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                 var offset = 0;
  17
  18                 var view_mode = document.forms["main_toolbar_form"].view_mode.value;
  19                 var num_unread = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
  20                 var num_all = $$("#headlines-frame > div[id*=RROW]").length;
  21
  22                 // TODO implement marked & published
  23
  24                 if (view_mode == "marked") {
  25                         console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
  26                         offset = num_all;
  27                 } else if (view_mode == "published") {
  28                         console.warn("loadMoreHeadlines: published is not implemented, falling back.");
  29                         offset = num_all;
  30                 } else if (view_mode == "unread") {
  31                         offset = num_unread;
  32                 } else if (view_mode == "adaptive") {
  33                         if (num_unread > 0)
  34                                 offset = num_unread;
  35                         else
  36                                 offset = num_all;
  37                 } else {
  38                         offset = num_all;
  39                 }
  40
  41                 viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset);
  42
  43         } catch (e) {
  44                 exception_error("viewNextFeedPage", e);
  45         }
  46 }
  47
  48
  49 function viewfeed(feed, subop, is_cat, offset, background) {
  50         try {
  51                 if (is_cat == undefined)
  52                         is_cat = false;
  53                 else
  54                         is_cat = !!is_cat;
  55
  56                 if (subop == undefined) subop = '';
  57                 if (offset == undefined) offset = 0;
  58                 if (background == undefined) background = false;
  59
  60                 last_requested_article = 0;
  61
  62                 var cached_headlines = false;
  63
  64                 if (feed == getActiveFeedId())
  65                         cache_delete("feed:" + feed + ":" + is_cat);
  66                 else
  67                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  68
  69                 if (offset == 0)
  70                         dijit.byId("content-tabs").selectChild(
  71                                 dijit.byId("content-tabs").getChildren()[0]);
  72
  73                 var force_nocache = false;
  74
  75                 if (!background) {
  76                         if (getActiveFeedId() != feed || offset == 0) {
  77                                 active_post_id = 0;
  78                                 _infscroll_disable = 0;
  79                         }
  80
  81                         if (!offset && !subop && cached_headlines && !background) {
  82                                 try {
  83                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
  84                                         return;
  85                                 } catch (e) {
  86                                         console.warn("render_local_headlines failed: " + e);
  87                                 }
  88                         }
  89
  90                         if (offset != 0 && !subop) {
  91                                 var date = new Date();
  92                                 var timestamp = Math.round(date.getTime() / 1000);
  93
  94                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
  95                                         //console.log("infscroll request in progress, aborting");
  96                                         return;
  97                                 }
  98
  99                                 _infscroll_request_sent = timestamp;
 100                         }
 101
 102                         hideAuxDlg();
 103                 }
 104
 105                 Form.enable("main_toolbar_form");
 106
 107                 var toolbar_query = Form.serialize("main_toolbar_form");
 108
 109                 var query = "?op=viewfeed&feed=" + feed + "&" +
 110                         toolbar_query + "&subop=" + param_escape(subop);
 111
 112                 if (!background) {
 113                         if (_search_query) {
 114                                 force_nocache = true;
 115                                 query = query + "&" + _search_query;
 116                                 _search_query = false;
 117                         }
 118
 119                         if (subop == "MarkAllRead") {
 120
 121                                 var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 122
 123                                 if (show_next_feed) {
 124                                         var nuf = getNextUnreadFeed(feed, is_cat);
 125
 126                                         if (nuf) {
 127                                                 var cached_nuf = cache_get("feed:" + nuf + ":false");
 128
 129                                                 if (cached_nuf) {
 130
 131                                                         render_local_headlines(nuf, false, JSON.parse(cached_nuf));
 132
 133                                                         var catchup_query = "?op=rpc&subop=catchupFeed&feed_id=" +
 134                                                                 feed + "&is_cat=" + is_cat;
 135
 136                                                         console.log(catchup_query);
 137
 138                                                         new Ajax.Request("backend.php", {
 139                                                                 parameters: catchup_query,
