Searchable models (#786)

* Searchable models

Creates searchable dropdowns for SD, VAE, or HN models. Also adds a reload models button (placed next to SD models, reloads everything including VAE and HN models).

* Fixing the editor pane display

* Revert "Fixing the editor pane display"

This reverts commit de902a6340.

* Move formatting to the CSS file

* Rewritten the siblings functions

I like these much better, and I imagine you will too. :)

* Code cleanup

* Minor tweak in list ordering

Minor tweak to move the root folder's content at the end of the list (similar to the current version).

ui/index.html

@@ -14,6 +14,7 @@
     <link rel="stylesheet" href="/media/css/modifier-thumbnails.css">
     <link rel="stylesheet" href="/media/css/fontawesome-all.min.css">
     <link rel="stylesheet" href="/media/css/image-editor.css">
+    <link rel="stylesheet" href="/media/css/searchable-models.css">
     <link rel="manifest" href="/media/manifest.webmanifest">
     <script src="/media/js/jquery-3.6.1.min.js"></script>
     <script src="/media/js/jquery-confirm.min.js"></script>
@@ -125,10 +126,9 @@
                     <tr><b class="settings-subheader">Image Settings</b></tr>
                     <tr class="pl-5"><td><label for="seed">Seed:</label></td><td><input id="seed" name="seed" size="10" value="0" onkeypress="preventNonNumericalInput(event)"> <input id="random_seed" name="random_seed" type="checkbox" checked><label for="random_seed">Random</label></td></tr>
                     <tr class="pl-5"><td><label for="num_outputs_total">Number of Images:</label></td><td><input id="num_outputs_total" name="num_outputs_total" value="1" size="1" onkeypress="preventNonNumericalInput(event)"> <label><small>(total)</small></label> <input id="num_outputs_parallel" name="num_outputs_parallel" value="1" size="1" onkeypress="preventNonNumericalInput(event)"> <label for="num_outputs_parallel"><small>(in parallel)</small></label></td></tr>
-                    <tr class="pl-5"><td><label for="stable_diffusion_model">Model:</label></td><td>
+                    <tr class="pl-5"><td><label for="stable_diffusion_model">Model:</label></td><td class="model-input">
-                        <select id="stable_diffusion_model" name="stable_diffusion_model">
+                        <input id="stable_diffusion_model" type="text" spellcheck="false" class="model-filter" data-path="" />
-                            <!-- <option value="sd-v1-4" selected>sd-v1-4</option> -->
+                        <button id="reload-models" class="secondaryButton reloadModels"><i class='fa-solid fa-rotate'></i></button>
-                        </select>
                         <a href="https://github.com/cmdr2/stable-diffusion-ui/wiki/Custom-Models" target="_blank"><i class="fa-solid fa-circle-question help-btn"><span class="simple-tooltip top-left">Click to learn more about custom models</span></i></a>
                     </td></tr>
                     <!-- <tr id="modelConfigSelection" class="pl-5"><td><label for="model_config">Model Config:</i></label></td><td>
@@ -136,9 +136,7 @@
                         </select>
                     </td></tr> -->
                     <tr class="pl-5"><td><label for="vae_model">Custom VAE:</i></label></td><td>
-                        <select id="vae_model" name="vae_model">
+                        <input id="vae_model" type="text" spellcheck="false" class="model-filter" data-path="" />
-                            <!-- <option value="" selected>None</option> -->
-                        </select>
                         <a href="https://github.com/cmdr2/stable-diffusion-ui/wiki/VAE-Variational-Auto-Encoder" target="_blank"><i class="fa-solid fa-circle-question help-btn"><span class="simple-tooltip top-left">Click to learn more about VAEs</span></i></a>
                     </td></tr>
                     <tr id="samplerSelection" class="pl-5"><td><label for="sampler_name">Sampler:</label></td><td>
@@ -210,9 +208,7 @@
                     <tr class="pl-5"><td><label for="guidance_scale_slider">Guidance Scale:</label></td><td> <input id="guidance_scale_slider" name="guidance_scale_slider" class="editor-slider" value="75" type="range" min="11" max="500"> <input id="guidance_scale" name="guidance_scale" size="4" pattern="^[0-9\.]+$" onkeypress="preventNonNumericalInput(event)"></td></tr>
                     <tr id="prompt_strength_container" class="pl-5"><td><label for="prompt_strength_slider">Prompt Strength:</label></td><td> <input id="prompt_strength_slider" name="prompt_strength_slider" class="editor-slider" value="80" type="range" min="0" max="99"> <input id="prompt_strength" name="prompt_strength" size="4" pattern="^[0-9\.]+$" onkeypress="preventNonNumericalInput(event)"><br/></td></tr>
                     <tr class="pl-5"><td><label for="hypernetwork_model">Hypernetwork:</i></label></td><td>
-                        <select id="hypernetwork_model" name="hypernetwork_model">
+                        <input id="hypernetwork_model" type="text" spellcheck="false" class="model-filter" data-path="" />
-                            <!-- <option value="" selected>None</option> -->
-                        </select>
                     </td></tr>
                     <tr id="hypernetwork_strength_container" class="pl-5">
                         <td><label for="hypernetwork_strength_slider">Hypernetwork Strength:</label></td>
@@ -427,6 +423,7 @@
 <script src="media/js/image-modifiers.js"></script>
 <script src="media/js/auto-save.js"></script>
 
