js/viewfeed.js

   1 /* global dijit, __ */
   2
   3 let _active_article_id = 0;
   4
   5 let vgroup_last_feed = false;
   6 let post_under_pointer = false;
   7
   8 let last_requested_article = 0;
   9
  10 let catchup_id_batch = [];
  11 let catchup_timeout_id = false;
  12
  13 let cids_requested = [];
  14 let loaded_article_ids = [];
  15 let _last_headlines_update = 0;
  16 let _headlines_scroll_offset = 0;
  17 let current_first_id = 0;
  18 let last_search_query;
  19
  20 let _catchup_request_sent = false;
  21
  22 let has_storage = 'sessionStorage' in window && window['sessionStorage'] !== null;
  23
  24 function headlines_callback2(transport, offset, background, infscroll_req) {
  25         const reply = handle_rpc_json(transport);
  26
  27         console.log("headlines_callback2 [offset=" + offset + "] B:" + background + " I:" + infscroll_req);
  28
  29         if (background)
  30                 return;
  31
  32         var is_cat = false;
  33         var feed_id = false;
  34
  35         if (reply) {
  36
  37                 is_cat = reply['headlines']['is_cat'];
  38                 feed_id = reply['headlines']['id'];
  39                 last_search_query = reply['headlines']['search_query'];
  40
  41                 if (feed_id != -7 && (feed_id != getActiveFeedId() || is_cat != activeFeedIsCat()))
  42                         return;
  43
  44                 try {
  45                         if (infscroll_req == false) {
  46                                 $("headlines-frame").scrollTop = 0;
  47
  48                                 $("floatingTitle").style.visibility = "hidden";
  49                                 $("floatingTitle").setAttribute("data-article-id", 0);
  50                                 $("floatingTitle").innerHTML = "";
  51                         }
  52                 } catch (e) { }
  53
  54                 $("headlines-frame").removeClassName("cdm");
  55                 $("headlines-frame").removeClassName("normal");
  56
  57                 $("headlines-frame").addClassName(isCdmMode() ? "cdm" : "normal");
  58
  59                 const headlines_count = reply['headlines-info']['count'];
  60
  61                 vgroup_last_feed = reply['headlines-info']['vgroup_last_feed'];
  62
  63                 if (parseInt(headlines_count) < 30) {
  64                         _infscroll_disable = 1;
  65                 } else {
  66                         _infscroll_disable = 0;
  67                 }
  68
  69                 current_first_id = reply['headlines']['first_id'];
  70                 const counters = reply['counters'];
  71                 const articles = reply['articles'];
  72
  73                 if (infscroll_req == false) {
  74                         loaded_article_ids = [];
  75
  76                         dojo.html.set($("headlines-toolbar"),
  77                                         reply['headlines']['toolbar'],
  78                                         {parseContent: true});
  79
  80                         $("headlines-frame").innerHTML = '';
  81
  82                         let tmp = document.createElement("div");
  83                         tmp.innerHTML = reply['headlines']['content'];
  84                         dojo.parser.parse(tmp);
  85
  86                         while (tmp.hasChildNodes()) {
  87                                 var row = tmp.removeChild(tmp.firstChild);
  88
  89                                 if (loaded_article_ids.indexOf(row.id) == -1 || row.hasClassName("cdmFeedTitle")) {
  90                                         dijit.byId("headlines-frame").domNode.appendChild(row);
  91
  92                                         loaded_article_ids.push(row.id);
  93                                 }
  94                         }
  95
  96                         let hsp = $("headlines-spacer");
  97                         if (!hsp) hsp = new Element("DIV", {"id": "headlines-spacer"});
  98                         dijit.byId('headlines-frame').domNode.appendChild(hsp);
  99
 100                         initHeadlinesMenu();
 101
 102                         if (_infscroll_disable)
 103                                 hsp.innerHTML = "<a href='#' onclick='openNextUnreadFeed()'>" +
 104                                         __("Click to open next unread feed.") + "</a>";
 105
 106                         if (_search_query) {
 107                                 $("feed_title").innerHTML += "<span id='cancel_search'>" +
 108                                         " (<a href='#' onclick='cancelSearch()'>" + __("Cancel search") + "</a>)" +
 109                                         "</span>";
 110                         }
 111
 112                 } else if (headlines_count > 0 && feed_id == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 113                                 console.log("adding some more headlines: " + headlines_count);
 114
 115                                 const c = dijit.byId("headlines-frame");
 116                                 const ids = getSelectedArticleIds2();
 117
 118                                 let hsp = $("headlines-spacer");
 119
 120                                 if (hsp)
 121                                         c.domNode.removeChild(hsp);
 122
 123                                 let tmp = document.createElement("div");
 124                                 tmp.innerHTML = reply['headlines']['content'];
 125                                 dojo.parser.parse(tmp);
 126
 127                                 while (tmp.hasChildNodes()) {
 128                                         let row = tmp.removeChild(tmp.firstChild);
 129
 130                                         if (loaded_article_ids.indexOf(row.id) == -1 || row.hasClassName("cdmFeedTitle")) {
 131                                                 dijit.byId("headlines-frame").domNode.appendChild(row);
 132
 133                                                 loaded_article_ids.push(row.id);
 134                                         }
 135                                 }
 136
 137                                 if (!hsp) hsp = new Element("DIV", {"id": "headlines-spacer"});
 138                                 c.domNode.appendChild(hsp);
 139
 140                                 if (headlines_count < 30) _infscroll_disable = true;
 141
 142                                 console.log("restore selected ids: " + ids);
 143
 144                                 for (let i = 0; i < ids.length; i++) {
 145                                         markHeadline(ids[i]);
 146                                 }
 147
 148                                 initHeadlinesMenu();
 149
 150                                 if (_infscroll_disable) {
 151                                         hsp.innerHTML = "<a href='#' onclick='openNextUnreadFeed()'>" +
 152                                         __("Click to open next unread feed.") + "</a>";
 153                                 }
 154
 155                         } else {
 156                                 console.log("no new headlines received");
 157
 158                                 const first_id_changed = reply['headlines']['first_id_changed'];
 159                                 console.log("first id changed:" + first_id_changed);
 160
 161                                 let hsp = $("headlines-spacer");
 162
 163                                 if (hsp) {
 164                                         if (first_id_changed) {
 165                                                 hsp.innerHTML = "<a href='#' onclick='viewCurrentFeed()'>" +
 166                                                 __("New articles found, reload feed to continue.") + "</a>";
 167                                         } else {
 168                                                 hsp.innerHTML = "<a href='#' onclick='openNextUnreadFeed()'>" +
 169                                                 __("Click to open next unread feed.") + "</a>";
 170                                         }
 171
 172                                 }
 173
 174                         }
 175
 176                 if (articles) {
 177                         for (let i = 0; i < articles.length; i++) {
 178                                 const a_id = articles[i]['id'];
 179                                 cache_set("article:" + a_id, articles[i]['content']);
 180                         }
 181                 } else {
 182                         console.log("no cached articles received");
 183                 }
 184
 185                 if (counters)
 186                         parse_counters(counters);
 187                 else
 188                         request_counters();
 189
 190         } else {
 191                 console.error("Invalid object received: " + transport.responseText);
 192                 dijit.byId("headlines-frame").attr('content', "<div class='whiteBox'>" +
 193                                 __('Could not update headlines (invalid object received - see error console for details)') +
 194                                 "</div>");
 195         }
 196
