js/feedlist.js

   1 var _infscroll_disable = 0;
   2 var _infscroll_request_sent = 0;
   3 var _search_query = false;
   4 var _viewfeed_last = 0;
   5
   6 var counter_timeout_id = false;
   7
   8 var counters_last_request = 0;
   9
  10 function viewCategory(cat) {
  11         viewfeed(cat, '', true);
  12         return false;
  13 }
  14
  15 function loadMoreHeadlines() {
  16         try {
  17                 console.log("loadMoreHeadlines");
  18
  19                 var offset = 0;
  20
  21                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  22                 var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  23                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  24                 var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  25
  26                 // TODO implement marked & published
  27
  28                 if (view_mode == "marked") {
  29                         console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  30                         offset = num_all;
  31                 } else if (view_mode == "published") {
  32                         console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  33                         offset = num_all;
  34                 } else if (view_mode == "unread") {
  35                         offset = unread_in_buffer;
  36                 } else if (_search_query) {
  37                         offset = num_all;
  38                 } else if (view_mode == "adaptive") {
  39                         if (num_unread > 0)
  40                                 offset = unread_in_buffer;
  41                         else
  42                                 offset = num_all;
  43                 } else {
  44                         offset = num_all;
  45                 }
  46
  47                 console.log("offset: " + offset);
  48
  49                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
  50
  51         } catch (e) {
  52                 exception_error("viewNextFeedPage", e);
  53         }
  54 }
  55
  56
  57 function viewfeed(feed, method, is_cat, offset, background, infscroll_req) {
  58         try {
  59                 if (is_cat == undefined)
  60                         is_cat = false;
  61                 else
  62                         is_cat = !!is_cat;
  63
  64                 if (method == undefined) method = '';
  65                 if (offset == undefined) offset = 0;
  66                 if (background == undefined) background = false;
  67                 if (infscroll_req == undefined) infscroll_req = false;
  68
  69                 last_requested_article = 0;
  70
  71                 var cached_headlines = false;
  72
  73                 if (feed == getActiveFeedId() && activeFeedIsCat() == is_cat) {
  74                         cache_delete("feed:" + feed + ":" + is_cat);
  75                 } else {
  76                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  77
  78                         if (_search_query) _search_query = false;
  79
  80                         // switching to a different feed, we might as well catchup stuff visible
  81                         // in headlines buffer (if any)
  82                         // disabled for now because this behavior is considered confusing -fox
  83                         /* if (!background && isCdmMode() && getInitParam("cdm_auto_catchup") == 1 && parseInt(getActiveFeedId()) > 0) {
  84
  85                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
  86                                         function(child) {
  87                                                 var hf = $("headlines-frame");
  88
  89                                                 if (hf.scrollTop + hf.offsetHeight >=
  90                                                                 child.offsetTop + child.offsetHeight) {
  91
  92                                                         var id = child.id.replace("RROW-", "");
  93
  94                                                         if (catchup_id_batch.indexOf(id) == -1)
  95                                                                 catchup_id_batch.push(id);
  96
  97                                                 }
  98
  99                                                 if (catchup_id_batch.length > 0) {
 100                                                         window.clearTimeout(catchup_timeout_id);
 101
 102                                                         if (!_infscroll_request_sent) {
 103                                                                 catchup_timeout_id = window.setTimeout('catchupBatchedArticles()',
 104                                                                         2000);
 105                                                         }
 106                                                 }
 107
 108                                         });
 109                         } */
 110                 }
 111
 112                 if (offset == 0 && !background)
 113                         dijit.byId("content-tabs").selectChild(
 114                                 dijit.byId("content-tabs").getChildren()[0]);
 115
 116                 if (!background) {
 117                         _viewfeed_last = get_timestamp();
 118
