未定义的文档'画布/不和谐
我正在尝试将动画横幅放到Discord Server上,但是我有一些问题。我不知道为什么未定义文档。我尝试了很多方法,但它们都没有起作用。
try {
let guild = await client.guilds.cache.get(guildId.id);
const voiceChannels = guild.channels.cache.filter((c) => c.type === "GUILD_VOICE");
let count = 0;
for (const [, voiceChannel] of voiceChannels) count += voiceChannel.members.size;
var canvas = createCanvas(420, 236);
var ctx = canvas.getContext('2d');
ctx.textAlign = "center"
ctx.font = "20px Kanit Black"
ctx.fillStyle = '000001'
const encoder = new GIFEncoder(420, 236, {emptyColor: true, dynamicColors: true})
encoder.setRepeat(0);
encoder.setQuality(10)
await gifFrames({ url: `${__dirname}/banner-beta.gif`, frames: 'all', outputType: 'canvas', cumulative: false}).then((frameData) => {
for(let i = 0; i < frameData.length; i++) {
encoder.setDelay(frameData[i].frameInfo.delay * 15);
console.log(frameData[0])
console.log(frameData[i])
ctx.drawImage((frameData[i]).getImage(), 0, 0, 420, 236)
ctx.fillText(`${count}`, 50, 90)
console.log(ctx)
encoder.addFrame(ctx);
}
encoder.finish();
console.log(encoder.out.getData())
var attachment = new MessageAttachment(encoder.out.getData(), 'banner.gif');
guild.channels.cache.get("909860310171648050").send({ files: [attachment] }).catch(console.log);
})
//guild.setBanner(canvas.toBuffer()).catch(console.error);
} catch (e) {
console.log(e)
}
错误:
ReferenceError: document is not defined
at savePixels (C:\Users\hotab\Desktop\Root\node_modules\save-pixels-jpeg-js-upgrade\save-pixels.js:127:20)
at Object.getImage (C:\Users\hotab\Desktop\Root\node_modules\gif-frames\gif-frames.js:105:20)
at C:\Users\hotab\Desktop\Root\utils\banner.js:31:34
I'm trying make a animated banner to discord server, but I have some problems with that. I don't know why document is not defined. I tried a bunch of ways, but none of them worked.
try {
let guild = await client.guilds.cache.get(guildId.id);
const voiceChannels = guild.channels.cache.filter((c) => c.type === "GUILD_VOICE");
let count = 0;
for (const [, voiceChannel] of voiceChannels) count += voiceChannel.members.size;
var canvas = createCanvas(420, 236);
var ctx = canvas.getContext('2d');
ctx.textAlign = "center"
ctx.font = "20px Kanit Black"
ctx.fillStyle = '000001'
const encoder = new GIFEncoder(420, 236, {emptyColor: true, dynamicColors: true})
encoder.setRepeat(0);
encoder.setQuality(10)
await gifFrames({ url: `${__dirname}/banner-beta.gif`, frames: 'all', outputType: 'canvas', cumulative: false}).then((frameData) => {
for(let i = 0; i < frameData.length; i++) {
encoder.setDelay(frameData[i].frameInfo.delay * 15);
console.log(frameData[0])
console.log(frameData[i])
ctx.drawImage((frameData[i]).getImage(), 0, 0, 420, 236)
ctx.fillText(`${count}`, 50, 90)
console.log(ctx)
encoder.addFrame(ctx);
}
encoder.finish();
console.log(encoder.out.getData())
var attachment = new MessageAttachment(encoder.out.getData(), 'banner.gif');
guild.channels.cache.get("909860310171648050").send({ files: [attachment] }).catch(console.log);
})
//guild.setBanner(canvas.toBuffer()).catch(console.error);
} catch (e) {
console.log(e)
}
error:
ReferenceError: document is not defined
at savePixels (C:\Users\hotab\Desktop\Root\node_modules\save-pixels-jpeg-js-upgrade\save-pixels.js:127:20)
at Object.getImage (C:\Users\hotab\Desktop\Root\node_modules\gif-frames\gif-frames.js:105:20)
at C:\Users\hotab\Desktop\Root\utils\banner.js:31:34
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tl; dr:
您的代码在nodejs中运行,其中没有
文档
对象,因为它在后端服务器上没有意义。因此,使用文档
会导致异常。您正在使用节点模块
gif-frames
的更多详细信息,该取决于另一个节点模块,称为
save-pixels-jpeg-js-upgrade
,它试图访问>文档
仅存在于浏览器上下文中的对象(请参阅代码在这里)。gif-frames
的文档表明它可以在节点和浏览器上下文中运行是不正确的,或者对某些API有一些限制,您在这里遇到的API。基于节点模块代码,它似乎仅限于Canvas Case,但我无法进一步帮助您...TL;DR:
Your code runs in NodeJS, in which there is no
document
object because it does not make sense on a backend server. So usingdocument
results in an exception.More details
You are using the node module
gif-frames
that depends on another node module calledsave-pixels-jpeg-js-upgrade
which tries to access thedocument
object that only exists in a browser context (see code here).Either the documentation of
gif-frames
stating that it can run in both Node and browsers contexts is incorrect or there are some restrictions to some APIs, which you are facing here. Based on the node module code, it seems to be limited to the CANVAS case, but I can't help you any further...