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/* 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/. */
export var Utils = Object.freeze({
/**
* Restores frame tree |data|, starting at the given root |frame|. As the
* function recurses into descendant frames it will call cb(frame, data) for
* each frame it encounters, starting with the given root.
*/
restoreFrameTreeData(frame, data, cb) {
// Restore data for the root frame.
// The callback can abort by returning false.
if (cb(frame, data) === false) {
return;
}
if (!data.hasOwnProperty("children")) {
return;
}
// Recurse into child frames.
SessionStoreUtils.forEachNonDynamicChildFrame(frame, (subframe, index) => {
if (data.children[index]) {
this.restoreFrameTreeData(subframe, data.children[index], cb);
}
});
},
});
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