src/main/resources/static/javascript/sone.js

   1 /* Sone JavaScript functions. */
   2
   3 function ajaxGet(url, data, successCallback, errorCallback) {
   4         (function(url, data, successCallback, errorCallback) {
   5                 $.ajax({"type": "GET", "url": url, "data": data, "dataType": "json", "success": function(data, textStatus, xmlHttpRequest) {
   6                         ajaxSuccess();
   7                         if (typeof successCallback != "undefined") {
   8                                 successCallback(data, textStatus);
   9                         }
  10                 }, "error": function(xmlHttpRequest, textStatus, errorThrown) {
  11                         if (typeof errorCallback != "undefined") {
  12                                 errorCallback();
  13                         } else {
  14                                 ajaxError();
  15                         }
  16                 }});
  17         })(url, data, successCallback, errorCallback);
  18 }
  19
  20 function registerInputTextareaSwap(inputElement, defaultText, inputFieldName, optional, dontUseTextarea) {
  21         $(inputElement).each(function() {
  22                 textarea = $(dontUseTextarea ? "<input type=\"text\" name=\"" + inputFieldName + "\">" : "<textarea name=\"" + inputFieldName + "\"></textarea>").blur(function() {
  23                         if ($(this).val() == "") {
  24                                 $(this).hide();
  25                                 inputField = $(this).data("inputField");
  26                                 inputField.show().removeAttr("disabled").addClass("default");
  27                                 inputField.val(defaultText);
  28                         }
  29                 }).hide().data("inputField", $(this)).val($(this).val());
  30                 $(this).data("textarea", textarea).after(textarea);
  31                 (function(inputField, textarea) {
  32                         inputField.focus(function() {
  33                                 $(this).hide().attr("disabled", "disabled");
  34                                 /* no, show(), “display: block” is not what I need. */
  35                                 textarea.attr("style", "display: inline").focus();
  36                         });
  37                         if (inputField.val() == "") {
  38                                 inputField.addClass("default");
  39                                 inputField.val(defaultText);
  40                         } else {
  41                                 inputField.hide().attr("disabled", "disabled");
  42                                 textarea.show();
  43                         }
  44                         $(inputField.get(0).form).submit(function() {
  45                                 inputField.attr("disabled", "disabled");
  46                                 if (!optional && (textarea.val() == "")) {
  47                                         inputField.removeAttr("disabled").focus();
  48                                         return false;
  49                                 }
  50                         });
  51                 })($(this), textarea);
  52         });
  53 }
  54
  55 /**
  56  * Adds a “comment” link to all status lines contained in the given element.
  57  *
  58  * @param postId
  59  *            The ID of the post
  60  * @param element
  61  *            The element to add a “comment” link to
  62  */
  63 function addCommentLink(postId, author, element, insertAfterThisElement) {
  64         if (($(element).find(".show-reply-form").length > 0) || (getPostElement(element).find(".create-reply").length == 0)) {
  65                 return;
  66         }
  67         commentElement = (function(postId, author) {
  68                 separator = $("<span> · </span>").addClass("separator");
  69                 var commentElement = $("<div><span>Comment</span></div>").addClass("show-reply-form").click(function() {
  70                         replyElement = $("#sone .post#" + postId + " .create-reply");
  71                         replyElement.removeClass("hidden");
  72                         replyElement.removeClass("light");
  73                         (function(replyElement) {
  74                                 replyElement.find("input.reply-input").blur(function() {
  75                                         if ($(this).hasClass("default")) {
  76                                                 replyElement.addClass("light");
  77                                         }
  78                                 }).focus(function() {
  79                                         replyElement.removeClass("light");
  80                                 });
  81                         })(replyElement);
  82                         textArea = replyElement.find("input.reply-input").focus().data("textarea");
  83                         textArea.val(textArea.val() + "@sone://" + author + " ");
  84                 });
  85                 return commentElement;
  86         })(postId, author);
  87         $(insertAfterThisElement).after(commentElement.clone(true));
  88         $(insertAfterThisElement).after(separator);
  89 }
  90
  91 var translations = {};
  92
  93 /**
  94  * Retrieves the translation for the given key and calls the callback function.
  95  * The callback function takes a single parameter, the translated string.
  96  *
  97  * @param key
  98  *            The key of the translation string
  99  * @param callback
 100  *            The callback function
 101  */
 102 function getTranslation(key, callback) {
 103         if (key in translations) {
 104                 callback(translations[key]);
 105                 return;
 106         }
 107         ajaxGet("getTranslation.ajax", {"key": key}, function(data, textStatus) {
 108                 if ((data != null) && data.success) {
 109                         translations[key] = data.value;
 110                         callback(data.value);
 111                 }
 112         });
 113 }
 114
 115 /**
 116  * Filters the given Sone ID, replacing all “~” characters by an underscore.
 117  *
 118  * @param soneId
 119  *            The Sone ID to filter
 120  * @returns The filtered Sone ID
 121  */
 122 function filterSoneId(soneId) {
 123         return soneId.replace(/[^a-zA-Z0-9-]/g, "_");
 124 }
 125
 126 /**
 127  * Updates the status of the given Sone.
 128  *
 129  * @param soneId
 130  *            The ID of the Sone to update
 131  * @param status
 132  *            The status of the Sone (“idle”, “unknown”, “inserting”,
 133  *            “downloading”)
 134  * @param modified
 135  *            Whether the Sone is modified
 136  * @param locked
 137  *            Whether the Sone is locked
 138  * @param lastUpdated
 139  *            The date and time of the last update (formatted for display)
 140  */
 141 function updateSoneStatus(soneId, name, status, modified, locked, lastUpdated, lastUpdatedText) {
 142         $("#sone .sone." + filterSoneId(soneId)).
 143                 toggleClass("unknown", status == "unknown").
 144                 toggleClass("idle", status == "idle").
 145                 toggleClass("inserting", status == "inserting").
 146                 toggleClass("downloading", status == "downloading").
 147                 toggleClass("modified", modified);
 148         $("#sone .sone." + filterSoneId(soneId) + " .lock").toggleClass("hidden", locked);
 149         $("#sone .sone." + filterSoneId(soneId) + " .unlock").toggleClass("hidden", !locked);
 150         if (lastUpdated != null) {
 151                 $("#sone .sone." + filterSoneId(soneId) + " .last-update span.time").attr("title", lastUpdated).text(lastUpdatedText);
 152         } else {
 153                 getTranslation("View.Sone.Text.UnknownDate", function(unknown) {
 154                         $("#sone .sone." + filterSoneId(soneId) + " .last-update span.time").text(unknown);
 155                 });
 156         }
 157         $("#sone .sone." + filterSoneId(soneId) + " .profile-link a").text(name);
 158 }
 159
 160 /**
 161  * Enhances a “delete” button so that the confirmation is done on the same page.
 162  *
 163  * @param button
 164  *            The button element
 165  * @param text
 166  *            The text to show on the button
 167  * @param deleteCallback
 168  *            The callback that actually deletes something
 169  */
 170 function enhanceDeleteButton(button, text, deleteCallback) {
 171         (function(button) {
 172                 newButton = $("<button></button>").addClass("confirm").hide().text(text).click(function() {
 173                         $(this).fadeOut("slow");
 174                         deleteCallback();
 175                         return false;
 176                 }).insertAfter(button);
 177                 (function(button, newButton) {
 178                         button.click(function() {
 179                                 button.fadeOut("slow", function() {
 180                                         newButton.fadeIn("slow");
 181                                         $(document).one("click", function() {
 182                                                 if (this != newButton.get(0)) {
 183                                                         newButton.fadeOut(function() {
 184                                                                 button.fadeIn();
 185                                                         });
 186                                                 }
 187                                         });
 188                                 });
 189                                 return false;
 190                         });
 191                 })(button, newButton);
 192         })($(button));
 193 }
 194
 195 /**
 196  * Enhances a post’s “delete” button.
