Module: IronNails::Controller::ViewOperations

Included in:
Base
Defined in:
lib/ironnails/controller/view_operations.rb

Overview

Encapsulates all the operations that have to do with the view model in controllers.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#nails_engine ⇒ Object

Returns the value of attribute nails_engine.



9
10
11
 
# File 'lib/ironnails/controller/view_operations.rb', line 9

def nails_engine
  @nails_engine
end

Instance Method Details

#add_action(name, options, &b) ⇒ Object 



56
57
58
59
60
 
# File 'lib/ironnails/controller/view_operations.rb', line 56

def add_action(name, options, &b)
  options[:action] = b if block_given?
  cmd_def = { "#{name}".to_sym => options }
  nails_engine.add_command_to_view cmd_def
end

#copy_vars ⇒ Object

copies the instance variables from the class object to this instance



92
93
94
 
# File 'lib/ironnails/controller/view_operations.rb', line 92

def copy_vars
  self.class.instance_variables.each { |var| instance_variable_copy var }
end

#init_view_manager ⇒ Object

initializes a new instance of the ViewManager



27
28
29
30
31
32
33
34
 
# File 'lib/ironnails/controller/view_operations.rb', line 27

def init_view_manager

  nails_engine.add_observer :refreshing_view, controller_name do
    setup_for_showing_view
  end
  copy_vars
  #end
end

#instance_variable_copy(var) ⇒ Object

copies an instance variable from the class object to this instance



84
85
86
87
88
89
 
# File 'lib/ironnails/controller/view_operations.rb', line 84

def instance_variable_copy(var)
  log_on_error do
    val = self.class.instance_variable_get var
    instance_variable_set var, val
  end
end

#refresh_instance_variables ⇒ Object 



73
74
75
76
77
78
79
80
81
 
# File 'lib/ironnails/controller/view_operations.rb', line 73

def refresh_instance_variables
  objects.each do |k, v|
    instance_variable_set "@#{k}", v
  end
  view_properties.each do |k, v|
    val = on_view v[:view], :from => v[:element], :get => v[:property]
    instance_variable_set "@#{k}", val
  end
end

#refresh_objects ⇒ Object 



62
63
64
65
66
67
68
69
70
71
 
# File 'lib/ironnails/controller/view_operations.rb', line 62

def refresh_objects
  instance_variables.each do |var|
    sym = var.gsub(/@/, "").to_sym
    if objects.has_key?(sym)
      val = instance_variable_get(var)
      objects[sym] = val
    end
  end
  objects
end

#setup_for_showing_view ⇒ Object

setup the viewmodel for the current objects and command defintions



42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/ironnails/controller/view_operations.rb', line 42

def setup_for_showing_view
  #log_on_error do
  objs = ModelCollection.generate_for refresh_objects
  cmds = @command_builder.generate_for commands
  cmds.each do |cmd|
    cmd.add_observer(:reading_input) do
      synchronise_with_view_model
    end
  end
  nails_engine.initialize_with cmds, objs
  logger.debug "initialized the view manager", IRONNAILS_FRAMEWORKNAME
  #end
end

#synchronise_with_view_model ⇒ Object 



36
37
38
39
 
# File 'lib/ironnails/controller/view_operations.rb', line 36

def synchronise_with_view_model
  nails_engine.synchronise_to_controller self
  refresh_instance_variables
end

#view_model_name ⇒ Object

gets the name of the view model class



17
18
19
 
# File 'lib/ironnails/controller/view_operations.rb', line 17

def view_model_name
  "#{view_name}_view_model"
end

#view_name ⇒ Object

gets the view name for the class that includes this module



12
13
14
 
# File 'lib/ironnails/controller/view_operations.rb', line 12

def view_name
  self.class.demodulize.underscore.gsub(/_controller$/, '')
end