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, subop, is_cat, offset, background, infscrol_req) {
  52         try {
  53                 if (is_cat == undefined)
  54                         is_cat = false;
  55                 else
  56                         is_cat = !!is_cat;
  57
  58                 if (subop == undefined) subop = '';
  59                 if (offset == undefined) offset = 0;
  60                 if (background == undefined) background = false;
  61                 if (infscrol_req == undefined) infscrol_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                         if (!background && getInitParam("cdm_auto_catchup") == 1 && parseInt(getActiveFeedId()) > 0) {
  75
  76                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
  77                                         function(child) {
  78                                                 var hf = $("headlines-frame");
  79
  80                                                 if (hf.scrollTop + hf.offsetHeight >=
  81                                                                 child.offsetTop + child.offsetHeight) {
  82
  83                                                         var id = child.id.replace("RROW-", "");
  84
  85                                                         if (catchup_id_batch.indexOf(id) == -1)
  86                                                                 catchup_id_batch.push(id);
  87
  88                                                 }
  89
  90                                                 if (catchup_id_batch.length > 0) {
  91                                                         window.clearTimeout(catchup_timeout_id);
  92
  93                                                         if (!_infscroll_request_sent) {
  94                                                                 catchup_timeout_id = window.setTimeout('catchupBatchedArticles()',
  95                                                                         2000);
  96                                                         }
  97                                                 }
  98
  99                                         });
 100                         }
 101                 }
 102
 103                 if (offset == 0)
 104                         dijit.byId("content-tabs").selectChild(
 105                                 dijit.byId("content-tabs").getChildren()[0]);
 106
 107                 var force_nocache = false;
 108
 109                 if (!background) {
 110                         if (getActiveFeedId() != feed || offset == 0) {
 111                                 active_post_id = 0;
 112                                 _infscroll_disable = 0;
 113                         }
 114
 115                         if (!offset && !subop && cached_headlines && !background) {
 116                                 try {
 117                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
 118                                         return;
 119                                 } catch (e) {
 120                                         console.warn("render_local_headlines failed: " + e);
 121                                 }
 122                         }
 123
 124                         if (offset != 0 && !subop) {
 125                                 var date = new Date();
 126                                 var timestamp = Math.round(date.getTime() / 1000);
 127
 128                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
 129                                         //console.log("infscroll request in progress, aborting");
 130                                         return;
 131                                 }
 132
 133                                 _infscroll_request_sent = timestamp;
 134                         }
 135
 136                         hideAuxDlg();
 137                 }
 138
 139                 Form.enable("main_toolbar_form");
 140
 141                 var toolbar_query = Form.serialize("main_toolbar_form");
 142
 143                 var query = "?op=viewfeed&feed=" + feed + "&" +
 144                         toolbar_query + "&subop=" + param_escape(subop);
 145
 146                 if (!background) {
 147                         if (_search_query) {
 148                                 force_nocache = true;
 149                                 query = query + "&" + _search_query;
 150                                 _search_query = false;
 151                         }
 152
 153                         if (subop == "MarkAllRead") {
 154
 155                                 var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 156
 157                                 if (show_next_feed) {
 158                                         var nuf = getNextUnreadFeed(feed, is_cat);
 159
 160                                         if (nuf) {
 161                                                 var cached_nuf = cache_get("feed:" + nuf + ":false");
 162
 163                                                 if (cached_nuf) {
 164
 165                                                         render_local_headlines(nuf, false, JSON.parse(cached_nuf));
 166
 167                                                         var catchup_query = "?op=rpc&subop=catchupFeed&feed_id=" +
 168                                                                 feed + "&is_cat=" + is_cat;
 169
 170                                                         console.log(catchup_query);
 171
 172                                                         new Ajax.Request("backend.php", {
 173                                                                 parameters: catchup_query,
 174                                                                 onComplete: function(transport) {
 175                                                                         handle_rpc_json(transport);
 176                                                                 } });
 177
 178                                                         return;