 197         _infscroll_request_sent = 0;
 198         _last_headlines_update = new Date().getTime();
 199
 200         unpackVisibleHeadlines();
 201
 202         // if we have some more space in the buffer, why not try to fill it
 203
 204         if (!_infscroll_disable && $("headlines-spacer") &&
 205                         $("headlines-spacer").offsetTop < $("headlines-frame").offsetHeight) {
 206
 207                 window.setTimeout(function() {
 208                         loadMoreHeadlines();
 209                 }, 250);
 210         }
 211
 212         notify("");
 213 }
 214
 215 function render_article(article) {
 216         cleanup_memory("content-insert");
 217
 218         dijit.byId("headlines-wrap-inner").addChild(
 219                         dijit.byId("content-insert"));
 220
 221         const c = dijit.byId("content-insert");
 222
 223         try {
 224                 c.domNode.scrollTop = 0;
 225         } catch (e) { }
 226
 227         c.attr('content', article);
 228         PluginHost.run(PluginHost.HOOK_ARTICLE_RENDERED, c.domNode);
 229
 230         correctHeadlinesOffset(getActiveArticleId());
 231
 232         try {
 233                 c.focus();
 234         } catch (e) { }
 235 }
 236
 237 function showArticleInHeadlines(id, noexpand) {
 238         const row = $("RROW-" + id);
 239         if (!row) return;
 240
 241         if (!noexpand)
 242                 row.removeClassName("Unread");
 243
 244         row.addClassName("active");
 245
 246         selectArticles('none');
 247
 248         markHeadline(id);
 249 }
 250
 251 function article_callback2(transport, id) {
 252         console.log("article_callback2 " + id);
 253
 254         const reply = handle_rpc_json(transport);
 255
 256         if (reply) {
 257
 258                 reply.each(function(article) {
 259                         if (getActiveArticleId() == article['id']) {
 260                                 render_article(article['content']);
 261                         }
 262                         cids_requested.remove(article['id']);
 263
 264                         cache_set("article:" + article['id'], article['content']);
 265                 });
 266
 267         } else {
 268                 console.error("Invalid object received: " + transport.responseText);
 269
 270                 render_article("<div class='whiteBox'>" +
 271                                 __('Could not display article (invalid object received - see error console for details)') + "</div>");
 272         }
 273
 274         const unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
 275         request_counters(unread_in_buffer == 0);
 276
 277         notify("");
 278 }
 279
 280 function view(id, activefeed, noexpand) {
 281         const oldrow = $("RROW-" + getActiveArticleId());
 282         if (oldrow) oldrow.removeClassName("active");
 283
 284         const crow = $("RROW-" + id);
 285
 286         if (!crow) return;
 287         if (noexpand) {
 288                 setActiveArticleId(id);
 289                 showArticleInHeadlines(id, noexpand);
 290                 return;
 291         }
 292
 293         console.log("loading article: " + id);
 294
 295         const cached_article = cache_get("article:" + id);
 296
 297         console.log("cache check result: " + (cached_article != false));
 298
 299         const query = {op: "article", method: "view", id: id};
 300
 301         const neighbor_ids = getRelativePostIds(id);
 302
 303         /* only request uncached articles */
 304
 305         const cids_to_request = [];
 306
 307         for (let i = 0; i < neighbor_ids.length; i++) {
 308                 if (cids_requested.indexOf(neighbor_ids[i]) == -1)
 309                         if (!cache_get("article:" + neighbor_ids[i])) {
 310                                 cids_to_request.push(neighbor_ids[i]);
 311                                 cids_requested.push(neighbor_ids[i]);
 312                         }
 313         }
 314
 315         console.log("additional ids: " + cids_to_request.toString());
 316
 317         query.cids = cids_to_request.toString();
 318
 319         const article_is_unread = crow.hasClassName("Unread");
 320
 321         setActiveArticleId(id);
 322         showArticleInHeadlines(id);
 323
 324         if (cached_article && article_is_unread) {
 325                 query.mode = "prefetch";
 326                 render_article(cached_article);
 327         } else if (cached_article) {
 328         query.mode = "prefetch_old";
 329                 render_article(cached_article);
 330
 331                 // if we don't need to request any relative ids, we might as well skip
 332                 // the server roundtrip altogether
 333                 if (cids_to_request.length == 0) {
 334                         return;
 335                 }
 336         }
 337
 338         last_requested_article = id;
 339
 340         console.log(query);
 341
 342         if (article_is_unread) {
 343                 decrementFeedCounter(getActiveFeedId(), activeFeedIsCat());
 344         }
 345
 346         xhrPost("backend.php", query, (transport) => {
 347         article_callback2(transport, id);
 348         })
 349
 350         return false;
 351
 352 }
 353
 354 function toggleMark(id, client_only) {
 355         const query = { op: "rpc", id: id, method: "mark" };
 356
 357         const row = $("RROW-" + id);
 358         if (!row) return;
 359
 360         const imgs = [];
 361
 362         const row_imgs = row.getElementsByClassName("markedPic");
 363
 364         for (let i = 0; i < row_imgs.length; i++)
 365                 imgs.push(row_imgs[i]);
 366
 367         const ft = $("floatingTitle");
 368
 369         if (ft && ft.getAttribute("data-article-id") == id) {
 370                 const fte = ft.getElementsByClassName("markedPic");
 371
 372                 for (var i = 0; i < fte.length; i++)
 373                         imgs.push(fte[i]);
 374         }
 375
 376         for (i = 0; i < imgs.length; i++) {
 377                 const img = imgs[i];
 378
 379                 if (!row.hasClassName("marked")) {
 380                         img.src = img.src.replace("mark_unset", "mark_set");
 381                         query.mark = 1;
 382                 } else {
 383                         img.src = img.src.replace("mark_set", "mark_unset");
 384                         query.mark = 0;
 385                 }
 386         }
 387
 388         row.toggleClassName("marked");
 389
 390         if (!client_only)
 391                 xhrPost("backend.php", query, (transport) => {
 392                         handle_rpc_json(transport);
 393                 });
 394         }
 395
 396 function togglePub(id, client_only, no_effects, note) {
 397     const query = { op: "rpc", id: id, method: "publ" };
 398
 399         if (note != undefined) {
 400                 query.note = note;
 401         } else {
 402                 query.note = "undefined";
 403         }
 404
 405         const row = $("RROW-" + id);
 406         if (!row) return;
 407
 408         const imgs = [];
 409
 410         const row_imgs = row.getElementsByClassName("pubPic");
 411
 412         for (let i = 0; i < row_imgs.length; i++)
 413                 imgs.push(row_imgs[i]);
 414
 415         const ft = $("floatingTitle");
 416
 417         if (ft && ft.getAttribute("data-article-id") == id) {
 418                 const fte = ft.getElementsByClassName("pubPic");
 419
 420                 for (let i = 0; i < fte.length; i++)
 421                         imgs.push(fte[i]);
 422         }
 423
 424         for (let i = 0; i < imgs.length; i++) {
 425                 const img = imgs[i];
 426
 427                 if (!row.hasClassName("published") || note != undefined) {
 428                         img.src = img.src.replace("pub_unset", "pub_set");
 429                         query.pub = 1;
 430                 } else {
 431                         img.src = img.src.replace("pub_set", "pub_unset");
 432                         query.pub = 0;
 433                 }
 434         }
 435
 436         if (note != undefined)
 437                 row.addClassName("published");
 438         else
 439                 row.toggleClassName("published");
 440
 441         if (!client_only)
 442                 xhrPost("backend.php", query, (transport) => {
 443                                 handle_rpc_json(transport);
 444                 });
 445 }
 446
 447 function moveToPost(mode, noscroll, noexpand) {
 448         const rows = getLoadedArticleIds();
 449
 450         let prev_id = false;
 451         let next_id = false;
 452
 453         if (!$('RROW-' + getActiveArticleId())) {
 454                 setActiveArticleId(0);
 455         }
 456
 457         if (!getActiveArticleId()) {
 458                 next_id = rows[0];
 459                 prev_id = rows[rows.length-1]
 460         } else {
 461                 for (let i = 0; i < rows.length; i++) {
 462                         if (rows[i] == getActiveArticleId()) {
 463
 464                                 // Account for adjacent identical article ids.
