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                         $(inputField.get(0).form).submit(function() {
  50                                 inputField.attr("disabled", "disabled");
  51                                 if (!optional && (textarea.val() == "")) {
  52                                         return false;
  53                                 }
  54                         });
  55                 })($(this), textarea);
  56         });
  57 }
  58
  59 /**
  60  * Adds a “comment” link to all status lines contained in the given element.
  61  *
  62  * @param postId
  63  *            The ID of the post
  64  * @param element
  65  *            The element to add a “comment” link to
  66  */
  67 function addCommentLink(postId, element, insertAfterThisElement) {
  68         if ($(element).find(".show-reply-form").length > 0) {
  69                 return;
  70         }
  71         commentElement = (function(postId) {
  72                 separator = $("<span> · </span>").addClass("separator");
  73                 var commentElement = $("<div><span>Comment</span></div>").addClass("show-reply-form").click(function() {
  74                         markPostAsKnown(getPostElement(this));
  75                         replyElement = $("#sone .post#" + postId + " .create-reply");
  76                         replyElement.removeClass("hidden");
  77                         replyElement.removeClass("light");
  78                         (function(replyElement) {
  79                                 replyElement.find("input.reply-input").blur(function() {
  80                                         if ($(this).hasClass("default")) {
  81                                                 replyElement.addClass("light");
  82                                         }
  83                                 }).focus(function() {
  84                                         replyElement.removeClass("light");
  85                                 });
  86                         })(replyElement);
  87                         replyElement.find("input.reply-input").focus();
  88                 });
  89                 return commentElement;
  90         })(postId);
  91         $(insertAfterThisElement).after(commentElement.clone(true));
  92         $(insertAfterThisElement).after(separator);
  93 }
  94
  95 var translations = {};
  96
  97 /**
  98  * Retrieves the translation for the given key and calls the callback function.
  99  * The callback function takes a single parameter, the translated string.
 100  *
 101  * @param key
 102  *            The key of the translation string
 103  * @param callback
 104  *            The callback function
 105  */
 106 function getTranslation(key, callback) {
 107         if (key in translations) {
 108                 callback(translations[key]);
 109                 return;
 110         }
 111         $.getJSON("getTranslation.ajax", {"key": key}, function(data, textStatus) {
 112                 if ((data != null) && data.success) {
 113                         translations[key] = data.value;
 114                         callback(data.value);
 115                 }
 116         }, function(xmlHttpRequest, textStatus, error) {
 117                 /* ignore error. */
 118         });
 119 }
 120
 121 /**
 122  * Filters the given Sone ID, replacing all “~” characters by an underscore.
 123  *
 124  * @param soneId
 125  *            The Sone ID to filter
 126  * @returns The filtered Sone ID
 127  */
 128 function filterSoneId(soneId) {
 129         return soneId.replace(/[^a-zA-Z0-9-]/g, "_");
 130 }
 131
 132 /**
 133  * Updates the status of the given Sone.
 134  *
 135  * @param soneId
 136  *            The ID of the Sone to update
 137  * @param status
 138  *            The status of the Sone (“idle”, “unknown”, “inserting”,
 139  *            “downloading”)
 140  * @param modified
 141  *            Whether the Sone is modified
 142  * @param locked
 143  *            Whether the Sone is locked
 144  * @param lastUpdated
 145  *            The date and time of the last update (formatted for display)
 146  */
 147 function updateSoneStatus(soneId, name, status, modified, locked, lastUpdated) {
 148         $("#sone .sone." + filterSoneId(soneId)).
 149                 toggleClass("unknown", status == "unknown").
 150                 toggleClass("idle", status == "idle").
 151                 toggleClass("inserting", status == "inserting").
 152                 toggleClass("downloading", status == "downloading").
 153                 toggleClass("modified", modified);
 154         $("#sone .sone." + filterSoneId(soneId) + " .lock").toggleClass("hidden", locked);
 155         $("#sone .sone." + filterSoneId(soneId) + " .unlock").toggleClass("hidden", !locked);
 156         $("#sone .sone." + filterSoneId(soneId) + " .last-update span.time").text(lastUpdated);
 157         $("#sone .sone." + filterSoneId(soneId) + " .profile-link a").text(name);
 158 }
 159
 160 /**
 161  * Enhances a “delete” button so that the confirmation is done on the same page.
 162  *
 163  * @param button
 164  *            The button element
 165  * @param text
 166  *            The text to show on the button
 167  * @param deleteCallback
 168  *            The callback that actually deletes something
 169  */
 170 function enhanceDeleteButton(button, text, deleteCallback) {
 171         (function(button) {
 172                 newButton = $("<button></button>").addClass("confirm").hide().text(text).click(function() {
 173                         $(this).fadeOut("slow");
 174                         deleteCallback();
 175                         return false;
 176                 }).insertAfter(button);
 177                 (function(button, newButton) {
 178                         button.click(function() {
 179                                 button.fadeOut("slow", function() {
 180                                         newButton.fadeIn("slow");
 181                                         $(document).one("click", function() {
 182                                                 if (this != newButton.get(0)) {
 183                                                         newButton.fadeOut(function() {
 184                                                                 button.fadeIn();
 185                                                         });
 186                                                 }
 187                                         });
 188                                 });
 189                                 return false;
 190                         });
 191                 })(button, newButton);
 192         })($(button));
 193 }
 194
 195 /**
 196  * Enhances a post’s “delete” button.
