115 lines
2.7 KiB
Ruby
115 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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module Blobs
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class UnfoldPresenter < BlobPresenter
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include ActiveModel::Attributes
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include ActiveModel::AttributeAssignment
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include Gitlab::Utils::StrongMemoize
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presents ::Blob
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attribute :full, :boolean, default: false
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attribute :since, :integer, default: 1
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attribute :to, :integer, default: 1
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attribute :bottom, :boolean, default: false
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attribute :unfold, :boolean, default: true
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attribute :offset, :integer, default: 0
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attribute :indent, :integer, default: 0
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alias_method :full?, :full
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alias_method :bottom?, :bottom
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alias_method :unfold?, :unfold
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def initialize(blob, params)
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super(blob)
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self.attributes = params
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# Load all blob data first as we need to ensure they're all loaded first
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# so we can accurately show the rest of the diff when unfolding.
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load_all_blob_data
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handle_full_or_end!
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end
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# Returns an array of Gitlab::Diff::Line with match line added
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def diff_lines
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diff_lines = lines.map.with_index do |line, index|
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full_line = limited_blob_lines[index].delete("\n")
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Gitlab::Diff::Line.new(full_line, nil, nil, nil, nil, rich_text: line)
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end
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add_match_line(diff_lines)
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diff_lines
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end
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def lines
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strong_memoize(:lines) do
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limit(highlight(to: to).lines).map(&:html_safe)
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end
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end
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def match_line_text
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return '' if bottom?
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lines_length = lines.length - 1
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line = [since, lines_length].join(',')
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"@@ -#{line}+#{line} @@"
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end
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private
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def handle_full_or_end!
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return unless full? || to == -1
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self.since = 1 if full?
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self.attributes = {
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to: all_lines_size,
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bottom: false,
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unfold: false,
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offset: 0,
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indent: 0
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}
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end
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def all_lines_size
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strong_memoize(:all_lines_size) do
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all_lines.size
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end
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end
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def add_match_line(diff_lines)
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return unless unfold?
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return if bottom? && to >= all_lines_size
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if bottom? && to < all_lines_size
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old_pos = to - offset
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new_pos = to
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elsif since != 1
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old_pos = new_pos = since
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end
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# Match line is not needed when it reaches the top limit or bottom limit of the file.
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return unless new_pos
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match_line = Gitlab::Diff::Line.new(match_line_text, 'match', nil, old_pos, new_pos)
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bottom? ? diff_lines.push(match_line) : diff_lines.unshift(match_line)
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end
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def limited_blob_lines
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strong_memoize(:limited_blob_lines) do
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limit(all_lines)
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end
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end
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def limit(lines)
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return lines if full?
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lines[since - 1..to - 1] || []
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end
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end
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end
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