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// Copyright 2015 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.
/**
* @fileoverview Polymer element for rendering network icons based on ONC
* state properties.
*/
Polymer({
is: 'cr-network-icon',
properties: {
/**
* If set, the ONC properties will be used to display the icon. This may
* either be the complete set of NetworkProperties or the subset of
* NetworkStateProperties.
* @type {!CrOnc.NetworkProperties|!CrOnc.NetworkStateProperties|undefined}
*/
networkState: Object,
/**
* If set, the device state for the network type. Otherwise it defaults to
* null rather than undefined so that it does not block computed bindings.
* @type {?CrOnc.DeviceStateProperties}
*/
deviceState: {
type: Object,
value: null,
},
/**
* If true, the icon is part of a list of networks and may be displayed
* differently, e.g. the disconnected image will never be shown for
* list items.
*/
isListItem: {
type: Boolean,
value: false,
},
},
/**
* Number of network icons for different cellular or wifi network signal
* strengths.
* @private @const
*/
networkIconCount_: 5,
/**
* @return {string} The name of the svg icon image to show.
* @private
*/
getIconClass_: function() {
if (!this.networkState) {
return '';
}
const type = this.networkState.Type;
if (type == CrOnc.Type.ETHERNET) {
return 'ethernet';
}
if (type == CrOnc.Type.VPN) {
return 'vpn';
}
const prefix = (type == CrOnc.Type.CELLULAR || type == CrOnc.Type.TETHER) ?
'cellular-' :
'wifi-';
if (!this.isListItem && !this.networkState.GUID) {
const deviceState = this.deviceState;
if (!deviceState || deviceState.State == 'Enabled' ||
deviceState.State == 'Enabling') {
return prefix + 'no-network';
}
return prefix + 'off';
}
const connectionState = this.networkState.ConnectionState;
if (connectionState == CrOnc.ConnectionState.CONNECTING) {
return prefix + 'connecting';
}
if (!this.isListItem &&
(!connectionState ||
connectionState == CrOnc.ConnectionState.NOT_CONNECTED)) {
return prefix + 'not-connected';
}
const strength = CrOnc.getSignalStrength(this.networkState);
return prefix + this.strengthToIndex_(strength).toString(10);
},
/**
* @param {number} strength The signal strength from [0 - 100].
* @return {number} An index from 0 to |this.networkIconCount_ - 1|
* corresponding to |strength|.
* @private
*/
strengthToIndex_: function(strength) {
if (strength <= 0) {
return 0;
}
if (strength >= 100) {
return this.networkIconCount_ - 1;
}
const zeroBasedIndex =
Math.trunc((strength - 1) * (this.networkIconCount_ - 1) / 100);
return zeroBasedIndex + 1;
},
/**
* @return {boolean}
* @private
*/
showTechnology_: function() {
return this.getTechnology_() != '';
},
/**
* @return {string}
* @private
*/
getTechnology_: function() {
const networkState = this.networkState;
if (!networkState) {
return '';
}
const type = networkState.Type;
if (type == CrOnc.Type.WI_MAX) {
return 'network:4g';
}
if (type == CrOnc.Type.CELLULAR && networkState.Cellular) {
const technology =
this.getTechnologyId_(networkState.Cellular.NetworkTechnology);
if (technology != '') {
return 'network:' + technology;
}
}
return '';
},
/**
* @param {string|undefined} networkTechnology
* @return {string}
* @private
*/
getTechnologyId_: function(networkTechnology) {
switch (networkTechnology) {
case CrOnc.NetworkTechnology.CDMA1XRTT:
return 'badge-1x';
case CrOnc.NetworkTechnology.EDGE:
return 'badge-edge';
case CrOnc.NetworkTechnology.EVDO:
return 'badge-evdo';
case CrOnc.NetworkTechnology.GPRS:
case CrOnc.NetworkTechnology.GSM:
return 'badge-gsm';
case CrOnc.NetworkTechnology.HSPA:
return 'badge-hspa';
case CrOnc.NetworkTechnology.HSPA_PLUS:
return 'badge-hspa-plus';
case CrOnc.NetworkTechnology.LTE:
return 'badge-lte';
case CrOnc.NetworkTechnology.LTE_ADVANCED:
return 'badge-lte-advanced';
case CrOnc.NetworkTechnology.UMTS:
return 'badge-3g';
}
return '';
},
/**
* @return {boolean}
* @private
*/
showSecure_: function() {
const networkState = this.networkState;
if (!this.networkState) {
return false;
}
if (networkState.Type != CrOnc.Type.WI_FI || !networkState.WiFi) {
return false;
}
if (!this.isListItem &&
networkState.ConnectionState == CrOnc.ConnectionState.NOT_CONNECTED) {
return false;
}
const security = CrOnc.getStateOrActiveString(networkState.WiFi.Security);
return !!security && security != 'None';
},
});
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