Test refactoring for async api.

This commit is contained in:
Brendan Dahl 2012-04-11 18:05:43 -07:00
parent 3b83a42a91
commit 5608f8e445
3 changed files with 47 additions and 38 deletions

View File

@ -15,7 +15,6 @@
// all requirements to run parts of pdf.js in a web worker.
// Right now, the requirement is, that an Uint8Array is still an Uint8Array
// as it arrives on the worker. Chrome added this with version 15.
globalScope.PDFJS.disableWorker = true;
if (!globalScope.PDFJS.disableWorker && typeof Worker !== 'undefined') {
var workerSrc = PDFJS.workerSrc;
if (typeof workerSrc === 'undefined') {
@ -203,7 +202,7 @@
getPage: function WorkerTransport_getPage(n, promise) {
if (this.pageCache[n - 1]) {
promise.resolve(pageCache[n - 1]);
promise.resolve(this.pageCache[n - 1]);
return;
}
if ((n - 1) in this.pagePromises) {

View File

@ -100,13 +100,24 @@ function nextTask() {
getPdf(task.file, function nextTaskGetPdf(data) {
var failure;
function continuation() {
task.pageNum = task.firstPage || 1;
nextPage(task, failure);
}
try {
task.pdfDoc = new PDFJS.PDFDoc(data);
var promise = PDFJS.getDocument(data);
promise.then(function(doc) {
task.pdfDoc = doc;
continuation();
}, function(e) {
failure = 'load PDF doc : ' + e;
continuation();
});
return;
} catch (e) {
failure = 'load PDF doc : ' + exceptionToString(e);
}
task.pageNum = task.firstPage || 1;
nextPage(task, failure);
continuation();
});
}
@ -163,45 +174,43 @@ function nextPage(task, loadError) {
log(' loading page ' + task.pageNum + '/' + task.pdfDoc.numPages +
'... ');
var ctx = canvas.getContext('2d');
page = task.pdfDoc.getPage(task.pageNum);
task.pdfDoc.getPage(task.pageNum).then(function(page) {
var pdfToCssUnitsCoef = 96.0 / 72.0;
// using mediaBox for the canvas size
var pageWidth = page.width;
var pageHeight = page.height;
canvas.width = pageWidth * pdfToCssUnitsCoef;
canvas.height = pageHeight * pdfToCssUnitsCoef;
clear(ctx);
var pdfToCssUnitsCoef = 96.0 / 72.0;
// using mediaBox for the canvas size
var pageWidth = page.width;
var pageHeight = page.height;
canvas.width = pageWidth * pdfToCssUnitsCoef;
canvas.height = pageHeight * pdfToCssUnitsCoef;
clear(ctx);
// using the text layer builder that does nothing to test
// text layer creation operations
var textLayerBuilder = {
beginLayout: function nullTextLayerBuilderBeginLayout() {},
endLayout: function nullTextLayerBuilderEndLayout() {},
appendText: function nullTextLayerBuilderAppendText(text, fontName,
fontSize) {}
};
page.startRendering(
ctx,
function nextPageStartRendering(error) {
var failureMessage = false;
if (error)
failureMessage = 'render : ' + error.message;
snapshotCurrentPage(task, failureMessage);
// using the text layer builder that does nothing to test
// text layer creation operations
var textLayerBuilder = {
beginLayout: function nullTextLayerBuilderBeginLayout() {},
endLayout: function nullTextLayerBuilderEndLayout() {},
appendText: function nullTextLayerBuilderAppendText(text, fontName,
fontSize) {}
};
var renderContext = {
canvasContext: ctx,
textLayer: textLayerBuilder,
viewport: page.getViewport(1)
};
page.render(renderContext).then(function() {
snapshotCurrentPage(task, false);
},
textLayerBuilder
);
function(error) {
snapshotCurrentPage(task, 'render : ' + error);
});
},
function(error) {
snapshotCurrentPage(task, 'render : ' + error);
});
} catch (e) {
failure = 'page setup : ' + exceptionToString(e);
snapshotCurrentPage(task, failure);
}
}
if (failure) {
// Skip right to snapshotting if there was a failure, since the
// fonts might be in an inconsistent state.
snapshotCurrentPage(task, failure);
}
}
function snapshotCurrentPage(task, failure) {

View File

@ -5,6 +5,7 @@
<style type="text/css"></style>
<script type="text/javascript" src="/src/core.js"></script>
<script type="text/javascript" src="/src/util.js"></script>
<script type="text/javascript" src="/src/api.js"></script>
<script type="text/javascript" src="/src/canvas.js"></script>
<script type="text/javascript" src="/src/obj.js"></script>
<script type="text/javascript" src="/src/function.js"></script>