js/feedlist.js

   1 var _infscroll_disable = 0;
   2 var _infscroll_request_sent = 0;
   3 var _search_query = false;
   4
   5 var counter_timeout_id = false;
   6
   7 var counters_last_request = 0;
   8
   9 function viewCategory(cat) {
  10         viewfeed(cat, '', true);
  11         return false;
  12 }
  13
  14 function loadMoreHeadlines() {
  15         try {
  16                 console.log("loadMoreHeadlines");
  17
  18                 var offset = 0;
  19
  20                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  21                 var num_unread = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  22                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  23
  24                 // TODO implement marked & published
  25
  26                 if (view_mode == "marked") {
  27                         console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  28                         offset = num_all;
  29                 } else if (view_mode == "published") {
  30                         console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  31                         offset = num_all;
  32                 } else if (view_mode == "unread") {
  33                         offset = num_unread;
  34                 } else if (view_mode == "adaptive") {
  35                         if (num_unread > 0)
  36                                 offset = num_unread;
  37                         else
  38                                 offset = num_all;
  39                 } else {
  40                         offset = num_all;
  41                 }
  42
  43                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
  44
  45         } catch (e) {
  46                 exception_error("viewNextFeedPage", e);
  47         }
  48 }
  49
  50
  51 function viewfeed(feed, method, is_cat, offset, background, infscroll_req) {
  52         try {
  53                 if (is_cat == undefined)
  54                         is_cat = false;
  55                 else
  56                         is_cat = !!is_cat;
  57
  58                 if (method == undefined) method = '';
  59                 if (offset == undefined) offset = 0;
  60                 if (background == undefined) background = false;
  61                 if (infscroll_req == undefined) infscroll_req = false;
  62
  63                 last_requested_article = 0;
  64
  65                 var cached_headlines = false;
  66
  67                 if (feed == getActiveFeedId()) {
  68                         cache_delete("feed:" + feed + ":" + is_cat);
  69                 } else {
  70                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  71
  72                         // switching to a different feed, we might as well catchup stuff visible
  73                         // in headlines buffer (if any)
  74                         // disabled for now because this behavior is considered confusing -fox
  75                         /* if (!background && isCdmMode() && getInitParam("cdm_auto_catchup") == 1 && parseInt(getActiveFeedId()) > 0) {
  76
  77                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
  78                                         function(child) {
  79                                                 var hf = $("headlines-frame");
  80
  81                                                 if (hf.scrollTop + hf.offsetHeight >=
  82                                                                 child.offsetTop + child.offsetHeight) {
  83
  84                                                         var id = child.id.replace("RROW-", "");
  85
  86                                                         if (catchup_id_batch.indexOf(id) == -1)
  87                                                                 catchup_id_batch.push(id);
  88
  89                                                 }
  90
  91                                                 if (catchup_id_batch.length > 0) {
  92                                                         window.clearTimeout(catchup_timeout_id);
  93
  94                                                         if (!_infscroll_request_sent) {
  95                                                                 catchup_timeout_id = window.setTimeout('catchupBatchedArticles()',
  96                                                                         2000);
  97                                                         }
  98                                                 }
  99
 100                                         });
 101                         } */
 102                 }
 103
 104                 if (offset == 0 && !background)
 105                         dijit.byId("content-tabs").selectChild(
 106                                 dijit.byId("content-tabs").getChildren()[0]);
 107
 108                 if (!background) {
 109                         if (getActiveFeedId() != feed || offset == 0) {
 110                                 active_post_id = 0;
 111                                 _infscroll_disable = 0;
 112                         }
 113
 114                         if (!offset && !method && cached_headlines && !background) {
 115                                 try {
 116                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
 117                                         return;
 118                                 } catch (e) {
 119                                         console.warn("render_local_headlines failed: " + e);
 120                                 }
 121                         }
 122
 123                         if (offset != 0 && !method) {
 124                                 var date = new Date();
 125                                 var timestamp = Math.round(date.getTime() / 1000);
 126
 127                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 128                                         //console.log("infscroll request in progress, aborting");
 129                                         return;
 130                                 }
 131
 132                                 _infscroll_request_sent = timestamp;
 133                         }
 134
 135                         hideAuxDlg();
 136                 }
 137
 138                 Form.enable("main_toolbar_form");
 139
 140                 var toolbar_query = Form.serialize("main_toolbar_form");
 141
 142                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
 143                         toolbar_query + "&m=" + param_escape(method);
 144
 145                 if (!background) {
 146                         if (_search_query) {
 147                                 force_nocache = true;
 148                                 query = query + "&" + _search_query;
 149                                 _search_query = false;
 150                         }
 151
 152                         if (offset != 0) {
 153                                 query = query + "&skip=" + offset;
