devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (ui/menu/ui.menu.js)
* Version: 18.1.3
* Build date: Tue May 15 2018
*
* Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
var $ = require("../../core/renderer"),
eventsEngine = require("../../events/core/events_engine"),
registerComponent = require("../../core/component_registrator"),
commonUtils = require("../../core/utils/common"),
getPublicElement = require("../../core/utils/dom").getPublicElement,
each = require("../../core/utils/iterator").each,
typeUtils = require("../../core/utils/type"),
extend = require("../../core/utils/extend").extend,
eventUtils = require("../../events/utils"),
pointerEvents = require("../../events/pointer"),
hoverEvents = require("../../events/hover"),
MenuBase = require("../context_menu/ui.menu_base"),
Overlay = require("../overlay"),
Submenu = require("./ui.submenu"),
Button = require("../button"),
TreeView = require("../tree_view");
var DX_MENU_CLASS = "dx-menu",
DX_MENU_VERTICAL_CLASS = DX_MENU_CLASS + "-vertical",
DX_MENU_HORIZONTAL_CLASS = DX_MENU_CLASS + "-horizontal",
DX_MENU_ITEM_CLASS = DX_MENU_CLASS + "-item",
DX_MENU_ITEMS_CONTAINER_CLASS = DX_MENU_CLASS + "-items-container",
DX_MENU_ITEM_EXPANDED_CLASS = DX_MENU_ITEM_CLASS + "-expanded",
DX_CONTEXT_MENU_CLASS = "dx-context-menu",
DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS = DX_CONTEXT_MENU_CLASS + "-container-border",
DX_CONTEXT_MENU_CONTENT_DELIMITER_CLASS = "dx-context-menu-content-delimiter",
DX_SUBMENU_CLASS = "dx-submenu",
DX_STATE_DISABLED_CLASS = "dx-state-disabled",
DX_STATE_HOVER_CLASS = "dx-state-hover",
DX_STATE_ACTIVE_CLASS = "dx-state-active",
DX_ADAPTIVE_MODE_CLASS = DX_MENU_CLASS + "-adaptive-mode",
DX_ADAPTIVE_HAMBURGER_BUTTON_CLASS = DX_MENU_CLASS + "-hamburger-button",
FOCUS_UP = "up",
FOCUS_DOWN = "down",
FOCUS_LEFT = "left",
FOCUS_RIGHT = "right",
SHOW_SUBMENU_OPERATION = "showSubmenu",
NEXTITEM_OPERATION = "nextItem",
PREVITEM_OPERATION = "prevItem",
DEFAULT_DELAY = {
show: 50,
hide: 300
},
ACTIONS = ["onSubmenuShowing", "onSubmenuShown", "onSubmenuHiding", "onSubmenuHidden", "onItemContextMenu", "onItemClick", "onSelectionChanged"];
var Menu = MenuBase.inherit({
_getDefaultOptions: function() {
return extend(this.callBase(), {
orientation: "horizontal",
submenuDirection: "auto",
showFirstSubmenuMode: {
name: "onClick",
delay: {
show: 50,
hide: 300
}
},
hideSubmenuOnMouseLeave: false,
onSubmenuShowing: null,
onSubmenuShown: null,
onSubmenuHiding: null,
onSubmenuHidden: null,
adaptivityEnabled: false
})
},
_setOptionsByReference: function() {
this.callBase();
extend(this._optionsByReference, {
animation: true,
selectedItem: true
})
},
_itemElements: function() {
var rootMenuElements = this.callBase(),
submenuElements = this._submenuItemElements();
return rootMenuElements.add(submenuElements)
},
_submenuItemElements: function() {
var elements = [],
itemSelector = "." + DX_MENU_ITEM_CLASS,
currentSubmenu = this._submenus.length && this._submenus[0];
if (currentSubmenu && currentSubmenu.itemsContainer()) {
elements = currentSubmenu.itemsContainer().find(itemSelector)
}
return elements
},
_focusTarget: function() {
return this.$element()
},
_isMenuHorizontal: function() {
return "horizontal" === this.option("orientation")
},
_moveFocus: function(location) {
var argument, operation, navigationAction, $newTarget, $items = this._getAvailableItems(),
isMenuHorizontal = this._isMenuHorizontal(),
