kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity
ruby--ruby/lib/cgi/html.rb
xibbar 0bbda39758 * lib/cgi*: split cgi.rb into four files. [ruby-dev:36041] 
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19272 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2008-09-09 13:09:56 +00:00

1021 lines
34 KiB
Ruby
Raw Blame History

# Base module for HTML-generation mixins.
#
# Provides methods for code generation for tags following
# the various DTD element types.
class CGI
module TagMaker # :nodoc:
# Generate code for an element with required start and end tags.
#
# - -
def nn_element_def(element)
nOE_element_def(element, <<-END)
if block_given?
yield.to_s
else
""
end +
"</#{element.upcase}>"
END
end
# Generate code for an empty element.
#
# - O EMPTY
def nOE_element_def(element, append = nil)
s = <<-END
attributes={attributes=>nil} if attributes.kind_of?(String)
"<#{element.upcase}" + attributes.collect{|name, value|
next unless value
" " + CGI::escapeHTML(name) +
if true == value
""
else
'="' + CGI::escapeHTML(value) + '"'
end
}.join + ">"
END
s.sub!(/\Z/, " +") << append if append
s
end
# Generate code for an element for which the end (and possibly the
# start) tag is optional.
#
# O O or - O
def nO_element_def(element)
nOE_element_def(element, <<-END)
if block_given?
yield.to_s + "</#{element.upcase}>"
else
""
end
END
end
end # TagMaker
#
# Mixin module providing HTML generation methods.
#
# For example,
# cgi.a("http://www.example.com") { "Example" }
# # => "<A HREF=\"http://www.example.com\">Example</A>"
#
# Modules Http3, Http4, etc., contain more basic HTML-generation methods
# (:title, :center, etc.).
#
# See class CGI for a detailed example.
#
module HtmlExtension
# Generate an Anchor element as a string.
#
# +href+ can either be a string, giving the URL
# for the HREF attribute, or it can be a hash of
# the element's attributes.
#
# The body of the element is the string returned by the no-argument
# block passed in.
#
# a("http://www.example.com") { "Example" }
# # => "<A HREF=\"http://www.example.com\">Example</A>"
#
# a("HREF" => "http://www.example.com", "TARGET" => "_top") { "Example" }
# # => "<A HREF=\"http://www.example.com\" TARGET=\"_top\">Example</A>"
#
def a(href = "") # :yield:
attributes = if href.kind_of?(String)
{ "HREF" => href }
else
href
end
if block_given?
super(attributes){ yield }
else
super(attributes)
end
end
# Generate a Document Base URI element as a String.
#
# +href+ can either by a string, giving the base URL for the HREF
# attribute, or it can be a has of the element's attributes.
#
# The passed-in no-argument block is ignored.
#
# base("http://www.example.com/cgi")
# # => "<BASE HREF=\"http://www.example.com/cgi\">"
def base(href = "") # :yield:
attributes = if href.kind_of?(String)
{ "HREF" => href }
else
href
end
if block_given?
super(attributes){ yield }
else
super(attributes)
end
end
# Generate a BlockQuote element as a string.
#
# +cite+ can either be a string, give the URI for the source of
# the quoted text, or a hash, giving all attributes of the element,
# or it can be omitted, in which case the element has no attributes.
#
# The body is provided by the passed-in no-argument block
#
# blockquote("http://www.example.com/quotes/foo.html") { "Foo!" }
# #=> "<BLOCKQUOTE CITE=\"http://www.example.com/quotes/foo.html\">Foo!</BLOCKQUOTE>
def blockquote(cite = {}) # :yield:
attributes = if cite.kind_of?(String)
{ "CITE" => cite }
else
cite
end
if block_given?
super(attributes){ yield }
else
super(attributes)
end
end
# Generate a Table Caption element as a string.
#
# +align+ can be a string, giving the alignment of the caption
# (one of top, bottom, left, or right). It can be a hash of
# all the attributes of the element. Or it can be omitted.
#
# The body of the element is provided by the passed-in no-argument block.
#
# caption("left") { "Capital Cities" }
# # => <CAPTION ALIGN=\"left\">Capital Cities</CAPTION>
def caption(align = {}) # :yield:
attributes = if align.kind_of?(String)
{ "ALIGN" => align }
else
align
end
if block_given?
