forked from 0x2620/pandora
update pdf.js to improve range request support in chrome
This commit is contained in:
j
parent
e3f43007a4
commit
3e99e43015
2 changed files with 345 additions and 341 deletions
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@ -16,8 +16,8 @@
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*/
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var PDFJS = {};
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PDFJS.version = '0.7.290';
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PDFJS.build = '009bc18';
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PDFJS.version = '0.7.315';
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PDFJS.build = '547a8d6';
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(function pdfjsWrapper() {
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// Use strict in our context only - users might not want it
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@ -46,6 +46,7 @@ PDFJS.build = '009bc18';
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var NetworkManager = (function NetworkManagerClosure() {
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function NetworkManager(url, args) {
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args = args || {};
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this.url = url;
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this.httpHeaders = args.httpHeaders;
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this.getXhr = args.getXhr ||
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@ -54,8 +55,8 @@ var NetworkManager = (function NetworkManagerClosure() {
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};
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this.currXhrId = 0;
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this.xhrRequests = {};
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this.loadedXhrs = {};
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this.pendingRequests = {};
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this.loadedRequests = {};
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}
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function getArrayBuffer(xhr) {
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@ -78,9 +79,8 @@ var NetworkManager = (function NetworkManagerClosure() {
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// e.g. If we already have chunk 3, and we need chunks [2, 5), do not
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// fetch 2; instead fetch [2, 3) and [4, 5); Realistically though, this
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// should not happen often w/ PDFs
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// TODO(mack): this optimization might do more harm than good; investigate
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requestRange: function NetworkManager_requestRange(begin, end, callback) {
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this.request({
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return this.request({
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begin: begin,
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end: end,
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onDone: callback
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@ -88,13 +88,13 @@ var NetworkManager = (function NetworkManagerClosure() {
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},
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requestFull: function NetworkManager_requestRange(args) {
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this.request(args);
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return this.request(args);
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},
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request: function NetworkManager_requestRange(args) {
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var xhr = this.getXhr();
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var xhrId = this.currXhrId++;
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this.xhrRequests[xhrId] = xhr;
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this.pendingRequests[xhrId] = xhr;
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xhr.open('GET', this.url);
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if (this.httpHeaders) {
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@ -131,35 +131,33 @@ var NetworkManager = (function NetworkManagerClosure() {
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xhr.onDone = args.onDone;
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xhr.send(null);
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return xhrId;
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},
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onStateChange: function NetworkManager_onStateChange(xhrId, evt) {
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// xhr seems to queue requests for different readyState,
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// so that we come here multiple times; the problem is when we pause
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// via debugger, then, xhr.readyState will be 4 multiple times. This
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// is a fix for this issue.
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if (xhrId in this.loadedXhrs) {
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return;
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}
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var xhr = this.xhrRequests[xhrId];
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var xhr = this.pendingRequests[xhrId];
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if (!xhr) {
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// Maybe abortRequest was called...
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return;
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}
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if (xhr.readyState >= 2 && xhr.onHeadersReceived) {
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xhr.onHeadersReceived({
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xhrId: xhrId
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});
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xhr.onHeadersReceived();
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delete xhr.onHeadersReceived;
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return;
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} else if (xhr.readyState !== 4) {
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}
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if (xhr.readyState !== 4) {
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return;
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}
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this.loadedXhrs[xhrId] = true;
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delete this.xhrRequests[xhrId];
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if (!(xhrId in this.pendingRequests)) {
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// The XHR request might have been aborted in onHeadersReceived()
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// callback, in which case we should abort request
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return;
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}
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delete this.pendingRequests[xhrId];
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if (xhr.status === 0) {
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//warn('Received xhr.status of 0');
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@ -174,6 +172,8 @@ var NetworkManager = (function NetworkManagerClosure() {
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return;
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}
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this.loadedRequests[xhrId] = true;
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var chunk = getArrayBuffer(xhr);
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if (xhr.expectedStatus === 206) {
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var rangeHeader = xhr.getResponseHeader('Content-Range');
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@ -196,28 +196,36 @@ var NetworkManager = (function NetworkManagerClosure() {
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},
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hasPendingRequests: function NetworkManager_hasPendingRequests() {
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for (var xhrId in this.xhrRequests) {
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for (var xhrId in this.pendingRequests) {
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return true;
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}
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return false;
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},
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getRequestXhr: function NetworkManager_getXhr(xhrId) {
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return this.pendingRequests[xhrId];
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},
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isPendingRequest: function NetworkManager_isPendingRequest(xhrId) {
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return xhrId in this.xhrRequests;
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return xhrId in this.pendingRequests;
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},
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isLoadedRequest: function NetworkManager_isLoadedRequest(xhrId) {
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return xhrId in this.loadedRequests;
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},
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abortXhrs: function NetworkManager_abortXhrs() {
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for (var xhrId in this.xhrRequests) {
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for (var xhrId in this.pendingRequests) {
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xhrId = xhrId | 0;
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var xhr = this.xhrRequests[xhrId];
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delete this.xhrRequests[xhrId];
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var xhr = this.pendingRequests[xhrId];
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delete this.pendingRequests[xhrId];
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xhr.abort();
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}
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},
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abortRequest: function NetworkManager_abortRequest(xhrId) {
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var xhr = this.xhrRequests[xhrId];
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delete this.xhrRequests[xhrId];
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var xhr = this.pendingRequests[xhrId];
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delete this.pendingRequests[xhrId];
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xhr.abort();
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}
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};
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@ -241,7 +249,6 @@ if (!globalScope.PDFJS) {
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globalScope.PDFJS = {};
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}
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globalScope.PDFJS.pdfBug = false;
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var Page = (function PageClosure() {
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@ -594,6 +601,10 @@ var PDFDocument = (function PDFDocumentClosure() {
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linearization = false;
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}
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} catch (err) {
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if (err instanceof MissingDataException) {
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throw err;
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}
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warn('The linearization data is not available ' +
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'or unreadable pdf data is found');
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linearization = false;
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@ -672,13 +683,12 @@ var PDFDocument = (function PDFDocumentClosure() {
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}
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// May not be a PDF file, continue anyway.
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},
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setXrefStart: function PDFDocument_setXrefStart() {
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var startXRef = this.startXRef;
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this.xref.startXrefQueue = [startXRef];
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},
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setup: function PDFDocument_setup(recoveryMode) {
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this.checkHeader();
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var startXRef = this.startXRef;
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// FIXME(mack): Clean up how this done
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if (!this.xref.startXrefQueue) {
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this.xref.startXrefQueue = [[startXRef]];
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}
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this.xref.parse(recoveryMode);
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this.catalog = new Catalog(this.xref);
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},
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@ -1109,6 +1119,12 @@ var Util = PDFJS.Util = (function UtilClosure() {
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var PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {
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function PageViewport(viewBox, scale, rotate, offsetX, offsetY) {
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this.viewBox = viewBox;
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this.scale = scale;
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this.rotate = rotate;
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this.offsetX = offsetX;
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this.offsetY = offsetY;
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// creating transform to convert pdf coordinate system to the normal
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// canvas like coordinates taking in account scale and rotation
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var centerX = (viewBox[2] + viewBox[0]) / 2;
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@ -1158,13 +1174,22 @@ var PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {
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offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY
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];
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this.offsetX = offsetX;
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this.offsetY = offsetY;
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this.width = width;
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this.height = height;
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this.fontScale = scale;
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}
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PageViewport.prototype = {
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clone: function PageViewPort_clone(args) {
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args = args || {};
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var scale = 'scale' in args ? args.scale : this.scale;
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var rotate = 'rotate' in args ? args.rotate : this.rotate;
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var viewBoxClone = [];
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for (var i = 0; i < this.viewBox.length; ++i) {
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viewBoxClone[i] = this.viewBox[i];
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}
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return new PageViewport(viewBoxClone, scale, rotate,
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this.offsetX, this.offsetY);
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},
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convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {
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return Util.applyTransform([x, y], this.transform);
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},
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@ -1536,7 +1561,7 @@ PDFJS.createBlob = function createBlob(data, contentType) {
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*
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* @return {Promise} A promise that is resolved with {PDFDocumentProxy} object.