$activeItem = this._getActiveItem(true);
switch (location) {
case FOCUS_UP:
operation = isMenuHorizontal ? SHOW_SUBMENU_OPERATION : this._getItemsNavigationOperation(PREVITEM_OPERATION);
argument = isMenuHorizontal ? $activeItem : $items;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
case FOCUS_DOWN:
operation = isMenuHorizontal ? SHOW_SUBMENU_OPERATION : this._getItemsNavigationOperation(NEXTITEM_OPERATION);
argument = isMenuHorizontal ? $activeItem : $items;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
case FOCUS_RIGHT:
operation = isMenuHorizontal ? this._getItemsNavigationOperation(NEXTITEM_OPERATION) : SHOW_SUBMENU_OPERATION;
argument = isMenuHorizontal ? $items : $activeItem;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
case FOCUS_LEFT:
operation = isMenuHorizontal ? this._getItemsNavigationOperation(PREVITEM_OPERATION) : SHOW_SUBMENU_OPERATION;
argument = isMenuHorizontal ? $items : $activeItem;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
default:
return this.callBase(location)
}
if ($newTarget && 0 !== $newTarget.length) {
this.option("focusedElement", getPublicElement($newTarget))
}
},
_getItemsNavigationOperation: function(operation) {
var navOperation = operation;
if (this.option("rtlEnabled")) {
navOperation = operation === PREVITEM_OPERATION ? NEXTITEM_OPERATION : PREVITEM_OPERATION
}
return navOperation
},
_getKeyboardNavigationAction: function(operation, argument) {
var action = commonUtils.noop;
switch (operation) {
case SHOW_SUBMENU_OPERATION:
if (!argument.hasClass(DX_STATE_DISABLED_CLASS)) {
action = this._showSubmenu.bind(this, argument)
}
break;
case NEXTITEM_OPERATION:
action = this._nextItem.bind(this, argument);
break;
case PREVITEM_OPERATION:
action = this._prevItem.bind(this, argument)
}
return action
},
_clean: function() {
this.callBase();
this.option("templatesRenderAsynchronously") && clearTimeout(this._resizeEventTimer)
},
_visibilityChanged: function(visible) {
if (visible) {
this._dimensionChanged()
}
},
_isAdaptivityEnabled: function() {
return this.option("adaptivityEnabled") && "horizontal" === this.option("orientation")
},
_dimensionChanged: function() {
if (!this._isAdaptivityEnabled()) {
return
}
var $menuItems = this.$element().find("ul").first().children("li").children("." + DX_MENU_ITEM_CLASS),
menuItemsWidth = 0,
containerWidth = this.$element().outerWidth();
$menuItems.each(function(_, menuItem) {
menuItemsWidth += $(menuItem).outerWidth(true)
});
this._toggleAdaptiveMode(menuItemsWidth > containerWidth)
},
_init: function() {
this.callBase();
this._submenus = []
},
_initActions: function() {
this._actions = {};
each(ACTIONS, function(index, action) {
this._actions[action] = this._createActionByOption(action)
}.bind(this))
},
_initMarkup: function() {
this._visibleSubmenu = null;
this.$element().addClass(DX_MENU_CLASS);
this.callBase();
this.setAria("role", "menubar")
},
_render: function() {
this.callBase();
this._initAdaptivity()
},
_renderHamburgerButton: function() {
this._hamburger = new Button($("<div>").addClass(DX_ADAPTIVE_HAMBURGER_BUTTON_CLASS), {
icon: "menu",
activeStateEnabled: false,
onClick: this._toggleTreeView.bind(this)
});
return this._hamburger.$element()
},
_toggleTreeView: function(state) {
if (typeUtils.isPlainObject(state)) {
state = !this._overlay.option("visible")
}
this._overlay.option("visible", state);
this._toggleHamburgerActiveState(state)
