130 lines
4.9 KiB
JavaScript
130 lines
4.9 KiB
JavaScript
/**
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* @file ext-eyedropper.js
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*
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* @license MIT
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*
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* @copyright 2010 Jeff Schiller
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* @copyright 2021 OptimistikSAS
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*
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*/
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const name = 'eyedropper'
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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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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 () {
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const svgEditor = this
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const { svgCanvas } = svgEditor
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await loadExtensionTranslation(svgEditor)
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const { ChangeElementCommand } = svgCanvas.history
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// svgdoc = S.svgroot.parentNode.ownerDocument,
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const addToHistory = (cmd) => { svgCanvas.undoMgr.addCommandToHistory(cmd) }
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const currentStyle = {
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fillPaint: 'red',
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fillOpacity: 1.0,
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strokePaint: 'black',
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strokeOpacity: 1.0,
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strokeWidth: 5,
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strokeDashArray: null,
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opacity: 1.0,
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strokeLinecap: 'butt',
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strokeLinejoin: 'miter'
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}
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const { $id } = svgCanvas
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/**
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*
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* @param {module:svgcanvas.SvgCanvas#event:ext_selectedChanged|module:svgcanvas.SvgCanvas#event:ext_elementChanged} opts
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* @returns {void}
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*/
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const getStyle = (opts) => {
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// if we are in eyedropper mode, we don't want to disable the eye-dropper tool
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const mode = svgCanvas.getMode()
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if (mode === 'eyedropper') { return }
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const tool = $id('tool_eyedropper')
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// enable-eye-dropper if one element is selected
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let elem = null
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if (!opts.multiselected && opts.elems[0] &&
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!['svg', 'g', 'use'].includes(opts.elems[0].nodeName)
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) {
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elem = opts.elems[0]
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tool.classList.remove('disabled')
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// grab the current style
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currentStyle.fillPaint = elem.getAttribute('fill') || 'black'
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currentStyle.fillOpacity = elem.getAttribute('fill-opacity') || 1.0
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currentStyle.strokePaint = elem.getAttribute('stroke')
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currentStyle.strokeOpacity = elem.getAttribute('stroke-opacity') || 1.0
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currentStyle.strokeWidth = elem.getAttribute('stroke-width')
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currentStyle.strokeDashArray = elem.getAttribute('stroke-dasharray')
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currentStyle.strokeLinecap = elem.getAttribute('stroke-linecap')
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currentStyle.strokeLinejoin = elem.getAttribute('stroke-linejoin')
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currentStyle.opacity = elem.getAttribute('opacity') || 1.0
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// disable eye-dropper tool
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} else {
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tool.classList.add('disabled')
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}
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}
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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 title = `${name}:buttons.0.title`
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const key = `${name}:buttons.0.key`
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const buttonTemplate = `
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<se-button id="tool_eyedropper" title="${title}" src="eye_dropper.svg" shortcut=${key}></se-button>
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`
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svgCanvas.insertChildAtIndex($id('tools_left'), buttonTemplate, 12)
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$id('tool_eyedropper').addEventListener('click', () => {
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if (this.leftPanel.updateLeftPanel('tool_eyedropper')) {
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svgCanvas.setMode('eyedropper')
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}
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})
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},
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// if we have selected an element, grab its paint and enable the eye dropper button
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selectedChanged: getStyle,
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elementChanged: getStyle,
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mouseDown (opts) {
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const mode = svgCanvas.getMode()
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if (mode === 'eyedropper') {
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const e = opts.event
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const { target } = e
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if (!['svg', 'g', 'use'].includes(target.nodeName)) {
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const changes = {}
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const change = function (elem, attrname, newvalue) {
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changes[attrname] = elem.getAttribute(attrname)
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elem.setAttribute(attrname, newvalue)
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}
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if (currentStyle.fillPaint) { change(target, 'fill', currentStyle.fillPaint) }
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if (currentStyle.fillOpacity) { change(target, 'fill-opacity', currentStyle.fillOpacity) }
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if (currentStyle.strokePaint) { change(target, 'stroke', currentStyle.strokePaint) }
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if (currentStyle.strokeOpacity) { change(target, 'stroke-opacity', currentStyle.strokeOpacity) }
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if (currentStyle.strokeWidth) { change(target, 'stroke-width', currentStyle.strokeWidth) }
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if (currentStyle.strokeDashArray) { change(target, 'stroke-dasharray', currentStyle.strokeDashArray) }
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if (currentStyle.opacity) { change(target, 'opacity', currentStyle.opacity) }
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if (currentStyle.strokeLinecap) { change(target, 'stroke-linecap', currentStyle.strokeLinecap) }
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if (currentStyle.strokeLinejoin) { change(target, 'stroke-linejoin', currentStyle.strokeLinejoin) }
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addToHistory(new ChangeElementCommand(target, changes))
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}
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}
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}
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}
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}
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}
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