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 (!setFeedExpandoIcon(feed, is_cat,
 130                                                         (is_cat) ? 'images/indicator_tiny.gif' : 'images/indicator_white.gif'))
 131                                         notify_progress("Loading, please wait...", true);
 132                         }
 133                 }
 134
 135                 query += "&cat=" + is_cat;
 136
 137                 console.log(query);
 138
 139                 new Ajax.Request("backend.php", {
 140                         parameters: query,
 141                         onComplete: function(transport) {
 142                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 143                                 headlines_callback2(transport, offset, background, infscroll_req);
 144                         } });
 145
 146         } catch (e) {
 147                 exception_error("viewfeed", e);
 148         }
 149 }
 150
 151 function feedlist_init() {
 152         try {
 153                 console.log("in feedlist init");
 154
 155                 document.onkeydown = hotkey_handler;
 156                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 157
 158                 if (!getActiveFeedId()) {
 159                         viewfeed(-3);
 160                 } else {
 161                         viewfeed(getActiveFeedId(), '', activeFeedIsCat());
 162                 }
 163
 164                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 165
 166                 request_counters(true);
 167                 timeout();
 168
 169         } catch (e) {
 170                 exception_error("feedlist/init", e);
 171         }
 172 }
 173
 174
 175 function request_counters(force) {
 176         try {
 177                 var date = new Date();
 178                 var timestamp = Math.round(date.getTime() / 1000);
 179
 180                 if (force || timestamp - counters_last_request > 5) {
 181                         console.log("scheduling request of counters...");
 182
 183                         counters_last_request = timestamp;
 184
 185                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 186
 187                         if (!force)
 188                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 189
 190                         console.log(query);
 191
 192                         new Ajax.Request("backend.php", {
 193                                 parameters: query,
 194                                 onComplete: function(transport) {
 195                                         try {
 196                                                 handle_rpc_json(transport);
 197                                         } catch (e) {
 198                                                 exception_error("request_counters", e);
 199                                         }
 200                                 } });
 201
 202                 } else {
 203                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 204                 }
 205
 206         } catch (e) {
 207                 exception_error("request_counters", e);
 208         }
 209 }
 210
 211 function displayNewContentPrompt(id) {
 212         try {
 213
 214                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 215                         __("New articles available in this feed (click to show)") + "</a>";
 216
 217                 msg = msg.replace("%s", getFeedName(id));
 218
 219                 $('auxDlg').innerHTML = msg;
 220
 221                 new Effect.Appear('auxDlg', {duration : 0.5});
 222
 223         } catch (e) {
 224                 exception_error("displayNewContentPrompt", e);
 225         }
 226 }
 227
 228 function parse_counters(elems, scheduled_call) {
 229         try {
 230                 for (var l = 0; l < elems.length; l++) {
 231
 232                         var id = elems[l].id;
 233                         var kind = elems[l].kind;
 234                         var ctr = parseInt(elems[l].counter);
 235                         var error = elems[l].error;
 236                         var has_img = elems[l].has_img;
 237                         var updated = elems[l].updated;
 238
 239                         if (id == "global-unread") {
 240                                 global_unread = ctr;
 241                                 updateTitle();
 242                                 continue;
 243                         }
 244
 245                         if (id == "subscribed-feeds") {
 246                                 feeds_found = ctr;
 247                                 continue;
 248                         }
 249
 250                         if (id == getActiveFeedId() && ctr > getFeedUnread(id) && scheduled_call) {
 251                                 displayNewContentPrompt(id);
 252                         }
 253
 254                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 255                                         (kind == "cat")) {
 256                         }
 257
 258                         setFeedUnread(id, (kind == "cat"), ctr);
 259
 260                         if (kind != "cat") {
 261                                 setFeedValue(id, false, 'error', error);
 262                                 setFeedValue(id, false, 'updated', updated);
 263
 264                                 if (id > 0) {
 265                                         if (has_img) {
 266                                                 setFeedIcon(id, false,
 267                                                         getInitParam("icons_url") + "/" + id + ".ico");
 268                                         } else {
 269                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 270                                         }
 271                                 }
 272                         }
 273                 }
 274
 275                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 276
 277         } catch (e) {
 278                 exception_error("parse_counters", e);
 279         }
 280 }
 281
 282 function getFeedUnread(feed, is_cat) {
 283         try {
 284                 var tree = dijit.byId("feedTree");
 285
 286                 if (tree && tree.model)
 287                         return tree.model.getFeedUnread(feed, is_cat);
 288
 289         } catch (e) {
 290                 //
 291         }
 292
 293         return -1;
 294 }
 295
 296 function getFeedCategory(feed) {
 297         try {
 298                 var tree = dijit.byId("feedTree");
 299
 300                 if (tree && tree.model)
 301                         return tree.getFeedCategory(feed);
 302
 303         } catch (e) {
 304                 //
 305         }
 306
 307         return false;
 308 }
 309
 310 function hideOrShowFeeds(hide) {
 311         var tree = dijit.byId("feedTree");
 312
 313         if (tree)
 314                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 315 }
 316
