Aspect ratio sliders

javascript/ComponentControllers.js

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+/* This is a basic library that allows controlling elements that take some form of user input.
+
+This was previously written in typescript, where all controllers implemented an interface. Not
+all methods were needed in all the controllers, but it was done to keep a common interface, so
+your main app can serve as a controller of controllers.
+
+These controllers were built to work on the shapes of html elements that gradio components use.
+
+There may be some notes in it that only applied to my use case, but I left them to help others
+along.
+
+You will need the parent element for these to work.
+The parent element can be defined as the element (div) that gets the element id when assigning
+an element id to a gradio component.
+
+Example:
+  gr.TextBox(value="...", elem_id="THISID")
+
+Basic usage, grab an element that is the parent container for the component.
+
+Send it in to the class, like a function, don't forget the "new" keyword so it calls the constructor
+and sends back a new object.
+
+Example:
+
+let txt2imgPrompt = new TextComponentController(gradioApp().querySelector("#txt2img_prompt"))
+
+Then use the getVal() method to get the value, or use the setVal(myValue) method to set the value.
+
+Input types that are groups, like Checkbox groups (not individual checkboxes), take in an array of values.
+
+Checkbox group has to reset all values to False (unchecked), then set the values in your array to true (checked).
+If you don't hold a reference to the values (the labels in string format), you can acquire them using the getVal() method.
+*/
+class DropdownComponentController {
+    constructor(element) {
+        this.element = element;
+        this.childSelector = this.element.querySelector('select');
+        this.children = new Map();
+        Array.from(this.childSelector.querySelectorAll('option')).forEach(opt => this.children.set(opt.value, opt));
+    }
+    getVal() {
+        return this.childSelector.value;
+    }
+    updateVal(optionElement) {
+        optionElement.selected = true;
+    }
+    setVal(name) {
+        this.updateVal(this.children.get(name));
+        this.eventHandler();
+    }
+    eventHandler() {
+        this.childSelector.dispatchEvent(new Event("change"));
+    }
+}
+class CheckboxComponentController {
+    constructor(element) {
+        this.element = element;
+        this.child = this.element.querySelector('input');
+    }
+    getVal() {
+        return this.child.checked;
+    }
+    updateVal(checked) {
+        this.child.checked = checked;
+    }
+    setVal(checked) {
+        this.updateVal(checked);
+        this.eventHandler();
+    }
+    eventHandler() {
+        this.child.dispatchEvent(new Event("change"));
+    }
+}
+class CheckboxGroupComponentController {
+    constructor(element) {
+        this.element = element;
+        //this.checkBoxes = new Object;
+        this.children = new Map();
+        Array.from(this.element.querySelectorAll('input')).forEach(input => this.children.set(input.nextElementSibling.innerText, input));
+        /* element id gets use fieldset, grab all inputs (the bool val) get the userfriendly label, use as key, put bool value in mapping   */
+        //Array.from(this.component.querySelectorAll("input")).forEach( _input => this.checkBoxes[_input.nextElementSibling.innerText] = _input)
+        /*Checkboxgroup structure
+        <fieldset>
+            <div> css makes translucent
+            <span>
+              serves as label for component
+            </span>
+            <div data-testid='checkbox-group'> container for checkboxes
+                <label>
+                    <input type=checkbox>
+                    <span>checkbox words</span>
+                </label>
+                ...
+            </div>
+        </fieldset>
+        */
+    }
+    updateVal(label) {
+        /*********
+         calls updates using a throttle or else the backend does not get updated properly
+         * ********/
+        setTimeout(() => this.conditionalToggle(true, this.children.get(label)), 2);
+    }
+    setVal(labels) {
+        /* Handles reset and updates all in array to true */
+        this.reupdateVals();
+        labels.forEach(l => this.updateVal(l));
+    }
+    getVal() {
+        //return the list of values that are true
+        return [...this.children].filter(([k, v]) => v.checked).map(arr => arr[0]);
+    }
+    reupdateVals() {
+        /**************
+         * for reupdating all vals, first set to false
+         **************/
+        this.children.forEach(inputChild => this.conditionalToggle(false, inputChild));
+    }
+    conditionalToggle(desiredVal, inputChild) {
+        //This method behaves like 'set this value to this'
+        //Using element.checked = true/false, does not register the change, even if you called change afterwards,
+        //  it only sets what it looks like in our case, because there is no form submit, a person then has to click on it twice.
