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<html>
<head>
	<link rel="stylesheet" type="text/css" href="litegraph.css">
	<script type="text/javascript" src="litegraph.core.js"></script>
</head>
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<style>
.customtext_input {
    background-color: #FFFFFF;
}
@media (prefers-color-scheme: dark) {
    body {
        background-color: #202020;
    }
    .customtext_input {
        background-color: #202020;
        color: white;
    }
}
</style>
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<body style='width:100%; height:100%; overflow: hidden;'>
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<style>
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
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    z-index: 100; /* Sit on top */
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    left: 20%; /* Center the modal horizontally */
    right: 20%; /* Center the modal horizontally */
    bottom: 30%; /* Center the modal vertically */
/*     transform: translate(-50%, -50%); /* Use this to center the modal */ */
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    width: 50%; /* Set a width for the modal */
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    height: auto; /* Set a height for the modal */
    padding: 30px;
    background-color: #ff0000; /* Modal background */
    box-shadow: 0px 0px 20px #888888;
    border-radius: 10px;
    text-align: center;
}

.close {
    color: #aaaaaa;
    font-size: 24px; /* Decreased font-size */
    font-weight: bold;
    position: absolute;
    bottom: 10px; /* move the close button up a bit */
    left: 50%; /* center the close button horizontally */
    transform: translateX(-50%); /* use this to center the close button horizontally */
    width: 100%;
    text-align: center; /* center the text inside the button */
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

#modal-text {
    white-space: pre-line; /* This will respect line breaks */
    margin-bottom: 20px; /* Add some margin between the text and the close button*/
}
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@media only screen and (max-height: 850px) {
    #menu {
        margin-top: -70px;
    }
}
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</style>
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<div id="myErrorModal" class="modal">
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  <div class="modal-content">
    <p id="modal-text"></p>
    <span class="close">CLOSE</span>
  </div>
</div>
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<canvas id='mycanvas' width='1000' height='1000' style='width: 100%; height: 100%;'></canvas>
<script>
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var graph = new LGraph();

var canvas = new LGraphCanvas("#mycanvas", graph);

const ccc = document.getElementById("mycanvas");
const ctx = ccc.getContext("2d");
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let nodeOutputs = {}
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// Resize the canvas to match the size of the canvas element
function resizeCanvas() {
  ccc.width = ccc.offsetWidth;
  ccc.height = ccc.offsetHeight;
  canvas.draw(true, true);
}
// call the function when the page loads
resizeCanvas();
// call the function when the window is resized
window.addEventListener("resize", resizeCanvas);
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Remove sample_ from some sampler names.  
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var default_graph = {"last_node_id":9,"last_link_id":9,"nodes":[{"id":7,"type":"CLIPTextEncode","pos":[413,389],"size":{"0":425.27801513671875,"1":180.6060791015625},"flags":{},"order":3,"mode":0,"inputs":[{"name":"clip","type":"CLIP","link":5}],"outputs":[{"name":"CONDITIONING","type":"CONDITIONING","links":[6],"slot_index":0}],"properties":{},"widgets_values":["bad hands"]},{"id":6,"type":"CLIPTextEncode","pos":[415,186],"size":{"0":422.84503173828125,"1":164.31304931640625},"flags":{},"order":2,"mode":0,"inputs":[{"name":"clip","type":"CLIP","link":3}],"outputs":[{"name":"CONDITIONING","type":"CONDITIONING","links":[4],"slot_index":0}],"properties":{},"widgets_values":["masterpiece best quality girl"]},{"id":5,"type":"EmptyLatentImage","pos":[473,609],"size":{"0":315,"1":106},"flags":{},"order":1,"mode":0,"outputs":[{"name":"LATENT","type":"LATENT","links":[2],"slot_index":0}],"properties":{},"widgets_values":[512,512,1]},{"id":3,"type":"KSampler","pos":[863,186],"size":{"0":315,"1":262},"flags":{},"order":4,"mode":0,"inputs":[{"name":"model","type":"MODEL","link":1},{"name":"positive","type":"CONDITIONING","link":4},{"name":"negative","type":"CONDITIONING","link":6},{"name":"latent_image","type":"LATENT","link":2}],"outputs":[{"name":"LATENT","type":"LATENT","links":[7],"slot_index":0}],"properties":{},"widgets_values":[8566257,true,20,8,"euler","normal",1]},{"id":8,"type":"VAEDecode","pos":[1209,188],"size":{"0":210,"1":46},"flags":{},"order":5,"mode":0,"inputs":[{"name":"samples","type":"LATENT","link":7},{"name":"vae","type":"VAE","link":8}],"outputs":[{"name":"IMAGE","type":"IMAGE","links":[9],"slot_index":0}],"properties":{}},{"id":9,"type":"SaveImage","pos":[1451,189],"size":{"0":210,"1":26},"flags":{},"order":6,"mode":0,"inputs":[{"name":"images","type":"IMAGE","link":9}],"properties":{}},{"id":4,"type":"CheckpointLoader","pos":[26,474],"size":{"0":315,"1":122},"flags":{},"order":0,"mode":0,"outputs":[{"name":"MODEL","type":"MODEL","links":[1],"slot_index":0},{"name":"CLIP","type":"CLIP","links":[3,5],"slot_index":1},{"name":"VAE","type":"VAE","links":[8],"slot_index":2}],"properties":{},"widgets_values":["v1-inference.yaml","v1-5-pruned-emaonly.ckpt"]}],"links":[[1,4,0,3,0,"MODEL"],[2,5,0,3,3,"LATENT"],[3,4,1,6,0,"CLIP"],[4,6,0,3,1,"CONDITIONING"],[5,4,1,7,0,"CLIP"],[6,7,0,3,2,"CONDITIONING"],[7,3,0,8,0,"LATENT"],[8,4,2,8,1,"VAE"],[9,8,0,9,0,"IMAGE"]],"groups":[],"config":{},"extra":{},"version":0.4}
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function loadGraphData(graph, graph_data)
{
    graph.configure( graph_data);
    for (let n in graph._nodes) {
        n = graph._nodes[n];
        s = n.computeSize();
        s[0] = Math.max(n.size[0], s[0]);
        s[1] = Math.max(n.size[1], s[1]);
        n.size = s;
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        // If you break something in the backend and want to patch workflows in the frontend
        // This is the place to do this
        for (let w in n.widgets) {
            let wid = n.widgets[w];
            if (n.class_comfy == "KSampler" || n.class_comfy == "KSamplerAdvanced") {
                if (wid.name == "sampler_name") {
                    if (wid.value.startsWith("sample_")) {
                        wid.value = wid.value.slice(7);
                    }
                }
            }
        }
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    }
}
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function afterLoadGraph()
{
    let workflow = null;
    try {
        workflow = JSON.parse(localStorage.getItem("workflow"));
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        loadGraphData(graph, workflow);
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    } catch(err) {
    }

