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, getCurrentSoneId(), postId);
 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         $(postElement).click(function(event) {
 610                 if ($(event.target).hasClass("click-to-show")) {
 611                         return false;
 612                 }
 613                 markPostAsKnown(this);
 614         });
 615
 616         /* hide reply input field. */
 617         $(postElement).find(".create-reply").addClass("hidden");
 618 }
 619
 620 /**
 621  * Ajaxifies the given reply element.
 622  *
 623  * @param replyElement
 624  *            The reply element to ajaxify
 625  */
 626 function ajaxifyReply(replyElement) {
 627         $(replyElement).find(".like-reply").submit(function() {
 628                 likeReply(getReplyId(this));
 629                 markPostAsKnown(getPostElement(this));
 630                 return false;
 631         });
 632         $(replyElement).find(".unlike-reply").submit(function() {
 633                 unlikeReply(getReplyId(this));
 634                 markPostAsKnown(getPostElement(this));
 635                 return false;
 636         });
 637         (function(replyElement) {
 638                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(deleteReplyText) {
 639                         $(replyElement).find(".delete-reply button").each(function() {
 640                                 enhanceDeleteReplyButton(this, getReplyId(replyElement), deleteReplyText);
 641                         });
 642                 });
 643         })(replyElement);
 644         addCommentLink(getPostId(replyElement), replyElement, $(replyElement).find(".reply-status-line .time"));
 645
 646         /* convert trust control buttons to javascript functions. */
 647         $(replyElement).find(".reply-trust").submit(function() {
 648                 trustSone(getReplyAuthor(this));
 649                 return false;
 650         });
 651         $(replyElement).find(".reply-distrust").submit(function() {
 652                 distrustSone(getReplyAuthor(this));
 653                 return false;
 654         });
 655         $(replyElement).find(".reply-untrust").submit(function() {
 656                 untrustSone(getReplyAuthor(this));
 657                 return false;
 658         });
 659
 660         /* mark post and all replies as known on click. */
 661         $(replyElement).click(function() {
 662                 markPostAsKnown(getPostElement(this));
 663         });
 664 }
 665
 666 /**
 667  * Ajaxifies the given notification by replacing the form with AJAX.
 668  *
 669  * @param notification
 670  *            jQuery object representing the notification.
 671  */
 672 function ajaxifyNotification(notification) {
 673         notification.find("form.dismiss").submit(function() {
 674                 return false;
 675         });
 676         notification.find("form.dismiss button").click(function() {
 677                 $.getJSON("dismissNotification.ajax", { "formPassword" : getFormPassword(), "notification" : notification.attr("id") }, function(data, textStatus) {
 678                         /* dismiss in case of error, too. */
 679                         notification.slideUp();
 680                 }, function(xmlHttpRequest, textStatus, error) {
 681                         /* ignore error. */
 682                 });
 683         });
 684         return notification;
 685 }
 686
 687 function getStatus() {
 688         $.getJSON("getStatus.ajax", {"loadAllSones": isKnownSonesPage()}, function(data, textStatus) {
 689                 if ((data != null) && data.success) {
 690                         /* process Sone information. */
 691                         $.each(data.sones, function(index, value) {
 692                                 updateSoneStatus(value.id, value.name, value.status, value.modified, value.locked, value.lastUpdated);
 693                         });
 694                         /* process notifications. */
 695                         $.each(data.notifications, function(index, value) {
 696                                 oldNotification = $("#sone #notification-area .notification#" + value.id);
 697                                 notification = ajaxifyNotification(createNotification(value.id, value.text, value.dismissable)).hide();
 698                                 if (oldNotification.length != 0) {
 699                                         oldNotification.replaceWith(notification.show());
 700                                 } else {
 701                                         $("#sone #notification-area").append(notification);
 702                                         notification.slideDown();
 703                                 }
 704                                 setActivity();
 705                         });
 706                         $.each(data.removedNotifications, function(index, value) {
 707                                 $("#sone #notification-area .notification#" + value.id).slideUp();
 708                         });
 709                         /* process new posts. */
 710                         $.each(data.newPosts, function(index, value) {
 711                                 loadNewPost(value.id, value.sone, value.recipient, value.time);
 712                         });
 713                         /* process new replies. */
 714                         $.each(data.newReplies, function(index, value) {
 715                                 loadNewReply(value.id, value.sone, value.post, value.postSone);
 716                         });
 717                         /* do it again in 5 seconds. */
 718                         setTimeout(getStatus, 5000);
 719                 } else {
 720                         /* data.success was false, wait 30 seconds. */
 721                         setTimeout(getStatus, 30000);
 722                 }
 723         }, function(xmlHttpRequest, textStatus, error) {
 724                 /* something really bad happend, wait a minute. */
 725                 setTimeout(getStatus, 60000);
 726         })
 727 }
 728
 729 /**
 730  * Returns the ID of the currently logged in Sone.
