1 ## deleting sandboxes
  2 
  3 scenario deleting-sandboxes [
  4   local-scope
  5   trace-until 100/app  # trace too long
  6   assume-screen 100/width, 15/height
  7   assume-resources [
  8   ]
  9   env:&:environment <- new-programming-environment resources, screen, []
 10   # run a few commands
 11   assume-console [
 12     left-click 1, 80
 13     type [divide-with-remainder 11, 3]
 14     press F4
 15     type [add 2, 2]
 16     press F4
 17   ]
 18   event-loop screen, console, env, resources
 19   screen-should-contain [
 20     .                                                                                 run (F4)           .
 21     .                                                  ╎                                                 .
 22     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.
 23     .                                                  ╎0   edit          copy            delete         .
 24     .                                                  ╎add 2, 2                                         .
 25     .                                                  ╎4                                                .
 26     .                                                  ╎─────────────────────────────────────────────────.
 27     .                                                  ╎1   edit          copy            delete         .
 28     .                                                  ╎divide-with-remainder 11, 3                      .
 29     .                                                  ╎3                                                .
 30     .                                                  ╎2                                                .
 31     .                                                  ╎─────────────────────────────────────────────────.
 32     .                                                  ╎                                                 .
 33   ]
 34   # delete second sandbox by clicking on left edge of 'delete' button
 35   assume-console [
 36     left-click 7, 85
 37   ]
 38   run [
 39     event-loop screen, console, env, resources
 40   ]
 41   screen-should-contain [
 42     .                                                                                 run (F4)           .
 43     .                                                  ╎                                                 .
 44     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.
 45     .                                                  ╎0   edit          copy            delete         .
 46     .                                                  ╎add 2, 2                                         .
 47     .                                                  ╎4                                                .
 48     .                                                  ╎─────────────────────────────────────────────────.
 49     .                                                  ╎                                                 .
 50     .                                                  ╎                                                 .
 51   ]
 52   # delete first sandbox by clicking at right edge of 'delete' button
 53   assume-console [
 54     left-click 3, 99
 55   ]
 56   run [
 57     event-loop screen, console, env, resources
 58   ]
 59   screen-should-contain [
 60     .                                                                                 run (F4)           .
 61     .                                                  ╎                                                 .
 62     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.
 63     .                                                  ╎                                                 .
 64     .                                                  ╎                                                 .
 65   ]
 66 ]
 67 
 68 after <global-touch> [
 69   # support 'delete' button
 70   {
 71     delete?:bool <- should-attempt-delete? click-row, click-column, env
 72     break-unless delete?
 73     delete?, env <- try-delete-sandbox click-row, env
 74     break-unless delete?
 75     hide-screen screen
 76     screen <- render-sandbox-side screen, env, render
 77     screen <- update-cursor screen, recipes, current-sandbox, sandbox-in-focus?, env
 78     show-screen screen
 79     loop +next-event
 80   }
 81 ]
 82 
 83 # some preconditions for attempting to delete a sandbox
 84 def should-attempt-delete? click-row:num, click-column:num, env:&:environment -> result:bool [
 85   local-scope
 86   load-ingredients
 87   # are we below the sandbox editor?
 88   click-sandbox-area?:bool <- click-on-sandbox-area? click-row, click-column, env
 89   return-unless click-sandbox-area?, 0/false
 90   # narrower, is the click in the columns spanning the 'copy' button?
 91   first-sandbox:&:editor <- get *env, current-sandbox:offset
 92   assert first-sandbox, [!!]
 93   sandbox-left-margin:num <- get *first-sandbox, left:offset
 94   sandbox-right-margin:num <- get *first-sandbox, right:offset
 95   _, _, _, _, delete-button-left:num <- sandbox-menu-columns sandbox-left-margin, sandbox-right-margin
 96   result <- within-range? click-column, delete-button-left, sandbox-right-margin
 97 ]
 98 
 99 def try-delete-sandbox click-row:num, env:&:environment -> clicked-on-delete-button?:bool, env:&:environment [
100   local-scope
101   load-ingredients
102   # identify the sandbox to delete, if the click was actually on the 'delete' button
103   sandbox:&:sandbox <- find-sandbox env, click-row
104   return-unless sandbox, 0/false
105   clicked-on-delete-button? <- copy 1/true
106   env <- delete-sandbox env, sandbox
107 ]
108 
109 def delete-sandbox env:&:environment, sandbox:&:sandbox -> env:&:environment [
110   local-scope
111   load-ingredients
112   curr-sandbox:&:sandbox <- get *env, sandbox:offset
113   first-sandbox?:bool <- equal curr-sandbox, sandbox
114   {
115     # first sandbox? pop
116     break-unless first-sandbox?