    if (!workflow) {
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        loadGraphData(graph, default_graph);
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    }

    function saveGraph() {
        localStorage.setItem("workflow", JSON.stringify(graph.serialize()));
    }

    setInterval(saveGraph, 1000);
    
}

function onObjectInfo(json) {
    for (let key in json) {
        function MyNode()
        {
            j = MyNode.__json_data;
            inp = j['input']['required'];
            this.class_comfy = MyNode.class_type_comfy;
            this._widgets = []
            min_height = 1;
            min_width = 1;
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            for (let x in inp) {
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                let default_val = min_val = max_val = step_val = multiline = dynamic_prompt = undefined;
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                if (inp[x].length > 1) {
                    default_val = inp[x][1]['default'];
                    min_val = inp[x][1]['min'];
                    max_val = inp[x][1]['max'];
                    step_val = inp[x][1]['step'];
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                    multiline = inp[x][1]['multiline'];
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                    dynamic_prompt = inp[x][1]['dynamic_prompt'];
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                }

                let type = inp[x][0];
                if (Array.isArray(type)) {
                    w = this.addWidget("combo", x, type[0], function(v){}, { values: type } );
                    this._widgets += [w]
                } else if (type == "INT") {
                    if (default_val == undefined) default_val = 0;
                    if (min_val == undefined) min_val = 0;
                    if (max_val == undefined) max_val = 2048;
                    if (step_val == undefined) step_val = 1;
                    w = this.addWidget("number", x, default_val, function(v){let s = this.options.step / 10;this.value = Math.round( v / s ) * s;}, { min: min_val, max: max_val, step: 10.0 * step_val} );
                    this._widgets += [w]
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                    if (x == "seed" || x == "noise_seed") {
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                        w1 = this.addWidget("toggle", "Random seed after every gen", true, function(v){}, { on: "enabled", off:"disabled"} );
                        w1.to_randomize = w;
                        this._widgets += [w1]
                    }
                } else if (type == "FLOAT") {
                    if (default_val == undefined) default_val = 0;
                    if (min_val == undefined) min_val = 0;
                    if (max_val == undefined) max_val = 2048;
                    if (step_val == undefined) step_val = 0.5;

                    // if (min_val == 0.0 && max_val == 1.0) {
                    //     w = this.slider = this.addWidget("slider", x, default_val, function(v){}, { min: min_val, max: max_val} );
                    // } else {
                        w = this.addWidget("number", x, default_val, function(v){}, { min: min_val, max: max_val, step: 10.0 * step_val} );
                    // }
                    this._widgets += [w]
                } else if (type == "STRING") {
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                    if (default_val == undefined) default_val = "";
                    if (multiline == undefined) multiline = false;
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                    if (dynamic_prompt == undefined) dynamic_prompt = false;
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                    if (multiline) {
                        var w = {
                            type: "customtext",
                            name: x,
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                            dynamic_prompt: dynamic_prompt,
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                            get value() { return this.input_div.value;},
                            set value(x) { this.input_div.value = x;},
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                            callback: function(v){console.log(v);},
                            options: {},
                            draw: function(ctx, node, widget_width, y, H){
                                var show_text = canvas.ds.scale > 0.5;
                                // this.input_div.style.top = `${y}px`;
                                let t = ctx.getTransform();
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                                let margin = 10;
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                                let x_div = t.a * margin * 2 + t.e;
                                let y_div = t.d * (y + H) + t.f;
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                                let width_div = (widget_width - margin * 2 - 3) * t.a;
                                let height_div = (this.parent.size[1] - (y + H) - 3)* t.d;
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                                this.input_div.style.left = `${x_div}px`;
                                this.input_div.style.top = `${y_div}px`;
                                this.input_div.style.width = width_div;
                                this.input_div.style.height = height_div;
                                this.input_div.style.position = 'absolute';
                                this.input_div.style.zIndex = 1;
                                this.input_div.style.fontSize = t.d * 10.0;