+        //Options are to use .click() or dispatch an event
+        if (desiredVal != inputChild.checked) {
+            inputChild.dispatchEvent(new Event("change")); //using change event instead of click, in case browser ad-blockers blocks the click method
+        }
+    }
+    eventHandler(checkbox) {
+        checkbox.dispatchEvent(new Event("change"));
+    }
+}
+class RadioComponentController {
+    constructor(element) {
+        this.element = element;
+        this.children = new Map();
+        Array.from(this.element.querySelectorAll("input")).forEach(input => this.children.set(input.value, input));
+    }
+    getVal() {
+        //radio groups have a single element that's checked is true
+        //           as array       arr k,v pair    element.checked  ) -> array of len(1) with [k,v] so either [0] [1].value
+        return [...this.children].filter(([l, e]) => e.checked)[0][0];
+        //return Array.from(this.children).filter( ([label, input]) => input.checked)[0][1].value
+    }
+    updateVal(child) {
+        this.eventHandler(child);
+    }
+    setVal(name) {
+        //radio will trigger all false except the one that get the event change
+        //to keep the api similar, other methods are still called
+        this.updateVal(this.children.get(name));
+    }
+    eventHandler(child) {
+        child.dispatchEvent(new Event("change"));
+    }
+}
+class NumberComponentController {
+    constructor(element) {
+        this.element = element;
+        this.childNumField = element.querySelector('input[type=number]');
+    }
+    getVal() {
+        return this.childNumField.value;
+    }
+    updateVal(text) {
+        this.childNumField.value = text;
+    }
+    eventHandler() {
+        this.element.dispatchEvent(new Event("input"));
+    }
+    setVal(text) {
+        this.updateVal(text);
+        this.eventHandler();
+    }
+}
+class SliderComponentController {
+    constructor(element) {
+        this.element = element;
+        this.childNumField = this.element.querySelector('input[type=number]');
+        this.childRangeField = this.element.querySelector('input[type=range]');
+    }
+    getVal() {
+        return this.childNumField.value;
+    }
+    updateVal(text) {
+        //both are not needed, either works, both are left in so one is a fallback in case of gradio changes 
+        this.childNumField.value = text;
+        this.childRangeField.value = text;
+    }
+    eventHandler() {
+        this.element.dispatchEvent(new Event("input"));
+        this.childNumField.dispatchEvent(new Event("input"));
+        this.childRangeField.dispatchEvent(new Event("input"));
+    }
+    setVal(text) {
+        this.updateVal(text);
+        this.eventHandler();
+    }
+}
+class TextComponentController {
+    constructor(element) {
+        this.element = element;
+        this.child = element.querySelector('textarea');
+    }
+    getVal() {
+        return this.child.value;
+    }
+    eventHandler() {
+        this.element.dispatchEvent(new Event("input"));
+        this.child.dispatchEvent(new Event("change"));
+        //Workaround to solve no target with v(o) on eventhandler, define my own target
+        let ne = new Event("input");
+        Object.defineProperty(ne, "target", { value: this.child });
+        this.child.dispatchEvent(ne);
+    }
+    updateVal(text) {
+        this.child.value = text;
+    }
+    appendValue(text) {
+        //might add delimiter option
+        this.child.value += ` ${text}`;
+    }
+    setVal(text, append = false) {
+        if (append) {
+            this.appendValue(text);
+        }
+        else {
+            this.updateVal(text);
+        }
+        this.eventHandler();
+    }
+}
+class JsonComponentController extends TextComponentController {
+    constructor(element) {
+        super(element);
+    }
+    getVal() {
+        return JSON.parse(this.child.value);
+    }
+}
+class ColorComponentController {
+    constructor(element) {
+        this.element = element;
+        this.child = this.element.querySelector('input[type=color]');
+    }
+    updateVal(text) {
+        this.child.value = text;
+    }
+    getVal() {
+        return this.child.value;
+    }
+    setVal(text) {
+        this.updateVal(text);
+        this.eventHandler();
+    }
+    eventHandler() {
+        this.child.dispatchEvent(new Event("input"));
+    }
+}