 197  *
 198  * @param button
 199  *            The button element
 200  * @param postId
 201  *            The ID of the post to delete
 202  * @param text
 203  *            The text to replace the button with
 204  */
 205 function enhanceDeletePostButton(button, postId, text) {
 206         enhanceDeleteButton(button, text, function() {
 207                 ajaxGet("deletePost.ajax", { "post": postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 208                         if (data == null) {
 209                                 return;
 210                         }
 211                         if (data.success) {
 212                                 $("#sone .post#" + postId).slideUp();
 213                         } else if (data.error == "invalid-post-id") {
 214                                 /* pretend the post is already gone. */
 215                                 getPost(postId).slideUp();
 216                         } else if (data.error == "auth-required") {
 217                                 alert("You need to be logged in.");
 218                         } else if (data.error == "not-authorized") {
 219                                 alert("You are not allowed to delete this post.");
 220                         }
 221                 }, function(xmlHttpRequest, textStatus, error) {
 222                         /* ignore error. */
 223                 });
 224         });
 225 }
 226
 227 /**
 228  * Enhances a reply’s “delete” button.
 229  *
 230  * @param button
 231  *            The button element
 232  * @param replyId
 233  *            The ID of the reply to delete
 234  * @param text
 235  *            The text to replace the button with
 236  */
 237 function enhanceDeleteReplyButton(button, replyId, text) {
 238         enhanceDeleteButton(button, text, function() {
 239                 ajaxGet("deleteReply.ajax", { "reply": replyId, "formPassword": $("#sone #formPassword").text() }, function(data, textStatus) {
 240                         if (data == null) {
 241                                 return;
 242                         }
 243                         if (data.success) {
 244                                 $("#sone .reply#" + replyId).slideUp();
 245                         } else if (data.error == "invalid-reply-id") {
 246                                 /* pretend the reply is already gone. */
 247                                 getReply(replyId).slideUp();
 248                         } else if (data.error == "auth-required") {
 249                                 alert("You need to be logged in.");
 250                         } else if (data.error == "not-authorized") {
 251                                 alert("You are not allowed to delete this reply.");
 252                         }
 253                 }, function(xmlHttpRequest, textStatus, error) {
 254                         /* ignore error. */
 255                 });
 256         });
 257 }
 258
 259 function getFormPassword() {
 260         return $("#sone #formPassword").text();
 261 }
 262
 263 /**
 264  * Returns the element of the Sone with the given ID.
 265  *
 266  * @param soneId
 267  *            The ID of the Sone
 268  * @returns All Sone elements with the given ID
 269  */
 270 function getSone(soneId) {
 271         return $("#sone .sone").filter(function(index) {
 272                 return $(".id", this).text() == soneId;
 273         });
 274 }
 275
 276 function getSoneElement(element) {
 277         return $(element).closest(".sone");
 278 }
 279
 280 /**
 281  * Generates a list of Sones by concatening the names of the given sones with a
 282  * new line character (“\n”).
 283  *
 284  * @param sones
 285  *            The sones to format
 286  * @returns {String} The created string
 287  */
 288 function generateSoneList(sones) {
 289         var soneList = "";
 290         $.each(sones, function() {
 291                 if (soneList != "") {
 292                         soneList += ", ";
 293                 }
 294                 soneList += this.name;
 295         });
 296         return soneList;
 297 }
 298
 299 /**
 300  * Returns the ID of the Sone that this element belongs to.
 301  *
 302  * @param element
 303  *            The element to locate the matching Sone ID for
 304  * @returns The ID of the Sone, or undefined
 305  */
 306 function getSoneId(element) {
 307         return getSoneElement(element).find(".id").text();
 308 }
 309
 310 /**
 311  * Returns the element of the post with the given ID.
 312  *
 313  * @param postId
 314  *            The ID of the post
 315  * @returns The element of the post
 316  */
 317 function getPost(postId) {
 318         return $("#sone .post#" + postId);
 319 }
 320
 321 function getPostElement(element) {
 322         return $(element).closest(".post");
 323 }
 324
 325 function getPostId(element) {
 326         return getPostElement(element).attr("id");
 327 }
 328
 329 function getPostTime(element) {
 330         return getPostElement(element).find(".post-time").text();
 331 }
 332
 333 /**
 334  * Returns the author of the post the given element belongs to.
 335  *
 336  * @param element
 337  *            The element whose post to get the author for
 338  * @returns The ID of the authoring Sone
 339  */
 340 function getPostAuthor(element) {
 341         return getPostElement(element).find(".post-author").text();
 342 }
 343
 344 /**
 345  * Returns the element of the reply with the given ID.
 346  *
 347  * @param replyId
 348  *            The ID of the reply
 349  * @returns The element of the reply
 350  */
 351 function getReply(replyId) {
 352         return $("#sone .reply#" + replyId);
 353 }
 354
 355 function getReplyElement(element) {
 356         return $(element).closest(".reply");
 357 }
 358
 359 function getReplyId(element) {
 360         return getReplyElement(element).attr("id");
 361 }
 362
 363 function getReplyTime(element) {
 364         return getReplyElement(element).find(".reply-time").text();
 365 }
 366
 367 /**
 368  * Returns the author of the reply the given element belongs to.
 369  *
 370  * @param element
 371  *            The element whose reply to get the author for
 372  * @returns The ID of the authoring Sone
 373  */
 374 function getReplyAuthor(element) {
 375         return getReplyElement(element).find(".reply-author").text();
 376 }
 377
 378 /**
 379  * Returns the notification with the given ID.
 380  *
 381  * @param notificationId
 382  *            The ID of the notification
 383  * @returns The notification element
 384  */
 385 function getNotification(notificationId) {
 386         return $("#sone #notification-area .notification#" + notificationId);
 387 }
 388
 389 /**
 390  * Returns the notification element closest to the given element.
 391  *
 392  * @param element
 393  *            The element to get the closest notification of
 394  * @return The closest notification element
 395  */
 396 function getNotificationElement(element) {
 397         return $(element).closest(".notification");
 398 }
 399
 400 /**
 401  * Returns the ID of the notification element.
 402  *
 403  * @param notificationElement
 404  *            The notification element
 405  * @returns The ID of the notification
 406  */
 407 function getNotificationId(notificationElement) {
 408         return $(notificationElement).attr("id");
 409 }
 410
 411 /**
 412  * Returns the time the notification was last updated.
 413  *
 414  * @param notificationElement
 415  *            The notification element
 416  * @returns The last update time of the notification
 417  */
 418 function getNotificationLastUpdatedTime(notificationElement) {
 419         return $(notificationElement).attr("lastUpdatedTime");
 420 }
 421
 422 function likePost(postId) {
 423         ajaxGet("like.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 424                 if ((data == null) || !data.success) {
 425                         return;
 426                 }
 427                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").addClass("hidden");
 428                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").removeClass("hidden");
 429                 updatePostLikes(postId);
 430         }, function(xmlHttpRequest, textStatus, error) {
 431                 /* ignore error. */
 432         });
 433 }
 434
 435 function unlikePost(postId) {
 436         ajaxGet("unlike.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 437                 if ((data == null) || !data.success) {
 438                         return;
 439                 }
 440                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").addClass("hidden");
 441                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").removeClass("hidden");
 442                 updatePostLikes(postId);
 443         }, function(xmlHttpRequest, textStatus, error) {
 444                 /* ignore error. */
 445         });
 446 }
 447
 448 function updatePostLikes(postId) {
 449         ajaxGet("getLikes.ajax", { "type": "post", "post": postId }, function(data, textStatus) {
 450                 if ((data != null) && data.success) {
 451                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes").toggleClass("hidden", data.likes == 0);
 452                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes span.like-count").text(data.likes);
 453                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes > span").attr("title", generateSoneList(data.sones));
 454                 }
 455         }, function(xmlHttpRequest, textStatus, error) {
 456                 /* ignore error. */
 457         });
 458 }
 459
 460 function likeReply(replyId) {
 461         ajaxGet("like.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
 462                 if ((data == null) || !data.success) {
 463                         return;
 464                 }
 465                 $("#sone .reply#" + replyId + " .status-line .like").addClass("hidden");
 466                 $("#sone .reply#" + replyId + " .status-line .unlike").removeClass("hidden");
 467                 updateReplyLikes(replyId);
 468         }, function(xmlHttpRequest, textStatus, error) {
 469                 /* ignore error. */
 470         });
 471 }
 472
 473 function unlikeReply(replyId) {
 474         ajaxGet("unlike.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
 475                 if ((data == null) || !data.success) {
 476                         return;
 477                 }
 478                 $("#sone .reply#" + replyId + " .status-line .unlike").addClass("hidden");
 479                 $("#sone .reply#" + replyId + " .status-line .like").removeClass("hidden");
 480                 updateReplyLikes(replyId);
 481         }, function(xmlHttpRequest, textStatus, error) {
 482                 /* ignore error. */
 483         });
 484 }
 485
 486 /**
 487  * Trusts the Sone with the given ID.
