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: ImageMetadata, ImagePath
Constant Summary
collapse
- CACHE_DIR =
"_cache"
- PROCESSES =
{
:pdf_thumbnail => Processes::DocumentThumbnail.new([300, 300]),
:photo_thumbnail => Processes::PhotoThumbnail.new([300, 300]),
:large => Processes::Thumbnail.new([800, 800]),
:square_thumbnail => Processes::CropThumbnail.new([300, 300]),
:thumbnail => Processes::Thumbnail.new([300, 300])
}
Class Method Summary
collapse
Instance Method Summary
collapse
Constructor Details
#initialize(node, path) ⇒ Gallery
Returns a new instance of Gallery.
165
166
167
168
|
# File 'lib/utopia/tags/gallery.rb', line 165
def initialize(node, path)
@node = node
@path = path
end
|
Class Method Details
.call(transaction, state) ⇒ Object
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
# File 'lib/utopia/tags/gallery.rb', line 242
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"
gallery_class = state["class"] || "gallery"
options = {}
options[:process] = state["process"]
options[:filter] = Regexp.new("(#{state["filetypes"]})$", "i") if state["filetypes"]
filter = Regexp.new(state["filter"], Regexp::IGNORECASE) if state["filter"]
transaction.tag("div", "class" => gallery_class) do |node|
images = gallery.images(options).sort do |a, b|
if (metadata[a.original.basename]["order"] && metadata[b.original.basename]["order"])
metadata[a.original.basename]["order"] <=> metadata[b.original.basename]["order"]
else
a.original.basename <=> b.original.basename
end
end
images.each do |path|
next if filter and !filter.match(path.original.basename)
alt = ImageMetadata.new(metadata[path.original.basename])
transaction.tag(tag_name, "src" => path, "alt" => alt)
end
end
end
|
Instance Method Details
#images(options = {}) ⇒ Object
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
# File 'lib/utopia/tags/gallery.rb', line 180
def images(options = {})
options[:filter] ||= /(jpg|png)$/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
|
170
171
172
173
174
175
176
177
178
|
# File 'lib/utopia/tags/gallery.rb', line 170
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
|
#processed_image(image_path, processes) ⇒ Object
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
# File 'lib/utopia/tags/gallery.rb', line 203
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
|