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 (!background && _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;
 153
 154                 if (method) {
 155                         query = query + "&m=" + param_escape(method);
 156                 }
 157
 158                 if (!background) {
 159                         if (_search_query) {
 160                                 force_nocache = true;
 161                                 query = query + "&" + _search_query;
 162                                 //_search_query = false;
 163                         }
 164
 165                         if (offset != 0) {
 166                                 query = query + "&skip=" + offset;
 167
 168                                 // to prevent duplicate feed titles when showing grouped vfeeds
 169                                 if (vgroup_last_feed) {
 170                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 171                                 }
 172                         } else {
 173                                 if (!method && !is_cat && feed == getActiveFeedId()) {
 174                                         query = query + "&m=ForceUpdate";
 175                                 }
 176                         }
 177
 178                         Form.enable("main_toolbar_form");
 179
 180                         if (!offset)
 181                                 if (!is_cat) {
 182                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 183                                                 notify_progress("Loading, please wait...", true);
 184                                 } else {
 185                                         notify_progress("Loading, please wait...", true);
 186                                 }
 187                 }
 188
 189                 query += "&cat=" + is_cat;
 190
 191                 console.log(query);
 192
 193                 new Ajax.Request("backend.php", {
 194                         parameters: query,
 195                         onComplete: function(transport) {
 196                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 197                                 headlines_callback2(transport, offset, background, infscroll_req);
 198                         } });
 199
 200         } catch (e) {
 201                 exception_error("viewfeed", e);
 202         }
 203 }
 204
 205 function feedlist_init() {
 206         try {
 207                 console.log("in feedlist init");
 208
 209                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 210                 document.onkeydown = hotkey_handler;
 211                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 212
 213                  if (!getActiveFeedId()) {
 214                         setTimeout("viewfeed(-3)", 100);
 215                 }
 216
 217                 console.log("T:" +
 218                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 219
 220                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 221
 222                 setTimeout("timeout()", 5000);
 223                 setTimeout("precache_headlines_idle()", 15000);
 224
 225         } catch (e) {
 226                 exception_error("feedlist/init", e);
 227         }
 228 }
 229
 230 function request_counters_real() {
 231         try {
 232                 console.log("requesting counters...");
 233
 234                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 235
 236                 query = query + "&omode=flc";
 237
 238                 new Ajax.Request("backend.php", {
 239                         parameters: query,
 240                         onComplete: function(transport) {
 241                                 try {
 242                                         handle_rpc_json(transport);
 243                                 } catch (e) {
 244                                         exception_error("viewfeed/getcounters", e);
 245                                 }
 246                         } });
 247
 248         } catch (e) {
 249                 exception_error("request_counters_real", e);
 250         }
 251 }
 252
 253
 254 function request_counters() {
 255
 256         try {
 257
 258                 //if (getInitParam("bw_limit") == "1") return;
 259
 260                 var date = new Date();
 261                 var timestamp = Math.round(date.getTime() / 1000);
 262
 263                 if (timestamp - counters_last_request > 5) {
 264                         console.log("scheduling request of counters...");
 265
 266                         window.clearTimeout(counter_timeout_id);
 267                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 268
 269                         counters_last_request = timestamp;
 270                 } else {
 271                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 272                 }
 273
 274         } catch (e) {
 275                 exception_error("request_counters", e);
 276         }
 277 }
 278
 279 function displayNewContentPrompt(id) {
 280         try {
 281
 282                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 283                         __("New articles available in this feed (click to show)") + "</a>";
 284
 285                 msg = msg.replace("%s", getFeedName(id));
 286
 287                 $('auxDlg').innerHTML = msg;
 288
 289                 new Effect.Appear('auxDlg', {duration : 0.5});
 290
 291         } catch (e) {
 292                 exception_error("displayNewContentPrompt", e);
 293         }
 294 }
 295
 296 function parse_counters(elems, scheduled_call) {
 297         try {
 298                 for (var l = 0; l < elems.length; l++) {
 299
 300                         var id = elems[l].id;
 301                         var kind = elems[l].kind;
 302                         var ctr = parseInt(elems[l].counter);
 303                         var error = elems[l].error;
 304                         var has_img = elems[l].has_img;
 305                         var updated = elems[l].updated;
 306
 307                         if (id == "global-unread") {
 308                                 global_unread = ctr;
 309                                 updateTitle();
 310                                 continue;
 311                         }
 312
 313                         if (id == "subscribed-feeds") {
 314                                 feeds_found = ctr;
 315                                 continue;
 316                         }
 317
 318                         // TODO: enable new content notification for categories
 319
 320                         if (!activeFeedIsCat() && id == getActiveFeedId()
 321                                         && ctr > getFeedUnread(id) && scheduled_call) {
 322                                 displayNewContentPrompt(id);
 323                         }
 324
 325                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 326                                         (kind == "cat")) {
 327
 328                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 329                         }
 330
 331                         setFeedUnread(id, (kind == "cat"), ctr);
 332
 333                         if (kind != "cat") {
 334                                 setFeedValue(id, false, 'error', error);
 335                                 setFeedValue(id, false, 'updated', updated);
 336
 337                                 if (id > 0) {
 338                                         if (has_img) {
 339                                                 setFeedIcon(id, false,
 340                                                         getInitParam("icons_url") + "/" + id + ".ico");
 341                                         } else {
 342                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 343                                         }
 344                                 }
 345                         }
 346                 }
 347
 348                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 349
 350         } catch (e) {
 351                 exception_error("parse_counters", e);
 352         }
 353 }
 354
 355 function getFeedUnread(feed, is_cat) {
 356         try {
 357                 var tree = dijit.byId("feedTree");
 358
 359                 if (tree && tree.model)
 360                         return tree.model.getFeedUnread(feed, is_cat);
 361
 362         } catch (e) {
 363                 //
 364         }
 365
 366         return -1;
 367 }
 368
 369 function getFeedCategory(feed) {
 370         try {
 371                 var tree = dijit.byId("feedTree");
 372
 373                 if (tree && tree.model)
 374                         return tree.getFeedCategory(feed);
 375
 376         } catch (e) {
 377                 //
 378         }
 379
 380         return false;
 381 }
 382
 383 function hideOrShowFeeds(hide) {
 384         var tree = dijit.byId("feedTree");
 385
 386         if (tree)
 387                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 388 }
 389
 390 function getFeedName(feed, is_cat) {
 391         var tree = dijit.byId("feedTree");
 392
 393         if (tree && tree.model)
 394                 return tree.model.getFeedValue(feed, is_cat, 'name');
 395 }
 396
 397 function getFeedValue(feed, is_cat, key) {
 398         try {
 399                 var tree = dijit.byId("feedTree");
 400
 401                 if (tree && tree.model)
 402                         return tree.model.getFeedValue(feed, is_cat, key);
 403
 404         } catch (e) {
 405                 //
 406         }
 407         return '';
 408 }
 409
 410 function setFeedUnread(feed, is_cat, unread) {
 411         try {
 412                 var tree = dijit.byId("feedTree");
 413
 414                 if (tree && tree.model)
 415                         return tree.model.setFeedUnread(feed, is_cat, unread);
 416
 417         } catch (e) {
 418                 exception_error("setFeedUnread", e);
 419         }
 420 }
 421
 422 function setFeedValue(feed, is_cat, key, value) {
 423         try {
 424                 var tree = dijit.byId("feedTree");
 425
 426                 if (tree && tree.model)
 427                         return tree.model.setFeedValue(feed, is_cat, key, value);
 428
 429         } catch (e) {
 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 }