web-apps/apps/common/main/lib/component/Menu.js

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/*
*
* (c) Copyright Ascensio System SIA 2010-2019
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*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
* street, Riga, Latvia, EU, LV-1050.
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*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
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/**
* Menu.js
*
* A menu object. This is the container to which you may add {@link Common.UI.MenuItem menu items}.
*
* Created by Alexander Yuzhin on 1/28/14
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* Copyright (c) 2018 Ascensio System SIA. All rights reserved.
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*
*/
/**
* Default template
*
* <ul class="dropdown-menu" role="menu">
* <li><a href="#">item 1</a></li>-->
* <li><a href="#">item 2</a></li>-->
* <li class="divider"></li>-->
* <li><a href="#">item 3</a></li>
* </ul>
*
* A useful classes of menu position
*
* - `'pull-right'` using for layout menu by right side of a parent
*
*
* Example usage:
*
* new Common.UI.Menu({
* items: [
* { caption: 'item 1', value: 1 },
* { caption: 'item 1', value: 2 },
* { caption: '--' },
* { caption: 'item 1', value: 3 },
* ]
* })
*
* @property {Object} itemTemplate
*
* Default template for items
*
*
* @property {Array} items
*
* Arrow of the {Common.UI.MenuItem} menu items
*
*
* @property {Boolean/Number} restoreHeight
*
* Adjust to the browser height and restore to restoreHeight when it's Number
*
*
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*/
if (Common === undefined)
var Common = {};
define([
'common/main/lib/extend/Bootstrap',
'common/main/lib/component/BaseView',
'common/main/lib/component/MenuItem',
'common/main/lib/component/Scroller'
], function () {
'use strict';
Common.UI.Menu = (function(){
var manager = (function(){
var active = [],
menus = {};
return {
register: function(menu) {
menus[menu.id] = menu;
menu
.on('show:after', function(m) {
active.push(m);
})
.on('hide:after', function(m) {
var index = active.indexOf(m);
if (index > -1)
active.splice(index, 1);
});
},
unregister: function(menu) {
var index = active.indexOf(menu);
delete menus[menu.id];
if (index > -1)
active.splice(index, 1);
menu.off('show:after').off('hide:after');
},
hideAll: function() {
Common.NotificationCenter.trigger('menumanager:hideall');
if (active && active.length > 0) {
_.each(active, function(menu) {
if (menu) menu.hide();
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});
return true;
}
return false;
}
}
})();
return _.extend(Common.UI.BaseView.extend({
options : {
cls : '',
style : '',
itemTemplate: null,
items : [],
menuAlign : 'tl-bl',
menuAlignEl : null,
offset : [0, 0],
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cyclic : true,
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search : false,
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scrollAlwaysVisible: true
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},
template: _.template([
'<ul class="dropdown-menu <%= options.cls %>" oo_editor_input="true" style="<%= options.style %>" role="menu"></ul>'
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].join('')),
initialize : function(options) {
Common.UI.BaseView.prototype.initialize.call(this, options);
var me = this;
this.id = this.options.id || Common.UI.getId();
this.itemTemplate = this.options.itemTemplate || Common.UI.MenuItem.prototype.template;
this.rendered = false;
this.items = [];
this.offset = [0, 0];
this.menuAlign = this.options.menuAlign;
this.menuAlignEl = this.options.menuAlignEl;
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this.scrollAlwaysVisible = this.options.scrollAlwaysVisible;
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this.search = this.options.search;
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this.outerMenu = this.options.outerMenu;
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if (this.options.restoreHeight) {
this.options.restoreHeight = (typeof (this.options.restoreHeight) == "number") ? this.options.restoreHeight : (this.options.maxHeight ? this.options.maxHeight : 100000);
!this.options.maxHeight && (this.options.maxHeight = this.options.restoreHeight);
}