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*/
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PDFJS.getDocument = function getDocument(source) {
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PDFJS.getDocument = function getDocument(source, pdfDataRangeTransport) {
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var workerInitializedPromise, workerReadyPromise, transport;
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if (typeof source === 'string') {
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@ -1564,9 +1589,9 @@ PDFJS.getDocument = function getDocument(source) {
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workerInitializedPromise = new PDFJS.Promise();
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workerReadyPromise = new PDFJS.Promise();
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transport = new WorkerTransport(workerInitializedPromise,
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workerReadyPromise, params);
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workerReadyPromise, pdfDataRangeTransport);
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workerInitializedPromise.then(function transportInitialized() {
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transport.fetchDocument();
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transport.fetchDocument(params);
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});
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return workerReadyPromise;
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};
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@ -1950,8 +1975,8 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
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*/
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var WorkerTransport = (function WorkerTransportClosure() {
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function WorkerTransport(workerInitializedPromise, workerReadyPromise,
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source) {
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this.source = source;
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pdfDataRangeTransport) {
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this.pdfDataRangeTransport = pdfDataRangeTransport;
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this.workerReadyPromise = workerReadyPromise;
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this.commonObjs = new PDFObjects();
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@ -2034,15 +2059,19 @@ var WorkerTransport = (function WorkerTransportClosure() {
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function WorkerTransport_setupMessageHandler(messageHandler) {
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this.messageHandler = messageHandler;
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if (this.source.chunkedChromeLoading) {
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window.addEventListener('message', function window_message(evt) {
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this.messageHandler.send('SendDataRange', evt.data);
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}.bind(this));
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}
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var pdfDataRangeTransport = this.pdfDataRangeTransport;
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if (pdfDataRangeTransport) {
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pdfDataRangeTransport.addListener(function(args) {
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messageHandler.send('OnDataRange', args);
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});
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messageHandler.on('RequestDataRange', function transportDataRange(args) {
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FirefoxCom.request('requestDataRange', args);
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}, this);
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messageHandler.on('RequestDataRange',
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function transportDataRange(data) {
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var begin = data.begin;
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var end = data.end;
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pdfDataRangeTransport.requestDataRange(begin, end);
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}, this);
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}
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messageHandler.on('GetDoc', function transportDoc(data) {
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var pdfInfo = data.pdfInfo;
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@ -2111,11 +2140,10 @@ var WorkerTransport = (function WorkerTransportClosure() {
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// At this point, only the font object is created but the font is
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// not yet attached to the DOM. This is done in `FontLoader.bind`.
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var font;
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if ('error' in exportedData) {
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if ('error' in exportedData)
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font = new ErrorFont(exportedData.error);
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} else {
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else
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font = new Font(exportedData);
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}
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this.commonObjs.resolve(id, font);
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break;
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default:
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@ -2207,8 +2235,12 @@ var WorkerTransport = (function WorkerTransportClosure() {
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});
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},
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fetchDocument: function WorkerTransport_fetchDocument() {
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this.messageHandler.send('GetDocRequest', {source: this.source});
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fetchDocument: function WorkerTransport_fetchDocument(source) {
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extend(source, { chunkedViewerLoading: !!this.pdfDataRangeTransport });
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this.messageHandler.send('GetDocRequest', {
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source: source,
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rangeSupport: PDFJS.rangeSupport
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});
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},
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getData: function WorkerTransport_getData(promise) {
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@ -4084,7 +4116,6 @@ var XRef = (function XRefClosure() {
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// prepare the XRef cache
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this.cache = [];
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this.password = password;
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this.startXrefQueue = undefined;
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}
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XRef.prototype = {
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@ -4248,11 +4279,6 @@ var XRef = (function XRefClosure() {
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},
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readXRefStream: function XRef_readXRefStream(stream) {
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//var streamParameters = stream.parameters;
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//var byteWidths = streamParameters.get('W');
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//var range = streamParameters.get('Index');
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//if (!range)
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// range = [0, streamParameters.get('Size')];
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var i, j;
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stream.pos = this.streamState.pos;
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@ -4308,7 +4334,6 @@ var XRef = (function XRefClosure() {
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this.streamState.pos = stream.pos;
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this.streamState.range.splice(0, 2);
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}
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//return streamParameters;
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},
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indexObjects: function XRef_indexObjects() {
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// Simple scan through the PDF content to find objects,
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@ -4396,7 +4421,7 @@ var XRef = (function XRefClosure() {
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}
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// reading XRef streams
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for (var i = 0, ii = xrefStms.length; i < ii; ++i) {
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this.startXrefQueue.push([xrefStms[i], true]);
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this.startXrefQueue.push(xrefStms[i]);
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this.readXRef(/* recoveryMode */ true);
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}
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// finding main trailer
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@ -4427,7 +4452,7 @@ var XRef = (function XRefClosure() {
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try {
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while (this.startXrefQueue.length) {
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var startXRef = this.startXrefQueue[0][0];
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var startXRef = this.startXrefQueue[0];
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stream.pos = startXRef;
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@ -4453,7 +4478,7 @@ var XRef = (function XRefClosure() {
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// (possible infinite recursion)
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if (!(pos in this.xrefstms)) {
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this.xrefstms[pos] = 1;
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this.startXrefQueue.push([pos]);
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this.startXrefQueue.push(pos);
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}
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}
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} else if (isInt(obj)) {
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@ -4477,11 +4502,11 @@ var XRef = (function XRefClosure() {
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// Recursively get previous dictionary, if any
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obj = dict.get('Prev');
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if (isInt(obj)) {
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this.startXrefQueue.push([obj, recoveryMode]);
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this.startXrefQueue.push(obj);
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} else if (isRef(obj)) {
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// The spec says Prev must not be a reference, i.e. "/Prev NNN"
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// This is a fallback for non-compliant PDFs, i.e. "/Prev NNN 0 R"
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this.startXrefQueue.push([obj.num, recoveryMode]);
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this.startXrefQueue.push(obj.num);
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}
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this.startXrefQueue.shift();
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@ -4496,9 +4521,8 @@ var XRef = (function XRefClosure() {
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log('(while reading XRef): ' + e);
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}
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if (recoveryMode) {
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if (recoveryMode)
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return;
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}
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throw new XrefParseException();
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},
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@ -30602,13 +30626,7 @@ var Lexer = (function LexerClosure() {
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}
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stream.skip();
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}
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// TODO(mack): gotta test this optimization
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var value;
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if (floating) {
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value = parseFloat(str);
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} else {
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value = str | 0;
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}
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var value = parseFloat(str);
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if (isNaN(value))
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error('Invalid floating point number: ' + value);
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return value;
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@ -30793,7 +30811,6 @@ var Lexer = (function LexerClosure() {
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return Cmd.get(ch);
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// hex string or dict punctuation
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case '<':
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var position = stream.pos;
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ch = stream.lookChar();
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if (ch == '<') {
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// dict punctuation
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@ -31319,7 +31336,6 @@ var Stream = (function StreamClosure() {
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return this.end - this.start;
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},
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getByte: function Stream_getByte() {
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//throw new Error('getByte');
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if (this.pos >= this.end)
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return null;
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return this.bytes[this.pos++];
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@ -31327,7 +31343,6 @@ var Stream = (function StreamClosure() {
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// returns subarray of original buffer
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// should only be read
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getBytes: function Stream_getBytes(length) {
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//throw new Error('getBytes');
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var bytes = this.bytes;
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var pos = this.pos;
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var strEnd = this.end;
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@ -31343,13 +31358,11 @@ var Stream = (function StreamClosure() {
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return bytes.subarray(pos, end);
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},
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lookChar: function Stream_lookChar() {
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//throw new Error('lookChar');
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if (this.pos >= this.end)
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return null;
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return String.fromCharCode(this.bytes[this.pos]);
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},
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getChar: function Stream_getChar() {
|
||||
//throw new Error('getChar');
|
||||
if (this.pos >= this.end)
|
||||
return null;
|
||||
return String.fromCharCode(this.bytes[this.pos++]);
|
||||
|
|
@ -33678,7 +33691,6 @@ var ChunkedStream = (function ChunkedStreamClosure() {
|
|||
},
|
||||
|
||||
allChunksLoaded: function ChunkedStream_allChunksLoaded() {
|
||||
// TODO(mack): might want to use list of unloaded chunks to be safer...
