js/feedlist.js

   1 var _infscroll_disable = 0;
   2 var _infscroll_request_sent = 0;
   3 var _search_query = false;
   4
   5 var counter_timeout_id = false;
   6
   7 var counters_last_request = 0;
   8
   9 function viewCategory(cat) {
  10         viewfeed(cat, '', true);
  11         return false;
  12 }
  13
  14 function loadMoreHeadlines() {
  15         try {
  16                 console.log("loadMoreHeadlines");
  17
  18                 var offset = 0;
  19
  20                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  21                 var num_unread = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  22                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  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 = num_unread;
  34                 } else if (view_mode == "adaptive") {
  35                         if (num_unread > 0)
  36                                 offset = num_unread;
  37                         else
  38                                 offset = num_all;
  39                 } else {
  40                         offset = num_all;
  41                 }
  42
  43                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
  44
  45         } catch (e) {
  46                 exception_error("viewNextFeedPage", e);
  47         }
  48 }
  49
  50
  51 function viewfeed(feed, method, is_cat, offset, background, infscroll_req) {
  52         try {
  53                 if (is_cat == undefined)
  54                         is_cat = false;
  55                 else
  56                         is_cat = !!is_cat;
  57
  58                 if (method == undefined) method = '';
  59                 if (offset == undefined) offset = 0;
  60                 if (background == undefined) background = false;
  61                 if (infscroll_req == undefined) infscroll_req = false;
  62
  63                 last_requested_article = 0;
  64
  65                 var cached_headlines = false;
  66
  67                 if (feed == getActiveFeedId()) {
  68                         cache_delete("feed:" + feed + ":" + is_cat);
  69                 } else {
  70                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  71
  72                         // switching to a different feed, we might as well catchup stuff visible
  73                         // in headlines buffer (if any)
  74                         // disabled for now because this behavior is considered confusing -fox
  75                         /* if (!background && isCdmMode() && getInitParam("cdm_auto_catchup") == 1 && parseInt(getActiveFeedId()) > 0) {
  76
  77                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
  78                                         function(child) {
  79                                                 var hf = $("headlines-frame");
  80
  81                                                 if (hf.scrollTop + hf.offsetHeight >=
  82                                                                 child.offsetTop + child.offsetHeight) {
  83
  84                                                         var id = child.id.replace("RROW-", "");
  85
  86                                                         if (catchup_id_batch.indexOf(id) == -1)
  87                                                                 catchup_id_batch.push(id);
  88
  89                                                 }
  90
  91                                                 if (catchup_id_batch.length > 0) {
  92                                                         window.clearTimeout(catchup_timeout_id);
  93
  94                                                         if (!_infscroll_request_sent) {
  95                                                                 catchup_timeout_id = window.setTimeout('catchupBatchedArticles()',
  96                                                                         2000);
  97                                                         }
  98                                                 }
  99
 100                                         });
 101                         } */
 102                 }
 103
 104                 if (offset == 0 && !background)
 105                         dijit.byId("content-tabs").selectChild(
 106                                 dijit.byId("content-tabs").getChildren()[0]);
 107
 108                 if (!background) {
 109                         if (getActiveFeedId() != feed || offset == 0) {
 110                                 active_post_id = 0;
 111                                 _infscroll_disable = 0;
 112                         }
 113
 114                         if (!offset && !method && cached_headlines && !background) {
 115                                 try {
 116                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
 117                                         return;
 118                                 } catch (e) {
 119                                         console.warn("render_local_headlines failed: " + e);
 120                                 }
 121                         }
 122
 123                         if (offset != 0 && !method) {
 124                                 var date = new Date();
 125                                 var timestamp = Math.round(date.getTime() / 1000);
 126
 127                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 128                                         //console.log("infscroll request in progress, aborting");