                                if (show_text) {
                                    this.input_div.hidden = false;
                                } else {
                                    this.input_div.hidden = true;
                                }
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                                ctx.save();
                                // ctx.fillText(String(this.value).substr(0,30), 0, y + H * 0.7);
                                ctx.restore();
                            },
                        };
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                        w.input_div = document.createElement('textarea');
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                        w.input_div.contentEditable = true;
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                        w.input_div.className = "customtext_input";
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                        w.input_div.style.overflow = 'hidden';
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                        w.input_div.style.overflowY = 'auto';
                        w.input_div.style.padding = 2;
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                        w.input_div.style.resize = 'none';
                        w.input_div.style.border = 'none';
                        w.input_div.value = default_val;
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                        document.addEventListener('click', function(event) {
                            if (!w.input_div.contains(event.target)) {
                                w.input_div.blur();
                            }
                            });
                        w.parent = this;
                        min_height = Math.max(min_height, 200);
                        min_width = Math.max(min_width, 400);
                        ccc.parentNode.appendChild(w.input_div);

                        w = this.addCustomWidget(w);
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                        canvas.onDrawBackground = function() {
                            for (let n in graph._nodes) {
                                n = graph._nodes[n];
                                for (let w in n.widgets) {
                                    let wid = n.widgets[w];
                                    if (Object.hasOwn(wid, 'input_div')) {
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                                        wid.input_div.style.left = -8000;
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                                        wid.input_div.style.position = 'absolute';
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                                    }
                                }
                            }
                        }
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                        // w = this.addWidget("text", x, "", function(v){}, { multiline:true } );
                        console.log(w, this);
                        this._widgets += [w]
                        this.onRemoved = function() {
                                    for (let y in this.widgets) {
                                        if (this.widgets[y].input_div) {
                                            this.widgets[y].input_div.remove();
                                        }
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                                    }
                                }
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                    } else {
                        w = this.addWidget("text", x, default_val, function(v){}, { multiline:false } );
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                        w.dynamic_prompt = dynamic_prompt;
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                        this._widgets += [w];
                    }
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                } else {
                    this.addInput(x, type);
                }
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                MyNode.prototype.getExtraMenuOptions = function(canvas, options) {
                    if(this.imgs) {
                        let img;
                        if(this.imageIndex != null) {
                            img = this.imgs[this.imageIndex];
                        } else if(this.overIndex != null) {
                            img = this.imgs[this.overIndex];
                        }
                        if(img) {
                            options.unshift({
                                content: "Open Image",
                                callback: () => window.open(img.src, "_blank")
                            });
                        }
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                    }
                }
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                MyNode.prototype.onDrawBackground = function(ctx) {
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                    if(!this.flags.collapsed) {
                        const output = nodeOutputs[this.id + ""];
                        if(output && output.images) {
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                            if(this.images !== output.images) {
                                this.images = output.images;
                                this.imgs = null;
                                this.imageIndex = null;
                                Promise.all(output.images.map(src => {
                                    return new Promise(r => {
                                        const img = new Image();
                                        img.onload = () => r(img);
                                        img.onerror = () => r(null);
                                        img.src = "/view/" + src;
                                    });
                                })).then(imgs => {
                                    if(this.images === output.images) {
                                        this.imgs = imgs.filter(Boolean);
                                        if(this.size[1] < 100) {
                                            this.size[1] = 250;
                                        }
                                        graph.setDirtyCanvas(true);
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                                    }
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                                });
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                            }
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                            if(this.imgs) {
                                const canvas = graph.list_of_graphcanvas[0];
                                const mouse = canvas.graph_mouse;
                                if(!canvas.pointer_is_down && this.pointerDown) {
                                    if(mouse[0] === this.pointerDown.pos[0] && mouse[1] === this.pointerDown.pos[1]) {
                                        this.imageIndex = this.pointerDown.index;
                                    }
                                    this.pointerDown = null;
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                                }
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                                let w = this.imgs[0].naturalWidth;
                                let h = this.imgs[0].naturalHeight;
                                let imageIndex = this.imageIndex;
                                const numImages = this.imgs.length;
                                if(numImages === 1 && !imageIndex) {
                                    this.imageIndex = imageIndex = 0;
                                }
                                let shiftY = this.type === "SaveImage" ? 55 : 0;
                                let dw = this.size[0];
                                let dh = this.size[1];
                                dh -= shiftY;

                                if(imageIndex == null) {
                                    let best = 0;
                                    let cellWidth;
                                    let cellHeight;
                                    let cols = 0;
                                    let shiftX = 0;
                                    for (let c = 1; c <= numImages; c++) {
                                        const rows = Math.ceil(numImages / c);
                                        const cW = dw / c;
                                        const cH = dh / rows;
                                        const scaleX = cW / w;
                                        const scaleY = cH / h;
                                        
                                        const scale = Math.min(scaleX, scaleY, 1);
                                        const imageW = w * scale;
                                        const imageH = h * scale;
                                        const area = imageW * imageH * numImages;
                                        