 197  *
 198  * @param button
 199  *            The button element
 200  * @param postId
 201  *            The ID of the post to delete
 202  * @param text
 203  *            The text to replace the button with
 204  */
 205 function enhanceDeletePostButton(button, postId, text) {
 206         enhanceDeleteButton(button, text, function() {
 207                 $.getJSON("deletePost.ajax", { "post": postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 208                         if (data == null) {
 209                                 return;
 210                         }
 211                         if (data.success) {
 212                                 $("#sone .post#" + postId).slideUp();
 213                         } else if (data.error == "invalid-post-id") {
 214                                 alert("Invalid post ID given!");
 215                         } else if (data.error == "auth-required") {
 216                                 alert("You need to be logged in.");
 217                         } else if (data.error == "not-authorized") {
 218                                 alert("You are not allowed to delete this post.");
 219                         }
 220                 }, function(xmlHttpRequest, textStatus, error) {
 221                         /* ignore error. */
 222                 });
 223         });
 224 }
 225
 226 /**
 227  * Enhances a reply’s “delete” button.
 228  *
 229  * @param button
 230  *            The button element
 231  * @param replyId
 232  *            The ID of the reply to delete
 233  * @param text
 234  *            The text to replace the button with
 235  */
 236 function enhanceDeleteReplyButton(button, replyId, text) {
 237         enhanceDeleteButton(button, text, function() {
 238                 $.getJSON("deleteReply.ajax", { "reply": replyId, "formPassword": $("#sone #formPassword").text() }, function(data, textStatus) {
 239                         if (data == null) {
 240                                 return;
 241                         }
 242                         if (data.success) {
 243                                 $("#sone .reply#" + replyId).slideUp();
 244                         } else if (data.error == "invalid-reply-id") {
 245                                 alert("Invalid reply ID given!");
 246                         } else if (data.error == "auth-required") {
 247                                 alert("You need to be logged in.");
 248                         } else if (data.error == "not-authorized") {
 249                                 alert("You are not allowed to delete this reply.");
 250                         }
 251                 }, function(xmlHttpRequest, textStatus, error) {
 252                         /* ignore error. */
 253                 });
 254         });
 255 }
 256
 257 function getFormPassword() {
 258         return $("#sone #formPassword").text();
 259 }
 260
 261 function getSoneElement(element) {
 262         return $(element).closest(".sone");
 263 }
 264
 265 /**
 266  * Generates a list of Sones by concatening the names of the given sones with a
 267  * new line character (“\n”).
 268  *
 269  * @param sones
 270  *            The sones to format
 271  * @returns {String} The created string
 272  */
 273 function generateSoneList(sones) {
 274         var soneList = "";
 275         $.each(sones, function() {
 276                 if (soneList != "") {
 277                         soneList += ", ";
 278                 }
 279                 soneList += this.name;
 280         });
 281         return soneList;
 282 }
 283
 284 /**
 285  * Returns the ID of the Sone that this element belongs to.
 286  *
 287  * @param element
 288  *            The element to locate the matching Sone ID for
 289  * @returns The ID of the Sone, or undefined
 290  */
 291 function getSoneId(element) {
 292         return getSoneElement(element).find(".id").text();
 293 }
 294
 295 function getPostElement(element) {
 296         return $(element).closest(".post");
 297 }
 298
 299 function getPostId(element) {
 300         return getPostElement(element).attr("id");
 301 }
 302
 303 function getPostTime(element) {
 304         return getPostElement(element).find(".post-time").text();
 305 }
 306
 307 /**
 308  * Returns the author of the post the given element belongs to.
 309  *
 310  * @param element
 311  *            The element whose post to get the author for
 312  * @returns The ID of the authoring Sone
 313  */
 314 function getPostAuthor(element) {
 315         return getPostElement(element).find(".post-author").text();
 316 }
 317
 318 function getReplyElement(element) {
 319         return $(element).closest(".reply");
 320 }
 321
 322 function getReplyId(element) {
 323         return getReplyElement(element).attr("id");
 324 }
 325
 326 function getReplyTime(element) {
 327         return getReplyElement(element).find(".reply-time").text();
 328 }
 329
 330 /**
 331  * Returns the author of the reply the given element belongs to.
