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 printFeedEntry(id, title, row_class, unread, icon) {
  34
  35         var tmp = "";
  36         var fctr_class = "";
  37         var feed_icon = "";
  38
  39         if (unread > 0) {
  40                 row_class += "Unread";
  41                 fctr_class = "feedCtrHasUnread";
  42         } else {
  43                 fctr_class = "feedCtrNoUnread";
  44         }
  45
  46         if (icon) {
  47                 feed_icon = "<img id='FIMG-"+id+"' src='" + icon + "'>";
  48         } else {
  49                 feed_icon = "<img id='FIMG-"+id+"' src='images/blank_icon.gif'>";
  50         }
  51
  52         var link = "<a title=\"FIXME\" id=\"FEEDL-"+id+"\""+
  53                 "href=\"javascript:viewfeed('"+id+"', '', false, '', false, 0);\">"+
  54                 title + "</a>";
  55
  56         tmp += "<li id='FEEDR-"+id+"' class="+row_class+">" + feed_icon +
  57                 "<span id=\"FEEDN-"+id+"\">" + link + "</span>";
  58
  59         tmp += " <span class='"+fctr_class+"' id=\"FEEDCTR-"+id+"\">" +
  60            "(<span id=\"FEEDU-"+id+"\">"+unread+"</span>)</span>";
  61
  62         tmp += "</li>";
  63
  64         return tmp;
  65 }
  66
  67 function render_feedlist(data) {
  68         try {
  69
  70                 var f = $("feeds-frame");
  71                 f.innerHTML = data;
  72 //              cache_invalidate("FEEDLIST");
  73 //              cache_inject("FEEDLIST", data, getInitParam("num_feeds"));
  74                 feedlist_init();
  75
  76         } catch (e) {
  77                 exception_error("render_feedlist", e);
  78         }
  79 }
  80
  81 function feedlist_callback2(transport) {
  82         try {
  83                 debug("feedlist_callback2");
  84                 if (!transport_error_check(transport)) return;
  85                 render_feedlist(transport.responseText);
  86         } catch (e) {
  87                 exception_error("feedlist_callback2", e);
  88         }
  89 }
  90
  91 function viewNextFeedPage() {
  92         try {
  93                 //if (!getActiveFeedId()) return;
  94
  95                 debug("viewNextFeedPage: calling viewfeed(), p: " + parseInt(_feed_cur_page+1));
  96
  97                 viewfeed(getActiveFeedId(), undefined, activeFeedIsCat(), undefined,
  98                         undefined, parseInt(_feed_cur_page+1));
  99
 100         } catch (e) {
 101                 exception_error("viewNextFeedPage", e);
 102         }
 103 }
 104
 105
 106 function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
 107         try {
 108
 109                 if (offline_mode) return viewfeed_offline(feed, subop, is_cat, subop_param,
 110                         skip_history, offset);
 111
 112 //              if (!offset) page_offset = 0;
 113
 114                 last_requested_article = 0;
 115                 //counters_last_request = 0;
 116
 117                 if (feed == getActiveFeedId()) {
 118                         cache_invalidate("F:" + feed);
 119                 }
 120
 121 /*              if (getInitParam("theme") == "" || getInitParam("theme") == "compact") {
 122                         if (getInitParam("hide_feedlist") == 1) {
 123                                 Element.hide("feeds-holder");
 124                         }
 125                 } */
 126
 127                 var force_nocache = false;
 128
 129                 var page_offset = 0;
 130
 131                 if (offset > 0) {
 132                         page_offset = offset;
 133                 } else {
 134                         page_offset = 0;
 135                         _feed_cur_page = 0;
 136                         _infscroll_disable = 0;
 137                 }
 138
 139                 if (getActiveFeedId() != feed) {
 140                         _feed_cur_page = 0;
 141                         active_post_id = 0;
 142                         _infscroll_disable = 0;
 143                 }
 144
 145                 if (page_offset != 0 && !subop) {
 146                         var date = new Date();
 147                         var timestamp = Math.round(date.getTime() / 1000);
 148
 149                         debug("<b>" + _infscroll_request_sent + " : " + timestamp + "</b>");
 150
 151                         if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 152                                 debug("infscroll request in progress, aborting");
 153                                 return;
 154                         }
 155
 156                         _infscroll_request_sent = timestamp;
 157                 }
 158
 159                 enableHotkeys();
 160                 hideAuxDlg();
 161                 closeInfoBox();
 162
 163                 Form.enable("main_toolbar_form");
 164
 165                 var toolbar_form = document.forms["main_toolbar_form"];
 166                 var toolbar_query = Form.serialize("main_toolbar_form");
 167
 168                 if (toolbar_form.query) {
 169                         if (toolbar_form.query.value != "") {
 170                                 force_nocache = true;
