viewfeed.js

   1 var active_post_id = false;
   2 var _catchup_callback_func = false;
   3 var last_article_view = false;
   4 var active_real_feed_id = false;
   5
   6 var _tag_active_post_id = false;
   7 var _tag_active_feed_id = false;
   8 var _tag_active_cdm = false;
   9
  10 // FIXME: kludge, to restore scrollTop after tag editor terminates
  11 var _tag_cdm_scroll = false;
  12
  13 // FIXME: kludges, needs proper implementation
  14 var _reload_feedlist_after_view = false;
  15
  16 var _cdm_wd_timeout = false;
  17 var _cdm_wd_vishist = new Array();
  18
  19 function catchup_callback() {
  20         if (xmlhttp_rpc.readyState == 4) {
  21                 try {
  22                         debug("catchup_callback");
  23                         if (_catchup_callback_func) {
  24                                 setTimeout(_catchup_callback_func, 100);
  25                         }
  26                         all_counters_callback();
  27                 } catch (e) {
  28                         exception_error("catchup_callback", e);
  29                 }
  30         }
  31 }
  32
  33 function headlines_callback() {
  34         if (xmlhttp.readyState == 4) {
  35                 debug("headlines_callback");
  36                 var f = document.getElementById("headlines-frame");
  37                 try {
  38                         f.scrollTop = 0;
  39                 } catch (e) { };
  40                 f.innerHTML = xmlhttp.responseText;
  41                 update_all_counters();
  42                 if (typeof correctPNG != 'undefined') {
  43                         correctPNG();
  44                 }
  45
  46                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
  47
  48                 if (!document.getElementById("headlinesList")) {
  49                         debug("starting CDM watchdog");
  50                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
  51                         _cdm_wd_vishist = new Array();
  52                 }
  53
  54                 if (_tag_cdm_scroll) {
  55                         try {
  56                                 document.getElementById("headlinesInnerContainer").scrollTop = _tag_cdm_scroll;
  57                                 _tag_cdm_scroll = false;
  58                         } catch (e) { }
  59                 }
  60
  61                 notify("");
  62         }
  63 }
  64
  65 function article_callback() {
  66         if (xmlhttp.readyState == 4) {
  67                 debug("article_callback");
  68                 var f = document.getElementById("content-frame");
  69                 try {
  70                         f.scrollTop = 0;
  71                 } catch (e) { };
  72                 f.innerHTML = xmlhttp.responseText;
  73
  74                 var date = new Date();
  75                 last_article_view = date.getTime() / 1000;
  76
  77                 if (typeof correctPNG != 'undefined') {
  78                         correctPNG();
  79                 }
  80
  81                 if (_reload_feedlist_after_view) {
  82                         setTimeout('updateFeedList(false, false)', 50);
  83                         _reload_feedlist_after_view = false;
  84                 } else {
  85                         update_all_counters();
  86                 }
  87         }
  88 }
  89
  90 function view(id, feed_id, skip_history) {
  91
  92         try {
  93                 debug("loading article: " + id + "/" + feed_id);
  94
  95                 active_real_feed_id = feed_id;
  96
  97                 if (!skip_history) {
  98                         history_push("ARTICLE:" + id + ":" + feed_id);
  99                 }
 100
 101                 enableHotkeys();
 102
 103                 active_post_id = id;
 104                 //setActiveFeedId(feed_id);
 105
 106                 var query = "backend.php?op=view&id=" + param_escape(id) +
 107                         "&feed=" + param_escape(feed_id);
 108
 109                 var date = new Date();
 110
 111                 if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
 112                         debug("<b>xmlhttp seems to be stuck at view, aborting</b>");
 113                         xmlhttp.abort();
 114                 }
 115
 116                 if (xmlhttp_ready(xmlhttp)) {
 117
 118                         cleanSelected("headlinesList");
 119
 120                         var crow = document.getElementById("RROW-" + active_post_id);
 121                         crow.className = crow.className.replace("Unread", "");
 122
 123                         var upd_img_pic = document.getElementById("FUPDPIC-" + active_post_id);
 124
 125                         if (upd_img_pic) {
 126                                 upd_img_pic.src = "images/blank_icon.gif";
 127                         }
 128
 129                         selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 130                         markHeadline(active_post_id);
 131
 132                         xmlhttp.open("GET", query, true);
 133                         xmlhttp.onreadystatechange=article_callback;
 134                         xmlhttp.send(null);
 135                 } else {
 136                         debug("xmlhttp busy (@view)");
 137                         printLockingError();
 138                 }
 139
 140         } catch (e) {
 141                 exception_error("view", e);
 142         }
 143 }
 144
 145 function toggleMark(id) {
 146
 147         if (!xmlhttp_ready(xmlhttp_rpc)) {
 148                 printLockingError();
 149                 return;
 150         }
 151
 152         var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 153
 154         var mark_img = document.getElementById("FMARKPIC-" + id);
 155         var vfeedu = document.getElementById("FEEDU--1");
 156         var crow = document.getElementById("RROW-" + id);
 157
