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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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18
src/display/api.js
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@ -187,6 +187,14 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
getPage: function PDFDocumentProxy_getPage(number) {
return this.transport.getPage(number);
},
/**
* @param {object} Must have 'num' and 'gen' properties.
* @return {Promise} A promise that is resolved with the page index that is
* associated with the reference.
*/
getPageIndex: function PDFDocumentProxy_getPageIndex(ref) {
return this.transport.getPageIndex(ref);
},
/**
* @return {Promise} A promise that is resolved with a lookup table for
* mapping named destinations to reference numbers.
@ -861,6 +869,16 @@ var WorkerTransport = (function WorkerTransportClosure() {
return promise;
},
getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {
var promise = new PDFJS.Promise();
this.messageHandler.send('GetPageIndex', { ref: ref },
function (pageIndex) {
promise.resolve(pageIndex);
}
);
return promise;
},
getAnnotations: function WorkerTransport_getAnnotations(pageIndex) {
this.messageHandler.send('GetAnnotationsRequest',
{ pageIndex: pageIndex });