Merge commit '0.3.1-RC3' into message-recipient
[Sone.git] / src / main / resources / static / javascript / sone.js
index 502413a..75facb3 100644 (file)
 /* Sone JavaScript functions. */
 
-function registerInputTextareaSwap(inputSelector, defaultText) {
-       $(inputSelector).each(function() {
-               $(this).focus(function() {
-                       if ($(this).hasClass("default")) {
-                               $(this).removeClass("default").val("");
-                       }
-               }).blur(function() {
+/* jQuery overrides. */
+oldGetJson = jQuery.prototype.getJSON;
+jQuery.prototype.getJSON = function(url, data, successCallback, errorCallback) {
+       if (typeof errorCallback == "undefined") {
+               return oldGetJson(url, data, successCallback);
+       }
+       if (jQuery.isFunction(data)) {
+               errorCallback = successCallback;
+               successCallback = data;
+               data = null;
+       }
+       return jQuery.ajax({
+               data: data,
+               error: errorCallback,
+               success: successCallback,
+               url: url
+       });
+}
+
+function isOnline() {
+       return $("#sone").hasClass("online");
+}
+
+function registerInputTextareaSwap(inputElement, defaultText, inputFieldName, optional, dontUseTextarea) {
+       $(inputElement).each(function() {
+               textarea = $(dontUseTextarea ? "<input type=\"text\" name=\"" + inputFieldName + "\">" : "<textarea name=\"" + inputFieldName + "\"></textarea>").blur(function() {
                        if ($(this).val() == "") {
-                               $(this).val(defaultText).addClass("default");
+                               $(this).hide();
+                               inputField = $(this).data("inputField");
+                               inputField.show().removeAttr("disabled").addClass("default");
+                               inputField.val(defaultText);
                        }
-               }).addClass("default").val(defaultText);
-               var inputField = $(this);
-               $(this.form).submit(function() {
-                       if (inputField.hasClass("default")) {
-                               inputField.val("");
+               }).hide().data("inputField", $(this)).val($(this).val());
+               $(this).after(textarea);
+               (function(inputField, textarea) {
+                       inputField.focus(function() {
+                               $(this).hide().attr("disabled", "disabled");
+                               textarea.show().focus();
+                       });
+                       if (inputField.val() == "") {
+                               inputField.addClass("default");
+                               inputField.val(defaultText);
+                       } else {
+                               inputField.hide().attr("disabled", "disabled");
+                               textarea.show();
                        }
+                       $(inputField.get(0).form).submit(function() {
+                               if (!optional && (textarea.val() == "")) {
+                                       return false;
+                               }
+                       });
+               })($(this), textarea);
+       });
+}
+
+/**
+ * Adds a “comment” link to all status lines contained in the given element.
+ *
+ * @param postId
+ *            The ID of the post
+ * @param element
+ *            The element to add a “comment” link to
+ */
+function addCommentLink(postId, element, insertAfterThisElement) {
+       if ($(element).find(".show-reply-form").length > 0) {
+               return;
+       }
+       commentElement = (function(postId) {
+               var commentElement = $("<div><span>Comment</span></div>").addClass("show-reply-form").click(function() {
+                       markPostAsKnown(getPostElement(this));
+                       replyElement = $("#sone .post#" + postId + " .create-reply");
+                       replyElement.removeClass("hidden");
+                       replyElement.removeClass("light");
+                       (function(replyElement) {
+                               replyElement.find("input.reply-input").blur(function() {
+                                       if ($(this).hasClass("default")) {
+                                               replyElement.addClass("light");
+                                       }
+                               }).focus(function() {
+                                       replyElement.removeClass("light");
+                               });
+                       })(replyElement);
+                       replyElement.find("input.reply-input").focus();
                });
+               return commentElement;
+       })(postId);
+       $(insertAfterThisElement).after(commentElement.clone(true));
+}
+
+var translations = {};
+
+/**
+ * Retrieves the translation for the given key and calls the callback function.
+ * The callback function takes a single parameter, the translated string.
