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 counter_timeout_id = false;
   7
   8 var counters_last_request = 0;
   9
  10 function viewCategory(cat) {
  11         viewfeed(cat, '', true);
  12         return false;
  13 }
  14
  15 function loadMoreHeadlines() {
  16         try {
  17                 console.log("loadMoreHeadlines");
  18
  19                 var offset = 0;
  20
  21                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  22                 var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  23                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  24                 var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  25
  26                 // TODO implement marked & published
  27
  28                 if (view_mode == "marked") {
  29                         console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  30                         offset = num_all;
  31                 } else if (view_mode == "published") {
  32                         console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  33                         offset = num_all;
  34                 } else if (view_mode == "unread") {
  35                         offset = unread_in_buffer;
  36                 } else if (_search_query) {
  37                         offset = num_all;
  38                 } else if (view_mode == "adaptive") {
  39                         if (num_unread > 0)
  40                                 offset = unread_in_buffer;
  41                         else
  42                                 offset = num_all;
  43                 } else {
  44                         offset = num_all;
  45                 }
  46
  47                 console.log("offset: " + offset);
  48
  49                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
  50
  51         } catch (e) {
  52                 exception_error("viewNextFeedPage", e);
  53         }
  54 }
  55
  56
  57 function viewfeed(feed, method, is_cat, offset, background, infscroll_req) {
  58         try {
  59                 if (is_cat == undefined)
  60                         is_cat = false;
  61                 else
  62                         is_cat = !!is_cat;
  63
  64                 if (method == undefined) method = '';
  65                 if (offset == undefined) offset = 0;
  66                 if (background == undefined) background = false;
  67                 if (infscroll_req == undefined) infscroll_req = false;
  68
  69                 last_requested_article = 0;
  70
  71                 var cached_headlines = false;
  72
  73                 if (feed == getActiveFeedId() && activeFeedIsCat() == is_cat) {
  74                         cache_delete("feed:" + feed + ":" + is_cat);
  75                 } else {
  76                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  77
  78                         if (!background && _search_query) _search_query = false;
  79
  80                         // switching to a different feed, we might as well catchup stuff visible
  81                         // in headlines buffer (if any)
  82                         // disabled for now because this behavior is considered confusing -fox
  83                         /* if (!background && isCdmMode() && getInitParam("cdm_auto_catchup") == 1 && parseInt(getActiveFeedId()) > 0) {
  84
  85                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
  86                                         function(child) {
  87                                                 var hf = $("headlines-frame");
  88
  89                                                 if (hf.scrollTop + hf.offsetHeight >=
  90                                                                 child.offsetTop + child.offsetHeight) {
  91
  92                                                         var id = child.id.replace("RROW-", "");
  93
  94                                                         if (catchup_id_batch.indexOf(id) == -1)
  95                                                                 catchup_id_batch.push(id);
  96
  97                                                 }
  98
  99                                                 if (catchup_id_batch.length > 0) {
 100                                                         window.clearTimeout(catchup_timeout_id);
 101
 102                                                         if (!_infscroll_request_sent) {
 103                                                                 catchup_timeout_id = window.setTimeout('catchupBatchedArticles()',
 104                                                                         2000);
 105                                                         }
 106                                                 }
 107
 108                                         });
 109                         } */
 110                 }
 111
 112                 if (offset == 0 && !background)
 113                         dijit.byId("content-tabs").selectChild(
 114                                 dijit.byId("content-tabs").getChildren()[0]);
 115
 116                 if (!background) {
 117                         _viewfeed_last = get_timestamp();
 118
 119                         if (getActiveFeedId() != feed || offset == 0) {
 120                                 active_post_id = 0;
 121                                 _infscroll_disable = 0;
 122                         }
 123
 124                         if (!offset && !method && cached_headlines && !background) {
 125                                 try {
 126                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
