Orkuncakilkaya
637d07400e
- Natives: ui_native(tag, measure, draw) makes an element the program draws itself; ui_fire runs its on-<event> with event.value. input, select and textarea have simple defaults. - React: - keyed <each>, <let>, <provide> context through components, <fragment>; - named slots, default props on <component>; - on-mount / on-unmount; - inline text inside text elements. - CSS: - custom properties and var(); - position relative/absolute/fixed with insets and z-index; - em/rem/vw/vh and @media; - wrapping text and ellipsis, overflow; - + and ~ combinators, :nth-child(an+b), :checked, :active. - Developing: errors with file:line, ui_errors(), ui_reload() keeping state, and an inspector-style ui_dump. - view fields infer the type of a literal or a named function's result. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
64 lines
2.2 KiB
Text
64 lines
2.2 KiB
Text
# life.ludic - on-mount and on-unmount: an element or component that appears in a frame it was not
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# in last frame is mounted, and one that is gone is unmounted, each once, after the frame is drawn
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var lc_keys: []string = new []string
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var lc_mounts: []UiAct = new []UiAct
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var lc_unmounts: []UiAct = new []UiAct
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var lc_envs: []UiEnv = new []UiEnv
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var lc_prev_keys: []string = new []string
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var lc_prev_unmounts: []UiAct = new []UiAct
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var lc_prev_envs: []UiEnv = new []UiEnv
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# a build starts its own records: a screen built twice keeps only the last build's
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function lc_begin() -> void {
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lc_keys = new []string
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lc_mounts = new []UiAct
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lc_unmounts = new []UiAct
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lc_envs = new []UiEnv
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}
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function lc_note(key: string, names: []string, acts: []UiAct, e: UiEnv) -> void {
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var m: UiAct = null
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var u: UiAct = null
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for i in 0 .. len(names) {
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if names[i] == "mount" { m = acts[i] }
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if names[i] == "unmount" { u = acts[i] }
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}
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if m == null and u == null { return }
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push(lc_keys, key)
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push(lc_mounts, m)
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push(lc_unmounts, u)
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push(lc_envs, e)
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}
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function lc_mine(key: string, screen: string) -> bool {
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let n = len(screen)
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return key == screen or (len(key) > n and key[0..n] == screen and key[n] == 47)
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}
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# the screen's mounts and unmounts since its last frame; other screens' records are kept
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function lc_run(screen: string) -> void {
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for i in 0 .. len(lc_keys) {
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if lc_mounts[i] != null and not sel_has(lc_prev_keys, lc_keys[i]) { act_run(lc_mounts[i], lc_envs[i]) }
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}
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let keys = new []string
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let unmounts = new []UiAct
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let envs = new []UiEnv
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for i in 0 .. len(lc_prev_keys) {
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let k = lc_prev_keys[i]
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if lc_mine(k, screen) {
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if lc_prev_unmounts[i] != null and not sel_has(lc_keys, k) { act_run(lc_prev_unmounts[i], lc_prev_envs[i]) }
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} else {
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push(keys, k)
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push(unmounts, lc_prev_unmounts[i])
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push(envs, lc_prev_envs[i])
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}
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}
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for i in 0 .. len(lc_keys) {
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push(keys, lc_keys[i])
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push(unmounts, lc_unmounts[i])
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push(envs, lc_envs[i])
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}
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lc_prev_keys = keys
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lc_prev_unmounts = unmounts
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lc_prev_envs = envs
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lc_keys = new []string
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lc_mounts = new []UiAct
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lc_unmounts = new []UiAct
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lc_envs = new []UiEnv
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}
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