 171                         }
 172                         toolbar_form.query.value = "";
 173                 }
 174
 175                 var query = "backend.php?op=viewfeed&feed=" + feed + "&" +
 176                         toolbar_query + "&subop=" + param_escape(subop);
 177
 178                 if ($("search_form")) {
 179                         var search_query = Form.serialize("search_form");
 180                         query = query + "&" + search_query;
 181                         $("search_form").query.value = "";
 182                         closeInfoBox(true);
 183                         force_nocache = true;
 184                 }
 185
 186 //              debug("IS_CAT_STORED: " + activeFeedIsCat() + ", IS_CAT: " + is_cat);
 187
 188                 if (subop == "MarkAllRead") {
 189
 190                         catchup_local_feed(feed, is_cat);
 191
 192                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 193
 194                         if (show_next_feed) {
 195
 196                                 if (!activeFeedIsCat()) {
 197
 198                                         var feedlist = $('feedList');
 199
 200                                         var next_unread_feed = getRelativeFeedId(feedlist,
 201                                                         feed, "next", true);
 202
 203                                         if (!next_unread_feed) {
 204                                                 next_unread_feed = getRelativeFeedId(feedlist,
 205                                                         -3, "next", true);
 206                                         }
 207
 208                                         if (next_unread_feed) {
 209                                                 query = query + "&nuf=" + param_escape(next_unread_feed);
 210                                                 //setActiveFeedId(next_unread_feed);
 211                                                 feed = next_unread_feed;
 212                                         }
 213                                 } else {
 214
 215                                         var next_unread_feed = getNextUnreadCat(feed);
 216
 217                                         /* we don't need to specify that our next feed is actually
 218                                         a category, because we're in the is_cat mode by definition
 219                                         already */
 220
 221                                         if (next_unread_feed && show_next_feed) {
 222                                                 query = query + "&nuf=" + param_escape(next_unread_feed);
 223                                                 feed = next_unread_feed;
 224                                         }
 225
 226                                 }
 227                         }
 228                 }
 229
 230                 if (is_cat) {
 231                         query = query + "&cat=1";
 232                 }
 233
 234                 if (page_offset != 0) {
 235                         query = query + "&skip=" + page_offset;
 236
 237                         // to prevent duplicate feed titles when showing grouped vfeeds
 238                         if (vgroup_last_feed) {
 239                                 query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 240                         }
 241                 }
 242
 243                 var date = new Date();
 244                 var timestamp = Math.round(date.getTime() / 1000);
 245                 query = query + "&ts=" + timestamp
 246
 247                 disableContainerChildren("headlinesToolbar", false);
 248                 Form.enable("main_toolbar_form");
 249
 250                 // for piggybacked counters
 251
 252                 if (tagsAreDisplayed()) {
 253                         query = query + "&omode=lt";
 254                 } else {
 255                         query = query + "&omode=flc";
 256                 }
 257
 258                 if (!async_counters_work) {
 259                         query = query + "&csync=true";
 260                 }
 261
 262                 debug(query);
 263
 264                 var container = $("headlinesInnerContainer");
 265
 266 /*              if (container && page_offset == 0 && !isCdmMode()) {
 267                         new Effect.Fade(container, {duration: 1, to: 0.01,
 268                                 queue: { position:'end', scope: 'FEEDL-' + feed, limit: 1 } } );
 269                 } */
 270
 271                 var unread_ctr = -1;
 272
 273                 if (!is_cat) unread_ctr = get_feed_unread(feed);
 274
 275                 var cache_check = false;
 276
 277                 if (unread_ctr != -1 && !page_offset && !force_nocache && !subop) {
 278
 279                         var cache_prefix = "";
 280
 281                         if (is_cat) {
 282                                 cache_prefix = "C:";
 283                         } else {
 284                                 cache_prefix = "F:";
 285                         }
 286
 287                         cache_check = cache_check_param(cache_prefix + feed, unread_ctr);
