js/feedlist.js

   1 var _infscroll_disable = 0;
   2 var _infscroll_request_sent = 0;
   3 var _search_query = false;
   4 var _viewfeed_last = 0;
   5
   6 var counters_last_request = 0;
   7
   8 function viewCategory(cat) {
   9         viewfeed(cat, '', true);
  10         return false;
  11 }
  12
  13 function loadMoreHeadlines() {
  14         try {
  15                 console.log("loadMoreHeadlines");
  16
  17                 var offset = 0;
  18
  19                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  20                 var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  21                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  22                 var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  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 = unread_in_buffer;
  34                 } else if (_search_query) {
  35                         offset = num_all;
  36                 } else if (view_mode == "adaptive") {
  37                         if (num_unread > 0)
  38                                 offset = unread_in_buffer;
  39                         else
  40                                 offset = num_all;
  41                 } else {
  42                         offset = num_all;
  43                 }
  44
  45                 console.log("offset: " + offset);
  46
  47                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
  48
  49         } catch (e) {
  50                 exception_error("viewNextFeedPage", e);
  51         }
  52 }
  53
  54
  55 function viewfeed(feed, method, is_cat, offset, background, infscroll_req) {
  56         try {
  57                 if (is_cat == undefined)
  58                         is_cat = false;
  59                 else
  60                         is_cat = !!is_cat;
  61
  62                 if (method == undefined) method = '';
  63                 if (offset == undefined) offset = 0;
  64                 if (background == undefined) background = false;
  65                 if (infscroll_req == undefined) infscroll_req = false;
  66
  67                 last_requested_article = 0;
  68
  69                 var cached_headlines = false;
  70
  71                 if (feed == getActiveFeedId() && activeFeedIsCat() == is_cat) {
  72                         cache_delete("feed:" + feed + ":" + is_cat);
  73                 } else {
  74                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  75
  76                         if (!background && _search_query) _search_query = false;
  77
  78                         // switching to a different feed, we might as well catchup stuff visible
  79                         // in headlines buffer (if any)
  80                         // disabled for now because this behavior is considered confusing -fox
  81                         /* if (!background && isCdmMode() && getInitParam("cdm_auto_catchup") == 1 && parseInt(getActiveFeedId()) > 0) {
  82
  83                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
  84                                         function(child) {
  85                                                 var hf = $("headlines-frame");
  86
  87                                                 if (hf.scrollTop + hf.offsetHeight >=
  88                                                                 child.offsetTop + child.offsetHeight) {
  89
  90                                                         var id = child.id.replace("RROW-", "");
  91
  92                                                         if (catchup_id_batch.indexOf(id) == -1)
  93                                                                 catchup_id_batch.push(id);
  94
  95                                                 }
  96
  97                                                 if (catchup_id_batch.length > 0) {
  98                                                         window.clearTimeout(catchup_timeout_id);
  99
 100                                                         if (!_infscroll_request_sent) {
 101                                                                 catchup_timeout_id = window.setTimeout('catchupBatchedArticles()',
 102                                                                         2000);
 103                                                         }
 104                                                 }
 105
 106                                         });
 107                         } */
 108                 }
 109
 110                 if (!background) {
 111                         _viewfeed_last = get_timestamp();
 112
 113                         if (getActiveFeedId() != feed || offset == 0) {
 114                                 active_post_id = 0;
 115                                 _infscroll_disable = 0;
 116                         }
 117
 118                         if (!offset && !method && cached_headlines && !background) {
 119                                 try {
 120                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
 121                                         return;
 122                                 } catch (e) {
 123                                         console.warn("render_local_headlines failed: " + e);
 124                                 }
 125                         }
 126
 127                         if (offset != 0 && !method) {
 128                                 var timestamp = get_timestamp();
 129
 130                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 131                                         //console.log("infscroll request in progress, aborting");
 132                                         return;
 133                                 }
 134
 135                                 _infscroll_request_sent = timestamp;
 136                         }
 137
 138                         hideAuxDlg();
 139                 }
 140
 141                 Form.enable("main_toolbar_form");
 142
 143                 var toolbar_query = Form.serialize("main_toolbar_form");
 144
 145                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
 146                         toolbar_query;
 147
 148                 if (method) {
 149                         query = query + "&m=" + param_escape(method);
 150                 }
 151
 152                 if (!background) {
 153                         if (_search_query) {
 154                                 force_nocache = true;
 155                                 query = query + "&" + _search_query;
 156                                 //_search_query = false;
 157                         }
 158
 159                         if (offset != 0) {
 160                                 query = query + "&skip=" + offset;
 161
 162                                 // to prevent duplicate feed titles when showing grouped vfeeds
 163                                 if (vgroup_last_feed) {
 164                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 165                                 }