 119                         if (getActiveFeedId() != feed || offset == 0) {
 120                                 active_post_id = 0;
 121                                 _infscroll_disable = 0;
 122                         }
 123
 124                         if (!offset && !method && cached_headlines && !background) {
 125                                 try {
 126                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
 127                                         return;
 128                                 } catch (e) {
 129                                         console.warn("render_local_headlines failed: " + e);
 130                                 }
 131                         }
 132
 133                         if (offset != 0 && !method) {
 134                                 var timestamp = get_timestamp();
 135
 136                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 137                                         //console.log("infscroll request in progress, aborting");
 138                                         return;
 139                                 }
 140
 141                                 _infscroll_request_sent = timestamp;
 142                         }
 143
 144                         hideAuxDlg();
 145                 }
 146
 147                 Form.enable("main_toolbar_form");
 148
 149                 var toolbar_query = Form.serialize("main_toolbar_form");
 150
 151                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
 152                         toolbar_query + "&m=" + param_escape(method);
 153
 154                 if (!background) {
 155                         if (_search_query) {
 156                                 force_nocache = true;
 157                                 query = query + "&" + _search_query;
 158                                 //_search_query = false;
 159                         }
 160
 161                         if (offset != 0) {
 162                                 query = query + "&skip=" + offset;
 163
 164                                 // to prevent duplicate feed titles when showing grouped vfeeds
 165                                 if (vgroup_last_feed) {
 166                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 167                                 }
 168                         }
 169
 170                         Form.enable("main_toolbar_form");
 171
 172                         if (!offset)
 173                                 if (!is_cat) {
 174                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 175                                                 notify_progress("Loading, please wait...", true);
 176                                 } else {
 177                                         notify_progress("Loading, please wait...", true);
 178                                 }
 179                 }
 180
 181                 query += "&cat=" + is_cat;
 182
 183                 console.log(query);
 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                         } });
 191
 192         } catch (e) {
 193                 exception_error("viewfeed", e);
 194         }
 195 }
 196
 197 function feedlist_init() {
 198         try {
 199                 console.log("in feedlist init");
 200
 201                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 202                 document.onkeydown = hotkey_handler;
 203                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 204
 205                  if (!getActiveFeedId()) {
 206                         setTimeout("viewfeed(-3)", 100);
 207                 }
 208
 209                 console.log("T:" +
 210                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 211
 212                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 213
 214                 setTimeout("timeout()", 5000);
 215                 setTimeout("precache_headlines_idle()", 15000);
 216
 217         } catch (e) {
 218                 exception_error("feedlist/init", e);
 219         }
 220 }
 221
 222 function request_counters_real() {
 223         try {
 224                 console.log("requesting counters...");
 225
 226                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 227
 228                 query = query + "&omode=flc";
 229
 230                 new Ajax.Request("backend.php", {
 231                         parameters: query,
 232                         onComplete: function(transport) {
 233                                 try {
 234                                         handle_rpc_json(transport);
 235                                 } catch (e) {
 236                                         exception_error("viewfeed/getcounters", e);
 237                                 }
 238                         } });
 239
 240         } catch (e) {
 241                 exception_error("request_counters_real", e);
 242         }
 243 }
 244
 245
 246 function request_counters() {
 247
 248         try {
 249
 250                 //if (getInitParam("bw_limit") == "1") return;
 251
 252                 var date = new Date();
 253                 var timestamp = Math.round(date.getTime() / 1000);
 254
 255                 if (timestamp - counters_last_request > 5) {
 256                         console.log("scheduling request of counters...");
