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 (offset != 0) {
 152                                 query = query + "&skip=" + offset;
 153
 154                                 // to prevent duplicate feed titles when showing grouped vfeeds
 155                                 if (vgroup_last_feed) {
 156                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 157                                 }
 158                         }
 159
 160                         Form.enable("main_toolbar_form");
 161
 162                         if (!offset)
 163                                 if (!is_cat) {
 164                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 165                                                 notify_progress("Loading, please wait...", true);
 166                                 } else {
 167                                         notify_progress("Loading, please wait...", true);
 168                                 }
 169                 }
 170
 171                 query += "&cat=" + is_cat;
 172
 173                 console.log(query);
 174
 175                 new Ajax.Request("backend.php", {
 176                         parameters: query,
 177                         onComplete: function(transport) {
 178                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 179                                 headlines_callback2(transport, offset, background, infscroll_req);
 180                         } });
 181
 182         } catch (e) {
 183                 exception_error("viewfeed", e);
 184         }
 185 }
 186
 187 function feedlist_init() {
 188         try {
 189                 console.log("in feedlist init");
 190
 191                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 192                 document.onkeydown = hotkey_handler;
 193                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 194
 195                  if (!getActiveFeedId()) {
 196                         setTimeout("viewfeed(-3)", 100);
 197                 }
 198
 199                 console.log("T:" +
 200                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 201
 202                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 203
 204                 setTimeout("timeout()", 5000);
 205                 setTimeout("precache_headlines_idle()", 3000);
 206
 207         } catch (e) {
 208                 exception_error("feedlist/init", e);
 209         }
 210 }
 211
 212 function request_counters_real() {
 213         try {
 214                 console.log("requesting counters...");
 215
 216                 var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 217
 218                 query = query + "&omode=flc";
 219
 220                 new Ajax.Request("backend.php", {
 221                         parameters: query,
 222                         onComplete: function(transport) {
 223                                 try {
 224                                         handle_rpc_json(transport);
 225                                 } catch (e) {
 226                                         exception_error("viewfeed/getcounters", e);
 227                                 }
 228                         } });
 229
 230         } catch (e) {
 231                 exception_error("request_counters_real", e);
 232         }
 233 }
 234
 235
 236 function request_counters() {
 237
 238         try {
 239
 240                 if (getInitParam("bw_limit") == "1") return;
 241
 242                 var date = new Date();
 243                 var timestamp = Math.round(date.getTime() / 1000);
 244
 245                 if (timestamp - counters_last_request > 5) {
 246                         console.log("scheduling request of counters...");
 247
 248                         window.clearTimeout(counter_timeout_id);
 249                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 250
 251                         counters_last_request = timestamp;
 252                 } else {
 253                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 254                 }
 255
 256         } catch (e) {
 257                 exception_error("request_counters", e);
 258         }
 259 }
 260
 261 function displayNewContentPrompt(id) {
 262         try {
 263
 264                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 265                         __("New articles available in this feed (click to show)") + "</a>";
 266
 267                 msg = msg.replace("%s", getFeedName(id));
 268
 269                 $('auxDlg').innerHTML = msg;
 270
 271                 new Effect.Appear('auxDlg', {duration : 0.5});
 272
 273         } catch (e) {
 274                 exception_error("displayNewContentPrompt", e);
 275         }
 276 }
 277
 278 function parse_counters(elems, scheduled_call) {
 279         try {
 280                 for (var l = 0; l < elems.length; l++) {
 281
 282                         var id = elems[l].id;
 283                         var kind = elems[l].kind;
 284                         var ctr = parseInt(elems[l].counter);
 285                         var error = elems[l].error;
 286                         var has_img = elems[l].has_img;
 287                         var updated = elems[l].updated;
 288
 289                         if (id == "global-unread") {
 290                                 global_unread = ctr;
 291                                 updateTitle();
 292                                 continue;
 293                         }
 294
 295                         if (id == "subscribed-feeds") {
 296                                 feeds_found = ctr;
 297                                 continue;
 298                         }
 299
 300                         // TODO: enable new content notification for categories
 301
 302                         if (!activeFeedIsCat() && id == getActiveFeedId()
 303                                         && ctr > getFeedUnread(id) && scheduled_call) {
 304                                 displayNewContentPrompt(id);
 305                         }
 306
 307                         if (getFeedUnread(id, (kind == "cat")) != ctr)
 308                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 309
 310                         setFeedUnread(id, (kind == "cat"), ctr);
 311
 312                         if (kind != "cat") {
 313                                 setFeedValue(id, false, 'error', error);
 314                                 setFeedValue(id, false, 'updated', updated);
 315
 316                                 if (id > 0) {
