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 = "?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                 Form.enable("main_toolbar_form");
 244
 245                 // for piggybacked counters
 246
 247                 if (tagsAreDisplayed()) {
 248                         query = query + "&omode=lt";
 249                 } else {
 250                         query = query + "&omode=flc";
 251                 }
 252
 253                 if (!async_counters_work) {
 254                         query = query + "&csync=true";
 255                 }
 256
 257                 debug(query);
 258
 259                 var container = $("headlinesInnerContainer");
 260
 261 /*              if (container && page_offset == 0 && !isCdmMode()) {
 262                         new Effect.Fade(container, {duration: 1, to: 0.01,
 263                                 queue: { position:'end', scope: 'FEEDL-' + feed, limit: 1 } } );
 264                 } */
 265
 266                 var unread_ctr = -1;
 267
 268                 if (!is_cat) unread_ctr = get_feed_unread(feed);
 269
 270                 var cache_check = false;
 271
 272                 if (unread_ctr != -1 && !page_offset && !force_nocache && !subop) {
 273
 274                         var cache_prefix = "";
 275
 276                         if (is_cat) {
 277                                 cache_prefix = "C:";
 278                         } else {
 279                                 cache_prefix = "F:";
 280                         }
 281
 282                         cache_check = cache_check_param(cache_prefix + feed, unread_ctr);
 283                         debug("headline cache check: " + cache_check);
 284                 }
 285
 286                 if (cache_check) {
 287                         var f = $("headlines-frame");
 288
 289                         clean_feed_selections();
 290
 291                         setActiveFeedId(feed, is_cat);
 292
 293                         if (!is_cat) {
 294                                 var feedr = $("FEEDR-" + feed);
 295                                 if (feedr && !feedr.className.match("Selected")) {
 296                                         feedr.className = feedr.className + "Selected";
 297                                 }
 298                         } else {
 299                                 var feedr = $("FCAT-" + feed_id);
 300                                 if (feedr && !feedr.className.match("Selected")) {
 301                                         feedr.className = feedr.className + "Selected";
 302                                 }
 303                         }
 304
 305                         f.innerHTML = cache_find_param(cache_prefix + feed, unread_ctr);
 306
 307                         request_counters();
 308                         remove_splash();
 309
 310                 } else {
 311
 312                         if (!page_offset) {
 313                                 var feedr;
 314
 315                                 if (is_cat) {
 316                                         feedr = $('FCAP-' + feed);
 317                                 } else {
 318                                         feedr = $('FEEDR-' + feed);
 319                                 }
 320
 321                                 if (feedr && !$('FLL-' + feed)) {
 322
 323                                         var img = $('FIMG-' + feed);
 324
 325                                         if (!is_cat && img) {
 326
 327                                                 if (!img.src.match("indicator_white")) {
 328                                                         img.alt = img.src;
 329                                                         img.src = getInitParam("sign_progress");
 330                                                 }
 331
 332                                         } else {
 333
 334                                                 if (!$('FLL-' + feed)) {
 335                                                         var ll = document.createElement('img');
 336
 337                                                         ll.src = getInitParam("sign_progress_tiny");
 338                                                         ll.className = 'hlLoading';
 339                                                         ll.id = 'FLL-' + feed;
 340
 341                                                         feedr.appendChild(ll);
 342                                                 }
 343                                         }
 344                                 }
 345                         }
 346
 347                         new Ajax.Request("backend.php", {
 348                                 parameters: query,
 349                                 onComplete: function(transport) {
 350                                         headlines_callback2(transport, page_offset);
 351                                 } });
 352                 }
 353
 354         } catch (e) {
 355                 exception_error("viewfeed", e);
 356         }
 357 }
 358
 359 function toggleCollapseCat_af(effect) {
 360         //var caption = elem.id.replace("FCATLIST-", "");
 361
 362         try {
 363
 364                 var elem = effect.element;
 365                 var cat = elem.id.replace("FCATLIST-", "");
 366                 var cap = $("FCAP-" + cat);
 367