                                        if(area > best) {
                                            best = area;
                                            cellWidth = imageW;
                                            cellHeight = imageH;
                                            cols = c;
                                            shiftX = c * ((cW - imageW) / 2);
                                        }
                                    }
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Add thumbnails for multi batch image previews  
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                                    let anyHovered = false;
                                    this.imageRects = [];
                                    for (let i = 0; i < numImages; i++) {
                                        const img = this.imgs[i];
                                        const row = Math.floor(i / cols);
                                        const col = i % cols;
                                        const x = col * cellWidth + shiftX;
                                        const y = row * cellHeight + shiftY;
                                        if(!anyHovered) {
                                            anyHovered = LiteGraph.isInsideRectangle(mouse[0], mouse[1], x + this.pos[0], y + this.pos[1], cellWidth, cellHeight);
                                            if(anyHovered) {
                                                this.overIndex = i;
                                                let value = 110;
                                                if(canvas.pointer_is_down) {
                                                    if(!this.pointerDown || this.pointerDown.index !== i) {
                                                        this.pointerDown = {index: i, pos: [...mouse]};
                                                    }
                                                    value = 125;
                                                }
                                                ctx.filter = `contrast(${value}%) brightness(${value}%)`;
                                                canvas.canvas.style.cursor = "pointer";
                                            }
                                        }
                                        this.imageRects.push([x, y, cellWidth, cellHeight]);
                                        ctx.drawImage(img, x, y, cellWidth, cellHeight);
                                        ctx.filter = "none";
                                    }
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                                    if(!anyHovered) {
                                        this.pointerDown = null;
                                        this.overIndex = null;
                                    }
                                } else {
                                    // Draw individual
                                    const scaleX = dw / w;
                                    const scaleY = dh / h;
                                    const scale = Math.min(scaleX, scaleY, 1);

                                    w *= scale;
                                    h *= scale;

                                    let x = (dw - w) / 2;
                                    let y = (dh - h) / 2 + shiftY;
                                    ctx.drawImage(this.imgs[imageIndex], x, y, w, h); 
                                    
                                    const drawButton = (x, y, sz, text) => {
                                        const hovered = LiteGraph.isInsideRectangle(mouse[0], mouse[1], x + this.pos[0], y + this.pos[1], sz, sz);
                                        let fill = "#333";
                                        let textFill = "#fff";
                                        let isClicking = false;
                                        if(hovered) {
                                            canvas.canvas.style.cursor = "pointer";
                                            if(canvas.pointer_is_down) {
                                                fill = "#1e90ff";
                                                isClicking = true;
                                            } else {
                                                fill = "#eee";
                                                textFill = "#000";
                                            }
                                        } else {
                                            this.pointerWasDown = null;
                                        }
                                        
                                        ctx.fillStyle = fill;
                                        ctx.beginPath();
                                        ctx.roundRect(x, y, sz, sz, [4]);
                                        ctx.fill();
                                        ctx.fillStyle = textFill;
                                        ctx.font = "12px Arial";
                                        ctx.textAlign = "center";
                                        ctx.fillText(text, x + 15, y + 20);

                                        return isClicking;
                                    }
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                                    if(numImages > 1) {
                                        if(drawButton(x + w - 35, y + h - 35, 30, `${this.imageIndex+1}/${numImages}`)) {
                                            let i = this.imageIndex + 1 >= numImages ? 0 : this.imageIndex + 1;
                                            if(!this.pointerDown || !this.pointerDown.index === i) {
                                                this.pointerDown = {index: i, pos: [...mouse]};
                                            }
                                        }
                                        
                                        if(drawButton(x + w - 35, y + 5, 30, `x`)) {
                                            if(!this.pointerDown || !this.pointerDown.index === null) {
                                                this.pointerDown = {index: null, pos: [...mouse]};
                                            }
                                        }
                                    }
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                                }
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                            }
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                        }
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                    }
                };
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            }

            out = j['output'];
            for (let x in out) {
                this.addOutput(out[x], out[x]);
            }
            s = this.computeSize();
            s[0] *= 1.5;
            s[0] = Math.max(min_width, s[0]);
            s[1] = Math.max(min_height, s[1]);
            this.size = s;
            this.serialize_widgets = true;
        }
        MyNode.title = json[key]['name'];
        MyNode.class_type_comfy = json[key]['name'];
        MyNode.__json_data = json[key]

        LiteGraph.registerNodeType(key, MyNode);
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        MyNode.category = json[key]['category'];
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    };

    afterLoadGraph();
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    // loadGraphData(graph, JSON.parse(base_txt2img_graph));
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}

fetch("object_info", {cache: "no-store"})
  .then(response => response.json())
  .then(json => onObjectInfo(json));


//register in the system
graph.start();
// LiteGraph.registerNodeType("testing", MyAddNode);


graph.onNodeRemoved = function(n) {
    for (let y in n.widgets) {
        if (n.widgets[y].input_div) {
            n.widgets[y].input_div.remove();
        }
    }
}

function graphToPrompt() {
    let s = graph.serialize();
    let output = {};
    // console.log(s['nodes']);
    nodes = s['nodes']

    for (let x in nodes) {
        let n = graph.getNodeById(nodes[x].id);
        let input_ = {};
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        // dynamic prompts handling
        if (n.widgets && n.widgets.length > 0) {
            // find widgets declared as supporting dynamic prompting
            var supportedWidgets = n.widgets.filter(e => e.dynamic_prompt === true);
            if (supportedWidgets.length > 0) {

