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<title>Mu - edit/007-sandbox-delete.mu</title>
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<pre id='vimCodeElement'>
<span class="SalientComment">## deleting sandboxes</span>
<span class="muScenario">scenario</span> deleting-sandboxes [
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>
<span class="Constant">1</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">2</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">3</span>:&:environment<span class="Special"> <- </span>new-programming-environment screen:&:screen, <span class="Constant">1</span>:text, <span class="Constant">2</span>:text
<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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
]
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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
]
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:label</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">reply-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 [
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>
<span class="Constant">1</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">2</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">3</span>:&:environment<span class="Special"> <- </span>new-programming-environment screen:&:screen, <span class="Constant">1</span>:text, <span class="Constant">2</span>:text
render-all screen, <span class="Constant">3</span>:&:environment, 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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
]
<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 [
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>
<span class="Constant">1</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">2</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">3</span>:&:environment<span class="Special"> <- </span>new-programming-environment screen:&:screen, <span class="Constant">1</span>:text, <span class="Constant">2</span>:text
render-all screen, <span class="Constant">3</span>:&:environment, 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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
]
<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 [
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>
<span class="Constant">1</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">2</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">3</span>:&:environment<span class="Special"> <- </span>new-programming-environment screen:&:screen, <span class="Constant">1</span>:text, <span class="Constant">2</span>:text
render-all screen, <span class="Constant">3</span>:&:environment, 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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
]
<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 [
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>
<span class="Constant">1</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">2</span>:text<span class="Special"> <- </span>new <span class="Constant">[]</span>
<span class="Constant">3</span>:&:environment<span class="Special"> <- </span>new-programming-environment screen:&:screen, <span class="Constant">1</span>:text, <span class="Constant">2</span>:text
render-all screen, <span class="Constant">3</span>:&:environment, 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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
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:&:screen, console:&:console, <span class="Constant">3</span>:&:environment
]
<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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