super(attributes){ yield }
else
super(attributes)
end
end
# Generate a Checkbox Input element as a string.
#
# The attributes of the element can be specified as three arguments,
# +name+, +value+, and +checked+. +checked+ is a boolean value;
# if true, the CHECKED attribute will be included in the element.
#
# Alternatively, the attributes can be specified as a hash.
#
# checkbox("name")
# # = checkbox("NAME" => "name")
#
# checkbox("name", "value")
# # = checkbox("NAME" => "name", "VALUE" => "value")
#
# checkbox("name", "value", true)
# # = checkbox("NAME" => "name", "VALUE" => "value", "CHECKED" => true)
def checkbox(name = "", value = nil, checked = nil)
attributes = if name.kind_of?(String)
{ "TYPE" => "checkbox", "NAME" => name,
"VALUE" => value, "CHECKED" => checked }
else
name["TYPE"] = "checkbox"
name
end
input(attributes)
end
# Generate a sequence of checkbox elements, as a String.
#
# The checkboxes will all have the same +name+ attribute.
# Each checkbox is followed by a label.
# There will be one checkbox for each value. Each value
# can be specified as a String, which will be used both
# as the value of the VALUE attribute and as the label
# for that checkbox. A single-element array has the
# same effect.
#
# Each value can also be specified as a three-element array.
# The first element is the VALUE attribute; the second is the
# label; and the third is a boolean specifying whether this
# checkbox is CHECKED.
#
# Each value can also be specified as a two-element
# array, by omitting either the value element (defaults
# to the same as the label), or the boolean checked element
# (defaults to false).
#
# checkbox_group("name", "foo", "bar", "baz")
# # <INPUT TYPE="checkbox" NAME="name" VALUE="foo">foo
# # <INPUT TYPE="checkbox" NAME="name" VALUE="bar">bar
# # <INPUT TYPE="checkbox" NAME="name" VALUE="baz">baz
#
# checkbox_group("name", ["foo"], ["bar", true], "baz")
# # <INPUT TYPE="checkbox" NAME="name" VALUE="foo">foo
# # <INPUT TYPE="checkbox" CHECKED NAME="name" VALUE="bar">bar
# # <INPUT TYPE="checkbox" NAME="name" VALUE="baz">baz
#
# checkbox_group("name", ["1", "Foo"], ["2", "Bar", true], "Baz")
# # <INPUT TYPE="checkbox" NAME="name" VALUE="1">Foo
# # <INPUT TYPE="checkbox" CHECKED NAME="name" VALUE="2">Bar
# # <INPUT TYPE="checkbox" NAME="name" VALUE="Baz">Baz
#
# checkbox_group("NAME" => "name",
# "VALUES" => ["foo", "bar", "baz"])
#
# checkbox_group("NAME" => "name",
# "VALUES" => [["foo"], ["bar", true], "baz"])
#
# checkbox_group("NAME" => "name",
# "VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])
def checkbox_group(name = "", *values)
if name.kind_of?(Hash)
values = name["VALUES"]
name = name["NAME"]
end
values.collect{|value|
if value.kind_of?(String)
checkbox(name, value) + value
else
if value[value.bytesize - 1] == true
checkbox(name, value[0], true) +
value[value.bytesize - 2]
else
checkbox(name, value[0]) +
value[value.bytesize - 1]
end
end
}.join
end
# Generate an File Upload Input element as a string.
#
# The attributes of the element can be specified as three arguments,
# +name+, +size+, and +maxlength+. +maxlength+ is the maximum length
# of the file's _name_, not of the file's _contents_.
#
# Alternatively, the attributes can be specified as a hash.
#
# See #multipart_form() for forms that include file uploads.
#
# file_field("name")
# # <INPUT TYPE="file" NAME="name" SIZE="20">
#
# file_field("name", 40)
# # <INPUT TYPE="file" NAME="name" SIZE="40">
#
# file_field("name", 40, 100)
# # <INPUT TYPE="file" NAME="name" SIZE="40" MAXLENGTH="100">
#
# file_field("NAME" => "name", "SIZE" => 40)
# # <INPUT TYPE="file" NAME="name" SIZE="40">
def file_field(name = "", size = 20, maxlength = nil)
attributes = if name.kind_of?(String)
{ "TYPE" => "file", "NAME" => name,
"SIZE" => size.to_s }
else
name["TYPE"] = "file"
name
end
attributes["MAXLENGTH"] = maxlength.to_s if maxlength
input(attributes)
end
# Generate a Form element as a string.
#
# +method+ should be either "get" or "post", and defaults to the latter.
# +action+ defaults to the current CGI script name. +enctype+
# defaults to "application/x-www-form-urlencoded".
#
# Alternatively, the attributes can be specified as a hash.
#
# See also #multipart_form() for forms that include file uploads.
#
# form{ "string" }
# # <FORM METHOD="post" ENCTYPE="application/x-www-form-urlencoded">string</FORM>
#
# form("get") { "string" }
# # <FORM METHOD="get" ENCTYPE="application/x-www-form-urlencoded">string</FORM>
#
# form("get", "url") { "string" }
# # <FORM METHOD="get" ACTION="url" ENCTYPE="application/x-www-form-urlencoded">string</FORM>
#
# form("METHOD" => "post", "ENCTYPE" => "enctype") { "string" }
# # <FORM METHOD="post" ENCTYPE="enctype">string</FORM>
def form(method = "post", action = script_name, enctype = "application/x-www-form-urlencoded")
attributes = if method.kind_of?(String)
{ "METHOD" => method, "ACTION" => action,
"ENCTYPE" => enctype }
else
unless method.has_key?("METHOD")
method["METHOD"] = "post"
end
unless method.has_key?("ENCTYPE")
method["ENCTYPE"] = enctype
end
method
end
if block_given?
body = yield
else
body = ""
end
if @output_hidden
body += @output_hidden.collect{|k,v|
"<INPUT TYPE=\"HIDDEN\" NAME=\"#{k}\" VALUE=\"#{v}\">"
}.join
end
super(attributes){body}
end
# Generate a Hidden Input element as a string.
#
# The attributes of the element can be specified as two arguments,
# +name+ and +value+.
#
# Alternatively, the attributes can be specified as a hash.
#
# hidden("name")
# # <INPUT TYPE="hidden" NAME="name">
#
# hidden("name", "value")
# # <INPUT TYPE="hidden" NAME="name" VALUE="value">
#
# hidden("NAME" => "name", "VALUE" => "reset", "ID" => "foo")
# # <INPUT TYPE="hidden" NAME="name" VALUE="value" ID="foo">
def hidden(name = "", value = nil)
attributes = if name.kind_of?(String)
{ "TYPE" => "hidden", "NAME" => name, "VALUE" => value }
else
name["TYPE"] = "hidden"
name
end
input(attributes)
end
# Generate a top-level HTML element as a string.
#
# The attributes of the element are specified as a hash. The
# pseudo-attribute "PRETTY" can be used to specify that the generated
# HTML string should be indented. "PRETTY" can also be specified as
# a string as the sole argument to this method. The pseudo-attribute
# "DOCTYPE", if given, is used as the leading DOCTYPE SGML tag; it
# should include the entire text of this tag, including angle brackets.
#
# The body of the html element is supplied as a block.
#
# html{ "string" }
# # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML>string</HTML>
#
# html("LANG" => "ja") { "string" }
# # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML LANG="ja">string</HTML>
#
# html("DOCTYPE" => false) { "string" }
# # <HTML>string</HTML>
#
# html("DOCTYPE" => '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">') { "string" }
# # <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><HTML>string</HTML>
#
# html("PRETTY" => " ") { "<BODY></BODY>" }
# # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
# # <HTML>
# # <BODY>
# # </BODY>
# # </HTML>
#
# html("PRETTY" => "\t") { "<BODY></BODY>" }
# # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
# # <HTML>
# # <BODY>
# # </BODY>
# # </HTML>
#
# html("PRETTY") { "<BODY></BODY>" }
# # = html("PRETTY" => " ") { "<BODY></BODY>" }
#
# html(if $VERBOSE then "PRETTY" end) { "HTML string" }
#
def html(attributes = {}) # :yield:
if nil == attributes
attributes = {}
elsif "PRETTY" == attributes
attributes = { "PRETTY" => true }
end
pretty = attributes.delete("PRETTY")
pretty = " " if true == pretty
buf = ""
if attributes.has_key?("DOCTYPE")
if attributes["DOCTYPE"]
buf += attributes.delete("DOCTYPE")
else
attributes.delete("DOCTYPE")
end
else
buf += doctype
end
if block_given?
