Only update fast if a Sone is modified, downloading, or inserting.

[Sone.git] / src / main / resources / static / javascript / sone.js

diff --git a/src/main/resources/static/javascript/sone.js b/src/main/resources/static/javascript/sone.js
index 502413a..15788aa 100644 (file)
--- a/src/main/resources/static/javascript/sone.js
+++ b/src/main/resources/static/javascript/sone.js
@@ -1,22 +1,42 @@
 /* Sone JavaScript functions. */
 
-function registerInputTextareaSwap(inputSelector, defaultText) {
+function registerInputTextareaSwap(inputSelector, defaultText, inputFieldName, optional) {
        $(inputSelector).each(function() {
-               $(this).focus(function() {
-                       if ($(this).hasClass("default")) {
-                               $(this).removeClass("default").val("");
-                       }
-               }).blur(function() {
+               textarea = $("<textarea name=\"" + inputFieldName + "\"></textarea>").blur(function() {
                        if ($(this).val() == "") {
-                               $(this).val(defaultText).addClass("default");
+                               $(this).hide();
+                               inputField = $(this).data("inputField");
+                               inputField.show().removeAttr("disabled").addClass("default");
+                               (function(inputField) {
+                                       getTranslation(defaultText, function(translation) {
+                                               inputField.val(translation);
+                                       });
+                               })(inputField);
                        }
-               }).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");
+                               (function(inputField) {
+                                       getTranslation(defaultText, function(translation) {
+                                               inputField.val(translation);
+                                       });
+                               })(inputField);
+                       } else {
+                               inputField.hide().attr("disabled", "disabled");
+                               textarea.show();
                        }
-               });
+                       $(inputField.get(0).form).submit(function() {
+                               if (!optional && (textarea.val() == "")) {
+                                       return false;
+                               }
+                       });
+               })($(this), textarea);
        });
 }
 
@@ -48,3 +68,81 @@ function addCommentLinks() {
                });
        });
 }
+
+/**
+ * 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) {
+       $.getJSON("ajax/getTranslation.ajax", {"key": key}, function(data, textStatus) {
+               callback(data.value);
+       });
+}
+
+/**
+ * Fires off an AJAX request to retrieve the current status of a Sone.
+ *
+ * @param soneId
+ *            The ID of the Sone
+ */
+function getSoneStatus(soneId) {
+       $.getJSON("ajax/getSoneStatus.ajax", {"sone": soneId}, function(data, textStatus) {
+               updateSoneStatus(soneId, data.status, data.modified, data.lastUpdated);
+               /* seconds! */
+               updateInterval = 60;
+               if (data.modified || (data.status == "downloading") || (data.status == "inserting")) {}
+                       updateInterval = 5;
+               }
+               setTimeout(function() {
+                       getSoneStatus(soneId);
+               }, updateInterval * 1000);
+       });
+}
+
+/**
+ * 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 lastUpdated
+ *            The date and time of the last update (formatted for display)
+ */
+function updateSoneStatus(soneId, status, modified, lastUpdated) {
+       $("#sone .sone." + soneId).
+               toggleClass("unknown", status == "unknown").
+               toggleClass("idle", status == "idle").
+               toggleClass("inserting", status == "inserting").
+               toggleClass("downloading", status == "downloading").
+               toggleClass("modified", modified);
+       $("#sone .sone." + soneId + " .last-update span.time").text(lastUpdated);
+}
+
+var watchedSones = {};
+
+/**
+ * Watches this Sone for updates to its status.
+ *
+ * @param soneId
+ *            The ID of the Sone to watch
+ */
+function watchSone(soneId) {
+       if (watchedSones[soneId]) {
+               return;
+       }
+       watchedSones[soneId] = true;
+       (function(soneId) {
+               setTimeout(function() {
+                       getSoneStatus(soneId);
+               }, 5000);
+       })(soneId);
+}