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 (offset == 0 && !background)
 111                         dijit.byId("content-tabs").selectChild(
 112                                 dijit.byId("content-tabs").getChildren()[0]);
 113
 114                 if (!background) {
 115                         _viewfeed_last = get_timestamp();
 116
 117                         if (getActiveFeedId() != feed || offset == 0) {
 118                                 active_post_id = 0;
 119                                 _infscroll_disable = 0;
 120                         }
 121
 122                         if (!offset && !method && cached_headlines && !background) {
 123                                 try {
 124                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
 125                                         return;
 126                                 } catch (e) {
 127                                         console.warn("render_local_headlines failed: " + e);
 128                                 }
 129                         }
 130
 131                         if (offset != 0 && !method) {
 132                                 var timestamp = get_timestamp();
 133
 134                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 135                                         //console.log("infscroll request in progress, aborting");
 136                                         return;
 137                                 }
 138
 139                                 _infscroll_request_sent = timestamp;
 140                         }
 141
 142                         hideAuxDlg();
 143                 }
 144
 145                 Form.enable("main_toolbar_form");
 146
 147                 var toolbar_query = Form.serialize("main_toolbar_form");
 148
 149                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
 150                         toolbar_query;
 151
 152                 if (method) {
 153                         query = query + "&m=" + param_escape(method);
 154                 }
 155
 156                 if (!background) {
 157                         if (_search_query) {
 158                                 force_nocache = true;
 159                                 query = query + "&" + _search_query;
 160                                 //_search_query = false;
 161                         }
 162
 163                         if (offset != 0) {
 164                                 query = query + "&skip=" + offset;
 165
 166                                 // to prevent duplicate feed titles when showing grouped vfeeds
 167                                 if (vgroup_last_feed) {
 168                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 169                                 }
 170                         } else {
 171                                 if (!method && !is_cat && feed == getActiveFeedId()) {
 172                                         query = query + "&m=ForceUpdate";
 173                                 }
 174                         }
 175
 176                         Form.enable("main_toolbar_form");
 177
 178                         if (!offset)
 179                                 if (!is_cat) {
 180                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 181                                                 notify_progress("Loading, please wait...", true);
 182                                 } else {
 183                                         notify_progress("Loading, please wait...", true);
 184                                 }
 185                 }
 186
 187                 query += "&cat=" + is_cat;
 188
 189                 console.log(query);
 190
 191                 new Ajax.Request("backend.php", {
 192                         parameters: query,
 193                         onComplete: function(transport) {
 194                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 195                                 headlines_callback2(transport, offset, background, infscroll_req);
 196                         } });
 197
 198         } catch (e) {
 199                 exception_error("viewfeed", e);
 200         }
 201 }
 202
 203 function feedlist_init() {
 204         try {
 205                 console.log("in feedlist init");
 206
 207                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 208                 document.onkeydown = hotkey_handler;
 209                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 210
 211                  if (!getActiveFeedId())
 212                          viewfeed(-3);
 213
 214                 console.log("T:" +
 215                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 216
 217                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 218
 219                 request_counters(true);
 220                 timeout();
 221                 setTimeout("precache_headlines_idle()", 15000);
 222
 223         } catch (e) {
 224                 exception_error("feedlist/init", e);
 225         }
 226 }
 227
 228
 229 function request_counters(force) {
 230         try {
 231                 var date = new Date();
 232                 var timestamp = Math.round(date.getTime() / 1000);
 233
 234                 if (force || timestamp - counters_last_request > 15) {
 235                         console.log("scheduling request of counters...");
 236
 237                         counters_last_request = timestamp;
 238
 239                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 240
 241                         if (!force)
 242                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 243
 244                         console.log(query);
 245
 246                         new Ajax.Request("backend.php", {
