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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* This view displays information on ChromeOS specific features.
*/
var CrosView = (function() {
'use strict';
var fileContent;
var passcode = '';
/**
* Send file contents and passcode to C++ cros network library.
*
* @private
*/
function importONCFile_() {
if (fileContent)
g_browser.importONCFile(fileContent, passcode);
else
setParseStatus_(false);
}
/**
* Set the passcode var, and trigger onc import.
*
* @private
* @param {string} passcode
*/
function setPasscode_(value) {
passcode = value;
if (passcode)
importONCFile_();
}
/**
* Unhide the passcode prompt input field and give it focus.
*
* @private
*/
function promptForPasscode_() {
$(CrosView.PASSCODE_ID).hidden = false;
$(CrosView.PASSCODE_INPUT_ID).focus();
$(CrosView.PASSCODE_INPUT_ID).select();
}
/**
* Set the fileContent var, and trigger onc import if the file appears to
* not be encrypted, or prompt for passcode if the file is encrypted.
*
* @private
* @param {string} text contents of selected file.
*/
function setFileContent_(result) {
fileContent = result;
// Check if file is encrypted.
if (fileContent.search(/begin pgp message/i) == -1) {
// Not encrypted, don't need passcode.
importONCFile_();
} else {
promptForPasscode_();
}
}
/**
* Set ONC file parse status.
*
* @private
*/
function setParseStatus_(success) {
var parseStatus = $(CrosView.PARSE_STATUS_ID);
parseStatus.hidden = false;
parseStatus.textContent = status ?
"ONC file successfully parsed" : "ONC file parse failed";
reset_();
}
/**
* Add event listeners for the file selection and passcode input fields.
*
* @private
*/
function addEventListeners_() {
$(CrosView.IMPORT_ONC_ID).addEventListener('change', function(event) {
$(CrosView.PARSE_STATUS_ID).hidden = true;
var file = event.target.files[0];
var reader = new FileReader();
reader.onloadend = function(e) {
setFileContent_(this.result);
};
reader.readAsText(file);
}, false);
$(CrosView.PASSCODE_INPUT_ID).addEventListener('change', function(event) {
setPasscode_(this.value);
}, false);
}
/**
* Reset fileContent and passcode vars.
*
* @private
*/
function reset_() {
fileContent = undefined;
passcode = '';
$(CrosView.PASSCODE_ID).hidden = true;
}
/**
* @constructor
* @extends {DivView}
*/
function CrosView() {
assertFirstConstructorCall(CrosView);
// Call superclass's constructor.
DivView.call(this, CrosView.MAIN_BOX_ID);
g_browser.addCrosONCFileParseObserver(this);
addEventListeners_();
}
// ID for special HTML element in category_tabs.html
CrosView.TAB_HANDLE_ID = 'tab-handle-chromeos';
CrosView.MAIN_BOX_ID = 'chromeos-view-tab-content';
CrosView.IMPORT_ONC_ID = 'chromeos-view-import-onc';
CrosView.PASSCODE_ID = 'chromeos-view-password-div';
CrosView.PASSCODE_INPUT_ID = 'chromeos-view-onc-password';
CrosView.PARSE_STATUS_ID = 'chromeos-view-parse-status';
cr.addSingletonGetter(CrosView);
CrosView.prototype = {
// Inherit from DivView.
__proto__: DivView.prototype,
onONCFileParse: setParseStatus_,
};
return CrosView;
})();
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