 332  *
 333  * @param element
 334  *            The element whose reply to get the author for
 335  * @returns The ID of the authoring Sone
 336  */
 337 function getReplyAuthor(element) {
 338         return getReplyElement(element).find(".reply-author").text();
 339 }
 340
 341 function likePost(postId) {
 342         $.getJSON("like.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 343                 if ((data == null) || !data.success) {
 344                         return;
 345                 }
 346                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").addClass("hidden");
 347                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").removeClass("hidden");
 348                 updatePostLikes(postId);
 349         }, function(xmlHttpRequest, textStatus, error) {
 350                 /* ignore error. */
 351         });
 352 }
 353
 354 function unlikePost(postId) {
 355         $.getJSON("unlike.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
 356                 if ((data == null) || !data.success) {
 357                         return;
 358                 }
 359                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").addClass("hidden");
 360                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").removeClass("hidden");
 361                 updatePostLikes(postId);
 362         }, function(xmlHttpRequest, textStatus, error) {
 363                 /* ignore error. */
 364         });
 365 }
 366
 367 function updatePostLikes(postId) {
 368         $.getJSON("getLikes.ajax", { "type": "post", "post": postId }, function(data, textStatus) {
 369                 if ((data != null) && data.success) {
 370                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes").toggleClass("hidden", data.likes == 0)
 371                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes span.like-count").text(data.likes);
 372                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes > span").attr("title", generateSoneList(data.sones));
 373                 }
 374         }, function(xmlHttpRequest, textStatus, error) {
 375                 /* ignore error. */
 376         });
 377 }
 378
 379 function likeReply(replyId) {
 380         $.getJSON("like.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
 381                 if ((data == null) || !data.success) {
 382                         return;
 383                 }
 384                 $("#sone .reply#" + replyId + " .status-line .like").addClass("hidden");
 385                 $("#sone .reply#" + replyId + " .status-line .unlike").removeClass("hidden");
 386                 updateReplyLikes(replyId);
 387         }, function(xmlHttpRequest, textStatus, error) {
 388                 /* ignore error. */
 389         });
 390 }
 391
 392 function unlikeReply(replyId) {
 393         $.getJSON("unlike.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
 394                 if ((data == null) || !data.success) {
 395                         return;
 396                 }
 397                 $("#sone .reply#" + replyId + " .status-line .unlike").addClass("hidden");
 398                 $("#sone .reply#" + replyId + " .status-line .like").removeClass("hidden");
 399                 updateReplyLikes(replyId);
 400         }, function(xmlHttpRequest, textStatus, error) {
 401                 /* ignore error. */
 402         });
 403 }
 404
 405 /**
 406  * Trusts the Sone with the given ID.
 407  *
 408  * @param soneId
 409  *            The ID of the Sone to trust
 410  */
 411 function trustSone(soneId) {
 412         $.getJSON("trustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 413                 if ((data != null) && data.success) {
 414                         updateTrustControls(soneId, data.trustValue);
 415                 }
 416         });
 417 }
 418
 419 /**
 420  * Distrusts the Sone with the given ID, i.e. assigns a negative trust value.
 421  *
 422  * @param soneId
 423  *            The ID of the Sone to distrust
 424  */
 425 function distrustSone(soneId) {
 426         $.getJSON("distrustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 427                 if ((data != null) && data.success) {
 428                         updateTrustControls(soneId, data.trustValue);
 429                 }
 430         });
 431 }
 432
 433 /**
 434  * Untrusts the Sone with the given ID, i.e. removes any trust assignment.
 435  *
 436  * @param soneId
 437  *            The ID of the Sone to untrust
 438  */
 439 function untrustSone(soneId) {
 440         $.getJSON("untrustSone.ajax", { "formPassword" : getFormPassword(), "sone" : soneId }, function(data, textStatus) {
 441                 if ((data != null) && data.success) {
 442                         updateTrustControls(soneId, data.trustValue);
 443                 }
 444         });
 445 }
 446
 447 /**
 448  * Updates the trust controls for all posts and replies of the given Sone,
 449  * according to the given trust value.
 450  *
 451  * @param soneId
 452  *            The ID of the Sone to update all trust controls for
 453  * @param trustValue
 454  *            The trust value for the Sone
 455  */
 456 function updateTrustControls(soneId, trustValue) {
 457         $("#sone .post").each(function() {
 458                 if (getPostAuthor(this) == soneId) {
 459                         getPostElement(this).find(".post-trust").toggleClass("hidden", trustValue != null);
 460                         getPostElement(this).find(".post-distrust").toggleClass("hidden", (trustValue != null) && (trustValue < 0));
 461                         getPostElement(this).find(".post-untrust").toggleClass("hidden", trustValue == null);
 462                 }
 463         });
 464         $("#sone .reply").each(function() {
 465                 if (getReplyAuthor(this) == soneId) {
 466                         getReplyElement(this).find(".reply-trust").toggleClass("hidden", trustValue != null);
 467                         getReplyElement(this).find(".reply-distrust").toggleClass("hidden", (trustValue != null) && (trustValue < 0));
 468                         getReplyElement(this).find(".reply-untrust").toggleClass("hidden", trustValue == null);
 469                 }
 470         });
 471 }
 472
 473 function updateReplyLikes(replyId) {
 474         $.getJSON("getLikes.ajax", { "type": "reply", "reply": replyId }, function(data, textStatus) {
 475                 if ((data != null) && data.success) {
 476                         $("#sone .reply#" + replyId + " .status-line .likes").toggleClass("hidden", data.likes == 0)
 477                         $("#sone .reply#" + replyId + " .status-line .likes span.like-count").text(data.likes);
 478                         $("#sone .reply#" + replyId + " .status-line .likes > span").attr("title", generateSoneList(data.sones));
 479                 }
 480         }, function(xmlHttpRequest, textStatus, error) {
 481                 /* ignore error. */
 482         });
 483 }
 484
 485 /**
 486  * Posts a reply and calls the given callback when the request finishes.
