digest.js

   1 var last_feeds = [];
   2
   3 var _active_feed_id = false;
   4 var _active_feed_offset = false;
   5 var _update_timeout = false;
   6 var _feedlist_expanded = false;
   7
   8 function catchup_feed(feed_id, callback) {
   9         try {
  10
  11                 var fn = find_feed(last_feeds, feed_id).title;
  12
  13                 if (confirm(__("Mark all articles in %s as read?").replace("%s", fn))) {
  14
  15                         var is_cat = "";
  16
  17                         if (feed_id == -4) is_cat = "true";
  18
  19                         var query = "?op=rpc&subop=catchupFeed&feed_id=" +
  20                                 feed_id + "&is_cat=" + is_cat;
  21
  22                         new Ajax.Request("backend.php", {
  23                                 parameters: query,
  24                                 onComplete: function(transport) {
  25                                         if (callback) callback(transport);
  26
  27                                         update();
  28                                 } });
  29                 }
  30
  31         } catch (e) {
  32                 exception_error("catchup_article", e);
  33         }
  34 }
  35
  36 function catchup_visible_articles(callback) {
  37         try {
  38                 var elems = $("headlines-content").getElementsByTagName("LI");
  39                 var ids = [];
  40
  41                 for (var i = 0; i < elems.length; i++) {
  42                         if (elems[i].id && elems[i].id.match("A-")) {
  43                                 ids.push(elems[i].id.replace("A-", ""));
  44                         }
  45                 }
  46
  47                 var query = "?op=rpc&subop=catchupSelected" +
  48                         "&cmode=0&ids=" + param_escape(ids);
  49
  50                 new Ajax.Request("backend.php", {
  51                         parameters: query,
  52                         onComplete: function(transport) {
  53                                 if (callback) callback(transport);
  54
  55                                 viewfeed(_active_feed_id, 0);
  56                         } });
  57
  58         } catch (e) {
  59                 exception_error("catchup_visible_articles", e);
  60         }
  61 }
  62
  63 function catchup_article(article_id, callback) {
  64         try {
  65                 var query = "?op=rpc&subop=catchupSelected" +
  66                         "&cmode=0&ids=" + article_id;
  67
  68                 new Ajax.Request("backend.php", {
  69                         parameters: query,
  70                         onComplete: function(transport) {
  71                                 if (callback) callback(transport);
  72                         } });
  73
  74         } catch (e) {
  75                 exception_error("catchup_article", e);
  76         }
  77 }
  78
  79 function set_selected_feed(feed_id) {
  80         try {
  81                 var feeds = $("feeds-content").getElementsByTagName("LI");
  82
  83                 for (var i = 0; i < feeds.length; i++) {
  84                         if (feeds[i].id == "F-" + feed_id)
  85                                 feeds[i].className = "selected";
  86                         else
  87                                 feeds[i].className = "";
  88                 }
  89
  90                 _active_feed_id = feed_id;
  91
  92         } catch (e) {
  93                 exception_error("mark_selected_feed", e);
  94         }
  95 }
  96
  97 function zoom(article_id) {
  98         try {
  99                 var elem = $('A-' + article_id);
 100
 101                 if (elem) {
 102                         var divs = elem.getElementsByTagName('DIV');
 103
 104                         for (var i = 0; i < divs.length; i++) {
 105                                 if (divs[i].className == 'excerpt')
 106                                         Element.hide(divs[i]);
 107
 108                                 if (divs[i].className == 'content')
 109                                         Element.show(divs[i]);
 110                         }
 111                 }
 112
 113                 catchup_article(article_id,
 114                         function() { update(); });
 115
 116         } catch (e) {
 117                 exception_error("zoom", e);
 118         }
 119 }
 120
 121 function load_more() {
 122         try {
 123                 viewfeed(_active_feed_id, _active_feed_offset + 10);
 124         } catch (e) {
 125                 exception_error("load_more", e);
 126         }
 127 }
 128
 129 function update() {
 130         try {
 131                 console.log('updating feeds...');
 132
 133                 window.clearTimeout(_update_timeout);
 134
 135                 new Ajax.Request("backend.php", {
 136                         parameters: "?op=rpc&subop=digest-init",
 137                         onComplete: function(transport) {
