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 article_appear(article_id) {
   9         try {
  10                 new Effect.Appear('A-' + article_id);
  11         } catch (e) {
  12                 exception_error("article_appear", e);
  13         }
  14 }
  15
  16 function catchup_feed(feed_id, callback) {
  17         try {
  18
  19                 var fn = find_feed(last_feeds, feed_id).title;
  20
  21                 if (confirm(__("Mark all articles in %s as read?").replace("%s", fn))) {
  22
  23                         var is_cat = "";
  24
  25                         if (feed_id < 0) is_cat = "true"; // KLUDGE
  26
  27                         var query = "?op=rpc&subop=catchupFeed&feed_id=" +
  28                                 feed_id + "&is_cat=" + is_cat;
  29
  30                         new Ajax.Request("backend.php", {
  31                                 parameters: query,
  32                                 onComplete: function(transport) {
  33                                         if (callback) callback(transport);
  34
  35                                         update();
  36                                 } });
  37                 }
  38
  39         } catch (e) {
  40                 exception_error("catchup_article", e);
  41         }
  42 }
  43
  44 function catchup_visible_articles(callback) {
  45         try {
  46                 var elems = $("headlines-content").getElementsByTagName("LI");
  47                 var ids = [];
  48
  49                 for (var i = 0; i < elems.length; i++) {
  50                         if (elems[i].id && elems[i].id.match("A-")) {
  51                                 ids.push(elems[i].id.replace("A-", ""));
  52                         }
  53                 }
  54
  55                 var query = "?op=rpc&subop=catchupSelected" +
  56                         "&cmode=0&ids=" + param_escape(ids);
  57
  58                 new Ajax.Request("backend.php", {
  59                         parameters: query,
  60                         onComplete: function(transport) {
  61                                 if (callback) callback(transport);
  62
  63                                 viewfeed(_active_feed_id, 0);
  64                         } });
  65
  66         } catch (e) {
  67                 exception_error("catchup_visible_articles", e);
  68         }
  69 }
  70
  71 function catchup_article(article_id, callback) {
  72         try {
  73                 var query = "?op=rpc&subop=catchupSelected" +
  74                         "&cmode=0&ids=" + article_id;
  75
  76                 new Ajax.Request("backend.php", {
  77                         parameters: query,
  78                         onComplete: function(transport) {
  79                                 if (callback) callback(transport);
  80                         } });
  81
  82         } catch (e) {
  83                 exception_error("catchup_article", e);
  84         }
  85 }
  86
  87 function set_selected_feed(feed_id) {
  88         try {
  89                 var feeds = $("feeds-content").getElementsByTagName("LI");
  90
  91                 for (var i = 0; i < feeds.length; i++) {
  92                         if (feeds[i].id == "F-" + feed_id)
  93                                 feeds[i].className = "selected";
  94                         else
  95                                 feeds[i].className = "";
  96                 }
  97
  98                 _active_feed_id = feed_id;
  99
 100         } catch (e) {
 101                 exception_error("mark_selected_feed", e);
 102         }
 103 }
 104
 105 function zoom(article_id) {
 106         try {
 107                 var elem = $('A-' + article_id);
 108
 109                 if (elem) {
 110                         var divs = elem.getElementsByTagName('DIV');
 111
 112                         for (var i = 0; i < divs.length; i++) {
 113                                 if (divs[i].className == 'excerpt')
 114                                         Element.hide(divs[i]);
 115
 116                                 if (divs[i].className == 'content')
 117                                         Element.show(divs[i]);
 118                         }
 119                 }
 120
 121                 //catchup_article(article_id,
 122                 //      function() { update(); });
 123
 124         } catch (e) {
 125                 exception_error("zoom", e);
 126         }
 127 }
 128
 129 function load_more() {
 130         try {
 131                 viewfeed(_active_feed_id, _active_feed_offset + 10);
 132         } catch (e) {
 133                 exception_error("load_more", e);
 134         }
 135 }
 136
 137 function update() {
 138         try {
 139                 console.log('updating feeds...');
 140
 141                 window.clearTimeout(_update_timeout);
 142
 143                 new Ajax.Request("backend.php", {
 144                         parameters: "?op=rpc&subop=digest-init",
 145                         onComplete: function(transport) {
 146                                 fatal_error_check(transport);
 147                                 parse_feeds(transport);
 148                                 set_selected_feed(_active_feed_id);
