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

   1 /* Sone JavaScript functions. */
   2
   3 /* jQuery overrides. */
   4 oldGetJson = jQuery.prototype.getJSON;
   5 jQuery.prototype.getJSON = function(url, data, successCallback, errorCallback) {
   6         if (typeof errorCallback == "undefined") {
   7                 return oldGetJson(url, data, successCallback);
   8         }
   9         if (jQuery.isFunction(data)) {
  10                 errorCallback = successCallback;
  11                 successCallback = data;
  12                 data = null;
  13         }
  14         return jQuery.ajax({
  15                 data: data,
  16                 error: errorCallback,
  17                 success: successCallback,
  18                 url: url
  19         });
  20 }
  21
  22 function isOnline() {
  23         return $("#sone").hasClass("online");
  24 }
  25
  26 function registerInputTextareaSwap(inputElement, defaultText, inputFieldName, optional, dontUseTextarea) {
  27         $(inputElement).each(function() {
  28                 textarea = $(dontUseTextarea ? "<input type=\"text\" name=\"" + inputFieldName + "\">" : "<textarea name=\"" + inputFieldName + "\"></textarea>").blur(function() {
  29                         if ($(this).val() == "") {
  30                                 $(this).hide();
  31                                 inputField = $(this).data("inputField");
  32                                 inputField.show().removeAttr("disabled").addClass("default");
  33                                 inputField.val(defaultText);
  34                         }
  35                 }).hide().data("inputField", $(this)).val($(this).val());
  36                 $(this).after(textarea);
  37                 (function(inputField, textarea) {
  38                         inputField.focus(function() {
  39                                 $(this).hide().attr("disabled", "disabled");
  40                                 textarea.show().focus();
  41                         });
  42                         if (inputField.val() == "") {
  43                                 inputField.addClass("default");
  44                                 inputField.val(defaultText);
  45                         } else {
  46                                 inputField.hide().attr("disabled", "disabled");
  47                                 textarea.show();
  48                         }
  49                         $(inputField.get(0).form).submit(function() {
  50                                 if (!optional && (textarea.val() == "")) {
  51                                         return false;
  52                                 }
  53                         });
  54                 })($(this), textarea);
  55         });
  56 }
  57
  58 /**
  59  * Adds a “comment” link to all status lines contained in the given element.
  60  *
  61  * @param postId
  62  *            The ID of the post
  63  * @param element
  64  *            The element to add a “comment” link to
  65  */
  66 function addCommentLink(postId, element, insertAfterThisElement) {
  67         if ($(element).find(".show-reply-form").length > 0) {
  68                 return;
  69         }
  70         commentElement = (function(postId) {
  71                 separator = $("<span> · </span>").addClass("separator");
  72                 var commentElement = $("<div><span>Comment</span></div>").addClass("show-reply-form").click(function() {
  73                         markPostAsKnown(getPostElement(this));
  74                         replyElement = $("#sone .post#" + postId + " .create-reply");
  75                         replyElement.removeClass("hidden");
  76                         replyElement.removeClass("light");
  77                         (function(replyElement) {
  78                                 replyElement.find("input.reply-input").blur(function() {
  79                                         if ($(this).hasClass("default")) {
  80                                                 replyElement.addClass("light");
  81                                         }
  82                                 }).focus(function() {
  83                                         replyElement.removeClass("light");
  84                                 });
  85                         })(replyElement);
  86                         replyElement.find("input.reply-input").focus();
  87                 });
  88                 return commentElement;
  89         })(postId);
  90         $(insertAfterThisElement).after(commentElement.clone(true));
  91         $(insertAfterThisElement).after(separator);
  92 }
  93
  94 var translations = {};
  95
  96 /**
  97  * Retrieves the translation for the given key and calls the callback function.
  98  * The callback function takes a single parameter, the translated string.
  99  *
 100  * @param key
 101  *            The key of the translation string
 102  * @param callback
 103  *            The callback function
 104  */
 105 function getTranslation(key, callback) {
 106         if (key in translations) {
 107                 callback(translations[key]);
 108                 return;
 109         }
 110         $.getJSON("getTranslation.ajax", {"key": key}, function(data, textStatus) {
 111                 if ((data != null) && data.success) {
 112                         translations[key] = data.value;
 113                         callback(data.value);
 114                 }
 115         }, function(xmlHttpRequest, textStatus, error) {
 116                 /* ignore error. */
 117         });
 118 }
 119
 120 /**
 121  * Filters the given Sone ID, replacing all “~” characters by an underscore.
 122  *
 123  * @param soneId
 124  *            The Sone ID to filter
 125  * @returns The filtered Sone ID
 126  */
 127 function filterSoneId(soneId) {
 128         return soneId.replace(/[^a-zA-Z0-9-]/g, "_");
 129 }
 130
 131 /**
 132  * Updates the status of the given Sone.
