Class: Volt::ViewScope
Instance Attribute Summary collapse
Instance Method Summary
collapse
#add_id_to_attributes, #add_multiple_attribute, #add_single_attribute, #add_string_template_renderer, #attribute_string, #binding_parts_and_count, #getter_to_setter, #process_attribute, #process_attributes, #process_event_binding
Constructor Details
#initialize(handler, path) ⇒ ViewScope
Returns a new instance of ViewScope.
10
11
12
13
14
15
16
17
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 10
def initialize(handler, path)
@handler = handler
@path = path
@html = ''
@bindings = {}
@binding_number = 0
end
|
Instance Attribute Details
#binding_number ⇒ Object
Returns the value of attribute binding_number.
8
9
10
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 8
def binding_number
@binding_number
end
|
Returns the value of attribute bindings.
7
8
9
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 7
def bindings
@bindings
end
|
Returns the value of attribute html.
7
8
9
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 7
def html
@html
end
|
Returns the value of attribute path.
8
9
10
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 8
def path
@path
end
|
Instance Method Details
19
20
21
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 19
def <<(html)
@html << html
end
|
#add_binding(content) ⇒ Object
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 23
def add_binding(content)
content = content.strip
index = content.index(/[ \(]/)
if index
first_symbol = content[0...index]
args = content[index..-1].strip
case first_symbol
when 'if'
add_if(args)
when 'elsif'
add_else(args)
when 'else'
if args.blank?
add_else(nil)
else
fail "else does not take a conditional, #{content} was provided."
end
when 'template'
add_template(args)
else
if content =~ /.each\s+do\s+\|/
add_each(content)
else
add_content_binding(content)
end
end
else
case content
when 'end'
close_scope
when 'else'
add_else(nil)
else
add_content_binding(content)
end
end
end
|
#add_component(tag_name, attributes, unary) ⇒ Object
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 109
def add_component(tag_name, attributes, unary)
component_name = tag_name[1..-1].gsub(':', '/')
@handler.html << "<!-- $#{@binding_number} --><!-- $/#{@binding_number} -->"
data_hash = []
attributes.each_pair do |name, value|
parts, binding_count = binding_parts_and_count(value)
if binding_count > 0
if binding_count > 1
elsif parts.size == 1 && binding_count == 1
getter = value[2...-2].strip
data_hash << "#{name.inspect} => Proc.new { #{getter} }"
setter = getter_to_setter(getter)
data_hash << "#{(name + '=').inspect} => Proc.new { |val| #{setter} }"
parent = parent_fetcher(getter)
data_hash << "#{(name + '_parent').inspect} => Proc.new { #{parent} }"
data_hash << "#{(name + '_last_method').inspect} => #{last_method_name(getter).inspect}"
end
else
data_hash << "#{name.inspect} => #{value.inspect}"
end
end
arguments = "#{component_name.inspect}, { #{data_hash.join(',')} }"
save_binding(@binding_number, "lambda { |__p, __t, __c, __id| Volt::ComponentBinding.new(__p, __t, __c, __id, #{@path.inspect}, Proc.new { [#{arguments}] }) }")
@binding_number += 1
end
|
#add_content_binding(content) ⇒ Object
63
64
65
66
67
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 63
def add_content_binding(content)
@handler.html << "<!-- $#{@binding_number} --><!-- $/#{@binding_number} -->"
save_binding(@binding_number, "lambda { |__p, __t, __c, __id| Volt::ContentBinding.new(__p, __t, __c, __id, Proc.new { #{content} }) }")
@binding_number += 1
end
|
#add_each(content) ⇒ Object
79
80
81
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 79
def add_each(content)
@handler.scope << EachScope.new(@handler, @path + "/__each#{@binding_number}", content)
end
|
#add_else(content) ⇒ Object
75
76
77
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 75
def add_else(content)
fail '#else can only be added inside of an if block'
end
|
#add_if(content) ⇒ Object
69
70
71
72
73
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 69
def add_if(content)
@handler.scope << IfViewScope.new(@handler, @path + "/__ifg#{@binding_number}", content)
@binding_number += 1
end
|
#add_template(content) ⇒ Object
83
84
85
86
87
88
89
90
91
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 83
def add_template(content)
content = content.strip.gsub(/^\(/, '').gsub(/\)$/, '')
@handler.html << "<!-- $#{@binding_number} --><!-- $/#{@binding_number} -->"
save_binding(@binding_number, "lambda { |__p, __t, __c, __id| Volt::TemplateBinding.new(__p, __t, __c, __id, #{@path.inspect}, Proc.new { [#{content}] }) }")
@binding_number += 1
end
|
#add_textarea(tag_name, attributes, unary) ⇒ Object
153
154
155
156
157
158
159
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 153
def add_textarea(tag_name, attributes, unary)
@handler.scope << TextareaScope.new(@handler, @path + "/__txtarea#{@binding_number}", attributes)
@binding_number += 1
@handler.last.close_scope if unary
end
|
#close_scope(pop = true) ⇒ Object
Called when this scope should be closed out
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 162
def close_scope(pop = true)
if pop
scope = @handler.scope.pop
else
scope = @handler.last
end
fail "template path already exists: #{scope.path}" if @handler.templates[scope.path]
template = {
'html' => scope.html
}
if scope.bindings.size > 0
template['bindings'] = scope.bindings
end
@handler.templates[scope.path] = template
end
|
#last_method_name(getter) ⇒ Object
105
106
107
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 105
def last_method_name(getter)
getter.strip[/[^.]+$/]
end
|
#parent_fetcher(getter) ⇒ Object
Returns ruby code to fetch the parent. (by removing the last fetch) TODO: Probably want to do this with AST transforms with the parser/unparser gems
95
96
97
98
99
100
101
102
103
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 95
def parent_fetcher(getter)
parent = getter.strip.gsub(/[.][^.]+$/, '')
if parent.blank? || !getter.index('.')
parent = 'self'
end
parent
end
|
#save_binding(binding_number, code) ⇒ Object
183
184
185
186
|
# File 'lib/volt/server/html_parser/view_scope.rb', line 183
def save_binding(binding_number, code)
@bindings[binding_number] ||= []
@bindings[binding_number] << code
end
|