},
_toggleHamburgerActiveState: function(state) {
this._hamburger && this._hamburger.$element().toggleClass(DX_STATE_ACTIVE_CLASS, state)
},
_toggleAdaptiveMode: function(state) {
var $menuItemsContainer = this.$element().find("." + DX_MENU_HORIZONTAL_CLASS),
$adaptiveElements = this.$element().find("." + DX_ADAPTIVE_MODE_CLASS);
if (state) {
this._hideVisibleSubmenu()
} else {
this._treeView && this._treeView.collapseAll();
this._overlay && this._toggleTreeView(state)
}
$menuItemsContainer.toggle(!state);
$adaptiveElements.toggle(state)
},
_removeAdaptivity: function() {
if (!this._$adaptiveContainer) {
return
}
this._toggleAdaptiveMode(false);
this._$adaptiveContainer.remove();
this._$adaptiveContainer = null;
this._treeView = null;
this._hamburger = null;
this._overlay = null
},
_treeviewItemClickHandler: function(e) {
this._actions.onItemClick(e);
if (!e.node.children.length) {
this._toggleTreeView(false)
}
},
_getAdaptiveOverlayOptions: function() {
var rtl = this.option("rtlEnabled"),
position = rtl ? "right" : "left";
return {
deferRendering: false,
shading: false,
animation: false,
closeOnTargetScroll: true,
onHidden: function() {
this._toggleHamburgerActiveState(false)
}.bind(this),
height: "auto",
closeOnOutsideClick: function(e) {
return !!!$(e.target).closest("." + DX_ADAPTIVE_HAMBURGER_BUTTON_CLASS).length
},
position: {
collision: "flipfit",
at: "bottom " + position,
my: "top " + position,
of: this._hamburger.$element()
}
}
},
_getTreeViewOptions: function() {
var menuOptions = {},
that = this,
optionsToTransfer = ["rtlEnabled", "width", "accessKey", "activeStateEnabled", "animation", "dataSource", "disabled", "displayExpr", "displayExpr", "focusStateEnabled", "hint", "hoverStateEnabled", "itemsExpr", "items", "itemTemplate", "selectedExpr", "selectionMode", "tabIndex", "visible"],
actionsToTransfer = ["onItemContextMenu", "onSelectionChanged"];
each(optionsToTransfer, function(_, option) {
menuOptions[option] = that.option(option)
});
each(actionsToTransfer, function(_, actionName) {
menuOptions[actionName] = function(e) {
this._actions[actionName](e)
}.bind(that)
});
return extend(menuOptions, {
animationEnabled: !!this.option("animation"),
onItemClick: that._treeviewItemClickHandler.bind(that),
onItemExpanded: function(e) {
this._overlay.repaint();
this._actions.onSubmenuShown(e)
}.bind(that),
onItemCollapsed: function(e) {
this._overlay.repaint();
this._actions.onSubmenuHidden(e)
}.bind(that),
selectNodesRecursive: false,
selectByClick: this.option("selectByClick"),
expandEvent: "click"
})
},
_initAdaptivity: function() {
if (!this._isAdaptivityEnabled()) {
return
}
this._$adaptiveContainer = $("<div>").addClass(DX_ADAPTIVE_MODE_CLASS);
var $hamburger = this._renderHamburgerButton();
this._treeView = this._createComponent($("<div>"), TreeView, this._getTreeViewOptions());
this._overlay = this._createComponent($("<div>"), Overlay, this._getAdaptiveOverlayOptions());
this._overlay.$content().append(this._treeView.$element()).addClass(DX_ADAPTIVE_MODE_CLASS).addClass(this.option("cssClass"));
this._$adaptiveContainer.append($hamburger);
this._$adaptiveContainer.append(this._overlay.$element());
this.$element().append(this._$adaptiveContainer);
this._dimensionChanged()
},
_getDelay: function(delayType) {
var delay = this.option("showFirstSubmenuMode").delay;
if (!typeUtils.isDefined(delay)) {
return DEFAULT_DELAY[delayType]
} else {
