Fix auto submit on non-form elements

src/core/dom.js

@@ -557,6 +557,25 @@ const element_uuid = (el) => {
     return get_data(el, "uuid");
 };
 
+/**
+ * Find a related form element.
+ *
+ * @param {Node} el - The DOM node to start the search from.
+ * @returns {Node} - The closest form element.
+ *
+ * @example
+ * find_form(document.querySelector("input"));
+ */
+const find_form = (el) => {
+    // Prefer input.form which allows for input outside form elements and fall
+    // back to search for a parent form.
+    return (
+        el.form ||
+        el.querySelector("input, select, textarea, button")?.form ||
+        el.closest("form")
+    );
+};
+
 const dom = {
     toNodeArray: toNodeArray,
     querySelectorAllAndMe: querySelectorAllAndMe,
@@ -585,6 +604,7 @@ const dom = {
     get_visible_ratio: get_visible_ratio,
     escape_css_id: escape_css_id,
     element_uuid: element_uuid,
+    find_form: find_form,
     add_event_listener: events.add_event_listener, // BBB export. TODO: Remove in an upcoming version.
     remove_event_listener: events.remove_event_listener, // BBB export. TODO: Remove in an upcoming version.
 };

src/core/dom.test.js

@@ -903,3 +903,103 @@ describe("element_uuid", function () {
         window.crypto.randomUUID = orig_randomUUID;
     });
 });
+
+describe("find_form", function () {
+    it("example 1", function () {
+        document.body.innerHTML = `
+            <form>
+                <div id="start"></div>
+            </form>
+        `;
+        const el = document.querySelector("#start");
+        const form = document.querySelector("form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+
+    it("example 2", function () {
+        document.body.innerHTML = `
+            <form>
+                <input>
+            </form>
+        `;
+        const el = document.querySelector("input");
+        const form = document.querySelector("form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+
+    it("example 3", function () {
+        document.body.innerHTML = `
+            <form id="the-form">
+            </form>
+            <input form="the-form">
+        `;
+        const el = document.querySelector("input");
+        const form = document.querySelector("#the-form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+
+    it("example 4", function () {
+        document.body.innerHTML = `
+            <form id="the-form">
+            </form>
+            <form id="other-form">
+                <input form="the-form">
+            </form>
+        `;
+        const el = document.querySelector("input");
+        const form = document.querySelector("#the-form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+
+    it("example 5", function () {
+        document.body.innerHTML = `
+            <form id="the-form">
+            </form>
+            <form id="other-form">
+                <input form="the-form">
+            </form>
+        `;
+        const el = document.querySelector("#other-form");
+        const form = document.querySelector("#the-form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+
+    it("example 6", function () {
+        document.body.innerHTML = `
+            <form id="the-form">
+            </form>
+            <form id="other-form">
+                <select form="the-form"></select>
+            </form>
+        `;
+        const el = document.querySelector("#other-form");
+        const form = document.querySelector("#the-form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+
+    it("example 7", function () {
+        document.body.innerHTML = `
+            <form id="the-form">
+            </form>
+            <form id="other-form">
+                <textarea form="the-form"></textarea>
+            </form>
+        `;
+        const el = document.querySelector("#other-form");
+        const form = document.querySelector("#the-form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+
+    it("example 8", function () {
+        document.body.innerHTML = `
+            <form id="the-form">
+            </form>
+            <form id="other-form">
+                <button form="the-form"></button>
+            </form>
+        `;
+        const el = document.querySelector("#other-form");
+        const form = document.querySelector("#the-form");
+        expect(dom.find_form(el)).toBe(form);
+    });
+});

src/pat/auto-submit/auto-submit.js

@@ -1,6 +1,7 @@
 import "../../core/jquery-ext";
 import $ from "jquery";
 import Base from "../../core/base";
+import dom from "../../core/dom";
 import events from "../../core/events";
 import input_change_events from "../../lib/input-change-events";
 import logging from "../../core/logging";
@@ -46,7 +47,7 @@ export default Base.extend({
                 data?.pattern === "sortable"
             ) {
                 // Directly submit when removing a clone or changing the sorting.
-                this.el.dispatchEvent(events.submit_event());
+                dom.find_form(this.el).dispatchEvent(events.submit_event());
                 log.debug(
                     `triggered by pat-update, pattern: ${data.pattern}, action: ${data.action}`
                 );
@@ -128,7 +129,13 @@ export default Base.extend({
 
