1 files changed, 142 insertions, 0 deletions
diff --git a/comm/suite/mailnews/content/folderDisplay.js b/comm/suite/mailnews/content/folderDisplay.js
new file mode 100644
index 0000000000..0318fb2e66
--- /dev/null
+++ b/comm/suite/mailnews/content/folderDisplay.js
@@ -0,0 +1,142 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* 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/. */
+
+var gFolderDisplay =
+{
+  get selectedCount()
+  {
+    return gDBView ? gDBView.numSelected : 0;
+  },
+
+  get selectedMessage()
+  {
+    if (!this.selectedIndices.length)
+      return null;
+    return gDBView.hdrForFirstSelectedMessage;
+  },
+
+  get selectedMessageUri()
+  {
+    if (!this.selectedIndices.length)
+      return null;
+    return gDBView.URIForFirstSelectedMessage;
+  },
+
+  get selectedMessageIsFeed()
+  {
+    return FeedMessageHandler.isFeedMessage(this.selectedMessage);
+  },
+
+  get selectedMessageIsImap()
+  {
+    var message = this.selectedMessage;
+    return message && message.folder &&
+           (message.folder.flags & Ci.nsMsgFolderFlags.ImapBox) != 0;
+  },
+
+  get selectedMessageIsNews()
+  {
+    var message = this.selectedMessage;
+    return message && message.folder &&
+           (message.folder.flags & Ci.nsMsgFolderFlags.Newsgroup) != 0;
+  },
+
+  get selectedMessageIsExternal()
+  {
+    var message = this.selectedMessage;
+    return message && !message.folder;
+  },
+
+  get selectedIndices()
+  {
+    return gDBView ? gDBView.getIndicesForSelection() : [];
+  },
+
+  get selectedMessages()
+  {
+    return gDBView ? gDBView.getSelectedMsgHdrs() : [];
+  },
+
+  get selectedMessageUris()
+  {
+    if (!gDBView)
+      return null;
+    var messageArray = gDBView.getURIsForSelection();
+    return messageArray.length ? messageArray : null;
+  },
+
+  get canArchiveSelectedMessages()
+  {
+    if (!gDBView)
+      return false;
+    var selectedMessages = this.selectedMessages;
+    if (selectedMessages.length == 0)
+      return false;
+    return selectedMessages.every(function(aMsg) {
+      let identity = GetIdentityForHeader(aMsg);
+      return identity && identity.archiveEnabled;
+    });
+  },
+
+  get displayedFolder()
+  {
+    return gMsgFolderSelected;
+  },
+
+   /**
+   * Determine which pane currently has focus (one of the folder pane, thread
+   * pane, or message pane). When changing focus to the message pane, be sure
+   * to focus the appropriate content window in addition to the messagepanebox
+   * (doing both is required in order to blur the previously-focused chrome
+   * element).
+   *
+   * @return the focused pane
+   */
+  get focusedPane() {
+    let panes = ["threadTree", "folderTree", "messagepanebox"].map(id =>
+        document.getElementById(id));
+
+    let currentNode = top.document.activeElement;
+
+    while (currentNode) {
+      if (panes.includes(currentNode)) {
+        return currentNode;
+      }
+
+      currentNode = currentNode.parentNode;
+    }
+    return null;
+  },
+
+}
+
+var gMessageDisplay =
+{
+  get displayedMessage()
+  {
+    if (!gDBView)
+      return null;
+    var viewIndex = gDBView.currentlyDisplayedMessage;
+    return viewIndex == nsMsgViewIndex_None ? null :
+                                              gDBView.getMsgHdrAt(viewIndex);
+  },
+
+  get isDummy()
+  {
+    return gDBView && gDBView.keyForFirstSelectedMessage == nsMsgKey_None;
+  },
+
+  get visible()
+  {
+    return !GetMessagePane().collapsed;
+  },
+
+  set visible(aVisible)
+  {
+    return aVisible; // Fake setter for the time being.
+  }
+}
+
+gFolderDisplay.messageDisplay = gMessageDisplay;