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/**
* @file llkeyconflict.h
* @brief
*
* $LicenseInfo:firstyear=2019&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2019, 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;
* version 2.1 of the License only.
*
* 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
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLKEYCONFLICT_H
#define LL_LLKEYCONFLICT_H
#include "llkeybind.h"
#include "llviewerinput.h"
class LLKeyConflict
{
public:
LLKeyConflict() : mAssignable(true), mConflictMask(U32_MAX) {} //temporary assignable, don't forget to change once all keys are recorded
LLKeyConflict(bool assignable, U32 conflict_mask)
: mAssignable(assignable), mConflictMask(conflict_mask) {}
LLKeyConflict(const LLKeyBind &bind, bool assignable, U32 conflict_mask)
: mAssignable(assignable), mConflictMask(conflict_mask), mKeyBind(bind) {}
LLKeyData getPrimaryKeyData() { return mKeyBind.getKeyData(0); }
LLKeyData getKeyData(U32 index) { return mKeyBind.getKeyData(index); }
void setPrimaryKeyData(const LLKeyData& data) { mKeyBind.replaceKeyData(data, 0); }
void setKeyData(const LLKeyData& data, U32 index) { mKeyBind.replaceKeyData(data, index); }
bool canHandle(EMouseClickType mouse, KEY key, MASK mask) const { return mKeyBind.canHandle(mouse, key, mask); }
LLKeyBind mKeyBind;
bool mAssignable; // whether user can change key or key simply acts as placeholder
U32 mConflictMask;
};
class LLKeyConflictHandler
{
public:
enum ESourceMode // partially repeats e_keyboard_mode
{
MODE_FIRST_PERSON,
MODE_THIRD_PERSON,
MODE_EDIT_AVATAR,
MODE_SITTING,
MODE_SAVED_SETTINGS, // for settings from saved settings
MODE_COUNT
};
const U32 CONFLICT_NOTHING = 0;
const U32 CONFLICT_LMOUSE = 0x1 << 1;
// at the moment this just means that key will conflict with everything that is identical
const U32 CONFLICT_ANY = U32_MAX;
// Note: missed selection and edition commands (would be really nice to go through selection via MB4/5 or wheel)
LLKeyConflictHandler();
LLKeyConflictHandler(ESourceMode mode);
~LLKeyConflictHandler();
bool canHandleControl(const std::string &control_name, EMouseClickType mouse_ind, KEY key, MASK mask) const;
bool canHandleKey(const std::string &control_name, KEY key, MASK mask) const;
bool canHandleMouse(const std::string &control_name, EMouseClickType mouse_ind, MASK mask) const;
bool canHandleMouse(const std::string &control_name, S32 mouse_ind, MASK mask) const; //Just for convenience
bool canAssignControl(const std::string &control_name) const;
static bool isReservedByMenu(const KEY &key, const MASK &mask);
static bool isReservedByMenu(const LLKeyData &data);
// @control_name - see REGISTER_KEYBOARD_ACTION in llviewerinput for avaliable options,
// usually this is just name of the function
// @data_index - single control (function) can have multiple key combinations trigering
// it, this index indicates combination function will change/add; Note that preferences
// floater can only display up to 3 options, but data_index can be bigger than that
// @mouse_ind - mouse action (middle click, MB5 etc)
// @key - keyboard key action
// @mask - shift/ctrl/alt flags
// @ignore_mask - Either to expect exact match (ctrl+K will not trigger if ctrl+shift+K
// is active) or ignore not expected masks as long as expected mask is present
// (ctrl+K will be triggered if ctrl+shift+K is active)
bool registerControl(const std::string &control_name, U32 data_index, EMouseClickType mouse_ind, KEY key, MASK mask, bool ignore_mask); //todo: return conflicts?
bool clearControl(const std::string &control_name, U32 data_index);
LLKeyData getControl(const std::string &control_name, U32 data_index);
bool isControlEmpty(const std::string &control_name);
// localized string
static std::string getStringFromKeyData(const LLKeyData& keydata);
std::string getControlString(const std::string &control_name, U32 data_index);
// Load single control, overrides existing one if names match
void loadFromControlSettings(const std::string &name);
// Drops any changes loads controls with ones from 'saved settings' or from xml
void loadFromSettings(ESourceMode load_mode);
// Saves settings to 'saved settings' or to xml
// If 'temporary' is set, function will save settings to temporary
// file and reload input bindings from temporary file.
// 'temporary' does not support gSavedSettings, those are handled
// by preferences, so 'temporary' is such case will simply not
// reset mHasUnsavedChanges
//
// 'temporary' exists to support ability of live-editing settings in
// preferences: temporary for testing changes 'live' without saving them,
// then hitting ok/cancel and save/discard values permanently.
void saveToSettings(bool apply_temporary = false);
LLKeyData getDefaultControl(const std::string &control_name, U32 data_index);
// Resets keybinding to default variant from 'saved settings' or xml
void resetToDefault(const std::string &control_name, U32 index);
void resetToDefault(const std::string &control_name);
// resets current mode to defaults
void resetToDefaults();
bool empty() const { return mControlsMap.empty(); }
void clear();
// reloads bindings from last valid user's xml or from default xml
// to keyboard's handler
static void resetKeyboardBindings();
bool hasUnsavedChanges() const { return mHasUnsavedChanges; }
void setLoadMode(ESourceMode mode) { mLoadMode = mode; }
ESourceMode getLoadMode() const { return mLoadMode; }
private:
void resetToDefaultAndResolve(const std::string &control_name, bool ignore_conflicts);
void resetToDefaultsAndResolve();
// at the moment these kind of control is not savable, but takes part in conflict resolution
void registerTemporaryControl(const std::string &control_name, EMouseClickType mouse_ind, KEY key, MASK mask, U32 conflict_mask);
// conflict mask 0 means that any conflicts will be ignored
void registerTemporaryControl(const std::string &control_name, U32 conflict_mask = 0);
typedef std::map<std::string, LLKeyConflict> control_map_t;
void loadFromSettings(const LLViewerInput::KeyMode& keymode, control_map_t *destination);
bool loadFromSettings(const ESourceMode &load_mode, const std::string &filename, control_map_t *destination);
void generatePlaceholders(ESourceMode load_mode); //E.x. non-assignable values
// returns false in case user is trying to reuse control that can't be reassigned
bool removeConflicts(const LLKeyData &data, U32 conlict_mask);
// removes flags and removes temporary file, returns 'true' if file was removed
bool clearUnsavedChanges();
// return true if there was a file to remove
static bool clearTemporaryFile();
control_map_t mControlsMap;
control_map_t mDefaultsMap;
bool mHasUnsavedChanges;
ESourceMode mLoadMode;
// To implement 'apply immediately'+revert on cancel, class applies changes to temporary file
// but this only works for settings from keybndings files (key_bindings.xml)
// saved setting rely onto external mechanism of preferences floater
bool mUsesTemporaryFile;
static S32 sTemporaryFileUseCount;
};
#endif // LL_LLKEYCONFLICT_H
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