package.dist.prod.util.FocusableElements.js.map Maven / Gradle / Ivy

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{
  "version": 3,
  "sources": ["../../../src/util/FocusableElements.ts"],
  "sourcesContent": ["import isElementHidden from \"./isElementHidden.js\";\nimport isElementClickable from \"./isElementClickable.js\";\nimport { instanceOfUI5Element } from \"../UI5Element.js\";\n\ntype FocusableElementPromise = Promise;\n\nconst isFocusTrap = (el: HTMLElement) => {\n\treturn el.hasAttribute(\"data-ui5-focus-trap\");\n};\n\nconst getFirstFocusableElement = async (container: HTMLElement, startFromContainer?: boolean): FocusableElementPromise => {\n\tif (!container || isElementHidden(container)) {\n\t\treturn null;\n\t}\n\n\treturn findFocusableElement(container, true, startFromContainer);\n};\n\nconst getLastFocusableElement = async (container: HTMLElement, startFromContainer?: boolean): FocusableElementPromise => {\n\tif (!container || isElementHidden(container)) {\n\t\treturn null;\n\t}\n\n\treturn findFocusableElement(container, false, startFromContainer);\n};\n\nconst isElemFocusable = (el: HTMLElement) => {\n\treturn el.hasAttribute(\"data-ui5-focus-redirect\") || !isElementHidden(el);\n};\n\nconst findFocusableElement = async (container: HTMLElement, forward: boolean, startFromContainer?: boolean): FocusableElementPromise => {\n\tlet child: HTMLElement | undefined;\n\tlet assignedElements;\n\tlet currentIndex = -1;\n\n\tif (container.shadowRoot) {\n\t\tchild = forward ? container.shadowRoot.firstChild as HTMLElement : container.shadowRoot.lastChild as HTMLElement;\n\t} else if (container instanceof HTMLSlotElement && container.assignedNodes()) {\n\t\tassignedElements = container.assignedNodes();\n\t\tcurrentIndex = forward ? 0 : assignedElements.length - 1;\n\t\tchild = assignedElements[currentIndex] as HTMLElement;\n\t} else if (startFromContainer) {\n\t\tchild = container;\n\t} else {\n\t\tchild = forward ? container.firstElementChild as HTMLElement : container.lastElementChild as HTMLElement;\n\t}\n\n\tlet focusableDescendant;\n\n\t/* eslint-disable no-await-in-loop */\n\n\twhile (child) {\n\t\tconst originalChild: HTMLElement | undefined = child;\n\n\t\tif (instanceOfUI5Element(child)) {\n\t\t\tchild = await child.getFocusDomRefAsync();\n\t\t}\n\n\t\tif (!child) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif (child.nodeType === 1 && isElemFocusable(child) && !isFocusTrap(child)) {\n\t\t\tif (isElementClickable(child)) {\n\t\t\t\treturn (child && typeof child.focus === \"function\") ? child : null;\n\t\t\t}\n\n\t\t\tfocusableDescendant = await findFocusableElement(child, forward);\n\t\t\tif (focusableDescendant) {\n\t\t\t\treturn (focusableDescendant && typeof focusableDescendant.focus === \"function\") ? focusableDescendant : null;\n\t\t\t}\n\t\t}\n\n\t\tchild = forward ? originalChild.nextSibling as HTMLElement : originalChild.previousSibling as HTMLElement;\n\n\t\t// If the child element is not part of the currently assigned element,\n\t\t// we have to check the next/previous element assigned to the slot or continue with the next/previous sibling of the slot,\n\t\t// otherwise, the nextSibling/previousSibling is the next element inside the light DOM\n\t\tif (assignedElements && !assignedElements[currentIndex].contains(child)) {\n\t\t\tcurrentIndex = forward ? currentIndex + 1 : currentIndex - 1;\n\n\t\t\tchild = assignedElements[currentIndex] as HTMLElement;\n\t\t}\n\t}\n\n\t/* eslint-enable no-await-in-loop */\n\n\treturn null;\n};\n\nexport {\n\tgetFirstFocusableElement,\n\tgetLastFocusableElement,\n};\n"],
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  "names": ["isElementHidden", "isElementClickable", "instanceOfUI5Element", "isFocusTrap", "el", "getFirstFocusableElement", "container", "startFromContainer", "findFocusableElement", "getLastFocusableElement", "isElemFocusable", "forward", "child", "assignedElements", "currentIndex", "focusableDescendant", "originalChild"]
}