 257
 258                         window.clearTimeout(counter_timeout_id);
 259                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 260
 261                         counters_last_request = timestamp;
 262                 } else {
 263                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 264                 }
 265
 266         } catch (e) {
 267                 exception_error("request_counters", e);
 268         }
 269 }
 270
 271 function displayNewContentPrompt(id) {
 272         try {
 273
 274                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 275                         __("New articles available in this feed (click to show)") + "</a>";
 276
 277                 msg = msg.replace("%s", getFeedName(id));
 278
 279                 $('auxDlg').innerHTML = msg;
 280
 281                 new Effect.Appear('auxDlg', {duration : 0.5});
 282
 283         } catch (e) {
 284                 exception_error("displayNewContentPrompt", e);
 285         }
 286 }
 287
 288 function parse_counters(elems, scheduled_call) {
 289         try {
 290                 for (var l = 0; l < elems.length; l++) {
 291
 292                         var id = elems[l].id;
 293                         var kind = elems[l].kind;
 294                         var ctr = parseInt(elems[l].counter);
 295                         var error = elems[l].error;
 296                         var has_img = elems[l].has_img;
 297                         var updated = elems[l].updated;
 298
 299                         if (id == "global-unread") {
 300                                 global_unread = ctr;
 301                                 updateTitle();
 302                                 continue;
 303                         }
 304
 305                         if (id == "subscribed-feeds") {
 306                                 feeds_found = ctr;
 307                                 continue;
 308                         }
 309
 310                         // TODO: enable new content notification for categories
 311
 312                         if (!activeFeedIsCat() && id == getActiveFeedId()
 313                                         && ctr > getFeedUnread(id) && scheduled_call) {
 314                                 displayNewContentPrompt(id);
 315                         }
 316
 317                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 318                                         (kind == "cat")) {
 319
 320                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 321                         }
 322
 323                         setFeedUnread(id, (kind == "cat"), ctr);
 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         } catch (e) {
 343                 exception_error("parse_counters", e);
 344         }
 345 }
 346
 347 function getFeedUnread(feed, is_cat) {
 348         try {
 349                 var tree = dijit.byId("feedTree");
 350
 351                 if (tree && tree.model)
 352                         return tree.model.getFeedUnread(feed, is_cat);
 353
 354         } catch (e) {
 355                 //
 356         }
 357
 358         return -1;
 359 }
 360
 361 function getFeedCategory(feed) {
 362         try {
 363                 var tree = dijit.byId("feedTree");
 364
 365                 if (tree && tree.model)
 366                         return tree.getFeedCategory(feed);
 367
 368         } catch (e) {
 369                 //
 370         }
 371
 372         return false;
 373 }
 374
 375 function hideOrShowFeeds(hide) {
 376         var tree = dijit.byId("feedTree");
 377
 378         if (tree)
 379                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 380 }
 381
 382 function getFeedName(feed, is_cat) {
 383         var tree = dijit.byId("feedTree");
 384
 385         if (tree && tree.model)
 386                 return tree.model.getFeedValue(feed, is_cat, 'name');
 387 }
 388
 389 function getFeedValue(feed, is_cat, key) {
 390         try {
 391                 var tree = dijit.byId("feedTree");
 392
 393                 if (tree && tree.model)
 394                         return tree.model.getFeedValue(feed, is_cat, key);
 395
 396         } catch (e) {
 397                 //
 398         }
 399         return '';
 400 }
 401
 402 function setFeedUnread(feed, is_cat, unread) {
 403         try {
 404                 var tree = dijit.byId("feedTree");
 405
 406                 if (tree && tree.model)
 407                         return tree.model.setFeedUnread(feed, is_cat, unread);
 408
 409         } catch (e) {
 410                 exception_error("setFeedUnread", e);
 411         }
 412 }
 413
 414 function setFeedValue(feed, is_cat, key, value) {
 415         try {
 416                 var tree = dijit.byId("feedTree");
 417
 418                 if (tree && tree.model)
 419                         return tree.model.setFeedValue(feed, is_cat, key, value);
 420
 421         } catch (e) {
 422                 //
 423         }
 424 }
 425
 426 function selectFeed(feed, is_cat) {
 427         try {
 428                 var tree = dijit.byId("feedTree");
 429
 430                 if (tree) return tree.selectFeed(feed, is_cat);
 431
 432         } catch (e) {
 433                 exception_error("selectFeed", e);
 434         }
 435 }
 436
 437 function setFeedIcon(feed, is_cat, src) {