 133  *
 134  * @param soneId
 135  *            The ID of the Sone to update
 136  * @param status
 137  *            The status of the Sone (“idle”, “unknown”, “inserting”,
 138  *            “downloading”)
 139  * @param modified
 140  *            Whether the Sone is modified
 141  * @param locked
 142  *            Whether the Sone is locked
 143  * @param lastUpdated
 144  *            The date and time of the last update (formatted for display)
 145  */
 146 function updateSoneStatus(soneId, name, status, modified, locked, lastUpdated) {
 147         $("#sone .sone." + filterSoneId(soneId)).
 148                 toggleClass("unknown", status == "unknown").
 149                 toggleClass("idle", status == "idle").
 150                 toggleClass("inserting", status == "inserting").
 151                 toggleClass("downloading", status == "downloading").
 152                 toggleClass("modified", modified);
 153         $("#sone .sone." + filterSoneId(soneId) + " .lock").toggleClass("hidden", locked);
 154         $("#sone .sone." + filterSoneId(soneId) + " .unlock").toggleClass("hidden", !locked);
 155         $("#sone .sone." + filterSoneId(soneId) + " .last-update span.time").text(lastUpdated);
 156         $("#sone .sone." + filterSoneId(soneId) + " .profile-link a").text(name);
 157 }
 158
 159 /**
 160  * Enhances a “delete” button so that the confirmation is done on the same page.
 161  *
 162  * @param button
 163  *            The button element
 164  * @param text
 165  *            The text to show on the button
 166  * @param deleteCallback
 167  *            The callback that actually deletes something
 168  */
 169 function enhanceDeleteButton(button, text, deleteCallback) {
 170         (function(button) {
 171                 newButton = $("<button></button>").addClass("confirm").hide().text(text).click(function() {
 172                         $(this).fadeOut("slow");
 173                         deleteCallback();
 174                         return false;
 175                 }).insertAfter(button);
 176                 (function(button, newButton) {
 177                         button.click(function() {
 178                                 button.fadeOut("slow", function() {
 179                                         newButton.fadeIn("slow");
 180                                         $(document).one("click", function() {
 181                                                 if (this != newButton.get(0)) {
 182                                                         newButton.fadeOut(function() {
 183                                                                 button.fadeIn();
 184                                                         });
 185                                                 }
 186                                         });
 187                                 });
 188                                 return false;
 189                         });
 190                 })(button, newButton);
 191         })($(button));
 192 }
 193
 194 /**
 195  * Enhances a post’s “delete” button.
 196  *
 197  * @param button
 198  *            The button element
 199  * @param postId
 200  *            The ID of the post to delete
 201  * @param text
 202  *            The text to replace the button with
 203  */
 204 function enhanceDeletePostButton(button, postId, text) {
 205         enhanceDeleteButton(button, text, function() {
 206                 $.getJSON("deletePost.ajax", { "post": postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 207                         if (data == null) {
 208                                 return;
 209                         }
 210                         if (data.success) {
 211                                 $("#sone .post#" + postId).slideUp();
 212                         } else if (data.error == "invalid-post-id") {
 213                                 alert("Invalid post ID given!");
 214                         } else if (data.error == "auth-required") {
 215                                 alert("You need to be logged in.");
 216                         } else if (data.error == "not-authorized") {
 217                                 alert("You are not allowed to delete this post.");
 218                         }
 219                 }, function(xmlHttpRequest, textStatus, error) {
 220                         /* ignore error. */
 221                 });
 222         });
 223 }
 224
 225 /**
 226  * Enhances a reply’s “delete” button.
 227  *
 228  * @param button
 229  *            The button element
 230  * @param replyId
 231  *            The ID of the reply to delete
 232  * @param text
 233  *            The text to replace the button with
 234  */
 235 function enhanceDeleteReplyButton(button, replyId, text) {
 236         enhanceDeleteButton(button, text, function() {
 237                 $.getJSON("deleteReply.ajax", { "reply": replyId, "formPassword": $("#sone #formPassword").text() }, function(data, textStatus) {
 238                         if (data == null) {
 239                                 return;
 240                         }
 241                         if (data.success) {
 242                                 $("#sone .reply#" + replyId).slideUp();
 243                         } else if (data.error == "invalid-reply-id") {
 244                                 alert("Invalid reply ID given!");
 245                         } else if (data.error == "auth-required") {
 246                                 alert("You need to be logged in.");
 247                         } else if (data.error == "not-authorized") {
 248                                 alert("You are not allowed to delete this reply.");
 249                         }
 250                 }, function(xmlHttpRequest, textStatus, error) {
 251                         /* ignore error. */
 252                 });
 253         });
 254 }
 255
 256 function getFormPassword() {
 257         return $("#sone #formPassword").text();
 258 }
 259
 260 function getSoneElement(element) {
 261         return $(element).closest(".sone");
 262 }
 263
 264 /**
 265  * Generates a list of Sones by concatening the names of the given sones with a
 266  * new line character (“\n”).