+ *
+ * @param key
+ *            The key of the translation string
+ * @param callback
+ *            The callback function
+ */
+function getTranslation(key, callback) {
+       if (key in translations) {
+               callback(translations[key]);
+               return;
+       }
+       $.getJSON("ajax/getTranslation.ajax", {"key": key}, function(data, textStatus) {
+               if ((data != null) && data.success) {
+                       translations[key] = data.value;
+                       callback(data.value);
+               }
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
        });
 }
 
-/* hide all the “create reply” forms until a link is clicked. */
-function addCommentLinks() {
-       $("#sone .post").each(function() {
-               postId = $(this).attr("id");
-               commentElement = (function(postId) {
-                       var commentElement = $("<div><span>Comment</span></div>").addClass("show-reply-form").click(function() {
-                               replyElement = $("#sone .post#" + postId + " .create-reply");
-                               replyElement.removeClass("hidden");
-                               replyElement.removeClass("light");
-                               (function(replyElement) {
-                                       replyElement.find("input.reply-input").blur(function() {
-                                               if ($(this).hasClass("default")) {
-                                                       replyElement.addClass("light");
+/**
+ * Filters the given Sone ID, replacing all “~” characters by an underscore.
+ *
+ * @param soneId
+ *            The Sone ID to filter
+ * @returns The filtered Sone ID
+ */
+function filterSoneId(soneId) {
+       return soneId.replace(/[^a-zA-Z0-9-]/g, "_");
+}
+
+/**
+ * Updates the status of the given Sone.
+ *
+ * @param soneId
+ *            The ID of the Sone to update
+ * @param status
+ *            The status of the Sone (“idle”, “unknown”, “inserting”,
+ *            “downloading”)
+ * @param modified
+ *            Whether the Sone is modified
+ * @param locked
+ *            Whether the Sone is locked
+ * @param lastUpdated
+ *            The date and time of the last update (formatted for display)
+ */
+function updateSoneStatus(soneId, name, status, modified, locked, lastUpdated) {
+       $("#sone .sone." + filterSoneId(soneId)).
+               toggleClass("unknown", status == "unknown").
+               toggleClass("idle", status == "idle").
+               toggleClass("inserting", status == "inserting").
+               toggleClass("downloading", status == "downloading").
+               toggleClass("modified", modified);
+       $("#sone .sone." + filterSoneId(soneId) + " .lock").toggleClass("hidden", locked);
+       $("#sone .sone." + filterSoneId(soneId) + " .unlock").toggleClass("hidden", !locked);
+       $("#sone .sone." + filterSoneId(soneId) + " .last-update span.time").text(lastUpdated);
+       $("#sone .sone." + filterSoneId(soneId) + " .profile-link a").text(name);
+}
+
+/**
+ * Enhances a “delete” button so that the confirmation is done on the same page.
+ *
+ * @param button
+ *            The button element
+ * @param text
+ *            The text to show on the button
+ * @param deleteCallback
+ *            The callback that actually deletes something
+ */
+function enhanceDeleteButton(button, text, deleteCallback) {
+       (function(button) {
+               newButton = $("<button></button>").addClass("confirm").hide().text(text).click(function() {
+                       $(this).fadeOut("slow");
+                       deleteCallback();
+                       return false;
+               }).insertAfter(button);
+               (function(button, newButton) {
+                       button.click(function() {
+                               button.fadeOut("slow", function() {
+                                       newButton.fadeIn("slow");
+                                       $(document).one("click", function() {
+                                               if (this != newButton.get(0)) {
+                                                       newButton.fadeOut(function() {
+                                                               button.fadeIn();
+                                                       });
                                                }
-                                       }).focus(function() {
-                                               replyElement.removeClass("light");
                                        });
-                               })(replyElement);
-                               replyElement.find("input.reply-input").focus();
+                               });
+                               return false;
                        });
-                       return commentElement;
-               })(postId);
-               $(this).find(".create-reply").addClass("hidden");
-               $(this).find(".status-line .time").each(function() {
-                       $(this).after(commentElement.clone(true));
+               })(button, newButton);
+       })($(button));
+}
+
+/**
+ * Enhances a post’s “delete” button.
+ *
+ * @param button
+ *            The button element
+ * @param postId
+ *            The ID of the post to delete
+ * @param text
+ *            The text to replace the button with
+ */
+function enhanceDeletePostButton(button, postId, text) {
+       enhanceDeleteButton(button, text, function() {
+               $.getJSON("ajax/deletePost.ajax", { "post": postId, "formPassword": getFormPassword() }, function(data, textStatus) {
+                       if (data == null) {
+                               return;
+                       }
+                       if (data.success) {
+                               $("#sone .post#" + postId).slideUp();
+                       } else if (data.error == "invalid-post-id") {
+                               alert("Invalid post ID given!");
+                       } else if (data.error == "auth-required") {
+                               alert("You need to be logged in.");
+                       } else if (data.error == "not-authorized") {
+                               alert("You are not allowed to delete this post.");
+                       }
+               }, function(xmlHttpRequest, textStatus, error) {
+                       /* ignore error. */
                });
        });
 }
+
+/**
+ * Enhances a reply’s “delete” button.