 138                                 fatal_error_check(transport);
 139                                 parse_feeds(transport);
 140                                 set_selected_feed(_active_feed_id);
 141                                 } });
 142
 143                 _update_timeout = window.setTimeout('update()', 5*1000);
 144         } catch (e) {
 145                 exception_error("update", e);
 146         }
 147 }
 148
 149 function remove_headline_entry(article_id) {
 150         try {
 151                 var elem = $('A-' + article_id);
 152
 153                 if (elem) {
 154                         elem.parentNode.removeChild(elem);
 155                 }
 156
 157         } catch (e) {
 158                 exception_error("remove_headline_entry", e);
 159         }
 160 }
 161
 162 function view(article_id, dismiss_only) {
 163         try {
 164                 remove_headline_entry(article_id);
 165
 166                 catchup_article(article_id,
 167                         function() {
 168                                 viewfeed(_active_feed_id, _active_feed_offset);
 169                                 update();
 170                         });
 171
 172                 return dismiss_only != true;
 173         } catch (e) {
 174                 exception_error("view", e);
 175         }
 176 }
 177
 178 function viewfeed(feed_id, offset) {
 179         try {
 180
 181                 if (!feed_id) feed_id = _active_feed_id;
 182
 183                 if (!offset) {
 184                         offset = 0;
 185                 } else {
 186                         offset = _active_feed_offset + offset;
 187                 }
 188
 189                 var query = "backend.php?op=rpc&subop=digest-update&feed_id=" + feed_id +
 190                                 "&offset=" + offset;
 191
 192                 new Ajax.Request("backend.php", {
 193                         parameters: query,
 194                         onComplete: function(transport) {
 195                                 fatal_error_check(transport);
 196                                 parse_headlines(transport, offset == 0);
 197                                 set_selected_feed(feed_id);
 198                                 _active_feed_offset = offset;
 199                         } });
 200
 201         } catch (e) {
 202                 exception_error("view", e);
 203         }
 204 }
 205
 206 function find_article(articles, article_id) {
 207         try {
 208                 for (var i = 0; i < articles.length; i++) {
 209                         if (articles[i].id == article_id)
 210                                 return articles[i];
 211                 }
 212
 213                 return false;
 214
 215         } catch (e) {
 216                 exception_error("find_article", e);
 217         }
 218 }
 219
 220 function find_feed(feeds, feed_id) {
 221         try {
 222                 for (var i = 0; i < feeds.length; i++) {
 223                         if (feeds[i].id == feed_id)
 224                                 return feeds[i];
 225                 }
 226
 227                 return false;
 228
 229         } catch (e) {
 230                 exception_error("find_feed", e);
 231         }
 232 }
 233
 234 function get_feed_icon(feed) {
 235         try {
 236                 if (feed.has_icon)
 237                         return 'icons/' + feed.id + '.ico';
 238
 239                 if (feed.id == -1)
 240                         return 'images/mark_set.png';
 241
 242                 if (feed.id == -2)
 243                         return 'images/pub_set.png';
 244
 245                 if (feed.id == -3)
 246                         return 'images/fresh.png';
 247
 248                 if (feed.id == -4)
 249                         return 'images/tag.png';
 250
 251                 if (feed.id < -10)
 252                         return 'images/label.png';
 253
 254                 return 'images/blank_icon.gif';
 255
 256         } catch (e) {
 257                 exception_error("get_feed_icon", e);
 258         }
 259 }
 260
 261 function add_feed_entry(feed) {
 262         try {
 263                 var icon_part = "";
 264
 265                 icon_part = "<img src='" + get_feed_icon(feed) + "'/>";
 266
 267                 var tmp_html = "<li id=\"F-"+feed.id+"\" " +
 268                                 "onmouseover=\"feed_mi(this)\" onmouseout=\"feed_mo(this)\">" +
 269                         icon_part +
 270                         "<a href=\"#\" onclick=\"viewfeed("+feed.id+")\">" + feed.title + "</a>" +
 271                         "<div class='unread-ctr'>" +
 272                                 "<img onclick=\"catchup_feed("+feed.id+")\" title=\"" +
 273                                         __("Mark as read") +
 274                                         "\" class=\"dismiss\" style='display : none' src=\"images/digest_checkbox.png\">" +
