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         /* convert trust control buttons to javascript functions. */
 644         $(replyElement).find(".reply-trust").submit(function() {
 645                 trustSone(getReplyAuthor(this));
 646                 return false;
 647         });
 648         $(replyElement).find(".reply-distrust").submit(function() {
 649                 distrustSone(getReplyAuthor(this));
 650                 return false;
 651         });
 652         $(replyElement).find(".reply-untrust").submit(function() {
 653                 untrustSone(getReplyAuthor(this));
 654                 return false;
 655         });
 656
 657         /* mark post and all replies as known on click. */
 658         $(replyElement).click(function() {
 659                 markPostAsKnown(getPostElement(this));
 660         });
 661 }
 662
 663 /**
 664  * Ajaxifies the given notification by replacing the form with AJAX.
 665  *
 666  * @param notification
 667  *            jQuery object representing the notification.
 668  */
 669 function ajaxifyNotification(notification) {
 670         notification.find("form.dismiss").submit(function() {
 671                 return false;
 672         });
 673         notification.find("form.dismiss button").click(function() {
 674                 $.getJSON("dismissNotification.ajax", { "formPassword" : getFormPassword(), "notification" : notification.attr("id") }, function(data, textStatus) {
 675                         /* dismiss in case of error, too. */
 676                         notification.slideUp();
 677                 }, function(xmlHttpRequest, textStatus, error) {
 678                         /* ignore error. */
 679                 });
 680         });
 681         return notification;
 682 }
 683
 684 function getStatus() {
 685         $.getJSON("getStatus.ajax", {"loadAllSones": isKnownSonesPage()}, function(data, textStatus) {
 686                 if ((data != null) && data.success) {
 687                         /* process Sone information. */
 688                         $.each(data.sones, function(index, value) {
 689                                 updateSoneStatus(value.id, value.name, value.status, value.modified, value.locked, value.lastUpdated);
 690                         });
 691                         /* process notifications. */
 692                         $.each(data.notifications, function(index, value) {
 693                                 oldNotification = $("#sone #notification-area .notification#" + value.id);
 694                                 notification = ajaxifyNotification(createNotification(value.id, value.text, value.dismissable)).hide();
 695                                 if (oldNotification.length != 0) {
 696                                         oldNotification.replaceWith(notification.show());
 697                                 } else {
 698                                         $("#sone #notification-area").append(notification);
 699                                         notification.slideDown();
 700                                 }
 701                                 setActivity();
 702                         });
 703                         $.each(data.removedNotifications, function(index, value) {
 704                                 $("#sone #notification-area .notification#" + value.id).slideUp();
 705                         });
 706                         /* process new posts. */
 707                         $.each(data.newPosts, function(index, value) {
 708                                 loadNewPost(value);
 709                         });
 710                         /* process new replies. */
 711                         $.each(data.newReplies, function(index, value) {
 712                                 loadNewReply(value);
 713                         });
 714                         /* do it again in 5 seconds. */
 715                         setTimeout(getStatus, 5000);
 716                 } else {
 717                         /* data.success was false, wait 30 seconds. */
 718                         setTimeout(getStatus, 30000);
 719                 }
 720         }, function(xmlHttpRequest, textStatus, error) {
 721                 /* something really bad happend, wait a minute. */
 722                 setTimeout(getStatus, 60000);
 723         })
 724 }
 725
 726 /**
 727  * Returns the content of the page-id attribute.
 728  *
 729  * @returns The page ID
 730  */
 731 function getPageId() {
 732         return $("#sone .page-id").text();
 733 }
 734
 735 /**
 736  * Returns whether the current page is the index page.
 737  *
 738  * @returns {Boolean} <code>true</code> if the current page is the index page,
 739  *          <code>false</code> otherwise
 740  */
 741 function isIndexPage() {
 742         return getPageId() == "index";
 743 }
 744
 745 /**
 746  * Returns whether the current page is a “view Sone” page.
 747  *
 748  * @returns {Boolean} <code>true</code> if the current page is a “view Sone”
 749  *          page, <code>false</code> otherwise
 750  */
 751 function isViewSonePage() {
 752         return getPageId() == "view-sone";
 753 }
 754
 755 /**
 756  * Returns the ID of the currently shown Sone. This will only return a sensible
 757  * value if isViewSonePage() returns <code>true</code>.