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if (!this.options.cyclic) this.options.cls += ' no-cyclic';
_.each(this.options.items, function(item) {
if (item instanceof Common.UI.MenuItem) {
me.items.push(item)
} else {
me.items.push(
new Common.UI.MenuItem(_.extend({
tagName : 'li',
template: me.itemTemplate
}, item))
);
}
});
if (this.options.el)
this.render();
manager.register(this);
},
remove: function() {
manager.unregister(this);
Common.UI.BaseView.prototype.remove.call(this);
},
render: function(parentEl) {
var me = this;
this.trigger('render:before', this);
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this.cmpEl = me.$el || $(this.el);
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if (parentEl) {
this.setElement(parentEl, false);
if (!me.rendered) {
this.cmpEl = $(this.template({
options : me.options
}));
parentEl.append(this.cmpEl);
}
} else {
if (!me.rendered) {
this.cmpEl = this.template({
options : me.options
});
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this.$el.append(this.cmpEl);
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}
}
var rootEl = this.cmpEl.parent(),
menuRoot = (rootEl.attr('role') === 'menu') ? rootEl : rootEl.find('[role=menu]');
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this.menuRoot = menuRoot;
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if (menuRoot) {
if (!me.rendered) {
_.each(me.items || [], function(item) {
menuRoot.append(item.render().el);
item.on('click', _.bind(me.onItemClick, me));
item.on('toggle', _.bind(me.onItemToggle, me));
});
}
if (this.options.maxHeight) {
menuRoot.css({'max-height': me.options.maxHeight});
this.scroller = new Common.UI.Scroller({
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el: me.$el.find('.dropdown-menu '),
minScrollbarLength: 30,
suppressScrollX: true,
alwaysVisibleY: this.scrollAlwaysVisible
});
}
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menuRoot.css({
position : 'fixed',
right : 'auto',
left : -1000,
top : -1000
});
this.parentEl = menuRoot.parent();
this.parentEl.on('show.bs.dropdown', _.bind(me.onBeforeShowMenu, me));
this.parentEl.on('shown.bs.dropdown', _.bind(me.onAfterShowMenu, me));
this.parentEl.on('hide.bs.dropdown', _.bind(me.onBeforeHideMenu, me));
this.parentEl.on('hidden.bs.dropdown', _.bind(me.onAfterHideMenu, me));
this.parentEl.on('keydown.after.bs.dropdown', _.bind(me.onAfterKeydownMenu, me));
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this.parentEl.on('keydown.before.bs.dropdown', _.bind(me.onBeforeKeydownMenu, me));
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this.options.innerMenus && this.on('keydown:before', _.bind(me.onBeforeKeyDown, me));
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menuRoot.hover(
function(e) { me.isOver = true;},
function(e) { me.isOver = false; }
);
}
this.rendered = true;
this.trigger('render:after', this);
return this;
},
isVisible: function() {
return this.rendered && (this.cmpEl.is(':visible'));
},
show: function() {
if (this.rendered && this.parentEl && !this.parentEl.hasClass('open')) {
this.cmpEl.dropdown('toggle');
}
},
hide: function() {
if (this.rendered && this.parentEl) {
if ( this.parentEl.hasClass('open') )
this.cmpEl.dropdown('toggle');
else if (this.parentEl.hasClass('over'))
this.parentEl.removeClass('over');
}
},
insertItem: function(index, item) {
var me = this,
el = this.cmpEl;
if (!(item instanceof Common.UI.MenuItem)) {
item = new Common.UI.MenuItem(_.extend({
tagName : 'li',
template: me.itemTemplate
}, item));
}
if (index < 0 || index >= me.items.length)
me.items.push(item);
else
me.items.splice(index, 0, item);
if (this.rendered) {
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var menuRoot = this.menuRoot;
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if (menuRoot) {
if (index < 0) {
menuRoot.append(item.render().el);
} else if (index === 0) {
menuRoot.prepend(item.render().el);
} else {
menuRoot.children('li:nth-child(' + (index+1) + ')').before(item.render().el);
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}
item.on('click', _.bind(me.onItemClick, me));
item.on('toggle', _.bind(me.onItemToggle, me));
}
}
},
addItem: function(item) {
this.insertItem(-1, item);
},
removeItem: function(item) {
var me = this,
index = me.items.indexOf(item);
if (index > -1) {
me.items.splice(index, 1);
item.off('click').off('toggle');
item.remove();
}
},