                // resolve dynamic prompts for all widgets supporting it in this node
                for (let i in supportedWidgets)
                {
                    var widget = supportedWidgets[i];

                    // store the unresolved prompt to restore it after sending the resolved prompt to the backend
                    // use of .innerText which keep \n symbols in order to not break multilines support
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Switch the CLIPTextEncode div to a textarea.  
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                    widget.value_initial = widget.input_div.value;
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                    // resolve the string
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Switch the CLIPTextEncode div to a textarea.  
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                    var prompt = widget.input_div.value;
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Document dynamic prompts and add escaping of {} characters.  
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                    while (prompt.replace("\\{", "").includes('{') && prompt.replace("\\}", "").includes('}')) {
                        const startIndex = prompt.replace("\\{", "00").indexOf('{');
                        const endIndex = prompt.replace("\\}", "00").indexOf('}');
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                        const optionsString = prompt.substring(startIndex + 1, endIndex);
                        const options = optionsString.split('|');
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                        const randomIndex = Math.floor(Math.random() * options.length);
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                        const randomOption = options[randomIndex];

                        prompt = prompt.substring(0, startIndex) + randomOption + prompt.substring(endIndex + 1);
                    }
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                    widget.value = prompt;
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                }
            }
        }
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        for (let y in n.widgets) {
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            if (!Object.hasOwn(n.widgets[y], 'to_randomize')) { //don't include "Random seed after every gen" in prompt.
                if (n.widgets[y].dynamic_prompt && n.widgets[y].dynamic_prompt === true) {
                    input_[n.widgets[y].name] = n.widgets[y].value.replace("\\{", "{").replace("\\}", "}");
                } else {
                    input_[n.widgets[y].name] = n.widgets[y].value;
                }
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Fix escaped \{ appearing as { in workflows.  
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            }
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        }
        for (let y in n.inputs) {
            let parent_node = n.getInputNode(y);
            if (parent_node) {
                for (let z in parent_node.outputs) {
                    let c_nodes = parent_node.getOutputNodes(z);
                    // console.log(c_nodes, z);
                    if (c_nodes) {
                        for (let zz in c_nodes) {
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Web interface bug fix for multiple inputs from the same node.  
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                            if (c_nodes[zz].id == n.id && parent_node.outputs[z].links.includes(n.inputs[y].link)) {
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                                input_[n.inputs[y].name] = [String(parent_node.id), parseInt(z)];
                                break;
                            }
                        }
                    }
                }
            }
        }
        let node = {}
        node['inputs'] = input_;
        node['class_type'] = n.class_comfy;
        // inputs = x['inputs']
//         inputs['name'], inputs['id']
        // console.log(x, n);
        // console.log(node);
        output[String(n.id)] = node;
    }

    return output;
}
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Use a modal instead of an alert so the errors show up even on colab.  
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function closeModal() {
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    var modal = document.getElementById("myErrorModal");
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    modal.style.display = "none";
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}
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function showModal(text) {
    var modal = document.getElementById("myErrorModal");
    var modalText = document.getElementById("modal-text");
    modalText.innerHTML = text;
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    modal.style.display = "block";
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    var closeBtn = modal.getElementsByClassName("close")[0];
    closeBtn.onclick = function(event) {closeModal();}
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}
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function promptPosted(data)
{
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    if (data.status != 200) {
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        data.text().then(dt => showModal(dt));
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        return;
    }

    let s = graph.serialize();
    let output = {};
    // console.log(s['nodes']);
    nodes = s['nodes']

    for (let x in nodes) {
        let n = graph.getNodeById(nodes[x].id);
        for (let w in n.widgets) {
            let wid = n.widgets[w];
            if (Object.hasOwn(wid, 'to_randomize')) {
                if (wid.value) {
                    wid.to_randomize.value = Math.floor(Math.random() * 1125899906842624);
                }
            }
        }
    }

    canvas.draw(true, true);
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    loadQueueIfVisible();
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}
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function postPrompt(number) {
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    let prompt = graphToPrompt();
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    let full_data = {client_id: clientId, prompt: prompt, extra_data: {extra_pnginfo: {workflow: graph.serialize()}}};
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    if (number == -1) {
        full_data.front = true;
    } else
    if (number != 0) {
        full_data.number = number;
    }
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    fetch('/prompt', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json'
    },
    body: JSON.stringify(full_data)
    })
    .then(data => promptPosted(data))
    .catch(error => console.error(error))

    // console.log(JSON.stringify(prompt));
    // console.log(JSON.stringify(graph.serialize()));
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    // restore initial values replaced by dynamic prompting
    for (let x in graph._nodes_by_id) {
        let n = graph._nodes_by_id[x];
        for (let w in n.widgets) {
            let wid = n.widgets[w];
            if (wid.dynamic_prompt && wid.dynamic_prompt === true)
                wid.value = wid.value_initial;
        }
    }
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}


function promptToGraph(prompt) {
    for (let x in prompt) {
    
    }
}

function prompt_file_load(file)
{
    if (file.type === 'image/png') {
        const reader = new FileReader();
        reader.onload = (event) => {
            // Get the PNG data as a Uint8Array
            const pngData = new Uint8Array(event.target.result);
            const dataView = new DataView(pngData.buffer);

