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 resetCounterCache() {
  17         _counters_prev = [];
  18 }
  19
  20 function loadMoreHeadlines() {
  21         try {
  22                 console.log("loadMoreHeadlines");
  23
  24                 var offset = 0;
  25
  26                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  27                 var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  28                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  29                 var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  30
  31                 // TODO implement marked & published
  32
  33                 if (view_mode == "marked") {
  34                         console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  35                         offset = num_all;
  36                 } else if (view_mode == "published") {
  37                         console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  38                         offset = num_all;
  39                 } else if (view_mode == "unread") {
  40                         offset = unread_in_buffer;
  41                 } else if (_search_query) {
  42                         offset = num_all;
  43                 } else if (view_mode == "adaptive" && !(getActiveFeedId() == -1 && !activeFeedIsCat())) {
  44                         // ^ starred feed shows both unread & read articles in adaptive mode
  45                         offset = num_unread > 0 ? unread_in_buffer : num_all;
  46                 } else {
  47                         offset = num_all;
  48                 }
  49
  50                 console.log("offset: " + offset);
  51
  52                 viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat(), offset: offset, infscroll_req: true});
  53
  54         } catch (e) {
  55                 exception_error("viewNextFeedPage", e);
  56         }
  57 }
  58
  59 function cleanup_memory(root) {
  60         try {
  61                 var dijits = dojo.query("[widgetid]", dijit.byId(root).domNode).map(dijit.byNode);
  62
  63                 dijits.each(function (d) {
  64                         dojo.destroy(d.domNode);
  65                 });
  66
  67                 $$("#" + root + " *").each(function (i) {
  68                         i.parentNode ? i.parentNode.removeChild(i) : true;
  69                 });
  70         } catch (e) {
  71                 console.log("cleanup_memory: exception");
  72                 console.log(e);
  73         }
  74 }
  75
  76 function viewfeed(params) {
  77         try {
  78                 var feed = params.feed;
  79                 var is_cat = params.is_cat;
  80                 var offset = params.offset;
  81                 var background = params.background;
  82                 var infscroll_req = params.infscroll_req;
  83                 var can_wait = params.can_wait;
  84                 var viewfeed_debug = params.viewfeed_debug;
  85                 var method = params.method;
  86
  87                 if (is_cat == undefined)
  88                         is_cat = false;
  89                 else
  90                         is_cat = !!is_cat;
  91
  92                 if (offset == undefined) offset = 0;
  93                 if (background == undefined) background = false;
  94                 if (infscroll_req == undefined) infscroll_req = false;
  95
  96                 last_requested_article = 0;
  97
  98                 if (feed != getActiveFeedId() || activeFeedIsCat() != is_cat) {
  99                         if (!background && _search_query) _search_query = false;
 100                 }
 101
 102                 if (!background) {
 103                         _viewfeed_last = get_timestamp();
 104
 105                         if (getActiveFeedId() != feed || !infscroll_req) {
 106                                 setActiveArticleId(0);
 107                                 _infscroll_disable = 0;
 108
 109                                 cleanup_memory("headlines-frame");
 110                                 _headlines_scroll_offset = 0;
 111                         }
 112
 113                         if (infscroll_req) {
 114                                 var timestamp = get_timestamp();
 115
 116                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 117                                         //console.log("infscroll request in progress, aborting");
 118                                         return;
 119                                 }
 120
 121                                 _infscroll_request_sent = timestamp;
 122                         }
 123                 }
 124
 125                 Form.enable("main_toolbar_form");
 126
 127                 var toolbar_query = Form.serialize("main_toolbar_form");
 128
 129                 var query = "?op=feeds&method=view&feed=" + param_escape(feed) + "&" +
 130                         toolbar_query;
 131
 132                 if (method) query += "&m=" + param_escape(method);
 133
 134                 if (offset > 0) {
 135                         if (current_first_id) {
 136                                 query = query + "&fid=" + param_escape(current_first_id);
 137                         }
 138                 }
 139
 140                 if (!background) {
 141                         if (_search_query) {
 142                                 force_nocache = true;
 143                                 query = query + "&" + _search_query;
 144                                 //_search_query = false;
 145                         }
 146
 147                         if (offset != 0) {
 148                                 query = query + "&skip=" + offset;
 149
 150                                 // to prevent duplicate feed titles when showing grouped vfeeds
 151                                 if (vgroup_last_feed) {
 152                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 153                                 }