removeItems: function(from, len) {
if (from > this.items.length-1) return;
if (from+len>this.items.length) len = this.items.length - from;
for (var i=from; i<from+len; i++) {
this.items[i].off('click').off('toggle');
this.items[i].remove();
}
this.items.splice(from, len);
},
removeAll: function() {
var me = this;
_.each(me.items, function(item){
item.off('click').off('toggle');
item.remove();
});
me.items = [];
},
onBeforeShowMenu: function(e) {
Common.NotificationCenter.trigger('menu:show');
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this.trigger('show:before', this, e);
(e && e.target===e.currentTarget) && this.alignPosition();
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},
onAfterShowMenu: function(e) {
this.trigger('show:after', this, e);
if (this.scroller && e && e.target===e.currentTarget) {
var menuRoot = this.menuRoot;
if (this.wheelSpeed===undefined) {
var item = menuRoot.find('> li:first'),
itemHeight = (item.length) ? item.outerHeight() : 1;
this.wheelSpeed = Math.min((Math.floor(menuRoot.height()/itemHeight) * itemHeight)/10, 20);
}
this.scroller.update({alwaysVisibleY: this.scrollAlwaysVisible, wheelSpeed: this.wheelSpeed});
var $selected = menuRoot.find('> li .checked');
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if ($selected.length) {
var itemTop = $selected.position().top,
itemHeight = $selected.outerHeight(),
listHeight = menuRoot.outerHeight();
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if (itemTop < 0 || itemTop + itemHeight > listHeight) {
var height = menuRoot.scrollTop() + itemTop + (itemHeight - listHeight)/2;
height = (Math.floor(height/itemHeight) * itemHeight);
menuRoot.scrollTop(height);
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}
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setTimeout(function(){$selected.focus();}, 1);
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}
}
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this._search = {};
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},
onBeforeHideMenu: function(e) {
this.trigger('hide:before', this, e);
if (Common.UI.Scroller.isMouseCapture())
e.preventDefault();
},
onAfterHideMenu: function(e, isFromInputControl) {
this.trigger('hide:after', this, e, isFromInputControl);
Common.NotificationCenter.trigger('menu:hide', this, isFromInputControl);
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},
onAfterKeydownMenu: function(e) {
this.trigger('keydown:before', this, e);
if (e.isDefaultPrevented())
return;
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if (e.keyCode == Common.UI.Keys.RETURN) {
var li = $(e.target).closest('li');
if (li.length<=0) li = $(e.target).parent().find('li .dataview');
if (li.length>0) li.click();
if (!li.hasClass('dropdown-submenu'))
Common.UI.Menu.Manager.hideAll();
if ( $(e.currentTarget).closest('li').hasClass('dropdown-submenu')) {
e.stopPropagation();
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return false;
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}
} else if (e.keyCode == Common.UI.Keys.UP || e.keyCode == Common.UI.Keys.DOWN) {
this.fromKeyDown = true;
} else if (e.keyCode == Common.UI.Keys.ESC) {
// Common.NotificationCenter.trigger('menu:afterkeydown', e);
// return false;
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} else if (this.search && e.keyCode > 64 && e.keyCode < 91 && e.key){
var me = this;
clearTimeout(this._search.timer);
this._search.timer = setTimeout(function () { me._search = {}; }, 1000);
(!this._search.text) && (this._search.text = '');
(!this._search.char) && (this._search.char = e.key);
(this._search.char !== e.key) && (this._search.full = true);
this._search.text += e.key;
if (this._search.index===undefined) {
var $items = this.menuRoot.find('> li').find('> a');
this._search.index = $items.index($items.filter(':focus'));
}
this.selectCandidate();
}
},
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onBeforeKeydownMenu: function(e) {
if (e.isDefaultPrevented() || !(this.outerMenu && this.outerMenu.menu))
return;
if (e.keyCode == Common.UI.Keys.UP || e.keyCode == Common.UI.Keys.DOWN) {
var $items = this.menuRoot.find('> li').find('> a'),
index = $items.index($items.filter(':focus'));
if (e.keyCode==Common.UI.Keys.UP && index==0 || e.keyCode == Common.UI.Keys.DOWN && index==$items.length-1) {
this.outerMenu.menu.focusOuter(e, this.outerMenu.index);
