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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,3 @@ | ||
| node_modules | ||
| lib | ||
| .astro |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| import { Spec } from './types'; | ||
|
|
||
| top!.__vtbag ??= {}; | ||
| top!.__vtbag.elementCrossing ??= {}; | ||
| const elementCrossing = top!.__vtbag.elementCrossing!; | ||
|
|
||
| console.log('[elc]', 'init'); | ||
| if (top === self) { | ||
| initBorderLands(); | ||
| } else if (self.parent === top) { | ||
| initHeartLand(); | ||
| } else { | ||
| console.log('[elc]', 'neither BorderLands nor HeartLand'); | ||
| } | ||
|
|
||
| function initBorderLands() { | ||
| console.log('[elc]', 'init BorderLands'); | ||
| addEventListener('pagereveal', () => { | ||
| console.log('[elc]', 'DOMContentLoaded'); | ||
| const topDoc = top!.document; | ||
| const root = topDoc.documentElement; | ||
| root.innerHTML = `<body style="margin:0; overflow=clip"><iframe width=${innerWidth} height=${innerHeight} src="${location.href}"/>`; | ||
| root.style.overflow = 'clip'; | ||
| }); | ||
| } | ||
|
|
||
| function initHeartLand() { | ||
| console.log('[elc]', 'init HeartLand'); | ||
| self.addEventListener('pageswap', pageSwap, { once: true }); | ||
| self.addEventListener('pagereveal', pageReveal, { once: true }); | ||
| } | ||
|
|
||
| function pageSwap() { | ||
| console.log('[elc]', 'pageSwap'); | ||
|
|
||
| self.document.querySelectorAll<HTMLElement>('[data-vtbag-x]').forEach((el) => { | ||
| let id; | ||
| const specs: Spec[] = []; | ||
| el | ||
| .getAttribute('data-vtbag-x') | ||
| ?.split(' ') | ||
| .forEach((value) => { | ||
| const [kind, key] = kindAndKey(value); | ||
| switch (kind) { | ||
| case 'id': | ||
| id = key; | ||
| break; | ||
| case 'class': | ||
| specs.push({ kind, key, value: el.classList.contains(key) ? 'true' : 'false' }); | ||
| break; | ||
| case 'style': | ||
| specs.push({ | ||
| kind, | ||
| key, | ||
| value: '' + (el.style[key as keyof CSSStyleDeclaration] ?? ''), | ||
| }); | ||
| break; | ||
| case 'attr': | ||
| specs.push({ kind, key, value: el.getAttribute(key) ?? '' }); | ||
| break; | ||
| default: | ||
| console.error('[crossing]', 'unknown kind', kind); | ||
| break; | ||
| } | ||
| }); | ||
| }); | ||
| } | ||
|
|
||
| function pageReveal() { | ||
| console.log('[elc]', 'pageReveal'); | ||
| const topDoc = top!.document; | ||
| topDoc.title = document.title; | ||
| top!.history.replaceState({}, '', location.href); | ||
| } | ||
|
|
||
| function kindAndKey(value: string) { | ||
| let [kind, key] = value.split(':'); | ||
| if (key === undefined) { | ||
| key = kind.slice(1); | ||
| switch (kind[0]) { | ||
| case '#': | ||
| kind = 'id'; | ||
| break; | ||
| case '.': | ||
| kind = 'class'; | ||
| break; | ||
| case '@': | ||
| kind = 'attr'; | ||
| break; | ||
| case '-': | ||
| kind = 'style'; | ||
| break; | ||
| default: | ||
| console.error( | ||
| '[crossing]', | ||
| 'syntax error:', | ||
| value, | ||
| 'is not recognized as a valid specification' | ||
| ); | ||
| } | ||
| } | ||
| return [kind, key]; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| import { ElementSpec, Spec } from './types'; | ||
|
|
||
| top!.__vtbag ??= {}; | ||
| top!.__vtbag.elementCrossing ??= {}; | ||
|
|
||
| init(); | ||
|
|
||
| function init() { | ||
| self.addEventListener("onpageswap" in self ? 'pageswap' : 'pagehide', pageSwap, { once: true }); | ||
| self.addEventListener("onpagereveal" in self ? 'pagereveal' : 'DOMContentLoaded', pageReveal, { once: true }); | ||
| } | ||
|
|
||
| function pageSwap() { | ||
| console.log('pageSwap'); | ||
| sessionStorage.setItem('@vtbag/element-crossing', JSON.stringify(retrieve())); | ||
| } | ||
|
|
||
| function pageReveal() { | ||
| console.log('pageReveal'); | ||
| const values = sessionStorage.getItem('@vtbag/element-crossing'); | ||
| console.log(values); | ||
| restore(JSON.parse(values ?? "[]")); | ||
| } | ||
|
|
||
| function retrieve() { | ||
| const known = new Set<string>(); | ||
| const values: ElementSpec[] = []; | ||
| self.document | ||
| .querySelectorAll<HTMLElement>('[data-vtbag-x]') | ||
