Poll WIP (#231):

* backend form declaration
* frontend form dialog

conversejs/custom/plugins/poll/modals/poll-form.js

@@ -0,0 +1,45 @@
+// SPDX-FileCopyrightText: 2024 John Livingston <https://www.john-livingston.fr/>
+//
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { __ } from 'i18n'
+import BaseModal from 'plugins/modal/modal.js'
+import { api } from '@converse/headless/core'
+import { modal_close_button as ModalCloseButton } from 'plugins/modal/templates/buttons.js'
+import { html } from 'lit'
+import 'livechat-external-login-content.js'
+
+class PollFormModal extends BaseModal {
+  initialize () {
+    super.initialize()
+  }
+
+  renderModal () {
+    return html`<livechat-converse-poll-form .model=${this.model} .modal=${this}></livechat-converse-poll-form>`
+  }
+
+  getModalTitle () {
+    // eslint-disable-next-line no-undef
+    return __(LOC_new_poll)
+  }
+
+  renderModalFooter () {
+    return html`
+      <div class="modal-footer">
+        ${ModalCloseButton}
+        <button
+          type="submit"
+          class="btn btn-primary"
+          @click=${(ev) => {
+            ev.preventDefault()
+            this.querySelector('livechat-converse-poll-form form')?.requestSubmit()
+          }}
+        >
+          ${__('Ok')}
+        </button>
+      </div>
+    `
+  }
+}
+
+api.elements.define('livechat-converse-poll-form-modal', PollFormModal)