85 lines
2.7 KiB
JavaScript
85 lines
2.7 KiB
JavaScript
/**
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* @file ext-helloworld.js
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*
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* @license MIT
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*
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* @copyright 2010 Alexis Deveria
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*
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*/
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/**
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* This is a very basic SVG-Edit extension. It adds a "Hello World" button in
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* the left ("mode") panel. Clicking on the button, and then the canvas
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* will show the user the point on the canvas that was clicked on.
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*/
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const name = "helloworld";
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const loadExtensionTranslation = async function (svgEditor) {
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let translationModule;
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const lang = svgEditor.configObj.pref('lang');
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try {
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// eslint-disable-next-line no-unsanitized/method
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translationModule = await import(`./locale/${lang}.js`);
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} catch (_error) {
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console.warn(`Missing translation (${lang}) for ${name} - using 'en'`);
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translationModule = await import(`./locale/en.js`);
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}
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svgEditor.i18next.addResourceBundle(lang, name, translationModule.default);
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};
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export default {
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name,
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async init ({ _importLocale }) {
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const svgEditor = this;
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await loadExtensionTranslation(svgEditor);
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const { svgCanvas } = svgEditor;
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const { $id } = svgCanvas;
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return {
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name: svgEditor.i18next.t(`${name}:name`),
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callback() {
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// Add the button and its handler(s)
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const buttonTemplate = document.createElement("template");
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const title = `${name}:buttons.0.title`;
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// eslint-disable-next-line no-unsanitized/property
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buttonTemplate.innerHTML = `
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<se-button id="hello_world" title="${title}" src="hello_world.svg"></se-button>
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`;
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$id('tools_left').append(buttonTemplate.content.cloneNode(true));
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$id('hello_world').addEventListener("click", () => {
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svgCanvas.setMode('hello_world');
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});
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},
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// This is triggered when the main mouse button is pressed down
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// on the editor canvas (not the tool panels)
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mouseDown () {
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// Check the mode on mousedown
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if (svgCanvas.getMode() === 'hello_world') {
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// The returned object must include "started" with
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// a value of true in order for mouseUp to be triggered
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return { started: true };
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}
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return undefined;
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},
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// This is triggered from anywhere, but "started" must have been set
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// to true (see above). Note that "opts" is an object with event info
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mouseUp (opts) {
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// Check the mode on mouseup
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if (svgCanvas.getMode() === 'hello_world') {
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const zoom = svgCanvas.getZoom();
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// Get the actual coordinate by dividing by the zoom value
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const x = opts.mouse_x / zoom;
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const y = opts.mouse_y / zoom;
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// We do our own formatting
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const text = svgEditor.i18next.t(`${name}:text`, { x, y });
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// Show the text using the custom alert function
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alert(text);
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}
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}
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};
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}
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};
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