 140                                                                 onComplete: function(transport) {
 141                                                                         handle_rpc_json(transport);
 142                                                                 } });
 143
 144                                                         return;
 145                                                 } else {
 146                                                         query += "&nuf=" + param_escape(nuf);
 147                                                 }
 148                                         }
 149                                 }
 150                         }
 151
 152                         if (offset != 0) {
 153                                 query = query + "&skip=" + offset;
 154
 155                                 // to prevent duplicate feed titles when showing grouped vfeeds
 156                                 if (vgroup_last_feed) {
 157                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 158                                 }
 159                         }
 160
 161                         Form.enable("main_toolbar_form");
 162
 163                         if (!offset)
 164                                 if (!is_cat) {
 165                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 166                                                 notify_progress("Loading, please wait...", true);
 167                                 } else {
 168                                         notify_progress("Loading, please wait...", true);
 169                                 }
 170                 }
 171
 172                 query += "&cat=" + is_cat;
 173
 174                 console.log(query);
 175
 176                 new Ajax.Request("backend.php", {
 177                         parameters: query,
 178                         onComplete: function(transport) {
 179                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 180                                 headlines_callback2(transport, offset, background);
 181                         } });
 182
 183         } catch (e) {
 184                 exception_error("viewfeed", e);
 185         }
 186 }
 187
 188 function feedlist_init() {
 189         try {
 190                 console.log("in feedlist init");
 191
 192                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 193                 document.onkeydown = hotkey_handler;
 194                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 195
 196                  if (!getActiveFeedId()) {
 197                         setTimeout("viewfeed(-3)", 100);
 198                 }
 199
 200                 console.log("T:" +
 201                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 202
 203                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 204
 205                 setTimeout("timeout()", 5000);
 206                 setTimeout("precache_headlines_idle()", 3000);
 207
 208         } catch (e) {
 209                 exception_error("feedlist/init", e);
 210         }
 211 }
 212
 213 function request_counters_real() {
 214         try {
 215                 console.log("requesting counters...");
 216
 217                 var query = "?op=rpc&subop=getAllCounters&seq=" + next_seq();
 218
 219                 query = query + "&omode=flc";
 220
 221                 new Ajax.Request("backend.php", {
 222                         parameters: query,
 223                         onComplete: function(transport) {
 224                                 try {
 225                                         handle_rpc_json(transport);
 226                                 } catch (e) {
 227                                         exception_error("viewfeed/getcounters", e);
 228                                 }
 229                         } });
 230
 231         } catch (e) {
 232                 exception_error("request_counters_real", e);
 233         }
 234 }
 235
 236
 237 function request_counters() {
 238
 239         try {
 240
 241                 if (getInitParam("bw_limit") == "1") return;
 242
 243                 var date = new Date();
 244                 var timestamp = Math.round(date.getTime() / 1000);
 245
 246                 if (timestamp - counters_last_request > 5) {
 247                         console.log("scheduling request of counters...");
 248
 249                         window.clearTimeout(counter_timeout_id);
 250                         counter_timeout_id = window.setTimeout("request_counters_real()", 1000);
 251
 252                         counters_last_request = timestamp;
 253                 } else {
 254                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 255                 }
 256
 257         } catch (e) {
 258                 exception_error("request_counters", e);
 259         }
 260 }
 261
 262 function displayNewContentPrompt(id) {
 263         try {
 264
 265                 var msg = "<a href='#' onclick='viewCurrentFeed()'>" +
 266                         __("New articles available in this feed (click to show)") + "</a>";
 267
 268                 msg = msg.replace("%s", getFeedName(id));
 269
 270                 $('auxDlg').innerHTML = msg;
 271
 272                 new Effect.Appear('auxDlg', {duration : 0.5});
 273
 274         } catch (e) {
 275                 exception_error("displayNewContentPrompt", e);
 276         }
 277 }
 278
 279 function parse_counters(elems, scheduled_call) {
 280         try {
 281
 282                 var feeds_found = 0;
 283
 284                 for (var l = 0; l < elems.length; l++) {
 285
 286                         var id = elems[l].id
 287                         var kind = elems[l].kind;
