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<span class="SalientComment">## deleting sandboxes</span>
<span class="muScenario">scenario</span> deleting-sandboxes [
<span class="Constant">local-scope</span>
trace-until <span class="Constant">100/app</span> <span class="Comment"># trace too long</span>
assume-screen <span class="Constant">100/width</span>, <span class="Constant">15/height</span>
env:&:environment <span class="Special"><-</span> new-programming-environment screen, <span class="Constant">[]</span>, <span class="Constant">[]</span>
<span class="Comment"># run a few commands</span>
assume-console [
left-click<span class="Constant"> 1</span>,<span class="Constant"> 80</span>
type <span class="Constant">[divide-with-remainder 11, 3]</span>
press F4
type <span class="Constant">[add 2, 2]</span>
press F4
]
event-loop screen, console, env
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎ .</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 2, 2 .</span>
<span class="Constant"> . ╎4 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎1 edit copy delete .</span>
<span class="Constant"> . ╎divide-with-remainder 11, 3 .</span>
<span class="Constant"> . ╎3 .</span>
<span class="Constant"> . ╎2 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
]
<span class="Comment"># delete second sandbox by clicking on left edge of 'delete' button</span>
assume-console [
left-click<span class="Constant"> 7</span>,<span class="Constant"> 85</span>
]
run [
event-loop screen, console, env
]
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎ .</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 2, 2 .</span>
<span class="Constant"> . ╎4 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
<span class="Constant"> . ╎ .</span>
]
<span class="Comment"># delete first sandbox by clicking at right edge of 'delete' button</span>
assume-console [
left-click<span class="Constant"> 3</span>,<span class="Constant"> 99</span>
]
run [
event-loop screen, console, env
]
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎ .</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
<span class="Constant"> . ╎ .</span>
]
]
<span class="muRecipe">after</span> <span class="Constant"><global-touch></span> [
<span class="Comment"># support 'delete' button</span>
<span class="Delimiter">{</span>
delete?:bool <span class="Special"><-</span> should-attempt-delete? click-row, click-column, env
<span class="muControl">break-unless</span> delete?
delete?, env <span class="Special"><-</span> try-delete-sandbox click-row, env
<span class="muControl">break-unless</span> delete?
hide-screen screen
screen <span class="Special"><-</span> render-sandbox-side screen, env, render
screen <span class="Special"><-</span> update-cursor screen, recipes, current-sandbox, sandbox-in-focus?, env
show-screen screen
<span class="muControl">loop</span> <span class="Constant">+next-event</span>
<span class="Delimiter">}</span>
]
<span class="Comment"># some preconditions for attempting to delete a sandbox</span>
<span class="muRecipe">def</span> should-attempt-delete? click-row:num, click-column:num, env:&:environment<span class="muRecipe"> -> </span>result:bool [
<span class="Constant">local-scope</span>
<span class="Constant">load-ingredients</span>
<span class="Comment"># are we below the sandbox editor?</span>
click-sandbox-area?:bool <span class="Special"><-</span> click-on-sandbox-area? click-row, click-column, env
<span class="muControl">return-unless</span> click-sandbox-area?, <span class="Constant">0/false</span>
<span class="Comment"># narrower, is the click in the columns spanning the 'copy' button?</span>
first-sandbox:&:editor <span class="Special"><-</span> get *env, <span class="Constant">current-sandbox:offset</span>
assert first-sandbox, <span class="Constant">[!!]</span>
sandbox-left-margin:num <span class="Special"><-</span> get *first-sandbox, <span class="Constant">left:offset</span>
sandbox-right-margin:num <span class="Special"><-</span> get *first-sandbox, <span class="Constant">right:offset</span>
_, _, _, _, delete-button-left:num <span class="Special"><-</span> sandbox-menu-columns sandbox-left-margin, sandbox-right-margin
result <span class="Special"><-</span> within-range? click-column, delete-button-left, sandbox-right-margin
]
<span class="muRecipe">def</span> try-delete-sandbox click-row:num, env:&:environment<span class="muRecipe"> -> </span>clicked-on-delete-button?:bool, env:&:environment [
<span class="Constant">local-scope</span>
<span class="Constant">load-ingredients</span>
<span class="Comment"># identify the sandbox to delete, if the click was actually on the 'delete' button</span>
sandbox:&:sandbox <span class="Special"><-</span> find-sandbox env, click-row
<span class="muControl">return-unless</span> sandbox, <span class="Constant">0/false</span>
clicked-on-delete-button? <span class="Special"><-</span> copy <span class="Constant">1/true</span>
env <span class="Special"><-</span> delete-sandbox env, sandbox
]
<span class="muRecipe">def</span> delete-sandbox env:&:environment, sandbox:&:sandbox<span class="muRecipe"> -> </span>env:&:environment [
<span class="Constant">local-scope</span>
<span class="Constant">load-ingredients</span>
curr-sandbox:&:sandbox <span class="Special"><-</span> get *env, <span class="Constant">sandbox:offset</span>
first-sandbox?:bool <span class="Special"><-</span> equal curr-sandbox, sandbox
<span class="Delimiter">{</span>
<span class="Comment"># first sandbox? pop</span>
<span class="muControl">break-unless</span> first-sandbox?