 488  *
 489  * @param soneId
 490  *            The ID of the Sone to trust
 491  */
 492 function trustSone(soneId) {
 493         ajaxGet("trustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 494                 if ((data != null) && data.success) {
 495                         updateTrustControls(soneId, data.trustValue);
 496                 }
 497         });
 498 }
 499
 500 /**
 501  * Distrusts the Sone with the given ID, i.e. assigns a negative trust value.
 502  *
 503  * @param soneId
 504  *            The ID of the Sone to distrust
 505  */
 506 function distrustSone(soneId) {
 507         ajaxGet("distrustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 508                 if ((data != null) && data.success) {
 509                         updateTrustControls(soneId, data.trustValue);
 510                 }
 511         });
 512 }
 513
 514 /**
 515  * Untrusts the Sone with the given ID, i.e. removes any trust assignment.
 516  *
 517  * @param soneId
 518  *            The ID of the Sone to untrust
 519  */
 520 function untrustSone(soneId) {
 521         ajaxGet("untrustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 522                 if ((data != null) && data.success) {
 523                         updateTrustControls(soneId, data.trustValue);
 524                 }
 525         });
 526 }
 527
 528 /**
 529  * Updates the trust controls for all posts and replies of the given Sone,
 530  * according to the given trust value.
 531  *
 532  * @param soneId
 533  *            The ID of the Sone to update all trust controls for
 534  * @param trustValue
 535  *            The trust value for the Sone
 536  */
 537 function updateTrustControls(soneId, trustValue) {
 538         $("#sone .post").each(function() {
 539                 if (getPostAuthor(this) == soneId) {
 540                         getPostElement(this).find(".post-trust").toggleClass("hidden", trustValue != null);
 541                         getPostElement(this).find(".post-distrust").toggleClass("hidden", trustValue != null);
 542                         getPostElement(this).find(".post-untrust").toggleClass("hidden", trustValue == null);
 543                 }
 544         });
 545         $("#sone .reply").each(function() {
 546                 if (getReplyAuthor(this) == soneId) {
 547                         getReplyElement(this).find(".reply-trust").toggleClass("hidden", trustValue != null);
 548                         getReplyElement(this).find(".reply-distrust").toggleClass("hidden", trustValue != null);
 549                         getReplyElement(this).find(".reply-untrust").toggleClass("hidden", trustValue == null);
 550                 }
 551         });
 552 }
 553
 554 /**
 555  * Bookmarks the post with the given ID.
 556  *
 557  * @param postId
 558  *            The ID of the post to bookmark
 559  */
 560 function bookmarkPost(postId) {
 561         (function(postId) {
 562                 ajaxGet("bookmark.ajax", {"formPassword": getFormPassword(), "type": "post", "post": postId}, function(data, textStatus) {
 563                         if ((data != null) && data.success) {
 564                                 getPost(postId).find(".bookmark").toggleClass("hidden", true);
 565                                 getPost(postId).find(".unbookmark").toggleClass("hidden", false);
 566                         }
 567                 });
 568         })(postId);
 569 }
 570
 571 /**
 572  * Unbookmarks the post with the given ID.
 573  *
 574  * @param postId
 575  *            The ID of the post to unbookmark
 576  */
 577 function unbookmarkPost(postId) {
 578         ajaxGet("unbookmark.ajax", {"formPassword": getFormPassword(), "type": "post", "post": postId}, function(data, textStatus) {
 579                 if ((data != null) && data.success) {
 580                         getPost(postId).find(".bookmark").toggleClass("hidden", false);
 581                         getPost(postId).find(".unbookmark").toggleClass("hidden", true);
 582                 }
 583         });
 584 }
 585
 586 function updateReplyLikes(replyId) {
 587         ajaxGet("getLikes.ajax", { "type": "reply", "reply": replyId }, function(data, textStatus) {
 588                 if ((data != null) && data.success) {
 589                         $("#sone .reply#" + replyId + " .status-line .likes").toggleClass("hidden", data.likes == 0);
 590                         $("#sone .reply#" + replyId + " .status-line .likes span.like-count").text(data.likes);
 591                         $("#sone .reply#" + replyId + " .status-line .likes > span").attr("title", generateSoneList(data.sones));
 592                 }
 593         }, function(xmlHttpRequest, textStatus, error) {
 594                 /* ignore error. */
 595         });
 596 }
 597
 598 /**
 599  * Posts a reply and calls the given callback when the request finishes.
 600  *
 601  * @param sender
 602  *            The ID of the sender
 603  * @param postId
 604  *            The ID of the post the reply refers to
 605  * @param text
 606  *            The text to post
 607  * @param callbackFunction
 608  *            The callback function to call when the request finishes (takes 3
 609  *            parameters: success, error, replyId)
 610  */
 611 function postReply(sender, postId, text, callbackFunction) {
 612         ajaxGet("createReply.ajax", { "formPassword" : getFormPassword(), "sender": sender, "post" : postId, "text": text }, function(data, textStatus) {
 613                 if (data == null) {
 614                         /* TODO - show error */
 615                         return;
 616                 }
 617                 if (data.success) {
 618                         callbackFunction(true, null, data.reply, data.sone);
 619                 } else {
 620                         callbackFunction(false, data.error);
 621                 }
 622         }, function(xmlHttpRequest, textStatus, error) {
 623                 /* ignore error. */
 624         });
 625 }
 626
 627 /**
 628  * Ajaxifies the given Sone by enhancing all eligible elements with AJAX.
 629  *
 630  * @param soneElement
 631  *            The Sone to ajaxify
 632  */
 633 function ajaxifySone(soneElement) {
 634         /*
 635          * convert all “follow”, “unfollow”, “lock”, and “unlock” links to something
 636          * nicer.
 637          */
 638         $(".follow", soneElement).submit(function() {
 639                 var followElement = this;
 640                 ajaxGet("followSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
 641                         $(followElement).addClass("hidden");
 642                         $(followElement).parent().find(".unfollow").removeClass("hidden");
 643                 });
 644                 return false;
 645         });
 646         $(".unfollow", soneElement).submit(function() {
 647                 var unfollowElement = this;
 648                 ajaxGet("unfollowSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
 649                         $(unfollowElement).addClass("hidden");
 650                         $(unfollowElement).parent().find(".follow").removeClass("hidden");
 651                 });
 652                 return false;
 653         });
 654         $(".lock", soneElement).submit(function() {
 655                 var lockElement = this;
 656                 ajaxGet("lockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
 657                         $(lockElement).addClass("hidden");
 658                         $(lockElement).parent().find(".unlock").removeClass("hidden");
 659                 });
 660                 return false;
 661         });
 662         $(".unlock", soneElement).submit(function() {
 663                 var unlockElement = this;
 664                 ajaxGet("unlockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
 665                         $(unlockElement).addClass("hidden");
 666                         $(unlockElement).parent().find(".lock").removeClass("hidden");
 667                 });
 668                 return false;
 669         });
 670
 671         /* mark Sone as known when clicking it. */
 672         $(soneElement).click(function() {
 673                 markSoneAsKnown(this);
 674         });
 675 }
 676
 677 /**
 678  * Ajaxifies the given post by enhancing all eligible elements with AJAX.
