Module: OBF::External

Defined in:
lib/obf/external.rb

Defined Under Namespace

Classes: StructureError

Class Method Summary collapse

Class Method Details

.from_obf(obf_json_or_path, opts) ⇒ Object 



221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
 
# File 'lib/obf/external.rb', line 221

def self.from_obf(obf_json_or_path, opts)
  opts ||= {}
  obj = obf_json_or_path
  if obj.is_a?(String)
    obj = OBF::Utils.parse_obf(File.read(obf_json_or_path), opts)
  else
    obj = OBF::Utils.parse_obf(obf_json_or_path, opts)
  end
  
  ['images', 'sounds'].each do |type|
    (obj[type] || []).each do |item|
      if !item['data'] && item['path'] && opts['zipper']
        content_type = item['content_type']
        data = opts['zipper'].read(item['path'])
        str = "data:" + content_type
        str += ";base64," + Base64.strict_encode64(data)
        item['data'] = str
      end
      if item['path']
        opts[type] ||= {} 
        opts[type][item['path']] ||= item
      end
    end
  end
  
  obj['license'] = OBF::Utils.parse_license(obj['license'])
  obj
end

.from_obz(obz_path, opts) ⇒ Object 



296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
 
# File 'lib/obf/external.rb', line 296

def self.from_obz(obz_path, opts)
  boards = []
  images = []
  sounds = []
  OBF::Utils.load_zip(obz_path) do |zipper|
    obf_opts = {'zipper' => zipper, 'images' => {}, 'sounds' => {}, 'boards' => {}}
    manifest = JSON.parse(zipper.read('manifest.json'))
    obf_opts['manifest'] = manifest
    root = manifest['root']
    board = OBF::Utils.parse_obf(zipper.read(root), obf_opts)
    board['path'] = root
    unvisited_boards = [board]
    visited_boards = []
    while unvisited_boards.length > 0
      board_object = unvisited_boards.shift
      board_object['id'] ||= rand(9999).to_s + Time.now.to_i.to_s
      visited_boards << board_object

      board_object['buttons'].each do |button|
        if button['load_board']
          all_boards = visited_boards + unvisited_boards
          if all_boards.none?{|b| b['id'] == button['load_board']['id'] || b['path'] == button['load_board']['path'] }
            path = button['load_board']['path'] || (manifest['paths'] && manifest['paths']['boards'] && manifest['paths']['boards'][button['load_board']['id']])
            if path
              b = OBF::Utils.parse_obf(zipper.read(path), obf_opts)
              b['path'] = path
              button['load_board']['id'] = b['id']
              unvisited_boards << b
            end
          end
        end
      end
    end
    visited_boards.each do |board_object|
      res = from_obf(board_object, obf_opts)
      images += res['images'] || []
      sounds += res['sounds'] || []
      boards << res
    end
  end
  images.uniq!
  sounds.uniq!
  raise "image ids must be present and unique" unless images.map{|i| i['id'] }.uniq.length == images.length
  raise "sound ids must be present and unique" unless sounds.map{|i| i['id'] }.uniq.length == sounds.length
  # TODO: try to fix the problem where multiple images or sounds have the same id --
  # this involves reaching in and updating image and sound references on generated boards..
  res = {
    'boards' => boards,
    'images' => images,
    'sounds' => sounds
  }
  res
end

.to_obf(hash, dest_path, path_hash = nil) ⇒ Object 



2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
 
# File 'lib/obf/external.rb', line 2

def self.to_obf(hash, dest_path, path_hash=nil)
  if hash['boards']
    old_hash = hash
    hash = old_hash['boards'][0]
    hash['images'] = old_hash['images'] || []
    hash['sounds'] = old_hash['sounds'] || []
    path_hash = nil
  end
  
  res = OBF::Utils.obf_shell
  res['id'] = hash['id']
  res['locale'] = hash['locale'] || 'en'
  res['format'] = OBF::OBF::FORMAT
  res['name'] = hash['name']
  res['default_layout'] = hash['default_layout'] || 'landscape'
  res['url'] = hash['url']
  res['data_url'] = hash['data_url']

  res['default_locale'] = hash['default_locale'] if hash['default_locale']
  res['label_locale'] = hash['label_locale'] if hash['label_locale']
  res['vocalization_locale'] = hash['vocalization_locale'] if hash['vocalization_locale']
  
  res['description_html'] = hash['description_html']
  res['protected_content_user_identifier'] = hash['protected_content_user_identifier'] if hash['protected_content_user_identifier']
  res['license'] = OBF::Utils.parse_license(hash['license'])
  hash.each do |key, val|
    if key && key.match(/^ext_/)
      res[key] = val
    end
  end
  grid = []
  
  images = []
  sounds = []
  
  res['buttons'] = []
  buttons = hash['buttons'] #board.settings['buttons']
  button_count = buttons.length
  
