js/feedlist.js

   1 var _infscroll_disable = 0;
   2 var _infscroll_request_sent = 0;
   3
   4 var _search_query = false;
   5 var _viewfeed_last = 0;
   6 var _viewfeed_timeout = false;
   7
   8 var counters_last_request = 0;
   9 var _counters_prev = [];
  10
  11 function resetCounterCache() {
  12         _counters_prev = [];
  13 }
  14
  15 function loadMoreHeadlines() {
  16         console.log("loadMoreHeadlines");
  17
  18         var offset = 0;
  19
  20         var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  21         var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  22         var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  23         var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  24
  25         // TODO implement marked & published
  26
  27         if (view_mode == "marked") {
  28                 console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  29                 offset = num_all;
  30         } else if (view_mode == "published") {
  31                 console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  32                 offset = num_all;
  33         } else if (view_mode == "unread") {
  34                 offset = unread_in_buffer;
  35         } else if (_search_query) {
  36                 offset = num_all;
  37         } else if (view_mode == "adaptive" && !(getActiveFeedId() == -1 && !activeFeedIsCat())) {
  38                 // ^ starred feed shows both unread & read articles in adaptive mode
  39                 offset = num_unread > 0 ? unread_in_buffer : num_all;
  40         } else {
  41                 offset = num_all;
  42         }
  43
  44         console.log("offset: " + offset);
  45
  46         viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat(), offset: offset, infscroll_req: true});
  47
  48 }
  49
  50 function cleanup_memory(root) {
  51         var dijits = dojo.query("[widgetid]", dijit.byId(root).domNode).map(dijit.byNode);
  52
  53         dijits.each(function (d) {
  54                 dojo.destroy(d.domNode);
  55         });
  56
  57         $$("#" + root + " *").each(function (i) {
  58                 i.parentNode ? i.parentNode.removeChild(i) : true;
  59         });
  60 }
  61
  62 function viewfeed(params) {
  63         var feed = params.feed;
  64         var is_cat = params.is_cat;
  65         var offset = params.offset;
  66         var background = params.background;
  67         var infscroll_req = params.infscroll_req;
  68         var can_wait = params.can_wait;
  69         var viewfeed_debug = params.viewfeed_debug;
  70         var method = params.method;
  71
  72         if (is_cat == undefined)
  73                 is_cat = false;
  74         else
  75                 is_cat = !!is_cat;
  76
  77         if (offset == undefined) offset = 0;
  78         if (background == undefined) background = false;
  79         if (infscroll_req == undefined) infscroll_req = false;
  80
  81         last_requested_article = 0;
  82
  83         if (feed != getActiveFeedId() || activeFeedIsCat() != is_cat) {
  84                 if (!background && _search_query) _search_query = false;
  85         }
  86
  87         if (!background) {
  88                 _viewfeed_last = get_timestamp();
  89
  90                 if (getActiveFeedId() != feed || !infscroll_req) {
  91                         setActiveArticleId(0);
  92                         _infscroll_disable = 0;
  93
  94                         cleanup_memory("headlines-frame");
  95                         _headlines_scroll_offset = 0;
  96                 }
  97
  98                 if (infscroll_req) {
  99                         var timestamp = get_timestamp();
 100
 101                         if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 102                                 //console.log("infscroll request in progress, aborting");
 103                                 return;
 104                         }
 105
 106                         _infscroll_request_sent = timestamp;
 107                 }
 108         }
 109
 110         Form.enable("main_toolbar_form");
 111
 112         var toolbar_query = Form.serialize("main_toolbar_form");
 113
 114         var query = "?op=feeds&method=view&feed=" + param_escape(feed) + "&" +
 115                 toolbar_query;
 116
 117         if (method) query += "&m=" + param_escape(method);
 118
 119         if (offset > 0) {
 120                 if (current_first_id) {
 121                         query = query + "&fid=" + param_escape(current_first_id);
 122                 }
 123         }
 124
 125         if (!background) {
 126                 if (_search_query) {
 127                         force_nocache = true;
 128                         query = query + "&" + _search_query;
 129                         //_search_query = false;
 130                 }
 131
 132                 if (offset != 0) {
 133                         query = query + "&skip=" + offset;
 134
 135                         // to prevent duplicate feed titles when showing grouped vfeeds
 136                         if (vgroup_last_feed) {