 317 function getFeedName(feed, is_cat) {
 318         var tree = dijit.byId("feedTree");
 319
 320         if (tree && tree.model)
 321                 return tree.model.getFeedValue(feed, is_cat, 'name');
 322 }
 323
 324 function getFeedValue(feed, is_cat, key) {
 325         try {
 326                 var tree = dijit.byId("feedTree");
 327
 328                 if (tree && tree.model)
 329                         return tree.model.getFeedValue(feed, is_cat, key);
 330
 331         } catch (e) {
 332                 //
 333         }
 334         return '';
 335 }
 336
 337 function setFeedUnread(feed, is_cat, unread) {
 338         try {
 339                 var tree = dijit.byId("feedTree");
 340
 341                 if (tree && tree.model)
 342                         return tree.model.setFeedUnread(feed, is_cat, unread);
 343
 344         } catch (e) {
 345                 exception_error("setFeedUnread", e);
 346         }
 347 }
 348
 349 function setFeedValue(feed, is_cat, key, value) {
 350         try {
 351                 var tree = dijit.byId("feedTree");
 352
 353                 if (tree && tree.model)
 354                         return tree.model.setFeedValue(feed, is_cat, key, value);
 355
 356         } catch (e) {
 357                 //
 358         }
 359 }
 360
 361 function selectFeed(feed, is_cat) {
 362         try {
 363                 var tree = dijit.byId("feedTree");
 364
 365                 if (tree) return tree.selectFeed(feed, is_cat);
 366
 367         } catch (e) {
 368                 exception_error("selectFeed", e);
 369         }
 370 }
 371
 372 function setFeedIcon(feed, is_cat, src) {
 373         try {
 374                 var tree = dijit.byId("feedTree");
 375
 376                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 377
 378         } catch (e) {
 379                 exception_error("setFeedIcon", e);
 380         }
 381 }
 382
 383 function setFeedExpandoIcon(feed, is_cat, src) {
 384         try {
 385                 var tree = dijit.byId("feedTree");
 386
 387                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 388
 389         } catch (e) {
 390                 exception_error("setFeedIcon", e);
 391         }
 392         return false;
 393 }
 394
 395 function getNextUnreadFeed(feed, is_cat) {
 396         try {
 397                 var tree = dijit.byId("feedTree");
 398                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 399
 400                 if (nuf)
 401                         return tree.model.store.getValue(nuf, 'bare_id');
 402
 403         } catch (e) {
 404                 exception_error("getNextUnreadFeed", e);
 405         }
 406 }
 407
 408 function catchupCurrentFeed() {
 409         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 410 }
 411
 412 function catchupFeedInGroup(id) {
 413         try {
 414
 415                 var title = getFeedName(id);
 416
 417                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 418
 419                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 420                         return viewCurrentFeed('MarkAllReadGR:' + id);
 421                 }
 422
 423         } catch (e) {
 424                 exception_error("catchupFeedInGroup", e);
 425         }
 426 }
 427
 428 function catchupFeed(feed, is_cat) {
 429         try {
 430                 if (is_cat == undefined) is_cat = false;
 431
 432                 var str = __("Mark all articles in %s as read?");
 433                 var fn = getFeedName(feed, is_cat);
 434
 435                 str = str.replace("%s", fn);
 436
 437                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 438                         return;
 439                 }
 440
 441                 var max_id = 0;
 442
 443                 if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 444                         $$("#headlines-frame > div[id*=RROW]").each(
 445                                 function(child) {
 446                                         var id = parseInt(child.id.replace("RROW-", ""));
 447
 448                                         if (id > max_id) max_id = id;
 449                                 }
 450                         );
 451                 }
 452
 453                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 454                         feed + "&is_cat=" + is_cat + "&max_id=" + max_id;
 455
 456                 console.log(catchup_query);
 457
 458                 notify_progress("Loading, please wait...", true);
 459
 460                 new Ajax.Request("backend.php", {
 461                         parameters: catchup_query,
 462                         onComplete: function(transport) {
 463                                         handle_rpc_json(transport);
 464
 465                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 466
 467                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 468                                                         function(child) {
 469                                                                 child.removeClassName("Unread");
 470                                                         }
 471                                                 );
 472                                         }
 473
 474                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 475
 476                                         if (show_next_feed) {
 477                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 478
 479                                                 if (nuf) {
 480                                                         viewfeed(nuf, '', is_cat);
 481                                                 }
 482                                         }
 483
 484                                         notify("");
 485                                 } });
 486
 487         } catch (e) {
 488                 exception_error("catchupFeed", e);
 489         }
 490 }
 491
 492 function decrementFeedCounter(feed, is_cat) {
 493         try {
 494                 var ctr = getFeedUnread(feed, is_cat);
 495
 496                 if (ctr > 0) {
 497                         setFeedUnread(feed, is_cat, ctr - 1);
 498                         global_unread = global_unread - 1;
 499                         updateTitle();
 500
 501                         if (!is_cat) {
 502                                 var cat = parseInt(getFeedCategory(feed));
 503
 504                                 if (!isNaN(cat)) {
 505                                         ctr = getFeedUnread(cat, true);
 506
 507                                         if (ctr > 0) {
 508                                                 setFeedUnread(cat, true, ctr - 1);
 509                                         }
 510                                 }
 511                         }
 512                 }
 513
 514         } catch (e) {
 515                 exception_error("decrement_feed_counter", e);
 516         }
 517 }