 127                                         return;
 128                                 } catch (e) {
 129                                         console.warn("render_local_headlines failed: " + e);
 130                                 }
 131                         }
 132
 133                         if (offset != 0 && !method) {
 134                                 var timestamp = get_timestamp();
 135
 136                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 137                                         //console.log("infscroll request in progress, aborting");
 138                                         return;
 139                                 }
 140
 141                                 _infscroll_request_sent = timestamp;
 142                         }
 143
 144                         hideAuxDlg();
 145                 }
 146
 147                 Form.enable("main_toolbar_form");
 148
 149                 var toolbar_query = Form.serialize("main_toolbar_form");
 150
 151                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
 152                         toolbar_query;
 153
 154                 if (method) {
 155                         query = query + "&m=" + param_escape(method);
 156                 }
 157
 158                 if (!background) {
 159                         if (_search_query) {
 160                                 force_nocache = true;
 161                                 query = query + "&" + _search_query;
 162                                 //_search_query = false;
 163                         }
 164
 165                         if (offset != 0) {
 166                                 query = query + "&skip=" + offset;
 167
 168                                 // to prevent duplicate feed titles when showing grouped vfeeds
 169                                 if (vgroup_last_feed) {
 170                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 171                                 }
 172                         } else {
 173                                 if (!method && !is_cat && feed == getActiveFeedId()) {
 174                                         query = query + "&m=ForceUpdate";
 175                                 }
 176                         }
 177
 178                         Form.enable("main_toolbar_form");
 179
 180                         if (!offset)
 181                                 if (!is_cat) {
 182                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 183                                                 notify_progress("Loading, please wait...", true);
 184                                 } else {
 185                                         notify_progress("Loading, please wait...", true);
 186                                 }
 187                 }
 188
 189                 query += "&cat=" + is_cat;
 190
 191                 console.log(query);
 192
 193                 new Ajax.Request("backend.php", {
 194                         parameters: query,
 195                         onComplete: function(transport) {
 196                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 197                                 headlines_callback2(transport, offset, background, infscroll_req);
 198                         } });
 199
 200         } catch (e) {
 201                 exception_error("viewfeed", e);
 202         }
 203 }
 204
 205 function feedlist_init() {
 206         try {
 207                 console.log("in feedlist init");
 208
 209                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 210                 document.onkeydown = hotkey_handler;
 211                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 212
 213                  if (!getActiveFeedId())
 214                          viewfeed(-3);
 215
 216                 console.log("T:" +
 217                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 218
 219                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 220
 221                 setTimeout("timeout()", 5000);
 222                 setTimeout("precache_headlines_idle()", 15000);
 223
 224         } catch (e) {
 225                 exception_error("feedlist/init", e);
 226         }
 227 }
 228
 229 function request_counters_real() {
 230         try {
 231                 console.log("requesting counters...");
 232
 233                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 234
 235                 query = query + "&omode=flc";
 236
 237                 new Ajax.Request("backend.php", {
 238                         parameters: query,
 239                         onComplete: function(transport) {
 240                                 try {
 241                                         handle_rpc_json(transport);
 242                                 } catch (e) {
 243                                         exception_error("viewfeed/getcounters", e);
 244                                 }
 245                         } });
 246
 247         } catch (e) {
 248                 exception_error("request_counters_real", e);
 249         }
 250 }
 251
 252
 253 function request_counters() {
 254
 255         try {
 256
 257                 //if (getInitParam("bw_limit") == "1") return;
 258
 259                 var date = new Date();
 260                 var timestamp = Math.round(date.getTime() / 1000);
 261
 262                 if (timestamp - counters_last_request > 5) {
 263                         console.log("scheduling request of counters...");
 264
 265                         window.clearTimeout(counter_timeout_id);
 266                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 267