return typeUtils.isObject(delay) ? delay[delayType] : delay
}
},
_renderContainer: function() {
var $wrapper = $("<div>");
$wrapper.appendTo(this.$element()).addClass(this._isMenuHorizontal() ? DX_MENU_HORIZONTAL_CLASS : DX_MENU_VERTICAL_CLASS);
return this.callBase($wrapper)
},
_renderSubmenuItems: function(node, $itemFrame) {
var submenu = this._createSubmenu(node, $itemFrame);
this._submenus.push(submenu);
this._renderBorderElement($itemFrame);
return submenu
},
_createSubmenu: function(node, $rootItem) {
var $submenuContainer = $("<div>").addClass(DX_CONTEXT_MENU_CLASS).appendTo($rootItem);
var items = this._getChildNodes(node),
result = this._createComponent($submenuContainer, Submenu, extend(this._getSubmenuOptions(), {
_dataAdapter: this._dataAdapter,
_parentKey: node.internalFields.key,
items: items,
onHoverStart: this._clearTimeouts.bind(this),
position: this.getSubmenuPosition($rootItem)
}));
this._attachSubmenuHandlers($rootItem, result);
return result
},
_getSubmenuOptions: function() {
var $submenuTarget = $("<div>"),
isMenuHorizontal = this._isMenuHorizontal();
return {
itemTemplate: this.option("itemTemplate"),
target: $submenuTarget,
orientation: this.option("orientation"),
selectionMode: this.option("selectionMode"),
cssClass: this.option("cssClass"),
selectByClick: this.option("selectByClick"),
hoverStateEnabled: this.option("hoverStateEnabled"),
activeStateEnabled: this.option("activeStateEnabled"),
focusStateEnabled: this.option("focusStateEnabled"),
animation: this.option("animation"),
showSubmenuMode: this.option("showSubmenuMode"),
displayExpr: this.option("displayExpr"),
disabledExpr: this.option("disabledExpr"),
selectedExpr: this.option("selectedExpr"),
itemsExpr: this.option("itemsExpr"),
onSelectionChanged: this._nestedItemOnSelectionChangedHandler.bind(this),
onItemClick: this._nestedItemOnItemClickHandler.bind(this),
onItemRendered: this.option("onItemRendered"),
onLeftFirstItem: isMenuHorizontal ? null : this._moveMainMenuFocus.bind(this, PREVITEM_OPERATION),
onLeftLastItem: isMenuHorizontal ? null : this._moveMainMenuFocus.bind(this, NEXTITEM_OPERATION),
onCloseRootSubmenu: this._moveMainMenuFocus.bind(this, isMenuHorizontal ? PREVITEM_OPERATION : null),
onExpandLastSubmenu: isMenuHorizontal ? this._moveMainMenuFocus.bind(this, NEXTITEM_OPERATION) : null
}
},
_getShowFirstSubmenuMode: function() {
if (!this._isDesktopDevice()) {
return "onClick"
}
var optionValue = this.option("showFirstSubmenuMode");
return typeUtils.isObject(optionValue) ? optionValue.name : optionValue
},
_moveMainMenuFocus: function(direction) {
var $items = this._getAvailableItems(),
itemCount = $items.length,
$currentItem = $items.filter("." + DX_MENU_ITEM_EXPANDED_CLASS).eq(0),
itemIndex = $items.index($currentItem);
itemIndex += direction === PREVITEM_OPERATION ? -1 : 1;
if (itemIndex >= itemCount) {
itemIndex = 0
} else {
if (itemIndex < 0) {
itemIndex = itemCount - 1
}
}
var $newItem = $items.eq(itemIndex);
this._hideSubmenu(this._visibleSubmenu);
this.focus();
this.option("focusedElement", getPublicElement($newItem))
},
_nestedItemOnSelectionChangedHandler: function(args) {
var selectedItem = args.addedItems.length && args.addedItems[0],
submenu = Submenu.getInstance(args.element),
onSelectionChanged = this._actions.onSelectionChanged;
onSelectionChanged(args);
selectedItem && this._clearSelectionInSubmenus(selectedItem[0], submenu);
this._clearRootSelection();