 149                                 } });
 150
 151                 _update_timeout = window.setTimeout('update()', 5*1000);
 152         } catch (e) {
 153                 exception_error("update", e);
 154         }
 155 }
 156
 157 function remove_headline_entry(article_id) {
 158         try {
 159                 var elem = $('A-' + article_id);
 160
 161                 if (elem) {
 162                         elem.parentNode.removeChild(elem);
 163                 }
 164
 165         } catch (e) {
 166                 exception_error("remove_headline_entry", e);
 167         }
 168 }
 169
 170 function view(article_id, dismiss_only) {
 171         try {
 172                 remove_headline_entry(article_id);
 173
 174                 catchup_article(article_id,
 175                         function() {
 176                                 viewfeed(_active_feed_id, _active_feed_offset, false, true);
 177                                 update();
 178                         });
 179
 180                 return dismiss_only != true;
 181         } catch (e) {
 182                 exception_error("view", e);
 183         }
 184 }
 185
 186 function viewfeed(feed_id, offset, replace, no_effects) {
 187         try {
 188
 189                 if (!feed_id) feed_id = _active_feed_id;
 190
 191                 if (!offset) {
 192                         offset = 0;
 193                 } else {
 194                         offset = _active_feed_offset + offset;
 195                 }
 196
 197                 if (replace == undefined) replace = (offset == 0);
 198
 199                 var query = "backend.php?op=rpc&subop=digest-update&feed_id=" +
 200                                 param_escape(feed_id) + "&offset=" + offset;
 201
 202                 console.log(query);
 203
 204                 new Ajax.Request("backend.php", {
 205                         parameters: query,
 206                         onComplete: function(transport) {
 207                                 fatal_error_check(transport);
 208                                 parse_headlines(transport, replace, no_effects);
 209                                 set_selected_feed(feed_id);
 210                                 _active_feed_offset = offset;
 211                         } });
 212
 213         } catch (e) {
 214                 exception_error("view", e);
 215         }
 216 }
 217
 218 function find_article(articles, article_id) {
 219         try {
 220                 for (var i = 0; i < articles.length; i++) {
 221                         if (articles[i].id == article_id)
 222                                 return articles[i];
 223                 }
 224
 225                 return false;
 226
 227         } catch (e) {
 228                 exception_error("find_article", e);
 229         }
 230 }
 231
 232 function find_feed(feeds, feed_id) {
 233         try {
 234                 for (var i = 0; i < feeds.length; i++) {
 235                         if (feeds[i].id == feed_id)
 236                                 return feeds[i];
 237                 }
 238
 239                 return false;
 240
 241         } catch (e) {
 242                 exception_error("find_feed", e);
 243         }
 244 }
 245
 246 function get_feed_icon(feed) {
 247         try {
 248                 if (feed.has_icon)
 249                         return 'icons/' + feed.id + '.ico';
 250
 251                 if (feed.id == -1)
 252                         return 'images/mark_set.png';
 253
 254                 if (feed.id == -2)
 255                         return 'images/pub_set.png';
 256
 257                 if (feed.id == -3)
 258                         return 'images/fresh.png';
 259
 260                 if (feed.id == -4)
 261                         return 'images/tag.png';
 262
 263                 if (feed.id < -10)
 264                         return 'images/label.png';
 265
 266                 return 'images/blank_icon.gif';
 267
 268         } catch (e) {
 269                 exception_error("get_feed_icon", e);
 270         }
 271 }
 272
 273 function add_feed_entry(feed) {
 274         try {
 275                 var icon_part = "";
 276
 277                 icon_part = "<img src='" + get_feed_icon(feed) + "'/>";
 278
 279                 var tmp_html = "<li id=\"F-"+feed.id+"\" " +
 280                                 "onmouseover=\"feed_mi(this)\" onmouseout=\"feed_mo(this)\">" +
 281                         icon_part +
 282                         "<a href=\"#\" onclick=\"viewfeed("+feed.id+")\">" + feed.title + "</a>" +
 283                         "<div class='unread-ctr'>" +
 284                                 "<img onclick=\"catchup_feed("+feed.id+")\" title=\"" +
 285                                         __("Mark as read") +
 286                                         "\" class=\"dismiss\" style='display : none' src=\"images/digest_checkbox.png\">" +
 287                                 "<span class=\"unread\">" + feed.unread + "</span>" +
 288                         "</div>" +
 289                         "</li>";
 290
 291                 $("feeds-content").innerHTML += tmp_html;
 292
 293         } catch (e) {
 294                 exception_error("add_feed_entry", e);
 295         }
 296 }
 297
