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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -2,7 +2,6 @@ | |
| // Author: Anton Medvedev <[email protected]> | ||
| // Source: https://github.com/antonmedv/finder | ||
| export function finder(input, options) { | ||
| const startTime = new Date(); | ||
| if (input.nodeType !== Node.ELEMENT_NODE) { | ||
| throw new Error(`Can't generate CSS selector for non-element node type.`); | ||
| } | ||
|
|
@@ -15,15 +14,47 @@ export function finder(input, options) { | |
| className: wordLike, | ||
| tagName: (name) => true, | ||
| attr: useAttr, | ||
| timeoutMs: 1000, | ||
| seedMinLength: 2, | ||
| optimizedMinLength: 2, | ||
| timeoutMs: 1000, | ||
| maxNumberOfPathChecks: Infinity, | ||
| }; | ||
| const startTime = new Date(); | ||
| const config = { ...defaults, ...options }; | ||
| const rootDocument = findRootDocument(config.root, defaults); | ||
| let foundPath; | ||
| let count = 0; | ||
| for (const candidate of search(input, config, rootDocument)) { | ||
| const elapsedTimeMs = new Date().getTime() - startTime.getTime(); | ||
| if (elapsedTimeMs > config.timeoutMs || | ||
| count >= config.maxNumberOfPathChecks) { | ||
| const fPath = fallback(input, rootDocument); | ||
| if (!fPath) { | ||
| throw new Error(`Timeout: Can't find a unique selector after ${config.timeoutMs}ms`); | ||
| } | ||
| return selector(fPath); | ||
| } | ||
| count++; | ||
| if (unique(candidate, rootDocument)) { | ||
| foundPath = candidate; | ||
| break; | ||
| } | ||
| } | ||
| if (!foundPath) { | ||
| throw new Error(`Selector was not found.`); | ||
| } | ||
| const optimized = [ | ||
| ...optimize(foundPath, input, config, rootDocument, startTime), | ||
| ]; | ||
| optimized.sort(byPenalty); | ||
| if (optimized.length > 0) { | ||
| return selector(optimized[0]); | ||
| } | ||
| return selector(foundPath); | ||
| } | ||
| function* search(input, config, rootDocument) { | ||
| const stack = []; | ||
| let paths = []; | ||
| let foundPath; | ||
| let current = input; | ||
| let i = 0; | ||
| while (current && current !== rootDocument) { | ||
|
|
@@ -36,27 +67,17 @@ export function finder(input, options) { | |
| i++; | ||
| paths.push(...combinations(stack)); | ||
| if (i >= config.seedMinLength) { | ||
| foundPath = search(paths, config, input, rootDocument, startTime); | ||
| if (foundPath) { | ||
| break; | ||
| paths.sort(byPenalty); | ||
| for (const candidate of paths) { | ||
| yield candidate; | ||
| } | ||
| paths = []; | ||
| } | ||
| } | ||
| if (paths.length > 0) { | ||
| foundPath = search(paths, config, input, rootDocument, startTime); | ||
| } | ||
| if (!foundPath) { | ||
| throw new Error(`Selector was not found.`); | ||
| } | ||
| const optimized = [ | ||
| ...optimize(foundPath, input, config, rootDocument, startTime), | ||
| ]; | ||
| optimized.sort(byPenalty); | ||
| if (optimized.length > 0) { | ||
| return selector(optimized[0]); | ||
| paths.sort(byPenalty); | ||
| for (const candidate of paths) { | ||
| yield candidate; | ||
| } | ||
| return selector(foundPath); | ||
| } | ||
| export function wordLike(name) { | ||
| if (/^[a-z0-9\-]{3,}$/i.test(name)) { | ||
|
|
@@ -81,22 +102,6 @@ export function useAttr(name, value) { | |
| valueIsOk ||= value.startsWith('#') && wordLike(value.slice(1)); | ||
| return nameIsOk && valueIsOk; | ||
| } | ||
| function search(paths, config, input, rootDocument, startTime) { | ||
| paths.sort(byPenalty); | ||
| for (const candidate of paths) { | ||
| const elapsedTimeMs = new Date().getTime() - startTime.getTime(); | ||
| if (elapsedTimeMs > config.timeoutMs) { | ||
| const path = fallback(input, rootDocument); | ||
| if (path) { | ||
| return path; | ||
| } | ||
| throw new Error(`Timeout: Can't find a unique selector after ${config.timeoutMs}ms`); | ||
| } | ||
| if (unique(candidate, rootDocument)) { | ||
| return candidate; | ||
| } | ||
| } | ||
| } | ||
| function tie(element, config) { | ||
| const level = []; | ||
| const elementId = element.getAttribute('id'); | ||
|
|
||
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