1 files changed, 178 insertions, 0 deletions
diff --git a/comm/suite/components/pref/content/pref-offlineapps.js b/comm/suite/components/pref/content/pref-offlineapps.js
new file mode 100644
index 0000000000..db7c44cb81
--- /dev/null
+++ b/comm/suite/components/pref/content/pref-offlineapps.js
@@ -0,0 +1,178 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const {DownloadUtils} = ChromeUtils.import("resource://gre/modules/DownloadUtils.jsm");
+var {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
+function Startup()
+{
+  OfflineAppsObserver.init();
+
+  let always = document.getElementById("offline-apps.allow_by_default").value;
+  UpdateNotifyBox(always);
+}
+
+var OfflineAppsObserver = {
+
+  init: function offlineAppsInit() {
+    this.update();
+    Services.obs.addObserver(this, "perm-changed");
+    window.addEventListener("unload", this);
+  },
+
+  update: function offlineAppsUpdate() {
+    UpdateActualCacheSize();
+    UpdateOfflineApps();
+  },
+
+  observe: function offlineAppsObserve(aSubject, aTopic, aData) {
+    if (aTopic == "perm-changed")
+      this.update();
+  },
+
+  handleEvent: function offlineAppsEvent(aEvent) {
+    if (aEvent.type == "unload") {
+      window.removeEventListener("unload", this);
+      Services.obs.removeObserver(this, "perm-changed");
+    }
+  }
+}
+
+function UpdateActualCacheSize()
+{
+  var visitor = {
+    onCacheStorageInfo: function(aEntryCount, aTotalSize)
+    {
+      let actualSizeLabel = document.getElementById("offlineAppSizeInfo");
+      let sizeStrings = DownloadUtils.convertByteUnits(aTotalSize);
+      let bundle = document.getElementById("bundle_prefutilities");
+      let sizeStr = bundle.getFormattedString("offlineAppSizeInfo",
+                                              sizeStrings);
+      actualSizeLabel.textContent = sizeStr;
+    },
+
+    onCacheEntryInfo: function(entryInfo)
+    {
+    },
+
+    onCacheEntryVisitCompleted: function()
+    {
+    }
+  };
+
+  Services.cache2.appCacheStorage(Services.loadContextInfo.default, null)
+                 .asyncVisitStorage(visitor, false);
+}
+
+/**
+ * Clears the application cache.
+ */
+var callback = {
+  onCacheEntryDoomed: function(aResult) {
+    UpdateActualCacheSize();
+    UpdateOfflineApps();
+  }
+};
+
+function ClearOfflineAppCache()
+{
+  try {
+    Services.cache2.appCacheStorage(Services.loadContextInfo.default, null)
+                   .asyncEvictStorage(callback);
+  } catch(ex) {}
+}
+
+function UpdateNotifyBox(aValue)
+{
+  EnableElementById("offlineNotifyAsk", !aValue);
+
+  // remove this once bug 934457 and bug 1024832 are fixed
+  document.getElementById("offlineNotifyPermissions").disabled = aValue;
+}
+
+function _getOfflineAppUsage(aPermission)
+{
+  var appCache = Cc["@mozilla.org/network/application-cache-service;1"]
+                   .getService(Ci.nsIApplicationCacheService);
+  var groups = appCache.getGroups();
+
+  var usage = 0;
+  for (let i = 0; i < groups.length; i++) {
+    let uri = Services.io.newURI(groups[i]);
+    if (aPermission.matchesURI(uri, true))
+      usage += appCache.getActiveCache(groups[i]).usage;
+  }
+  return usage;
+}
+
+/**
+ * Updates the list of offline applications.
+ */
+function UpdateOfflineApps()
+{
+  var list = document.getElementById("offlineAppsList");
+  while (list.hasChildNodes())
+    list.lastChild.remove();
+
+  var bundle = document.getElementById("bundle_prefutilities");
+  var pm = Services.perms;
+  var enumerator = pm.enumerator;
+
+  while (enumerator.hasMoreElements()) {
+    let perm = enumerator.getNext()
+                         .QueryInterface(Ci.nsIPermission);
+    if (perm.type != "offline-app" ||
+        perm.capability != pm.ALLOW_ACTION)
+      continue;
+
+    let usage = _getOfflineAppUsage(perm);
+    let row = document.createElement("listitem");
+    row.setAttribute("host", perm.principal.URI.host);
+    let converted = DownloadUtils.convertByteUnits(usage);
+    row.setAttribute("usage", bundle.getFormattedString("offlineAppUsage",
+                                                        converted));
+    list.appendChild(row);
+  }
+}
+
+function OfflineAppSelected(aList)
+{
+  document.getElementById("offlineAppsListRemove")
+          .setAttribute("disabled", !aList.selectedItem);
+}
+
+function RemoveOfflineApp()
+{
+  var list = document.getElementById("offlineAppsList");
+  var item = list.selectedItem;
+  var host = item.getAttribute("host");
+
+  var flags = Services.prompt.BUTTON_TITLE_IS_STRING * Services.prompt.BUTTON_POS_0 +
+              Services.prompt.BUTTON_TITLE_CANCEL * Services.prompt.BUTTON_POS_1;
+
+  var bundle = document.getElementById("bundle_prefutilities");
+  var title = bundle.getString("offlineAppRemoveTitle");
+  var prompt = bundle.getFormattedString("offlineAppRemovePrompt", [host]);
+  var confirm = bundle.getString("offlineAppRemoveConfirm");
+  if (Services.prompt.confirmEx(window, title, prompt, flags, confirm,
+                                null, null, null, {}))
+    return;
+
+  // clear offline cache entries
+  var appCache = Cc["@mozilla.org/network/application-cache-service;1"]
+                   .getService(Ci.nsIApplicationCacheService);
+  var groups = appCache.getGroups();
+  for (let i = 0; i < groups.length; i++) {
+      var uri = Services.io.newURI(groups[i]);
+      if (uri.asciiHost == host)
+          appCache.getActiveCache(groups[i]).discard();
+  }
+
+  // remove the permission
+  // Services.perms.remove(host, "offline-app");
+
+  UpdateOfflineApps();
+  OfflineAppSelected(list);
+  UpdateActualCacheSize();
+}