 298 function add_headline_entry(article, feed, no_effects) {
 299         try {
 300
 301                 var icon_part = "";
 302
 303                 icon_part = "<img class='icon' src='" + get_feed_icon(feed) + "'/>";
 304
 305                 var mark_part = "";
 306                 var publ_part = "";
 307
 308                 var tags_part = "";
 309
 310                 if (article.tags.length > 0) {
 311
 312                         tags_part = " " + __("in") + " ";
 313
 314                         for (var i = 0; i < Math.min(5, article.tags.length); i++) {
 315                                 tags_part += "<a href=\"#\" onclick=\"viewfeed('" +
 316                                                 article.tags[i] + "')\">" +
 317                                         article.tags[i] + "</a>, ";
 318                         }
 319
 320                         tags_part = tags_part.replace(/, $/, "");
 321                         tags_part = "<span class=\"tags\">" + tags_part + "</span>";
 322                 }
 323
 324                 if (article.marked)
 325                         mark_part = "<img title='"+ __("Unstar article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_set.png'>";
 326                 else
 327                         mark_part =     "<img title='"+__("Star article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_unset.png'>";
 328
 329                 if (article.published)
 330                         publ_part = "<img title='"+__("Unpublish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_set.png'>";
 331                 else
 332                         publ_part =     "<img title='"+__("Publish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_unset.png'>";
 333
 334                 var style = "";
 335
 336                 if (!no_effects) style = "style=\"display : none\"";
 337
 338                 var tmp_html = "<li id=\"A-"+article.id+"\" "+style+">" +
 339                         icon_part +
 340                         "<div class='digest-check'>" +
 341                         mark_part +
 342                         publ_part +
 343                         "<img title='" + __("Mark as read") + "' onclick=\"view("+article.id+", true)\" src='images/digest_checkbox.png'>" +
 344                         "</div>" +
 345                         "<a target=\"_blank\" href=\""+article.link+"\""+
 346                                 "onclick=\"return view("+article.id+")\" class='title'>" +
 347                                 article.title + "</a>" +
 348                         "<div class='body'>" +
 349                         "<div title=\""+__("Click to expand article")+"\" onclick=\"zoom("+article.id+")\" class='excerpt'>" +
 350                                 article.excerpt + "</div>" +
 351                         "<div style='display : none' class='content'>" +
 352                                 article.content + "</div>" +
 353                         "<div class='info'><a href=\#\" onclick=\"viewfeed("+feed.id+")\">" +
 354                                 feed.title + "</a> " + tags_part + " @ " +
 355                                 new Date(article.updated * 1000) + "</div>" +
 356                         "</div></li>";
 357
 358                 $("headlines-content").innerHTML += tmp_html;
 359
 360                 if (!no_effects)
 361                         window.setTimeout('article_appear(' + article.id + ')', 100);
 362
 363         } catch (e) {
 364                 exception_error("add_headline_entry", e);
 365         }
 366 }
 367
 368 function expand_feeds() {
 369         try {
 370                 _feedlist_expanded = true;
 371
 372                 redraw_feedlist(last_feeds);
 373
 374         } catch (e) {
 375                 exception_error("expand_feeds", e);
 376         }
 377 }
 378
 379 function redraw_feedlist(feeds) {
 380         try {
 381
 382                 $('feeds-content').innerHTML = "";
 383
 384                 var limit = 10;
 385
 386                 if (_feedlist_expanded) limit = feeds.length;
 387
 388                 for (var i = 0; i < Math.min(limit, feeds.length); i++) {
 389                         add_feed_entry(feeds[i]);
 390                 }
 391
 392                 if (feeds.length > limit) {
 393                         $('feeds-content').innerHTML += "<li id='F-MORE-PROMPT'>" +
 394                                 "<img src='images/blank_icon.gif'>" +
 395                                 "<a href=\"#\" onclick=\"expand_feeds()\">" +
 396                                 __("%d more...").replace("%d", feeds.length-10) +
 397                                 "</a>" + "</li>";
 398                 }
 399
 400         } catch (e) {
 401                 exception_error("redraw_feedlist", e);
 402         }
 403 }
 404
 405 function parse_feeds(transport) {
 406         try {
 407
 408                 if (!transport.responseXML) return;
 409
 410                 var feeds = transport.responseXML.getElementsByTagName('feeds')[0];
 411
 412                 if (feeds) {
 413                         feeds = eval("(" + feeds.firstChild.nodeValue + ")");
 414
 415                         feeds.sort( function (a,b)
 416                                 {