 288                         debug("headline cache check: " + cache_check);
 289                 }
 290
 291                 if (cache_check) {
 292                         var f = $("headlines-frame");
 293
 294                         clean_feed_selections();
 295
 296                         setActiveFeedId(feed, is_cat);
 297
 298                         if (!is_cat) {
 299                                 var feedr = $("FEEDR-" + feed);
 300                                 if (feedr && !feedr.className.match("Selected")) {
 301                                         feedr.className = feedr.className + "Selected";
 302                                 }
 303                         } else {
 304                                 var feedr = $("FCAT-" + feed_id);
 305                                 if (feedr && !feedr.className.match("Selected")) {
 306                                         feedr.className = feedr.className + "Selected";
 307                                 }
 308                         }
 309
 310                         f.innerHTML = cache_find_param(cache_prefix + feed, unread_ctr);
 311
 312                         request_counters();
 313                         remove_splash();
 314
 315                 } else {
 316
 317                         if (!page_offset) {
 318                                 var feedr;
 319
 320                                 if (is_cat) {
 321                                         feedr = $('FCAP-' + feed);
 322                                 } else {
 323                                         feedr = $('FEEDR-' + feed);
 324                                 }
 325
 326                                 if (feedr && !$('FLL-' + feed)) {
 327
 328                                         var img = $('FIMG-' + feed);
 329
 330                                         if (!is_cat && img) {
 331
 332                                                 if (!img.src.match("indicator_white")) {
 333                                                         img.alt = img.src;
 334                                                         img.src = 'images/indicator_white.gif';
 335                                                 }
 336
 337                                         } else {
 338
 339                                                 if (!$('FLL-' + feed)) {
 340                                                         var ll = document.createElement('img');
 341
 342                                                         ll.src = 'images/indicator_tiny.gif';
 343                                                         ll.className = 'hlLoading';
 344                                                         ll.id = 'FLL-' + feed;
 345
 346                                                         feedr.appendChild(ll);
 347                                                 }
 348                                         }
 349                                 }
 350                         }
 351
 352                         new Ajax.Request(query, {
 353                                 onComplete: function(transport) {
 354                                         headlines_callback2(transport, page_offset);
 355                                 } });
 356                 }
 357
 358         } catch (e) {
 359                 exception_error("viewfeed", e);
 360         }
 361 }
 362
 363 function toggleCollapseCat_af(effect) {
 364         //var caption = elem.id.replace("FCATLIST-", "");
 365
 366         try {
 367
 368                 var elem = effect.element;
 369                 var cat = elem.id.replace("FCATLIST-", "");
 370                 var cap = $("FCAP-" + cat);
 371
 372                 if (Element.visible(elem)) {
 373                         cap.innerHTML = cap.innerHTML.replace("…", "");
 374                 } else {
 375                         if (cap.innerHTML.lastIndexOf("…") != cap.innerHTML.length-3) {
 376                                 cap.innerHTML = cap.innerHTML + "…";
 377                         }
 378                 }
 379
 380         } catch (e) {
 381                 exception_error("toggleCollapseCat_af", e);
 382         }
 383 }
 384
 385 function toggleCollapseCat(cat) {
 386         try {
 387
 388                 var cat_elem = $("FCAT-" + cat);
 389                 var cat_list = $("FCATLIST-" + cat).parentNode;
 390                 var caption = $("FCAP-" + cat);
 391
 392                 Effect.toggle('FCATLIST-' + cat, 'blind', { duration: 0.5,
 393                         afterFinish: toggleCollapseCat_af });
 394
 395                 new Ajax.Request("backend.php?op=feeds&subop=collapse&cid=" +
 396                         param_escape(cat));
 397
 398                 local_collapse_cat(cat);
 399
 400         } catch (e) {
 401                 exception_error("toggleCollapseCat", e);
 402         }
 403 }
 404
 405 function feedlist_dragsorted(ctr) {
 406         try {
 407                 var elem = $("feedList");
 408
 409                 var cats = elem.getElementsByTagName("LI");
 410                 var ordered_cats = new Array();
 411