     onInputChange(e) {
         e.stopPropagation();
-        this.el.dispatchEvent(events.submit_event({ submitter: e.target }));
-        log.debug("triggered by " + e.type);
+        dom.find_form(this.el).dispatchEvent(
+            events.submit_event({ submitter: e.target })
+        );
+        log.debug(
+            `submit event triggered by event ${e.type} by submitter (1) on (2)`,
+            e.target,
+            this.el
+        );
     },
 });

src/pat/auto-submit/auto-submit.test.js

@@ -82,17 +82,12 @@ describe("pat-autosubmit", function () {
             `;
             const input = document.querySelector(".pat-autosubmit");
             new Pattern(input);
-            let submit_input_dispatched = false;
             let submit_form_dispatched = false;
-            input.addEventListener("submit", () => {
-                submit_input_dispatched = true;
-            });
             document.querySelector("form").addEventListener("submit", () => {
                 submit_form_dispatched = true;
             });
             input.dispatchEvent(events.input_event());
             await utils.timeout(1);
-            expect(submit_input_dispatched).toBe(true);
             expect(submit_form_dispatched).toBe(true);
         });
 
@@ -179,23 +174,41 @@ describe("pat-autosubmit", function () {
             `;
             const input = document.querySelector(".pat-autosubmit");
             new Pattern(input);
-            let submit_input_dispatched = false;
             let submit_form_dispatched = false;
-            input.addEventListener("submit", () => {
-                submit_input_dispatched = true;
-            });
             document.querySelector("form").addEventListener("submit", () => {
                 submit_form_dispatched = true;
             });
             input.dispatchEvent(events.input_event());
             await utils.timeout(1);
-            expect(submit_input_dispatched).toBe(false);
             expect(submit_form_dispatched).toBe(false);
             await utils.timeout(9);
-            expect(submit_input_dispatched).toBe(false);
             expect(submit_form_dispatched).toBe(false);
             await utils.timeout(10);
-            expect(submit_input_dispatched).toBe(true);
+            expect(submit_form_dispatched).toBe(true);
+        });
+
+        it("2.6 - when pat-autosubmit is defined not on aform element", async function () {
+            document.body.innerHTML = `
+              <form>
+                <div
+                    class="pat-autosubmit"
+                    data-pat-autosubmit="delay: 0"
+                >
+                    <input name="q">
+                </div>
+              </form>
+            `;
+            const input = document.querySelector("input");
+            const autosubmit = document.querySelector(".pat-autosubmit");
+            new Pattern(autosubmit);
+
+            let submit_form_dispatched = false;
+            document.querySelector("form").addEventListener("submit", () => {
+                submit_form_dispatched = true;
+            });
+
+            input.dispatchEvent(events.input_event());
+            await utils.timeout(1);
             expect(submit_form_dispatched).toBe(true);
         });
     });

src/pat/auto-suggest/auto-suggest.test.js

@@ -428,17 +428,20 @@ describe("pat-autosuggest", function () {
     describe("4 - Integration...", function () {
         it("4.1 - Works with pat-auto-submit", async function () {
             document.body.innerHTML = `
-                <input
-                    type="text"
-                    class="pat-autosuggest pat-autosubmit"
-                    data-pat-autosuggest="words: apple, orange, pear"
-                    data-pat-autosubmit="delay:0" />
+                <form>
+                    <input
+                        type="text"
+                        class="pat-autosuggest pat-autosubmit"
+                        data-pat-autosuggest="words: apple, orange, pear"
+                        data-pat-autosubmit="delay:0" />
+                </form>
             `;
 
             const pattern_autosubmit = (await import("../auto-submit/auto-submit")).default; // prettier-ignore
             const input = document.querySelector("input");
+
             let submit_dispatched = false;
-            input.addEventListener("submit", () => {
+            document.querySelector("form").addEventListener("submit", () => {
                 submit_dispatched = true;
             });
 

src/pat/inject/inject.js

@@ -105,6 +105,7 @@ const inject = {
                     });
                     // setup event handlers
                     if ($el[0]?.tagName === "FORM") {
+                        log.debug("Initializing form with injection on", $el[0]);
                         events.add_event_listener(
                             $el[0],
                             "submit",