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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 the proxy setup:
*
* - Shows the current proxy settings.
* - Has a button to reload these settings.
* - Shows the log entries for the most recent PROXY_SCRIPT_DECIDER source
* - Shows the list of proxy hostnames that are cached as "bad".
* - Has a button to clear the cached bad proxies.
*/
var ProxyView = (function() {
'use strict';
// We inherit from DivView.
var superClass = DivView;
/**
* @constructor
*/
function ProxyView() {
assertFirstConstructorCall(ProxyView);
// Call superclass's constructor.
superClass.call(this, ProxyView.MAIN_BOX_ID);
this.latestProxySourceId_ = 0;
// Hook up the UI components.
$(ProxyView.RELOAD_SETTINGS_BUTTON_ID).onclick =
g_browser.sendReloadProxySettings.bind(g_browser);
$(ProxyView.CLEAR_BAD_PROXIES_BUTTON_ID).onclick =
g_browser.sendClearBadProxies.bind(g_browser);
// Register to receive proxy information as it changes.
g_browser.addProxySettingsObserver(this, true);
g_browser.addBadProxiesObserver(this, true);
g_browser.sourceTracker.addSourceEntryObserver(this);
}
// ID for special HTML element in category_tabs.html
ProxyView.TAB_HANDLE_ID = 'tab-handle-proxy';
// IDs for special HTML elements in proxy_view.html
ProxyView.MAIN_BOX_ID = 'proxy-view-tab-content';
ProxyView.ORIGINAL_SETTINGS_DIV_ID = 'proxy-view-original-settings';
ProxyView.EFFECTIVE_SETTINGS_DIV_ID = 'proxy-view-effective-settings';
ProxyView.RELOAD_SETTINGS_BUTTON_ID = 'proxy-view-reload-settings';
ProxyView.BAD_PROXIES_TBODY_ID = 'proxy-view-bad-proxies-tbody';
ProxyView.CLEAR_BAD_PROXIES_BUTTON_ID = 'proxy-view-clear-bad-proxies';
ProxyView.PROXY_RESOLVER_LOG_DIV_ID = 'proxy-view-resolver-log';
cr.addSingletonGetter(ProxyView);
ProxyView.prototype = {
// Inherit the superclass's methods.
__proto__: superClass.prototype,
onLoadLogStart: function(data) {
// Need to reset this so the latest proxy source from the dump can be
// identified when the log entries are loaded.
this.latestProxySourceId_ = 0;
},
onLoadLogFinish: function(data, tabData) {
// It's possible that the last PROXY_SCRIPT_DECIDER source was deleted
// from the log, but earlier sources remain. When that happens, clear the
// list of entries here, to avoid displaying misleading information.
if (tabData != this.latestProxySourceId_)
this.clearLog_();
return this.onProxySettingsChanged(data.proxySettings) &&
this.onBadProxiesChanged(data.badProxies);
},
/**
* Save view-specific state.
*
* Save the greatest seen proxy source id, so we will not incorrectly
* identify the log source associated with the current proxy configuration.
*/
saveState: function() {
return this.latestProxySourceId_;
},
onProxySettingsChanged: function(proxySettings) {
// Both |original| and |effective| are dictionaries describing the
// settings.
$(ProxyView.ORIGINAL_SETTINGS_DIV_ID).innerHTML = '';
$(ProxyView.EFFECTIVE_SETTINGS_DIV_ID).innerHTML = '';
if (!proxySettings)
return false;
var original = proxySettings.original;
var effective = proxySettings.effective;
$(ProxyView.ORIGINAL_SETTINGS_DIV_ID).innerText =
proxySettingsToString(original);
$(ProxyView.EFFECTIVE_SETTINGS_DIV_ID).innerText =
proxySettingsToString(effective);
return true;
},
onBadProxiesChanged: function(badProxies) {
$(ProxyView.BAD_PROXIES_TBODY_ID).innerHTML = '';
if (!badProxies)
return false;
// Add a table row for each bad proxy entry.
for (var i = 0; i < badProxies.length; ++i) {
var entry = badProxies[i];
var badUntilDate = timeutil.convertTimeTicksToDate(entry.bad_until);
var tr = addNode($(ProxyView.BAD_PROXIES_TBODY_ID), 'tr');
var nameCell = addNode(tr, 'td');
var badUntilCell = addNode(tr, 'td');
addTextNode(nameCell, entry.proxy_uri);
addTextNode(badUntilCell, badUntilDate.toLocaleString());
}
return true;
},
/**
* Called whenever SourceEntries are updated with new log entries. Updates
* |proxyResolverLogPre_| with the log entries of the PROXY_SCRIPT_DECIDER
* SourceEntry with the greatest id.
*/
onSourceEntriesUpdated: function(sourceEntries) {
for (var i = sourceEntries.length - 1; i >= 0; --i) {
var sourceEntry = sourceEntries[i];
if (sourceEntry.getSourceType() != LogSourceType.PROXY_SCRIPT_DECIDER ||
this.latestProxySourceId_ > sourceEntry.getSourceId()) {
continue;
}
this.latestProxySourceId_ = sourceEntry.getSourceId();
$(ProxyView.PROXY_RESOLVER_LOG_DIV_ID).innerHTML = '';
sourceEntry.printAsText($(ProxyView.PROXY_RESOLVER_LOG_DIV_ID));
}
},
/**
* Clears the display of and log entries for the last proxy lookup.
*/
clearLog_: function() {
// Prevents display of partial logs.
++this.latestProxySourceId_;
$(ProxyView.PROXY_RESOLVER_LOG_DIV_ID).innerHTML = '';
$(ProxyView.PROXY_RESOLVER_LOG_DIV_ID).innerText = 'Deleted.';
},
onSourceEntriesDeleted: function(sourceIds) {
if (sourceIds.indexOf(this.latestProxySourceId_) != -1)
this.clearLog_();
},
onAllSourceEntriesDeleted: function() {
this.clearLog_();
}
};
return ProxyView;
})();
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