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