Class: Glimmer::SWT::WidgetProxy
Direct Known Subclasses
BrowserProxy, ButtonProxy, ComboProxy, CompositeProxy, DisplayProxy, LabelProxy, ListProxy, MessageBoxProxy, TabFolderProxy, TableColumnProxy, TableItemProxy, TableProxy, TextProxy
Constant Summary
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- DEFAULT_INITIALIZERS =
{
"composite" => lambda do |composite_proxy|
if composite_proxy.layout.nil?
layout = GridLayoutProxy.new(composite_proxy, [])
composite_proxy.layout = layout
layout.margin_width = 15
layout.margin_height = 15
end
end,
"table_column" => lambda do |table_column_proxy|
table_column_proxy.width = 80
end,
}
Instance Attribute Summary collapse
Class Method Summary
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Instance Method Summary
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#attribute_getter, #attribute_setter, #get_attribute
Constructor Details
#initialize(parent, args) ⇒ WidgetProxy
Returns a new instance of WidgetProxy.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 100
def initialize(parent, args)
@parent = parent
@args = args
@children = Set.new @enabled = true
DEFAULT_INITIALIZERS[self.class.underscored_widget_name(self)]&.call(self)
@parent.add_child(self) end
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Instance Attribute Details
#args ⇒ Object
Returns the value of attribute args.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def args
@args
end
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#background ⇒ Object
Returns the value of attribute background.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def background
@background
end
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#children ⇒ Object
Returns the value of attribute children.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def children
@children
end
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#enabled ⇒ Object
Returns the value of attribute enabled.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def enabled
@enabled
end
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#font ⇒ Object
Returns the value of attribute font.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def font
@font
end
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#foreground ⇒ Object
Returns the value of attribute foreground.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def foreground
@foreground
end
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#parent ⇒ Object
Returns the value of attribute parent.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def parent
@parent
end
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#path ⇒ Object
Returns the value of attribute path.
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# File 'lib/glimmer/swt/widget_proxy.rb', line 32
def path
@path
end
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Class Method Details
.for(keyword, parent, args) ⇒ Object
Factory Method that translates a Glimmer DSL keyword into a WidgetProxy object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 36
def for(keyword, parent, args)
the_widget_class = widget_class(keyword)
the_widget_class.new(parent, args)
end
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.max_id_number_for(name) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 58
def max_id_number_for(name)
@max_id_numbers[name] = max_id_numbers[name] || 0
end
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.max_id_numbers ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 62
def max_id_numbers
@max_id_numbers ||= reset_max_id_numbers!
end
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.next_id_number_for(name) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 54
def next_id_number_for(name)
@max_id_numbers[name] = max_id_number_for(name) + 1
end
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.reset_max_id_numbers! ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 66
def reset_max_id_numbers!
@max_id_numbers = {}
end
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# File 'lib/glimmer/swt/widget_proxy.rb', line 70
def underscored_widget_name(widget_proxy)
widget_proxy.class.name.split(/::|\./).last.sub(/Proxy$/, '').underscore
end
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# File 'lib/glimmer/swt/widget_proxy.rb', line 41
def widget_class(keyword)
class_name_alternative = keyword.camelcase(:upper)
class_name_main = "#{class_name_alternative}Proxy"
Glimmer::SWT.const_get(class_name_main.to_sym) rescue Glimmer::SWT.const_get(class_name_alternative.to_sym)
rescue => e
puts "Widget #{keyword} was not found!"
nil
end
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# File 'lib/glimmer/swt/widget_proxy.rb', line 50
def widget_exists?(keyword)
!!widget_class(keyword)
end
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Instance Method Details
#add_child(child) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 126
def add_child(child)
@children << child
child.render
end
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#add_css_class(css_class) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 212
def add_css_class(css_class)
dom_element.add_class(css_class)
end
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#add_css_classes(css_classes_to_add) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 216
def add_css_classes(css_classes_to_add)
css_classes_to_add.each {|css_class| add_css_class(css_class)}
end
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#add_observer(observer, property_name) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 297
def add_observer(observer, property_name)
property_listener_installers = self.class.ancestors.map {|ancestor| widget_property_listener_installers[ancestor]}.compact
widget_listener_installers = property_listener_installers.map{|installer| installer[property_name.to_s.to_sym]}.compact if !property_listener_installers.empty?