 129                                         return;
 130                                 }
 131
 132                                 _infscroll_request_sent = timestamp;
 133                         }
 134
 135                         hideAuxDlg();
 136                 }
 137
 138                 Form.enable("main_toolbar_form");
 139
 140                 var toolbar_query = Form.serialize("main_toolbar_form");
 141
 142                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
 143                         toolbar_query + "&m=" + param_escape(method);
 144
 145                 if (!background) {
 146                         if (_search_query) {
 147                                 force_nocache = true;
 148                                 query = query + "&" + _search_query;
 149                                 _search_query = false;
 150                         }
 151
 152                         if (offset != 0) {
 153                                 query = query + "&skip=" + offset;
 154
 155                                 // to prevent duplicate feed titles when showing grouped vfeeds
 156                                 if (vgroup_last_feed) {
 157                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 158                                 }
 159                         }
 160
 161                         Form.enable("main_toolbar_form");
 162
 163                         if (!offset)
 164                                 if (!is_cat) {
 165                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 166                                                 notify_progress("Loading, please wait...", true);
 167                                 } else {
 168                                         notify_progress("Loading, please wait...", true);
 169                                 }
 170                 }
 171
 172                 query += "&cat=" + is_cat;
 173
 174                 console.log(query);
 175
 176                 new Ajax.Request("backend.php", {
 177                         parameters: query,
 178                         onComplete: function(transport) {
 179                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 180                                 headlines_callback2(transport, offset, background, infscroll_req);
 181                         } });
 182
 183         } catch (e) {
 184                 exception_error("viewfeed", e);
 185         }
 186 }
 187
 188 function feedlist_init() {
 189         try {
 190                 console.log("in feedlist init");
 191
 192                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 193                 document.onkeydown = hotkey_handler;
 194                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 195
 196                  if (!getActiveFeedId()) {
 197                         setTimeout("viewfeed(-3)", 100);
 198                 }
 199
 200                 console.log("T:" +
 201                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 202
 203                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 204
 205                 setTimeout("timeout()", 5000);
 206                 setTimeout("precache_headlines_idle()", 3000);
 207
 208         } catch (e) {
 209                 exception_error("feedlist/init", e);
 210         }
 211 }
 212
 213 function request_counters_real() {
 214         try {
 215                 console.log("requesting counters...");
 216
 217                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 218
 219                 query = query + "&omode=flc";
 220
 221                 new Ajax.Request("backend.php", {
 222                         parameters: query,
 223                         onComplete: function(transport) {
 224                                 try {
 225                                         handle_rpc_json(transport);
 226                                 } catch (e) {
 227                                         exception_error("viewfeed/getcounters", e);
 228                                 }
 229                         } });
 230
 231         } catch (e) {
 232                 exception_error("request_counters_real", e);
 233         }
 234 }
 235
 236
 237 function request_counters() {
 238
 239         try {
 240
 241                 if (getInitParam("bw_limit") == "1") return;
 242
 243                 var date = new Date();
 244                 var timestamp = Math.round(date.getTime() / 1000);
 245
 246                 if (timestamp - counters_last_request > 5) {
 247                         console.log("scheduling request of counters...");
 248
 249                         window.clearTimeout(counter_timeout_id);
 250                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 251
 252                         counters_last_request = timestamp;
 253                 } else {
 254                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 255                 }
 256
 257         } catch (e) {
 258                 exception_error("request_counters", e);
 259         }
 260 }
 261
 262 function displayNewContentPrompt(id) {
 263         try {
 264
 265                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 266                         __("New articles available in this feed (click to show)") + "</a>";
 267
 268                 msg = msg.replace("%s", getFeedName(id));
 269
 270                 $('auxDlg').innerHTML = msg;
 271
 272                 new Effect.Appear('auxDlg', {duration : 0.5});
