Add sharing support

js/sharing.js

@@ -0,0 +1,85 @@
+define(["jquery", "core", "async-runner", "gdrive-provider", "underscore"], function($, core, asyncRunner) {
+	var sharing = {};
+	
+	// Create a map with providerId: providerObject
+	var providerMap = _.chain(arguments)
+		.map(function(argument) {
+			return argument && argument.providerId && [argument.providerId, argument];
+		}).compact().object().value();
+
+	sharing.getLink = function(attributes) {
+		var provider = providerMap[attributes.provider];
+		if(provider === undefined) {
+			return undefined;
+		}
+		var url = [BASE_URL, 'viewer.html?provider=', attributes.provider];
+		_.each(provider.sharingAttributes, function(attributeName) {
+			url.push('&');
+			url.push(attributeName);
+			url.push('=');
+			url.push(attributes[attributeName]);
+		});
+		return url.join("");
+	};
+	
+	sharing.createLink = function(attributes, callback) {
+		if(attributes.sharingLink !== undefined) {
+			callback();
+			return;
+		}
+		var provider = providerMap[attributes.provider];
+		if(provider === undefined) {
+			callback();
+			return;
+		}
+		var task = asyncRunner.createTask();
+		var shortUrl = undefined;
+		task.onRun(function() {
+			if(core.isOffline === true) {
+				task.chain();
+				return;
+			}
+			var url = [MAIN_URL, 'viewer.html?provider=', attributes.provider];
+			_.each(provider.sharingAttributes, function(attributeName) {
+				url.push('&');
+				url.push(attributeName);
+				url.push('=');
+				url.push(attributes[attributeName]);
+			});
+			$.getJSON(
+		        "https://api-ssl.bitly.com/v3/shorten", 
+		        { 
+		            "access_token": BITLY_ACCESS_TOKEN,
+		            "longUrl": url.join("")
+		        },
+		        function(response)
+		        {
+		        	if(response.data) {
+		        		shortUrl = response.data.url;
+		        	}
+		            console.log(shortUrl);
+		            task.chain();
+		        }
+		    );
+		});
+		task.onSuccess(function() {
+			callback(shortUrl);
+		});
+		asyncRunner.addTask(task);
+	};
+	
+	core.onReady(function() {
+		var fileIndexList = _.compact(localStorage["file.list"].split(";"));
+		_.each(fileIndexList, function(fileIndex) {
+			var publishIndexList = _.compact(localStorage[fileIndex + ".publish"].split(";"));
+			_.each(publishIndexList, function(publishIndex) {
+				var publishAttributes = JSON.parse(localStorage[publishIndex]);
+				sharing.createLink(publishAttributes, function(shortUrl) {
+					publishAttributes.sharingLink = shortUrl;
+				});
+			});
+		});
+	});
+	
+	return sharing;
+});