 275                                 "<span class=\"unread\">" + feed.unread + "</span>" +
 276                         "</div>" +
 277                         "</li>";
 278
 279                 $("feeds-content").innerHTML += tmp_html;
 280
 281         } catch (e) {
 282                 exception_error("add_feed_entry", e);
 283         }
 284 }
 285
 286 function add_headline_entry(article, feed) {
 287         try {
 288
 289                 var icon_part = "";
 290
 291                 icon_part = "<img class='icon' src='" + get_feed_icon(feed) + "'/>";
 292
 293                 var tmp_html = "<li id=\"A-"+article.id+"\">" +
 294                         icon_part +
 295                         "<div class='digest-check'>" +
 296                         "<img title='Set starred' onclick=\"toggleMark(this, "+article.id+")\" src='images/mark_unset.png'>" +
 297                         "<img title='Set published' onclick=\"togglePub(this, "+article.id+")\" src='images/pub_unset.png'>" +
 298                         "<img title='" + __("Mark as read") + "' onclick=\"view("+article.id+", true)\" class='digest-check' src='images/digest_checkbox.png'>" +
 299                         "</div>" +
 300                         "<a target=\"_blank\" href=\""+article.link+"\""+
 301                                 "onclick=\"return view("+article.id+")\" class='title'>" +
 302                                 article.title + "</a>" +
 303                         "<div class='body'>" +
 304                         "<div title=\"Click to expand article\" onclick=\"zoom("+article.id+")\" class='excerpt'>" +
 305                                 article.excerpt + "</div>" +
 306                         "<div style='display : none' class='content'>" +
 307                                 article.content + "</div>" +
 308                         "<div class='info'><a href=\#\" onclick=\"viewfeed("+feed.id+")\">" +
 309                                 feed.title + "</a> " + " @ " +
 310                                 new Date(article.updated * 1000) + "</div>" +
 311                         "</div></li>";
 312
 313                 $("headlines-content").innerHTML += tmp_html;
 314
 315         } catch (e) {
 316                 exception_error("add_headline_entry", e);
 317         }
 318 }
 319
 320 function expand_feeds() {
 321         try {
 322                 _feedlist_expanded = true;
 323
 324                 redraw_feedlist(last_feeds);
 325
 326         } catch (e) {
 327                 exception_error("expand_feeds", e);
 328         }
 329 }
 330
 331 function redraw_feedlist(feeds) {
 332         try {
 333
 334                 $('feeds-content').innerHTML = "";
 335
 336                 var limit = 10;
 337
 338                 if (_feedlist_expanded) limit = feeds.length;
 339
 340                 for (var i = 0; i < Math.min(limit, feeds.length); i++) {
 341                         add_feed_entry(feeds[i]);
 342                 }
 343
 344                 if (feeds.length > limit) {
 345                         $('feeds-content').innerHTML += "<li id='F-MORE-PROMPT'>" +
 346                                 "<img src='images/blank_icon.gif'>" +
 347                                 "<a href=\"#\" onclick=\"expand_feeds()\">" +
 348                                 __("%d more...").replace("%d", feeds.length-10) +
 349                                 "</a>" + "</li>";
 350                 }
 351
 352         } catch (e) {
 353                 exception_error("redraw_feedlist", e);
 354         }
 355 }
 356
 357 function parse_feeds(transport) {
 358         try {
 359
 360                 if (!transport.responseXML) return;
 361
 362                 var feeds = transport.responseXML.getElementsByTagName('feeds')[0];
 363
 364                 if (feeds) {
 365                         feeds = eval("(" + feeds.firstChild.nodeValue + ")");
 366
 367                         feeds.sort( function (a,b)
 368                                 {
 369                                         if (b.unread != a.unread)
 370                                                 return (b.unread - a.unread)
 371                                         else
 372                                                 if (a.title > b.title)
 373                                                         return 1;
 374                                                 else if (a.title < b.title)
 375                                                         return -1;
 376                                                 else
 377                                                         return 0;
 378                                 });
 379
 380                         var all_articles = find_feed(feeds, -4);
 381
 382                         update_title(all_articles.unread);
 383
 384                         last_feeds = feeds;
 385
 386                         redraw_feedlist(feeds);