            // Check that the PNG signature is present
            if (dataView.getUint32(0) !== 0x89504e47) {
                console.error('Not a valid PNG file');
                return;
            }

            // Start searching for chunks after the PNG signature
            let offset = 8;
            let txt_chunks = {}
            // Loop through the chunks in the PNG file
            while (offset < pngData.length) {
                // Get the length of the chunk
                const length = dataView.getUint32(offset);
                // Get the chunk type
                const type = String.fromCharCode(...pngData.slice(offset + 4, offset + 8));
                if (type === 'tEXt') {
                    // Get the keyword
                    let keyword_end = offset + 8;
                    while (pngData[keyword_end] !== 0) {
                        keyword_end++;
                    }
                    const keyword = String.fromCharCode(...pngData.slice(offset + 8, keyword_end));
                    // Get the text
                    const text = String.fromCharCode(...pngData.slice(keyword_end + 1, offset + 8 + length));
                    txt_chunks[keyword] = text;
                }

                // Get the next chunk
                offset += 12 + length;
            }
            console.log(txt_chunks);
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            // console.log(JSON.parse(txt_chunks["prompt"]));
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            loadGraphData(graph, JSON.parse(txt_chunks["workflow"]));
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        };
        reader.readAsArrayBuffer(file);
    } else if (file.type === "application/json" || file.name.endsWith(".json")) {
        var reader = new FileReader();
        reader.onload = function() {
            console.log(reader.result);
            var jsonData = JSON.parse(reader.result);
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            loadGraphData(graph, jsonData);
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        };
        reader.readAsText(file);
    }
}

// Get prompt from dropped PNG or json
document.addEventListener('drop', (event) => {
    event.preventDefault();
    event.stopPropagation();
    const file = event.dataTransfer.files[0];
    console.log(file.type);
    prompt_file_load(file);
});
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let runningNodeId = null;
let progress = null;
let clientId = null;
const orig = LGraphCanvas.prototype.drawNodeShape;
LGraphCanvas.prototype.drawNodeShape = function(node, ctx, size, fgcolor, bgcolor, selected, mouse_over) {
    const res = orig.apply(this, arguments);

    if(node.id + "" === runningNodeId) { 
        const shape = node._shape || node.constructor.shape || LiteGraph.ROUND_SHAPE;
        ctx.lineWidth = 1;
        ctx.globalAlpha = 0.8;
        ctx.beginPath();
        if( shape == LiteGraph.BOX_SHAPE )
            ctx.rect(-6,-6 + LiteGraph.NODE_TITLE_HEIGHT, 12 + size[0]+1, 12 + size[1] + LiteGraph.NODE_TITLE_HEIGHT );
        else if (shape == LiteGraph.ROUND_SHAPE || (shape == LiteGraph.CARD_SHAPE && node.flags.collapsed) )
            ctx.roundRect(-6,-6 - LiteGraph.NODE_TITLE_HEIGHT, 12 +size[0]+1, 12 + size[1] + LiteGraph.NODE_TITLE_HEIGHT , this.round_radius * 2);
        else if (shape == LiteGraph.CARD_SHAPE)
            ctx.roundRect(-6,-6 + LiteGraph.NODE_TITLE_HEIGHT, 12 +size[0]+1, 12 + size[1] + LiteGraph.NODE_TITLE_HEIGHT , this.round_radius * 2, 2);
        else if (shape == LiteGraph.CIRCLE_SHAPE)
            ctx.arc(size[0] * 0.5, size[1] * 0.5, size[0] * 0.5 + 6, 0, Math.PI*2);
        ctx.strokeStyle = "#0f0"
        ctx.stroke();
        ctx.strokeStyle = fgcolor;
        ctx.globalAlpha = 1;

        if(progress) {
            ctx.fillStyle = "green";
            ctx.fillRect(0, 0, size[0] * (progress.value / progress.max), 6);
            ctx.fillStyle = bgcolor;
        }
    }
    
    return res;
}

function updateNodeProgress(v) {
    progress = v;
    graph.setDirtyCanvas(true, false);
}

function setRunningNode(id) {
    progress = null;
    runningNodeId = id;
    graph.setDirtyCanvas(true, false);
}
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Lower timeout and fix for colab.  
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Changed polling to use websockets  
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(() => {
    function updateStatus(data) {
        document.getElementById("queuesize").innerHTML = "Queue size: " + (data ? data.exec_info.queue_remaining : "ERR");
    }
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Removed socketio  
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    //fix for colab and other things that don't support websockets.
    function manually_fetch_queue() {
        fetch('/prompt')
            .then(response => response.json())
            .then(data => {
                updateStatus(data);
            }).catch((response) => {updateStatus(null)});
    }

    let ws;
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Changed polling to use websockets  
pythongosssss committed
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    function createSocket(isReconnect) {
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Removed socketio  
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        if(ws) return;
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Initial commit.  
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        let opened = false;
        ws = new WebSocket(`ws${window.location.protocol === "https:"? "s" : ""}://${location.host}/ws`);
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Moved api out to server  
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Removed socketio  
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        ws.addEventListener("open", () => {
            opened = true;
            if(isReconnect) {
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                closeModal();
            }
        });
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        ws.addEventListener("error", () => {
            if(ws) ws.close();
            manually_fetch_queue();
        });