 368                 if (Element.visible(elem)) {
 369                         cap.innerHTML = cap.innerHTML.replace("…", "");
 370                 } else {
 371                         if (cap.innerHTML.lastIndexOf("…") != cap.innerHTML.length-3) {
 372                                 cap.innerHTML = cap.innerHTML + "…";
 373                         }
 374                 }
 375
 376         } catch (e) {
 377                 exception_error("toggleCollapseCat_af", e);
 378         }
 379 }
 380
 381 function toggleCollapseCat(cat) {
 382         try {
 383
 384                 var cat_elem = $("FCAT-" + cat);
 385                 var cat_list = $("FCATLIST-" + cat).parentNode;
 386                 var caption = $("FCAP-" + cat);
 387
 388                 Effect.toggle('FCATLIST-' + cat, 'blind', { duration: 0.5,
 389                         afterFinish: toggleCollapseCat_af });
 390
 391                 new Ajax.Request("backend.php",
 392                         { parameters: "backend.php?op=feeds&subop=collapse&cid=" +
 393                                 param_escape(cat) } );
 394
 395                 local_collapse_cat(cat);
 396
 397         } catch (e) {
 398                 exception_error("toggleCollapseCat", e);
 399         }
 400 }
 401
 402 function feedlist_dragsorted(ctr) {
 403         try {
 404                 var elem = $("feedList");
 405
 406                 var cats = elem.getElementsByTagName("LI");
 407                 var ordered_cats = new Array();
 408
 409                 for (var i = 0; i < cats.length; i++) {
 410                         if (cats[i].id && cats[i].id.match("FCAT-")) {
 411                                 ordered_cats.push(cats[i].id.replace("FCAT-", ""));
 412                         }
 413                 }
 414
 415                 if (ordered_cats.length > 0) {
 416
 417                         var query = "?op=feeds&subop=catsort&corder=" +
 418                                 param_escape(ordered_cats.toString());
 419
 420                         debug(query);
 421
 422                         new Ajax.Request("backend.php", { parameters: query });
 423                 }
 424
 425         } catch (e) {
 426                 exception_error("feedlist_dragsorted", e);
 427         }
 428 }
 429
 430 function feedlist_init() {
 431         try {
 432 //              if (arguments.callee.done) return;
 433 //              arguments.callee.done = true;
 434
 435                 loading_set_progress(90);
 436
 437                 debug("in feedlist init");
 438
 439                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 440                 document.onkeydown = hotkey_handler;
 441                 document.onmousemove = mouse_move_handler;
 442                 document.onmousedown = mouse_down_handler;
 443                 document.onmouseup = mouse_up_handler;
 444
 445                 if (!offline_mode) setTimeout("timeout()", 1);
 446
 447                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 448
 449                 if (typeof correctPNG != 'undefined') {
 450                         correctPNG();
 451                 }
 452
 453                 if (getActiveFeedId()) {
 454                         //debug("some feed is open on feedlist refresh, reloading");
 455                         //setTimeout("viewCurrentFeed()", 100);
 456                 } else {
 457                         if (getInitParam("cdm_auto_catchup") != 1 && get_feed_unread(-3) > 0) {
 458                                 notify_silent_next();
 459                                 setTimeout("viewfeed(-3)", 100);
 460                         } else {
 461                                 remove_splash();
 462                         }
 463                 }
 464
 465                 if (getInitParam("theme") == "" ||
 466                                 getInitParam("theme_options").match("hide_footer")) {
 467                         setTimeout("hide_footer()", 5000);
 468                 }
 469
 470                 init_collapsable_feedlist(getInitParam("theme"));
 471
 472                 toggle_sortable_feedlist(isFeedlistSortable());
 473
 474         } catch (e) {
 475                 exception_error("feedlist/init", e);
 476         }
 477 }
 478
 479 function hide_footer_af(effect) {
 480         try {
 481                 var c = $("content-frame");
 482
 483                 if (c) {
 484                         c.style.bottom = "0px";
 485
 486                         var ioa = $("inline_orig_article");
 487
 488                         if (ioa) {
 489                                 ioa.height = c.offsetHeight;
 490                         }
 491
 492                 } else {
 493                         var h = $("headlines-frame");
 494
 495                         if (h) {
 496                                 h.style.bottom = "0px";
 497                         }
 498                 }
 499
 500         } catch (e) {
 501                 exception_error("hide_footer_af", e);
 502         }
 503 }
 504
 505 function hide_footer() {
 506         try {
 507                 if (Element.visible("footer")) {
 508                         new Effect.Fade("footer", { afterFinish: hide_footer_af });
 509                 }
 510         } catch (e) {
 511                 exception_error("hide_footer", e);
 512         }
 513 }
 514
 515 function init_collapsable_feedlist() {
