assets/www/js/history.js

   1
   2 var History = new function() {
   3         var self = this;
   4
   5         self.init = function(success, error) {
   6                 console.log('History.init');
   7
   8                 self.viewStack = [];
   9                 navigator.app.overrideBackbutton();
  10                 document.addEventListener("backbutton", History.goBack, true);
  11
  12                 success && success();
  13         };
  14
  15         self.visit = function(url, offset) {
  16                 offset = offset || 0;
  17                 self.viewStack.push(View.current);
  18                 console.log('History.visit: ' + url);
  19                 View.enter(url, offset);
  20         };
  21
  22         self.goBack = function() {
  23                 if (self.viewStack.length > 0) {
  24                         var url = self.viewStack.pop();
  25                         console.log('History.goBack: ' + url);
  26                         View.enter(url);
  27                 }
  28                 else {
  29                         console.log('History: exiting');
  30                         navigator.app.exitApp();
  31                 }
  32         };
  33
  34
  35         self.lastRead = function() {
  36                 var last_read = window.localStorage.getItem('History.last_ids');
  37                 try {
  38                         return last_read.split(';');
  39                 } catch (err) {
  40                         return [];
  41                 }
  42         };
  43
  44         self.addRead = function(id, offset) {
  45                 id = "" + id; // this should check if int
  46                 console.log("History.addRead: " + id);
  47                 var last_read = self.lastRead();
  48                 var lastly = last_read.indexOf(id);
  49                 if (lastly != -1) {
  50                         last_read.splice(lastly, 1);
  51                 }
  52                 while (last_read.length >= 10) {
  53                         last_read.pop();
  54                 }
  55                 last_read.unshift(id);
  56                 window.localStorage.setItem('History.last_ids', last_read.join(';'));
  57         }
  58
  59
  60         self.bookmarks = function() {
  61                 var bookmarks = window.localStorage.getItem('History.bookmarks');
  62                 try {
  63                         return JSON.parse(bookmarks) || [];
  64                 } catch (err) {
  65                         return [];
  66                 }
  67         };
  68
  69         self.addBookmark = function(name) {
  70                 var id=(new Date).getTime();
  71                 console.log("History.addBookmark: " + id);
  72
  73                 var bms = self.bookmarks();
  74                 bms.unshift({
  75                         id: id,
  76                         name: name,
  77                         title: View.currentTitle,
  78                         view: View.currentView,
  79                         par: View.currentPar,
  80                         offset: currentOffset()
  81                 });
  82                 window.localStorage.setItem('History.bookmarks', JSON.stringify(bms));
  83         }
  84
  85         self.deleteBookmark = function(id) {
  86                 console.log("History.deleteBookmark: " + id);
  87                 var bms = self.bookmarks();
  88                 for (b in bms) {
  89                         if (bms[b].id == id) {
  90                                 bms.splice(b, 1);
  91                         }
  92                 }
  93                 window.localStorage.setItem('History.bookmarks', JSON.stringify(bms));
  94                 View.onBookmarkChange();
  95         }
  96 }