 273
 274         } catch (e) {
 275                 exception_error("displayNewContentPrompt", e);
 276         }
 277 }
 278
 279 function parse_counters(elems, scheduled_call) {
 280         try {
 281                 for (var l = 0; l < elems.length; l++) {
 282
 283                         var id = elems[l].id;
 284                         var kind = elems[l].kind;
 285                         var ctr = parseInt(elems[l].counter);
 286                         var error = elems[l].error;
 287                         var has_img = elems[l].has_img;
 288                         var updated = elems[l].updated;
 289                         var child_unread = parseInt(elems[l].child_counter);
 290
 291                         if (id == "global-unread") {
 292                                 global_unread = ctr;
 293                                 updateTitle();
 294                                 continue;
 295                         }
 296
 297                         if (id == "subscribed-feeds") {
 298                                 feeds_found = ctr;
 299                                 continue;
 300                         }
 301
 302                         // TODO: enable new content notification for categories
 303
 304                         if (!activeFeedIsCat() && id == getActiveFeedId()
 305                                         && ctr > getFeedUnread(id) && scheduled_call) {
 306                                 displayNewContentPrompt(id);
 307                         }
 308
 309                         if (getFeedUnread(id, (kind == "cat")) != ctr)
 310                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 311
 312                         setFeedUnread(id, (kind == "cat"), ctr);
 313
 314                         if (kind != "cat") {
 315                                 setFeedValue(id, false, 'error', error);
 316                                 setFeedValue(id, false, 'updated', updated);
 317
 318                                 if (id > 0) {
 319                                         if (has_img) {
 320                                                 setFeedIcon(id, false,
 321                                                         getInitParam("icons_url") + "/" + id + ".ico");
 322                                         } else {
 323                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 324                                         }
 325                                 }
 326                         } else {
 327                                 setCatParam(id, child_unread);
 328                         }
 329                 }
 330
 331                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 332
 333         } catch (e) {
 334                 exception_error("parse_counters", e);
 335         }
 336 }
 337
 338 function getFeedUnread(feed, is_cat) {
 339         try {
 340                 var tree = dijit.byId("feedTree");
 341
 342                 if (tree && tree.model)
 343                         return tree.model.getFeedUnread(feed, is_cat);
 344
 345         } catch (e) {
 346                 //
 347         }
 348
 349         return -1;
 350 }
 351
 352 function getFeedCategory(feed) {
 353         try {
 354                 var tree = dijit.byId("feedTree");
 355
 356                 if (tree && tree.model)
 357                         return tree.getFeedCategory(feed);
 358
 359         } catch (e) {
 360                 //
 361         }
 362
 363         return false;
 364 }
 365
 366 function hideOrShowFeeds(hide) {
 367         var tree = dijit.byId("feedTree");
 368
 369         if (tree)
 370                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 371 }
 372
 373 function getFeedName(feed, is_cat) {
 374         var tree = dijit.byId("feedTree");
 375
 376         if (tree && tree.model)
 377                 return tree.model.getFeedValue(feed, is_cat, 'name');
 378 }
 379
 380 function getFeedValue(feed, is_cat, key) {
 381         try {
 382                 var tree = dijit.byId("feedTree");
 383
 384                 if (tree && tree.model)
 385                         return tree.model.getFeedValue(feed, is_cat, key);
 386
 387         } catch (e) {
 388                 //
 389         }
 390         return '';
 391 }
 392
 393 function setFeedUnread(feed, is_cat, unread) {
 394         try {
 395                 var tree = dijit.byId("feedTree");
 396
 397                 if (tree && tree.model)
 398                         return tree.model.setFeedUnread(feed, is_cat, unread);
 399
 400         } catch (e) {
 401                 exception_error("setFeedUnread", e);
 402         }
 403 }
 404
 405 function setFeedValue(feed, is_cat, key, value) {
 406         try {
 407                 var tree = dijit.byId("feedTree");
 408
 409                 if (tree && tree.model)
 410                         return tree.model.setFeedValue(feed, is_cat, key, value);
 411
 412         } catch (e) {
 413                 //
 414         }
 415 }
 416
 417 function setCatParam(cat, value) {
 418         try {
 419                 var tree = dijit.byId("feedTree");
 420
 421                 if (tree && tree.model)
 422                         return tree.setCatParam(cat, value);
 423
 424         } catch (e) {
 425                 //
 426         }
 427 }
 428
 429
 430 function selectFeed(feed, is_cat) {
 431         try {
 432                 var tree = dijit.byId("feedTree");
 433
 434                 if (tree) return tree.selectFeed(feed, is_cat);
