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Added support for a newsletter (alshedivat#2517)
In reference to idea: alshedivat#2097 In reference to request: alshedivat#923 (comment) Added support to integrate a [loops.so](https://loops.so/) mailing list into the site. To use, you need to enable `newsletter` in `_config.yml`. You also must specify a loops endpoint (although I think any mailing list endpoint can work), which you can get when you set up a mailing list on loops. More documentation on loops: [here](https://loops.so/docs/forms/custom-form). Once that is enabled, the behavior is different depending on how you specified your footer to behave in `_config.yml`. If `footer_fixed: true`, then the sign up will appear at the bottom of the about page, as well as at the bottom of blog posts, if you enable `related_posts`. If `footer_fixed: false`, then the newsletter signup will be in the footer (on every page), like it is in on [my website](https://asboyer.com). I'm not attached to the placement of the signup, and you can choose to include it wherever you want with `{% include scripts/newsletter.liquid %}`. Also if you include positional variables into that, you can choose how you center the signup. So `{% include scripts/newsletter.liquid left=true %}` positions the signup bar to the left. Here are some screenshots below: ## Dark version  ## Light version  I think the input field color should probably change to maybe be light for both themes? What do you think? I think the dark background looks cool, but I don't usually see that done like that on other sites. ## Footer fixed   ## Footer not fixed   To clarify, if footer isn't fixed, the email signup will appear on every page. --------- Co-authored-by: George <31376482+george-gca@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,176 @@ | ||
| <div | ||
| class="newsletter-form-container" | ||
| {% if include.center %} | ||
| style="margin: 20px" | ||
| {% endif %} | ||
| > | ||
| <form | ||
| class="newsletter-form" | ||
| action="https://app.loops.so/api/newsletter-form/{{ site.newsletter.endpoint }}" | ||
| method="POST" | ||
| style="justify-content: {% if include.left %}flex-start{% elsif include.right %}flex-end{% else %}center{% endif %}" | ||
| > | ||
| <input | ||
| class="newsletter-form-input" | ||
| name="newsletter-form-input" | ||
| type="email" | ||
| placeholder="user@example.com" | ||
| required="" | ||
| > | ||
|
|
||
| <button | ||
| type="submit" | ||
| class="newsletter-form-button" | ||
| style="justify-content: {% if include.left %}flex-start{% elsif include.right %}flex-end{% else %}center{% endif %}" | ||
| > | ||
| subscribe | ||
| </button> | ||
|
|
||
| <button | ||
| type="button" | ||
| class="newsletter-loading-button" | ||
| style="justify-content: {% if include.left %}flex-start{% elsif include.right %}flex-end{% else %}center{% endif %}" | ||
| > | ||
| Please wait... | ||
| </button> | ||
| </form> | ||
|
|
||
| <div | ||
| class="newsletter-success" | ||
| style="justify-content: {% if include.left %}flex-start{% elsif include.right %}flex-end{% else %}center{% endif %}" | ||
| > | ||
| <p class="newsletter-success-message">You're subscribed!</p> | ||
| </div> | ||
|
|
||
| <div | ||
| class="newsletter-error" | ||
| style="justify-content: {% if include.left %}flex-start{% elsif include.right %}flex-end{% else %}center{% endif %}" | ||
| > | ||
| <p class="newsletter-error-message">Oops! Something went wrong, please try again</p> | ||
| </div> | ||
|
|
||
| <button | ||
| class="newsletter-back-button" | ||
| type="button" | ||
| onmouseout='this.style.textDecoration="none"' | ||
| onmouseover='this.style.textDecoration="underline"' | ||
| > | ||
| ← Back | ||
| </button> | ||
| </div> | ||
|
|
||
| <script> | ||
| function submitHandler(event) { | ||
| event.preventDefault(); | ||
| var container = event.target.parentNode; | ||
| var form = container.querySelector('.newsletter-form'); | ||
| var formInput = container.querySelector('.newsletter-form-input'); | ||
| var success = container.querySelector('.newsletter-success'); | ||
| var errorContainer = container.querySelector('.newsletter-error'); | ||
