Class: Netzke::BorderLayoutPanel

Inherits:
Base
  • Object
show all
Defined in:
lib/netzke/border_layout_panel.rb

Overview

Represents the Ext.Panel with layout ‘border’. May serve as parent class for compound widgets.

Features:

  • Responds to region resizing, storing the sizes in persistent config

Future features:

  • Stores expand/collapse state in the persistent config

Non-functional features:

  • (JavaScript) Creates convinient methods to access aggregatees inside the regions, like

getCenterWidget(), getWestWidget(), etc

Configuration:

:regions - a hash in form:

{:center => {<netzke widget config>}, :east => {<another netzke widget config>}, ...}

:regions => :center/:west/:etc => :region_config - configuration options for Ext.layout.BorderLayout.SplitRegion.

Example configuration:

:regions => {
  :center => {:widget_class_name => "Panel", :ext_config => {:html => "A panel"}}, 
  :west => {
    :widget_class_name => "GridPanel", 
    :data_class_name => "User", 
    :region_config => {
      :width => 100,
      :split => true
    }
  }
}

Direct Known Subclasses

TableEditor

Constant Summary collapse

REGIONS = 
%w(center west east south north).map(&:to_sym)

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.js_extend_properties ⇒ Object

JavaScript part



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# File 'lib/netzke/border_layout_panel.rb', line 39

def self.js_extend_properties
  {
    :layout => 'border',
    
    :init_component => <<-END_OF_JAVASCRIPT.l,
    
    :get_region_widget => <<-END_OF_JAVASCRIPT.l,
    
    :set_resize_events => <<-END_OF_JAVASCRIPT.l,
    function(){
      this.items.each(function(item, index, length){
        if (!item.oldSize) item.oldSize = item.getSize();
        if (item.region == 'east' || item.region == 'west') item.on('resize', function(panel, w, h){
          if (panel.oldSize.width != w) {
            this.resizeRegion({region_name: panel.region, new_width:w});
            panel.oldSize.width = w;
          }
          return true;
        }, this);
        else if (item.region == 'south' || item.region == 'north') item.on('resize', function(panel, w, h){
          if (panel.oldSize.height != h) {
            this.resizeRegion({region_name: panel.region, new_height:h});
            panel.oldSize.height = h;
          }
          return true;
        }, this);
      }, this);
    }
  END_OF_JAVASCRIPT
}
end

Instance Method Details

#initial_aggregatees ⇒ Object 



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# File 'lib/netzke/border_layout_panel.rb', line 101

def initial_aggregatees
  config[:regions] || {}
end

#js_config ⇒ Object 



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# File 'lib/netzke/border_layout_panel.rb', line 109

def js_config
  regions = {}
  REGIONS.each do |r|
    if region_aggr = aggregatees[r]
      regions.merge!(r => region_aggr[:region_config] || {})
    end
  end
  super.merge(:regions => regions)
end

#region_aggregatees ⇒ Object 



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# File 'lib/netzke/border_layout_panel.rb', line 105

def region_aggregatees
  aggregatees.reject{ |k,v| !REGIONS.include?(k) }
end

#resize_region(params) ⇒ Object 



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# File 'lib/netzke/border_layout_panel.rb', line 121

def resize_region(params)
  persistent_config["regions__#{params["region_name"]}__region_config__width"] = params["new_width"].to_i if params["new_width"]
  persistent_config["regions__#{params["region_name"]}__region_config__height"] = params["new_height"].to_i if params["new_height"]
  {}
end