refactor(node-resizer): add auto-scale prop & scale resize controls with zoom level (#1872)

* refactor(node-resizer): add auto-scale prop & scale resize controls with zoom

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>

* chore(changeset): add

---------

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>

Author: bcakmakoglu

.changeset/three-items-grow.md

@@ -0,0 +1,5 @@
+---
+"@vue-flow/node-resizer": minor
+---
+
+Add auto-scale prop to node resizer (default `true`) that forces node resizer controls to scale with the viewport zoom level.

packages/node-resizer/src/NodeResizer.vue

@@ -8,6 +8,7 @@ import { ResizeControlVariant } from './types'
 
 const props = withDefaults(defineProps<NodeResizerProps>(), {
   isVisible: true,
+  autoScale: true,
 })
 
 const emits = defineEmits<NodeResizerEmits>()
@@ -92,13 +93,14 @@ export default {
       :node-id="nodeId"
       :position="c"
       :variant="ResizeControlVariant.Line"
-      :keep-aspect-ratio="keepAspectRatio"
       :color="color"
       :min-width="minWidth"
       :min-height="minHeight"
       :max-width="maxWidth"
       :max-height="maxHeight"
       :should-resize="shouldResize"
+      :keep-aspect-ratio="keepAspectRatio"
+      :auto-scale="autoScale"
       @resize-start="emits('resizeStart', $event)"
       @resize="emits('resize', $event)"
       @resize-end="emits('resizeEnd', $event)"
@@ -118,6 +120,7 @@ export default {
       :max-height="maxHeight"
       :should-resize="shouldResize"
       :keep-aspect-ratio="keepAspectRatio"
+      :auto-scale="autoScale"
       @resize-start="emits('resizeStart', $event)"
       @resize="emits('resize', $event)"
       @resize-end="emits('resizeEnd', $event)"

packages/node-resizer/src/ResizeControl.vue

@@ -3,8 +3,9 @@ import type { NodeChange, NodeDimensionChange, NodePositionChange } from '@vue-f
 import { clamp, useGetPointerPosition, useVueFlow } from '@vue-flow/core'
 import { select } from 'd3-selection'
 import { drag } from 'd3-drag'
-import { ref, toRef, watchEffect } from 'vue'
-import type { NodeResizerEmits, ResizeControlProps, ResizeControlVariant, ResizeDragEvent } from './types'
+import { computed, ref, toRef, watchEffect } from 'vue'
+import type { NodeResizerEmits, ResizeControlProps, ResizeDragEvent } from './types'
+import { ResizeControlVariant } from './types'
 import { DefaultPositions, StylingProperty, getDirection } from './utils'
 
 const props = withDefaults(defineProps<ResizeControlProps>(), {
@@ -14,6 +15,7 @@ const props = withDefaults(defineProps<ResizeControlProps>(), {
   maxWidth: Number.MAX_VALUE,
   maxHeight: Number.MAX_VALUE,
   keepAspectRatio: false,
+  autoScale: true,
 })
 
 const emits = defineEmits<NodeResizerEmits>()
@@ -27,7 +29,7 @@ const initStartValues = {
   aspectRatio: 1,
 }
 
-const { findNode, emits: triggerEmits } = useVueFlow()
+const { findNode, emits: triggerEmits, viewport, noDragClassName } = useVueFlow()
 
 const getPointerPosition = useGetPointerPosition()
 
@@ -39,7 +41,7 @@ let prevValues: typeof initPrevValues = initPrevValues
 
 const controlPosition = toRef(() => props.position ?? DefaultPositions[props.variant])
 
-const positionClassNames = toRef(() => controlPosition.value.split('-'))
+const positionClassNames = computed(() => controlPosition.value.split('-'))
 
 const controlStyle = toRef(() => (props.color ? { [StylingProperty[props.variant]]: props.color } : {}))
 
@@ -237,9 +239,12 @@ export default {
 <template>
   <div
     ref="resizeControlRef"
-    class="vue-flow__resize-control nodrag"
-    :class="[...positionClassNames, variant]"
-    :style="controlStyle"
+    class="vue-flow__resize-control"
+    :class="[...positionClassNames, variant, noDragClassName]"
+    :style="{
+      ...controlStyle,
+      scale: variant === ResizeControlVariant.Handle ? `${Math.max(1 / viewport.zoom, 1)}` : undefined,
+    }"
   >
     <slot />
   </div>

packages/node-resizer/src/style.css

@@ -24,8 +24,8 @@
 
 /* handle styles */
 .vue-flow__resize-control.handle {
-  width: 4px;
-  height: 4px;
+  width: 5px;
+  height: 5px;
   border: 1px solid #fff;
   border-radius: 1px;
   background-color: #3367d9;

packages/node-resizer/src/types.ts

@@ -45,6 +45,11 @@ export interface NodeResizerProps {
   maxHeight?: number
   shouldResize?: ShouldResize
   keepAspectRatio?: boolean | number
+  /**
+   * Scale the controls with the zoom level.
+   * @default true
+   */
+  autoScale?: boolean
 }
 
 export interface NodeResizerEmits {
@@ -62,8 +67,8 @@ export enum ResizeControlVariant {
   Handle = 'handle',
 }
 
-export interface ResizeControlProps {
-  nodeId?: string | null
+export interface ResizeControlProps extends NodeResizerProps {
+  nodeId?: string
   color?: string
   minWidth?: number
   minHeight?: number
@@ -73,6 +78,11 @@ export interface ResizeControlProps {
   variant?: ResizeControlVariant
   shouldResize?: ShouldResize
   keepAspectRatio?: boolean | number
+  /**
+   * Scale the controls with the zoom level.
+   * @default true
+   */
+  autoScale?: boolean
 }
 
 export interface ResizeControlLineProps extends ResizeControlProps {