 435
 436         } catch (e) {
 437                 exception_error("selectFeed", e);
 438         }
 439 }
 440
 441 function setFeedIcon(feed, is_cat, src) {
 442         try {
 443                 var tree = dijit.byId("feedTree");
 444
 445                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 446
 447         } catch (e) {
 448                 exception_error("setFeedIcon", e);
 449         }
 450 }
 451
 452 function setFeedExpandoIcon(feed, is_cat, src) {
 453         try {
 454                 var tree = dijit.byId("feedTree");
 455
 456                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 457
 458         } catch (e) {
 459                 exception_error("setFeedIcon", e);
 460         }
 461         return false;
 462 }
 463
 464 function getNextUnreadFeed(feed, is_cat) {
 465         try {
 466                 var tree = dijit.byId("feedTree");
 467                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 468
 469                 if (nuf)
 470                         return tree.model.store.getValue(nuf, 'bare_id');
 471
 472         } catch (e) {
 473                 exception_error("getNextUnreadFeed", e);
 474         }
 475 }
 476
 477 function catchupCurrentFeed() {
 478         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 479 }
 480
 481 function catchupFeedInGroup(id) {
 482         try {
 483
 484                 var title = getFeedName(id);
 485
 486                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 487
 488                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 489                         return viewCurrentFeed('MarkAllReadGR:' + id);
 490                 }
 491
 492         } catch (e) {
 493                 exception_error("catchupFeedInGroup", e);
 494         }
 495 }
 496
 497 function catchupFeed(feed, is_cat) {
 498         try {
 499                 if (is_cat == undefined) is_cat = false;
 500
 501                 var str = __("Mark all articles in %s as read?");
 502                 var fn = getFeedName(feed, is_cat);
 503
 504                 str = str.replace("%s", fn);
 505
 506                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 507                         return;
 508                 }
 509
 510                 var max_id = 0;
 511
 512                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 513                         $$("#headlines-frame > div[id*=RROW]").each(
 514                                 function(child) {
 515                                         var id = parseInt(child.id.replace("RROW-", ""));
 516
 517                                         if (id > max_id) max_id = id;
 518                                 }
 519                         );
 520                 }
 521
 522                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 523                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 524
 525                 console.log(catchup_query);
 526
 527                 notify_progress("Loading, please wait...", true);
 528
 529                 new Ajax.Request("backend.php", {
 530                         parameters: catchup_query,
 531                         onComplete: function(transport) {
 532                                         handle_rpc_json(transport);
 533
 534                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 535
 536                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 537                                                         function(child) {
 538                                                                 child.removeClassName("Unread");
 539                                                         }
 540                                                 );
 541                                         }
 542
 543                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 544
 545                                         if (show_next_feed) {
 546                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 547
 548                                                 if (nuf) {
 549                                                         viewfeed(nuf, '', is_cat);
 550                                                 }
 551                                         }
 552
 553                                         notify("");
 554                                 } });
 555
 556         } catch (e) {
 557                 exception_error("catchupFeed", e);
 558         }
 559 }
 560
 561 function decrementFeedCounter(feed, is_cat) {
 562         try {
 563                 var ctr = getFeedUnread(feed, is_cat);
 564
 565                 if (ctr > 0) {
 566                         setFeedUnread(feed, is_cat, ctr - 1);
 567
 568                         if (!is_cat) {
 569                                 var cat = parseInt(getFeedCategory(feed));
 570
 571                                 if (!isNaN(cat)) {
 572                                         ctr = getFeedUnread(cat, true);
 573
 574                                         if (ctr > 0) {
 575                                                 setFeedUnread(cat, true, ctr - 1);
 576                                         }
 577                                 }
 578                         }
 579                 }
 580
 581                 cache_delete("feed:" + feed + ":" + is_cat);
 582
 583         } catch (e) {
 584                 exception_error("decrement_feed_counter", e);
 585         }
 586 }