        ws.addEventListener("close", () => {
            setTimeout(() => {
                ws = null;
                createSocket(true);
            }, 300);
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Changed polling to use websockets  
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            if(opened) {
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Lower timeout and fix for colab.  
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                updateStatus(null);
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                showModal("Reconnecting...");
            }
        });
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        ws.addEventListener("message", (event) => {
            try {
                const msg = JSON.parse(event.data);
                switch(msg.type) {
                    case "status":
                        if(msg.data.sid) {
                            clientId = msg.data.sid;
                        }
                        updateStatus(msg.data.status);
                        break;
                    case "progress":
                        updateNodeProgress(msg.data)
                        break;
                    case "executing":
                        setRunningNode(msg.data.node);
                        break;
                    case "executed":
                         nodeOutputs[msg.data.node] = msg.data.output;
                        break;
                    default:
                        throw new Error("Unknown message type")
                }
            } catch (error) {
                console.warn("Unhandled message:", event.data)
            }
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Changed polling to use websockets  
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        });
    }
    createSocket();
})();
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Initial commit.  
comfyanonymous committed
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Removed socketio  
pythongosssss committed
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Initial commit.  
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function clearGraph() {
    graph.clear();
}

function loadTxt2Img() {
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Nodes now support single line string properties.  
comfyanonymous committed
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    loadGraphData(graph, default_graph);
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Initial commit.  
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}

function saveGraph() {
    var json = JSON.stringify(graph.serialize()); // convert the data to a JSON string
    var blob = new Blob([json], {type: "application/json"});
    var url = URL.createObjectURL(blob);
    var a = document.createElement("a");
    a.style = "display: none";
    a.href = url;
    a.download = "workflow.json";
    document.body.appendChild(a);
    a.click();
    setTimeout(function() {
        document.body.removeChild(a);
        window.URL.revokeObjectURL(url);
    }, 0);
}

var input = document.createElement("input");
input.setAttribute("type", "file");
input.setAttribute("accept", ".json,image/png");
input.style.display = "none";
document.body.appendChild(input);

input.addEventListener('change', function() {
    var file = input.files[0];
    prompt_file_load(file);

});

function loadGraph() {
    input.click();
}
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Workflows can now be pasted with CTRL-V  
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document.addEventListener('paste', e=>{
    let data = (e.clipboardData || window.clipboardData).getData('text/plain');
    console.log(data);

    try {
        data = data.slice(data.indexOf('{'));
        j = JSON.parse(data);
    } catch(err) {
        data = data.slice(data.indexOf('workflow\n'));
        data = data.slice(data.indexOf('{'));
        j = JSON.parse(data);
    }


    if (Object.hasOwn(j, 'version') && Object.hasOwn(j, 'nodes') && Object.hasOwn(j, 'extra')) {
        loadGraphData(graph, j);
    }
});
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Added workflow history  
pythongosssss committed
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function deleteQueueElement(type, delete_id, then) {
    fetch('/' + type, {
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Add some simple queue management to the GUI.  
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    method: 'POST',
    headers: {
        'Content-Type': 'application/json'
    },
    body: JSON.stringify({"delete":[delete_id]})
    })
    .then(data => {
        console.log(data);
comfyanonymous's avatar
Fix delete sometimes not properly refreshing queue state.  
comfyanonymous committed
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        then();
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    })
    .catch(error => console.error(error))
}

function loadQueue() {
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    loadItems("queue")
}
function loadHistory() {
    loadItems("history")
}
function loadItems(type) {
    fetch('/' + type)
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    .then(response => response.json())
    .then(data => {
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Added workflow history  
pythongosssss committed
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        var queue_div = document.getElementById(type + "button-content");
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        queue_div.style.display = 'block';
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Added workflow history  
pythongosssss committed
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        var see_queue_button = document.getElementById("see" + type + "button");
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        let old_w = see_queue_button.style.width;
        see_queue_button.innerHTML = "Close";
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Added workflow history  
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        let runningcontents;
        if(type === "queue") {
            runningcontents = document.getElementById("runningcontents");
            runningcontents.innerHTML = '';
        }
        let queuecontents = document.getElementById(type + "contents");
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        queuecontents.innerHTML = '';
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Added workflow history  
pythongosssss committed
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        function append_to_list(list_element, append_to_element, append_delete, state) {
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            let number = list_element[0];
            let id = list_element[1];
            let prompt = list_element[2];
            let workflow = list_element[3].extra_pnginfo.workflow;
            let a = document.createElement("a");
            a.innerHTML = number + ": ";
            append_to_element.appendChild(a);
            let button = document.createElement("button");
            button.innerHTML = "Load";
            button.style.fontSize = "10px";
            button.workflow = workflow;
            button.onclick = function(event) {
                loadGraphData(graph, event.target.workflow);
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Added workflow history  
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                if(state) {
                    nodeOutputs = state;
                }
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            };

