feedlist.js

   1 var _infscroll_disable = 0;
   2 var _infscroll_request_sent = 0;
   3 var _search_query = false;
   4
   5 var counter_timeout_id = false;
   6
   7 var counters_last_request = 0;
   8
   9 function viewCategory(cat) {
  10         viewfeed(cat, '', true);
  11         return false;
  12 }
  13
  14 function loadMoreHeadlines() {
  15         try {
  16                 console.log("loadMoreHeadlines");
  17
  18                 var offset = 0;
  19
  20                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  21                 var num_unread = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  22                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  23
  24                 // TODO implement marked & published
  25
  26                 if (view_mode == "marked") {
  27                         console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  28                         offset = num_all;
  29                 } else if (view_mode == "published") {
  30                         console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  31                         offset = num_all;
  32                 } else if (view_mode == "unread") {
  33                         offset = num_unread;
  34                 } else if (view_mode == "adaptive") {
  35                         if (num_unread > 0)
  36                                 offset = num_unread;
  37                         else
  38                                 offset = num_all;
  39                 } else {
  40                         offset = num_all;
  41                 }
  42
  43                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset);
  44
  45         } catch (e) {
  46                 exception_error("viewNextFeedPage", e);
  47         }
  48 }
  49
  50
  51 function viewfeed(feed, subop, is_cat, offset, background) {
  52         try {
  53                 if (is_cat == undefined)
  54                         is_cat = false;
  55                 else
  56                         is_cat = !!is_cat;
  57
  58                 if (subop == undefined) subop = '';
  59                 if (offset == undefined) offset = 0;
  60                 if (background == undefined) background = false;
  61
  62                 last_requested_article = 0;
  63
  64                 var cached_headlines = false;
  65
  66                 if (feed == getActiveFeedId())
  67                         cache_delete("feed:" + feed + ":" + is_cat);
  68                 else
  69                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  70
  71                 if (offset == 0)
  72                         dijit.byId("content-tabs").selectChild(
  73                                 dijit.byId("content-tabs").getChildren()[0]);
  74
  75                 var force_nocache = false;
  76
  77                 if (!background) {
  78                         if (getActiveFeedId() != feed || offset == 0) {
  79                                 active_post_id = 0;
  80                                 _infscroll_disable = 0;
  81                         }
  82
  83                         if (!offset && !subop && cached_headlines && !background) {
  84                                 try {
  85                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
  86                                         return;
  87                                 } catch (e) {
  88                                         console.warn("render_local_headlines failed: " + e);
  89                                 }
  90                         }
  91
  92                         if (offset != 0 && !subop) {
  93                                 var date = new Date();
  94                                 var timestamp = Math.round(date.getTime() / 1000);
  95
  96                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
  97                                         //console.log("infscroll request in progress, aborting");
  98                                         return;
  99                                 }
 100
 101                                 _infscroll_request_sent = timestamp;
 102                         }
 103
 104                         hideAuxDlg();
 105                 }
 106
 107                 Form.enable("main_toolbar_form");
 108
 109                 var toolbar_query = Form.serialize("main_toolbar_form");
 110
 111                 var query = "?op=viewfeed&feed=" + feed + "&" +
 112                         toolbar_query + "&subop=" + param_escape(subop);
 113
 114                 if (!background) {
 115                         if (_search_query) {
 116                                 force_nocache = true;
 117                                 query = query + "&" + _search_query;
 118                                 _search_query = false;
 119                         }
 120
 121                         if (subop == "MarkAllRead") {
 122
 123                                 var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 124
 125                                 if (show_next_feed) {
 126                                         var nuf = getNextUnreadFeed(feed, is_cat);
 127
 128                                         if (nuf) {
 129                                                 var cached_nuf = cache_get("feed:" + nuf + ":false");
 130
 131                                                 if (cached_nuf) {
 132
 133                                                         render_local_headlines(nuf, false, JSON.parse(cached_nuf));
 134
 135                                                         var catchup_query = "?op=rpc&subop=catchupFeed&feed_id=" +
 136                                                                 feed + "&is_cat=" + is_cat;
 137
 138                                                         console.log(catchup_query);
