/*!
+ * Ext JS Library 3.3.0
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+/**
+ * @class Ext.layout.boxOverflow.Menu
+ * @extends Ext.layout.boxOverflow.None
+ * Description
+ */
+Ext.layout.boxOverflow.Menu = Ext.extend(Ext.layout.boxOverflow.None, {
+ /**
+ * @cfg afterCls
+ * @type String
+ * CSS class added to the afterCt element. This is the element that holds any special items such as scrollers,
+ * which must always be present at the rightmost edge of the Container
+ */
+ afterCls: 'x-strip-right',
+
+ /**
+ * @property noItemsMenuText
+ * @type String
+ * HTML fragment to render into the toolbar overflow menu if there are no items to display
+ */
+ noItemsMenuText : '
(None)
',
+
+ constructor: function(layout) {
+ Ext.layout.boxOverflow.Menu.superclass.constructor.apply(this, arguments);
+
+ /**
+ * @property menuItems
+ * @type Array
+ * Array of all items that are currently hidden and should go into the dropdown menu
+ */
+ this.menuItems = [];
+ },
+
+ /**
+ * @private
+ * Creates the beforeCt, innerCt and afterCt elements if they have not already been created
+ * @param {Ext.Container} container The Container attached to this Layout instance
+ * @param {Ext.Element} target The target Element
+ */
+ createInnerElements: function() {
+ if (!this.afterCt) {
+ this.afterCt = this.layout.innerCt.insertSibling({cls: this.afterCls}, 'before');
+ }
+ },
+
+ /**
+ * @private
+ */
+ clearOverflow: function(calculations, targetSize) {
+ var newWidth = targetSize.width + (this.afterCt ? this.afterCt.getWidth() : 0),
+ items = this.menuItems;
+
+ this.hideTrigger();
+
+ for (var index = 0, length = items.length; index < length; index++) {
+ items.pop().component.show();
+ }
+
+ return {
+ targetSize: {
+ height: targetSize.height,
+ width : newWidth
+ }
+ };
+ },
+
+ /**
+ * @private
+ */
+ showTrigger: function() {
+ this.createMenu();
+ this.menuTrigger.show();
+ },
+
+ /**
+ * @private
+ */
+ hideTrigger: function() {
+ if (this.menuTrigger != undefined) {
+ this.menuTrigger.hide();
+ }
+ },
+
+ /**
+ * @private
+ * Called before the overflow menu is shown. This constructs the menu's items, caching them for as long as it can.
+ */
+ beforeMenuShow: function(menu) {
+ var items = this.menuItems,
+ len = items.length,
+ item,
+ prev;
+
+ var needsSep = function(group, item){
+ return group.isXType('buttongroup') && !(item instanceof Ext.Toolbar.Separator);
+ };
+
+ this.clearMenu();
+ menu.removeAll();
+
+ for (var i = 0; i < len; i++) {
+ item = items[i].component;
+
+ if (prev && (needsSep(item, prev) || needsSep(prev, item))) {
+ menu.add('-');
+ }
+
+ this.addComponentToMenu(menu, item);
+ prev = item;
+ }
+
+ // put something so the menu isn't empty if no compatible items found
+ if (menu.items.length < 1) {
+ menu.add(this.noItemsMenuText);
+ }
+ },
+
+ /**
+ * @private
+ * Returns a menu config for a given component. This config is used to create a menu item
+ * to be added to the expander menu
+ * @param {Ext.Component} component The component to create the config for
+ * @param {Boolean} hideOnClick Passed through to the menu item
+ */
+ createMenuConfig : function(component, hideOnClick){
+ var config = Ext.apply({}, component.initialConfig),
+ group = component.toggleGroup;
+
+ Ext.copyTo(config, component, [
+ 'iconCls', 'icon', 'itemId', 'disabled', 'handler', 'scope', 'menu'
+ ]);
+
+ Ext.apply(config, {
+ text : component.overflowText || component.text,
+ hideOnClick: hideOnClick
+ });
+
+ if (group || component.enableToggle) {
+ Ext.apply(config, {
+ group : group,
+ checked: component.pressed,
+ listeners: {
+ checkchange: function(item, checked){
+ component.toggle(checked);
+ }
+ }
+ });
+ }
+
+ delete config.ownerCt;
+ delete config.xtype;
+ delete config.id;
+
+ return config;
+ },
+
+ /**
+ * @private
+ * Adds the given Toolbar item to the given menu. Buttons inside a buttongroup are added individually.
