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Firefox extension now use the default loading indicator

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This commit is contained in:
Vivien Nicolas 2011-09-28 12:53:53 +02:00
parent 6ae80b5e78
commit 556727f2f5
3 changed files with 64 additions and 35 deletions
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57
extensions/firefox/components/pdfContentHandler.js
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@ -8,9 +8,6 @@ const PDF_CONTENT_TYPE = "application/pdf";
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
// TODO
// Add some download progress event
function log(aMsg) {
let msg = "pdfContentHandler.js: " + (aMsg.join ? aMsg.join("") : aMsg);
Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService)
@ -18,33 +15,45 @@ function log(aMsg) {
dump(msg + "\n");
};
function fireEventTo(aName, aData, aWindow) {
let window = aWindow.wrappedJSObject;
let evt = window.document.createEvent("CustomEvent");
evt.initCustomEvent("pdf" + aName, false, false, aData);
window.document.dispatchEvent(evt);
};
function loadDocument(aWindow, aDocumentUrl) {
let xhr = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
.createInstance(Ci.nsIXMLHttpRequest);
xhr.open("GET", aDocumentUrl);
xhr.mozResponseType = xhr.responseType = "arraybuffer";
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
let data = (xhr.mozResponseArrayBuffer || xhr.mozResponse ||
xhr.responseArrayBuffer || xhr.response);
try {
var view = new Uint8Array(data);
// I think accessing aWindow.wrappedJSObject returns a
// XPCSafeJSObjectWrapper and so it is safe but mrbkap can confirm that
let window = aWindow.wrappedJSObject;
var arrayBuffer = new window.ArrayBuffer(data.byteLength);
var view2 = new window.Uint8Array(arrayBuffer);
view2.set(view);
xhr.onprogress = function updateProgress(evt) {
if (evt.lengthComputable)
fireEventTo(evt.type, evt.loaded / evt.total, aWindow);
};
let evt = window.document.createEvent("CustomEvent");
evt.initCustomEvent("pdfloaded", false, false, arrayBuffer);
window.document.dispatchEvent(evt);
} catch(e) {
log("Error - " + e);
}
xhr.onerror = function error(evt) {
fireEventTo(evt.type, false, aWindow);
};
xhr.onload = function load(evt) {
let data = (xhr.mozResponseArrayBuffer || xhr.mozResponse ||
xhr.responseArrayBuffer || xhr.response);
try {
let view = new Uint8Array(data);
let window = aWindow.wrappedJSObject;
let arrayBuffer = new window.ArrayBuffer(data.byteLength);
let view2 = new window.Uint8Array(arrayBuffer);
view2.set(view);
fireEventTo(evt.type, arrayBuffer, aWindow);
} catch(e) {
log("Error - " + e);
}
};
xhr.open("GET", aDocumentUrl);
xhr.responseType = "arraybuffer";
xhr.send(null);
};
@ -131,7 +140,7 @@ pdfContentHandler.prototype = {
url = url.replace("%s", uri.spec);
window.location = url;
} catch(e) {
log("Error - " + e);
log("Error retrieving the pdf.js base url - " + e);
}
},