git.roojs.org Git - app.Builder.js/blob - src/Resources.vala

   1 /**
   2  * Resources
   3  *
   4  * Idea is to manage resourse used by the app.
   5  *
   6  * The original code downloaded all the resources before it renders the main window
   7  *
   8  * This is a bit annoying as although they do change quite a bit, it's not on every app start
   9  *
  10  * So the Resource fetching behaviour should be a button on the File view page
  11  * That starts the refresh of the resources.
  12  *
  13  * I'm not quite sure how we should flow this - if we do them all at once.. might be a bit of a server
  14  * overload... so sequentially may be best...
  15 */
  16
  17 public class Resources : Object
  18 {
  19
  20      public signal void updateProgress(uint cur_pos);
  21
  22      static Resources singleton_val;
  23
  24      string[] avail_files;
  25
  26      public static Resources singleton()
  27      {
  28         if (singleton_val == null) {
  29             singleton_val = new Resources();
  30         }
  31         return singleton_val;
  32
  33      }
  34          public Resources ()
  35          {
  36
  37            this.avail_files = {
  38                    "roodata.json",
  39                         "bootstrap.builder.html",
  40                         "roo.builder.html",
  41                         "roo.builder.js",
  42                         "Gir.overides",
  43                         "RooUsage.txt",
  44                         "GtkUsage.txt",
  45                         "Editors/Edit.Roo.grid.Grid.js"
  46                 };
  47         }
  48
  49
  50
  51      uint fetch_pos = 0;
  52      public void fetchStart()
  53      {
  54             if (this.fetch_pos > 0) { // only fetch one at a time...
  55                 return;
  56             }
  57             this.fetch_pos =0;
  58             this.fetchNext();
  59
  60      }
  61      public void fetchNext()
  62     {
  63         var cur = this.fetch_pos;
  64         this.fetch_pos++;
  65         this.updateProgress(this.fetch_pos); // min=0;
  66
  67
  68         if (cur > this.avail_files.length) {
  69                         this.updateProgress(0);
  70                      this.fetch_pos = 0;
  71                      return;
  72
  73                 }
  74         var target = this.avail_files[cur];
  75         var src = "http://git.roojs.org/?p=app.Builder.js;a=blob_plain;f=resources/" + target;
  76         if (target == "roodata.json") {
  77                         src = "http://git.roojs.org/?p=roojs1;a=blob_plain;f=docs/json/roodata.json";
  78                 }
  79
  80                 this.fetchResourceFrom (
  81                         src,
  82                         target,
  83                         (sess,msg) => {
  84                                 switch (target) {
  85                                         case "Gir.overides":
  86                                                 Palete.Gir.factory("Gtk").loadOverrides(true);
  87                                                 break;
  88
  89                                         case "GtkUsage.txt":
  90                                                 Palete.factory("Gtk").load();
  91                                                 break;
  92
  93                                         case "roodata.json":
  94                                                 Palete.factory("Roo").classes  = null;
  95                                                 Palete.factory("Roo").load();
  96
  97                                         default:
  98                                                 break;
  99                                 }
 100                             this.fetchNext();
 101                 });
 102                  ;
 103
 104
 105
 106
 107
 108
 109          }
 110          public void checkResources()
 111          {
 112                 bool needsload = false;
 113                 string[] res = this.avail_files;
 114
 115                 for (var i = 0; i < res.length; i++ ) {
 116
 117                         if (!FileUtils.test(
 118                                 BuilderApplication.configDirectory() + "/resources/"  + res[i],
 119                                 FileTest.EXISTS
 120                                 )) {
 121                                 needsload = true;
 122                         }
 123                 }
 124                 if (!needsload) {
 125                         return;
 126                 }
 127                 this.fetchStart();
 128          }
 129
 130
 131
 132
 133
 134     public void fetchResourceFrom(string src, string target, Soup.SessionCallback? callback)
 135     {
 136
 137                 // fetch...
 138                 print("downloading %s \nto : %s\n", src,target);
 139                 var session = new Soup.Session ();
 140                 session.user_agent = "App Builder ";
 141             var message = new Soup.Message ("GET",  src );
 142         session.queue_message (message, (sess, mess) => {
 143
 144
 145                         var tfn = BuilderApplication.configDirectory() + "/resources/" + target;
 146                         // create parent directory if needed
 147                         if (!GLibFileUtils.test (GLib.Path.get_dirname(tfn), FileTest.IS_DIR)) {
 148                                 var f =  GLib.File.new_for_path(GLib.Path.get_dirname(tfn));
 149                                 f.make_directory_with_parents ();
 150                         }
 151
 152
 153                         // set data??? - if it's binary?
 154             FileUtils.set_contents(  tfn, (string) message.response_body.data );
 155
 156             callback(sess,mess);
 157         });
 158
 159
 160     }
 161 }