 487  *
 488  * @param postId
 489  *            The ID of the post the reply refers to
 490  * @param text
 491  *            The text to post
 492  * @param callbackFunction
 493  *            The callback function to call when the request finishes (takes 3
 494  *            parameters: success, error, replyId)
 495  */
 496 function postReply(postId, text, callbackFunction) {
 497         $.getJSON("createReply.ajax", { "formPassword" : getFormPassword(), "post" : postId, "text": text }, function(data, textStatus) {
 498                 if (data == null) {
 499                         /* TODO - show error */
 500                         return;
 501                 }
 502                 if (data.success) {
 503                         callbackFunction(true, null, data.reply);
 504                 } else {
 505                         callbackFunction(false, data.error);
 506                 }
 507         }, function(xmlHttpRequest, textStatus, error) {
 508                 /* ignore error. */
 509         });
 510 }
 511
 512 /**
 513  * Requests information about the reply with the given ID.
 514  *
 515  * @param replyId
 516  *            The ID of the reply
 517  * @param callbackFunction
 518  *            A callback function (parameters soneId, soneName, replyTime,
 519  *            replyDisplayTime, text, html)
 520  */
 521 function getReply(replyId, callbackFunction) {
 522         $.getJSON("getReply.ajax", { "reply" : replyId }, function(data, textStatus) {
 523                 if ((data != null) && data.success) {
 524                         callbackFunction(data.soneId, data.soneName, data.time, data.displayTime, data.text, data.html);
 525                 }
 526         }, function(xmlHttpRequest, textStatus, error) {
 527                 /* ignore error. */
 528         });
 529 }
 530
 531 /**
 532  * Ajaxifies the given post by enhancing all eligible elements with AJAX.
 533  *
 534  * @param postElement
 535  *            The post element to ajaxify
 536  */
 537 function ajaxifyPost(postElement) {
 538         $(postElement).find("form").submit(function() {
 539                 return false;
 540         });
 541         $(postElement).find(".create-reply button:submit").click(function() {
 542                 inputField = $(this.form).find(":input:enabled").get(0);
 543                 postId = getPostId(this);
 544                 text = $(inputField).val();
 545                 (function(postId, text, inputField) {
 546                         postReply(postId, text, function(success, error, replyId) {
 547                                 if (success) {
 548                                         $(inputField).val("");
 549                                         loadNewReply(replyId, getCurrentSoneId(), postId);
 550                                         markPostAsKnown(getPostElement(inputField));
 551                                         $("#sone .post#" + postId + " .create-reply").addClass("hidden");
 552                                 } else {
 553                                         alert(error);
 554                                 }
 555                         });
 556                 })(postId, text, inputField);
 557                 return false;
 558         });
 559
 560         /* replace all “delete” buttons with javascript. */
 561         (function(postElement) {
 562                 getTranslation("WebInterface.Confirmation.DeletePostButton", function(deletePostText) {
 563                         postId = getPostId(postElement);
 564                         enhanceDeletePostButton($(postElement).find(".delete-post button"), postId, deletePostText);
 565                 });
 566         })(postElement);
 567
 568         /* convert all “like” buttons to javascript functions. */
 569         $(postElement).find(".like-post").submit(function() {
 570                 likePost(getPostId(this));
 571                 markPostAsKnown(getPostElement(this));
 572                 return false;
 573         });
 574         $(postElement).find(".unlike-post").submit(function() {
 575                 unlikePost(getPostId(this));
 576                 markPostAsKnown(getPostElement(this));
 577                 return false;
 578         });
 579
 580         /* convert trust control buttons to javascript functions. */
 581         $(postElement).find(".post-trust").submit(function() {
 582                 trustSone(getPostAuthor(this));
 583                 return false;
 584         });
 585         $(postElement).find(".post-distrust").submit(function() {
 586                 distrustSone(getPostAuthor(this));
 587                 return false;
 588         });
 589         $(postElement).find(".post-untrust").submit(function() {
 590                 untrustSone(getPostAuthor(this));
 591                 return false;
 592         });
 593
 594         /* add “comment” link. */
 595         addCommentLink(getPostId(postElement), postElement, $(postElement).find(".post-status-line .time"));
 596
 597         /* process all replies. */
 598         $(postElement).find(".reply").each(function() {
 599                 ajaxifyReply(this);
 600         });
 601
 602         /* process reply input fields. */
 603         getTranslation("WebInterface.DefaultText.Reply", function(text) {
 604                 $(postElement).find("input.reply-input").each(function() {
 605                         registerInputTextareaSwap(this, text, "text", false, false);
 606                 });
 607         });
 608
 609         /* mark everything as known on click. */
 610         $(postElement).click(function(event) {
 611                 if ($(event.target).hasClass("click-to-show")) {
 612                         return false;
 613                 }
 614                 markPostAsKnown(this);
 615         });
 616
 617         /* hide reply input field. */
 618         $(postElement).find(".create-reply").addClass("hidden");
 619 }
 620
 621 /**
 622  * Ajaxifies the given reply element.
