Jan2026 fixes (#1077)

* fix release script
* fix svgcanvas edge cases
* Update path-actions.js
* add modern js
* update deps
* Update CHANGES.md

tests/unit/copy-elem.test.js

@@ -0,0 +1,89 @@
+import { describe, expect, it } from 'vitest'
+import { copyElem } from '../../packages/svgcanvas/core/copy-elem.js'
+import dataStorage from '../../packages/svgcanvas/core/dataStorage.js'
+
+const NS_SVG = 'http://www.w3.org/2000/svg'
+
+const buildIdGenerator = () => {
+  let next = 0
+  return () => `svg_${++next}`
+}
+
+describe('copyElem', () => {
+  it('clones elements and assigns new ids', () => {
+    const getNextId = buildIdGenerator()
+    const group = document.createElementNS(NS_SVG, 'g')
+    group.id = 'old_group'
+    group.setAttribute('fill', 'red')
+    const rect = document.createElementNS(NS_SVG, 'rect')
+    rect.id = 'old_rect'
+    group.append(rect)
+
+    const cloned = copyElem(group, getNextId)
+
+    expect(cloned.id).toBe('svg_1')
+    expect(cloned.getAttribute('fill')).toBe('red')
+    expect(cloned.querySelector('rect')?.id).toBe('svg_2')
+  })
+
+  it('preserves mixed content order', () => {
+    const getNextId = buildIdGenerator()
+    const text = document.createElementNS(NS_SVG, 'text')
+    text.append(document.createTextNode('hello '))
+    const tspan = document.createElementNS(NS_SVG, 'tspan')
+    tspan.append(document.createTextNode('world'))
+    text.append(tspan)
+    text.append(document.createTextNode('!'))
+
+    const cloned = copyElem(text, getNextId)
+
+    expect(cloned.childNodes[0].nodeType).toBe(Node.TEXT_NODE)
+    expect(cloned.childNodes[0].nodeValue).toBe('hello ')
+    expect(cloned.childNodes[1].nodeName.toLowerCase()).toBe('tspan')
+    expect(cloned.childNodes[2].nodeType).toBe(Node.TEXT_NODE)
+    expect(cloned.childNodes[2].nodeValue).toBe('!')
+    expect(cloned.textContent).toBe('hello world!')
+  })
+
+  it('copies gsvg dataStorage to the cloned element', () => {
+    const getNextId = buildIdGenerator()
+    const group = document.createElementNS(NS_SVG, 'g')
+    const innerSvg = document.createElementNS(NS_SVG, 'svg')
+    innerSvg.append(document.createElementNS(NS_SVG, 'rect'))
+    group.append(innerSvg)
+    dataStorage.put(group, 'gsvg', innerSvg)
+
+    const cloned = copyElem(group, getNextId)
+    const clonedSvg = cloned.firstElementChild
+
+    expect(dataStorage.has(cloned, 'gsvg')).toBe(true)
+    expect(dataStorage.get(cloned, 'gsvg')).toBe(clonedSvg)
+    expect(dataStorage.get(cloned, 'gsvg')).not.toBe(innerSvg)
+  })
+
+  it('copies symbol/ref dataStorage to the cloned element', () => {
+    const getNextId = buildIdGenerator()
+    const symbol = document.createElementNS(NS_SVG, 'symbol')
+    symbol.id = 'sym1'
+    const use = document.createElementNS(NS_SVG, 'use')
+    use.setAttribute('href', '#sym1')
+    dataStorage.put(use, 'ref', symbol)
+    dataStorage.put(use, 'symbol', symbol)
+
+    const cloned = copyElem(use, getNextId)
+
+    expect(dataStorage.get(cloned, 'ref')).toBe(symbol)
+    expect(dataStorage.get(cloned, 'symbol')).toBe(symbol)
+  })
+
+  it('prevents default click behaviour on cloned images', () => {
+    const getNextId = buildIdGenerator()
+    const image = document.createElementNS(NS_SVG, 'image')
+
+    const cloned = copyElem(image, getNextId)
+    const evt = new MouseEvent('click', { bubbles: true, cancelable: true })
+    cloned.dispatchEvent(evt)
+
+    expect(evt.defaultPrevented).toBe(true)
+  })
+})