+<script src="media/js/searchable-models.js"></script>
 <script src="media/js/main.js"></script>
 <script src="media/js/themes.js"></script>
 <script src="media/js/dnd.js"></script>

ui/media/css/searchable-models.css

@@ -0,0 +1,92 @@
+.model-list {
+    position: absolute;
+    margin-block-start: 2px;
+    display: none;
+    padding-inline-start: 0;
+    max-height: 200px;
+    overflow: auto;
+    background: var(--input-background-color);
+    border: var(--input-border-size) solid var(--input-border-color);
+    border-radius: var(--input-border-radius);
+    color: var(--input-text-color);
+    z-index: 1;
+    line-height: normal;
+}
+
+.model-list ul {
+    padding-right: 20px;
+    padding-inline-start: 0;
+    padding-bottom: 0px;
+}
+
+.model-list li {
+    padding-bottom: 0px;
+}
+
+.model-result {
+    list-style: none;
+}
+
+.model-no-result {
+    color: var(--text-color);
+    list-style: none;
+    padding: 3px 6px 3px 6px;
+    font-size: 10pt;
+    font-style: italic;
+    display: none;
+}
+
+.model-list li.model-folder {
+    color: var(--text-color);
+    list-style: none;
+    padding: 6px 6px 6px 6px;
+    font-size: 9pt;
+    font-weight: bold;
+}
+
+.model-list li.model-file {
+    color: var(--input-text-color);
+    list-style: none;
+    padding-left: 12px;
+    padding-right:20px;
+    font-size: 9pt;
+    font-weight: normal;
+    transition: none;
+    transition:property: none;
+    cursor: default;
+}
+
+.model-list li.model-file.in-root-folder {
+    padding-left: 6px;
+}
+
+.model-list li.model-file.selected {
+    background: grey;
+}
+
+.model-selector {
+    cursor: pointer;
+}
+
+.model-selector-arrow {
+    position: absolute;
+    width: 17px;
+    margin: 5px -17px;
+    padding-top: 3px;
+    cursor: pointer;
+    font-size: 8pt;
+}
+
+.model-input {
+    white-space: nowrap;
+}
+
+.reloadModels {
+    background: var(--background-color2);
+    border: none;
+    padding: 0px 0px;
+}
+
+#reload-models.secondaryButton:hover {
+    background: var(--background-color2);
+}

ui/media/js/auto-save.js

@@ -93,6 +93,9 @@ async function initSettings() {
 }
 
 function getSetting(element) {
+    if (element.dataset && 'path' in element.dataset) {
+        return element.dataset.path
+    }
     if (typeof element === "string" || element instanceof String) {
         element = SETTINGS[element].element
     }
@@ -102,6 +105,10 @@ function getSetting(element) {
     return element.value
 }
 function setSetting(element, value) {
+    if (element.dataset && 'path' in element.dataset) {
+        element.dataset.path = value
+        return // no need to dispatch any event here because the models are not loaded yet
+    }
     if (typeof element === "string" || element instanceof String) {
         element = SETTINGS[element].element
     }