 758  *
 759  * @returns The ID of the currently shown Sone
 760  */
 761 function getShownSoneId() {
 762         return $("#sone .sone-id").text();
 763 }
 764
 765 /**
 766  * Returns whether the current page is a “view post” page.
 767  *
 768  * @returns {Boolean} <code>true</code> if the current page is a “view post”
 769  *          page, <code>false</code> otherwise
 770  */
 771 function isViewPostPage() {
 772         return getPageId() == "view-post";
 773 }
 774
 775 /**
 776  * Returns the ID of the currently shown post. This will only return a sensible
 777  * value if isViewPostPage() returns <code>true</code>.
 778  *
 779  * @returns The ID of the currently shown post
 780  */
 781 function getShownPostId() {
 782         return $("#sone .post-id").text();
 783 }
 784
 785 /**
 786  * Returns whether the current page is the “known Sones” page.
 787  *
 788  * @returns {Boolean} <code>true</code> if the current page is the “known
 789  *          Sones” page, <code>false</code> otherwise
 790  */
 791 function isKnownSonesPage() {
 792         return getPageId() == "known-sones";
 793 }
 794
 795 /**
 796  * Returns whether a post with the given ID exists on the current page.
 797  *
 798  * @param postId
 799  *            The post ID to check for
 800  * @returns {Boolean} <code>true</code> if a post with the given ID already
 801  *          exists on the page, <code>false</code> otherwise
 802  */
 803 function hasPost(postId) {
 804         return $(".post#" + postId).length > 0;
 805 }
 806
 807 /**
 808  * Returns whether a reply with the given ID exists on the current page.
 809  *
 810  * @param replyId
 811  *            The reply ID to check for
 812  * @returns {Boolean} <code>true</code> if a reply with the given ID already
 813  *          exists on the page, <code>false</code> otherwise
 814  */
 815 function hasReply(replyId) {
 816         return $("#sone .reply#" + replyId).length > 0;
 817 }
 818
 819 function loadNewPost(postId) {
 820         if (hasPost(postId)) {
 821                 return;
 822         }
 823         $.getJSON("getPost.ajax", { "post" : postId }, function(data, textStatus) {
 824                 if ((data != null) && data.success) {
 825                         if (hasPost(data.post.id)) {
 826                                 return;
 827                         }
 828                         if (!isIndexPage() && !(isViewSonePage() && ((getShownSoneId() == data.post.sone) || (getShownSoneId() == data.post.recipient)))) {
 829                                 return;
 830                         }
 831                         var firstOlderPost = null;
 832                         $("#sone .post").each(function() {
 833                                 if (getPostTime(this) < data.post.time) {
 834                                         firstOlderPost = $(this);
 835                                         return false;
 836                                 }
 837                         });
 838                         newPost = $(data.post.html).addClass("hidden");
 839                         if (firstOlderPost != null) {
 840                                 newPost.insertBefore(firstOlderPost);
 841                         } else {
 842                                 $("#sone #posts").append(newPost);
 843                         }
 844                         ajaxifyPost(newPost);
 845                         newPost.slideDown();
 846                         setActivity();
 847                 }
 848         });
 849 }
 850
 851 function loadNewReply(replyId) {
 852         if (hasReply(replyId)) {
 853                 return;
 854         }
 855         $.getJSON("getReply.ajax", { "reply": replyId }, function(data, textStatus) {
 856                 /* find post. */
 857                 if ((data != null) && data.success) {
 858                         if (hasReply(data.reply.id)) {
 859                                 return;
 860                         }
 861                         $("#sone .post#" + data.reply.postId).each(function() {
 862                                 var firstNewerReply = null;
 863                                 $(this).find(".replies .reply").each(function() {
 864                                         if (getReplyTime(this) > data.reply.time) {
 865                                                 firstNewerReply = $(this);
 866                                                 return false;
 867                                         }
 868                                 });
 869                                 newReply = $(data.reply.html).addClass("hidden");
 870                                 if (firstNewerReply != null) {
 871                                         newReply.insertBefore(firstNewerReply);
 872                                 } else {
 873                                         if ($(this).find(".replies .create-reply")) {
 874                                                 $(this).find(".replies .create-reply").before(newReply);
 875                                         } else {
 876                                                 $(this).find(".replies").append(newReply);
 877                                         }
 878                                 }
 879                                 ajaxifyReply(newReply);
