Sakurai/pdf.js
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Wait for animation frame before displaying stuff

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Yury Delendik 2013-01-25 13:58:49 -06:00
parent a0313bef22
commit 9a5ecae2a3
1 changed files with 23 additions and 1 deletions
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24
web/viewer.js
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@ -59,7 +59,13 @@ function getFileName(url) {
}
function scrollIntoView(element, spot) {
// Assuming offsetParent is available (it's not available when viewer is in
// hidden iframe or object). We have to scroll: if the offsetParent is not set
// producing the error. See also animationStartedClosure.
var parent = element.offsetParent, offsetY = element.offsetTop;
if (!parent) {
error('offsetParent is not set -- cannot scroll');
}
while (parent.clientHeight == parent.scrollHeight) {
offsetY += parent.offsetTop;
parent = parent.offsetParent;
@ -1286,7 +1292,8 @@ var PDFView = {
});
// outline and initial view depends on destinations and pagesRefMap
var promises = [pagesPromise, destinationsPromise, storePromise];
var promises = [pagesPromise, destinationsPromise, storePromise,
PDFView.animationStartedPromise];
PDFJS.Promise.all(promises).then(function() {
pdfDocument.getOutline().then(function(outline) {
self.outline = new DocumentOutlineView(outline);
@ -3311,6 +3318,21 @@ window.addEventListener('afterprint', function afterPrint(evt) {
window.addEventListener('webkitfullscreenchange', fullscreenChange, false);
})();
(function animationStartedClosure() {
// The offsetParent is not set until the pdf.js iframe or object is visible.
// Waiting for first animation.
var requestAnimationFrame = window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function startAtOnce(callback) { callback(); };
PDFView.animationStartedPromise = new PDFJS.Promise();
requestAnimationFrame(function onAnimationFrame() {
PDFView.animationStartedPromise.resolve();
});
})();
//#if B2G
//window.navigator.mozSetMessageHandler('activity', function(activity) {
// var url = activity.source.data.url;