 412                 for (var i = 0; i < cats.length; i++) {
 413                         if (cats[i].id && cats[i].id.match("FCAT-")) {
 414                                 ordered_cats.push(cats[i].id.replace("FCAT-", ""));
 415                         }
 416                 }
 417
 418                 if (ordered_cats.length > 0) {
 419
 420                         var query = "backend.php?op=feeds&subop=catsort&corder=" +
 421                                 param_escape(ordered_cats.toString());
 422
 423                         debug(query);
 424
 425                         new Ajax.Request(query);
 426                 }
 427
 428         } catch (e) {
 429                 exception_error("feedlist_dragsorted", e);
 430         }
 431 }
 432
 433 function feedlist_init() {
 434         try {
 435 //              if (arguments.callee.done) return;
 436 //              arguments.callee.done = true;
 437
 438                 loading_set_progress(90);
 439
 440                 debug("in feedlist init");
 441
 442                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 443                 document.onkeydown = hotkey_handler;
 444                 document.onmousemove = mouse_move_handler;
 445                 document.onmousedown = mouse_down_handler;
 446                 document.onmouseup = mouse_up_handler;
 447
 448                 if (!offline_mode) setTimeout("timeout()", 1);
 449
 450                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 451
 452                 if (typeof correctPNG != 'undefined') {
 453                         correctPNG();
 454                 }
 455
 456                 if (getActiveFeedId()) {
 457                         //debug("some feed is open on feedlist refresh, reloading");
 458                         //setTimeout("viewCurrentFeed()", 100);
 459                 } else {
 460                         if (getInitParam("cdm_auto_catchup") != 1 && get_feed_unread(-3) > 0) {
 461                                 notify_silent_next();
 462                                 setTimeout("viewfeed(-3)", 100);
 463                         } else {
 464                                 remove_splash();
 465                         }
 466                 }
 467
 468                 if (getInitParam("theme") == "") {
 469                         setTimeout("hide_footer()", 5000);
 470                 }
 471
 472                 init_collapsable_feedlist(getInitParam("theme"));
 473
 474                 toggle_sortable_feedlist(isFeedlistSortable());
 475
 476         } catch (e) {
 477                 exception_error("feedlist/init", e);
 478         }
 479 }
 480
 481 function hide_footer_af(effect) {
 482         try {
 483                 var c = $("content-frame");
 484
 485                 if (c) {
 486                         c.style.bottom = "0px";
 487
 488                         var ioa = $("inline_orig_article");
 489
 490                         if (ioa) {
 491                                 ioa.height = c.offsetHeight;
 492                         }
 493
 494                 } else {
 495                         var h = $("headlines-frame");
 496
 497                         if (h) {
 498                                 h.style.bottom = "0px";
 499                         }
 500                 }
 501
 502         } catch (e) {
 503                 exception_error("hide_footer_af", e);
 504         }
 505 }
 506
 507 function hide_footer() {
 508         try {
 509                 if (Element.visible("footer")) {
 510                         new Effect.Fade("footer", { afterFinish: hide_footer_af });
 511                 }
 512         } catch (e) {
 513                 exception_error("hide_footer", e);
 514         }
 515 }
 516
 517 /*
 518 function init_hidden_feedlist(theme) {
 519         try {
 520                 debug("init_hidden_feedlist");
 521
 522                 if (theme != "" && theme != "compact") return;
 523
 524                 var fl = $("feeds-holder");
 525                 var fh = $("headlines-frame");
 526                 var fc = $("content-frame");
 527                 var ft = $("toolbar");
 528                 var ff = $("footer");
 529                 var fhdr = $("header");
 530
 531                 var fbtn = $("toggle_feeds_btn");
 532
 533                 if (fbtn) Element.show(fbtn);
 534
 535                 fl.style.top = fh.offsetTop + "px";
 536                 fl.style.backgroundColor = "white"; //FIXME
 537
 538                 Element.hide(fl);
 539
 540                 fh.style.left = "0px";
 541                 ft.style.left = "0px";
 542                 if (fc) fc.style.left = "0px";
 543                 if (ff) ff.style.left = "0px";
 544
 545                 if (theme == "compact") {
 546                         fhdr.style.left = "10px";
 547                         fl.style.top = (fh.offsetTop + 1) + "px";
 548                 }
 549
 550         } catch (e) {
 551                 exception_error("init_hidden_feedlist", e);
 552         }
 553 } */
 554
 555 function init_collapsable_feedlist(theme) {
 556         try {
 557                 debug("init_collapsable_feedlist");
 558
