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/**
* @file llautoreplace.h
* @brief Auto Replace Manager
* $LicenseInfo:firstyear=2012&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2012, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LLAUTOREPLACE_H
#define LLAUTOREPLACE_H
#include "lllineeditor.h"
class LLAutoReplace;
/** The configuration data for the LLAutoReplace object
*
* This is a separate class so that the LLFloaterAutoReplaceSettings
* can have a copy of the configuration to manipulate before committing
* the changes back to the LLAutoReplace singleton that provides the
* autoreplace callback.
*/
class LLAutoReplaceSettings
{
public:
LLAutoReplaceSettings();
~LLAutoReplaceSettings();
/// Constructor for creating a tempory copy of the current settings
LLAutoReplaceSettings(const LLAutoReplaceSettings& settings);
/// Replace the current settings with new ones and save them to the user settings file
void set(const LLAutoReplaceSettings& newSettings);
/// Load the current settings read from an LLSD file
bool setFromLLSD(const LLSD& settingsFromLLSD);
///< @returns whether or not the settingsFromLLSD were valid
// ================================================================
///@{ @name List Operations
// ================================================================
/// @returns the configured list names as an LLSD Array of strings
LLSD getListNames();
/// Status values returned from the addList method
typedef enum
{
AddListOk,
AddListDuplicateName,
AddListInvalidList,
} AddListResult;
/// Inserts a new list at the end of the priority order
AddListResult addList(const LLSD& newList);
/// Removes the named list, @returns false if not found
bool removeReplacementList(std::string listName);
/// Move the named list up in the priority order
bool increaseListPriority(std::string listName);
///< @returns false if the list is not found
/// Move the named list down in the priority order
bool decreaseListPriority(std::string listName);
///< @returns false if the list is not found
/// Get a copy of just one list (for saving to an export file)
const LLSD* exportList(std::string listName);
/// @returns an LLSD map
/// Checks for required elements, and that each has the correct type.
bool listIsValid(const LLSD& listSettings);
/// Checks for required elements, and that each has the correct type.
bool listNameIs(const LLSD& listSettings);
/// Checks to see if a new lists name conflicts with one in the settings
bool listNameIsUnique(const LLSD& newList);
/// @note must be called with LLSD that has passed listIsValid
/// Initializes emptyList to an empty list named 'Empty'
static void createEmptyList(LLSD& emptyList);
/// Resets the name of a list to a new value
static void setListName(LLSD& list, const std::string& newName);
/// Gets the name of a list
static std::string getListName(LLSD& list);
///@}
// ================================================================
///@{ @name Replacement Entry Operations
// ================================================================
/// Get the replacements specified by a given list
const LLSD* getListEntries(std::string listName);
///< @returns an LLSD Map of keyword -> replacement test pairs
/// Get the replacement for the keyword from the specified list
std::string replacementFor(std::string keyword, std::string listName);
/// Adds a keywword/replacement pair to the named list
bool addEntryToList(std::string keyword, std::string replacement, std::string listName);
/// Removes the keywword and its replacement from the named list
bool removeEntryFromList(std::string keyword, std::string listName);
/**
* Look for currentWord in the lists in order, returning any substitution found
* If no configured substitution is found, returns currentWord
*/
std::string replaceWord(const std::string currentWord /**< word to search for */ );
/// Provides a hard-coded example of settings
LLSD getExampleLLSD();
/// Get the actual settings as LLSD
const LLSD& getAsLLSD();
///< @note for use only in AutoReplace::saveToUserSettings
private:
/// Efficiently and safely compare list names
bool listNameMatches( const LLSD& list, const std::string name );
/// The actual llsd data structure
LLSD mLists;
static const std::string AUTOREPLACE_LIST_NAME; ///< key for looking up list names
static const std::string AUTOREPLACE_LIST_REPLACEMENTS; ///< key for looking up replacement map
/**<
* LLSD structure of the lists
* - The configuration is an array (mLists),
* - Each entry in the array is a replacement list
* - Each replacement list is a map with three keys:
* @verbatim
* "name" String the name of the list
* "replacements" Map keyword -> replacement pairs
*
* <llsd>
* <array>
* <map>
* <key>name</key> <string>List 1</string>
* <key>data</key>
* <map>
* <key>keyword1</key> <string>replacement1</string>
* <key>keyword2</key> <string>replacement2</string>
* </map>
* </map>
* <map>
* <key>name</key> <string>List 2</string>
* <key>data</key>
* <map>
* <key>keyword1</key> <string>replacement1</string>
* <key>keyword2</key> <string>replacement2</string>
* </map>
* </map>
* </array>
* </llsd>
* @endverbatim
*/
};
/** Provides a facility to auto-replace text dynamically as it is entered.
*
* When the end of a word is detected (defined as any punctuation character,
* or any whitespace except newline or return), the preceding word is used
* as a lookup key in an ordered list of maps. If a match is found in any
* map, the keyword is replaced by the associated value from the map.
*
* See the autoreplaceCallback method for how to add autoreplace functionality
* to a text entry tool.
*/
class LLAutoReplace : public LLSingleton<LLAutoReplace>
{
public:
LLAutoReplace();
~LLAutoReplace();
/// @return a pointer to the active instance
static LLAutoReplace* getInstance();
/// Callback that provides the hook for use in text entry methods
void autoreplaceCallback(LLUIString& inputText, S32& cursorPos);
/// Get a copy of the current settings
LLAutoReplaceSettings getSettings();
/// Commit new settings after making changes
void setSettings(const LLAutoReplaceSettings& settings);
private:
friend class LLSingleton<LLAutoReplace>;
static LLAutoReplace* sInstance; ///< the active settings instance
LLAutoReplaceSettings mSettings; ///< configuration information
/// Read settings from persistent storage
void loadFromSettings();
/// Make the newSettings active and write them to user storage
void saveToUserSettings();
/// Compute the user settings file name
std::string getUserSettingsFileName();
/// Compute the (read-ony) application settings file name
std::string getAppSettingsFileName();
/// basename for the settings files
static const char* SETTINGS_FILE_NAME;
};
#endif /* LLAUTOREPLACE_H */
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