e.preventDefault();
e.stopPropagation();
}
}
},
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selectCandidate: function() {
var index = this._search.index || 0,
re = new RegExp('^' + ((this._search.full) ? this._search.text : this._search.char), 'i'),
itemCandidate, idxCandidate;
for (var i=0; i<this.items.length; i++) {
var item = this.items[i];
if (re.test(item.caption)) {
if (!itemCandidate) {
itemCandidate = item;
idxCandidate = i;
}
if (this._search.full && i==index || i>index) {
itemCandidate = item;
idxCandidate = i;
break;
}
}
}
if (itemCandidate) {
this._search.index = idxCandidate;
var item = itemCandidate.cmpEl.find('a');
if (this.scroller) {
this.scroller.update({alwaysVisibleY: this.scrollAlwaysVisible, wheelSpeed: this.wheelSpeed});
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var itemTop = item.position().top,
itemHeight = item.outerHeight(),
listHeight = this.menuRoot.outerHeight();
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if (itemTop < 0 || itemTop + itemHeight > listHeight) {
var height = this.menuRoot.scrollTop() + itemTop;
height = (Math.floor(height/itemHeight) * itemHeight);
this.menuRoot.scrollTop(height);
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}
}
item.focus();
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}
},
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onBeforeKeyDown: function(menu, e) {
if (e.keyCode == Common.UI.Keys.RETURN) {
var li = $(e.target).closest('li');
if (li.length>0) {
e.preventDefault();
e.stopPropagation();
li.click();
}
Common.UI.Menu.Manager.hideAll();
} else if (e.namespace!=="after.bs.dropdown" && (e.keyCode == Common.UI.Keys.DOWN || e.keyCode == Common.UI.Keys.UP)) {
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if ( this.menuRoot.length<1 || $(e.target).closest('ul[role=menu]').get(0) !== this.menuRoot.get(0)) return;
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var innerMenu = this.findInnerMenu(e.keyCode);
if (innerMenu && innerMenu.focusInner) {
e.preventDefault();
e.stopPropagation();
_.delay(function() {
innerMenu.focusInner(e);
}, 10);
}
}
},
setInnerMenu: function(menus) {
if (this.options.innerMenus || !menus) return;
this.options.innerMenus = menus;
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this.rendered && this.on('keydown:before', _.bind(this.onBeforeKeyDown, this));
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},
findInnerMenu: function(direction, index, findOuter) {
if (!this.options.innerMenus) return;
var $allItems = $('> li', this.menuRoot),
$liItems = $('> li:not(.divider):not(.disabled):visible', this.menuRoot),
length = $liItems.length;
if (!length) return;
var step = 0;
while (step<length) {
var focusedIndex = (index!==undefined) ? $liItems.index($allItems.eq(index)) : $liItems.index($liItems.find('> a').filter(':focus').parent());
var checkedIndex = (direction == Common.UI.Keys.DOWN) ? (focusedIndex<length-1 ? focusedIndex+1 : 0) : (focusedIndex>0 ? focusedIndex-1 : length-1),
checkedItem = $liItems.eq(checkedIndex);
index = $allItems.index(checkedItem);
for (var i=0; i<this.options.innerMenus.length; i++) {
var item = this.options.innerMenus[i];
if (item && item.menu && item.index==index) {
return item.menu;
}
}
if (checkedItem.find('> a').length>0)
return findOuter ? checkedItem : undefined;
step++;
}
},
focusInner: function(e) {
if (e.keyCode == Common.UI.Keys.UP)
this.items[this.items.length-1].cmpEl.find('> a').focus();
else
this.items[0].cmpEl.find('> a').focus();
},
focusOuter: function(e, index) {
var innerMenu = this.findInnerMenu(e.keyCode, index, true);
if (innerMenu && innerMenu.focusInner) {
_.delay(function() {
innerMenu.focusInner(e);
}, 10);
} else if (innerMenu) {
innerMenu.find('> a').focus();
} else {
var $items = $('> li:not(.divider):not(.disabled):visible', this.menuRoot).find('> a'),
length = $items.length;
length && $items.eq(e.keyCode == Common.UI.Keys.UP ? (index<0 ? length-1 : index) : (index>=length-1 ? 0 : index+1)).focus();
}
},
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onItemClick: function(item, e) {
if (!item.menu) this.isOver = false;
if (item.options.stopPropagation) {
e.stopPropagation();
var me = this;
_.delay(function(){
me.$el.parent().parent().find('[data-toggle=dropdown]').focus();
}, 10);
return;
}
this.trigger('item:click', this, item, e);
