feedlist.js

   1 var _feed_cur_page = 0;
   2 var _infscroll_disable = 0;
   3 var _infscroll_request_sent = 0;
   4 var feed_under_pointer = undefined;
   5
   6 var mouse_is_down = false;
   7 var mouse_y = 0;
   8 var mouse_x = 0;
   9
  10 var counter_timeout_id = false;
  11
  12 var resize_enabled = false;
  13 var selection_disabled = false;
  14 var counters_last_request = 0;
  15
  16 function toggle_sortable_feedlist(enabled) {
  17         try {
  18
  19                 if (enabled) {
  20                         Sortable.create('feedList', {onChange: feedlist_dragsorted, only: "feedCat"});
  21                 } else {
  22                         Sortable.destroy('feedList');
  23                 }
  24
  25         } catch (e) {
  26                 exception_error("toggle_sortable_feedlist", e);
  27         }
  28 }
  29
  30 function viewCategory(cat) {
  31         viewfeed(cat, '', true);
  32         return false;
  33 }
  34
  35 function render_feedlist(data) {
  36         try {
  37
  38                 var f = $("feeds-frame");
  39                 f.innerHTML = data;
  40 //              cache_invalidate("FEEDLIST");
  41 //              cache_inject("FEEDLIST", data, getInitParam("num_feeds"));
  42                 feedlist_init();
  43
  44         } catch (e) {
  45                 exception_error("render_feedlist", e);
  46         }
  47 }
  48
  49 function viewNextFeedPage() {
  50         try {
  51                 //if (!getActiveFeedId()) return;
  52
  53                 console.log("viewNextFeedPage: calling viewfeed(), p: " + parseInt(_feed_cur_page+1));
  54
  55                 viewfeed(getActiveFeedId(), undefined, activeFeedIsCat(), undefined,
  56                         undefined, parseInt(_feed_cur_page+1));
  57
  58         } catch (e) {
  59                 exception_error("viewNextFeedPage", e);
  60         }
  61 }
  62
  63
  64 function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
  65         try {
  66
  67                 if (offline_mode) return viewfeed_offline(feed, subop, is_cat, subop_param,
  68                         skip_history, offset);
  69
  70 //              if (!offset) page_offset = 0;
  71
  72                 last_requested_article = 0;
  73                 //counters_last_request = 0;
  74
  75                 if (feed == getActiveFeedId()) {
  76                         cache_invalidate("F:" + feed);
  77                 }
  78
  79 /*              if (getInitParam("theme") == "" || getInitParam("theme") == "compact") {
  80                         if (getInitParam("hide_feedlist") == 1) {
  81                                 Element.hide("feeds-holder");
  82                         }
  83                 } */
  84
  85                 var force_nocache = false;
  86
  87                 var page_offset = 0;
  88
  89                 if (offset > 0) {
  90                         page_offset = offset;
  91                 } else {
  92                         page_offset = 0;
  93                         _feed_cur_page = 0;
  94                         _infscroll_disable = 0;
  95                 }
  96
  97                 if (getActiveFeedId() != feed) {
  98                         _feed_cur_page = 0;
  99                         active_post_id = 0;
 100                         _infscroll_disable = 0;
 101                 }
 102
 103                 if (page_offset != 0 && !subop) {
 104                         var date = new Date();
 105                         var timestamp = Math.round(date.getTime() / 1000);
 106
 107                         console.log(_infscroll_request_sent + " : " + timestamp);
 108
 109                         if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 110                                 console.log("infscroll request in progress, aborting");
 111                                 return;
 112                         }
 113
 114                         _infscroll_request_sent = timestamp;
 115                 }
 116
 117                 enableHotkeys();
 118                 hideAuxDlg();
 119                 closeInfoBox();
 120
 121                 Form.enable("main_toolbar_form");
 122
 123                 var toolbar_form = document.forms["main_toolbar_form"];
 124                 var toolbar_query = Form.serialize("main_toolbar_form");
 125
 126                 if (toolbar_form.query) {
 127                         if (toolbar_form.query.value != "") {
 128                                 force_nocache = true;
 129                         }
 130                         toolbar_form.query.value = "";
 131                 }
 132
 133                 var query = "?op=viewfeed&feed=" + feed + "&" +
 134                         toolbar_query + "&subop=" + param_escape(subop);
 135
 136                 if ($("search_form")) {
