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 ResourcesItem : Object {
  18         public string target;
  19         public string src;
  20         public string new_sha;
  21         public string cur_sha;
  22         public ResourcesItem(string src, string target)
  23         {
  24                 this.target = target;
  25                 this.src = src;
  26                 this.new_sha = "";
  27                 this.update_cur_sha();
  28                 print("New ResourcesItem %s (%s) => %s\n", target , this.cur_sha ,src);
  29         }
  30         public void update_cur_sha()
  31         {
  32                 if (target.contains("*")) {
  33                         return;
  34                 }
  35                 var tfn = BuilderApplication.configDirectory() + "/resources/" + target;
  36                 if (!GLib.FileUtils.test (GLib.Path.get_dirname(tfn), FileTest.IS_REGULAR)) {
  37                         return;
  38                 }
  39                 uint8[] data;
  40                 GLib.FileUtils.get_data(tfn, out data);
  41
  42                 var  file = File.new_for_path (tfn);
  43
  44                 var info = file.query_info(
  45                                  "standard::*",
  46                                 FileQueryInfoFlags.NONE
  47                 );
  48                 var csdata = new GLib.ByteArray.take("blob %s\0".printf(info.get_size().to_string()).data);
  49                 csdata.append(data);
  50
  51                 // git method... blob %d\0...string...
  52                 this.cur_sha = GLib.Checksum.compute_for_data(GLib.ChecksumType.SHA1,
  53                                 csdata.data
  54                 );
  55         }
  56
  57 }
  58
  59
  60 public class Resources : Object
  61 {
  62
  63      public signal void updateProgress(uint cur_pos);
  64
  65      static Resources singleton_val;
  66
  67
  68      Gee.ArrayList<ResourcesItem> fetch_files;
  69
  70      public static Resources singleton()
  71      {
  72         if (singleton_val == null) {
  73             singleton_val = new Resources();
  74             singleton_val.ref();
  75         }
  76         return singleton_val;
  77
  78      }
  79          public Resources ()
  80          {
  81
  82                 string[] avail_files = {
  83                         "roodata.json",
  84                         /*"bootstrap.builder.html",
  85                         "roo.builder.html",
  86                         "roo.builder.js",
  87                         "Gir.overides",
  88                         "RooUsage.txt",
  89                         "GtkUsage.txt",
  90                         "Editors/*.js"
  91                         */
  92                         "*"
  93                         //"Editors/Editor.Roo.grid.GridPanel.js"
  94                 };
  95                 this.fetch_files = new Gee.ArrayList<ResourcesItem>();
  96                 for (var i=0;i < avail_files.length; i++) {
  97                         var target = avail_files[i];
  98                         var src = "https://raw.githubusercontent.com/roojs/app.Builder.js/master/resources/" + target;
  99
 100                         if (target == "roodata.json") {
 101                                 src = "https://raw.githubusercontent.com/roojs/roojs1/master/docs/json/roodata.json";
 102                                 //src = "http://git.roojs.org/?p=roojs1;a=blob_plain;f=docs/json/roodata.json";
 103                         }
 104                         if (target.contains("*")) {
 105                                 var split = target.split("*");
 106                                 src = "https://api.github.com/repos/roojs/app.Builder.js/contents/resources/" + split[0];
 107                         }
 108
 109                         this.fetch_files.add(new ResourcesItem(src,target));
 110                 }
 111
 112
 113
 114         }
 115
 116
 117
 118      int fetch_pos = 0;
 119      public void fetchStart()
 120      {
 121             if (this.fetch_pos > 0) { // only fetch one at a time...
