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 viewCategory(cat) {
  12         viewfeed({feed: cat, is_cat: true});
  13         return false;
  14 }*/
  15
  16 function loadMoreHeadlines() {
  17         try {
  18                 console.log("loadMoreHeadlines");
  19
  20                 var offset = 0;
  21
  22                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  23                 var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  24                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  25                 var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  26
  27                 // TODO implement marked & published
  28
  29                 if (view_mode == "marked") {
  30                         console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  31                         offset = num_all;
  32                 } else if (view_mode == "published") {
  33                         console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  34                         offset = num_all;
  35                 } else if (view_mode == "unread") {
  36                         offset = unread_in_buffer;
  37                 } else if (_search_query) {
  38                         offset = num_all;
  39                 } else if (view_mode == "adaptive" && !(getActiveFeedId() == -1 && !activeFeedIsCat())) {
  40                         // ^ starred feed shows both unread & read articles in adaptive mode
  41                         offset = num_unread > 0 ? unread_in_buffer : num_all;
  42                 } else {
  43                         offset = num_all;
  44                 }
  45
  46                 console.log("offset: " + offset);
  47
  48                 viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat(), offset: offset, infscroll_req: true});
  49
  50         } catch (e) {
  51                 exception_error("viewNextFeedPage", e);
  52         }
  53 }
  54
  55 function cleanup_memory(root) {
  56         try {
  57                 var dijits = dojo.query("[widgetid]", dijit.byId(root).domNode).map(dijit.byNode);
  58
  59                 dijits.each(function (d) {
  60                         dojo.destroy(d.domNode);
  61                 });
  62
  63                 $$("#" + root + " *").each(function (i) {
  64                         i.parentNode ? i.parentNode.removeChild(i) : true;
  65                 });
  66         } catch (e) {
  67                 console.log("cleanup_memory: exception");
  68                 console.log(e);
  69         }
  70 }
  71
  72 function viewfeed(params) {
  73         try {
  74                 var feed = params.feed;
  75                 var is_cat = params.is_cat;
  76                 var offset = params.offset;
  77                 var background = params.background;
  78                 var infscroll_req = params.infscroll_req;
  79                 var can_wait = params.can_wait;
  80                 var viewfeed_debug = params.viewfeed_debug;
  81                 var method = params.method;
  82
  83                 if (is_cat == undefined)
  84                         is_cat = false;
  85                 else
  86                         is_cat = !!is_cat;
  87
  88                 if (offset == undefined) offset = 0;
  89                 if (background == undefined) background = false;
  90                 if (infscroll_req == undefined) infscroll_req = false;
  91
  92                 last_requested_article = 0;
  93
  94                 if (feed != getActiveFeedId() || activeFeedIsCat() != is_cat) {
  95                         if (!background && _search_query) _search_query = false;
  96                 }
  97
  98                 if (!background) {
  99                         _viewfeed_last = get_timestamp();
 100
 101                         if (getActiveFeedId() != feed || !infscroll_req) {
 102                                 setActiveArticleId(0);
 103                                 _infscroll_disable = 0;
 104
 105                                 cleanup_memory("headlines-frame");
 106                                 _headlines_scroll_offset = 0;
 107                         }
 108
 109                         if (infscroll_req) {
 110                                 var timestamp = get_timestamp();
 111
 112                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 113                                         //console.log("infscroll request in progress, aborting");
 114                                         return;
 115                                 }
 116
 117                                 _infscroll_request_sent = timestamp;
 118                         }
 119                 }
 120
 121                 Form.enable("main_toolbar_form");
 122
 123                 var toolbar_query = Form.serialize("main_toolbar_form");
 124
 125                 var query = "?op=feeds&method=view&feed=" + param_escape(feed) + "&" +
 126                         toolbar_query;
 127
 128                 if (method) query += "&m=" + param_escape(method);
 129
 130                 if (offset > 0) {
 131                         if (current_first_id) {
 132                                 query = query + "&fid=" + param_escape(current_first_id);
 133                         }
 134                 }
 135
 136                 if (!background) {
 137                         if (_search_query) {
 138                                 force_nocache = true;
 139                                 query = query + "&" + _search_query;
 140                                 //_search_query = false;
 141                         }
 142
 143                         if (offset != 0) {
 144                                 query = query + "&skip=" + offset;
 145
 146                                 // to prevent duplicate feed titles when showing grouped vfeeds
 147                                 if (vgroup_last_feed) {
 148                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 149                                 }
