Class: Redmine::Helpers::Diff
- Inherits:
-
Object
- Object
- Redmine::Helpers::Diff
- Includes:
- ActionView::Helpers::TagHelper, ActionView::Helpers::TextHelper, ERB::Util
- Defined in:
- lib/redmine/helpers/diff.rb
Direct Known Subclasses
Instance Attribute Summary collapse
-
#diff ⇒ Object
readonly
Returns the value of attribute diff.
-
#words ⇒ Object
readonly
Returns the value of attribute words.
Instance Method Summary collapse
-
#initialize(content_to, content_from) ⇒ Diff
constructor
A new instance of Diff.
- #to_html ⇒ Object
Constructor Details
#initialize(content_to, content_from) ⇒ Diff
Returns a new instance of Diff.
26 27 28 29 30 31 32 |
# File 'lib/redmine/helpers/diff.rb', line 26 def initialize(content_to, content_from) @words = content_to.to_s.split(/(\s+)/) @words = @words.select {|word| word != ' '} words_from = content_from.to_s.split(/(\s+)/) words_from = words_from.select {|word| word != ' '} @diff = words_from.diff @words end |
Instance Attribute Details
#diff ⇒ Object (readonly)
Returns the value of attribute diff.
24 25 26 |
# File 'lib/redmine/helpers/diff.rb', line 24 def diff @diff end |
#words ⇒ Object (readonly)
Returns the value of attribute words.
24 25 26 |
# File 'lib/redmine/helpers/diff.rb', line 24 def words @words end |
Instance Method Details
#to_html ⇒ Object
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 62 63 64 65 66 67 68 69 |
# File 'lib/redmine/helpers/diff.rb', line 34 def to_html words = self.words.collect{|word| h(word)} words_add = 0 words_del = 0 dels = 0 del_off = 0 diff.diffs.each do |diff| add_at = nil add_to = nil del_at = nil deleted = "" diff.each do |change| pos = change[1] if change[0] == "+" add_at = pos + dels unless add_at add_to = pos + dels words_add += 1 else del_at = pos unless del_at deleted << ' ' + h(change[2]) words_del += 1 end end if add_at words[add_at] = '<span class="diff_in">' + words[add_at] words[add_to] = words[add_to] + '</span>' end if del_at words.insert del_at - del_off + dels + words_add, '<span class="diff_out">' + deleted + '</span>' dels += 1 del_off += words_del words_del = 0 end end words.join(' ') end |