ui/media/js/main.js

@@ -37,9 +37,9 @@ let gfpganModelField = document.querySelector("#gfpgan_model")
 let useUpscalingField = document.querySelector("#use_upscale")
 let upscaleModelField = document.querySelector("#upscale_model")
 let upscaleAmountField = document.querySelector("#upscale_amount")
-let stableDiffusionModelField = document.querySelector('#stable_diffusion_model')
+let stableDiffusionModelField = new ModelDropdown(document.querySelector('#stable_diffusion_model'), 'stable-diffusion')
-let vaeModelField = document.querySelector('#vae_model')
+let vaeModelField = new ModelDropdown(document.querySelector('#vae_model'), 'vae', 'None')
-let hypernetworkModelField = document.querySelector('#hypernetwork_model')
+let hypernetworkModelField = new ModelDropdown(document.querySelector('#hypernetwork_model'), 'hypernetwork', 'None')
 let hypernetworkStrengthSlider = document.querySelector('#hypernetwork_strength_slider')
 let hypernetworkStrengthField = document.querySelector('#hypernetwork_strength')
 let outputFormatField = document.querySelector('#output_format')
@@ -962,7 +962,7 @@ function getCurrentUserRequest() {
             // allow_nsfw: allowNSFWField.checked,
             vram_usage_level: vramUsageLevelField.value,
             //render_device: undefined, // Set device affinity. Prefer this device, but wont activate.
-            use_stable_diffusion_model: stableDiffusionModelField.value,
+            use_stable_diffusion_ll: stableDiffusionModelField.value,
             use_vae_model: vaeModelField.value,
             stream_progress_updates: true,
             stream_image_progress: (numOutputsTotal > 50 ? false : streamImageProgressField.checked),
@@ -1315,79 +1315,6 @@ outputFormatField.addEventListener('change', e => {
     }
 })
 
-async function getModels() {
-    try {
-        const sd_model_setting_key = "stable_diffusion_model"
-        const vae_model_setting_key = "vae_model"
-        const hypernetwork_model_key = "hypernetwork_model"
-        const gfpgan_model_key = "gfpgan_model"
-        const selectedSDModel = SETTINGS[sd_model_setting_key].value
-        const selectedVaeModel = SETTINGS[vae_model_setting_key].value
-        const selectedHypernetworkModel = SETTINGS[hypernetwork_model_key].value
-        const selectedGfpganModel = SETTINGS[gfpgan_model_key].value
-
-        const models = await SD.getModels()
-        const modelsOptions = models['options']
-        if ("scan-error" in models) {
-            // let previewPane = document.getElementById('tab-content-wrapper')
-            let previewPane = document.getElementById('preview')
-            previewPane.style.background="red"
-            previewPane.style.textAlign="center"
-            previewPane.innerHTML = '<H1>🔥Malware alert!🔥</H1><h2>The file <i>' + models['scan-error'] + '</i> in your <tt>models/stable-diffusion</tt> folder is probably malware infected.</h2><h2>Please delete this file from the folder before proceeding!</h2>After deleting the file, reload this page.<br><br><button onClick="window.location.reload();">Reload Page</button>'
-            makeImageBtn.disabled = true
-        }
-
-        const stableDiffusionOptions = modelsOptions['stable-diffusion']
-        const vaeOptions = modelsOptions['vae']
-        const hypernetworkOptions = modelsOptions['hypernetwork']
-        const gfpganOptions = modelsOptions['gfpgan']
-
-        vaeOptions.unshift('') // add a None option
-        hypernetworkOptions.unshift('') // add a None option
-
-        function createModelOptions(modelField, selectedModel, path="") {
-            return function fn(modelName) {
-                if (typeof(modelName) == 'string') {
-                    const modelOption = document.createElement('option')
-                    modelOption.value =  path + modelName
-                    modelOption.innerHTML = modelName !== '' ? (path != "" ? "&nbsp;&nbsp;"+modelName : modelName) : 'None'
-
-                    if (path + modelName === selectedModel) {
-                        modelOption.selected = true
-                    }
-                    modelField.appendChild(modelOption)
-                } else {
-                    // Since <optgroup/>s can't be nested, don't show empty groups
-                    if (modelName[1].some(child => typeof(child) == 'string')) {
-                        const modelGroup = document.createElement('optgroup')
-                        modelGroup.label = path + modelName[0]
-                        modelField.appendChild(modelGroup)
-                    }
-                    modelName[1].forEach( createModelOptions(modelField, selectedModel, path + modelName[0] + "/" ) )
-                }
-            }
-        }
-
-        stableDiffusionOptions.forEach(createModelOptions(stableDiffusionModelField, selectedSDModel))
-        vaeOptions.forEach(createModelOptions(vaeModelField, selectedVaeModel))
-        hypernetworkOptions.forEach(createModelOptions(hypernetworkModelField, selectedHypernetworkModel))
-        gfpganOptions.forEach(createModelOptions(gfpganModelField,selectedGfpganModel))
-
-
-        stableDiffusionModelField.dispatchEvent(new Event('change'))
-        vaeModelField.dispatchEvent(new Event('change'))
-        hypernetworkModelField.dispatchEvent(new Event('change'))
-
-        // TODO: set default for model here too
-        SETTINGS[sd_model_setting_key].default = stableDiffusionOptions[0]
-        if (getSetting(sd_model_setting_key) == '' || SETTINGS[sd_model_setting_key].value == '') {
-            setSetting(sd_model_setting_key, stableDiffusionOptions[0])
-        }
-    } catch (e) {
-        console.log('get models error', e)
-    }
-}
-
 function checkRandomSeed() {
     if (randomSeedField.checked) {
         seedField.disabled = true

