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 num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  23                 var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  24                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  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 = num_unread;
  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                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 315
 316                         setFeedUnread(id, (kind == "cat"), ctr);
 317
 318                         if (kind != "cat") {
 319                                 setFeedValue(id, false, 'error', error);
 320                                 setFeedValue(id, false, 'updated', updated);
 321
 322                                 if (id > 0) {
 323                                         if (has_img) {
 324                                                 setFeedIcon(id, false,
 325                                                         getInitParam("icons_url") + "/" + id + ".ico");
 326                                         } else {
 327                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 328                                         }
 329                                 }
 330                         } else {
 331                                 setCatParam(id, child_unread);
 332                         }
 333                 }
 334
 335                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 336
 337         } catch (e) {
 338                 exception_error("parse_counters", e);
 339         }
 340 }
 341
 342 function getFeedUnread(feed, is_cat) {
 343         try {
 344                 var tree = dijit.byId("feedTree");
 345
 346                 if (tree && tree.model)
 347                         return tree.model.getFeedUnread(feed, is_cat);
 348
 349         } catch (e) {
 350                 //
 351         }
 352
 353         return -1;
 354 }
 355
 356 function getFeedCategory(feed) {
 357         try {
 358                 var tree = dijit.byId("feedTree");
 359
 360                 if (tree && tree.model)
 361                         return tree.getFeedCategory(feed);
 362
 363         } catch (e) {
 364                 //
 365         }
 366
 367         return false;
 368 }
 369
 370 function hideOrShowFeeds(hide) {
 371         var tree = dijit.byId("feedTree");
 372
 373         if (tree)
 374                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 375 }
 376
 377 function getFeedName(feed, is_cat) {
 378         var tree = dijit.byId("feedTree");
 379
 380         if (tree && tree.model)
 381                 return tree.model.getFeedValue(feed, is_cat, 'name');
 382 }
 383
 384 function getFeedValue(feed, is_cat, key) {
 385         try {
 386                 var tree = dijit.byId("feedTree");
 387
 388                 if (tree && tree.model)
 389                         return tree.model.getFeedValue(feed, is_cat, key);
 390
 391         } catch (e) {
 392                 //
 393         }
 394         return '';
 395 }
 396
 397 function setFeedUnread(feed, is_cat, unread) {
 398         try {
 399                 var tree = dijit.byId("feedTree");
 400
 401                 if (tree && tree.model)
 402                         return tree.model.setFeedUnread(feed, is_cat, unread);
 403
 404         } catch (e) {
 405                 exception_error("setFeedUnread", e);
 406         }
 407 }
 408
 409 function setFeedValue(feed, is_cat, key, value) {
 410         try {
 411                 var tree = dijit.byId("feedTree");
 412
 413                 if (tree && tree.model)
 414                         return tree.model.setFeedValue(feed, is_cat, key, value);
 415
 416         } catch (e) {
 417                 //
 418         }
 419 }
 420
 421 function setCatParam(cat, value) {
 422         try {
 423                 var tree = dijit.byId("feedTree");
 424
 425                 if (tree && tree.model)
 426                         return tree.setCatParam(cat, value);
 427
 428         } catch (e) {
 429                 //
 430         }
 431 }
 432
 433
 434 function selectFeed(feed, is_cat) {
 435         try {
 436                 var tree = dijit.byId("feedTree");
 437
 438                 if (tree) return tree.selectFeed(feed, is_cat);
 439
 440         } catch (e) {
 441                 exception_error("selectFeed", e);
 442         }
 443 }
 444
 445 function setFeedIcon(feed, is_cat, src) {
 446         try {
 447                 var tree = dijit.byId("feedTree");
 448
 449                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 450
 451         } catch (e) {
 452                 exception_error("setFeedIcon", e);
 453         }
 454 }
 455
 456 function setFeedExpandoIcon(feed, is_cat, src) {
 457         try {
 458                 var tree = dijit.byId("feedTree");
 459
 460                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 461
 462         } catch (e) {
 463                 exception_error("setFeedIcon", e);
 464         }
 465         return false;
 466 }
 467
 468 function getNextUnreadFeed(feed, is_cat) {
 469         try {
 470                 var tree = dijit.byId("feedTree");
 471                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 472
 473                 if (nuf)
 474                         return tree.model.store.getValue(nuf, 'bare_id');
 475
 476         } catch (e) {
 477                 exception_error("getNextUnreadFeed", e);
 478         }
 479 }
 480
 481 function catchupCurrentFeed() {
 482         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 483 }
 484
 485 function catchupFeedInGroup(id) {
 486         try {
 487
 488                 var title = getFeedName(id);
 489
 490                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 491
 492                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 493                         return viewCurrentFeed('MarkAllReadGR:' + id);
 494                 }
 495
 496         } catch (e) {
 497                 exception_error("catchupFeedInGroup", e);
 498         }
 499 }
 500
 501 function catchupFeed(feed, is_cat) {
 502         try {
 503                 if (is_cat == undefined) is_cat = false;
 504
 505                 var str = __("Mark all articles in %s as read?");
 506                 var fn = getFeedName(feed, is_cat);
 507
 508                 str = str.replace("%s", fn);
 509
 510                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 511                         return;
 512                 }
 513
 514                 var max_id = 0;
 515
 516                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 517                         $$("#headlines-frame > div[id*=RROW]").each(
 518                                 function(child) {
 519                                         var id = parseInt(child.id.replace("RROW-", ""));
 520
 521                                         if (id > max_id) max_id = id;
 522                                 }
 523                         );
 524                 }
 525
 526                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 527                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 528
 529                 console.log(catchup_query);
 530
 531                 notify_progress("Loading, please wait...", true);
 532
 533                 new Ajax.Request("backend.php", {
 534                         parameters: catchup_query,
 535                         onComplete: function(transport) {
 536                                         handle_rpc_json(transport);
 537
 538                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 539
 540                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 541                                                         function(child) {
 542                                                                 child.removeClassName("Unread");
 543                                                         }
 544                                                 );
 545                                         }
 546
 547                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 548
 549                                         if (show_next_feed) {
 550                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 551
 552                                                 if (nuf) {
 553                                                         viewfeed(nuf, '', is_cat);
 554                                                 }
 555                                         }
 556
 557                                         notify("");
 558                                 } });
 559
 560         } catch (e) {
 561                 exception_error("catchupFeed", e);
 562         }
 563 }
 564
 565 function decrementFeedCounter(feed, is_cat) {
 566         try {
 567                 var ctr = getFeedUnread(feed, is_cat);
 568
 569                 if (ctr > 0) {
 570                         setFeedUnread(feed, is_cat, ctr - 1);
 571
 572                         if (!is_cat) {
 573                                 var cat = parseInt(getFeedCategory(feed));
 574
 575                                 if (!isNaN(cat)) {
 576                                         ctr = getFeedUnread(cat, true);
 577
 578                                         if (ctr > 0) {
 579                                                 setFeedUnread(cat, true, ctr - 1);
 580                                         }
 581                                 }
 582                         }
 583                 }
 584
 585                 cache_delete("feed:" + feed + ":" + is_cat);
 586
 587         } catch (e) {
 588                 exception_error("decrement_feed_counter", e);
 589         }
 590 }