119 lines
4.2 KiB
TypeScript
119 lines
4.2 KiB
TypeScript
"use strict";
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/*
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* Copyright (C) 1998-2017 by Northwoods Software Corporation. All Rights Reserved.
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*/
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import * as go from "../release/go"
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// HTML + JavaScript text editor menu, using HTML radio inputs and HTMLInfo.
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// This file exposes one instance of HTMLInfo, window.TextEditorRadioButtons
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// see /samples/customTextEditingTool.html
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// see also textEditorSelectBox.js for another custom editor
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// see also textEditor.html for a re-implementation of the default text editor
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((window: any) => {
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// Use the following HTML:
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var customText = document.createElement("div");
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customText.id = "customTextEditor";
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customText.style.cssText = "border: 1px solid black; background-color: white;";
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customText.innerHTML =
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' <label for="One">One</label> <input type="radio" name="group1" id="One" value="One"> <br/>' +
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' <label for="Two">Two</label> <input type="radio" name="group1" id="Two" value="Two"> <br/>' +
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' <label for="Three">Three</label> <input type="radio" name="group1" id="Three" value="Three"> <br/>' +
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' <label for="Four">Four</label> <input type="radio" name="group1" id="Four" value="Four">';
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var customEditor = new go.HTMLInfo();
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var myDiagram: go.Diagram;
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customEditor.show = (textBlock, diagram, tool) => {
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if (!(textBlock instanceof go.TextBlock)) return;
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var startingValue = textBlock.text;
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// Populate the select box:
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customText.innerHTML = "";
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var list = textBlock.choices;
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// Perhaps give some default choices if textBlock.choices is null
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if (list === null) list = ["Default A", "Default B", "Default C"];
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var l = list.length;
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for (var i = 0; i < l; i++) {
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var value = list[i];
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var label = document.createElement("label");
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var input = document.createElement("input");
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label.htmlFor = value;
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label.textContent = value;
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input.type = "radio";
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input.name = "group1";
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input.id = value;
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input.value = value;
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customText.appendChild(label);
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customText.appendChild(input);
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if (i !== l-1) customText.appendChild(document.createElement("br"));
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}
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// consider also adding the current value, if it is not in the choices list
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var children = customText.children
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var l = children.length;
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for (var i = 0; i < l; i++) {
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var child = children[i];
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if (!(child instanceof HTMLInputElement)) continue;
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// Make sure the radio button that equals the text is checked
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if (child.value == startingValue) {
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child.checked = true;
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}
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// Finish immediately when a radio button is pressed
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customText.addEventListener("change", (e) => {
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(<any>tool).acceptText(go.TextEditingTool.Tab);
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}, false);
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}
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// Do a few different things when a user presses a key
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customText.addEventListener("keydown", (e) => {
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var keynum = e.which;
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if (keynum == 13) { // Accept on Enter
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(<any>tool).acceptText(go.TextEditingTool.Enter);
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return;
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} else if (keynum == 9) { // Accept on Tab
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(<any>tool).acceptText(go.TextEditingTool.Tab);
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e.preventDefault();
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return false;
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} else if (keynum === 27) { // Cancel on Esc
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tool.doCancel();
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if (tool.diagram) tool.diagram.focus();
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}
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}, false);
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var loc = textBlock.getDocumentPoint(go.Spot.TopLeft);
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var pos = myDiagram.transformDocToView(loc);
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customText.style.left = pos.x + "px";
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customText.style.top = pos.y + "px";
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customText.style.position = 'absolute';
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customText.style.zIndex = (100).toString(); // place it in front of the Diagram
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diagram.div.appendChild(customText);
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}
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customEditor.hide = (diagram, tool) => {
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diagram.div.removeChild(customText);
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}
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// customText is a div and doesn't have a "value" field
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// So we will make value into a function that will return
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// the "value" of the checked radio button
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customEditor.valueFunction = () => {
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var children = customText.children
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var l = children.length;
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for (var i = 0; i < l; i++) {
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var child = children[i];
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if (!(child instanceof HTMLInputElement)) continue;
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if (child.checked) {
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return child.value;
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}
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}
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return "";
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}
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window.TextEditorRadioButtons = customEditor;
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})(window); |