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/*
* Copyright (C) 2013, 2015 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.ScopeBar = class ScopeBar extends WI.NavigationItem
{
constructor(identifier, items, defaultItem, shouldGroupNonExclusiveItems)
{
super(identifier);
this._element.classList.add("scope-bar");
this._items = items;
this._defaultItem = defaultItem;
this._shouldGroupNonExclusiveItems = shouldGroupNonExclusiveItems || false;
this._minimumWidth = 0;
this._populate();
}
// Public
get minimumWidth()
{
if (!this._minimumWidth) {
// If a "display: flex;" element is too small for its contents and
// has "flex-wrap: wrap;" set as well, this will cause the contents
// to wrap (potentially overflowing), thus preventing a proper
// measurement of the width of the element. Removing the "flex-wrap"
// property will ensure that the contents are rendered on one line.
this.element.style.flexWrap = "initial !important";
if (this._multipleItem)
this._multipleItem.displayWidestItem();
this._minimumWidth = this.element.realOffsetWidth;
this.element.style.flexWrap = null;
if (this._multipleItem)
this._multipleItem.displaySelectedItem();
}
return this._minimumWidth;
}
get defaultItem()
{
return this._defaultItem;
}
get items()
{
return this._items;
}
item(id)
{
return this._itemsById.get(id);
}
get selectedItems()
{
return this._items.filter((item) => item.selected);
}
hasNonDefaultItemSelected()
{
return this._items.some((item) => item.selected && item !== this._defaultItem);
}
// Private
_populate()
{
this._itemsById = new Map;
if (this._shouldGroupNonExclusiveItems) {
var nonExclusiveItems = [];
for (var item of this._items) {
this._itemsById.set(item.id, item);
if (item.exclusive)
this._element.appendChild(item.element);
else
nonExclusiveItems.push(item);
item.addEventListener(WI.ScopeBarItem.Event.SelectionChanged, this._itemSelectionDidChange, this);
}
this._multipleItem = new WI.MultipleScopeBarItem(nonExclusiveItems);
this._element.appendChild(this._multipleItem.element);
} else {
for (var item of this._items) {
this._itemsById.set(item.id, item);
this._element.appendChild(item.element);
item.addEventListener(WI.ScopeBarItem.Event.SelectionChanged, this._itemSelectionDidChange, this);
}
}
if (!this.selectedItems.length && this._defaultItem)
this._defaultItem.selected = true;
this._element.classList.toggle("default-item-selected", this._defaultItem.selected);
}
_itemSelectionDidChange(event)
{
var sender = event.target;
var item;
// An exclusive item was selected, unselect everything else.
if (sender.exclusive && sender.selected) {
for (var i = 0; i < this._items.length; ++i) {
item = this._items[i];
if (item !== sender)
item.selected = false;
}
} else {
var replacesCurrentSelection = this._shouldGroupNonExclusiveItems || !event.data.withModifier;
for (var i = 0; i < this._items.length; ++i) {
item = this._items[i];
if (item.exclusive && item !== sender && sender.selected)
item.selected = false;
else if (sender.selected && replacesCurrentSelection && sender !== item)
item.selected = false;
}
}
// If nothing is selected anymore, select the default item.
if (!this.selectedItems.length && this._defaultItem)
this._defaultItem.selected = true;
this._element.classList.toggle("default-item-selected", this._defaultItem.selected);
this.dispatchEventToListeners(WI.ScopeBar.Event.SelectionChanged);
}
};
WI.ScopeBar.Event = {
SelectionChanged: "scopebar-selection-did-change"
};
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