 387                 }
 388
 389         } catch (e) {
 390                 exception_error("parse_feeds", e);
 391         }
 392 }
 393
 394 function parse_headlines(transport, replace) {
 395         try {
 396                 if (!transport.responseXML) return;
 397
 398                 var headlines = transport.responseXML.getElementsByTagName('headlines')[0];
 399
 400                 if (headlines) {
 401                         headlines = eval("(" + headlines.firstChild.nodeValue + ")");
 402
 403                         if (replace) $('headlines-content').innerHTML = '';
 404
 405                         var pr = $('H-MORE-PROMPT');
 406
 407                         if (pr) pr.parentNode.removeChild(pr);
 408
 409                         for (var i = 0; i < headlines.length; i++) {
 410
 411                                 if (!$('A-' + headlines[i].id)) {
 412                                         add_headline_entry(headlines[i],
 413                                                         find_feed(last_feeds, headlines[i].feed_id));
 414                                 }
 415                         }
 416
 417                         if (pr) {
 418                                 $('headlines-content').appendChild(pr);
 419                         } else {
 420                                 $('headlines-content').innerHTML += "<li id='H-MORE-PROMPT'>" +
 421                                         "<div class='body'>" +
 422                                         "<a href=\"javascript:catchup_visible_articles()\">" +
 423                                         __("Mark as read") + "</a> | " +
 424                                         "<a href=\"javascript:load_more()\">" +
 425                                         __("Load more...") + "</a>" +
 426                                         "</div></li>";
 427                         }
 428
 429                         new Effect.Appear('headlines-content');
 430                 }
 431
 432         } catch (e) {
 433                 exception_error("parse_headlines", e);
 434         }
 435 }
 436
 437 function init() {
 438         try {
 439
 440                 new Ajax.Request("backend.php", {
 441                         parameters: "backend.php?op=rpc&subop=digest-init",
 442                         onComplete: function(transport) {
 443                                 parse_feeds(transport);
 444                                 window.setTimeout('viewfeed(-4)', 100);
 445                                 _update_timeout = window.setTimeout('update()', 5*1000);
 446                                 } });
 447
 448         } catch (e) {
 449                 exception_error("digest_init", e);
 450         }
 451 }
 452
 453 function tMark_afh_off(effect) {
 454         try {
 455                 var elem = effect.effects[0].element;
 456
 457                 console.log("tMark_afh_off : " + elem.id);
 458
 459                 if (elem) {
 460                         elem.src = elem.src.replace("mark_set", "mark_unset");
 461                         elem.alt = __("Star article");
 462                         Element.show(elem);
 463                 }
 464
 465         } catch (e) {
 466                 exception_error("tMark_afh_off", e);
 467         }
 468 }
 469
 470 function tPub_afh_off(effect) {
 471         try {
 472                 var elem = effect.effects[0].element;
 473
 474                 console.log("tPub_afh_off : " + elem.id);
 475
 476                 if (elem) {
 477                         elem.src = elem.src.replace("pub_set", "pub_unset");
 478                         elem.alt = __("Publish article");
 479                         Element.show(elem);
 480                 }
 481
 482         } catch (e) {
 483                 exception_error("tPub_afh_off", e);
 484         }
 485 }
 486
 487 function toggleMark(mark_img, id) {
 488
 489         try {
 490
 491                 var query = "?op=rpc&id=" + id + "&subop=mark";
 492
 493                 query = query + "&afid=" + _active_feed_id;
 494                 query = query + "&omode=c";
 495
 496                 if (!mark_img) return;
 497
 498                 if (mark_img.src.match("mark_unset")) {
 499                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 500                         mark_img.alt = __("Unstar article");
 501                         query = query + "&mark=1";
 502                 } else {
 503                         mark_img.alt = __("Please wait...");
 504                         query = query + "&mark=0";
 505
 506                         mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 507                         mark_img.alt = __("Star article");
 508                 }
 509
 510                 new Ajax.Request("backend.php", {
 511                         parameters: query,
 512                         onComplete: function(transport) {
 513                                 //