 122                 return;
 123             }
 124             this.fetch_pos =0;
 125             this.fetchNext();
 126
 127      }
 128      public void fetchNext()
 129     {
 130         var cur = this.fetch_pos;
 131         this.fetch_pos++;
 132         this.updateProgress(this.fetch_pos); // min=0;
 133
 134
 135         if (this.fetch_pos > this.fetch_files.size) {
 136                          this.updateProgress(0);
 137                      this.fetch_pos = 0;
 138                      return;
 139
 140                 }
 141
 142                 this.fetchResourceFrom ( this.fetch_files.get(cur) );
 143
 144
 145          }
 146          public void checkResources()
 147          {
 148                 bool needsload = false;
 149
 150
 151                 for (var i = 0; i <  this.fetch_files.size; i++ ) {
 152
 153                         if (!FileUtils.test(
 154                                 BuilderApplication.configDirectory() + "/resources/"  + this.fetch_files.get(i).target,
 155                                 FileTest.EXISTS
 156                                 )) {
 157                                 needsload = true;
 158                         }
 159                 }
 160                 if (!needsload) {
 161                         return;
 162                 }
 163                 this.fetchStart();
 164          }
 165
 166         public void parseDirectory(string json, string target)
 167         {
 168                 var pa = new Json.Parser();
 169                 pa.load_from_data(json);
 170                 var node = pa.get_root();
 171                 if (node.get_node_type () != Json.NodeType.ARRAY) {
 172                         return;
 173                         //throw new Error.INVALID_FORMAT ("Unexpected element type %s", node.type_name ());
 174                 }
 175
 176                 var split = target.split("*");
 177                 var ar = node.get_array ();
 178                 for(var i = 0; i < ar.get_length(); i++) {
 179                         var ob = ar.get_object_element(i);
 180                         var n = ob.get_string_member("name");
 181                         if (ob.get_string_member("type") == "dir") {
 182                                 continue;
 183                         }
 184                         if (split.length > 1 && !n.has_suffix(split[1])) {
 185                                 // not needed..
 186                                 continue;
 187                         }
 188                         if (this.files_has_target(split[0] + n)) {
 189                                 continue;
 190                         }
 191                         var src = "https://raw.githubusercontent.com/roojs/app.Builder.js/master/resources/" + split[0] + n;
 192                         var add = new ResourcesItem(src, split[0] + n);
 193                         add.new_sha = ob.get_string_member("sha");
 194                         this.fetch_files.add(add);
 195
 196                 }
 197         }
 198         public bool files_has_target(string target)
 199         {
 200                 for (var i = 0; i <  this.fetch_files.size; i++ ) {
 201                         if (this.fetch_files.get(i).target == target) {
 202                                 return true;
 203                         }
 204                 }
 205                 return false;
 206
 207         }
 208
 209
 210
 211
 212     public void fetchResourceFrom(ResourcesItem item)
 213     {
 214
 215                 // fetch...
 216                 print("downloading %s \nto : %s\n", item.src,item.target);
 217                 var session = new Soup.Session ();
 218                 session.user_agent = "App Builder ";
 219             var message = new Soup.Message ("GET",  item.src );
 220         session.queue_message (message, (sess, mess) => {
 221
 222                         if (item.target.contains("*")) {
 223                                 // then it's a directory listing in JSON, and we need to add any new items to our list..
 224                                 // it's used to fetch Editors (and maybe other stuff..)
 225                                 this.parseDirectory((string) message.response_body.data,item.target );
 226                                 this.fetchNext();
 227                                 return;
 228                         }
 229
 230
 231                         var tfn = BuilderApplication.configDirectory() + "/resources/" + item.target;
 232
 233
 234                         // create parent directory if needed
 235                         if (!GLib.FileUtils.test (GLib.Path.get_dirname(tfn), FileTest.IS_DIR)) {
 236                                 var f =  GLib.File.new_for_path(GLib.Path.get_dirname(tfn));
 237                                 f.make_directory_with_parents ();
 238                         }
 239
 240
 241
 242
 243                         // set data??? - if it's binary?
 244             FileUtils.set_contents(  tfn, (string) message.response_body.data );
 245
 246             switch (item.target) {
 247                                 case "Gir.overides":
 248                                         Palete.Gir.factory("Gtk").loadOverrides(true);
 249                                         break;
 250
 251                                 case "GtkUsage.txt":
 252                                         Palete.factory("Gtk").load();
 253                                         break;
 254
 255                                 case "roodata.json":
 256                                         Palete.factory("Roo").classes  = null;
 257                                         Palete.factory("Roo").load();
 258                                         break;
 259
 260                                 default:
 261                                         break;
 262                         }
 263
 264
 265
 266
 267
 268
 269             this.fetchNext();
 270
 271         });
 272
 273
 274     }
 275 }