 880                                 newReply.slideDown();
 881                                 setActivity();
 882                                 return false;
 883                         });
 884                 }
 885         });
 886 }
 887
 888 function markPostAsKnown(postElements) {
 889         $(postElements).each(function() {
 890                 postElement = this;
 891                 if ($(postElement).hasClass("new")) {
 892                         (function(postElement) {
 893                                 $.getJSON("markPostAsKnown.ajax", {"formPassword": getFormPassword(), "post": getPostId(postElement)}, function(data, textStatus) {
 894                                         $(postElement).removeClass("new");
 895                                 });
 896                         })(postElement);
 897                 }
 898         });
 899         markReplyAsKnown($(postElements).find(".reply"));
 900 }
 901
 902 function markReplyAsKnown(replyElements) {
 903         $(replyElements).each(function() {
 904                 replyElement = this;
 905                 if ($(replyElement).hasClass("new")) {
 906                         (function(replyElement) {
 907                                 $.getJSON("markReplyAsKnown.ajax", {"formPassword": getFormPassword(), "reply": getReplyId(replyElement)}, function(data, textStatus) {
 908                                         $(replyElement).removeClass("new");
 909                                 });
 910                         })(replyElement);
 911                 }
 912         });
 913 }
 914
 915 function resetActivity() {
 916         title = document.title;
 917         if (title.indexOf('(') == 0) {
 918                 document.title = title.substr(title.indexOf(' ') + 1);
 919         }
 920 }
 921
 922 function setActivity() {
 923         if (!focus) {
 924                 title = document.title;
 925                 if (title.indexOf('(') != 0) {
 926                         document.title = "(!) " + title;
 927                 }
 928         }
 929 }
 930
 931 /**
 932  * Creates a new notification.
 933  *
 934  * @param id
 935  *            The ID of the notificaiton
 936  * @param text
 937  *            The text of the notification
 938  * @param dismissable
 939  *            <code>true</code> if the notification can be dismissed by the
 940  *            user
 941  */
 942 function createNotification(id, text, dismissable) {
 943         notification = $("<div></div>").addClass("notification").attr("id", id);
 944         if (dismissable) {
 945                 dismissForm = $("#sone #notification-area #notification-dismiss-template").clone().removeClass("hidden").removeAttr("id")
 946                 dismissForm.find("input[name=notification]").val(id);
 947                 notification.append(dismissForm);
 948         }
 949         notification.append(text);
 950         return notification;
 951 }
 952
 953 /**
 954  * Shows the details of the notification with the given ID.
 955  *
 956  * @param notificationId
 957  *            The ID of the notification
 958  */
 959 function showNotificationDetails(notificationId) {
 960         $("#sone .notification#" + notificationId + " .text").show();
 961         $("#sone .notification#" + notificationId + " .short-text").hide();
 962 }
 963
 964 //
 965 // EVERYTHING BELOW HERE IS EXECUTED AFTER LOADING THE PAGE
 966 //
 967
 968 var focus = true;
 969
 970 $(document).ready(function() {
 971
 972         /* this initializes the status update input field. */
 973         getTranslation("WebInterface.DefaultText.StatusUpdate", function(defaultText) {
 974                 registerInputTextareaSwap("#sone #update-status .status-input", defaultText, "text", false, false);
 975                 $("#sone #update-status").submit(function() {
 976                         if ($(this).find(":input.default:enabled").length > 0) {
 977                                 return false;
 978                         }
 979                         text = $(this).find(":input:enabled").val();
 980                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "text": text }, function(data, textStatus) {
 981                                 if ((data != null) && data.success) {
 982                                         loadNewPost(data.postId);
 983                                 }
 984                         });
 985                         $(this).find(":input:enabled").val("").blur();
 986                         return false;
 987                 });
 988         });
 989
 990         /* ajaxify input field on “view Sone” page. */
 991         getTranslation("WebInterface.DefaultText.Message", function(defaultText) {
 992                 registerInputTextareaSwap("#sone #post-message input[name=text]", defaultText, "text", false, false);
 993                 $("#sone #post-message").submit(function() {
 994                         text = $(this).find(":input:enabled").val();
 995                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "recipient": getShownSoneId(), "text": text }, function(data, textStatus) {
 996                                 if ((data != null) && data.success) {
 997                                         loadNewPost(data.postId);