|
||||
return this.numChunksLoaded === this.numChunks;
|
||||
},
|
||||
|
||||
|
|
@ -33773,9 +33785,6 @@ var ChunkedStream = (function ChunkedStreamClosure() {
|
|||
return bytes.subarray(pos, end);
|
||||
},
|
||||
|
||||
// TODO(mack): make getBytes call this
|
||||
// returns subarray of original buffer
|
||||
// should only be read
|
||||
getByteRange: function ChunkedStream_getBytes(begin, end) {
|
||||
this.ensureRange(begin, end);
|
||||
return this.bytes.subarray(begin, end);
|
||||
|
|
@ -33836,23 +33845,10 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
|
|||
this.length = stream.length;
|
||||
this.url = url;
|
||||
|
||||
// Prefill stream with fully loaded chunks
|
||||
if (args.loadedChunk && isInt(args.loadedBegin)) {
|
||||
var loadedBegin = args.loadedBegin;
|
||||
var actualChunk = args.loadedChunk;
|
||||
var actualEnd = loadedBegin + actualChunk.byteLength;
|
||||
var loadedEnd = Math.floor(actualEnd / this.chunkSize) * this.chunkSize;
|
||||
var loadedChunk = actualChunk.subarray(loadedBegin, loadedEnd);
|
||||
this.stream.onReceiveData(loadedBegin, loadedChunk);
|
||||
}
|
||||
|
||||
if (args.fetchByChrome) {
|
||||
args.msgHandler.on('SendDataRange', this.onReceiveData.bind(this));
|
||||
this.sendRequest = function streamManager_sendRequest(begin, end) {
|
||||
args.msgHandler.send(
|
||||
'RequestDataRange',
|
||||
{ begin: begin, end: end }
|
||||
);
|
||||
if (args.chunkedViewerLoading) {
|
||||
args.msgHandler.on('OnDataRange', this.onReceiveData.bind(this));
|
||||
this.sendRequest = function ChunkedStreamManager_sendRequest(begin, end) {
|
||||
args.msgHandler.send('RequestDataRange', { begin: begin, end: end });
|
||||
};
|
||||
} else {
|
||||
|
||||
|
|
@ -33860,7 +33856,7 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
|
|||
return new XMLHttpRequest();
|
||||
};
|
||||
this.networkManager = new NetworkManager(this.url, { getXhr: getXhr });
|
||||
this.sendRequest = function streamManager_sendRequest(begin, end) {
|
||||
this.sendRequest = function ChunkedStreamManager_sendRequest(begin, end) {
|
||||
this.networkManager.requestRange(
|
||||
begin, end, this.onReceiveData.bind(this));
|
||||
};
|
||||
|
|
@ -34180,9 +34176,7 @@ var NetworkPdfManager = (function NetworkPdfManagerClosure() {
|
|||
|
||||
var params = {
|
||||
msgHandler: msgHandler,
|
||||
fetchByChrome: args.chunkedChromeLoading,
|
||||
loadedBegin: args.loadedBegin,
|
||||
loadedChunk: args.loadedChunk
|
||||
chunkedViewerLoading: args.chunkedViewerLoading
|
||||
};
|
||||
this.streamManager = new ChunkedStreamManager(
|
||||
this.stream, this.pdfUrl, params);
|
||||
|
|
@ -34270,14 +34264,6 @@ var NetworkPdfManager = (function NetworkPdfManagerClosure() {
|
|||
|
||||
|
||||
|
||||
var START_TIME = (new Date()).getTime() / 1000;
|
||||
function timeLog() {
|
||||
var elapsedTime = (new Date()).getTime() / 1000 - START_TIME;
|
||||
var args = [].slice.call(arguments);
|
||||
args.unshift(elapsedTime);
|
||||
console.log.apply(console, args);
|
||||
}
|
||||
|
||||
function MessageHandler(name, comObj) {
|
||||
this.name = name;
|
||||
this.comObj = comObj;
|
||||
|
|
@ -34304,16 +34290,13 @@ function MessageHandler(name, comObj) {
|
|||
}];
|
||||
|
||||
comObj.onmessage = function messageHandlerComObjOnMessage(event) {
|
||||
|
||||
var handler;
|
||||
|
||||
var data = event.data;
|
||||
if (data.isReply) {
|
||||
var callbackId = data.callbackId;
|
||||
if (data.callbackId in callbacks) {
|
||||
var callback = callbacks[callbackId];
|
||||
delete callbacks[callbackId];
|
||||
handler = callback.bind(undefined, data.data);
|
||||
callback(data.data);
|
||||
} else {
|
||||
error('Cannot resolve callback ' + callbackId);
|
||||
}
|
||||
|
|
@ -34328,19 +34311,13 @@ function MessageHandler(name, comObj) {
|
|||
data: resolvedData
|
||||
});
|
||||
});
|
||||
handler = action[0].bind(action[1], data.data, promise);
|
||||
action[0].call(action[1], data.data, promise);
|
||||
} else {
|
||||
handler = action[0].bind(action[1], data.data);
|
||||
action[0].call(action[1], data.data);
|
||||
}
|
||||
} else {
|
||||
error('Unkown action from worker: ' + data.action);
|
||||
}
|
||||
|
||||
if (!handler) {
|
||||
return;
|
||||
}
|
||||
|
||||
handler();
|
||||
};
|
||||
}
|
||||
|
||||
|
|
@ -34406,8 +34383,10 @@ var WorkerMessageHandler = {
|
|||
loadDocumentPromise.reject(e);
|
||||
};
|
||||
|
||||
pdfManager.ensureModel('parse', recoveryMode).then(
|
||||
parseSuccess, parseFailure);
|
||||
pdfManager.ensureModel('setXrefStart').then(function() {
|
||||
pdfManager.ensureModel('parse', recoveryMode).then(
|
||||
parseSuccess, parseFailure);
|
||||
});
|
||||
|
||||
return loadDocumentPromise;
|
||||
}
|
||||
|
|
@ -34416,11 +34395,12 @@ var WorkerMessageHandler = {
|
|||
var pdfManagerPromise = new PDFJS.Promise();
|
||||
|
||||
var source = data.source;
|
||||
var rangeSupport = data.rangeSupport;
|
||||
if (source.data) {
|
||||
pdfManager = new LocalPdfManager(source.data, source.password);
|
||||
pdfManagerPromise.resolve();
|
||||
return pdfManagerPromise;
|
||||
} else if (source.chunkedChromeLoading) {
|
||||
} else if (source.chunkedViewerLoading) {
|
||||
pdfManager = new NetworkPdfManager(source, handler);
|
||||
pdfManagerPromise.resolve();
|
||||
return pdfManagerPromise;
|
||||
|
|
@ -34429,30 +34409,33 @@ var WorkerMessageHandler = {
|
|||
var networkManager = new NetworkManager(source.url, {
|
||||
httpHeaders: source.httpHeaders
|
||||
});
|
||||
networkManager.requestFull({
|
||||
onHeadersReceived: function onHeadersReceieved(args) {
|
||||
var fullRequestXhrId = args.xhrId;
|
