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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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95
extensions/firefox/components/PdfStreamConverter.js
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@ -104,11 +104,18 @@ function ChromeActions(domWindow) {
}
ChromeActions.prototype = {
download: function(data) {
download: function(data, sendResponse) {
var originalUrl = data.originalUrl;
// The data may not be downloaded so we need just retry getting the pdf with
// the original url.
var blobUrl = data.blobUrl || originalUrl;
var originalUri = NetUtil.newURI(originalUrl);
var blobUri = NetUtil.newURI(blobUrl);
let mimeService = Cc['@mozilla.org/mime;1'].getService(Ci.nsIMIMEService);
var handlerInfo = mimeService.
getFromTypeAndExtension('application/pdf', 'pdf');
var uri = NetUtil.newURI(data);
var extHelperAppSvc =
Cc['@mozilla.org/uriloader/external-helper-app-service;1'].
@ -116,26 +123,46 @@ ChromeActions.prototype = {
var frontWindow = Cc['@mozilla.org/embedcomp/window-watcher;1'].
getService(Ci.nsIWindowWatcher).activeWindow;
var ioService = Services.io;
var channel = ioService.newChannel(data, null, null);
var listener = {
extListener: null,
onStartRequest: function(aRequest, aContext) {
this.extListener = extHelperAppSvc.doContent('application/pdf',
aRequest, frontWindow, false);
this.extListener.onStartRequest(aRequest, aContext);
},
onStopRequest: function(aRequest, aContext, aStatusCode) {
if (this.extListener)
this.extListener.onStopRequest(aRequest, aContext, aStatusCode);
},
onDataAvailable: function(aRequest, aContext, aInputStream, aOffset,
aCount) {
this.extListener.onDataAvailable(aRequest, aContext, aInputStream,
aOffset, aCount);
}
};
var channel = ioService.newChannel(originalUrl, null, null);
channel.asyncOpen(listener, null);
NetUtil.asyncFetch(blobUri, function(aInputStream, aResult) {
if (!Components.isSuccessCode(aResult)) {
if (sendResponse)
sendResponse(true);
return;
}
// Create a nsIInputStreamChannel so we can set the url on the channel
// so the filename will be correct.
let channel = Cc['@mozilla.org/network/input-stream-channel;1'].
createInstance(Ci.nsIInputStreamChannel);
channel.setURI(originalUri);
channel.contentStream = aInputStream;
channel.QueryInterface(Ci.nsIChannel);
var listener = {
extListener: null,
onStartRequest: function(aRequest, aContext) {
this.extListener = extHelperAppSvc.doContent('application/pdf',
aRequest, frontWindow, false);
this.extListener.onStartRequest(aRequest, aContext);
},
onStopRequest: function(aRequest, aContext, aStatusCode) {
if (this.extListener)
this.extListener.onStopRequest(aRequest, aContext, aStatusCode);
// Notify the content code we're done downloading.
if (sendResponse)
sendResponse(false);
},
onDataAvailable: function(aRequest, aContext, aInputStream, aOffset,
aCount) {
this.extListener.onDataAvailable(aRequest, aContext, aInputStream,
aOffset, aCount);
}
};
channel.asyncOpen(listener, null);
});
},
setDatabase: function(data) {
if (inPrivateBrowsing)
@ -199,20 +226,38 @@ ChromeActions.prototype = {
function RequestListener(actions) {
this.actions = actions;
}
// Receive an event and synchronously responds.
// Receive an event and synchronously or asynchronously responds.
RequestListener.prototype.receive = function(event) {
var message = event.target;
var doc = message.ownerDocument;
var action = message.getUserData('action');
var data = message.getUserData('data');
var sync = message.getUserData('sync');
var actions = this.actions;
if (!(action in actions)) {
log('Unknown action: ' + action);
return;
}
var response = actions[action].call(this.actions, data);
message.setUserData('response', response, null);
};
if (sync) {
var response = actions[action].call(this.actions, data);
message.setUserData('response', response, null);
} else {
var response;
if (!message.getUserData('callback')) {
doc.documentElement.removeChild(message);
response = null;
} else {
response = function sendResponse(response) {
message.setUserData('response', response, null);
var listener = doc.createEvent('HTMLEvents');
listener.initEvent('pdf.js.response', true, false);
return message.dispatchEvent(listener);
}
}
actions[action].call(this.actions, data, response);
}
};
function PdfStreamConverter() {
}