this._setOptionSilent("selectedItem", selectedItem)
},
_clearSelectionInSubmenus: function(item, targetSubmenu) {
var that = this,
cleanAllSubmenus = !arguments.length;
each(this._submenus, function(index, submenu) {
var $submenu = submenu._itemContainer(),
isOtherItem = !$submenu.is(targetSubmenu && targetSubmenu._itemContainer()),
$selectedItem = $submenu.find("." + that._selectedItemClass());
if (isOtherItem && $selectedItem.length || cleanAllSubmenus) {
var selectedItemData;
$selectedItem.removeClass(that._selectedItemClass());
selectedItemData = that._getItemData($selectedItem);
if (selectedItemData) {
selectedItemData.selected = false
}
submenu._clearSelectedItems()
}
})
},
_clearRootSelection: function() {
var $prevSelectedItem = this.$element().find("." + DX_MENU_ITEMS_CONTAINER_CLASS).first().children().children().filter("." + this._selectedItemClass());
if ($prevSelectedItem.length) {
var prevSelectedItemData;
prevSelectedItemData = this._getItemData($prevSelectedItem);
prevSelectedItemData.selected = false;
$prevSelectedItem.removeClass(this._selectedItemClass())
}
},
_nestedItemOnItemClickHandler: function(e) {
this._actions.onItemClick(e)
},
_attachSubmenuHandlers: function($rootItem, submenu) {
var that = this,
$submenuOverlayContent = submenu.getOverlayContent(),
submenus = $submenuOverlayContent.find("." + DX_SUBMENU_CLASS),
submenuMouseLeaveName = eventUtils.addNamespace(hoverEvents.end, this.NAME + "_submenu");
submenu.option({
onShowing: this._submenuOnShowingHandler.bind(this, $rootItem, submenu),
onShown: this._submenuOnShownHandler.bind(this, $rootItem, submenu),
onHiding: this._submenuOnHidingHandler.bind(this, $rootItem, submenu),
onHidden: this._submenuOnHiddenHandler.bind(this, $rootItem, submenu)
});
each(submenus, function(index, submenu) {
eventsEngine.off(submenu, submenuMouseLeaveName);
eventsEngine.on(submenu, submenuMouseLeaveName, null, that._submenuMouseLeaveHandler.bind(that, $rootItem))
})
},
_submenuOnShowingHandler: function($rootItem, submenu) {
var $border = $rootItem.children("." + DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS);
this._actions.onSubmenuShowing({
rootItem: getPublicElement($rootItem),
submenu: submenu
});
$border.show();
$rootItem.addClass(DX_MENU_ITEM_EXPANDED_CLASS)
},
_submenuOnShownHandler: function($rootItem, submenu) {
this._actions.onSubmenuShown({
rootItem: getPublicElement($rootItem),
submenu: submenu
})
},
_submenuOnHidingHandler: function($rootItem, submenu, eventArgs) {
var $border = $rootItem.children("." + DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS),
args = eventArgs;
args.rootItem = getPublicElement($rootItem);
args.submenu = submenu;
this._actions.onSubmenuHiding(args);
eventArgs = args;
if (!eventArgs.cancel) {
if (this._visibleSubmenu === submenu) {
this._visibleSubmenu = null
}
$border.hide();
$rootItem.removeClass(DX_MENU_ITEM_EXPANDED_CLASS)
}
},
_submenuOnHiddenHandler: function($rootItem, submenu) {
this._actions.onSubmenuHidden({
rootItem: getPublicElement($rootItem),
submenu: submenu
})
},
_submenuMouseLeaveHandler: function($rootItem, eventArgs) {
var that = this,
target = $(eventArgs.relatedTarget).parents("." + DX_CONTEXT_MENU_CLASS)[0],
contextMenu = that._getSubmenuByRootElement($rootItem).getOverlayContent()[0];
if (that.option("hideSubmenuOnMouseLeave") && target !== contextMenu) {
that._clearTimeouts();
