## the 'copy' button makes it easy to duplicate a sandbox, and thence to
## see code operate in multiple situations
scenario copy-a-sandbox-to-editor [
local-scope
trace-until 50/app # trace too long
assume-screen 50/width, 10/height
# empty recipes
assume-resources [
]
env:&:environment <- new-programming-environment resources, screen, [add 1, 1] # contents of sandbox editor
render-all screen, env, render
# run it
assume-console [
press F4
]
event-loop screen, console, env, resources
screen-should-contain [
. run (F4) .
. .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
. .
. .
]
# click at left edge of 'copy' button
assume-console [
left-click 3, 19
]
run [
event-loop screen, console, env
]
# it copies into editor
screen-should-contain [
. run (F4) .
.add 1, 1 .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
. .
. .
]
# cursor should be in the right place
assume-console [
type [0]
]
run [
event-loop screen, console, env, resources
]
screen-should-contain [
. run (F4) .
.0add 1, 1 .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
. .
. .
]
]
scenario copy-a-sandbox-to-editor-2 [
local-scope
trace-until 50/app # trace too long
assume-screen 50/width, 10/height
# empty recipes
assume-resources [
]
env:&:environment <- new-programming-environment resources, screen, [add 1, 1] # contents of sandbox editor
render-all screen, env, render
# run it
assume-console [
press F4
]
event-loop screen, console, env, resources
screen-should-contain [
. run (F4) .
. .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
. .
. .
]
# click at right edge of 'copy' button (just before 'delete')
assume-console [
left-click 3, 33
]
run [
event-loop screen, console, env, resources
]
# it copies into editor
screen-should-contain [
. run (F4) .
.add 1, 1 .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
. .
. .
]
# cursor should be in the right place
assume-console [
type [0]
]
run [
event-loop screen, console, env, resources
]
screen-should-contain [
. run (F4) .
.0add 1, 1 .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
. .
. .
]
]
after <global-touch> [
# support 'copy' button
{
copy?:bool <- should-attempt-copy? click-row, click-column, env
break-unless copy?
copy?, env <- try-copy-sandbox click-row, env
break-unless copy?
screen <- render-sandbox-side screen, env, render
screen <- update-cursor screen, current-sandbox, env
loop +next-event
}
]
# some preconditions for attempting to copy a sandbox
def should-attempt-copy? click-row:num, click-column:num, env:&:environment -> result:bool [
local-scope
load-inputs
# are we below the sandbox editor?
click-sandbox-area?:bool <- click-on-sandbox-area? click-row, env
return-unless click-sandbox-area?, false
# narrower, is the click in the columns spanning the 'copy' button?
first-sandbox:&:editor <- get *env, current-sandbox:offset
assert first-sandbox, [!!]
sandbox-left-margin:num <- get *first-sandbox, left:offset
sandbox-right-margin:num <- get *first-sandbox, right:offset
_, _, copy-button-left:num, copy-button-right:num, _ <- sandbox-menu-columns sandbox-left-margin, sandbox-right-margin
copy-button-vertical-area?:bool <- within-range? click-column, copy-button-left, copy-button-right
return-unless copy-button-vertical-area?, false
# finally, is sandbox editor empty?
current-sandbox:&:editor <- get *env, current-sandbox:offset
result <- empty-editor? current-sandbox
]
def try-copy-sandbox click-row:num, env:&:environment -> clicked-on-copy-button?:bool, env:&:environment [
local-scope
load-inputs
# identify the sandbox to copy, if the click was actually on the 'copy' button
sandbox:&:sandbox <- find-sandbox env, click-row
return-unless sandbox, false
clicked-on-copy-button? <- copy true
text:text <- get *sandbox, data:offset
current-sandbox:&:editor <- get *env, current-sandbox:offset
current-sandbox <- insert-text current-sandbox, text
# reset scroll
*env <- put *env, render-from:offset, -1
]
def find-sandbox env:&:environment, click-row:num -> result:&:sandbox [
local-scope
load-inputs
curr-sandbox:&:sandbox <- get *env, sandbox:offset
{
break-unless curr-sandbox
start:num <- get *curr-sandbox, starting-row-on-screen:offset
found?:bool <- equal click-row, start
return-if found?, curr-sandbox
curr-sandbox <- get *curr-sandbox, next-sandbox:offset
loop
}
return null/not-found
]
def click-on-sandbox-area? click-row:num, env:&:environment -> result:bool [
local-scope
load-inputs
first-sandbox:&:sandbox <- get *env, sandbox:offset
return-unless first-sandbox, false
first-sandbox-begins:num <- get *first-sandbox, starting-row-on-screen:offset
result <- greater-or-equal click-row, first-sandbox-begins
]
def empty-editor? editor:&:editor -> result:bool [
local-scope
load-inputs
head:&:duplex-list:char <- get *editor, data:offset
first:&:duplex-list:char <- next head
result <- not first
]
def within-range? x:num, low:num, high:num -> result:bool [
local-scope
load-inputs
not-too-far-left?:bool <- greater-or-equal x, low
not-too-far-right?:bool <- lesser-or-equal x, high
result <- and not-too-far-left? not-too-far-right?
]
scenario copy-fails-if-sandbox-editor-not-empty [
local-scope
trace-until 50/app # trace too long
assume-screen 50/width, 10/height
# empty recipes
assume-resources [
]
env:&:environment <- new-programming-environment resources, screen, [add 1, 1] # contents of sandbox editor
render-all screen, env, render
# run it
assume-console [
press F4
]
event-loop screen, console, env, resources
screen-should-contain [
. run (F4) .
. .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
]
# type something into the sandbox editor, then click on the 'copy' button
assume-console [
left-click 2, 20 # put cursor in sandbox editor
type [0] # type something
left-click 3, 20 # click 'copy' button
]
run [
event-loop screen, console, env
]
# copy doesn't happen
screen-should-contain [
. run (F4) .
.0 .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
]
# cursor should be in the right place
assume-console [
type [1]
]
run [
event-loop screen, console, env, resources
]
screen-should-contain [
. run (F4) .
.01 .
.──────────────────────────────────────────────────.
.0 edit copy delete .
.add 1, 1 .
.2 .
.──────────────────────────────────────────────────.
. .
]
]