/**
 * Copyright (c) 2018-2020, Matei Bogdan Radu <opensource@mateiradu.dev>
 *
 * This source code is licensed under the MIT license found in the LICENSE
 * file in the root directory of this source tree.
 */
import { PlatformOSType } from 'react-native';
import { ColorInput } from '@ctrl/tinycolor';
export interface Settings {
    /**
     * Android specific settings.
     *
     * All settings are optional and invalid ones will be ignored.
     *
     * The implementation uses Chrome Custom Tabs.
     */
    android?: SettingsAndroid;
    /**
     * iOS specific settings.
     *
     * All settings are optional and invalid ones will be ignored.
     *
     * The implementation uses Safari View Manager.
     */
    ios?: SettingsIOS;
}
export interface SettingsAndroid {
    /**
     * The color to tint the background of the toolbar.
     *
     * **Note**: if the color string is invalid, this setting will be ignored.
     */
    toolbarColor?: ColorInput;
    /**
     * Flag to toggle if the title should be shown in the custom tab.
     *
     * **Note**: if the value is invalid, this setting will be ignored.
     */
    showTitle?: boolean;
    /**
     * Custom close button icon.
     *
     * Provided icon must be a `.png`, `.jpg`, or `.gif` file.
     *
     * **Note**: if icon asset is invalid, this setting will be ignored.
     */
    closeButtonIcon?: any;
    /**
     * Flag to toggle the default share menu.
     *
     * **Note**: if the value is invalid, this setting will be ignored.
     */
    addDefaultShareMenu?: boolean;
}
export interface SettingsIOS {
    /**
     * The color to tint the background of the navigation bar and the toolbar.
     *
     * **Available on**: iOS >= 10.0.
     *
     * **Note**: if the color string is invalid or if the current iOS version
     * is < 10.0, this setting will be ignored.
     */
    preferredBarTintColor?: ColorInput;
    /**
     * The color to tint the control buttons on the navigation bar and the
     * toolbar.
     *
     * **Available on**: iOS >= 10.0.
     *
     * **Note**: if the color string is invalid or if the current iOS version
     * is < 10.0, this setting will be ignored.
     */
    preferredControlTintColor?: ColorInput;
    /**
     * **Available on**: iOS >= 11.0.
     *
     * **Note**: if the value is invalid or if the current iOS version
     * is < 11.0, this setting will be ignored.
     */
    barCollapsingEnabled?: boolean;
    /**
     * A value that specifies whether Safari should enter Reader mode, if it is available.
     *
     * **Available on**: iOS >= 11.0.
     *
     * **Note**: if the value is invalid or if the current iOS version
     * is < 11.0, this setting will be ignored.
     */
    entersReaderIfAvailable?: boolean;
    /**
     * **Available on**: iOS >= 11.0.
     *
     * **Note**: if the value is invalid or if the current iOS version
     * is < 11.0, this setting will be ignored.
     */
    dismissButtonStyle?: IOSDismissButtonStyle;
    [key: string]: any;
}
declare const iosDismissButtonStyles: readonly ["done", "close", "cancel"];
declare type IOSDismissButtonStyle = typeof iosDismissButtonStyles[number];
/**
 * Default settings.
 *
 * These values can be augmented throgh initialization.
 */
export declare const defaultSettings: Required<Settings>;
/**
 * Sanitize the settings based on the running OS.
 *
 * Provided settings will be merged with the default ones.
 * Also, in case of same properties, provided ones have priority
 * over defaults.
 */
export declare function sanitize(os: 'android', settings?: Settings): SettingsAndroid;
export declare function sanitize(os: 'ios', settings?: Settings): SettingsIOS;
export declare function sanitize(os: PlatformOSType, settings?: Settings): {};
/**
 * Initializes the platform-specific settings for the in-app browser
 * experience.
 *
 * This utility function is useful when `openInApp` is used in several
 * portions of the application code base as it allows to provide the
 * settings only once instead of specifing them with each call.
 */
export declare function initialize(settings: Settings): void;
export {};