},
onItemToggle: function(item, state, e) {
this.trigger('item:toggle', this, item, state, e);
},
setOffset: function(offsetX, offsetY) {
this.offset[0] = _.isUndefined(offsetX) ? this.offset[0] : offsetX;
this.offset[1] = _.isUndefined(offsetY) ? this.offset[1] : offsetY;
this.alignPosition();
},
getOffset: function() {
return this.offset;
},
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alignPosition: function(fixedAlign, fixedOffset) {
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var menuRoot = this.menuRoot,
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menuParent = this.menuAlignEl || menuRoot.parent(),
m = this.menuAlign.match(/^([a-z]+)-([a-z]+)/),
offset = menuParent.offset(),
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docW = Common.Utils.innerWidth() - 10,
docH = Common.Utils.innerHeight() - 10, // Yep, it's magic number
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menuW = menuRoot.outerWidth(),
menuH = menuRoot.outerHeight(),
parentW = menuParent.outerWidth(),
parentH = menuParent.outerHeight();
var posMenu = {
'tl': [0, 0],
'bl': [0, menuH],
'tr': [menuW, 0],
'br': [menuW, menuH]
};
var posParent = {
'tl': [0, 0],
'tr': [parentW, 0],
'bl': [0, parentH],
'br': [parentW, parentH]
};
var left = offset.left - posMenu[m[1]][0] + posParent[m[2]][0] + this.offset[0];
var top = offset.top - posMenu[m[1]][1] + posParent[m[2]][1] + this.offset[1];
if (left + menuW > docW)
if (menuParent.is('li.dropdown-submenu')) {
left = offset.left - menuW + 2;
} else {
left = docW - menuW;
}
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if (left < 0)
left = 0;
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if (this.options.restoreHeightAndTop) { // can change top position, if top<0 - then change menu height
var cg = Common.Utils.croppedGeometry();
docH = cg.height - 10;
menuRoot.css('max-height', 'none');
menuH = menuRoot.outerHeight();
if (top + menuH > docH + cg.top) {
top = docH - menuH;
}
if (top < cg.top)
top = cg.top;
if (top + menuH > docH + cg.top) {
menuRoot.css('max-height', (docH - top) + 'px');
(!this.scroller) && (this.scroller = new Common.UI.Scroller({
el: this.$el.find('> .dropdown-menu '),
minScrollbarLength: 30,
suppressScrollX: true,
alwaysVisibleY: this.scrollAlwaysVisible
}));
this.wheelSpeed = undefined;
}
this.scroller && this.scroller.update({alwaysVisibleY: this.scrollAlwaysVisible});
} else if (this.options.restoreHeight) {
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if (typeof (this.options.restoreHeight) == "number") {
if (top + menuH > docH) {
menuRoot.css('max-height', (docH - top) + 'px');
(!this.scroller) && (this.scroller = new Common.UI.Scroller({
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el: this.$el.find('.dropdown-menu '),
minScrollbarLength: 30,
suppressScrollX: true,
alwaysVisibleY: this.scrollAlwaysVisible
}));
this.wheelSpeed = undefined;
} else if ( top + menuH < docH && menuRoot.height() < this.options.restoreHeight) {
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menuRoot.css('max-height', (Math.min(docH - top, this.options.restoreHeight)) + 'px');
this.wheelSpeed = undefined;
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}
}
} else {
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var cg = Common.Utils.croppedGeometry();
docH = cg.height - 10;
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if (top + menuH > docH + cg.top) {
if (fixedAlign && typeof fixedAlign == 'string') { // how to align if menu height > window height
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m = fixedAlign.match(/^([a-z]+)-([a-z]+)/);
top = offset.top - posMenu[m[1]][1] + posParent[m[2]][1] + this.offset[1] + (fixedOffset || 0);
} else
top = docH - menuH;
}
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if (top < cg.top)
top = cg.top;
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}
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if (this.options.additionalAlign)
this.options.additionalAlign.call(this, menuRoot, left, top);
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else {
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var _css = {left: left, top: top};
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if (!(menuH < docH)) _css['margin-top'] = 0;
menuRoot.css(_css);
}
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},
