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         request_counters(true);
 202         timeout();
 203
 204 }
 205
 206
 207 function request_counters(force) {
 208         var date = new Date();
 209         var timestamp = Math.round(date.getTime() / 1000);
 210
 211         if (force || timestamp - counters_last_request > 5) {
 212                 console.log("scheduling request of counters...");
 213
 214                 counters_last_request = timestamp;
 215
 216                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 217
 218                 if (!force)
 219                         query = query + "&last_article_id=" + getInitParam("last_article_id");
 220
 221                 console.log(query);
 222
 223                 new Ajax.Request("backend.php", {
 224                         parameters: query,
 225                         onComplete: function(transport) {
 226                                 handle_rpc_json(transport);
 227                         } });
 228
 229         } else {
 230                 console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 231         }
 232 }
 233
 234 // NOTE: this implementation is incomplete
 235 // for general objects but good enough for counters
 236 // http://adripofjavascript.com/blog/drips/object-equality-in-javascript.html
 237 function counter_is_equal(a, b) {
 238         // Create arrays of property names
 239         var aProps = Object.getOwnPropertyNames(a);
 240         var bProps = Object.getOwnPropertyNames(b);
 241
 242         // If number of properties is different,
 243         // objects are not equivalent
 244         if (aProps.length != bProps.length) {
 245                 return false;
 246         }
 247
 248         for (var i = 0; i < aProps.length; i++) {
 249                 var propName = aProps[i];
 250
 251                 // If values of same property are not equal,
 252                 // objects are not equivalent
 253                 if (a[propName] !== b[propName]) {
 254                         return false;
 255                 }
 256         }
 257
 258         // If we made it this far, objects
 259         // are considered equivalent
 260         return true;
 261 }
 262
 263
 264 function parse_counters(elems) {
 265         for (var l = 0; l < elems.length; l++) {
 266
 267                 if (_counters_prev[l] && counter_is_equal(elems[l], _counters_prev[l])) {
 268                         continue;
 269                 }
 270
 271                 var id = elems[l].id;
 272                 var kind = elems[l].kind;
 273                 var ctr = parseInt(elems[l].counter);
 274                 var error = elems[l].error;
 275                 var has_img = elems[l].has_img;
 276                 var updated = elems[l].updated;
 277                 var auxctr = parseInt(elems[l].auxcounter);
 278
 279                 if (id == "global-unread") {
 280                         global_unread = ctr;
 281                         updateTitle();
 282                         continue;
 283                 }
 284
 285                 if (id == "subscribed-feeds") {
 286                         /* feeds_found = ctr; */
 287                         continue;
 288                 }
 289
 290                 /*if (getFeedUnread(id, (kind == "cat")) != ctr ||
 291                                 (kind == "cat")) {
 292                 }*/
 293
 294                 setFeedUnread(id, (kind == "cat"), ctr);
 295                 setFeedValue(id, (kind == "cat"), 'auxcounter', auxctr);
 296
 297                 if (kind != "cat") {
 298                         setFeedValue(id, false, 'error', error);
 299                         setFeedValue(id, false, 'updated', updated);
 300
 301                         if (id > 0) {
 302                                 if (has_img) {
 303                                         setFeedIcon(id, false,
 304                                                 getInitParam("icons_url") + "/" + id + ".ico");
 305                                 } else {
 306                                         setFeedIcon(id, false, 'images/blank_icon.gif');
 307                                 }
 308                         }
 309                 }
 310         }
 311
 312         hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 313
 314         _counters_prev = elems;
 315 }
 316
 317 function getFeedUnread(feed, is_cat) {
 318         try {
 319                 var tree = dijit.byId("feedTree");
 320
 321                 if (tree && tree.model)
 322                         return tree.model.getFeedUnread(feed, is_cat);
 323
 324         } catch (e) {
 325                 //
 326         }
 327
 328         return -1;
 329 }
 330
 331 function getFeedCategory(feed) {
 332         try {
 333                 var tree = dijit.byId("feedTree");
 334
 335                 if (tree && tree.model)
 336                         return tree.getFeedCategory(feed);
 337
 338         } catch (e) {
 339                 //
 340         }
 341
 342         return false;
 343 }
 344
 345 function hideOrShowFeeds(hide) {
 346         var tree = dijit.byId("feedTree");
 347
 348         if (tree)
 349                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 350 }
 351
 352 function getFeedName(feed, is_cat) {
 353
 354         if (isNaN(feed)) return feed; // it's a tag
 355
 356         var tree = dijit.byId("feedTree");
 357
 358         if (tree && tree.model)
 359                 return tree.model.getFeedValue(feed, is_cat, 'name');
 360 }
 361
 362 function getFeedValue(feed, is_cat, key) {
 363         try {
 364                 var tree = dijit.byId("feedTree");
 365
 366                 if (tree && tree.model)
 367                         return tree.model.getFeedValue(feed, is_cat, key);
 368
 369         } catch (e) {
 370                 //
 371         }
 372         return '';
 373 }
 374
 375 function setFeedUnread(feed, is_cat, unread) {
 376         var tree = dijit.byId("feedTree");
 377
 378         if (tree && tree.model)
 379                 return tree.model.setFeedUnread(feed, is_cat, unread);
 380 }
 381
 382 function setFeedValue(feed, is_cat, key, value) {
 383         try {
 384                 var tree = dijit.byId("feedTree");
 385
 386                 if (tree && tree.model)