 417                                         if (b.unread != a.unread)
 418                                                 return (b.unread - a.unread)
 419                                         else
 420                                                 if (a.title > b.title)
 421                                                         return 1;
 422                                                 else if (a.title < b.title)
 423                                                         return -1;
 424                                                 else
 425                                                         return 0;
 426                                 });
 427
 428                         var all_articles = find_feed(feeds, -4);
 429
 430                         update_title(all_articles.unread);
 431
 432                         last_feeds = feeds;
 433
 434                         redraw_feedlist(feeds);
 435                 }
 436
 437         } catch (e) {
 438                 exception_error("parse_feeds", e);
 439         }
 440 }
 441
 442 function parse_headlines(transport, replace, no_effects) {
 443         try {
 444                 if (!transport.responseXML) return;
 445
 446                 var headlines = transport.responseXML.getElementsByTagName('headlines')[0];
 447                 var headlines_title = transport.responseXML.getElementsByTagName('headlines-title')[0];
 448
 449                 if (headlines && headlines_title) {
 450                         headlines = eval("(" + headlines.firstChild.nodeValue + ")");
 451
 452                         var title = headlines_title.firstChild.nodeValue;
 453
 454                         $("headlines-title").innerHTML = title;
 455
 456                         if (replace) {
 457                                 $('headlines-content').innerHTML = '';
 458                                 Element.hide('headlines-content');
 459                         }
 460
 461                         var pr = $('H-MORE-PROMPT');
 462
 463                         if (pr) pr.parentNode.removeChild(pr);
 464
 465                         var inserted = false;
 466
 467                         for (var i = 0; i < headlines.length; i++) {
 468
 469                                 if (!$('A-' + headlines[i].id)) {
 470                                         add_headline_entry(headlines[i],
 471                                                         find_feed(last_feeds, headlines[i].feed_id), !no_effects);
 472
 473                                         inserted = $("A-" + headlines[i].id);
 474                                 }
 475                         }
 476
 477                         if (pr) {
 478                                 $('headlines-content').appendChild(pr);
 479                                 if (!no_effects) new Effect.ScrollTo(inserted);
 480                         } else {
 481                                 $('headlines-content').innerHTML += "<li id='H-MORE-PROMPT'>" +
 482                                         "<div class='body'>" +
 483                                         "<a href=\"javascript:catchup_visible_articles()\">" +
 484                                         __("Mark as read") + "</a> | " +
 485                                         "<a href=\"javascript:load_more()\">" +
 486                                         __("Load more...") + "</a>" +
 487                                         "</div></li>";
 488                         }
 489
 490                         if (replace && !no_effects)
 491                                 new Effect.Appear('headlines-content', {duration : 0.3});
 492
 493                         //new Effect.Appear('headlines-content');
 494                 }
 495
 496         } catch (e) {
 497                 exception_error("parse_headlines", e);
 498         }
 499 }
 500
 501 function init() {
 502         try {
 503
 504                 new Ajax.Request("backend.php", {
 505                         parameters: "backend.php?op=rpc&subop=digest-init",
 506                         onComplete: function(transport) {
 507                                 parse_feeds(transport);
 508                                 window.setTimeout('viewfeed(-4)', 100);
 509                                 _update_timeout = window.setTimeout('update()', 5*1000);
 510                                 } });
 511
 512         } catch (e) {
 513                 exception_error("digest_init", e);
 514         }
 515 }
 516
 517 function toggle_mark(mark_img, id) {
 518
 519         try {
 520
 521                 var query = "?op=rpc&id=" + id + "&subop=mark";
 522
 523                 query = query + "&afid=" + _active_feed_id;
 524                 query = query + "&omode=c";
 525
 526                 if (!mark_img) return;
 527
 528                 if (mark_img.src.match("mark_unset")) {
 529                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 530                         mark_img.alt = __("Unstar article");
 531                         query = query + "&mark=1";
 532                 } else {
 533                         mark_img.alt = __("Please wait...");
 534                         query = query + "&mark=0";
 535