 137                         var search_query = Form.serialize("search_form");
 138                         query = query + "&" + search_query;
 139                         $("search_form").query.value = "";
 140                         closeInfoBox(true);
 141                         force_nocache = true;
 142                 }
 143
 144 //              console.log("IS_CAT_STORED: " + activeFeedIsCat() + ", IS_CAT: " + is_cat);
 145
 146                 if (subop == "MarkAllRead") {
 147
 148                         catchup_local_feed(feed, is_cat);
 149
 150                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 151
 152                         if (show_next_feed) {
 153
 154                                 if (!activeFeedIsCat()) {
 155
 156                                         var feedlist = $('feedList');
 157
 158                                         var next_unread_feed = getRelativeFeedId2(feed, false,
 159                                                         "next", true);
 160
 161                                         /* gRFI2 also returns categories which we don't really
 162                                          * need here, so we skip them */
 163
 164                                         while (next_unread_feed && next_unread_feed.match("CAT:"))
 165                                                 next_unread_feed = getRelativeFeedId2(
 166                                                                 next_unread_feed.replace("CAT:", ""),
 167                                                                 true, "next", true);
 168
 169                                         if (!next_unread_feed) {
 170                                                 next_unread_feed = getRelativeFeedId2(-3, true,
 171                                                         "next", true);
 172                                         }
 173
 174                                         if (next_unread_feed) {
 175                                                 query = query + "&nuf=" + param_escape(next_unread_feed);
 176                                                 //setActiveFeedId(next_unread_feed);
 177                                                 feed = next_unread_feed;
 178                                         }
 179                                 } else {
 180
 181                                         var next_unread_feed = getNextUnreadCat(feed);
 182
 183                                         /* we don't need to specify that our next feed is actually
 184                                         a category, because we're in the is_cat mode by definition
 185                                         already */
 186
 187                                         if (next_unread_feed && show_next_feed) {
 188                                                 query = query + "&nuf=" + param_escape(next_unread_feed);
 189                                                 feed = next_unread_feed;
 190                                         }
 191
 192                                 }
 193                         }
 194                 }
 195
 196                 if (is_cat) {
 197                         query = query + "&cat=1";
 198                 }
 199
 200                 if (page_offset != 0) {
 201                         query = query + "&skip=" + page_offset;
 202
 203                         // to prevent duplicate feed titles when showing grouped vfeeds
 204                         if (vgroup_last_feed) {
 205                                 query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 206                         }
 207                 }
 208
 209                 Form.enable("main_toolbar_form");
 210
 211                 // for piggybacked counters
 212
 213                 if (tagsAreDisplayed()) {
 214                         query = query + "&omode=lt";
 215                 } else {
 216                         query = query + "&omode=flc";
 217                 }
 218
 219                 console.log(query);
 220
 221                 var container = $("headlinesInnerContainer");
 222
 223 /*              if (container && page_offset == 0 && !isCdmMode()) {
 224                         new Effect.Fade(container, {duration: 1, to: 0.01,
 225                                 queue: { position:'end', scope: 'FEEDL-' + feed, limit: 1 } } );
 226                 } */
 227
 228                 var unread_ctr = -1;
 229
 230                 if (!is_cat) unread_ctr = get_feed_unread(feed);
 231
 232                 var cache_check = false;
 233
 234                 if (unread_ctr != -1 && !page_offset && !force_nocache && !subop) {
 235
 236                         var cache_prefix = "";
 237
 238                         if (is_cat) {
 239                                 cache_prefix = "C:";