clearAll: function() {
_.each(this.items, function(item){
if (item.setChecked)
item.setChecked(false, true);
});
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}
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}), {
Manager: (function() {
return manager;
})()
})
})();
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Common.UI.MenuSimple = Common.UI.BaseView.extend({
options : {
cls : '',
style : '',
itemTemplate: null,
items : [],
menuAlign : 'tl-bl',
menuAlignEl : null,
offset : [0, 0],
cyclic : true,
search : false,
scrollAlwaysVisible: true
},
template: _.template([
'<ul class="dropdown-menu <%= options.cls %>" oo_editor_input="true" style="<%= options.style %>" role="menu">',
'<% _.each(items, function(item) { %>',
'<% if (!item.id) item.id = Common.UI.getId(); %>',
'<% item.checked = item.checked || false; %>',
'<li><%= itemTemplate(item) %></li>',
'<% }) %>',
'</ul>'
].join('')),
initialize : function(options) {
Common.UI.BaseView.prototype.initialize.call(this, options);
var me = this;
this.id = this.options.id || Common.UI.getId();
this.itemTemplate = this.options.itemTemplate || _.template([
'<a id="<%= id %>" <% if(typeof style !== "undefined") { %> style="<%= style %>" <% } %>',
'<% if(typeof canFocused !== "undefined") { %> tabindex="-1" type="menuitem" <% } %>',
'<% if(typeof stopPropagation !== "undefined") { %> data-stopPropagation="true" <% } %>',
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'class="<% if (checked) { %> checked <% } %>" >',
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'<% if (typeof iconCls !== "undefined") { %>',
'<span class="menu-item-icon <%= iconCls %>"></span>',
'<% } %>',
'<%= caption %>',
'</a>'
].join(''));
this.rendered = false;
this.items = this.options.items || [];
this.offset = [0, 0];
this.menuAlign = this.options.menuAlign;
this.menuAlignEl = this.options.menuAlignEl;
this.scrollAlwaysVisible = this.options.scrollAlwaysVisible;
this.search = this.options.search;
if (this.options.restoreHeight) {
this.options.restoreHeight = (typeof (this.options.restoreHeight) == "number") ? this.options.restoreHeight : (this.options.maxHeight ? this.options.maxHeight : 100000);
!this.options.maxHeight && (this.options.maxHeight = this.options.restoreHeight);
}
if (!this.options.cyclic) this.options.cls += ' no-cyclic';
if (this.options.el)
this.render();
Common.UI.Menu.Manager.register(this);
},
remove: function() {
Common.UI.Menu.Manager.unregister(this);
Common.UI.BaseView.prototype.remove.call(this);
},
render: function(parentEl) {
var me = this;
this.trigger('render:before', this);
this.cmpEl = me.$el || $(this.el);
parentEl && this.setElement(parentEl, false);
if (!me.rendered) {
this.cmpEl = $(this.template({
items: me.items,
itemTemplate: me.itemTemplate,
options : me.options
}));
parentEl ? parentEl.append(this.cmpEl) : this.$el.append(this.cmpEl);
}
var rootEl = this.cmpEl.parent(),
menuRoot = (rootEl.attr('role') === 'menu') ? rootEl : rootEl.find('[role=menu]');
this.menuRoot = menuRoot;
if (menuRoot) {
if (!me.rendered) {
menuRoot.on( "click", "li", _.bind(me.onItemClick, me));
menuRoot.on( "mousedown", "li", _.bind(me.onItemMouseDown, me));
}
if (this.options.maxHeight) {
menuRoot.css({'max-height': me.options.maxHeight});
this.scroller = new Common.UI.Scroller({
el: me.$el.find('.dropdown-menu '),
minScrollbarLength: 30,
suppressScrollX: true,
alwaysVisibleY: this.scrollAlwaysVisible
});
}
menuRoot.css({
position : 'fixed',
right : 'auto',
left : -1000,
top : -1000
});
this.parentEl = menuRoot.parent();
this.parentEl.on('show.bs.dropdown', _.bind(me.onBeforeShowMenu, me));
this.parentEl.on('shown.bs.dropdown', _.bind(me.onAfterShowMenu, me));
this.parentEl.on('hide.bs.dropdown', _.bind(me.onBeforeHideMenu, me));
this.parentEl.on('hidden.bs.dropdown', _.bind(me.onAfterHideMenu, me));
this.parentEl.on('keydown.after.bs.dropdown', _.bind(me.onAfterKeydownMenu, me));
menuRoot.hover(
function(e) { me.isOver = true;},
function(e) { me.isOver = false; }
);
}
this.rendered = true;
this.trigger('render:after', this);
return this;
},
resetItems: function(items) {
this.items = items || [];
this.$items = null;
var template = _.template([
'<% _.each(items, function(item) { %>',
'<% if (!item.id) item.id = Common.UI.getId(); %>',
'<% item.checked = item.checked || false; %>',
