llviewerkeyboard.cpp

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#include "llviewerprecompiledheaders.h"

#include "llappviewer.h"
#include "llviewerkeyboard.h"
#include "llmath.h"
#include "llagent.h"
#include "llchatbar.h"
#include "llviewercontrol.h"
#include "llfocusmgr.h"
#include "llmorphview.h"
#include "llmoveview.h"
#include "lltoolfocus.h"
#include "llviewerwindow.h"
#include "llvoavatar.h"

//
// Constants
//

const F32 FLY_TIME = 0.5f;
const F32 FLY_FRAMES = 4;

const F32 NUDGE_TIME = 0.25f;  // in seconds
const S32 NUDGE_FRAMES = 2;
const F32 ORBIT_NUDGE_RATE = 0.05f;  // fraction of normal speed
const F32 YAW_NUDGE_RATE = 0.05f;  // fraction of normal speed

LLViewerKeyboard gViewerKeyboard;

void agent_jump( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        F32 time = gKeyboard->getCurKeyElapsedTime();
        S32 frame_count = llround(gKeyboard->getCurKeyElapsedFrameCount());

        if( time < FLY_TIME 
                || frame_count <= FLY_FRAMES 
                || gAgent.upGrabbed()
                || !gSavedSettings.getBOOL("AutomaticFly"))
        {
                gAgent.moveUp(1);
        }
        else
        {
                gAgent.setFlying(TRUE);
                gAgent.moveUp(1);
        }
}

void agent_push_down( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.moveUp(-1);
}

static void agent_handle_doubletap_run(EKeystate s, LLAgent::EDoubleTapRunMode mode)
{
        if (KEYSTATE_UP == s)
        {
                if (gAgent.mDoubleTapRunMode == mode &&
                    gAgent.getRunning() &&
                    !gAgent.getAlwaysRun())
                {
                        // Turn off temporary running.
                        gAgent.clearRunning();
                        gAgent.sendWalkRun(gAgent.getRunning());
                }
        }
        else if (gAllowTapTapHoldRun &&
                 KEYSTATE_DOWN == s &&
                 !gAgent.getRunning())
        {
                if (gAgent.mDoubleTapRunMode == mode &&
                    gAgent.mDoubleTapRunTimer.getElapsedTimeF32() < NUDGE_TIME)
                {
                        // Same walk-key was pushed again quickly; this is a
                        // double-tap so engage temporary running.
                        gAgent.setRunning();
                        gAgent.sendWalkRun(gAgent.getRunning());
                }

                // Pressing any walk-key resets the double-tap timer
                gAgent.mDoubleTapRunTimer.reset();
                gAgent.mDoubleTapRunMode = mode;
        }
}

static void agent_push_forwardbackward( EKeystate s, S32 direction, LLAgent::EDoubleTapRunMode mode )
{
        agent_handle_doubletap_run(s, mode);
        if (KEYSTATE_UP == s) return;

        F32 time = gKeyboard->getCurKeyElapsedTime();
        S32 frame_count = llround(gKeyboard->getCurKeyElapsedFrameCount());

        if( time < NUDGE_TIME || frame_count <= NUDGE_FRAMES)
        {
                gAgent.moveAtNudge(direction);
        }
        else
        {
                gAgent.moveAt(direction);
        }
}

void agent_push_forward( EKeystate s )
{
        agent_push_forwardbackward(s, 1, LLAgent::DOUBLETAP_FORWARD);
}


void agent_push_backward( EKeystate s )
{
        agent_push_forwardbackward(s, -1, LLAgent::DOUBLETAP_BACKWARD);
}

static void agent_slide_leftright( EKeystate s, S32 direction, LLAgent::EDoubleTapRunMode mode )
{
        agent_handle_doubletap_run(s, mode);
        if( KEYSTATE_UP == s ) return;
        F32 time = gKeyboard->getCurKeyElapsedTime();
        S32 frame_count = llround(gKeyboard->getCurKeyElapsedFrameCount());

        if( time < NUDGE_TIME || frame_count <= NUDGE_FRAMES)
        {
                gAgent.moveLeftNudge(direction);
        }
        else
        {
                gAgent.moveLeft(direction);
        }
}


