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 (_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 + "&m=" + param_escape(method);
 153
 154                 if (!background) {
 155                         if (_search_query) {
 156                                 force_nocache = true;
 157                                 query = query + "&" + _search_query;
 158                                 //_search_query = false;
 159                         }
 160
 161                         if (offset != 0) {
 162                                 query = query + "&skip=" + offset;
 163
 164                                 // to prevent duplicate feed titles when showing grouped vfeeds
 165                                 if (vgroup_last_feed) {
 166                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 167                                 }
 168                         }
 169
 170                         Form.enable("main_toolbar_form");
 171
 172                         if (!offset)
 173                                 if (!is_cat) {
 174                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 175                                                 notify_progress("Loading, please wait...", true);
 176                                 } else {
 177                                         notify_progress("Loading, please wait...", true);
 178                                 }
 179                 }
 180
 181                 query += "&cat=" + is_cat;
 182                 query += "&include_children=" + dijit.byId("include_children").attr("checked");
 183
 184                 console.log(query);
 185
 186                 new Ajax.Request("backend.php", {
 187                         parameters: query,
 188                         onComplete: function(transport) {
 189                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 190                                 headlines_callback2(transport, offset, background, infscroll_req);
 191                         } });
 192
 193         } catch (e) {
 194                 exception_error("viewfeed", e);
 195         }
 196 }
 197
 198 function feedlist_init() {
 199         try {
 200                 console.log("in feedlist init");
 201
 202                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 203                 document.onkeydown = hotkey_handler;
 204                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 205
 206                  if (!getActiveFeedId()) {
 207                         setTimeout("viewfeed(-3)", 100);
 208                 }
 209
 210                 console.log("T:" +
 211                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 212
 213                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 214
 215                 setTimeout("timeout()", 5000);
 216                 setTimeout("precache_headlines_idle()", 15000);
 217
 218         } catch (e) {
 219                 exception_error("feedlist/init", e);
 220         }
 221 }
 222
 223 function request_counters_real() {
 224         try {
 225                 console.log("requesting counters...");
 226
 227                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 228
 229                 query = query + "&omode=flc";
 230
 231                 new Ajax.Request("backend.php", {
 232                         parameters: query,
 233                         onComplete: function(transport) {
 234                                 try {
 235                                         handle_rpc_json(transport);
 236                                 } catch (e) {
 237                                         exception_error("viewfeed/getcounters", e);
 238                                 }
 239                         } });
 240
 241         } catch (e) {
 242                 exception_error("request_counters_real", e);
 243         }
 244 }
 245
 246
 247 function request_counters() {
 248
 249         try {
 250
 251                 //if (getInitParam("bw_limit") == "1") return;
 252
 253                 var date = new Date();
 254                 var timestamp = Math.round(date.getTime() / 1000);
 255
 256                 if (timestamp - counters_last_request > 5) {
 257                         console.log("scheduling request of counters...");
 258
 259                         window.clearTimeout(counter_timeout_id);
 260                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 261
 262                         counters_last_request = timestamp;
 263                 } else {
 264                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 265                 }
 266
 267         } catch (e) {
 268                 exception_error("request_counters", e);
 269         }
 270 }
 271
 272 function displayNewContentPrompt(id) {
 273         try {
 274
 275                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 276                         __("New articles available in this feed (click to show)") + "</a>";
 277
 278                 msg = msg.replace("%s", getFeedName(id));
 279
 280                 $('auxDlg').innerHTML = msg;
 281
 282                 new Effect.Appear('auxDlg', {duration : 0.5});
 283
 284         } catch (e) {
 285                 exception_error("displayNewContentPrompt", e);
 286         }
 287 }
 288
 289 function parse_counters(elems, scheduled_call) {
 290         try {
 291                 for (var l = 0; l < elems.length; l++) {
 292
 293                         var id = elems[l].id;
 294                         var kind = elems[l].kind;
