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
  93                 Form.enable("main_toolbar_form");
  94
  95                 var toolbar_query = Form.serialize("main_toolbar_form");
  96
  97                 var query = "?op=feeds&method=view&feed=" + feed + "&" +
  98                         toolbar_query;
  99
 100                 if (method) {
 101                         query = query + "&m=" + param_escape(method);
 102                 }
 103
 104                 if (!background) {
 105                         if (_search_query) {
 106                                 force_nocache = true;
 107                                 query = query + "&" + _search_query;
 108                                 //_search_query = false;
 109                         }
 110
 111                         if (offset != 0) {
 112                                 query = query + "&skip=" + offset;
 113
 114                                 // to prevent duplicate feed titles when showing grouped vfeeds
 115                                 if (vgroup_last_feed) {
 116                                         query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 117                                 }
 118                         } else {
 119                                 if (!method && !is_cat && feed == getActiveFeedId()) {
 120                                         query = query + "&m=ForceUpdate";
 121                                 }
 122                         }
 123
 124                         Form.enable("main_toolbar_form");
 125
 126                         if (!setFeedExpandoIcon(feed, is_cat,
 127                                 (is_cat) ? 'images/indicator_tiny.gif' : 'images/indicator_white.gif'))
 128                                         notify_progress("Loading, please wait...", true);
 129                 }
 130
 131                 query += "&cat=" + is_cat;
 132
 133                 console.log(query);
 134
 135                 new Ajax.Request("backend.php", {
 136                         parameters: query,
 137                         onComplete: function(transport) {
 138                                 setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
 139                                 headlines_callback2(transport, offset, background, infscroll_req);
 140                         } });
 141
 142         } catch (e) {
 143                 exception_error("viewfeed", e);
 144         }
 145 }
 146
 147 function feedlist_init() {
 148         try {
 149                 console.log("in feedlist init");
 150
 151                 document.onkeydown = hotkey_handler;
 152                 setTimeout("hotkey_prefix_timeout()", 5*1000);
 153
 154                 if (!getActiveFeedId()) {
 155                         viewfeed(-3);
 156                 } else {
 157                         viewfeed(getActiveFeedId(), '', activeFeedIsCat());
 158                 }
 159
 160                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 161
 162                 request_counters(true);
 163                 timeout();
 164
 165         } catch (e) {
 166                 exception_error("feedlist/init", e);
 167         }
 168 }
 169
 170
 171 function request_counters(force) {
 172         try {
 173                 var date = new Date();
 174                 var timestamp = Math.round(date.getTime() / 1000);
 175
 176                 if (force || timestamp - counters_last_request > 5) {
 177                         console.log("scheduling request of counters...");
 178
 179                         counters_last_request = timestamp;
 180
 181                         var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
 182
 183                         if (!force)
 184                                 query = query + "&last_article_id=" + getInitParam("last_article_id");
 185
 186                         console.log(query);
 187
 188                         new Ajax.Request("backend.php", {
 189                                 parameters: query,
 190                                 onComplete: function(transport) {
 191                                         try {
 192                                                 handle_rpc_json(transport);
 193                                         } catch (e) {
 194                                                 exception_error("request_counters", e);
 195                                         }
 196                                 } });
 197
 198                 } else {
 199                         console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
 200                 }
 201
 202         } catch (e) {
 203                 exception_error("request_counters", e);
 204         }
 205 }
 206
 207 function parse_counters(elems, scheduled_call) {
 208         try {
 209                 for (var l = 0; l < elems.length; l++) {
 210
 211                         var id = elems[l].id;
 212                         var kind = elems[l].kind;
 213                         var ctr = parseInt(elems[l].counter);
 214                         var error = elems[l].error;
 215                         var has_img = elems[l].has_img;
 216                         var updated = elems[l].updated;
 217
 218                         if (id == "global-unread") {
 219                                 global_unread = ctr;
 220                                 updateTitle();
 221                                 continue;
 222                         }
 223
 224                         if (id == "subscribed-feeds") {
 225                                 feeds_found = ctr;
 226                                 continue;
 227                         }
 228
 229                         if (getFeedUnread(id, (kind == "cat")) != ctr ||
 230                                         (kind == "cat")) {
 231                         }
 232
 233                         setFeedUnread(id, (kind == "cat"), ctr);
 234
 235                         if (kind != "cat") {
 236                                 setFeedValue(id, false, 'error', error);
 237                                 setFeedValue(id, false, 'updated', updated);
 238
 239                                 if (id > 0) {
 240                                         if (has_img) {
 241                                                 setFeedIcon(id, false,
 242                                                         getInitParam("icons_url") + "/" + id + ".ico");
 243                                         } else {
 244                                                 setFeedIcon(id, false, 'images/blank_icon.gif');
 245                                         }
 246                                 }
 247                         }
 248                 }
 249
 250                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 251
 252         } catch (e) {
 253                 exception_error("parse_counters", e);
 254         }
 255 }
 256
 257 function getFeedUnread(feed, is_cat) {
 258         try {
 259                 var tree = dijit.byId("feedTree");
 260
 261                 if (tree && tree.model)
 262                         return tree.model.getFeedUnread(feed, is_cat);
 263
 264         } catch (e) {
 265                 //