 240                         } else {
 241                                 cache_prefix = "F:";
 242                         }
 243
 244                         cache_check = cache_check_param(cache_prefix + feed, unread_ctr);
 245                         console.log("headline cache check: " + cache_check);
 246                 }
 247
 248                 if (cache_check) {
 249                         var f = $("headlines-frame");
 250
 251                         clean_feed_selections();
 252
 253                         setActiveFeedId(feed, is_cat);
 254
 255                         if (!is_cat) {
 256                                 var feedr = $("FEEDR-" + feed);
 257                                 if (feedr && !feedr.className.match("Selected")) {
 258                                         feedr.className = feedr.className + "Selected";
 259                                 }
 260                         } else {
 261                                 var feedr = $("FCAT-" + feed_id);
 262                                 if (feedr && !feedr.className.match("Selected")) {
 263                                         feedr.className = feedr.className + "Selected";
 264                                 }
 265                         }
 266
 267                         f.innerHTML = cache_find_param(cache_prefix + feed, unread_ctr);
 268
 269                         request_counters();
 270                         remove_splash();
 271
 272                 } else {
 273
 274                         if (!page_offset) {
 275                                 var feedr;
 276
 277                                 if (is_cat) {
 278                                         feedr = $('FCAP-' + feed);
 279                                 } else {
 280                                         feedr = $('FEEDR-' + feed);
 281                                 }
 282
 283                                 if (feedr && !$('FLL-' + feed)) {
 284
 285                                         var img = $('FIMG-' + feed);
 286
 287                                         if (!is_cat && img) {
 288
 289                                                 if (!img.src.match("indicator_white")) {
 290                                                         img.alt = img.src;
 291                                                         img.src = getInitParam("sign_progress");
 292                                                 }
 293
 294                                         } else {
 295
 296                                                 if (!$('FLL-' + feed)) {
 297                                                         var ll = document.createElement('img');
 298
 299                                                         ll.src = getInitParam("sign_progress_tiny");
 300                                                         ll.className = 'hlLoading';
 301                                                         ll.id = 'FLL-' + feed;
 302
 303                                                         feedr.appendChild(ll);
 304                                                 }
 305                                         }
 306                                 }
 307                         }
 308
 309                         new Ajax.Request("backend.php", {
 310                                 parameters: query,
 311                                 onComplete: function(transport) {
 312                                         headlines_callback2(transport, page_offset);
 313                                 } });
 314                 }
 315
 316         } catch (e) {
 317                 exception_error("viewfeed", e);
 318         }
 319 }
 320
 321 function toggleCollapseCat_af(effect) {
 322         //var caption = elem.id.replace("FCATLIST-", "");
 323
 324         try {
 325
 326                 var elem = effect.element;
 327                 var cat = elem.id.replace("FCATLIST-", "");
 328                 var cap = $("FCAP-" + cat);
 329
 330                 if (Element.visible(elem)) {
 331                         cap.innerHTML = cap.innerHTML.replace("…", "");
 332                 } else {
 333                         if (cap.innerHTML.lastIndexOf("…") != cap.innerHTML.length-3) {
 334                                 cap.innerHTML = cap.innerHTML + "…";
 335                         }
 336                 }
 337
 338         } catch (e) {
 339                 exception_error("toggleCollapseCat_af", e);
 340         }
 341 }
 342
 343 function toggleCollapseCat(cat) {
 344         try {
 345
 346                 var cat_elem = $("FCAT-" + cat);
 347                 var cat_list = $("FCATLIST-" + cat).parentNode;
 348                 var caption = $("FCAP-" + cat);
 349
 350                 Effect.toggle('FCATLIST-' + cat, 'blind', { duration: 0.5,
 351                         afterFinish: toggleCollapseCat_af });
