ZenBrowserMirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/zen-browser/pdf.js.git synced 2025-07-10 02:05:37 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Moves pdfDocument.getPage/getTextContent requests out of PDFView

Browse source
This commit is contained in:
Yury Delendik 2014-09-15 09:49:24 -05:00
parent 7af8748151
commit 7642c39734
5 changed files with 204 additions and 134 deletions
Download patch file Download diff file Expand all files Collapse all files

98
web/viewer.js
View file

@ -52,12 +52,6 @@ var RenderingStates = {
PAUSED: 2,
FINISHED: 3
};
var FindStates = {
FIND_FOUND: 0,
FIND_NOTFOUND: 1,
FIND_WRAPPED: 2,
FIND_PENDING: 3
};
PDFJS.imageResourcesPath = './images/';
//#if (FIREFOX || MOZCENTRAL || B2G || GENERIC || CHROME)
@ -141,7 +135,7 @@ var PDFView = {
Preferences.initialize();
this.findController = new PDFFindController({
pdfPageSource: this,
pdfViewer: this.pdfViewer,
integratedFind: this.supportsIntegratedFind
});
@ -263,10 +257,6 @@ var PDFView = {
});
},
getPage: function pdfViewGetPage(n) {
return this.pdfDocument.getPage(n);
},
getPageView: function pdfViewGetPageView(index) {
return this.pdfViewer.pages[index];
},
@ -491,8 +481,8 @@ var PDFView = {
this.pdfDocument.destroy();
this.pdfDocument = null;
this.pdfThumbnailViewer.removeAllThumbnails();
this.pdfViewer.removeAllPages();
this.pdfThumbnailViewer.setDocument(null);
this.pdfViewer.setDocument(null);
if (typeof PDFBug !== 'undefined') {
PDFBug.cleanup();
@ -845,21 +835,6 @@ var PDFView = {
load: function pdfViewLoad(pdfDocument, scale) {
var self = this;
var isOnePageRenderedResolved = false;
var resolveOnePageRendered = null;
var onePageRendered = new Promise(function (resolve) {
resolveOnePageRendered = resolve;
});
function bindOnAfterDraw(pageView, thumbnailView) {
// when page is painted, using the image as thumbnail base
pageView.onAfterDraw = function pdfViewLoadOnAfterDraw() {
if (!isOnePageRenderedResolved) {
isOnePageRenderedResolved = true;
resolveOnePageRendered();
}
thumbnailView.setImage(pageView.canvas);
};
}
PDFView.findController.reset();
@ -884,57 +859,19 @@ var PDFView = {
PDFView.documentFingerprint = id;
var store = PDFView.store = new ViewHistory(id);
var pdfViewer = this.pdfViewer;
pdfViewer.currentScale = scale;
pdfViewer.setDocument(pdfDocument);
var firstPagePromise = pdfViewer.firstPagePromise;
var pagesPromise = pdfViewer.pagesPromise;
var onePageRendered = pdfViewer.onePageRendered;
this.pageRotation = 0;
this.pagesRefMap = pdfViewer.pagesRefMap;
var pagesRefMap = this.pagesRefMap = {};
this.pdfThumbnailViewer.setDocument(pdfDocument);
var resolvePagesPromise;
var pagesPromise = new Promise(function (resolve) {
resolvePagesPromise = resolve;
});
this.pagesPromise = pagesPromise;
var firstPagePromise = pdfDocument.getPage(1);
var pagesViewer = this.pdfViewer;
var thumbsViewer = this.pdfThumbnailViewer;
// Fetch a single page so we can get a viewport that will be the default
// viewport for all pages
firstPagePromise.then(function(pdfPage) {
var viewport = pdfPage.getViewport((scale || 1.0) * CSS_UNITS);
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
var viewportClone = viewport.clone();
var pageView = pagesViewer.addPage(pageNum, scale, viewportClone);
var thumbnailView = thumbsViewer.addThumbnail(pageNum, viewportClone);
bindOnAfterDraw(pageView, thumbnailView);
}
// Fetch all the pages since the viewport is needed before printing
// starts to create the correct size canvas. Wait until one page is
// rendered so we don't tie up too many resources early on.
onePageRendered.then(function () {
if (!PDFJS.disableAutoFetch) {
var getPagesLeft = pagesCount;
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
pdfDocument.getPage(pageNum).then(function (pageNum, pdfPage) {
var pageView = PDFView.getPageView(pageNum - 1);
if (!pageView.pdfPage) {
pageView.setPdfPage(pdfPage);
}
var refStr = pdfPage.ref.num + ' ' + pdfPage.ref.gen + ' R';
pagesRefMap[refStr] = pageNum;
getPagesLeft--;
if (!getPagesLeft) {
resolvePagesPromise();
}
}.bind(null, pageNum));
}
} else {
// XXX: Printing is semi-broken with auto fetch disabled.
resolvePagesPromise();
}
});
downloadedPromise.then(function () {
var event = document.createEvent('CustomEvent');
event.initCustomEvent('documentload', true, true, {});
@ -1118,10 +1055,6 @@ var PDFView = {
},
setInitialView: function pdfViewSetInitialView(storedHash, scale) {
// Reset the current scale, as otherwise the page's scale might not get
// updated if the zoom level stayed the same.
this.pdfViewer.resetView();
// When opening a new file (when one is already loaded in the viewer):
// Reset 'currentPageNumber', since otherwise the page's scale will be wrong
// if 'currentPageNumber' is larger than the number of pages in the file.
@ -1814,6 +1747,13 @@ function webViewerInitialized() {
document.addEventListener('DOMContentLoaded', webViewerLoad, true);
document.addEventListener('pagerendered', function (e) {
var pageIndex = e.detail.pageNumber - 1;
var pageView = PDFView.pdfViewer.getPageView(pageIndex);
var thumbnailView = PDFView.pdfThumbnailViewer.getThumbnail(pageIndex);
thumbnailView.setImage(pageView.canvas);
}, true);
function updateViewarea() {
if (!PDFView.initialized) {
return;