blob: bfe2a6f1c5581c420468e89e865190d966447580 [file] [log] [blame]
/*
* Copyright (C) 2017 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.GroupNavigationItem = class GroupNavigationItem extends WI.NavigationItem
{
constructor(navigationItems)
{
console.assert(!navigationItems || Array.isArray(navigationItems));
super();
this._needsUpdate = false;
this.navigationItems = navigationItems || [];
}
// Public
get navigationItems()
{
return this._navigationItems;
}
set navigationItems(items)
{
this._navigationItems = items;
// Wait until a layout to update the DOM.
this._needsUpdate = true;
}
get width()
{
this._updateItems();
return super.width;
}
get minimumWidth()
{
this._updateItems();
return this._navigationItems.reduce((total, item) => total + item.minimumWidth, 0);
}
// Protected
updateLayout(expandOnly)
{
super.updateLayout(expandOnly);
for (let item of this._navigationItems)
item.updateLayout(expandOnly);
}
didAttach(navigationBar)
{
super.didAttach(navigationBar);
for (let item of this._navigationItems)
item.didAttach(navigationBar);
}
didDetach()
{
for (let item of this._navigationItems)
item.didDetach();
super.didDetach();
}
// Private
_updateItems()
{
if (!this._needsUpdate)
return;
this._needsUpdate = false;
this.element.removeChildren();
for (let item of this._navigationItems) {
console.assert(item instanceof WI.NavigationItem);
this.element.appendChild(item.element);
}
}
};