 267  *
 268  * @param sones
 269  *            The sones to format
 270  * @returns {String} The created string
 271  */
 272 function generateSoneList(sones) {
 273         var soneList = "";
 274         $.each(sones, function() {
 275                 if (soneList != "") {
 276                         soneList += ", ";
 277                 }
 278                 soneList += this.name;
 279         });
 280         return soneList;
 281 }
 282
 283 /**
 284  * Returns the ID of the Sone that this element belongs to.
 285  *
 286  * @param element
 287  *            The element to locate the matching Sone ID for
 288  * @returns The ID of the Sone, or undefined
 289  */
 290 function getSoneId(element) {
 291         return getSoneElement(element).find(".id").text();
 292 }
 293
 294 function getPostElement(element) {
 295         return $(element).closest(".post");
 296 }
 297
 298 function getPostId(element) {
 299         return getPostElement(element).attr("id");
 300 }
 301
 302 function getPostTime(element) {
 303         return getPostElement(element).find(".post-time").text();
 304 }
 305
 306 /**
 307  * Returns the author of the post the given element belongs to.
 308  *
 309  * @param element
 310  *            The element whose post to get the author for
 311  * @returns The ID of the authoring Sone
 312  */
 313 function getPostAuthor(element) {
 314         return getPostElement(element).find(".post-author").text();
 315 }
 316
 317 function getReplyElement(element) {
 318         return $(element).closest(".reply");
 319 }
 320
 321 function getReplyId(element) {
 322         return getReplyElement(element).attr("id");
 323 }
 324
 325 function getReplyTime(element) {
 326         return getReplyElement(element).find(".reply-time").text();
 327 }
 328
 329 /**
 330  * Returns the author of the reply the given element belongs to.
 331  *
 332  * @param element
 333  *            The element whose reply to get the author for
 334  * @returns The ID of the authoring Sone
 335  */
 336 function getReplyAuthor(element) {
 337         return getReplyElement(element).find(".reply-author").text();
 338 }
 339
 340 function likePost(postId) {
 341         $.getJSON("like.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 342                 if ((data == null) || !data.success) {
 343                         return;
 344                 }
 345                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").addClass("hidden");
 346                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").removeClass("hidden");
 347                 updatePostLikes(postId);
 348         }, function(xmlHttpRequest, textStatus, error) {
 349                 /* ignore error. */
 350         });
 351 }
 352
 353 function unlikePost(postId) {
 354         $.getJSON("unlike.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 355                 if ((data == null) || !data.success) {
 356                         return;
 357                 }
 358                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").addClass("hidden");
 359                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").removeClass("hidden");
 360                 updatePostLikes(postId);
 361         }, function(xmlHttpRequest, textStatus, error) {
 362                 /* ignore error. */
 363         });
 364 }
 365
 366 function updatePostLikes(postId) {
 367         $.getJSON("getLikes.ajax", { "type": "post", "post": postId }, function(data, textStatus) {
 368                 if ((data != null) && data.success) {
 369                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes").toggleClass("hidden", data.likes == 0)
 370                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes span.like-count").text(data.likes);
 371                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes > span").attr("title", generateSoneList(data.sones));
 372                 }
 373         }, function(xmlHttpRequest, textStatus, error) {
 374                 /* ignore error. */
 375         });
 376 }
 377
 378 function likeReply(replyId) {
 379         $.getJSON("like.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
 380                 if ((data == null) || !data.success) {
 381                         return;
 382                 }
 383                 $("#sone .reply#" + replyId + " .status-line .like").addClass("hidden");
 384                 $("#sone .reply#" + replyId + " .status-line .unlike").removeClass("hidden");
 385                 updateReplyLikes(replyId);
 386         }, function(xmlHttpRequest, textStatus, error) {
 387                 /* ignore error. */
 388         });
 389 }
 390
 391 function unlikeReply(replyId) {
 392         $.getJSON("unlike.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
 393                 if ((data == null) || !data.success) {
 394                         return;
 395                 }
 396                 $("#sone .reply#" + replyId + " .status-line .unlike").addClass("hidden");
 397                 $("#sone .reply#" + replyId + " .status-line .like").removeClass("hidden");
 398                 updateReplyLikes(replyId);
 399         }, function(xmlHttpRequest, textStatus, error) {
 400                 /* ignore error. */
 401         });
 402 }
 403
 404 /**
 405  * Trusts the Sone with the given ID.
 406  *
 407  * @param soneId
 408  *            The ID of the Sone to trust
 409  */
 410 function trustSone(soneId) {
 411         $.getJSON("trustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 412                 if ((data != null) && data.success) {
 413                         updateTrustControls(soneId, data.trustValue);
 414                 }
 415         });
 416 }
 417
 418 /**
 419  * Distrusts the Sone with the given ID, i.e. assigns a negative trust value.