 179                                                 } else {
 180                                                         query += "&nuf=" + param_escape(nuf);
 181                                                 }
 182                                         }
 183                                 }
 184                         }
 185
 186                         if (offset != 0) {
 187                                 query = query + "&skip=" + offset;
 188
 189                                 // to prevent duplicate feed titles when showing grouped vfeeds
 190                                 if (vgroup_last_feed) {
 191                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 192                                 }
 193                         }
 194
 195                         Form.enable("main_toolbar_form");
 196
 197                         if (!offset)
 198                                 if (!is_cat) {
 199                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 200                                                 notify_progress("Loading, please wait...", true);
 201                                 } else {
 202                                         notify_progress("Loading, please wait...", true);
 203                                 }
 204                 }
 205
 206                 query += "&cat=" + is_cat;
 207
 208                 console.log(query);
 209
 210                 new Ajax.Request("backend.php", {
 211                         parameters: query,
 212                         onComplete: function(transport) {
 213                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 214                                 headlines_callback2(transport, offset, background, infscrol_req);
 215                         } });
 216
 217         } catch (e) {
 218                 exception_error("viewfeed", e);
 219         }
 220 }
 221
 222 function feedlist_init() {
 223         try {
 224                 console.log("in feedlist init");
 225
 226                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 227                 document.onkeydown = hotkey_handler;
 228                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 229
 230                  if (!getActiveFeedId()) {
 231                         setTimeout("viewfeed(-3)", 100);
 232                 }
 233
 234                 console.log("T:" +
 235                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 236
 237                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 238
 239                 setTimeout("timeout()", 5000);
 240                 setTimeout("precache_headlines_idle()", 3000);
 241
 242         } catch (e) {
 243                 exception_error("feedlist/init", e);
 244         }
 245 }
 246
 247 function request_counters_real() {
 248         try {
 249                 console.log("requesting counters...");
 250
 251                 var query = "?op=rpc&subop=getAllCounters&seq=" + next_seq();
 252
 253                 query = query + "&omode=flc";
 254
 255                 new Ajax.Request("backend.php", {
 256                         parameters: query,
 257                         onComplete: function(transport) {
 258                                 try {
 259                                         handle_rpc_json(transport);
 260                                 } catch (e) {
 261                                         exception_error("viewfeed/getcounters", e);
 262                                 }
 263                         } });
 264
 265         } catch (e) {
 266                 exception_error("request_counters_real", e);
 267         }
 268 }
 269
 270
 271 function request_counters() {
 272
 273         try {
 274
 275                 if (getInitParam("bw_limit") == "1") return;
 276
 277                 var date = new Date();
 278                 var timestamp = Math.round(date.getTime() / 1000);
 279
 280                 if (timestamp - counters_last_request > 5) {
 281                         console.log("scheduling request of counters...");
 282
 283                         window.clearTimeout(counter_timeout_id);
 284                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 285
 286                         counters_last_request = timestamp;
 287                 } else {
 288                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 289                 }
 290
 291         } catch (e) {
 292                 exception_error("request_counters", e);
 293         }
 294 }
 295
 296 function displayNewContentPrompt(id) {
 297         try {
 298
 299                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 300                         __("New articles available in this feed (click to show)") + "</a>";
 301
 302                 msg = msg.replace("%s", getFeedName(id));
 303
 304                 $('auxDlg').innerHTML = msg;
 305
 306                 new Effect.Appear('auxDlg', {duration : 0.5});
 307
 308         } catch (e) {
 309                 exception_error("displayNewContentPrompt", e);
 310         }
 311 }
 312
 313 function parse_counters(elems, scheduled_call) {
 314         try {
 315
 316                 var feeds_found = 0;
 317
 318                 for (var l = 0; l < elems.length; l++) {
 319
 320                         var id = elems[l].id
 321                         var kind = elems[l].kind;
 322                         var ctr = parseInt(elems[l].counter)
 323                         var error = elems[l].error;
 324                         var has_img = elems[l].has_img;
 325                         var updated = elems[l].updated;
 326                         var title = elems[l].title;
 327
 328                         if (id == "global-unread") {
 329                                 global_unread = ctr;
 330                                 updateTitle();
 331                                 continue;
 332                         }
 333
 334                         if (id == "subscribed-feeds") {
 335                                 feeds_found = ctr;
 336                                 continue;
