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Merge pull request #9904 from RonLek/master
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Modified Examples to work without systemjs
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timvandermeij authored Jul 22, 2018
2 parents 2ce489c + 8afc4ce commit 1aaeaf3
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6 changes: 1 addition & 5 deletions README.md
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Expand Up @@ -102,11 +102,7 @@ You can play with the PDF.js API directly from your browser using the live demos

+ [Interactive examples](http://mozilla.github.io/pdf.js/examples/index.html#interactive-examples)

The repository contains a hello world example that you can run locally:

+ [examples/helloworld/](https://github.com/mozilla/pdf.js/blob/master/examples/helloworld/)

More examples can be found in the examples folder. Some of them are using the pdfjs-dist package, which can be built and installed in this repo directory via `gulp dist-install` command.
More examples can be found in the [examples folder](https://github.com/mozilla/pdf.js/tree/master/examples/). Some of them are using the pdfjs-dist package, which can be built and installed in this repo directory via `gulp dist-install` command.

For an introduction to the PDF.js code, check out the presentation by our
contributor Julian Viereck:
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2 changes: 1 addition & 1 deletion docs/contents/examples/index.md
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Expand Up @@ -5,7 +5,7 @@ template: layout.jade

## Hello World Walkthrough

[Full source](https://github.com/mozilla/pdf.js/tree/master/examples/helloworld)
[Full source](https://github.com/mozilla/pdf.js/blob/master/examples/learning/helloworld.html)

PDF.js heavily relies on the use of [Promises](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise). If promises are new to you, it's recommended you become familiar with them before continuing on.

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52 changes: 37 additions & 15 deletions examples/svgviewer/index.html
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@@ -1,29 +1,51 @@
<!DOCTYPE html>
<html>
<!--
Copyright 2014 Mozilla Foundation
<head>
<meta charset="utf-8">
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
<title>PDF.js SVG viewer example</title>
http://www.apache.org/licenses/LICENSE-2.0
<script src="../../node_modules/systemjs/dist/system.js"></script>
<script src="../../systemjs.config.js"></script>
<script src="viewer.js"></script>
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<html dir="ltr" mozdisallowselectionprint>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="google" content="notranslate">
<title>PDF.js SVG viewer using built components</title>

<style>
body {
background-color: #404040;
background-color: #808080;
margin: 0;
padding: 0;
}

.pageContainer {
border: 1px solid #000;
margin: 5px auto;
background-color: #FFF;
#viewerContainer {
overflow: auto;
position: absolute;
width: 100%;
height: 100%;
}
</style>

<link rel="stylesheet" href="../../node_modules/pdfjs-dist/web/pdf_viewer.css">

<script src="../../node_modules/pdfjs-dist/build/pdf.js"></script>
<script src="../../node_modules/pdfjs-dist/web/pdf_viewer.js"></script>
</head>

<body>
</body>
<body tabindex="1">
<div id="viewerContainer">
<div id="viewer" class="pdfViewer"></div>
</div>

<script src="viewer.js"></script>
</body>
</html>
119 changes: 63 additions & 56 deletions examples/svgviewer/viewer.js
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@@ -1,68 +1,75 @@
/* Copyright 2014 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

'use strict';

var DEFAULT_SCALE = 1.5;
if (!pdfjsLib.getDocument || !pdfjsViewer.PDFViewer) {
alert('Please build the pdfjs-dist library using\n' +
' `gulp dist-install`');
}

// Parse query string to extract some parameters (it can fail for some input)
var query = document.location.href.replace(/^[^?]*(\?([^#]*))?(#.*)?/, '$2');
var queryParams = query ? JSON.parse('{' + query.split('&').map(function (a) {
return a.split('=').map(decodeURIComponent).map(JSON.stringify).join(': ');
}).join(',') + '}') : {};
// The workerSrc property shall be specified.
//
pdfjsLib.GlobalWorkerOptions.workerSrc =
'../../node_modules/pdfjs-dist/build/pdf.worker.js';

var url = queryParams.file || '../../web/compressed.tracemonkey-pldi-09.pdf';
// Some PDFs need external cmaps.
//
var CMAP_URL = '../../node_modules/pdfjs-dist/cmaps/';
var CMAP_PACKED = true;

function renderDocument(pdf, svgLib) {
var promise = Promise.resolve();
for (var i = 1; i <= pdf.numPages; i++) {
// Using promise to fetch and render the next page
promise = promise.then(function (pageNum) {
return pdf.getPage(pageNum).then(function (page) {
var viewport = page.getViewport(DEFAULT_SCALE);
var DEFAULT_URL = '../../web/compressed.tracemonkey-pldi-09.pdf';
var SEARCH_FOR = ''; // try 'Mozilla';

var container = document.createElement('div');
container.id = 'pageContainer' + pageNum;
container.className = 'pageContainer';
container.style.width = viewport.width + 'px';
container.style.height = viewport.height + 'px';
document.body.appendChild(container);
var container = document.getElementById('viewerContainer');

return page.getOperatorList().then(function (opList) {
var svgGfx = new svgLib.SVGGraphics(page.commonObjs, page.objs);
return svgGfx.getSVG(opList, viewport).then(function (svg) {
container.appendChild(svg);
});
});
});
}.bind(null, i));
}
}
// (Optionally) enable hyperlinks within PDF files.
var pdfLinkService = new pdfjsViewer.PDFLinkService();

var pdfViewer = new pdfjsViewer.PDFViewer({
container: container,
linkService: pdfLinkService,
renderer: 'svg',
textLayerMode: 0,
});
pdfLinkService.setViewer(pdfViewer);

// (Optionally) enable find controller.
var pdfFindController = new pdfjsViewer.PDFFindController({
pdfViewer: pdfViewer,
});
pdfViewer.setFindController(pdfFindController);

Promise.all([System.import('pdfjs/display/api'),
System.import('pdfjs/display/svg'),
System.import('pdfjs/display/worker_options'),
System.import('pdfjs/display/network'),
System.resolve('pdfjs/worker_loader')])
.then(function (modules) {
var api = modules[0];
var svg = modules[1];
var GlobalWorkerOptions = modules[2].GlobalWorkerOptions;
var network = modules[3];
api.setPDFNetworkStreamFactory((params) => {
return new network.PDFNetworkStream(params);
});
container.addEventListener('pagesinit', function () {
// We can use pdfViewer now, e.g. let's change default scale.
pdfViewer.currentScaleValue = 'page-width';

// In production, change this to point to the built `pdf.worker.js` file.
GlobalWorkerOptions.workerSrc = modules[4];
if (SEARCH_FOR) { // We can try search for things
pdfFindController.executeCommand('find', {query: SEARCH_FOR});
}
});

// In production, change this to point to where the cMaps are placed.
var CMAP_URL = '../../external/bcmaps/';
var CMAP_PACKED = true;
// Loading document.
pdfjsLib.getDocument({
url: DEFAULT_URL,
cMapUrl: CMAP_URL,
cMapPacked: CMAP_PACKED,
}).then(function(pdfDocument) {
// Document loaded, specifying document for the viewer and
// the (optional) linkService.
pdfViewer.setDocument(pdfDocument);

// Fetch the PDF document from the URL using promises.
api.getDocument({
url: url,
cMapUrl: CMAP_URL,
cMapPacked: CMAP_PACKED,
}).then(function(doc) {
renderDocument(doc, svg);
});
pdfLinkService.setDocument(pdfDocument, null);
});

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