 623  *
 624  * @param replyElement
 625  *            The reply element to ajaxify
 626  */
 627 function ajaxifyReply(replyElement) {
 628         $(replyElement).find(".like-reply").submit(function() {
 629                 likeReply(getReplyId(this));
 630                 markPostAsKnown(getPostElement(this));
 631                 return false;
 632         });
 633         $(replyElement).find(".unlike-reply").submit(function() {
 634                 unlikeReply(getReplyId(this));
 635                 markPostAsKnown(getPostElement(this));
 636                 return false;
 637         });
 638         (function(replyElement) {
 639                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(deleteReplyText) {
 640                         $(replyElement).find(".delete-reply button").each(function() {
 641                                 enhanceDeleteReplyButton(this, getReplyId(replyElement), deleteReplyText);
 642                         });
 643                 });
 644         })(replyElement);
 645         addCommentLink(getPostId(replyElement), replyElement, $(replyElement).find(".reply-status-line .time"));
 646
 647         /* convert trust control buttons to javascript functions. */
 648         $(replyElement).find(".reply-trust").submit(function() {
 649                 trustSone(getReplyAuthor(this));
 650                 return false;
 651         });
 652         $(replyElement).find(".reply-distrust").submit(function() {
 653                 distrustSone(getReplyAuthor(this));
 654                 return false;
 655         });
 656         $(replyElement).find(".reply-untrust").submit(function() {
 657                 untrustSone(getReplyAuthor(this));
 658                 return false;
 659         });
 660
 661         /* mark post and all replies as known on click. */
 662         $(replyElement).click(function() {
 663                 markPostAsKnown(getPostElement(this));
 664         });
 665 }
 666
 667 /**
 668  * Ajaxifies the given notification by replacing the form with AJAX.
 669  *
 670  * @param notification
 671  *            jQuery object representing the notification.
 672  */
 673 function ajaxifyNotification(notification) {
 674         notification.find("form.dismiss").submit(function() {
 675                 return false;
 676         });
 677         notification.find("form.dismiss button").click(function() {
 678                 $.getJSON("dismissNotification.ajax", { "formPassword" : getFormPassword(), "notification" : notification.attr("id") }, function(data, textStatus) {
 679                         /* dismiss in case of error, too. */
 680                         notification.slideUp();
 681                 }, function(xmlHttpRequest, textStatus, error) {
 682                         /* ignore error. */
 683                 });
 684         });
 685         return notification;
 686 }
 687
 688 function getStatus() {
 689         $.getJSON("getStatus.ajax", {"loadAllSones": isKnownSonesPage()}, function(data, textStatus) {
 690                 if ((data != null) && data.success) {
 691                         /* process Sone information. */
 692                         $.each(data.sones, function(index, value) {
 693                                 updateSoneStatus(value.id, value.name, value.status, value.modified, value.locked, value.lastUpdated);
 694                         });
 695                         /* process notifications. */
 696                         $.each(data.notifications, function(index, value) {
 697                                 oldNotification = $("#sone #notification-area .notification#" + value.id);
 698                                 notification = ajaxifyNotification(createNotification(value.id, value.text, value.dismissable)).hide();
 699                                 if (oldNotification.length != 0) {
 700                                         oldNotification.replaceWith(notification.show());
 701                                 } else {
 702                                         $("#sone #notification-area").append(notification);
 703                                         notification.slideDown();
 704                                 }
 705                                 setActivity();
 706                         });
 707                         $.each(data.removedNotifications, function(index, value) {
 708                                 $("#sone #notification-area .notification#" + value.id).slideUp();
 709                         });
 710                         /* process new posts. */
 711                         $.each(data.newPosts, function(index, value) {
 712                                 loadNewPost(value.id, value.sone, value.recipient, value.time);
 713                         });
 714                         /* process new replies. */
 715                         $.each(data.newReplies, function(index, value) {
 716                                 loadNewReply(value.id, value.sone, value.post, value.postSone);
 717                         });
 718                         /* do it again in 5 seconds. */
 719                         setTimeout(getStatus, 5000);
 720                 } else {
 721                         /* data.success was false, wait 30 seconds. */
 722                         setTimeout(getStatus, 30000);
 723                 }
 724         }, function(xmlHttpRequest, textStatus, error) {
 725                 /* something really bad happend, wait a minute. */
 726                 setTimeout(getStatus, 60000);
 727         })
 728 }
 729
 730 /**
 731  * Returns the ID of the currently logged in Sone.
 732  *
 733  * @return The ID of the current Sone, or an empty string if no Sone is logged
 734  *         in
 735  */
 736 function getCurrentSoneId() {
 737         return $("#currentSoneId").text();
 738 }
 739
 740 /**
 741  * Returns the content of the page-id attribute.
 742  *
 743  * @returns The page ID
 744  */
 745 function getPageId() {
 746         return $("#sone .page-id").text();
 747 }
 748
 749 /**
 750  * Returns whether the current page is the index page.
 751  *
 752  * @returns {Boolean} <code>true</code> if the current page is the index page,
 753  *          <code>false</code> otherwise
 754  */
 755 function isIndexPage() {
 756         return getPageId() == "index";
 757 }
 758
 759 /**
 760  * Returns whether the current page is a “view Sone” page.