 337                         }
 338
 339                         var treeItem;
 340
 341                         // TODO: enable new content notification for categories
 342
 343                         if (!activeFeedIsCat() && id == getActiveFeedId()
 344                                         && ctr > getFeedUnread(id) && scheduled_call) {
 345                                 displayNewContentPrompt(id);
 346                         }
 347
 348                         if (getFeedUnread(id, (kind == "cat")) != ctr)
 349                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 350
 351                         setFeedUnread(id, (kind == "cat"), ctr);
 352
 353                         if (kind != "cat") {
 354                                 setFeedValue(id, false, 'error', error);
 355                                 setFeedValue(id, false, 'updated', updated);
 356
 357                                 if (id > 0) {
 358                                         if (has_img) {
 359                                                 setFeedIcon(id, false,
 360                                                         getInitParam("icons_url") + "/" + id + ".ico");
 361                                         } else {
 362                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 363                                         }
 364                                 }
 365                         }
 366                 }
 367
 368                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 369
 370         } catch (e) {
 371                 exception_error("parse_counters", e);
 372         }
 373 }
 374
 375 function getFeedUnread(feed, is_cat) {
 376         try {
 377                 var tree = dijit.byId("feedTree");
 378
 379                 if (tree && tree.model)
 380                         return tree.model.getFeedUnread(feed, is_cat);
 381
 382         } catch (e) {
 383                 //
 384         }
 385
 386         return -1;
 387 }
 388
 389 function resort_feedlist() {
 390         console.warn("resort_feedlist: function not implemented");
 391 }
 392
 393 function hideOrShowFeeds(hide) {
 394         var tree = dijit.byId("feedTree");
 395
 396         if (tree)
 397                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 398 }
 399
 400 function getFeedName(feed, is_cat) {
 401         var tree = dijit.byId("feedTree");
 402
 403         if (tree && tree.model)
 404                 return tree.model.getFeedValue(feed, is_cat, 'name');
 405 }
 406
 407 function getFeedValue(feed, is_cat, key) {
 408         try {
 409                 var tree = dijit.byId("feedTree");
 410
 411                 if (tree && tree.model)
 412                         return tree.model.getFeedValue(feed, is_cat, key);
 413
 414         } catch (e) {
 415                 //
 416         }
 417         return '';
 418 }
 419
 420 function setFeedUnread(feed, is_cat, unread) {
 421         try {
 422                 var tree = dijit.byId("feedTree");
 423
 424                 if (tree && tree.model)
 425                         return tree.model.setFeedUnread(feed, is_cat, unread);
 426
 427         } catch (e) {
 428                 exception_error("setFeedUnread", e);
 429         }
 430 }
 431
 432 function setFeedValue(feed, is_cat, key, value) {
 433         try {
 434                 var tree = dijit.byId("feedTree");
 435
 436                 if (tree && tree.model)
 437                         return tree.model.setFeedValue(feed, is_cat, key, value);
 438
 439         } catch (e) {
 440                 //
 441         }
 442 }
 443
 444 function selectFeed(feed, is_cat) {
 445         try {
 446                 var tree = dijit.byId("feedTree");
 447
 448                 if (tree) return tree.selectFeed(feed, is_cat);
 449
 450         } catch (e) {
 451                 exception_error("selectFeed", e);
 452         }
 453 }
 454
 455 function setFeedIcon(feed, is_cat, src) {
 456         try {
 457                 var tree = dijit.byId("feedTree");
 458
 459                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 460
 461         } catch (e) {
 462                 exception_error("setFeedIcon", e);
 463         }
 464 }
 465
 466 function setFeedExpandoIcon(feed, is_cat, src) {
 467         try {
 468                 var tree = dijit.byId("feedTree");
 469
 470                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 471
 472         } catch (e) {
 473                 exception_error("setFeedIcon", e);
 474         }
 475         return false;
 476 }
 477
 478 function getNextUnreadFeed(feed, is_cat) {
 479         try {
 480                 var tree = dijit.byId("feedTree");
 481                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 482
 483                 if (nuf)
 484                         return tree.model.store.getValue(nuf, 'bare_id');
 485
 486         } catch (e) {
 487                 exception_error("getNextUnreadFeed", e);
 488         }
 489 }
 490
 491 function catchupFeed(feed, is_cat) {
 492         try {
 493                 var str = __("Mark all articles in %s as read?");
 494                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
 495
 496                 str = str.replace("%s", fn);
 497
 498                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 499                         return;
 500                 }
 501
 502                 var catchup_query = "?op=rpc&subop=catchupFeed&feed_id=" +
 503                         feed + "&is_cat=" + is_cat;
 504
 505                 notify_progress("Loading, please wait...", true);
 506
 507                 new Ajax.Request("backend.php", {
 508                         parameters: catchup_query,
 509                         onComplete: function(transport) {
 510                                         handle_rpc_json(transport);
 511                                         notify("");
 512                                 } });
 513
 514         } catch (e) {
 515                 exception_error("catchupFeed", e);
 516         }
 517 }