 731  *
 732  * @return The ID of the current Sone, or an empty string if no Sone is logged
 733  *         in
 734  */
 735 function getCurrentSoneId() {
 736         return $("#currentSoneId").text();
 737 }
 738
 739 /**
 740  * Returns the content of the page-id attribute.
 741  *
 742  * @returns The page ID
 743  */
 744 function getPageId() {
 745         return $("#sone .page-id").text();
 746 }
 747
 748 /**
 749  * Returns whether the current page is the index page.
 750  *
 751  * @returns {Boolean} <code>true</code> if the current page is the index page,
 752  *          <code>false</code> otherwise
 753  */
 754 function isIndexPage() {
 755         return getPageId() == "index";
 756 }
 757
 758 /**
 759  * Returns whether the current page is a “view Sone” page.
 760  *
 761  * @returns {Boolean} <code>true</code> if the current page is a “view Sone”
 762  *          page, <code>false</code> otherwise
 763  */
 764 function isViewSonePage() {
 765         return getPageId() == "view-sone";
 766 }
 767
 768 /**
 769  * Returns the ID of the currently shown Sone. This will only return a sensible
 770  * value if isViewSonePage() returns <code>true</code>.
 771  *
 772  * @returns The ID of the currently shown Sone
 773  */
 774 function getShownSoneId() {
 775         return $("#sone .sone-id").text();
 776 }
 777
 778 /**
 779  * Returns whether the current page is a “view post” page.
 780  *
 781  * @returns {Boolean} <code>true</code> if the current page is a “view post”
 782  *          page, <code>false</code> otherwise
 783  */
 784 function isViewPostPage() {
 785         return getPageId() == "view-post";
 786 }
 787
 788 /**
 789  * Returns the ID of the currently shown post. This will only return a sensible
 790  * value if isViewPostPage() returns <code>true</code>.
 791  *
 792  * @returns The ID of the currently shown post
 793  */
 794 function getShownPostId() {
 795         return $("#sone .post-id").text();
 796 }
 797
 798 /**
 799  * Returns whether the current page is the “known Sones” page.
 800  *
 801  * @returns {Boolean} <code>true</code> if the current page is the “known
 802  *          Sones” page, <code>false</code> otherwise
 803  */
 804 function isKnownSonesPage() {
 805         return getPageId() == "known-sones";
 806 }
 807
 808 /**
 809  * Returns whether a post with the given ID exists on the current page.
 810  *
 811  * @param postId
 812  *            The post ID to check for
 813  * @returns {Boolean} <code>true</code> if a post with the given ID already
 814  *          exists on the page, <code>false</code> otherwise
 815  */
 816 function hasPost(postId) {
 817         return $(".post#" + postId).length > 0;
 818 }
 819
 820 /**
 821  * Returns whether a reply with the given ID exists on the current page.