+ *
+ * @param button
+ *            The button element
+ * @param replyId
+ *            The ID of the reply to delete
+ * @param text
+ *            The text to replace the button with
+ */
+function enhanceDeleteReplyButton(button, replyId, text) {
+       enhanceDeleteButton(button, text, function() {
+               $.getJSON("ajax/deleteReply.ajax", { "reply": replyId, "formPassword": $("#sone #formPassword").text() }, function(data, textStatus) {
+                       if (data == null) {
+                               return;
+                       }
+                       if (data.success) {
+                               $("#sone .reply#" + replyId).slideUp();
+                       } else if (data.error == "invalid-reply-id") {
+                               alert("Invalid reply ID given!");
+                       } else if (data.error == "auth-required") {
+                               alert("You need to be logged in.");
+                       } else if (data.error == "not-authorized") {
+                               alert("You are not allowed to delete this reply.");
+                       }
+               }, function(xmlHttpRequest, textStatus, error) {
+                       /* ignore error. */
+               });
+       });
+}
+
+function getFormPassword() {
+       return $("#sone #formPassword").text();
+}
+
+function getSoneElement(element) {
+       return $(element).parents(".sone");
+}
+
+/**
+ * Generates a list of Sones by concatening the names of the given sones with a
+ * new line character (“\n”).
+ *
+ * @param sones
+ *            The sones to format
+ * @returns {String} The created string
+ */
+function generateSoneList(sones) {
+       var soneList = "";
+       $.each(sones, function() {
+               if (soneList != "") {
+                       soneList += ", ";
+               }
+               soneList += this.name;
+       });
+       return soneList;
+}
+
+/**
+ * Returns the ID of the Sone that this element belongs to.
+ *
+ * @param element
+ *            The element to locate the matching Sone ID for
+ * @returns The ID of the Sone, or undefined
+ */
+function getSoneId(element) {
+       return getSoneElement(element).find(".id").text();
+}
+
+function getPostElement(element) {
+       return $(element).closest(".post");
+}
+
+function getPostId(element) {
+       return getPostElement(element).attr("id");
+}
+
+function getPostTime(element) {
+       return getPostElement(element).find(".post-time").text();
+}
+
+function getReplyElement(element) {
+       return $(element).closest(".reply");
+}
+
+function getReplyId(element) {
+       return getReplyElement(element).attr("id");
+}
+
+function getReplyTime(element) {
+       return getReplyElement(element).find(".reply-time").text();
+}
+
+function likePost(postId) {
+       $.getJSON("ajax/like.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
+               if ((data == null) || !data.success) {
+                       return;
+               }
+               $("#sone .post#" + postId + " > .inner-part > .status-line .like").addClass("hidden");
+               $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").removeClass("hidden");
+               updatePostLikes(postId);
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+function unlikePost(postId) {
+       $.getJSON("ajax/unlike.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function(data, textStatus) {
+               if ((data == null) || !data.success) {
+                       return;
+               }
+               $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").addClass("hidden");
+               $("#sone .post#" + postId + " > .inner-part > .status-line .like").removeClass("hidden");
+               updatePostLikes(postId);
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+function updatePostLikes(postId) {
+       $.getJSON("ajax/getLikes.ajax", { "type": "post", "post": postId }, function(data, textStatus) {
+               if ((data != null) && data.success) {
+                       $("#sone .post#" + postId + " > .inner-part > .status-line .likes").toggleClass("hidden", data.likes == 0)
+                       $("#sone .post#" + postId + " > .inner-part > .status-line .likes span.like-count").text(data.likes);
+                       $("#sone .post#" + postId + " > .inner-part > .status-line .likes > span").attr("title", generateSoneList(data.sones));
+               }
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+function likeReply(replyId) {
+       $.getJSON("ajax/like.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
+               if ((data == null) || !data.success) {
+                       return;
+               }
+               $("#sone .reply#" + replyId + " .status-line .like").addClass("hidden");
+               $("#sone .reply#" + replyId + " .status-line .unlike").removeClass("hidden");
+               updateReplyLikes(replyId);
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+function unlikeReply(replyId) {
+       $.getJSON("ajax/unlike.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function(data, textStatus) {
+               if ((data == null) || !data.success) {
+                       return;
+               }
+               $("#sone .reply#" + replyId + " .status-line .unlike").addClass("hidden");
+               $("#sone .reply#" + replyId + " .status-line .like").removeClass("hidden");
+               updateReplyLikes(replyId);
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+function updateReplyLikes(replyId) {
+       $.getJSON("ajax/getLikes.ajax", { "type": "reply", "reply": replyId }, function(data, textStatus) {
+               if ((data != null) && data.success) {
+                       $("#sone .reply#" + replyId + " .status-line .likes").toggleClass("hidden", data.likes == 0)
+                       $("#sone .reply#" + replyId + " .status-line .likes span.like-count").text(data.likes);
+                       $("#sone .reply#" + replyId + " .status-line .likes > span").attr("title", generateSoneList(data.sones));
+               }
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+/**
+ * Posts a reply and calls the given callback when the request finishes.
