81 lines
2.2 KiB
JavaScript
81 lines
2.2 KiB
JavaScript
"use strict";
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// Display text component
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Toolkit.Label = class Label extends Toolkit.Component {
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// Object constructor
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constructor(application, options) {
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super(application, options&&options.label ? "label" : "div", options);
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options = options || {};
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// Configure instance fields
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this.focusable = "focusable" in options ? !!options.focusable : false;
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this.localized = "localized" in options ? !!options.localized : false;
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this.text = options.text || "";
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// Configure element
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this.element.style.cursor = "default";
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this.element.style.userSelect = "none";
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// Configure properties
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this.setFocusable(this.focusable);
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this.setText (this.text);
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if (this.localized)
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this.application.addComponent(this);
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}
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///////////////////////////// Public Methods //////////////////////////////
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// Request focus on the appropriate element
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focus() {
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if (this.focusable)
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this.element.focus();
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}
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// Retrieve the label's display text
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getText() {
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return this.text;
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}
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// Determine whether the component is focusable
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isFocusable() {
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return this.focusable;
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}
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// Specify the label's display text
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setText(text) {
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this.text = text || "";
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this.localize();
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}
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// Specify whether the component is focusable
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setFocusable(focusable) {
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this.focusable = focusable = !!focusable;
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if (focusable) {
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this.element.setAttribute("tabindex", "0");
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this.localized && this.application &&
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this.application.addComponent(this);
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} else {
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this.element.removeAttribute("aria-label");
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this.element.removeAttribute("tabindex");
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this.localized && this.application &&
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this.application.removeComponent(this);
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}
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}
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///////////////////////////// Package Methods /////////////////////////////
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// Update display text with localized strings
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localize() {
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let text = this.text;
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if (this.localized && this.application)
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text = this.application.translate(text, this);
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this.element.innerText = text;
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}
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};
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