 998                                 }
 999                         });
1000                         $(this).find(":input:enabled").val("").blur();
1001                         return false;
1002                 });
1003         });
1004
1005         /* Ajaxifies all posts. */
1006         /* calling getTranslation here will cache the necessary values. */
1007         getTranslation("WebInterface.Confirmation.DeletePostButton", function(text) {
1008                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(text) {
1009                         getTranslation("WebInterface.DefaultText.Reply", function(text) {
1010                                 $("#sone .post").each(function() {
1011                                         ajaxifyPost(this);
1012                                 });
1013                         });
1014                 });
1015         });
1016
1017         /* hides all replies but the latest two. */
1018         if (!isViewPostPage()) {
1019                 getTranslation("WebInterface.ClickToShow.Replies", function(text) {
1020                         $("#sone .post .replies").each(function() {
1021                                 allReplies = $(this).find(".reply");
1022                                 if (allReplies.length > 2) {
1023                                         newHidden = false;
1024                                         for (replyIndex = 0; replyIndex < (allReplies.length - 2); ++replyIndex) {
1025                                                 $(allReplies[replyIndex]).addClass("hidden");
1026                                                 newHidden |= $(allReplies[replyIndex]).hasClass("new");
1027                                         }
1028                                         clickToShowElement = $("<div></div>").addClass("click-to-show");
1029                                         if (newHidden) {
1030                                                 clickToShowElement.addClass("new");
1031                                         }
1032                                         (function(clickToShowElement, allReplies, text) {
1033                                                 clickToShowElement.text(text);
1034                                                 clickToShowElement.click(function() {
1035                                                         allReplies.removeClass("hidden");
1036                                                         clickToShowElement.addClass("hidden");
1037                                                 });
1038                                         })(clickToShowElement, allReplies, text);
1039                                         $(allReplies[0]).before(clickToShowElement);
1040                                 }
1041                         });
1042                 });
1043         }
1044
1045         /*
1046          * convert all “follow”, “unfollow”, “lock”, and “unlock” links to something
1047          * nicer.
1048          */
1049         $("#sone .follow").submit(function() {
1050                 var followElement = this;
1051                 $.getJSON("followSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1052                         $(followElement).addClass("hidden");
1053                         $(followElement).parent().find(".unfollow").removeClass("hidden");
1054                 });
1055                 return false;
1056         });
1057         $("#sone .unfollow").submit(function() {
1058                 var unfollowElement = this;
1059                 $.getJSON("unfollowSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1060                         $(unfollowElement).addClass("hidden");
1061                         $(unfollowElement).parent().find(".follow").removeClass("hidden");
1062                 });
1063                 return false;
1064         });
1065         $("#sone .lock").submit(function() {
1066                 var lockElement = this;
1067                 $.getJSON("lockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1068                         $(lockElement).addClass("hidden");
1069                         $(lockElement).parent().find(".unlock").removeClass("hidden");
1070                 });
1071                 return false;
1072         });
1073         $("#sone .unlock").submit(function() {
1074                 var unlockElement = this;
1075                 $.getJSON("unlockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1076                         $(unlockElement).addClass("hidden");
1077                         $(unlockElement).parent().find(".lock").removeClass("hidden");
1078                 });
1079                 return false;
1080         });
1081
1082         /* process all existing notifications, ajaxify dismiss buttons. */
1083         $("#sone #notification-area .notification").each(function() {
1084                 ajaxifyNotification($(this));
1085         });
1086
1087         /* activate status polling. */
1088         setTimeout(getStatus, 5000);
1089
1090         /* reset activity counter when the page has focus. */
1091         $(window).focus(function() {
1092                 focus = true;
1093                 resetActivity();
1094         }).blur(function() {
1095                 focus = false;
1096         })
1097
1098 });