mirror of
https://github.com/zen-browser/pdf.js.git
synced 2025-07-08 01:10:08 +02:00
[api-minor] Add "contentLength" to the information returned by the getMetadata
method
Given that we already include the "Content-Disposition"-header filename, when it exists, it shouldn't hurt to also include the information from the "Content-Length"-header. For PDF documents opened via a URL, which should be a very common way for the PDF.js library to be used, this will[1] thus provide a way of getting the PDF filesize without having to wait for the `getDownloadInfo`-promise to resolve[2]. With these API improvements, we can also simplify the filesize handling in the `PDFDocumentProperties` class. --- [1] Assuming that the server is correctly configured, of course. [2] Since that's not *guaranteed* to happen in general, with e.g. `disableAutoFetch = true` set.
This commit is contained in:
parent
c88e805870
commit
01d12b465c
4 changed files with 49 additions and 51 deletions
|
@ -128,23 +128,25 @@ class PDFDocumentProperties {
|
|||
// Get the document properties.
|
||||
this.pdfDocument
|
||||
.getMetadata()
|
||||
.then(({ info, metadata, contentDispositionFilename }) => {
|
||||
return Promise.all([
|
||||
info,
|
||||
metadata,
|
||||
contentDispositionFilename || getPDFFileNameFromURL(this.url),
|
||||
this._parseFileSize(this.maybeFileSize),
|
||||
this._parseDate(info.CreationDate),
|
||||
this._parseDate(info.ModDate),
|
||||
this.pdfDocument.getPage(currentPageNumber).then(pdfPage => {
|
||||
return this._parsePageSize(
|
||||
getPageSizeInches(pdfPage),
|
||||
pagesRotation
|
||||
);
|
||||
}),
|
||||
this._parseLinearization(info.IsLinearized),
|
||||
]);
|
||||
})
|
||||
.then(
|
||||
({ info, metadata, contentDispositionFilename, contentLength }) => {
|
||||
return Promise.all([
|
||||
info,
|
||||
metadata,
|
||||
contentDispositionFilename || getPDFFileNameFromURL(this.url),
|
||||
this._parseFileSize(contentLength),
|
||||
this._parseDate(info.CreationDate),
|
||||
this._parseDate(info.ModDate),
|
||||
this.pdfDocument.getPage(currentPageNumber).then(pdfPage => {
|
||||
return this._parsePageSize(
|
||||
getPageSizeInches(pdfPage),
|
||||
pagesRotation
|
||||
);
|
||||
}),
|
||||
this._parseLinearization(info.IsLinearized),
|
||||
]);
|
||||
}
|
||||
)
|
||||
.then(
|
||||
([
|
||||
info,
|
||||
|
@ -176,15 +178,13 @@ class PDFDocumentProperties {
|
|||
});
|
||||
this._updateUI();
|
||||
|
||||
// Get the correct fileSize, since it may not have been set (if
|
||||
// `this.setFileSize` wasn't called) or may be incorrectly set.
|
||||
return this.pdfDocument.getDownloadInfo();
|
||||
// Get the correct fileSize, since it may not have been available
|
||||
// or could potentially be wrong.
|
||||
return this.pdfDocument.getDownloadInfo().then(downloadInfo => {
|
||||
return this._parseFileSize(downloadInfo.length);
|
||||
});
|
||||
}
|
||||
)
|
||||
.then(({ length }) => {
|
||||
this.maybeFileSize = length;
|
||||
return this._parseFileSize(length);
|
||||
})
|
||||
.then(fileSize => {
|
||||
if (fileSize === this.fieldData.fileSize) {
|
||||
return; // The fileSize has already been correctly set.
|
||||
|
@ -228,19 +228,6 @@ class PDFDocumentProperties {
|
|||
this._dataAvailableCapability.resolve();
|
||||
}
|
||||
|
||||
/**
|
||||
* Set the file size of the PDF document. This method is used to
|
||||
* update the file size in the document properties overlay once it
|
||||
* is known so we do not have to wait until the entire file is loaded.
|
||||
*
|
||||
* @param {number} fileSize - The file size of the PDF document.
|
||||
*/
|
||||
setFileSize(fileSize) {
|
||||
if (Number.isInteger(fileSize) && fileSize > 0) {
|
||||
this.maybeFileSize = fileSize;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
|
@ -248,7 +235,6 @@ class PDFDocumentProperties {
|
|||
this.pdfDocument = null;
|
||||
this.url = null;
|
||||
|
||||
this.maybeFileSize = 0;
|
||||
delete this.fieldData;
|
||||
this._dataAvailableCapability = createPromiseCapability();
|
||||
this._currentPageNumber = 1;
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue