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// Copyright 2018 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
* 'chooser-exception-list' shows a list of chooser exceptions for a given
* chooser type.
*/
Polymer({
is: 'chooser-exception-list',
behaviors: [
I18nBehavior,
ListPropertyUpdateBehavior,
SiteSettingsBehavior,
WebUIListenerBehavior,
],
properties: {
/**
* Array of chooser exceptions to display in the widget.
* @type {!Array<ChooserException>}
*/
chooserExceptions: {
type: Array,
value: function() {
return [];
},
},
/**
* The string ID of the chooser type that this element is displaying data
* for.
* See site_settings/constants.js for possible values.
* @type {!settings.ChooserType}
*/
chooserType: {
observer: 'chooserTypeChanged_',
type: String,
value: settings.ChooserType.NONE,
},
/** @private */
emptyListMessage_: {
type: String,
value: '',
},
/** @private */
hasIncognito_: Boolean,
/** @private */
tooltipText_: String,
},
/** @override */
created: function() {
this.browserProxy_ =
settings.SiteSettingsPrefsBrowserProxyImpl.getInstance();
},
/** @override */
attached: function() {
this.addWebUIListener(
'contentSettingChooserPermissionChanged',
this.objectWithinChooserTypeChanged_.bind(this));
this.addWebUIListener(
'onIncognitoStatusChanged', this.onIncognitoStatusChanged_.bind(this));
this.browserProxy.updateIncognitoStatus();
},
/**
* Called when a chooser exception changes permission and updates the element
* if |category| is equal to the settings category of this element.
* @param {settings.ContentSettingsTypes} category The content settings type
* that represents this permission category.
* @param {settings.ChooserType} chooserType The content settings type that
* represents the chooser data for this permission.
* @private
*/
objectWithinChooserTypeChanged_: function(category, chooserType) {
if (category === this.category && chooserType === this.chooserType) {
this.chooserTypeChanged_();
}
},
/**
* Called for each chooser-exception-list when incognito is enabled or
* disabled. Only called on change (opening N incognito windows only fires one
* message). Another message is sent when the *last* incognito window closes.
* @private
*/
onIncognitoStatusChanged_: function(hasIncognito) {
this.hasIncognito_ = hasIncognito;
this.populateList_();
},
/**
* Configures the visibility of the widget and shows the list.
* @private
*/
chooserTypeChanged_: function() {
if (this.chooserType == settings.ChooserType.NONE) {
return;
}
// Set the message to display when the exception list is empty.
switch (this.chooserType) {
case settings.ChooserType.USB_DEVICES:
this.emptyListMessage_ = this.i18n('noUsbDevicesFound');
break;
case settings.ChooserType.SERIAL_PORTS:
this.emptyListMessage_ = this.i18n('noSerialPortsFound');
break;
default:
this.emptyListMessage_ = '';
}
this.populateList_();
},
/**
* Returns true if there are any chooser exceptions for this chooser type.
* @return {boolean}
* @private
*/
hasExceptions_: function() {
return this.chooserExceptions.length > 0;
},
/**
* Need to use a common tooltip since the tooltip in the entry is cut off from
* the iron-list.
* @param{!CustomEvent<!{target: HTMLElement, text: string}>} e
* @private
*/
onShowTooltip_: function(e) {
this.tooltipText_ = e.detail.text;
const target = e.detail.target;
// paper-tooltip normally determines the target from the |for| property,
// which is a selector. Here paper-tooltip is being reused by multiple
// potential targets.
this.$.tooltip.target = target;
const hide = () => {
this.$.tooltip.hide();
target.removeEventListener('mouseleave', hide);
target.removeEventListener('blur', hide);
target.removeEventListener('tap', hide);
this.$.tooltip.removeEventListener('mouseenter', hide);
};
target.addEventListener('mouseleave', hide);
target.addEventListener('blur', hide);
target.addEventListener('tap', hide);
this.$.tooltip.addEventListener('mouseenter', hide);
this.$.tooltip.show();
},
/**
* Populate the chooser exception list for display.
* @private
*/
populateList_: function() {
this.browserProxy_.getChooserExceptionList(this.chooserType)
.then(exceptionList => this.processExceptions_(exceptionList));
},
/**
* Process the chooser exception list returned from the native layer.
* @param {!Array<RawChooserException>} exceptionList
* @private
*/
processExceptions_: function(exceptionList) {
const exceptions = exceptionList.map(exception => {
const sites = exception.sites.map(this.expandSiteException);
return Object.assign(exception, {sites});
});
if (!this.updateList(
'chooserExceptions', x => x.displayName, exceptions,
true /* uidBasedUpdate */)) {
// The chooser objects have not been changed, so check if their site
// permissions have changed. The |exceptions| and |this.chooserExceptions|
// arrays should be the same length.
const siteUidGetter = x => x.origin + x.embeddingOrigin + x.incognito;
exceptions.forEach((exception, index) => {
const propertyPath = 'chooserExceptions.' + index + '.sites';
this.updateList(propertyPath, siteUidGetter, exception.sites);
}, this);
}
},
});
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