void agent_slide_left( EKeystate s )
{
        agent_slide_leftright(s, 1, LLAgent::DOUBLETAP_SLIDELEFT);
}


void agent_slide_right( EKeystate s )
{
        agent_slide_leftright(s, -1, LLAgent::DOUBLETAP_SLIDERIGHT);
}

void agent_turn_left( EKeystate s )
{
        if (LLToolCamera::getInstance()->mouseSteerMode())
        {
                agent_slide_left(s);
        }
        else
        {
                if (KEYSTATE_UP == s) return;
                F32 time = gKeyboard->getCurKeyElapsedTime();
                gAgent.moveYaw( LLFloaterMove::getYawRate( time ) );
        }
}


void agent_turn_right( EKeystate s )
{
        if (LLToolCamera::getInstance()->mouseSteerMode())
        {
                agent_slide_right(s);
        }
        else
        {
                if (KEYSTATE_UP == s) return;
                F32 time = gKeyboard->getCurKeyElapsedTime();
                gAgent.moveYaw( -LLFloaterMove::getYawRate( time ) );
        }
}

void agent_look_up( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.movePitch(-1);
        //gAgent.rotate(-2.f * DEG_TO_RAD, gAgent.getFrame().getLeftAxis() );
}


void agent_look_down( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.movePitch(1);
        //gAgent.rotate(2.f * DEG_TO_RAD, gAgent.getFrame().getLeftAxis() );
}

void agent_toggle_fly( EKeystate s )
{
        // Only catch the edge
        if (KEYSTATE_DOWN == s )
        {
                gAgent.toggleFlying();
        }
}

F32 get_orbit_rate()
{
        F32 time = gKeyboard->getCurKeyElapsedTime();
        if( time < NUDGE_TIME )
        {
                F32 rate = ORBIT_NUDGE_RATE + time * (1 - ORBIT_NUDGE_RATE)/ NUDGE_TIME;
                //llinfos << rate << llendl;
                return rate;
        }
        else
        {
                return 1;
        }
}

void camera_spin_around_ccw( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitLeftKey( get_orbit_rate() );
}


void camera_spin_around_cw( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitRightKey( get_orbit_rate() );
}

void camera_spin_around_ccw_sitting( EKeystate s )
{
        if( KEYSTATE_UP == s ) return;
        if (gAgent.rotateGrabbed() || gAgent.sitCameraEnabled())
        {
                //send keystrokes, but do not change camera
                agent_turn_right(s);
        }
        else
        {
                //change camera but do not send keystrokes
                gAgent.setOrbitLeftKey( get_orbit_rate() );
        }
}


void camera_spin_around_cw_sitting( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        if (gAgent.rotateGrabbed() || gAgent.sitCameraEnabled())
        {
                //send keystrokes, but do not change camera
                agent_turn_left(s);
        }
        else
        {
                //change camera but do not send keystrokes
                gAgent.setOrbitRightKey( get_orbit_rate() );
        }
}


void camera_spin_over( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitUpKey( get_orbit_rate() );
}


void camera_spin_under( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitDownKey( get_orbit_rate() );
}

void camera_spin_over_sitting( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        if (gAgent.upGrabbed() || gAgent.sitCameraEnabled())
        {
                //send keystrokes, but do not change camera
                agent_jump(s);
        }
        else
        {
                //change camera but do not send keystrokes
                gAgent.setOrbitUpKey( get_orbit_rate() );
        }
}


void camera_spin_under_sitting( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        if (gAgent.downGrabbed() || gAgent.sitCameraEnabled())
        {
                //send keystrokes, but do not change camera
                agent_push_down(s);
        }
        else
        {
                //change camera but do not send keystrokes
                gAgent.setOrbitDownKey( get_orbit_rate() );
        }
}

void camera_move_forward( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitInKey( get_orbit_rate() );
}


void camera_move_backward( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitOutKey( get_orbit_rate() );
}

void camera_move_forward_sitting( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        if (gAgent.forwardGrabbed() || gAgent.sitCameraEnabled())
        {
                agent_push_forward(s);
        }
        else
        {
                gAgent.setOrbitInKey( get_orbit_rate() );
        }
}


void camera_move_backward_sitting( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;

