2012-09-29 12 views
6

में कस्टम ओवरफ्लो हैंडलर कार्यान्वयन मेरे पास दो toolbars के साथ पैनल है। मैं overflowHandler के रूप में उपयोग करने के लिए कस्टम क्लास को कैसे कार्यान्वित कर सकता हूं, जो घटक को पहले टूलबार के ओवरफ़्लो पर दूसरी टूलबार में ले जायेगा?एक्स्टजेस 4

मैंने Ext.layout.container.boxOverflow.Menu का कोड उपयोग करने का प्रयास किया, लेकिन मेरा दूसरा टूलबार बस छुपाता है।

यहां मेरा कोड है, जिसे toolbar overflowExtJS 4 से वितरित किया गया था।

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(); 
}); 
+0

क्या सही संस्करण आर यू उपयोग करने के बजाय Ext. का उपयोग करना चाहिए? – dbrin

+0

ExtJS का मेरा संस्करण 4.1.2 है –

उत्तर

3

हम जो दूसरे उपकरण पट्टी जोड़ सकते हैं और पहले टूलबार से घटकों लपेटता होगा दूसरा जब उन्हें प्रदर्शित नहीं हो सकता है क्योंकि एक टूलबार कंटेनर के लिए पर्याप्त चौड़ाई नहीं है वहाँ उपकरण पट्टी लेआउट, के लिए overflowHandler को लागू करने की जरूरत है। सबसे पहले, हम Ext.panel.Panel ओवरराइड करने के लिए की जरूरत है:

Ext4.override(Ext4.panel.Panel, { 
    bridgeToolbars: function() { 
     var toolbar; 
     this.callParent(arguments); 
     if (this.tbar2) { 
      if (Ext4.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; 
      } 
     } 
    }, 
    /** 
    * Creates, if not exists, and returns toolbar at passed position 
    * @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, 
       layout: { 
        overflowHandler: 'Scroller' 
       } 
      }; 
     } else { 
      tb = panel.getDockedItems('toolbar[dock="' + position + '"]'); 
      params = { 
       dock: position 
      }; 
      if (tb.length > 0) { 
       tb = tb[0]; 
      } 
     } 
     if (!tb) { 
      tb = Ext4.create('Ext4.toolbar.Toolbar', params); 
      panel.addDocked(tb); 
      if (position === 'tbar2') { 
       panel.tbar2 = tb; 
      } 
     } 
     return tb; 
    } 
}); 

इसके बाद, हम वर्ग Ext4.layout.container.boxOverflow.TBar2 बनाने की जरूरत है (यह इतने लंबे समय के नाम है क्योंकि ExtJS खोज handleOverflow (जो उदाहरण है स्ट्रिंग का) हार्डकोडेड Ext4.layout.container.box ओवरफ्लो नेमस्पेस में)।

/** 
* @class Ext4.layout.container.boxOverflow.TBar2 
* Class for using as overflowHandler 
* @extends Ext.layout.container.boxOverflow.None 
*/ 
Ext4.define('Ext4.layout.container.boxOverflow.TBar2', { 
    extend: 'Ext4.layout.container.boxOverflow.None', 

    /** 
    * @private 
    * @property {Boolean} initialized 
    */ 
    initialized: false, 

    constructor: function() { 
     /** 
     * @private 
     * @property {Array} tbar2Items 
     * List of moved components 
     */ 
     this.tbar2Items = []; 
     return this.callParent(arguments); 
    }, 

    beginLayout: function (ownerContext) { 
     if (!this.initialized) { 
      this.layout.owner.ownerCt.on('afterlayout', this.createTBar2, this); 
      this.initialized = true; 
     } 
     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 Ext4.baseCSSPrefix + this.layout.direction + '-box-overflow-body'; 
    }, 

    /** 
    * @private 
    * @property {Object} _asLayoutRoot 
    */ 
    _asLayoutRoot: { 
     isRoot: true 
    }, 

    clearOverflow: function() { 
     // If afterlayout is not processing and tbar2 already created, 
     // we can to move components from tbar2 to first toolbar, because now 
     // there isn't any overflow 
     if (!this.processing && this.tbar2) { 
      this.tbar2.items.each(function (item) { 
       this.tbar1.add(item); 
       // change ui from saved property, or CSS will be incorrect 
       item.ui = item.origUI; 
      }, this); 
      this.tbar2.removeAll(false); 
      this.tbar2.hide(); 
     } 
     this.tbar2Items.length = 0; 
    }, 

    /** 
    * @private 
    * Creates tbar2 and does other routines 
    */ 
    createTBar2: function() { 
     // if afterlayout event is still processing, 
     // or we don't need to handle toolbar overflow, just return from function 
     if (this.processing || !this.doTbar2) { 
      return; 
     } 
     this.processing = true; 
     this.doTbar2 = false; 
     var me = this, 
      ownerContext = this.mOwnerContext, 
      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; 

     me.tbar1 = owner; 
     // save components which will be moved 
     owner.suspendLayouts(); 
     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); 
       // save original ui property 
       comp.origUI = comp.ui; 
       owner.remove(comp, false); 
      } 
     } 
     owner.resumeLayouts(); 

     // add tbar2 to the layout cycle (you can see very similar code in clearOverflow 
     // method of Ext.layout.container.boxOverflow.Menu) 
     tbarOwner.suspendLayouts(); 
     me.tbar2 = tbarOwner.getDynamicTBar('tbar2'); 
     me.tbar2.show(); 
     // moving components 
     Ext4.each(me.tbar2Items, function (item, index) { 
      me.tbar2.insert(index, item); 
      item.ui = item.origUI; 
     }); 
     tbarOwner.resumeLayouts(this._asLayoutRoot); 
     this.processing = false; 
    }, 

    handleOverflow: function (ownerContext) { 
     // set flag and store context for later using 
     this.doTbar2 = true; 
     this.mOwnerContext = ownerContext; 
    } 

}); 

कृपया ध्यान दें मैं उपयोग ExtJS 4 बूटस्ट्रैपिंग (क्योंकि मेरी वेब अनुप्रयोग में वहाँ ExtJD 2.3 भी है), इसलिए अपने कोड में आप शायद Ext4.