 679  *
 680  * @param postElement
 681  *            The post element to ajaxify
 682  */
 683 function ajaxifyPost(postElement) {
 684         $(postElement).find("form").submit(function() {
 685                 return false;
 686         });
 687         $(postElement).find(".create-reply button:submit").click(function() {
 688                 button = $(this);
 689                 button.attr("disabled", "disabled");
 690                 sender = $(this.form).find(":input[name=sender]").val();
 691                 inputField = $(this.form).find(":input[name=text]:enabled").get(0);
 692                 postId = getPostId(this);
 693                 text = $(inputField).val();
 694                 (function(sender, postId, text, inputField) {
 695                         postReply(sender, postId, text, function(success, error, replyId, soneId) {
 696                                 if (success) {
 697                                         $(inputField).val("");
 698                                         loadNewReply(replyId, soneId, postId);
 699                                         $("#sone .post#" + postId + " .create-reply").addClass("hidden");
 700                                         $("#sone .post#" + postId + " .create-reply .sender").hide();
 701                                         $("#sone .post#" + postId + " .create-reply .select-sender").show();
 702                                         $("#sone .post#" + postId + " .create-reply :input[name=sender]").val(getCurrentSoneId());
 703                                 } else {
 704                                         alert(error);
 705                                 }
 706                                 button.removeAttr("disabled");
 707                         });
 708                 })(sender, postId, text, inputField);
 709                 return false;
 710         });
 711
 712         /* replace all “delete” buttons with javascript. */
 713         (function(postElement) {
 714                 getTranslation("WebInterface.Confirmation.DeletePostButton", function(deletePostText) {
 715                         postId = getPostId(postElement);
 716                         enhanceDeletePostButton($(postElement).find(".delete-post button"), postId, deletePostText);
 717                 });
 718         })(postElement);
 719
 720         /* convert all “like” buttons to javascript functions. */
 721         $(postElement).find(".like-post").submit(function() {
 722                 likePost(getPostId(this));
 723                 return false;
 724         });
 725         $(postElement).find(".unlike-post").submit(function() {
 726                 unlikePost(getPostId(this));
 727                 return false;
 728         });
 729
 730         /* convert trust control buttons to javascript functions. */
 731         $(postElement).find(".post-trust").submit(function() {
 732                 trustSone(getPostAuthor(this));
 733                 return false;
 734         });
 735         $(postElement).find(".post-distrust").submit(function() {
 736                 distrustSone(getPostAuthor(this));
 737                 return false;
 738         });
 739         $(postElement).find(".post-untrust").submit(function() {
 740                 untrustSone(getPostAuthor(this));
 741                 return false;
 742         });
 743
 744         /* convert bookmark/unbookmark buttons to javascript functions. */
 745         $(postElement).find(".bookmark").submit(function() {
 746                 bookmarkPost(getPostId(this));
 747                 return false;
 748         });
 749         $(postElement).find(".unbookmark").submit(function() {
 750                 unbookmarkPost(getPostId(this));
 751                 return false;
 752         });
 753
 754         /* convert “show source” link into javascript function. */
 755         $(postElement).find(".show-source").each(function() {
 756                 $("a", this).click(function() {
 757                         $(".post-text.text", getPostElement(this)).toggleClass("hidden");
 758                         $(".post-text.raw-text", getPostElement(this)).toggleClass("hidden");
 759                         return false;
 760                 });
 761         });
 762
 763         /* add “comment” link. */
 764         addCommentLink(getPostId(postElement), getPostAuthor(postElement), postElement, $(postElement).find(".post-status-line .permalink-author"));
 765
 766         /* process all replies. */
 767         replyIds = [];
 768         $(postElement).find(".reply").each(function() {
 769                 replyIds.push(getReplyId(this));
 770                 ajaxifyReply(this);
 771         });
 772         updateReplyTimes(replyIds.join(","));
 773
 774         /* process reply input fields. */
 775         getTranslation("WebInterface.DefaultText.Reply", function(text) {
 776                 $(postElement).find("input.reply-input").each(function() {
 777                         registerInputTextareaSwap(this, text, "text", false, false);
 778                 });
 779         });
 780
 781         /* process sender selection. */
 782         $(".select-sender", postElement).css("display", "inline");
 783         $(".sender", postElement).hide();
 784         $(".select-sender button", postElement).click(function() {
 785                 $(".sender", postElement).show();
 786                 $(".select-sender", postElement).hide();
 787                 return false;
 788         });
 789
 790         /* mark everything as known on click. */
 791         $(postElement).click(function(event) {
 792                 if ($(event.target).hasClass("click-to-show")) {
 793                         return false;
 794                 }
 795                 markPostAsKnown(this);
 796         });
 797
 798         /* hide reply input field. */
 799         $(postElement).find(".create-reply").addClass("hidden");
 800 }
 801
 802 /**
 803  * Ajaxifies the given reply element.
 804  *
 805  * @param replyElement
 806  *            The reply element to ajaxify
 807  */
 808 function ajaxifyReply(replyElement) {
 809         $(replyElement).find(".like-reply").submit(function() {
 810                 likeReply(getReplyId(this));
 811                 return false;
 812         });
 813         $(replyElement).find(".unlike-reply").submit(function() {
 814                 unlikeReply(getReplyId(this));
 815                 return false;
 816         });
 817         (function(replyElement) {
 818                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(deleteReplyText) {
 819                         $(replyElement).find(".delete-reply button").each(function() {
 820                                 enhanceDeleteReplyButton(this, getReplyId(replyElement), deleteReplyText);
 821                         });
 822                 });
 823         })(replyElement);
 824         addCommentLink(getPostId(replyElement), getReplyAuthor(replyElement), replyElement, $(replyElement).find(".reply-status-line .permalink-author"));
 825
 826         /* convert “show source” link into javascript function. */
 827         $(replyElement).find(".show-reply-source").each(function() {
 828                 $("a", this).click(function() {
 829                         $(".reply-text.text", getReplyElement(this)).toggleClass("hidden");
 830                         $(".reply-text.raw-text", getReplyElement(this)).toggleClass("hidden");
 831                         return false;
 832                 });
 833         });
 834
 835         /* convert trust control buttons to javascript functions. */
 836         $(replyElement).find(".reply-trust").submit(function() {
 837                 trustSone(getReplyAuthor(this));
 838                 return false;
 839         });
 840         $(replyElement).find(".reply-distrust").submit(function() {
 841                 distrustSone(getReplyAuthor(this));
 842                 return false;
 843         });
 844         $(replyElement).find(".reply-untrust").submit(function() {
 845                 untrustSone(getReplyAuthor(this));
 846                 return false;
 847         });
 848 }
 849
 850 /**
 851  * Ajaxifies the given notification by replacing the form with AJAX.
 852  *
 853  * @param notification
 854  *            jQuery object representing the notification.
 855  */
 856 function ajaxifyNotification(notification) {
 857         notification.find("form").submit(function() {
 858                 return false;
 859         });
 860         notification.find("input[name=returnPage]").val($.url.attr("relative"));
 861         if (notification.find(".short-text").length > 0) {
 862                 notification.find(".short-text").removeClass("hidden");
 863                 notification.find(".text").addClass("hidden");
 864         }
 865         notification.find("form.mark-as-read button").click(function() {
 866                 ajaxGet("markAsKnown.ajax", {"formPassword": getFormPassword(), "type": $(":input[name=type]", this.form).val(), "id": $(":input[name=id]", this.form).val()});
 867         });
 868         notification.find("a[class^='link-']").each(function() {
 869                 linkElement = $(this);
 870                 if (linkElement.is("[href^='viewPost']")) {
 871                         id = linkElement.attr("class").substr(5);
 872                         if (hasPost(id)) {
 873                                 linkElement.attr("href", "#post-" + id).addClass("in-page-link");
 874                         }
 875                 }
 876         });
 877         notification.find("form.dismiss button").click(function() {
 878                 ajaxGet("dismissNotification.ajax", { "formPassword" : getFormPassword(), "notification" : notification.attr("id") }, function(data, textStatus) {
 879                         /* dismiss in case of error, too. */
 880                         notification.slideUp();
 881                 }, function(xmlHttpRequest, textStatus, error) {
 882                         /* ignore error. */
 883                 });
 884         });
 885         return notification;
 886 }
 887
 888 /**
 889  * Retrieves element IDs from notification elements.
 890  *
 891  * @param notification
 892  *            The notification element
 893  * @param selector
 894  *            The selector of the element containing the ID as text
 895  * @returns All extracted IDs
 896  */
 897 function getElementIds(notification, selector) {
 898         elementIds = [];
 899         $(selector, notification).each(function() {
 900                 elementIds.push($(this).text());
 901         });
 902         return elementIds;
 903 }
 904
 905 /**
 906  * Compares the given notification elements and calls {@link #markSoneAsKnown()}
 907  * for every ID that is contained in the old notification but not in the new.
 908  *
 909  * @param oldNotification
 910  *            The old notification element
 911  * @param newNotification
 912  *            The new notification element
 913  */
 914 function checkForRemovedSones(oldNotification, newNotification) {
 915         if (getNotificationId(oldNotification) != "new-sone-notification") {
 916                 return;
 917         }
 918         oldIds = getElementIds(oldNotification, ".new-sone-id");
 919         newIds = getElementIds(newNotification, ".new-sone-id");
 920         $.each(oldIds, function(index, value) {
 921                 if ($.inArray(value, newIds) == -1) {
 922                         markSoneAsKnown(getSone(value), true);
 923                 }
 924         });
 925 }
 926
 927 /**
 928  * Compares the given notification elements and calls {@link #markPostAsKnown()}
 929  * for every ID that is contained in the old notification but not in the new.
 930  *
 931  * @param oldNotification
 932  *            The old notification element
 933  * @param newNotification
 934  *            The new notification element
 935  */
 936 function checkForRemovedPosts(oldNotification, newNotification) {
 937         if (getNotificationId(oldNotification) != "new-post-notification") {
 938                 return;
 939         }
 940         oldIds = getElementIds(oldNotification, ".post-id");
 941         newIds = getElementIds(newNotification, ".post-id");
 942         $.each(oldIds, function(index, value) {
 943                 if ($.inArray(value, newIds) == -1) {
 944                         markPostAsKnown(getPost(value), true);
 945                 }
 946         });
 947 }
 948
 949 /**
 950  * Compares the given notification elements and calls
 951  * {@link #markReplyAsKnown()} for every ID that is contained in the old
 952  * notification but not in the new.
 953  *
 954  * @param oldNotification
 955  *            The old notification element
 956  * @param newNotification
 957  *            The new notification element
 958  */
 959 function checkForRemovedReplies(oldNotification, newNotification) {
 960         if (getNotificationId(oldNotification) != "new-replies-notification") {
 961                 return;
 962         }
 963         oldIds = getElementIds(oldNotification, ".reply-id");
 964         newIds = getElementIds(newNotification, ".reply-id");
 965         $.each(oldIds, function(index, value) {
 966                 if ($.inArray(value, newIds) == -1) {
 967                         markReplyAsKnown(getReply(value), true);
 968                 }
 969         });
 970 }
 971
 972 function getStatus() {
 973         ajaxGet("getStatus.ajax", isViewSonePage() ? {"soneIds": getShownSoneId() } : {"loadAllSones": isKnownSonesPage()}, function(data, textStatus) {
 974                 if ((data != null) && data.success) {
 975                         /* process Sone information. */
 976                         $.each(data.sones, function(index, value) {
 977                                 updateSoneStatus(value.id, value.name, value.status, value.modified, value.locked, value.lastUpdatedUnknown ? null : value.lastUpdated, value.lastUpdatedText);
 978                         });
 979                         /* search for removed notifications. */
 980                         $("#sone #notification-area .notification").each(function() {
 981                                 notificationId = $(this).attr("id");
 982                                 foundNotification = false;
 983                                 $.each(data.notifications, function(index, value) {
 984                                         if (value.id == notificationId) {
 985                                                 foundNotification = true;
 986                                                 return false;
 987                                         }
 988                                 });
 989                                 if (!foundNotification) {
 990                                         if (notificationId == "new-sone-notification") {
 991                                                 $(".new-sone-id", this).each(function(index, element) {
 992                                                         soneId = $(this).text();
 993                                                         markSoneAsKnown(getSone(soneId), true);
 994                                                 });
 995                                         } else if (notificationId == "new-post-notification") {
 996                                                 $(".post-id", this).each(function(index, element) {
 997                                                         postId = $(this).text();
 998                                                         markPostAsKnown(getPost(postId), true);
 999                                                 });
1000                                         } else if (notificationId == "new-replies-notification") {
1001                                                 $(".reply-id", this).each(function(index, element) {
1002                                                         replyId = $(this).text();
1003                                                         markReplyAsKnown(getReply(replyId), true);
1004                                                 });
1005                                         }
1006                                         $(this).slideUp("normal", function() {
1007                                                 $(this).remove();
1008                                                 /* remove activity when no notifications are visible. */
1009                                                 if ($("#sone #notification-area .notification").length == 0) {
1010                                                         resetActivity();
1011                                                 }
1012                                         });
1013                                 }
1014                         });
1015                         /* process notifications. */
1016                         notificationIds = [];
1017                         $.each(data.notifications, function(index, value) {
1018                                 oldNotification = getNotification(value.id);
1019                                 if ((oldNotification.length == 0) || (value.lastUpdatedTime > getNotificationLastUpdatedTime(oldNotification))) {
1020                                         notificationIds.push(value.id);
1021                                 }
1022                         });
1023                         if (notificationIds.length > 0) {
1024                                 loadNotifications(notificationIds);
1025                         }
1026                         /* process new posts. */
1027                         $.each(data.newPosts, function(index, value) {
1028                                 loadNewPost(value.id, value.sone, value.recipient, value.time);
1029                         });
1030                         /* process new replies. */
1031                         $.each(data.newReplies, function(index, value) {
1032                                 loadNewReply(value.id, value.sone, value.post, value.postSone);
1033                         });
1034                         /* do it again in 5 seconds. */
1035                         setTimeout(getStatus, 5000);
1036                 } else {
1037                         /* data.success was false, wait 30 seconds. */
1038                         setTimeout(getStatus, 30000);
1039                 }
1040         }, function() {
1041                 statusRequestQueued = false;
1042                 ajaxError();
1043         });
1044 }
1045
1046 /**
1047  * Requests multiple notifications from Sone and displays them.
1048  *
1049  * @param notificationIds
1050  *            Array of IDs of the notifications to load
1051  */
1052 function loadNotifications(notificationIds) {
1053         ajaxGet("getNotification.ajax", {"notifications": notificationIds.join(",")}, function(data, textStatus) {
1054                 if (!data || !data.success) {
1055                         // TODO - show error
1056                         return;
1057                 }
1058                 $.each(data.notifications, function(index, value) {
1059                         oldNotification = getNotification(value.id);
1060                         notification = ajaxifyNotification(createNotification(value.id, value.lastUpdatedTime, value.text, value.dismissable)).hide();
1061                         if (oldNotification.length != 0) {
1062                                 if ((oldNotification.find(".short-text").length > 0) && (notification.find(".short-text").length > 0)) {
1063                                         opened = oldNotification.is(":visible") && oldNotification.find(".short-text").hasClass("hidden");
1064                                         notification.find(".short-text").toggleClass("hidden", opened);
1065                                         notification.find(".text").toggleClass("hidden", !opened);
1066                                 }
1067                                 checkForRemovedSones(oldNotification, notification);
1068                                 checkForRemovedPosts(oldNotification, notification);
1069                                 checkForRemovedReplies(oldNotification, notification);
1070                                 oldNotification.replaceWith(notification.show());
1071                         } else {
1072                                 $("#sone #notification-area").append(notification);
1073                                 notification.slideDown();
1074                                 setActivity();
1075                         }
1076                 });
1077         });
1078 }
1079
1080 /**
1081  * Returns the ID of the currently logged in Sone.
