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 resize_enabled = false;
  11 var selection_disabled = false;
  12 var counters_last_request = 0;
  13
  14 function toggle_sortable_feedlist(enabled) {
  15         try {
  16
  17                 if (enabled) {
  18                         Sortable.create('feedList', {onChange: feedlist_dragsorted, only: "feedCat"});
  19                 } else {
  20                         Sortable.destroy('feedList');
  21                 }
  22
  23         } catch (e) {
  24                 exception_error("toggle_sortable_feedlist", e);
  25         }
  26 }
  27
  28 function viewCategory(cat) {
  29         viewfeed(cat, '', true);
  30         return false;
  31 }
  32
  33 function render_feedlist(data) {
  34         try {
  35
  36                 var f = $("feeds-frame");
  37                 f.innerHTML = data;
  38 //              cache_invalidate("FEEDLIST");
  39 //              cache_inject("FEEDLIST", data, getInitParam("num_feeds"));
  40                 feedlist_init();
  41
  42         } catch (e) {
  43                 exception_error("render_feedlist", e);
  44         }
  45 }
  46
  47 function feedlist_callback2(transport) {
  48         try {
  49                 debug("feedlist_callback2");
  50                 if (!transport_error_check(transport)) return;
  51                 render_feedlist(transport.responseText);
  52         } catch (e) {
  53                 exception_error("feedlist_callback2", e);
  54         }
  55 }
  56
  57 function viewNextFeedPage() {
  58         try {
  59                 //if (!getActiveFeedId()) return;
  60
  61                 debug("viewNextFeedPage: calling viewfeed(), p: " + parseInt(_feed_cur_page+1));
  62
  63                 viewfeed(getActiveFeedId(), undefined, activeFeedIsCat(), undefined,
  64                         undefined, parseInt(_feed_cur_page+1));
  65
  66         } catch (e) {
  67                 exception_error("viewNextFeedPage", e);
  68         }
  69 }
  70
  71
  72 function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
  73         try {
  74
  75                 if (offline_mode) return viewfeed_offline(feed, subop, is_cat, subop_param,
  76                         skip_history, offset);
  77
  78 //              if (!offset) page_offset = 0;
  79
  80                 last_requested_article = 0;
  81                 //counters_last_request = 0;
  82
  83                 if (feed == getActiveFeedId()) {
  84                         cache_invalidate("F:" + feed);
  85                 }
  86
  87 /*              if (getInitParam("theme") == "" || getInitParam("theme") == "compact") {
  88                         if (getInitParam("hide_feedlist") == 1) {
  89                                 Element.hide("feeds-holder");
  90                         }
  91                 } */
  92
  93                 var force_nocache = false;
  94
  95                 var page_offset = 0;
  96
  97                 if (offset > 0) {
  98                         page_offset = offset;
  99                 } else {
 100                         page_offset = 0;
 101                         _feed_cur_page = 0;
 102                         _infscroll_disable = 0;
 103                 }
 104
 105                 if (getActiveFeedId() != feed) {
 106                         _feed_cur_page = 0;
 107                         active_post_id = 0;
 108                         _infscroll_disable = 0;
 109                 }
 110
 111                 if (page_offset != 0 && !subop) {
 112                         var date = new Date();
 113                         var timestamp = Math.round(date.getTime() / 1000);
 114
 115                         debug("<b>" + _infscroll_request_sent + " : " + timestamp + "</b>");
 116
 117                         if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 118                                 debug("infscroll request in progress, aborting");
 119                                 return;
 120                         }
 121
 122                         _infscroll_request_sent = timestamp;
 123                 }
 124
 125                 enableHotkeys();
 126                 hideAuxDlg();
 127                 closeInfoBox();
 128
 129                 Form.enable("main_toolbar_form");
 130
 131                 var toolbar_form = document.forms["main_toolbar_form"];
 132                 var toolbar_query = Form.serialize("main_toolbar_form");
 133
 134                 if (toolbar_form.query) {
 135                         if (toolbar_form.query.value != "") {
 136                                 force_nocache = true;
 137                         }
 138                         toolbar_form.query.value = "";
 139                 }
 140
 141                 var query = "?op=viewfeed&feed=" + feed + "&" +
 142                         toolbar_query + "&subop=" + param_escape(subop);
 143
 144                 if ($("search_form")) {
 145                         var search_query = Form.serialize("search_form");
 146                         query = query + "&" + search_query;
 147                         $("search_form").query.value = "";
 148                         closeInfoBox(true);
 149                         force_nocache = true;
 150                 }
 151
 152 //              debug("IS_CAT_STORED: " + activeFeedIsCat() + ", IS_CAT: " + is_cat);
 153
 154                 if (subop == "MarkAllRead") {
 155
