defuddle
Version:
Extract article content and metadata from web pages.
58 lines • 1.55 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.isElement = isElement;
exports.isTextNode = isTextNode;
exports.isCommentNode = isCommentNode;
exports.getComputedStyle = getComputedStyle;
exports.getWindow = getWindow;
exports.logDebug = logDebug;
const NODE_TYPE = {
ELEMENT_NODE: 1,
ATTRIBUTE_NODE: 2,
TEXT_NODE: 3,
CDATA_SECTION_NODE: 4,
ENTITY_REFERENCE_NODE: 5,
ENTITY_NODE: 6,
PROCESSING_INSTRUCTION_NODE: 7,
COMMENT_NODE: 8,
DOCUMENT_NODE: 9,
DOCUMENT_TYPE_NODE: 10,
DOCUMENT_FRAGMENT_NODE: 11,
NOTATION_NODE: 12
};
function isElement(node) {
return node.nodeType === NODE_TYPE.ELEMENT_NODE;
}
function isTextNode(node) {
return node.nodeType === NODE_TYPE.TEXT_NODE;
}
function isCommentNode(node) {
return node.nodeType === NODE_TYPE.COMMENT_NODE;
}
function getComputedStyle(element) {
const win = getWindow(element.ownerDocument);
if (!win)
return null;
return win.getComputedStyle(element);
}
function getWindow(doc) {
// First try defaultView
if (doc.defaultView) {
return doc.defaultView;
}
// Then try ownerWindow
if (doc.ownerWindow) {
return doc.ownerWindow;
}
// Finally try to get window from document
if (doc.window) {
return doc.window;
}
return null;
}
function logDebug(message, ...args) {
if (typeof window !== 'undefined' && window.defuddleDebug) {
console.log('Defuddle:', message, ...args);
}
}
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