 268                         counters_last_request = timestamp;
 269                 } else {
 270                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 271                 }
 272
 273         } catch (e) {
 274                 exception_error("request_counters", e);
 275         }
 276 }
 277
 278 function displayNewContentPrompt(id) {
 279         try {
 280
 281                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 282                         __("New articles available in this feed (click to show)") + "</a>";
 283
 284                 msg = msg.replace("%s", getFeedName(id));
 285
 286                 $('auxDlg').innerHTML = msg;
 287
 288                 new Effect.Appear('auxDlg', {duration : 0.5});
 289
 290         } catch (e) {
 291                 exception_error("displayNewContentPrompt", e);
 292         }
 293 }
 294
 295 function parse_counters(elems, scheduled_call) {
 296         try {
 297                 for (var l = 0; l < elems.length; l++) {
 298
 299                         var id = elems[l].id;
 300                         var kind = elems[l].kind;
 301                         var ctr = parseInt(elems[l].counter);
 302                         var error = elems[l].error;
 303                         var has_img = elems[l].has_img;
 304                         var updated = elems[l].updated;
 305
 306                         if (id == "global-unread") {
 307                                 global_unread = ctr;
 308                                 updateTitle();
 309                                 continue;
 310                         }
 311
 312                         if (id == "subscribed-feeds") {
 313                                 feeds_found = ctr;
 314                                 continue;
 315                         }
 316
 317                         // TODO: enable new content notification for categories
 318
 319                         if (!activeFeedIsCat() && id == getActiveFeedId()
 320                                         && ctr > getFeedUnread(id) && scheduled_call) {
 321                                 displayNewContentPrompt(id);
 322                         }
 323
 324                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 325                                         (kind == "cat")) {
 326
 327                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 328                         }
 329
 330                         setFeedUnread(id, (kind == "cat"), ctr);
 331
 332                         if (kind != "cat") {
 333                                 setFeedValue(id, false, 'error', error);
 334                                 setFeedValue(id, false, 'updated', updated);
 335
 336                                 if (id > 0) {
 337                                         if (has_img) {
 338                                                 setFeedIcon(id, false,
 339                                                         getInitParam("icons_url") + "/" + id + ".ico");
 340                                         } else {
 341                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 342                                         }
 343                                 }
 344                         }
 345                 }
 346
 347                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 348
 349         } catch (e) {
 350                 exception_error("parse_counters", e);
 351         }
 352 }
 353
 354 function getFeedUnread(feed, is_cat) {
 355         try {
 356                 var tree = dijit.byId("feedTree");
 357
 358                 if (tree && tree.model)
 359                         return tree.model.getFeedUnread(feed, is_cat);
 360
 361         } catch (e) {
 362                 //
 363         }
 364
 365         return -1;
 366 }
 367
 368 function getFeedCategory(feed) {
 369         try {
 370                 var tree = dijit.byId("feedTree");
 371
 372                 if (tree && tree.model)
 373                         return tree.getFeedCategory(feed);
 374
 375         } catch (e) {
 376                 //
 377         }
 378
 379         return false;
 380 }
 381
 382 function hideOrShowFeeds(hide) {
 383         var tree = dijit.byId("feedTree");
 384
 385         if (tree)
 386                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 387 }
 388
 389 function getFeedName(feed, is_cat) {
 390         var tree = dijit.byId("feedTree");
 391
 392         if (tree && tree.model)
 393                 return tree.model.getFeedValue(feed, is_cat, 'name');
 394 }
 395
 396 function getFeedValue(feed, is_cat, key) {
 397         try {
 398                 var tree = dijit.byId("feedTree");
 399
 400                 if (tree && tree.model)
 401                         return tree.model.getFeedValue(feed, is_cat, key);
 402
 403         } catch (e) {
 404                 //
 405         }
 406         return '';
 407 }
 408
 409 function setFeedUnread(feed, is_cat, unread) {
 410         try {
 411                 var tree = dijit.byId("feedTree");
 412
 413                 if (tree && tree.model)
 414                         return tree.model.setFeedUnread(feed, is_cat, unread);
 415
 416         } catch (e) {
 417                 exception_error("setFeedUnread", e);
 418         }
 419 }
 420
 421 function setFeedValue(feed, is_cat, key, value) {
 422         try {
 423                 var tree = dijit.byId("feedTree");
 424
 425                 if (tree && tree.model)
 426                         return tree.model.setFeedValue(feed, is_cat, key, value);
 427
 428         } catch (e) {
 429                 //
 430         }
 431 }
 432