 166                         } else {
 167                                 if (!method && !is_cat && feed == getActiveFeedId()) {
 168                                         query = query + "&m=ForceUpdate";
 169                                 }
 170                         }
 171
 172                         Form.enable("main_toolbar_form");
 173
 174                         if (!offset)
 175                                 if (!is_cat) {
 176                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 177                                                 notify_progress("Loading, please wait...", true);
 178                                 } else {
 179                                         notify_progress("Loading, please wait...", true);
 180                                 }
 181                 }
 182
 183                 query += "&cat=" + is_cat;
 184
 185                 console.log(query);
 186
 187                 new Ajax.Request("backend.php", {
 188                         parameters: query,
 189                         onComplete: function(transport) {
 190                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 191                                 headlines_callback2(transport, offset, background, infscroll_req);
 192                         } });
 193
 194         } catch (e) {
 195                 exception_error("viewfeed", e);
 196         }
 197 }
 198
 199 function feedlist_init() {
 200         try {
 201                 console.log("in feedlist init");
 202
 203                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 204                 document.onkeydown = hotkey_handler;
 205                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 206
 207                  if (!getActiveFeedId())
 208                          viewfeed(-3);
 209
 210                 console.log("T:" +
 211                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 212
 213                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 214
 215                 request_counters(true);
 216                 timeout();
 217                 setTimeout("precache_headlines_idle()", 15000);
 218
 219         } catch (e) {
 220                 exception_error("feedlist/init", e);
 221         }
 222 }
 223
 224
 225 function request_counters(force) {
 226         try {
 227                 var date = new Date();
 228                 var timestamp = Math.round(date.getTime() / 1000);
 229
 230                 if (force || timestamp - counters_last_request > 15) {
 231                         console.log("scheduling request of counters...");
 232
 233                         counters_last_request = timestamp;
 234
 235                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 236
 237                         if (!force)
 238                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 239
 240                         console.log(query);
 241
 242                         new Ajax.Request("backend.php", {
 243                                 parameters: query,
 244                                 onComplete: function(transport) {
 245                                         try {
 246                                                 handle_rpc_json(transport);
 247                                         } catch (e) {
 248                                                 exception_error("request_counters", e);
 249                                         }
 250                                 } });
 251
 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                 for (var l = 0; l < elems.length; l++) {
 281
 282                         var id = elems[l].id;
 283                         var kind = elems[l].kind;
 284                         var ctr = parseInt(elems[l].counter);
 285                         var error = elems[l].error;
 286                         var has_img = elems[l].has_img;
 287                         var updated = elems[l].updated;
 288
 289                         if (id == "global-unread") {
 290                                 global_unread = ctr;
 291                                 updateTitle();
 292                                 continue;
 293                         }
 294
 295                         if (id == "subscribed-feeds") {
 296                                 feeds_found = ctr;
 297                                 continue;
 298                         }
 299
 300                         // TODO: enable new content notification for categories
 301
 302                         if (!activeFeedIsCat() && id == getActiveFeedId()
 303                                         && ctr > getFeedUnread(id) && scheduled_call) {
 304                                 displayNewContentPrompt(id);
 305                         }
 306
 307                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 308                                         (kind == "cat")) {
 309
 310                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 311                         }
 312
 313                         setFeedUnread(id, (kind == "cat"), ctr);
 314
 315                         if (kind != "cat") {
 316                                 setFeedValue(id, false, 'error', error);
 317                                 setFeedValue(id, false, 'updated', updated);
 318
 319                                 if (id > 0) {
 320                                         if (has_img) {
 321                                                 setFeedIcon(id, false,
 322                                                         getInitParam("icons_url") + "/" + id + ".ico");
 323                                         } else {
 324                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 325                                         }
 326                                 }
 327                         }
 328                 }
 329
 330                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 331
 332         } catch (e) {
 333                 exception_error("parse_counters", e);
 334         }
 335 }
 336
 337 function getFeedUnread(feed, is_cat) {
 338         try {
 339                 var tree = dijit.byId("feedTree");
 340
 341                 if (tree && tree.model)
 342                         return tree.model.getFeedUnread(feed, is_cat);
 343
 344         } catch (e) {
 345                 //
 346         }
 347
 348         return -1;
 349 }
 350
 351 function getFeedCategory(feed) {
 352         try {
 353                 var tree = dijit.byId("feedTree");
 354
 355                 if (tree && tree.model)
 356                         return tree.getFeedCategory(feed);
 357
 358         } catch (e) {
 359                 //
 360         }
 361
 362         return false;
 363 }
 364
 365 function hideOrShowFeeds(hide) {
 366         var tree = dijit.byId("feedTree");
 367
 368         if (tree)
 369                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 370 }
 371
 372 function getFeedName(feed, is_cat) {
