为extjs的TabPanel 添加右键关闭效果(修改一个bug)
来源:互联网 发布:mac笔记本右键怎么按 编辑:程序博客网 时间:2024/04/29 09:50
原地址:http://my.oschina.net/zhongwenhao/blog/333134?fromerr=nmntbKsp
效果图如下:
因为我用的是extjs-4.2.1.883 这个版本,右键菜单的相关源代码需要在发布包下的源代码(examples\ux)下去查找(Ext.ux.BoxReorderer,Ext.ux.TabCloseMenu,Ext.ux.TabReorderer,Ext.ux.TabScrollerMenu)
在首页面配置路径:
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Ext.Loader.setConfig({
enabled:
true
,
paths: {
'Ext.app'
:
'../../extjs4.2/examples/portal/classes'
,
'Ext.ux'
:
'../../extjs4.2/examples/ux'
}
});
添加代码如下:
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{
itemId:
'contentTab'
,
xtype:
'tabpanel'
,
region:
'center'
,
margin:
'2 2 2 0'
,
layout:
'border'
,
items: [{
xtype:
'main'
,
title:
'首页'
,
region:
'center'
}],
plugins:
new
Ext.create(
'Ext.ux.TabCloseMenu'
,{
closeTabText:
'关闭面板'
,
closeOthersTabsText:
'关闭其他'
,
closeAllTabsText:
'关闭所有'
})
}
右键菜单效果有了,可是我发现只有关闭所有这个菜单项有效,后面debug了下,发现不能保存当前选中标签页的item值,修改下Ext.ux.TabCloseMenu源代码就可以了(添加了个ctab变量来保存item变量的值)
修改代码共三处:84行; 155行; 168行
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/**
* Plugin for adding a close context menu to tabs. Note that the menu respects
* the closable configuration on the tab. As such, commands like remove others
* and remove all will not remove items that are not closable.
*/
Ext.define(
'Ext.ux.TabCloseMenu'
, {
alias:
'plugin.tabclosemenu'
,
mixins: {
observable:
'Ext.util.Observable'
},
/**
* @cfg {String} closeTabText
* The text for closing the current tab.
*/
closeTabText:
'Close Tab'
,
/**
* @cfg {Boolean} showCloseOthers
* Indicates whether to show the 'Close Others' option.
*/
showCloseOthers:
true
,
/**
* @cfg {String} closeOthersTabsText
* The text for closing all tabs except the current one.
*/
closeOthersTabsText:
'Close Other Tabs'
,
/**
* @cfg {Boolean} showCloseAll
* Indicates whether to show the 'Close All' option.
*/
showCloseAll:
true
,
/**
* @cfg {String} closeAllTabsText
* The text for closing all tabs.
*/
closeAllTabsText:
'Close All Tabs'
,
/**
* @cfg {Array} extraItemsHead
* An array of additional context menu items to add to the front of the context menu.
*/
extraItemsHead:
null
,
/**
* @cfg {Array} extraItemsTail
* An array of additional context menu items to add to the end of the context menu.
*/
extraItemsTail:
null
,
//public
constructor:
function
(config) {
this
.addEvents(
'aftermenu'
,
'beforemenu'
);
this
.mixins.observable.constructor.call(
this
, config);
},
init :
function
(tabpanel){
this
.tabPanel = tabpanel;
this
.tabBar = tabpanel.down(
"tabbar"
);
this
.mon(
this
.tabPanel, {
scope:
this
,
afterlayout:
this
.onAfterLayout,
single:
true
});
},
onAfterLayout:
function
() {
this
.mon(
this
.tabBar.el, {
scope:
this
,
contextmenu:
this
.onContextMenu,
delegate:
'.x-tab'
});
},
onBeforeDestroy :
function
(){
Ext.destroy(
this
.menu);
this
.callParent(arguments);
},
// private
onContextMenu :
function
(event, target){
var
me =
this
,
menu = me.createMenu(),
disableAll =
true
,
disableOthers =
true
,
tab = me.tabBar.getChildByElement(target),
index = me.tabBar.items.indexOf(tab);
me.item = me.tabPanel.getComponent(index);
//添加了个ctab变量来保存item变量的值
me.ctab=me.item;
menu.child(
'*[text="'
+ me.closeTabText +
'"]'
).setDisabled(!me.item.closable);
if
(me.showCloseAll || me.showCloseOthers) {
me.tabPanel.items.each(
function
(item) {
if
(item.closable) {
disableAll =
false
;
if
(item != me.item) {
disableOthers =
false
;
return
false
;
}
}
return
true
;
});
if
(me.showCloseAll) {
menu.child(
'*[text="'
+ me.closeAllTabsText +
'"]'
).setDisabled(disableAll);
}
if
(me.showCloseOthers) {
menu.child(
'*[text="'
+ me.closeOthersTabsText +
'"]'
).setDisabled(disableOthers);
}
}
event.preventDefault();
me.fireEvent(
'beforemenu'
, menu, me.item, me);
menu.showAt(event.getXY());
},
createMenu :
function
() {
var
me =
this
;
if
(!me.menu) {
var
items = [{
text: me.closeTabText,
scope: me,
handler: me.onClose
}];
if
(me.showCloseAll || me.showCloseOthers) {
items.push(
'-'
);
}
if
(me.showCloseOthers) {
items.push({
text: me.closeOthersTabsText,
scope: me,
handler: me.onCloseOthers
});
}
if
(me.showCloseAll) {
items.push({
text: me.closeAllTabsText,
scope: me,
handler: me.onCloseAll
});
}
if
(me.extraItemsHead) {
items = me.extraItemsHead.concat(items);
}
if
(me.extraItemsTail) {
items = items.concat(me.extraItemsTail);
}
me.menu = Ext.create(
'Ext.menu.Menu'
, {
items: items,
listeners: {
hide: me.onHideMenu,
scope: me
}
});
}
return
me.menu;
},
onHideMenu:
function
() {
var
me =
this
;
me.item =
null
;
me.fireEvent(
'aftermenu'
, me.menu, me);
},
onClose :
function
(){
// this.tabPanel.remove(this.item);
this
.tabPanel.remove(
this
.ctab);
},
onCloseOthers :
function
(){
this
.doClose(
true
);
},
onCloseAll :
function
(){
this
.doClose(
false
);
},
doClose :
function
(excludeActive){
var
items = [];
this
.tabPanel.items.each(
function
(item){
if
(item.closable){
/*if(!excludeActive || item != this.item){
items.push(item);
}*/
if
(!excludeActive || item !=
this
.ctab){
items.push(item);
}
}
},
this
);
Ext.each(items,
function
(item){
this
.tabPanel.remove(item);
},
this
);
}
});
0 0
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