 761  *
 762  * @returns {Boolean} <code>true</code> if the current page is a “view Sone”
 763  *          page, <code>false</code> otherwise
 764  */
 765 function isViewSonePage() {
 766         return getPageId() == "view-sone";
 767 }
 768
 769 /**
 770  * Returns the ID of the currently shown Sone. This will only return a sensible
 771  * value if isViewSonePage() returns <code>true</code>.
 772  *
 773  * @returns The ID of the currently shown Sone
 774  */
 775 function getShownSoneId() {
 776         return $("#sone .sone-id").text();
 777 }
 778
 779 /**
 780  * Returns whether the current page is a “view post” page.
 781  *
 782  * @returns {Boolean} <code>true</code> if the current page is a “view post”
 783  *          page, <code>false</code> otherwise
 784  */
 785 function isViewPostPage() {
 786         return getPageId() == "view-post";
 787 }
 788
 789 /**
 790  * Returns the ID of the currently shown post. This will only return a sensible
 791  * value if isViewPostPage() returns <code>true</code>.
 792  *
 793  * @returns The ID of the currently shown post
 794  */
 795 function getShownPostId() {
 796         return $("#sone .post-id").text();
 797 }
 798
 799 /**
 800  * Returns whether the current page is the “known Sones” page.
 801  *
 802  * @returns {Boolean} <code>true</code> if the current page is the “known
 803  *          Sones” page, <code>false</code> otherwise
 804  */
 805 function isKnownSonesPage() {
 806         return getPageId() == "known-sones";
 807 }
 808
 809 /**
 810  * Returns whether a post with the given ID exists on the current page.
 811  *
 812  * @param postId
 813  *            The post ID to check for
 814  * @returns {Boolean} <code>true</code> if a post with the given ID already
 815  *          exists on the page, <code>false</code> otherwise
 816  */
 817 function hasPost(postId) {
 818         return $(".post#" + postId).length > 0;
 819 }
 820
 821 /**
 822  * Returns whether a reply with the given ID exists on the current page.
 823  *
 824  * @param replyId
 825  *            The reply ID to check for
 826  * @returns {Boolean} <code>true</code> if a reply with the given ID already
 827  *          exists on the page, <code>false</code> otherwise
 828  */
 829 function hasReply(replyId) {
 830         return $("#sone .reply#" + replyId).length > 0;
 831 }
 832
 833 function loadNewPost(postId, soneId, recipientId, time) {
 834         if (hasPost(postId)) {
 835                 return;
 836         }
 837         if (!isIndexPage()) {
 838                 if (!isViewPostPage() || (getShownPostId() != postId)) {
 839                         if (!isViewSonePage() || ((getShownSoneId() != soneId) && (getShownSoneId() != recipientId))) {
 840                                 return;
 841                         }
 842                 }
 843         }
 844         if (getPostTime($("#sone .post").last()) > time) {
 845                 return;
 846         }
 847         $.getJSON("getPost.ajax", { "post" : postId }, function(data, textStatus) {
 848                 if ((data != null) && data.success) {
 849                         if (hasPost(data.post.id)) {
 850                                 return;
 851                         }
 852                         if (!isIndexPage() && !(isViewSonePage() && ((getShownSoneId() == data.post.sone) || (getShownSoneId() == data.post.recipient)))) {
 853                                 return;
 854                         }
 855                         var firstOlderPost = null;
 856                         $("#sone .post").each(function() {
 857                                 if (getPostTime(this) < data.post.time) {
 858                                         firstOlderPost = $(this);
 859                                         return false;
 860                                 }
 861                         });
 862                         newPost = $(data.post.html).addClass("hidden");
 863                         if (firstOlderPost != null) {
 864                                 newPost.insertBefore(firstOlderPost);
 865                         }
 866                         ajaxifyPost(newPost);
 867                         newPost.slideDown();
 868                         setActivity();
 869                 }
 870         });
 871 }
 872
 873 function loadNewReply(replyId, soneId, postId, postSoneId) {
 874         if (hasReply(replyId)) {
 875                 return;
 876         }
 877         if (!hasPost(postId)) {
 878                 return;
 879         }
 880         $.getJSON("getReply.ajax", { "reply": replyId }, function(data, textStatus) {
 881                 /* find post. */
 882                 if ((data != null) && data.success) {
 883                         if (hasReply(data.reply.id)) {
 884                                 return;
 885                         }
 886                         $("#sone .post#" + data.reply.postId).each(function() {
 887                                 var firstNewerReply = null;
 888                                 $(this).find(".replies .reply").each(function() {
 889                                         if (getReplyTime(this) > data.reply.time) {
 890                                                 firstNewerReply = $(this);
 891                                                 return false;
 892                                         }
 893                                 });
 894                                 newReply = $(data.reply.html).addClass("hidden");
 895                                 if (firstNewerReply != null) {
 896                                         newReply.insertBefore(firstNewerReply);
 897                                 } else {
 898                                         if ($(this).find(".replies .create-reply")) {
 899                                                 $(this).find(".replies .create-reply").before(newReply);
 900                                         } else {