 373         var tree = dijit.byId("feedTree");
 374
 375         if (tree && tree.model)
 376                 return tree.model.getFeedValue(feed, is_cat, 'name');
 377 }
 378
 379 function getFeedValue(feed, is_cat, key) {
 380         try {
 381                 var tree = dijit.byId("feedTree");
 382
 383                 if (tree && tree.model)
 384                         return tree.model.getFeedValue(feed, is_cat, key);
 385
 386         } catch (e) {
 387                 //
 388         }
 389         return '';
 390 }
 391
 392 function setFeedUnread(feed, is_cat, unread) {
 393         try {
 394                 var tree = dijit.byId("feedTree");
 395
 396                 if (tree && tree.model)
 397                         return tree.model.setFeedUnread(feed, is_cat, unread);
 398
 399         } catch (e) {
 400                 exception_error("setFeedUnread", e);
 401         }
 402 }
 403
 404 function setFeedValue(feed, is_cat, key, value) {
 405         try {
 406                 var tree = dijit.byId("feedTree");
 407
 408                 if (tree && tree.model)
 409                         return tree.model.setFeedValue(feed, is_cat, key, value);
 410
 411         } catch (e) {
 412                 //
 413         }
 414 }
 415
 416 function selectFeed(feed, is_cat) {
 417         try {
 418                 var tree = dijit.byId("feedTree");
 419
 420                 if (tree) return tree.selectFeed(feed, is_cat);
 421
 422         } catch (e) {
 423                 exception_error("selectFeed", e);
 424         }
 425 }
 426
 427 function setFeedIcon(feed, is_cat, src) {
 428         try {
 429                 var tree = dijit.byId("feedTree");
 430
 431                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 432
 433         } catch (e) {
 434                 exception_error("setFeedIcon", e);
 435         }
 436 }
 437
 438 function setFeedExpandoIcon(feed, is_cat, src) {
 439         try {
 440                 var tree = dijit.byId("feedTree");
 441
 442                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 443
 444         } catch (e) {
 445                 exception_error("setFeedIcon", e);
 446         }
 447         return false;
 448 }
 449
 450 function getNextUnreadFeed(feed, is_cat) {
 451         try {
 452                 var tree = dijit.byId("feedTree");
 453                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 454
 455                 if (nuf)
 456                         return tree.model.store.getValue(nuf, 'bare_id');
 457
 458         } catch (e) {
 459                 exception_error("getNextUnreadFeed", e);
 460         }
 461 }
 462
 463 function catchupCurrentFeed() {
 464         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 465 }
 466
 467 function catchupFeedInGroup(id) {
 468         try {
 469
 470                 var title = getFeedName(id);
 471
 472                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 473
 474                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 475                         return viewCurrentFeed('MarkAllReadGR:' + id);
 476                 }
 477
 478         } catch (e) {
 479                 exception_error("catchupFeedInGroup", e);
 480         }
 481 }
 482
 483 function catchupFeed(feed, is_cat) {
 484         try {
 485                 if (is_cat == undefined) is_cat = false;
 486
 487                 var str = __("Mark all articles in %s as read?");
 488                 var fn = getFeedName(feed, is_cat);
 489
 490                 str = str.replace("%s", fn);
 491
 492                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 493                         return;
 494                 }
 495
 496                 var max_id = 0;
 497
 498                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 499                         $$("#headlines-frame > div[id*=RROW]").each(
 500                                 function(child) {
 501                                         var id = parseInt(child.id.replace("RROW-", ""));
 502
 503                                         if (id > max_id) max_id = id;
 504                                 }
 505                         );
 506                 }
 507
 508                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 509                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 510
 511                 console.log(catchup_query);
 512
 513                 notify_progress("Loading, please wait...", true);
 514
 515                 new Ajax.Request("backend.php", {
 516                         parameters: catchup_query,
 517                         onComplete: function(transport) {
 518                                         handle_rpc_json(transport);
 519
 520                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 521
 522                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 523                                                         function(child) {
 524                                                                 child.removeClassName("Unread");
 525                                                         }
 526                                                 );
 527                                         }
 528
 529                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 530
 531                                         if (show_next_feed) {
 532                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 533
 534                                                 if (nuf) {
 535                                                         viewfeed(nuf, '', is_cat);
 536                                                 }
 537                                         }
 538
 539                                         notify("");
 540                                 } });
 541
 542         } catch (e) {
 543                 exception_error("catchupFeed", e);
 544         }
 545 }
 546
 547 function decrementFeedCounter(feed, is_cat) {
 548         try {
 549                 var ctr = getFeedUnread(feed, is_cat);
 550
 551                 if (ctr > 0) {
 552                         setFeedUnread(feed, is_cat, ctr - 1);
 553                         global_unread = global_unread - 1;
 554                         updateTitle();
 555
 556                         if (!is_cat) {
 557                                 var cat = parseInt(getFeedCategory(feed));
 558
 559                                 if (!isNaN(cat)) {
 560                                         ctr = getFeedUnread(cat, true);
 561
 562                                         if (ctr > 0) {
 563                                                 setFeedUnread(cat, true, ctr - 1);
 564                                         }
 565                                 }
 566                         }
 567                 }
 568
 569                 cache_delete("feed:" + feed + ":" + is_cat);
 570
 571         } catch (e) {
 572                 exception_error("decrement_feed_counter", e);
 573         }
 574 }