| Class | Sass::Tree::PropNode |
| In: |
lib/sass/tree/prop_node.rb
|
| Parent: | Node |
A static node reprenting a CSS property.
@see Sass::Tree
| name | [RW] |
The name of the property, interspersed with {Sass::Script::Node}s representing
`#{}`-interpolation. Any adjacent strings will be merged together.
@return [Array<String, Sass::Script::Node>] |
| resolved_name | [RW] |
The name of the property after any interpolated SassScript has been
resolved. Only set once \{Tree::Node#perform} has been called.
@return [String] |
| resolved_value | [RW] |
The value of the property after any interpolated SassScript has been
resolved. Only set once \{Tree::Node#perform} has been called.
@return [String] |
| tabs | [RW] |
How deep this property is indented relative to a normal property. This is
only greater than 0 in the case that:
@return [Fixnum] |
| value | [RW] |
The value of the property.
@return [Sass::Script::Node] |
@param name [Array<String, Sass::Script::Node>] See \{name} @param value [Sass::Script::Node] See \{value} @param prop_syntax [Symbol] `:new` if this property uses `a: b`-style syntax,
`:old` if it uses `:a b`-style syntax
# File lib/sass/tree/prop_node.rb, line 49
49: def initialize(name, value, prop_syntax)
50: @name = Haml::Util.strip_string_array(
51: Haml::Util.merge_adjacent_strings(name))
52: @value = value
53: @tabs = 0
54: @prop_syntax = prop_syntax
55: super()
56: end
Compares the names and values of two properties.
@param other [Object] The object to compare with @return [Boolean] Whether or not this node and the other object
are the same
# File lib/sass/tree/prop_node.rb, line 63
63: def ==(other)
64: self.class == other.class && name == other.name && value == other.value && super
65: end
Returns a appropriate message indicating how to escape pseudo-class selectors. This only applies for old-style properties with no value, so returns the empty string if this is new-style.
@return [String] The message
# File lib/sass/tree/prop_node.rb, line 72
72: def pseudo_class_selector_message
73: return "" if @prop_syntax == :new || !value.is_a?(Sass::Script::String) || !value.value.empty?
74: "\nIf #{declaration.dump} should be a selector, use \"\\#{declaration}\" instead."
75: end
Converts nested properties into flat properties.
@param extends [Haml::Util::SubsetMap{Selector::Simple => Selector::Sequence}]
The extensions defined for this tree
@param parent [PropNode, nil] The parent node of this node,
or nil if the parent isn't a {PropNode}
@raise [Sass::SyntaxError] if the property uses invalid syntax
# File lib/sass/tree/prop_node.rb, line 102
102: def _cssize(extends, parent)
103: node = super
104: result = node.children.dup
105: if !node.resolved_value.empty? || node.children.empty?
106: node.send(:check!)
107: result.unshift(node)
108: end
109: result
110: end
Computes the CSS for the property.
@param tabs [Fixnum] The level of indentation for the CSS @return [String] The resulting CSS
# File lib/sass/tree/prop_node.rb, line 90
90: def _to_s(tabs)
91: to_return = ' ' * (tabs - 1 + self.tabs) + resolved_name + ":" +
92: (style == :compressed ? '' : ' ') + resolved_value + (style == :compressed ? "" : ";")
93: end
Updates the name and indentation of this node based on the parent name and nesting level.
@param extends [Haml::Util::SubsetMap{Selector::Simple => Selector::Sequence}]
The extensions defined for this tree
@param parent [PropNode, nil] The parent node of this node,
or nil if the parent isn't a {PropNode}
# File lib/sass/tree/prop_node.rb, line 119
119: def cssize!(extends, parent)
120: self.resolved_name = "#{parent.resolved_name}-#{resolved_name}" if parent
121: self.tabs = parent.tabs + (parent.resolved_value.empty? ? 0 : 1) if parent && style == :nested
122: super
123: end
Returns an error message if the given child node is invalid, and false otherwise.
{PropNode} only allows other {PropNode}s and {CommentNode}s as children. @param child [Tree::Node] A potential child node @return [String] An error message if the child is invalid, or nil otherwise
# File lib/sass/tree/prop_node.rb, line 148
148: def invalid_child?(child)
149: if !child.is_a?(PropNode) && !child.is_a?(CommentNode)
150: "Illegal nesting: Only properties may be nested beneath properties."
151: end
152: end
Runs any SassScript that may be embedded in the property, and invludes the parent property, if any.
@param environment [Sass::Environment] The lexical environment containing
variable and mixin values
# File lib/sass/tree/prop_node.rb, line 130
130: def perform!(environment)
131: @resolved_name = run_interp(@name, environment)
132: val = @value.perform(environment)
133: @resolved_value =
134: if @value.context == :equals && val.is_a?(Sass::Script::String)
135: val.value
136: else
137: val.to_s
138: end
139: super
140: end
@see Node#to_src
# File lib/sass/tree/prop_node.rb, line 80
80: def to_src(tabs, opts, fmt)
81: res = declaration(tabs, opts, fmt)
82: return res + "#{semi fmt}\n" if children.empty?
83: res + children_to_src(tabs, opts, fmt).rstrip + semi(fmt) + "\n"
84: end