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             singleton_val.ref();
  31         }
  32         return singleton_val;
  33
  34      }
  35          public Resources ()
  36          {
  37
  38            this.avail_files = {
  39                    "roodata.json",
  40                         "bootstrap.builder.html",
  41                         "roo.builder.html",
  42                         "roo.builder.js",
  43                         "Gir.overides",
  44                         "RooUsage.txt",
  45                         "GtkUsage.txt",
  46                         "Editors/Edit.Roo.grid.Grid.js"
  47                 };
  48         }
  49
  50
  51
  52      uint fetch_pos = 0;
  53      public void fetchStart()
  54      {
  55             if (this.fetch_pos > 0) { // only fetch one at a time...
  56                 return;
  57             }
  58             this.fetch_pos =0;
  59             this.fetchNext();
  60
  61      }
  62      public void fetchNext()
  63     {
  64         var cur = this.fetch_pos;
  65         this.fetch_pos++;
  66         this.updateProgress(this.fetch_pos); // min=0;
  67
  68
  69         if (cur > this.avail_files.length) {
  70                         this.updateProgress(0);
  71                      this.fetch_pos = 0;
  72                      return;
  73
  74                 }
  75         var target = this.avail_files[cur];
  76         var src = "http://git.roojs.org/?p=app.Builder.js;a=blob_plain;f=resources/" + target;
  77         if (target == "roodata.json") {
  78                         src = "http://git.roojs.org/?p=roojs1;a=blob_plain;f=docs/json/roodata.json";
  79                 }
  80
  81                 this.fetchResourceFrom (
  82                         src,
  83                         target,
  84                         (sess,msg) => {
  85                                 switch (target) {
  86                                         case "Gir.overides":
  87                                                 Palete.Gir.factory("Gtk").loadOverrides(true);
  88                                                 break;
  89
  90                                         case "GtkUsage.txt":
  91                                                 Palete.factory("Gtk").load();
  92                                                 break;
  93
  94                                         case "roodata.json":
  95                                                 Palete.factory("Roo").classes  = null;
  96                                                 Palete.factory("Roo").load();
  97                                                 break;
  98
  99                                         default:
 100                                                 break;
 101                                 }
 102                             this.fetchNext();
 103                 });
 104                  ;
 105
 106
 107
 108
 109
 110
 111          }
 112          public void checkResources()
 113          {
 114                 bool needsload = false;
 115                 string[] res = this.avail_files;
 116
 117                 for (var i = 0; i < res.length; i++ ) {
 118
 119                         if (!FileUtils.test(
 120                                 BuilderApplication.configDirectory() + "/resources/"  + res[i],
 121                                 FileTest.EXISTS
 122                                 )) {
 123                                 needsload = true;
 124                         }
 125                 }
 126                 if (!needsload) {
 127                         return;
 128                 }
 129                 this.fetchStart();
 130          }
 131
 132
 133
 134
 135
 136     public void fetchResourceFrom(string src, string target, Soup.SessionCallback? callback)
 137     {
 138
 139                 // fetch...
 140                 print("downloading %s \nto : %s\n", src,target);
 141                 var session = new Soup.Session ();
 142                 session.user_agent = "App Builder ";
 143             var message = new Soup.Message ("GET",  src );
 144         session.queue_message (message, (sess, mess) => {
 145
 146
 147                         var tfn = BuilderApplication.configDirectory() + "/resources/" + target;
 148                         // create parent directory if needed
 149                         if (!GLib.FileUtils.test (GLib.Path.get_dirname(tfn), FileTest.IS_DIR)) {
 150                                 var f =  GLib.File.new_for_path(GLib.Path.get_dirname(tfn));
 151                                 f.make_directory_with_parents ();
 152                         }
 153
 154
 155                         // set data??? - if it's binary?
 156             FileUtils.set_contents(  tfn, (string) message.response_body.data );
 157
 158             callback(sess,mess);
 159         });
 160
 161
 162     }
 163 }