'<li><%= itemTemplate(item) %></li>',
'<% }) %>'
].join(''));
this.cmpEl && this.cmpEl.html(template({
items: this.items,
itemTemplate: this.itemTemplate,
options : this.options
}));
},
isVisible: function() {
return this.rendered && (this.cmpEl.is(':visible'));
},
show: function() {
if (this.rendered && this.parentEl && !this.parentEl.hasClass('open')) {
this.cmpEl.dropdown('toggle');
}
},
hide: function() {
if (this.rendered && this.parentEl) {
if ( this.parentEl.hasClass('open') )
this.cmpEl.dropdown('toggle');
else if (this.parentEl.hasClass('over'))
this.parentEl.removeClass('over');
}
},
onItemClick: function(e) {
if (e.which != 1 && e.which !== undefined)
return false;
var index = $(e.currentTarget).closest('li').index(),
item = (index>=0) ? this.items[index] : null;
if (!item) return;
if (item.disabled)
return false;
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if (item.checkable && !item.checked)
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this.setChecked(index, !item.checked);
this.isOver = false;
if (item.stopPropagation) {
e.stopPropagation();
var me = this;
_.delay(function(){
me.$el.parent().parent().find('[data-toggle=dropdown]').focus();
}, 10);
return;
}
this.trigger('item:click', this, item, e);
},
onItemMouseDown: function(e) {
if (e.which != 1) {
e.preventDefault();
e.stopPropagation();
return false;
}
e.stopPropagation();
},
setChecked: function(index, check, suppressEvent) {
this.toggle(index, check, suppressEvent);
},
toggle: function(index, toggle, suppressEvent) {
var state = !!toggle;
var item = this.items[index];
this.clearAll();
if (item && item.checkable) {
item.checked = state;
if (this.rendered) {
var itemEl = item.el || this.cmpEl.find('#'+item.id);
if (itemEl) {
itemEl.toggleClass('checked', item.checked);
if (!_.isEmpty(item.iconCls)) {
itemEl.css('background-image', 'none');
}
}
}
if (!suppressEvent)
this.trigger('item:toggle', this, item, state);
}
},
setDisabled: function(disabled) {
this.disabled = !!disabled;
if (this.rendered)
this.cmpEl.toggleClass('disabled', this.disabled);
},
isDisabled: function() {
return this.disabled;
},
onBeforeShowMenu: function(e) {
Common.NotificationCenter.trigger('menu:show');
this.trigger('show:before', this, e);
(e && e.target===e.currentTarget) && this.alignPosition();
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},
onAfterShowMenu: function(e) {
this.trigger('show:after', this, e);
if (this.scroller && e && e.target===e.currentTarget) {
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this.scroller.update({alwaysVisibleY: this.scrollAlwaysVisible});
var menuRoot = this.menuRoot,
$selected = menuRoot.find('> li .checked');
if ($selected.length) {
var itemTop = $selected.position().top,
itemHeight = $selected.outerHeight(),
listHeight = menuRoot.outerHeight();
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if (itemTop < 0 || itemTop + itemHeight > listHeight) {
var height = menuRoot.scrollTop() + itemTop + (itemHeight - listHeight)/2;
height = (Math.floor(height/itemHeight) * itemHeight);
menuRoot.scrollTop(height);
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}
setTimeout(function(){$selected.focus();}, 1);
}
}
this._search = {};
if (this.search && !this.$items) {
var me = this;
this.$items = this.menuRoot.find('> li').find('> a');
_.each(this.$items, function(item, index) {
me.items[index].el = $(item);
});
}
},
onBeforeHideMenu: function(e) {
this.trigger('hide:before', this, e);
if (Common.UI.Scroller.isMouseCapture())
e.preventDefault();
},
onAfterHideMenu: function(e, isFromInputControl) {
this.trigger('hide:after', this, e, isFromInputControl);
Common.NotificationCenter.trigger('menu:hide', this, isFromInputControl);
},
onAfterKeydownMenu: function(e) {
if (e.keyCode == Common.UI.Keys.RETURN) {
var li = $(e.target).closest('li');
if (li.length<=0) li = $(e.target).parent().find('li .dataview');
if (li.length>0) li.click();
if (!li.hasClass('dropdown-submenu'))
Common.UI.Menu.Manager.hideAll();
if ( $(e.currentTarget).closest('li').hasClass('dropdown-submenu')) {
e.stopPropagation();
return false;
}
} else if (e.keyCode == Common.UI.Keys.UP || e.keyCode == Common.UI.Keys.DOWN) {
this.fromKeyDown = true;
} else if (e.keyCode == Common.UI.Keys.ESC) {
// Common.NotificationCenter.trigger('menu:afterkeydown', e);
// return false;
