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 (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                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
  46
  47         } catch (e) {
  48                 exception_error("viewNextFeedPage", e);
  49         }
  50 }
  51
  52
  53 function viewfeed(feed, method, is_cat, offset, background, infscroll_req) {
  54         try {
  55                 if (is_cat == undefined)
  56                         is_cat = false;
  57                 else
  58                         is_cat = !!is_cat;
  59
  60                 if (method == undefined) method = '';
  61                 if (offset == undefined) offset = 0;
  62                 if (background == undefined) background = false;
  63                 if (infscroll_req == undefined) infscroll_req = false;
  64
  65                 last_requested_article = 0;
  66
  67                 var cached_headlines = false;
  68
  69                 if (feed == getActiveFeedId()) {
  70                         cache_delete("feed:" + feed + ":" + is_cat);
  71                 } else {
  72                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  73
  74                         // switching to a different feed, we might as well catchup stuff visible
  75                         // in headlines buffer (if any)
  76                         // disabled for now because this behavior is considered confusing -fox
  77                         /* if (!background && isCdmMode() && getInitParam("cdm_auto_catchup") == 1 && parseInt(getActiveFeedId()) > 0) {
  78
  79                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
  80                                         function(child) {
  81                                                 var hf = $("headlines-frame");
  82
  83                                                 if (hf.scrollTop + hf.offsetHeight >=
  84                                                                 child.offsetTop + child.offsetHeight) {
  85
  86                                                         var id = child.id.replace("RROW-", "");
  87
  88                                                         if (catchup_id_batch.indexOf(id) == -1)
  89                                                                 catchup_id_batch.push(id);
  90
  91                                                 }
  92
  93                                                 if (catchup_id_batch.length > 0) {
  94                                                         window.clearTimeout(catchup_timeout_id);
  95
  96                                                         if (!_infscroll_request_sent) {
  97                                                                 catchup_timeout_id = window.setTimeout('catchupBatchedArticles()',
  98                                                                         2000);
  99                                                         }
 100                                                 }
 101
 102                                         });
 103                         } */
 104                 }
 105
 106                 if (offset == 0 && !background)
 107                         dijit.byId("content-tabs").selectChild(
 108                                 dijit.byId("content-tabs").getChildren()[0]);
 109
 110                 if (!background) {
 111                         _viewfeed_last = get_timestamp();
 112
 113                         if (getActiveFeedId() != feed || offset == 0) {
 114                                 active_post_id = 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 + "&m=" + param_escape(method);
 147
 148                 if (!background) {
 149                         if (_search_query) {
 150                                 force_nocache = true;
 151                                 query = query + "&" + _search_query;
 152                                 _search_query = false;
 153                         }
 154
 155                         if (offset != 0) {
 156                                 query = query + "&skip=" + offset;
 157
 158                                 // to prevent duplicate feed titles when showing grouped vfeeds
 159                                 if (vgroup_last_feed) {
 160                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 161                                 }
 162                         }
 163
 164                         Form.enable("main_toolbar_form");
 165
 166                         if (!offset)
 167                                 if (!is_cat) {
 168                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 169                                                 notify_progress("Loading, please wait...", true);
 170                                 } else {
 171                                         notify_progress("Loading, please wait...", true);
 172                                 }
 173                 }
 174
 175                 query += "&cat=" + is_cat;
 176                 query += "&include_children=" + dijit.byId("include_children").attr("checked");
 177
 178                 console.log(query);
 179
 180                 new Ajax.Request("backend.php", {
 181                         parameters: query,
 182                         onComplete: function(transport) {
 183                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 184                                 headlines_callback2(transport, offset, background, infscroll_req);
 185                         } });
 186
 187         } catch (e) {
 188                 exception_error("viewfeed", e);
 189         }
 190 }
 191
 192 function feedlist_init() {
 193         try {
 194                 console.log("in feedlist init");
 195
 196                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 197                 document.onkeydown = hotkey_handler;
 198                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 199
 200                  if (!getActiveFeedId()) {
 201                         setTimeout("viewfeed(-3)", 100);
 202                 }
 203
 204                 console.log("T:" +
 205                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 206
 207                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 208
 209                 setTimeout("timeout()", 5000);
 210                 setTimeout("precache_headlines_idle()", 15000);
 211
 212         } catch (e) {
 213                 exception_error("feedlist/init", e);
 214         }
 215 }
 216
 217 function request_counters_real() {
 218         try {
 219                 console.log("requesting counters...");
 220
 221                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 222