 433 function selectFeed(feed, is_cat) {
 434         try {
 435                 var tree = dijit.byId("feedTree");
 436
 437                 if (tree) return tree.selectFeed(feed, is_cat);
 438
 439         } catch (e) {
 440                 exception_error("selectFeed", e);
 441         }
 442 }
 443
 444 function setFeedIcon(feed, is_cat, src) {
 445         try {
 446                 var tree = dijit.byId("feedTree");
 447
 448                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 449
 450         } catch (e) {
 451                 exception_error("setFeedIcon", e);
 452         }
 453 }
 454
 455 function setFeedExpandoIcon(feed, is_cat, src) {
 456         try {
 457                 var tree = dijit.byId("feedTree");
 458
 459                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 460
 461         } catch (e) {
 462                 exception_error("setFeedIcon", e);
 463         }
 464         return false;
 465 }
 466
 467 function getNextUnreadFeed(feed, is_cat) {
 468         try {
 469                 var tree = dijit.byId("feedTree");
 470                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 471
 472                 if (nuf)
 473                         return tree.model.store.getValue(nuf, 'bare_id');
 474
 475         } catch (e) {
 476                 exception_error("getNextUnreadFeed", e);
 477         }
 478 }
 479
 480 function catchupCurrentFeed() {
 481         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 482 }
 483
 484 function catchupFeedInGroup(id) {
 485         try {
 486
 487                 var title = getFeedName(id);
 488
 489                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 490
 491                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 492                         return viewCurrentFeed('MarkAllReadGR:' + id);
 493                 }
 494
 495         } catch (e) {
 496                 exception_error("catchupFeedInGroup", e);
 497         }
 498 }
 499
 500 function catchupFeed(feed, is_cat) {
 501         try {
 502                 if (is_cat == undefined) is_cat = false;
 503
 504                 var str = __("Mark all articles in %s as read?");
 505                 var fn = getFeedName(feed, is_cat);
 506
 507                 str = str.replace("%s", fn);
 508
 509                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 510                         return;
 511                 }
 512
 513                 var max_id = 0;
 514
 515                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 516                         $$("#headlines-frame > div[id*=RROW]").each(
 517                                 function(child) {
 518                                         var id = parseInt(child.id.replace("RROW-", ""));
 519
 520                                         if (id > max_id) max_id = id;
 521                                 }
 522                         );
 523                 }
 524
 525                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 526                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 527
 528                 console.log(catchup_query);
 529
 530                 notify_progress("Loading, please wait...", true);
 531
 532                 new Ajax.Request("backend.php", {
 533                         parameters: catchup_query,
 534                         onComplete: function(transport) {
 535                                         handle_rpc_json(transport);
 536
 537                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 538
 539                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 540                                                         function(child) {
 541                                                                 child.removeClassName("Unread");
 542                                                         }
 543                                                 );
 544                                         }
 545
 546                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 547
 548                                         if (show_next_feed) {
 549                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 550
 551                                                 if (nuf) {
 552                                                         viewfeed(nuf, '', is_cat);
 553                                                 }
 554                                         }
 555
 556                                         notify("");
 557                                 } });
 558
 559         } catch (e) {
 560                 exception_error("catchupFeed", e);
 561         }
 562 }
 563
 564 function decrementFeedCounter(feed, is_cat) {
 565         try {
 566                 var ctr = getFeedUnread(feed, is_cat);
 567
 568                 if (ctr > 0) {
 569                         setFeedUnread(feed, is_cat, ctr - 1);
 570
 571                         if (!is_cat) {
 572                                 var cat = parseInt(getFeedCategory(feed));
 573
 574                                 if (!isNaN(cat)) {
 575                                         ctr = getFeedUnread(cat, true);
 576
 577                                         if (ctr > 0) {
 578                                                 setFeedUnread(cat, true, ctr - 1);
 579                                         }
 580                                 }
 581                         }
 582                 }
 583
 584                 cache_delete("feed:" + feed + ":" + is_cat);
 585
 586         } catch (e) {
 587                 exception_error("decrement_feed_counter", e);
 588         }
 589 }