 901                                                 $(this).find(".replies").append(newReply);
 902                                         }
 903                                 }
 904                                 ajaxifyReply(newReply);
 905                                 newReply.slideDown();
 906                                 setActivity();
 907                                 return false;
 908                         });
 909                 }
 910         });
 911 }
 912
 913 function markPostAsKnown(postElements) {
 914         $(postElements).each(function() {
 915                 postElement = this;
 916                 if ($(postElement).hasClass("new")) {
 917                         (function(postElement) {
 918                                 $.getJSON("markPostAsKnown.ajax", {"formPassword": getFormPassword(), "post": getPostId(postElement)}, function(data, textStatus) {
 919                                         $(postElement).removeClass("new");
 920                                         $(".click-to-show", postElement).removeClass("new");
 921                                 });
 922                         })(postElement);
 923                 }
 924         });
 925         markReplyAsKnown($(postElements).find(".reply"));
 926 }
 927
 928 function markReplyAsKnown(replyElements) {
 929         $(replyElements).each(function() {
 930                 replyElement = this;
 931                 if ($(replyElement).hasClass("new")) {
 932                         (function(replyElement) {
 933                                 $.getJSON("markReplyAsKnown.ajax", {"formPassword": getFormPassword(), "reply": getReplyId(replyElement)}, function(data, textStatus) {
 934                                         $(replyElement).removeClass("new");
 935                                 });
 936                         })(replyElement);
 937                 }
 938         });
 939 }
 940
 941 function resetActivity() {
 942         title = document.title;
 943         if (title.indexOf('(') == 0) {
 944                 document.title = title.substr(title.indexOf(' ') + 1);
 945         }
 946 }
 947
 948 function setActivity() {
 949         if (!focus) {
 950                 title = document.title;
 951                 if (title.indexOf('(') != 0) {
 952                         document.title = "(!) " + title;
 953                 }
 954         }
 955 }
 956
 957 /**
 958  * Creates a new notification.
 959  *
 960  * @param id
 961  *            The ID of the notificaiton
 962  * @param text
 963  *            The text of the notification
 964  * @param dismissable
 965  *            <code>true</code> if the notification can be dismissed by the
 966  *            user
 967  */
 968 function createNotification(id, text, dismissable) {
 969         notification = $("<div></div>").addClass("notification").attr("id", id);
 970         if (dismissable) {
 971                 dismissForm = $("#sone #notification-area #notification-dismiss-template").clone().removeClass("hidden").removeAttr("id")
 972                 dismissForm.find("input[name=notification]").val(id);
 973                 notification.append(dismissForm);
 974         }
 975         notification.append(text);
 976         return notification;
 977 }
 978
 979 /**
 980  * Shows the details of the notification with the given ID.
 981  *
 982  * @param notificationId
 983  *            The ID of the notification
 984  */
 985 function showNotificationDetails(notificationId) {
 986         $("#sone .notification#" + notificationId + " .text").show();
 987         $("#sone .notification#" + notificationId + " .short-text").hide();
 988 }
 989
 990 /**
 991  * Deletes the field with the given ID from the profile.
 992  *
 993  * @param fieldId
 994  *            The ID of the field to delete
 995  */
 996 function deleteProfileField(fieldId) {
 997         $.getJSON("deleteProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId}, function(data, textStatus) {
 998                 if (data && data.success) {
 999                         $("#sone .profile-field#" + data.field.id).slideUp();
1000                 }
1001         });
1002 }
1003
1004 /**
1005  * Renames a profile field.
1006  *
1007  * @param fieldId
1008  *            The ID of the field to rename
1009  * @param newName
1010  *            The new name of the field
1011  * @param successFunction
1012  *            Called when the renaming was successful
1013  */
1014 function editProfileField(fieldId, newName, successFunction) {
1015         $.getJSON("editProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId, "name": newName}, function(data, textStatus) {
1016                 if (data && data.success) {
1017                         successFunction();
1018                 }
1019         });
1020 }
1021
1022 /**
1023  * Moves the profile field with the given ID one slot in the given direction.
1024  *
1025  * @param fieldId
1026  *            The ID of the field to move
1027  * @param direction
1028  *            The direction to move in (“up” or “down”)
1029  * @param successFunction
1030  *            Function to call on success
1031  */
1032 function moveProfileField(fieldId, direction, successFunction) {
1033         $.getJSON("moveProfileField.ajax", {"formPassword": getFormPassword(), "field": fieldId, "direction": direction}, function(data, textStatus) {
1034                 if (data && data.success) {
1035                         successFunction();
1036                 }
1037         });
1038 }
1039
1040 /**
1041  * Moves the profile field with the given ID up one slot.
1042  *
1043  * @param fieldId
1044  *            The ID of the field to move
1045  * @param successFunction
1046  *            Function to call on success
1047  */
1048 function moveProfileFieldUp(fieldId, successFunction) {
1049         moveProfileField(fieldId, "up", successFunction);
1050 }
1051
1052 /**
1053  * Moves the profile field with the given ID down one slot.
