mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-25 09:38:06 +02:00
Code Activity

Fetches pdf data in the worker

Browse source
This commit is contained in:
Yury Delendik 2012-06-23 14:48:33 -05:00
parent e2b0c76585
commit 00f1d6dbf1
6 changed files with 137 additions and 52 deletions
Download patch file Download diff file Expand all files Collapse all files

94
src/api.js
View file

@ -18,52 +18,21 @@
* @return {Promise} A promise that is resolved with {PDFDocumentProxy} object.
*/
PDFJS.getDocument = function getDocument(source) {
var url, data, headers, password, parameters = {};
if (typeof source === 'string') {
url = source;
source = { url: source };
} else if (isArrayBuffer(source)) {
data = source;
} else if (typeof source === 'object') {
url = source.url;
data = source.data;
headers = source.httpHeaders;
password = source.password;
parameters.password = password || null;
if (!url && !data)
error('Invalid parameter array, need either .data or .url');
} else {
source = { data: source };
} else if (typeof source !== 'object') {
error('Invalid parameter in getDocument, need either Uint8Array, ' +
'string or a parameter object');
}
if (!source.url && !source.data)
error('Invalid parameter array, need either .data or .url');
var promise = new PDFJS.Promise();
var transport = new WorkerTransport(promise);
if (data) {
// assuming the data is array, instantiating directly from it
transport.sendData(data, parameters);
} else if (url) {
// fetch url
PDFJS.getPdf(
{
url: url,
progress: function getPDFProgress(evt) {
if (evt.lengthComputable)
promise.progress({
loaded: evt.loaded,
total: evt.total
});
},
error: function getPDFError(e) {
promise.reject('Unexpected server response of ' +
e.target.status + '.');
},
headers: headers
},
function getPDFLoad(data) {
transport.sendData(data, parameters);
});
}
transport.fetchDocument(source);
return promise;
};
@ -511,6 +480,34 @@ var WorkerTransport = (function WorkerTransportClosure() {
this.workerReadyPromise.resolve(pdfDocument);
}, this);
messageHandler.on('FetchDoc', function transportFetchDoc(data) {
var url = data.url;
var headers = data.httpHeaders;
var password = data.password;
var promise = this.workerReadyPromise;
var transport = this;
PDFJS.getPdf(
{
url: url,
progress: function getPDFProgress(evt) {
if (evt.lengthComputable)
promise.progress({
loaded: evt.loaded,
total: evt.total
});
},
error: function getPDFError(e) {
promise.reject('Unexpected server response of ' +
e.target.status + '.');
},
headers: headers
},
function getPDFLoad(data) {
transport.sendData(data);
});
}, this);
messageHandler.on('NeedPassword', function transportPassword(data) {
this.workerReadyPromise.reject(data.exception.message, data.exception);
}, this);
@ -577,6 +574,17 @@ var WorkerTransport = (function WorkerTransportClosure() {
}
}, this);
messageHandler.on('DocProgress', function transportDocProgress(data) {
this.workerReadyPromise.progress({
loaded: data.loaded,
total: data.total
});
}, this);
messageHandler.on('DocError', function transportDocError(data) {
this.workerReadyPromise.reject(data.message);
}, this);
messageHandler.on('PageError', function transportError(data) {
var page = this.pageCache[data.pageNum - 1];
if (page.displayReadyPromise)
@ -621,11 +629,15 @@ var WorkerTransport = (function WorkerTransportClosure() {
});
},
sendData: function WorkerTransport_sendData(data, params) {
this.messageHandler.send('GetDocRequest', {data: data, params: params});
sendData: function WorkerTransport_sendData(data) {
this.messageHandler.send('GetDocRequest', {data: data});
},
getData: function WorkerTransport_sendData(promise) {
fetchDocument: function WorkerTransport_fetchDocument(source) {
this.messageHandler.send('FetchDocRequest', {source: source});
},
getData: function WorkerTransport_getData(promise) {
this.messageHandler.send('GetData', null, function(data) {
promise.resolve(data);
});