 154                         } else {
 155                                 if (!is_cat && feed == getActiveFeedId() && !params.method) {
 156                                         query = query + "&m=ForceUpdate";
 157                                 }
 158                         }
 159
 160                         Form.enable("main_toolbar_form");
 161
 162                         if (!setFeedExpandoIcon(feed, is_cat,
 163                                 (is_cat) ? 'images/indicator_tiny.gif' : 'images/indicator_white.gif'))
 164                                         notify_progress("Loading, please wait...", true);
 165                 }
 166
 167                 query += "&cat=" + is_cat;
 168
 169                 console.log(query);
 170
 171                 if (can_wait && _viewfeed_timeout) {
 172                         setFeedExpandoIcon(getActiveFeedId(), activeFeedIsCat(), 'images/blank_icon.gif');
 173                         clearTimeout(_viewfeed_timeout);
 174                 }
 175
 176                 setActiveFeedId(feed, is_cat);
 177
 178                 if (viewfeed_debug) {
 179                         window.open("backend.php" + query + "&debug=1&csrf_token=" + getInitParam("csrf_token"));
 180                 }
 181
 182                 timeout_ms = can_wait ? 250 : 0;
 183                 _viewfeed_timeout = setTimeout(function() {
 184
 185                         new Ajax.Request("backend.php", {
 186                                 parameters: query,
 187                                 onComplete: function(transport) {
 188                                         setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 189                                         headlines_callback2(transport, offset, background, infscroll_req);
 190                                         PluginHost.run(PluginHost.HOOK_FEED_LOADED, [feed, is_cat]);
 191                                 } });
 192                 }, timeout_ms); // Wait 250ms
 193
 194         } catch (e) {
 195                 exception_error("viewfeed", e);
 196         }
 197 }
 198
 199 function feedlist_init() {
 200         try {
 201                 console.log("in feedlist init");
 202
 203                 loading_set_progress(50);
 204
 205                 document.onkeydown = hotkey_handler;
 206                 setTimeout(hotkey_prefix_timeout, 5*1000);
 207
 208                 if (!getActiveFeedId()) {
 209                         viewfeed({feed: -3});
 210                 } else {
 211                         viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat()});
 212                 }
 213
 214                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 215
 216                 request_counters(true);
 217                 timeout();
 218
 219         } catch (e) {
 220                 exception_error("feedlist/init", e);
 221         }
 222 }
 223
 224
 225 function request_counters(force) {
 226         try {
 227                 var date = new Date();
 228                 var timestamp = Math.round(date.getTime() / 1000);
 229
 230                 if (force || timestamp - counters_last_request > 5) {
 231                         console.log("scheduling request of counters...");
 232
 233                         counters_last_request = timestamp;
 234
 235                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 236
 237                         if (!force)
 238                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 239
 240                         console.log(query);
 241
 242                         new Ajax.Request("backend.php", {
 243                                 parameters: query,
 244                                 onComplete: function(transport) {
 245                                         try {
 246                                                 handle_rpc_json(transport);
 247                                         } catch (e) {
 248                                                 exception_error("request_counters", e);
 249                                         }
 250                                 } });
 251
 252                 } else {
 253                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 254                 }
 255
 256         } catch (e) {
 257                 exception_error("request_counters", e);
 258         }
 259 }
 260
 261 // NOTE: this implementation is incomplete
 262 // for general objects but good enough for counters
 263 // http://adripofjavascript.com/blog/drips/object-equality-in-javascript.html
 264 function counter_is_equal(a, b) {
 265         // Create arrays of property names
 266         var aProps = Object.getOwnPropertyNames(a);
 267         var bProps = Object.getOwnPropertyNames(b);
 268
 269         // If number of properties is different,
 270         // objects are not equivalent
 271         if (aProps.length != bProps.length) {
 272                 return false;
 273         }
 274
 275         for (var i = 0; i < aProps.length; i++) {
 276                 var propName = aProps[i];
 277
 278                 // If values of same property are not equal,
 279                 // objects are not equivalent
 280                 if (a[propName] !== b[propName]) {
 281                         return false;
 282                 }
 283         }
 284
 285         // If we made it this far, objects
 286         // are considered equivalent
 287         return true;
 288 }
 289
 290
 291 function parse_counters(elems) {
 292         try {
 293                 for (var l = 0; l < elems.length; l++) {
 294
 295                         if (_counters_prev[l] && counter_is_equal(elems[l], _counters_prev[l])) {
 296                                 continue;
 297                         }
 298
 299                         var id = elems[l].id;
 300                         var kind = elems[l].kind;
 301                         var ctr = parseInt(elems[l].counter);
 302                         var error = elems[l].error;
