;
|
|
refreshed = true;
|
|
}
|
|
return this.refreshChildren(changedTiddlers) || refreshed;
|
|
}
|
|
};
|
|
|
|
exports.radio = RadioWidget;
|
|
|
|
})();
|