Module: Nitro::ScriptGenerator

Includes:
JavascriptUtils
Defined in:
lib/nitro/helper/javascript.rb,
lib/nitro/helper/javascript/prototype.rb,
lib/nitro/helper/javascript/scriptaculous.rb

Overview

Add Scriptaculous methods to the ScriptGenerator.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#buffer ⇒ Object

Returns the value of attribute buffer.



68
69
70
 
# File 'lib/nitro/helper/javascript.rb', line 68

def buffer
  @buffer
end

Instance Method Details

#ajax_update(id, options = {}) ⇒ Object

Perform an ajax, async update.



44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
 
# File 'lib/nitro/helper/javascript/prototype.rb', line 44

def ajax_update(id, options = {})
  code = %~
    new Ajax.Updater(
      { success: '#{id}' },
      '#{options[:action] || options[:url]}', 
      {
        method: '#{options.fetch(:method, :post)}',
        parameters: #{options[:params] || options[:parameters]}, 
  ~

  if before = options[:before]
    if before.is_a? Proc
      old_buffer = @buffer
      @buffer = ''
      before.call
      before = @buffer
      @buffer = old_buffer + @buffer
    end
    code << %~
      onLoading: function(request) {
        #{before}
      },
    ~
  end

  if success = options[:success]
    if success.is_a? Proc      
      old_buffer = @buffer
      @buffer = ''
      success.call
      success = @buffer
      @buffer = old_buffer
    end
    code << %~
      onComplete: function(request) {
        #{success}
      }        
    ~
  end

  code << %~
      }
    );
  ~
  
  js(code)
end

#alert(text) ⇒ Object

Present an alert dialog box.



72
73
74
 
# File 'lib/nitro/helper/javascript.rb', line 72

def alert(text)
  js "alert('#{text}');"
end

#hide(id) ⇒ Object

Hide a DOM element.



26
27
28
 
# File 'lib/nitro/helper/javascript/prototype.rb', line 26

def hide(id)
  js "$('#{id}').style.display = 'none';"
end

#insert_html(id, html, options = {}) ⇒ Object

html = A string or a symbol to an action for rendering. – TODO: resolve html. ++



15
16
17
18
 
# File 'lib/nitro/helper/javascript/prototype.rb', line 15

def insert_html(id, html, options = {})
  position = options.fetch(:where, :before)
  js "new Insertion.#{position.to_s.camelize}('#{id}', '#{html}');"
end

#replace_html(id, html, options = {}) ⇒ Object 



20
21
22
 
# File 'lib/nitro/helper/javascript/prototype.rb', line 20

def replace_html(id, html, options = {})
  js "Element.update('#{id}', '#{html}');"
end

#show(id) ⇒ Object

Show a DOM element.



32
33
34
 
# File 'lib/nitro/helper/javascript/prototype.rb', line 32

def show(id)
  js "$('#{id}').style.display = 'block';"
end

#toggle(id) ⇒ Object

Toggle a DOM element.



38
39
40
 
# File 'lib/nitro/helper/javascript/prototype.rb', line 38

def toggle(id)
  js "Element.toggle('#{id}');"
end

#visual_effect(name, id = false, options = {}) ⇒ Object Also known as: effect 



7
8
9
10
11
 
# File 'lib/nitro/helper/javascript/scriptaculous.rb', line 7

def visual_effect(name, id = false, options = {})
  element = id ? "'#{id}'" : "element"
  options[:queue] = "'#{options[:queue]}'" if options[:queue]
  js "new Effect.#{name.to_s.camelize}(#{element}, #{hash_to_js(options)});"
end