matrix-stickers/web/widget-api.js
2020-09-05 17:19:25 +03:00

61 lines
1.4 KiB
JavaScript

// Copyright (c) 2020 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
let widgetId = null
window.onmessage = event => {
if (!window.parent || !event.data) {
return
}
const request = event.data
if (!request.requestId || !request.widgetId || !request.action || request.api !== "toWidget") {
return
}
if (widgetId) {
if (widgetId !== request.widgetId) {
return
}
} else {
widgetId = request.widgetId
}
window.parent.postMessage({
...request,
response: request.action === "capabilities" ? {
capabilities: ["m.sticker"],
} : {
error: { message: "Action not supported" },
},
}, event.origin)
}
export function sendSticker(content) {
const data = {
content,
// `name` is for Element Web (and also the spec)
// Element Android uses content -> body as the name
name: content.body,
}
// This is for Element iOS
const widgetData = {
...data,
description: content.body,
file: `${content["net.maunium.telegram.sticker"].id}.png`,
}
// Element iOS explodes if there are extra fields present
delete widgetData.content["net.maunium.telegram.sticker"]
window.parent.postMessage({
api: "fromWidget",
action: "m.sticker",
requestId: `sticker-${Date.now()}`,
widgetId,
data,
widgetData,
}, "*")
}