 465                                 if (i > 0) prev_id = rows[i-1];
 466
 467                                 for (let j = i+1; j < rows.length; j++) {
 468                                         if (rows[j] != getActiveArticleId()) {
 469                                                 next_id = rows[j];
 470                                                 break;
 471                                         }
 472                                 }
 473                                 break;
 474                         }
 475                 }
 476         }
 477
 478         console.log("cur: " + getActiveArticleId() + " next: " + next_id);
 479
 480         if (mode == "next") {
 481                 if (next_id || getActiveArticleId()) {
 482                         if (isCdmMode()) {
 483
 484                                 var article = $("RROW-" + getActiveArticleId());
 485                                 var ctr = $("headlines-frame");
 486
 487                                 if (!noscroll && article && article.offsetTop + article.offsetHeight >
 488                                                 ctr.scrollTop + ctr.offsetHeight) {
 489
 490                                         scrollArticle(ctr.offsetHeight/4);
 491
 492                                 } else if (next_id) {
 493                                         cdmExpandArticle(next_id, noexpand);
 494                                         cdmScrollToArticleId(next_id, true);
 495                                 }
 496
 497                         } else if (next_id) {
 498                                 correctHeadlinesOffset(next_id);
 499                                 view(next_id, getActiveFeedId(), noexpand);
 500                         }
 501                 }
 502         }
 503
 504         if (mode == "prev") {
 505                 if (prev_id || getActiveArticleId()) {
 506                         if (isCdmMode()) {
 507
 508                                 var article = $("RROW-" + getActiveArticleId());
 509                                 const prev_article = $("RROW-" + prev_id);
 510                                 var ctr = $("headlines-frame");
 511
 512                                 if (!getInitParam("cdm_expanded")) {
 513
 514                                         if (!noscroll && article && article.offsetTop < ctr.scrollTop) {
 515                                                 scrollArticle(-ctr.offsetHeight/4);
 516                                         } else {
 517                                                 cdmExpandArticle(prev_id, noexpand);
 518                                                 cdmScrollToArticleId(prev_id, true);
 519                                         }
 520                                 } else if (!noscroll && article && article.offsetTop < ctr.scrollTop) {
 521                                                 scrollArticle(-ctr.offsetHeight/3);
 522                                         } else if (!noscroll && prev_article &&
 523                                                         prev_article.offsetTop < ctr.scrollTop) {
 524                                                 cdmExpandArticle(prev_id, noexpand);
 525                                                 scrollArticle(-ctr.offsetHeight/4);
 526                                         } else if (prev_id) {
 527                                                 cdmExpandArticle(prev_id, noexpand);
 528                                                 cdmScrollToArticleId(prev_id, noscroll);
 529                                         }
 530
 531                         } else if (prev_id) {
 532                                 correctHeadlinesOffset(prev_id);
 533                                 view(prev_id, getActiveFeedId(), noexpand);
 534                         }
 535                 }
 536         }
 537
 538 }
 539
 540 function toggleSelected(id, force_on) {
 541         const row = $("RROW-" + id);
 542
 543         if (row) {
 544                 const cb = dijit.getEnclosingWidget(
 545                                 row.getElementsByClassName("rchk")[0]);
 546
 547                 if (row.hasClassName('Selected') && !force_on) {
 548                         row.removeClassName('Selected');
 549                         if (cb) cb.attr("checked", false);
 550                 } else {
 551                         row.addClassName('Selected');
 552                         if (cb) cb.attr("checked", true);
 553                 }
 554         }
 555
 556         updateSelectedPrompt();
 557 }
 558
 559 function updateSelectedPrompt() {
 560         const count = getSelectedArticleIds2().length;
 561         const elem = $("selected_prompt");
 562
 563         if (elem) {
 564                 elem.innerHTML = ngettext("%d article selected",
 565                                 "%d articles selected", count).replace("%d", count);
 566
 567                 if (count > 0)
 568                         Element.show(elem);
 569                 else
 570                         Element.hide(elem);
 571         }
 572
 573 }
 574
 575 function toggleUnread(id, cmode) {
 576         const row = $("RROW-" + id);
 577         if (row) {
 578                 const tmpClassName = row.className;
 579
 580                 if (cmode == undefined || cmode == 2) {
 581                         if (row.hasClassName("Unread")) {
 582                                 row.removeClassName("Unread");
 583
 584                         } else {
 585                                 row.addClassName("Unread");
 586                         }
 587
 588                 } else if (cmode == 0) {
 589
 590                         row.removeClassName("Unread");
 591
 592                 } else if (cmode == 1) {
 593                         row.addClassName("Unread");
 594                 }
 595
 596                 if (tmpClassName != row.className) {
 597             if (cmode == undefined) cmode = 2;
 598
 599             const query = {op: "rpc", method: "catchupSelected",
 600                 cmode: cmode, ids: id};
 601
 602             xhrPost("backend.php", query, (transport) => {
 603                                         handle_rpc_json(transport);
 604
 605                         });
 606                 }
 607         }
 608 }
 609
 610 function selectionRemoveLabel(id, ids) {
 611         if (!ids) ids = getSelectedArticleIds2();
 612
 613         if (ids.length == 0) {
 614                 alert(__("No articles are selected."));
 615                 return;
 616         }
 617
 618         const query = { op: "article", method: "removeFromLabel",
 619                 ids: ids.toString(), lid: id };
 620
 621         xhrPost("backend.php", query, (transport) => {
 622         handle_rpc_json(transport);
 623         show_labels_in_headlines(transport);
 624         });
 625 }
 626
 627 function selectionAssignLabel(id, ids) {
 628         if (!ids) ids = getSelectedArticleIds2();
 629
 630         if (ids.length == 0) {
 631                 alert(__("No articles are selected."));
 632                 return;
 633         }
 634
 635         const query = { op: "article", method: "assignToLabel",
 636                 ids: ids.toString(), lid: id };
 637
 638     xhrPost("backend.php", query, (transport) => {
 639         handle_rpc_json(transport);
 640         show_labels_in_headlines(transport);
 641     });
 642 }
 643
 644 function selectionToggleUnread(set_state, callback, no_error, ids) {
 645         const rows = ids ? ids : getSelectedArticleIds2();
 646
 647         if (rows.length == 0 && !no_error) {
 648                 alert(__("No articles are selected."));
 649                 return;
 650         }
 651
 652         for (let i = 0; i < rows.length; i++) {
 653                 const row = $("RROW-" + rows[i]);
 654                 if (row) {
 655                         if (set_state == undefined) {
 656                                 if (row.hasClassName("Unread")) {
 657                                         row.removeClassName("Unread");
 658                                 } else {
 659                                         row.addClassName("Unread");
 660                                 }
 661                         }
 662
 663                         if (set_state == false) {
 664                                 row.removeClassName("Unread");
 665                         }
 666
 667                         if (set_state == true) {
 668                                 row.addClassName("Unread");
 669                         }
 670                 }
 671         }
 672
 673         updateFloatingTitle(true);
 674
 675         if (rows.length > 0) {
 676
 677                 let cmode = "";
 678
 679                 if (set_state == undefined) {
 680                         cmode = "2";
 681                 } else if (set_state == true) {
 682                         cmode = "1";
 683                 } else if (set_state == false) {
 684                         cmode = "0";
 685                 }
 686
 687                 const query = {op: "rpc", method: "catchupSelected",
 688                         cmode: cmode, ids: rows.toString() };
 689
 690                 notify_progress("Loading, please wait...");
 691
 692         xhrPost("backend.php", query, (transport) => {
 693             handle_rpc_json(transport);
 694             if (callback) callback(transport);
 695         });
 696
 697         }
 698 }
 699
 700 // sel_state ignored