 822  *
 823  * @param replyId
 824  *            The reply ID to check for
 825  * @returns {Boolean} <code>true</code> if a reply with the given ID already
 826  *          exists on the page, <code>false</code> otherwise
 827  */
 828 function hasReply(replyId) {
 829         return $("#sone .reply#" + replyId).length > 0;
 830 }
 831
 832 function loadNewPost(postId, soneId, recipientId, time) {
 833         if (hasPost(postId)) {
 834                 return;
 835         }
 836         if (!isIndexPage()) {
 837                 if (!isViewPostPage() || (getShownPostId() != postId)) {
 838                         if (!isViewSonePage() || ((getShownSoneId() != soneId) && (getShownSoneId() != recipientId))) {
 839                                 return;
 840                         }
 841                 }
 842         }
 843         if (getPostTime($("#sone .post").last()) > time) {
 844                 return;
 845         }
 846         $.getJSON("getPost.ajax", { "post" : postId }, function(data, textStatus) {
 847                 if ((data != null) && data.success) {
 848                         if (hasPost(data.post.id)) {
 849                                 return;
 850                         }
 851                         if (!isIndexPage() && !(isViewSonePage() && ((getShownSoneId() == data.post.sone) || (getShownSoneId() == data.post.recipient)))) {
 852                                 return;
 853                         }
 854                         var firstOlderPost = null;
 855                         $("#sone .post").each(function() {
 856                                 if (getPostTime(this) < data.post.time) {
 857                                         firstOlderPost = $(this);
 858                                         return false;
 859                                 }
 860                         });
 861                         newPost = $(data.post.html).addClass("hidden");
 862                         if (firstOlderPost != null) {
 863                                 newPost.insertBefore(firstOlderPost);
 864                         }
 865                         ajaxifyPost(newPost);
 866                         newPost.slideDown();
 867                         setActivity();
 868                 }
 869         });
 870 }
 871
 872 function loadNewReply(replyId, soneId, postId, postSoneId) {
 873         if (hasReply(replyId)) {
 874                 return;
 875         }
 876         if (!hasPost(postId)) {
 877                 return;
 878         }
 879         $.getJSON("getReply.ajax", { "reply": replyId }, function(data, textStatus) {
 880                 /* find post. */
 881                 if ((data != null) && data.success) {
 882                         if (hasReply(data.reply.id)) {
 883                                 return;
 884                         }
 885                         $("#sone .post#" + data.reply.postId).each(function() {
 886                                 var firstNewerReply = null;
 887                                 $(this).find(".replies .reply").each(function() {
 888                                         if (getReplyTime(this) > data.reply.time) {
 889                                                 firstNewerReply = $(this);
 890                                                 return false;
 891                                         }
 892                                 });
 893                                 newReply = $(data.reply.html).addClass("hidden");
 894                                 if (firstNewerReply != null) {
 895                                         newReply.insertBefore(firstNewerReply);
 896                                 } else {
 897                                         if ($(this).find(".replies .create-reply")) {
 898                                                 $(this).find(".replies .create-reply").before(newReply);
 899                                         } else {
 900                                                 $(this).find(".replies").append(newReply);
 901                                         }
 902                                 }
 903                                 ajaxifyReply(newReply);
 904                                 newReply.slideDown();
 905                                 setActivity();
 906                                 return false;
 907                         });
 908                 }
 909         });
 910 }
 911
 912 function markPostAsKnown(postElements) {
 913         $(postElements).each(function() {
 914                 postElement = this;
 915                 if ($(postElement).hasClass("new")) {
 916                         (function(postElement) {
 917                                 $.getJSON("markPostAsKnown.ajax", {"formPassword": getFormPassword(), "post": getPostId(postElement)}, function(data, textStatus) {
 918                                         $(postElement).removeClass("new");
 919                                         $(".click-to-show", postElement).removeClass("new");
 920                                 });
 921                         })(postElement);
 922                 }
 923         });
 924         markReplyAsKnown($(postElements).find(".reply"));
 925 }
 926
 927 function markReplyAsKnown(replyElements) {
 928         $(replyElements).each(function() {
 929                 replyElement = this;
 930                 if ($(replyElement).hasClass("new")) {
 931                         (function(replyElement) {
 932                                 $.getJSON("markReplyAsKnown.ajax", {"formPassword": getFormPassword(), "reply": getReplyId(replyElement)}, function(data, textStatus) {
 933                                         $(replyElement).removeClass("new");
 934                                 });
 935                         })(replyElement);
 936                 }
 937         });
 938 }
 939
 940 function resetActivity() {
 941         title = document.title;
 942         if (title.indexOf('(') == 0) {
 943                 document.title = title.substr(title.indexOf(' ') + 1);
 944         }
 945 }
 946
 947 function setActivity() {
 948         if (!focus) {
 949                 title = document.title;
 950                 if (title.indexOf('(') != 0) {
 951                         document.title = "(!) " + title;
 952                 }
 953         }
 954 }
 955
 956 /**
 957  * Creates a new notification.