 150                         } else {
 151                                 if (!is_cat && feed == getActiveFeedId() && !params.method) {
 152                                         query = query + "&m=ForceUpdate";
 153                                 }
 154                         }
 155
 156                         Form.enable("main_toolbar_form");
 157
 158                         if (!setFeedExpandoIcon(feed, is_cat,
 159                                 (is_cat) ? 'images/indicator_tiny.gif' : 'images/indicator_white.gif'))
 160                                         notify_progress("Loading, please wait...", true);
 161                 }
 162
 163                 query += "&cat=" + is_cat;
 164
 165                 console.log(query);
 166
 167                 if (can_wait && _viewfeed_timeout) {
 168                         setFeedExpandoIcon(getActiveFeedId(), activeFeedIsCat(), 'images/blank_icon.gif');
 169                         clearTimeout(_viewfeed_timeout);
 170                 }
 171
 172                 setActiveFeedId(feed, is_cat);
 173
 174                 if (viewfeed_debug) {
 175                         window.open("backend.php" + query + "&debug=1&csrf_token=" + getInitParam("csrf_token"));
 176                 }
 177
 178                 timeout_ms = can_wait ? 250 : 0;
 179                 _viewfeed_timeout = setTimeout(function() {
 180
 181                         new Ajax.Request("backend.php", {
 182                                 parameters: query,
 183                                 onComplete: function(transport) {
 184                                         setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 185                                         headlines_callback2(transport, offset, background, infscroll_req);
 186                                         PluginHost.run(PluginHost.HOOK_FEED_LOADED, [feed, is_cat]);
 187                                 } });
 188                 }, timeout_ms); // Wait 250ms
 189
 190         } catch (e) {
 191                 exception_error("viewfeed", e);
 192         }
 193 }
 194
 195 function feedlist_init() {
 196         try {
 197                 console.log("in feedlist init");
 198
 199                 loading_set_progress(50);
 200
 201                 document.onkeydown = hotkey_handler;
 202                 setTimeout(hotkey_prefix_timeout, 5*1000);
 203
 204                 if (!getActiveFeedId()) {
 205                         viewfeed({feed: -3});
 206                 } else {
 207                         viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat()});
 208                 }
 209
 210                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 211
 212                 request_counters(true);
 213                 timeout();
 214
 215         } catch (e) {
 216                 exception_error("feedlist/init", e);
 217         }
 218 }
 219
 220
 221 function request_counters(force) {
 222         try {
 223                 var date = new Date();
 224                 var timestamp = Math.round(date.getTime() / 1000);
 225
 226                 if (force || timestamp - counters_last_request > 5) {
 227                         console.log("scheduling request of counters...");
 228
 229                         counters_last_request = timestamp;
 230
 231                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 232
 233                         if (!force)
 234                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 235
 236                         console.log(query);
 237
 238                         new Ajax.Request("backend.php", {
 239                                 parameters: query,
 240                                 onComplete: function(transport) {
 241                                         try {
 242                                                 handle_rpc_json(transport);
 243                                         } catch (e) {
 244                                                 exception_error("request_counters", e);
 245                                         }
 246                                 } });
 247
 248                 } else {
 249                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 250                 }
 251
 252         } catch (e) {
 253                 exception_error("request_counters", e);
 254         }
 255 }
 256
 257 // NOTE: this implementation is incomplete
 258 // for general objects but good enough for counters
 259 // http://adripofjavascript.com/blog/drips/object-equality-in-javascript.html
 260 function counter_is_equal(a, b) {
 261         // Create arrays of property names
 262         var aProps = Object.getOwnPropertyNames(a);
 263         var bProps = Object.getOwnPropertyNames(b);
 264
 265         // If number of properties is different,
 266         // objects are not equivalent
 267         if (aProps.length != bProps.length) {
 268                 return false;
 269         }
 270
 271         for (var i = 0; i < aProps.length; i++) {
 272                 var propName = aProps[i];
 273
 274                 // If values of same property are not equal,
 275                 // objects are not equivalent
 276                 if (a[propName] !== b[propName]) {
 277                         return false;
 278                 }
 279         }
 280
 281         // If we made it this far, objects
 282         // are considered equivalent
 283         return true;
 284 }
 285
 286
 287 function parse_counters(elems) {
 288         try {
 289                 for (var l = 0; l < elems.length; l++) {
 290
 291                         if (_counters_prev[l] && counter_is_equal(elems[l], _counters_prev[l])) {
 292                                 continue;
 293                         }
 294
 295                         var id = elems[l].id;
 296                         var kind = elems[l].kind;
 297                         var ctr = parseInt(elems[l].counter);
 298                         var error = elems[l].error;