 701 function selectionToggleMarked(sel_state, callback, no_error, ids) {
 702         const rows = ids ? ids : getSelectedArticleIds2();
 703
 704         if (rows.length == 0 && !no_error) {
 705                 alert(__("No articles are selected."));
 706                 return;
 707         }
 708
 709         for (let i = 0; i < rows.length; i++) {
 710                 toggleMark(rows[i], true, true);
 711         }
 712
 713         if (rows.length > 0) {
 714                 const query = { op: "rpc", method: "markSelected",
 715                         ids:  rows.toString(), cmode: 2 };
 716
 717         xhrPost("backend.php", query, (transport) => {
 718             handle_rpc_json(transport);
 719             if (callback) callback(transport);
 720         });
 721         }
 722 }
 723
 724 // sel_state ignored
 725 function selectionTogglePublished(sel_state, callback, no_error, ids) {
 726         const rows = ids ? ids : getSelectedArticleIds2();
 727
 728         if (rows.length == 0 && !no_error) {
 729                 alert(__("No articles are selected."));
 730                 return;
 731         }
 732
 733         for (let i = 0; i < rows.length; i++) {
 734                 togglePub(rows[i], true, true);
 735         }
 736
 737         if (rows.length > 0) {
 738         const query = { op: "rpc", method: "publishSelected",
 739             ids:  rows.toString(), cmode: 2 };
 740
 741         xhrPost("backend.php", query, (transport) => {
 742             handle_rpc_json(transport);
 743             if (callback) callback(transport);
 744         });
 745         }
 746 }
 747
 748 function getSelectedArticleIds2() {
 749
 750         const rv = [];
 751
 752         $$("#headlines-frame > div[id*=RROW][class*=Selected]").each(
 753                 function(child) {
 754                         rv.push(child.getAttribute("data-article-id"));
 755                 });
 756
 757         return rv;
 758 }
 759
 760 function getLoadedArticleIds() {
 761         const rv = [];
 762
 763         const children = $$("#headlines-frame > div[id*=RROW-]");
 764
 765         children.each(function(child) {
 766                 if (Element.visible(child)) {
 767                         rv.push(child.getAttribute("data-article-id"));
 768                 }
 769         });
 770
 771         return rv;
 772
 773 }
 774
 775 // mode = all,none,unread,invert,marked,published
 776 function selectArticles(mode, query) {
 777         if (!query) query = "#headlines-frame > div[id*=RROW]";
 778
 779         const children = $$(query);
 780
 781         children.each(function(child) {
 782                 //const id = child.getAttribute("data-article-id");
 783
 784                 const cb = dijit.getEnclosingWidget(
 785                                 child.getElementsByClassName("rchk")[0]);
 786
 787                 if (mode == "all") {
 788                         child.addClassName("Selected");
 789                         if (cb) cb.attr("checked", true);
 790                 } else if (mode == "unread") {
 791                         if (child.hasClassName("Unread")) {
 792                                 child.addClassName("Selected");
 793                                 if (cb) cb.attr("checked", true);
 794                         } else {
 795                                 child.removeClassName("Selected");
 796                                 if (cb) cb.attr("checked", false);
 797                         }
 798                 } else if (mode == "marked") {
 799                         if (child.hasClassName("marked")) {
 800                                 child.addClassName("Selected");
 801                                 if (cb) cb.attr("checked", true);
 802                         } else {
 803                                 child.removeClassName("Selected");
 804                                 if (cb) cb.attr("checked", false);
 805                         }
 806                 } else if (mode == "published") {
 807                         if (child.hasClassName("published")) {
 808                                 child.addClassName("Selected");
 809                                 if (cb) cb.attr("checked", true);
 810                         } else {
 811                                 child.removeClassName("Selected");
 812                                 if (cb) cb.attr("checked", false);
 813                         }
 814
 815                 } else if (mode == "invert") {
 816                         if (child.hasClassName("Selected")) {
 817                                 child.removeClassName("Selected");
 818                                 if (cb) cb.attr("checked", false);
 819                         } else {
 820                                 child.addClassName("Selected");
 821                                 if (cb) cb.attr("checked", true);
 822                         }
 823
 824                 } else {
 825                         child.removeClassName("Selected");
 826                         if (cb) cb.attr("checked", false);
 827                 }
 828         });
 829
 830         updateSelectedPrompt();
 831 }
 832
 833 function deleteSelection() {
 834
 835         const rows = getSelectedArticleIds2();
 836
 837         if (rows.length == 0) {
 838                 alert(__("No articles are selected."));
 839                 return;
 840         }
 841
 842         const fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
 843         let str;
 844
 845         if (getActiveFeedId() != 0) {
 846                 str = ngettext("Delete %d selected article in %s?", "Delete %d selected articles in %s?", rows.length);
 847         } else {
 848                 str = ngettext("Delete %d selected article?", "Delete %d selected articles?", rows.length);
 849         }
 850
 851         str = str.replace("%d", rows.length);
 852         str = str.replace("%s", fn);
 853
 854         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 855                 return;
 856         }
 857
 858         const query = { op: "rpc", method: "delete", ids: rows.toString() };
 859
 860         xhrPost("backend.php", query, (transport) => {
 861         handle_rpc_json(transport);
 862         viewCurrentFeed();
 863         });
 864 }
 865
 866 function archiveSelection() {
 867
 868     const rows = getSelectedArticleIds2();
 869
 870     if (rows.length == 0) {
 871         alert(__("No articles are selected."));
 872         return;
 873     }
 874
 875     const fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
 876     let str;
 877     let op;
 878
 879     if (getActiveFeedId() != 0) {
 880         str = ngettext("Archive %d selected article in %s?", "Archive %d selected articles in %s?", rows.length);
 881         op = "archive";
 882     } else {
 883         str = ngettext("Move %d archived article back?", "Move %d archived articles back?", rows.length);
 884
 885         str += " " + __("Please note that unstarred articles might get purged on next feed update.");
 886
 887         op = "unarchive";
 888     }
 889
 890     str = str.replace("%d", rows.length);
 891     str = str.replace("%s", fn);
 892
 893     if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 894         return;
 895     }
 896
 897     for (let i = 0; i < rows.length; i++) {
 898         cache_delete("article:" + rows[i]);
 899     }
 900
 901     const query = {op: "rpc", method: op, ids: rows.toString()};
 902
 903     xhrPost("backend.php", query, (transport) => {
 904         handle_rpc_json(transport);
 905         viewCurrentFeed();
 906     });
 907 }
 908
 909 function catchupSelection() {
 910
 911         const rows = getSelectedArticleIds2();
 912
 913         if (rows.length == 0) {
 914                 alert(__("No articles are selected."));
 915                 return;
 916         }
 917
 918         const fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
 919
 920         let str = ngettext("Mark %d selected article in %s as read?", "Mark %d selected articles in %s as read?", rows.length);
 921
 922         str = str.replace("%d", rows.length);
 923         str = str.replace("%s", fn);
 924
 925         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 926                 return;
 927         }
 928
 929         selectionToggleUnread(false, 'viewCurrentFeed()', true);
 930 }
 931
 932 function editArticleTags(id) {
 933         const query = "backend.php?op=article&method=editArticleTags&param=" + param_escape(id);
 934
 935         if (dijit.byId("editTagsDlg"))
 936                 dijit.byId("editTagsDlg").destroyRecursive();
 937
 938         const dialog = new dijit.Dialog({
 939                 id: "editTagsDlg",
 940                 title: __("Edit article Tags"),
 941                 style: "width: 600px",
 942                 execute: function() {
 943                         if (this.validate()) {
 944                                 const query = dojo.objectToQuery(this.attr('value'));
 945
 946                                 notify_progress("Saving article tags...", true);
 947
 948                                 xhrPost("backend.php", this.attr('value'), (transport) => {
 949                     try {
 950                         notify('');
 951                         dialog.hide();
 952
 953                         const data = JSON.parse(transport.responseText);
 954
 955                         if (data) {
 956                             const id = data.id;
 957
