Class: Utopia::Tags::Gallery
- Inherits:
-
Object
- Object
- Utopia::Tags::Gallery
show all
- Defined in:
- lib/utopia/tags/gallery.rb
Defined Under Namespace
Modules: Processes
Classes: ImagePath
Constant Summary
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- CACHE_DIR =
"_cache"
- PROCESSES =
{
:pdf_thumbnail => Processes::DocumentThumbnail.new([300, 300]),
:photo_thumbnail => Processes::PhotoThumbnail.new([300, 300]),
:large => Processes::Thumbnail.new([800, 800])
}
Class Method Summary
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Instance Method Summary
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Constructor Details
#initialize(node, path) ⇒ Gallery
Returns a new instance of Gallery.
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# File 'lib/utopia/tags/gallery.rb', line 130
def initialize(node, path)
@node = node
@path = path
end
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Class Method Details
.call(transaction, state) ⇒ Object
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# File 'lib/utopia/tags/gallery.rb', line 207
def self.call(transaction, state)
gallery = new(transaction.end_tags[-2].node, Utopia::Path.create(state["path"] || "./"))
metadata = gallery.metadata
metadata.default = {}
tag_name = state["tag"] || "img"
options = {}
options[:process] = state["process"]
options[:filter] = Regexp.new("(#{state["filetypes"]})$", "i") if state["filetypes"]
filter = Regexp.new(state["filter"], Regexp::IGNORECASE) if state["filter"]
transaction.tag("div", "class" => "gallery") do |node|
images = gallery.images(options).sort do |a, b|
if (metadata[a.original.basename]["order"] && metadata[b.original.basename]["order"])
metadata[a.original.basename]["order"] <=> metadata[b.original.basename]["order"]
else
a.original.basename <=> b.original.basename
end
end
images.each do |path|
next if filter and !filter.match(path.original.basename)
alt_text = metadata[path.original.basename]["caption"]
transaction.tag(tag_name, "src" => path, "alt" => alt_text)
end
end
end
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Instance Method Details
#images(options = {}) ⇒ Object
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# File 'lib/utopia/tags/gallery.rb', line 145
def images(options = {})
options[:filter] ||= /(jpg|png)$/i
paths = []
local_path = @node.local_path(@path)
Dir.entries(local_path).each do |filename|
next unless filename.match(options[:filter])
fullpath = File.join(local_path, filename)
paths << ImagePath.new(@path + filename)
end
if options[:process]
paths.each do |path|
processed_image(path, options[:process])
end
end
return paths
end
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# File 'lib/utopia/tags/gallery.rb', line 135
def metadata
metadata_path = @node.local_path(@path + "gallery.yaml")
if File.exist? metadata_path
return YAML::load(File.read(metadata_path))
else
return {}
end
end
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#processed_image(image_path, processes) ⇒ Object
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# File 'lib/utopia/tags/gallery.rb', line 168
def processed_image(image_path, processes)
local_cache_path = @node.local_path(image_path.cache_root)
unless File.exist? local_cache_path
FileUtils.mkdir local_cache_path
end
local_original_path = @node.local_path(image_path.original)
if processes.kind_of? String
processes = processes.split(",").collect{|p| p.split(":")}
end
processes.each do |process_name, extension|
process_name = process_name.to_sym
process = PROCESSES[process_name]
extension ||= process.default_extension(image_path)
image_path.extensions[process_name] = extension if extension
local_processed_path = @node.local_path(image_path.processed(process_name))
unless File.exists? local_processed_path
image = Magick::ImageList.new(local_original_path)
image.scene = 0
processed_image = process.call(image)
processed_image.write(local_processed_path)
processed_image = nil
GC.start if defined? GC
end
end
end
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