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                                 setActiveArticleId(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                 } else {
 210                         viewfeed(getActiveFeedId(), '', activeFeedIsCat());
 211                 }
 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 > 5) {
 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                         if (id == getActiveFeedId() && ctr > getFeedUnread(id) && scheduled_call) {
 301                                 displayNewContentPrompt(id);
 302                         }
 303
 304                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 305                                         (kind == "cat")) {
 306
 307                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 308                         }
 309
 310                         setFeedUnread(id, (kind == "cat"), ctr);
 311
 312                         if (kind != "cat") {
 313                                 setFeedValue(id, false, 'error', error);
 314                                 setFeedValue(id, false, 'updated', updated);
 315
 316                                 if (id > 0) {
 317                                         if (has_img) {
 318                                                 setFeedIcon(id, false,
 319                                                         getInitParam("icons_url") + "/" + id + ".ico");
 320                                         } else {
 321                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 322                                         }
 323                                 }
 324                         }
 325                 }
 326
 327                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 328
 329         } catch (e) {
 330                 exception_error("parse_counters", e);
 331         }
 332 }
 333
 334 function getFeedUnread(feed, is_cat) {
 335         try {
 336                 var tree = dijit.byId("feedTree");
 337
 338                 if (tree && tree.model)
 339                         return tree.model.getFeedUnread(feed, is_cat);
 340
 341         } catch (e) {
 342                 //
 343         }
 344
 345         return -1;
 346 }
 347
 348 function getFeedCategory(feed) {
 349         try {
 350                 var tree = dijit.byId("feedTree");
 351
 352                 if (tree && tree.model)
 353                         return tree.getFeedCategory(feed);
 354
 355         } catch (e) {
 356                 //
 357         }
 358
 359         return false;
 360 }
 361
 362 function hideOrShowFeeds(hide) {
 363         var tree = dijit.byId("feedTree");
 364
 365         if (tree)
 366                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 367 }
 368
 369 function getFeedName(feed, is_cat) {
 370         var tree = dijit.byId("feedTree");
 371
 372         if (tree && tree.model)
 373                 return tree.model.getFeedValue(feed, is_cat, 'name');
 374 }
 375
 376 function getFeedValue(feed, is_cat, key) {
 377         try {
 378                 var tree = dijit.byId("feedTree");
 379
 380                 if (tree && tree.model)
 381                         return tree.model.getFeedValue(feed, is_cat, key);
 382
 383         } catch (e) {
 384                 //
 385         }
 386         return '';
 387 }
 388
 389 function setFeedUnread(feed, is_cat, unread) {
 390         try {
 391                 var tree = dijit.byId("feedTree");
 392
 393                 if (tree && tree.model)
 394                         return tree.model.setFeedUnread(feed, is_cat, unread);
 395
 396         } catch (e) {
 397                 exception_error("setFeedUnread", e);
 398         }
 399 }
 400
 401 function setFeedValue(feed, is_cat, key, value) {
 402         try {
 403                 var tree = dijit.byId("feedTree");
 404
 405                 if (tree && tree.model)
 406                         return tree.model.setFeedValue(feed, is_cat, key, value);
 407
 408         } catch (e) {
 409                 //
 410         }
 411 }
 412
 413 function selectFeed(feed, is_cat) {
 414         try {
 415                 var tree = dijit.byId("feedTree");
 416
 417                 if (tree) return tree.selectFeed(feed, is_cat);
 418
 419         } catch (e) {
 420                 exception_error("selectFeed", e);
 421         }
 422 }
 423
 424 function setFeedIcon(feed, is_cat, src) {
 425         try {
 426                 var tree = dijit.byId("feedTree");
 427
 428                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 429
 430         } catch (e) {
 431                 exception_error("setFeedIcon", e);
 432         }
 433 }
 434
 435 function setFeedExpandoIcon(feed, is_cat, src) {
 436         try {
 437                 var tree = dijit.byId("feedTree");
 438
 439                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 440
 441         } catch (e) {
 442                 exception_error("setFeedIcon", e);
 443         }
 444         return false;
 445 }
 446
 447 function getNextUnreadFeed(feed, is_cat) {
 448         try {
 449                 var tree = dijit.byId("feedTree");
 450                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 451
 452                 if (nuf)
 453                         return tree.model.store.getValue(nuf, 'bare_id');
 454
 455         } catch (e) {
 456                 exception_error("getNextUnreadFeed", e);
 457         }
 458 }
 459
 460 function catchupCurrentFeed() {
 461         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 462 }
 463
 464 function catchupFeedInGroup(id) {
 465         try {
 466
 467                 var title = getFeedName(id);
 468
 469                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 470
 471                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 472                         return viewCurrentFeed('MarkAllReadGR:' + id);
 473                 }
 474
 475         } catch (e) {
 476                 exception_error("catchupFeedInGroup", e);
 477         }
 478 }
 479
 480 function catchupFeed(feed, is_cat) {
 481         try {
 482                 if (is_cat == undefined) is_cat = false;
 483
 484                 var str = __("Mark all articles in %s as read?");
 485                 var fn = getFeedName(feed, is_cat);
 486
 487                 str = str.replace("%s", fn);
 488
 489                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 490                         return;
 491                 }
 492
 493                 var max_id = 0;
 494
 495                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 496                         $$("#headlines-frame > div[id*=RROW]").each(
 497                                 function(child) {
 498                                         var id = parseInt(child.id.replace("RROW-", ""));
 499
 500                                         if (id > max_id) max_id = id;
 501                                 }
 502                         );
 503                 }
 504
 505                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 506                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 507
 508                 console.log(catchup_query);
 509
 510                 notify_progress("Loading, please wait...", true);
 511
 512                 new Ajax.Request("backend.php", {
 513                         parameters: catchup_query,
 514                         onComplete: function(transport) {
 515                                         handle_rpc_json(transport);
 516
 517                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 518
 519                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 520                                                         function(child) {
 521                                                                 child.removeClassName("Unread");
 522                                                         }
 523                                                 );
 524                                         }
 525
 526                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 527
 528                                         if (show_next_feed) {
 529                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 530
 531                                                 if (nuf) {
 532                                                         viewfeed(nuf, '', is_cat);
 533                                                 }
 534                                         }
 535
 536                                         notify("");
 537                                 } });
 538
 539         } catch (e) {
 540                 exception_error("catchupFeed", e);
 541         }
 542 }
 543
 544 function decrementFeedCounter(feed, is_cat) {
 545         try {
 546                 var ctr = getFeedUnread(feed, is_cat);
 547
 548                 if (ctr > 0) {
 549                         setFeedUnread(feed, is_cat, ctr - 1);
 550                         global_unread = global_unread - 1;
 551                         updateTitle();
 552
 553                         if (!is_cat) {
 554                                 var cat = parseInt(getFeedCategory(feed));
 555
 556                                 if (!isNaN(cat)) {
 557                                         ctr = getFeedUnread(cat, true);
 558
 559                                         if (ctr > 0) {
 560                                                 setFeedUnread(cat, true, ctr - 1);
 561                                         }
 562                                 }
 563                         }
 564                 }
 565
 566                 cache_delete("feed:" + feed + ":" + is_cat);
 567
 568         } catch (e) {
 569                 exception_error("decrement_feed_counter", e);
 570         }
 571 }