  buttons.each_with_index do |original_button, idx|
    button = {
      'id' => original_button['id'],
      'label' => original_button['label'],
      'vocalization' => original_button['vocalization'],
      'action' => original_button['action'],
      'actions' => original_button['actions'],
      'left' => original_button['left'],
      'top' => original_button['top'],
      'width' => original_button['width'],
      'height' => original_button['height'],
      'border_color' => OBF::Utils.fix_color(original_button['border_color'] || "#aaa", 'rgb'),
      'background_color' => OBF::Utils.fix_color(original_button['background_color'] || "#fff", 'rgb')
    }
    if original_button['load_board']
      button['load_board'] = {
        'id' => original_button['load_board']['id'],
        'url' => original_button['load_board']['url'],
        'data_url' => original_button['load_board']['data_url']
      }
      if path_hash && path_hash['included_boards'] && path_hash['included_boards'][original_button['load_board']['id']]
        button['load_board']['path'] = "board_#{original_button['load_board']['id']}.obf"
      end
    end
    if original_button['translations']
      original_button['translations'].each do |loc, hash|
        next unless hash.is_a?(Hash)
        button['translations'] ||= {}
        button['translations'][loc] ||= {}
        button['translations'][loc]['label'] = hash['label'].to_s if hash['label']
        button['translations'][loc]['vocalization'] = hash['vocalization'].to_s if hash['vocalization']
        (hash['inflections'] || {}).each do |key, val|
          if key.match(/^ext_/)
            button['translations'][loc]['inflections'] ||= {}
            button['translations'][loc]['inflections'][key] = val
          else
            button['translations'][loc]['inflections'] ||= {}
            button['translations'][loc]['inflections'][key] = val.to_s
          end
        end
        hash.keys.each do |key|
          button['translations'][loc][key] = hash[key] if key.to_s.match(/^ext_/)
        end
      end
    end
    if original_button['hidden']
      button['hidden'] = original_button['hidden']
    end
    if original_button['url']
      button['url'] = original_button['url']
    end
    original_button.each do|key, val|
      if key.match(/^ext_/)
        button[key] = val
      end
    end

    if original_button['image_id'] && hash['images']
      image = hash['images'].detect{|i| i['id'] == original_button['image_id']}
      if image
        images << image
        button['image_id'] = image['id']
      end
    end
    if original_button['sound_id']
      sound = hash['sounds'].detect{|s| s['id'] == original_button['sound_id']}
      if sound
        sounds << sound
        button['sound_id'] = sound['id']
      end
    end
    res['buttons'] << trim_empties(button)
    OBF::Utils.update_current_progress(idx.to_f / button_count.to_f)
  end

  images.each do |original_image|
    image = {
      'id' => original_image['id'],
      'width' => original_image['width'],
      'height' => original_image['height'],
      'license' => OBF::Utils.parse_license(original_image['license']),
      'url' => original_image['url'],
      'data' => original_image['data'],
      'data_url' => original_image['data_url'],
      'content_type' => original_image['content_type']
    }
    if !path_hash
      image['data'] ||= OBF::Utils.image_base64(image['url']) if image['url']
      if image['data'] && (!image['content_type'] || !image['width'] || !image['height'])
        attrs = OBF::Utils.image_attrs(image['data'])
        image['content_type'] ||= attrs['content_type']
        image['width'] ||= attrs['width']
        image['height'] ||= attrs['height']
      end
    else
      if path_hash['images'] && path_hash['images'][image['id']]
        image['path'] = path_hash['images'][image['id']]['path']
        image['content_type'] ||= path_hash['images'][image['id']]['content_type']
        image['width'] ||= path_hash['images'][image['id']]['width']
        image['height'] ||= path_hash['images'][image['id']]['height']
      else
        image_fetch = OBF::Utils.image_raw(image['data'] || image['url'])
        if image_fetch
          if !image['content_type'] || !image['width'] || !image['height']
            attrs = OBF::Utils.image_attrs(image_fetch['data'])
            image['content_type'] ||= image_fetch['content_type'] || attrs['content_type']
            image['width'] ||= attrs['width']
            image['height'] ||= attrs['height']
          end
          zip_path = "images/image_#{image['id']}#{image_fetch['extension']}"
          path_hash['images'] ||= {}
          path_hash['images'][image['id']] = {
            'path' => zip_path,
            'content_type' => image['content_type'],
            'width' => image['width'],
            'height' => image['height']
          }
          path_hash['zip'].add(zip_path, image_fetch['data'])
          image['path'] = zip_path
        end
      end
    end
    res['images'] << trim_empties(image)
  end
  