buf += super(attributes){ yield }
else
buf += super(attributes)
end
if pretty
CGI::pretty(buf, pretty)
else
buf
end
end
# Generate an Image Button Input element as a string.
#
# +src+ is the URL of the image to use for the button. +name+
# is the input name. +alt+ is the alternative text for the image.
#
# Alternatively, the attributes can be specified as a hash.
#
# image_button("url")
# # <INPUT TYPE="image" SRC="url">
#
# image_button("url", "name", "string")
# # <INPUT TYPE="image" SRC="url" NAME="name" ALT="string">
#
# image_button("SRC" => "url", "ATL" => "strng")
# # <INPUT TYPE="image" SRC="url" ALT="string">
def image_button(src = "", name = nil, alt = nil)
attributes = if src.kind_of?(String)
{ "TYPE" => "image", "SRC" => src, "NAME" => name,
"ALT" => alt }
else
src["TYPE"] = "image"
src["SRC"] ||= ""
src
end
input(attributes)
end
# Generate an Image element as a string.
#
# +src+ is the URL of the image. +alt+ is the alternative text for
# the image. +width+ is the width of the image, and +height+ is
# its height.
#
# Alternatively, the attributes can be specified as a hash.
#
# img("src", "alt", 100, 50)
# # <IMG SRC="src" ALT="alt" WIDTH="100" HEIGHT="50">
#
# img("SRC" => "src", "ALT" => "alt", "WIDTH" => 100, "HEIGHT" => 50)
# # <IMG SRC="src" ALT="alt" WIDTH="100" HEIGHT="50">
def img(src = "", alt = "", width = nil, height = nil)
attributes = if src.kind_of?(String)
{ "SRC" => src, "ALT" => alt }
else
src
end
attributes["WIDTH"] = width.to_s if width
attributes["HEIGHT"] = height.to_s if height
super(attributes)
end
# Generate a Form element with multipart encoding as a String.
#
# Multipart encoding is used for forms that include file uploads.
#
# +action+ is the action to perform. +enctype+ is the encoding
# type, which defaults to "multipart/form-data".
#
# Alternatively, the attributes can be specified as a hash.
#
# multipart_form{ "string" }
# # <FORM METHOD="post" ENCTYPE="multipart/form-data">string</FORM>
#
# multipart_form("url") { "string" }
# # <FORM METHOD="post" ACTION="url" ENCTYPE="multipart/form-data">string</FORM>
def multipart_form(action = nil, enctype = "multipart/form-data")
attributes = if action == nil
{ "METHOD" => "post", "ENCTYPE" => enctype }
elsif action.kind_of?(String)
{ "METHOD" => "post", "ACTION" => action,
"ENCTYPE" => enctype }
else
unless action.has_key?("METHOD")
action["METHOD"] = "post"
end
unless action.has_key?("ENCTYPE")
action["ENCTYPE"] = enctype
end
action
end
if block_given?
form(attributes){ yield }
else
form(attributes)
end
end
# Generate a Password Input element as a string.
#
# +name+ is the name of the input field. +value+ is its default
# value. +size+ is the size of the input field display. +maxlength+
# is the maximum length of the inputted password.
#
# Alternatively, attributes can be specified as a hash.
#
# password_field("name")
# # <INPUT TYPE="password" NAME="name" SIZE="40">
#
# password_field("name", "value")
# # <INPUT TYPE="password" NAME="name" VALUE="value" SIZE="40">
#
# password_field("password", "value", 80, 200)
# # <INPUT TYPE="password" NAME="name" VALUE="value" SIZE="80" MAXLENGTH="200">
#
# password_field("NAME" => "name", "VALUE" => "value")
# # <INPUT TYPE="password" NAME="name" VALUE="value">
def password_field(name = "", value = nil, size = 40, maxlength = nil)
attributes = if name.kind_of?(String)
{ "TYPE" => "password", "NAME" => name,
"VALUE" => value, "SIZE" => size.to_s }
else
name["TYPE"] = "password"
name
end
attributes["MAXLENGTH"] = maxlength.to_s if maxlength
input(attributes)