| var errorMessage = container.querySelector('.newsletter-error-message'); | ||
| var backButton = container.querySelector('.newsletter-back-button'); | ||
| var submitButton = container.querySelector('.newsletter-form-button'); | ||
| var loadingButton = container.querySelector('.newsletter-loading-button'); | ||
| const rateLimit = () => { | ||
| errorContainer.style.display = 'flex'; | ||
| errorMessage.innerText = 'Too many signups, please try again in a little while'; | ||
| submitButton.style.display = 'none'; | ||
| formInput.style.display = 'none'; | ||
| backButton.style.display = 'block'; | ||
| }; | ||
| // Compare current time with time of previous sign up | ||
| var time = new Date(); | ||
| var timestamp = time.valueOf(); | ||
| var previousTimestamp = localStorage.getItem('loops-form-timestamp'); | ||
| // If last sign up was less than a minute ago | ||
| // display error | ||
| if (previousTimestamp && Number(previousTimestamp) + 60000 > timestamp) { | ||
| rateLimit(); | ||
| return; | ||
| } | ||
| localStorage.setItem('loops-form-timestamp', timestamp); | ||
| submitButton.style.display = 'none'; | ||
| loadingButton.style.display = 'flex'; | ||
| var formBody = 'userGroup=&email=' + encodeURIComponent(formInput.value); | ||
| fetch(event.target.action, { | ||
| method: 'POST', | ||
| body: formBody, | ||
| headers: { | ||
| 'Content-Type': 'application/x-www-form-urlencoded', | ||
| }, | ||
| }) | ||
| .then((res) => [res.ok, res.json(), res]) | ||
| .then(([ok, dataPromise, res]) => { | ||
| if (ok) { | ||
| // If response successful | ||
| // display success | ||
| success.style.display = 'flex'; | ||
| form.reset(); | ||
| } else { | ||
| // If response unsuccessful | ||
| // display error message or response status | ||
| dataPromise.then((data) => { | ||
| errorContainer.style.display = 'flex'; | ||
| errorMessage.innerText = data.message ? data.message : res.statusText; | ||
| }); | ||
| } | ||
| }) | ||
| .catch((error) => { | ||
| // check for cloudflare error | ||
| if (error.message === 'Failed to fetch') { | ||
| rateLimit(); | ||
| return; | ||
| } | ||
| // If error caught | ||
| // display error message if available | ||
| errorContainer.style.display = 'flex'; | ||
| if (error.message) errorMessage.innerText = error.message; | ||
| localStorage.setItem('loops-form-timestamp', ''); | ||
| }) | ||
| .finally(() => { | ||
| formInput.style.display = 'none'; | ||
| loadingButton.style.display = 'none'; | ||
| backButton.style.display = 'block'; | ||
| }); | ||
| } | ||
| function resetFormHandler(event) { | ||
| var container = event.target.parentNode; | ||
| var formInput = container.querySelector('.newsletter-form-input'); | ||
| var success = container.querySelector('.newsletter-success'); | ||
| var errorContainer = container.querySelector('.newsletter-error'); | ||
| var errorMessage = container.querySelector('.newsletter-error-message'); | ||
| var backButton = container.querySelector('.newsletter-back-button'); | ||
| var submitButton = container.querySelector('.newsletter-form-button'); | ||
| success.style.display = 'none'; | ||
| errorContainer.style.display = 'none'; | ||
| errorMessage.innerText = 'Oops! Something went wrong, please try again'; | ||
| backButton.style.display = 'none'; | ||
| formInput.style.display = 'flex'; | ||
| submitButton.style.display = 'flex'; | ||
| } | ||
| var formContainers = document.getElementsByClassName('newsletter-form-container'); | ||
| for (var i = 0; i < formContainers.length; i++) { | ||
| var formContainer = formContainers[i]; | ||
| var handlersAdded = formContainer.classList.contains('newsletter-handlers-added'); | ||
| if (handlersAdded) continue; | ||
| formContainer.querySelector('.newsletter-form').addEventListener('submit', submitHandler); | ||
| formContainer.querySelector('.newsletter-back-button').addEventListener('click', resetFormHandler); | ||
| formContainer.classList.add('newsletter-handlers-added'); | ||
| } | ||
| </script> | ||
|
|
||
| <noscript> | ||
| <style> | ||
| .newsletter-form-container { | ||
| display: none; | ||
| } | ||
| </style> | ||
| </noscript> |
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