 317                                         if (has_img) {
 318                                                 setFeedIcon(id, false,
 319                                                         getInitParam("icons_url") + "/" + id + ".ico");
 320                                         } else {
 321                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 322                                         }
 323                                 }
 324                         }
 325                 }
 326
 327                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 328
 329         } catch (e) {
 330                 exception_error("parse_counters", e);
 331         }
 332 }
 333
 334 function getFeedUnread(feed, is_cat) {
 335         try {
 336                 var tree = dijit.byId("feedTree");
 337
 338                 if (tree && tree.model)
 339                         return tree.model.getFeedUnread(feed, is_cat);
 340
 341         } catch (e) {
 342                 //
 343         }
 344
 345         return -1;
 346 }
 347
 348 function hideOrShowFeeds(hide) {
 349         var tree = dijit.byId("feedTree");
 350
 351         if (tree)
 352                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 353 }
 354
 355 function getFeedName(feed, is_cat) {
 356         var tree = dijit.byId("feedTree");
 357
 358         if (tree && tree.model)
 359                 return tree.model.getFeedValue(feed, is_cat, 'name');
 360 }
 361
 362 function getFeedValue(feed, is_cat, key) {
 363         try {
 364                 var tree = dijit.byId("feedTree");
 365
 366                 if (tree && tree.model)
 367                         return tree.model.getFeedValue(feed, is_cat, key);
 368
 369         } catch (e) {
 370                 //
 371         }
 372         return '';
 373 }
 374
 375 function setFeedUnread(feed, is_cat, unread) {
 376         try {
 377                 var tree = dijit.byId("feedTree");
 378
 379                 if (tree && tree.model)
 380                         return tree.model.setFeedUnread(feed, is_cat, unread);
 381
 382         } catch (e) {
 383                 exception_error("setFeedUnread", e);
 384         }
 385 }
 386
 387 function setFeedValue(feed, is_cat, key, value) {
 388         try {
 389                 var tree = dijit.byId("feedTree");
 390
 391                 if (tree && tree.model)
 392                         return tree.model.setFeedValue(feed, is_cat, key, value);
 393
 394         } catch (e) {
 395                 //
 396         }
 397 }
 398
 399 function selectFeed(feed, is_cat) {
 400         try {
 401                 var tree = dijit.byId("feedTree");
 402
 403                 if (tree) return tree.selectFeed(feed, is_cat);
 404
 405         } catch (e) {
 406                 exception_error("selectFeed", e);
 407         }
 408 }
 409
 410 function setFeedIcon(feed, is_cat, src) {
 411         try {
 412                 var tree = dijit.byId("feedTree");
 413
 414                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 415
 416         } catch (e) {
 417                 exception_error("setFeedIcon", e);
 418         }
 419 }
 420
 421 function setFeedExpandoIcon(feed, is_cat, src) {
 422         try {
 423                 var tree = dijit.byId("feedTree");
 424
 425                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 426
 427         } catch (e) {
 428                 exception_error("setFeedIcon", e);
 429         }
 430         return false;
 431 }
 432
 433 function getNextUnreadFeed(feed, is_cat) {
 434         try {
 435                 var tree = dijit.byId("feedTree");
 436                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 437
 438                 if (nuf)
 439                         return tree.model.store.getValue(nuf, 'bare_id');
 440
 441         } catch (e) {
 442                 exception_error("getNextUnreadFeed", e);
 443         }
 444 }
 445
 446 function catchupCurrentFeed() {
 447         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 448 }
 449
 450 function catchupFeedInGroup(id) {
 451         try {
 452
 453                 var title = getFeedName(id);
 454
 455                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 456
 457                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 458                         return viewCurrentFeed('MarkAllReadGR:' + id);
 459                 }
 460
 461         } catch (e) {
 462                 exception_error("catchupFeedInGroup", e);
 463         }
 464 }
 465
 466 function catchupFeed(feed, is_cat) {
 467         try {
 468                 var str = __("Mark all articles in %s as read?");
 469                 var fn = getFeedName(feed, is_cat);
 470
 471                 str = str.replace("%s", fn);
 472
 473                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 474                         return;
 475                 }
 476
 477                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 478                         feed + "&is_cat=" + is_cat;
 479
 480                 notify_progress("Loading, please wait...", true);
 481
 482                 new Ajax.Request("backend.php", {
 483                         parameters: catchup_query,
 484                         onComplete: function(transport) {
 485                                         handle_rpc_json(transport);
 486
 487                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 488
 489                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 490                                                         function(child) {
 491                                                                 child.removeClassName("Unread");
 492                                                         }
 493                                                 );
 494                                         }
 495
 496                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 497
 498                                         if (show_next_feed) {
 499                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 500
 501                                                 if (nuf) {
 502                                                         viewfeed(nuf, '', is_cat);
 503                                                 }
 504                                         }
 505
 506                                         notify("");
 507                                 } });
 508
 509         } catch (e) {
 510                 exception_error("catchupFeed", e);
 511         }
 512 }