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