from fasthtml.common import Div, fast_app, Script, Button, Label js_solution_2 = """ document.addEventListener("htmx:confirm", function(e) { console.log(e); // The event is triggered on every trigger for a request, so we need to check if the element // that triggered the request has a hx-confirm attribute, if not we can return early and let // the default behavior happen if (!e.detail.target.hasAttribute('hx-confirm')) return // This will prevent the request from being issued to later manually issue it e.preventDefault() Swal.fire({ title: "Proceed?", text: `I ask you... ${e.detail.question}` }).then(function(result) { if (result.isConfirmed) { // If the user confirms, we manually issue the request e.detail.issueRequest(true); // true to skip the built-in window.confirm() } }) }) """ app, rt = fast_app(hdrs=[Script(src="https://cdn.jsdelivr.net/npm/sweetalert2@11"), Script(js_solution_2)]) @app.get def page(): return Div(cls="container grid")(Label("Solution 1"), solution1(), Label("Solution 2"), solution2()) # ---- Solution 1 ---- def solution1(): js = """ Swal.fire({title: 'Confirm', text:'Do you want to continue?'}).then((result)=>{ if(result.isConfirmed){ htmx.trigger(this, 'confirmed'); } }) """ return Button("Click me", hx_get=confirmed, hx_trigger="confirmed", onClick=js) @app.get def confirmed(): return "Confirmed" # ---- Solution 2 ---- def solution2(): return Button("Click me", hx_get=confirmed, hx_confirm="Do you want to continue?") DESC = "Demonstrates how to implement a custom confirmation dialog with htmx" DOC = """ htmx supports the [hx-confirm](https://htmx.org/attributes/hx-confirm/) attribute to provide a simple mechanism for confirming a user action. This uses the default confirm() function in javascript which, while trusty, may not be consistent with your applications UX. In this example we will see how to use [sweetalert2](https://sweetalert2.github.io/) to implement a custom confirmation dialog. Below are two examples, one using a click+custom event method, and one using the built-in hx-confirm attribute and the [htmx:confirm](https://htmx.org/events/#htmx:confirm) event. ## Using on click+custom event ::solution1:: Here we use javascript to show a Sweet Alert 2 on a click, asking for confirmation. If the user confirms the dialog, we then trigger the request by triggering the custom “confirmed” event which is then picked up by hx-trigger. ## Vanilla JS, hx-confirm We add some javascript to invoke Sweet Alert 2 on a click, asking for confirmation. If the user confirms the dialog, we trigger the request by calling the issueRequest method. We pass `skipConfirmation=true` as argument to skip `window.confirm`. ::solution2:: Javascript code ::js_solution_2:: This allows to use hx-confirm’s value in the prompt which is convenient when the question depends on the element. Learn more about the htmx:confirm event [here](https://htmx.org/events/#htmx:confirm). """ HTMX_URL = "https://htmx.org/examples/confirm/" HEIGHT = "250px"