 303                         var has_img = elems[l].has_img;
 304                         var updated = elems[l].updated;
 305                         var auxctr = parseInt(elems[l].auxcounter);
 306
 307                         if (id == "global-unread") {
 308                                 global_unread = ctr;
 309                                 updateTitle();
 310                                 continue;
 311                         }
 312
 313                         if (id == "subscribed-feeds") {
 314                                 /* feeds_found = ctr; */
 315                                 continue;
 316                         }
 317
 318                         /*if (getFeedUnread(id, (kind == "cat")) != ctr ||
 319                                         (kind == "cat")) {
 320                         }*/
 321
 322                         setFeedUnread(id, (kind == "cat"), ctr);
 323                         setFeedValue(id, (kind == "cat"), 'auxcounter', auxctr);
 324
 325                         if (kind != "cat") {
 326                                 setFeedValue(id, false, 'error', error);
 327                                 setFeedValue(id, false, 'updated', updated);
 328
 329                                 if (id > 0) {
 330                                         if (has_img) {
 331                                                 setFeedIcon(id, false,
 332                                                         getInitParam("icons_url") + "/" + id + ".ico");
 333                                         } else {
 334                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 335                                         }
 336                                 }
 337                         }
 338                 }
 339
 340                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 341
 342                 _counters_prev = elems;
 343
 344         } catch (e) {
 345                 exception_error("parse_counters", e);
 346         }
 347 }
 348
 349 function getFeedUnread(feed, is_cat) {
 350         try {
 351                 var tree = dijit.byId("feedTree");
 352
 353                 if (tree && tree.model)
 354                         return tree.model.getFeedUnread(feed, is_cat);
 355
 356         } catch (e) {
 357                 //
 358         }
 359
 360         return -1;
 361 }
 362
 363 function getFeedCategory(feed) {
 364         try {
 365                 var tree = dijit.byId("feedTree");
 366
 367                 if (tree && tree.model)
 368                         return tree.getFeedCategory(feed);
 369
 370         } catch (e) {
 371                 //
 372         }
 373
 374         return false;
 375 }
 376
 377 function hideOrShowFeeds(hide) {
 378         var tree = dijit.byId("feedTree");
 379
 380         if (tree)
 381                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 382 }
 383
 384 function getFeedName(feed, is_cat) {
 385
 386         if (isNaN(feed)) return feed; // it's a tag
 387
 388         var tree = dijit.byId("feedTree");
 389
 390         if (tree && tree.model)
 391                 return tree.model.getFeedValue(feed, is_cat, 'name');
 392 }
 393
 394 function getFeedValue(feed, is_cat, key) {
 395         try {
 396                 var tree = dijit.byId("feedTree");
 397
 398                 if (tree && tree.model)
 399                         return tree.model.getFeedValue(feed, is_cat, key);
 400
 401         } catch (e) {
 402                 //
 403         }
 404         return '';
 405 }
 406
 407 function setFeedUnread(feed, is_cat, unread) {
 408         try {
 409                 var tree = dijit.byId("feedTree");
 410
 411                 if (tree && tree.model)
 412                         return tree.model.setFeedUnread(feed, is_cat, unread);
 413
 414         } catch (e) {
 415                 exception_error("setFeedUnread", e);
 416         }
 417 }
 418
 419 function setFeedValue(feed, is_cat, key, value) {
 420         try {
 421                 var tree = dijit.byId("feedTree");
 422
 423                 if (tree && tree.model)
 424                         return tree.model.setFeedValue(feed, is_cat, key, value);
 425
 426         } catch (e) {
 427                 //
 428         }
 429 }
 430
 431 function selectFeed(feed, is_cat) {
 432         try {
 433                 var tree = dijit.byId("feedTree");
 434
 435                 if (tree) return tree.selectFeed(feed, is_cat);
 436
 437         } catch (e) {
 438                 exception_error("selectFeed", e);
 439         }
 440 }
 441
 442 function setFeedIcon(feed, is_cat, src) {
 443         try {
 444                 var tree = dijit.byId("feedTree");
 445
 446                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 447
 448         } catch (e) {
 449                 exception_error("setFeedIcon", e);
 450         }
 451 }
 452
 453 function setFeedExpandoIcon(feed, is_cat, src) {
 454         try {
 455                 var tree = dijit.byId("feedTree");
 456
 457                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 458
 459         } catch (e) {
 460                 exception_error("setFeedIcon", e);
 461         }
 462         return false;
 463 }
 464
 465 function getNextUnreadFeed(feed, is_cat) {
 466         try {
 467                 var tree = dijit.byId("feedTree");
 468                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 469
 470                 if (nuf)
 471                         return tree.model.store.getValue(nuf, 'bare_id');
 472
 473         } catch (e) {
 474                 exception_error("getNextUnreadFeed", e);
 475         }
 476 }
 477
 478 function catchupCurrentFeed(mode) {
 479         catchupFeed(getActiveFeedId(), activeFeedIsCat(), mode);
 480 }
 481
 482 function catchupFeedInGroup(id) {
 483         try {
 484
 485                 var title = getFeedName(id);
 486
 487                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 488