 299                         var has_img = elems[l].has_img;
 300                         var updated = elems[l].updated;
 301                         var auxctr = parseInt(elems[l].auxcounter);
 302
 303                         if (id == "global-unread") {
 304                                 global_unread = ctr;
 305                                 updateTitle();
 306                                 continue;
 307                         }
 308
 309                         if (id == "subscribed-feeds") {
 310                                 feeds_found = ctr;
 311                                 continue;
 312                         }
 313
 314                         /*if (getFeedUnread(id, (kind == "cat")) != ctr ||
 315                                         (kind == "cat")) {
 316                         }*/
 317
 318                         setFeedUnread(id, (kind == "cat"), ctr);
 319                         setFeedValue(id, (kind == "cat"), 'auxcounter', auxctr);
 320
 321                         if (kind != "cat") {
 322                                 setFeedValue(id, false, 'error', error);
 323                                 setFeedValue(id, false, 'updated', updated);
 324
 325                                 if (id > 0) {
 326                                         if (has_img) {
 327                                                 setFeedIcon(id, false,
 328                                                         getInitParam("icons_url") + "/" + id + ".ico");
 329                                         } else {
 330                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 331                                         }
 332                                 }
 333                         }
 334                 }
 335
 336                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 337
 338                 _counters_prev = elems;
 339
 340         } catch (e) {
 341                 exception_error("parse_counters", e);
 342         }
 343 }
 344
 345 function getFeedUnread(feed, is_cat) {
 346         try {
 347                 var tree = dijit.byId("feedTree");
 348
 349                 if (tree && tree.model)
 350                         return tree.model.getFeedUnread(feed, is_cat);
 351
 352         } catch (e) {
 353                 //
 354         }
 355
 356         return -1;
 357 }
 358
 359 function getFeedCategory(feed) {
 360         try {
 361                 var tree = dijit.byId("feedTree");
 362
 363                 if (tree && tree.model)
 364                         return tree.getFeedCategory(feed);
 365
 366         } catch (e) {
 367                 //
 368         }
 369
 370         return false;
 371 }
 372
 373 function hideOrShowFeeds(hide) {
 374         var tree = dijit.byId("feedTree");
 375
 376         if (tree)
 377                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 378 }
 379
 380 function getFeedName(feed, is_cat) {
 381
 382         if (isNaN(feed)) return feed; // it's a tag
 383
 384         var tree = dijit.byId("feedTree");
 385
 386         if (tree && tree.model)
 387                 return tree.model.getFeedValue(feed, is_cat, 'name');
 388 }
 389
 390 function getFeedValue(feed, is_cat, key) {
 391         try {
 392                 var tree = dijit.byId("feedTree");
 393
 394                 if (tree && tree.model)
 395                         return tree.model.getFeedValue(feed, is_cat, key);
 396
 397         } catch (e) {
 398                 //
 399         }
 400         return '';
 401 }
 402
 403 function setFeedUnread(feed, is_cat, unread) {
 404         try {
 405                 var tree = dijit.byId("feedTree");
 406
 407                 if (tree && tree.model)
 408                         return tree.model.setFeedUnread(feed, is_cat, unread);
 409
 410         } catch (e) {
 411                 exception_error("setFeedUnread", e);
 412         }
 413 }
 414
 415 function setFeedValue(feed, is_cat, key, value) {
 416         try {
 417                 var tree = dijit.byId("feedTree");
 418
 419                 if (tree && tree.model)
 420                         return tree.model.setFeedValue(feed, is_cat, key, value);
 421
 422         } catch (e) {
 423                 //
 424         }
 425 }
 426
 427 function selectFeed(feed, is_cat) {
 428         try {
 429                 var tree = dijit.byId("feedTree");
 430
 431                 if (tree) return tree.selectFeed(feed, is_cat);
 432
 433         } catch (e) {
 434                 exception_error("selectFeed", e);
 435         }
 436 }
 437
 438 function setFeedIcon(feed, is_cat, src) {
 439         try {
 440                 var tree = dijit.byId("feedTree");
 441
 442                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 443
 444         } catch (e) {
 445                 exception_error("setFeedIcon", e);
 446         }
 447 }
 448
 449 function setFeedExpandoIcon(feed, is_cat, src) {
 450         try {
 451                 var tree = dijit.byId("feedTree");
 452
 453                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 454
 455         } catch (e) {
 456                 exception_error("setFeedIcon", e);
 457         }
 458         return false;
 459 }
 460
 461 function getNextUnreadFeed(feed, is_cat) {
 462         try {
 463                 var tree = dijit.byId("feedTree");
 464                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 465
 466                 if (nuf)
 467                         return tree.model.store.getValue(nuf, 'bare_id');
 468
 469         } catch (e) {
 470                 exception_error("getNextUnreadFeed", e);
 471         }
 472 }
 473
 474 function catchupCurrentFeed(mode) {
 475         catchupFeed(getActiveFeedId(), activeFeedIsCat(), mode);
 476 }
 477
 478 function catchupFeedInGroup(id) {
 479         try {
 480
 481                 var title = getFeedName(id);
 482
 483                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 484
