mirror of
https://github.com/mozilla/pdf.js.git
synced 2025-04-26 01:58:06 +02:00
Fixing names.
This commit is contained in:
Brendan Dahl
parent
3b2d7ed66d
commit
2c49cab3a1
4 changed files with 276 additions and 268 deletions
500
src/api.js
500
src/api.js
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@ -1,7 +1,250 @@
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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(function pdfApiWrapper() {
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PDFJS.getDocument = function getDocument(source) {
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var promise = new PDFJS.Promise();
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var transport = new WorkerTransport(promise);
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if (typeof source === 'string') {
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// fetch url
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PDFJS.getPdf(
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{
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url: source,
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progress: function getPDFProgress(evt) {
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if (evt.lengthComputable)
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promise.progress({
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loaded: evt.loaded,
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total: evt.total
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});
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},
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error: function getPDFError(e) {
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promise.reject('Unexpected server response of ' +
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e.target.status + '.');
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}
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},
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function getPDFLoad(data) {
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transport.sendData(data);
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});
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} else {
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// assuming the source is array, instantiating directly from it
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transport.sendData(source);
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}
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return promise;
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};
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var PDFDocumentProxy = (function() {
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function PDFDocumentProxy(pdfInfo, transport) {
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this.pdfInfo = pdfInfo;
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this.transport = transport;
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}
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PDFDocumentProxy.prototype = {
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get numPages() {
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return this.pdfInfo.numPages;
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},
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get fingerprint() {
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return this.pdfInfo.fingerprint;
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},
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getPage: function(number) {
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return this.transport.getPage(number);
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},
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getDestinations: function() {
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var promise = new PDFJS.Promise();
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var destinations = this.pdfInfo.destinations;
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promise.resolve(destinations);
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return promise;
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},
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getOutline: function() {
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var promise = new PDFJS.Promise();
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var outline = this.pdfInfo.outline;
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promise.resolve(outline);
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return promise;
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},
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getMetadata: function() {
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var promise = new PDFJS.Promise();
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var info = this.pdfInfo.info;
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var metadata = this.pdfInfo.metadata;
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promise.resolve({
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info: info,
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metadata: metadata ? new PDFJS.Metadata(metadata) : null
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});
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return promise;
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},
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destroy: function() {
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this.transport.destroy();
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}
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};
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return PDFDocumentProxy;
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})();
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var PDFPageProxy = (function PDFPageProxyClosure() {
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function PDFPageProxy(pageInfo, transport) {
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this.pageInfo = pageInfo;
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this.transport = transport;
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this._stats = new StatTimer();
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this.objs = transport.objs;
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}
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PDFPageProxy.prototype = {
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get pageNumber() {
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return this.pageInfo.pageIndex + 1;
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},
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get rotate() {
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return this.pageInfo.rotate;
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},
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get stats() {
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return this._stats;
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},
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get ref() {
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return this.pageInfo.ref;
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},
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get view() {
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return this.pageInfo.view;
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},
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getViewport: function(scale, rotate) {
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if (arguments.length < 2)
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rotate = this.rotate;
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return new PDFJS.PageViewport(this.view, scale, rotate, 0, 0);
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},
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getAnnotations: function() {
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var promise = new PDFJS.Promise();
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var annotations = this.pageInfo.annotations;
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promise.resolve(annotations);
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return promise;
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},
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render: function(renderContext) {
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var promise = new Promise();
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var stats = this.stats;
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stats.time('Overall');
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// If there is no displayReadyPromise yet, then the operatorList was never
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// requested before. Make the request and create the promise.
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if (!this.displayReadyPromise) {
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this.displayReadyPromise = new Promise();
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this.stats.time('Page Request');
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this.transport.messageHandler.send('RenderPageRequest', {
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pageIndex: this.pageNumber - 1
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});
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}
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var callback = (function complete(error) {
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if (error)
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promise.reject(error);
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else
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promise.resolve();
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});
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// Once the operatorList and fonts are loaded, do the actual rendering.