 958                             const tags = $("ATSTR-" + id);
 959                             const tooltip = dijit.byId("ATSTRTIP-" + id);
 960
 961                             if (tags) tags.innerHTML = data.content;
 962                             if (tooltip) tooltip.attr('label', data.content_full);
 963                         }
 964                     } catch (e) {
 965                         exception_error(e);
 966                     }
 967                                 });
 968                         }
 969                 },
 970                 href: query
 971         });
 972
 973         var tmph = dojo.connect(dialog, 'onLoad', function() {
 974                 dojo.disconnect(tmph);
 975
 976                 new Ajax.Autocompleter('tags_str', 'tags_choices',
 977                    "backend.php?op=article&method=completeTags",
 978                    { tokens: ',', paramName: "search" });
 979         });
 980
 981         dialog.show();
 982
 983 }
 984
 985 function cdmScrollToArticleId(id, force) {
 986         const ctr = $("headlines-frame");
 987         const e = $("RROW-" + id);
 988
 989         if (!e || !ctr) return;
 990
 991         if (force || e.offsetTop+e.offsetHeight > (ctr.scrollTop+ctr.offsetHeight) ||
 992                         e.offsetTop < ctr.scrollTop) {
 993
 994                 // expanded cdm has a 4px margin now
 995                 ctr.scrollTop = parseInt(e.offsetTop) - 4;
 996         }
 997 }
 998
 999 function setActiveArticleId(id) {
1000         console.log("setActiveArticleId:" + id);
1001
1002         _active_article_id = id;
1003         PluginHost.run(PluginHost.HOOK_ARTICLE_SET_ACTIVE, _active_article_id);
1004 }
1005
1006 function getActiveArticleId() {
1007         return _active_article_id;
1008 }
1009
1010 function postMouseIn(e, id) {
1011         post_under_pointer = id;
1012 }
1013
1014 function postMouseOut(id) {
1015         post_under_pointer = false;
1016 }
1017
1018 function unpackVisibleHeadlines() {
1019         if (!isCdmMode() || !getInitParam("cdm_expanded")) return;
1020
1021         $$("#headlines-frame span.cencw[id]").each(
1022                 function (child) {
1023                         const row = $("RROW-" + child.id.replace("CENCW-", ""));
1024
1025                         if (row && row.offsetTop <= $("headlines-frame").scrollTop +
1026                                 $("headlines-frame").offsetHeight) {
1027
1028                                 //console.log("unpacking: " + child.id);
1029
1030                                 child.innerHTML = htmlspecialchars_decode(child.innerHTML);
1031                                 child.removeAttribute('id');
1032
1033                                 PluginHost.run(PluginHost.HOOK_ARTICLE_RENDERED_CDM, row);
1034
1035                                 Element.show(child);
1036                         }
1037                 }
1038         );
1039 }
1040
1041 function headlines_scroll_handler(e) {
1042         try {
1043
1044                 // rate-limit in case of smooth scrolling and similar abominations
1045                 if (Math.max(e.scrollTop, _headlines_scroll_offset) - Math.min(e.scrollTop, _headlines_scroll_offset) < 25) {
1046                         return;
1047                 }
1048
1049                 _headlines_scroll_offset = e.scrollTop;
1050
1051                 const hsp = $("headlines-spacer");
1052
1053                 unpackVisibleHeadlines();
1054
1055                 // set topmost child in the buffer as active
1056                 if (isCdmMode() && getInitParam("cdm_auto_catchup") == 1 &&
1057                                 getSelectedArticleIds2().length <= 1 &&
1058                                 getInitParam("cdm_expanded")) {
1059
1060                         const rows = $$("#headlines-frame > div[id*=RROW]");
1061
1062                         for (let i = 0; i < rows.length; i++) {
1063                                 const child = rows[i];
1064
1065                                 if ($("headlines-frame").scrollTop <= child.offsetTop &&
1066                                         child.offsetTop - $("headlines-frame").scrollTop < 100 &&
1067                                         child.getAttribute("data-article-id") != _active_article_id) {
1068
1069                                         if (_active_article_id) {
1070                                                 const row = $("RROW-" + _active_article_id);
1071                                                 if (row) row.removeClassName("active");
1072                                         }
1073
1074                                         _active_article_id = child.getAttribute("data-article-id");
1075                                         showArticleInHeadlines(_active_article_id, true);
1076                                         updateSelectedPrompt();
1077                                         break;
1078                                 }
1079                         }
1080                 }
1081
1082                 if (!_infscroll_disable) {
1083                         if (hsp && hsp.offsetTop - 250 <= e.scrollTop + e.offsetHeight) {
1084
1085                                 hsp.innerHTML = "<span class='loading'><img src='images/indicator_tiny.gif'> " +
1086                                         __("Loading, please wait...") + "</span>";
1087
1088                                 loadMoreHeadlines();
1089                                 return;
1090
1091                         }
1092                 }
1093
1094                 if (isCdmMode()) {
1095                         updateFloatingTitle();
1096                 }
1097
1098                 catchupCurrentBatchIfNeeded();
1099
1100                 if (getInitParam("cdm_auto_catchup") == 1) {
1101
1102                         // let's get DOM some time to settle down
1103                         const ts = new Date().getTime();
1104                         if (ts - _last_headlines_update < 100) return;
1105
1106                         $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
1107                                 function(child) {
1108                                         if ($("headlines-frame").scrollTop > (child.offsetTop + child.offsetHeight/2)) {
1109
1110                                                 const id = child.getAttribute("data-article-id")
1111
1112                                                 if (catchup_id_batch.indexOf(id) == -1)
1113                                                         catchup_id_batch.push(id);
1114
1115                                                 //console.log("auto_catchup_batch: " + catchup_id_batch.toString());
1116                                         }
1117
1118                                 });
1119
1120                         if (_infscroll_disable) {
1121                                 const child = $$("#headlines-frame div[id*=RROW]").last();
1122
1123                                 if (child && $("headlines-frame").scrollTop >
1124                                                 (child.offsetTop + child.offsetHeight - 50)) {
1125
1126                                         console.log("we seem to be at an end");
1127
1128                                         if (getInitParam("on_catchup_show_next_feed") == "1") {
1129                                                 openNextUnreadFeed();
1130                                         }
1131                                 }
1132                         }
1133                 }
1134
1135         } catch (e) {
1136                 console.warn("headlines_scroll_handler: " + e);
1137         }
1138 }
1139
1140 function openNextUnreadFeed() {
1141         const is_cat = activeFeedIsCat();
1142         const nuf = getNextUnreadFeed(getActiveFeedId(), is_cat);
1143         if (nuf) viewfeed({feed: nuf, is_cat: is_cat});
1144 }
1145
1146 function catchupBatchedArticles() {
1147         if (catchup_id_batch.length > 0 && !_infscroll_request_sent && !_catchup_request_sent) {
1148
1149                 console.log("catchupBatchedArticles: working");
1150
1151                 // make a copy of the array
1152                 const batch = catchup_id_batch.slice();
1153                 const query = { op: "rpc", method: "catchupSelected",
1154                         cmode: 0, ids: batch.toString() };
1155
1156                 _catchup_request_sent = true;
1157
1158                 xhrPost("backend.php", query, (transport) => {
1159             const reply = handle_rpc_json(transport);
1160
1161             _catchup_request_sent = false;
1162
1163             if (reply) {
1164                 const batch = reply.ids;
1165
1166                 batch.each(function (id) {
1167                     console.log(id);
1168                     const elem = $("RROW-" + id);
1169                     if (elem) elem.removeClassName("Unread");
1170                     catchup_id_batch.remove(id);
1171                 });
1172             }
1173
1174             updateFloatingTitle(true);
1175                 });
1176         }
1177 }
1178
1179 function catchupRelativeToArticle(below, id) {
1180
1181         if (!id) id = getActiveArticleId();
1182
1183         if (!id) {
1184                 alert(__("No article is selected."));
1185                 return;
1186         }
1187
1188         const visible_ids = getLoadedArticleIds();
1189
1190         const ids_to_mark = [];
1191
1192         if (!below) {
1193                 for (var i = 0; i < visible_ids.length; i++) {