ui/media/js/searchable-models.js

@@ -0,0 +1,591 @@
+"use strict"
+
+let modelsCache
+let modelsOptions
+
+/*
+*** SEARCHABLE MODELS ***
+Creates searchable dropdowns for SD, VAE, or HN models.
+Also adds a reload models button (placed next to SD models, reloads everything including VAE and HN models).
+More reload buttons may be added at strategic UI locations as needed.
+Merely calling getModels() makes all the magic happen behind the scene to refresh the dropdowns.
+
+HOW TO CREATE A MODEL DROPDOWN:
+1) Create an input element. Make sure to add a data-path property, as this is how model dropdowns are identified in auto-save.js.
+<input id="stable_diffusion_model" type="text" spellcheck="false" class="model-filter" data-path="" />
+
+2) Just declare one of these for your own dropdown (remember to change the element id, e.g. #stable_diffusion_models to your own input's id).
+let stableDiffusionModelField = new ModelDropdown(document.querySelector('#stable_diffusion_model'), 'stable-diffusion')
+let vaeModelField = new ModelDropdown(document.querySelector('#vae_model'), 'vae', 'None')
+let hypernetworkModelField = new ModelDropdown(document.querySelector('#hypernetwork_model'), 'hypernetwork', 'None')
+
+3) Model dropdowns will be refreshed automatically when the reload models button is invoked.
+*/
+class ModelDropdown
+{
+    modelFilter //= document.querySelector("#model-filter")
+    modelFilterArrow //= document.querySelector("#model-filter-arrow")
+    modelList //= document.querySelector("#model-list")
+    modelResult //= document.querySelector("#model-result")
+    modelNoResult //= document.querySelector("#model-no-result")
+    
+    currentSelection //= { elem: undefined, value: '', path: ''}
+    highlightedModelEntry //= undefined
+    activeModel //= undefined
+
+    inputModels //= undefined
+    modelKey //= undefined
+    flatModelList //= []
+    noneEntry //= ''
+
+    /* MIMIC A REGULAR INPUT FIELD */
+    get parentElement() {
+        return this.modelFilter.parentElement
+    }
+    get parentNode() {
+        return this.modelFilter.parentNode
+    }
+    get value() {
+        return this.modelFilter.dataset.path
+    }
+    set value(path) {
+        this.modelFilter.dataset.path = path
+        this.selectEntry(path)
+    }
+    addEventListener(type, listener, options) {
+        return this.modelFilter.addEventListener(type, listener, options)
+    }
+    dispatchEvent(event) {
+        return this.modelFilter.dispatchEvent(event)
+    }
+    appendChild(option) {
+        // do nothing
+    }
+
+    // remember 'this' - http://blog.niftysnippets.org/2008/04/you-must-remember-this.html
+    bind(f, obj) {
+        return function() {
+            return f.apply(obj, arguments)
+        }
+    }
+
+    /* SEARCHABLE INPUT */    
+    constructor (input, modelKey, noneEntry = '') {
+        this.modelFilter = input
+        this.noneEntry = noneEntry
+        this.modelKey = modelKey
+
+        if (modelsOptions !== undefined) { // reuse models from cache (only useful for plugins, which are loaded after models)
+            this.inputModels = modelsOptions[this.modelKey]
+            this.populateModels()
+        }
+        document.addEventListener("refreshModels", this.bind(function(e) {
+            // reload the models
+            this.inputModels = modelsOptions[this.modelKey]
+            this.populateModels()
+        }, this))
+    }
+
+    saveCurrentSelection(elem, value, path) {
+        this.currentSelection.elem = elem
+        this.currentSelection.value = value
+        this.currentSelection.path = path
+        this.modelFilter.dataset.path = path
+        this.modelFilter.value = value
+        this.modelFilter.dispatchEvent(new Event('change'))
+    }
+    
+    processClick(e) {
+        e.preventDefault()
+        if (e.srcElement.classList.contains('model-file')) {
+            this.saveCurrentSelection(e.srcElement, e.srcElement.innerText, e.srcElement.dataset.path)
+            this.hideModelList()
+            this.modelFilter.focus()
+            this.modelFilter.select()
+        }
+    }
+
+    findPreviousSibling(elem) {
+        // is there an immediate sibling?
+        let prevSibling = elem.previousElementSibling
+        if (prevSibling) {
+            // if the previous sibling is a model file, just select it
+            if (prevSibling.classList.contains('model-file')) return prevSibling
+            
+            // if the previous sibling is a model folder, select the last model file it contains
+            if (prevSibling.classList.contains('model-folder')) return prevSibling.firstElementChild.lastElementChild