        if (gAgent.backwardGrabbed() || gAgent.sitCameraEnabled())
        {
                agent_push_backward(s);
        }
        else
        {
                gAgent.setOrbitOutKey( get_orbit_rate() );
        }
}

void camera_pan_up( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setPanUpKey( get_orbit_rate() );
}

void camera_pan_down( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setPanDownKey( get_orbit_rate() );
}

void camera_pan_left( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setPanLeftKey( get_orbit_rate() );
}

void camera_pan_right( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setPanRightKey( get_orbit_rate() );
}

void camera_pan_in( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setPanInKey( get_orbit_rate() );
}

void camera_pan_out( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setPanOutKey( get_orbit_rate() );
}

void camera_move_forward_fast( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitInKey(2.5f);
}

void camera_move_backward_fast( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gAgent.unlockView();
        gAgent.setOrbitOutKey(2.5f);
}


void edit_avatar_spin_ccw( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gMorphView->setCameraDrivenByKeys( TRUE );
        gAgent.setOrbitLeftKey( get_orbit_rate() );
        //gMorphView->orbitLeft( get_orbit_rate() );
}


void edit_avatar_spin_cw( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gMorphView->setCameraDrivenByKeys( TRUE );
        gAgent.setOrbitRightKey( get_orbit_rate() );
        //gMorphView->orbitRight( get_orbit_rate() );
}

void edit_avatar_spin_over( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gMorphView->setCameraDrivenByKeys( TRUE );
        gAgent.setOrbitUpKey( get_orbit_rate() );
        //gMorphView->orbitUp( get_orbit_rate() );
}


void edit_avatar_spin_under( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gMorphView->setCameraDrivenByKeys( TRUE );
        gAgent.setOrbitDownKey( get_orbit_rate() );
        //gMorphView->orbitDown( get_orbit_rate() );
}

void edit_avatar_move_forward( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gMorphView->setCameraDrivenByKeys( TRUE );
        gAgent.setOrbitInKey( get_orbit_rate() );
        //gMorphView->orbitIn();
}


void edit_avatar_move_backward( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        gMorphView->setCameraDrivenByKeys( TRUE );
        gAgent.setOrbitOutKey( get_orbit_rate() );
        //gMorphView->orbitOut();
}

void stop_moving( EKeystate s )
{
        if( KEYSTATE_UP == s  ) return;
        // stop agent
        gAgent.setControlFlags(AGENT_CONTROL_STOP);

        // cancel autopilot
        gAgent.stopAutoPilot();
}

void start_chat( EKeystate s )
{
        // start chat
        gChatBar->startChat(NULL);
}

void start_gesture( EKeystate s )
{
        if (KEYSTATE_UP == s &&
                !(gFocusMgr.getKeyboardFocus() && gFocusMgr.getKeyboardFocus()->acceptsTextInput()))
        {
                if (gChatBar->getCurrentChat().empty())
                {
                        // No existing chat in chat editor, insert '/'
                        gChatBar->startChat("/");
                }
                else
                {
                        // Don't overwrite existing text in chat editor
                        gChatBar->startChat(NULL);
                }
        }
}