 516         try {
 517                 debug("init_collapsable_feedlist");
 518
 519                 var theme = getInitParam("theme");
 520                 var options = getInitParam("theme_options");
 521
 522                 if (theme != "" && !options.match("collapse_feedlist")) return;
 523
 524                 var fbtn = $("collapse_feeds_btn");
 525
 526                 if (fbtn) Element.show(fbtn);
 527
 528                 if (getInitParam("collapsed_feedlist") == 1) {
 529                         collapse_feedlist();
 530                 }
 531
 532         } catch (e) {
 533                 exception_error("init_hidden_feedlist", e);
 534         }
 535
 536 }
 537
 538 function mouse_move_handler(e) {
 539         try {
 540                 var client_y;
 541                 var client_x;
 542
 543                 if (window.event) {
 544                         client_y = window.event.clientY;
 545                         client_x = window.event.clientX;
 546                 } else if (e) {
 547                         client_x = e.screenX;
 548                         client_y = e.screenY;
 549                 }
 550
 551                 if (mouse_is_down) {
 552
 553                         if (mouse_y == 0) mouse_y = client_y;
 554                         if (mouse_x == 0) mouse_x = client_x;
 555
 556                         resize_headlines(mouse_x - client_x, mouse_y - client_y);
 557
 558                         mouse_y = client_y;
 559                         mouse_x = client_x;
 560
 561                         return false;
 562                 }
 563
 564         } catch (e) {
 565                 exception_error("mouse_move_handler", e);
 566         }
 567 }
 568
 569 function enable_selection(b) {
 570         selection_disabled = !b;
 571 }
 572
 573 function enable_resize(b) {
 574         resize_enabled = b;
 575 }
 576
 577 function mouse_down_handler(e) {
 578         try {
 579
 580                 /* do not prevent right click */
 581                 if (e && e.button && e.button == 2) return;
 582
 583                 if (resize_enabled) {
 584                         mouse_is_down = true;
 585                         mouse_x = 0;
 586                         mouse_y = 0;
 587                         document.onselectstart = function() { return false; };
 588                         return false;
 589                 }
 590
 591                 if (selection_disabled) {
 592                         document.onselectstart = function() { return false; };
 593                         return false;
 594                 }
 595
 596         } catch (e) {
 597                 exception_error("mouse_down_handler", e);
 598         }
 599 }
 600
 601 function mouse_up_handler(e) {
 602         try {
 603                 mouse_is_down = false;
 604
 605                 if (!selection_disabled) {
 606                         document.onselectstart = null;
 607                         var e = $("headlineActionsBody");
 608                         if (e) Element.hide(e);
 609
 610                         var e = $("offlineModeDrop");
 611                         if (e) Element.hide(e);
 612
 613                 }
 614
 615         } catch (e) {
 616                 exception_error("mouse_up_handler", e);
 617         }
 618 }
 619
 620 function request_counters_real() {
 621
 622         try {
 623
 624                 if (offline_mode) return;
 625
 626                 debug("requesting counters...");
 627
 628                 var query = "?op=rpc&subop=getAllCounters";
 629
 630                 if (tagsAreDisplayed()) {
 631                         query = query + "&omode=tl";
 632                 } else {
 633                         query = query + "&omode=flc";
 634                 }
 635
 636                 new Ajax.Request("backend.php", {
 637                         parameters: query,
 638                         onComplete: function(transport) {
 639                                 try {
 640                                         all_counters_callback2(transport, true);
 641                                 } catch (e) {
 642                                         exception_error("viewfeed/getcounters", e);
 643                                 }
 644                         } });
 645
 646         } catch (e) {
 647                 exception_error("request_counters_real", e);
 648         }
 649 }
 650
 651
 652 function request_counters() {
 653
 654         try {
 655
 656                 if (getInitParam("bw_limit") == "1") return;
 657
 658                 var date = new Date();
 659                 var timestamp = Math.round(date.getTime() / 1000);
 660
 661 //              if (getInitParam("sync_counters") == "1" ||
 662 //                              timestamp - counters_last_request > 10) {
 663
 664                 if (timestamp - counters_last_request > 15) {
 665                         debug("scheduling request of counters...");
 666                         window.setTimeout("request_counters_real()", 1000);
 667                         counters_last_request = timestamp;
 668                 } else {
 669                         debug("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 670                 }
 671
 672         } catch (e) {
 673                 exception_error("request_counters", e);
 674         }
 675 }
 676
 677