/*
* Copyright (C) 1998-2023 by Northwoods Software Corporation. All Rights Reserved.
*/
/*
* This is an extension and not part of the main GoJS library.
* Note that the API for this class may change with any version, even point releases.
* If you intend to use an extension in production, you should copy the code to your own source directory.
* Extensions can be found in the GoJS kit under the extensions or extensionsJSM folders.
* See the Extensions intro page (https://gojs.net/latest/intro/extensions.html) for more information.
*/
import * as go from '../release/go.js';
// HTML + JavaScript text editor menu, using HTML radio inputs and HTMLInfo.
// This file exposes one instance of HTMLInfo, window.TextEditorRadioButtons
// Typical usage is:
//
// If you do use this code, copy it into your project and modify it there.
// see /samples/customTextEditingTool.html
// see also textEditorSelectBox.js for another custom editor
// see also textEditor.html for a re-implementation of the default text editor
((window: any) => {
// Use the following HTML:
const customText = document.createElement('div');
customText.id = 'customTextEditor';
customText.style.cssText = 'border: 1px solid black; background-color: white;';
customText.innerHTML =
' ' +
' ' +
' ' +
' ';
const customEditor = new go.HTMLInfo();
customEditor.show = (textBlock, diagram, tool) => {
if (!(textBlock instanceof go.TextBlock)) return;
const startingValue = textBlock.text;
// Populate the select box:
customText.innerHTML = '';
let list = textBlock.choices;
// Perhaps give some default choices if textBlock.choices is null
if (list === null) list = ['Default A', 'Default B', 'Default C'];
let l = list.length;
for (let i = 0; i < l; i++) {
const value = list[i];
const label = document.createElement('label');
const input = document.createElement('input');
label.htmlFor = value;
label.textContent = value;
input.type = 'radio';
input.name = 'group1';
input.id = value;
input.value = value;
customText.appendChild(label);
customText.appendChild(input);
if (i !== l - 1) customText.appendChild(document.createElement('br'));
}
// consider also adding the current value, if it is not in the choices list
const children = customText.children;
l = children.length;
for (let i = 0; i < l; i++) {
const child = children[i];
if (!(child instanceof HTMLInputElement)) continue;
// Make sure the radio button that equals the text is checked
if (child.value === startingValue) {
child.checked = true;
}
// Finish immediately when a radio button is pressed
customText.addEventListener('change', (e) => {
(tool as any).acceptText(go.TextEditingTool.Tab);
}, false);
}
// Do a few different things when a user presses a key
customText.addEventListener('keydown', (e) => {
if (e.isComposing) return;
const key = e.key;
if (key === "Enter") { // Accept on Enter
(tool as any).acceptText(go.TextEditingTool.Enter);
return;
} else if (key === "Tab") { // Accept on Tab
(tool as any).acceptText(go.TextEditingTool.Tab);
e.preventDefault();
return false;
} else if (key === "Escape") { // Cancel on Esc
tool.doCancel();
if (tool.diagram) tool.diagram.focus();
}
}, false);
const loc = textBlock.getDocumentPoint(go.Spot.TopLeft);
const pos = diagram.transformDocToView(loc);
customText.style.left = pos.x + 'px';
customText.style.top = pos.y + 'px';
customText.style.position = 'absolute';
customText.style.zIndex = (100).toString(); // place it in front of the Diagram
if (diagram.div !== null) diagram.div.appendChild(customText);
};
customEditor.hide = (diagram, tool) => {
if (diagram.div !== null) diagram.div.removeChild(customText);
};
// customText is a div and doesn't have a "value" field
// So we will make value into a function that will return
// the "value" of the checked radio button
customEditor.valueFunction = () => {
const children = customText.children;
const l = children.length;
for (let i = 0; i < l; i++) {
const child = children[i];
if (!(child instanceof HTMLInputElement)) continue;
if (child.checked) {
return child.value;
}
}
return '';
};
window.TextEditorRadioButtons = customEditor;
})(window);