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gu.automation.0.0.3.source-code.querySelector.js Maven / Gradle / Ivy

var querySelectorAllDeep = function querySelectorAllDeep(selector, root) {
	if(root==undefined) {
		return _querySelectorDeep(selector, true, document);
	} else {
		return _querySelectorDeep(selector, true, root);
	}
};

var querySelectorDeep = function querySelectorDeep(selector, root) {
	if(root==undefined) {
		return _querySelectorDeep(selector, false, document);
	} else {
		return _querySelectorDeep(selector, false, root);
	}
};

var getObject = function getObject(selector, root = document) {
    const multiLevelSelectors = splitByCharacterUnlessQuoted(selector, '>');
	if (multiLevelSelectors.length == 1) {
		return querySelectorDeep(multiLevelSelectors[0], root);
	} else if (multiLevelSelectors.length == 2) {
		return querySelectorDeep(multiLevelSelectors[1], querySelectorDeep(multiLevelSelectors[0]).root);
	} else if (multiLevelSelectors.length == 3) {
		return querySelectorDeep(multiLevelSelectors[2], querySelectorDeep(multiLevelSelectors[1], querySelectorDeep(multiLevelSelectors[0]).root));
	} else if (multiLevelSelectors.length == 4) {
		return querySelectorDeep(multiLevelSelectors[3], querySelectorDeep(multiLevelSelectors[2], querySelectorDeep(multiLevelSelectors[1], querySelectorDeep(multiLevelSelectors[0]).root)));
	}
	
};

var getAllObject = function getAllObject(selector, root = document) {
    const multiLevelSelectors = splitByCharacterUnlessQuoted(selector, '>');
    if (multiLevelSelectors.length == 1) {
        return querySelectorAllDeep(multiLevelSelectors[0], root);
    } else if (multiLevelSelectors.length == 2) {
        return querySelectorAllDeep(multiLevelSelectors[1], querySelectorDeep(multiLevelSelectors[0]).root);
    } else if (multiLevelSelectors.length == 3) {
        return querySelectorAllDeep(multiLevelSelectors[2], querySelectorDeep(multiLevelSelectors[1], querySelectorDeep(multiLevelSelectors[0]).root));
    } else if (multiLevelSelectors.length == 4) {
		return querySelectorAllDeep(multiLevelSelectors[3], querySelectorDeep(multiLevelSelectors[2], querySelectorDeep(multiLevelSelectors[1], querySelectorDeep(multiLevelSelectors[0]).root)));
	}
    
};

function _querySelectorDeep(selector, findMany, root) {
    let lightElement = root.querySelector(selector);

    if (document.head.createShadowRoot || document.head.attachShadow) {
        if (!findMany && lightElement) {
            return lightElement;
        }

        const selectionsToMake = splitByCharacterUnlessQuoted(selector, ',');

        return selectionsToMake.reduce((acc, minimalSelector) => {
            if (!findMany && acc) {
                return acc;
            }
            const splitSelector = splitByCharacterUnlessQuoted(minimalSelector
                    .replace(/^\s+/g, '')
                    .replace(/\s*([>+~]+)\s*/g, '$1'), ' ')
                .filter((entry) => !!entry);
            const possibleElementsIndex = splitSelector.length - 1;
            const possibleElements = collectAllElementsDeep(splitSelector[possibleElementsIndex], root);
            const findElements = findMatchingElement(splitSelector, possibleElementsIndex, root);
            if (findMany) {
                acc = acc.concat(possibleElements.filter(findElements));
                return acc;
            } else {
                acc = possibleElements.find(findElements);
                return acc;
            }
        }, findMany ? [] : null);


    } else {
        if (!findMany) {
            return lightElement;
        } else {
            return root.querySelectorAll(selector);
        }
    }

}

function findMatchingElement(splitSelector, possibleElementsIndex, root) {
    return (element) => {
        let position = possibleElementsIndex;
        let parent = element;
        let foundElement = false;
        while (parent) {
            const foundMatch = parent.matches(splitSelector[position]);
            if (foundMatch && position === 0) {
                foundElement = true;
                break;
            }
            if (foundMatch) {
                position--;
            }
            parent = findParentOrHost(parent, root);
        }
        return foundElement;
    };

}

function splitByCharacterUnlessQuoted(selector, character) {
    return selector.match(/\\?.|^$/g).reduce((p, c) => {
        if (c === '"' && !p.sQuote) {
            p.quote ^= 1;
            p.a[p.a.length - 1] += c;
        } else if (c === '\'' && !p.quote) {
            p.sQuote ^= 1;
            p.a[p.a.length - 1] += c;

        } else if (!p.quote && !p.sQuote && c === character) {
            p.a.push('');
        } else {
            p.a[p.a.length - 1] += c;
        }
        return p;
    }, { a: [''] }).a;
}


function findParentOrHost(element, root) {
    const parentNode = element.parentNode;
    return (parentNode && parentNode.host && parentNode.nodeType === 11) ? parentNode.host : parentNode === root ? null : parentNode;
}


function collectAllElementsDeep(selector = null, root) {
    const allElements = [];

    const findAllElements = function(nodes) {
        for (let i = 0, el; el = nodes[i]; ++i) {
            allElements.push(el);
            if (el.shadowRoot) {
                findAllElements(el.shadowRoot.querySelectorAll('*'));
            }
        }
    };

    findAllElements(root.querySelectorAll('*'));

    return selector ? allElements.filter(el => el.matches(selector)) : allElements;
}