setTimeout(that._hideSubmenuAfterTimeout.bind(that), that._getDelay("hide"))
}
},
_hideSubmenuAfterTimeout: function() {
if (!this._visibleSubmenu) {
return
}
var isRootItemHovered = $(this._visibleSubmenu.$element().context).hasClass(DX_STATE_HOVER_CLASS),
isSubmenuItemHovered = this._visibleSubmenu.getOverlayContent().find("." + DX_STATE_HOVER_CLASS).length;
if (!isSubmenuItemHovered && !isRootItemHovered) {
this._visibleSubmenu.hide()
}
},
_getSubmenuByRootElement: function($rootItem) {
if (!$rootItem) {
return false
}
var $submenu = $rootItem.children("." + DX_CONTEXT_MENU_CLASS);
return $submenu.length && Submenu.getInstance($submenu)
},
getSubmenuPosition: function($rootItem) {
var isHorizontalMenu = this._isMenuHorizontal(),
submenuDirection = this.option("submenuDirection").toLowerCase(),
rtlEnabled = this.option("rtlEnabled"),
submenuPosition = {
collision: "flip",
of: $rootItem
};
switch (submenuDirection) {
case "leftortop":
submenuPosition.at = "left top";
submenuPosition.my = isHorizontalMenu ? "left bottom" : "right top";
break;
case "rightorbottom":
submenuPosition.at = isHorizontalMenu ? "left bottom" : "right top";
submenuPosition.my = "left top";
break;
default:
if (isHorizontalMenu) {
submenuPosition.at = rtlEnabled ? "right bottom" : "left bottom";
submenuPosition.my = rtlEnabled ? "right top" : "left top"
} else {
submenuPosition.at = rtlEnabled ? "left top" : "right top";
submenuPosition.my = rtlEnabled ? "right top" : "left top"
}
}
return submenuPosition
},
_renderBorderElement: function($item) {
$("<div>").appendTo($item).addClass(DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS).hide()
},
_itemPointerDownHandler: function(e) {
var $target = $(e.target),
$closestItem = $target.closest(this._itemElements());
if ($closestItem.hasClass("dx-menu-item-has-submenu")) {
this.option("focusedElement", null);
return
}
this.callBase(e)
},
_hoverStartHandler: function(e) {
var mouseMoveEventName = eventUtils.addNamespace(pointerEvents.move, this.NAME),
$item = this._getItemElementByEventArgs(e),
node = this._dataAdapter.getNodeByItem(this._getItemData($item)),
isSelectionActive = typeUtils.isDefined(e.buttons) && 1 === e.buttons || !typeUtils.isDefined(e.buttons) && 1 === e.which;
if (this._isItemDisabled($item)) {
return
}
eventsEngine.off($item, mouseMoveEventName);
if (!this._hasChildren(node)) {
this._showSubmenuTimer = setTimeout(this._hideSubmenuAfterTimeout.bind(this), this._getDelay("hide"));
return
}
if ("onHover" === this._getShowFirstSubmenuMode() && !isSelectionActive) {
var submenu = this._getSubmenuByElement($item);
this._clearTimeouts();
if (!submenu.isOverlayVisible()) {
eventsEngine.on($item, mouseMoveEventName, this._itemMouseMoveHandler.bind(this));
this._showSubmenuTimer = this._getDelay("hide")
}
}
},
_hoverEndHandler: function(eventArg) {
var that = this,
$item = that._getItemElementByEventArgs(eventArg),
relatedTarget = $(eventArg.relatedTarget);
that.callBase(eventArg);
that._clearTimeouts();
if (that._isItemDisabled($item)) {
return
}
if (relatedTarget.hasClass(DX_CONTEXT_MENU_CONTENT_DELIMITER_CLASS)) {
return
}
if (that.option("hideSubmenuOnMouseLeave") && !relatedTarget.hasClass(DX_MENU_ITEMS_CONTAINER_CLASS)) {
that._hideSubmenuTimer = setTimeout(function() {
that._hideSubmenuAfterTimeout()
}, that._getDelay("hide"))
}
},
_hideVisibleSubmenu: function() {
if (!this._visibleSubmenu) {
return false
}
this._hideSubmenu(this._visibleSubmenu);
