Module: Ext::Helper

Defined in:
lib/ext/helper.rb

Instance Method Summary collapse

Instance Method Details

#ext_css_hack ⇒ Object 



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# File 'lib/ext/helper.rb', line 40

def ext_css_hack
  <<-CSS
    <style type="text/css">
      .x-grid-dirty-cell {
        background-color: pink;
      }
    </style>
  CSS
end

#ext_grid(options = {}) ⇒ Object 



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# File 'lib/ext/helper.rb', line 50

def ext_grid(options = {})
  options = {
    :id    => "item-grid",
    :style => "border:1px solid #99bbe8;overflow: hidden; height: 280px;",
  }.merge(options)
  content_tag :div, '', options
end

#ext_include ⇒ Object 



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# File 'lib/ext/helper.rb', line 15

def ext_include
  array = []
  array << stylesheet_link_tag("#{ext_top}resources/css/ext-all")
  array << javascript_include_tag("#{ext_top}yui-utilities")
  array << javascript_include_tag("#{ext_top}ext-yui-adapter")

  if RAILS_ENV == 'development'
    array << javascript_include_tag("#{ext_top}ext-all-debug")
  else
    array << javascript_include_tag("#{ext_top}ext-all")
  end

  array << ext_js_hack
  array << ext_css_hack
  array.join("\n")
end

#ext_js_hack ⇒ Object 



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# File 'lib/ext/helper.rb', line 32

def ext_js_hack
  url = image_path "#{ext_top}resources/images/default/tree/s.gif"
  javascript_tag <<-SCRIPT
    Ext.BLANK_IMAGE_URL = '#{ escape_javascript(url) }';
    #{Ext.patch}
  SCRIPT
end

#ext_paginate(*args) ⇒ Object 



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# File 'lib/ext/helper.rb', line 126

def ext_paginate(*args)
  options = args.optionize(:class, :limit, :url)
  klass   = options[:class]
  plural  = klass.name.demodulize.pluralize
  limit   = options[:limit]
  url     = options[:url] || url_for(:action=>"list")
  ds      = options[:ds] || options[:ds_class].new(:class=>options[:class], :url=>url)
  cm      = options[:cm] || options[:cm_class].new(:class=>options[:class])
  grid    = options[:grid_class].to_json

  <<-EOF
<script type="text/javascript">
<!--

Ext.onReady(function(){
  var ds = #{ ds };
  var cm = #{ cm };
  ds.setDefaultSort('#{klass.primary_key}', 'asc');
  cm.defaultSortable = true;
  #{ options[:raw] }

  var grid = new #{grid}('item-grid', {ds: ds, cm: cm});

  // render it
  grid.render();

  var gridFoot = grid.getView().getFooterPanel(true);

  // add a paging toolbar to the grid's footer
  var paging = new Ext.PagingToolbar(gridFoot, ds, {
      pageSize: #{ limit },
      displayInfo: true,
      displayMsg: 'Displaying #{plural} {0} - {1} of {2}',
      emptyMsg: "No #{plural} to display"
  });

  // trigger the data store load
  ds.load({params:{start:0, limit:#{ limit }}});

});

// -->
</script>

  EOF
end

#ext_top ⇒ Object 



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# File 'lib/ext/helper.rb', line 2

def ext_top
  Ext.url_prefix
end

#ext_tree(options = {}) ⇒ Object 



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# File 'lib/ext/helper.rb', line 77

def ext_tree(options = {})
  id    = options[:id]   || 'tree-div'
  url   = options[:url]  || url_for
  root  = options[:root] || "Top"
  style = ext_tree_default_style.merge(options[:style] || {})

  script = <<-EOF
<script type="text/javascript">
<!--

Ext.onReady(function(){
  // shorthand
  var Tree = Ext.tree;

  var tree = new Tree.TreePanel('#{id}', {
      animate:true,
      loader: new Tree.TreeLoader({dataUrl:'#{url}'}),
      enableDD:true,
      containerScroll: true
  });

  // add a tree sorter in folder mode
//    new Tree.TreeSorter(tree, {folderSort:true});

  // set the root node
  var root = new Tree.AsyncTreeNode({
      text: '#{root}',
      draggable:false,
      id:'root'
  });
  tree.setRootNode(root);

  // render the tree
  tree.render();
  root.expand();

#{ext_tree_on_move if options[:move]}
});

// -->
</script>
  EOF

  style = style.map{|key,val| "#{key}:#{val}"}.join(';')
  div   = content_tag(:div, '', :id=>id, :style=>style)

  return script + div
end

#ext_tree_default_style ⇒ Object 



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# File 'lib/ext/helper.rb', line 6

def ext_tree_default_style
  {
    :overflow => :auto,
    :height   => "300px",
    :width    => "250px",
    :border   => "1px solid #c3daf9;",
  }.with_indifferent_access
end

#ext_tree_on_move ⇒ Object 



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# File 'lib/ext/helper.rb', line 59

def ext_tree_on_move
  <<-EOF
  tree.addListener('move',
    function(tree, node, oldParent, newParent, index, refNode){

      var loader = tree.loader;
      var buf    = [loader.getParams(node)];

      buf.push("&parent=", encodeURIComponent(newParent.id));
      buf.push("&index=", encodeURIComponent(index));
      var params = buf.join("");

      loader.transId = Ext.lib.Ajax.request(loader.requestMethod, loader.dataUrl, null, params);
    }
  );
  EOF
end