 137                                 query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 138                         }
 139                 } else {
 140                         if (!is_cat && feed == getActiveFeedId() && !params.method) {
 141                                 query = query + "&m=ForceUpdate";
 142                         }
 143                 }
 144
 145                 Form.enable("main_toolbar_form");
 146
 147                 if (!setFeedExpandoIcon(feed, is_cat,
 148                         (is_cat) ? 'images/indicator_tiny.gif' : 'images/indicator_white.gif'))
 149                                 notify_progress("Loading, please wait...", true);
 150         }
 151
 152         query += "&cat=" + is_cat;
 153
 154         console.log(query);
 155
 156         if (can_wait && _viewfeed_timeout) {
 157                 setFeedExpandoIcon(getActiveFeedId(), activeFeedIsCat(), 'images/blank_icon.gif');
 158                 clearTimeout(_viewfeed_timeout);
 159         }
 160
 161         setActiveFeedId(feed, is_cat);
 162
 163         if (viewfeed_debug) {
 164                 window.open("backend.php" + query + "&debug=1&csrf_token=" + getInitParam("csrf_token"));
 165         }
 166
 167         timeout_ms = can_wait ? 250 : 0;
 168         _viewfeed_timeout = setTimeout(function() {
 169
 170                 new Ajax.Request("backend.php", {
 171                         parameters: query,
 172                         onComplete: function(transport) {
 173                                 try {
 174                                         setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 175                                         headlines_callback2(transport, offset, background, infscroll_req);
 176                                         PluginHost.run(PluginHost.HOOK_FEED_LOADED, [feed, is_cat]);
 177                                 } catch (e) {
 178                                         exception_error(e);
 179                                 }
 180                         } });
 181         }, timeout_ms); // Wait 250ms
 182
 183 }
 184
 185 function feedlist_init() {
 186         console.log("in feedlist init");
 187
 188         loading_set_progress(50);
 189
 190         document.onkeydown = hotkey_handler;
 191         setTimeout(hotkey_prefix_timeout, 5*1000);
 192
 193         if (!getActiveFeedId()) {
 194                 viewfeed({feed: -3});
 195         } else {
 196                 viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat()});
 197         }
 198
 199         hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 200
 201         // bw_limit disables timeout() so we request initial counters separately
 202     if (getInitParam("bw_limit") == "1") {
 203                 request_counters(true);
 204     } else {
 205         setTimeout(timeout, 250);
 206     }
 207 }
 208
 209
 210 function request_counters(force) {
 211         var date = new Date();
 212         var timestamp = Math.round(date.getTime() / 1000);
 213
 214         if (force || timestamp - counters_last_request > 5) {
 215                 console.log("scheduling request of counters...");
 216
 217                 counters_last_request = timestamp;
 218
 219                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 220
 221                 if (!force)
 222                         query = query + "&last_article_id=" + getInitParam("last_article_id");
 223
 224                 console.log(query);
 225
 226                 new Ajax.Request("backend.php", {
 227                         parameters: query,
 228                         onComplete: function(transport) {
 229                                 handle_rpc_json(transport);
 230                         } });
 231
 232         } else {
 233                 console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 234         }
 235 }
 236
 237 // NOTE: this implementation is incomplete
 238 // for general objects but good enough for counters
 239 // http://adripofjavascript.com/blog/drips/object-equality-in-javascript.html
 240 function counter_is_equal(a, b) {
 241         // Create arrays of property names
 242         var aProps = Object.getOwnPropertyNames(a);
 243         var bProps = Object.getOwnPropertyNames(b);
 244
 245         // If number of properties is different,
 246         // objects are not equivalent
 247         if (aProps.length != bProps.length) {
 248                 return false;
 249         }
 250
 251         for (var i = 0; i < aProps.length; i++) {
 252                 var propName = aProps[i];
 253
 254                 // If values of same property are not equal,
 255                 // objects are not equivalent
 256                 if (a[propName] !== b[propName]) {
 257                         return false;
 258                 }
 259         }
 260
 261         // If we made it this far, objects
 262         // are considered equivalent
 263         return true;
 264 }
 265
 266
 267 function parse_counters(elems) {
 268         for (var l = 0; l < elems.length; l++) {
 269
 270                 if (_counters_prev[l] && counter_is_equal(elems[l], _counters_prev[l])) {
 271                         continue;
