When the app is reopened, jump to today.

2 files changed, 23 insertions, 7 deletions

diff --git a/hesla.appcache b/hesla.appcache
index 48d167f..5433420 100644
--- a/hesla.appcache
+++ b/hesla.appcache
@@ -1,5 +1,5 @@
 CACHE MANIFEST
-# v72 - 2015-09-23
+# v74 - 2015-10-12
 activePage.js
 activePage.js.map
 config.js
diff --git a/hesla.es b/hesla.es
index 69b65ef..ccd51b4 100644
--- a/hesla.es
+++ b/hesla.es
@@ -3,7 +3,7 @@ import {ActivePage} from "activePage";
 if (!Date.prototype.toISODateString) {
   (function() {
     Date.prototype.toISODateString = function() {
-      return this.toISOString().split('T')[0]
+      return this.toISOString().split('T')[0];
     };
 
   }());
@@ -13,16 +13,28 @@ export class Hesla extends ActivePage {
   constructor() {
     super();
     document.getElementById("czech_nav").addEventListener("click",
-      (evt: TouchEvent) => {
+      (evt) => {
         localStorage.setItem("language", "cs");
         this.lang_reload();
       }, false);
 
     document.getElementById("german_nav").addEventListener("click",
-      (evt: TouchEvent) => {
+      (evt) => {
         localStorage.setItem("language", "de");
         this.lang_reload();
       }, false);
+
+    // requires IE 10, Opera 12.10, Safari 7,
+    // FIXME Android browser requires 4.4 and has only
+    // webkitHidden and the event is webkitvisibilitychange
+    if (typeof document.hidden !== "undefined") {
+        document.addEventListener("visibilitychange",
+          (evt) => {
+            if (! document.hidden) {
+                this.today();
+            }
+          }, false);
+    }
   }
 
   /**
@@ -50,9 +62,7 @@ export class Hesla extends ActivePage {
       this.prev();
     }
     else if (Math.abs(distY) > negligible) {
-      console.log("jump to today!");
-      this.cur_watchword = new Date();
-      this.display();
+      this.today();
     }
   }
 
@@ -91,6 +101,12 @@ export class Hesla extends ActivePage {
       classList.add("visible");
   }
 
+  today() {
+    console.log("jump to today!");
+    this.cur_watchword = new Date();
+    this.display();
+  }
+
   shiftDate(shift) {
     var cur_date = this.cur_watchword;
     cur_date.setDate(cur_date.getDate() + shift);