return true
},
_showSubmenu: function($itemElement) {
var submenu = this._getSubmenuByElement($itemElement);
if (this._visibleSubmenu !== submenu) {
this._hideVisibleSubmenu()
}
submenu && submenu.show();
this._visibleSubmenu = submenu;
this._hoveredRootItem = $itemElement
},
_hideSubmenu: function(submenu) {
submenu && submenu.hide();
if (this._visibleSubmenu === submenu) {
this._visibleSubmenu = null
}
this._hoveredRootItem = null
},
_itemMouseMoveHandler: function(e) {
if (e.pointers && e.pointers.length) {
return
}
var that = this,
$item = $(e.currentTarget);
if (!typeUtils.isDefined(that._showSubmenuTimer)) {
return
}
that._clearTimeouts();
that._showSubmenuTimer = setTimeout(function() {
var submenu = that._getSubmenuByElement($item);
if (submenu && !submenu.isOverlayVisible()) {
that._showSubmenu($item)
}
}, that._getDelay("show"))
},
_clearTimeouts: function() {
clearTimeout(this._hideSubmenuTimer);
clearTimeout(this._showSubmenuTimer)
},
_getSubmenuByElement: function($itemElement, itemData) {
var submenu = this._getSubmenuByRootElement($itemElement);
if (submenu) {
return submenu
} else {
itemData = itemData || this._getItemData($itemElement);
var node = this._dataAdapter.getNodeByItem(itemData);
return this._hasChildren(node) && this._renderSubmenuItems(node, $itemElement)
}
},
_updateSubmenuVisibilityOnClick: function(actionArgs) {
var currentSubmenu, args = actionArgs.args.length && actionArgs.args[0];
if (!args || this._disabledGetter(args.itemData)) {
return
}
var $itemElement = $(args.itemElement);
currentSubmenu = this._getSubmenuByElement($itemElement, args.itemData);
this._updateSelectedItemOnClick(actionArgs);
if (this._visibleSubmenu) {
if (this._visibleSubmenu === currentSubmenu) {
if ("onClick" === this.option("showFirstSubmenuMode")) {
this._hideSubmenu(this._visibleSubmenu)
}
return
} else {
this._hideSubmenu(this._visibleSubmenu)
}
}
if (!currentSubmenu) {
return
}
if (!currentSubmenu.isOverlayVisible()) {
this._showSubmenu($itemElement);
return
}
},
_optionChanged: function(args) {
if (this._cancelOptionChange === args.name) {
return
}
switch (args.name) {
case "orientation":
case "submenuDirection":
this._invalidate();
break;
case "showFirstSubmenuMode":
case "hideSubmenuOnMouseLeave":
break;
case "showSubmenuMode":
this._changeSubmenusOption(args.name, args.value);
break;
case "onSubmenuShowing":
case "onSubmenuShown":
case "onSubmenuHiding":
case "onSubmenuHidden":
this._initActions();
break;
case "adaptivityEnabled":
args.value ? this._initAdaptivity() : this._removeAdaptivity();
break;
case "width":
if (this._isAdaptivityEnabled()) {
this._treeView.option(args.name, args.value);
this._overlay.option(args.name, args.value)
}
this.callBase(args);
this._dimensionChanged();
break;
case "animation":
if (this._isAdaptivityEnabled()) {
this._treeView.option("animationEnabled", !!args.value)
}
this.callBase(args);
break;
default:
if (this._isAdaptivityEnabled()) {
this._treeView.option(args.name, args.value)
}
this.callBase(args)
}
},
_changeSubmenusOption: function(name, value) {
each(this._submenus, function(index, submenu) {
submenu.option(name, value)
})
},
selectItem: function(itemElement) {
this._hideSubmenu(this._visibleSubmenu);
this.callBase(itemElement)
},
unselectItem: function(itemElement) {
this._hideSubmenu(this._visibleSubmenu);
this.callBase(itemElement)
}
});
registerComponent("dxMenu", Menu);
module.exports = Menu;