next-sandbox:&:sandbox <span class="Special"><-</span> get *curr-sandbox, <span class="Constant">next-sandbox:offset</span>
*env <span class="Special"><-</span> put *env, <span class="Constant">sandbox:offset</span>, next-sandbox
<span class="Delimiter">}</span>
<span class="Delimiter">{</span>
<span class="Comment"># not first sandbox?</span>
<span class="muControl">break-if</span> first-sandbox?
prev-sandbox:&:sandbox <span class="Special"><-</span> copy curr-sandbox
curr-sandbox <span class="Special"><-</span> get *curr-sandbox, <span class="Constant">next-sandbox:offset</span>
<span class="Delimiter">{</span>
assert curr-sandbox, <span class="Constant">[sandbox not found! something is wrong.]</span>
found?:bool <span class="Special"><-</span> equal curr-sandbox, sandbox
<span class="muControl">break-if</span> found?
prev-sandbox <span class="Special"><-</span> copy curr-sandbox
curr-sandbox <span class="Special"><-</span> get *curr-sandbox, <span class="Constant">next-sandbox:offset</span>
<span class="muControl">loop</span>
<span class="Delimiter">}</span>
<span class="Comment"># snip sandbox out of its list</span>
next-sandbox:&:sandbox <span class="Special"><-</span> get *curr-sandbox, <span class="Constant">next-sandbox:offset</span>
*prev-sandbox <span class="Special"><-</span> put *prev-sandbox, <span class="Constant">next-sandbox:offset</span>, next-sandbox
<span class="Delimiter">}</span>
<span class="Comment"># update sandbox count</span>
sandbox-count:num <span class="Special"><-</span> get *env, <span class="Constant">number-of-sandboxes:offset</span>
sandbox-count <span class="Special"><-</span> subtract sandbox-count,<span class="Constant"> 1</span>
*env <span class="Special"><-</span> put *env, <span class="Constant">number-of-sandboxes:offset</span>, sandbox-count
<span class="Comment"># reset scroll if deleted sandbox was last</span>
<span class="Delimiter">{</span>
<span class="muControl">break-if</span> next-sandbox
render-from:num <span class="Special"><-</span> get *env, <span class="Constant">render-from:offset</span>
reset-scroll?:bool <span class="Special"><-</span> equal render-from, sandbox-count
<span class="muControl">break-unless</span> reset-scroll?