 420  *
 421  * @param soneId
 422  *            The ID of the Sone to distrust
 423  */
 424 function distrustSone(soneId) {
 425         $.getJSON("distrustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 426                 if ((data != null) && data.success) {
 427                         updateTrustControls(soneId, data.trustValue);
 428                 }
 429         });
 430 }
 431
 432 /**
 433  * Untrusts the Sone with the given ID, i.e. removes any trust assignment.
 434  *
 435  * @param soneId
 436  *            The ID of the Sone to untrust
 437  */
 438 function untrustSone(soneId) {
 439         $.getJSON("untrustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 440                 if ((data != null) && data.success) {
 441                         updateTrustControls(soneId, data.trustValue);
 442                 }
 443         });
 444 }
 445
 446 /**
 447  * Updates the trust controls for all posts and replies of the given Sone,
 448  * according to the given trust value.
 449  *
 450  * @param soneId
 451  *            The ID of the Sone to update all trust controls for
 452  * @param trustValue
 453  *            The trust value for the Sone
 454  */
 455 function updateTrustControls(soneId, trustValue) {
 456         $("#sone .post").each(function() {
 457                 if (getPostAuthor(this) == soneId) {
 458                         getPostElement(this).find(".post-trust").toggleClass("hidden", trustValue != null);
 459                         getPostElement(this).find(".post-distrust").toggleClass("hidden", (trustValue != null) && (trustValue < 0));
 460                         getPostElement(this).find(".post-untrust").toggleClass("hidden", trustValue == null);
 461                 }
 462         });
 463         $("#sone .reply").each(function() {
 464                 if (getReplyAuthor(this) == soneId) {
 465                         getReplyElement(this).find(".reply-trust").toggleClass("hidden", trustValue != null);
 466                         getReplyElement(this).find(".reply-distrust").toggleClass("hidden", (trustValue != null) && (trustValue < 0));
 467                         getReplyElement(this).find(".reply-untrust").toggleClass("hidden", trustValue == null);
 468                 }
 469         });
 470 }
 471
 472 function updateReplyLikes(replyId) {
 473         $.getJSON("getLikes.ajax", { "type": "reply", "reply": replyId }, function(data, textStatus) {
 474                 if ((data != null) && data.success) {
 475                         $("#sone .reply#" + replyId + " .status-line .likes").toggleClass("hidden", data.likes == 0)
 476                         $("#sone .reply#" + replyId + " .status-line .likes span.like-count").text(data.likes);
 477                         $("#sone .reply#" + replyId + " .status-line .likes > span").attr("title", generateSoneList(data.sones));
 478                 }
 479         }, function(xmlHttpRequest, textStatus, error) {
 480                 /* ignore error. */
 481         });
 482 }
 483
 484 /**
 485  * Posts a reply and calls the given callback when the request finishes.
 486  *
 487  * @param postId
 488  *            The ID of the post the reply refers to
 489  * @param text
 490  *            The text to post
 491  * @param callbackFunction
 492  *            The callback function to call when the request finishes (takes 3
 493  *            parameters: success, error, replyId)
 494  */
 495 function postReply(postId, text, callbackFunction) {
 496         $.getJSON("createReply.ajax", { "formPassword" : getFormPassword(), "post" : postId, "text": text }, function(data, textStatus) {
 497                 if (data == null) {
 498                         /* TODO - show error */
 499                         return;
 500                 }
 501                 if (data.success) {
 502                         callbackFunction(true, null, data.reply);
 503                 } else {
 504                         callbackFunction(false, data.error);
 505                 }
 506         }, function(xmlHttpRequest, textStatus, error) {
 507                 /* ignore error. */
 508         });
 509 }
 510
 511 /**
 512  * Requests information about the reply with the given ID.
 513  *
 514  * @param replyId
 515  *            The ID of the reply
 516  * @param callbackFunction
 517  *            A callback function (parameters soneId, soneName, replyTime,
 518  *            replyDisplayTime, text, html)
 519  */
 520 function getReply(replyId, callbackFunction) {
 521         $.getJSON("getReply.ajax", { "reply" : replyId }, function(data, textStatus) {
 522                 if ((data != null) && data.success) {
 523                         callbackFunction(data.soneId, data.soneName, data.time, data.displayTime, data.text, data.html);
 524                 }
 525         }, function(xmlHttpRequest, textStatus, error) {
 526                 /* ignore error. */
 527         });
 528 }
 529
 530 /**
 531  * Ajaxifies the given post by enhancing all eligible elements with AJAX.