 158         if (mark_img.alt != "Reset mark") {
 159                 mark_img.src = "images/mark_set.png";
 160                 mark_img.alt = "Reset mark";
 161                 query = query + "&mark=1";
 162
 163                 if (vfeedu && crow.className.match("Unread")) {
 164                         vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 165                 }
 166
 167         } else {
 168                 mark_img.src = "images/mark_unset.png";
 169                 mark_img.alt = "Set mark";
 170                 query = query + "&mark=0";
 171
 172                 if (vfeedu && crow.className.match("Unread")) {
 173                         vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 174                 }
 175
 176         }
 177
 178         var vfeedctr = document.getElementById("FEEDCTR--1");
 179         var vfeedr = document.getElementById("FEEDR--1");
 180
 181         if (vfeedu && vfeedctr) {
 182                 if ((+vfeedu.innerHTML) > 0) {
 183                         if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 184                                 vfeedr.className = vfeedr.className + "Unread";
 185                                 vfeedctr.className = "odd";
 186                         }
 187                 } else {
 188                         vfeedctr.className = "invisible";
 189                         vfeedr.className = vfeedr.className.replace("Unread", "");
 190                 }
 191         }
 192
 193         debug("toggle starred for aid " + id);
 194
 195         new Ajax.Request(query);
 196
 197 }
 198
 199 function moveToPost(mode) {
 200
 201         // check for combined mode
 202         if (!document.getElementById("headlinesList"))
 203                 return;
 204
 205         var rows = getVisibleHeadlineIds();
 206
 207         var prev_id;
 208         var next_id;
 209
 210         if (!document.getElementById('RROW-' + active_post_id)) {
 211                 active_post_id = false;
 212         }
 213
 214         if (active_post_id == false) {
 215                 next_id = getFirstVisibleHeadlineId();
 216                 prev_id = getLastVisibleHeadlineId();
 217         } else {
 218                 for (var i = 0; i < rows.length; i++) {
 219                         if (rows[i] == active_post_id) {
 220                                 prev_id = rows[i-1];
 221                                 next_id = rows[i+1];
 222                         }
 223                 }
 224         }
 225
 226         if (mode == "next") {
 227                 if (next_id != undefined) {
 228                         view(next_id, getActiveFeedId());
 229                 }
 230         }
 231
 232         if (mode == "prev") {
 233                 if ( prev_id != undefined) {
 234                         view(prev_id, getActiveFeedId());
 235                 }
 236         }
 237 }
 238
 239 function toggleUnread(id, cmode) {
 240         try {
 241                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 242                         printLockingError();
 243                         return;
 244                 }
 245
 246                 var row = document.getElementById("RROW-" + id);
 247                 if (row) {
 248                         var nc = row.className;
 249                         nc = nc.replace("Unread", "");
 250                         nc = nc.replace("Selected", "");
 251
 252                         if (row.className.match("Unread")) {
 253                                 row.className = nc;
 254                         } else {
 255                                 row.className = nc + "Unread";
 256                         }
 257
 258                         if (!cmode) cmode = 2;
 259
 260                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 261                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 262
 263                         xmlhttp_rpc.open("GET", query, true);
 264                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 265                         xmlhttp_rpc.send(null);
 266
 267                 }
 268
 269
 270         } catch (e) {
 271                 exception_error("toggleUnread", e);
 272         }
 273 }
 274
 275 function selectionToggleUnread(cdm_mode, set_state, callback_func) {
 276         try {
 277                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 278                         printLockingError();
 279                         return;
 280                 }
 281
 282                 var rows;
 283
 284                 if (cdm_mode) {
 285                         rows = cdmGetSelectedArticles();
 286                 } else {
 287                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 288                 }
 289
 290                 for (i = 0; i < rows.length; i++) {
 291                         var row = document.getElementById("RROW-" + rows[i]);
 292                         if (row) {
 293                                 var nc = row.className;
 294                                 nc = nc.replace("Unread", "");
 295                                 nc = nc.replace("Selected", "");
 296
 297                                 if (row.className.match("Unread")) {
 298                                         row.className = nc + "Selected";
 299                                 } else {
 300                                         row.className = nc + "UnreadSelected";
 301                                 }
 302                         }
 303                 }
 304
 305                 if (rows.length > 0) {
 306
 307                         var cmode = "";
 308
 309                         if (set_state == undefined) {
 310                                 cmode = "2";
 311                         } else if (set_state == true) {
 312                                 cmode = "1";
 313                         } else if (set_state == false) {