| .forEach((element) => { | ||
| const spec = elementSpec(element); | ||
| if (spec) { | ||
| if (known.has(spec.id)) console.error('[crossing]', 'non unique id', spec.id); | ||
| values.push(spec); | ||
| known.add(spec.id); | ||
| } | ||
| }); | ||
| return values; | ||
| } | ||
|
|
||
| function elementSpec(element: HTMLElement) { | ||
| function kindAndKey(value: string) { | ||
| let [kind, key] = value.split(':', 2); | ||
| if (key === undefined) { | ||
| key = kind.slice(1); | ||
| switch (kind[0]) { | ||
| case '#': | ||
| kind = 'id'; | ||
| break; | ||
| case '.': | ||
| kind = 'class'; | ||
| break; | ||
| case '@': | ||
| kind = 'prop'; | ||
| break; | ||
| case '-': | ||
| kind = 'style'; | ||
| break; | ||
| case '~': | ||
| kind = 'anim'; | ||
| break; | ||
| default: | ||
| console.error( | ||
| '[crossing]', | ||
| 'syntax error:', | ||
| value, | ||
| 'is not recognized as a valid specification' | ||
| ); | ||
| } | ||
| } | ||
| return [kind, key]; | ||
| } | ||
|
|
||
| let id = element.id; | ||
| const specs: Spec[] = []; | ||
| element | ||
| .getAttribute('data-vtbag-x') | ||
| ?.split(' ') | ||
| .forEach((value) => { | ||
| const [kind, key] = kindAndKey(value); | ||
| switch (kind) { | ||
| case 'id': | ||
| id = key; | ||
| break; | ||
| case 'class': | ||
| specs.push({ kind, key, value: element.classList.contains(key) ? 'true' : 'false' }); | ||
| break; | ||
| case 'style': | ||
| specs.push({ | ||
| kind, | ||
| key, | ||
| value: '' + (element.style[key as keyof CSSStyleDeclaration] ?? ''), | ||
| }); | ||
| break; | ||
| case 'bool': | ||
| case 'num': | ||
| case 'prop': | ||
| const val = element[key as keyof HTMLElement]; | ||
| const type = typeof val; | ||
| specs.push({ kind: type === "boolean" ? "bool" : (type === "number" ? "num" : "prop"), key, value: "" + val }); | ||
| break; | ||
| case 'anim': | ||
| const animations = element.getAnimations().filter(a => a instanceof CSSAnimation && a.animationName === key); | ||
| if (animations.length > 1) { | ||
| console.error("[crossing]", `retrieval: animation name ${key} is not unique for`, element); | ||
| } | ||
| if (animations.length > 0) { | ||
| specs.push({ kind, key, value: "" + (animations[0].currentTime ?? 0) }); | ||
| } break; | ||
| default: | ||
| console.error('[crossing]', 'unknown kind', kind); | ||
| break; | ||
| } | ||
| }); | ||
| if (id === undefined) console.error('[crossing]', 'missing id in', element); | ||
| else return { id, specs }; | ||
| } | ||
|
|
||
| function restore(values: ElementSpec[]) { | ||
| values.forEach((elementSpec: ElementSpec) => { | ||
| const element = document.querySelector<HTMLElement>( | ||
| "#" + elementSpec.id + | ||
| ",[data-vtbag-x*='#" + elementSpec.id + | ||
| "'],[data-vtbag-x*='id:" + elementSpec.id + | ||
| "']" | ||
| ); | ||
| if (!element) return; | ||
| elementSpec.specs.forEach((s) => { | ||
| switch (s.kind) { | ||
| case 'class': | ||
| element.classList[s.value === 'true' ? 'add' : 'remove'](s.key); | ||
| break; | ||
| case 'style': | ||
| if (s.key === 'length' || s.key === 'parentRule') { | ||
| console.error( | ||
| '[crossing]', | ||
| 'Cannot assign to read-only property', | ||
| s.key, | ||
| 'in', | ||
| elementSpec.id | ||
| ); | ||
| } else { | ||
| element.style.setProperty(s.key, s.value ?? ''); | ||
| } | ||
| break; | ||
| case 'prop': | ||
| (element as any)[s.key] = s.value; | ||
| break; | ||
| case 'bool': | ||
| (element as any)[s.key] = s.value === "true"; | ||
| break; | ||
| case 'num': | ||
| (element as any)[s.key] = parseFloat(s.value ?? "0"); | ||
| break; | ||
| case 'anim': | ||
| const animations = element.getAnimations().filter(a => a instanceof CSSAnimation && a.animationName === s.key); | ||
| if (animations.length > 1) { | ||
| console.warn("[crossing]", `restore: animation name ${s.key} is not unique for`, element); | ||
| } | ||
| animations.forEach(a => a.currentTime = ~~(s.value ?? "0")); | ||
| element.setAttribute(s.key, s.value ?? ''); | ||
| break; | ||
| default: | ||
| console.error('[crossing]', 'unknown kind', s.kind); | ||
| break; | ||
| } | ||
| }); | ||
| }); | ||
| } |