+ *
+ * @param postId
+ *            The ID of the post the reply refers to
+ * @param text
+ *            The text to post
+ * @param callbackFunction
+ *            The callback function to call when the request finishes (takes 3
+ *            parameters: success, error, replyId)
+ */
+function postReply(postId, text, callbackFunction) {
+       $.getJSON("ajax/createReply.ajax", { "formPassword" : getFormPassword(), "post" : postId, "text": text }, function(data, textStatus) {
+               if (data == null) {
+                       /* TODO - show error */
+                       return;
+               }
+               if (data.success) {
+                       callbackFunction(true, null, data.reply);
+               } else {
+                       callbackFunction(false, data.error);
+               }
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+/**
+ * Requests information about the reply with the given ID.
+ *
+ * @param replyId
+ *            The ID of the reply
+ * @param callbackFunction
+ *            A callback function (parameters soneId, soneName, replyTime,
+ *            replyDisplayTime, text, html)
+ */
+function getReply(replyId, callbackFunction) {
+       $.getJSON("ajax/getReply.ajax", { "reply" : replyId }, function(data, textStatus) {
+               if ((data != null) && data.success) {
+                       callbackFunction(data.soneId, data.soneName, data.time, data.displayTime, data.text, data.html);
+               }
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* ignore error. */
+       });
+}
+
+/**
+ * Ajaxifies the given post by enhancing all eligible elements with AJAX.
+ *
+ * @param postElement
+ *            The post element to ajaxify
+ */
+function ajaxifyPost(postElement) {
+       $(postElement).find("form").submit(function() {
+               return false;
+       });
+       $(postElement).find(".create-reply button:submit").click(function() {
+               inputField = $(this.form).find(":input:enabled").get(0);
+               postId = getPostId(this);
+               text = $(inputField).val();
+               $(inputField).val("");
+               postReply(postId, text, function(success, error, replyId) {
+                       if (success) {
+                               loadNewReply(replyId);
+                               markPostAsKnown(getPostElement(inputField));
+                               $("#sone .post#" + postId + " .create-reply").addClass("hidden");
+                       } else {
+                               alert(error);
+                       }
+               });
+               return false;
+       });
+
+       /* replace all “delete” buttons with javascript. */
+       (function(postElement) {
+               getTranslation("WebInterface.Confirmation.DeletePostButton", function(deletePostText) {
+                       postId = getPostId(postElement);
+                       enhanceDeletePostButton($(postElement).find(".delete-post button"), postId, deletePostText);
+               });
+       })(postElement);
+
+       /* convert all “like” buttons to javascript functions. */
+       $(postElement).find(".like-post").submit(function() {
+               likePost(getPostId(this));
+               markPostAsKnown(getPostElement(this));
+               return false;
+       });
+       $(postElement).find(".unlike-post").submit(function() {
+               unlikePost(getPostId(this));
+               markPostAsKnown(getPostElement(this));
+               return false;
+       });
+
+       /* add “comment” link. */
+       addCommentLink(getPostId(postElement), postElement, $(postElement).find(".post-status-line .time"));
+
+       /* process all replies. */
+       $(postElement).find(".reply").each(function() {
+               ajaxifyReply(this);
+       });
+
+       /* process reply input fields. */
+       getTranslation("WebInterface.DefaultText.Reply", function(text) {
+               $(postElement).find("input.reply-input").each(function() {
+                       registerInputTextareaSwap(this, text, "text", false, false);
+               });
+       });
+
+       /* mark everything as known on click. */
+       $(postElement).click(function() {
+               markPostAsKnown(this);
+       });
+
+       /* hide reply input field. */
+       $(postElement).find(".create-reply").addClass("hidden");
+}
+
+/**
+ * Ajaxifies the given reply element.
