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Use already downloaded data for the open with/save as dialog.

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This commit is contained in:
Brendan Dahl 2012-06-01 14:17:09 -07:00
parent 8ae9c7dcbd
commit 6175e4b526
5 changed files with 166 additions and 34 deletions
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82
web/viewer.js
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@ -116,16 +116,19 @@ var RenderingQueue = (function RenderingQueueClosure() {
var FirefoxCom = (function FirefoxComClosure() {
return {
/**
* Creates an event that hopefully the extension is listening for and will
* Creates an event that the extension is listening for and will
* synchronously respond to.
* NOTE: It is reccomended to use request() instead since one day we may not
* be able to synchronously reply.
* @param {String} action The action to trigger.
* @param {String} data Optional data to send.
* @return {*} The response.
*/
request: function(action, data) {
requestSync: function(action, data) {
var request = document.createTextNode('');
request.setUserData('action', action, null);
request.setUserData('data', data, null);
request.setUserData('sync', true, null);
document.documentElement.appendChild(request);
var sender = document.createEvent('Events');
@ -134,6 +137,39 @@ var FirefoxCom = (function FirefoxComClosure() {
var response = request.getUserData('response');
document.documentElement.removeChild(request);
return response;
},
/**
* Creates an event that the extension is listening for and will
* asynchronously respond by calling the callback.
* @param {String} action The action to trigger.
* @param {String} data Optional data to send.
* @param {Function} callback Optional response callback that will be called
* with one data argument.
*/
request: function(action, data, callback) {
var request = document.createTextNode('');
request.setUserData('action', action, null);
request.setUserData('data', data, null);
request.setUserData('sync', false, null);
if (callback) {
request.setUserData('callback', callback, null);
document.addEventListener('pdf.js.response', function listener(event) {
var node = event.target,
callback = node.getUserData('callback'),
response = node.getUserData('response');
document.documentElement.removeChild(node);
document.removeEventListener('pdf.js.response', listener, false);
return callback(response);
}, false);
}
document.documentElement.appendChild(request);
var sender = document.createEvent('HTMLEvents');
sender.initEvent('pdf.js.message', true, false);
return request.dispatchEvent(sender);
}
};
})();
@ -160,7 +196,7 @@ var Settings = (function SettingsClosure() {
var database = null;
var index;
if (isFirefoxExtension)
database = FirefoxCom.request('getDatabase', null) || '{}';
database = FirefoxCom.requestSync('getDatabase', null) || '{}';
else if (isLocalStorageEnabled)
database = localStorage.getItem('database') || '{}';
else
@ -193,7 +229,7 @@ var Settings = (function SettingsClosure() {
file[name] = val;
var database = JSON.stringify(this.database);
if (isFirefoxExtension)
FirefoxCom.request('setDatabase', database);
FirefoxCom.requestSync('setDatabase', database);
else if (isLocalStorageEnabled)
localStorage.setItem('database', database);
},
@ -224,6 +260,7 @@ var PDFView = {
container: null,
initialized: false,
fellback: false,
pdfDocument: null,
// called once when the document is loaded
initialize: function pdfViewInitialize() {
this.container = document.getElementById('viewerContainer');
@ -348,6 +385,7 @@ var PDFView = {
PDFView.loadingBar = new ProgressBar('#loadingBar', {});
}
this.pdfDocument = null;
var self = this;
self.loading = true;
PDFJS.getDocument(parameters).then(
@ -384,9 +422,37 @@ var PDFView = {
},
download: function pdfViewDownload() {
function noData() {
FirefoxCom.request('download', { originalUrl: url });
}
var url = this.url.split('#')[0];
if (PDFJS.isFirefoxExtension) {
FirefoxCom.request('download', url);
// Document isn't ready just try to download with the url.
if (!this.pdfDocument) {
noData();
return;
}
this.pdfDocument.getData().then(
function getDataSuccess(data) {
var bb = new MozBlobBuilder();
bb.append(data.buffer);
var blobUrl = window.URL.createObjectURL(
bb.getBlob('application/pdf'));
FirefoxCom.request('download', { blobUrl: blobUrl, originalUrl: url },
function response(err) {
if (err) {
// This error won't really be helpful because it's likely the
// fallback won't work either (or is already open).
PDFView.error('PDF failed to download.');
}
window.URL.revokeObjectURL(blobUrl);
}
);
},
noData // Error ocurred try downloading with just the url.
);
} else {
url += '#pdfjs.action=download', '_parent';
window.open(url, '_parent');
@ -544,6 +610,8 @@ var PDFView = {
};
}
this.pdfDocument = pdfDocument;
var errorWrapper = document.getElementById('errorWrapper');
errorWrapper.setAttribute('hidden', 'true');
@ -1520,7 +1588,7 @@ window.addEventListener('load', function webViewerLoad(evt) {
PDFJS.disableTextLayer = (hashParams['disableTextLayer'] === 'true');
if ('pdfBug' in hashParams &&
(!PDFJS.isFirefoxExtension || FirefoxCom.request('pdfBugEnabled'))) {
(!PDFJS.isFirefoxExtension || FirefoxCom.requestSync('pdfBugEnabled'))) {
PDFJS.pdfBug = true;
var pdfBug = hashParams['pdfBug'];
var enabled = pdfBug.split(',');
@ -1529,7 +1597,7 @@ window.addEventListener('load', function webViewerLoad(evt) {
}
if (!PDFJS.isFirefoxExtension ||
(PDFJS.isFirefoxExtension && FirefoxCom.request('searchEnabled'))) {
(PDFJS.isFirefoxExtension && FirefoxCom.requestSync('searchEnabled'))) {
document.querySelector('#viewSearch').classList.remove('hidden');
}