/* $XTermId: button.c,v 1.524 2017/05/30 08:58:29 tom Exp $ */ /* * Copyright 1999-2016,2017 by Thomas E. Dickey * * All Rights Reserved * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name(s) of the above copyright * holders shall not be used in advertising or otherwise to promote the * sale, use or other dealings in this Software without prior written * authorization. * * * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. * * All Rights Reserved * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation, and that the name of Digital Equipment * Corporation not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior permission. * * * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. */ /* button.c Handles button events in the terminal emulator. does cut/paste operations, change modes via menu, passes button events through to some applications. J. Gettys. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if OPT_SELECT_REGEX #ifdef HAVE_PCREPOSIX_H #include #else /* POSIX regex.h */ #include #include #endif #endif #if OPT_WIDE_CHARS #include #include #else #define CharacterClass(value) \ charClass[(value) & ((sizeof(charClass)/sizeof(charClass[0]))-1)] #endif /* * We'll generally map rows to indices when doing selection. * Simplify that with a macro. * * Note that ROW2INX() is safe to use with auto increment/decrement for * the row expression since that is evaluated once. */ #define GET_LINEDATA(screen, row) \ getLineData(screen, ROW2INX(screen, row)) /* * We reserve shift modifier for cut/paste operations. In principle we * can pass through control and meta modifiers, but in practice, the * popup menu uses control, and the window manager is likely to use meta, * so those events are not delivered to SendMousePosition. */ #define OurModifiers (ShiftMask | ControlMask | Mod1Mask) #define AllModifiers (ShiftMask | LockMask | ControlMask | Mod1Mask | \ Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask) #define BtnModifiers(event) (event->state & OurModifiers) #define KeyModifiers(event) (event->xbutton.state & OurModifiers) #define IsBtnEvent(event) ((event)->type == ButtonPress || (event)->type == ButtonRelease) #define IsKeyEvent(event) ((event)->type == KeyPress || (event)->type == KeyRelease) #define KeyState(x) (((int) ((x) & (ShiftMask|ControlMask))) \ + (((x) & Mod1Mask) ? 2 : 0)) /* adds together the bits: shift key -> 1 meta key -> 2 control key -> 4 */ #define Coordinate(s,c) ((c)->row * MaxCols(s) + (c)->col) static const CELL zeroCELL = {0, 0}; #if OPT_DEC_LOCATOR static Bool SendLocatorPosition(XtermWidget xw, XButtonEvent *event); static void CheckLocatorPosition(XtermWidget xw, XButtonEvent *event); #endif /* OPT_DEC_LOCATOR */ /* Multi-click handling */ #if OPT_READLINE static Time lastButtonDownTime = 0; static int ExtendingSelection = 0; static Time lastButton3UpTime = 0; static Time lastButton3DoubleDownTime = 0; static CELL lastButton3; /* At the release time */ #endif /* OPT_READLINE */ static Char *SaveText(TScreen *screen, int row, int scol, int ecol, Char *lp, int *eol); static int Length(TScreen *screen, int row, int scol, int ecol); static void ComputeSelect(XtermWidget xw, CELL *startc, CELL *endc, Bool extend); static void EditorButton(XtermWidget xw, XButtonEvent *event); static void EndExtend(XtermWidget w, XEvent *event, String *params, Cardinal num_params, Bool use_cursor_loc); static void ExtendExtend(XtermWidget xw, const CELL *cell); static void PointToCELL(TScreen *screen, int y, int x, CELL *cell); static void ReHiliteText(XtermWidget xw, CELL *first, CELL *last); static void SaltTextAway(XtermWidget xw, CELL *cellc, CELL *cell); static void SelectSet(XtermWidget xw, XEvent *event, String *params, Cardinal num_params); static