 559                 if (theme != "" && theme != "compact" && theme != "graycube" &&
 560                                 theme != "compat") return;
 561
 562                 var fbtn = $("collapse_feeds_btn");
 563
 564                 if (fbtn) Element.show(fbtn);
 565
 566                 if (getInitParam("collapsed_feedlist") == 1) {
 567                         collapse_feedlist();
 568                 }
 569
 570         } catch (e) {
 571                 exception_error("init_hidden_feedlist", e);
 572         }
 573
 574 }
 575
 576 function mouse_move_handler(e) {
 577         try {
 578                 var client_y;
 579                 var client_x;
 580
 581                 if (window.event) {
 582                         client_y = window.event.clientY;
 583                         client_x = window.event.clientX;
 584                 } else if (e) {
 585                         client_x = e.screenX;
 586                         client_y = e.screenY;
 587                 }
 588
 589                 if (mouse_is_down) {
 590
 591                         if (mouse_y == 0) mouse_y = client_y;
 592                         if (mouse_x == 0) mouse_x = client_x;
 593
 594                         resize_headlines(mouse_x - client_x, mouse_y - client_y);
 595
 596                         mouse_y = client_y;
 597                         mouse_x = client_x;
 598
 599                         return false;
 600                 }
 601
 602         } catch (e) {
 603                 exception_error("mouse_move_handler", e);
 604         }
 605 }
 606
 607 function enable_selection(b) {
 608         selection_disabled = !b;
 609 }
 610
 611 function enable_resize(b) {
 612         resize_enabled = b;
 613 }
 614
 615 function mouse_down_handler(e) {
 616         try {
 617
 618                 /* do not prevent right click */
 619                 if (e && e.button && e.button == 2) return;
 620
 621                 if (resize_enabled) {
 622                         mouse_is_down = true;
 623                         mouse_x = 0;
 624                         mouse_y = 0;
 625                         document.onselectstart = function() { return false; };
 626                         return false;
 627                 }
 628
 629                 if (selection_disabled) {
 630                         document.onselectstart = function() { return false; };
 631                         return false;
 632                 }
 633
 634         } catch (e) {
 635                 exception_error("mouse_down_handler", e);
 636         }
 637 }
 638
 639 function mouse_up_handler(e) {
 640         try {
 641                 mouse_is_down = false;
 642
 643                 if (!selection_disabled) {
 644                         document.onselectstart = null;
 645                         var e = $("headlineActionsBody");
 646                         if (e) Element.hide(e);
 647
 648                         var e = $("offlineModeDrop");
 649                         if (e) Element.hide(e);
 650
 651                 }
 652
 653         } catch (e) {
 654                 exception_error("mouse_up_handler", e);
 655         }
 656 }
 657
 658 function request_counters_real() {
 659
 660         try {
 661
 662                 if (offline_mode) return;
 663
 664                 debug("requesting counters...");
 665
 666                 var query = "backend.php?op=rpc&subop=getAllCounters";
 667
 668                 if (tagsAreDisplayed()) {
 669                         query = query + "&omode=tl";
 670                 } else {
 671                         query = query + "&omode=flc";
 672                 }
 673
 674                 new Ajax.Request(query, {
 675                         onComplete: function(transport) {
 676                                 try {
 677                                         all_counters_callback2(transport, true);
 678                                 } catch (e) {
 679                                         exception_error("viewfeed/getcounters", e);
 680                                 }
 681                         } });
 682
 683         } catch (e) {
 684                 exception_error("request_counters_real", e);
 685         }
 686 }
 687
 688
 689 function request_counters() {
 690
 691         try {
 692
 693                 if (getInitParam("bw_limit") == "1") return;
 694
 695                 var date = new Date();
 696                 var timestamp = Math.round(date.getTime() / 1000);
 697
 698 //              if (getInitParam("sync_counters") == "1" ||
 699 //                              timestamp - counters_last_request > 10) {
 700
 701                 if (timestamp - counters_last_request > 15) {
 702                         debug("scheduling request of counters...");
 703                         window.setTimeout("request_counters_real()", 1000);
 704                         counters_last_request = timestamp;
 705                 } else {
 706                         debug("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 707                 }
 708
 709         } catch (e) {
 710                 exception_error("request_counters", e);
 711         }
 712 }
 713
 714