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restyling backup/fileSaveLoad.js

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This commit is contained in:
Jeremy Schomery 2017-02-03 12:54:47 +03:30
parent 92d0acfbe3
commit b07cf590b9
1 changed files with 38 additions and 32 deletions
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38
backup/fileSaveLoad.js
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@ -1,13 +1,19 @@
var STYLISH_DUMP_FILE_EXT = ".txt"; 'use strict';
var STYLISH_DEFAULT_SAVE_NAME = "stylus-mm-dd-yyy" + STYLISH_DUMP_FILE_EXT;
function saveAsFile(text, fileName, dialog) { var STYLISH_DUMP_FILE_EXT = '.txt';
var STYLISH_DEFAULT_SAVE_NAME = 'stylus-mm-dd-yyy' + STYLISH_DUMP_FILE_EXT;
function saveAsFile (text, fileName, dialog) {
fileName = fileName || STYLISH_DEFAULT_SAVE_NAME; fileName = fileName || STYLISH_DEFAULT_SAVE_NAME;
dialog = typeof dialog === "boolean" ? dialog : true; dialog = typeof dialog === 'boolean' ? dialog : true;
return new Promise(function(resolve){ return new Promise(function (resolve) {
var fileContent = 'data:text/plain;charset=utf-8,' + encodeURIComponent(text); var fileContent = 'data:text/plain;charset=utf-8,' + encodeURIComponent(text);
chrome.downloads.download({filename: fileName, saveAs: true, url: fileContent}, resolve) chrome.downloads.download({
filename: fileName,
saveAs: true,
url: fileContent
}, resolve);
}); });
} }
@ -19,28 +25,28 @@ function saveAsFile(text, fileName, dialog) {
* gets it's path, * gets it's path,
* gets content of it by ajax * gets content of it by ajax
*/ */
function loadFromFile(formatToFilter){ function loadFromFile (formatToFilter) {
return new Promise(function(resolve){ return new Promise(function (resolve) {
var fileInput = document.createElement('input'); var fileInput = document.createElement('input');
fileInput.style = "display: none;"; fileInput.style = 'display: none;';
fileInput.type = "file"; fileInput.type = 'file';
fileInput.accept = formatToFilter || STYLISH_DUMP_FILE_EXT; fileInput.accept = formatToFilter || STYLISH_DUMP_FILE_EXT;
fileInput.acceptCharset = "utf8"; fileInput.acceptCharset = 'utf-8';
document.body.appendChild(fileInput); document.body.appendChild(fileInput);
fileInput.initialValue = fileInput.value; fileInput.initialValue = fileInput.value;
fileInput.addEventListener('change', changeHandler); function changeHandler() {
function changeHandler(){ if (fileInput.value !== fileInput.initialValue) {
if (fileInput.value !== fileInput.initialValue){
var fReader = new FileReader(); var fReader = new FileReader();
fReader.onloadend = function (event){ fReader.onloadend = function (event) {
fileInput.removeEventListener('change', changeHandler); fileInput.removeEventListener('change', changeHandler);
fileInput.remove(); fileInput.remove();
resolve(event.target.result); resolve(event.target.result);
}; };
fReader.readAsText(fileInput.files[0], 'utf-8') fReader.readAsText(fileInput.files[0], 'utf-8');
} }
} }
fileInput.addEventListener('change', changeHandler);
fileInput.click(); fileInput.click();
}); });
} }