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 counters_last_request = 0;
   7
   8 function viewCategory(cat) {
   9         viewfeed(cat, '', true);
  10         return false;
  11 }
  12
  13 function loadMoreHeadlines() {
  14         try {
  15                 console.log("loadMoreHeadlines");
  16
  17                 var offset = 0;
  18
  19                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  20                 var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  21                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  22                 var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
  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 = unread_in_buffer;
  34                 } else if (_search_query) {
  35                         offset = num_all;
  36                 } else if (view_mode == "adaptive") {
  37                         if (num_unread > 0)
  38                                 offset = unread_in_buffer;
  39                         else
  40                                 offset = num_all;
  41                 } else {
  42                         offset = num_all;
  43                 }
  44
  45                 console.log("offset: " + offset);
  46
  47                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
  48
  49         } catch (e) {
  50                 exception_error("viewNextFeedPage", e);
  51         }
  52 }
  53
  54
  55 function viewfeed(feed, method, is_cat, offset, background, infscroll_req) {
  56         try {
  57                 if (is_cat == undefined)
  58                         is_cat = false;
  59                 else
  60                         is_cat = !!is_cat;
  61
  62                 if (method == undefined) method = '';
  63                 if (offset == undefined) offset = 0;
  64                 if (background == undefined) background = false;
  65                 if (infscroll_req == undefined) infscroll_req = false;
  66
  67                 last_requested_article = 0;
  68
  69                 if (feed != getActiveFeedId() || activeFeedIsCat() != is_cat) {
  70                         if (!background && _search_query) _search_query = false;
  71                 }
  72
  73                 if (!background) {
  74                         _viewfeed_last = get_timestamp();
  75
  76                         if (getActiveFeedId() != feed || offset == 0) {
  77                                 setActiveArticleId(0);
  78                                 _infscroll_disable = 0;
  79                         }
  80
  81                         if (offset != 0 && !method) {
  82                                 var timestamp = get_timestamp();
  83
  84                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
  85                                         //console.log("infscroll request in progress, aborting");
  86                                         return;
  87                                 }
  88
  89                                 _infscroll_request_sent = timestamp;
  90                         }
  91
  92                         hideAuxDlg();
  93                 }
  94
  95                 Form.enable("main_toolbar_form");
  96
  97                 var toolbar_query = Form.serialize("main_toolbar_form");
  98
  99                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
 100                         toolbar_query;
 101
 102                 if (method) {
 103                         query = query + "&m=" + param_escape(method);
 104                 }
 105
 106                 if (!background) {
 107                         if (_search_query) {
 108                                 force_nocache = true;
 109                                 query = query + "&" + _search_query;
 110                                 //_search_query = false;
 111                         }
 112
 113                         if (offset != 0) {
 114                                 query = query + "&skip=" + offset;
 115
 116                                 // to prevent duplicate feed titles when showing grouped vfeeds
 117                                 if (vgroup_last_feed) {
 118                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 119                                 }
 120                         } else {
 121                                 if (!method && !is_cat && feed == getActiveFeedId()) {
 122                                         query = query + "&m=ForceUpdate";
 123                                 }
 124                         }
 125
 126                         Form.enable("main_toolbar_form");
 127
 128                         if (!offset)
 129                                 if (!is_cat) {
 130                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 131                                                 notify_progress("Loading, please wait...", true);
 132                                 } else {
 133                                         notify_progress("Loading, please wait...", true);
 134                                 }
 135                 }
 136
 137                 query += "&cat=" + is_cat;
 138
 139                 console.log(query);
 140
 141                 new Ajax.Request("backend.php", {
 142                         parameters: query,
 143                         onComplete: function(transport) {
 144                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 145                                 headlines_callback2(transport, offset, background, infscroll_req);
 146                         } });
 147
 148         } catch (e) {
 149                 exception_error("viewfeed", e);
 150         }
 151 }
 152
 153 function feedlist_init() {
 154         try {
 155                 console.log("in feedlist init");
 156
 157                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 158                 document.onkeydown = hotkey_handler;
 159                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 160
 161                 if (!getActiveFeedId()) {
 162                         viewfeed(-3);
 163                 } else {
 164                         viewfeed(getActiveFeedId(), '', activeFeedIsCat());
 165                 }
 166