 247                                 parameters: query,
 248                                 onComplete: function(transport) {
 249                                         try {
 250                                                 handle_rpc_json(transport);
 251                                         } catch (e) {
 252                                                 exception_error("request_counters", e);
 253                                         }
 254                                 } });
 255
 256                 } else {
 257                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 258                 }
 259
 260         } catch (e) {
 261                 exception_error("request_counters", e);
 262         }
 263 }
 264
 265 function displayNewContentPrompt(id) {
 266         try {
 267
 268                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 269                         __("New articles available in this feed (click to show)") + "</a>";
 270
 271                 msg = msg.replace("%s", getFeedName(id));
 272
 273                 $('auxDlg').innerHTML = msg;
 274
 275                 new Effect.Appear('auxDlg', {duration : 0.5});
 276
 277         } catch (e) {
 278                 exception_error("displayNewContentPrompt", e);
 279         }
 280 }
 281
 282 function parse_counters(elems, scheduled_call) {
 283         try {
 284                 for (var l = 0; l < elems.length; l++) {
 285
 286                         var id = elems[l].id;
 287                         var kind = elems[l].kind;
 288                         var ctr = parseInt(elems[l].counter);
 289                         var error = elems[l].error;
 290                         var has_img = elems[l].has_img;
 291                         var updated = elems[l].updated;
 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                         // TODO: enable new content notification for categories
 305
 306                         if (!activeFeedIsCat() && id == getActiveFeedId()
 307                                         && ctr > getFeedUnread(id) && scheduled_call) {
 308                                 displayNewContentPrompt(id);
 309                         }
 310
 311                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 312                                         (kind == "cat")) {
 313
 314                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 315                         }
 316
 317                         setFeedUnread(id, (kind == "cat"), ctr);
 318
 319                         if (kind != "cat") {
 320                                 setFeedValue(id, false, 'error', error);
 321                                 setFeedValue(id, false, 'updated', updated);
 322
 323                                 if (id > 0) {
 324                                         if (has_img) {
 325                                                 setFeedIcon(id, false,
 326                                                         getInitParam("icons_url") + "/" + id + ".ico");
 327                                         } else {
 328                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 329                                         }
 330                                 }
 331                         }
 332                 }
 333
 334                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 335
 336         } catch (e) {
 337                 exception_error("parse_counters", e);
 338         }
 339 }
 340
 341 function getFeedUnread(feed, is_cat) {
 342         try {
 343                 var tree = dijit.byId("feedTree");
 344
 345                 if (tree && tree.model)
 346                         return tree.model.getFeedUnread(feed, is_cat);
 347
 348         } catch (e) {
 349                 //
 350         }
 351
 352         return -1;
 353 }
 354
 355 function getFeedCategory(feed) {
 356         try {
 357                 var tree = dijit.byId("feedTree");
 358
 359                 if (tree && tree.model)
 360                         return tree.getFeedCategory(feed);
 361
 362         } catch (e) {
 363                 //
 364         }
 365
 366         return false;
 367 }
 368
 369 function hideOrShowFeeds(hide) {
 370         var tree = dijit.byId("feedTree");
 371
 372         if (tree)
 373                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 374 }
 375
 376 function getFeedName(feed, is_cat) {
 377         var tree = dijit.byId("feedTree");
 378
 379         if (tree && tree.model)
 380                 return tree.model.getFeedValue(feed, is_cat, 'name');
 381 }
 382
 383 function getFeedValue(feed, is_cat, key) {
 384         try {
 385                 var tree = dijit.byId("feedTree");
 386
 387                 if (tree && tree.model)
 388                         return tree.model.getFeedValue(feed, is_cat, key);
 389
 390         } catch (e) {
 391                 //
 392         }
 393         return '';
 394 }
 395
 396 function setFeedUnread(feed, is_cat, unread) {
 397         try {
 398                 var tree = dijit.byId("feedTree");
 399
 400                 if (tree && tree.model)
 401                         return tree.model.setFeedUnread(feed, is_cat, unread);
 402
 403         } catch (e) {
 404                 exception_error("setFeedUnread", e);
 405         }
 406 }
 407
 408 function setFeedValue(feed, is_cat, key, value) {
 409         try {
 410                 var tree = dijit.byId("feedTree");
 411
 412                 if (tree && tree.model)
 413                         return tree.model.setFeedValue(feed, is_cat, key, value);
 414
 415         } catch (e) {
 416                 //
 417         }
 418 }
 419
 420 function selectFeed(feed, is_cat) {