 139
 140                                                         new Ajax.Request("backend.php", {
 141                                                                 parameters: catchup_query,
 142                                                                 onComplete: function(transport) {
 143                                                                         handle_rpc_json(transport);
 144                                                                 } });
 145
 146                                                         return;
 147                                                 } else {
 148                                                         query += "&nuf=" + param_escape(nuf);
 149                                                 }
 150                                         }
 151                                 }
 152                         }
 153
 154                         if (offset != 0) {
 155                                 query = query + "&skip=" + offset;
 156
 157                                 // to prevent duplicate feed titles when showing grouped vfeeds
 158                                 if (vgroup_last_feed) {
 159                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 160                                 }
 161                         }
 162
 163                         Form.enable("main_toolbar_form");
 164
 165                         if (!offset)
 166                                 if (!is_cat) {
 167                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 168                                                 notify_progress("Loading, please wait...", true);
 169                                 } else {
 170                                         notify_progress("Loading, please wait...", true);
 171                                 }
 172                 }
 173
 174                 query += "&cat=" + is_cat;
 175
 176                 console.log(query);
 177
 178                 new Ajax.Request("backend.php", {
 179                         parameters: query,
 180                         onComplete: function(transport) {
 181                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 182                                 headlines_callback2(transport, offset, background);
 183                         } });
 184
 185         } catch (e) {
 186                 exception_error("viewfeed", e);
 187         }
 188 }
 189
 190 function feedlist_init() {
 191         try {
 192                 console.log("in feedlist init");
 193
 194                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 195                 document.onkeydown = hotkey_handler;
 196                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 197
 198                  if (!getActiveFeedId()) {
 199                         setTimeout("viewfeed(-3)", 100);
 200                 }
 201
 202                 console.log("T:" +
 203                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 204
 205                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 206
 207                 setTimeout("timeout()", 5000);
 208                 setTimeout("precache_headlines_idle()", 3000);
 209
 210         } catch (e) {
 211                 exception_error("feedlist/init", e);
 212         }
 213 }
 214
 215 function request_counters_real() {
 216         try {
 217                 console.log("requesting counters...");
 218
 219                 var query = "?op=rpc&subop=getAllCounters&seq=" + next_seq();
 220
 221                 query = query + "&omode=flc";
 222
 223                 new Ajax.Request("backend.php", {
 224                         parameters: query,
 225                         onComplete: function(transport) {
 226                                 try {
 227                                         handle_rpc_json(transport);
 228                                 } catch (e) {
 229                                         exception_error("viewfeed/getcounters", e);
 230                                 }
 231                         } });
 232
 233         } catch (e) {
 234                 exception_error("request_counters_real", e);
 235         }
 236 }
 237
 238
 239 function request_counters() {
 240
 241         try {
 242
 243                 if (getInitParam("bw_limit") == "1") return;
 244
 245                 var date = new Date();
 246                 var timestamp = Math.round(date.getTime() / 1000);
 247
 248                 if (timestamp - counters_last_request > 5) {
 249                         console.log("scheduling request of counters...");
 250
 251                         window.clearTimeout(counter_timeout_id);
 252                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 253
 254                         counters_last_request = timestamp;
 255                 } else {
 256                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 257                 }
 258
 259         } catch (e) {
 260                 exception_error("request_counters", e);
 261         }
 262 }
 263
 264 function displayNewContentPrompt(id) {
 265         try {
 266
 267                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 268                         __("New articles available in this feed (click to show)") + "</a>";
 269
 270                 msg = msg.replace("%s", getFeedName(id));
 271
 272                 $('auxDlg').innerHTML = msg;
 273
 274                 new Effect.Appear('auxDlg', {duration : 0.5});
 275
 276         } catch (e) {
 277                 exception_error("displayNewContentPrompt", e);
 278         }
 279 }
 280
 281 function parse_counters(elems, scheduled_call) {
 282         try {
 283
 284                 var feeds_found = 0;
 285
 286                 for (var l = 0; l < elems.length; l++) {
