38d87463af
Scholar.Notifier framework to handle update notifications between data layer and interface - Notifier.registerColumnTree(ref) and Notifier.registerItemTree(ref) pass back a unique hash that can be used to unregister the tree later with unregister*(hash) (and must be, lest we leak treeViews and probably entire browser windows if the browser window is closed without unregistering the treeView) - Data layer calls Scholar.Notify.trigger(event, type, id) after various events (only two calls in the data layer at the moment--more coming later) - Notify.trigger() calls notify(event, type, id) on all registered trees of the appropriate type -- the data layer usually knows what collection the action pertains to, but we decided that it's cleaner to just let the tree decide what it wants to do rather than add all that logic into the data layer) (Note: Item collection adds appear to be buggy on the interface side, but removes seem to be working)
126 lines
3.3 KiB
JavaScript
126 lines
3.3 KiB
JavaScript
const SCHOLAR_CONTRACTID = '@chnm.gmu.edu/Scholar;1';
|
|
const SCHOLAR_CLASSNAME = 'Firefox Scholar';
|
|
const SCHOLAR_CID = Components.ID('{e4c61080-ec2d-11da-8ad9-0800200c9a66}');
|
|
const SCHOLAR_IID = Components.interfaces.chnmIScholarService;
|
|
|
|
const Cc = Components.classes;
|
|
const Ci = Components.interfaces;
|
|
|
|
// Assign the global scope to a variable to passed via wrappedJSObject
|
|
var ScholarWrapped = this;
|
|
|
|
|
|
/********************************************************************
|
|
* Include the core objects to be stored within XPCOM
|
|
*********************************************************************/
|
|
|
|
Cc["@mozilla.org/moz/jssubscript-loader;1"]
|
|
.getService(Ci.mozIJSSubScriptLoader)
|
|
.loadSubScript("chrome://scholar/content/xpcom/scholar.js");
|
|
|
|
|
|
Cc["@mozilla.org/moz/jssubscript-loader;1"]
|
|
.getService(Ci.mozIJSSubScriptLoader)
|
|
.loadSubScript("chrome://scholar/content/xpcom/db.js");
|
|
|
|
Cc["@mozilla.org/moz/jssubscript-loader;1"]
|
|
.getService(Ci.mozIJSSubScriptLoader)
|
|
.loadSubScript("chrome://scholar/content/xpcom/data_access.js");
|
|
|
|
Cc["@mozilla.org/moz/jssubscript-loader;1"]
|
|
.getService(Ci.mozIJSSubScriptLoader)
|
|
.loadSubScript("chrome://scholar/content/xpcom/notifier.js");
|
|
|
|
/********************************************************************/
|
|
|
|
|
|
// Initialize the Scholar service
|
|
//
|
|
// This runs when ScholarService is first requested.
|
|
// Calls to other XPCOM components must be in here rather than in top-level
|
|
// code, as other components may not have yet been initialized.
|
|
function setupService(){
|
|
Scholar.init();
|
|
}
|
|
|
|
function ScholarService(){
|
|
this.wrappedJSObject = ScholarWrapped.Scholar;
|
|
setupService();
|
|
}
|
|
|
|
|
|
/**
|
|
* Convenience method to replicate window.alert()
|
|
**/
|
|
function alert(msg){
|
|
Cc["@mozilla.org/embedcomp/prompt-service;1"]
|
|
.getService(Ci.nsIPromptService)
|
|
.alert(null, "", msg);
|
|
}
|
|
|
|
|
|
//
|
|
// XPCOM goop
|
|
//
|
|
ScholarService.prototype = {
|
|
QueryInterface: function(iid){
|
|
if (!iid.equals(Components.interfaces.nsISupports) &&
|
|
!iid.equals(SCHOLAR_IID)){
|
|
throw Components.results.NS_ERROR_NO_INTERFACE;
|
|
}
|
|
return this;
|
|
}
|
|
};
|
|
|
|
|
|
var ScholarFactory = {
|
|
createInstance: function(outer, iid){
|
|
if (outer != null){
|
|
throw Components.results.NS_ERROR_NO_AGGREGATION;
|
|
}
|
|
return new ScholarService().QueryInterface(iid);
|
|
}
|
|
};
|
|
|
|
|
|
var ScholarModule = {
|
|
_firstTime: true,
|
|
|
|
registerSelf: function(compMgr, fileSpec, location, type){
|
|
if (!this._firstTime){
|
|
throw Components.results.NS_ERROR_FACTORY_REGISTER_AGAIN;
|
|
}
|
|
this._firstTime = false;
|
|
|
|
compMgr =
|
|
compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
|
|
|
|
compMgr.registerFactoryLocation(SCHOLAR_CID,
|
|
SCHOLAR_CLASSNAME,
|
|
SCHOLAR_CONTRACTID,
|
|
fileSpec,
|
|
location,
|
|
type);
|
|
},
|
|
|
|
unregisterSelf: function(compMgr, location, type){
|
|
compMgr =
|
|
compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
|
|
compMgr.unregisterFactoryLocation(SCHOLAR_CID, location);
|
|
},
|
|
|
|
getClassObject: function(compMgr, cid, iid){
|
|
if (!cid.equals(SCHOLAR_CID)){
|
|
throw Components.results.NS_ERROR_NO_INTERFACE;
|
|
}
|
|
if (!iid.equals(Components.interfaces.nsIFactory)){
|
|
throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
return ScholarFactory;
|
|
},
|
|
|
|
canUnload: function(compMgr){ return true; }
|
|
};
|
|
|
|
function NSGetModule(comMgr, fileSpec){ return ScholarModule; }
|