smartschool-platform/frontend/pc-web/app/view/main/Navigation.js

Ext.define('school.view.main.Navigation', {
    extend: 'Ext.panel.Panel',
    xtype: 'main-navigation',
    ui: 'nav',

    reference: 'navigationTreeList',

    width: 180,

    navCollapsed: false,
    cls: 'x-navpanel',

    menuPadding: 0,

    initComponent: function () {
        var me = this;
        var view = new Ext.DataView({
            store: Ext.create('Ext.data.Store', {
                autoLoad: true,
                fields: ['text', 'iconCls'],
                proxy: {
                    type: 'ajax',
                    url: 'resources/json/navigation.json',
                    reader: {
                        type: 'json'
                    }
                }
            }),
            tpl: new Ext.XTemplate('<ul class="x-navlist">',
                '<tpl for=".">',
                '<li class="x-navitem">',
                '<div class="x-navitem-body">',
                '<div class="nav-inner-wrap" style="margin-left: 0px;">',
                '<div class="nav-inner-icon {iconCls}"></div>',
                '<div class="nav-inner-text">{text}</div>',
                '</div>',
                '</li>',
                '</tpl>',
                '</ul>'),
            trackOver: true,
            overItemCls: 'x-navitem-over',
            selectedItemCls: 'x-navitem-selected',
            singleSelect: true,
            itemSelector: '.x-navitem',
            listeners: {
                itemmouseenter: me.showNavMenu,
                itemmouseleave: me.hideNavMenu,
                itemClick: me.clickNavMenu,
                scope: me
            }
        });

        Ext.apply(me, {
            items: [view]
        });

        me.view = view;
        me.callParent();
    },

    clickNavMenu: function (view, record, item, index, e, eOpts) {
        var me = this;
        this.showNavMenu(view, record, item, index, e, eOpts);
    },

    showNavMenu: function (navView, record, navItem, index, e, eOpts) {
        var me = this,
            recData = record.data,
            menuItems = recData.items || [],
            itemBox = navItem.getBoundingClientRect(),
            pos = [itemBox.left + itemBox.width, itemBox.top],
            id = recData.id,
            menuId = 'navMenu-' + id,
            menu = Ext.getCmp(menuId);

        if (!menu) {
            var view = new Ext.DataView({
                store: Ext.create('Ext.data.Store', {
                    fields: ['id', 'text', 'addType', 'viewType', 'ctype'],
                    data: menuItems
                }),
                tpl: new Ext.XTemplate('<div class="x-navitem-menu">',
                    '<div class="nav-menu-body">',
                            '<div class="menu">',
                                '<div class="menu-content">',
                                    '<tpl for=".">',
                                    '<div class="menuitem">',
                                        '<div class="item-text" data-text="{text}" data-viewType="{viewType}">',
                                            '{text}',
                                        '</div>',
                                    '</div>',
                                    '</tpl>',
                                '</div>',
                            '</div>',
                    '</div>',
                '</div>'),
                trackOver: true,
                overItemCls: 'menuitem-over',
                selectedItemCls: 'menuitem-selected',
                singleSelect: true,
                itemSelector: '.menuitem',
                listeners: {
                    boxready: function(view, width, height, eOpts) {
                        me.menuBoxReady(view, width, height, eOpts);
                    },
                    itemclick: me.menuItemClick
                }
            });
            var menu = Ext.create('Ext.menu.Menu', {
                navView: navView,
                navItem: navItem,
                id: menuId,
                width: 200,
                cls: 'x-nav-menu',
                layout: 'fit',
                shadow: 'drop',
                bodyPadding: me.menuPadding,
                items: [view]
            });
        }
        menu.showAt(pos);
    },

    hideNavMenu: function (view, record, item, index, e, eOpts) {
        var recData = record.data,
            cx = e.browserEvent.clientX,
            cy = e.browserEvent.clientY,
            itemBox = item.getBoundingClientRect(),
            id = recData.id,
            menuId = 'navMenu-' + id,
            menu = Ext.getCmp(menuId);

        if (cx <= itemBox.left || cy <= itemBox.top || (cy >= (itemBox.top + itemBox.height) && cx <= (itemBox.left + itemBox.width - 10))) {
            if (menu) {
                menu.hide();
            }
        }
    },

    menuBoxReady: function (view, width, height, eOpts) {
        var me = this;
        var menu = view.up('menu'),
            menuView = view.el.dom.getElementsByClassName('x-navitem-menu')[0],
            menuBox = menuView.getBoundingClientRect(),
            menuViewWidth = menuBox.width + me.menuPadding * 2,
            menuViewHeight = menuBox.height + me.menuPadding * 2,
            menuItem = menuView.getElementsByClassName('menuitem');

        menu.setWidth(menuViewWidth);
        menu.setHeight(menuViewHeight);
        menu.updateLayout();

        view.el.dom.addEventListener('mouseenter', function (e) {
            menu.show();
            menu.navItem.classList.add(menu.navView.overItemCls);
        });

        view.el.dom.addEventListener('mouseleave', function (e) {
            menu.navItem.classList.remove(menu.navView.overItemCls);
            menu.hide();
        });
    },

    menuItemClick: function(view, record, item, index, e, eOpts) {
        var viewType = record.get('view');
        var tabTitle = record.get('text');
        var tabId = record.get('id');
        var config = record.get('config') || [];
        var menu = view.up('menu');
        school.util.BaseUtil.openTab(viewType, tabTitle, tabId, config);
        menu.hide();
    }
});