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