  sounds.each do |original_sound|
    sound = {
      'id' => original_sound['id'],
      'duration' => original_sound['duration'],
      'license' => OBF::Utils.parse_license(original_sound['license']),
      'url' => original_sound['url'],
      'data' => original_sound['data'],
      'data_url' => original_sound['data_url'],
      'content_type' => original_sound['content_type']
    }
    if !path_hash
      sound['data'] = OBF::Utils.sound_base64(sound['url']) if sound['url']
    else
      if path_hash['sounds'] && path_hash['sounds'][sound['id']]
        sound['path'] = path_hash['sounds'][sound['id']]['path']
      else
        sound_fetch = OBF::Utils.sound_raw(sound['url'] || sound['data'])
        if sound_fetch
          zip_path = "sounds/sound_#{sound['id']}#{sound_fetch['extension']}"
          path_hash['sounds'] ||= {}
          path_hash['sounds'][sound['id']] = {
            'path' => zip_path
          }
          path_hash['zip'].add(zip_path, sound_fetch['data'])
          sound['path'] = zip_path
        end
      end
      sound['path'] = zip_path
    end
    
    res['sounds'] << trim_empties(sound)
  end

  res['grid'] = OBF::Utils.parse_grid(hash['grid']) # TODO: more robust parsing here
  if path_hash
    zip_path = "board_#{res['id']}.obf"
    path_hash['boards'] ||= {}
    path_hash['boards'][res['id']] = {
      'path' => zip_path
    }
    path_hash['zip'].add(zip_path, JSON.pretty_generate(res))
  else
    File.open(dest_path, 'w') {|f| f.write(JSON.pretty_generate(res)) }
  end
  return dest_path
end

.to_obz(content, dest_path, opts) ⇒ Object 



250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
 
# File 'lib/obf/external.rb', line 250

def self.to_obz(content, dest_path, opts)
  if content['id']
    old_content = content
    content = {
      'boards' => [old_content],
      'images' => old_content['images'] || [],
      'sounds' => old_content['sounds'] || []
    }
  end
  
  paths = {}
  boards = content['boards']
  content['images'] ||= boards.map{|b| b['images'] }.flatten.uniq
  content['sounds'] ||= boards.map{|b| b['sounds'] }.flatten.uniq
  root_board = boards[0]
  OBF::Utils.build_zip(dest_path) do |zipper|
    paths['zip'] = zipper
    paths['included_boards'] = {}
    boards.each do |b|
      paths['included_boards'][b['id']] = b
    end
    boards.each do |b|
      b = paths['included_boards'][b['id']]
      if b
        b['images'] = content['images'] || []
        b['sounds'] = content['sounds'] || []
        to_obf(b, nil, paths)
      end
    end
    manifest = {
      'format' => OBF::OBF::FORMAT,
      'root' => paths['boards'][root_board['id']]['path'],
      'paths' => {}
    }
    ['images', 'sounds', 'boards'].each do |type|
      manifest['paths'][type] = {}
      (paths[type] || {}).each do |id, opts|
        manifest['paths'][type][id] = opts['path']
      end
    end
    
    zipper.add('manifest.json', JSON.pretty_generate(manifest))
  end
  return dest_path
end

.to_pdf(board, dest_path, opts) ⇒ Object 



350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
 
# File 'lib/obf/external.rb', line 350

def self.to_pdf(board, dest_path, opts)
  if board && board['boards']
    opts['packet'] = true
  end
  tmp_path = OBF::Utils.temp_path("stash")
  if opts['packet']
    OBF::Utils.as_progress_percent(0, 0.3) do
      OBF::External.to_obz(board, tmp_path, opts)  
    end
    OBF::Utils.as_progress_percent(0.3, 1.0) do
      OBF::OBZ.to_pdf(tmp_path, dest_path, opts)
    end
  else
    OBF::Utils.as_progress_percent(0, 0.5) do
      self.to_obf(board, tmp_path)  
    end
    OBF::Utils.as_progress_percent(0.5, 1.0) do
      OBF::OBF.to_pdf(tmp_path, dest_path, opts)
    end
  end
  File.unlink(tmp_path) if File.exist?(tmp_path)
  dest_path
end

.to_png(board, dest_path, opts) ⇒ Object 



374
375
376
377
378
379
380
381
382
383
384
 
# File 'lib/obf/external.rb', line 374

def self.to_png(board, dest_path, opts)
  tmp_path = OBF::Utils.temp_path("stash")
  OBF::Utils.as_progress_percent(0, 0.5) do
    self.to_pdf(board, tmp_path, opts)
  end
  OBF::Utils.as_progress_percent(0.5, 1.0) do
    OBF::PDF.to_png(tmp_path, dest_path)
  end
  File.unlink(tmp_path) if File.exist?(tmp_path)
  dest_path
end

.trim_empties(hash) ⇒ Object 



213
214
215
216
217
218
219
 
# File 'lib/obf/external.rb', line 213

def self.trim_empties(hash)
  new_hash = {}
  hash.each do |key, val|
    new_hash[key] = val if val != nil
  end
  new_hash
end