 352
 353                 new Ajax.Request("backend.php",
 354                         { parameters: "backend.php?op=feeds&subop=collapse&cid=" +
 355                                 param_escape(cat) } );
 356
 357                 local_collapse_cat(cat);
 358
 359         } catch (e) {
 360                 exception_error("toggleCollapseCat", e);
 361         }
 362 }
 363
 364 function feedlist_dragsorted(ctr) {
 365         try {
 366                 var elem = $("feedList");
 367
 368                 var cats = elem.getElementsByTagName("LI");
 369                 var ordered_cats = new Array();
 370
 371                 for (var i = 0; i < cats.length; i++) {
 372                         if (cats[i].id && cats[i].id.match("FCAT-")) {
 373                                 ordered_cats.push(cats[i].id.replace("FCAT-", ""));
 374                         }
 375                 }
 376
 377                 if (ordered_cats.length > 0) {
 378
 379                         var query = "?op=feeds&subop=catsort&corder=" +
 380                                 param_escape(ordered_cats.toString());
 381
 382                         //console.log(query);
 383
 384                         new Ajax.Request("backend.php", { parameters: query });
 385                 }
 386
 387         } catch (e) {
 388                 exception_error("feedlist_dragsorted", e);
 389         }
 390 }
 391
 392 function feedlist_init() {
 393         try {
 394                 loading_set_progress(90);
 395
 396                 //console.log("in feedlist init");
 397
 398                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 399                 document.onkeydown = hotkey_handler;
 400                 document.onmousemove = mouse_move_handler;
 401                 document.onmousedown = mouse_down_handler;
 402                 document.onmouseup = mouse_up_handler;
 403
 404                 if (!offline_mode) setTimeout("timeout()", 1);
 405
 406                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 407
 408                 if (getActiveFeedId()) {
 409                         //console.log("some feed is open on feedlist refresh, reloading");
 410                         //setTimeout("viewCurrentFeed()", 100);
 411                 } else {
 412                         if (getInitParam("cdm_auto_catchup") != 1 && get_feed_unread(-3) > 0) {
 413                                 notify_silent_next();
 414                                 setTimeout("viewfeed(-3)", 100);
 415                         } else {
 416                                 setTimeout("viewfeed(-5)", 100);
 417                                 remove_splash();
 418                         }
 419                 }
 420
 421                 if (getInitParam("theme") == "" ||
 422                                 getInitParam("theme_options").match("hide_footer")) {
 423                         setTimeout("hide_footer()", 5000);
 424                 }
 425
 426                 init_collapsable_feedlist(getInitParam("theme"));
 427
 428                 toggle_sortable_feedlist(isFeedlistSortable());
 429
 430         } catch (e) {
 431                 exception_error("feedlist/init", e);
 432         }
 433 }
 434
 435 function hide_footer_af(effect) {
 436         try {
 437                 var c = $("content-frame");
 438
 439                 if (c) {
 440                         c.style.bottom = "0px";
 441
 442                         var ioa = $("inline_orig_article");
 443
 444                         if (ioa) {
 445                                 ioa.height = c.offsetHeight;
 446                         }
 447
 448                 } else {
 449                         var h = $("headlines-frame");
 450
 451                         if (h) {
 452                                 h.style.bottom = "0px";
 453                         }
 454                 }
 455
 456         } catch (e) {
 457                 exception_error("hide_footer_af", e);
 458         }
 459 }
 460
 461 function hide_footer() {
 462         try {
 463                 if (Element.visible("footer")) {
 464                         new Effect.Fade("footer", { afterFinish: hide_footer_af });
 465                 }
 466         } catch (e) {
 467                 exception_error("hide_footer", e);
 468         }
 469 }
 470
 471 function init_collapsable_feedlist() {
 472         try {
 473                 //console.log("init_collapsable_feedlist");
 474
 475                 var theme = getInitParam("theme");
 476                 var options = getInitParam("theme_options");
 477
 478                 if (theme != "" && !options.match("collapse_feedlist")) return;
 479
 480                 var fbtn = $("collapse_feeds_btn");
 481
 482                 if (fbtn) Element.show(fbtn);
 483