 266         }
 267
 268         return -1;
 269 }
 270
 271 function getFeedCategory(feed) {
 272         try {
 273                 var tree = dijit.byId("feedTree");
 274
 275                 if (tree && tree.model)
 276                         return tree.getFeedCategory(feed);
 277
 278         } catch (e) {
 279                 //
 280         }
 281
 282         return false;
 283 }
 284
 285 function hideOrShowFeeds(hide) {
 286         var tree = dijit.byId("feedTree");
 287
 288         if (tree)
 289                 return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
 290 }
 291
 292 function getFeedName(feed, is_cat) {
 293         var tree = dijit.byId("feedTree");
 294
 295         if (tree && tree.model)
 296                 return tree.model.getFeedValue(feed, is_cat, 'name');
 297 }
 298
 299 function getFeedValue(feed, is_cat, key) {
 300         try {
 301                 var tree = dijit.byId("feedTree");
 302
 303                 if (tree && tree.model)
 304                         return tree.model.getFeedValue(feed, is_cat, key);
 305
 306         } catch (e) {
 307                 //
 308         }
 309         return '';
 310 }
 311
 312 function setFeedUnread(feed, is_cat, unread) {
 313         try {
 314                 var tree = dijit.byId("feedTree");
 315
 316                 if (tree && tree.model)
 317                         return tree.model.setFeedUnread(feed, is_cat, unread);
 318
 319         } catch (e) {
 320                 exception_error("setFeedUnread", e);
 321         }
 322 }
 323
 324 function setFeedValue(feed, is_cat, key, value) {
 325         try {
 326                 var tree = dijit.byId("feedTree");
 327
 328                 if (tree && tree.model)
 329                         return tree.model.setFeedValue(feed, is_cat, key, value);
 330
 331         } catch (e) {
 332                 //
 333         }
 334 }
 335
 336 function selectFeed(feed, is_cat) {
 337         try {
 338                 var tree = dijit.byId("feedTree");
 339
 340                 if (tree) return tree.selectFeed(feed, is_cat);
 341
 342         } catch (e) {
 343                 exception_error("selectFeed", e);
 344         }
 345 }
 346
 347 function setFeedIcon(feed, is_cat, src) {
 348         try {
 349                 var tree = dijit.byId("feedTree");
 350
 351                 if (tree) return tree.setFeedIcon(feed, is_cat, src);
 352
 353         } catch (e) {
 354                 exception_error("setFeedIcon", e);
 355         }
 356 }
 357
 358 function setFeedExpandoIcon(feed, is_cat, src) {
 359         try {
 360                 var tree = dijit.byId("feedTree");
 361
 362                 if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
 363
 364         } catch (e) {
 365                 exception_error("setFeedIcon", e);
 366         }
 367         return false;
 368 }
 369
 370 function getNextUnreadFeed(feed, is_cat) {
 371         try {
 372                 var tree = dijit.byId("feedTree");
 373                 var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
 374
 375                 if (nuf)
 376                         return tree.model.store.getValue(nuf, 'bare_id');
 377
 378         } catch (e) {
 379                 exception_error("getNextUnreadFeed", e);
 380         }
 381 }
 382
 383 function catchupCurrentFeed() {
 384         return catchupFeed(getActiveFeedId(), activeFeedIsCat());
 385 }
 386
 387 function catchupFeedInGroup(id) {
 388         try {
 389
 390                 var title = getFeedName(id);
 391
 392                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 393
 394                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 395                         return viewCurrentFeed('MarkAllReadGR:' + id);
 396                 }
 397
 398         } catch (e) {
 399                 exception_error("catchupFeedInGroup", e);
 400         }
 401 }
 402
 403 function catchupFeed(feed, is_cat) {
 404         try {
 405                 if (is_cat == undefined) is_cat = false;
 406
 407                 var str = __("Mark all articles in %s as read?");
 408                 var fn = getFeedName(feed, is_cat);
 409
 410                 str = str.replace("%s", fn);
 411
 412                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 413                         return;
 414                 }
 415
 416                 var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
 417                         feed + "&is_cat=" + is_cat;
 418
 419                 console.log(catchup_query);
 420
 421                 notify_progress("Loading, please wait...", true);
 422
 423                 new Ajax.Request("backend.php", {
 424                         parameters: catchup_query,
 425                         onComplete: function(transport) {
 426                                         handle_rpc_json(transport);
 427
 428                                         if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
 429
 430                                                 $$("#headlines-frame > div[id*=RROW][class*=Unread]").each(
 431                                                         function(child) {
 432                                                                 child.removeClassName("Unread");
 433                                                         }
 434                                                 );
 435                                         }
 436
 437                                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
 438
 439                                         if (show_next_feed) {
 440                                                 var nuf = getNextUnreadFeed(feed, is_cat);
 441
 442                                                 if (nuf) {
 443                                                         viewfeed(nuf, '', is_cat);
 444                                                 }
 445                                         }
 446
 447                                         notify("");
 448                                 } });
 449
 450         } catch (e) {
 451                 exception_error("catchupFeed", e);
 452         }
 453 }
 454
 455 function decrementFeedCounter(feed, is_cat) {
 456         try {
 457                 var ctr = getFeedUnread(feed, is_cat);
 458
 459                 if (ctr > 0) {
 460                         setFeedUnread(feed, is_cat, ctr - 1);
 461                         global_unread = global_unread - 1;
 462                         updateTitle();
 463
 464                         if (!is_cat) {
 465                                 var cat = parseInt(getFeedCategory(feed));
 466
 467                                 if (!isNaN(cat)) {
 468                                         ctr = getFeedUnread(cat, true);
 469
 470                                         if (ctr > 0) {
 471                                                 setFeedUnread(cat, true, ctr - 1);
 472                                         }
 473                                 }
 474                         }
 475                 }
 476
 477         } catch (e) {
 478                 exception_error("decrement_feed_counter", e);
 479         }
 480 }
 481
 482