 287
 288                         var id = elems[l].id
 289                         var kind = elems[l].kind;
 290                         var ctr = parseInt(elems[l].counter)
 291                         var error = elems[l].error;
 292                         var has_img = elems[l].has_img;
 293                         var updated = elems[l].updated;
 294                         var title = elems[l].title;
 295
 296                         if (id == "global-unread") {
 297                                 global_unread = ctr;
 298                                 updateTitle();
 299                                 continue;
 300                         }
 301
 302                         if (id == "subscribed-feeds") {
 303                                 feeds_found = ctr;
 304                                 continue;
 305                         }
 306
 307                         var treeItem;
 308
 309                         // TODO: enable new content notification for categories
 310
 311                         if (!activeFeedIsCat() && id == getActiveFeedId()
 312                                         && ctr > getFeedUnread(id) && scheduled_call) {
 313                                 displayNewContentPrompt(id);
 314                         }
 315
 316                         if (getFeedUnread(id, (kind == "cat")) != ctr)
 317                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 318
 319                         setFeedUnread(id, (kind == "cat"), ctr);
 320
 321                         if (kind != "cat") {
 322                                 setFeedValue(id, false, 'error', error);
 323                                 setFeedValue(id, false, 'updated', updated);
 324
 325                                 if (id > 0) {
 326                                         if (has_img) {
 327                                                 setFeedIcon(id, false,
 328                                                         getInitParam("icons_url") + "/" + id + ".ico");
 329                                         } else {
 330                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 331                                         }
 332                                 }
 333                         }
 334                 }
 335
 336                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 337
 338         } catch (e) {
 339                 exception_error("parse_counters", e);
 340         }
 341 }
 342
 343 function getFeedUnread(feed, is_cat) {
 344         try {
 345                 var tree = dijit.byId("feedTree");
 346
 347                 if (tree && tree.model)
 348                         return tree.model.getFeedUnread(feed, is_cat);
 349
 350         } catch (e) {
 351                 //
 352         }
 353
 354         return -1;
 355 }
 356
 357 function resort_feedlist() {
 358         console.warn("resort_feedlist: function not implemented");
 359 }
 360
 361 function hideOrShowFeeds(hide) {
 362         var tree = dijit.byId("feedTree");
 363
 364         if (tree)
 365                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 366 }
 367
 368 function getFeedName(feed, is_cat) {
 369         var tree = dijit.byId("feedTree");
 370
 371         if (tree && tree.model)
 372                 return tree.model.getFeedValue(feed, is_cat, 'name');
 373 }
 374
 375 function getFeedValue(feed, is_cat, key) {
 376         try {
 377                 var tree = dijit.byId("feedTree");
 378
 379                 if (tree && tree.model)
 380                         return tree.model.getFeedValue(feed, is_cat, key);
 381
 382         } catch (e) {
 383                 //
 384         }
 385         return '';
 386 }
 387
 388 function setFeedUnread(feed, is_cat, unread) {
 389         try {
 390                 var tree = dijit.byId("feedTree");
 391
 392                 if (tree && tree.model)
 393                         return tree.model.setFeedUnread(feed, is_cat, unread);
 394
 395         } catch (e) {
 396                 exception_error("setFeedUnread", e);
 397         }
 398 }
 399
 400 function setFeedValue(feed, is_cat, key, value) {
 401         try {
 402                 var tree = dijit.byId("feedTree");
 403
 404                 if (tree && tree.model)
 405                         return tree.model.setFeedValue(feed, is_cat, key, value);
 406
 407         } catch (e) {
 408                 //
 409         }
 410 }
 411
 412 function selectFeed(feed, is_cat) {
 413         try {
 414                 var tree = dijit.byId("feedTree");
 415
 416                 if (tree) return tree.selectFeed(feed, is_cat);
 417
 418         } catch (e) {
 419                 exception_error("selectFeed", e);
 420         }
 421 }
 422
 423 function setFeedIcon(feed, is_cat, src) {
 424         try {
 425                 var tree = dijit.byId("feedTree");
 426
 427                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 428
 429         } catch (e) {
 430                 exception_error("setFeedIcon", e);
 431         }
 432 }
 433
 434 function setFeedExpandoIcon(feed, is_cat, src) {
 435         try {
 436                 var tree = dijit.byId("feedTree");
 437
 438                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 439
 440         } catch (e) {
 441                 exception_error("setFeedIcon", e);
 442         }
 443         return false;
 444 }
 445
 446 function getNextUnreadFeed(feed, is_cat) {
 447         try {
 448                 var tree = dijit.byId("feedTree");
 449                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 450
 451                 if (nuf)
 452                         return tree.model.store.getValue(nuf, 'bare_id');
 453
 454         } catch (e) {
 455                 exception_error("getNextUnreadFeed", e);
 456         }
 457 }
 458