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this.displayReadyPromise.then(
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function pageDisplayReadyPromise() {
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var gfx = new CanvasGraphics(renderContext.canvasContext,
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this.objs, renderContext.textLayer);
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try {
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this.display(gfx, renderContext.viewport, callback);
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} catch (e) {
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if (callback)
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callback(e);
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else
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error(e);
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}
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}.bind(this),
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function pageDisplayReadPromiseError(reason) {
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if (callback)
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callback(reason);
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else
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error(reason);
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}
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);
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return promise;
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},
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startRenderingFromOperatorList:
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function PDFPageWrapper_startRenderingFromOperatorList(operatorList,
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fonts) {
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var self = this;
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this.operatorList = operatorList;
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var displayContinuation = function pageDisplayContinuation() {
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// Always defer call to display() to work around bug in
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// Firefox error reporting from XHR callbacks.
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setTimeout(function pageSetTimeout() {
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self.displayReadyPromise.resolve();
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});
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};
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this.ensureFonts(fonts,
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function pageStartRenderingFromOperatorListEnsureFonts() {
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displayContinuation();
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}
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);
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},
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ensureFonts: function PDFPageWrapper_ensureFonts(fonts, callback) {
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this.stats.time('Font Loading');
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// Convert the font names to the corresponding font obj.
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for (var i = 0, ii = fonts.length; i < ii; i++) {
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fonts[i] = this.objs.objs[fonts[i]].data;
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}
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// Load all the fonts
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FontLoader.bind(
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fonts,
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function pageEnsureFontsFontObjs(fontObjs) {
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this.stats.timeEnd('Font Loading');
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callback.call(this);
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}.bind(this)
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);
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},
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display: function PDFPageWrapper_display(gfx, viewport, callback) {
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var stats = this.stats;
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stats.time('Rendering');
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gfx.beginDrawing(viewport);
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var startIdx = 0;
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var length = this.operatorList.fnArray.length;
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var operatorList = this.operatorList;
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var stepper = null;
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if (PDFJS.pdfBug && StepperManager.enabled) {
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stepper = StepperManager.create(this.pageNumber);
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stepper.init(operatorList);
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stepper.nextBreakPoint = stepper.getNextBreakPoint();
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}
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var self = this;
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function next() {
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startIdx =
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gfx.executeOperatorList(operatorList, startIdx, next, stepper);
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if (startIdx == length) {
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gfx.endDrawing();
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stats.timeEnd('Rendering');
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stats.timeEnd('Overall');
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if (callback) callback();
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}
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}
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next();
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},
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getTextContent: function() {
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var promise = new PDFJS.Promise();
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var textContent = 'page text'; // not implemented
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promise.resolve(textContent);
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return promise;
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},
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getOperationList: function() {
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var promise = new PDFJS.Promise();
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var operationList = { // not implemented
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dependencyFontsID: null,
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operatorList: null
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};
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promise.resolve(operationList);
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return promise;
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}
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};
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return PDFPageProxy;
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})();
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var WorkerTransport = (function WorkerTransportClosure() {
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function WorkerTransport(promise) {
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this.workerReadyPromise = promise;
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this.objs = new PDFObjects();
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@ -92,22 +335,22 @@
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function WorkerTransport_setupMessageHandler(messageHandler) {
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this.messageHandler = messageHandler;
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messageHandler.on('getdoc', function transportDoc(data) {
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messageHandler.on('GetDoc', function transportDoc(data) {
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var pdfInfo = data.pdfInfo;
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var pdfDocument = new PdfDocumentWrapper(pdfInfo, this);
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var pdfDocument = new PDFDocumentProxy(pdfInfo, this);
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this.pdfDocument = pdfDocument;
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this.workerReadyPromise.resolve(pdfDocument);
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}, this);
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messageHandler.on('getpage', function transportPage(data) {
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messageHandler.on('GetPage', function transportPage(data) {
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var pageInfo = data.pageInfo;
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var page = new PdfPageWrapper(pageInfo, this);
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var page = new PDFPageProxy(pageInfo, this);
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this.pageCache[pageInfo.pageIndex] = page;
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var promise = this.pagePromises[pageInfo.pageIndex];
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promise.resolve(page);
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}, this);
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messageHandler.on('renderpage', function transportRender(data) {
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messageHandler.on('RenderPage', function transportRender(data) {
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var page = this.pageCache[data.pageIndex];
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var depFonts = data.depFonts;
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@ -149,7 +392,7 @@
