80 lines
2.6 KiB
JavaScript
80 lines
2.6 KiB
JavaScript
/*
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*
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*/
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/**
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* Constructor.
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* name {DOMString} name of the file, without path information
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* fullPath {DOMString} the full path of the file, including the name
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* type {DOMString} mime type
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* lastModifiedDate {Date} last modified date
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* size {Number} size of the file in bytes
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*/
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var File = function(name, localURL, type, lastModifiedDate, size){
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this.name = name || '';
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this.localURL = localURL || null;
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this.type = type || null;
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this.lastModified = lastModifiedDate || null;
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// For backwards compatibility, store the timestamp in lastModifiedDate as well
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this.lastModifiedDate = lastModifiedDate || null;
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this.size = size || 0;
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// These store the absolute start and end for slicing the file.
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this.start = 0;
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this.end = this.size;
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};
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/**
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* Returns a "slice" of the file. Since Cordova Files don't contain the actual
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* content, this really returns a File with adjusted start and end.
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* Slices of slices are supported.
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* start {Number} The index at which to start the slice (inclusive).
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* end {Number} The index at which to end the slice (exclusive).
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*/
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File.prototype.slice = function(start, end) {
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var size = this.end - this.start;
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var newStart = 0;
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var newEnd = size;
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if (arguments.length) {
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if (start < 0) {
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newStart = Math.max(size + start, 0);
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} else {
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newStart = Math.min(size, start);
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}
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}
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if (arguments.length >= 2) {
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if (end < 0) {
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newEnd = Math.max(size + end, 0);
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} else {
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newEnd = Math.min(end, size);
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}
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}
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var newFile = new File(this.name, this.localURL, this.type, this.lastModified, this.size);
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newFile.start = this.start + newStart;
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newFile.end = this.start + newEnd;
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return newFile;
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};
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module.exports = File;
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