 288                         var ctr = parseInt(elems[l].counter)
 289                         var error = elems[l].error;
 290                         var has_img = elems[l].has_img;
 291                         var updated = elems[l].updated;
 292                         var title = elems[l].title;
 293
 294                         if (id == "global-unread") {
 295                                 global_unread = ctr;
 296                                 updateTitle();
 297                                 continue;
 298                         }
 299
 300                         if (id == "subscribed-feeds") {
 301                                 feeds_found = ctr;
 302                                 continue;
 303                         }
 304
 305                         var treeItem;
 306
 307                         // TODO: enable new content notification for categories
 308
 309                         if (!activeFeedIsCat() && id == getActiveFeedId()
 310                                         && ctr > getFeedUnread(id) && scheduled_call) {
 311                                 displayNewContentPrompt(id);
 312                         }
 313
 314                         if (getFeedUnread(id, (kind == "cat")) != ctr)
 315                                 cache_delete("feed:" + id + ":" + (kind == "cat"));
 316
 317                         setFeedUnread(id, (kind == "cat"), ctr);
 318
 319                         if (kind != "cat") {
 320                                 setFeedValue(id, false, 'error', error);
 321                                 setFeedValue(id, false, 'updated', updated);
 322
 323                                 if (id > 0) {
 324                                         if (has_img) {
 325                                                 setFeedIcon(id, false,
 326                                                         getInitParam("icons_url") + "/" + id + ".ico");
 327                                         } else {
 328                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 329                                         }
 330                                 }
 331                         }
 332                 }
 333
 334                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 335
 336         } catch (e) {
 337                 exception_error("parse_counters", e);
 338         }
 339 }
 340
 341 function getFeedUnread(feed, is_cat) {
 342         try {
 343                 var tree = dijit.byId("feedTree");
 344
 345                 if (tree && tree.model)
 346                         return tree.model.getFeedUnread(feed, is_cat);
 347
 348         } catch (e) {
 349                 //
 350         }
 351
 352         return -1;
 353 }
 354
 355 function resort_feedlist() {
 356         console.warn("resort_feedlist: function not implemented");
 357 }
 358
 359 function hideOrShowFeeds(hide) {
 360         var tree = dijit.byId("feedTree");
 361
 362         if (tree)
 363                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 364 }
 365
 366 function getFeedName(feed, is_cat) {
 367         var tree = dijit.byId("feedTree");
 368
 369         if (tree && tree.model)
 370                 return tree.model.getFeedValue(feed, is_cat, 'name');
 371 }
 372
 373 function getFeedValue(feed, is_cat, key) {
 374         try {
 375                 var tree = dijit.byId("feedTree");
 376
 377                 if (tree && tree.model)
 378                         return tree.model.getFeedValue(feed, is_cat, key);
 379
 380         } catch (e) {
 381                 //
 382         }
 383         return '';
 384 }
 385
 386 function setFeedUnread(feed, is_cat, unread) {
 387         try {
 388                 var tree = dijit.byId("feedTree");
 389
 390                 if (tree && tree.model)
 391                         return tree.model.setFeedUnread(feed, is_cat, unread);
 392
 393         } catch (e) {
 394                 exception_error("setFeedUnread", e);
 395         }
 396 }
 397
 398 function setFeedValue(feed, is_cat, key, value) {
 399         try {
 400                 var tree = dijit.byId("feedTree");
 401
 402                 if (tree && tree.model)
 403                         return tree.model.setFeedValue(feed, is_cat, key, value);
 404
 405         } catch (e) {
 406                 //
 407         }
 408 }
 409
 410 function selectFeed(feed, is_cat) {
 411         try {
 412                 var tree = dijit.byId("feedTree");
 413
 414                 if (tree) return tree.selectFeed(feed, is_cat);
 415
 416         } catch (e) {
 417                 exception_error("selectFeed", e);
 418         }
 419 }
 420
 421 function setFeedIcon(feed, is_cat, src) {
 422         try {
 423                 var tree = dijit.byId("feedTree");
 424
 425                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 426
 427         } catch (e) {
 428                 exception_error("setFeedIcon", e);
 429         }
 430 }
 431
 432 function setFeedExpandoIcon(feed, is_cat, src) {
 433         try {
 434                 var tree = dijit.byId("feedTree");
 435
 436                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 437
 438         } catch (e) {
 439                 exception_error("setFeedIcon", e);
 440         }
 441         return false;
 442 }
 443
 444 function getNextUnreadFeed(feed, is_cat) {
 445         try {
 446                 var tree = dijit.byId("feedTree");
 447                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 448
 449                 if (nuf)
 450                         return tree.model.store.getValue(nuf, 'bare_id');
 451
 452         } catch (e) {
 453                 exception_error("getNextUnreadFeed", e);
 454         }
 455 }
 456