 223                 query = query + "&omode=flc";
 224
 225                 new Ajax.Request("backend.php", {
 226                         parameters: query,
 227                         onComplete: function(transport) {
 228                                 try {
 229                                         handle_rpc_json(transport);
 230                                 } catch (e) {
 231                                         exception_error("viewfeed/getcounters", e);
 232                                 }
 233                         } });
 234
 235         } catch (e) {
 236                 exception_error("request_counters_real", e);
 237         }
 238 }
 239
 240
 241 function request_counters() {
 242
 243         try {
 244
 245                 //if (getInitParam("bw_limit") == "1") return;
 246
 247                 var date = new Date();
 248                 var timestamp = Math.round(date.getTime() / 1000);
 249
 250                 if (timestamp - counters_last_request > 5) {
 251                         console.log("scheduling request of counters...");
 252
 253                         window.clearTimeout(counter_timeout_id);
 254                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 255
 256                         counters_last_request = timestamp;
 257                 } else {
 258                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 259                 }
 260
 261         } catch (e) {
 262                 exception_error("request_counters", e);
 263         }
 264 }
 265
 266 function displayNewContentPrompt(id) {
 267         try {
 268
 269                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 270                         __("New articles available in this feed (click to show)") + "</a>";
 271
 272                 msg = msg.replace("%s", getFeedName(id));
 273
 274                 $('auxDlg').innerHTML = msg;
 275
 276                 new Effect.Appear('auxDlg', {duration : 0.5});
 277
 278         } catch (e) {
 279                 exception_error("displayNewContentPrompt", e);
 280         }
 281 }
 282
 283 function parse_counters(elems, scheduled_call) {
 284         try {
 285                 for (var l = 0; l < elems.length; l++) {
 286
 287                         var id = elems[l].id;
 288                         var kind = elems[l].kind;
 289                         var ctr = parseInt(elems[l].counter);
 290                         var error = elems[l].error;
 291                         var has_img = elems[l].has_img;
 292                         var updated = elems[l].updated;
 293                         var child_unread = parseInt(elems[l].child_counter);
 294
 295                         if (id == "global-unread") {
 296                                 global_unread = ctr;
 297                                 updateTitle();
 298                                 continue;
 299                         }
 300
 301                         if (id == "subscribed-feeds") {
 302                                 feeds_found = ctr;
 303                                 continue;
 304                         }
 305
 306                         // TODO: enable new content notification for categories
 307
 308                         if (!activeFeedIsCat() && id == getActiveFeedId()
 309                                         && ctr > getFeedUnread(id) && scheduled_call) {
 310                                 displayNewContentPrompt(id);
 311                         }
 312
 313                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 314                                         (kind == "cat" && getCatParam(id) != child_unread)) {
 315
 316                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 317                         }
 318
 319                         setFeedUnread(id, (kind == "cat"), ctr);
 320
 321                         if (kind != "cat") {
 322                                 setFeedValue(id, false, 'error', error);
 323                                 setFeedValue(id, false, 'updated', updated);
 324
 325                                 if (id > 0) {
 326                                         if (has_img) {
 327                                                 setFeedIcon(id, false,
 328                                                         getInitParam("icons_url") + "/" + id + ".ico");
 329                                         } else {
 330                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 331                                         }
 332                                 }
 333                         } else {
 334                                 setCatParam(id, child_unread);
 335                         }
 336                 }
 337
 338                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 339
 340         } catch (e) {
 341                 exception_error("parse_counters", e);
 342         }
 343 }
 344
 345 function getFeedUnread(feed, is_cat) {
 346         try {
 347                 var tree = dijit.byId("feedTree");
 348
 349                 if (tree && tree.model)
 350                         return tree.model.getFeedUnread(feed, is_cat);
 351
 352         } catch (e) {
 353                 //
 354         }
 355
 356         return -1;
 357 }
 358
 359 function getFeedCategory(feed) {
 360         try {
 361                 var tree = dijit.byId("feedTree");
 362
 363                 if (tree && tree.model)
 364                         return tree.getFeedCategory(feed);
 365
 366         } catch (e) {
 367                 //
 368         }
 369
 370         return false;
 371 }
 372
 373 function hideOrShowFeeds(hide) {
 374         var tree = dijit.byId("feedTree");
 375
 376         if (tree)
 377                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 378 }
 379
 380 function getFeedName(feed, is_cat) {
 381         var tree = dijit.byId("feedTree");
 382
 383         if (tree && tree.model)
 384                 return tree.model.getFeedValue(feed, is_cat, 'name');
 385 }
 386
 387 function getFeedValue(feed, is_cat, key) {
 388         try {
 389                 var tree = dijit.byId("feedTree");
 390
 391                 if (tree && tree.model)
 392                         return tree.model.getFeedValue(feed, is_cat, key);
 393
 394         } catch (e) {
 395                 //
 396         }
 397         return '';
 398 }
 399
 400 function setFeedUnread(feed, is_cat, unread) {
 401         try {
 402                 var tree = dijit.byId("feedTree");
 403
 404                 if (tree && tree.model)
 405                         return tree.model.setFeedUnread(feed, is_cat, unread);
 406
 407         } catch (e) {
 408                 exception_error("setFeedUnread", e);
 409         }
 410 }
 411
