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Refactors getDocument and adds PDFDataRangeTransport.

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This commit is contained in:
Yury Delendik 2015-01-05 21:45:01 -06:00
parent 31811b619f
commit 3a61edfcae
2 changed files with 247 additions and 125 deletions
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77
web/viewer.js
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@ -373,67 +373,18 @@ var PDFViewerApplication = {
//#if (FIREFOX || MOZCENTRAL)
initPassiveLoading: function pdfViewInitPassiveLoading() {
var pdfDataRangeTransportReadyResolve;
var pdfDataRangeTransportReady = new Promise(function (resolve) {
pdfDataRangeTransportReadyResolve = resolve;
});
var pdfDataRangeTransport = {
rangeListeners: [],
progressListeners: [],
progressiveReadListeners: [],
ready: pdfDataRangeTransportReady,
addRangeListener: function PdfDataRangeTransport_addRangeListener(
listener) {
this.rangeListeners.push(listener);
},
addProgressListener: function PdfDataRangeTransport_addProgressListener(
listener) {
this.progressListeners.push(listener);
},
addProgressiveReadListener:
function PdfDataRangeTransport_addProgressiveReadListener(listener) {
this.progressiveReadListeners.push(listener);
},
onDataRange: function PdfDataRangeTransport_onDataRange(begin, chunk) {
var listeners = this.rangeListeners;
for (var i = 0, n = listeners.length; i < n; ++i) {
listeners[i](begin, chunk);
}
},
onDataProgress: function PdfDataRangeTransport_onDataProgress(loaded) {
this.ready.then(function () {
var listeners = this.progressListeners;
for (var i = 0, n = listeners.length; i < n; ++i) {
listeners[i](loaded);
}
}.bind(this));
},
onDataProgressiveRead:
function PdfDataRangeTransport_onDataProgress(chunk) {
this.ready.then(function () {
var listeners = this.progressiveReadListeners;
for (var i = 0, n = listeners.length; i < n; ++i) {
listeners[i](chunk);
}
}.bind(this));
},
transportReady: function PdfDataRangeTransport_transportReady() {
pdfDataRangeTransportReadyResolve();
},
requestDataRange: function PdfDataRangeTransport_requestDataRange(
begin, end) {
FirefoxCom.request('requestDataRange', { begin: begin, end: end });
}
function FirefoxComDataRangeTransport(length, initialData) {
PDFJS.PDFDataRangeTransport.call(this, length, initialData);
}
FirefoxComDataRangeTransport.prototype =
Object.create(PDFJS.PDFDataRangeTransport.prototype);
FirefoxComDataRangeTransport.prototype.requestDataRange =
function FirefoxComDataRangeTransport_requestDataRange(begin, end) {
FirefoxCom.request('requestDataRange', { begin: begin, end: end });
};
var pdfDataRangeTransport;
window.addEventListener('message', function windowMessage(e) {
if (e.source !== null) {
// The message MUST originate from Chrome code.
@ -447,11 +398,11 @@ var PDFViewerApplication = {
}
switch (args.pdfjsLoadAction) {
case 'supportsRangedLoading':
pdfDataRangeTransport =
new FirefoxComDataRangeTransport(args.length, args.data);
PDFViewerApplication.open(args.pdfUrl, 0, undefined,
pdfDataRangeTransport, {
length: args.length,
initialData: args.data
});
pdfDataRangeTransport);
break;
case 'range':
pdfDataRangeTransport.onDataRange(args.begin, args.chunk);