void SelectionReceived PROTO_XT_SEL_CB_ARGS; static void StartSelect(XtermWidget xw, const CELL *cell); static void TrackDown(XtermWidget xw, XButtonEvent *event); static void TrackText(XtermWidget xw, const CELL *first, const CELL *last); static void _OwnSelection(XtermWidget xw, String *selections, Cardinal count); static void do_select_end(XtermWidget xw, XEvent *event, String *params, Cardinal *num_params, Bool use_cursor_loc); #define MOUSE_LIMIT (255 - 32) /* Send SET_EXT_SIZE_MOUSE to enable offsets up to EXT_MOUSE_LIMIT */ #define EXT_MOUSE_LIMIT (2047 - 32) #define EXT_MOUSE_START (127 - 32) static int MouseLimit(TScreen *screen) { int mouse_limit; switch (screen->extend_coords) { default: mouse_limit = MOUSE_LIMIT; break; case SET_EXT_MODE_MOUSE: mouse_limit = EXT_MOUSE_LIMIT; break; case SET_SGR_EXT_MODE_MOUSE: case SET_URXVT_EXT_MODE_MOUSE: mouse_limit = -1; break; } return mouse_limit; } static unsigned EmitMousePosition(TScreen *screen, Char line[], unsigned count, int value) { int mouse_limit = MouseLimit(screen); /* * Add pointer position to key sequence * * In extended mode we encode large positions as two-byte UTF-8. * * NOTE: historically, it was possible to emit 256, which became * zero by truncation to 8 bits. While this was arguably a bug, * it's also somewhat useful as a past-end marker. We preserve * this behavior for both normal and extended mouse modes. */ switch (screen->extend_coords) { default: if (value == mouse_limit) { line[count++] = CharOf(0); } else { line[count++] = CharOf(' ' + value + 1); } break; case SET_EXT_MODE_MOUSE: if (value == mouse_limit) { line[count++] = CharOf(0); } else if (value < EXT_MOUSE_START) { line[count++] = CharOf(' ' + value + 1); } else { value += ' ' + 1; line[count++] = CharOf(0xC0 + (value >> 6)); line[count++] = CharOf(0x80 + (value & 0x3F)); } break; case SET_SGR_EXT_MODE_MOUSE: /* FALLTHRU */ case SET_URXVT_EXT_MODE_MOUSE: count += (unsigned) sprintf((char *) line + count, "%d", value + 1); break; } return count; } static unsigned EmitMousePositionSeparator(TScreen *screen, Char line[], unsigned count) { switch (screen->extend_coords) { case SET_SGR_EXT_MODE_MOUSE: case SET_URXVT_EXT_MODE_MOUSE: line[count++] = ';'; break; } return count; } Bool SendMousePosition(XtermWidget xw, XEvent *event) { XButtonEvent *my_event = (XButtonEvent *) event; Bool result = False; switch (okSendMousePos(xw)) { case MOUSE_OFF: /* If send_mouse_pos mode isn't on, we shouldn't be here */ break; case BTN_EVENT_MOUSE: case ANY_EVENT_MOUSE: if (KeyModifiers(event) == 0 || KeyModifiers(event) == ControlMask) { /* xterm extension for motion reporting. June 1998 */ /* EditorButton() will distinguish between the modes */ switch (event->type) { case MotionNotify: my_event->button = 0; /* FALLTHRU */ case ButtonPress: /* FALLTHRU */ case ButtonRelease: EditorButton(xw, my_event); result = True; break; } } break; case X10_MOUSE: /* X10 compatibility sequences */ if (IsBtnEvent(event)) { if (BtnModifiers(my_event) == 0) { if (my_event->type == ButtonPress) EditorButton(xw, my_event); result = True; } } break; case VT200_HIGHLIGHT_MOUSE: /* DEC vt200 hilite tracking */ if (IsBtnEvent(event)) { if (my_event->type == ButtonPress && BtnModifiers(my_event) == 0 && my_event->button == Button1) { TrackDown(xw, my_event); result = True; } else if (BtnModifiers(my_event) == 0 || BtnModifiers(my_event) == ControlMask) { EditorButton(xw, my_event); result = True; } } break; case VT200_MOUSE: /* DEC vt200 compatible */ if (IsBtnEvent(event)) { if (BtnModifiers(my_event) == 0 || BtnModifiers(my_event) == ControlMask) { EditorButton(xw, my_event); result = True; } } break; case DEC_LOCATOR: if (IsBtnEvent(event)) { #if OPT_DEC_LOCATOR result = SendLocatorPosition(xw, my_event); #endif /* OPT_DEC_LOCATOR */ } break; } return result; } #if OPT_DEC_LOCATOR #define LocatorCoords( row, col, x, y, oor ) \ if( screen->locator_pixels ) { \ (oor)=False; (row) = (y)+1; (col) = (x)+1; \ /* Limit to screen dimensions */ \ if ((row) < 1) (row) = 1,(oor)=True; \ else if ((row) > screen->border*2+Height(screen)) \ (row) = screen->border*2+Height(screen),(oor)=True; \ if ((col) < 1) (col) = 1,(oor)=True; \ else if ((col) > OriginX(screen)*2+Width(screen)) \ (col) = OriginX(screen)*2+Width(screen),(oor)=True; \ } else { \ (oor)=False; \ /* Compute character position of mouse pointer */ \ (row) = ((y) - screen->border) / FontHeight(screen); \ (col) = ((x) - OriginX(screen)) / FontWidth(screen); \ /* Limit to screen dimensions */ \ if ((row) < 0) (row) = 0,(oor)=True; \ else if ((row) > screen->max_row) \ (row) = screen->max_row,(oor)=True; \ if ((col) < 0) (col) = 0,(oor)=True; \ else if ((col) > screen->max_col) \ (col) = screen->max_col,(oor)=True; \ (row)++; (col)++; \ } static Bool SendLocatorPosition(XtermWidget xw, XButtonEvent *event) { ANSI reply; TScreen *screen = TScreenOf(xw); int row, col; Bool oor; int button; unsigned state; /* Make sure the event is an appropriate type */ if ((!IsBtnEvent(event) && !screen->loc_filter) || (BtnModifiers(event) != 0 && BtnModifiers(event) != ControlMask)) return (False); if ((event->type == ButtonPress && !(screen->locator_events & LOC_BTNS_DN)) || (event->type == ButtonRelease && !(screen->locator_events & LOC_BTNS_UP))) return (True); if (event->type == MotionNotify) { CheckLocatorPosition(xw, event); return (True); } /* get button # */ button = (int) event->button - 1; LocatorCoords(row, col, event->x, event->y, oor); /* * DECterm mouse: * * ESCAPE '[' event ; mask ; row ; column '&' 'w' */ memset(&reply, 0, sizeof(reply)); reply.a_type = ANSI_CSI; if (oor) { reply.a_nparam = 1; reply.a_param[0] = 0; /* Event - 0 = locator unavailable */ reply.a_inters = '&'; reply.a_final = 'w'; unparseseq(xw, &reply); if (screen->locator_reset) { MotionOff(screen, xw); screen->send_mouse_pos = MOUSE_OFF; } return (True); } /* * event: * 1 no buttons * 2 left button down * 3 left button up * 4 middle button down * 5 middle button up * 6 right button down * 7 right button up * 8 M4 down * 9 M4 up */ reply.a_nparam = 4; switch (event->type) { case ButtonPress: reply.a_param[0] = (ParmType) (2 + (button << 1)); break; case ButtonRelease: reply.a_param[0] = (ParmType) (3 + (button << 1)); break; default: return (True); } /* * mask: * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 * M4 down left down middle down right down * * Notice that Button1 (left) and Button3 (right) are swapped in the mask. * Also, mask should be the state after the button press/release, * X provides the state not including the button press/release. */ state = (event->state & (Button1Mask | Button2Mask | Button3Mask | Button4Mask)) >> 8; /* update mask to "after" state */ state ^= ((unsigned) (1 << button)); /* swap Button1 & Button3 */ state = ((state & (unsigned) ~(4 | 1)) | ((state & 1) ? 4 : 0) | ((state & 4) ? 1 : 0)); reply.a_param[1] = (ParmType) state; reply.a_param[2] = (ParmType) row; reply.a_param[3] = (ParmType) col; reply.a_inters = '&'; reply.a_final = 'w'; unparseseq(xw, &reply); if (screen->locator_reset) { MotionOff(screen, xw); screen->send_mouse_pos = MOUSE_OFF; } /* * DECterm turns the Locator off if a button is pressed while a filter * rectangle is active. This might be a bug, but I don't know, so I'll * emulate it anyway. */ if (screen->loc_filter) { screen->send_mouse_pos = MOUSE_OFF; screen->loc_filter = False; screen->locator_events = 0; MotionOff(screen, xw); } return (True); } /* * mask: * bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 * M4 down left down middle down right down * * Button1 (left) and Button3 (right) are swapped in the mask relative to X. */ #define ButtonState(state, mask) \ { int stemp = (int) (((mask) & (Button1Mask | Button2Mask | Button3Mask | Button4Mask)) >> 8); \ /* swap Button1 & Button3 */ \ (state) = (stemp & ~(4|1)) | ((stemp & 1) ? 