1194                         if (visible_ids[i] != id) {
1195                                 var e = $("RROW-" + visible_ids[i]);
1196
1197                                 if (e && e.hasClassName("Unread")) {
1198                                         ids_to_mark.push(visible_ids[i]);
1199                                 }
1200                         } else {
1201                                 break;
1202                         }
1203                 }
1204         } else {
1205                 for (var i = visible_ids.length - 1; i >= 0; i--) {
1206                         if (visible_ids[i] != id) {
1207                                 var e = $("RROW-" + visible_ids[i]);
1208
1209                                 if (e && e.hasClassName("Unread")) {
1210                                         ids_to_mark.push(visible_ids[i]);
1211                                 }
1212                         } else {
1213                                 break;
1214                         }
1215                 }
1216         }
1217
1218         if (ids_to_mark.length == 0) {
1219                 alert(__("No articles found to mark"));
1220         } else {
1221                 const msg = ngettext("Mark %d article as read?", "Mark %d articles as read?", ids_to_mark.length).replace("%d", ids_to_mark.length);
1222
1223                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(msg)) {
1224
1225                         for (var i = 0; i < ids_to_mark.length; i++) {
1226                                 var e = $("RROW-" + ids_to_mark[i]);
1227                                 e.removeClassName("Unread");
1228                         }
1229
1230                         const query = { op: "rpc", method: "catchupSelected",
1231                                 cmode: 0, ids: ids_to_mark.toString() };
1232
1233                         xhrPost("backend.php", query, (transport) => {
1234                 handle_rpc_json(transport);
1235                         });
1236                 }
1237         }
1238 }
1239
1240 function cdmCollapseArticle(event, id, unmark) {
1241         if (unmark == undefined) unmark = true;
1242
1243         const row = $("RROW-" + id);
1244         const elem = $("CICD-" + id);
1245
1246         if (elem && row) {
1247                 const collapse = row.select("span[class='collapseBtn']")[0];
1248
1249                 Element.hide(elem);
1250                 Element.show("CEXC-" + id);
1251                 Element.hide(collapse);
1252
1253                 if (unmark) {
1254                         row.removeClassName("active");
1255
1256                         markHeadline(id, false);
1257
1258                         if (id == getActiveArticleId()) {
1259                                 setActiveArticleId(0);
1260                         }
1261
1262                         updateSelectedPrompt();
1263                 }
1264
1265                 if (event) Event.stop(event);
1266
1267                 PluginHost.run(PluginHost.HOOK_ARTICLE_COLLAPSED, id);
1268
1269                 if (row.offsetTop < $("headlines-frame").scrollTop)
1270                         scrollToRowId(row.id);
1271
1272                 $("floatingTitle").style.visibility = "hidden";
1273                 $("floatingTitle").setAttribute("data-article-id", 0);
1274         }
1275 }
1276
1277 function cdmExpandArticle(id, noexpand) {
1278         console.log("cdmExpandArticle " + id);
1279
1280         const row = $("RROW-" + id);
1281
1282         if (!row) return false;
1283
1284         const oldrow = $("RROW-" + getActiveArticleId());
1285
1286         let elem = $("CICD-" + getActiveArticleId());
1287
1288         if (id == getActiveArticleId() && Element.visible(elem))
1289                 return true;
1290
1291         selectArticles("none");
1292
1293         const old_offset = row.offsetTop;
1294
1295         if (getActiveArticleId() && elem && !getInitParam("cdm_expanded")) {
1296                 let collapse = oldrow.select("span[class='collapseBtn']")[0];
1297
1298                 Element.hide(elem);
1299                 Element.show("CEXC-" + getActiveArticleId());
1300                 Element.hide(collapse);
1301         }
1302
1303         if (oldrow) oldrow.removeClassName("active");
1304
1305         setActiveArticleId(id);
1306
1307         elem = $("CICD-" + id);
1308
1309         let collapse = row.select("span[class='collapseBtn']")[0];
1310
1311         const cencw = $("CENCW-" + id);
1312
1313         if (!Element.visible(elem) && !noexpand) {
1314                 if (cencw) {
1315                         cencw.innerHTML = htmlspecialchars_decode(cencw.innerHTML);
1316                         cencw.setAttribute('id', '');
1317                         Element.show(cencw);
1318                 }
1319
1320                 Element.show(elem);
1321                 Element.hide("CEXC-" + id);
1322                 Element.show(collapse);
1323         }
1324
1325         const new_offset = row.offsetTop;
1326
1327         if (old_offset > new_offset)
1328                 $("headlines-frame").scrollTop -= (old_offset - new_offset);
1329
1330         if (!noexpand) {
1331                 if (catchup_id_batch.indexOf(id) == -1)
1332                         catchup_id_batch.push(id);
1333
1334                 catchupCurrentBatchIfNeeded();
1335         }
1336
1337         toggleSelected(id);
1338         row.addClassName("active");
1339
1340         PluginHost.run(PluginHost.HOOK_ARTICLE_EXPANDED, id);
1341
1342         return false;
1343 }
1344
1345 function getArticleUnderPointer() {
1346         return post_under_pointer;
1347 }
1348
1349 function scrollArticle(offset) {
1350         if (!isCdmMode()) {
1351                 const ci = $("content-insert");
1352                 if (ci) {
1353                         ci.scrollTop += offset;
1354                 }
1355         } else {
1356                 const hi = $("headlines-frame");
1357                 if (hi) {
1358                         hi.scrollTop += offset;
1359                 }
1360
1361         }
1362 }
1363
1364 function show_labels_in_headlines(transport) {
1365         const data = JSON.parse(transport.responseText);
1366
1367         if (data) {
1368                 data['info-for-headlines'].each(function (elem) {
1369                         $$(".HLLCTR-" + elem.id).each(function (ctr) {
1370                                 ctr.innerHTML = elem.labels;
1371                         });
1372                 });
1373         }
1374 }
1375
1376 function cdmClicked(event, id, in_body) {
1377         //var shift_key = event.shiftKey;
1378
1379         if (!event.ctrlKey && !event.metaKey) {
1380
1381                 if (!getInitParam("cdm_expanded")) {
1382                         return cdmExpandArticle(id);
1383                 } else {
1384
1385                         let elem = $("RROW-" + getActiveArticleId());
1386
1387                         if (elem) elem.removeClassName("active");
1388
1389                         selectArticles("none");
1390                         toggleSelected(id);
1391
1392                         elem = $("RROW-" + id);
1393                         const article_is_unread = elem.hasClassName("Unread");
1394
1395                         elem.removeClassName("Unread");
1396                         elem.addClassName("active");
1397
1398                         setActiveArticleId(id);
1399
1400                         if (article_is_unread) {
1401                 decrementFeedCounter(getActiveFeedId(), activeFeedIsCat());
1402                 updateFloatingTitle(true);
1403
1404                 const query = {
1405                     op: "rpc", method: "catchupSelected",
1406                     cmode: 0, ids: id
1407                 };
1408
1409                 xhrPost("backend.php", query, (transport) => {
1410                     handle_rpc_json(transport);
1411                 });
1412             }
1413
1414                         return !event.shiftKey;
1415                 }
1416
1417         } else if (!in_body) {
1418
1419                 toggleSelected(id, true);
1420
1421                 let elem = $("RROW-" + id);
1422                 const article_is_unread = elem.hasClassName("Unread");
1423
1424                 if (article_is_unread) {
1425                         decrementFeedCounter(getActiveFeedId(), activeFeedIsCat());
1426                 }
1427
1428                 toggleUnread(id, 0, false);
1429
1430                 openArticleInNewWindow(id);
1431         } else {
1432                 return true;
1433         }
1434
1435         const unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length
1436         request_counters(unread_in_buffer == 0);
1437
1438         return false;
1439 }
1440
1441 function hlClicked(event, id) {
1442         if (event.which == 2) {
1443                 view(id);
1444                 return true;
1445         } else if (event.ctrlKey || event.metaKey) {
1446                 openArticleInNewWindow(id);
1447                 return false;
1448         } else {
1449                 view(id);
1450                 return false;
1451         }
1452 }
1453
1454 function openArticleInNewWindow(id) {
1455         toggleUnread(id, 0, false);
1456
1457         const w = window.open("");
1458         w.opener = null;
1459         w.location = "backend.php?op=article&method=redirect&id=" + id;
1460 }
1461
1462 function isCdmMode() {
1463         return getInitParam("combined_display_mode");
1464 }