 272                 }
 273
 274                 var id = elems[l].id;
 275                 var kind = elems[l].kind;
 276                 var ctr = parseInt(elems[l].counter);
 277                 var error = elems[l].error;
 278                 var has_img = elems[l].has_img;
 279                 var updated = elems[l].updated;
 280                 var auxctr = parseInt(elems[l].auxcounter);
 281
 282                 if (id == "global-unread") {
 283                         global_unread = ctr;
 284                         updateTitle();
 285                         continue;
 286                 }
 287
 288                 if (id == "subscribed-feeds") {
 289                         /* feeds_found = ctr; */
 290                         continue;
 291                 }
 292
 293                 /*if (getFeedUnread(id, (kind == "cat")) != ctr ||
 294                                 (kind == "cat")) {
 295                 }*/
 296
 297                 setFeedUnread(id, (kind == "cat"), ctr);
 298                 setFeedValue(id, (kind == "cat"), 'auxcounter', auxctr);
 299
 300                 if (kind != "cat") {
 301                         setFeedValue(id, false, 'error', error);
 302                         setFeedValue(id, false, 'updated', updated);
 303
 304                         if (id > 0) {
 305                                 if (has_img) {
 306                                         setFeedIcon(id, false,
 307                                                 getInitParam("icons_url") + "/" + id + ".ico");
 308                                 } else {
 309                                         setFeedIcon(id, false, 'images/blank_icon.gif');
 310                                 }
 311                         }
 312                 }
 313         }
 314
 315         hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 316
 317         _counters_prev = elems;
 318 }
 319
 320 function getFeedUnread(feed, is_cat) {
 321         try {
 322                 var tree = dijit.byId("feedTree");
 323
 324                 if (tree && tree.model)
 325                         return tree.model.getFeedUnread(feed, is_cat);
 326
 327         } catch (e) {
 328                 //
 329         }
 330
 331         return -1;
 332 }
 333
 334 function getFeedCategory(feed) {
 335         try {
 336                 var tree = dijit.byId("feedTree");
 337
 338                 if (tree && tree.model)
 339                         return tree.getFeedCategory(feed);
 340
 341         } catch (e) {
 342                 //
 343         }
 344
 345         return false;
 346 }
 347
 348 function hideOrShowFeeds(hide) {
 349         var tree = dijit.byId("feedTree");
 350
 351         if (tree)
 352                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 353 }
 354
 355 function getFeedName(feed, is_cat) {
 356
 357         if (isNaN(feed)) return feed; // it's a tag
 358
 359         var tree = dijit.byId("feedTree");
 360
 361         if (tree && tree.model)
 362                 return tree.model.getFeedValue(feed, is_cat, 'name');
 363 }
 364
 365 function getFeedValue(feed, is_cat, key) {
 366         try {
 367                 var tree = dijit.byId("feedTree");
 368
 369                 if (tree && tree.model)
 370                         return tree.model.getFeedValue(feed, is_cat, key);
 371
 372         } catch (e) {
 373                 //
 374         }
 375         return '';
 376 }
 377
 378 function setFeedUnread(feed, is_cat, unread) {
 379         var tree = dijit.byId("feedTree");
 380
 381         if (tree && tree.model)
 382                 return tree.model.setFeedUnread(feed, is_cat, unread);
 383 }
 384
 385 function setFeedValue(feed, is_cat, key, value) {
 386         try {
 387                 var tree = dijit.byId("feedTree");
 388
 389                 if (tree && tree.model)
 390                         return tree.model.setFeedValue(feed, is_cat, key, value);
 391
 392         } catch (e) {
 393                 //
 394         }
 395 }
 396
 397 function selectFeed(feed, is_cat) {
 398         var tree = dijit.byId("feedTree");
 399
 400         if (tree) return tree.selectFeed(feed, is_cat);
 401 }
 402
 403 function setFeedIcon(feed, is_cat, src) {
 404         var tree = dijit.byId("feedTree");
 405
 406         if (tree) return tree.setFeedIcon(feed, is_cat, src);
 407 }
 408
 409 function setFeedExpandoIcon(feed, is_cat, src) {
 410         var tree = dijit.byId("feedTree");
 411
 412         if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 413
 414         return false;
 415 }
 416
 417 function getNextUnreadFeed(feed, is_cat) {
 418         var tree = dijit.byId("feedTree");
 419         var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 420
 421         if (nuf)
 422                 return tree.model.store.getValue(nuf, 'bare_id');
 423 }
 424
 425 function catchupCurrentFeed(mode) {
 426         catchupFeed(getActiveFeedId(), activeFeedIsCat(), mode);
 427 }
 428
 429 function catchupFeedInGroup(id) {
 430         var title = getFeedName(id);
 431
 432         var str = __("Mark all articles in %s as read?").replace("%s", title);
 433