+        }
+
+        // no sibling model file and no sibling model folder. look for siblings around the parent element.
+        prevSibling = elem.parentElement.parentElement.previousElementSibling
+        if (prevSibling) {
+            // if the previous entry is a model file, select it
+            if (prevSibling.classList.contains('model-file')) return prevSibling
+
+            // is there another model folder to jump to before the current one?
+            if (prevSibling.classList.contains('model-folder')) return prevSibling.firstElementChild.lastElementChild
+        }
+    }
+    
+    findNextSibling(elem) {
+        // is there an immediate sibling?
+        let nextSibling = elem.nextElementSibling
+        if (nextSibling) {
+            // if the next sibling is a model file, just select it
+            if (nextSibling.classList.contains('model-file')) return nextSibling
+            
+            // if the next sibling is a model folder, select the first model file it contains
+            if (nextSibling.classList.contains('model-folder')) return nextSibling.firstElementChild.firstElementChild
+        }
+
+        // no sibling model file and no sibling model folder. look for siblings around the parent element.
+        nextSibling = elem.parentElement.parentElement.nextElementSibling
+        if (nextSibling) {
+            // if the next entry is a model file, select it
+            if (nextSibling.classList.contains('model-file')) return nextSibling
+
+            // is there another model folder to jump to after the current one?
+            if (nextSibling.classList.contains('model-folder')) return nextSibling.firstElementChild.firstElementChild
+        }
+    }
+    
+    selectModelEntry(elem) {
+        if (elem) {
+            if (this.highlightedModelEntry !== undefined) {
+                this.highlightedModelEntry.classList.remove('selected')
+            }
+            this.saveCurrentSelection(elem, elem.innerText, elem.dataset.path)
+            elem.classList.add('selected')
+            elem.scrollIntoView({block: 'nearest'})
+            this.highlightedModelEntry = elem
+        }
+    }
+    
+    selectPreviousFile() {
+        const elem = this.findPreviousSibling(this.highlightedModelEntry)
+        if (elem) {
+            this.selectModelEntry(elem)
+        }
+        else
+        {
+            //this.highlightedModelEntry.parentElement.parentElement.scrollIntoView({block: 'nearest'})
+            this.highlightedModelEntry.closest('.model-list').scrollTop = 0
+        }
+        this.modelFilter.select()
+    }
+    
+    selectNextFile() {
+        this.selectModelEntry(this.findNextSibling(this.highlightedModelEntry))
+        this.modelFilter.select()
+    }
+    
+    selectFirstFile() {
+        this.selectModelEntry(this.modelList.querySelector('.model-file'))
+        this.highlightedModelEntry.scrollIntoView({block: 'nearest'})
+        this.modelFilter.select()
+    }
+    
+    selectLastFile() {
+        const elems = this.modelList.querySelectorAll('.model-file:last-child')
+        this.selectModelEntry(elems[elems.length -1])
+        this.modelFilter.select()
+    }
+
+    resetSelection() {
+        this.hideModelList()
+        this.showAllEntries()
+        this.modelFilter.value = this.currentSelection.value
+        this.modelFilter.focus()
+        this.modelFilter.select()
+    }
+
+    validEntrySelected() {
+        return (this.modelNoResult.style.display === 'none')
+    }
+    
+    processKey(e) {
+        switch (e.key) {
+            case 'Escape':
+                e.preventDefault()
+                this.resetSelection()
+                break
+            case 'Enter':
+                e.preventDefault()
+                if (this.validEntrySelected()) {
+                    if (this.modelList.style.display != 'block') {
+                        this.showModelList()
+                    }
+                    else
+                    {
+                        this.saveCurrentSelection(this.highlightedModelEntry, this.highlightedModelEntry.innerText, this.highlightedModelEntry.dataset.path)
+                        this.hideModelList()
+                    }
+                    this.modelFilter.focus()
+                }
+                else
+                {
+                    this.resetSelection()
+                }
+                break
+            case 'ArrowUp':
+                e.preventDefault()
+                if (this.validEntrySelected()) {
+                    this.selectPreviousFile()
+                }
+                break
+            case 'ArrowDown':