4 : 0) | ((stemp & 4) ? 1 : 0); \ } void GetLocatorPosition(XtermWidget xw) { ANSI reply; TScreen *screen = TScreenOf(xw); Window root, child; int rx, ry, x, y; unsigned int mask; int row = 0, col = 0; Bool oor = False; Bool ret = False; int state; /* * DECterm turns the Locator off if the position is requested while a * filter rectangle is active. This might be a bug, but I don't know, so * I'll emulate it anyways. */ if (screen->loc_filter) { screen->send_mouse_pos = MOUSE_OFF; screen->loc_filter = False; screen->locator_events = 0; MotionOff(screen, xw); } memset(&reply, 0, sizeof(reply)); reply.a_type = ANSI_CSI; if (okSendMousePos(xw) == DEC_LOCATOR) { ret = XQueryPointer(screen->display, VWindow(screen), &root, &child, &rx, &ry, &x, &y, &mask); if (ret) { LocatorCoords(row, col, x, y, oor); } } if (ret == False || oor) { reply.a_nparam = 1; reply.a_param[0] = 0; /* Event - 0 = locator unavailable */ reply.a_inters = '&'; reply.a_final = 'w'; unparseseq(xw, &reply); if (screen->locator_reset) { MotionOff(screen, xw); screen->send_mouse_pos = MOUSE_OFF; } return; } ButtonState(state, mask); reply.a_nparam = 4; reply.a_param[0] = 1; /* Event - 1 = response to locator request */ reply.a_param[1] = (ParmType) state; reply.a_param[2] = (ParmType) row; reply.a_param[3] = (ParmType) col; reply.a_inters = '&'; reply.a_final = 'w'; unparseseq(xw, &reply); if (screen->locator_reset) { MotionOff(screen, xw); screen->send_mouse_pos = MOUSE_OFF; } } void InitLocatorFilter(XtermWidget xw) { ANSI reply; TScreen *screen = TScreenOf(xw); Window root, child; int rx, ry, x, y; unsigned int mask; int row = 0, col = 0; Bool oor = 0; Bool ret; ret = XQueryPointer(screen->display, VWindow(screen), &root, &child, &rx, &ry, &x, &y, &mask); if (ret) { LocatorCoords(row, col, x, y, oor); } if (ret == False || oor) { /* Locator is unavailable */ if (screen->loc_filter_top != LOC_FILTER_POS || screen->loc_filter_left != LOC_FILTER_POS || screen->loc_filter_bottom != LOC_FILTER_POS || screen->loc_filter_right != LOC_FILTER_POS) { /* * If any explicit coordinates were received, * report immediately with no coordinates. */ memset(&reply, 0, sizeof(reply)); reply.a_type = ANSI_CSI; reply.a_nparam = 1; reply.a_param[0] = 0; /* Event - 0 = locator unavailable */ reply.a_inters = '&'; reply.a_final = 'w'; unparseseq(xw, &reply); if (screen->locator_reset) { MotionOff(screen, xw); screen->send_mouse_pos = MOUSE_OFF; } } else { /* * No explicit coordinates were received, and the pointer is * unavailable. Report when the pointer re-enters the window. */ screen->loc_filter = True; MotionOn(screen, xw); } return; } /* * Adjust rectangle coordinates: * 1. Replace "LOC_FILTER_POS" with current coordinates * 2. Limit coordinates to screen size * 3. make sure top and left are less than bottom and right, resp. */ if (screen->locator_pixels) { rx = OriginX(screen) * 2 + Width(screen); ry = screen->border * 2 + Height(screen); } else { rx = screen->max_col; ry = screen->max_row; } #define Adjust( coord, def, max ) \ if( (coord) == LOC_FILTER_POS ) (coord) = (def); \ else if ((coord) < 1) (coord) = 1; \ else if ((coord) > (max)) (coord) = (max) Adjust(screen->loc_filter_top, row, ry); Adjust(screen->loc_filter_left, col, rx); Adjust(screen->loc_filter_bottom, row, ry); Adjust(screen->loc_filter_right, col, rx); if (screen->loc_filter_top > screen->loc_filter_bottom) { ry = screen->loc_filter_top; screen->loc_filter_top = screen->loc_filter_bottom; screen->loc_filter_bottom = ry; } if (screen->loc_filter_left > screen->loc_filter_right) { rx = screen->loc_filter_left; screen->loc_filter_left = screen->loc_filter_right; screen->loc_filter_right = rx; } if ((col < screen->loc_filter_left) || (col > screen->loc_filter_right) || (row < screen->loc_filter_top) || (row > screen->loc_filter_bottom)) { int state; /* Pointer is already outside the rectangle - report immediately */ ButtonState(state, mask); memset(&reply, 0, sizeof(reply)); reply.a_type = ANSI_CSI; reply.a_nparam = 4; reply.a_param[0] = 10; /* Event - 10 = locator outside filter */ reply.a_param[1] = (ParmType) state; reply.a_param[2] = (ParmType) row; reply.a_param[3] = (ParmType) col; reply.a_inters = '&'; reply.a_final = 'w'; unparseseq(xw, &reply); if (screen->locator_reset) { MotionOff(screen, xw); screen->send_mouse_pos = MOUSE_OFF; } return; } /* * Rectangle is set up. Allow pointer tracking * to detect if the mouse leaves the rectangle. */ screen->loc_filter = True; MotionOn(screen, xw); } static void CheckLocatorPosition(XtermWidget xw, XButtonEvent *event) { ANSI reply; TScreen *screen = TScreenOf(xw); int row, col; Bool oor; LocatorCoords(row, col, event->x, event->y, oor); /* * Send report if the pointer left the filter rectangle, if * the pointer left the window, or if the filter rectangle * had no coordinates and the pointer re-entered the window. */ if (oor || (screen->loc_filter_top == LOC_FILTER_POS) || (col < screen->loc_filter_left) || (col > screen->loc_filter_right) || (row < screen->loc_filter_top) || (row > screen->loc_filter_bottom)) { /* Filter triggered - disable it */ screen->loc_filter = False; MotionOff(screen, xw); memset(&reply, 0, sizeof(reply)); reply.a_type = ANSI_CSI; if (oor) { reply.a_nparam = 1; reply.a_param[0] = 0; /* Event - 0 = locator unavailable */ } else { int state; ButtonState(state, event->state); reply.a_nparam = 4; reply.a_param[0] = 10; /* Event - 10 = locator outside filter */ reply.a_param[1] = (ParmType) state; reply.a_param[2] = (ParmType) row; reply.a_param[3] = (ParmType) col; } reply.a_inters = '&'; reply.a_final = 'w'; unparseseq(xw, &reply); if (screen->locator_reset) { MotionOff(screen, xw); screen->send_mouse_pos = MOUSE_OFF; } } } #endif /* OPT_DEC_LOCATOR */ #if OPT_READLINE static int isClick1_clean(XtermWidget xw, XButtonEvent *event) { TScreen *screen = TScreenOf(xw); int delta; if (!IsBtnEvent(event) /* Disable on Shift-Click-1, including the application-mouse modes */ || (BtnModifiers(event) & ShiftMask) || (okSendMousePos(xw) != MOUSE_OFF) /* Kinda duplicate... */ ||ExtendingSelection) /* Was moved */ return 0; if (event->type != ButtonRelease) return 0; if (lastButtonDownTime == (Time) 0) { /* first time or once in a blue moon */ delta = screen->multiClickTime + 1; } else if (event->time > lastButtonDownTime) { /* most of the time */ delta = (int) (event->time - lastButtonDownTime); } else { /* time has rolled over since lastButtonUpTime */ delta = (int) ((((Time) ~ 0) - lastButtonDownTime) + event->time); } return delta <= screen->multiClickTime; } static int isDoubleClick3(TScreen *screen, XButtonEvent *event) { int delta; if (event->type != ButtonRelease || (BtnModifiers(event) & ShiftMask) || event->button != Button3) { lastButton3UpTime = 0; /* Disable the cached info */ return 0; } /* Process Btn3Release. */ if (lastButton3DoubleDownTime == (Time) 0) { /* No previous click or once in a blue moon */ delta = screen->multiClickTime + 1; } else if (event->time > lastButton3DoubleDownTime) { /* most of the time */ delta = (int) (event->time - lastButton3DoubleDownTime); } else { /* time has