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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.
#ifndef CHROME_BROWSER_AUTOCOMPLETE_HISTORY_PROVIDER_H_
#define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_PROVIDER_H_
#pragma once
#include "base/compiler_specific.h"
#include "chrome/browser/autocomplete/autocomplete.h"
// This class is a base class for the history autocomplete providers and
// provides functions useful to all derived classes.
class HistoryProvider : public AutocompleteProvider {
public:
virtual void DeleteMatch(const AutocompleteMatch& match) OVERRIDE;
protected:
HistoryProvider(ACProviderListener* listener,
Profile* profile,
const char* name);
// Fixes up user URL input to make it more possible to match against. Among
// many other things, this takes care of the following:
// * Prepending file:// to file URLs
// * Converting drive letters in file URLs to uppercase
// * Converting case-insensitive parts of URLs (like the scheme and domain)
// to lowercase
// * Convert spaces to %20s
// Note that we don't do this in AutocompleteInput's constructor, because if
// e.g. we convert a Unicode hostname to punycode, other providers will show
// output that surprises the user ("Search Google for xn--6ca.com").
// Returns false if the fixup attempt resulted in an empty string (which
// providers generally can't do anything with).
static bool FixupUserInput(AutocompleteInput* input);
// Trims "http:" and up to two subsequent slashes from |url|. Returns the
// number of characters that were trimmed.
// NOTE: For a view-source: URL, this will trim from after "view-source:" and
// return 0.
static size_t TrimHttpPrefix(string16* url);
// Returns true if inline autocompletion should be prevented. Use this instead
// of |input.prevent_inline_autocomplete| if the input is passed through
// FixupUserInput(). This method returns true if
// |input.prevent_inline_autocomplete()| is true, or the input text contains
// trailing whitespace.
bool PreventInlineAutocomplete(const AutocompleteInput& input);
};
#endif // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_PROVIDER_H_
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