||||
var fullRequestXhrId = networkManager.requestFull({
|
||||
onHeadersReceived: function onHeadersReceived() {
|
||||
if (rangeSupport === 'disable') {
|
||||
return;
|
||||
}
|
||||
|
||||
// This is done in onHeadersReceived because we want to
|
||||
// guarantee that the full request is sent first in
|
||||
// case that the server will only allow max 1 request
|
||||
// (eg. pay-wall)
|
||||
networkManager.requestRange(0, 1, function getPdfLength(args) {
|
||||
// The full request is already finished, in which case we do not
|
||||
// need to fetch chunks
|
||||
if (!networkManager.isPendingRequest(fullRequestXhrId)) {
|
||||
return;
|
||||
}
|
||||
var fullRequestXhr = networkManager.getRequestXhr(fullRequestXhrId);
|
||||
if (fullRequestXhr.getResponseHeader('Accept-Ranges') !== 'bytes') {
|
||||
return;
|
||||
}
|
||||
|
||||
// TODO(mack): In this case, we should access the data that
|
||||
// is already fetched from the full request so we do not refetch
|
||||
// the same data
|
||||
networkManager.abortRequest(fullRequestXhrId);
|
||||
var contentLength = fullRequestXhr.getResponseHeader(
|
||||
'Content-Length');
|
||||
contentLength = parseInt(contentLength, 10);
|
||||
if (!isInt(contentLength)) {
|
||||
return;
|
||||
}
|
||||
|
||||
source.totalLength = args.totalLength;
|
||||
pdfManager = new NetworkPdfManager(source, handler);
|
||||
pdfManagerPromise.resolve(pdfManager);
|
||||
});
|
||||
// NOTE: by cancelling the full request, and then issuing range
|
||||
// requests, there will be an issue for sites where you can only
|
||||
// request the pdf once. However, if this is the case, then the
|
||||
// server should not be returning that it can support range requests.
|
||||
networkManager.abortRequest(fullRequestXhrId);
|
||||
|
||||
source.totalLength = contentLength;
|
||||
pdfManager = new NetworkPdfManager(source, handler);
|
||||
pdfManagerPromise.resolve(pdfManager);
|
||||
},
|
||||
onDone: function onDone(args) {
|
||||
// the data is array, instantiating directly from it
|
||||
|
|
|
|||
|
|
@ -708,6 +708,10 @@ var PDFView = {
|
|||
}, false);
|
||||
},
|
||||
|
||||
getPage: function pdfViewGetPage(n) {
|
||||
return this.pdfDocument.getPage(n);
|
||||
},
|
||||
|
||||
// Helper function to keep track whether a div was scrolled up or down and
|
||||
// then call a callback.
|
||||
watchScroll: function pdfViewWatchScroll(viewAreaElement, state, callback) {
|
||||
|
|
@ -890,28 +894,43 @@ var PDFView = {
|
|||
PDFView.loadingBar = new ProgressBar('#loadingBar', {});
|
||||
}
|
||||
|
||||
function windowMessage(e) {
|
||||
var PdfDataRangeTransport = {
|
||||
listeners: [],
|
||||
|
||||
addListener: function PdfDataRangeTransport_addListener(listener) {
|
||||
this.listeners.push(listener);
|
||||
},
|
||||
|
||||
onDataRange: function PdfDataRangeTransport_onDataRange(args) {
|
||||
for (var i = 0; i < this.listeners.length; ++i) {
|
||||
this.listeners[i](args);
|
||||
}
|
||||
},
|
||||
|
||||
requestDataRange: function PdfDataRangeTransport_requestDataRange(
|
||||
begin, end) {
|
||||
FirefoxCom.request('requestDataRange', { begin: begin, end: end });
|
||||
}
|
||||
};
|
||||
|
||||
window.addEventListener('message', function windowMessage(e) {
|
||||
var args = e.data;
|
||||
|
||||
if (typeof args !== 'object' || !('pdfjsLoadAction' in args))
|
||||
return;
|
||||
switch (args.pdfjsLoadAction) {
|
||||
case 'supportsChunkedLoading':
|
||||
window.removeEventListener('message', windowMessage);
|
||||
PDFView.open({
|
||||
url: args.pdfUrl,
|
||||
chunkedChromeLoading: true,
|
||||
totalLength: args.totalLength,
|
||||
loadedBegin: args.loadedBegin,
|
||||
loadedChunk: args.loadedChunk
|
||||
}, 0);
|
||||
PDFView.open(args.pdfUrl, 0, undefined, PdfDataRangeTransport, {
|
||||
totalLength: args.totalLength
|
||||
});
|
||||
break;
|
||||
case 'chunk':
|
||||
PdfDataRangeTransport.onDataRange(args);
|
||||
break;
|
||||
case 'progress':
|
||||
PDFView.progress(args.loaded / args.total);
|
||||
break;
|
||||
case 'complete':
|
||||
// TODO(mack): remove the listener when file loading is complete
|
||||
// window.removeEventListener('message', windowMessage);
|
||||
if (!args.data) {
|
||||
PDFView.error(mozL10n.get('loading_error', null,
|
||||
'An error occurred while loading the PDF.'), e);
|
||||
|
|
@ -920,8 +939,7 @@ var PDFView = {
|
|||
PDFView.open(args.data, 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
window.addEventListener('message', windowMessage);
|
||||
});
|
||||
FirefoxCom.requestSync('initPassiveLoading', null);
|
||||
},
|
||||
|
||||
|
|
@ -940,17 +958,21 @@ var PDFView = {
|
|||
document.title = title;
|
||||
},
|
||||
|
||||
open: function pdfViewOpen(url, scale, password) {
|
||||
// TODO(mack): This function signature should really be pdfViewOpen(url, args)
|
||||
open: function pdfViewOpen(url, scale, password,
|
||||
pdfDataRangeTransport, args) {
|
||||
scale = scale || 1;
|
||||
var parameters = {password: password};
|
||||
if (typeof url === 'string') { // URL
|
||||
this.setTitleUsingUrl(url);
|
||||
parameters.url = url;
|
||||
} else if (url && 'byteLength' in url) { // ArrayBuffer
|
||||
parameters.data = url;
|
||||
} else {
|
||||
this.setTitleUsingUrl(url.url);
|
||||
parameters = url;
|
||||
parameters.password = password;
|
||||
}
|
||||
if (args) {
|
||||
for (var prop in args) {
|
||||
parameters[prop] = args[prop];
|
||||
}
|
||||
}
|
||||
|
||||
if (!PDFView.loadingBar) {
|
||||
|
|
@ -960,7 +982,7 @@ var PDFView = {
|
|||
this.pdfDocument = null;
|
||||
var self = this;
|
||||
self.loading = true;
|
||||
PDFJS.getDocument(parameters).then(