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}
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}, this);
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messageHandler.on('page_error', function transportError(data) {
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messageHandler.on('PageError', function transportError(data) {
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var page = this.pageCache[data.pageNum];
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if (page.displayReadyPromise)
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page.displayReadyPromise.reject(data.error);
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@ -157,7 +400,7 @@
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error(data.error);
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}, this);
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messageHandler.on('jpeg_decode', function(data, promise) {
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messageHandler.on('JpegDecode', function(data, promise) {
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var imageData = data[0];
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var components = data[1];
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if (components != 3 && components != 1)
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@ -194,7 +437,7 @@
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},
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sendData: function WorkerTransport_sendData(data) {
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this.messageHandler.send('getdoc_request', data);
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this.messageHandler.send('GetDocRequest', data);
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},
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getPage: function WorkerTransport_getPage(pageNumber, promise) {
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@ -203,245 +446,10 @@
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return this.pagePromises[pageIndex];
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var promise = new PDFJS.Promise('Page ' + pageNumber);
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this.pagePromises[pageIndex] = promise;
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this.messageHandler.send('getpage_request', { pageIndex: pageIndex });
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this.messageHandler.send('GetPageRequest', { pageIndex: pageIndex });
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return promise;
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}
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};
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function PdfPageWrapper(pageInfo, transport) {
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this.pageInfo = pageInfo;
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this.transport = transport;
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this._stats = new StatTimer();
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this.objs = transport.objs;
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}
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PdfPageWrapper.prototype = {
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get pageNumber() {
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return this.pageInfo.pageIndex + 1;
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},
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get rotate() {
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return this.pageInfo.rotate;
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},
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get stats() {
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return this._stats;
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},
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get ref() {
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return this.pageInfo.ref;
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},
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get view() {
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return this.pageInfo.view;
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},
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getViewport: function(scale, rotate) {
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if (arguments.length < 2)
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rotate = this.rotate;
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return new PDFJS.PageViewport(this.view, scale, rotate, 0, 0);
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},
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getAnnotations: function() {
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var promise = new PDFJS.Promise();
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var annotations = this.pageInfo.annotations;
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promise.resolve(annotations);
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return promise;
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},
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render: function(renderContext) {
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var promise = new Promise();
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var stats = this.stats;
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stats.time('Overall');
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// If there is no displayReadyPromise yet, then the operatorList was never
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// requested before. Make the request and create the promise.
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if (!this.displayReadyPromise) {
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this.displayReadyPromise = new Promise();
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return WorkerTransport;
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this.stats.time('Page Request');
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this.transport.messageHandler.send('renderpage_request', {
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pageIndex: this.pageNumber - 1
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});
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}
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var callback = (function complete(error) {
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if (error)
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promise.reject(error);
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else
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promise.resolve();
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});
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// Once the operatorList and fonts are loaded, do the actual rendering.
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this.displayReadyPromise.then(
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function pageDisplayReadyPromise() {
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var gfx = new CanvasGraphics(renderContext.canvasContext,
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this.objs, renderContext.textLayer);
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try {
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this.display(gfx, renderContext.viewport, callback);
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} catch (e) {
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if (callback)
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callback(e);
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else
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error(e);
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}
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}.bind(this),
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function pageDisplayReadPromiseError(reason) {
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if (callback)
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callback(reason);
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else
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error(reason);
|
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}
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);
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return promise;
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},
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startRenderingFromOperatorList:
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function PdfPageWrapper_startRenderingFromOperatorList(operatorList,
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fonts) {
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var self = this;
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this.operatorList = operatorList;
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var displayContinuation = function pageDisplayContinuation() {
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// Always defer call to display() to work around bug in
|
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// Firefox error reporting from XHR callbacks.
|
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setTimeout(function pageSetTimeout() {
|
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self.displayReadyPromise.resolve();
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});
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};
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|
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this.ensureFonts(fonts,
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function pageStartRenderingFromOperatorListEnsureFonts() {
|
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displayContinuation();
|
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}
|
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);
|
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},
|
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|
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ensureFonts: function PdfPageWrapper_ensureFonts(fonts, callback) {
|
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this.stats.time('Font Loading');
|
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// Convert the font names to the corresponding font obj.
