88 lines
2.6 KiB
JavaScript
88 lines
2.6 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 loadExtensionTranslation = async function (lang) {
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let translationModule;
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try {
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// eslint-disable-next-line no-unsanitized/method
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translationModule = await import(`./locale/${encodeURIComponent(lang)}.js`);
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} catch (_error) {
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// eslint-disable-next-line no-console
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console.error(`Missing translation (${lang}) - using 'en'`);
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translationModule = await import(`./locale/en.js`);
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}
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return translationModule.default;
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};
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export default {
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name: 'helloworld',
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async init ({_importLocale}) {
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const svgEditor = this;
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const strings = await loadExtensionTranslation(svgEditor.configObj.pref('lang'));
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const {svgCanvas} = svgEditor;
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return {
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name: strings.name,
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events: [{
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// Must match the icon ID in helloworld-icon.xml
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id: 'hello_world',
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// Tooltip text
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title: strings.buttons[0].title,
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click () {
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// The action taken when the button is clicked on.
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// For "mode" buttons, any other button will
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// automatically be de-pressed.
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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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let {text} = strings;
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[
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['x', x],
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['y', y]
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].forEach(([prop, val]) => {
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text = text.replace('{' + prop + '}', val);
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});
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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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