end
# Generate a Select element as a string.
#
# +name+ is the name of the element. The +values+ are the options that
# can be selected from the Select menu. Each value can be a String or
# a one, two, or three-element Array. If a String or a one-element
# Array, this is both the value of that option and the text displayed for
# it. If a three-element Array, the elements are the option value, displayed
# text, and a boolean value specifying whether this option starts as selected.
# The two-element version omits either the option value (defaults to the same
# as the display text) or the boolean selected specifier (defaults to false).
#
# The attributes and options can also be specified as a hash. In this
# case, options are specified as an array of values as described above,
# with the hash key of "VALUES".
#
# popup_menu("name", "foo", "bar", "baz")
# # <SELECT NAME="name">
# # <OPTION VALUE="foo">foo</OPTION>
# # <OPTION VALUE="bar">bar</OPTION>
# # <OPTION VALUE="baz">baz</OPTION>
# # </SELECT>
#
# popup_menu("name", ["foo"], ["bar", true], "baz")
# # <SELECT NAME="name">
# # <OPTION VALUE="foo">foo</OPTION>
# # <OPTION VALUE="bar" SELECTED>bar</OPTION>
# # <OPTION VALUE="baz">baz</OPTION>
# # </SELECT>
#
# popup_menu("name", ["1", "Foo"], ["2", "Bar", true], "Baz")
# # <SELECT NAME="name">
# # <OPTION VALUE="1">Foo</OPTION>
# # <OPTION SELECTED VALUE="2">Bar</OPTION>
# # <OPTION VALUE="Baz">Baz</OPTION>
# # </SELECT>
#
# popup_menu("NAME" => "name", "SIZE" => 2, "MULTIPLE" => true,
# "VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])
# # <SELECT NAME="name" MULTIPLE SIZE="2">
# # <OPTION VALUE="1">Foo</OPTION>
# # <OPTION SELECTED VALUE="2">Bar</OPTION>
# # <OPTION VALUE="Baz">Baz</OPTION>
# # </SELECT>
def popup_menu(name = "", *values)
if name.kind_of?(Hash)
values = name["VALUES"]
size = name["SIZE"].to_s if name["SIZE"]
multiple = name["MULTIPLE"]
name = name["NAME"]
else
size = nil
multiple = nil
end
select({ "NAME" => name, "SIZE" => size,
"MULTIPLE" => multiple }){
values.collect{|value|
if value.kind_of?(String)
option({ "VALUE" => value }){ value }
else
if value[value.bytesize - 1] == true
option({ "VALUE" => value[0], "SELECTED" => true }){
value[value.bytesize - 2]
}
else
option({ "VALUE" => value[0] }){
value[value.bytesize - 1]
}
end
end
}.join
}
end
# Generates a radio-button Input element.
#
# +name+ is the name of the input field. +value+ is the value of
# the field if checked. +checked+ specifies whether the field
# starts off checked.
#
# Alternatively, the attributes can be specified as a hash.
#
# radio_button("name", "value")
# # <INPUT TYPE="radio" NAME="name" VALUE="value">
#
# radio_button("name", "value", true)
# # <INPUT TYPE="radio" NAME="name" VALUE="value" CHECKED>
#
# radio_button("NAME" => "name", "VALUE" => "value", "ID" => "foo")
# # <INPUT TYPE="radio" NAME="name" VALUE="value" ID="foo">
def radio_button(name = "", value = nil, checked = nil)
attributes = if name.kind_of?(String)
{ "TYPE" => "radio", "NAME" => name,
"VALUE" => value, "CHECKED" => checked }
else
name["TYPE"] = "radio"
name
end
input(attributes)
end
# Generate a sequence of radio button Input elements, as a String.
#
# This works the same as #checkbox_group(). However, it is not valid
# to have more than one radiobutton in a group checked.
#
# radio_group("name", "foo", "bar", "baz")
# # <INPUT TYPE="radio" NAME="name" VALUE="foo">foo
# # <INPUT TYPE="radio" NAME="name" VALUE="bar">bar
# # <INPUT TYPE="radio" NAME="name" VALUE="baz">baz
#
# radio_group("name", ["foo"], ["bar", true], "baz")
# # <INPUT TYPE="radio" NAME="name" VALUE="foo">foo
# # <INPUT TYPE="radio" CHECKED NAME="name" VALUE="bar">bar
# # <INPUT TYPE="radio" NAME="name" VALUE="baz">baz
#
# radio_group("name", ["1", "Foo"], ["2", "Bar", true], "Baz")
# # <INPUT TYPE="radio" NAME="name" VALUE="1">Foo
# # <INPUT TYPE="radio" CHECKED NAME="name" VALUE="2">Bar
# # <INPUT TYPE="radio" NAME="name" VALUE="Baz">Baz
#
# radio_group("NAME" => "name",
# "VALUES" => ["foo", "bar", "baz"])
#
# radio_group("NAME" => "name",
# "VALUES" => [["foo"], ["bar", true], "baz"])
#
# radio_group("NAME" => "name",
# "VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])
def radio_group(name = "", *values)
if name.kind_of?(Hash)
values = name["VALUES"]
name = name["NAME"]
end
values.collect{|value|
if value.kind_of?(String)
radio_button(name, value) + value
else
if value[value.bytesize - 1] == true
radio_button(name, value[0], true) +
value[value.bytesize - 2]
else
radio_button(name, value[0]) +
value[value.bytesize - 1]
