html2canvas/src/Logger.js

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/* @flow */
'use strict';
export default class Logger {
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enabled: boolean;
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start: number;
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id: ?string;
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constructor(enabled: boolean, id: ?string, start: ?number) {
this.enabled = enabled;
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this.start = start ? start : Date.now();
this.id = id;
}
child(id: string) {
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return new Logger(this.enabled, id, this.start);
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}
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// eslint-disable-next-line flowtype/no-weak-types
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log(...args: any) {
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if (this.enabled && window.console && window.console.log) {
Function.prototype.bind
.call(window.console.log, window.console)
.apply(
window.console,
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[
Date.now() - this.start + 'ms',
this.id ? `html2canvas (${this.id}):` : 'html2canvas:'
].concat([].slice.call(args, 0))
);
}
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}
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// eslint-disable-next-line flowtype/no-weak-types
error(...args: any) {
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if (this.enabled && window.console && window.console.error) {
Function.prototype.bind
.call(window.console.error, window.console)
.apply(
window.console,
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[
Date.now() - this.start + 'ms',
this.id ? `html2canvas (${this.id}):` : 'html2canvas:'
].concat([].slice.call(args, 0))
);
}
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}
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}