Class: Glimmer::SWT::TableItemProxy

Inherits:
WidgetProxy show all
Defined in:
lib/glimmer/swt/table_item_proxy.rb

Constant Summary collapse

STYLE = 
<<~CSS
  tr.table-item td {
    padding-bottom: 0;
  }
  tr.table-item:nth-child(even):not(.selected) {
    background: rgb(243, 244, 246);
  }
CSS

Constants inherited from WidgetProxy

WidgetProxy::DEFAULT_INITIALIZERS

Instance Attribute Summary collapse

Attributes inherited from WidgetProxy

#args, #background, #children, #disposed?, #enabled, #focus, #font, #foreground, #parent, #path, #rendered

Instance Method Summary collapse

Methods inherited from WidgetProxy

#add_content_on_render, #add_css_class, #add_css_classes, #add_observer, #apply_property_type_converters, #build_dom, #can_handle_observation_request?, #clear_css_classes, #content, #content_on_render_blocks, #css_classes, #default_observation_request_to_event_mapping, #dispose, #dom_element, #effective_observation_request_to_event_mapping, for, #handle_observation_request, #has_style?, #id, #id=, #listener_dom_element, #listener_path, max_id_number_for, max_id_numbers, #method_missing, #name, next_id_number_for, #observation_request_to_event_mapping, #observation_requests, #parent_dom_element, #post_add_content, #post_dispose_child, #post_initialize_child, #property_type_converters, #remove_all_listeners, #remove_css_class, #remove_css_classes, #render, reset_max_id_numbers!, #selector, #set_attribute, #set_focus, #style_element, underscored_widget_name, widget_class, widget_exists?, #widget_property_listener_installers

Methods included from PropertyOwner

#attribute_getter, #attribute_setter, #get_attribute, #set_attribute

Constructor Details

#initialize(parent, args, block) ⇒ TableItemProxy

Returns a new instance of TableItemProxy.



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 38

def initialize(parent, args, block)
  super(parent, args, block)
  # TODO check if there is a need to remove this observer when removing widget from table upon items update
  on_widget_selected { |event|
    parent.select(parent.index_of(self), event.meta?)
  }
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Glimmer::SWT::WidgetProxy

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 36

def data
  @data
end

Instance Method Details

#cell_dom_element(column_index) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 87

def cell_dom_element(column_index)
  dom_element.find("td:nth-child(#{column_index + 1})")
end

#data_hash ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 75

def data_hash
  @data_hash ||= {}
end

#dom ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 160

def dom
  table_item_id = id
  table_item_id_style = css
  table_item_css_classes = css_classes
  table_item_css_classes << name
  table_item_selection = parent.selection.include?(self)
  if table_item_selection
    table_item_css_classes << 'selected'
  else
    table_item_css_classes.delete('selected')
  end
  table_item_text_array = text_array
  table_item_max_width = max_column_width(@edit_column_index) if @edit_column_index

  @dom ||= html {
    tr(id: table_item_id, style: table_item_id_style, class: table_item_css_classes.to_a.join(' ')) {
      table_item_text_array.each_with_index do |table_item_text, column_index|
        td('data-column-index' => column_index) {
          if @edit_column_index == column_index
            input(type: 'text', value: table_item_text, style: "max-width: #{table_item_max_width - 11}px;")
          else
            table_item_text
          end
        }
      end
    }
  }.to_s
end

#edit(column_index) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 135

def edit(column_index)
  return if @edit_column_index == column_index.to_i
  parent.select(parent.index_of(self), false)
  @edit_column_index = column_index.to_i
  redraw
end

#element ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 83

def element
  'tr'
end

#get_data(key = nil) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 59

def get_data(key = nil)
  if key.nil?
    @data
  else
    data_hash[key]
  end
end

#get_text(index) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 46

def get_text(index)
  text_array[index]
end

#max_column_width(column_index) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 156

def max_column_width(column_index)
  parent_dom_element.find("tr td:nth-child(#{column_index + 1})").first.width
end

#on_widget_selected(&block) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 150

def on_widget_selected(&block)
  event = 'click'
  delegate = $document.on(event, selector, &block)
  EventListenerProxy.new(element_proxy: self, event: event, selector: selector, delegate: delegate)
end

#parent_path ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 79

def parent_path
  parent.items_path
end

#redraw ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 91

def redraw
  super() #TODO re-enable and remove below lines

  # TODO perhaps turn the following lambdas into methods
  table_item_edit_handler = lambda do |event, cancel = false|
    Async::Task.new do
      text_value = event.target.value
      edit_property = parent.column_properties[@edit_column_index]
      edit_model = get_data
      if !cancel && edit_model.send(edit_property) != text_value
        edit_model.send("#{edit_property}=", text_value)
        set_text(@edit_column_index, text_value)
      end
      @edit_column_index = nil
      redraw
    end
  end
  table_item_edit_cancel_handler = lambda do |event|
    Async::Task.new do
      table_item_edit_handler.call(event, true)
    end
  end
  table_item_edit_key_handler = lambda do |event|
    Async::Task.new do
      if event.key_code == 13
        table_item_edit_handler.call(event)
      elsif event.key_code == 27
        table_item_edit_cancel_handler.call(event)
      end
    end
  end
  
  if @edit_column_index
    table_item_input = dom_element.find("td:nth-child(#{@edit_column_index + 1}) input")
    if !table_item_input.empty?
      Async::Task.new do
        table_item_input.focus
        table_item_input.on('keyup', &table_item_edit_key_handler)
        table_item_input.on('focusout', &table_item_edit_cancel_handler)
      end
    end
  end
end

#redraw_selection ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 142

def redraw_selection
  if parent.selection.include?(self)
    dom_element.add_class('selected')
  else
    dom_element.remove_class('selected')
  end
end

#set_data(key = nil, data_value) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 67

def set_data(key = nil, data_value)
  if key.nil?
    @data = data_value
  else
    data_hash[key] = data_value
  end
end

#set_text(index, text_value) ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 50

def set_text(index, text_value)
  text_array[index] = text_value
  redraw
end

#text_array ⇒ Object 



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# File 'lib/glimmer/swt/table_item_proxy.rb', line 55

def text_array
  @text_array ||= []
end