1082  *
1083  * @return The ID of the current Sone, or an empty string if no Sone is logged
1084  *         in
1085  */
1086 function getCurrentSoneId() {
1087         return $("#currentSoneId").text();
1088 }
1089
1090 /**
1091  * Returns the content of the page-id attribute.
1092  *
1093  * @returns The page ID
1094  */
1095 function getPageId() {
1096         return $("#sone .page-id").text();
1097 }
1098
1099 /**
1100  * Returns whether the current page is the index page.
1101  *
1102  * @returns {Boolean} <code>true</code> if the current page is the index page,
1103  *          <code>false</code> otherwise
1104  */
1105 function isIndexPage() {
1106         return getPageId() == "index";
1107 }
1108
1109 /**
1110  * Returns the current page of the selected pagination. If no pagination can be
1111  * found with the given selector, {@code 1} is returned.
1112  *
1113  * @param paginationSelector
1114  *            The pagination selector
1115  * @returns The current page of the pagination
1116  */
1117 function getPage(paginationSelector) {
1118         pagination = $(paginationSelector);
1119         if (pagination.length > 0) {
1120                 return $(".current-page", paginationSelector).text();
1121         }
1122         return 1;
1123 }
1124
1125 /**
1126  * Returns whether the current page is a “view Sone” page.
1127  *
1128  * @returns {Boolean} <code>true</code> if the current page is a “view Sone”
1129  *          page, <code>false</code> otherwise
1130  */
1131 function isViewSonePage() {
1132         return getPageId() == "view-sone";
1133 }
1134
1135 /**
1136  * Returns the ID of the currently shown Sone. This will only return a sensible
1137  * value if isViewSonePage() returns <code>true</code>.
1138  *
1139  * @returns The ID of the currently shown Sone
1140  */
1141 function getShownSoneId() {
1142         return $("#sone .sone-id").text();
1143 }
1144
1145 /**
1146  * Returns whether the current page is a “view post” page.
1147  *
1148  * @returns {Boolean} <code>true</code> if the current page is a “view post”
1149  *          page, <code>false</code> otherwise
1150  */
1151 function isViewPostPage() {
1152         return getPageId() == "view-post";
1153 }
1154
1155 /**
1156  * Returns the ID of the currently shown post. This will only return a sensible
1157  * value if isViewPostPage() returns <code>true</code>.
1158  *
1159  * @returns The ID of the currently shown post
1160  */
1161 function getShownPostId() {
1162         return $("#sone .post-id").text();
1163 }
1164
1165 /**
1166  * Returns whether the current page is the “known Sones” page.
1167  *
1168  * @returns {Boolean} <code>true</code> if the current page is the “known
1169  *          Sones” page, <code>false</code> otherwise
1170  */
1171 function isKnownSonesPage() {
1172         return getPageId() == "known-sones";
1173 }
1174
1175 /**
1176  * Returns whether a post with the given ID exists on the current page.
1177  *
1178  * @param postId
1179  *            The post ID to check for
1180  * @returns {Boolean} <code>true</code> if a post with the given ID already
1181  *          exists on the page, <code>false</code> otherwise
1182  */
1183 function hasPost(postId) {
1184         return $(".post#" + postId).length > 0;
1185 }
1186
1187 /**
1188  * Returns whether a reply with the given ID exists on the current page.
1189  *
1190  * @param replyId
1191  *            The reply ID to check for
1192  * @returns {Boolean} <code>true</code> if a reply with the given ID already
1193  *          exists on the page, <code>false</code> otherwise
1194  */
1195 function hasReply(replyId) {
1196         return $("#sone .reply#" + replyId).length > 0;
1197 }
1198
1199 function loadNewPost(postId, soneId, recipientId, time) {
1200         if (hasPost(postId)) {
1201                 return;
1202         }
1203         if (!isIndexPage() || (getPage(".pagination-index") > 1)) {
1204                 if (!isViewPostPage() || (getShownPostId() != postId)) {
1205                         if (!isViewSonePage() || ((getShownSoneId() != soneId) && (getShownSoneId() != recipientId))) {
1206                                 return;
1207                         }
1208                 }
1209         }
1210         if (getPostTime($("#sone .post").last()) > time) {
1211                 return;
1212         }
1213         ajaxGet("getPost.ajax", { "post" : postId }, function(data, textStatus) {
1214                 if ((data != null) && data.success) {
1215                         if (hasPost(data.post.id)) {
1216                                 return;
1217                         }
1218                         if ((!isIndexPage() || (getPage(".pagination-index") > 1)) && !(isViewSonePage() && ((getShownSoneId() == data.post.sone) || (getShownSoneId() == data.post.recipient)))) {
1219                                 return;
1220                         }
1221                         var firstOlderPost = null;
1222                         $("#sone .post").each(function() {
1223                                 if (getPostTime(this) < data.post.time) {
1224                                         firstOlderPost = $(this);
1225                                         return false;
1226                                 }
1227                         });
1228                         newPost = $(data.post.html).addClass("hidden");
1229                         if (firstOlderPost != null) {
1230                                 newPost.insertBefore(firstOlderPost);
1231                         }
1232                         ajaxifyPost(newPost);
1233                         updatePostTimes(data.post.id);
1234                         newPost.slideDown();
1235                         setActivity();
1236                 }
1237         });
1238 }
1239
1240 function loadNewReply(replyId, soneId, postId, postSoneId) {
1241         if (hasReply(replyId)) {
1242                 return;
1243         }
1244         if (!hasPost(postId)) {
1245                 return;
1246         }
1247         ajaxGet("getReply.ajax", { "reply": replyId }, function(data, textStatus) {
1248                 /* find post. */
1249                 if ((data != null) && data.success) {
1250                         if (hasReply(data.reply.id)) {
1251                                 return;
1252                         }
1253                         $("#sone .post#" + data.reply.postId).each(function() {
1254                                 var firstNewerReply = null;
1255                                 $(this).find(".replies .reply").each(function() {
1256                                         if (getReplyTime(this) > data.reply.time) {
1257                                                 firstNewerReply = $(this);
1258                                                 return false;
1259                                         }
1260                                 });
1261                                 newReply = $(data.reply.html).addClass("hidden");
1262                                 if (firstNewerReply != null) {
1263                                         newReply.insertBefore(firstNewerReply);
1264                                 } else {
1265                                         if ($(this).find(".replies .create-reply")) {
1266                                                 $(this).find(".replies .create-reply").before(newReply);
1267                                         } else {
1268                                                 $(this).find(".replies").append(newReply);
1269                                         }
1270                                 }
1271                                 ajaxifyReply(newReply);
1272                                 updateReplyTimes(data.reply.id);
1273                                 newReply.slideDown();
1274                                 setActivity();
1275                                 return false;
1276                         });
1277                 }
1278         });
1279 }
1280
1281 /**
1282  * Marks the given Sone as known if it is still new.
1283  *
1284  * @param soneElement
1285  *            The Sone to mark as known
1286  * @param skipRequest
1287  *            true to skip the JSON request, false or omit to perform the JSON
1288  *            request
1289  */
1290 function markSoneAsKnown(soneElement, skipRequest) {
1291         if ($(soneElement).is(".new")) {
1292                 $(soneElement).removeClass("new");
1293                 if ((typeof skipRequest == "undefined") || !skipRequest) {
1294                         ajaxGet("markAsKnown.ajax", {"formPassword": getFormPassword(), "type": "sone", "id": getSoneId(soneElement)});
1295                 }
1296         }
1297 }
1298
1299 function markPostAsKnown(postElements, skipRequest) {
1300         $(postElements).each(function() {
1301                 postElement = this;
1302                 if ($(postElement).hasClass("new")) {
1303                         (function(postElement) {
1304                                 $(postElement).removeClass("new");
1305                                 if ((typeof skipRequest == "undefined") || !skipRequest) {
1306                                         ajaxGet("markAsKnown.ajax", {"formPassword": getFormPassword(), "type": "post", "id": getPostId(postElement)});
1307                                 }
1308                         })(postElement);
1309                 }
1310                 $(".click-to-show", postElement).removeClass("new");
1311         });
1312         markReplyAsKnown($(postElements).find(".reply"));
1313 }
1314
1315 function markReplyAsKnown(replyElements, skipRequest) {
1316         $(replyElements).each(function() {
1317                 replyElement = this;
1318                 if ($(replyElement).hasClass("new")) {
1319                         (function(replyElement) {
1320                                 $(replyElement).removeClass("new");
1321                                 if ((typeof skipRequest == "undefined") || !skipRequest) {
1322                                         ajaxGet("markAsKnown.ajax", {"formPassword": getFormPassword(), "type": "reply", "id": getReplyId(replyElement)});
1323                                 }
1324                         })(replyElement);
1325                 }
1326         });
1327 }
1328
1329 /**
1330  * Updates the time of the post with the given ID.