 514                         } });
 515
 516         } catch (e) {
 517                 exception_error("toggleMark", e);
 518         }
 519 }
 520
 521 function togglePub(mark_img, id, note) {
 522
 523         try {
 524
 525                 var query = "?op=rpc&id=" + id + "&subop=publ";
 526
 527                 query = query + "&afid=" + _active_feed_id;
 528
 529                 if (note != undefined) {
 530                         query = query + "&note=" + param_escape(note);
 531                 } else {
 532                         query = query + "&note=undefined";
 533                 }
 534
 535                 query = query + "&omode=c";
 536
 537                 if (!mark_img) return;
 538
 539                 if (mark_img.src.match("pub_unset") || note != undefined) {
 540                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 541                         mark_img.alt = __("Unpublish article");
 542                         query = query + "&pub=1";
 543
 544                 } else {
 545                         mark_img.alt = __("Please wait...");
 546                         query = query + "&pub=0";
 547
 548                         mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 549                         mark_img.alt = __("Publish article");
 550                 }
 551
 552                 new Ajax.Request("backend.php", {
 553                         parameters: query,
 554                         onComplete: function(transport) {
 555                                 //
 556                         } });
 557
 558         } catch (e) {
 559                 exception_error("togglePub", e);
 560         }
 561 }
 562
 563 function fatal_error(code, msg) {
 564         try {
 565
 566                 if (code == 6) {
 567                         window.location.href = "digest.php";
 568                 } else if (code == 5) {
 569                         window.location.href = "update.php";
 570                 } else {
 571
 572                         if (msg == "") msg = "Unknown error";
 573
 574                         console.error("Fatal error: " + code + "\n" +
 575                                 msg);
 576
 577                 }
 578
 579         } catch (e) {
 580                 exception_error("fatalError", e);
 581         }
 582 }
 583
 584 function fatal_error_check(transport) {
 585         try {
 586                 if (transport.responseXML) {
 587                         var error = transport.responseXML.getElementsByTagName("error")[0];
 588
 589                         if (error) {
 590                                 var code = error.getAttribute("error-code");
 591                                 var msg = error.getAttribute("error-msg");
 592                                 if (code != 0) {
 593                                         fatal_error(code, msg);
 594                                         return false;
 595                                 }
 596                         }
 597                 }
 598         } catch (e) {
 599                 exception_error("fatal_error_check", e);
 600         }
 601         return true;
 602 }
 603
 604 function feed_mi(elem) {
 605         try {
 606                 var imgs = elem.getElementsByTagName('IMG');
 607                 var spans = elem.getElementsByTagName('SPAN');
 608
 609                 for (var i = 0; i < imgs.length; i++) {
 610                         if (imgs[i].className == "dismiss")
 611                                 Element.show(imgs[i]);
 612                 }
 613
 614                 for (var i = 0; i < spans.length; i++) {
 615                         if (spans[i].className == "unread")
 616                                 Element.hide(spans[i]);
 617                 }
 618
 619
 620         } catch (e) {
 621                 exception_error("feed_mi", e);
 622         }
 623 }
 624
 625 function feed_mo(elem) {
 626         try {
 627                 var imgs = elem.getElementsByTagName('IMG');
 628                 var spans = elem.getElementsByTagName('SPAN');
 629
 630                 for (var i = 0; i < imgs.length; i++) {
 631                         if (imgs[i].className == "dismiss")
 632                                 Element.hide(imgs[i]);
 633                 }
 634
 635                 for (var i = 0; i < spans.length; i++) {
 636                         if (spans[i].className == "unread")
 637                                 Element.show(spans[i]);
 638                 }
 639
 640         } catch (e) {
 641                 exception_error("feed_mo", e);
 642         }
 643 }
 644
 645 function update_title(unread) {
 646         try {
 647                 document.title = "Tiny Tiny RSS";
 648
 649                 if (unread > 0)
 650                         document.title += " (" + unread + ")";
 651
 652         } catch (e) {
 653                 exception_error("update_title", e);
 654         }
 655 }
 656