mirror of
https://github.com/opf/openproject.git
synced 2026-06-14 03:30:14 +00:00
Oliver Günther
111 lines
3.8 KiB
Ruby
111 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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#-- copyright
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# OpenProject is an open source project management software.
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# Copyright (C) the OpenProject GmbH
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# See COPYRIGHT and LICENSE files for more details.
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#++
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module Redmine
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module Helpers
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class Diff
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include ERB::Util
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include ActionView::Helpers::TagHelper
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include ActionView::Helpers::TextHelper
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include ActionView::Helpers::OutputSafetyHelper
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attr_reader :diff, :words
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def initialize(content_to, content_from)
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@words = content_to.to_s.split(/(\s+)/)
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@words = @words.reject { |word| word == " " }
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words_from = content_from.to_s.split(/(\s+)/)
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words_from = words_from.reject { |word| word == " " }
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@diff = words_from.diff @words
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end
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def to_html # rubocop:disable Metrics/AbcSize,Metrics/PerceivedComplexity
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words = self.words.map { |word| h(word) }
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words_add = 0
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words_del = 0
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dels = 0
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del_off = 0
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diff.diffs.each do |diff|
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add_at = nil
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add_to = nil
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del_at = nil
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deleted_words = []
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diff.each do |change|
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pos = change[1]
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if change[0] == "+"
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add_at ||= pos + dels
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add_to = pos + dels
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words_add += 1
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else
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del_at ||= pos
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deleted_words << h(change[2])
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words_del += 1
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end
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end
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if add_at
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begin_label = content_tag(:label, WorkPackage.human_attribute_name(:begin_insertion), class: "sr-only")
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end_label = content_tag(:label, WorkPackage.human_attribute_name(:end_insertion), class: "sr-only")
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inserted = safe_join(words[add_at..add_to], " ")
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ins_tag = tag.ins(inserted, class: "diffmod")
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words[add_at] = begin_label + ins_tag + end_label
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((add_at + 1)..add_to).each { |i| words[i] = "" }
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end
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if del_at
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begin_label = content_tag(:label, WorkPackage.human_attribute_name(:begin_deletion), class: "sr-only")
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end_label = content_tag(:label, WorkPackage.human_attribute_name(:end_deletion), class: "sr-only")
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deleted = safe_join(["", *deleted_words], " ")
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del_tag = content_tag(:del, deleted, class: "diffmod")
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words.insert del_at - del_off + dels + words_add, begin_label + del_tag + end_label
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dels += 1
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del_off += words_del
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words_del = 0
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end
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end
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words.join(" ")
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end
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def additions
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added_changes = []
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if @diff.diffs.try(:first).try(:any?)
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@diff.diffs.first.each do |change|
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if change.first == "+"
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added_changes << change.third
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end
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end
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end
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added_changes
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end
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end
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end
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end
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