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

   1 /* Sone JavaScript functions. */
   2
   3 function isOnline() {
   4         return $("#sone").hasClass("online");
   5 }
   6
   7 function registerInputTextareaSwap(inputSelector, defaultText, inputFieldName, optional, dontUseTextarea) {
   8         $(inputSelector).each(function() {
   9                 textarea = $(dontUseTextarea ? "<input type=\"text\" name=\"" + inputFieldName + "\">" : "<textarea name=\"" + inputFieldName + "\"></textarea>").blur(function() {
  10                         if ($(this).val() == "") {
  11                                 $(this).hide();
  12                                 inputField = $(this).data("inputField");
  13                                 inputField.show().removeAttr("disabled").addClass("default");
  14                                 inputField.val(defaultText);
  15                         }
  16                 }).hide().data("inputField", $(this)).val($(this).val());
  17                 $(this).after(textarea);
  18                 (function(inputField, textarea) {
  19                         inputField.focus(function() {
  20                                 $(this).hide().attr("disabled", "disabled");
  21                                 textarea.show().focus();
  22                         });
  23                         if (inputField.val() == "") {
  24                                 inputField.addClass("default");
  25                                 inputField.val(defaultText);
  26                         } else {
  27                                 inputField.hide().attr("disabled", "disabled");
  28                                 textarea.show();
  29                         }
  30                         $(inputField.get(0).form).submit(function() {
  31                                 if (!optional && (textarea.val() == "")) {
  32                                         return false;
  33                                 }
  34                         });
  35                 })($(this), textarea);
  36         });
  37 }
  38
  39 /* hide all the “create reply” forms until a link is clicked. */
  40 function addCommentLinks() {
  41         if (!isOnline()) {
  42                 return;
  43         }
  44         $("#sone .post").each(function() {
  45                 postId = $(this).attr("id");
  46                 addCommentLink(postId, $(this));
  47         });
  48 }
  49
  50 /**
  51  * Adds a “comment” link to all status lines contained in the given element.
  52  *
  53  * @param postId
  54  *            The ID of the post
  55  * @param element
  56  *            The element to add a “comment” link to
  57  */
  58 function addCommentLink(postId, element) {
  59         commentElement = (function(postId) {
  60                 var commentElement = $("<div><span>Comment</span></div>").addClass("show-reply-form").click(function() {
  61                         replyElement = $("#sone .post#" + postId + " .create-reply");
  62                         replyElement.removeClass("hidden");
  63                         replyElement.removeClass("light");
  64                         (function(replyElement) {
  65                                 replyElement.find("input.reply-input").blur(function() {
  66                                         if ($(this).hasClass("default")) {
  67                                                 replyElement.addClass("light");
  68                                         }
  69                                 }).focus(function() {
  70                                         replyElement.removeClass("light");
  71                                 });
  72                         })(replyElement);
  73                         replyElement.find("input.reply-input").focus();
  74                 });
  75                 return commentElement;
  76         })(postId);
  77         element.find(".create-reply").addClass("hidden");
  78         element.find(".status-line .time").each(function() {
  79                 $(this).after(commentElement.clone(true));
  80         });
  81 }
  82
  83 /**
  84  * Retrieves the translation for the given key and calls the callback function.
  85  * The callback function takes a single parameter, the translated string.
  86  *
  87  * @param key
  88  *            The key of the translation string
  89  * @param callback
  90  *            The callback function
  91  */
  92 function getTranslation(key, callback) {
  93         $.getJSON("ajax/getTranslation.ajax", {"key": key}, function(data, textStatus) {
  94                 callback(data.value);
  95         });
  96 }
  97
  98 /**
  99  * Fires off an AJAX request to retrieve the current status of a Sone.
 100  *
 101  * @param soneId
 102  *            The ID of the Sone
 103  */
 104 function getSoneStatus(soneId) {
 105         $.getJSON("ajax/getSoneStatus.ajax", {"sone": soneId}, function(data, textStatus) {
 106                 updateSoneStatus(soneId, data.name, data.status, data.modified, data.lastUpdated);
 107                 /* seconds! */
 108                 updateInterval = 60;
 109                 if (data.modified || (data.status == "downloading") || (data.status == "inserting")) {
 110                         updateInterval = 5;
 111                 }
 112                 setTimeout(function() {
 113                         getSoneStatus(soneId);
 114                 }, updateInterval * 1000);
 115         });
 116 }
 117
 118 /**
 119  * Filters the given Sone ID, replacing all “~” characters by an underscore.
