Class: Sentiero::Analytics::ScrollDepthAnalyzer

Inherits:
Analyzer
  • Object
show all
Defined in:
lib/sentiero/analytics/scroll_depth_analyzer.rb

Overview

Aggregates per-URL scroll depth across sessions (avg depth, fold lines, distribution). Depth math lives in ScrollCollector; this drives it per URL.

Constant Summary collapse

MAX_URLS = 
200

Constants included from Events

Events::CUSTOM, Events::INCREMENTAL, Events::META, Events::SOURCE_INPUT, Events::SOURCE_MOUSE_INTERACTION, Events::SOURCE_SCROLL

Instance Attribute Summary

Attributes inherited from Analyzer

#store

Instance Method Summary collapse

Methods inherited from Analyzer

#initialize

Methods included from EntryAttribution

#earlier?, #first_meta_href, #same_origin?, #update_entry_candidate

Methods included from Bounded

#bounded_fetch, #bounded_increment

Methods included from Stats

#mean, #offset_ms, #percentile, #top_counts

Constructor Details

This class inherits a constructor from Sentiero::Analytics::Analyzer

Instance Method Details

#analyze(limit: nil, since: nil, until_time: nil) ⇒ Object 



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# File 'lib/sentiero/analytics/scroll_depth_analyzer.rb', line 13

def analyze(limit: nil, since: nil, until_time: nil)
  scroll = ScrollCollector.new(max_urls: MAX_URLS)

  _scanned, hit_cap = scan_sessions(limit: limit, since: since, until_time: until_time) do |_summary, _window_id, events|
    each_page_segment(events) do |url, segment, _anchor|
      scroll.observe(url, segment) if url
    end
    scroll.flush_window
  end

  {
    pages: scroll.pages,
    was_truncated: scroll.capped || hit_cap
  }
end