void bind_keyboard_functions()
{
        gViewerKeyboard.bindNamedFunction("jump", agent_jump);
        gViewerKeyboard.bindNamedFunction("push_down", agent_push_down);
        gViewerKeyboard.bindNamedFunction("push_forward", agent_push_forward);
        gViewerKeyboard.bindNamedFunction("push_backward", agent_push_backward);
        gViewerKeyboard.bindNamedFunction("look_up", agent_look_up);
        gViewerKeyboard.bindNamedFunction("look_down", agent_look_down);
        gViewerKeyboard.bindNamedFunction("toggle_fly", agent_toggle_fly);
        gViewerKeyboard.bindNamedFunction("turn_left", agent_turn_left);
        gViewerKeyboard.bindNamedFunction("turn_right", agent_turn_right);
        gViewerKeyboard.bindNamedFunction("slide_left", agent_slide_left);
        gViewerKeyboard.bindNamedFunction("slide_right", agent_slide_right);
        gViewerKeyboard.bindNamedFunction("spin_around_ccw", camera_spin_around_ccw);
        gViewerKeyboard.bindNamedFunction("spin_around_cw", camera_spin_around_cw);
        gViewerKeyboard.bindNamedFunction("spin_around_ccw_sitting", camera_spin_around_ccw_sitting);
        gViewerKeyboard.bindNamedFunction("spin_around_cw_sitting", camera_spin_around_cw_sitting);
        gViewerKeyboard.bindNamedFunction("spin_over", camera_spin_over);
        gViewerKeyboard.bindNamedFunction("spin_under", camera_spin_under);
        gViewerKeyboard.bindNamedFunction("spin_over_sitting", camera_spin_over_sitting);
        gViewerKeyboard.bindNamedFunction("spin_under_sitting", camera_spin_under_sitting);
        gViewerKeyboard.bindNamedFunction("move_forward", camera_move_forward);
        gViewerKeyboard.bindNamedFunction("move_backward", camera_move_backward);
        gViewerKeyboard.bindNamedFunction("move_forward_sitting", camera_move_forward_sitting);
        gViewerKeyboard.bindNamedFunction("move_backward_sitting", camera_move_backward_sitting);
        gViewerKeyboard.bindNamedFunction("pan_up", camera_pan_up);
        gViewerKeyboard.bindNamedFunction("pan_down", camera_pan_down);
        gViewerKeyboard.bindNamedFunction("pan_left", camera_pan_left);
        gViewerKeyboard.bindNamedFunction("pan_right", camera_pan_right);
        gViewerKeyboard.bindNamedFunction("pan_in", camera_pan_in);
        gViewerKeyboard.bindNamedFunction("pan_out", camera_pan_out);
        gViewerKeyboard.bindNamedFunction("move_forward_fast", camera_move_forward_fast);
        gViewerKeyboard.bindNamedFunction("move_backward_fast", camera_move_backward_fast);
        gViewerKeyboard.bindNamedFunction("edit_avatar_spin_ccw", edit_avatar_spin_ccw);
        gViewerKeyboard.bindNamedFunction("edit_avatar_spin_cw", edit_avatar_spin_cw);
        gViewerKeyboard.bindNamedFunction("edit_avatar_spin_over", edit_avatar_spin_over);
        gViewerKeyboard.bindNamedFunction("edit_avatar_spin_under", edit_avatar_spin_under);
        gViewerKeyboard.bindNamedFunction("edit_avatar_move_forward", edit_avatar_move_forward);
        gViewerKeyboard.bindNamedFunction("edit_avatar_move_backward", edit_avatar_move_backward);
        gViewerKeyboard.bindNamedFunction("stop_moving", stop_moving);
        gViewerKeyboard.bindNamedFunction("start_chat", start_chat);
        gViewerKeyboard.bindNamedFunction("start_gesture", start_gesture);
}

LLViewerKeyboard::LLViewerKeyboard()
{
        for (S32 i = 0; i < MODE_COUNT; i++)
        {
                mBindingCount[i] = 0;
        }

        for (S32 i = 0; i < KEY_COUNT; i++)
        {
                mKeyHandledByUI[i] = FALSE;
        }
        // we want the UI to never see these keys so that they can always control the avatar/camera
        for(KEY k = KEY_PAD_UP; k <= KEY_PAD_DIVIDE; k++) 
        {
                mKeysSkippedByUI.insert(k);     
        }
}


void LLViewerKeyboard::bindNamedFunction(const char *name, LLKeyFunc func)
{
        S32 i = mNamedFunctionCount;
        mNamedFunctions[i].mName = name;
        mNamedFunctions[i].mFunction = func;
        mNamedFunctionCount++;
}


BOOL LLViewerKeyboard::modeFromString(const char *string, S32 *mode)
{
        if (!strcmp(string, "FIRST_PERSON"))
        {
                *mode = MODE_FIRST_PERSON;
                return TRUE;
        }
        else if (!strcmp(string, "THIRD_PERSON"))
        {
                *mode = MODE_THIRD_PERSON;
                return TRUE;
        }
        else if (!strcmp(string, "EDIT"))
        {
                *mode = MODE_EDIT;
                return TRUE;
        }
        else if (!strcmp(string, "EDIT_AVATAR"))
        {
                *mode = MODE_EDIT_AVATAR;
                return TRUE;
        }
        else if (!strcmp(string, "SITTING"))
        {
                *mode = MODE_SITTING;
                return TRUE;
        }
        else
        {
                *mode = MODE_THIRD_PERSON;
                return FALSE;
        }
}