|
||||
PDFJS.getDocument(parameters, pdfDataRangeTransport).then(
|
||||
function getDocumentCallback(pdfDocument) {
|
||||
self.load(pdfDocument, scale);
|
||||
self.loading = false;
|
||||
|
|
@ -1192,7 +1214,6 @@ var PDFView = {
|
|||
container.removeChild(container.lastChild);
|
||||
|
||||
var pagesCount = pdfDocument.numPages;
|
||||
|
||||
var id = pdfDocument.fingerprint;
|
||||
document.getElementById('numPages').textContent =
|
||||
mozL10n.get('page_of', {pageCount: pagesCount}, 'of {{pageCount}}');
|
||||
|
|
@ -1209,79 +1230,70 @@ var PDFView = {
|
|||
this.startedTextExtraction = false;
|
||||
var pagesRefMap = this.pagesRefMap = {};
|
||||
var thumbnails = this.thumbnails = [];
|
||||
var pagePromises = [];
|
||||
|
||||
var firstPageLoaded = true;
|
||||
|
||||
var defaultViewportPromise = new PDFJS.Promise();
|
||||
var pagesPromise = new PDFJS.Promise();
|
||||
var self = this;
|
||||
for (var pageIdx = 0; pageIdx < pagesCount; ++pageIdx) {
|
||||
var pageNum = pageIdx + 1;
|
||||
var pagePromise = pdfDocument.getPage(pageNum);
|
||||
pagePromise.then(function(page) {
|
||||
|
||||
if (firstPageLoaded) {
|
||||
var pagesFrag = document.createDocumentFragment();
|
||||
// TODO(mack): clone
|
||||
var defaultView = page.view;
|
||||
for (var pageIdx = 0; pageIdx < pagesCount; ++pageIdx) {
|
||||
var pageNum = pageIdx + 1;
|
||||
var pageView = new PageView(container, pageNum, scale,
|
||||
self.navigateTo.bind(self), defaultView);
|
||||
pages[pageIdx] = pageView;
|
||||
pagesFrag.appendChild(pageView.element);
|
||||
}
|
||||
container.appendChild(pagesFrag);
|
||||
// TODO(mack): Verify is safe to assume at least one page if
|
||||
// we're here.
|
||||
pdfDocument.getPage(1).then(function(pdfPage) {
|
||||
var viewport = pdfPage.getViewport(scale);
|
||||
defaultViewportPromise.resolve(viewport);
|
||||
});
|
||||
|
||||
var storedHash = null;
|
||||
if (store.get('exists', false)) {
|
||||
var page_ = store.get('page', '1');
|
||||
var zoom = store.get('zoom', PDFView.currentScale);
|
||||
var left = store.get('scrollLeft', '0');
|
||||
var top = store.get('scrollTop', '0');
|
||||
|
||||
storedHash =
|
||||
'page=' + page_ + '&zoom=' + zoom + ',' + left +',' + top;
|
||||
}
|
||||
|
||||
self.setInitialView(storedHash, scale);
|
||||
firstPageLoaded = false;
|
||||
}
|
||||
|
||||
var pageIdx = page.pageInfo.pageIndex;
|
||||
var pageNum = pageIdx + 1;
|
||||
|
||||
var pageView = pages[pageIdx];
|
||||
pageView.setPdfPage(page);
|
||||
pageView.setStats(page.stats);
|
||||
var thumbnailView = new ThumbnailView(thumbsView, page, pageNum);
|
||||
defaultViewportPromise.then(function(viewport) {
|
||||
var pagePromises = [];
|
||||
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
|
||||
var viewportClone = viewport.clone();
|
||||
var pageView = new PageView(container, pageNum, scale,
|
||||
self.navigateTo.bind(self),
|
||||
viewportClone);
|
||||
var thumbnailView = new ThumbnailView(thumbsView, pageNum,
|
||||
viewportClone);
|
||||
bindOnAfterDraw(pageView, thumbnailView);
|
||||
pages.push(pageView);
|
||||
thumbnails.push(thumbnailView);
|
||||
|
||||
pages[pageIdx] = pageView;
|
||||
thumbnails[pageIdx] = thumbnailView;
|
||||
var pageRef = page.ref;
|
||||
pagesRefMap[pageRef.num + ' ' + pageRef.gen + ' R'] = pageNum;
|
||||
var pagePromise = pdfDocument.getPage(pageNum);
|
||||
pagePromise.then(function(pdfPage) {
|
||||
pageView.setPdfPage(pdfPage);
|
||||
thumbnailView.setPdfPage(pdfPage);
|
||||
|
||||
var visiblePages = self.visiblePages;
|
||||
var firstNum = visiblePages.first.id;
|
||||
var lastNum = visiblePages.last.id;
|
||||
if (pageNum >= firstNum && pageNum <= lastNum) {
|
||||
// TODO(mack): This logic could probably be better, as it's probably
|
||||
// going in here more often than necessary
|
||||
self.renderHighestPriority();
|
||||
//updateViewarea();
|
||||
}
|
||||
var pageRef = pdfPage.ref;
|
||||
var refStr = pageRef.num + ' ' + pageRef.gen + ' R';
|
||||
pagesRefMap[refStr] = pdfPage.pageNumber;
|
||||
});
|
||||
pagePromises.push(pagePromise);
|
||||
}
|
||||
|
||||
var event = document.createEvent('CustomEvent');
|
||||
event.initCustomEvent('documentload', true, true, {});
|
||||
window.dispatchEvent(event);
|
||||
|
||||
var storedHash = null;
|
||||
if (store.get('exists', false)) {
|
||||
var page_ = store.get('page', '1');
|
||||
var zoom = store.get('zoom', PDFView.currentScale);
|
||||
var left = store.get('scrollLeft', '0');
|
||||
var top = store.get('scrollTop', '0');
|
||||
|
||||
storedHash = 'page=' + page_ + '&zoom=' + zoom + ',' + left +',' + top;
|
||||
}
|
||||
|
||||
self.setInitialView(storedHash, scale);
|
||||
|
||||
PDFJS.Promise.all(pagePromises).then(function(pages) {
|
||||
pagesPromise.resolve(pages);
|
||||
});
|
||||
pagePromises.push(pagePromise);
|
||||
}
|
||||
|
||||
var pagesPromise = PDFJS.Promise.all(pagePromises);
|
||||
});
|
||||
|
||||
var destinationsPromise = pdfDocument.getDestinations();
|
||||
destinationsPromise.then(function(destinations) {
|
||||
self.destinations = destinations;
|
||||
});
|
||||
|
||||
// outline and initial view depends on destinations and pagesRefMap
|
||||
// outline depends on destinations and pagesRefMap
|
||||
var promises = [pagesPromise, destinationsPromise, storePromise,
|
||||
PDFView.animationStartedPromise];
|
||||
PDFJS.Promise.all(promises).then(function() {
|
||||
|
|
@ -1345,8 +1357,8 @@ var PDFView = {
|
|||
|
||||
renderHighestPriority: function pdfViewRenderHighestPriority() {
|
||||
// Pages have a higher priority than thumbnails, so check them first.