 156                         catchup_local_feed(feed, is_cat);
 157
 158                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 159
 160                         if (show_next_feed) {
 161
 162                                 if (!activeFeedIsCat()) {
 163
 164                                         var feedlist = $('feedList');
 165
 166                                         var next_unread_feed = getRelativeFeedId(feedlist,
 167                                                         feed, "next", true);
 168
 169                                         if (!next_unread_feed) {
 170                                                 next_unread_feed = getRelativeFeedId(feedlist,
 171                                                         -3, "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                 if (!async_counters_work) {
 220                         query = query + "&csync=true";
 221                 }
 222
 223                 debug(query);
 224
 225                 var container = $("headlinesInnerContainer");
 226
 227 /*              if (container && page_offset == 0 && !isCdmMode()) {
 228                         new Effect.Fade(container, {duration: 1, to: 0.01,
 229                                 queue: { position:'end', scope: 'FEEDL-' + feed, limit: 1 } } );
 230                 } */
 231
 232                 var unread_ctr = -1;
 233
 234                 if (!is_cat) unread_ctr = get_feed_unread(feed);
 235
 236                 var cache_check = false;
 237
 238                 if (unread_ctr != -1 && !page_offset && !force_nocache && !subop) {
 239
 240                         var cache_prefix = "";
 241
 242                         if (is_cat) {
 243                                 cache_prefix = "C:";
 244                         } else {
 245                                 cache_prefix = "F:";
 246                         }
 247
 248                         cache_check = cache_check_param(cache_prefix + feed, unread_ctr);
 249                         debug("headline cache check: " + cache_check);
 250                 }
 251
 252                 if (cache_check) {
 253                         var f = $("headlines-frame");
 254
 255                         clean_feed_selections();
 256
 257                         setActiveFeedId(feed, is_cat);
 258
 259                         if (!is_cat) {
 260                                 var feedr = $("FEEDR-" + feed);
 261                                 if (feedr && !feedr.className.match("Selected")) {
 262                                         feedr.className = feedr.className + "Selected";
 263                                 }
 264                         } else {
 265                                 var feedr = $("FCAT-" + feed_id);
 266                                 if (feedr && !feedr.className.match("Selected")) {
 267                                         feedr.className = feedr.className + "Selected";
 268                                 }
 269                         }
 270
 271                         f.innerHTML = cache_find_param(cache_prefix + feed, unread_ctr);
 272
 273                         request_counters();
 274                         remove_splash();
 275
 276                 } else {
 277
 278                         if (!page_offset) {
 279                                 var feedr;
 280
 281                                 if (is_cat) {
 282                                         feedr = $('FCAP-' + feed);
 283                                 } else {
 284                                         feedr = $('FEEDR-' + feed);
 285                                 }
 286
 287                                 if (feedr && !$('FLL-' + feed)) {
 288
 289                                         var img = $('FIMG-' + feed);
 290
 291                                         if (!is_cat && img) {
 292
 293                                                 if (!img.src.match("indicator_white")) {
 294                                                         img.alt = img.src;
 295                                                         img.src = getInitParam("sign_progress");
 296                                                 }
 297
 298                                         } else {
 299
 300                                                 if (!$('FLL-' + feed)) {
 301                                                         var ll = document.createElement('img');
 302
 303                                                         ll.src = getInitParam("sign_progress_tiny");
 304                                                         ll.className = 'hlLoading';
 305                                                         ll.id = 'FLL-' + feed;
 306
 307                                                         feedr.appendChild(ll);
 308                                                 }
 309                                         }
 310                                 }
 311                         }
 312
 313                         new Ajax.Request("backend.php", {
 314                                 parameters: query,
 315                                 onComplete: function(transport) {
 316                                         headlines_callback2(transport, page_offset);
 317                                 } });
 318                 }
 319
 320         } catch (e) {
 321                 exception_error("viewfeed", e);
 322         }
 323 }
 324
 325 function toggleCollapseCat_af(effect) {