 154
 155                                 // to prevent duplicate feed titles when showing grouped vfeeds
 156                                 if (vgroup_last_feed) {
 157                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 158                                 }
 159                         }
 160
 161                         Form.enable("main_toolbar_form");
 162
 163                         if (!offset)
 164                                 if (!is_cat) {
 165                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 166                                                 notify_progress("Loading, please wait...", true);
 167                                 } else {
 168                                         notify_progress("Loading, please wait...", true);
 169                                 }
 170                 }
 171
 172                 query += "&cat=" + is_cat;
 173                 query += "&include_children=" + dijit.byId("include_children").attr("checked");
 174
 175                 console.log(query);
 176
 177                 new Ajax.Request("backend.php", {
 178                         parameters: query,
 179                         onComplete: function(transport) {
 180                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 181                                 headlines_callback2(transport, offset, background, infscroll_req);
 182                         } });
 183
 184         } catch (e) {
 185                 exception_error("viewfeed", e);
 186         }
 187 }
 188
 189 function feedlist_init() {
 190         try {
 191                 console.log("in feedlist init");
 192
 193                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 194                 document.onkeydown = hotkey_handler;
 195                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 196
 197                  if (!getActiveFeedId()) {
 198                         setTimeout("viewfeed(-3)", 100);
 199                 }
 200
 201                 console.log("T:" +
 202                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 203
 204                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 205
 206                 setTimeout("timeout()", 5000);
 207                 setTimeout("precache_headlines_idle()", 3000);
 208
 209         } catch (e) {
 210                 exception_error("feedlist/init", e);
 211         }
 212 }
 213
 214 function request_counters_real() {
 215         try {
 216                 console.log("requesting counters...");
 217
 218                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 219
 220                 query = query + "&omode=flc";
 221
 222                 new Ajax.Request("backend.php", {
 223                         parameters: query,
 224                         onComplete: function(transport) {
 225                                 try {
 226                                         handle_rpc_json(transport);
 227                                 } catch (e) {
 228                                         exception_error("viewfeed/getcounters", e);
 229                                 }
 230                         } });
 231
 232         } catch (e) {
 233                 exception_error("request_counters_real", e);
 234         }
 235 }
 236
 237
 238 function request_counters() {
 239
 240         try {
 241
 242                 if (getInitParam("bw_limit") == "1") return;
 243
 244                 var date = new Date();
 245                 var timestamp = Math.round(date.getTime() / 1000);
 246
 247                 if (timestamp - counters_last_request > 5) {
 248                         console.log("scheduling request of counters...");
 249
 250                         window.clearTimeout(counter_timeout_id);
 251                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 252
 253                         counters_last_request = timestamp;
 254                 } else {
 255                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 256                 }
 257
 258         } catch (e) {
 259                 exception_error("request_counters", e);
 260         }
 261 }
 262
 263 function displayNewContentPrompt(id) {
 264         try {
 265
 266                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 267                         __("New articles available in this feed (click to show)") + "</a>";
 268
 269                 msg = msg.replace("%s", getFeedName(id));
 270
 271                 $('auxDlg').innerHTML = msg;
 272
 273                 new Effect.Appear('auxDlg', {duration : 0.5});
 274
 275         } catch (e) {
 276                 exception_error("displayNewContentPrompt", e);
 277         }
 278 }
 279
 280 function parse_counters(elems, scheduled_call) {
 281         try {
 282                 for (var l = 0; l < elems.length; l++) {
 283
 284                         var id = elems[l].id;
 285                         var kind = elems[l].kind;
 286                         var ctr = parseInt(elems[l].counter);
 287                         var error = elems[l].error;
 288                         var has_img = elems[l].has_img;
 289                         var updated = elems[l].updated;
 290                         var child_unread = parseInt(elems[l].child_counter);
 291
 292                         if (id == "global-unread") {
 293                                 global_unread = ctr;
 294                                 updateTitle();
 295                                 continue;
 296                         }
 297
 298                         if (id == "subscribed-feeds") {
 299                                 feeds_found = ctr;
 300                                 continue;
 301                         }
 302
 303                         // TODO: enable new content notification for categories
 304
 305                         if (!activeFeedIsCat() && id == getActiveFeedId()
 306                                         && ctr > getFeedUnread(id) && scheduled_call) {
 307                                 displayNewContentPrompt(id);
 308                         }
 309
 310                         if (getFeedUnread(id, (kind == "cat")) != ctr)
 311                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 312
 313                         setFeedUnread(id, (kind == "cat"), ctr);
 314
 315                         if (kind != "cat") {
 316                                 setFeedValue(id, false, 'error', error);
 317                                 setFeedValue(id, false, 'updated', updated);
 318
 319                                 if (id > 0) {
 320                                         if (has_img) {
 321                                                 setFeedIcon(id, false,
 322                                                         getInitParam("icons_url") + "/" + id + ".ico");
 323                                         } else {
 324                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 325                                         }