+ *
+ * @param replyElement
+ *            The reply element to ajaxify
+ */
+function ajaxifyReply(replyElement) {
+       $(replyElement).find(".like-reply").submit(function() {
+               likeReply(getReplyId(this));
+               markPostAsKnown(getPostElement(this));
+               return false;
+       });
+       $(replyElement).find(".unlike-reply").submit(function() {
+               unlikeReply(getReplyId(this));
+               markPostAsKnown(getPostElement(this));
+               return false;
+       });
+       (function(replyElement) {
+               getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(deleteReplyText) {
+                       $(replyElement).find(".delete-reply button").each(function() {
+                               enhanceDeleteReplyButton(this, getReplyId(replyElement), deleteReplyText);
+                       });
+               });
+       })(replyElement);
+       addCommentLink(getPostId(replyElement), replyElement, $(replyElement).find(".reply-status-line .time"));
+
+       /* mark post and all replies as known on click. */
+       $(replyElement).click(function() {
+               markPostAsKnown(getPostElement(replyElement));
+       });
+}
+
+/**
+ * Ajaxifies the given notification by replacing the form with AJAX.
+ *
+ * @param notification
+ *            jQuery object representing the notification.
+ */
+function ajaxifyNotification(notification) {
+       notification.find("form.dismiss").submit(function() {
+               return false;
+       });
+       notification.find("form.dismiss button").click(function() {
+               $.getJSON("ajax/dismissNotification.ajax", { "formPassword" : getFormPassword(), "notification" : notification.attr("id") }, function(data, textStatus) {
+                       /* dismiss in case of error, too. */
+                       notification.slideUp();
+               }, function(xmlHttpRequest, textStatus, error) {
+                       /* ignore error. */
+               });
+       });
+       return notification;
+}
+
+function getStatus() {
+       $.getJSON("ajax/getStatus.ajax", {}, function(data, textStatus) {
+               if ((data != null) && data.success) {
+                       /* process Sone information. */
+                       $.each(data.sones, function(index, value) {
+                               updateSoneStatus(value.id, value.name, value.status, value.modified, value.locked, value.lastUpdated);
+                       });
+                       /* process notifications. */
+                       $.each(data.notifications, function(index, value) {
+                               oldNotification = $("#sone #notification-area .notification#" + value.id);
+                               notification = ajaxifyNotification(createNotification(value.id, value.text, value.dismissable)).hide();
+                               if (oldNotification.length != 0) {
+                                       oldNotification.replaceWith(notification.show());
+                               } else {
+                                       $("#sone #notification-area").append(notification);
+                                       notification.slideDown();
+                               }
+                               setActivity();
+                       });
+                       $.each(data.removedNotifications, function(index, value) {
+                               $("#sone #notification-area .notification#" + value.id).slideUp();
+                       });
+                       /* process new posts. */
+                       $.each(data.newPosts, function(index, value) {
+                               loadNewPost(value);
+                       });
+                       /* process new replies. */
+                       $.each(data.newReplies, function(index, value) {
+                               loadNewReply(value);
+                       });
+                       /* do it again in 5 seconds. */
+                       setTimeout(getStatus, 5000);
+               } else {
+                       /* data.success was false, wait 30 seconds. */
+                       setTimeout(getStatus, 30000);
+               }
+       }, function(xmlHttpRequest, textStatus, error) {
+               /* something really bad happend, wait a minute. */
+               setTimeout(getStatus, 60000);
+       })
+}
+
+var loadedPosts = {};
+var loadedReplies = {};
+
+function loadNewPost(postId) {
+       if (postId in loadedPosts) {
+               return;
+       }
+       loadedPosts[postId] = true;
+       $.getJSON("ajax/getPost.ajax", { "post" : postId }, function(data, textStatus) {
+               if ((data != null) && data.success) {
+                       var firstOlderPost = null;
+                       $("#sone .post").each(function() {
+                               if (getPostTime(this) < data.post.time) {
+                                       firstOlderPost = $(this);
+                                       return false;
+                               }
+                       });
+                       newPost = $(data.post.html).addClass("hidden");
+                       if (firstOlderPost != null) {
+                               newPost.insertBefore(firstOlderPost);
+                       } else {
+                               $("#sone #posts").append(newPost);