 421         try {
 422                 var tree = dijit.byId("feedTree");
 423
 424                 if (tree) return tree.selectFeed(feed, is_cat);
 425
 426         } catch (e) {
 427                 exception_error("selectFeed", e);
 428         }
 429 }
 430
 431 function setFeedIcon(feed, is_cat, src) {
 432         try {
 433                 var tree = dijit.byId("feedTree");
 434
 435                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 436
 437         } catch (e) {
 438                 exception_error("setFeedIcon", e);
 439         }
 440 }
 441
 442 function setFeedExpandoIcon(feed, is_cat, src) {
 443         try {
 444                 var tree = dijit.byId("feedTree");
 445
 446                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 447
 448         } catch (e) {
 449                 exception_error("setFeedIcon", e);
 450         }
 451         return false;
 452 }
 453
 454 function getNextUnreadFeed(feed, is_cat) {
 455         try {
 456                 var tree = dijit.byId("feedTree");
 457                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 458
 459                 if (nuf)
 460                         return tree.model.store.getValue(nuf, 'bare_id');
 461
 462         } catch (e) {
 463                 exception_error("getNextUnreadFeed", e);
 464         }
 465 }
 466
 467 function catchupCurrentFeed() {
 468         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 469 }
 470
 471 function catchupFeedInGroup(id) {
 472         try {
 473
 474                 var title = getFeedName(id);
 475
 476                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 477
 478                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 479                         return viewCurrentFeed('MarkAllReadGR:' + id);
 480                 }
 481
 482         } catch (e) {
 483                 exception_error("catchupFeedInGroup", e);
 484         }
 485 }
 486
 487 function catchupFeed(feed, is_cat) {
 488         try {
 489                 if (is_cat == undefined) is_cat = false;
 490
 491                 var str = __("Mark all articles in %s as read?");
 492                 var fn = getFeedName(feed, is_cat);
 493
 494                 str = str.replace("%s", fn);
 495
 496                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 497                         return;
 498                 }
 499
 500                 var max_id = 0;
 501
 502                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 503                         $$("#headlines-frame > div[id*=RROW]").each(
 504                                 function(child) {
 505                                         var id = parseInt(child.id.replace("RROW-", ""));
 506
 507                                         if (id > max_id) max_id = id;
 508                                 }
 509                         );
 510                 }
 511
 512                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 513                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 514
 515                 console.log(catchup_query);
 516
 517                 notify_progress("Loading, please wait...", true);
 518
 519                 new Ajax.Request("backend.php", {
 520                         parameters: catchup_query,
 521                         onComplete: function(transport) {
 522                                         handle_rpc_json(transport);
 523
 524                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 525
 526                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 527                                                         function(child) {
 528                                                                 child.removeClassName("Unread");
 529                                                         }
 530                                                 );
 531                                         }
 532
 533                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 534
 535                                         if (show_next_feed) {
 536                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 537
 538                                                 if (nuf) {
 539                                                         viewfeed(nuf, '', is_cat);
 540                                                 }
 541                                         }
 542
 543                                         notify("");
 544                                 } });
 545
 546         } catch (e) {
 547                 exception_error("catchupFeed", e);
 548         }
 549 }
 550
 551 function decrementFeedCounter(feed, is_cat) {
 552         try {
 553                 var ctr = getFeedUnread(feed, is_cat);
 554
 555                 if (ctr > 0) {
 556                         setFeedUnread(feed, is_cat, ctr - 1);
 557                         global_unread = global_unread - 1;
 558                         updateTitle();
 559
 560                         if (!is_cat) {
 561                                 var cat = parseInt(getFeedCategory(feed));
 562
 563                                 if (!isNaN(cat)) {
 564                                         ctr = getFeedUnread(cat, true);
 565
 566                                         if (ctr > 0) {
 567                                                 setFeedUnread(cat, true, ctr - 1);
 568                                         }
 569                                 }
 570                         }
 571                 }
 572
 573                 cache_delete("feed:" + feed + ":" + is_cat);
 574
 575         } catch (e) {
 576                 exception_error("decrement_feed_counter", e);
 577         }
 578 }