blob: 5b6776e1f966aa308522366a49f1ddefb2cc3d5f [file] [log] [blame]
/*
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
WI.BranchManager = class BranchManager extends WI.Object
{
constructor()
{
super();
WI.Frame.addEventListener(WI.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this);
this.initialize();
}
// Public
initialize()
{
this._originalBranch = new WI.Branch(WI.UIString("Original"), null, true);
this._currentBranch = this._originalBranch.fork(WI.UIString("Working Copy"));
this._branches = [this._originalBranch, this._currentBranch];
}
get branches()
{
return this._branches;
}
get currentBranch()
{
return this._currentBranch;
}
set currentBranch(branch)
{
console.assert(branch instanceof WI.Branch);
if (!(branch instanceof WI.Branch))
return;
this._currentBranch.revert();
this._currentBranch = branch;
this._currentBranch.apply();
}
createBranch(displayName, fromBranch)
{
if (!fromBranch)
fromBranch = this._originalBranch;
console.assert(fromBranch instanceof WI.Branch);
if (!(fromBranch instanceof WI.Branch))
return null;
var newBranch = fromBranch.fork(displayName);
this._branches.push(newBranch);
return newBranch;
}
deleteBranch(branch)
{
console.assert(branch instanceof WI.Branch);
if (!(branch instanceof WI.Branch))
return;
console.assert(branch !== this._originalBranch);
if (branch === this._originalBranch)
return;
this._branches.remove(branch);
if (branch === this._currentBranch)
this._currentBranch = this._originalBranch;
}
// Private
_mainResourceDidChange(event)
{
console.assert(event.target instanceof WI.Frame);
if (!event.target.isMainFrame())
return;
this.initialize();
}
};