+                       }
+                       ajaxifyPost(newPost);
+                       newPost.slideDown();
+                       setActivity();
+               }
+       });
+}
+
+function loadNewReply(replyId) {
+       if (replyId in loadedReplies) {
+               return;
+       }
+       loadedReplies[replyId] = true;
+       $.getJSON("ajax/getReply.ajax", { "reply": replyId }, function(data, textStatus) {
+               /* find post. */
+               if ((data != null) && data.success) {
+                       $("#sone .post#" + data.reply.postId).each(function() {
+                               var firstNewerReply = null;
+                               $(this).find(".replies .reply").each(function() {
+                                       if (getReplyTime(this) > data.reply.time) {
+                                               firstNewerReply = $(this);
+                                               return false;
+                                       }
+                               });
+                               newReply = $(data.reply.html).addClass("hidden");
+                               if (firstNewerReply != null) {
+                                       newReply.insertBefore(firstNewerReply);
+                               } else {
+                                       if ($(this).find(".replies .create-reply")) {
+                                               $(this).find(".replies .create-reply").before(newReply);
+                                       } else {
+                                               $(this).find(".replies").append(newReply);
+                                       }
+                               }
+                               ajaxifyReply(newReply);
+                               newReply.slideDown();
+                               setActivity();
+                       });
+               }
+       });
+}
+
+function markPostAsKnown(postElements) {
+       $(postElements).each(function() {
+               postElement = this;
+               if ($(postElement).hasClass("new")) {
+                       (function(postElement) {
+                               $.getJSON("ajax/markPostAsKnown.ajax", {"formPassword": getFormPassword(), "post": getPostId(postElement)}, function(data, textStatus) {
+                                       $(postElement).removeClass("new");
+                               });
+                       })(postElement);
+               }
+       });
+       markReplyAsKnown($(postElements).find(".reply"));
+}
+
+function markReplyAsKnown(replyElements) {
+       $(replyElements).each(function() {
+               replyElement = this;
+               if ($(replyElement).hasClass("new")) {
+                       (function(replyElement) {
+                               $.getJSON("ajax/markReplyAsKnown.ajax", {"formPassword": getFormPassword(), "reply": getReplyId(replyElement)}, function(data, textStatus) {
+                                       $(replyElement).removeClass("new");
+                               });
+                       })(replyElement);
+               }
+       });
+}
+
+function resetActivity() {
+       title = document.title;
+       if (title.indexOf('(') == 0) {
+               document.title = title.substr(title.indexOf(' ') + 1);
+       }
+}
+
+function setActivity() {
+       if (!focus) {
+               title = document.title;
+               if (title.indexOf('(') != 0) {
+                       document.title = "(!) " + title;
+               }
+       }
+}
+
+/**
+ * Creates a new notification.
+ *
+ * @param id
+ *            The ID of the notificaiton
+ * @param text
+ *            The text of the notification
+ * @param dismissable
+ *            <code>true</code> if the notification can be dismissed by the
+ *            user
+ */
+function createNotification(id, text, dismissable) {
+       notification = $("<div></div>").addClass("notification").attr("id", id);
+       if (dismissable) {
+               dismissForm = $("#sone #notification-area #notification-dismiss-template").clone().removeClass("hidden").removeAttr("id")
+               dismissForm.find("input[name=notification]").val(id);
+               notification.append(dismissForm);
+       }
+       notification.append(text);
+       return notification;
+}
+
+//
+// EVERYTHING BELOW HERE IS EXECUTED AFTER LOADING THE PAGE
+//
+
+var focus = true;
+
+$(document).ready(function() {
+
+       /* this initializes the status update input field. */
+       getTranslation("WebInterface.DefaultText.StatusUpdate", function(defaultText) {
+               registerInputTextareaSwap("#sone #update-status .status-input", defaultText, "text", false, false);
+               $("#sone #update-status").submit(function() {
+                       text = $(this).find(":input:enabled").val();
+                       $.getJSON("ajax/createPost.ajax", { "formPassword": getFormPassword(), "text": text }, function(data, textStatus) {
+                               if ((data != null) && data.success) {
+                                       loadNewPost(data.postId);
+                               }
+                       });
+                       $(this).find(":input:enabled").val("").blur();
+                       return false;
+               });
+       });
+