117     next-sandbox:&:sandbox <- get *curr-sandbox, next-sandbox:offset
118     *env <- put *env, sandbox:offset, next-sandbox
119   }
120   {
121     # not first sandbox?
122     break-if first-sandbox?
123     prev-sandbox:&:sandbox <- copy curr-sandbox
124     curr-sandbox <- get *curr-sandbox, next-sandbox:offset
125     {
126       assert curr-sandbox, [sandbox not found! something is wrong.]
127       found?:bool <- equal curr-sandbox, sandbox
128       break-if found?
129       prev-sandbox <- copy curr-sandbox
130       curr-sandbox <- get *curr-sandbox, next-sandbox:offset
131       loop
132     }
133     # snip sandbox out of its list
134     next-sandbox:&:sandbox <- get *curr-sandbox, next-sandbox:offset
135     *prev-sandbox <- put *prev-sandbox, next-sandbox:offset, next-sandbox
136   }
137   # update sandbox count
138   sandbox-count:num <- get *env, number-of-sandboxes:offset
139   sandbox-count <- subtract sandbox-count, 1
140   *env <- put *env, number-of-sandboxes:offset, sandbox-count
141   # reset scroll if deleted sandbox was last
142   {
143     break-if next-sandbox
144     render-from:num <- get *env, render-from:offset
145     reset-scroll?:bool <- equal render-from, sandbox-count
146     break-unless reset-scroll?
147     *env <- put *env, render-from:offset, -1
148   }
149 ]
150 
151 scenario deleting-sandbox-after-scroll [
152   local-scope
153   trace-until 100/app  # trace too long
154   assume-screen 100/width, 10/height
155   # initialize environment
156   assume-resources [
157   ]
158   env:&:environment <- new-programming-environment resources, screen, []
159   render-all screen, env, render
160   # create 2 sandboxes and scroll to second
161   assume-console [
162     press ctrl-n
163     type [add 2, 2]
164     press F4
165     type [add 1, 1]
166     press F4
167     press page-down
168   ]
169   event-loop screen, console, env, resources
170   screen-should-contain [
171     .                                                                                 run (F4)           .
172     .                                                  ╎─────────────────────────────────────────────────.
173     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .
174     .                                                  ╎add 1, 1                                         .
175     .                                                  ╎2                                                .
176     .                                                  ╎─────────────────────────────────────────────────.
177     .                                                  ╎1   edit          copy            delete         .
178   ]
179   # delete the second sandbox
180   assume-console [
181     left-click 6, 99
182   ]
183   run [
184     event-loop screen, console, env, resources
185   ]
186   # second sandbox shows in editor; scroll resets to display first sandbox
187   screen-should-contain [
188     .                                                                                 run (F4)           .
189     .                                                  ╎─────────────────────────────────────────────────.
190     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .
191     .                                                  ╎add 1, 1                                         .
192     .                                                  ╎2                                                .
193     .                                                  ╎─────────────────────────────────────────────────.
194     .                                                  ╎                                                 .
195   ]
196 ]
197 
198 scenario deleting-top-sandbox-after-scroll [
199   local-scope
200   trace-until 100/app  # trace too long
201   assume-screen 100/width, 10/height
202   # initialize environment
203   assume-resources [
204   ]
205   env:&:environment <- new-programming-environment resources, screen, []
206   render-all screen, env, render
207   # create 2 sandboxes and scroll to second
208   assume-console [
209     press ctrl-n
210     type [add 2, 2]
211     press F4
212     type [add 1, 1]
213     press F4
214     press page-down
215   ]
216   event-loop screen, console, env, resources
217   screen-should-contain [
218     .                                                                                 run (F4)           .