 438         try {
 439                 var tree = dijit.byId("feedTree");
 440
 441                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 442
 443         } catch (e) {
 444                 exception_error("setFeedIcon", e);
 445         }
 446 }
 447
 448 function setFeedExpandoIcon(feed, is_cat, src) {
 449         try {
 450                 var tree = dijit.byId("feedTree");
 451
 452                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 453
 454         } catch (e) {
 455                 exception_error("setFeedIcon", e);
 456         }
 457         return false;
 458 }
 459
 460 function getNextUnreadFeed(feed, is_cat) {
 461         try {
 462                 var tree = dijit.byId("feedTree");
 463                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 464
 465                 if (nuf)
 466                         return tree.model.store.getValue(nuf, 'bare_id');
 467
 468         } catch (e) {
 469                 exception_error("getNextUnreadFeed", e);
 470         }
 471 }
 472
 473 function catchupCurrentFeed() {
 474         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 475 }
 476
 477 function catchupFeedInGroup(id) {
 478         try {
 479
 480                 var title = getFeedName(id);
 481
 482                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 483
 484                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 485                         return viewCurrentFeed('MarkAllReadGR:' + id);
 486                 }
 487
 488         } catch (e) {
 489                 exception_error("catchupFeedInGroup", e);
 490         }
 491 }
 492
 493 function catchupFeed(feed, is_cat) {
 494         try {
 495                 if (is_cat == undefined) is_cat = false;
 496
 497                 var str = __("Mark all articles in %s as read?");
 498                 var fn = getFeedName(feed, is_cat);
 499
 500                 str = str.replace("%s", fn);
 501
 502                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 503                         return;
 504                 }
 505
 506                 var max_id = 0;
 507
 508                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 509                         $$("#headlines-frame > div[id*=RROW]").each(
 510                                 function(child) {
 511                                         var id = parseInt(child.id.replace("RROW-", ""));
 512
 513                                         if (id > max_id) max_id = id;
 514                                 }
 515                         );
 516                 }
 517
 518                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 519                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 520
 521                 console.log(catchup_query);
 522
 523                 notify_progress("Loading, please wait...", true);
 524
 525                 new Ajax.Request("backend.php", {
 526                         parameters: catchup_query,
 527                         onComplete: function(transport) {
 528                                         handle_rpc_json(transport);
 529
 530                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 531
 532                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 533                                                         function(child) {
 534                                                                 child.removeClassName("Unread");
 535                                                         }
 536                                                 );
 537                                         }
 538
 539                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 540
 541                                         if (show_next_feed) {
 542                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 543
 544                                                 if (nuf) {
 545                                                         viewfeed(nuf, '', is_cat);
 546                                                 }
 547                                         }
 548
 549                                         notify("");
 550                                 } });
 551
 552         } catch (e) {
 553                 exception_error("catchupFeed", e);
 554         }
 555 }
 556
 557 function decrementFeedCounter(feed, is_cat) {
 558         try {
 559                 var ctr = getFeedUnread(feed, is_cat);
 560
 561                 if (ctr > 0) {
 562                         setFeedUnread(feed, is_cat, ctr - 1);
 563
 564                         if (!is_cat) {
 565                                 var cat = parseInt(getFeedCategory(feed));
 566
 567                                 if (!isNaN(cat)) {
 568                                         ctr = getFeedUnread(cat, true);
 569
 570                                         if (ctr > 0) {
 571                                                 setFeedUnread(cat, true, ctr - 1);
 572                                         }
 573                                 }
 574                         }
 575                 }
 576
 577                 cache_delete("feed:" + feed + ":" + is_cat);
 578
 579         } catch (e) {
 580                 exception_error("decrement_feed_counter", e);
 581         }
 582 }