1465
1466 function markHeadline(id, marked) {
1467         if (marked == undefined) marked = true;
1468
1469         const row = $("RROW-" + id);
1470         if (row) {
1471                 const check = dijit.getEnclosingWidget(
1472                                 row.getElementsByClassName("rchk")[0]);
1473
1474                 if (check) {
1475                         check.attr("checked", marked);
1476                 }
1477
1478                 if (marked)
1479                         row.addClassName("Selected");
1480                 else
1481                         row.removeClassName("Selected");
1482         }
1483 }
1484
1485 function getRelativePostIds(id, limit) {
1486
1487         const tmp = [];
1488
1489         if (!limit) limit = 6; //3
1490
1491         const ids = getLoadedArticleIds();
1492
1493         for (let i = 0; i < ids.length; i++) {
1494                 if (ids[i] == id) {
1495                         for (let k = 1; k <= limit; k++) {
1496                                 //if (i > k-1) tmp.push(ids[i-k]);
1497                                 if (i < ids.length - k) tmp.push(ids[i + k]);
1498                         }
1499                         break;
1500                 }
1501         }
1502
1503         return tmp;
1504 }
1505
1506 function correctHeadlinesOffset(id) {
1507
1508         const container = $("headlines-frame");
1509         const row = $("RROW-" + id);
1510
1511         if (!container || !row) return;
1512
1513         const viewport = container.offsetHeight;
1514
1515         const rel_offset_top = row.offsetTop - container.scrollTop;
1516         const rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
1517
1518         //console.log("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
1519         //console.log("Vport: " + viewport);
1520
1521         if (rel_offset_top <= 0 || rel_offset_top > viewport) {
1522                 container.scrollTop = row.offsetTop;
1523         } else if (rel_offset_bottom > viewport) {
1524
1525                 /* doesn't properly work with Opera in some cases because
1526                  Opera fucks up element scrolling */
1527
1528                 container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
1529         }
1530 }
1531
1532 function headlineActionsChange(elem) {
1533         eval(elem.value);
1534         elem.attr('value', 'false');
1535 }
1536
1537 function closeArticlePanel() {
1538
1539         if (dijit.byId("content-insert"))
1540                 dijit.byId("headlines-wrap-inner").removeChild(
1541                         dijit.byId("content-insert"));
1542 }
1543
1544 function initFloatingMenu() {
1545         if (!dijit.byId("floatingMenu")) {
1546
1547                 const menu = new dijit.Menu({
1548                         id: "floatingMenu",
1549                         targetNodeIds: ["floatingTitle"]
1550                 });
1551
1552                 headlinesMenuCommon(menu);
1553
1554                 menu.startup();
1555         }
1556 }
1557
1558 function headlinesMenuCommon(menu) {
1559
1560         menu.addChild(new dijit.MenuItem({
1561                 label: __("Open original article"),
1562                 onClick: function (event) {
1563                         openArticleInNewWindow(this.getParent().currentTarget.getAttribute("data-article-id"));
1564                 }
1565         }));
1566
1567         menu.addChild(new dijit.MenuItem({
1568                 label: __("Display article URL"),
1569                 onClick: function (event) {
1570                         displayArticleUrl(this.getParent().currentTarget.getAttribute("data-article-id"));
1571                 }
1572         }));
1573
1574         menu.addChild(new dijit.MenuSeparator());
1575
1576         menu.addChild(new dijit.MenuItem({
1577                 label: __("Toggle unread"),
1578                 onClick: function () {
1579
1580                         let ids = getSelectedArticleIds2();
1581                         // cast to string
1582                         const id = (this.getParent().currentTarget.getAttribute("data-article-id")) + "";
1583                         ids = ids.length != 0 && ids.indexOf(id) != -1 ? ids : [id];
1584
1585                         selectionToggleUnread(undefined, false, true, ids);
1586                 }
1587         }));
1588
1589         menu.addChild(new dijit.MenuItem({
1590                 label: __("Toggle starred"),
1591                 onClick: function () {
1592                         let ids = getSelectedArticleIds2();
1593                         // cast to string
1594                         const id = (this.getParent().currentTarget.getAttribute("data-article-id")) + "";
1595                         ids = ids.length != 0 && ids.indexOf(id) != -1 ? ids : [id];
1596
1597                         selectionToggleMarked(undefined, false, true, ids);
1598                 }
1599         }));
1600
1601         menu.addChild(new dijit.MenuItem({
1602                 label: __("Toggle published"),
1603                 onClick: function () {
1604                         let ids = getSelectedArticleIds2();
1605                         // cast to string
1606                         const id = (this.getParent().currentTarget.getAttribute("data-article-id")) + "";
1607                         ids = ids.length != 0 && ids.indexOf(id) != -1 ? ids : [id];
1608
1609                         selectionTogglePublished(undefined, false, true, ids);
1610                 }
1611         }));
1612
1613         menu.addChild(new dijit.MenuSeparator());
1614
1615         menu.addChild(new dijit.MenuItem({
1616                 label: __("Mark above as read"),
1617                 onClick: function () {
1618                         catchupRelativeToArticle(0, this.getParent().currentTarget.getAttribute("data-article-id"));
1619                 }
1620         }));
1621
1622         menu.addChild(new dijit.MenuItem({
1623                 label: __("Mark below as read"),
1624                 onClick: function () {
1625                         catchupRelativeToArticle(1, this.getParent().currentTarget.getAttribute("data-article-id"));
1626                 }
1627         }));
1628
1629
1630         const labels = getInitParam("labels");
1631
1632         if (labels && labels.length) {
1633
1634                 menu.addChild(new dijit.MenuSeparator());
1635
1636                 const labelAddMenu = new dijit.Menu({ownerMenu: menu});
1637                 const labelDelMenu = new dijit.Menu({ownerMenu: menu});
1638
1639                 labels.each(function (label) {
1640                         const bare_id = label.id;
1641                         const name = label.caption;
1642
1643                         labelAddMenu.addChild(new dijit.MenuItem({
1644                                 label: name,
1645                                 labelId: bare_id,
1646                                 onClick: function () {
1647
1648                                         let ids = getSelectedArticleIds2();
1649                                         // cast to string
1650                                         const id = (this.getParent().ownerMenu.currentTarget.getAttribute("data-article-id")) + "";
1651
1652                                         ids = ids.length != 0 && ids.indexOf(id) != -1 ? ids : [id];
1653
1654                                         selectionAssignLabel(this.labelId, ids);
1655                                 }
1656                         }));
1657
1658                         labelDelMenu.addChild(new dijit.MenuItem({
1659                                 label: name,
1660                                 labelId: bare_id,
1661                                 onClick: function () {
1662                                         let ids = getSelectedArticleIds2();
1663                                         // cast to string
1664                                         const id = (this.getParent().ownerMenu.currentTarget.getAttribute("data-article-id")) + "";
1665
1666                                         ids = ids.length != 0 && ids.indexOf(id) != -1 ? ids : [id];
1667
1668                                         selectionRemoveLabel(this.labelId, ids);
1669                                 }
1670                         }));
1671
1672                 });
1673
1674                 menu.addChild(new dijit.PopupMenuItem({
1675                         label: __("Assign label"),
1676                         popup: labelAddMenu
1677                 }));
1678
1679                 menu.addChild(new dijit.PopupMenuItem({
1680                         label: __("Remove label"),
1681                         popup: labelDelMenu
1682                 }));
1683
1684         }
1685 }
1686
1687 function initHeadlinesMenu() {
1688         if (!dijit.byId("headlinesMenu")) {
1689
1690                 const menu = new dijit.Menu({
1691                         id: "headlinesMenu",
1692                         targetNodeIds: ["headlines-frame"],
1693                         selector: ".hlMenuAttach"
1694                 });
1695
1696                 headlinesMenuCommon(menu);
1697
1698                 menu.startup();
1699         }
1700
1701         /* vgroup feed title menu */
1702
1703         if (!dijit.byId("headlinesFeedTitleMenu")) {
1704
1705                 const menu = new dijit.Menu({
1706                         id: "headlinesFeedTitleMenu",
1707                         targetNodeIds: ["headlines-frame"],