 532  *
 533  * @param postElement
 534  *            The post element to ajaxify
 535  */
 536 function ajaxifyPost(postElement) {
 537         $(postElement).find("form").submit(function() {
 538                 return false;
 539         });
 540         $(postElement).find(".create-reply button:submit").click(function() {
 541                 inputField = $(this.form).find(":input:enabled").get(0);
 542                 postId = getPostId(this);
 543                 text = $(inputField).val();
 544                 (function(postId, text, inputField) {
 545                         postReply(postId, text, function(success, error, replyId) {
 546                                 if (success) {
 547                                         $(inputField).val("");
 548                                         loadNewReply(replyId);
 549                                         markPostAsKnown(getPostElement(inputField));
 550                                         $("#sone .post#" + postId + " .create-reply").addClass("hidden");
 551                                 } else {
 552                                         alert(error);
 553                                 }
 554                         });
 555                 })(postId, text, inputField);
 556                 return false;
 557         });
 558
 559         /* replace all “delete” buttons with javascript. */
 560         (function(postElement) {
 561                 getTranslation("WebInterface.Confirmation.DeletePostButton", function(deletePostText) {
 562                         postId = getPostId(postElement);
 563                         enhanceDeletePostButton($(postElement).find(".delete-post button"), postId, deletePostText);
 564                 });
 565         })(postElement);
 566
 567         /* convert all “like” buttons to javascript functions. */
 568         $(postElement).find(".like-post").submit(function() {
 569                 likePost(getPostId(this));
 570                 markPostAsKnown(getPostElement(this));
 571                 return false;
 572         });
 573         $(postElement).find(".unlike-post").submit(function() {
 574                 unlikePost(getPostId(this));
 575                 markPostAsKnown(getPostElement(this));
 576                 return false;
 577         });
 578
 579         /* convert trust control buttons to javascript functions. */
 580         $(postElement).find(".post-trust").submit(function() {
 581                 trustSone(getPostAuthor(this));
 582                 return false;
 583         });
 584         $(postElement).find(".post-distrust").submit(function() {
 585                 distrustSone(getPostAuthor(this));
 586                 return false;
 587         });
 588         $(postElement).find(".post-untrust").submit(function() {
 589                 untrustSone(getPostAuthor(this));
 590                 return false;
 591         });
 592
 593         /* add “comment” link. */
 594         addCommentLink(getPostId(postElement), postElement, $(postElement).find(".post-status-line .time"));
 595
 596         /* process all replies. */
 597         $(postElement).find(".reply").each(function() {
 598                 ajaxifyReply(this);
 599         });
 600
 601         /* process reply input fields. */
 602         getTranslation("WebInterface.DefaultText.Reply", function(text) {
 603                 $(postElement).find("input.reply-input").each(function() {
 604                         registerInputTextareaSwap(this, text, "text", false, false);
 605                 });
 606         });
 607
 608         /* mark everything as known on click. */
 609         $(postElement).click(function() {
 610                 markPostAsKnown(this);
 611         });
 612
 613         /* hide reply input field. */
 614         $(postElement).find(".create-reply").addClass("hidden");
 615 }
 616
 617 /**
 618  * Ajaxifies the given reply element.
 619  *
 620  * @param replyElement
 621  *            The reply element to ajaxify
 622  */
 623 function ajaxifyReply(replyElement) {
 624         $(replyElement).find(".like-reply").submit(function() {
 625                 likeReply(getReplyId(this));
 626                 markPostAsKnown(getPostElement(this));
 627                 return false;
 628         });
 629         $(replyElement).find(".unlike-reply").submit(function() {
 630                 unlikeReply(getReplyId(this));
 631                 markPostAsKnown(getPostElement(this));
 632                 return false;
 633         });
 634         (function(replyElement) {
 635                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(deleteReplyText) {
 636                         $(replyElement).find(".delete-reply button").each(function() {
 637                                 enhanceDeleteReplyButton(this, getReplyId(replyElement), deleteReplyText);
 638                         });
 639                 });
 640         })(replyElement);
 641         addCommentLink(getPostId(replyElement), replyElement, $(replyElement).find(".reply-status-line .time"));
 642
 643         /* mark post and all replies as known on click. */
 644         $(replyElement).click(function() {
 645                 markPostAsKnown(getPostElement(this));
 646         });
 647 }
 648
 649 /**
 650  * Ajaxifies the given notification by replacing the form with AJAX.
 651  *
 652  * @param notification
 653  *            jQuery object representing the notification.