*env <span class="Special"><-</span> put *env, <span class="Constant">render-from:offset</span>,<span class="Constant"> -1</span>
<span class="Delimiter">}</span>
]
<span class="muScenario">scenario</span> deleting-sandbox-after-scroll [
<span class="Constant">local-scope</span>
trace-until <span class="Constant">100/app</span> <span class="Comment"># trace too long</span>
assume-screen <span class="Constant">100/width</span>, <span class="Constant">10/height</span>
<span class="Comment"># initialize environment</span>
env:&:environment <span class="Special"><-</span> new-programming-environment screen, <span class="Constant">[]</span>, <span class="Constant">[]</span>
render-all screen, env, render
<span class="Comment"># create 2 sandboxes and scroll to second</span>
assume-console [
press ctrl-n
type <span class="Constant">[add 2, 2]</span>
press F4
type <span class="Constant">[add 1, 1]</span>
press F4
press page-down
]
event-loop screen, console, env
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 1, 1 .</span>
<span class="Constant"> . ╎2 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎1 edit copy delete .</span>
]
<span class="Comment"># delete the second sandbox</span>
assume-console [
left-click<span class="Constant"> 6</span>,<span class="Constant"> 99</span>
]
run [
event-loop screen, console, env
]
<span class="Comment"># second sandbox shows in editor; scroll resets to display first sandbox</span>
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 1, 1 .</span>
<span class="Constant"> . ╎2 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
]
]
<span class="muScenario">scenario</span> deleting-top-sandbox-after-scroll [
<span class="Constant">local-scope</span>
trace-until <span class="Constant">100/app</span> <span class="Comment"># trace too long</span>
assume-screen <span class="Constant">100/width</span>, <span class="Constant">10/height</span>
<span class="Comment"># initialize environment</span>
env:&:environment <span class="Special"><-</span> new-programming-environment screen, <span class="Constant">[]</span>, <span class="Constant">[]</span>
render-all screen, env, render
<span class="Comment"># create 2 sandboxes and scroll to second</span>
assume-console [
press ctrl-n
type <span class="Constant">[add 2, 2]</span>
press F4
type <span class="Constant">[add 1, 1]</span>
press F4
press page-down
]
event-loop screen, console, env
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 1, 1 .</span>
<span class="Constant"> . ╎2 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎1 edit copy delete .</span>
]
<span class="Comment"># delete the second sandbox</span>
assume-console [
left-click<span class="Constant"> 2</span>,<span class="Constant"> 99</span>
]
run [
event-loop screen, console, env
]
<span class="Comment"># second sandbox shows in editor; scroll resets to display first sandbox</span>
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 2, 2 .</span>
<span class="Constant"> . ╎4 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
]
]
<span class="muScenario">scenario</span> deleting-final-sandbox-after-scroll [
<span class="Constant">local-scope</span>
trace-until <span class="Constant">100/app</span> <span class="Comment"># trace too long</span>
assume-screen <span class="Constant">100/width</span>, <span class="Constant">10/height</span>
<span class="Comment"># initialize environment</span>
env:&:environment <span class="Special"><-</span> new-programming-environment screen, <span class="Constant">[]</span>, <span class="Constant">[]</span>
render-all screen, env, render
<span class="Comment"># create 2 sandboxes and scroll to second</span>
assume-console [
press ctrl-n
type <span class="Constant">[add 2, 2]</span>
press F4
type <span class="Constant">[add 1, 1]</span>
press F4
press page-down
press page-down
]
event-loop screen, console, env
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎1 edit copy delete .</span>
<span class="Constant"> . ╎add 2, 2 .</span>
<span class="Constant"> . ╎4 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
]
<span class="Comment"># delete the second sandbox</span>
assume-console [
left-click<span class="Constant"> 2</span>,<span class="Constant"> 99</span>
]
run [
event-loop screen, console, env
]
<span class="Comment"># implicitly scroll up to first sandbox</span>
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎ .</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 1, 1 .</span>
<span class="Constant"> . ╎2 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
]
]
<span class="muScenario">scenario</span> deleting-updates-sandbox-count [
<span class="Constant">local-scope</span>
trace-until <span class="Constant">100/app</span> <span class="Comment"># trace too long</span>
assume-screen <span class="Constant">100/width</span>, <span class="Constant">10/height</span>
<span class="Comment"># initialize environment</span>
env:&:environment <span class="Special"><-</span> new-programming-environment screen, <span class="Constant">[]</span>, <span class="Constant">[]</span>
render-all screen, env, render
<span class="Comment"># create 2 sandboxes</span>
assume-console [
press ctrl-n
type <span class="Constant">[add 2, 2]</span>
press F4
type <span class="Constant">[add 1, 1]</span>
press F4
]
event-loop screen, console, env
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎ .</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 1, 1 .</span>
<span class="Constant"> . ╎2 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎1 edit copy delete .</span>
<span class="Constant"> . ╎add 2, 2 .</span>
<span class="Constant"> . ╎4 .</span>
]
<span class="Comment"># delete the second sandbox, then try to scroll down twice</span>
assume-console [
left-click<span class="Constant"> 3</span>,<span class="Constant"> 99</span>
press page-down
press page-down
]
run [
event-loop screen, console, env
]
<span class="Comment"># shouldn't go past last sandbox</span>
screen-should-contain [
<span class="Constant"> . run (F4) .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0 edit copy delete .</span>
<span class="Constant"> . ╎add 2, 2 .</span>
<span class="Constant"> . ╎4 .</span>
<span class="Constant"> . ╎─────────────────────────────────────────────────.</span>
<span class="Constant"> . ╎ .</span>
]
]
</pre>
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