 326         //var caption = elem.id.replace("FCATLIST-", "");
 327
 328         try {
 329
 330                 var elem = effect.element;
 331                 var cat = elem.id.replace("FCATLIST-", "");
 332                 var cap = $("FCAP-" + cat);
 333
 334                 if (Element.visible(elem)) {
 335                         cap.innerHTML = cap.innerHTML.replace("…", "");
 336                 } else {
 337                         if (cap.innerHTML.lastIndexOf("…") != cap.innerHTML.length-3) {
 338                                 cap.innerHTML = cap.innerHTML + "…";
 339                         }
 340                 }
 341
 342         } catch (e) {
 343                 exception_error("toggleCollapseCat_af", e);
 344         }
 345 }
 346
 347 function toggleCollapseCat(cat) {
 348         try {
 349
 350                 var cat_elem = $("FCAT-" + cat);
 351                 var cat_list = $("FCATLIST-" + cat).parentNode;
 352                 var caption = $("FCAP-" + cat);
 353
 354                 Effect.toggle('FCATLIST-' + cat, 'blind', { duration: 0.5,
 355                         afterFinish: toggleCollapseCat_af });
 356
 357                 new Ajax.Request("backend.php",
 358                         { parameters: "backend.php?op=feeds&subop=collapse&cid=" +
 359                                 param_escape(cat) } );
 360
 361                 local_collapse_cat(cat);
 362
 363         } catch (e) {
 364                 exception_error("toggleCollapseCat", e);
 365         }
 366 }
 367
 368 function feedlist_dragsorted(ctr) {
 369         try {
 370                 var elem = $("feedList");
 371
 372                 var cats = elem.getElementsByTagName("LI");
 373                 var ordered_cats = new Array();
 374
 375                 for (var i = 0; i < cats.length; i++) {
 376                         if (cats[i].id && cats[i].id.match("FCAT-")) {
 377                                 ordered_cats.push(cats[i].id.replace("FCAT-", ""));
 378                         }
 379                 }
 380
 381                 if (ordered_cats.length > 0) {
 382
 383                         var query = "?op=feeds&subop=catsort&corder=" +
 384                                 param_escape(ordered_cats.toString());
 385
 386                         debug(query);
 387
 388                         new Ajax.Request("backend.php", { parameters: query });
 389                 }
 390
 391         } catch (e) {
 392                 exception_error("feedlist_dragsorted", e);
 393         }
 394 }
 395
 396 function feedlist_init() {
 397         try {
 398                 loading_set_progress(90);
 399
 400                 debug("in feedlist init");
 401
 402                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 403                 document.onkeydown = hotkey_handler;
 404                 document.onmousemove = mouse_move_handler;
 405                 document.onmousedown = mouse_down_handler;
 406                 document.onmouseup = mouse_up_handler;
 407
 408                 if (!offline_mode) setTimeout("timeout()", 1);
 409
 410                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 411
 412                 if (typeof correctPNG != 'undefined') {
 413                         correctPNG();
 414                 }
 415
 416                 if (getActiveFeedId()) {
 417                         //debug("some feed is open on feedlist refresh, reloading");
 418                         //setTimeout("viewCurrentFeed()", 100);
 419                 } else {
 420                         if (getInitParam("cdm_auto_catchup") != 1 && get_feed_unread(-3) > 0) {
 421                                 notify_silent_next();
 422                                 setTimeout("viewfeed(-3)", 100);
 423                         } else {
 424                                 remove_splash();
 425                         }
 426                 }
 427
 428                 if (getInitParam("theme") == "" ||
 429                                 getInitParam("theme_options").match("hide_footer")) {
 430                         setTimeout("hide_footer()", 5000);
 431                 }
 432
 433                 init_collapsable_feedlist(getInitParam("theme"));
 434
 435                 toggle_sortable_feedlist(isFeedlistSortable());
 436
 437         } catch (e) {
 438                 exception_error("feedlist/init", e);
 439         }
 440 }
 441
 442 function hide_footer_af(effect) {
 443         try {
 444                 var c = $("content-frame");
 445
 446                 if (c) {
 447                         c.style.bottom = "0px";
 448
 449                         var ioa = $("inline_orig_article");
 450
 451                         if (ioa) {
 452                                 ioa.height = c.offsetHeight;
 453                         }
 454
 455                 } else {
 456                         var h = $("headlines-frame");
 457
 458                         if (h) {
 459                                 h.style.bottom = "0px";
 460                         }
 461                 }
 462
 463         } catch (e) {
 464                 exception_error("hide_footer_af", e);
 465         }
 466 }
 467
 468 function hide_footer() {
 469         try {
 470                 if (Element.visible("footer")) {
 471                         new Effect.Fade("footer", { afterFinish: hide_footer_af });
 472                 }
 473         } catch (e) {
 474                 exception_error("hide_footer", e);
