frontend: use postmessage to communicate with the iframe #3146
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -10,104 +10,123 @@ | |
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| <script lang="js"> | ||
| ;(() => { | ||
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|
||
| if (window.top === window) { | ||
| showError('Unexpected error'); | ||
| return; | ||
| } | ||
|
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| const onMessage = (event) => { | ||
| switch (event.data?.action) { | ||
| case 'configuration': | ||
| const { | ||
| address, | ||
| apiKey, | ||
| baseCurrency, | ||
| mode, | ||
| quoteCurrency, | ||
| } = event.data || {}; | ||
|
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| if ( // this should never happen, but if it does we stop here | ||
| !address | ||
| || !baseCurrency | ||
| || !quoteCurrency | ||
| ) { | ||
| showError(`Unexpected error: | ||
| ${!address ? 'Address missing' : ''} | ||
| ${!baseCurrency ? 'BaseCurrency missing' : ''} | ||
| ${!quoteCurrency ? 'QuoteCurrency missing' : ''} | ||
| `); | ||
| return; | ||
| } | ||
| const currency = baseCurrency.toUpperCase(); | ||
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| // add the btcdirect CSS | ||
| document.head.appendChild( | ||
| Object.assign(document.createElement('link'), { | ||
| href: ( | ||
| mode === 'production' | ||
| ? 'https://cdn.btcdirect.eu/fiat-to-coin/fiat-to-coin.css' | ||
| : 'https://cdn-sandbox.btcdirect.eu/fiat-to-coin/fiat-to-coin.css' | ||
| ), | ||
| rel: 'stylesheet', | ||
| }) | ||
| ); | ||
|
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| // add the btcdirect script | ||
| (function (btc, d, i, r, e, c, t) { | ||
| btc[r] = btc[r] || function () { | ||
| (btc[r].q = btc[r].q || []).push(arguments) | ||
| }; | ||
| c = d.createElement(i); | ||
| c.id = r; c.src = e; c.async = true; | ||
| c.type = 'module'; c.dataset.btcdirect = ''; | ||
| t = d.getElementsByTagName(i)[0]; | ||
| t.parentNode.insertBefore(c, t); | ||
| })(window, document, 'script', 'btcdirect', | ||
| mode === 'production' | ||
| ? 'https://cdn.btcdirect.eu/fiat-to-coin/fiat-to-coin.js' | ||
| : 'https://cdn-sandbox.btcdirect.eu/fiat-to-coin/fiat-to-coin.js' | ||
| ); | ||
|
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| btcdirect('init', { | ||
| token: apiKey, | ||
| debug: mode === 'debug', | ||
| locale: window.frameElement?.dataset.locale || 'en-GB', | ||
| theme: window.frameElement?.dataset.theme || 'light', | ||
| }); | ||
|
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| // fiat to coin order | ||
| btcdirect('wallet-addresses', { | ||
| addresses: { | ||
| address, | ||
| currency, | ||
| id: 'BitBox', | ||
| walletName: 'BitBox' | ||
| } | ||
| }); | ||
|
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| btcdirect('set-parameters', | ||
| mode === 'production' ? { | ||
| baseCurrency: currency, | ||
| fixedCurrency: true, | ||
| quoteCurrency, | ||
| // paymentMethod: any of 'bancontact', 'bankTransfer', 'creditCard', 'giropay', 'iDeal', 'sofort', 'applepay' | ||
| showWalletAddress: false, | ||
| } : { | ||
| baseCurrency: currency, | ||
| fixedCurrency: true, | ||
| paymentMethod: 'sofort', // sandbox currently only supports sofort payment method | ||
| quoteCurrency, | ||
| showWalletAddress: false, | ||
| } | ||
| ); | ||
|
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| window.addEventListener('btcdirect-embeddable-fiat-to-coin-order-confirmed', (event) => { | ||
| console.log('btcdirect-embeddable-fiat-to-coin-order-confirmed', event); | ||
| // Handle the event | ||
|
There was a problem hiding this comment. Here you could directly post a message to pass the order confirmation, maybe? And leave the TODO in the handler inside btcdirect.tsx. No strong opinion, tho There was a problem hiding this comment. I only tested once, this event is fired after the user clicked proceed to payment and not really useful this way, I'll just remove. There was a problem hiding this comment. removed in #3152 |
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| // Note that the sent information from the widget is found inside event.detail | ||
| }); | ||
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| break; | ||
| } | ||
| }; | ||
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| window.addEventListener('message', onMessage); | ||
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| // Request the parent to send attributes | ||
| window.parent.postMessage({ | ||
| action: 'request-configuration' | ||
| }, '*'); | ||
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| function showError(message) { | ||
| document.body.append( | ||
| Object.assign(document.createElement('h1'), { | ||
| style: 'color: red; padding: 1rem;', | ||
| textContent: message, | ||
| }) | ||
| ); | ||
| } | ||
|
|
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| })(); | ||
| </script> | ||
|
There was a problem hiding this comment. this is the file we host on but in order for it to communicate with the react app we need the changes in this PR in btcdirect.tsx |
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TODO: take locale and theme from onMessage "configuration" / event.data
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rebased this branch without the backend commit and fixed "locale" and "theme" in #3152