tof

src/main/zapHomeFiles/hud/tools/storage.js

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+/*
+ * Storage Tool
+ *
+ * Displays sessionStorage and localStorage interactions (whether elements are
+ * added, removed or updated to them) in a tab at the bottom of the screen.
+ */
+
+var Storage = (function() {
+  var NAME = "storage";
+  var LABEL = I18n.t("storage_tool");
+  var ICONS = {
+    CLOCK: "clock.png";
+  };
+  var tool = {};
+
+  function initializeStorage() {
+    tool.name = NAME;
+    tool.label = LABEL;
+    tool.data = 0;
+    tool.icon = ICONS.CLOCK;
+    tool.isSelected = false;
+    tool.isHidden = true;
+    tool.panel = "";
+    tool.position = 0;
+    tool.messages = [];
+
+    utils.writeTool(tool);
+  }
+
+  function showOptions(tabId) {
+    var config = {
+      tool: NAME,
+      toolLabel: LABEL,
+      options: {remove: I18n.t("common_remove")}
+    };
+
+    utils.messageFrame(tabId, "display", {action:"showButtonOptions", config:config})
+      .then(response => {
+        // Handle button choice
+        if (response.id == "remove") {
+          utils.removeToolFromPanel(tabId, NAME);
+        }
+      })
+      .catch(utils.errorHandler);
+  }
+
+  self.addEventListener("activate", event => {
+    initializeStorage();
+  });
+
+  function trimMessages(lastPageUnloadTime) {
+    utils.loadTool(NAME)
+      .then(tool => {
+        tool.messages = tool.messages.filter(message => message.timeInMs > lastPageUnloadTime)
+        utils.writeTool(tool)
+      })
+      .catch(utils.errorHandler);
+  }
+
+  self.addEventListener("message", event => {
+    var message = event.data;
+
+    // Broadcasts
+    switch(message.action) {
+      case "initializeTools":
+        initializeStorage();
+        break;
+      case "unload":
+        trimMessages(message.time)
+        break;
+      default:
+        break;
+    }
+
+    // Directed
+    if (message.tool === NAME) {
+      switch(message.action) {
+        case "buttonMenuCicked":
+          showOptions(message.tabId);
+          break;
+        default:
+          break;
+      }
+    }
+  });
+
+  self.addEventListener("updateStorageMessages", event => {
+    utils.messageAllTabs('drawer', {action: 'updateStorageMessages', messages: [message]})
+      .catch(utils.errorHandler);
+
+    tool.messages.push(message);
+    utils.writeTool(tool);
+  });
+
+  return {
+    name: NAME,
+    initialize: initializeStorage
+  };
+})();
+
+self.tools[Storage.name] = Storage;