219     .                                                  ╎─────────────────────────────────────────────────.
220     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .
221     .                                                  ╎add 1, 1                                         .
222     .                                                  ╎2                                                .
223     .                                                  ╎─────────────────────────────────────────────────.
224     .                                                  ╎1   edit          copy            delete         .
225   ]
226   # delete the second sandbox
227   assume-console [
228     left-click 2, 99
229   ]
230   run [
231     event-loop screen, console, env, resources
232   ]
233   # second sandbox shows in editor; scroll resets to display first sandbox
234   screen-should-contain [
235     .                                                                                 run (F4)           .
236     .                                                  ╎─────────────────────────────────────────────────.
237     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .
238     .                                                  ╎add 2, 2                                         .
239     .                                                  ╎4                                                .
240     .                                                  ╎─────────────────────────────────────────────────.
241     .                                                  ╎                                                 .
242   ]
243 ]
244 
245 scenario deleting-final-sandbox-after-scroll [
246   local-scope
247   trace-until 100/app  # trace too long
248   assume-screen 100/width, 10/height
249   # initialize environment
250   assume-resources [
251   ]
252   env:&:environment <- new-programming-environment resources, screen, []
253   render-all screen, env, render
254   # create 2 sandboxes and scroll to second
255   assume-console [
256     press ctrl-n
257     type [add 2, 2]
258     press F4
259     type [add 1, 1]
260     press F4
261     press page-down
262     press page-down
263   ]
264   event-loop screen, console, env, resources
265   screen-should-contain [
266     .                                                                                 run (F4)           .
267     .                                                  ╎─────────────────────────────────────────────────.
268     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎1   edit          copy            delete         .
269     .                                                  ╎add 2, 2                                         .
270     .                                                  ╎4                                                .
271     .                                                  ╎─────────────────────────────────────────────────.
272     .                                                  ╎                                                 .
273   ]
274   # delete the second sandbox
275   assume-console [
276     left-click 2, 99
277   ]
278   run [
279     event-loop screen, console, env, resources
280   ]
281   # implicitly scroll up to first sandbox
282   screen-should-contain [
283     .                                                                                 run (F4)           .
284     .                                                  ╎                                                 .
285     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.
286     .                                                  ╎0   edit          copy            delete         .
287     .                                                  ╎add 1, 1                                         .
288     .                                                  ╎2                                                .
289     .                                                  ╎─────────────────────────────────────────────────.
290     .                                                  ╎                                                 .
291   ]
292 ]
293 
294 scenario deleting-updates-sandbox-count [
295   local-scope
296   trace-until 100/app  # trace too long
297   assume-screen 100/width, 10/height
298   # initialize environment
299   assume-resources [
300   ]
301   env:&:environment <- new-programming-environment resources, screen, []
302   render-all screen, env, render
303   # create 2 sandboxes
304   assume-console [
305     press ctrl-n
306     type [add 2, 2]
307     press F4
308     type [add 1, 1]
309     press F4
310   ]
311   event-loop screen, console, env, resources
312   screen-should-contain [
313     .                                                                                 run (F4)           .
314     .                                                  ╎                                                 .
315     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.
316     .                                                  ╎0   edit          copy            delete         .
317     .                                                  ╎add 1, 1                                         .
318     .                                                  ╎2                                                .
319     .                                                  ╎─────────────────────────────────────────────────.
320     .                                                  ╎1   edit          copy            delete         .
321     .                                                  ╎add 2, 2                                         .
322     .                                                  ╎4                                                .
323   ]
324   # delete the second sandbox, then try to scroll down twice
325   assume-console [
326     left-click 3, 99
327     press page-down
328     press page-down
329   ]
330   run [
331     event-loop screen, console, env, resources
332   ]
333   # shouldn't go past last sandbox
334   screen-should-contain [
335     .                                                                                 run (F4)           .
336     .                                                  ╎─────────────────────────────────────────────────.
337     .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .
338     .                                                  ╎add 2, 2                                         .
339     .                                                  ╎4                                                .
340     .                                                  ╎─────────────────────────────────────────────────.
341     .                                                  ╎                                                 .
342   ]
343 ]