 295                         var ctr = parseInt(elems[l].counter);
 296                         var error = elems[l].error;
 297                         var has_img = elems[l].has_img;
 298                         var updated = elems[l].updated;
 299                         var child_unread = parseInt(elems[l].child_counter);
 300
 301                         if (id == "global-unread") {
 302                                 global_unread = ctr;
 303                                 updateTitle();
 304                                 continue;
 305                         }
 306
 307                         if (id == "subscribed-feeds") {
 308                                 feeds_found = ctr;
 309                                 continue;
 310                         }
 311
 312                         // TODO: enable new content notification for categories
 313
 314                         if (!activeFeedIsCat() && id == getActiveFeedId()
 315                                         && ctr > getFeedUnread(id) && scheduled_call) {
 316                                 displayNewContentPrompt(id);
 317                         }
 318
 319                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 320                                         (kind == "cat" && getCatParam(id) != child_unread)) {
 321
 322                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 323                         }
 324
 325                         setFeedUnread(id, (kind == "cat"), ctr);
 326
 327                         if (kind != "cat") {
 328                                 setFeedValue(id, false, 'error', error);
 329                                 setFeedValue(id, false, 'updated', updated);
 330
 331                                 if (id > 0) {
 332                                         if (has_img) {
 333                                                 setFeedIcon(id, false,
 334                                                         getInitParam("icons_url") + "/" + id + ".ico");
 335                                         } else {
 336                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 337                                         }
 338                                 }
 339                         } else {
 340                                 setCatParam(id, child_unread);
 341                         }
 342                 }
 343
 344                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 345
 346         } catch (e) {
 347                 exception_error("parse_counters", e);
 348         }
 349 }
 350
 351 function getFeedUnread(feed, is_cat) {
 352         try {
 353                 var tree = dijit.byId("feedTree");
 354
 355                 if (tree && tree.model)
 356                         return tree.model.getFeedUnread(feed, is_cat);
 357
 358         } catch (e) {
 359                 //
 360         }
 361
 362         return -1;
 363 }
 364
 365 function getFeedCategory(feed) {
 366         try {
 367                 var tree = dijit.byId("feedTree");
 368
 369                 if (tree && tree.model)
 370                         return tree.getFeedCategory(feed);
 371
 372         } catch (e) {
 373                 //
 374         }
 375
 376         return false;
 377 }
 378
 379 function hideOrShowFeeds(hide) {
 380         var tree = dijit.byId("feedTree");
 381
 382         if (tree)
 383                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 384 }
 385
 386 function getFeedName(feed, is_cat) {
 387         var tree = dijit.byId("feedTree");
 388
 389         if (tree && tree.model)
 390                 return tree.model.getFeedValue(feed, is_cat, 'name');
 391 }
 392
 393 function getFeedValue(feed, is_cat, key) {
 394         try {
 395                 var tree = dijit.byId("feedTree");
 396
 397                 if (tree && tree.model)
 398                         return tree.model.getFeedValue(feed, is_cat, key);
 399
 400         } catch (e) {
 401                 //
 402         }
 403         return '';
 404 }
 405
 406 function setFeedUnread(feed, is_cat, unread) {
 407         try {
 408                 var tree = dijit.byId("feedTree");
 409
 410                 if (tree && tree.model)
 411                         return tree.model.setFeedUnread(feed, is_cat, unread);
 412
 413         } catch (e) {
 414                 exception_error("setFeedUnread", e);
 415         }
 416 }
 417
 418 function setFeedValue(feed, is_cat, key, value) {
 419         try {
 420                 var tree = dijit.byId("feedTree");
 421
 422                 if (tree && tree.model)
 423                         return tree.model.setFeedValue(feed, is_cat, key, value);
 424
 425         } catch (e) {
 426                 //
 427         }
 428 }
 429
 430 function setCatParam(cat, value) {
 431         try {
 432                 var tree = dijit.byId("feedTree");
 433
 434                 if (tree && tree.model)
 435                         return tree.setCatParam(cat, value);
 436
 437         } catch (e) {
 438                 //
 439         }
 440 }
 441
 442 function getCatParam(cat) {
 443         try {
 444                 return getFeedValue(cat, true, "child_unread");
 445         } catch (e) {
 446                 //
 447         }
 448 }
 449
 450
 451 function selectFeed(feed, is_cat) {
 452         try {
 453                 var tree = dijit.byId("feedTree");
 454
 455                 if (tree) return tree.selectFeed(feed, is_cat);
 456
 457         } catch (e) {
 458                 exception_error("selectFeed", e);
 459         }
 460 }
 461