 434         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 435
 436                 var rows = $$("#headlines-frame > div[id*=RROW][data-orig-feed-id='"+id+"']");
 437
 438                 if (rows.length > 0) {
 439
 440                         rows.each(function (row) {
 441                                 row.removeClassName("Unread");
 442
 443                                 if (row.getAttribute("data-article-id") != getActiveArticleId()) {
 444                                         new Effect.Fade(row, {duration: 0.5});
 445                                 }
 446
 447                         });
 448
 449                         var feedTitles = $$("#headlines-frame > div[class='cdmFeedTitle']");
 450
 451                         for (var i = 0; i < feedTitles.length; i++) {
 452                                 if (feedTitles[i].getAttribute("data-feed-id") == id) {
 453
 454                                         if (i < feedTitles.length - 1) {
 455                                                 new Effect.Fade(feedTitles[i], {duration: 0.5});
 456                                         }
 457
 458                                         break;
 459                                 }
 460                         }
 461
 462                         updateFloatingTitle(true);
 463                 }
 464
 465                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 466                                 id + "&is_cat=false";
 467
 468                 console.log(catchup_query);
 469
 470                 notify_progress("Loading, please wait...", true);
 471
 472                 new Ajax.Request("backend.php", {
 473                         parameters: catchup_query,
 474                         onComplete: function (transport) {
 475                                 handle_rpc_json(transport);
 476                         }
 477                 } );
 478
 479                 //return viewCurrentFeed('MarkAllReadGR:' + id);
 480         }
 481 }
 482
 483 function catchupFeed(feed, is_cat, mode) {
 484         if (is_cat == undefined) is_cat = false;
 485
 486         var str = false;
 487
 488         switch (mode) {
 489         case "1day":
 490                 str = __("Mark %w in %s older than 1 day as read?");
 491                 break;
 492         case "1week":
 493                 str = __("Mark %w in %s older than 1 week as read?");
 494                 break;
 495         case "2week":
 496                 str = __("Mark %w in %s older than 2 weeks as read?");
 497                 break;
 498         default:
 499                 str = __("Mark %w in %s as read?");
 500         }
 501
 502         var mark_what = last_search_query && last_search_query[0] ? __("search results") : __("all articles");
 503         var fn = getFeedName(feed, is_cat);
 504
 505         str = str.replace("%s", fn)
 506                 .replace("%w", mark_what);
 507
 508         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 509                 return;
 510         }
 511
 512         var catchup_query = {op: 'rpc', method: 'catchupFeed', feed_id: feed,
 513                 is_cat: is_cat, mode: mode, search_query: last_search_query[0],
 514                 search_lang: last_search_query[1]};
 515
 516         console.log(catchup_query);
 517
 518         notify_progress("Loading, please wait...", true);
 519
 520         new Ajax.Request("backend.php", {
 521                 parameters: catchup_query,
 522                 onComplete: function(transport) {
 523                                 handle_rpc_json(transport);
 524
 525                                 var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 526
 527                                 if (show_next_feed) {
 528                                         var nuf = getNextUnreadFeed(feed, is_cat);
 529
 530                                         if (nuf) {
 531                                                 viewfeed({feed: nuf, is_cat: is_cat});
 532                                         }
 533                                 } else {
 534                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 535                                                 viewCurrentFeed();
 536                                         }
 537                                 }
 538
 539                                 notify("");
 540                         } });
 541
 542 }
 543
 544 function decrementFeedCounter(feed, is_cat) {
 545         var ctr = getFeedUnread(feed, is_cat);
 546
 547         if (ctr > 0) {
 548                 setFeedUnread(feed, is_cat, ctr - 1);
 549                 global_unread = global_unread - 1;
 550                 updateTitle();
 551
 552                 if (!is_cat) {
 553                         var cat = parseInt(getFeedCategory(feed));
 554
 555                         if (!isNaN(cat)) {
 556                                 ctr = getFeedUnread(cat, true);
 557
 558                                 if (ctr > 0) {
 559                                         setFeedUnread(cat, true, ctr - 1);
 560                                 }
 561                         }
 562                 }
 563         }
 564
 565 }
 566
 567