|
||||
this.visiblePages = this.getVisiblePages();
|
||||
var pageView = this.getHighestPriority(this.visiblePages, this.pages,
|
||||
var visiblePages = this.getVisiblePages();
|
||||
var pageView = this.getHighestPriority(visiblePages, this.pages,
|
||||
this.pageViewScroll.down);
|
||||
if (pageView) {
|
||||
this.renderView(pageView, 'page');
|
||||
|
|
@ -1379,7 +1391,7 @@ var PDFView = {
|
|||
}
|
||||
for (var i = 0; i < numVisible; ++i) {
|
||||
var view = visibleViews[i].view;
|
||||
if (!this.isViewRenderable(view))
|
||||
if (!this.isViewFinished(view))
|
||||
return view;
|
||||
}
|
||||
|
||||
|
|
@ -1387,22 +1399,19 @@ var PDFView = {
|
|||
if (scrolledDown) {
|
||||
var nextPageIndex = visible.last.id;
|
||||
// ID's start at 1 so no need to add 1.
|
||||
if (views[nextPageIndex] && !this.isViewRenderable(views[nextPageIndex]))
|
||||
if (views[nextPageIndex] && !this.isViewFinished(views[nextPageIndex]))
|
||||
return views[nextPageIndex];
|
||||
} else {
|
||||
var previousPageIndex = visible.first.id - 2;
|
||||
if (views[previousPageIndex] &&
|
||||
!this.isViewRenderable(views[previousPageIndex]))
|
||||
!this.isViewFinished(views[previousPageIndex]))
|
||||
return views[previousPageIndex];
|
||||
}
|
||||
// Everything that needs to be rendered has been.
|
||||
return false;
|
||||
},
|
||||
|
||||
isViewRenderable: function pdfViewNeedsRendering(view) {
|
||||
if (view instanceof PageView && !view.pdfPage) {
|
||||
return false;
|
||||
}
|
||||
isViewFinished: function pdfViewNeedsRendering(view) {
|
||||
return view.renderingState === RenderingStates.FINISHED;
|
||||
},
|
||||
|
||||
|
|
@ -1682,7 +1691,7 @@ var PDFView = {
|
|||
|
||||
for (var i = 0, l = this.thumbnails.length; i < l; i++) {
|
||||
var thumb = this.thumbnails[i];
|
||||
thumb.updateRotation(this.pageRotation);
|
||||
thumb.update(this.pageRotation);
|
||||
}
|
||||
|
||||
var currentPage = this.pages[this.page - 1];
|
||||
|
|
@ -1764,29 +1773,13 @@ var PDFView = {
|
|||
};
|
||||
|
||||
var PageView = function pageView(container, id, scale,
|
||||
navigateTo, defaultView) {
|
||||
navigateTo, defaultViewport) {
|
||||
this.id = id;
|
||||
//this.pdfPage = pdfPage;
|
||||
|
||||
this.rotation = 0;
|
||||
this.scale = scale || 1.0;
|
||||
//this.viewport = this.pdfPage.getViewport(this.scale, this.pdfPage.rotate);
|
||||
this.defaultView = defaultView;
|
||||
|
||||
this.getViewport = function pageViewGetViewport() {
|
||||
var view;
|
||||
var totalRotation;
|
||||
if (this.pdfPage) {
|
||||
totalRotation = (this.rotation + this.pdfPage.rotate) % 360;
|
||||
view = this.pdfPage.view;
|
||||
} else {
|
||||
totalRotation = this.rotation;
|
||||
view = this.defaultView;
|
||||
}
|
||||
return new PDFJS.PageViewport(view, this.scale, totalRotation, 0, 0);
|
||||
};
|
||||
|
||||
this.viewport = this.getViewport();
|
||||
this.viewport = defaultViewport;
|
||||
this.pdfPageRotate = defaultViewport.rotate;
|
||||
|
||||
this.renderingState = RenderingStates.INITIAL;
|
||||
this.resume = null;
|
||||
|
|
@ -1798,38 +1791,27 @@ var PageView = function pageView(container, id, scale,
|
|||
anchor.name = '' + this.id;
|
||||
|
||||
var div = this.el = document.createElement('div');
|
||||
//var div = this.el = element;
|
||||
div.id = 'pageContainer' + this.id;
|
||||
div.className = 'page';
|
||||
div.style.width = Math.floor(this.viewport.width) + 'px';
|
||||
div.style.height = Math.floor(this.viewport.height) + 'px';
|
||||
|
||||
this.container = container;
|
||||
//this.container.appendChild(anchor);
|
||||
//this.container.appendChild(div);
|
||||
|
||||
var docFrag = document.createDocumentFragment();
|
||||
docFrag.appendChild(anchor);
|
||||
docFrag.appendChild(div);
|
||||
|
||||
Object.defineProperty(this, 'element', {
|
||||
get: function PlaceholderPageView_getElement() {
|
||||
return docFrag;
|
||||
},
|
||||
enumerable: true
|
||||
});
|
||||
container.appendChild(anchor);
|
||||
container.appendChild(div);
|
||||
|
||||
this.setPdfPage = function pageViewSetPdfPage(pdfPage) {
|
||||
this.pdfPage = pdfPage;
|
||||
};
|
||||
|
||||
this.setStats = function pageViewSetStats(stats) {
|
||||
this.stats = stats;
|
||||
this.pdfPageRotate = pdfPage.rotate;
|
||||
this.viewport = pdfPage.getViewport(this.scale);
|
||||
this.stats = pdfPage.stats;
|
||||
this.update();
|
||||
};
|
||||
|
||||
this.destroy = function pageViewDestroy() {
|
||||
this.update();
|
||||
this.pdfPage.destroy();
|
||||
if (this.pdfPage) {
|
||||
this.pdfPage.destroy();
|
||||
}
|
||||
};
|
||||
|
||||
this.update = function pageViewUpdate(scale, rotation) {
|
||||
|
|
@ -1841,11 +1823,14 @@ var PageView = function pageView(container, id, scale,
|
|||
}
|
||||
|
||||
this.scale = scale || this.scale;
|
||||
var viewport = this.getViewport();
|
||||
var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
|
||||
this.viewport = this.viewport.clone({
|
||||
scale: this.scale,
|
||||
rotation: totalRotation
|
||||
});
|
||||
|
||||
this.viewport = viewport;
|
||||
div.style.width = Math.floor(viewport.width) + 'px';
|
||||
div.style.height = Math.floor(viewport.height) + 'px';
|
||||
div.style.width = Math.floor(this.viewport.width) + 'px';
|
||||
div.style.height = Math.floor(this.viewport.height) + 'px';
|
||||
|
||||
while (div.hasChildNodes())
|
||||
div.removeChild(div.lastChild);
|
||||
|
|
@ -2047,11 +2032,16 @@ var PageView = function pageView(container, id, scale,
|
|||
};
|
||||
|
||||
this.draw = function pageviewDraw(callback) {
|
||||
if (!this.pdfPage) {
|