+                e.preventDefault()
+                if (this.validEntrySelected()) {
+                    this.selectNextFile()
+                }
+                break
+            case 'ArrowLeft':
+                if (this.modelList.style.display != 'block') {
+                    e.preventDefault()
+                }
+                break
+            case 'ArrowRight':
+                if (this.modelList.style.display != 'block') {
+                    e.preventDefault()
+                }
+                break
+            case 'PageUp':
+                e.preventDefault()
+                if (this.validEntrySelected()) {
+                    this.selectPreviousFile()
+                    this.selectPreviousFile()
+                    this.selectPreviousFile()
+                    this.selectPreviousFile()
+                    this.selectPreviousFile()
+                    this.selectPreviousFile()
+                    this.selectPreviousFile()
+                    this.selectPreviousFile()
+                }
+                break
+            case 'PageDown':
+                e.preventDefault()
+                if (this.validEntrySelected()) {
+                    this.selectNextFile()
+                    this.selectNextFile()
+                    this.selectNextFile()
+                    this.selectNextFile()
+                    this.selectNextFile()
+                    this.selectNextFile()
+                    this.selectNextFile()
+                    this.selectNextFile()
+                }
+                break
+            case 'Home':
+                //if (this.modelList.style.display != 'block') {
+                    e.preventDefault()
+                    if (this.validEntrySelected()) {
+                        this.selectFirstFile()
+                    }
+                //}
+                break
+            case 'End':
+                //if (this.modelList.style.display != 'block') {
+                    e.preventDefault()
+                    if (this.validEntrySelected()) {
+                        this.selectLastFile()
+                    }
+                //}
+                break
+            default:
+                //console.log(e.key)
+        }
+    }
+    
+    modelListFocus() {
+        this.selectEntry()
+        this.showAllEntries()
+    }
+    
+    showModelList() {
+        this.modelList.style.display = 'block'
+        this.selectEntry()
+        this.showAllEntries()
+        this.modelFilter.value = ''
+        this.modelFilter.focus()
+        this.modelFilter.style.cursor = 'auto'
+    }
+    
+    hideModelList() {
+        this.modelList.style.display = 'none'
+        this.modelFilter.value = this.currentSelection.value
+        this.modelFilter.style.cursor = ''
+    }
+    
+    toggleModelList(e) {
+        e.preventDefault()
+        if (this.modelList.style.display != 'block') {
+            this.showModelList()
+        }
+        else
+        {
+            this.hideModelList()
+            this.modelFilter.select()
+        }
+    }
+    
+    selectEntry(path) {
+        if (path !== undefined) {
+            const entries = this.modelList.querySelectorAll('.model-file');
+
+            for (let i = 0; i < entries.length; i++) {
+                if (entries[i].dataset.path == path) {
+                    this.saveCurrentSelection(entries[i], entries[i].innerText, entries[i].dataset.path)
+                    this.highlightedModelEntry = entries[i]
+                    entries[i].scrollIntoView({block: 'nearest'})
+                    break
+                }
+            }
+        }
+        
+        if (this.currentSelection.elem !== undefined) {
+            // select the previous element
+            if (this.highlightedModelEntry !== undefined && this.highlightedModelEntry != this.currentSelection.elem) {
+                this.highlightedModelEntry.classList.remove('selected')
+            }
+            this.currentSelection.elem.classList.add('selected')
+            this.highlightedModelEntry = this.currentSelection.elem
+            this.currentSelection.elem.scrollIntoView({block: 'nearest'})
+        }
+        else
+        {
+            this.selectFirstFile()
+        }
+    }
+    
+    highlightModelAtPosition(e) {
+        let elem = document.elementFromPoint(e.clientX, e.clientY)
+        
+        if (elem.classList.contains('model-file')) {
+            this.highlightModel(elem)
+        }
+    }
+    
+    highlightModel(elem) {
+        if (elem.classList.contains('model-file')) {
+            if (this.highlightedModelEntry !== undefined && this.highlightedModelEntry != elem) {
