Merge pull request #2905 from halemmerich/fastload

fastload - Check for changes in setting.json and force real reload if needed

apps/fastload/ChangeLog

@@ -2,3 +2,4 @@
 0.02: Allow redirection of loads to the launcher
 0.03: Allow hiding the fastloading info screen
 0.04: (WIP) Allow use of app history when going back (`load()` or `Bangle.load()` calls without specified app).
+0.05: Check for changes in setting.js and force real reload if needed

apps/fastload/README.md

@@ -12,6 +12,7 @@ This allows fast loading of all apps with two conditions:
 * If Quick Launch is installed it can be excluded from app history
 * Allows to redirect all loads usually loading the clock to the launcher instead
 * The "Fastloading..." screen can be switched off
+* Enable checking `setting.json` and force a complete load on changes
 
 ## App history
 

apps/fastload/boot.js

@@ -19,15 +19,23 @@ let loadingScreen = function(){
 
 let cache = s.readJSON("fastload.cache") || {};
 
-let checkApp = function(n){
+const SYS_SETTINGS="setting.json";
+
+let appFastloadPossible = function(n){
+  if(SETTINGS.detectSettingsChange && (!cache[SYS_SETTINGS] || s.hash(SYS_SETTINGS) != cache[SYS_SETTINGS])){
+    cache[SYS_SETTINGS] = s.hash(SYS_SETTINGS);
+    s.writeJSON("fastload.cache", cache);
+    return false;
+  }
+
   // no widgets, no problem
   if (!global.WIDGETS) return true;
   let app = s.read(n);
-  if (cache[n] && E.CRC32(app) == cache[n].crc)
+  if (cache[n] && s.hash(app) == cache[n].hash)
     return cache[n].fast;
   cache[n] = {};
   cache[n].fast = app.includes("Bangle.loadWidgets");
-  cache[n].crc = E.CRC32(app);
+  cache[n].hash = s.hash(app);
   s.writeJSON("fastload.cache", cache);
   return cache[n].fast;
 };
@@ -39,7 +47,7 @@ let slowload = function(n){
 };
 
 let fastload = function(n){
-  if (!n || checkApp(n)){
+  if (!n || appFastloadPossible(n)){
     // Bangle.load can call load, to prevent recursion this must be the system load
     global.load = slowload;
     Bangle.load(n);

apps/fastload/metadata.json

@@ -1,7 +1,7 @@
 { "id": "fastload",
   "name": "Fastload Utils",
   "shortName" : "Fastload Utils",
-  "version": "0.04",
+  "version": "0.05",
   "icon": "icon.png",
   "description": "Enable experimental fastloading for more apps",
   "type":"bootloader",

apps/fastload/settings.js

@@ -59,6 +59,13 @@
         }
       };
 
+      mainmenu['Detect settings changes'] = {
+         value: !!settings.detectSettingsChange,
+         onchange: v => {
+           writeSettings("detectSettingsChange",v);
+         }
+      };
+
     return mainmenu;
   }