refactor: promisize save

main.js

@@ -34,7 +34,6 @@ var pending = false;
 var settings = null;
 var tags = null;
 var titlemap = {};
-var clip = "";
 
 var stat =
 {
@@ -1199,7 +1198,7 @@ function loadstorage()
 	var title = params.get("n");
 	var line = params.get("l");
 	var tags = params.get("t");
-	clip = params.get("c");
+	var clip = params.get("c");
 
 	if (clip)
 	{
@@ -1224,9 +1223,8 @@ function loadstorage()
 		notepage.appendChild(msg);
 
 		saved = false;
-		save();
+		return save()
-
+		.then(window.close);
-		return;
 	}
 
 	if (currentnote)
@@ -1858,13 +1856,11 @@ function setsaved()
 	unsavedmark.hidden = true;
 	saved = true;
 	lastsaved = timestamp();
-	if (clip)
-	{
-		close();
-	}
 }
 
 function save()
+{
+	return new Promise(function(resolve, reject)
 	{
 		clearTimeout(workerid);
 
@@ -1874,40 +1870,39 @@ function save()
 			savesettings();
 			loadsettings();
 			setsaved();
-		return;
+			resolve();
 		}
 		else if (currentnote.title == "pgpkeys")
 		{
 			localStorage.setItem("pgpkeys", md.value);
 			setsaved();
-		return;
+			resolve();
 		}
-
+		else if (!localdata)
-	if (!localdata)
 		{
 			showtemporaryinfo("cannot push empty data");
-		return;
+			reject();
 		}
-
+		else if (pending)
-	if (pending)
 		{
 			console.log("pending query: save cancelled");
-		return;
+			reject();
 		}
-
+		else if (saved)
-	if (saved)
 		{
 			console.log("nothing to save");
-		return;
+			reject();
 		}
-
+		else
+		{
 			var content = md.value;
 			if ((content == "" && backup != "") || content == "null" || content == "undefined")
 			{
 				showtemporaryinfo("Invalid content '" + content + "', file '" + currentnote.title + "' not saved");
-		return;
+				reject();
 			}
-
+			else
+			{
 				currentnote.pos = md.selectionStart;
 				currentnote.content = content;
 				putontop();
@@ -1917,7 +1912,7 @@ function save()
 				if (settings.sync)
 				{
 					var datatosend = JSON.stringify(localdata);
-		encryptstring(datatosend)
+					return encryptstring(datatosend)
 					.then(encrypted =>
 					{
 						console.log("sending data to php server...");
@@ -1936,20 +1931,28 @@ function save()
 						if (content != md.value)
 						{
 							console.log("but content changed: will save again");
-				datachanged();
+							return datachanged();
 						}
 						else if (!saved)
 						{
 							console.log("save failed. Data unsaved on server. Will retry.");
-				datachanged();
+							return datachanged();
+						}
+						else
+						{
+							resolve();
 						}
 					});
 				}
 				else
 				{
 					setsaved();
+					resolve();
 				}
 			}
+		}
+	});
+}
 
 function escapeHtml(unsafe) {
 	return unsafe
@@ -2220,7 +2223,7 @@ function datachanged()
 	saved = false;
 	unsavedmark.hidden = !settings.sync;
 
-	postpone()
+	return postpone()
 	.then(save);
 }