} else if (this.search && e.keyCode > 64 && e.keyCode < 91 && e.key){
var me = this;
clearTimeout(this._search.timer);
this._search.timer = setTimeout(function () { me._search = {}; }, 1000);
(!this._search.text) && (this._search.text = '');
(!this._search.char) && (this._search.char = e.key);
(this._search.char !== e.key) && (this._search.full = true);
this._search.text += e.key;
if (this._search.index===undefined) {
this._search.index = this.$items.index(this.$items.filter(':focus'));
}
this.selectCandidate();
}
},
selectCandidate: function() {
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var index = (this._search.index && this._search.index != -1) ? this._search.index : 0,
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re = new RegExp('^' + ((this._search.full) ? this._search.text : this._search.char), 'i'),
itemCandidate, idxCandidate;
for (var i=0; i<this.items.length; i++) {
var item = this.items[i];
if (re.test(item.caption)) {
if (!itemCandidate) {
itemCandidate = item;
idxCandidate = i;
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if(!re.test(this.items[index].caption))
break;
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}
if (this._search.full && i==index || i>index) {
itemCandidate = item;
idxCandidate = i;
break;
}
}
}
if (itemCandidate) {
this._search.index = idxCandidate;
var item = itemCandidate.el;
if (this.scroller) {
this.scroller.update({alwaysVisibleY: this.scrollAlwaysVisible});
var itemTop = item.position().top,
itemHeight = item.outerHeight(),
listHeight = this.menuRoot.outerHeight();
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if (itemTop < 0 || itemTop + itemHeight > listHeight) {
var height = this.menuRoot.scrollTop() + itemTop;
height = (Math.floor(height/itemHeight) * itemHeight);
this.menuRoot.scrollTop(height);
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}
}
item.focus();
}
},
setOffset: function(offsetX, offsetY) {
this.offset[0] = _.isUndefined(offsetX) ? this.offset[0] : offsetX;
this.offset[1] = _.isUndefined(offsetY) ? this.offset[1] : offsetY;
this.alignPosition();
},
getOffset: function() {
return this.offset;
},
alignPosition: function(fixedAlign, fixedOffset) {
var menuRoot = this.menuRoot,
menuParent = this.menuAlignEl || menuRoot.parent(),
m = this.menuAlign.match(/^([a-z]+)-([a-z]+)/),
offset = menuParent.offset(),
docW = Common.Utils.innerWidth(),
docH = Common.Utils.innerHeight() - 10, // Yep, it's magic number
menuW = menuRoot.outerWidth(),
menuH = menuRoot.outerHeight(),
parentW = menuParent.outerWidth(),
parentH = menuParent.outerHeight();
var posMenu = {
'tl': [0, 0],
'bl': [0, menuH],
'tr': [menuW, 0],
'br': [menuW, menuH]
};
var posParent = {
'tl': [0, 0],
'tr': [parentW, 0],
'bl': [0, parentH],
'br': [parentW, parentH]
};
var left = offset.left - posMenu[m[1]][0] + posParent[m[2]][0] + this.offset[0];
var top = offset.top - posMenu[m[1]][1] + posParent[m[2]][1] + this.offset[1];
if (left + menuW > docW)
if (menuParent.is('li.dropdown-submenu')) {
left = offset.left - menuW + 2;
} else {
left = docW - menuW;
}
if (this.options.restoreHeight) {
if (typeof (this.options.restoreHeight) == "number") {
if (top + menuH > docH) {
menuRoot.css('max-height', (docH - top) + 'px');
(!this.scroller) && (this.scroller = new Common.UI.Scroller({
el: this.$el.find('.dropdown-menu '),
minScrollbarLength: 30,
suppressScrollX: true,
alwaysVisibleY: this.scrollAlwaysVisible
}));
} else if ( top + menuH < docH && menuRoot.height() < this.options.restoreHeight) {
menuRoot.css('max-height', (Math.min(docH - top, this.options.restoreHeight)) + 'px');
}
}
} else {
if (top + menuH > docH) {
if (fixedAlign && typeof fixedAlign == 'string') { // how to align if menu height > window height
m = fixedAlign.match(/^([a-z]+)-([a-z]+)/);
top = offset.top - posMenu[m[1]][1] + posParent[m[2]][1] + this.offset[1] + (fixedOffset || 0);
} else
top = docH - menuH;
}
if (top < 0)
top = 0;
}
if (this.options.additionalAlign)
this.options.additionalAlign.call(this, menuRoot, left, top);
else
menuRoot.css({left: Math.ceil(left), top: Math.ceil(top)});
},
clearAll: function() {
this.cmpEl && this.cmpEl.find('li > a.checked').removeClass('checked');
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_.each(this.items, function(item){
item.checked = false;
});
}
});
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});