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Don't traverse all pages to get a single page.

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This commit is contained in:
Brendan Dahl 2013-11-13 15:27:46 -08:00
parent 516d2e79be
commit c2d65fc4ab
8 changed files with 183 additions and 84 deletions
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32
web/viewer.js
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@ -623,9 +623,9 @@ var PDFView = {
// Update the browsing history.
PDFHistory.push({ dest: dest, hash: destString, page: pageNumber });
} else {
self.pendingRefStrLoaded = new PDFJS.Promise();
self.pendingRefStr = destRef.num + ' ' + destRef.gen + ' R';
self.pendingRefStrLoaded.then(function() {
self.pdfDocument.getPageIndex(destRef).then(function (pageIndex) {
var pageNum = pageIndex + 1;
self.pagesRefMap[destRef.num + ' ' + destRef.gen + ' R'] = pageNum;
goToDestination(destRef);
});
}
@ -849,32 +849,6 @@ var PDFView = {
PDFView.loadingBar.setWidth(container);
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
var pagePromise = pdfDocument.getPage(pageNum);
pagePromise.then(function(pdfPage) {
var pageNum = pdfPage.pageNumber;
var pageView = pages[pageNum - 1];
if (!pageView.pdfPage) {
// The pdfPage might already be set if we've already entered
// pageView.draw()
pageView.setPdfPage(pdfPage);
}
var thumbnailView = thumbnails[pageNum - 1];
if (!thumbnailView.pdfPage) {
thumbnailView.setPdfPage(pdfPage);
}
var pageRef = pdfPage.ref;
var refStr = pageRef.num + ' ' + pageRef.gen + ' R';
pagesRefMap[refStr] = pdfPage.pageNumber;
if (self.pendingRefStr && self.pendingRefStr === refStr) {
self.pendingRefStrLoaded.resolve();
}
});
pagePromises.push(pagePromise);
}
PDFFindController.firstPagePromise.resolve();
PDFJS.Promise.all(pagePromises).then(function(pages) {