||||
console.log('Cannot draw without page');
|
||||
var pdfPage = this.pdfPage;
|
||||
|
||||
if (!pdfPage) {
|
||||
var promise = PDFView.getPage(this.id);
|
||||
promise.then(function(pdfPage) {
|
||||
this.setPdfPage(pdfPage);
|
||||
this.draw(callback);
|
||||
}.bind(this));
|
||||
return;
|
||||
}
|
||||
var pdfPage = this.pdfPage;
|
||||
|
||||
if (this.renderingState !== RenderingStates.INITIAL) {
|
||||
console.error('Must be in new state before drawing');
|
||||
|
|
@ -2110,7 +2100,6 @@ var PageView = function pageView(container, id, scale,
|
|||
ctx.scale(outputScale.sx, outputScale.sy);
|
||||
}
|
||||
|
||||
|
||||
// Rendering area
|
||||
|
||||
var self = this;
|
||||
|
|
@ -2138,6 +2127,15 @@ var PageView = function pageView(container, id, scale,
|
|||
self.onAfterDraw();
|
||||
|
||||
cache.push(self);
|
||||
|
||||
// TODO(mack): Verify this will not happend for thumbnails
|
||||
// TODO(mack): Maybe should be attaching event to canvas
|
||||
var event = document.createEvent('CustomEvent');
|
||||
event.initCustomEvent('pagerender', true, true, {
|
||||
pageNum: pdfPage.pageNumber
|
||||
});
|
||||
div.dispatchEvent(event);
|
||||
|
||||
callback();
|
||||
}
|
||||
|
||||
|
|
@ -2183,13 +2181,14 @@ var PageView = function pageView(container, id, scale,
|
|||
|
||||
setupAnnotations(this.pdfPage, this.viewport);
|
||||
div.setAttribute('data-loaded', true);
|
||||
|
||||
};
|
||||
|
||||
this.beforePrint = function pageViewBeforePrint() {
|
||||
var pdfPage = this.pdfPage;
|
||||
|
||||
if (!pdfPage) {
|
||||
console.log('Pdf page has not been rendered and thus cannot be printed');
|
||||
// TODO(mack): What to do if page is not loaded?
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -2244,7 +2243,7 @@ var PageView = function pageView(container, id, scale,
|
|||
|
||||
this.updateStats = function pageViewUpdateStats() {
|
||||
if (!this.stats) {
|
||||
console.log('No stats available');
|
||||
return;
|
||||
}
|
||||
|
||||
if (PDFJS.pdfBug && Stats.enabled) {
|
||||
|
|
@ -2254,7 +2253,7 @@ var PageView = function pageView(container, id, scale,
|
|||
};
|
||||
};
|
||||
|
||||
var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
||||
var ThumbnailView = function thumbnailView(container, id, defaultViewport) {
|
||||
var anchor = document.createElement('a');
|
||||
anchor.href = PDFView.getAnchorUrl('#page=' + id);
|
||||
anchor.title = mozL10n.get('thumb_page_title', {page: id}, 'Page {{page}}');
|
||||
|
|
@ -2263,18 +2262,20 @@ var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
|||
return false;
|
||||
};
|
||||
|
||||
var rotation = 0;
|
||||
var totalRotation = (rotation + pdfPage.rotate) % 360;
|
||||
var viewport = pdfPage.getViewport(1, totalRotation);
|
||||
var pageWidth = this.width = viewport.width;
|
||||
var pageHeight = this.height = viewport.height;
|
||||
var pageRatio = pageWidth / pageHeight;
|
||||
this.pdfPage = undefined;
|
||||
this.viewport = defaultViewport;
|
||||
this.pdfPageRotate = defaultViewport.rotate;
|
||||
|
||||
this.rotation = 0;
|
||||
this.totalRotation = (this.rotation + this.pdfPageRotate) % 360;
|
||||
this.pageWidth = this.viewport.width;
|
||||
this.pageHeight = this.viewport.height;
|
||||
this.pageRatio = this.pageWidth / this.pageHeight;
|
||||
this.id = id;
|
||||
|
||||
var canvasWidth = 98;
|
||||
var canvasHeight = canvasWidth / this.width * this.height;
|
||||
var scaleX = this.scaleX = (canvasWidth / pageWidth);
|
||||
var scaleY = this.scaleY = (canvasHeight / pageHeight);
|
||||
this.canvasWidth = 98;
|
||||
this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
|
||||
this.scale = (this.canvasWidth / this.pageWidth);
|
||||
|
||||
var div = this.el = document.createElement('div');
|
||||
div.id = 'thumbnailContainer' + id;
|
||||
|
|
@ -2288,8 +2289,8 @@ var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
|||
|
||||
var ring = document.createElement('div');
|
||||
ring.className = 'thumbnailSelectionRing';
|
||||
ring.style.width = canvasWidth + 'px';
|
||||
ring.style.height = canvasHeight + 'px';
|
||||
ring.style.width = this.canvasWidth + 'px';
|
||||
ring.style.height = this.canvasHeight + 'px';
|
||||
|
||||
div.appendChild(ring);
|
||||
anchor.appendChild(div);
|
||||
|
|
@ -2298,36 +2299,46 @@ var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
|||
this.hasImage = false;
|
||||
this.renderingState = RenderingStates.INITIAL;
|
||||
|
||||
this.updateRotation = function(rot) {
|
||||
this.setPdfPage = function thumbnailViewSetPdfPage(pdfPage) {
|
||||
this.pdfPage = pdfPage;
|
||||
this.pdfPageRotate = pdfPage.rotate;
|
||||
this.viewport = pdfPage.getViewport(this.scale);
|
||||
this.update();
|
||||
};
|
||||
|
||||
rotation = rot;
|
||||
totalRotation = (rotation + pdfPage.rotate) % 360;
|
||||
viewport = pdfPage.getViewport(1, totalRotation);
|
||||
pageWidth = this.width = viewport.width;
|
||||
pageHeight = this.height = viewport.height;
|
||||
pageRatio = pageWidth / pageHeight;
|
||||
this.update = function(rot) {
|
||||
if (rot !== undefined) {
|
||||
this.rotation = rot;
|
||||
}
|
||||
this.totalRotation = (this.rotation + this.pdfPageRotate) % 360;
|
||||
this.viewport = this.viewport.clone({
|
||||
scale: 1,
|
||||
rotation: this.totalRotation
|
||||
});
|
||||
this.pageWidth = this.viewport.width;
|
||||
this.pageHeight = this.viewport.height;
|
||||
this.pageRatio = this.pageWidth / this.pageHeight;
|
||||
|
||||
canvasHeight = canvasWidth / this.width * this.height;
|
||||
scaleX = this.scaleX = (canvasWidth / pageWidth);
