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Mam panel z dwoma toolbars. Jak mogę zaimplementować niestandardową klasę do używania jako overflowHandler, która przeniesie komponenty do drugiego paska narzędzi na przepełnieniu pierwszego paska narzędzi?Implementacja niestandardowego przepełnienia pamięci w ExtJS 4
Próbowałem użyć kodu Ext.layout.container.boxOverflow.Menu, ale mój drugi pasek narzędzi po prostu się ukrywa.
Oto mój kod, który został wymieszany z toolbar overflow przykładem z dystrybucji ExtJS 4.
Ext.require(['Ext.window.Window', 'Ext.toolbar.Toolbar', 'Ext.menu.ColorPicker', 'Ext.form.field.Date']);
Ext.onReady(function(){
/**
* Override for implementing tbar2
*/
Ext.override(Ext.panel.Panel, {
bridgeToolbars : function() {
var toolbar;
this.callParent(arguments);
if (this.tbar2) {
if (Ext.isArray(this.tbar2)) {
toolbar = {
xtype : 'toolbar',
items : this.tbar2
};
}
else if (!toolbar.xtype) {
toolbar.xtype = 'toolbar';
}
toolbar.dock = 'top';
toolbar.isTbar2 = true;
this.dockedItems = this.dockedItems.concat(toolbar);
this.tbar2 = null;
}
},
onRender : function() {
this.callParent(arguments);
var topBars = this.getDockedItems('toolbar[dock="top"]'),
i,
len;
for (i = 0, len = topBars.length; i < len; i++) {
if (topBars[i].isTbar2) {
this.tbar2 = topBars[i];
break;
}
}
},
/**
* Lazy creates new toolbar and returns it
* @param {Ext.panel.Panel} panel
* @param {String} position
* @return {Ext.toolbar.Toolbar}
*/
getDynamicTBar : function (position) {
var panel = this,
params,
tb;
position = position || 'top';
if (position === 'tbar2') {
tb = panel.tbar2;
params = {dock : 'top', isTbar2 : true};
}
else {
tb = panel.getDockedItems('toolbar[dock="' + position + '"]');
params = {dock : position};
if (tb.length > 0) {
tb = tb[0];
}
}
if (!tb) {
console.log('created tb at ' + position);
tb = Ext.create('Ext.toolbar.Toolbar', params);
panel.addDocked(tb);
}
return tb;
}
});
Ext.define('Ext.layout.container.boxOverflow.TBar2', {
extend : 'Ext.layout.container.boxOverflow.None',
constructor : function() {
this.tbar2Items = [];
return this.callParent(arguments);
},
beginLayout : function (ownerContext) {
this.callParent(arguments);
this.clearOverflow(ownerContext);
},
beginLayoutCycle : function (ownerContext, firstCycle) {
this.callParent(arguments);
if (!firstCycle) {
this.clearOverflow(ownerContext);
this.layout.cacheChildItems(ownerContext);
}
},
getOverflowCls : function() {
return Ext.baseCSSPrefix + this.layout.direction + '-box-overflow-body';
},
_asLayoutRoot : { isRoot : true },
clearOverflow : function() {
if (this.tbar2) {
this.tbar2.suspendLayouts();
this.tbar2.hide();
this.tbar2.resumeLayouts(this._asLayoutRoot);
}
this.tbar2Items.length = 0;
},
handleOverflow : function (ownerContext) {
var me = this,
layout = me.layout,
owner = layout.owner,
names = layout.getNames(),
startProp = names.x,
sizeProp = names.width,
plan = ownerContext.state.boxPlan,
available = plan.targetSize[sizeProp],
childItems = ownerContext.childItems,
len = childItems.length,
childContext,
comp, i, props,
tbarOwner = owner.ownerCt;
owner.suspendLayouts();
// Hide all items which are off the end, and store them to allow them to be restored
// before each layout operation.
me.tbar2Items.length = 0;
for (i = 0; i < len; i++) {
childContext = childItems[i];
props = childContext.props;
if (props[startProp] + props[sizeProp] > available) {
comp = childContext.target;
me.tbar2Items.push(comp);
owner.remove(comp, false);
}
}
owner.resumeLayouts();
if (!me.tbar2 && (tbarOwner instanceof Ext.panel.Panel)) {
me.tbar2 = tbarOwner.getDynamicTBar('tbar2');
}
me.tbar2.suspendLayouts();
me.tbar2.show();
Ext.each(me.tbar2Items, function(item, index) {
me.tbar2.add(item);
});
me.tbar2.resumeLayouts(me._asLayoutRoot);
}
});
var handleAction = function(action){
Ext.example.msg('<b>Action</b>', 'You clicked "' + action + '"');
};
var colorMenu = Ext.create('Ext.menu.ColorPicker', {
handler: function(cm, color){
Ext.example.msg('Color Selected', '<span style="color:#' + color + ';">You choose {0}.</span>', color);
}
});
var showDate = function(d, value) {
Ext.example.msg('<b>Action date</b>', 'You picked ' + Ext.Date.format(value, d.format));
};
var fromPicker = false;
Ext.create('Ext.window.Window', {
title: 'Standard',
closable: false,
height:250,
width: 500,
bodyStyle: 'padding:10px',
contentEl: 'content',
autoScroll: true,
tbar: Ext.create('Ext.toolbar.Toolbar', {
layout: {
overflowHandler: 'TBar2'
},
items: [{
xtype:'splitbutton',
text: 'Menu Button',
iconCls: 'add16',
handler: Ext.Function.pass(handleAction, 'Menu Button'),
menu: [{text: 'Menu Item 1', handler: Ext.Function.pass(handleAction, 'Menu Item 1')}]
},'-',{
xtype:'splitbutton',
text: 'Cut',
iconCls: 'add16',
handler: Ext.Function.pass(handleAction, 'Cut'),
menu: [{text: 'Cut menu', handler: Ext.Function.pass(handleAction, 'Cut menu')}]
},{
text: 'Copy',
iconCls: 'add16',
handler: Ext.Function.pass(handleAction, 'Copy')
},{
text: 'Paste',
iconCls: 'add16',
menu: [{text: 'Paste menu', handler: Ext.Function.pass(handleAction, 'Paste menu')}]
},'-',{
text: 'Format',
iconCls: 'add16',
handler: Ext.Function.pass(handleAction, 'Format')
},'->', {
fieldLabel: 'Action',
labelWidth: 70,
width: 180,
xtype: 'datefield',
labelSeparator: '',
enableKeyEvents: true,
listeners: {
expand: function(){
fromPicker = true;
},
collapse: function(){
fromPicker = false;
},
change: function(d, newVal, oldVal) {
if (fromPicker || !d.isVisible()) {
showDate(d, newVal);
}
},
keypress: {
buffer: 500,
fn: function(field){
var value = field.getValue();
if (value !== null && field.isValid()) {
showDate(field, value);
}
}
}
}
}, {
text: 'Sell',
iconCls: 'money-down',
enableToggle: true,
toggleHandler: function(button, pressed) {
Ext.example.msg('<b>Action</b>', 'Right ToggleButton ' + (pressed ? 'Buy' : 'Sell'));
button.setText(pressed ? 'Buy' : 'Sell')
button.setIconCls(pressed ? 'money-up' : 'money-down')
}
}, {
text: 'Choose a Color',
menu: colorMenu // <-- submenu by reference
}]
})
}).show();
});
co dokładna wersja R u użyciu? – dbrin
Moja wersja ExtJS to 4.1.2 –