react-native-cameraroll/CameraRoll.js

197 lines
6.1 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule CameraRoll
* @flow
*/
'use strict';
var ReactPropTypes = require('react/lib/ReactPropTypes');
var RCTCameraRollManager = require('NativeModules').CameraRollManager;
var createStrictShapeTypeChecker = require('createStrictShapeTypeChecker');
var deepFreezeAndThrowOnMutationInDev =
require('deepFreezeAndThrowOnMutationInDev');
var invariant = require('fbjs/lib/invariant');
var GROUP_TYPES_OPTIONS = [
'Album',
'All',
'Event',
'Faces',
'Library',
'PhotoStream',
'SavedPhotos', // default
];
var ASSET_TYPE_OPTIONS = [
'All',
'Videos',
'Photos', // default
];
// Flow treats Object and Array as disjoint types, currently.
deepFreezeAndThrowOnMutationInDev((GROUP_TYPES_OPTIONS: any));
deepFreezeAndThrowOnMutationInDev((ASSET_TYPE_OPTIONS: any));
/**
* Shape of the param arg for the `getPhotos` function.
*/
var getPhotosParamChecker = createStrictShapeTypeChecker({
/**
* The number of photos wanted in reverse order of the photo application
* (i.e. most recent first for SavedPhotos).
*/
first: ReactPropTypes.number.isRequired,
/**
* A cursor that matches `page_info { end_cursor }` returned from a previous
* call to `getPhotos`
*/
after: ReactPropTypes.string,
/**
* Specifies which group types to filter the results to.
*/
groupTypes: ReactPropTypes.oneOf(GROUP_TYPES_OPTIONS),
/**
* Specifies filter on group names, like 'Recent Photos' or custom album
* titles.
*/
groupName: ReactPropTypes.string,
/**
* Specifies filter on asset type
*/
assetType: ReactPropTypes.oneOf(ASSET_TYPE_OPTIONS),
/**
* Filter by mimetype (e.g. image/jpeg).
*/
mimeTypes: ReactPropTypes.arrayOf(ReactPropTypes.string),
});
/**
* Shape of the return value of the `getPhotos` function.
*/
var getPhotosReturnChecker = createStrictShapeTypeChecker({
edges: ReactPropTypes.arrayOf(createStrictShapeTypeChecker({
node: createStrictShapeTypeChecker({
type: ReactPropTypes.string.isRequired,
group_name: ReactPropTypes.string.isRequired,
image: createStrictShapeTypeChecker({
uri: ReactPropTypes.string.isRequired,
height: ReactPropTypes.number.isRequired,
width: ReactPropTypes.number.isRequired,
isStored: ReactPropTypes.bool,
}).isRequired,
timestamp: ReactPropTypes.number.isRequired,
location: createStrictShapeTypeChecker({
latitude: ReactPropTypes.number,
longitude: ReactPropTypes.number,
altitude: ReactPropTypes.number,
heading: ReactPropTypes.number,
speed: ReactPropTypes.number,
}),
}).isRequired,
})).isRequired,
page_info: createStrictShapeTypeChecker({
has_next_page: ReactPropTypes.bool.isRequired,
start_cursor: ReactPropTypes.string,
end_cursor: ReactPropTypes.string,
}).isRequired,
});
/**
* `CameraRoll` provides access to the local camera roll / gallery.
*/
class CameraRoll {
static GroupTypesOptions: Array<string>;
static AssetTypeOptions: Array<string>;
static saveImageWithTag(tag: string): Promise<Object> {
console.warn('CameraRoll.saveImageWithTag is deprecated. Use CameraRoll.saveToCameraRoll instead');
return this.saveToCameraRoll(tag, 'photo');
}
/**
* Saves the photo or video to the camera roll / gallery.
*
* On Android, the tag must be a local image or video URI, such as `"file:///sdcard/img.png"`.
*
* On iOS, the tag can be any image URI (including local, remote asset-library and base64 data URIs)
* or a local video file URI (remote or data URIs are not supported for saving video at this time).
*
* If the tag has a file extension of .mov or .mp4, it will be inferred as a video. Otherwise
* it will be treated as a photo. To override the automatic choice, you can pass an optional
* `type` parameter that must be one of 'photo' or 'video'.
*
* Returns a Promise which will resolve with the new URI.
*/
static saveToCameraRoll(tag: string, type?: 'photo' | 'video'): Promise<Object> {
invariant(
typeof tag === 'string',
'CameraRoll.saveToCameraRoll must be a valid string.'
);
invariant(
type === 'photo' || type === 'video' || type === undefined,
`The second argument to saveToCameraRoll must be 'photo' or 'video'. You passed ${type}`
);
let mediaType = 'photo';
if (type) {
mediaType = type;
} else if (['mov', 'mp4'].indexOf(tag.split('.').slice(-1)[0]) >= 0) {
mediaType = 'video';
}
return RCTCameraRollManager.saveToCameraRoll(tag, mediaType);
}
/**
* Returns a Promise with photo identifier objects from the local camera
* roll of the device matching shape defined by `getPhotosReturnChecker`.
*
* @param {object} params See `getPhotosParamChecker`.
*
* Returns a Promise which when resolved will be of shape `getPhotosReturnChecker`.
*/
static getPhotos(params) {
if (__DEV__) {
getPhotosParamChecker({params}, 'params', 'CameraRoll.getPhotos');
}
if (arguments.length > 1) {
console.warn('CameraRoll.getPhotos(tag, success, error) is deprecated. Use the returned Promise instead');
let successCallback = arguments[1];
if (__DEV__) {
const callback = arguments[1];
successCallback = (response) => {
getPhotosReturnChecker(
{response},
'response',
'CameraRoll.getPhotos callback'
);
callback(response);
};
}
const errorCallback = arguments[2] || ( () => {} );
RCTCameraRollManager.getPhotos(params).then(successCallback, errorCallback);
}
// TODO: Add the __DEV__ check back in to verify the Promise result
return RCTCameraRollManager.getPhotos(params);
}
}
CameraRoll.GroupTypesOptions = GROUP_TYPES_OPTIONS;
CameraRoll.AssetTypeOptions = ASSET_TYPE_OPTIONS;
module.exports = CameraRoll;