 120  *
 121  * @param soneId
 122  *            The Sone ID to filter
 123  * @returns The filtered Sone ID
 124  */
 125 function filterSoneId(soneId) {
 126         return soneId.replace(/[^a-zA-Z0-9-]/g, "_");
 127 }
 128
 129 /**
 130  * Updates the status of the given Sone.
 131  *
 132  * @param soneId
 133  *            The ID of the Sone to update
 134  * @param status
 135  *            The status of the Sone (“idle”, “unknown”, “inserting”,
 136  *            “downloading”)
 137  * @param modified
 138  *            Whether the Sone is modified
 139  * @param lastUpdated
 140  *            The date and time of the last update (formatted for display)
 141  */
 142 function updateSoneStatus(soneId, name, status, modified, lastUpdated) {
 143         $("#sone .sone." + filterSoneId(soneId)).
 144                 toggleClass("unknown", status == "unknown").
 145                 toggleClass("idle", status == "idle").
 146                 toggleClass("inserting", status == "inserting").
 147                 toggleClass("downloading", status == "downloading").
 148                 toggleClass("modified", modified);
 149         $("#sone .sone." + filterSoneId(soneId) + " .last-update span.time").text(lastUpdated);
 150         $("#sone .sone." + filterSoneId(soneId) + " .profile-link a").text(name);
 151 }
 152
 153 var watchedSones = {};
 154
 155 /**
 156  * Watches this Sone for updates to its status.
 157  *
 158  * @param soneId
 159  *            The ID of the Sone to watch
 160  */
 161 function watchSone(soneId) {
 162         if (watchedSones[soneId]) {
 163                 return;
 164         }
 165         watchedSones[soneId] = true;
 166         (function(soneId) {
 167                 setTimeout(function() {
 168                         getSoneStatus(soneId);
 169                 }, 5000);
 170         })(soneId);
 171 }
 172
 173 /**
 174  * Enhances a “delete” button so that the confirmation is done on the same page.
 175  *
 176  * @param buttonId
 177  *            The selector of the button
 178  * @param text
 179  *            The text to show on the button
 180  * @param deleteCallback
 181  *            The callback that actually deletes something
 182  */
 183 function enhanceDeleteButton(buttonId, text, deleteCallback) {
 184         button = $(buttonId);
 185         (function(button) {
 186                 newButton = $("<button></button>").addClass("confirm").hide().text(text).click(function() {
 187                         $(this).fadeOut("slow");
 188                         deleteCallback();
 189                         return false;
 190                 }).insertAfter(button);
 191                 (function(button, newButton) {
 192                         button.click(function() {
 193                                 button.fadeOut("slow", function() {
 194                                         newButton.fadeIn("slow");
 195                                         $(document).one("click", function() {
 196                                                 if (this != newButton.get(0)) {
 197                                                         newButton.fadeOut(function() {
 198                                                                 button.fadeIn();
 199                                                         });
 200                                                 }
 201                                         });
 202                                 });
 203                                 return false;
 204                         });
 205                 })(button, newButton);
 206         })(button);
 207 }
 208
 209 /**
 210  * Enhances a post’s “delete” button.
 211  *
 212  * @param buttonId
 213  *            The selector of the button
 214  * @param postId
 215  *            The ID of the post to delete
 216  * @param text
 217  *            The text to replace the button with
 218  */
 219 function enhanceDeletePostButton(buttonId, postId, text) {
 220         enhanceDeleteButton(buttonId, text, function() {
 221                 $.getJSON("ajax/deletePost.ajax", { "post": postId, "formPassword": $("#sone #formPassword").text() }, function(data, textStatus) {
 222                         if (data.success) {
 223                                 $("#sone .post#" + postId).slideUp();
 224                         } else if (data.error == "invalid-post-id") {
 225                                 alert("Invalid post ID given!");
 226                         } else if (data.error == "auth-required") {
 227                                 alert("You need to be logged in.");
 228                         } else if (data.error == "not-authorized") {
 229                                 alert("You are not allowed to delete this post.");
 230                         }
 231                 });
 232         });
 233 }
 234
 235 /**
 236  * Enhances a reply’s “delete” button.
