|
|
|
|
@ -7,72 +7,82 @@ const Cm = Components.manager;
@@ -7,72 +7,82 @@ const Cm = Components.manager;
|
|
|
|
|
const Cu = Components.utils; |
|
|
|
|
|
|
|
|
|
const PREF_PREFIX = 'pdfjs'; |
|
|
|
|
const PREF_ENABLED = PREF_PREFIX + '.enabled'; |
|
|
|
|
const PREF_DISABLED = PREF_PREFIX + '.disabled'; |
|
|
|
|
const PREF_FIRST_RUN = PREF_PREFIX + '.firstRun'; |
|
|
|
|
const PREF_PREVIOUS_ACTION = PREF_PREFIX + '.previousAction'; |
|
|
|
|
const PREF_PREVIOUS_ASK = PREF_PREFIX + '.previousAsk'; |
|
|
|
|
const PDFJS_HANDLER_CHANGED = 'pdfjs:handlerChanged'; |
|
|
|
|
const PREF_PREVIOUS_ACTION = PREF_PREFIX + '.previousHandler.preferredAction'; |
|
|
|
|
const PREF_PREVIOUS_ASK = PREF_PREFIX + '.previousHandler.alwaysAskBeforeHandling'; |
|
|
|
|
const TOPIC_PDFJS_HANDLER_CHANGED = 'pdfjs:handlerChanged'; |
|
|
|
|
|
|
|
|
|
Cu.import('resource://gre/modules/XPCOMUtils.jsm'); |
|
|
|
|
Cu.import('resource://gre/modules/Services.jsm'); |
|
|
|
|
Cu.import('resource://pdf.js.components/PdfStreamConverter.js'); |
|
|
|
|
|
|
|
|
|
let mimeService = Cc["@mozilla.org/mime;1"] |
|
|
|
|
.getService(Ci.nsIMIMEService); |
|
|
|
|
let Svc = {}; |
|
|
|
|
XPCOMUtils.defineLazyServiceGetter(Svc, 'mime', |
|
|
|
|
'@mozilla.org/mime;1', |
|
|
|
|
'nsIMIMEService'); |
|
|
|
|
|
|
|
|
|
function getBoolPref(pref, def) { |
|
|
|
|
function getBoolPref(aPref, aDefaultValue) { |
|
|
|
|
try { |
|
|
|
|
return Services.prefs.getBoolPref(pref); |
|
|
|
|
return Services.prefs.getBoolPref(aPref); |
|
|
|
|
} catch (ex) { |
|
|
|
|
return def; |
|
|
|
|
return aDefaultValue; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// Register/unregister a class as a component.
|
|
|
|
|
// Register/unregister a constructor as a component.
|
|
|
|
|
let Factory = { |
|
|
|
|
registrar: null, |
|
|
|
|
aClass: null, |
|
|
|
|
register: function(aClass) { |
|
|
|
|
if (this.aClass) { |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
this.registrar = Cm.QueryInterface(Ci.nsIComponentRegistrar); |
|
|
|
|
this.aClass = aClass; |
|
|
|
|
var proto = aClass.prototype; |
|
|
|
|
this.registrar.registerFactory(proto.classID, proto.classDescription, |
|
|
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIFactory]), |
|
|
|
|
_targetConstructor: null, |
|
|
|
|
|
|
|
|
|
register: function register(targetConstructor) { |
|
|
|
|
this._targetConstructor = targetConstructor; |
|
|
|
|
var proto = targetConstructor.prototype; |
|
|
|
|
var registrar = Cm.QueryInterface(Ci.nsIComponentRegistrar); |
|
|
|
|
registrar.registerFactory(proto.classID, proto.classDescription, |
|
|
|
|
proto.contractID, this); |
|
|
|
|
}, |
|
|
|
|
unregister: function() { |
|
|
|
|
if (!this.aClass) { |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
var proto = this.aClass.prototype; |
|
|
|
|
this.registrar.unregisterFactory(proto.classID, this); |
|
|
|
|
this.aClass = null; |
|
|
|
|
|
|
|
|
|
unregister: function unregister() { |
|
|
|
|
var proto = this._targetConstructor.prototype; |
|
|
|
|
var registrar = Cm.QueryInterface(Ci.nsIComponentRegistrar); |
|
|
|
|
registrar.unregisterFactory(proto.classID, this); |
|
|
|
|
this._targetConstructor = null; |
|
|
|
|
}, |
|
|
|
|
// nsIFactory::createInstance
|
|
|
|
|
createInstance: function(outer, iid) { |
|
|
|
|
if (outer !== null) |
|
|
|
|
|
|
|
|
|
// nsIFactory
|
|
|
|
|
createInstance: function createInstance(aOuter, iid) { |
|
|
|
|
if (aOuter !== null) |
|
|
|
|
throw Cr.NS_ERROR_NO_AGGREGATION; |
|
|
|
|
return (new (this.aClass)).QueryInterface(iid); |
|
|
|
|
return (new (this._targetConstructor)).QueryInterface(iid); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// nsIFactory
|
|
|
|
|
lockFactory: function lockFactory(lock) { |
|
|
|
|
// No longer used as of gecko 1.7.
|
|
|
|
|
throw Cr.NS_ERROR_NOT_IMPLEMENTED; |
|
|
|
|
} |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
let PdfJs = { |
|
|
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]), |
|
|
|
|
_registered: false, |
|
|
|
|
init: function() { |
|
|
|
|
|
|
|
|
|
init: function init() { |
|
|
|
|
// On first run make pdf.js the default handler.