 167                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 168
 169                 request_counters(true);
 170                 timeout();
 171
 172         } catch (e) {
 173                 exception_error("feedlist/init", e);
 174         }
 175 }
 176
 177
 178 function request_counters(force) {
 179         try {
 180                 var date = new Date();
 181                 var timestamp = Math.round(date.getTime() / 1000);
 182
 183                 if (force || timestamp - counters_last_request > 5) {
 184                         console.log("scheduling request of counters...");
 185
 186                         counters_last_request = timestamp;
 187
 188                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 189
 190                         if (!force)
 191                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 192
 193                         console.log(query);
 194
 195                         new Ajax.Request("backend.php", {
 196                                 parameters: query,
 197                                 onComplete: function(transport) {
 198                                         try {
 199                                                 handle_rpc_json(transport);
 200                                         } catch (e) {
 201                                                 exception_error("request_counters", e);
 202                                         }
 203                                 } });
 204
 205                 } else {
 206                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 207                 }
 208
 209         } catch (e) {
 210                 exception_error("request_counters", e);
 211         }
 212 }
 213
 214 function displayNewContentPrompt(id) {
 215         try {
 216
 217                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 218                         __("New articles available in this feed (click to show)") + "</a>";
 219
 220                 msg = msg.replace("%s", getFeedName(id));
 221
 222                 $('auxDlg').innerHTML = msg;
 223
 224                 new Effect.Appear('auxDlg', {duration : 0.5});
 225
 226         } catch (e) {
 227                 exception_error("displayNewContentPrompt", e);
 228         }
 229 }
 230
 231 function parse_counters(elems, scheduled_call) {
 232         try {
 233                 for (var l = 0; l < elems.length; l++) {
 234
 235                         var id = elems[l].id;
 236                         var kind = elems[l].kind;
 237                         var ctr = parseInt(elems[l].counter);
 238                         var error = elems[l].error;
 239                         var has_img = elems[l].has_img;
 240                         var updated = elems[l].updated;
 241
 242                         if (id == "global-unread") {
 243                                 global_unread = ctr;
 244                                 updateTitle();
 245                                 continue;
 246                         }
 247
 248                         if (id == "subscribed-feeds") {
 249                                 feeds_found = ctr;
 250                                 continue;
 251                         }
 252
 253                         if (id == getActiveFeedId() && ctr > getFeedUnread(id) && scheduled_call) {
 254                                 displayNewContentPrompt(id);
 255                         }
 256
 257                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 258                                         (kind == "cat")) {
 259                         }
 260
 261                         setFeedUnread(id, (kind == "cat"), ctr);
 262
 263                         if (kind != "cat") {
 264                                 setFeedValue(id, false, 'error', error);
 265                                 setFeedValue(id, false, 'updated', updated);
 266
 267                                 if (id > 0) {
 268                                         if (has_img) {
 269                                                 setFeedIcon(id, false,
 270                                                         getInitParam("icons_url") + "/" + id + ".ico");
 271                                         } else {
 272                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 273                                         }
 274                                 }
 275                         }
 276                 }
 277
 278                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 279
 280         } catch (e) {
 281                 exception_error("parse_counters", e);
 282         }
 283 }
 284
 285 function getFeedUnread(feed, is_cat) {
 286         try {
 287                 var tree = dijit.byId("feedTree");
 288
 289                 if (tree && tree.model)
 290                         return tree.model.getFeedUnread(feed, is_cat);
 291
 292         } catch (e) {
 293                 //
 294         }
 295
 296         return -1;
 297 }
 298
 299 function getFeedCategory(feed) {
 300         try {
 301                 var tree = dijit.byId("feedTree");
 302
 303                 if (tree && tree.model)
 304                         return tree.getFeedCategory(feed);
 305
 306         } catch (e) {
 307                 //
 308         }
 309
 310         return false;
 311 }
 312
 313 function hideOrShowFeeds(hide) {
 314         var tree = dijit.byId("feedTree");
 315
 316         if (tree)
 317                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 318 }
 319
 320 function getFeedName(feed, is_cat) {
 321         var tree = dijit.byId("feedTree");
 322
 323         if (tree && tree.model)
 324                 return tree.model.getFeedValue(feed, is_cat, 'name');
 325 }
 326
 327 function getFeedValue(feed, is_cat, key) {
 328         try {
 329                 var tree = dijit.byId("feedTree");
 330
 331                 if (tree && tree.model)
 332                         return tree.model.getFeedValue(feed, is_cat, key);
 333
 334         } catch (e) {
 335                 //
 336         }
 337         return '';
 338 }
 339
 340 function setFeedUnread(feed, is_cat, unread) {
 341         try {
 342                 var tree = dijit.byId("feedTree");
 343
 344                 if (tree && tree.model)