 484                 if (getInitParam("collapsed_feedlist") == 1) {
 485                         collapse_feedlist();
 486                 }
 487
 488         } catch (e) {
 489                 exception_error("init_hidden_feedlist", e);
 490         }
 491
 492 }
 493
 494 function mouse_move_handler(e) {
 495         try {
 496                 var client_y;
 497                 var client_x;
 498
 499                 if (window.event) {
 500                         client_y = window.event.clientY;
 501                         client_x = window.event.clientX;
 502                 } else if (e) {
 503                         client_x = e.screenX;
 504                         client_y = e.screenY;
 505                 }
 506
 507                 if (mouse_is_down) {
 508
 509                         if (mouse_y == 0) mouse_y = client_y;
 510                         if (mouse_x == 0) mouse_x = client_x;
 511
 512                         resize_headlines(mouse_x - client_x, mouse_y - client_y);
 513
 514                         mouse_y = client_y;
 515                         mouse_x = client_x;
 516
 517                         return false;
 518                 }
 519
 520         } catch (e) {
 521                 exception_error("mouse_move_handler", e);
 522         }
 523 }
 524
 525 function enable_selection(b) {
 526         selection_disabled = !b;
 527 }
 528
 529 function enable_resize(b) {
 530         resize_enabled = b;
 531 }
 532
 533 function mouse_down_handler(e) {
 534         try {
 535
 536                 /* do not prevent right click */
 537                 if (e && e.button && e.button == 2) return;
 538
 539                 if (resize_enabled) {
 540                         mouse_is_down = true;
 541                         mouse_x = 0;
 542                         mouse_y = 0;
 543                         document.onselectstart = function() { return false; };
 544                         return false;
 545                 }
 546
 547                 if (selection_disabled) {
 548                         document.onselectstart = function() { return false; };
 549                         return false;
 550                 }
 551
 552         } catch (e) {
 553                 exception_error("mouse_down_handler", e);
 554         }
 555 }
 556
 557 function mouse_up_handler(e) {
 558         try {
 559                 mouse_is_down = false;
 560
 561                 if (!selection_disabled) {
 562                         document.onselectstart = null;
 563                         var e = $("headlineActionsBody");
 564                         if (e) Element.hide(e);
 565
 566                         var e = $("offlineModeDrop");
 567                         if (e) Element.hide(e);
 568
 569                 }
 570
 571         } catch (e) {
 572                 exception_error("mouse_up_handler", e);
 573         }
 574 }
 575
 576 function request_counters_real() {
 577
 578         try {
 579
 580                 if (offline_mode) return;
 581
 582                 console.log("requesting counters...");
 583
 584                 var query = "?op=rpc&subop=getAllCounters";
 585
 586                 if (tagsAreDisplayed()) {
 587                         query = query + "&omode=tl";
 588                 } else {
 589                         query = query + "&omode=flc";
 590                 }
 591
 592                 new Ajax.Request("backend.php", {
 593                         parameters: query,
 594                         onComplete: function(transport) {
 595                                 try {
 596                                         handle_rpc_reply(transport);
 597                                 } catch (e) {
 598                                         exception_error("viewfeed/getcounters", e);
 599                                 }
 600                         } });
 601
 602         } catch (e) {
 603                 exception_error("request_counters_real", e);
 604         }
 605 }
 606
 607
 608 function request_counters() {
 609
 610         try {
 611
 612                 if (getInitParam("bw_limit") == "1") return;
 613
 614                 var date = new Date();
 615                 var timestamp = Math.round(date.getTime() / 1000);
 616
 617                 if (timestamp - counters_last_request > 5) {
 618                         console.log("scheduling request of counters...");
 619
 620                         window.clearTimeout(counter_timeout_id);
 621                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 622
 623                         counters_last_request = timestamp;
 624                 } else {
 625                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 626                 }
 627
 628         } catch (e) {
 629                 exception_error("request_counters", e);
 630         }
 631 }
 632
 633