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import { app } from '../../../scripts/app.js'
import { api } from '../../../scripts/api.js'
function offsetDOMWidget(
widget,
ctx,
node,
widgetWidth,
widgetY,
height
) {
const margin = 10
const elRect = ctx.canvas.getBoundingClientRect()
const transform = new DOMMatrix()
.scaleSelf(
elRect.width / ctx.canvas.width,
elRect.height / ctx.canvas.height
)
.multiplySelf(ctx.getTransform())
.translateSelf(0, widgetY + margin)
const scale = new DOMMatrix().scaleSelf(transform.a, transform.d)
Object.assign(widget.inputEl.style, {
transformOrigin: '0 0',
transform: scale,
left: `${transform.e}px`,
top: `${transform.d + transform.f}px`,
width: `${widgetWidth}px`,
height: `${(height || widget.parent?.inputHeight || 32) - margin}px`,
position: 'absolute',
background: !node.color ? '' : node.color,
color: !node.color ? '' : 'white',
zIndex: 5, //app.graph._nodes.indexOf(node),
})
}
export const hasWidgets = (node) => {
if (!node.widgets || !node.widgets?.[Symbol.iterator]) {
return false
}
return true
}
export const cleanupNode = (node) => {
if (!hasWidgets(node)) {
return
}
for (const w of node.widgets) {
if (w.canvas) {
w.canvas.remove()
}
if (w.inputEl) {
w.inputEl.remove()
}
// calls the widget remove callback
w.onRemoved?.()
}
}
const CreatePreviewElement = (name, val, format) => {
const [type] = format.split('/')
const w = {
name,
type,
value: val,
draw: function (ctx, node, widgetWidth, widgetY, height) {
const [cw, ch] = this.computeSize(widgetWidth)
offsetDOMWidget(this, ctx, node, widgetWidth, widgetY, ch)
},
computeSize: function (_) {
const ratio = this.inputRatio || 1
const width = Math.max(220, this.parent.size[0])
return [width, (width / ratio + 10)]
},
onRemoved: function () {
if (this.inputEl) {
this.inputEl.remove()
}
},
}
w.inputEl = document.createElement(type === 'video' ? 'video' : 'img')
w.inputEl.src = w.value
if (type === 'video') {
w.inputEl.setAttribute('type', 'video/webm');
w.inputEl.autoplay = true
w.inputEl.loop = true
w.inputEl.controls = false;
}
w.inputEl.onload = function () {
w.inputRatio = w.inputEl.naturalWidth / w.inputEl.naturalHeight
}
document.body.appendChild(w.inputEl)
return w
}
const gif_preview = {
name: 'AnimateDiff.gif_preview',
async beforeRegisterNodeDef(nodeType, nodeData, app) {
switch (nodeData.name) {
case 'ADE_AnimateDiffCombine':{
const onExecuted = nodeType.prototype.onExecuted
nodeType.prototype.onExecuted = function (message) {
const prefix = 'ad_gif_preview_'
const r = onExecuted ? onExecuted.apply(this, message) : undefined
if (this.widgets) {
const pos = this.widgets.findIndex((w) => w.name === `${prefix}_0`)
if (pos !== -1) {
for (let i = pos; i < this.widgets.length; i++) {
this.widgets[i].onRemoved?.()
}
this.widgets.length = pos
}
if (message?.gifs) {
message.gifs.forEach((params, i) => {
const previewUrl = api.apiURL(
'/view?' + new URLSearchParams(params).toString()
)
const w = this.addCustomWidget(
CreatePreviewElement(`${prefix}_${i}`, previewUrl, params.format || 'image/gif')
)
w.parent = this
})
}
const onRemoved = this.onRemoved
this.onRemoved = () => {
cleanupNode(this)
return onRemoved?.()
}
}
this.setSize([this.size[0], this.computeSize([this.size[0], this.size[1]])[1]])
return r
}
break
}
}
}
}
app.registerExtension(gif_preview)
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