+                this.highlightedModelEntry.classList.remove('selected')
+            }
+            elem.classList.add('selected')
+            this.highlightedModelEntry = elem
+        }
+    }
+    
+    showAllEntries() {
+        this.modelList.querySelectorAll('li').forEach(function(li) {
+            if (li.id !== 'model-no-result') {
+                li.style.display = 'list-item'
+            }
+        })
+        this.modelNoResult.style.display = 'none'
+    }
+    
+    filterList(e) {
+        const filter = this.modelFilter.value.toLowerCase()
+        let found = false
+        let showAllChildren = false
+        
+        this.modelList.querySelectorAll('li').forEach(function(li) {
+            if (li.classList.contains('model-folder')) {
+                showAllChildren = false
+            }
+            if (filter == '') {
+                li.style.display = 'list-item'
+                found = true
+            } else if (showAllChildren || li.textContent.toLowerCase().match(filter)) {
+                li.style.display = 'list-item'
+                if (li.classList.contains('model-folder') && li.firstChild.textContent.toLowerCase().match(filter)) {
+                    showAllChildren = true
+                }
+                found = true
+            } else {
+                li.style.display = 'none'
+            }
+        })
+    
+        if (found) {
+            this.modelResult.style.display = 'list-item'
+            this.modelNoResult.style.display = 'none'
+            const elem = this.findNextSibling(this.modelList.querySelector('.model-file'))
+            this.highlightModel(elem)
+            elem.scrollIntoView({block: 'nearest'})
+        }
+        else
+        {
+            this.modelResult.style.display = 'none'
+            this.modelNoResult.style.display = 'list-item'
+        }
+        this.modelList.style.display = 'block'
+    }
+
+    /* MODEL LOADER */
+    flattenModelList(models, path) {
+        models.forEach(entry => {
+            if (Array.isArray(entry)) {
+                this.flattenModelList(entry[1], path + '/' + entry[0])
+            }
+            else
+            {
+                this.flatModelList.push(path == '' ? entry : path + '/' + entry)
+            }
+        })
+    }
+
+    // sort models
+    getFolder(model) {
+        return model.substring(0, model.lastIndexOf('/') + 1)
+    }
+    
+    sortModels(models) {
+        // sort the models in alphabetical order, root folder models last
+        models.sort((a, b) => a.toLowerCase().localeCompare(b.toLowerCase()))
+
+        /*
+        // sort the models in alphabetical order, root folder models first
+        models = models.sort()
+        let found
+        do {
+            found = false
+            for (let i = 0; i < models.length - 1; i++) {
+                if (
+                    (this.getFolder(models[i]) === this.getFolder(models[i+1]) && models[i].toLowerCase().localeCompare(models[i+1].toLowerCase()) > 0) // same folder, sort by alphabetical order
+                    || (this.getFolder(models[i]).toLowerCase().localeCompare(this.getFolder(models[i+1]).toLowerCase()) > 0) // L1 folder > L2 folder
+                ) {
+                    [models[i], models[i+1]] = [models[i+1], models[i]]
+                    found = true
+                }
+            }
+        } while (found)
+        */
+    }
+
+    populateModels() {
+        this.activeModel = this.modelFilter.dataset.path
+        
+        this.currentSelection = { elem: undefined, value: '', path: ''}
+        this.highlightedModelEntry = undefined
+        this.flatModelList = []
+
+        if(this.modelList !== undefined) {
+            this.modelList.remove()
+            this.modelFilterArrow.remove()
+        }
+        this.createDropdown()
+    }
+
+    createDropdown() {
+        // prepare to sort the models
+        this.flattenModelList(this.inputModels, '')
+        this.sortModels(this.flatModelList)
+
+        // create dropdown entries
+        this.modelFilter.insertAdjacentHTML('afterend', this.parseModels(this.flatModelList))
+        this.modelFilter.classList.add('model-selector')
+        this.modelFilterArrow = document.querySelector(`#${this.modelFilter.id}-model-filter-arrow`)
+        this.modelList = document.querySelector(`#${this.modelFilter.id}-model-list`)
+        this.modelResult = document.querySelector(`#${this.modelFilter.id}-model-result`)
+        this.modelNoResult = document.querySelector(`#${this.modelFilter.id}-model-no-result`)
+        this.modelList.style.display = 'block'
+        this.modelFilter.style.width = this.modelList.offsetWidth + 'px'