            append_to_element.appendChild(button);
            if (append_delete) {
                let button = document.createElement("button");
                button.innerHTML = "Delete";
                button.style.fontSize = "10px";
                button.delete_id = id;
                button.onclick = function(event) {
pythongosssss's avatar
changed to store history by uniqueid  
pythongosssss committed
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                    deleteQueueElement(type, event.target.delete_id, () => loadItems(type));
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                };
                append_to_element.appendChild(button);
            }
            append_to_element.appendChild(document.createElement("br"));
        }
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Added workflow history  
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        if(runningcontents) {
            for (let x in data.queue_running) {
                append_to_list(data.queue_running[x], runningcontents, false);
            }
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        }
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        let items;
        if(type === "queue") {
            items = data.queue_pending;
        } else {
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changed to store history by uniqueid  
pythongosssss committed
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            items = Object.values(data);
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Added workflow history  
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        }
        items.sort((a, b) => a[0] - b[0]);
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changed to store history by uniqueid  
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        for (let i of items) {
            append_to_list(type === "queue" ? i : i.prompt, queuecontents, true, i.outputs);
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        }
    }).catch((response) => {console.log(response)});
}

function loadQueueIfVisible()
{
    var queue_div = document.getElementById("queuebutton-content");
    if (queue_div.style.display == 'block') {
        loadQueue();
    }
}
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Added workflow history  
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function seeItems(type) {
    var queue_div = document.getElementById(type + "button-content");
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    if (queue_div.style.display == 'block') {
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Added workflow history  
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        closeItems(type)
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    } else {
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        loadItems(type);
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    }
}
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function seeQueue() {
    closeItems("history")
    seeItems("queue")
}

function seeHistory() {
    closeItems("queue")
    seeItems("history")
}

function closeItems(type) {
    var queue_div = document.getElementById(type + "button-content");
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Add some simple queue management to the GUI.  
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    queue_div.style.display = 'none';
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    var see_queue_button = document.getElementById("see" + type + "button");
    see_queue_button.innerHTML = "See " + type[0].toUpperCase() + type.substr(1)
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}
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function clearItems(type) {
    fetch('/' + type, {
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    method: 'POST',
    headers: {
        'Content-Type': 'application/json'
    },
    body: JSON.stringify({"clear":true})
    }).then(data => {
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Added workflow history  
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        loadItems(type);
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    })
    .catch(error => console.error(error));
}
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Initial commit.  
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</script>
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Shift menu up on small screens  
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<span id="menu" style="font-size: 15px;position: absolute; top: 50%; right: 0%; background-color: white; text-align: center; z-index: 100;width:170px">
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Initial commit.  
comfyanonymous committed
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<span id="queuesize">Queue size: X</span><br>
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<button style="font-size: 20px;width: 100%;" id="queuebutton" onclick="postPrompt(0)">Queue Prompt</button><br>
<span style="left: 0%;">
<button style="font-size: 10px;" id="queuebutton" onclick="postPrompt(-1)">Queue Front</button>
<button style="font-size: 10px; width: 50%;" id="seequeuebutton" onclick="seeQueue()">See Queue</button>
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Added workflow history  
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<button style="font-size: 10px; width: 50%;" id="seehistorybutton" onclick="seeHistory()">See History</button>
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<br>
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</span>
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  <div id="queuebutton-content" style="background-color: #e1e1e1;min-width: 160px;display: none;z-index: 101;">
    <span style="width:100%;padding: 3px;display:inline-block;">Running:</span>
    <div id="runningcontents" style="background-color: #d0d0d0; padding: 5px;">
        <a>1</a>
        <button style="font-size: 10px;">Load</button>
        <br>
    </div>
    <span style="left: 0%;padding: 3px;display:inline-block;">Queued:</span>
    <div id="queuecontents" style="overflow-y: scroll;height: 100px;background-color: #d0d0d0;padding: 5px;">
        <a>1</a>
        <button style="font-size: 10px;">Load</button>
        <button style="font-size: 10px;">Delete</button>
        <br>
    <br>
    </div>
  <span style="padding: 5px;display:inline-block;">
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changed to store history by uniqueid  
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  <button style="font-size: 12px;" onclick="clearItems('queue')">Clear Queue</button>
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  <button style="font-size: 12px;" onclick="loadQueue()">Refresh</button>
  </span>
  </div>
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  <div id="historybutton-content" style="background-color: #e1e1e1;min-width: 160px;display: none;z-index: 101;">
    <span style="width:100%;padding: 3px;display:inline-block;">History:</span>
    <div id="historycontents" style="overflow-y: scroll;height: 100px;background-color: #d0d0d0;padding: 5px;">
    </div>
    <span style="padding: 5px;display:inline-block;">
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changed to store history by uniqueid  
pythongosssss committed
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  <button style="font-size: 12px;" onclick="clearItems('history')">Clear History</button>
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Added workflow history  
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  <button style="font-size: 12px;" onclick="loadHistory()">Refresh</button>
    </span>
  </div>
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Initial commit.  
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<br>
<button style="font-size: 20px;" onclick="saveGraph()">Save</button><br>
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<button style="font-size: 20px;" onclick="loadGraph()">Load</button>
<br>
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Initial commit.  
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<button style="font-size: 20px;" onclick="clearGraph()">Clear</button><br>
<button style="font-size: 20px;" onclick="loadTxt2Img()">Load Default</button><br>
</span>
</body>
</html>