 387                         return tree.model.setFeedValue(feed, is_cat, key, value);
 388
 389         } catch (e) {
 390                 //
 391         }
 392 }
 393
 394 function selectFeed(feed, is_cat) {
 395         var tree = dijit.byId("feedTree");
 396
 397         if (tree) return tree.selectFeed(feed, is_cat);
 398 }
 399
 400 function setFeedIcon(feed, is_cat, src) {
 401         var tree = dijit.byId("feedTree");
 402
 403         if (tree) return tree.setFeedIcon(feed, is_cat, src);
 404 }
 405
 406 function setFeedExpandoIcon(feed, is_cat, src) {
 407         var tree = dijit.byId("feedTree");
 408
 409         if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 410
 411         return false;
 412 }
 413
 414 function getNextUnreadFeed(feed, is_cat) {
 415         var tree = dijit.byId("feedTree");
 416         var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 417
 418         if (nuf)
 419                 return tree.model.store.getValue(nuf, 'bare_id');
 420 }
 421
 422 function catchupCurrentFeed(mode) {
 423         catchupFeed(getActiveFeedId(), activeFeedIsCat(), mode);
 424 }
 425
 426 function catchupFeedInGroup(id) {
 427         var title = getFeedName(id);
 428
 429         var str = __("Mark all articles in %s as read?").replace("%s", title);
 430
 431         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 432
 433                 var rows = $$("#headlines-frame > div[id*=RROW][data-orig-feed-id='"+id+"']");
 434
 435                 if (rows.length > 0) {
 436
 437                         rows.each(function (row) {
 438                                 row.removeClassName("Unread");
 439
 440                                 if (row.getAttribute("data-article-id") != getActiveArticleId()) {
 441                                         new Effect.Fade(row, {duration: 0.5});
 442                                 }
 443
 444                         });
 445
 446                         var feedTitles = $$("#headlines-frame > div[class='cdmFeedTitle']");
 447
 448                         for (var i = 0; i < feedTitles.length; i++) {
 449                                 if (feedTitles[i].getAttribute("data-feed-id") == id) {
 450
 451                                         if (i < feedTitles.length - 1) {
 452                                                 new Effect.Fade(feedTitles[i], {duration: 0.5});
 453                                         }
 454
 455                                         break;
 456                                 }
 457                         }
 458
 459                         updateFloatingTitle(true);
 460                 }
 461
 462                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 463                                 id + "&is_cat=false";
 464
 465                 console.log(catchup_query);
 466
 467                 notify_progress("Loading, please wait...", true);
 468
 469                 new Ajax.Request("backend.php", {
 470                         parameters: catchup_query,
 471                         onComplete: function (transport) {
 472                                 handle_rpc_json(transport);
 473                         }
 474                 } );
 475
 476                 //return viewCurrentFeed('MarkAllReadGR:' + id);
 477         }
 478 }
 479
 480 function catchupFeed(feed, is_cat, mode) {
 481         if (is_cat == undefined) is_cat = false;
 482
 483         var str = false;
 484
 485         switch (mode) {
 486         case "1day":
 487                 str = __("Mark all articles in %s older than 1 day as read?");
 488                 break;
 489         case "1week":
 490                 str = __("Mark all articles in %s older than 1 week as read?");
 491                 break;
 492         case "2week":
 493                 str = __("Mark all articles in %s older than 2 weeks as read?");
 494                 break;
 495         default:
 496                 str = __("Mark all articles in %s as read?");
 497         }
 498
 499         var fn = getFeedName(feed, is_cat);
 500
 501         str = str.replace("%s", fn);
 502
 503         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 504                 return;
 505         }
 506
 507         var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 508                 feed + "&is_cat=" + is_cat + "&mode=" + mode;
 509
 510         console.log(catchup_query);
 511
 512         notify_progress("Loading, please wait...", true);
 513
 514         new Ajax.Request("backend.php", {
 515                 parameters: catchup_query,
 516                 onComplete: function(transport) {
 517                                 handle_rpc_json(transport);
 518
 519                                 var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 520
 521                                 if (show_next_feed) {
 522                                         var nuf = getNextUnreadFeed(feed, is_cat);
 523
 524                                         if (nuf) {
 525                                                 viewfeed({feed: nuf, is_cat: is_cat});
 526                                         }
 527                                 } else {
 528                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 529                                                 viewCurrentFeed();
 530                                         }
 531                                 }
 532
 533                                 notify("");
 534                         } });
 535
 536 }
 537
 538 function decrementFeedCounter(feed, is_cat) {
 539         var ctr = getFeedUnread(feed, is_cat);
 540
 541         if (ctr > 0) {
 542                 setFeedUnread(feed, is_cat, ctr - 1);
 543                 global_unread = global_unread - 1;
 544                 updateTitle();
 545
 546                 if (!is_cat) {
 547                         var cat = parseInt(getFeedCategory(feed));
 548
 549                         if (!isNaN(cat)) {
 550                                 ctr = getFeedUnread(cat, true);
 551
 552                                 if (ctr > 0) {
 553                                         setFeedUnread(cat, true, ctr - 1);
 554                                 }
 555                         }
 556                 }
 557         }
 558
 559 }
 560
 561