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// Copyright 2014 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.
//
// KeywordExtensionsDelegateImpl contains the extensions-only logic used by
// KeywordProvider. Overrides KeywordExtensionsDelegate which does nothing.
#ifndef CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_IMPL_H_
#define CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_IMPL_H_
#include <vector>
#include "base/compiler_specific.h"
#include "components/omnibox/autocomplete_input.h"
#include "components/omnibox/autocomplete_match.h"
#include "components/omnibox/autocomplete_provider_listener.h"
#include "components/omnibox/keyword_extensions_delegate.h"
#include "components/omnibox/keyword_provider.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#if !defined(ENABLE_EXTENSIONS)
#error "Should not be included when extensions are disabled"
#endif
class Profile;
class KeywordExtensionsDelegateImpl : public KeywordExtensionsDelegate,
public content::NotificationObserver {
public:
KeywordExtensionsDelegateImpl(Profile* profile, KeywordProvider* provider);
~KeywordExtensionsDelegateImpl() override;
private:
// KeywordExtensionsDelegate:
void IncrementInputId() override;
bool IsEnabledExtension(const std::string& extension_id) override;
bool Start(const AutocompleteInput& input,
bool minimal_changes,
const TemplateURL* template_url,
const base::string16& remaining_input) override;
void EnterExtensionKeywordMode(const std::string& extension_id) override;
void MaybeEndExtensionKeywordMode() override;
// content::NotificationObserver:
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
ACMatches* matches() { return &provider_->matches_; }
void set_done(bool done) {
provider_->done_ = done;
}
// Notifies the KeywordProvider about asynchronous updates from the extension.
void OnProviderUpdate(bool updated_matches);
// Identifies the current input state. This is incremented each time the
// autocomplete edit's input changes in any way. It is used to tell whether
// suggest results from the extension are current.
int current_input_id_;
// The input state at the time we last asked the extension for suggest
// results.
AutocompleteInput extension_suggest_last_input_;
// We remember the last suggestions we've received from the extension in case
// we need to reset our matches without asking the extension again.
std::vector<AutocompleteMatch> extension_suggest_matches_;
// If non-empty, holds the ID of the extension whose keyword is currently in
// the URL bar while the autocomplete popup is open.
std::string current_keyword_extension_id_;
Profile* profile_;
// The owner of this class.
KeywordProvider* provider_;
content::NotificationRegistrar registrar_;
// We need our input IDs to be unique across all profiles, so we keep a global
// UID that each provider uses.
static int global_input_uid_;
DISALLOW_COPY_AND_ASSIGN(KeywordExtensionsDelegateImpl);
};
#endif // CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_IMPL_H_
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