Jan2026 fixes (#1077)

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

tests/unit/paste-elem.test.js

@@ -0,0 +1,135 @@
+import SvgCanvas from '../../packages/svgcanvas/svgcanvas.js'
+import { NS } from '../../packages/svgcanvas/core/namespaces.js'
+
+describe('paste-elem', () => {
+  let svgCanvas
+
+  const createSvgCanvas = () => {
+    document.body.textContent = ''
+    const svgEditor = document.createElement('div')
+    svgEditor.id = 'svg_editor'
+    const svgcanvas = document.createElement('div')
+    svgcanvas.style.visibility = 'hidden'
+    svgcanvas.id = 'svgcanvas'
+    const workarea = document.createElement('div')
+    workarea.id = 'workarea'
+    workarea.append(svgcanvas)
+    const toolsLeft = document.createElement('div')
+    toolsLeft.id = 'tools_left'
+    svgEditor.append(workarea, toolsLeft)
+    document.body.append(svgEditor)
+
+    svgCanvas = new SvgCanvas(document.getElementById('svgcanvas'), {
+      canvas_expansion: 3,
+      dimensions: [640, 480],
+      initFill: {
+        color: 'FF0000',
+        opacity: 1
+      },
+      initStroke: {
+        width: 5,
+        color: '000000',
+        opacity: 1
+      },
+      initOpacity: 1,
+      imgPath: '../editor/images',
+      langPath: 'locale/',
+      extPath: 'extensions/',
+      extensions: [],
+      initTool: 'select',
+      wireframe: false
+    })
+  }
+
+  beforeEach(() => {
+    createSvgCanvas()
+    sessionStorage.clear()
+  })
+
+  afterEach(() => {
+    document.body.textContent = ''
+    sessionStorage.clear()
+  })
+
+  it('pastes copied elements and assigns new IDs', () => {
+    const rect = svgCanvas.addSVGElementsFromJson({
+      element: 'rect',
+      attr: {
+        id: 'rect-original',
+        x: 10,
+        y: 20,
+        width: 30,
+        height: 40
+      }
+    })
+
+    svgCanvas.selectOnly([rect], true)
+    svgCanvas.copySelectedElements()
+
+    const undoSize = svgCanvas.undoMgr.getUndoStackSize()
+    svgCanvas.pasteElements('in_place')
+
+    expect(svgCanvas.undoMgr.getUndoStackSize()).toBe(undoSize + 1)
+    const pasted = svgCanvas.getSelectedElements()[0]
+    expect(pasted).toBeTruthy()
+    expect(pasted.tagName).toBe('rect')
+    expect(pasted.id).not.toBe('rect-original')
+
+    expect(svgCanvas.getSvgContent().querySelector('#rect-original')).toBeTruthy()
+    expect(svgCanvas.getSvgContent().querySelector('#' + pasted.id)).toBe(pasted)
+  })
+
+  it('remaps internal url(#id) references when pasting', () => {
+    const group = svgCanvas.addSVGElementsFromJson({
+      element: 'g',
+      attr: { id: 'group-original' }
+    })
+
+    const defs = document.createElementNS(NS.SVG, 'defs')
+    const gradient = document.createElementNS(NS.SVG, 'linearGradient')
+    gradient.id = 'grad-original'
+    const stop = document.createElementNS(NS.SVG, 'stop')
+    stop.setAttribute('offset', '0%')
+    stop.setAttribute('stop-color', '#000')
+    gradient.append(stop)
+    defs.append(gradient)
+
+    const rect = document.createElementNS(NS.SVG, 'rect')
+    rect.id = 'rect-with-fill'
+    rect.setAttribute('x', '0')
+    rect.setAttribute('y', '0')
+    rect.setAttribute('width', '10')
+    rect.setAttribute('height', '10')
+    rect.setAttribute('fill', 'url(#grad-original)')
+    group.append(defs, rect)
+
+    svgCanvas.selectOnly([group], true)
+    svgCanvas.copySelectedElements()
+    svgCanvas.pasteElements('in_place')
+
+    const pastedGroup = svgCanvas.getSelectedElements()[0]
+    const pastedGradient = pastedGroup.querySelector('linearGradient')
+    const pastedRect = pastedGroup.querySelector('rect')
+
+    expect(pastedGradient).toBeTruthy()
+    expect(pastedRect).toBeTruthy()
+    expect(pastedGradient.id).not.toBe('grad-original')
+    expect(pastedRect.getAttribute('fill')).toBe('url(#' + pastedGradient.id + ')')
+  })
+
+  it('does not throw on invalid clipboard JSON', () => {
+    sessionStorage.setItem(svgCanvas.getClipboardID(), 'not-json')
+    const undoSize = svgCanvas.undoMgr.getUndoStackSize()
+
+    expect(() => svgCanvas.pasteElements('in_place')).not.toThrow()
+    expect(svgCanvas.undoMgr.getUndoStackSize()).toBe(undoSize)
+  })
+
+  it('does not throw on empty clipboard', () => {
+    sessionStorage.setItem(svgCanvas.getClipboardID(), '[]')
+    const undoSize = svgCanvas.undoMgr.getUndoStackSize()
+
+    expect(() => svgCanvas.pasteElements('in_place')).not.toThrow()
+    expect(svgCanvas.undoMgr.getUndoStackSize()).toBe(undoSize)
+  })
+})