Class: PowerPointPptx::Document

Inherits:
Object
  • Object
show all
Defined in:
lib/power_point_pptx/document.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ Document

Returns a new instance of Document.



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# File 'lib/power_point_pptx/document.rb', line 14

def initialize(file)
  @files = Zip::File.open_buffer(file)
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/power_point_pptx/document.rb', line 12

def files
  @files
end

Class Method Details

.open(file) ⇒ Object 



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# File 'lib/power_point_pptx/document.rb', line 8

def self.open(file)
  new(file)
end

Instance Method Details

#save ⇒ Object 



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# File 'lib/power_point_pptx/document.rb', line 46

def save
  new_zip_file_path = Tempfile.new("new_pptx").path

  Zip::OutputStream.open(new_zip_file_path) do |new_zip_file|
    @files.each do |entry|
      slide = @slides.find { |slide| slide.entry_name == entry.name }
      new_zip_file.put_next_entry(entry.name)
      if slide.nil?
        new_zip_file.write(entry.get_input_stream.read)
      else
        new_zip_file.write(slide.xml)
      end
    end
  end

  File.new(new_zip_file_path)
end

#slides ⇒ Object 



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# File 'lib/power_point_pptx/document.rb', line 18

def slides
  @slides = []
  @files
    .select { |entry| entry.name.include?("ppt/slides/slide") }
    .map do |entry|
      @slides << Slide.new(entry, entry.name)
    end

  @slides
end

#stream ⇒ Object 



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# File 'lib/power_point_pptx/document.rb', line 29

def stream
  stream = Zip::OutputStream.write_buffer do |out|
    @files.each do |entry|
      slide = @slides.find { |slide| slide.entry_name == entry.name }
      out.put_next_entry(entry.name)
      if slide.nil?
        out.write(entry.get_input_stream.read)
      else
        out.write(slide.xml)
      end
    end
  end

  stream.rewind
  stream
end