 485                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 486
 487                         var rows = $$("#headlines-frame > div[id*=RROW][data-orig-feed-id='"+id+"']");
 488
 489                         if (rows.length > 0) {
 490
 491                                 rows.each(function (row) {
 492                                         row.removeClassName("Unread");
 493
 494                                         if (row.getAttribute("data-article-id") != getActiveArticleId()) {
 495                                                 new Effect.Fade(row, {duration: 0.5});
 496                                         }
 497
 498                                 });
 499
 500                                 var feedTitles = $$("#headlines-frame > div[class='cdmFeedTitle']");
 501
 502                                 for (var i = 0; i < feedTitles.length; i++) {
 503                                         if (feedTitles[i].getAttribute("data-feed-id") == id) {
 504
 505                                                 if (i < feedTitles.length - 1) {
 506                                                         new Effect.Fade(feedTitles[i], {duration: 0.5});
 507                                                 }
 508
 509                                                 break;
 510                                         }
 511                                 }
 512
 513                                 updateFloatingTitle(true);
 514                         }
 515
 516                         var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 517                                         id + "&is_cat=false";
 518
 519                         console.log(catchup_query);
 520
 521                         notify_progress("Loading, please wait...", true);
 522
 523                         new Ajax.Request("backend.php", {
 524                                 parameters: catchup_query,
 525                                 onComplete: function (transport) {
 526                                         handle_rpc_json(transport);
 527                                 }
 528                         } );
 529
 530                         //return viewCurrentFeed('MarkAllReadGR:' + id);
 531                 }
 532
 533         } catch (e) {
 534                 exception_error("catchupFeedInGroup", e);
 535         }
 536 }
 537
 538 function catchupFeed(feed, is_cat, mode) {
 539         try {
 540                 if (is_cat == undefined) is_cat = false;
 541
 542                 var str = false;
 543
 544                 switch (mode) {
 545                 case "1day":
 546                         str = __("Mark all articles in %s older than 1 day as read?");
 547                         break;
 548                 case "1week":
 549                         str = __("Mark all articles in %s older than 1 week as read?");
 550                         break;
 551                 case "2week":
 552                         str = __("Mark all articles in %s older than 2 weeks as read?");
 553                         break;
 554                 default:
 555                         str = __("Mark all articles in %s as read?");
 556                 }
 557
 558                 var fn = getFeedName(feed, is_cat);
 559
 560                 str = str.replace("%s", fn);
 561
 562                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 563                         return;
 564                 }
 565
 566                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 567                         feed + "&is_cat=" + is_cat + "&mode=" + mode;
 568
 569                 console.log(catchup_query);
 570
 571                 notify_progress("Loading, please wait...", true);
 572
 573                 new Ajax.Request("backend.php", {
 574                         parameters: catchup_query,
 575                         onComplete: function(transport) {
 576                                         handle_rpc_json(transport);
 577
 578                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 579
 580                                         if (show_next_feed) {
 581                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 582
 583                                                 if (nuf) {
 584                                                         viewfeed({feed: nuf, is_cat: is_cat});
 585                                                 }
 586                                         } else {
 587                                                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 588                                                         viewCurrentFeed();
 589                                                 }
 590                                         }
 591
 592                                         notify("");
 593                                 } });
 594
 595         } catch (e) {
 596                 exception_error("catchupFeed", e);
 597         }
 598 }
 599
 600 function decrementFeedCounter(feed, is_cat) {
 601         try {
 602                 var ctr = getFeedUnread(feed, is_cat);
 603
 604                 if (ctr > 0) {
 605                         setFeedUnread(feed, is_cat, ctr - 1);
 606                         global_unread = global_unread - 1;
 607                         updateTitle();
 608
 609                         if (!is_cat) {
 610                                 var cat = parseInt(getFeedCategory(feed));
 611
 612                                 if (!isNaN(cat)) {
 613                                         ctr = getFeedUnread(cat, true);
 614
 615                                         if (ctr > 0) {
 616                                                 setFeedUnread(cat, true, ctr - 1);
 617                                         }
 618                                 }
 619                         }
 620                 }
 621
 622         } catch (e) {
 623                 exception_error("decrement_feed_counter", e);
 624         }
 625 }
 626
 627