end
end
}.join
end
# Generate a reset button Input element, as a String.
#
# This resets the values on a form to their initial values. +value+
# is the text displayed on the button. +name+ is the name of this button.
#
# Alternatively, the attributes can be specified as a hash.
#
# reset
# # <INPUT TYPE="reset">
#
# reset("reset")
# # <INPUT TYPE="reset" VALUE="reset">
#
# reset("VALUE" => "reset", "ID" => "foo")
# # <INPUT TYPE="reset" VALUE="reset" ID="foo">
def reset(value = nil, name = nil)
attributes = if (not value) or value.kind_of?(String)
{ "TYPE" => "reset", "VALUE" => value, "NAME" => name }
else
value["TYPE"] = "reset"
value
end
input(attributes)
end
alias scrolling_list popup_menu
# Generate a submit button Input element, as a String.
#
# +value+ is the text to display on the button. +name+ is the name
# of the input.
#
# Alternatively, the attributes can be specified as a hash.
#
# submit
# # <INPUT TYPE="submit">
#
# submit("ok")
# # <INPUT TYPE="submit" VALUE="ok">
#
# submit("ok", "button1")
# # <INPUT TYPE="submit" VALUE="ok" NAME="button1">
#
# submit("VALUE" => "ok", "NAME" => "button1", "ID" => "foo")
# # <INPUT TYPE="submit" VALUE="ok" NAME="button1" ID="foo">
def submit(value = nil, name = nil)
attributes = if (not value) or value.kind_of?(String)
{ "TYPE" => "submit", "VALUE" => value, "NAME" => name }
else
value["TYPE"] = "submit"
value
end
input(attributes)
end
# Generate a text field Input element, as a String.
#
# +name+ is the name of the input field. +value+ is its initial
# value. +size+ is the size of the input area. +maxlength+
# is the maximum length of input accepted.
#
# Alternatively, the attributes can be specified as a hash.
#
# text_field("name")
# # <INPUT TYPE="text" NAME="name" SIZE="40">
#
# text_field("name", "value")
# # <INPUT TYPE="text" NAME="name" VALUE="value" SIZE="40">
#
# text_field("name", "value", 80)
# # <INPUT TYPE="text" NAME="name" VALUE="value" SIZE="80">
#
# text_field("name", "value", 80, 200)
# # <INPUT TYPE="text" NAME="name" VALUE="value" SIZE="80" MAXLENGTH="200">
#
# text_field("NAME" => "name", "VALUE" => "value")
# # <INPUT TYPE="text" NAME="name" VALUE="value">
def text_field(name = "", value = nil, size = 40, maxlength = nil)
attributes = if name.kind_of?(String)
{ "TYPE" => "text", "NAME" => name, "VALUE" => value,
"SIZE" => size.to_s }
else
name["TYPE"] = "text"
name
end
attributes["MAXLENGTH"] = maxlength.to_s if maxlength
input(attributes)
end
# Generate a TextArea element, as a String.
#
# +name+ is the name of the textarea. +cols+ is the number of
# columns and +rows+ is the number of rows in the display.
#
# Alternatively, the attributes can be specified as a hash.
#
# The body is provided by the passed-in no-argument block
#
# textarea("name")
# # = textarea("NAME" => "name", "COLS" => 70, "ROWS" => 10)
#
# textarea("name", 40, 5)
# # = textarea("NAME" => "name", "COLS" => 40, "ROWS" => 5)
def textarea(name = "", cols = 70, rows = 10) # :yield:
attributes = if name.kind_of?(String)
{ "NAME" => name, "COLS" => cols.to_s,
"ROWS" => rows.to_s }
else
name
end
if block_given?