 462 function setFeedIcon(feed, is_cat, src) {
 463         try {
 464                 var tree = dijit.byId("feedTree");
 465
 466                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 467
 468         } catch (e) {
 469                 exception_error("setFeedIcon", e);
 470         }
 471 }
 472
 473 function setFeedExpandoIcon(feed, is_cat, src) {
 474         try {
 475                 var tree = dijit.byId("feedTree");
 476
 477                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 478
 479         } catch (e) {
 480                 exception_error("setFeedIcon", e);
 481         }
 482         return false;
 483 }
 484
 485 function getNextUnreadFeed(feed, is_cat) {
 486         try {
 487                 var tree = dijit.byId("feedTree");
 488                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 489
 490                 if (nuf)
 491                         return tree.model.store.getValue(nuf, 'bare_id');
 492
 493         } catch (e) {
 494                 exception_error("getNextUnreadFeed", e);
 495         }
 496 }
 497
 498 function catchupCurrentFeed() {
 499         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 500 }
 501
 502 function catchupFeedInGroup(id) {
 503         try {
 504
 505                 var title = getFeedName(id);
 506
 507                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 508
 509                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 510                         return viewCurrentFeed('MarkAllReadGR:' + id);
 511                 }
 512
 513         } catch (e) {
 514                 exception_error("catchupFeedInGroup", e);
 515         }
 516 }
 517
 518 function catchupFeed(feed, is_cat) {
 519         try {
 520                 if (is_cat == undefined) is_cat = false;
 521
 522                 var str = __("Mark all articles in %s as read?");
 523                 var fn = getFeedName(feed, is_cat);
 524
 525                 str = str.replace("%s", fn);
 526
 527                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 528                         return;
 529                 }
 530
 531                 var max_id = 0;
 532
 533                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 534                         $$("#headlines-frame > div[id*=RROW]").each(
 535                                 function(child) {
 536                                         var id = parseInt(child.id.replace("RROW-", ""));
 537
 538                                         if (id > max_id) max_id = id;
 539                                 }
 540                         );
 541                 }
 542
 543                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 544                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 545
 546                 console.log(catchup_query);
 547
 548                 notify_progress("Loading, please wait...", true);
 549
 550                 new Ajax.Request("backend.php", {
 551                         parameters: catchup_query,
 552                         onComplete: function(transport) {
 553                                         handle_rpc_json(transport);
 554
 555                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 556
 557                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 558                                                         function(child) {
 559                                                                 child.removeClassName("Unread");
 560                                                         }
 561                                                 );
 562                                         }
 563
 564                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 565
 566                                         if (show_next_feed) {
 567                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 568
 569                                                 if (nuf) {
 570                                                         viewfeed(nuf, '', is_cat);
 571                                                 }
 572                                         }
 573
 574                                         notify("");
 575                                 } });
 576
 577         } catch (e) {
 578                 exception_error("catchupFeed", e);
 579         }
 580 }
 581
 582 function decrementFeedCounter(feed, is_cat) {
 583         try {
 584                 // we have subcats, no way to figure out if this article is
 585                 // actually from this category
 586                 if (is_cat && getCatParam(feed) > 0)
 587                         return;
 588
 589                 var ctr = getFeedUnread(feed, is_cat);
 590
 591                 if (ctr > 0) {
 592                         setFeedUnread(feed, is_cat, ctr - 1);
 593
 594                         if (!is_cat) {
 595                                 var cat = parseInt(getFeedCategory(feed));
 596
 597                                 if (!isNaN(cat)) {
 598                                         ctr = getFeedUnread(cat, true);
 599
 600                                         if (ctr > 0) {
 601                                                 setFeedUnread(cat, true, ctr - 1);
 602                                         }
 603                                 }
 604                         }
 605                 }
 606
 607                 cache_delete("feed:" + feed + ":" + is_cat);
 608
 609         } catch (e) {
 610                 exception_error("decrement_feed_counter", e);
 611         }
 612 }