1331  *
1332  * @param postId
1333  *            The ID of the post to update
1334  * @param timeText
1335  *            The text of the time to show
1336  * @param refreshTime
1337  *            The refresh time after which to request a new time (in seconds)
1338  * @param tooltip
1339  *            The tooltip to show
1340  */
1341 function updatePostTime(postId, timeText, refreshTime, tooltip) {
1342         if (!getPost(postId).is(":visible")) {
1343                 return;
1344         }
1345         getPost(postId).find(".post-status-line > .time a").html(timeText).attr("title", tooltip);
1346         (function(postId, refreshTime) {
1347                 setTimeout(function() {
1348                         updatePostTimes(postId);
1349                 }, refreshTime * 1000);
1350         })(postId, refreshTime);
1351 }
1352
1353 /**
1354  * Requests new rendered times for the posts with the given IDs.
1355  *
1356  * @param postIds
1357  *            Comma-separated post IDs
1358  */
1359 function updatePostTimes(postIds) {
1360         ajaxGet("getTimes.ajax", { "posts" : postIds }, function(data, textStatus) {
1361                 if ((data != null) && data.success) {
1362                         $.each(data.postTimes, function(index, value) {
1363                                 updatePostTime(index, value.timeText, value.refreshTime, value.tooltip);
1364                         });
1365                 }
1366         });
1367 }
1368
1369 /**
1370  * Updates the time of the reply with the given ID.
1371  *
1372  * @param postId
1373  *            The ID of the reply to update
1374  * @param timeText
1375  *            The text of the time to show
1376  * @param refreshTime
1377  *            The refresh time after which to request a new time (in seconds)
1378  * @param tooltip
1379  *            The tooltip to show
1380  */
1381 function updateReplyTime(replyId, timeText, refreshTime, tooltip) {
1382         getReply(replyId).find(".reply-status-line > .time").html(timeText).attr("title", tooltip);
1383         (function(replyId, refreshTime) {
1384                 setTimeout(function() {
1385                         updateReplyTimes(replyId);
1386                 }, refreshTime * 1000);
1387         })(replyId, refreshTime);
1388 }
1389
1390 /**
1391  * Requests new rendered times for the posts with the given IDs.
1392  *
1393  * @param postIds
1394  *            Comma-separated post IDs
1395  */
1396 function updateReplyTimes(replyIds) {
1397         ajaxGet("getTimes.ajax", { "replies" : replyIds }, function(data, textStatus) {
1398                 if ((data != null) && data.success) {
1399                         $.each(data.replyTimes, function(index, value) {
1400                                 updateReplyTime(index, value.timeText, value.refreshTime, value.tooltip);
1401                         });
1402                 }
1403         });
1404 }
1405
1406 function resetActivity() {
1407         title = document.title;
1408         if (title.indexOf('(') == 0) {
1409                 setTitle(title.substr(title.indexOf(' ') + 1));
1410         }
1411         iconBlinking = false;
1412 }
1413
1414 function setActivity() {
1415         if (!focus) {
1416                 title = document.title;
1417                 if (title.indexOf('(') != 0) {
1418                         setTitle("(!) " + title);
1419                 }
1420                 if (!iconBlinking) {
1421                         setTimeout(toggleIcon, 1500);
1422                         iconBlinking = true;
1423                 }
1424         }
1425 }
1426
1427 /**
1428  * Sets the window title after a small delay to prevent race-condition issues.
1429  *
1430  * @param title
1431  *            The title to set
1432  */
1433 function setTitle(title) {
1434         setTimeout(function() {
1435                 document.title = title;
1436         }, 50);
1437 }
1438
1439 /** Whether the icon is currently showing activity. */
1440 var iconActive = false;
1441
1442 /** Whether the icon is currently supposed to blink. */
1443 var iconBlinking = false;
1444
1445 /**
1446  * Toggles the icon. If the window has gained focus and the icon is still
1447  * showing the activity state, it is returned to normal.
1448  */
1449 function toggleIcon() {
1450         if (focus || !iconBlinking) {
1451                 if (iconActive) {
1452                         changeIcon("images/icon.png");
1453                         iconActive = false;
1454                 }
1455                 iconBlinking = false;
1456         } else {
1457                 iconActive = !iconActive;
1458                 changeIcon(iconActive ? "images/icon-activity.png" : "images/icon.png");
1459                 setTimeout(toggleIcon, 1500);
1460         }
1461 }
1462
1463 /**
1464  * Changes the icon of the page.
1465  *
1466  * @param iconUrl
1467  *            The new URL of the icon
1468  */
1469 function changeIcon(iconUrl) {
1470         $("link[rel=icon]").remove();
1471         $("head").append($("<link>").attr("rel", "icon").attr("type", "image/png").attr("href", iconUrl));
1472         $("iframe[id=icon-update]")[0].src += "";
1473 }
1474
1475 /**
1476  * Creates a new notification.
1477  *
1478  * @param id
1479  *            The ID of the notificaiton
1480  * @param text
1481  *            The text of the notification
1482  * @param dismissable
1483  *            <code>true</code> if the notification can be dismissed by the
1484  *            user
1485  */
1486 function createNotification(id, lastUpdatedTime, text, dismissable) {
1487         notification = $("<div></div>").addClass("notification").attr("id", id).attr("lastUpdatedTime", lastUpdatedTime);
1488         if (dismissable) {
1489                 dismissForm = $("#sone #notification-area #notification-dismiss-template").clone().removeClass("hidden").removeAttr("id");
1490                 dismissForm.find("input[name=notification]").val(id);
1491                 notification.append(dismissForm);
1492         }
1493         notification.append(text);
1494         return notification;
1495 }
1496
1497 /**
1498  * Shows the details of the notification with the given ID.
1499  *
1500  * @param notificationId
1501  *            The ID of the notification
1502  */
1503 function showNotificationDetails(notificationId) {
1504         $("#sone .notification#" + notificationId + " .text").removeClass("hidden");
1505         $("#sone .notification#" + notificationId + " .short-text").addClass("hidden");
1506 }
1507
1508 /**
1509  * Deletes the field with the given ID from the profile.
1510  *
1511  * @param fieldId
1512  *            The ID of the field to delete
1513  */
1514 function deleteProfileField(fieldId) {
1515         ajaxGet("deleteProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId}, function(data, textStatus) {
1516                 if (data && data.success) {
1517                         $("#sone .profile-field#" + data.field.id).slideUp();
1518                 }
1519         });
1520 }
1521
1522 /**
1523  * Renames a profile field.
1524  *
1525  * @param fieldId
1526  *            The ID of the field to rename
1527  * @param newName
1528  *            The new name of the field
1529  * @param successFunction
1530  *            Called when the renaming was successful
1531  */
1532 function editProfileField(fieldId, newName, successFunction) {
1533         ajaxGet("editProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId, "name": newName}, function(data, textStatus) {
1534                 if (data && data.success) {
1535                         successFunction();
1536                 }
1537         });
1538 }
1539
1540 /**
1541  * Moves the profile field with the given ID one slot in the given direction.