 958  *
 959  * @param id
 960  *            The ID of the notificaiton
 961  * @param text
 962  *            The text of the notification
 963  * @param dismissable
 964  *            <code>true</code> if the notification can be dismissed by the
 965  *            user
 966  */
 967 function createNotification(id, text, dismissable) {
 968         notification = $("<div></div>").addClass("notification").attr("id", id);
 969         if (dismissable) {
 970                 dismissForm = $("#sone #notification-area #notification-dismiss-template").clone().removeClass("hidden").removeAttr("id")
 971                 dismissForm.find("input[name=notification]").val(id);
 972                 notification.append(dismissForm);
 973         }
 974         notification.append(text);
 975         return notification;
 976 }
 977
 978 /**
 979  * Shows the details of the notification with the given ID.
 980  *
 981  * @param notificationId
 982  *            The ID of the notification
 983  */
 984 function showNotificationDetails(notificationId) {
 985         $("#sone .notification#" + notificationId + " .text").show();
 986         $("#sone .notification#" + notificationId + " .short-text").hide();
 987 }
 988
 989 /**
 990  * Deletes the field with the given ID from the profile.
 991  *
 992  * @param fieldId
 993  *            The ID of the field to delete
 994  */
 995 function deleteProfileField(fieldId) {
 996         $.getJSON("deleteProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId}, function(data, textStatus) {
 997                 if (data && data.success) {
 998                         $("#sone .profile-field#" + data.field.id).slideUp();
 999                 }
1000         });
1001 }
1002
1003 /**
1004  * Renames a profile field.
1005  *
1006  * @param fieldId
1007  *            The ID of the field to rename
1008  * @param newName
1009  *            The new name of the field
1010  * @param successFunction
1011  *            Called when the renaming was successful
1012  */
1013 function editProfileField(fieldId, newName, successFunction) {
1014         $.getJSON("editProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId, "name": newName}, function(data, textStatus) {
1015                 if (data && data.success) {
1016                         successFunction();
1017                 }
1018         });
1019 }
1020
1021 /**
1022  * Moves the profile field with the given ID one slot in the given direction.
1023  *
1024  * @param fieldId
1025  *            The ID of the field to move
1026  * @param direction
1027  *            The direction to move in (“up” or “down”)
1028  * @param successFunction
1029  *            Function to call on success
1030  */
1031 function moveProfileField(fieldId, direction, successFunction) {
1032         $.getJSON("moveProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId, "direction": direction}, function(data, textStatus) {
1033                 if (data && data.success) {
1034                         successFunction();
1035                 }
1036         });
1037 }
1038
1039 /**
1040  * Moves the profile field with the given ID up one slot.
1041  *
1042  * @param fieldId
1043  *            The ID of the field to move
1044  * @param successFunction
1045  *            Function to call on success
1046  */
1047 function moveProfileFieldUp(fieldId, successFunction) {
1048         moveProfileField(fieldId, "up", successFunction);
1049 }
1050
1051 /**
1052  * Moves the profile field with the given ID down one slot.
1053  *
1054  * @param fieldId
1055  *            The ID of the field to move
1056  * @param successFunction
1057  *            Function to call on success
1058  */
1059 function moveProfileFieldDown(fieldId, successFunction) {
1060         moveProfileField(fieldId, "down", successFunction);
1061 }
1062
1063 //
1064 // EVERYTHING BELOW HERE IS EXECUTED AFTER LOADING THE PAGE
1065 //
1066
1067 var focus = true;
1068
1069 $(document).ready(function() {
1070
1071         /* this initializes the status update input field. */
1072         getTranslation("WebInterface.DefaultText.StatusUpdate", function(defaultText) {
1073                 registerInputTextareaSwap("#sone #update-status .status-input", defaultText, "text", false, false);
1074                 $("#sone #update-status").submit(function() {
1075                         if ($(this).find(":input.default:enabled").length > 0) {
1076                                 return false;
1077                         }
1078                         text = $(this).find(":input:enabled").val();
1079                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "text": text }, function(data, textStatus) {
1080                                 if ((data != null) && data.success) {
1081                                         loadNewPost(data.postId, getCurrentSoneId());
1082                                 }
1083                         });
1084                         $(this).find(":input:enabled").val("").blur();
1085                         return false;
1086                 });
1087         });
1088
1089         /* ajaxify input field on “view Sone” page. */
1090         getTranslation("WebInterface.DefaultText.Message", function(defaultText) {
1091                 registerInputTextareaSwap("#sone #post-message input[name=text]", defaultText, "text", false, false);
1092                 $("#sone #post-message").submit(function() {
1093                         text = $(this).find(":input:enabled").val();
