mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-26 01:58:06 +02:00
Code Activity

Moved helloworld/ to examples/helloworld/

Browse source
This commit is contained in:
Artur Adib 2011-09-15 09:28:58 -07:00
parent 6e29034912
commit 3476364886
5 changed files with 18 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

49
examples/helloworld/hello.js Normal file
View file

@ -0,0 +1,49 @@
//
// See README for overview
//
//
// Ajax GET request for binary files
// (like jQuery's $.get(), but supports the binary type ArrayBuffer)
//
var binaryGet = function(url, callback){
var xhr = new XMLHttpRequest();
xhr.open('GET', url);
xhr.mozResponseType = xhr.responseType = 'arraybuffer';
xhr.expected = (document.URL.indexOf('file:') === 0) ? 0 : 200;
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === xhr.expected) {
var data = (xhr.mozResponseArrayBuffer || xhr.mozResponse ||
xhr.responseArrayBuffer || xhr.response);
callback(data);
}
};
xhr.send(null);
}
//
// This is where the fun happens
//
binaryGet('helloworld.pdf', function(data){
//
// Instantiate PDFDoc with PDF data
//
var pdf = new PDFDoc(new Stream(data));
var page = pdf.getPage(1);
var scale = 1.5;
//
// Prepare canvas using PDF page dimensions
//
var canvas = document.getElementById('the-canvas');
var context = canvas.getContext('2d');
canvas.height = page.height * scale;
canvas.width = page.width * scale;
//
// Render PDF page into canvas context
//
page.startRendering(context);
});