 654  */
 655 function ajaxifyNotification(notification) {
 656         notification.find("form.dismiss").submit(function() {
 657                 return false;
 658         });
 659         notification.find("form.dismiss button").click(function() {
 660                 $.getJSON("dismissNotification.ajax", { "formPassword" : getFormPassword(), "notification" : notification.attr("id") }, function(data, textStatus) {
 661                         /* dismiss in case of error, too. */
 662                         notification.slideUp();
 663                 }, function(xmlHttpRequest, textStatus, error) {
 664                         /* ignore error. */
 665                 });
 666         });
 667         return notification;
 668 }
 669
 670 function getStatus() {
 671         $.getJSON("getStatus.ajax", {"loadAllSones": isKnownSonesPage()}, function(data, textStatus) {
 672                 if ((data != null) && data.success) {
 673                         /* process Sone information. */
 674                         $.each(data.sones, function(index, value) {
 675                                 updateSoneStatus(value.id, value.name, value.status, value.modified, value.locked, value.lastUpdated);
 676                         });
 677                         /* process notifications. */
 678                         $.each(data.notifications, function(index, value) {
 679                                 oldNotification = $("#sone #notification-area .notification#" + value.id);
 680                                 notification = ajaxifyNotification(createNotification(value.id, value.text, value.dismissable)).hide();
 681                                 if (oldNotification.length != 0) {
 682                                         oldNotification.replaceWith(notification.show());
 683                                 } else {
 684                                         $("#sone #notification-area").append(notification);
 685                                         notification.slideDown();
 686                                 }
 687                                 setActivity();
 688                         });
 689                         $.each(data.removedNotifications, function(index, value) {
 690                                 $("#sone #notification-area .notification#" + value.id).slideUp();
 691                         });
 692                         /* process new posts. */
 693                         $.each(data.newPosts, function(index, value) {
 694                                 loadNewPost(value);
 695                         });
 696                         /* process new replies. */
 697                         $.each(data.newReplies, function(index, value) {
 698                                 loadNewReply(value);
 699                         });
 700                         /* do it again in 5 seconds. */
 701                         setTimeout(getStatus, 5000);
 702                 } else {
 703                         /* data.success was false, wait 30 seconds. */
 704                         setTimeout(getStatus, 30000);
 705                 }
 706         }, function(xmlHttpRequest, textStatus, error) {
 707                 /* something really bad happend, wait a minute. */
 708                 setTimeout(getStatus, 60000);
 709         })
 710 }
 711
 712 /**
 713  * Returns the content of the page-id attribute.
 714  *
 715  * @returns The page ID
 716  */
 717 function getPageId() {
 718         return $("#sone .page-id").text();
 719 }
 720
 721 /**
 722  * Returns whether the current page is the index page.
 723  *
 724  * @returns {Boolean} <code>true</code> if the current page is the index page,
 725  *          <code>false</code> otherwise
 726  */
 727 function isIndexPage() {
 728         return getPageId() == "index";
 729 }
 730
 731 /**
 732  * Returns whether the current page is a “view Sone” page.
 733  *
 734  * @returns {Boolean} <code>true</code> if the current page is a “view Sone”
 735  *          page, <code>false</code> otherwise
 736  */
 737 function isViewSonePage() {
 738         return getPageId() == "view-sone";
 739 }
 740
 741 /**
 742  * Returns the ID of the currently shown Sone. This will only return a sensible
 743  * value if isViewSonePage() returns <code>true</code>.
 744  *
 745  * @returns The ID of the currently shown Sone
 746  */
 747 function getShownSoneId() {
 748         return $("#sone .sone-id").text();
 749 }
 750
 751 /**
 752  * Returns whether the current page is a “view post” page.
 753  *
 754  * @returns {Boolean} <code>true</code> if the current page is a “view post”
 755  *          page, <code>false</code> otherwise
 756  */
 757 function isViewPostPage() {
 758         return getPageId() == "view-post";
 759 }
 760
 761 /**
 762  * Returns the ID of the currently shown post. This will only return a sensible
 763  * value if isViewPostPage() returns <code>true</code>.
 764  *
 765  * @returns The ID of the currently shown post
 766  */
 767 function getShownPostId() {
 768         return $("#sone .post-id").text();
 769 }
 770
 771 /**
 772  * Returns whether the current page is the “known Sones” page.
 773  *
 774  * @returns {Boolean} <code>true</code> if the current page is the “known
 775  *          Sones” page, <code>false</code> otherwise
 776  */
 777 function isKnownSonesPage() {
 778         return getPageId() == "known-sones";
 779 }
 780
 781 /**
 782  * Returns whether a post with the given ID exists on the current page.
 783  *
 784  * @param postId
 785  *            The post ID to check for
 786  * @returns {Boolean} <code>true</code> if a post with the given ID already
 787  *          exists on the page, <code>false</code> otherwise
 788  */
 789 function hasPost(postId) {
 790         return $(".post#" + postId).length > 0;
 791 }
 792
 793 /**
 794  * Returns whether a reply with the given ID exists on the current page.
