Sakurai/pdf.js
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Make sure to guard against load errors.

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This commit is contained in:
Rob Sayre 2011-07-04 14:25:33 -07:00
parent a4f8251d10
commit 1aa0b390b9
1 changed files with 17 additions and 12 deletions
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29
test/driver.js
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@ -57,6 +57,7 @@ function nextTask() {
r.open("GET", task.file);
r.mozResponseType = r.responseType = "arraybuffer";
r.onreadystatechange = function() {
var failure;
if (r.readyState == 4) {
var data = r.mozResponseArrayBuffer || r.mozResponse ||
r.responseArrayBuffer || r.response;
@ -67,7 +68,7 @@ function nextTask() {
failure = 'load PDF doc: '+ e.toString();
}
task.pageNum = 1, nextPage(task);
task.pageNum = 1, nextPage(task, failure);
}
};
r.send(null);
@ -77,7 +78,7 @@ function isLastPage(task) {
return (task.pdfDoc && (task.pageNum > task.pdfDoc.numPages));
}
function nextPage(task) {
function nextPage(task, loadError) {
if (isLastPage(task)) {
if (++task.round < task.rounds) {
log(" Round "+ (1 + task.round) +"\n");
@ -88,20 +89,24 @@ function nextPage(task) {
}
}
var failure = '';
log(" loading page "+ task.pageNum +"... ");
var failure = loadError || '';
var ctx = canvas.getContext("2d");
var fonts = [];
var ctx = null;
var fonts;
var gfx = null;
var page = null;
try {
gfx = new CanvasGraphics(ctx);
page = task.pdfDoc.getPage(task.pageNum);
page.compile(gfx, fonts);
} catch(e) {
failure = 'compile: '+ e.toString();
if (!failure) {
log(" loading page "+ task.pageNum +"... ");
ctx = canvas.getContext("2d");
fonts = [];
try {
gfx = new CanvasGraphics(ctx);
page = task.pdfDoc.getPage(task.pageNum);
page.compile(gfx, fonts);
} catch(e) {
failure = 'compile: '+ e.toString();
}
}
if (!failure) {