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// Copyright (c) 2012 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
* Class representing an entry in the host-list portion of the home screen.
*/
'use strict';
/** @suppress {duplicate} */
var remoting = remoting || {};
/**
* The deserialized form of the chromoting host as returned by Apiary.
* Note that the object has more fields than are detailed below--these
* are just the ones that we refer to directly.
* @constructor
*/
remoting.Host = function() {
/** @type {string} */
this.hostName = '';
/** @type {string} */
this.hostId = '';
/** @type {string} */
this.status = '';
/** @type {string} */
this.jabberId = '';
/** @type {string} */
this.publicKey = '';
};
/**
* An entry in the host table.
* @constructor
*/
remoting.HostTableEntry = function() {
/** @type {remoting.Host} */
this.host = null;
/** @type {Element} */
this.tableRow = null;
/** @type {Element} @private */
this.hostNameCell_ = null;
/** @type {function(remoting.HostTableEntry):void} @private */
this.onRename_ = function(hostId) {};
/** @type {function(remoting.HostTableEntry):void} @private */
this.onDelete_ = function(hostId) {};
// References to event handlers so that they can be removed.
/** @type {function():void} @private */
this.onBlurReference_ = function() {};
/** @type {function():void} @private */
this.onConfirmDeleteReference_ = function() {};
/** @type {function():void} @private */
this.onCancelDeleteReference_ = function() {};
};
/**
* Create the HTML elements for this entry.
* @param {remoting.Host} host The host, as obtained from Apiary.
* @param {function(remoting.HostTableEntry):void} onRename Callback for
* rename operations.
* @param {function(remoting.HostTableEntry):void} onDelete Callback for
* delete operations.
*/
remoting.HostTableEntry.prototype.init = function(host, onRename, onDelete) {
this.host = host;
this.onRename_ = onRename;
this.onDelete_ = onDelete;
/** @type {remoting.HostTableEntry} */
var that = this;
this.tableRow = /** @type {HTMLElement} */ document.createElement('div');
this.tableRow.classList.add('section-row');
// Create the host icon cell.
var hostIcon = /** @type {HTMLElement} */ document.createElement('img');
hostIcon.src = 'icon_host.png';
hostIcon.classList.add('host-list-main-icon');
this.tableRow.appendChild(hostIcon);
// Create the host name cell.
this.hostNameCell_ = /** @type {HTMLElement} */ document.createElement('div');
this.hostNameCell_.classList.add('box-spacer');
this.setHostName_();
this.tableRow.appendChild(this.hostNameCell_);
// Create the host status cell.
if (host.status == 'ONLINE') {
var hostUrl = chrome.extension.getURL('main.html') +
'?mode=me2me&hostId=' + encodeURIComponent(host.hostId);
var startMe2Me = function() { window.location.replace(hostUrl); };
this.hostNameCell_.addEventListener('click', startMe2Me, false);
hostIcon.addEventListener('click', startMe2Me, false);
this.tableRow.classList.add('clickable');
this.tableRow.classList.add('host-online');
this.tableRow.title = chrome.i18n.getMessage(
/*i18n-content*/'TOOLTIP_CONNECT', host.hostName);
} else {
this.tableRow.classList.add('host-offline');
}
// Create the host rename cell.
var editButton = /** @type {HTMLElement} */ document.createElement('img');
var beginRename = function() { that.beginRename_(); };
editButton.addEventListener('click', beginRename, true);
editButton.classList.add('clickable');
editButton.classList.add('host-list-edit');
editButton.src = 'icon_pencil.png';
editButton.classList.add('host-list-rename-icon');
editButton.title = chrome.i18n.getMessage(/*i18n-content*/'TOOLTIP_RENAME');
this.tableRow.appendChild(editButton);
// Create the host delete cell.