js/storage.js

@@ -0,0 +1,129 @@
+// Setup an empty localStorage or upgrade an existing one
+function setupLocalStorage() {
+	
+	// Create the file system if not exist
+	if (localStorage["file.list"] === undefined) {
+		localStorage["file.list"] = ";";
+	}
+	var fileIndexList = _.compact(localStorage["file.list"].split(";"));
+	
+	// localStorage versioning
+	var version = localStorage["version"];
+	
+	// Upgrade from v0 to v1
+	if(version === undefined) {
+		
+		// Not used anymore
+		localStorage.removeItem("sync.queue");
+		localStorage.removeItem("sync.current");
+		localStorage.removeItem("file.counter");			
+		
+		_.each(fileIndexList, function(fileIndex) {
+			localStorage[fileIndex + ".publish"] = ";";
+			var syncIndexList = _.compact(localStorage[fileIndex + ".sync"].split(";"));
+			_.each(syncIndexList, function(syncIndex) {
+				localStorage[syncIndex + ".contentCRC"] = "0";
+				// We store title CRC only for Google Drive synchronization
+				if(localStorage[syncIndex + ".etag"] !== undefined) {
+					localStorage[syncIndex + ".titleCRC"] = "0";
+				}
+			});
+		});
+		version = "v1";
+	}
+	
+	// Upgrade from v1 to v2
+	if(version == "v1") {
+		var gdriveLastChangeId = localStorage["sync.gdrive.lastChangeId"];
+		if(gdriveLastChangeId) {
+			localStorage["gdrive.lastChangeId"] = gdriveLastChangeId;
+			localStorage.removeItem("sync.gdrive.lastChangeId");
+		}
+		var dropboxLastChangeId = localStorage["sync.dropbox.lastChangeId"];
+		if(dropboxLastChangeId) {
+			localStorage["dropbox.lastChangeId"] = dropboxLastChangeId;
+			localStorage.removeItem("sync.dropbox.lastChangeId");
+		}
+		
+		var SYNC_PROVIDER_GDRIVE = "sync." + PROVIDER_GDRIVE + ".";
+		var SYNC_PROVIDER_DROPBOX = "sync." + PROVIDER_DROPBOX + ".";
+		_.each(fileIndexList, function(fileIndex) {
+			var syncIndexList = _.compact(localStorage[fileIndex + ".sync"].split(";"));
+			_.each(syncIndexList, function(syncIndex) {
+				var syncAttributes = {};
+				if (syncIndex.indexOf(SYNC_PROVIDER_GDRIVE) === 0) {
+					syncAttributes.provider = PROVIDER_GDRIVE;
+					syncAttributes.id = syncIndex.substring(SYNC_PROVIDER_GDRIVE.length);
+					syncAttributes.etag = localStorage[syncIndex + ".etag"];
+					syncAttributes.contentCRC = localStorage[syncIndex + ".contentCRC"];
+					syncAttributes.titleCRC = localStorage[syncIndex + ".titleCRC"];
+				}
+				else if (syncIndex.indexOf(SYNC_PROVIDER_DROPBOX) === 0) {
+					syncAttributes.provider = PROVIDER_DROPBOX;
+					syncAttributes.path = decodeURIComponent(syncIndex.substring(SYNC_PROVIDER_DROPBOX.length));
+					syncAttributes.version = localStorage[syncIndex + ".version"];
+					syncAttributes.contentCRC = localStorage[syncIndex + ".contentCRC"];
+				}
+				localStorage[syncIndex] = JSON.stringify(syncAttributes);
+				localStorage.removeItem(syncIndex + ".etag");
+				localStorage.removeItem(syncIndex + ".version");
+				localStorage.removeItem(syncIndex + ".contentCRC");
+				localStorage.removeItem(syncIndex + ".titleCRC");
+			});
+		});
+		version = "v2";
+	}
+	
+	// Upgrade from v2 to v3
+	if(version == "v2") {
+		_.each(fileIndexList, function(fileIndex) {
+			if(!_.has(localStorage, fileIndex + ".sync")) {
+				localStorage.removeItem(fileIndex + ".title");
+				localStorage.removeItem(fileIndex + ".publish");
+				localStorage.removeItem(fileIndex + ".content");
+				localStorage["file.list"] = localStorage["file.list"].replace(";"
+					+ fileIndex + ";", ";");
+			}
+		});
+		version = "v3";
+	}
+	
+	// Upgrade from v3 to v4
+	if(version == "v3") {
+		var currentFileIndex = localStorage["file.current"];
+		if(currentFileIndex !== undefined && 
+			localStorage["file.list"].indexOf(";" + currentFileIndex + ";") === -1)
+		{
+			localStorage.removeItem("file.current");
+		}
+		version = "v4";
+	}
+	
+	// Upgrade from v4 to v5
+	if(version == "v4") {
+		// Recreate GitHub token
+		localStorage.removeItem("githubToken");
+		version = "v5";
+	}
+	
+	// Upgrade from v5 to v6
+	if(version == "v5") {
+		_.each(fileIndexList, function(fileIndex) {
+			var publishIndexList = _.compact(localStorage[fileIndex + ".publish"].split(";"));
+			_.each(publishIndexList, function(publishIndex) {
+				var publishAttributes = JSON.parse(localStorage[publishIndex]);
+				if(publishAttributes.provider == "gdrive") {
+					// Change fileId to Id to be consistent with syncAttributes
+					publishAttributes.id = publishAttributes.fileId;
+					publishAttributes.fileId = undefined;
+					localStorage[publishIndex] = JSON.stringify(publishAttributes);
+				}
+			});
+		});
+		version = "v6";
+	}
+	
+	localStorage["version"] = version;
+}
+// Setup the localStorage when starting
+setupLocalStorage();