console-feed
Version:
A React component that displays console logs from the current page, an iframe or transported across a server
102 lines • 7.05 kB
JavaScript
;
exports.__esModule = true;
var string_utils_1 = require("./string-utils");
function createAppend(s) {
var container = document.createDocumentFragment();
container.appendChild(document.createTextNode(s));
return container;
}
/**
* @param {string} format
* @param {!Array.<!SDK.RemoteObject>} parameters
* @param {!Element} formattedResult
*/
function formatWithSubstitutionString(format, parameters, formattedResult) {
var formatters = {};
function stringFormatter(obj) {
if (typeof obj !== 'string') {
return '';
}
return String(obj);
}
function floatFormatter(obj) {
if (typeof obj !== 'number')
return 'NaN';
return obj;
}
function integerFormatter(obj) {
if (typeof obj !== 'number')
return 'NaN';
return Math.floor(obj);
}
var currentStyle = null;
function styleFormatter(obj) {
currentStyle = {};
var buffer = document.createElement('span');
buffer.setAttribute('style', obj);
for (var i = 0; i < buffer.style.length; i++) {
var property = buffer.style[i];
if (isWhitelistedProperty(property))
currentStyle[property] = buffer.style[property];
}
}
function isWhitelistedProperty(property) {
var prefixes = [
'background',
'border',
'color',
'font',
'line',
'margin',
'padding',
'text',
'-webkit-background',
'-webkit-border',
'-webkit-font',
'-webkit-margin',
'-webkit-padding',
'-webkit-text'
];
for (var i = 0; i < prefixes.length; i++) {
if (property.startsWith(prefixes[i]))
return true;
}
return false;
}
formatters.s = stringFormatter;
formatters.f = floatFormatter;
// Firebug allows both %i and %d for formatting integers.
formatters.i = integerFormatter;
formatters.d = integerFormatter;
// Firebug uses %c for styling the message.
formatters.c = styleFormatter;
function append(a, b) {
if (b instanceof Node) {
a.appendChild(b);
}
else if (typeof b !== 'undefined') {
var toAppend = createAppend(String(b));
if (currentStyle) {
var wrapper = document.createElement('span');
wrapper.appendChild(toAppend);
applyCurrentStyle(wrapper);
for (var i = 0; i < wrapper.children.length; ++i)
applyCurrentStyle(wrapper.children[i]);
toAppend = wrapper;
}
a.appendChild(toAppend);
}
return a;
}
/**
* @param {!Element} element
*/
function applyCurrentStyle(element) {
for (var key in currentStyle)
element.style[key] = currentStyle[key];
}
// String.format does treat formattedResult like a Builder, result is an object.
return string_utils_1.String.format(format, parameters, formatters, formattedResult, append);
}
exports["default"] = formatWithSubstitutionString;
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