 326                                 }
 327                         } else {
 328                                 setCatParam(id, child_unread);
 329                         }
 330                 }
 331
 332                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 333
 334         } catch (e) {
 335                 exception_error("parse_counters", e);
 336         }
 337 }
 338
 339 function getFeedUnread(feed, is_cat) {
 340         try {
 341                 var tree = dijit.byId("feedTree");
 342
 343                 if (tree && tree.model)
 344                         return tree.model.getFeedUnread(feed, is_cat);
 345
 346         } catch (e) {
 347                 //
 348         }
 349
 350         return -1;
 351 }
 352
 353 function getFeedCategory(feed) {
 354         try {
 355                 var tree = dijit.byId("feedTree");
 356
 357                 if (tree && tree.model)
 358                         return tree.getFeedCategory(feed);
 359
 360         } catch (e) {
 361                 //
 362         }
 363
 364         return false;
 365 }
 366
 367 function hideOrShowFeeds(hide) {
 368         var tree = dijit.byId("feedTree");
 369
 370         if (tree)
 371                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 372 }
 373
 374 function getFeedName(feed, is_cat) {
 375         var tree = dijit.byId("feedTree");
 376
 377         if (tree && tree.model)
 378                 return tree.model.getFeedValue(feed, is_cat, 'name');
 379 }
 380
 381 function getFeedValue(feed, is_cat, key) {
 382         try {
 383                 var tree = dijit.byId("feedTree");
 384
 385                 if (tree && tree.model)
 386                         return tree.model.getFeedValue(feed, is_cat, key);
 387
 388         } catch (e) {
 389                 //
 390         }
 391         return '';
 392 }
 393
 394 function setFeedUnread(feed, is_cat, unread) {
 395         try {
 396                 var tree = dijit.byId("feedTree");
 397
 398                 if (tree && tree.model)
 399                         return tree.model.setFeedUnread(feed, is_cat, unread);
 400
 401         } catch (e) {
 402                 exception_error("setFeedUnread", e);
 403         }
 404 }
 405
 406 function setFeedValue(feed, is_cat, key, value) {
 407         try {
 408                 var tree = dijit.byId("feedTree");
 409
 410                 if (tree && tree.model)
 411                         return tree.model.setFeedValue(feed, is_cat, key, value);
 412
 413         } catch (e) {
 414                 //
 415         }
 416 }
 417
 418 function setCatParam(cat, value) {
 419         try {
 420                 var tree = dijit.byId("feedTree");
 421
 422                 if (tree && tree.model)
 423                         return tree.setCatParam(cat, value);
 424
 425         } catch (e) {
 426                 //
 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() {
 479         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 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                         return viewCurrentFeed('MarkAllReadGR:' + id);
 491                 }
 492
 493         } catch (e) {
 494                 exception_error("catchupFeedInGroup", e);
 495         }
 496 }
 497
 498 function catchupFeed(feed, is_cat) {
 499         try {
 500                 if (is_cat == undefined) is_cat = false;
 501
 502                 var str = __("Mark all articles in %s as read?");
 503                 var fn = getFeedName(feed, is_cat);
 504
 505                 str = str.replace("%s", fn);
 506
 507                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 508                         return;
 509                 }
 510
 511                 var max_id = 0;
 512
 513                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 514                         $$("#headlines-frame > div[id*=RROW]").each(
 515                                 function(child) {
 516                                         var id = parseInt(child.id.replace("RROW-", ""));
 517
 518                                         if (id > max_id) max_id = id;
 519                                 }
 520                         );
 521                 }
 522
 523                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 524                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 525
 526                 console.log(catchup_query);
 527
 528                 notify_progress("Loading, please wait...", true);
 529
 530                 new Ajax.Request("backend.php", {
 531                         parameters: catchup_query,
 532                         onComplete: function(transport) {
 533                                         handle_rpc_json(transport);
 534
 535                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 536
 537                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 538                                                         function(child) {
 539                                                                 child.removeClassName("Unread");
 540                                                         }
 541                                                 );
 542                                         }
 543
 544                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 545
 546                                         if (show_next_feed) {
 547                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 548
 549                                                 if (nuf) {
 550                                                         viewfeed(nuf, '', is_cat);
 551                                                 }
 552                                         }
 553
 554                                         notify("");
 555                                 } });
 556
 557         } catch (e) {
 558                 exception_error("catchupFeed", e);
 559         }
 560 }
 561
 562 function decrementFeedCounter(feed, is_cat) {
 563         try {
 564                 var ctr = getFeedUnread(feed, is_cat);
 565
 566                 if (ctr > 0) {
 567                         setFeedUnread(feed, is_cat, ctr - 1);
 568
 569                         if (!is_cat) {
 570                                 var cat = parseInt(getFeedCategory(feed));
 571
 572                                 if (!isNaN(cat)) {
 573                                         ctr = getFeedUnread(cat, true);
 574
 575                                         if (ctr > 0) {
 576                                                 setFeedUnread(cat, true, ctr - 1);
 577                                         }
 578                                 }
 579                         }
 580                 }
 581
 582                 cache_delete("feed:" + feed + ":" + is_cat);
 583
 584         } catch (e) {
 585                 exception_error("decrement_feed_counter", e);
 586         }
 587 }