BOOL LLViewerKeyboard::handleKey(KEY translated_key,  MASK translated_mask, BOOL repeated)
{
        // check for re-map
        EKeyboardMode mode = gViewerKeyboard.getMode();
        U32 keyidx = (translated_mask<<16) | translated_key;
        key_remap_t::iterator iter = mRemapKeys[mode].find(keyidx);
        if (iter != mRemapKeys[mode].end())
        {
                translated_key = (iter->second) & 0xff;
                translated_mask = (iter->second)>>16;
        }

        // No repeats of F-keys
        BOOL repeatable_key = (translated_key < KEY_F1 || translated_key > KEY_F12);
        if (!repeatable_key && repeated)
        {
                return FALSE;
        }

        lldebugst(LLERR_USER_INPUT) << "keydown -" << translated_key << "-" << llendl;
        // skip skipped keys
        if(mKeysSkippedByUI.find(translated_key) != mKeysSkippedByUI.end()) 
        {
                mKeyHandledByUI[translated_key] = FALSE;
        }
        else
        {
                // it is sufficient to set this value once per call to handlekey
                // without clearing it, as it is only used in the subsequent call to scanKey
                mKeyHandledByUI[translated_key] = gViewerWindow->handleKey(translated_key, translated_mask);
        }
        return mKeyHandledByUI[translated_key];
}



BOOL LLViewerKeyboard::bindKey(const S32 mode, const KEY key, const MASK mask, const char *function_name)
{
        S32 i,index;
        void (*function)(EKeystate keystate) = NULL;
        const char *name = NULL;

        // Allow remapping of F2-F12
        if (function_name[0] == 'F')
        {
                int c1 = function_name[1] - '0';
                int c2 = function_name[2] ? function_name[2] - '0' : -1;
                if (c1 >= 0 && c1 <= 9 && c2 >= -1 && c2 <= 9)
                {
                        int idx = c1;
                        if (c2 >= 0)
                                idx = idx*10 + c2;
                        if (idx >=2 && idx <= 12)
                        {
                                U32 keyidx = ((mask<<16)|key);
                                (mRemapKeys[mode])[keyidx] = ((0<<16)|KEY_F1+(idx-1));
                                return TRUE;
                        }
                }
        }

        // Not remapped, look for a function
        for (i = 0; i < mNamedFunctionCount; i++)
        {
                if (!strcmp(function_name, mNamedFunctions[i].mName))
                {
                        function = mNamedFunctions[i].mFunction;
                        name = mNamedFunctions[i].mName;
                }
        }

        if (!function)
        {
                llerrs << "Can't bind key to function " << function_name << ", no function with this name found" << llendl;
                return FALSE;
        }

        // check for duplicate first and overwrite
        for (index = 0; index < mBindingCount[mode]; index++)
        {
                if (key == mBindings[mode][index].mKey && mask == mBindings[mode][index].mMask)
                        break;
        }

        if (index >= MAX_KEY_BINDINGS)
        {
                llerrs << "LLKeyboard::bindKey() - too many keys for mode " << mode << llendl;
                return FALSE;
        }

        if (mode >= MODE_COUNT)
        {
                llerror("LLKeyboard::bindKey() - unknown mode passed", mode);
                return FALSE;
        }

        mBindings[mode][index].mKey = key;
        mBindings[mode][index].mMask = mask;
//      mBindings[mode][index].mName = name;
        mBindings[mode][index].mFunction = function;

        if (index == mBindingCount[mode])
                mBindingCount[mode]++;