 536                         mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 537                         mark_img.alt = __("Star article");
 538                 }
 539
 540                 new Ajax.Request("backend.php", {
 541                         parameters: query,
 542                         onComplete: function(transport) {
 543                                 update();
 544                         } });
 545
 546         } catch (e) {
 547                 exception_error("toggle_mark", e);
 548         }
 549 }
 550
 551 function toggle_pub(mark_img, id, note) {
 552
 553         try {
 554
 555                 var query = "?op=rpc&id=" + id + "&subop=publ";
 556
 557                 query = query + "&afid=" + _active_feed_id;
 558
 559                 if (note != undefined) {
 560                         query = query + "&note=" + param_escape(note);
 561                 } else {
 562                         query = query + "&note=undefined";
 563                 }
 564
 565                 query = query + "&omode=c";
 566
 567                 if (!mark_img) return;
 568
 569                 if (mark_img.src.match("pub_unset") || note != undefined) {
 570                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 571                         mark_img.alt = __("Unpublish article");
 572                         query = query + "&pub=1";
 573
 574                 } else {
 575                         mark_img.alt = __("Please wait...");
 576                         query = query + "&pub=0";
 577
 578                         mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 579                         mark_img.alt = __("Publish article");
 580                 }
 581
 582                 new Ajax.Request("backend.php", {
 583                         parameters: query,
 584                         onComplete: function(transport) {
 585                                 update();
 586                         } });
 587
 588         } catch (e) {
 589                 exception_error("toggle_pub", e);
 590         }
 591 }
 592
 593 function fatal_error(code, msg) {
 594         try {
 595
 596                 if (code == 6) {
 597                         window.location.href = "digest.php";
 598                 } else if (code == 5) {
 599                         window.location.href = "update.php";
 600                 } else {
 601
 602                         if (msg == "") msg = "Unknown error";
 603
 604                         console.error("Fatal error: " + code + "\n" +
 605                                 msg);
 606
 607                 }
 608
 609         } catch (e) {
 610                 exception_error("fatalError", e);
 611         }
 612 }
 613
 614 function fatal_error_check(transport) {
 615         try {
 616                 if (transport.responseXML) {
 617                         var error = transport.responseXML.getElementsByTagName("error")[0];
 618
 619                         if (error) {
 620                                 var code = error.getAttribute("error-code");
 621                                 var msg = error.getAttribute("error-msg");
 622                                 if (code != 0) {
 623                                         fatal_error(code, msg);
 624                                         return false;
 625                                 }
 626                         }
 627                 }
 628         } catch (e) {
 629                 exception_error("fatal_error_check", e);
 630         }
 631         return true;
 632 }
 633
 634 function feed_mi(elem) {
 635         try {
 636                 var imgs = elem.getElementsByTagName('IMG');
 637                 var spans = elem.getElementsByTagName('SPAN');
 638
 639                 for (var i = 0; i < imgs.length; i++) {
 640                         if (imgs[i].className == "dismiss")
 641                                 Element.show(imgs[i]);
 642                 }
 643
 644                 for (var i = 0; i < spans.length; i++) {
 645                         if (spans[i].className == "unread")
 646                                 Element.hide(spans[i]);
 647                 }
 648
 649
 650         } catch (e) {
 651                 exception_error("feed_mi", e);
 652         }
 653 }
 654
 655 function feed_mo(elem) {
 656         try {
 657                 var imgs = elem.getElementsByTagName('IMG');
 658                 var spans = elem.getElementsByTagName('SPAN');
 659
 660                 for (var i = 0; i < imgs.length; i++) {
 661                         if (imgs[i].className == "dismiss")
 662                                 Element.hide(imgs[i]);
 663                 }
 664
 665                 for (var i = 0; i < spans.length; i++) {
 666                         if (spans[i].className == "unread")
 667                                 Element.show(spans[i]);
 668                 }
 669
 670         } catch (e) {
 671                 exception_error("feed_mo", e);
 672         }
 673 }
 674
 675 function update_title(unread) {
 676         try {
 677                 document.title = "Tiny Tiny RSS";
 678
 679                 if (unread > 0)
 680                         document.title += " (" + unread + ")";
 681
 682         } catch (e) {
 683                 exception_error("update_title", e);
 684         }
 685 }
 686