feedlist.js

   1 //var _feed_cur_page = 0;
   2 var _infscroll_disable = 0;
   3 var _infscroll_request_sent = 0;
   4 var _search_query = false;
   5
   6 var counter_timeout_id = false;
   7
   8 var resize_enabled = false;
   9 var counters_last_request = 0;
  10
  11 function viewCategory(cat) {
  12         viewfeed(cat, '', true);
  13         return false;
  14 }
  15
  16 function loadMoreHeadlines() {
  17         try {
  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);
  44
  45         } catch (e) {
  46                 exception_error("viewNextFeedPage", e);
  47         }
  48 }
  49
  50
  51 function viewfeed(feed, subop, is_cat, offset, background) {
  52         try {
  53                 if (is_cat == undefined)
  54                         is_cat = false;
  55                 else
  56                         is_cat = !!is_cat;
  57
  58                 if (subop == undefined) subop = '';
  59                 if (offset == undefined) offset = 0;
  60                 if (background == undefined) background = false;
  61
  62                 last_requested_article = 0;
  63
  64                 var cached_headlines = false;
  65
  66                 if (feed == getActiveFeedId())
  67                         cache_delete("feed:" + feed + ":" + is_cat);
  68                 else
  69                         cached_headlines = cache_get("feed:" + feed + ":" + is_cat);
  70
  71                 dijit.byId("content-tabs").selectChild(
  72                         dijit.byId("content-tabs").getChildren()[0]);
  73
  74                 var force_nocache = false;
  75
  76                 if (!background) {
  77                         if (getActiveFeedId() != feed || offset == 0) {
  78                                 active_post_id = 0;
  79                                 _infscroll_disable = 0;
  80                         }
  81
  82                         if (!offset && !subop && cached_headlines && !background) {
  83                                 try {
  84                                         render_local_headlines(feed, is_cat, JSON.parse(cached_headlines));
  85                                         return;
  86                                 } catch (e) {
  87                                         console.warn("render_local_headlines failed: " + e);
  88                                 }
  89                         }
  90
  91                         if (offset != 0 && !subop) {
  92                                 var date = new Date();
  93                                 var timestamp = Math.round(date.getTime() / 1000);
  94
  95                                 if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
  96                                         //console.log("infscroll request in progress, aborting");
  97                                         return;
  98                                 }
  99
 100                                 _infscroll_request_sent = timestamp;
 101                         }
 102
 103                         hideAuxDlg();
 104                 }
 105
 106                 Form.enable("main_toolbar_form");
 107
 108                 var toolbar_query = Form.serialize("main_toolbar_form");
 109
 110                 var query = "?op=viewfeed&feed=" + feed + "&" +
 111                         toolbar_query + "&subop=" + param_escape(subop);
 112
 113                 if (!background) {
 114                         if (_search_query) {
 115                                 force_nocache = true;
 116                                 query = query + "&" + _search_query;
 117                                 _search_query = false;
 118                         }
 119
 120                         if (subop == "MarkAllRead") {
 121
 122                                 var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 123
 124                                 if (show_next_feed) {
 125                                         var nuf = getNextUnreadFeed(feed, is_cat);
 126
 127                                         if (nuf) {
 128                                                 var cached_nuf = cache_get("feed:" + nuf + ":false");
 129
 130                                                 if (cached_nuf) {
 131
 132                                                         render_local_headlines(nuf, false, JSON.parse(cached_nuf));
 133
 134                                                         var catchup_query = "?op=rpc&subop=catchupFeed&feed_id=" +
 135                                                                 feed + "&is_cat=" + is_cat;
 136
 137                                                         console.log(catchup_query);
 138
 139                                                         new Ajax.Request("backend.php", {
 140                                                                 parameters: catchup_query,
 141                                                                 onComplete: function(transport) {
 142                                                                         handle_rpc_json(transport);
 143                                                                 } });
 144
 145                                                         return;
 146                                                 } else {
 147                                                         query += "&nuf=" + param_escape(nuf);
 148                                                 }
 149                                         }
 150                                 }
 151                         }
 152
 153                         if (offset != 0) {
 154                                 query = query + "&skip=" + offset;
 155
 156                                 // to prevent duplicate feed titles when showing grouped vfeeds
 157                                 if (vgroup_last_feed) {
 158                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 159                                 }
 160                         }
 161
 162                         Form.enable("main_toolbar_form");
 163
 164                         if (!offset)
 165                                 if (!is_cat) {
 166                                         if (!setFeedExpandoIcon(feed, is_cat, 'images/indicator_white.gif'))
 167                                                 notify_progress("Loading, please wait...", true);
 168                                 } else {
 169                                         notify_progress("Loading, please wait...", true);
 170                                 }
 171                 }
 172
 173                 query += "&cat=" + is_cat;
 174
 175                 console.log(query);
 176
 177                 new Ajax.Request("backend.php", {
 178                         parameters: query,
 179                         onComplete: function(transport) {
 180                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 181                                 headlines_callback2(transport, offset, background);
 182                         } });
 183
 184         } catch (e) {
 185                 exception_error("viewfeed", e);
 186         }
 187 }
 188
 189 function feedlist_init() {
 190         try {
 191                 console.log("in feedlist init");
 192
 193                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 194                 document.onkeydown = hotkey_handler;
 195                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 196
 197                  if (!getActiveFeedId()) {
 198                         setTimeout("viewfeed(-3)", 100);
 199                 }
 200
 201                 console.log("T:" +
 202                                 getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
 203
 204                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 205
 206                 setTimeout("timeout()", 5000);
 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