        // printf("Bound key %c to %s\n", key, name);

        return TRUE;
}


S32 LLViewerKeyboard::loadBindings(const char *filename)
{
        LLFILE *fp;
        const S32 BUFFER_SIZE = 2048;
        char buffer[BUFFER_SIZE];       /* Flawfinder: ignore */
        // *NOTE: This buffer size is hard coded into scanf() below.
        char mode_string[MAX_STRING];   /* Flawfinder: ignore */
        char key_string[MAX_STRING];    /* Flawfinder: ignore */
        char mask_string[MAX_STRING];   /* Flawfinder: ignore */
        char function_string[MAX_STRING];       /* Flawfinder: ignore */
        S32 mode = MODE_THIRD_PERSON;
        KEY key = 0;
        MASK mask = 0;
        S32 tokens_read;
        S32 binding_count = 0;
        S32 line_count = 0;

        if(!filename)
        {
                llerrs << " No filename specified" << llendl;
                return 0;
        }

        fp = LLFile::fopen(filename, "r");

        if (!fp)
        {
                return 0;
        }


        while (!feof(fp))
        {
                line_count++;
                if (!fgets(buffer, BUFFER_SIZE, fp))
                        break;

                // skip over comments, blank lines
                if (buffer[0] == '#' || buffer[0] == '\n') continue;

                // grab the binding strings
                tokens_read = sscanf(   /* Flawfinder: ignore */
                        buffer,
                        "%254s %254s %254s %254s",
                        mode_string,
                        key_string,
                        mask_string,
                        function_string);

                if (tokens_read == EOF)
                {
                        llinfos << "Unexpected end-of-file at line " << line_count << " of key binding file " << filename << llendl;
                        fclose(fp);
                        return 0;
                }
                else if (tokens_read < 4)
                {
                        llinfos << "Can't read line " << line_count << " of key binding file " << filename << llendl;
                        continue;
                }

                // convert mode
                if (!modeFromString(mode_string, &mode))
                {
                        llinfos << "Unknown mode on line " << line_count << " of key binding file " << filename << llendl;
                        llinfos << "Mode must be one of FIRST_PERSON, THIRD_PERSON, EDIT, EDIT_AVATAR" << llendl;
                        continue;
                }

                // convert key
                if (!LLKeyboard::keyFromString(key_string, &key))
                {
                        llinfos << "Can't interpret key on line " << line_count << " of key binding file " << filename << llendl;
                        continue;
                }

                // convert mask
                if (!LLKeyboard::maskFromString(mask_string, &mask))
                {
                        llinfos << "Can't interpret mask on line " << line_count << " of key binding file " << filename << llendl;
                        continue;
                }

                // bind key
                if (bindKey(mode, key, mask, function_string))
                {
                        binding_count++;
                }
        }

        fclose(fp);

        return binding_count;
}


EKeyboardMode LLViewerKeyboard::getMode()
{
        if ( gAgent.cameraMouselook() )
        {
                return MODE_FIRST_PERSON;
        }
        else if ( gMorphView && gMorphView->getVisible())
        {
                return MODE_EDIT_AVATAR;
        }
        else if (gAgent.getAvatarObject() && gAgent.getAvatarObject()->mIsSitting)
        {
                return MODE_SITTING;
        }
        else
        {
                return MODE_THIRD_PERSON;
        }
}


// Called from scanKeyboard.
void LLViewerKeyboard::scanKey(KEY key, BOOL key_down, BOOL key_up, BOOL key_level)
{
        S32 mode = getMode();
        // Consider keyboard scanning as NOT mouse event. JC
        MASK mask = gKeyboard->currentMask(FALSE);

        LLKeyBinding* binding = mBindings[mode];
        S32 binding_count = mBindingCount[mode];


        if (mKeyHandledByUI[key])
        {
                return;
        }

        // don't process key down on repeated keys
        BOOL repeat = gKeyboard->getKeyRepeated(key);

        for (S32 i = 0; i < binding_count; i++)
        {
                //for (S32 key = 0; key < KEY_COUNT; key++)
                if (binding[i].mKey == key)
                {
                        //if (binding[i].mKey == key && binding[i].mMask == mask)
                        if (binding[i].mMask == mask)
                        {
                                if (key_down && !repeat)
                                {
                                        // ...key went down this frame, call function
                                        (*binding[i].mFunction)( KEYSTATE_DOWN );
                                }
                                else if (key_up)
                                {
                                        // ...key went down this frame, call function
                                        (*binding[i].mFunction)( KEYSTATE_UP );
                                }
                                else if (key_level)
                                {
                                        // ...key held down from previous frame
                                        // Not windows, just call the function.
                                        (*binding[i].mFunction)( KEYSTATE_LEVEL );
                                }//if
                        }//if
                }//for
        }//for
}

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