shadowcz007-comfyui-mixlab-nodes/web/javascript/utils_mixlab.js

import { app } from '../../../scripts/app.js'
import { api } from '../../../scripts/api.js'
import { ComfyWidgets } from '../../../scripts/widgets.js'
import { $el } from '../../../scripts/ui.js'


const getLocalData = key => {
  let data = {}
  try {
    data = JSON.parse(localStorage.getItem(key)) || {}
  } catch (error) {
    return {}
  }
  return data
}
function get_position_style (ctx, widget_width, y, node_height) {
  const MARGIN = 4 // the margin around the html element

  /* Create a transform that deals with all the scrolling and zooming */
  const elRect = ctx.canvas.getBoundingClientRect()
  const transform = new DOMMatrix()
    .scaleSelf(
      elRect.width / ctx.canvas.width,
      elRect.height / ctx.canvas.height
    )
    .multiplySelf(ctx.getTransform())
    .translateSelf(MARGIN, MARGIN + y)

  return {
    transformOrigin: '0 0',
    transform: transform,
    left: `0`,
    top: `0`,
    cursor: 'pointer',
    position: 'absolute',
    maxWidth: `${widget_width - MARGIN * 2}px`,
    // maxHeight: `${node_height - MARGIN * 2}px`, // we're assuming we have the whole height of the node
    width: `${widget_width - MARGIN * 2}px`,
    // height: `${node_height * 0.3 - MARGIN * 2}px`,
    // background: '#EEEEEE',
    display: 'flex',
    flexDirection: 'column',
    // alignItems: 'center',
    justifyContent: 'space-around'
  }
}

app.registerExtension({
    name: 'Mixlab.utils.Color',
    async getCustomWidgets (app) {
      return {
        TCOLOR (node, inputName, inputData, app) {
          // console.log('##node', node)
          const widget = {
            type: inputData[0], // the type, CHEESE
            name: inputName, // the name, slice
            size: [128, 32], // a default size
            draw (ctx, node, width, y) {},
            computeSize (...args) {
              return [128, 32] // a method to compute the current size of the widget
            },
            async serializeValue (nodeId, widgetIndex) {
              let data = getLocalData('_mixlab_utils_color')
              return data[node.id] || '#000000'
            }
          }
          //  widget.something = something;          // maybe adds stuff to it
          node.addCustomWidget(widget) // adds it to the node
          return widget // and returns it.
        }
      }
    },
  
    async beforeRegisterNodeDef (nodeType, nodeData, app) {
      if (nodeType.comfyClass == 'Color') {
        const orig_nodeCreated = nodeType.prototype.onNodeCreated
        nodeType.prototype.onNodeCreated = function () {
          orig_nodeCreated?.apply(this, arguments)
  
          console.log('Color nodeData', this.widgets)
   
          const widget = {
            type: 'div',
            name: 'input_color',
            draw (ctx, node, widget_width, y, widget_height) {
              Object.assign(
                this.div.style,
                get_position_style(
                  ctx,
                  widget_width,
                  44,
                  node.size[1]
                )
              )
            }
          }
  
          widget.div = $el('div', {})
  
          document.body.appendChild(widget.div)
  
          const inputDiv = (key, placeholder, value) => {
            let div = document.createElement('div')
            const ip = document.createElement('input')
            ip.type = 'color'
            ip.className = `${'comfy-multiline-input'} ${placeholder}`
            div.style = `display: flex;
            align-items: center; 
            margin: 6px 8px;
            margin-top: 0;`
            ip.placeholder = placeholder
            ip.value = value
  
            ip.style = `outline: none;
            border: none;
            padding: 4px;
            width: 100%;cursor: pointer;
            height: 32px;`
            const label = document.createElement('label')
            label.style = 'font-size: 10px;min-width:32px'
            label.innerText = placeholder
            div.appendChild(label)
            div.appendChild(ip)
  
            ip.addEventListener('change', () => {
              let data = getLocalData(key)
              data[this.id] = ip.value.trim()
              localStorage.setItem(key, JSON.stringify(data))
              // console.log(this.id, ip.value.trim())
            })
            return div
          }
  
          let inputColor = inputDiv('_mixlab_utils_color', 'Color', '#000000')
  
          widget.div.appendChild(inputColor)
  
          this.addCustomWidget(widget)
  
          const onRemoved = this.onRemoved
          this.onRemoved = () => {
            inputColor.remove()
            widget.div.remove()
            return onRemoved?.()
          }
  
          this.serialize_widgets = true //需要保存参数
        }
      }
    },
    async loadedGraphNode (node, app) {
      // Fires every time a node is constructed
      // You can modify widgets/add handlers/etc here
  
      if (node.type === 'Color') {
        let widget = node.widgets.filter(w => w.div)[0]
  
        let data = getLocalData('_mixlab_utils_color')
  
        let id = node.id
  
        widget.div.querySelector('.Color').value = data[id] || '#000000'
      }
    }
  })