+        this.modelFilterArrow.style.height = this.modelFilter.offsetHeight + 'px'
+        this.modelList.style.display = 'none'
+    
+        this.modelFilter.addEventListener('input', this.bind(this.filterList, this))
+        this.modelFilter.addEventListener('focus', this.bind(this.modelListFocus, this))
+        this.modelFilter.addEventListener('blur', this.bind(this.hideModelList, this))
+        this.modelFilter.addEventListener('click', this.bind(this.showModelList, this))
+        this.modelFilter.addEventListener('keydown', this.bind(this.processKey, this))
+        this.modelFilterArrow.addEventListener('mousedown', this.bind(this.toggleModelList, this))
+        this.modelList.addEventListener('mousemove', this.bind(this.highlightModelAtPosition, this))
+        this.modelList.addEventListener('mousedown', this.bind(this.processClick, this))
+
+        this.selectEntry(this.activeModel)
+    }
+
+    parseModels(models) {
+        let html = `<i id="${this.modelFilter.id}-model-filter-arrow" class="model-selector-arrow fa-solid fa-angle-down"></i>
+            <ul id="${this.modelFilter.id}-model-list" class="model-list">
+                <li id="${this.modelFilter.id}-model-no-result" class="model-no-result">No result</li>
+                <li id="${this.modelFilter.id}-model-result" class="model-result">
+            <ul>
+        `
+        if (this.noneEntry != '') {
+            html += `<li data-path='' class='model-file in-root-folder'>${this.noneEntry}</li>`
+        }
+        
+        let currentFolder = ''
+        models.forEach(entry => {
+            const folder = entry.substring(0, 1) == '/' ? entry.substring(1, entry.lastIndexOf('/')) : ''
+            if (folder !== '' && folder !== currentFolder) {
+                if (currentFolder != '') {
+                    html += '</ul></li>'
+                }
+                html += `<li class='model-folder'>/${folder}<ul>`
+                currentFolder = folder
+            }
+            else if (folder == '' && currentFolder !== '') {
+                currentFolder = ''
+                html += '</ul></li>'
+            }
+            const modelName = entry.substring(entry.lastIndexOf('/') + 1)
+            if (entry.substring(0, 1) == '/') {
+                entry = entry.substring(1)
+            }
+            html += `<li data-path='${entry}' class='model-file${currentFolder == '' ? ' in-root-folder' : ''}'>${modelName}</li>`
+        })
+        if (currentFolder != '') {
+            html += '</ul></li>'
+        }
+        
+        html += `
+                    </ul>
+                </li>
+            </ul>
+            `
+        return html
+    }
+}
+
+/* (RE)LOAD THE MODELS */
+async function getModels() {
+    try {
+        modelsCache = await SD.getModels()
+        modelsOptions = modelsCache['options']
+        if ("scan-error" in modelsCache) {
+            // let previewPane = document.getElementById('tab-content-wrapper')
+            let previewPane = document.getElementById('preview')
+            previewPane.style.background="red"
+            previewPane.style.textAlign="center"
+            previewPane.innerHTML = '<H1>🔥Malware alert!🔥</H1><h2>The file <i>' + modelsCache['scan-error'] + '</i> in your <tt>models/stable-diffusion</tt> folder is probably malware infected.</h2><h2>Please delete this file from the folder before proceeding!</h2>After deleting the file, reload this page.<br><br><button onClick="window.location.reload();">Reload Page</button>'
+            makeImageBtn.disabled = true
+        }
+
+        /* This code should no longer be needed. Commenting out for now, will cleanup later.
+        const sd_model_setting_key = "stable_diffusion_model"
+        const vae_model_setting_key = "vae_model"
+        const hypernetwork_model_key = "hypernetwork_model"
+
+        const stableDiffusionOptions = modelsOptions['stable-diffusion']
+        const vaeOptions = modelsOptions['vae']
+        const hypernetworkOptions = modelsOptions['hypernetwork']
+
+        // TODO: set default for model here too
+        SETTINGS[sd_model_setting_key].default = stableDiffusionOptions[0]
+        if (getSetting(sd_model_setting_key) == '' || SETTINGS[sd_model_setting_key].value == '') {
+            setSetting(sd_model_setting_key, stableDiffusionOptions[0])
+        }
+        */
+
+        // notify ModelDropdown objects to refresh
+        document.dispatchEvent(new Event('refreshModels'))
+    } catch (e) {
+        console.log('get models error', e)
+    }
+}
+
+// reload models button
+document.querySelector('#reload-models').addEventListener('click', getModels)