super(attributes){ yield }
else
super(attributes)
end
end
end # HtmlExtension
# Mixin module for HTML version 3 generation methods.
module Html3 # :nodoc:
# The DOCTYPE declaration for this version of HTML
def doctype
%|<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">|
end
# Initialise the HTML generation methods for this version.
def element_init
extend TagMaker
methods = ""
# - -
for element in %w[ A TT I B U STRIKE BIG SMALL SUB SUP EM STRONG
DFN CODE SAMP KBD VAR CITE FONT ADDRESS DIV center MAP
APPLET PRE XMP LISTING DL OL UL DIR MENU SELECT table TITLE
STYLE SCRIPT H1 H2 H3 H4 H5 H6 TEXTAREA FORM BLOCKQUOTE
CAPTION ]
methods += <<-BEGIN + nn_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
# - O EMPTY
for element in %w[ IMG BASE BASEFONT BR AREA LINK PARAM HR INPUT
ISINDEX META ]
methods += <<-BEGIN + nOE_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
# O O or - O
for element in %w[ HTML HEAD BODY P PLAINTEXT DT DD LI OPTION tr
th td ]
methods += <<-BEGIN + nO_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
eval(methods)
end
end # Html3
# Mixin module for HTML version 4 generation methods.
module Html4 # :nodoc:
# The DOCTYPE declaration for this version of HTML
def doctype
%|<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">|
end
# Initialise the HTML generation methods for this version.
def element_init
extend TagMaker
methods = ""
# - -
for element in %w[ TT I B BIG SMALL EM STRONG DFN CODE SAMP KBD
VAR CITE ABBR ACRONYM SUB SUP SPAN BDO ADDRESS DIV MAP OBJECT
H1 H2 H3 H4 H5 H6 PRE Q INS DEL DL OL UL LABEL SELECT OPTGROUP
FIELDSET LEGEND BUTTON TABLE TITLE STYLE SCRIPT NOSCRIPT
TEXTAREA FORM A BLOCKQUOTE CAPTION ]
methods += <<-BEGIN + nn_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
# - O EMPTY
for element in %w[ IMG BASE BR AREA LINK PARAM HR INPUT COL META ]
methods += <<-BEGIN + nOE_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
# O O or - O
for element in %w[ HTML BODY P DT DD LI OPTION THEAD TFOOT TBODY
COLGROUP TR TH TD HEAD]
methods += <<-BEGIN + nO_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
eval(methods)
end
end # Html4
# Mixin module for HTML version 4 transitional generation methods.
module Html4Tr # :nodoc:
# The DOCTYPE declaration for this version of HTML
def doctype
%|<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">|
end
# Initialise the HTML generation methods for this version.
def element_init
extend TagMaker
methods = ""
# - -
for element in %w[ TT I B U S STRIKE BIG SMALL EM STRONG DFN
CODE SAMP KBD VAR CITE ABBR ACRONYM FONT SUB SUP SPAN BDO
ADDRESS DIV CENTER MAP OBJECT APPLET H1 H2 H3 H4 H5 H6 PRE Q
INS DEL DL OL UL DIR MENU LABEL SELECT OPTGROUP FIELDSET
LEGEND BUTTON TABLE IFRAME NOFRAMES TITLE STYLE SCRIPT
NOSCRIPT TEXTAREA FORM A BLOCKQUOTE CAPTION ]
methods += <<-BEGIN + nn_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
# - O EMPTY
for element in %w[ IMG BASE BASEFONT BR AREA LINK PARAM HR INPUT
COL ISINDEX META ]
methods += <<-BEGIN + nOE_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
# O O or - O
for element in %w[ HTML BODY P DT DD LI OPTION THEAD TFOOT TBODY
COLGROUP TR TH TD HEAD ]
methods += <<-BEGIN + nO_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
eval(methods)
end
end # Html4Tr
# Mixin module for generating HTML version 4 with framesets.
module Html4Fr # :nodoc:
# The DOCTYPE declaration for this version of HTML
def doctype
%|<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">|
end
# Initialise the HTML generation methods for this version.
def element_init
methods = ""
# - -
for element in %w[ FRAMESET ]
methods += <<-BEGIN + nn_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
# - O EMPTY
for element in %w[ FRAME ]
methods += <<-BEGIN + nOE_element_def(element) + <<-END
def #{element.downcase}(attributes = {})
BEGIN
end
END
end
eval(methods)
end
end # Html4Fr
end
View git blame Copy permalink