|
|
|
|
|
if (getBoolPref(PREF_ENABLED, false) && getBoolPref(PREF_FIRST_RUN, false)) { |
|
|
|
|
if (!getBoolPref(PREF_DISABLED, true) && getBoolPref(PREF_FIRST_RUN, false)) { |
|
|
|
|
Services.prefs.setBoolPref(PREF_FIRST_RUN, false); |
|
|
|
|
|
|
|
|
|
let handlerService = Cc['@mozilla.org/uriloader/handler-service;1']. |
|
|
|
|
getService(Ci.nsIHandlerService); |
|
|
|
|
let handlerInfo = mimeService.getFromTypeAndExtension('application/pdf', 'pdf'); |
|
|
|
|
|
|
|
|
|
let handlerInfo = Svc.mime.getFromTypeAndExtension('application/pdf', 'pdf'); |
|
|
|
|
// Store the previous settings of preferredAction and
|
|
|
|
|
// alwaysAskBeforeHandling in case we need to fall back to it.
|
|
|
|
|
// alwaysAskBeforeHandling in case we need to revert them in a hotfix that
|
|
|
|
|
// would turn pdf.js off.
|
|
|
|
|
Services.prefs.setIntPref(PREF_PREVIOUS_ACTION, handlerInfo.preferredAction); |
|
|
|
|
Services.prefs.setBoolPref(PREF_PREVIOUS_ASK, handlerInfo.alwaysAskBeforeHandling); |
|
|
|
|
|
|
|
|
|
let handlerService = Cc['@mozilla.org/uriloader/handler-service;1']. |
|
|
|
|
getService(Ci.nsIHandlerService); |
|
|
|
|
|
|
|
|
|
// Change and save mime handler settings.
|
|
|
|
|
handlerInfo.alwaysAskBeforeHandling = false; |
|
|
|
|
handlerInfo.preferredAction = Ci.nsIHandlerInfo.handleInternally; |
|
|
|
|
@ -80,42 +90,49 @@ let PdfJs = {
@@ -80,42 +90,49 @@ let PdfJs = {
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (this.enabled) |
|
|
|
|
this._register(); |
|
|
|
|
this._ensureRegistered(); |
|
|
|
|
else |
|
|
|
|
this._unregister(); |
|
|
|
|
this._ensureUnregistered(); |
|
|
|
|
|
|
|
|
|
// Listen for when pdf.js is completely disabled or a different pdf handler
|
|
|
|
|
// is chosen.
|
|
|
|
|
Services.prefs.addObserver(PREF_ENABLED, this, false); |
|
|
|
|
Services.obs.addObserver(this, PDFJS_HANDLER_CHANGED, false); |
|
|
|
|
Services.prefs.addObserver(PREF_DISABLED, this, false); |
|
|
|
|
Services.obs.addObserver(this, TOPIC_PDFJS_HANDLER_CHANGED, false); |
|
|
|
|
}, |
|
|
|
|
observe: function(subject, topic, data) { |
|
|
|
|
if (topic != 'nsPref:changed' && topic != PDFJS_HANDLER_CHANGED) |
|
|
|
|
return; |
|
|
|
|
|
|
|
|
|
// nsIObserver
|
|
|
|
|
observe: function observe(aSubject, aTopic, aData) { |
|
|
|
|
if (this.enabled) |
|
|
|
|
this._register(); |
|
|
|
|
this._ensureRegistered(); |
|
|
|
|
else |
|
|
|
|
this._unregister(); |
|
|
|
|
this._ensureUnregistered(); |
|
|
|
|
}, |
|
|
|
|
// pdf.js is only enabled if we're both selected as the pdf viewer and if the
|
|
|
|
|
// global switch enabling it is true.
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* pdf.js is only enabled if it is both selected as the pdf viewer and if the |
|
|
|
|
* global switch enabling it is true. |
|
|
|
|
* @return {boolean} Wether or not it's enabled. |
|
|
|
|
*/ |
|
|
|
|
get enabled() { |
|
|
|
|
var handlerInfo = mimeService. |
|
|
|
|
getFromTypeAndExtension('application/pdf', 'pdf'); |
|
|
|
|
var disabled = getBoolPref(PREF_DISABLED, true); |
|
|
|
|
if (disabled) |
|
|
|
|
return false; |
|
|
|
|
|
|
|
|
|
var selectedAsHandler = handlerInfo && (handlerInfo.alwaysAskBeforeHandling == false && |
|
|
|
|
handlerInfo.preferredAction == Ci.nsIHandlerInfo.handleInternally); |
|
|
|
|
return getBoolPref(PREF_ENABLED, false) && selectedAsHandler; |
|
|
|
|
var handlerInfo = Svc.mime. |
|
|
|
|
getFromTypeAndExtension('application/pdf', 'pdf'); |
|
|
|
|
return handlerInfo.alwaysAskBeforeHandling == false && |
|
|
|
|
handlerInfo.preferredAction == Ci.nsIHandlerInfo.handleInternally; |
|
|
|
|
}, |
|
|
|
|
_register: function() { |
|
|
|
|
|
|
|
|
|
_ensureRegistered: function _ensureRegistered() { |
|
|
|
|
if (this._registered) |
|
|
|
|
return; |
|
|
|
|
|
|
|
|
|
Factory.register(PdfStreamConverter); |
|
|
|
|
this._registered = true; |
|
|
|
|
}, |
|
|
|
|
_unregister: function() { |
|
|
|
|
|
|
|
|
|
_ensureUnregistered: function _ensureUnregistered() { |
|
|
|
|
if (!this._registered) |
|
|
|
|
return; |
|
|
|
|
|
|
|
|
|
|
Yury Delendik
13 years ago