 412 function setFeedValue(feed, is_cat, key, value) {
 413         try {
 414                 var tree = dijit.byId("feedTree");
 415
 416                 if (tree && tree.model)
 417                         return tree.model.setFeedValue(feed, is_cat, key, value);
 418
 419         } catch (e) {
 420                 //
 421         }
 422 }
 423
 424 function setCatParam(cat, value) {
 425         try {
 426                 var tree = dijit.byId("feedTree");
 427
 428                 if (tree && tree.model)
 429                         return tree.setCatParam(cat, value);
 430
 431         } catch (e) {
 432                 //
 433         }
 434 }
 435
 436 function getCatParam(cat) {
 437         try {
 438                 return getFeedValue(cat, true, "child_unread");
 439         } catch (e) {
 440                 //
 441         }
 442 }
 443
 444
 445 function selectFeed(feed, is_cat) {
 446         try {
 447                 var tree = dijit.byId("feedTree");
 448
 449                 if (tree) return tree.selectFeed(feed, is_cat);
 450
 451         } catch (e) {
 452                 exception_error("selectFeed", e);
 453         }
 454 }
 455
 456 function setFeedIcon(feed, is_cat, src) {
 457         try {
 458                 var tree = dijit.byId("feedTree");
 459
 460                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 461
 462         } catch (e) {
 463                 exception_error("setFeedIcon", e);
 464         }
 465 }
 466
 467 function setFeedExpandoIcon(feed, is_cat, src) {
 468         try {
 469                 var tree = dijit.byId("feedTree");
 470
 471                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 472
 473         } catch (e) {
 474                 exception_error("setFeedIcon", e);
 475         }
 476         return false;
 477 }
 478
 479 function getNextUnreadFeed(feed, is_cat) {
 480         try {
 481                 var tree = dijit.byId("feedTree");
 482                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 483
 484                 if (nuf)
 485                         return tree.model.store.getValue(nuf, 'bare_id');
 486
 487         } catch (e) {
 488                 exception_error("getNextUnreadFeed", e);
 489         }
 490 }
 491
 492 function catchupCurrentFeed() {
 493         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 494 }
 495
 496 function catchupFeedInGroup(id) {
 497         try {
 498
 499                 var title = getFeedName(id);
 500
 501                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 502
 503                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 504                         return viewCurrentFeed('MarkAllReadGR:' + id);
 505                 }
 506
 507         } catch (e) {
 508                 exception_error("catchupFeedInGroup", e);
 509         }
 510 }
 511
 512 function catchupFeed(feed, is_cat) {
 513         try {
 514                 if (is_cat == undefined) is_cat = false;
 515
 516                 var str = __("Mark all articles in %s as read?");
 517                 var fn = getFeedName(feed, is_cat);
 518
 519                 str = str.replace("%s", fn);
 520
 521                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 522                         return;
 523                 }
 524
 525                 var max_id = 0;
 526
 527                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 528                         $$("#headlines-frame > div[id*=RROW]").each(
 529                                 function(child) {
 530                                         var id = parseInt(child.id.replace("RROW-", ""));
 531
 532                                         if (id > max_id) max_id = id;
 533                                 }
 534                         );
 535                 }
 536
 537                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 538                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 539
 540                 console.log(catchup_query);
 541
 542                 notify_progress("Loading, please wait...", true);
 543
 544                 new Ajax.Request("backend.php", {
 545                         parameters: catchup_query,
 546                         onComplete: function(transport) {
 547                                         handle_rpc_json(transport);
 548
 549                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 550
 551                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 552                                                         function(child) {
 553                                                                 child.removeClassName("Unread");
 554                                                         }
 555                                                 );
 556                                         }
 557
 558                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 559
 560                                         if (show_next_feed) {
 561                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 562
 563                                                 if (nuf) {
 564                                                         viewfeed(nuf, '', is_cat);
 565                                                 }
 566                                         }
 567
 568                                         notify("");
 569                                 } });
 570
 571         } catch (e) {
 572                 exception_error("catchupFeed", e);
 573         }
 574 }
 575
 576 function decrementFeedCounter(feed, is_cat) {
 577         try {
 578                 // we have subcats, no way to figure out if this article is
 579                 // actually from this category
 580                 if (is_cat && getCatParam(feed) > 0)
 581                         return;
 582
 583                 var ctr = getFeedUnread(feed, is_cat);
 584
 585                 if (ctr > 0) {
 586                         setFeedUnread(feed, is_cat, ctr - 1);
 587
 588                         if (!is_cat) {
 589                                 var cat = parseInt(getFeedCategory(feed));
 590
 591                                 if (!isNaN(cat)) {
 592                                         ctr = getFeedUnread(cat, true);
 593
 594                                         if (ctr > 0) {
 595                                                 setFeedUnread(cat, true, ctr - 1);
 596                                         }
 597                                 }
 598                         }
 599                 }
 600
 601                 cache_delete("feed:" + feed + ":" + is_cat);
 602
 603         } catch (e) {
 604                 exception_error("decrement_feed_counter", e);
 605         }
 606 }