 345                         return tree.model.setFeedUnread(feed, is_cat, unread);
 346
 347         } catch (e) {
 348                 exception_error("setFeedUnread", e);
 349         }
 350 }
 351
 352 function setFeedValue(feed, is_cat, key, value) {
 353         try {
 354                 var tree = dijit.byId("feedTree");
 355
 356                 if (tree && tree.model)
 357                         return tree.model.setFeedValue(feed, is_cat, key, value);
 358
 359         } catch (e) {
 360                 //
 361         }
 362 }
 363
 364 function selectFeed(feed, is_cat) {
 365         try {
 366                 var tree = dijit.byId("feedTree");
 367
 368                 if (tree) return tree.selectFeed(feed, is_cat);
 369
 370         } catch (e) {
 371                 exception_error("selectFeed", e);
 372         }
 373 }
 374
 375 function setFeedIcon(feed, is_cat, src) {
 376         try {
 377                 var tree = dijit.byId("feedTree");
 378
 379                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 380
 381         } catch (e) {
 382                 exception_error("setFeedIcon", e);
 383         }
 384 }
 385
 386 function setFeedExpandoIcon(feed, is_cat, src) {
 387         try {
 388                 var tree = dijit.byId("feedTree");
 389
 390                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 391
 392         } catch (e) {
 393                 exception_error("setFeedIcon", e);
 394         }
 395         return false;
 396 }
 397
 398 function getNextUnreadFeed(feed, is_cat) {
 399         try {
 400                 var tree = dijit.byId("feedTree");
 401                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 402
 403                 if (nuf)
 404                         return tree.model.store.getValue(nuf, 'bare_id');
 405
 406         } catch (e) {
 407                 exception_error("getNextUnreadFeed", e);
 408         }
 409 }
 410
 411 function catchupCurrentFeed() {
 412         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 413 }
 414
 415 function catchupFeedInGroup(id) {
 416         try {
 417
 418                 var title = getFeedName(id);
 419
 420                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 421
 422                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 423                         return viewCurrentFeed('MarkAllReadGR:' + id);
 424                 }
 425
 426         } catch (e) {
 427                 exception_error("catchupFeedInGroup", e);
 428         }
 429 }
 430
 431 function catchupFeed(feed, is_cat) {
 432         try {
 433                 if (is_cat == undefined) is_cat = false;
 434
 435                 var str = __("Mark all articles in %s as read?");
 436                 var fn = getFeedName(feed, is_cat);
 437
 438                 str = str.replace("%s", fn);
 439
 440                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 441                         return;
 442                 }
 443
 444                 var max_id = 0;
 445
 446                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 447                         $$("#headlines-frame > div[id*=RROW]").each(
 448                                 function(child) {
 449                                         var id = parseInt(child.id.replace("RROW-", ""));
 450
 451                                         if (id > max_id) max_id = id;
 452                                 }
 453                         );
 454                 }
 455
 456                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 457                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 458
 459                 console.log(catchup_query);
 460
 461                 notify_progress("Loading, please wait...", true);
 462
 463                 new Ajax.Request("backend.php", {
 464                         parameters: catchup_query,
 465                         onComplete: function(transport) {
 466                                         handle_rpc_json(transport);
 467
 468                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 469
 470                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 471                                                         function(child) {
 472                                                                 child.removeClassName("Unread");
 473                                                         }
 474                                                 );
 475                                         }
 476
 477                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 478
 479                                         if (show_next_feed) {
 480                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 481
 482                                                 if (nuf) {
 483                                                         viewfeed(nuf, '', is_cat);
 484                                                 }
 485                                         }
 486
 487                                         notify("");
 488                                 } });
 489
 490         } catch (e) {
 491                 exception_error("catchupFeed", e);
 492         }
 493 }
 494
 495 function decrementFeedCounter(feed, is_cat) {
 496         try {
 497                 var ctr = getFeedUnread(feed, is_cat);
 498
 499                 if (ctr > 0) {
 500                         setFeedUnread(feed, is_cat, ctr - 1);
 501                         global_unread = global_unread - 1;
 502                         updateTitle();
 503
 504                         if (!is_cat) {
 505                                 var cat = parseInt(getFeedCategory(feed));
 506
 507                                 if (!isNaN(cat)) {
 508                                         ctr = getFeedUnread(cat, true);
 509
 510                                         if (ctr > 0) {
 511                                                 setFeedUnread(cat, true, ctr - 1);
 512                                         }
 513                                 }
 514                         }
 515                 }
 516
 517         } catch (e) {
 518                 exception_error("decrement_feed_counter", e);
 519         }
 520 }