+       /* ajaxify input field on “view Sone” page. */
+       getTranslation("WebInterface.DefaultText.Message", function(defaultText) {
+               registerInputTextareaSwap("#sone #post-message input[name=text]", defaultText, "text", false, false);
+               $("#sone #post-message").submit(function() {
+                       text = $(this).find(":input:enabled").val();
+                       $.getJSON("ajax/createPost.ajax", { "formPassword": getFormPassword(), "recipient": $("#sone #sone-id").text(), "text": text }, function(data, textStatus) {
+                               if ((data != null) && data.success) {
+                                       loadNewPost(data.postId);
+                               }
+                       });
+                       $(this).find(":input:enabled").val("").blur();
+                       return false;
+               });
+       });
+
+       /* Ajaxifies all posts. */
+       /* calling getTranslation here will cache the necessary values. */
+       getTranslation("WebInterface.Confirmation.DeletePostButton", function(text) {
+               getTranslation("WebInterface.Confirmation.DeleteReplyButton", function(text) {
+                       getTranslation("WebInterface.DefaultText.Reply", function(text) {
+                               $("#sone .post").each(function() {
+                                       ajaxifyPost(this);
+                               });
+                       });
+               });
+       });
+
+       /* hides all replies but the latest two. */
+       getTranslation("WebInterface.ClickToShow.Replies", function(text) {
+               $("#sone .post .replies").each(function() {
+                       allReplies = $(this).find(".reply");
+                       if (allReplies.length > 2) {
+                               newHidden = false;
+                               for (replyIndex = 0; replyIndex < (allReplies.length - 2); ++replyIndex) {
+                                       $(allReplies[replyIndex]).addClass("hidden");
+                                       newHidden |= $(allReplies[replyIndex]).hasClass("new");
+                               }
+                               clickToShowElement = $("<div></div>").addClass("click-to-show");
+                               if (newHidden) {
+                                       clickToShowElement.addClass("new");
+                               }
+                               (function(clickToShowElement, allReplies, text) {
+                                       clickToShowElement.text(text);
+                                       clickToShowElement.click(function() {
+                                               allReplies.removeClass("hidden");
+                                               clickToShowElement.addClass("hidden");
+                                       });
+                               })(clickToShowElement, allReplies, text);
+                               $(allReplies[0]).before(clickToShowElement);
+                       }
+               });
+       });
+
+       /*
+        * convert all “follow”, “unfollow”, “lock”, and “unlock” links to something
+        * nicer.
+        */
+       $("#sone .follow").submit(function() {
+               var followElement = this;
+               $.getJSON("ajax/followSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
+                       $(followElement).addClass("hidden");
+                       $(followElement).parent().find(".unfollow").removeClass("hidden");
+               });
+               return false;
+       });
+       $("#sone .unfollow").submit(function() {
+               var unfollowElement = this;
+               $.getJSON("ajax/unfollowSone.ajax", { "sone": getSoneId(this), "formPassword": getFormPassword() }, function() {
+                       $(unfollowElement).addClass("hidden");
+                       $(unfollowElement).parent().find(".follow").removeClass("hidden");
+               });
+               return false;
+       });
+       $("#sone .lock").submit(function() {
+               var lockElement = this;
+               $.getJSON("ajax/lockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
+                       $(lockElement).addClass("hidden");
+                       $(lockElement).parent().find(".unlock").removeClass("hidden");
+               });
+               return false;
+       });
+       $("#sone .unlock").submit(function() {
+               var unlockElement = this;
+               $.getJSON("ajax/unlockSone.ajax", { "sone" : getSoneId(this), "formPassword" : getFormPassword() }, function() {
+                       $(unlockElement).addClass("hidden");
+                       $(unlockElement).parent().find(".lock").removeClass("hidden");
+               });
+               return false;
+       });
+
+       /* process all existing notifications, ajaxify dismiss buttons. */
+       $("#sone #notification-area .notification").each(function() {
+               ajaxifyNotification($(this));
+       });
+
+       /* activate status polling. */
+       setTimeout(getStatus, 5000);
+
+       /* reset activity counter when the page has focus. */
+       $(window).focus(function() {
+               focus = true;
+               resetActivity();
+       }).blur(function() {
+               focus = false;
+       })
+
+});