1054  *
1055  * @param fieldId
1056  *            The ID of the field to move
1057  * @param successFunction
1058  *            Function to call on success
1059  */
1060 function moveProfileFieldDown(fieldId, successFunction) {
1061         moveProfileField(fieldId, "down", successFunction);
1062 }
1063
1064 //
1065 // EVERYTHING BELOW HERE IS EXECUTED AFTER LOADING THE PAGE
1066 //
1067
1068 var focus = true;
1069
1070 $(document).ready(function() {
1071
1072         /* this initializes the status update input field. */
1073         getTranslation("WebInterface.DefaultText.StatusUpdate", function(defaultText) {
1074                 registerInputTextareaSwap("#sone #update-status .status-input", defaultText, "text", false, false);
1075                 $("#sone #update-status").submit(function() {
1076                         if ($(this).find(":input.default:enabled").length > 0) {
1077                                 return false;
1078                         }
1079                         text = $(this).find(":input:enabled").val();
1080                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "text": text }, function(data, textStatus) {
1081                                 if ((data != null) && data.success) {
1082                                         loadNewPost(data.postId, getCurrentSoneId());
1083                                 }
1084                         });
1085                         $(this).find(":input:enabled").val("").blur();
1086                         return false;
1087                 });
1088         });
1089
1090         /* ajaxify input field on “view Sone” page. */
1091         getTranslation("WebInterface.DefaultText.Message", function(defaultText) {
1092                 registerInputTextareaSwap("#sone #post-message input[name=text]", defaultText, "text", false, false);
1093                 $("#sone #post-message").submit(function() {
1094                         text = $(this).find(":input:enabled").val();
1095                         $.getJSON("createPost.ajax", { "formPassword": getFormPassword(), "recipient": getShownSoneId(), "text": text }, function(data, textStatus) {
1096                                 if ((data != null) && data.success) {
1097                                         loadNewPost(data.postId, getCurrentSoneId());
1098                                 }
1099                         });
1100                         $(this).find(":input:enabled").val("").blur();
1101                         return false;
1102                 });
1103         });
1104
1105         /* Ajaxifies all posts. */
1106         /* calling getTranslation here will cache the necessary values. */
1107         getTranslation("WebInterface.Confirmation.DeletePostButton", function(text) {
1108                 getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(text) {
1109                         getTranslation("WebInterface.DefaultText.Reply", function(text) {
1110                                 $("#sone .post").each(function() {
1111                                         ajaxifyPost(this);
1112                                 });
1113                         });
1114                 });
1115         });
1116
1117         /* hides all replies but the latest two. */
1118         if (!isViewPostPage()) {
1119                 getTranslation("WebInterface.ClickToShow.Replies", function(text) {
1120                         $("#sone .post .replies").each(function() {
1121                                 allReplies = $(this).find(".reply");
1122                                 if (allReplies.length > 2) {
1123                                         newHidden = false;
1124                                         for (replyIndex = 0; replyIndex < (allReplies.length - 2); ++replyIndex) {
1125                                                 $(allReplies[replyIndex]).addClass("hidden");
1126                                                 newHidden |= $(allReplies[replyIndex]).hasClass("new");
1127                                         }
1128                                         clickToShowElement = $("<div></div>").addClass("click-to-show");
1129                                         if (newHidden) {
1130                                                 clickToShowElement.addClass("new");
1131                                         }
1132                                         (function(clickToShowElement, allReplies, text) {
1133                                                 clickToShowElement.text(text);
1134                                                 clickToShowElement.click(function() {
1135                                                         allReplies.removeClass("hidden");
1136                                                         clickToShowElement.addClass("hidden");
1137                                                 });
1138                                         })(clickToShowElement, allReplies, text);
1139                                         $(allReplies[0]).before(clickToShowElement);
1140                                 }
1141                         });
1142                 });
1143         }
1144
1145         /*
1146          * convert all “follow”, “unfollow”, “lock”, and “unlock” links to something
1147          * nicer.
1148          */
1149         $("#sone .follow").submit(function() {
1150                 var followElement = this;
1151                 $.getJSON("followSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1152                         $(followElement).addClass("hidden");
1153                         $(followElement).parent().find(".unfollow").removeClass("hidden");
1154                 });
1155                 return false;
1156         });
1157         $("#sone .unfollow").submit(function() {
1158                 var unfollowElement = this;
1159                 $.getJSON("unfollowSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
1160                         $(unfollowElement).addClass("hidden");
1161                         $(unfollowElement).parent().find(".follow").removeClass("hidden");
1162                 });
1163                 return false;
1164         });
1165         $("#sone .lock").submit(function() {
1166                 var lockElement = this;
1167                 $.getJSON("lockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1168                         $(lockElement).addClass("hidden");
1169                         $(lockElement).parent().find(".unlock").removeClass("hidden");
1170                 });
1171                 return false;
1172         });
1173         $("#sone .unlock").submit(function() {
1174                 var unlockElement = this;
1175                 $.getJSON("unlockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
1176                         $(unlockElement).addClass("hidden");
1177                         $(unlockElement).parent().find(".lock").removeClass("hidden");
1178                 });
1179                 return false;
1180         });
1181
1182         /* process all existing notifications, ajaxify dismiss buttons. */
1183         $("#sone #notification-area .notification").each(function() {
1184                 ajaxifyNotification($(this));
1185         });
1186
1187         /* activate status polling. */
1188         setTimeout(getStatus, 5000);
1189
1190         /* reset activity counter when the page has focus. */
1191         $(window).focus(function() {
1192                 focus = true;
1193                 resetActivity();
1194         }).blur(function() {
1195                 focus = false;
1196         })
1197
1198 });