 475         }
 476 }
 477
 478 function init_collapsable_feedlist() {
 479         try {
 480                 debug("init_collapsable_feedlist");
 481
 482                 var theme = getInitParam("theme");
 483                 var options = getInitParam("theme_options");
 484
 485                 if (theme != "" && !options.match("collapse_feedlist")) return;
 486
 487                 var fbtn = $("collapse_feeds_btn");
 488
 489                 if (fbtn) Element.show(fbtn);
 490
 491                 if (getInitParam("collapsed_feedlist") == 1) {
 492                         collapse_feedlist();
 493                 }
 494
 495         } catch (e) {
 496                 exception_error("init_hidden_feedlist", e);
 497         }
 498
 499 }
 500
 501 function mouse_move_handler(e) {
 502         try {
 503                 var client_y;
 504                 var client_x;
 505
 506                 if (window.event) {
 507                         client_y = window.event.clientY;
 508                         client_x = window.event.clientX;
 509                 } else if (e) {
 510                         client_x = e.screenX;
 511                         client_y = e.screenY;
 512                 }
 513
 514                 if (mouse_is_down) {
 515
 516                         if (mouse_y == 0) mouse_y = client_y;
 517                         if (mouse_x == 0) mouse_x = client_x;
 518
 519                         resize_headlines(mouse_x - client_x, mouse_y - client_y);
 520
 521                         mouse_y = client_y;
 522                         mouse_x = client_x;
 523
 524                         return false;
 525                 }
 526
 527         } catch (e) {
 528                 exception_error("mouse_move_handler", e);
 529         }
 530 }
 531
 532 function enable_selection(b) {
 533         selection_disabled = !b;
 534 }
 535
 536 function enable_resize(b) {
 537         resize_enabled = b;
 538 }
 539
 540 function mouse_down_handler(e) {
 541         try {
 542
 543                 /* do not prevent right click */
 544                 if (e && e.button && e.button == 2) return;
 545
 546                 if (resize_enabled) {
 547                         mouse_is_down = true;
 548                         mouse_x = 0;
 549                         mouse_y = 0;
 550                         document.onselectstart = function() { return false; };
 551                         return false;
 552                 }
 553
 554                 if (selection_disabled) {
 555                         document.onselectstart = function() { return false; };
 556                         return false;
 557                 }
 558
 559         } catch (e) {
 560                 exception_error("mouse_down_handler", e);
 561         }
 562 }
 563
 564 function mouse_up_handler(e) {
 565         try {
 566                 mouse_is_down = false;
 567
 568                 if (!selection_disabled) {
 569                         document.onselectstart = null;
 570                         var e = $("headlineActionsBody");
 571                         if (e) Element.hide(e);
 572
 573                         var e = $("offlineModeDrop");
 574                         if (e) Element.hide(e);
 575
 576                 }
 577
 578         } catch (e) {
 579                 exception_error("mouse_up_handler", e);
 580         }
 581 }
 582
 583 function request_counters_real() {
 584
 585         try {
 586
 587                 if (offline_mode) return;
 588
 589                 debug("requesting counters...");
 590
 591                 var query = "?op=rpc&subop=getAllCounters";
 592
 593                 if (tagsAreDisplayed()) {
 594                         query = query + "&omode=tl";
 595                 } else {
 596                         query = query + "&omode=flc";
 597                 }
 598
 599                 new Ajax.Request("backend.php", {
 600                         parameters: query,
 601                         onComplete: function(transport) {
 602                                 try {
 603                                         all_counters_callback2(transport, true);
 604                                 } catch (e) {
 605                                         exception_error("viewfeed/getcounters", e);
 606                                 }
 607                         } });
 608
 609         } catch (e) {
 610                 exception_error("request_counters_real", e);
 611         }
 612 }
 613
 614
 615 function request_counters() {
 616
 617         try {
 618
 619                 if (getInitParam("bw_limit") == "1") return;
 620
 621                 var date = new Date();
 622                 var timestamp = Math.round(date.getTime() / 1000);
 623
 624 //              if (getInitParam("sync_counters") == "1" ||
 625 //                              timestamp - counters_last_request > 10) {
 626
 627                 if (timestamp - counters_last_request > 15) {
 628                         debug("scheduling request of counters...");
 629                         window.setTimeout("request_counters_real()", 1000);
 630                         counters_last_request = timestamp;
 631                 } else {
 632                         debug("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 633                 }
 634
 635         } catch (e) {
 636                 exception_error("request_counters", e);
 637         }
 638 }
 639
 640