Class: MotionPrime::BaseFieldSection

Inherits:
Section
  • Object
show all
Includes:
BW::KVO, CellSectionMixin
Defined in:
motion-prime/sections/form/base_field_section.rb

Constant Summary

Constants inherited from Section

Section::DEFAULT_CONTENT_HEIGHT, Section::KEYBOARD_HEIGHT_LANDSCAPE, Section::KEYBOARD_HEIGHT_PORTRAIT

Instance Attribute Summary collapse

Attributes included from CellSectionMixin

#pending_display, #table

Attributes inherited from Section

#elements, #model, #name, #options, #screen, #section_styles

Attributes included from DrawSectionMixin

#cached_draw_image, #container_element, #container_gesture_recognizers

Instance Method Summary collapse

Methods included from CellSectionMixin

#cell_section_name, #cell_type, #container_bounds, #display, #init_container_element, #pending_display!, #render_container, #section_styles

Methods included from SectionWithContainerMixin

#container_view, #init_container_element, #load_container_with_elements

Methods inherited from Section

#add_element, after_initialize, after_render, before_initialize, before_render, bind_keyboard_close, #bind_keyboard_events, #cell, container, #container_bounds, #container_options, #create_elements, #current_input_view_height, #default_name, element, #element, #elements_options, #elements_to_draw, #elements_to_render, #has_container_bounds?, #hide, #hide_keyboard, inherited, #initialize, #keyboard_will_hide, #keyboard_will_show, #on_keyboard_hide, #on_keyboard_show, #reload, #render, #render!, #render_container, #screen?, #show, #strong_references, #view

Methods included from DelegateMixin

#clear_delegated, #delegated_by

Methods included from DrawSectionMixin

#bind_gesture_on_container_for, #clear_gesture_for_receiver, #draw_in, #prerender_elements_for_state, #prerender_enabled?

Methods included from FrameCalculatorMixin

#calculate_frome_for

Methods included from HasStyles

#prepare_gradient

Methods included from HasClassFactory

#camelize_factory, #class_factory, #low_camelize_factory

Methods included from HasNormalizer

#normalize_object, #normalize_options

Methods included from HasAuthorization

#api_client, #current_user, #reset_current_user, #user_signed_in?

Constructor Details

This class inherits a constructor from MotionPrime::Section

Instance Attribute Details

#form ⇒ Object (readonly)

Returns the value of attribute form.



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# File 'motion-prime/sections/form/base_field_section.rb', line 6

def form
  @form
end

Instance Method Details

#all_errors ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 166

def all_errors
  return [] unless observing_errors?

  observing_errors_for.errors.info.slice(*errors_observer_fields).values.flatten
end

#bind_text_input ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 130

def bind_text_input
  view(:input).on :change do |view|
    focus if options[:auto_focus]
    form.on_input_change(view(:input))
  end
end

#blur ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 110

def blur
  elements.values.each do |element|
    if element.view.is_a?(UITextField)
      element.view.resignFirstResponder && return
    end
  end
  self
rescue
  NSLog("can't blur on element #{self.class_name_without_kvo}")
end

#clear_observers ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 177

def clear_observers
  return unless observing_errors?
  # unobserve_all cause double dealloc, following code is a replacement
  unobserve observing_errors_for.errors, :info
  # TODO: clear 'on' events
end

#container_height ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 184

def container_height
  return 0 if container_options[:hidden]
  element = element(:error_message)
  error_height = element ? element.cached_content_height + 5 : 0
  super + error_height
end

#dealloc ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 70

def dealloc
  clear_observers
  super
end

#default_label_options ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 121

def default_label_options
  label_options = options[:label] || {}
  if label_options.has_key?(:text)
    label_options
  else
    {text: options[:name].to_s.titleize}.merge(label_options)
  end
end

#errors_observer_fields ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 154

def errors_observer_fields
  @errors_observer_fields ||= begin
    fields = Array.wrap(@errors_observer_options[:fields])
    fields << name if fields.empty?
    fields.uniq
  end
end

#focus(begin_editing = false) ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 79

def focus(begin_editing = false)
  # focus on text field
  elements.values.detect do |element|
    if element.view.is_a?(UITextField) || element.view.is_a?(UITextView)
      element.view.becomeFirstResponder
    end
  end if begin_editing

  # scroll to cell
  # path = form.table_view.indexPathForCell(cell)
  # form.table_view.scrollToRowAtIndexPath path,
  #   atScrollPosition: UITableViewScrollPositionTop, animated: true
  return self unless input_view = element(:input).try(:view)
  origin = input_view.frame.origin
  point = container_view.convertPoint(origin, toView: form.table_view)

  nav_bar_height = screen.navigationController ? screen.navigationController.navigationBar.frame.size.height : 0
  nav_bar_height += 20 # status bar height

  offset = form.table_view.contentOffset
  new_top_offset = point.y - nav_bar_height
  unless new_top_offset == offset.y
    offset.y = new_top_offset
    form.table_view.setContentOffset(offset, animated: true)
  end

  self
rescue
  NSLog("can't focus on element #{self.class_name_without_kvo}")
end

#form_name ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 75

def form_name
  form.name
end

#has_errors? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'motion-prime/sections/form/base_field_section.rb', line 149

def has_errors?
  return false unless observing_errors?
  observing_errors_for.errors.info.slice(*errors_observer_fields).values.any?(&:present?)
end

#input? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'motion-prime/sections/form/base_field_section.rb', line 141

def input?
  false
end

#observe_model_errors ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 52

def observe_model_errors
  return unless observing_errors?
  on_error_change = proc { |old_value, new_value|
    changes = observing_errors_for.errors.changes
    errors_observer_fields.each do |field|
      next unless changes.has_key?(field)
      if @status_for_updated == :rendered
        reload_section
      else
        create_elements!
        form.reload_table_data
      end
    end
  }.weak!

  observe observing_errors_for.errors, :info, &on_error_change
end

#observing_errors? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'motion-prime/sections/form/base_field_section.rb', line 145

def observing_errors?
  @errors_observer_options.present?
end

#observing_errors_for ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 162

def observing_errors_for
  @errors_observer_options[:resource]
end

#on_section_render ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 47

def on_section_render
  @status_for_updated = :rendered
  form.register_elements_from_section(self)
end

#prepare_table_data ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 12

def prepare_table_data
  @form = @options[:table]
  if options[:observe_errors]
    # Do not remove clone() after delete()
    @errors_observer_options = normalize_options(options.delete(:observe_errors).clone, self)
  end
end

#reload_section ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 172

def reload_section
  clear_observers
  form.reload_cell_section(self)
end

#render_element?(element_name) ⇒ Boolean

Returns true if we should render element in current state

Parameters:

  • element_name (Symbol) —

    name of element in field

Returns:

  • (Boolean) 


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# File 'motion-prime/sections/form/base_field_section.rb', line 24

def render_element?(element_name)
  case element_name.to_sym
  when :error_message
    has_errors?
  when :label
    not @options[:label] === false
  else true
  end
end

#update_height(height) ⇒ MotionPrime::BaseFieldSection

Changes height of the field (the cell in table) with animation.

Parameters:

  • height (Integet) —

    new height of field

Returns:



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# File 'motion-prime/sections/form/base_field_section.rb', line 38

def update_height(height)
  return if container_options[:height] == height
  container_options[:height] = height
  index = form.field_indexes[name]
  form.send :set_data_stamp, self.object_id
  form.table_view.reloadRowsAtIndexPaths([index], withRowAnimation: UITableViewRowAnimationFade)
  self
end

#value ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 137

def value
  raise "should be defined"
end