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                 document.onkeydown = hotkey_handler;
 158                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 159
 160                 if (!getActiveFeedId()) {
 161                         viewfeed(-3);
 162                 } else {
 163                         viewfeed(getActiveFeedId(), '', activeFeedIsCat());
 164                 }
 165
 166                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 167
 168                 request_counters(true);
 169                 timeout();
 170
 171         } catch (e) {
 172                 exception_error("feedlist/init", e);
 173         }
 174 }
 175
 176
 177 function request_counters(force) {
 178         try {
 179                 var date = new Date();
 180                 var timestamp = Math.round(date.getTime() / 1000);
 181
 182                 if (force || timestamp - counters_last_request > 5) {
 183                         console.log("scheduling request of counters...");
 184
 185                         counters_last_request = timestamp;
 186
 187                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 188
 189                         if (!force)
 190                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 191
 192                         console.log(query);
 193
 194                         new Ajax.Request("backend.php", {
 195                                 parameters: query,
 196                                 onComplete: function(transport) {
 197                                         try {
 198                                                 handle_rpc_json(transport);
 199                                         } catch (e) {
 200                                                 exception_error("request_counters", e);
 201                                         }
 202                                 } });
 203
 204                 } else {
 205                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 206                 }
 207
 208         } catch (e) {
 209                 exception_error("request_counters", e);
 210         }
 211 }
 212
 213 function displayNewContentPrompt(id) {
 214         try {
 215
 216                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 217                         __("New articles available in this feed (click to show)") + "</a>";
 218
 219                 msg = msg.replace("%s", getFeedName(id));
 220
 221                 $('auxDlg').innerHTML = msg;
 222
 223                 new Effect.Appear('auxDlg', {duration : 0.5});
 224
 225         } catch (e) {
 226                 exception_error("displayNewContentPrompt", e);
 227         }
 228 }
 229
 230 function parse_counters(elems, scheduled_call) {
 231         try {
 232                 for (var l = 0; l < elems.length; l++) {
 233
 234                         var id = elems[l].id;
 235                         var kind = elems[l].kind;
 236                         var ctr = parseInt(elems[l].counter);
 237                         var error = elems[l].error;
 238                         var has_img = elems[l].has_img;
 239                         var updated = elems[l].updated;
 240
 241                         if (id == "global-unread") {
 242                                 global_unread = ctr;
 243                                 updateTitle();
 244                                 continue;
 245                         }
 246
 247                         if (id == "subscribed-feeds") {
 248                                 feeds_found = ctr;
 249                                 continue;
 250                         }
 251
 252                         if (id == getActiveFeedId() && ctr > getFeedUnread(id) && scheduled_call) {
 253                                 displayNewContentPrompt(id);
 254                         }
 255
 256                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 257                                         (kind == "cat")) {
 258                         }
 259
 260                         setFeedUnread(id, (kind == "cat"), ctr);
 261
 262                         if (kind != "cat") {
 263                                 setFeedValue(id, false, 'error', error);
 264                                 setFeedValue(id, false, 'updated', updated);
 265
 266                                 if (id > 0) {
 267                                         if (has_img) {
 268                                                 setFeedIcon(id, false,
 269                                                         getInitParam("icons_url") + "/" + id + ".ico");
 270                                         } else {
 271                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 272                                         }
 273                                 }
 274                         }
 275                 }
 276
 277                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 278
 279         } catch (e) {
 280                 exception_error("parse_counters", e);
 281         }
 282 }
 283
 284 function getFeedUnread(feed, is_cat) {
 285         try {
 286                 var tree = dijit.byId("feedTree");
 287
 288                 if (tree && tree.model)
 289                         return tree.model.getFeedUnread(feed, is_cat);
 290
 291         } catch (e) {
 292                 //
 293         }
 294
 295         return -1;
 296 }
 297
 298 function getFeedCategory(feed) {
 299         try {
 300                 var tree = dijit.byId("feedTree");
 301
 302                 if (tree && tree.model)
 303                         return tree.getFeedCategory(feed);
 304
 305         } catch (e) {
 306                 //
 307         }
 308
 309         return false;
 310 }
 311
 312 function hideOrShowFeeds(hide) {
 313         var tree = dijit.byId("feedTree");
 314
 315         if (tree)
 316                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 317 }
 318
 319 function getFeedName(feed, is_cat) {
 320         var tree = dijit.byId("feedTree");
 321
 322         if (tree && tree.model)
 323                 return tree.model.getFeedValue(feed, is_cat, 'name');
 324 }
 325
 326 function getFeedValue(feed, is_cat, key) {
 327         try {
 328                 var tree = dijit.byId("feedTree");
 329
 330                 if (tree && tree.model)
 331                         return tree.model.getFeedValue(feed, is_cat, key);
 332
 333         } catch (e) {
 334                 //
