1 files changed, 189 insertions, 0 deletions
diff --git a/comm/mailnews/base/content/msgSelectOfflineFolders.js b/comm/mailnews/base/content/msgSelectOfflineFolders.js
new file mode 100644
index 0000000000..18f304bae7
--- /dev/null
+++ b/comm/mailnews/base/content/msgSelectOfflineFolders.js
@@ -0,0 +1,189 @@
+/* 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/. */
+
+/* globals PROTO_TREE_VIEW */
+
+var { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
+var { MailServices } = ChromeUtils.import(
+  "resource:///modules/MailServices.jsm"
+);
+
+XPCOMUtils.defineLazyModuleGetters(this, {
+  FolderUtils: "resource:///modules/FolderUtils.jsm",
+  MailUtils: "resource:///modules/MailUtils.jsm",
+});
+
+var gFolderTreeView = new PROTO_TREE_VIEW();
+
+var gSelectOffline = {
+  _treeElement: null,
+  _rollbackMap: new Map(),
+
+  load() {
+    for (let account of FolderUtils.allAccountsSorted(true)) {
+      let server = account.incomingServer;
+      if (
+        server instanceof Ci.nsIPop3IncomingServer &&
+        server.deferredToAccount
+      ) {
+        continue;
+      }
+      if (!server.rootFolder.supportsOffline) {
+        continue;
+      }
+
+      gFolderTreeView._rowMap.push(new FolderRow(server.rootFolder));
+    }
+
+    this._treeElement = document.getElementById("synchronizeTree");
+    // TODO: Expand relevant rows.
+    this._treeElement.view = gFolderTreeView;
+  },
+
+  onKeyPress(aEvent) {
+    // For now, only do something on space key.
+    if (aEvent.charCode != aEvent.DOM_VK_SPACE) {
+      return;
+    }
+
+    let selection = this._treeElement.view.selection;
+    let start = {};
+    let end = {};
+    let numRanges = selection.getRangeCount();
+
+    for (let range = 0; range < numRanges; range++) {
+      selection.getRangeAt(range, start, end);
+      for (let i = start.value; i <= end.value; i++) {
+        this._toggle(i);
+      }
+    }
+  },
+
+  onClick(aEvent) {
+    // We only care about button 0 (left click) events.
+    if (aEvent.button != 0) {
+      return;
+    }
+
+    // We don't want to toggle when clicking on header or tree (scrollbar) or
+    // on treecol.
+    if (aEvent.target.nodeName != "treechildren") {
+      return;
+    }
+
+    let treeCellInfo = this._treeElement.getCellAt(
+      aEvent.clientX,
+      aEvent.clientY
+    );
+
+    if (treeCellInfo.row == -1 || treeCellInfo.col.id != "syncCol") {
+      return;
+    }
+
+    this._toggle(treeCellInfo.row);
+  },
+
+  _toggle(aRow) {
+    let folder = gFolderTreeView._rowMap[aRow]._folder;
+
+    if (folder.isServer) {
+      return;
+    }
+
+    // Save our current state for rollback, if necessary.
+    if (!this._rollbackMap.has(folder)) {
+      this._rollbackMap.set(
+        folder,
+        folder.getFlag(Ci.nsMsgFolderFlags.Offline)
+      );
+    }
+
+    folder.toggleFlag(Ci.nsMsgFolderFlags.Offline);
+    gFolderTreeView._tree.invalidateRow(aRow);
+  },
+
+  onCancel() {
+    for (let [folder, value] of this._rollbackMap) {
+      if (value != folder.getFlag(Ci.nsMsgFolderFlags.Offline)) {
+        folder.toggleFlag(Ci.nsMsgFolderFlags.Offline);
+      }
+    }
+  },
+};
+
+window.addEventListener("load", () => gSelectOffline.load());
+document.addEventListener("dialogcancel", () => gSelectOffline.onCancel());
+
+/**
+ * A tree row representing a single folder.
+ */
+class FolderRow {
+  constructor(folder, parent = null) {
+    this._folder = folder;
+    this._open = false;
+    this._level = parent ? parent.level + 1 : 0;
+    this._parent = parent;
+    this._children = null;
+  }
+
+  get id() {
+    return this._folder.URI;
+  }
+
+  get text() {
+    return this.getText("folderNameCol");
+  }
+
+  getText(aColName) {
+    switch (aColName) {
+      case "folderNameCol":
+        return this._folder.abbreviatedName;
+      default:
+        return "";
+    }
+  }
+
+  get open() {
+    return this._open;
+  }
+
+  get level() {
+    return this._level;
+  }
+
+  getProperties(column) {
+    let properties = "";
+    switch (column?.id) {
+      case "folderNameCol":
+        // From folderUtils.jsm.
+        properties = FolderUtils.getFolderProperties(this._folder, this.open);
+        break;
+      case "syncCol":
+        if (this._folder.isServer) {
+          return "isServer-true";
+        }
+        properties = "syncCol";
+        if (this._folder.getFlag(Ci.nsMsgFolderFlags.Offline)) {
+          properties += " synchronize-true";
+        }
+        break;
+    }
+    return properties;
+  }
+
+  get children() {
+    if (this._children === null) {
+      this._children = [];
+      for (let subFolder of this._folder.subFolders) {
+        if (subFolder.supportsOffline) {
+          this._children.push(new FolderRow(subFolder, this));
+        }
+      }
+      this._children.sort((a, b) => a._folder.compareSortKeys(b._folder));
+    }
+    return this._children;
+  }
+}