 314                                 cmode = "0";
 315                         }
 316
 317                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 318                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 319
 320                         _catchup_callback_func = callback_func;
 321
 322                         xmlhttp_rpc.open("GET", query, true);
 323                         xmlhttp_rpc.onreadystatechange=catchup_callback;
 324                         xmlhttp_rpc.send(null);
 325
 326                 }
 327
 328         } catch (e) {
 329                 exception_error("selectionToggleUnread", e);
 330         }
 331 }
 332
 333 function selectionToggleMarked(cdm_mode) {
 334         try {
 335                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 336                         printLockingError();
 337                         return;
 338                 }
 339
 340                 var rows;
 341
 342                 if (cdm_mode) {
 343                         rows = cdmGetSelectedArticles();
 344                 } else {
 345                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 346                 }
 347
 348                 for (i = 0; i < rows.length; i++) {
 349                         var row = document.getElementById("RROW-" + rows[i]);
 350                         var mark_img = document.getElementById("FMARKPIC-" + rows[i]);
 351
 352                         if (row && mark_img) {
 353
 354                                 if (mark_img.alt == "Set mark") {
 355                                         mark_img.src = "images/mark_set.png";
 356                                         mark_img.alt = "Reset mark";
 357                                         mark_img.setAttribute('onclick',
 358                                                 'javascript:toggleMark('+rows[i]+', false)');
 359
 360                                 } else {
 361                                         mark_img.src = "images/mark_unset.png";
 362                                         mark_img.alt = "Set mark";
 363                                         mark_img.setAttribute('onclick',
 364                                                 'javascript:toggleMark('+rows[i]+', true)');
 365                                 }
 366                         }
 367                 }
 368
 369                 if (rows.length > 0) {
 370
 371                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 372                                 param_escape(rows.toString()) + "&cmode=2";
 373
 374                         xmlhttp_rpc.open("GET", query, true);
 375                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 376                         xmlhttp_rpc.send(null);
 377
 378                 }
 379
 380         } catch (e) {
 381                 exception_error("selectionToggleMarked", e);
 382         }
 383 }
 384
 385 function cdmGetSelectedArticles() {
 386         var sel_articles = new Array();
 387         var container = document.getElementById("headlinesInnerContainer");
 388
 389         for (i = 0; i < container.childNodes.length; i++) {
 390                 var child = container.childNodes[i];
 391
 392                 if (child.id.match("RROW-") && child.className.match("Selected")) {
 393                         var c_id = child.id.replace("RROW-", "");
 394                         sel_articles.push(c_id);
 395                 }
 396         }
 397
 398         return sel_articles;
 399 }
 400
 401 // mode = all,none,unread
 402 function cdmSelectArticles(mode) {
 403         var container = document.getElementById("headlinesInnerContainer");
 404
 405         for (i = 0; i < container.childNodes.length; i++) {
 406                 var child = container.childNodes[i];
 407
 408                 if (child.id.match("RROW-")) {
 409                         var aid = child.id.replace("RROW-", "");
 410
 411                         var cb = document.getElementById("RCHK-" + aid);
 412
 413                         if (mode == "all") {
 414                                 if (!child.className.match("Selected")) {
 415                                         child.className = child.className + "Selected";
 416                                         cb.checked = true;
 417                                 }
 418                         } else if (mode == "unread") {
 419                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
 420                                         child.className = child.className + "Selected";
 421                                         cb.checked = true;
 422                                 }
 423                         } else {
 424                                 child.className = child.className.replace("Selected", "");
 425                                 cb.checked = false;
 426                         }
 427                 }
 428         }
 429 }
 430
 431 function catchupPage() {
 432
 433         if (document.getElementById("headlinesList")) {
 434                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
 435                 selectionToggleUnread(false, false, 'viewCurrentFeed()');
 436                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 437         } else {
 438                 cdmSelectArticles('all');
 439                 selectionToggleUnread(true, false, 'viewCurrentFeed()')
 440                 cdmSelectArticles('none');
 441         }
 442 }
 443
 444 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
 445
 446         if (!xmlhttp_ready(xmlhttp_rpc)) {
 447                 printLockingError();
 448         }
 449
 450         var title = prompt("Please enter label title:", "");
 451
 452         if (title) {
 453
 454                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
 455                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