 335         }
 336         return '';
 337 }
 338
 339 function setFeedUnread(feed, is_cat, unread) {
 340         try {
 341                 var tree = dijit.byId("feedTree");
 342
 343                 if (tree && tree.model)
 344                         return tree.model.setFeedUnread(feed, is_cat, unread);
 345
 346         } catch (e) {
 347                 exception_error("setFeedUnread", e);
 348         }
 349 }
 350
 351 function setFeedValue(feed, is_cat, key, value) {
 352         try {
 353                 var tree = dijit.byId("feedTree");
 354
 355                 if (tree && tree.model)
 356                         return tree.model.setFeedValue(feed, is_cat, key, value);
 357
 358         } catch (e) {
 359                 //
 360         }
 361 }
 362
 363 function selectFeed(feed, is_cat) {
 364         try {
 365                 var tree = dijit.byId("feedTree");
 366
 367                 if (tree) return tree.selectFeed(feed, is_cat);
 368
 369         } catch (e) {
 370                 exception_error("selectFeed", e);
 371         }
 372 }
 373
 374 function setFeedIcon(feed, is_cat, src) {
 375         try {
 376                 var tree = dijit.byId("feedTree");
 377
 378                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 379
 380         } catch (e) {
 381                 exception_error("setFeedIcon", e);
 382         }
 383 }
 384
 385 function setFeedExpandoIcon(feed, is_cat, src) {
 386         try {
 387                 var tree = dijit.byId("feedTree");
 388
 389                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 390
 391         } catch (e) {
 392                 exception_error("setFeedIcon", e);
 393         }
 394         return false;
 395 }
 396
 397 function getNextUnreadFeed(feed, is_cat) {
 398         try {
 399                 var tree = dijit.byId("feedTree");
 400                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 401
 402                 if (nuf)
 403                         return tree.model.store.getValue(nuf, 'bare_id');
 404
 405         } catch (e) {
 406                 exception_error("getNextUnreadFeed", e);
 407         }
 408 }
 409
 410 function catchupCurrentFeed() {
 411         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 412 }
 413
 414 function catchupFeedInGroup(id) {
 415         try {
 416
 417                 var title = getFeedName(id);
 418
 419                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 420
 421                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 422                         return viewCurrentFeed('MarkAllReadGR:' + id);
 423                 }
 424
 425         } catch (e) {
 426                 exception_error("catchupFeedInGroup", e);
 427         }
 428 }
 429
 430 function catchupFeed(feed, is_cat) {
 431         try {
 432                 if (is_cat == undefined) is_cat = false;
 433
 434                 var str = __("Mark all articles in %s as read?");
 435                 var fn = getFeedName(feed, is_cat);
 436
 437                 str = str.replace("%s", fn);
 438
 439                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 440                         return;
 441                 }
 442
 443                 var max_id = 0;
 444
 445                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 446                         $$("#headlines-frame > div[id*=RROW]").each(
 447                                 function(child) {
 448                                         var id = parseInt(child.id.replace("RROW-", ""));
 449
 450                                         if (id > max_id) max_id = id;
 451                                 }
 452                         );
 453                 }
 454
 455                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 456                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 457
 458                 console.log(catchup_query);
 459
 460                 notify_progress("Loading, please wait...", true);
 461
 462                 new Ajax.Request("backend.php", {
 463                         parameters: catchup_query,
 464                         onComplete: function(transport) {
 465                                         handle_rpc_json(transport);
 466
 467                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 468
 469                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 470                                                         function(child) {
 471                                                                 child.removeClassName("Unread");
 472                                                         }
 473                                                 );
 474                                         }
 475
 476                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 477
 478                                         if (show_next_feed) {
 479                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 480
 481                                                 if (nuf) {
 482                                                         viewfeed(nuf, '', is_cat);
 483                                                 }
 484                                         }
 485
 486                                         notify("");
 487                                 } });
 488
 489         } catch (e) {
 490                 exception_error("catchupFeed", e);
 491         }
 492 }
 493
 494 function decrementFeedCounter(feed, is_cat) {
 495         try {
 496                 var ctr = getFeedUnread(feed, is_cat);
 497
 498                 if (ctr > 0) {
 499                         setFeedUnread(feed, is_cat, ctr - 1);
 500                         global_unread = global_unread - 1;
 501                         updateTitle();
 502
 503                         if (!is_cat) {
 504                                 var cat = parseInt(getFeedCategory(feed));
 505
 506                                 if (!isNaN(cat)) {
 507                                         ctr = getFeedUnread(cat, true);
 508
 509                                         if (ctr > 0) {
 510                                                 setFeedUnread(cat, true, ctr - 1);
 511                                         }
 512                                 }
 513                         }
 514                 }
 515
 516         } catch (e) {
 517                 exception_error("decrement_feed_counter", e);
 518         }
 519 }