 795  *
 796  * @param replyId
 797  *            The reply ID to check for
 798  * @returns {Boolean} <code>true</code> if a reply with the given ID already
 799  *          exists on the page, <code>false</code> otherwise
 800  */
 801 function hasReply(replyId) {
 802         return $("#sone .reply#" + replyId).length > 0;
 803 }
 804
 805 function loadNewPost(postId) {
 806         if (hasPost(postId)) {
 807                 return;
 808         }
 809         $.getJSON("getPost.ajax", { "post" : postId }, function(data, textStatus) {
 810                 if ((data != null) && data.success) {
 811                         if (hasPost(data.post.id)) {
 812                                 return;
 813                         }
 814                         if (!isIndexPage() && !(isViewSonePage() && ((getShownSoneId() == data.post.sone) || (getShownSoneId() == data.post.recipient)))) {
 815                                 return;
 816                         }
 817                         var firstOlderPost = null;
 818                         $("#sone .post").each(function() {
 819                                 if (getPostTime(this) < data.post.time) {
 820                                         firstOlderPost = $(this);
 821                                         return false;
 822                                 }
 823                         });
 824                         newPost = $(data.post.html).addClass("hidden");
 825                         if (firstOlderPost != null) {
 826                                 newPost.insertBefore(firstOlderPost);
 827                         } else {
 828                                 $("#sone #posts").append(newPost);
 829                         }
 830                         ajaxifyPost(newPost);
 831                         newPost.slideDown();
 832                         setActivity();
 833                 }
 834         });
 835 }
 836
 837 function loadNewReply(replyId) {
 838         if (hasReply(replyId)) {
 839                 return;
 840         }
 841         $.getJSON("getReply.ajax", { "reply": replyId }, function(data, textStatus) {
 842                 /* find post. */
 843                 if ((data != null) && data.success) {
 844                         if (hasReply(data.reply.id)) {
 845                                 return;
 846                         }
 847                         $("#sone .post#" + data.reply.postId).each(function() {
 848                                 var firstNewerReply = null;
 849                                 $(this).find(".replies .reply").each(function() {
 850                                         if (getReplyTime(this) > data.reply.time) {
 851                                                 firstNewerReply = $(this);
 852                                                 return false;
 853                                         }
 854                                 });
 855                                 newReply = $(data.reply.html).addClass("hidden");
 856                                 if (firstNewerReply != null) {
 857                                         newReply.insertBefore(firstNewerReply);
 858                                 } else {
 859                                         if ($(this).find(".replies .create-reply")) {
 860                                                 $(this).find(".replies .create-reply").before(newReply);
 861                                         } else {
 862                                                 $(this).find(".replies").append(newReply);
 863                                         }
 864                                 }
 865                                 ajaxifyReply(newReply);
 866                                 newReply.slideDown();
 867                                 setActivity();
 868                                 return false;
 869                         });
 870                 }
 871         });
 872 }
 873
 874 function markPostAsKnown(postElements) {
 875         $(postElements).each(function() {
 876                 postElement = this;
 877                 if ($(postElement).hasClass("new")) {
 878                         (function(postElement) {
 879                                 $.getJSON("markPostAsKnown.ajax", {"formPassword": getFormPassword(), "post": getPostId(postElement)}, function(data, textStatus) {
 880                                         $(postElement).removeClass("new");
 881                                 });
 882                         })(postElement);
 883                 }
 884         });
 885         markReplyAsKnown($(postElements).find(".reply"));
 886 }
 887
 888 function markReplyAsKnown(replyElements) {
 889         $(replyElements).each(function() {
 890                 replyElement = this;
 891                 if ($(replyElement).hasClass("new")) {
 892                         (function(replyElement) {
 893                                 $.getJSON("markReplyAsKnown.ajax", {"formPassword": getFormPassword(), "reply": getReplyId(replyElement)}, function(data, textStatus) {
 894                                         $(replyElement).removeClass("new");
 895                                 });
 896                         })(replyElement);
 897                 }
 898         });
 899 }
 900
 901 function resetActivity() {
 902         title = document.title;
 903         if (title.indexOf('(') == 0) {
 904                 document.title = title.substr(title.indexOf(' ') + 1);
 905         }
 906 }
 907
 908 function setActivity() {
 909         if (!focus) {
 910                 title = document.title;
 911                 if (title.indexOf('(') != 0) {
 912                         document.title = "(!) " + title;
 913                 }
 914         }
 915 }
 916
 917 /**
 918  * Creates a new notification.
 919  *
 920  * @param id
 921  *            The ID of the notificaiton
 922  * @param text
 923  *            The text of the notification
 924  * @param dismissable
 925  *            <code>true</code> if the notification can be dismissed by the
 926  *            user
 927  */
 928 function createNotification(id, text, dismissable) {
 929         notification = $("<div></div>").addClass("notification").attr("id", id);
 930         if (dismissable) {
 931                 dismissForm = $("#sone #notification-area #notification-dismiss-template").clone().removeClass("hidden").removeAttr("id")
 932                 dismissForm.find("input[name=notification]").val(id);
 933                 notification.append(dismissForm);
 934         }
 935         notification.append(text);
 936         return notification;
 937 }
 938
 939 /**
 940  * Shows the details of the notification with the given ID.
