@nativescript/core
Version:
A JavaScript library providing an easy to use api for interacting with iOS and Android platform APIs.
84 lines • 2.56 kB
JavaScript
//Requires
import { getNodeById } from './dom-node';
import { mainThreadify } from '../utils';
// Use lazy requires for core modules
const getAppRootView = () => require('../application').getRootView();
let unsetValue;
function unsetViewValue(view, name) {
if (!unsetValue) {
unsetValue = require('../ui/core/properties').unsetValue;
}
view[name] = unsetValue;
}
function getViewById(nodeId) {
const node = getNodeById(nodeId);
let view;
if (node) {
view = node.viewRef.get();
}
return view;
}
export function getDocument() {
const appRoot = getAppRootView();
if (!appRoot) {
return undefined;
}
try {
appRoot.ensureDomNode();
}
catch (e) {
console.log('ERROR in getDocument(): ' + e);
}
return appRoot.domNode.toObject();
}
export function getComputedStylesForNode(nodeId) {
const view = getViewById(nodeId);
if (view) {
return view.domNode.getComputedProperties();
}
return [];
}
export const removeNode = mainThreadify(function removeNode(nodeId) {
const view = getViewById(nodeId);
if (view) {
// Avoid importing layout and content view
const parent = view.parent;
if (parent.removeChild) {
parent.removeChild(view);
}
else if (parent.content === view) {
parent.content = null;
}
else {
console.log("Can't remove child from " + parent);
}
}
});
export const setAttributeAsText = mainThreadify(function setAttributeAsText(nodeId, text, name) {
const view = getViewById(nodeId);
if (view) {
// attribute is registered for the view instance
const hasOriginalAttribute = !!name.trim();
if (text) {
const textParts = text.split('=');
if (textParts.length === 2) {
const attrName = textParts[0];
const attrValue = textParts[1].replace(/['"]+/g, '');
// if attr name is being replaced with another
if (name !== attrName && hasOriginalAttribute) {
unsetViewValue(view, name);
view[attrName] = attrValue;
}
else {
view[hasOriginalAttribute ? name : attrName] = attrValue;
}
}
}
else {
// delete attribute
unsetViewValue(view, name);
}
view.domNode.loadAttributes();
}
});
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