mj-context-menu/js/item_combo.js

A generic context menu

import { AbstractVariableItem } from './abstract_variable_item.js';
import * as MenuUtil from './menu_util.js';
import { HtmlClasses } from './html_classes.js';
import { KEY } from './key_navigatable.js';
export class Combo extends AbstractVariableItem {
    static fromJson(_factory, { content: content, variable: variable, id: id }, menu) {
        return new this(menu, content, variable, id);
    }
    constructor(menu, content, variable, id) {
        super(menu, 'combobox', content, id);
        this.role = 'combobox';
        this.inputEvent = false;
        this.variable = menu.pool.lookup(variable);
        this.register();
    }
    executeAction() {
        this.variable.setValue(this.input.value, MenuUtil.getActiveElement(this));
    }
    space(event) {
        super.space(event);
        MenuUtil.close(this);
    }
    focus() {
        super.focus();
        this.input.focus();
    }
    unfocus() {
        super.unfocus();
        this.updateSpan();
    }
    generateHtml() {
        super.generateHtml();
        const html = this.html;
        html.classList.add(HtmlClasses['MENUCOMBOBOX']);
    }
    generateSpan() {
        this.span = document.createElement('span');
        this.span.classList.add(HtmlClasses['MENUINPUTBOX']);
        this.input = document.createElement('input');
        this.input.addEventListener('keydown', this.inputKey.bind(this));
        this.input.setAttribute('size', '10em');
        this.input.setAttribute('type', 'text');
        this.input.setAttribute('tabindex', '-1');
        this.span.appendChild(this.input);
    }
    inputKey(_event) {
        this.bubbleKey();
        this.inputEvent = true;
    }
    keydown(event) {
        if (this.inputEvent &&
            event.keyCode !== KEY.ESCAPE &&
            event.keyCode !== KEY.RETURN) {
            this.inputEvent = false;
            event.stopPropagation();
            return;
        }
        super.keydown(event);
        event.stopPropagation();
    }
    updateAria() { }
    updateSpan() {
        let initValue;
        try {
            initValue = this.variable.getValue(MenuUtil.getActiveElement(this));
        }
        catch (e) {
            initValue = '';
        }
        this.input.value = initValue;
    }
    toJson() {
        return { type: '' };
    }
}
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