 941  *
 942  * @param notificationId
 943  *            The ID of the notification
 944  */
 945 function showNotificationDetails(notificationId) {
 946         $("#sone .notification#" + notificationId + " .text").show();
 947         $("#sone .notification#" + notificationId + " .short-text").hide();
 948 }
 949
 950 //
 951 // EVERYTHING BELOW HERE IS EXECUTED AFTER LOADING THE PAGE
 952 //
 953
 954 var focus = true;
 955
 956 $(document).ready(function() {
 957
 958         /* this initializes the status update input field. */
 959         getTranslation("WebInterface.DefaultText.StatusUpdate", function(defaultText) {
 960                 registerInputTextareaSwap("#sone #update-status .status-input", defaultText, "text", false, false);
 961                 $("#sone #update-status").submit(function() {
 962                         if ($(this).find(":input.default:enabled").length > 0) {
 963                                 return false;
 964                         }
 965                         text = $(this).find(":input:enabled").val();
 966                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "text": text }, function(data, textStatus) {
 967                                 if ((data != null) && data.success) {
 968                                         loadNewPost(data.postId);
 969                                 }
 970                         });
 971                         $(this).find(":input:enabled").val("").blur();
 972                         return false;
 973                 });
 974         });
 975
 976         /* ajaxify input field on “view Sone” page. */
 977         getTranslation("WebInterface.DefaultText.Message", function(defaultText) {
 978                 registerInputTextareaSwap("#sone #post-message input[name=text]", defaultText, "text", false, false);
 979                 $("#sone #post-message").submit(function() {
 980                         text = $(this).find(":input:enabled").val();
 981                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "recipient": getShownSoneId(), "text": text }, function(data, textStatus) {
 982                                 if ((data != null) && data.success) {
 983                                         loadNewPost(data.postId);
 984                                 }
 985                         });
 986                         $(this).find(":input:enabled").val("").blur();
 987                         return false;
 988                 });
 989         });
 990
 991         /* Ajaxifies all posts. */
 992         /* calling getTranslation here will cache the necessary values. */
 993         getTranslation("WebInterface.Confirmation.DeletePostButton", function(text) {
 994                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(text) {
 995                         getTranslation("WebInterface.DefaultText.Reply", function(text) {
 996                                 $("#sone .post").each(function() {
 997                                         ajaxifyPost(this);
 998                                 });
 999                         });
1000                 });
1001         });
1002
1003         /* hides all replies but the latest two. */
1004         if (!isViewPostPage()) {
1005                 getTranslation("WebInterface.ClickToShow.Replies", function(text) {
1006                         $("#sone .post .replies").each(function() {
1007                                 allReplies = $(this).find(".reply");
1008                                 if (allReplies.length > 2) {
1009                                         newHidden = false;
1010                                         for (replyIndex = 0; replyIndex < (allReplies.length - 2); ++replyIndex) {
1011                                                 $(allReplies[replyIndex]).addClass("hidden");
1012                                                 newHidden |= $(allReplies[replyIndex]).hasClass("new");
1013                                         }
1014                                         clickToShowElement = $("<div></div>").addClass("click-to-show");
1015                                         if (newHidden) {
1016                                                 clickToShowElement.addClass("new");
1017                                         }
1018                                         (function(clickToShowElement, allReplies, text) {
1019                                                 clickToShowElement.text(text);
1020                                                 clickToShowElement.click(function() {
1021                                                         allReplies.removeClass("hidden");
1022                                                         clickToShowElement.addClass("hidden");
1023                                                 });
1024                                         })(clickToShowElement, allReplies, text);
1025                                         $(allReplies[0]).before(clickToShowElement);
1026                                 }
1027                         });
1028                 });
1029         }
1030
1031         /*
1032          * convert all “follow”, “unfollow”, “lock”, and “unlock” links to something
1033          * nicer.
1034          */
1035         $("#sone .follow").submit(function() {
1036                 var followElement = this;
1037                 $.getJSON("followSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1038                         $(followElement).addClass("hidden");
1039                         $(followElement).parent().find(".unfollow").removeClass("hidden");
1040                 });
1041                 return false;
1042         });
1043         $("#sone .unfollow").submit(function() {
1044                 var unfollowElement = this;
1045                 $.getJSON("unfollowSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1046                         $(unfollowElement).addClass("hidden");
1047                         $(unfollowElement).parent().find(".follow").removeClass("hidden");
1048                 });
1049                 return false;
1050         });
1051         $("#sone .lock").submit(function() {
1052                 var lockElement = this;
1053                 $.getJSON("lockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1054                         $(lockElement).addClass("hidden");
1055                         $(lockElement).parent().find(".unlock").removeClass("hidden");
1056                 });
1057                 return false;
1058         });
1059         $("#sone .unlock").submit(function() {
1060                 var unlockElement = this;
1061                 $.getJSON("unlockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1062                         $(unlockElement).addClass("hidden");
1063                         $(unlockElement).parent().find(".lock").removeClass("hidden");
1064                 });
1065                 return false;
1066         });
1067
1068         /* process all existing notifications, ajaxify dismiss buttons. */
1069         $("#sone #notification-area .notification").each(function() {
1070                 ajaxifyNotification($(this));
1071         });
1072
1073         /* activate status polling. */
1074         setTimeout(getStatus, 5000);
1075
1076         /* reset activity counter when the page has focus. */
1077         $(window).focus(function() {
1078                 focus = true;
1079                 resetActivity();
1080         }).blur(function() {
1081                 focus = false;
1082         })
1083
1084 });