 456                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
 457                         "&title=" + param_escape(title);
 458
 459                 debug("LFS: " + query);
 460
 461                 xmlhttp_rpc.open("GET", query, true);
 462                 xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback;
 463                 xmlhttp_rpc.send(null);
 464         }
 465
 466 }
 467
 468 function editArticleTags(id, feed_id, cdm_enabled) {
 469         _tag_active_post_id = id;
 470         _tag_active_feed_id = feed_id;
 471         _tag_active_cdm = cdm_enabled;
 472         try {
 473                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
 474         } catch (e) { }
 475         displayDlg('editArticleTags', id);
 476 }
 477
 478
 479 function tag_saved_callback() {
 480         if (xmlhttp_rpc.readyState == 4) {
 481                 try {
 482                         debug("in tag_saved_callback");
 483
 484                         closeInfoBox();
 485                         notify("");
 486
 487                         if (tagsAreDisplayed()) {
 488                                 _reload_feedlist_after_view = true;
 489                         }
 490
 491                         if (!_tag_active_cdm) {
 492                                 if (active_post_id == _tag_active_post_id) {
 493                                         debug("reloading current article");
 494                                         view(_tag_active_post_id, _tag_active_feed_id);
 495                                 }
 496                         } else {
 497                                 debug("reloading current feed");
 498                                 viewCurrentFeed();
 499                         }
 500
 501                 } catch (e) {
 502                         exception_error("catchup_callback", e);
 503                 }
 504         }
 505 }
 506
 507 function editTagsSave() {
 508
 509         if (!xmlhttp_ready(xmlhttp_rpc)) {
 510                 printLockingError();
 511         }
 512
 513         notify("Saving article tags...");
 514
 515         var form = document.forms["tag_edit_form"];
 516
 517         var query = Form.serialize("tag_edit_form");
 518
 519         xmlhttp_rpc.open("GET", "backend.php?op=rpc&subop=setArticleTags&" + query, true);
 520         xmlhttp_rpc.onreadystatechange=tag_saved_callback;
 521         xmlhttp_rpc.send(null);
 522
 523 }
 524
 525 function editTagsInsert() {
 526         try {
 527
 528                 var form = document.forms["tag_edit_form"];
 529
 530                 var found_tags = form.found_tags;
 531                 var tags_str = form.tags_str;
 532
 533                 var tag = found_tags[found_tags.selectedIndex].value;
 534
 535                 if (tags_str.value.length > 0 &&
 536                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
 537
 538                         tags_str.value = tags_str.value + ", ";
 539                 }
 540
 541                 tags_str.value = tags_str.value + tag + ", ";
 542
 543                 found_tags.selectedIndex = 0;
 544
 545         } catch (e) {
 546                 exception_error(e, "editTagsInsert");
 547         }
 548 }
 549
 550 function cdmWatchdog() {
 551
 552         try {
 553
 554                 var ctr = document.getElementById("headlinesInnerContainer");
 555
 556                 if (!ctr.hasChildNodes()) return;
 557
 558                 var ids = new Array();
 559
 560                 var e = ctr.firstChild;
 561
 562                 while (e) {
 563                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
 564                                         e.id.match("RROW-")) {
 565
 566                                 // article fits in viewport OR article is longer than viewport and
 567                                 // its bottom is visible
 568
 569                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
 570                                                 ctr.scrollTop + ctr.offsetHeight) {
 571
 572 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
 573 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
 574 //                                              (ctr.scrollTop + ctr.offsetHeight));
 575
 576                                         ids.push(e.id.replace("RROW-", ""));
 577
 578                                 } else if (e.offsetHeight > ctr.offsetHeight &&
 579                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
 580                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
 581
 582                                         ids.push(e.id.replace("RROW-", ""));
 583
 584                                 }
 585
 586                         }
 587
 588                         e = e.nextSibling;
 589                 }
 590
 591                 debug("cdmWatchdog, ids= " + ids.toString());
 592
 593                 if (ids.length > 0 && xmlhttp_ready(xmlhttp_rpc)) {
 594
 595                         for (var i = 0; i < ids.length; i++) {
 596                                 var e = document.getElementById("RROW-" + ids[i]);
 597                                 if (e) {
 598                                         e.className = e.className.replace("Unread", "");
 599                                 }
 600                         }
 601
 602                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 603                                 param_escape(ids.toString()) + "&cmode=0";
 604
 605                         xmlhttp_rpc.open("GET", query, true);
 606                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 607                         xmlhttp_rpc.send(null);
 608
 609                 }
 610
 611                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 612
 613         } catch (e) {
 614                 exception_error(e, "cdmWatchdog");
 615         }
 616
 617 }