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Code Issues Releases Wiki Activity

ensure no lost "change" events (#307)

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This commit is contained in:
gorhill 2014-10-12 14:55:20 -04:00
parent e9ed073e42
commit 9e88d0f60d
2 changed files with 24 additions and 21 deletions
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3
about.html
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@ -25,7 +25,8 @@
<div style="margin:1em 0 0 0;">
<p><button type="button" id="export" data-i18n="aboutBackupDataButton"></button>
<button type="button" id="import" data-i18n="aboutRestoreDataButton"></button>
<button type="button" id="import" data-i18n="aboutRestoreDataButton"></button>
<input id="restoreFilePicker" type="file" accept="text/plain" style="display:none;">
<p>
<p><button type="button" id="reset" data-i18n="aboutResetDataButton">Start from scratch...</button>
</div>

42
js/about.js
View File

@ -45,11 +45,7 @@ var exportToFile = function() {
/******************************************************************************/
var importFromFile = function() {
var input = document.createElement('input');
input.setAttribute('type', 'file');
input.setAttribute('accept', 'text/plain');
var handleImportFilePicker = function() {
var fileReaderOnLoadHandler = function() {
var userData;
try {
@ -70,21 +66,26 @@ var importFromFile = function() {
}
};
var filePickerOnChangeHandler = function() {
input.removeEventListener('change', filePickerOnChangeHandler);
var file = this.files[0];
if ( !file ) {
return;
}
if ( file.type.indexOf('text') !== 0 ) {
return;
}
var fr = new FileReader();
fr.onload = fileReaderOnLoadHandler;
fr.readAsText(file);
};
var file = this.files[0];
if ( file === undefined || file.name === '' ) {
return;
}
if ( file.type.indexOf('text') !== 0 ) {
return;
}
var fr = new FileReader();
fr.onload = fileReaderOnLoadHandler;
fr.readAsText(file);
};
input.addEventListener('change', filePickerOnChangeHandler);
/******************************************************************************/
var startImportFilePicker = function() {
var input = document.getElementById('restoreFilePicker');
// Reset to empty string, this will ensure an change event is properly
// triggered if the user pick a file, even if it is the same as the last
// one picked.
input.value = '';
input.click();
};
@ -102,8 +103,9 @@ var resetUserData = function() {
uDom('#aboutVersion').html(chrome.runtime.getManifest().version);
uDom('#export').on('click', exportToFile);
uDom('#import').on('click', importFromFile);
uDom('#import').on('click', startImportFilePicker);
uDom('#reset').on('click', resetUserData);
uDom('#restoreFilePicker').on('change', handleImportFilePicker);
/******************************************************************************/