 237  *
 238  * @param buttonId
 239  *            The selector of the button
 240  * @param replyId
 241  *            The ID of the reply to delete
 242  * @param text
 243  *            The text to replace the button with
 244  */
 245 function enhanceDeleteReplyButton(buttonId, replyId, text) {
 246         enhanceDeleteButton(buttonId, text, function() {
 247                 $.getJSON("ajax/deleteReply.ajax", { "reply": replyId, "formPassword": $("#sone #formPassword").text() }, function(data, textStatus) {
 248                         if (data.success) {
 249                                 $("#sone .reply#" + replyId).slideUp();
 250                         } else if (data.error == "invalid-reply-id") {
 251                                 alert("Invalid reply ID given!");
 252                         } else if (data.error == "auth-required") {
 253                                 alert("You need to be logged in.");
 254                         } else if (data.error == "not-authorized") {
 255                                 alert("You are not allowed to delete this reply.");
 256                         }
 257                 });
 258         });
 259 }
 260
 261 function getFormPassword() {
 262         return $("#sone #formPassword").text();
 263 }
 264
 265 function getSoneElement(element) {
 266         return $(element).parents(".sone");
 267 }
 268
 269 /**
 270  * Generates a list of Sones by concatening the names of the given sones with a
 271  * new line character (“\n”).
 272  *
 273  * @param sones
 274  *            The sones to format
 275  * @returns {String} The created string
 276  */
 277 function generateSoneList(sones) {
 278         var soneList = "";
 279         $.each(sones, function() {
 280                 if (soneList != "") {
 281                         soneList += "\n";
 282                 }
 283                 soneList += this.name;
 284         });
 285         return soneList;
 286 }
 287
 288 /**
 289  * Returns the ID of the Sone that this element belongs to.
 290  *
 291  * @param element
 292  *            The element to locate the matching Sone ID for
 293  * @returns The ID of the Sone, or undefined
 294  */
 295 function getSoneId(element) {
 296         return getSoneElement(element).find(".id").text();
 297 }
 298
 299 function getPostElement(element) {
 300         return $(element).parents(".post");
 301 }
 302
 303 function getPostId(element) {
 304         return getPostElement(element).attr("id");
 305 }
 306
 307 function getReplyElement(element) {
 308         return $(element).parents(".reply");
 309 }
 310
 311 function getReplyId(element) {
 312         return getReplyElement(element).attr("id");
 313 }
 314
 315 function likePost(postId) {
 316         $.getJSON("ajax/like.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function() {
 317                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").addClass("hidden");
 318                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").removeClass("hidden");
 319                 updatePostLikes(postId);
 320         });
 321 }
 322
 323 function unlikePost(postId) {
 324         $.getJSON("ajax/unlike.ajax", { "type": "post", "post" : postId, "formPassword": getFormPassword() }, function() {
 325                 $("#sone .post#" + postId + " > .inner-part > .status-line .unlike").addClass("hidden");
 326                 $("#sone .post#" + postId + " > .inner-part > .status-line .like").removeClass("hidden");
 327                 updatePostLikes(postId);
 328         });
 329 }
 330
 331 function updatePostLikes(postId) {
 332         $.getJSON("ajax/getLikes.ajax", { "type": "post", "post": postId }, function(data, textStatus) {
 333                 if (data.success) {
 334                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes").toggleClass("hidden", data.likes == 0)
 335                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes span.like-count").text(data.likes);
 336                         $("#sone .post#" + postId + " > .inner-part > .status-line .likes > span").attr("title", generateSoneList(data.sones));
 337                 }
 338         });
 339 }
 340
 341 function likeReply(replyId) {
 342         $.getJSON("ajax/like.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function() {
 343                 $("#sone .reply#" + replyId + " .status-line .like").addClass("hidden");
 344                 $("#sone .reply#" + replyId + " .status-line .unlike").removeClass("hidden");
 345                 updateReplyLikes(replyId);
 346         });
 347 }
 348
 349 function unlikeReply(replyId) {
 350         $.getJSON("ajax/unlike.ajax", { "type": "reply", "reply" : replyId, "formPassword": getFormPassword() }, function() {
 351                 $("#sone .reply#" + replyId + " .status-line .unlike").addClass("hidden");
 352                 $("#sone .reply#" + replyId + " .status-line .like").removeClass("hidden");
 353                 updateReplyLikes(replyId);
 354         });
 355 }
 356
 357 function updateReplyLikes(replyId) {
 358         $.getJSON("ajax/getLikes.ajax", { "type": "reply", "reply": replyId }, function(data, textStatus) {
 359                 if (data.success) {
 360                         $("#sone .reply#" + replyId + " .status-line .likes").toggleClass("hidden", data.likes == 0)
 361                         $("#sone .reply#" + replyId + " .status-line .likes span.like-count").text(data.likes);
 362                         $("#sone .reply#" + replyId + " .status-line .likes > span").attr("title", generateSoneList(data.sones));
 363                 }
 364         });
 365 }