1542  *
1543  * @param fieldId
1544  *            The ID of the field to move
1545  * @param direction
1546  *            The direction to move in (“up” or “down”)
1547  * @param successFunction
1548  *            Function to call on success
1549  */
1550 function moveProfileField(fieldId, direction, successFunction) {
1551         ajaxGet("moveProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId, "direction": direction}, function(data, textStatus) {
1552                 if (data && data.success) {
1553                         successFunction();
1554                 }
1555         });
1556 }
1557
1558 /**
1559  * Moves the profile field with the given ID up one slot.
1560  *
1561  * @param fieldId
1562  *            The ID of the field to move
1563  * @param successFunction
1564  *            Function to call on success
1565  */
1566 function moveProfileFieldUp(fieldId, successFunction) {
1567         moveProfileField(fieldId, "up", successFunction);
1568 }
1569
1570 /**
1571  * Moves the profile field with the given ID down one slot.
1572  *
1573  * @param fieldId
1574  *            The ID of the field to move
1575  * @param successFunction
1576  *            Function to call on success
1577  */
1578 function moveProfileFieldDown(fieldId, successFunction) {
1579         moveProfileField(fieldId, "down", successFunction);
1580 }
1581
1582 var statusRequestQueued = true;
1583
1584 /**
1585  * Sets the status of the web interface as offline.
1586  */
1587 function ajaxError() {
1588         online = false;
1589         toggleOfflineMarker(true);
1590         if (!statusRequestQueued) {
1591                 setTimeout(getStatus, 5000);
1592                 statusRequestQueued = true;
1593         }
1594 }
1595
1596 /**
1597  * Sets the status of the web interface as online.
1598  */
1599 function ajaxSuccess() {
1600         online = true;
1601         toggleOfflineMarker(false);
1602 }
1603
1604 /**
1605  * Shows or hides the offline marker.
1606  *
1607  * @param visible
1608  *            {@code true} to display the offline marker, {@code false} to hide
1609  *            it
1610  */
1611 function toggleOfflineMarker(visible) {
1612         /* jQuery documentation says toggle() works the other way around?! */
1613         $("#sone #offline-marker").toggle(visible);
1614         if (visible) {
1615                 $("#sone #main").addClass("offline");
1616         } else {
1617                 $("#sone #main").removeClass("offline");
1618         }
1619 }
1620
1621 //
1622 // EVERYTHING BELOW HERE IS EXECUTED AFTER LOADING THE PAGE
1623 //
1624
1625 var focus = true;
1626 var online = true;
1627
1628 $(document).ready(function() {
1629
1630         /* this initializes the status update input field. */
1631         getTranslation("WebInterface.DefaultText.StatusUpdate", function(defaultText) {
1632                 registerInputTextareaSwap("#sone #update-status .status-input", defaultText, "text", false, false);
1633                 $("#sone #update-status .select-sender").css("display", "inline");
1634                 $("#sone #update-status .sender").hide();
1635                 $("#sone #update-status .select-sender button").click(function() {
1636                         $("#sone #update-status .sender").show();
1637                         $("#sone #update-status .select-sender").hide();
1638                         return false;
1639                 });
1640                 $("#sone #update-status").submit(function() {
1641                         button = $("button:submit", this);
1642                         button.attr("disabled", "disabled");
1643                         if ($(this).find(":input.default:enabled").length > 0) {
1644                                 return false;
1645                         }
1646                         sender = $(this).find(":input[name=sender]").val();
1647                         text = $(this).find(":input[name=text]:enabled").val();
1648                         ajaxGet("createPost.ajax", { "formPassword": getFormPassword(), "sender": sender, "text": text }, function(data, textStatus) {
1649                                 button.removeAttr("disabled");
1650                         });
1651                         $(this).find(":input[name=sender]").val(getCurrentSoneId());
1652                         $(this).find(":input[name=text]:enabled").val("").blur();
1653                         $(this).find(".sender").hide();
1654                         $(this).find(".select-sender").show();
1655                         return false;
1656                 });
1657         });
1658
1659         /* ajaxify the search input field. */
1660         getTranslation("WebInterface.DefaultText.Search", function(defaultText) {
1661                 registerInputTextareaSwap("#sone #search input[name=query]", defaultText, "query", false, true);
1662         });
1663
1664         /* ajaxify input field on “view Sone” page. */
1665         getTranslation("WebInterface.DefaultText.Message", function(defaultText) {
1666                 registerInputTextareaSwap("#sone #post-message input[name=text]", defaultText, "text", false, false);
1667                 $("#sone #post-message .select-sender").css("display", "inline");
1668                 $("#sone #post-message .sender").hide();
1669                 $("#sone #post-message .select-sender button").click(function() {
1670                         $("#sone #post-message .sender").show();
1671                         $("#sone #post-message .select-sender").hide();
1672                         return false;
1673                 });
1674                 $("#sone #post-message").submit(function() {
1675                         sender = $(this).find(":input[name=sender]").val();
1676                         text = $(this).find(":input[name=text]:enabled").val();
1677                         ajaxGet("createPost.ajax", { "formPassword": getFormPassword(), "recipient": getShownSoneId(), "sender": sender, "text": text });
1678                         $(this).find(":input[name=sender]").val(getCurrentSoneId());
1679                         $(this).find(":input[name=text]:enabled").val("").blur();
1680                         $(this).find(".sender").hide();
1681                         $(this).find(".select-sender").show();
1682                         return false;
1683                 });
1684         });
1685
1686         /* Ajaxifies all posts. */
1687         /* calling getTranslation here will cache the necessary values. */
1688         getTranslation("WebInterface.Confirmation.DeletePostButton", function(text) {
1689                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(text) {
1690                         getTranslation("WebInterface.DefaultText.Reply", function(text) {
1691                                 $("#sone .post").each(function() {
1692                                         ajaxifyPost(this);
1693                                 });
1694                         });
1695                 });
1696         });
1697
1698         /* update post times. */
1699         postIds = [];
1700         $("#sone .post").each(function() {
1701                 postIds.push(getPostId(this));
1702         });
1703         updatePostTimes(postIds.join(","));
1704
1705         /* hides all replies but the latest two. */
1706         if (!isViewPostPage()) {
1707                 getTranslation("WebInterface.ClickToShow.Replies", function(text) {
1708                         $("#sone .post .replies").each(function() {
1709                                 allReplies = $(this).find(".reply");
1710                                 if (allReplies.length > 2) {
1711                                         newHidden = false;
1712                                         for (replyIndex = 0; !newHidden && (replyIndex < (allReplies.length - 2)); ++replyIndex) {
1713                                                 $(allReplies[replyIndex]).addClass("hidden");
1714                                                 newHidden |= $(allReplies[replyIndex]).hasClass("new");
1715                                         }
1716                                         clickToShowElement = $("<div></div>").addClass("click-to-show");
1717                                         if (newHidden) {
1718                                                 clickToShowElement.addClass("new");
1719                                         }
1720                                         (function(clickToShowElement, allReplies, text) {
1721                                                 clickToShowElement.text(text);
1722                                                 clickToShowElement.click(function() {
1723                                                         allReplies.removeClass("hidden");
1724                                                         clickToShowElement.addClass("hidden");
1725                                                 });
1726                                         })(clickToShowElement, allReplies, text);
1727                                         $(allReplies[0]).before(clickToShowElement);
1728                                 }
1729                         });
1730                 });
1731         }
1732
1733         $("#sone .sone").each(function() {
1734                 ajaxifySone($(this));
1735         });
1736
1737         /* process all existing notifications, ajaxify dismiss buttons. */
1738         $("#sone #notification-area .notification").each(function() {
1739                 ajaxifyNotification($(this));
1740         });
1741
1742         /* disable all permalinks. */
1743         $(".permalink").click(function() {
1744                 return false;
1745         });
1746
1747         /* activate status polling. */
1748         setTimeout(getStatus, 5000);
1749
1750         /* reset activity counter when the page has focus. */
1751         $(window).focus(function() {
1752                 focus = true;
1753                 resetActivity();
1754         }).blur(function() {
1755                 focus = false;
1756         });
1757
1758 });