|
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for (var i = 0, ii = fonts.length; i < ii; i++) {
|
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fonts[i] = this.objs.objs[fonts[i]].data;
|
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}
|
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|
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// Load all the fonts
|
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FontLoader.bind(
|
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fonts,
|
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function pageEnsureFontsFontObjs(fontObjs) {
|
||||
this.stats.timeEnd('Font Loading');
|
||||
|
||||
callback.call(this);
|
||||
}.bind(this)
|
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);
|
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},
|
||||
|
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display: function PdfPageWrapper_display(gfx, viewport, callback) {
|
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var stats = this.stats;
|
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stats.time('Rendering');
|
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|
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gfx.beginDrawing(viewport);
|
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|
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var startIdx = 0;
|
||||
var length = this.operatorList.fnArray.length;
|
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var operatorList = this.operatorList;
|
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var stepper = null;
|
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if (PDFJS.pdfBug && StepperManager.enabled) {
|
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stepper = StepperManager.create(this.pageNumber);
|
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stepper.init(operatorList);
|
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stepper.nextBreakPoint = stepper.getNextBreakPoint();
|
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}
|
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|
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var self = this;
|
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function next() {
|
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startIdx =
|
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gfx.executeOperatorList(operatorList, startIdx, next, stepper);
|
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if (startIdx == length) {
|
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gfx.endDrawing();
|
||||
stats.timeEnd('Rendering');
|
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stats.timeEnd('Overall');
|
||||
if (callback) callback();
|
||||
}
|
||||
}
|
||||
next();
|
||||
},
|
||||
|
||||
getTextContent: function() {
|
||||
var promise = new PDFJS.Promise();
|
||||
var textContent = 'page text'; // not implemented
|
||||
promise.resolve(textContent);
|
||||
return promise;
|
||||
},
|
||||
getOperationList: function() {
|
||||
var promise = new PDFJS.Promise();
|
||||
var operationList = { // not implemented
|
||||
dependencyFontsID: null,
|
||||
operatorList: null
|
||||
};
|
||||
promise.resolve(operationList);
|
||||
return promise;
|
||||
}
|
||||
};
|
||||
|
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function PdfDocumentWrapper(pdfInfo, transport) {
|
||||
this.pdfInfo = pdfInfo;
|
||||
this.transport = transport;
|
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}
|
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PdfDocumentWrapper.prototype = {
|
||||
get numPages() {
|
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return this.pdfInfo.numPages;
|
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},
|
||||
get fingerprint() {
|
||||
return this.pdfInfo.fingerprint;
|
||||
},
|
||||
getPage: function(number) {
|
||||
return this.transport.getPage(number);
|
||||
},
|
||||
getDestinations: function() {
|
||||
var promise = new PDFJS.Promise();
|
||||
var destinations = this.pdfInfo.destinations;
|
||||
promise.resolve(destinations);
|
||||
return promise;
|
||||
},
|
||||
getOutline: function() {
|
||||
var promise = new PDFJS.Promise();
|
||||
var outline = this.pdfInfo.outline;
|
||||
promise.resolve(outline);
|
||||
return promise;
|
||||
},
|
||||
getMetadata: function() {
|
||||
var promise = new PDFJS.Promise();
|
||||
var info = this.pdfInfo.info;
|
||||
var metadata = this.pdfInfo.metadata;
|
||||
promise.resolve({
|
||||
info: info,
|
||||
metadata: metadata ? new PDFJS.Metadata(metadata) : null
|
||||
});
|
||||
return promise;
|
||||
},
|
||||
destroy: function() {
|
||||
this.transport.destroy();
|
||||
}
|
||||
};
|
||||
|
||||
PDFJS.getDocument = function getDocument(source) {
|
||||
var promise = new PDFJS.Promise();
|
||||
var transport = new WorkerTransport(promise);
|
||||
if (typeof source === 'string') {
|
||||
// fetch url
|
||||
PDFJS.getPdf(
|
||||
{
|
||||
url: source,
|
||||
progress: function getPdfProgress(evt) {
|
||||
if (evt.lengthComputable)
|
||||
promise.progress({
|
||||
loaded: evt.loaded,
|
||||
total: evt.total
|
||||
});
|
||||
},
|
||||
error: function getPdfError(e) {
|
||||
promise.reject('Unexpected server response of ' +
|
||||
e.target.status + '.');
|
||||
}
|
||||
},
|
||||
function getPdfLoad(data) {
|
||||
transport.sendData(data);
|
||||
});
|
||||
} else {
|
||||
// assuming the source is array, instantiating directly from it
|
||||
transport.sendData(source);
|
||||
}
|
||||
return promise;
|
||||
};
|
||||
})();
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue