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Merge pull request #18091 from Snuffleupagus/rm-_fetchDocument

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Inline the `_fetchDocument` helper function in `getDocument`
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Tim van der Meij 2024-05-14 18:27:04 +02:00 • committed by GitHub
commit 7e5e06b886
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1 changed files with 71 additions and 94 deletions
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165
src/display/api.js
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@ -357,7 +357,7 @@ function getDocument(src) {
task._worker = worker;
}
const fetchDocParams = {
const docParams = {
docId,
apiVersion:
typeof PDFJSDev !== "undefined" && !PDFJSDev.test("TESTING")
@ -398,107 +398,84 @@ function getDocument(src) {
if (task.destroyed) {
throw new Error("Loading aborted");
}
if (worker.destroyed) {
throw new Error("Worker was destroyed");
}
const workerIdPromise = _fetchDocument(worker, fetchDocParams);
const networkStreamPromise = new Promise(function (resolve) {
let networkStream;
if (rangeTransport) {
networkStream = new PDFDataTransportStream(rangeTransport, {
disableRange,
disableStream,
});
} else if (!data) {
if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
throw new Error("Not implemented: createPDFNetworkStream");
}
const createPDFNetworkStream = params => {
if (
typeof PDFJSDev !== "undefined" &&
PDFJSDev.test("GENERIC") &&
isNodeJS
) {
const isFetchSupported = function () {
return (
typeof fetch !== "undefined" &&
typeof Response !== "undefined" &&
"body" in Response.prototype
);
};
return isFetchSupported() && isValidFetchUrl(params.url)
? new PDFFetchStream(params)
: new PDFNodeStream(params);
}
return isValidFetchUrl(params.url)
? new PDFFetchStream(params)
: new PDFNetworkStream(params);
};
networkStream = createPDFNetworkStream({
url,
length,
httpHeaders,
withCredentials,
rangeChunkSize,
disableRange,
disableStream,
});
}
resolve(networkStream);
});
return Promise.all([workerIdPromise, networkStreamPromise]).then(
function ([workerId, networkStream]) {
if (task.destroyed) {
throw new Error("Loading aborted");
}
const messageHandler = new MessageHandler(
docId,
workerId,
worker.port
);
const transport = new WorkerTransport(
messageHandler,
task,
networkStream,
transportParams,
transportFactory
);
task._transport = transport;
messageHandler.send("Ready", null);
}
const workerIdPromise = worker.messageHandler.sendWithPromise(
"GetDocRequest",
docParams,
data ? [data.buffer] : null
);
let networkStream;
if (rangeTransport) {
networkStream = new PDFDataTransportStream(rangeTransport, {
disableRange,
disableStream,
});
} else if (!data) {
if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
throw new Error("Not implemented: createPDFNetworkStream");
}
const createPDFNetworkStream = params => {
if (
typeof PDFJSDev !== "undefined" &&
PDFJSDev.test("GENERIC") &&
isNodeJS
) {
const isFetchSupported = function () {
return (
typeof fetch !== "undefined" &&
typeof Response !== "undefined" &&
"body" in Response.prototype
);
};
return isFetchSupported() && isValidFetchUrl(params.url)
? new PDFFetchStream(params)
: new PDFNodeStream(params);
}
return isValidFetchUrl(params.url)
? new PDFFetchStream(params)
: new PDFNetworkStream(params);
};
networkStream = createPDFNetworkStream({
url,
length,
httpHeaders,
withCredentials,
rangeChunkSize,
disableRange,
disableStream,
});
}
return workerIdPromise.then(workerId => {
if (task.destroyed) {
throw new Error("Loading aborted");
}
if (worker.destroyed) {
throw new Error("Worker was destroyed");
}
const messageHandler = new MessageHandler(docId, workerId, worker.port);
const transport = new WorkerTransport(
messageHandler,
task,
networkStream,
transportParams,
transportFactory
);
task._transport = transport;
messageHandler.send("Ready", null);
});
})
.catch(task._capability.reject);
return task;
}
/**
* Starts fetching of specified PDF document/data.
*
* @param {PDFWorker} worker
* @param {Object} source
* @returns {Promise<string>} A promise that is resolved when the worker ID of
* the `MessageHandler` is known.
* @private
*/
async function _fetchDocument(worker, source) {
if (worker.destroyed) {
throw new Error("Worker was destroyed");
}
const workerId = await worker.messageHandler.sendWithPromise(
"GetDocRequest",
source,
source.data ? [source.data.buffer] : null
);
if (worker.destroyed) {
throw new Error("Worker was destroyed");
}
return workerId;
}
function getUrlProp(val) {
if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
return null; // The 'url' is unused with `PDFDataRangeTransport`.