1094                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "recipient": getShownSoneId(), "text": text }, function(data, textStatus) {
1095                                 if ((data != null) && data.success) {
1096                                         loadNewPost(data.postId, getCurrentSoneId());
1097                                 }
1098                         });
1099                         $(this).find(":input:enabled").val("").blur();
1100                         return false;
1101                 });
1102         });
1103
1104         /* Ajaxifies all posts. */
1105         /* calling getTranslation here will cache the necessary values. */
1106         getTranslation("WebInterface.Confirmation.DeletePostButton", function(text) {
1107                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(text) {
1108                         getTranslation("WebInterface.DefaultText.Reply", function(text) {
1109                                 $("#sone .post").each(function() {
1110                                         ajaxifyPost(this);
1111                                 });
1112                         });
1113                 });
1114         });
1115
1116         /* hides all replies but the latest two. */
1117         if (!isViewPostPage()) {
1118                 getTranslation("WebInterface.ClickToShow.Replies", function(text) {
1119                         $("#sone .post .replies").each(function() {
1120                                 allReplies = $(this).find(".reply");
1121                                 if (allReplies.length > 2) {
1122                                         newHidden = false;
1123                                         for (replyIndex = 0; replyIndex < (allReplies.length - 2); ++replyIndex) {
1124                                                 $(allReplies[replyIndex]).addClass("hidden");
1125                                                 newHidden |= $(allReplies[replyIndex]).hasClass("new");
1126                                         }
1127                                         clickToShowElement = $("<div></div>").addClass("click-to-show");
1128                                         if (newHidden) {
1129                                                 clickToShowElement.addClass("new");
1130                                         }
1131                                         (function(clickToShowElement, allReplies, text) {
1132                                                 clickToShowElement.text(text);
1133                                                 clickToShowElement.click(function() {
1134                                                         allReplies.removeClass("hidden");
1135                                                         clickToShowElement.addClass("hidden");
1136                                                 });
1137                                         })(clickToShowElement, allReplies, text);
1138                                         $(allReplies[0]).before(clickToShowElement);
1139                                 }
1140                         });
1141                 });
1142         }
1143
1144         /*
1145          * convert all “follow”, “unfollow”, “lock”, and “unlock” links to something
1146          * nicer.
1147          */
1148         $("#sone .follow").submit(function() {
1149                 var followElement = this;
1150                 $.getJSON("followSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1151                         $(followElement).addClass("hidden");
1152                         $(followElement).parent().find(".unfollow").removeClass("hidden");
1153                 });
1154                 return false;
1155         });
1156         $("#sone .unfollow").submit(function() {
1157                 var unfollowElement = this;
1158                 $.getJSON("unfollowSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1159                         $(unfollowElement).addClass("hidden");
1160                         $(unfollowElement).parent().find(".follow").removeClass("hidden");
1161                 });
1162                 return false;
1163         });
1164         $("#sone .lock").submit(function() {
1165                 var lockElement = this;
1166                 $.getJSON("lockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1167                         $(lockElement).addClass("hidden");
1168                         $(lockElement).parent().find(".unlock").removeClass("hidden");
1169                 });
1170                 return false;
1171         });
1172         $("#sone .unlock").submit(function() {
1173                 var unlockElement = this;
1174                 $.getJSON("unlockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1175                         $(unlockElement).addClass("hidden");
1176                         $(unlockElement).parent().find(".lock").removeClass("hidden");
1177                 });
1178                 return false;
1179         });
1180
1181         /* process all existing notifications, ajaxify dismiss buttons. */
1182         $("#sone #notification-area .notification").each(function() {
1183                 ajaxifyNotification($(this));
1184         });
1185
1186         /* activate status polling. */
1187         setTimeout(getStatus, 5000);
1188
1189         /* reset activity counter when the page has focus. */
1190         $(window).focus(function() {
1191                 focus = true;
1192                 resetActivity();
1193         }).blur(function() {
1194                 focus = false;
1195         })
1196
1197 });