 489                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 490
 491                         var rows = $$("#headlines-frame > div[id*=RROW][data-orig-feed-id='"+id+"']");
 492
 493                         if (rows.length > 0) {
 494
 495                                 rows.each(function (row) {
 496                                         row.removeClassName("Unread");
 497
 498                                         if (row.getAttribute("data-article-id") != getActiveArticleId()) {
 499                                                 new Effect.Fade(row, {duration: 0.5});
 500                                         }
 501
 502                                 });
 503
 504                                 var feedTitles = $$("#headlines-frame > div[class='cdmFeedTitle']");
 505
 506                                 for (var i = 0; i < feedTitles.length; i++) {
 507                                         if (feedTitles[i].getAttribute("data-feed-id") == id) {
 508
 509                                                 if (i < feedTitles.length - 1) {
 510                                                         new Effect.Fade(feedTitles[i], {duration: 0.5});
 511                                                 }
 512
 513                                                 break;
 514                                         }
 515                                 }
 516
 517                                 updateFloatingTitle(true);
 518                         }
 519
 520                         var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 521                                         id + "&is_cat=false";
 522
 523                         console.log(catchup_query);
 524
 525                         notify_progress("Loading, please wait...", true);
 526
 527                         new Ajax.Request("backend.php", {
 528                                 parameters: catchup_query,
 529                                 onComplete: function (transport) {
 530                                         handle_rpc_json(transport);
 531                                 }
 532                         } );
 533
 534                         //return viewCurrentFeed('MarkAllReadGR:' + id);
 535                 }
 536
 537         } catch (e) {
 538                 exception_error("catchupFeedInGroup", e);
 539         }
 540 }
 541
 542 function catchupFeed(feed, is_cat, mode) {
 543         try {
 544                 if (is_cat == undefined) is_cat = false;
 545
 546                 var str = false;
 547
 548                 switch (mode) {
 549                 case "1day":
 550                         str = __("Mark all articles in %s older than 1 day as read?");
 551                         break;
 552                 case "1week":
 553                         str = __("Mark all articles in %s older than 1 week as read?");
 554                         break;
 555                 case "2week":
 556                         str = __("Mark all articles in %s older than 2 weeks as read?");
 557                         break;
 558                 default:
 559                         str = __("Mark all articles in %s as read?");
 560                 }
 561
 562                 var fn = getFeedName(feed, is_cat);
 563
 564                 str = str.replace("%s", fn);
 565
 566                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 567                         return;
 568                 }
 569
 570                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 571                         feed + "&is_cat=" + is_cat + "&mode=" + mode;
 572
 573                 console.log(catchup_query);
 574
 575                 notify_progress("Loading, please wait...", true);
 576
 577                 new Ajax.Request("backend.php", {
 578                         parameters: catchup_query,
 579                         onComplete: function(transport) {
 580                                         handle_rpc_json(transport);
 581
 582                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 583
 584                                         if (show_next_feed) {
 585                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 586
 587                                                 if (nuf) {
 588                                                         viewfeed({feed: nuf, is_cat: is_cat});
 589                                                 }
 590                                         } else {
 591                                                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 592                                                         viewCurrentFeed();
 593                                                 }
 594                                         }
 595
 596                                         notify("");
 597                                 } });
 598
 599         } catch (e) {
 600                 exception_error("catchupFeed", e);
 601         }
 602 }
 603
 604 function decrementFeedCounter(feed, is_cat) {
 605         try {
 606                 var ctr = getFeedUnread(feed, is_cat);
 607
 608                 if (ctr > 0) {
 609                         setFeedUnread(feed, is_cat, ctr - 1);
 610                         global_unread = global_unread - 1;
 611                         updateTitle();
 612
 613                         if (!is_cat) {
 614                                 var cat = parseInt(getFeedCategory(feed));
 615
 616                                 if (!isNaN(cat)) {
 617                                         ctr = getFeedUnread(cat, true);
 618
 619                                         if (ctr > 0) {
 620                                                 setFeedUnread(cat, true, ctr - 1);
 621                                         }
 622                                 }
 623                         }
 624                 }
 625
 626         } catch (e) {
 627                 exception_error("decrement_feed_counter", e);
 628         }
 629 }
 630
 631