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