var deleteButton = /** @type {HTMLElement} */ document.createElement('div');
deleteButton.addEventListener('click',
function() { that.showDeleteConfirmation_(); },
false);
deleteButton.classList.add('clickable');
deleteButton.classList.add('host-list-edit');
var crossImage = /** @type {HTMLElement} */ document.createElement('img');
crossImage.src = 'icon_cross.png';
crossImage.classList.add('host-list-remove-icon');
deleteButton.appendChild(crossImage);
deleteButton.title = chrome.i18n.getMessage(/*i18n-content*/'TOOLTIP_DELETE');
this.tableRow.appendChild(deleteButton);
};
/**
* Prepare the host for renaming by replacing its name with an edit box.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.beginRename_ = function() {
var editBox = /** @type {HTMLInputElement} */ document.createElement('input');
editBox.type = 'text';
editBox.value = this.host.hostName;
this.hostNameCell_.innerHTML = '';
this.hostNameCell_.appendChild(editBox);
editBox.select();
/** @type {remoting.HostTableEntry} */
var that = this;
this.onBlurReference_ = function() { that.commitRename_(); };
editBox.addEventListener('blur', this.onBlurReference_, false);
/** @param {Event} event The keydown event. */
var onKeydown = function(event) { that.onKeydown_(event); }
editBox.addEventListener('keydown', onKeydown, false);
};
/**
* Accept the hostname entered by the user.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.commitRename_ = function() {
var editBox = this.hostNameCell_.querySelector('input');
if (editBox) {
if (this.host.hostName != editBox.value) {
this.host.hostName = editBox.value;
if (this.host.status == 'ONLINE') {
this.tableRow.title = chrome.i18n.getMessage(
/*i18n-content*/'TOOLTIP_CONNECT', this.host.hostName);
}
this.onRename_(this);
}
this.removeEditBox_();
}
};
/**
* Prompt the user to confirm or cancel deletion of a host.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.showDeleteConfirmation_ = function() {
var message = document.getElementById('confirm-host-delete-message');
l10n.localizeElement(message, this.host.hostName);
/** @type {remoting.HostTableEntry} */
var that = this;
var confirm = document.getElementById('confirm-host-delete');
var cancel = document.getElementById('cancel-host-delete');
this.onConfirmDeleteReference_ = function() { that.confirmDelete_(); };
this.onCancelDeleteReference_ = function() { that.cancelDelete_(); };
confirm.addEventListener('click', this.onConfirmDeleteReference_, false);
cancel.addEventListener('click', this.onCancelDeleteReference_, false);
remoting.setMode(remoting.AppMode.CONFIRM_HOST_DELETE);
};
/**
* Confirm deletion of a host.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.confirmDelete_ = function() {
this.onDelete_(this);
this.cleanUpConfirmationEventListeners_();
remoting.setMode(remoting.AppMode.HOME);
};
/**
* Cancel deletion of a host.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.cancelDelete_ = function() {
this.cleanUpConfirmationEventListeners_();
remoting.setMode(remoting.AppMode.HOME);
};
/**
* Remove the confirm and cancel event handlers, which refer to this object.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.cleanUpConfirmationEventListeners_ =
function() {
var confirm = document.getElementById('confirm-host-delete');
var cancel = document.getElementById('cancel-host-delete');
confirm.removeEventListener('click', this.onConfirmDeleteReference_, false);
cancel.removeEventListener('click', this.onCancelDeleteReference_, false);
this.onCancelDeleteReference_ = function() {};
this.onConfirmDeleteReference_ = function() {};
};
/**
* Remove the edit box corresponding to the specified host, and reset its name.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.removeEditBox_ = function() {
var editBox = this.hostNameCell_.querySelector('input');
if (editBox) {
// onblur will fire when the edit box is removed, so remove the hook.
editBox.removeEventListener('blur', this.onBlurReference_, false);
}
this.hostNameCell_.innerHTML = ''; // Remove the edit box.
this.setHostName_();
};
/**
* Create the DOM nodes for the hostname part of the table entry.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.setHostName_ = function() {
var hostNameNode = /** @type {HTMLElement} */ document.createElement('span');
if (this.host.status == 'ONLINE') {
hostNameNode.innerText = this.host.hostName;
} else {
hostNameNode.innerText = chrome.i18n.getMessage(/*i18n-content*/'OFFLINE',
this.host.hostName);
}
hostNameNode.classList.add('host-list-label');
this.hostNameCell_.appendChild(hostNameNode);
};
/**
* Handle a key event while the user is typing a host name
* @param {Event} event The keyboard event.
* @return {void} Nothing.
* @private
*/
remoting.HostTableEntry.prototype.onKeydown_ = function(event) {
if (event.which == 27) { // Escape
this.removeEditBox_();
} else if (event.which == 13) { // Enter
this.commitRename_();
}
};
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