widget_listener_installers.to_a.each do |widget_listener_installer|
widget_listener_installer.call(observer)
end
end
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#apply_property_type_converters(attribute_name, args) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 310
def apply_property_type_converters(attribute_name, args)
if args.count == 1
value = args.first
converter = property_type_converters[attribute_name.to_sym]
args[0] = converter.call(value) if converter
end
end
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#build_dom ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 179
def build_dom
@dom = nil
@dom = dom
@dom = @parent.layout.dom(@dom) if @parent.respond_to?(:layout) && @parent.layout
end
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#can_handle_observation_request?(observation_request) ⇒ Boolean
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# File 'lib/glimmer/swt/widget_proxy.rb', line 266
def can_handle_observation_request?(observation_request)
observation_request = observation_request.to_s
if observation_request.start_with?('on_swt_')
constant_name = observation_request.sub(/^on_swt_/, '')
SWTProxy.has_constant?(constant_name)
elsif observation_request.start_with?('on_')
true end
end
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#clear_css_classes ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 228
def clear_css_classes
css_classes.each {|css_class| remove_css_class(css_class)}
end
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#content(&block) ⇒ Object
#css_classes ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 109
def css_classes
dom_element.attr('class').to_s.split
end
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#dispose ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 113
def dispose
Document.find(path).remove
end
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#dom_element ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 236
def dom_element
Document.find(path)
end
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#element ⇒ Object
Root element representing widget. Must be overridden by subclasses if different from div
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# File 'lib/glimmer/swt/widget_proxy.rb', line 122
def element
'div'
end
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#handle_observation_request(keyword, &event_listener) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 279
def handle_observation_request(keyword, &event_listener)
return unless observation_request_to_event_mapping.keys.include?(keyword)
@observation_requests ||= {}
@observation_requests[keyword] ||= Set.new
event = nil
delegate = nil
[observation_request_to_event_mapping[keyword]].flatten.each do |mapping|
@observation_requests[keyword] << event_listener
event = mapping[:event]
event_handler = mapping[:event_handler]
potential_event_listener = event_handler&.call(event_listener)
event_listener = potential_event_listener || event_listener
delegate = listener_dom_element.on(event, &event_listener)
end
EventListenerProxy.new(element_proxy: self, event: event, selector: selector, delegate: delegate)
end
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#has_style?(symbol) ⇒ Boolean
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# File 'lib/glimmer/swt/widget_proxy.rb', line 232
def has_style?(symbol)
@args.include?(symbol) end
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#id=(value) ⇒ Object
Sets id explicitly. Useful in cases of wanting to maintain a stable id
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# File 'lib/glimmer/swt/widget_proxy.rb', line 203
def id=(value)
@id = value
end
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#listener_dom_element ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 262
def listener_dom_element
Document.find(listener_path)
end
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#listener_path ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 258
def listener_path
path
end
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#name ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 194
def name
self.class.name.split('::').last.underscore.sub(/_proxy$/, '').gsub('_', '-')
end
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#observation_request_to_event_mapping ⇒ Object
Subclasses must override with their own mappings
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# File 'lib/glimmer/swt/widget_proxy.rb', line 190
def observation_request_to_event_mapping
{}
end
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#parent_dom_element ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 254
def parent_dom_element
Document.find(parent_path)
end
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#parent_path ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 154
def parent_path
@parent.path
end
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#property_type_converters ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 322
def property_type_converters
color_converter = lambda do |value|
if value.is_a?(Symbol) || value.is_a?(String)
ColorProxy.new(value)
else
value
end
end
@property_type_converters ||= {
:background => color_converter,
:foreground => color_converter,
:text => lambda do |value|
value.to_s
end,
}
end
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#remove_css_class(css_class) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 220
def remove_css_class(css_class)
dom_element.remove_class(css_class)
end
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#remove_css_classes(css_classes_to_remove) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 224
def remove_css_classes(css_classes_to_remove)
css_classes_to_remove.each {|css_class| remove_css_class(css_class)}
end
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#render ⇒ Object
Also known as:
redraw
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# File 'lib/glimmer/swt/widget_proxy.rb', line 158
def render
old_element = dom_element
brand_new = @dom.nil? || old_element.empty?
build_dom
if brand_new
Document.find(parent_path).append(@dom)
else
old_element.replace_with(@dom)
end
@observation_requests&.clone&.each do |keyword, event_listener_set|
event_listener_set.each do |event_listener|
@observation_requests[keyword].delete(event_listener)
handle_observation_request(keyword, &event_listener)
end
end
children.each do |child|
child.render
end
end
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#selector ⇒ Object
Subclasses can override with their own selector
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# File 'lib/glimmer/swt/widget_proxy.rb', line 208
def selector
"#{name}##{id}"
end
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#set_attribute(attribute_name, *args) ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 305
def set_attribute(attribute_name, *args)
apply_property_type_converters(attribute_name, args)
super(attribute_name, *args) end
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#style_element ⇒ Object
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# File 'lib/glimmer/swt/widget_proxy.rb', line 240
def style_element
style_element_id = "#{id}-style"
style_element_selector = "style##{style_element_id}"
element = dom_element.find(style_element_selector)
if element.empty?
new_element = Element.new(:style)
new_element.attr('id', style_element_id)
new_element.attr('class', "#{name.gsub('_', '-')}-instance-style widget-instance-style")
dom_element.prepend(new_element)
element = dom_element.find(style_element_selector)
end
element
end
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# File 'lib/glimmer/swt/widget_proxy.rb', line 376
def widget_property_listener_installers
@swt_widget_property_listener_installers ||= {
TextProxy => {
:text => lambda do |observer|
on_modify_text { |modify_event|
observer.call(text)
}
end,
},
}
end
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