+ * @param {Ext.menu.Menu} menu The menu to add to
+ * @param {Ext.Component} component The component to add
+ */
+ addComponentToMenu : function(menu, component) {
+ if (component instanceof Ext.Toolbar.Separator) {
+ menu.add('-');
+
+ } else if (Ext.isFunction(component.isXType)) {
+ if (component.isXType('splitbutton')) {
+ menu.add(this.createMenuConfig(component, true));
+
+ } else if (component.isXType('button')) {
+ menu.add(this.createMenuConfig(component, !component.menu));
+
+ } else if (component.isXType('buttongroup')) {
+ component.items.each(function(item){
+ this.addComponentToMenu(menu, item);
+ }, this);
+ }
+ }
+ },
+
+ /**
+ * @private
+ * Deletes the sub-menu of each item in the expander menu. Submenus are created for items such as
+ * splitbuttons and buttongroups, where the Toolbar item cannot be represented by a single menu item
+ */
+ clearMenu : function(){
+ var menu = this.moreMenu;
+ if (menu && menu.items) {
+ menu.items.each(function(item){
+ delete item.menu;
+ });
+ }
+ },
+
+ /**
+ * @private
+ * Creates the overflow trigger and menu used when enableOverflow is set to true and the items
+ * in the layout are too wide to fit in the space available
+ */
+ createMenu: function() {
+ if (!this.menuTrigger) {
+ this.createInnerElements();
+
+ /**
+ * @private
+ * @property menu
+ * @type Ext.menu.Menu
+ * The expand menu - holds items for every item that cannot be shown
+ * because the container is currently not large enough.
+ */
+ this.menu = new Ext.menu.Menu({
+ ownerCt : this.layout.container,
+ listeners: {
+ scope: this,
+ beforeshow: this.beforeMenuShow
+ }
+ });
+
+ /**
+ * @private
+ * @property menuTrigger
+ * @type Ext.Button
+ * The expand button which triggers the overflow menu to be shown
+ */
+ this.menuTrigger = new Ext.Button({
+ iconCls : 'x-toolbar-more-icon',
+ cls : 'x-toolbar-more',
+ menu : this.menu,
+ renderTo: this.afterCt
+ });
+ }
+ },
+
+ /**
+ * @private
+ */
+ destroy: function() {
+ Ext.destroy(this.menu, this.menuTrigger);
+ }
+});
+
+Ext.layout.boxOverflow.menu = Ext.layout.boxOverflow.Menu;
+
+
+/**
+ * @class Ext.layout.boxOverflow.HorizontalMenu
+ * @extends Ext.layout.boxOverflow.Menu
+ * Description
+ */
+Ext.layout.boxOverflow.HorizontalMenu = Ext.extend(Ext.layout.boxOverflow.Menu, {
+
+ constructor: function() {
+ Ext.layout.boxOverflow.HorizontalMenu.superclass.constructor.apply(this, arguments);
+
+ var me = this,
+ layout = me.layout,
+ origFunction = layout.calculateChildBoxes;
+
+ layout.calculateChildBoxes = function(visibleItems, targetSize) {
+ var calcs = origFunction.apply(layout, arguments),
+ meta = calcs.meta,
+ items = me.menuItems;
+
+ //calculate the width of the items currently hidden solely because there is not enough space
+ //to display them
+ var hiddenWidth = 0;
+ for (var index = 0, length = items.length; index < length; index++) {
+ hiddenWidth += items[index].width;
+ }
+
+ meta.minimumWidth += hiddenWidth;
+ meta.tooNarrow = meta.minimumWidth > targetSize.width;
+
+ return calcs;
+ };
+ },
+
+ handleOverflow: function(calculations, targetSize) {
+ this.showTrigger();
+
+ var newWidth = targetSize.width - this.afterCt.getWidth(),
+ boxes = calculations.boxes,
+ usedWidth = 0,
+ recalculate = false;
+
+ //calculate the width of all visible items and any spare width
+ for (var index = 0, length = boxes.length; index < length; index++) {
+ usedWidth += boxes[index].width;
+ }
+
+ var spareWidth = newWidth - usedWidth,
+ showCount = 0;
+
+ //see if we can re-show any of the hidden components
+ for (var index = 0, length = this.menuItems.length; index < length; index++) {
+ var hidden = this.menuItems[index],
+ comp = hidden.component,
+ width = hidden.width;
+
+ if (width < spareWidth) {
+ comp.show();
+
+ spareWidth -= width;
+ showCount ++;
+ recalculate = true;
+ } else {
+ break;
+ }
+ }
+
+ if (recalculate) {
+ this.menuItems = this.menuItems.slice(showCount);
+ } else {
+ for (var i = boxes.length - 1; i >= 0; i--) {
+ var item = boxes[i].component,
+ right = boxes[i].left + boxes[i].width;
+
+ if (right >= newWidth) {
+ this.menuItems.unshift({
+ component: item,
+ width : boxes[i].width
+ });
+
+ item.hide();
+ } else {
+ break;
+ }
+ }
+ }
+
+ if (this.menuItems.length == 0) {
+ this.hideTrigger();
+ }
+
+ return {
+ targetSize: {
+ height: targetSize.height,
+ width : newWidth
+ },
+ recalculate: recalculate
+ };
+ }
+});
+
+Ext.layout.boxOverflow.menu.hbox = Ext.layout.boxOverflow.HorizontalMenu;