1708                         selector: "div.cdmFeedTitle"
1709                 });
1710
1711                 menu.addChild(new dijit.MenuItem({
1712                         label: __("Select articles in group"),
1713                         onClick: function (event) {
1714                                 selectArticles("all",
1715                                         "#headlines-frame > div[id*=RROW]" +
1716                                         "[data-orig-feed-id='" + this.getParent().currentTarget.getAttribute("data-feed-id") + "']");
1717
1718                         }
1719                 }));
1720
1721                 menu.addChild(new dijit.MenuItem({
1722                         label: __("Mark group as read"),
1723                         onClick: function () {
1724                                 selectArticles("none");
1725                                 selectArticles("all",
1726                                         "#headlines-frame > div[id*=RROW]" +
1727                                         "[data-orig-feed-id='" + this.getParent().currentTarget.getAttribute("data-feed-id") + "']");
1728
1729                                 catchupSelection();
1730                         }
1731                 }));
1732
1733                 menu.addChild(new dijit.MenuItem({
1734                         label: __("Mark feed as read"),
1735                         onClick: function () {
1736                                 catchupFeedInGroup(this.getParent().currentTarget.getAttribute("data-feed-id"));
1737                         }
1738                 }));
1739
1740                 menu.addChild(new dijit.MenuItem({
1741                         label: __("Edit feed"),
1742                         onClick: function () {
1743                                 editFeed(this.getParent().currentTarget.getAttribute("data-feed-id"));
1744                         }
1745                 }));
1746
1747                 menu.startup();
1748         }
1749 }
1750
1751 function cache_set(id, obj) {
1752         //console.log("cache_set: " + id);
1753         if (has_storage)
1754                 try {
1755                         sessionStorage[id] = obj;
1756                 } catch (e) {
1757                         sessionStorage.clear();
1758                 }
1759 }
1760
1761 function cache_get(id) {
1762         if (has_storage)
1763                 return sessionStorage[id];
1764 }
1765
1766 function cache_clear() {
1767         if (has_storage)
1768                 sessionStorage.clear();
1769 }
1770
1771 function cache_delete(id) {
1772         if (has_storage)
1773                 sessionStorage.removeItem(id);
1774 }
1775
1776 function cancelSearch() {
1777         _search_query = "";
1778         viewCurrentFeed();
1779 }
1780
1781 function setSelectionScore() {
1782         const ids = getSelectedArticleIds2();
1783
1784         if (ids.length > 0) {
1785                 console.log(ids);
1786
1787                 const score = prompt(__("Please enter new score for selected articles:"));
1788
1789                 if (score != undefined) {
1790                         const query = { op: "article", method: "setScore", id: ids.toString(),
1791                                 score: score };
1792
1793                         xhrJson("backend.php", query, (reply) => {
1794                                 if (reply) {
1795                     reply.id.each((id) => {
1796                         const row = $("RROW-" + id);
1797
1798                         if (row) {
1799                             const pic = row.getElementsByClassName("hlScorePic")[0];
1800
1801                             if (pic) {
1802                                 pic.src = pic.src.replace(/score_.*?\.png/,
1803                                     reply["score_pic"]);
1804                                 pic.setAttribute("score", reply["score"]);
1805                             }
1806                         }
1807                     });
1808                 }
1809                         });
1810                 }
1811
1812         } else {
1813                 alert(__("No articles are selected."));
1814         }
1815 }
1816
1817 /*
1818 function updateScore(id) {
1819         const pic = $$("#RROW-" + id + " .hlScorePic")[0];
1820
1821         if (pic) {
1822
1823                 const query = "op=article&method=getScore&id=" + param_escape(id);
1824
1825                 new Ajax.Request("backend.php", {
1826                         parameters: query,
1827                         onComplete: function (transport) {
1828                                 console.log(transport.responseText);
1829
1830                                 const reply = JSON.parse(transport.responseText);
1831
1832                                 if (reply) {
1833                                         pic.src = pic.src.replace(/score_.*?\.png/, reply["score_pic"]);
1834                                         pic.setAttribute("score", reply["score"]);
1835                                         pic.setAttribute("title", reply["score"]);
1836                                 }
1837                         }
1838                 });
1839         }
1840 } */
1841
1842 function changeScore(id, pic) {
1843         const score = pic.getAttribute("score");
1844
1845         const new_score = prompt(__("Please enter new score for this article:"), score);
1846
1847         if (new_score != undefined) {
1848                 const query = { op: "article", method: "setScore", id: id, score: new_score };
1849
1850                 xhrJson("backend.php", query, (reply) => {
1851             if (reply) {
1852                 pic.src = pic.src.replace(/score_.*?\.png/, reply["score_pic"]);
1853                 pic.setAttribute("score", new_score);
1854                 pic.setAttribute("title", new_score);
1855             }
1856                 });
1857         }
1858 }
1859
1860 function displayArticleUrl(id) {
1861         const query = { op: "rpc", method: "getlinktitlebyid", id: id };
1862
1863         xhrJson("backend.php", query, (reply) => {
1864         if (reply && reply.link) {
1865             prompt(__("Article URL:"), reply.link);
1866         }
1867         });
1868
1869 }
1870
1871 function scrollToRowId(id) {
1872         const row = $(id);
1873
1874         if (row)
1875                 $("headlines-frame").scrollTop = row.offsetTop - 4;
1876 }
1877
1878 function updateFloatingTitle(unread_only) {
1879         if (!isCdmMode()) return;
1880
1881         const hf = $("headlines-frame");
1882
1883         const elems = $$("#headlines-frame > div[id*=RROW]");
1884
1885         for (let i = 0; i < elems.length; i++) {
1886
1887                 const child = elems[i];
1888
1889                 if (child && child.offsetTop + child.offsetHeight > hf.scrollTop) {
1890
1891                         const header = child.getElementsByClassName("cdmHeader")[0];
1892
1893                         if (unread_only || child.getAttribute("data-article-id") != $("floatingTitle").getAttribute("data-article-id")) {
1894                                 if (child.getAttribute("data-article-id") != $("floatingTitle").getAttribute("data-article-id")) {
1895
1896                                         $("floatingTitle").setAttribute("data-article-id", child.getAttribute("data-article-id"));
1897                                         $("floatingTitle").innerHTML = header.innerHTML;
1898                                         $("floatingTitle").firstChild.innerHTML = "<img class='anchor markedPic' src='images/page_white_go.png' onclick=\"scrollToRowId('" + child.id + "')\">" + $("floatingTitle").firstChild.innerHTML;
1899
1900                                         initFloatingMenu();
1901
1902                                         const cb = $$("#floatingTitle .dijitCheckBox")[0];
1903
1904                                         if (cb)
1905                                                 cb.parentNode.removeChild(cb);
1906                                 }
1907
1908                                 if (child.hasClassName("Unread"))
1909                                         $("floatingTitle").addClassName("Unread");
1910                                 else
1911                                         $("floatingTitle").removeClassName("Unread");
1912
1913                                 PluginHost.run(PluginHost.HOOK_FLOATING_TITLE, child);
1914                         }
1915
1916                         $("floatingTitle").style.marginRight = hf.offsetWidth - child.offsetWidth + "px";
1917                         if (header.offsetTop + header.offsetHeight < hf.scrollTop + $("floatingTitle").offsetHeight - 5 &&
1918                                 child.offsetTop + child.offsetHeight >= hf.scrollTop + $("floatingTitle").offsetHeight - 5)
1919                                 $("floatingTitle").style.visibility = "visible";
1920                         else
1921                                 $("floatingTitle").style.visibility = "hidden";
1922
1923                         return;
1924
1925                 }
1926         }
1927 }
1928
1929 function catchupCurrentBatchIfNeeded() {
1930         if (catchup_id_batch.length > 0) {
1931                 window.clearTimeout(catchup_timeout_id);
1932                 catchup_timeout_id = window.setTimeout(catchupBatchedArticles, 1000);
1933
1934                 if (catchup_id_batch.length >= 10) {
1935                         catchupBatchedArticles();
1936                 }
1937         }
1938 }