|
||||
scaleY = this.scaleY = (canvasHeight / pageHeight);
|
||||
this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
|
||||
this.scale = (this.canvasHeight / this.pageHeight);
|
||||
|
||||
div.removeAttribute('data-loaded');
|
||||
ring.textContent = '';
|
||||
ring.style.width = canvasWidth + 'px';
|
||||
ring.style.height = canvasHeight + 'px';
|
||||
ring.style.width = this.canvasWidth + 'px';
|
||||
ring.style.height = this.canvasHeight + 'px';
|
||||
|
||||
this.hasImage = false;
|
||||
this.renderingState = RenderingStates.INITIAL;
|
||||
this.resume = null;
|
||||
};
|
||||
|
||||
function getPageDrawContext() {
|
||||
this.getPageDrawContext = function thumnailViewGetPageDrawContext() {
|
||||
var canvas = document.createElement('canvas');
|
||||
canvas.id = 'thumbnail' + id;
|
||||
canvas.mozOpaque = true;
|
||||
|
||||
canvas.width = canvasWidth;
|
||||
canvas.height = canvasHeight;
|
||||
canvas.width = this.canvasWidth;
|
||||
canvas.height = this.canvasHeight;
|
||||
canvas.className = 'thumbnailImage';
|
||||
canvas.setAttribute('aria-label', mozL10n.get('thumb_page_canvas',
|
||||
{page: id}, 'Thumbnail of Page {{page}}'));
|
||||
|
|
@ -2339,16 +2350,25 @@ var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
|||
var ctx = canvas.getContext('2d');
|
||||
ctx.save();
|
||||
ctx.fillStyle = 'rgb(255, 255, 255)';
|
||||
ctx.fillRect(0, 0, canvasWidth, canvasHeight);
|
||||
ctx.fillRect(0, 0, this.canvasWidth, this.canvasHeight);
|
||||
ctx.restore();
|
||||
return ctx;
|
||||
}
|
||||
},
|
||||
|
||||
this.drawingRequired = function thumbnailViewDrawingRequired() {
|
||||
return !this.hasImage;
|
||||
};
|
||||
|
||||
this.draw = function thumbnailViewDraw(callback) {
|
||||
if (!this.pdfPage) {
|
||||
var promise = PDFView.getPage(this.id);
|
||||
promise.then(function(pdfPage) {
|
||||
this.setPdfPage(pdfPage);
|
||||
this.draw(callback);
|
||||
}.bind(this));
|
||||
return;
|
||||
}
|
||||
|
||||
if (this.renderingState !== RenderingStates.INITIAL) {
|
||||
console.error('Must be in new state before drawing');
|
||||
}
|
||||
|
|
@ -2360,8 +2380,9 @@ var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
|||
}
|
||||
|
||||
var self = this;
|
||||
var ctx = getPageDrawContext();
|
||||
var drawViewport = pdfPage.getViewport(scaleX, totalRotation);
|
||||
var ctx = this.getPageDrawContext();
|
||||
var drawViewport = this.pdfPage.getViewport(this.scale,
|
||||
this.totalRotation);
|
||||
var renderContext = {
|
||||
canvasContext: ctx,
|
||||
viewport: drawViewport,
|
||||
|
|
@ -2377,7 +2398,7 @@ var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
|||
cont();
|
||||
}
|
||||
};
|
||||
pdfPage.render(renderContext).then(
|
||||
this.pdfPage.render(renderContext).then(
|
||||
function pdfPageRenderCallback() {
|
||||
self.renderingState = RenderingStates.FINISHED;
|
||||
callback();
|
||||
|
|
@ -2394,7 +2415,7 @@ var ThumbnailView = function thumbnailView(container, pdfPage, id) {
|
|||
if (this.hasImage || !img)
|
||||
return;
|
||||
this.renderingState = RenderingStates.FINISHED;
|
||||
var ctx = getPageDrawContext();
|
||||
var ctx = this.getPageDrawContext();
|
||||
ctx.drawImage(img, 0, 0, img.width, img.height,
|
||||
0, 0, ctx.canvas.width, ctx.canvas.height);
|
||||
|
||||
|
|
@ -2837,8 +2858,13 @@ document.addEventListener('DOMContentLoaded', function webViewerLoad(evt) {
|
|||
var hash = document.location.hash.substring(1);
|
||||
var hashParams = PDFView.parseQueryString(hash);
|
||||
|
||||
if ('disableWorker' in hashParams)
|
||||
if ('disableWorker' in hashParams) {
|
||||
PDFJS.disableWorker = (hashParams['disableWorker'] === 'true');
|
||||
}
|
||||
|
||||
if ('rangeSupport' in hashParams) {
|
||||
PDFJS.rangeSupport = hashParams['rangeSupport'];
|
||||
}
|
||||
|
||||
var locale = navigator.language;
|
||||
if ('locale' in hashParams)
|
||||
|
|
@ -3157,24 +3183,19 @@ window.addEventListener('pagechange', function pagechange(evt) {
|
|||
var selected = document.querySelector('.thumbnail.selected');
|
||||
if (selected)
|
||||
selected.classList.remove('selected');
|
||||
|
||||
var thumbnail = document.getElementById('thumbnailContainer' + page);
|
||||
// FIXME(mack): remove checking if thumbnail is null hack
|
||||
if (thumbnail) {
|
||||
thumbnail.classList.add('selected');
|
||||
var visibleThumbs = PDFView.getVisibleThumbs();
|
||||
var numVisibleThumbs = visibleThumbs.views.length;
|
||||
// If the thumbnail isn't currently visible scroll it into view.
|
||||
if (numVisibleThumbs > 0) {
|
||||
var first = visibleThumbs.first.id;
|
||||
// Account for only one thumbnail being visible.
|
||||
var last = numVisibleThumbs > 1 ?
|
||||
visibleThumbs.last.id : first;
|
||||
if (page <= first || page >= last)
|
||||
scrollIntoView(thumbnail);
|
||||
}
|
||||
thumbnail.classList.add('selected');
|
||||
var visibleThumbs = PDFView.getVisibleThumbs();
|
||||
var numVisibleThumbs = visibleThumbs.views.length;
|
||||
// If the thumbnail isn't currently visible scroll it into view.
|
||||
if (numVisibleThumbs > 0) {
|
||||
var first = visibleThumbs.first.id;
|
||||
// Account for only one thumbnail being visible.
|
||||
var last = numVisibleThumbs > 1 ?
|
||||
visibleThumbs.last.id : first;
|
||||
if (page <= first || page >= last)
|
||||
scrollIntoView(thumbnail);
|
||||
}
|
||||
|
||||
}
|
||||
document.getElementById('previous').disabled = (page <= 1);
|
||||
document.getElementById('next').disabled = (page >= PDFView.pages.length);
|
||||
|
|
|
|||
Loading…
Reference in a new issue