rolled over since lastButton3DoubleDownTime */ delta = (int) ((((Time) ~ 0) - lastButton3DoubleDownTime) + event->time); } if (delta <= screen->multiClickTime) { /* Double click */ CELL cell; /* Cannot check ExtendingSelection, since mouse-3 always sets it */ PointToCELL(screen, event->y, event->x, &cell); if (isSameCELL(&cell, &lastButton3)) { lastButton3DoubleDownTime = 0; /* Disable the third click */ return 1; } } /* Not a double click, memorize for future check. */ lastButton3UpTime = event->time; PointToCELL(screen, event->y, event->x, &lastButton3); return 0; } static int CheckSecondPress3(TScreen *screen, XEvent *event) { int delta; if (event->type != ButtonPress || (KeyModifiers(event) & ShiftMask) || event->xbutton.button != Button3) { lastButton3DoubleDownTime = 0; /* Disable the cached info */ return 0; } /* Process Btn3Press. */ if (lastButton3UpTime == (Time) 0) { /* No previous click or once in a blue moon */ delta = screen->multiClickTime + 1; } else if (event->xbutton.time > lastButton3UpTime) { /* most of the time */ delta = (int) (event->xbutton.time - lastButton3UpTime); } else { /* time has rolled over since lastButton3UpTime */ delta = (int) ((((Time) ~ 0) - lastButton3UpTime) + event->xbutton.time); } if (delta <= screen->multiClickTime) { CELL cell; PointToCELL(screen, event->xbutton.y, event->xbutton.x, &cell); if (isSameCELL(&cell, &lastButton3)) { /* A candidate for a double-click */ lastButton3DoubleDownTime = event->xbutton.time; PointToCELL(screen, event->xbutton.y, event->xbutton.x, &lastButton3); return 1; } lastButton3UpTime = 0; /* Disable the info about the previous click */ } /* Either too long, or moved, disable. */ lastButton3DoubleDownTime = 0; return 0; } static int rowOnCurrentLine(TScreen *screen, int line, int *deltap) /* must be XButtonEvent */ { int result = 1; *deltap = 0; if (line != screen->cur_row) { int l1, l2; if (line < screen->cur_row) l1 = line, l2 = screen->cur_row; else l2 = line, l1 = screen->cur_row; l1--; while (++l1 < l2) { LineData *ld = GET_LINEDATA(screen, l1); if (!LineTstWrapped(ld)) { result = 0; break; } } if (result) { /* Everything is on one "wrapped line" now */ *deltap = line - screen->cur_row; } } return result; } static int eventRow(TScreen *screen, XEvent *event) /* must be XButtonEvent */ { return (event->xbutton.y - screen->border) / FontHeight(screen); } static int eventColBetween(TScreen *screen, XEvent *event) /* must be XButtonEvent */ { /* Correct by half a width - we are acting on a boundary, not on a cell. */ return ((event->xbutton.x - OriginX(screen) + (FontWidth(screen) - 1) / 2) / FontWidth(screen)); } static int ReadLineMovePoint(TScreen *screen, int col, int ldelta) { Char line[6]; unsigned count = 0; col += ldelta * MaxCols(screen) - screen->cur_col; if (col == 0) return 0; if (screen->control_eight_bits) { line[count++] = ANSI_CSI; } else { line[count++] = ANSI_ESC; line[count++] = '['; /* XXX maybe sometimes O is better? */ } line[count] = CharOf(col > 0 ? 'C' : 'D'); if (col < 0) col = -col; while (col--) v_write(screen->respond, line, 3); return 1; } static int ReadLineDelete(TScreen *screen, CELL *cell1, CELL *cell2) { int del; del = (cell2->col - cell1->col) + ((cell2->row - cell1->row) * MaxCols(screen)); if (del <= 0) /* Just in case... */ return 0; while (del--) v_write(screen->respond, (const Char *) "\177", 1); return 1; } static void readlineExtend(XtermWidget xw, XEvent *event) { TScreen *screen = TScreenOf(xw); int ldelta1, ldelta2; if (IsBtnEvent(event)) { XButtonEvent *my_event = (XButtonEvent *) event; if (isClick1_clean(xw, my_event) && SCREEN_FLAG(screen, click1_moves) && rowOnCurrentLine(screen, eventRow(screen, event), &ldelta1)) { ReadLineMovePoint(screen, eventColBetween(screen, event), ldelta1); } if (isDoubleClick3(screen, my_event) && SCREEN_FLAG(screen, dclick3_deletes) && rowOnCurrentLine(screen, screen->startSel.row, &ldelta1) && rowOnCurrentLine(screen, screen->endSel.row, &ldelta2)) { ReadLineMovePoint(screen, screen->endSel.col, ldelta2); ReadLineDelete(screen, &screen->startSel, &(screen->endSel)); } } } #endif /* OPT_READLINE */ /* ^XM-G */ void DiredButton(Widget w, XEvent *event, /* must be XButtonEvent */ String *params GCC_UNUSED, /* selections */ Cardinal *num_params GCC_UNUSED) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); if (IsBtnEvent(event) && (event->xbutton.y >= screen->border) && (event->xbutton.x >= OriginX(screen))) { Char Line[6]; unsigned line, col; line = (unsigned) ((event->xbutton.y - screen->border) / FontHeight(screen)); col = (unsigned) ((event->xbutton.x - OriginX(screen)) / FontWidth(screen)); Line[0] = CONTROL('X'); Line[1] = ANSI_ESC; Line[2] = 'G'; Line[3] = CharOf(' ' + col); Line[4] = CharOf(' ' + line); v_write(screen->respond, Line, 5); } } } #if OPT_READLINE void ReadLineButton(Widget w, XEvent *event, /* must be XButtonEvent */ String *params GCC_UNUSED, /* selections */ Cardinal *num_params GCC_UNUSED) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); Char Line[6]; int line, col, ldelta = 0; if (!IsBtnEvent(event) || (okSendMousePos(xw) != MOUSE_OFF) || ExtendingSelection) goto finish; if (event->type == ButtonRelease) { int delta; if (lastButtonDownTime == (Time) 0) { /* first time and once in a blue moon */ delta = screen->multiClickTime + 1; } else if (event->xbutton.time > lastButtonDownTime) { /* most of the time */ delta = (int) (event->xbutton.time - lastButtonDownTime); } else { /* time has rolled over since lastButtonUpTime */ delta = (int) ((((Time) ~ 0) - lastButtonDownTime) + event->xbutton.time); } if (delta > screen->multiClickTime) goto finish; /* All this work for this... */ } line = (event->xbutton.y - screen->border) / FontHeight(screen); if (!rowOnCurrentLine(screen, line, &ldelta)) goto finish; /* Correct by half a width - we are acting on a boundary, not on a cell. */ col = (event->xbutton.x - OriginX(screen) + (FontWidth(screen) - 1) / 2) / FontWidth(screen) - screen->cur_col + ldelta * MaxCols(screen); if (col == 0) goto finish; Line[0] = ANSI_ESC; /* XXX: sometimes it is better to send '['? */ Line[1] = 'O'; Line[2] = CharOf(col > 0 ? 'C' : 'D'); if (col < 0) col = -col; while (col--) v_write(screen->respond, Line, 3); finish: if (event->type == ButtonRelease) do_select_end(xw, event, params, num_params, False); } } #endif /* OPT_READLINE */ /* repeats n or p */ void ViButton(Widget w, XEvent *event, /* must be XButtonEvent */ String *params GCC_UNUSED, /* selections */ Cardinal *num_params GCC_UNUSED) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); int pty = screen->respond; if (IsBtnEvent(event)) { int line; line = screen->cur_row - ((event->xbutton.y - screen->border) / FontHeight(screen)); if (line != 0) { Char Line[6]; Line[0] = ANSI_ESC; /* force an exit from insert-mode */ v_write(pty, Line, 1); if (line < 0) { line = -line; Line[0] = CONTROL('n'); } else { Line[0] = CONTROL('p'); } while (--line >= 0) v_write(pty, Line, 1); } } } } /* * This function handles button-motion events */ /*ARGSUSED*/ void HandleSelectExtend(Widget w, XEvent *event, /* must be XMotionEvent */ String *params GCC_UNUSED, Cardinal *num_params GCC_UNUSED) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); CELL cell; TRACE(("HandleSelectExtend @%ld\n", event->xmotion.time)); screen->selection_time = event->xmotion.time; switch (screen->eventMode) { /* If not in one of the DEC mouse-reporting modes */ case LEFTEXTENSION: case RIGHTEXTENSION: PointToCELL(screen, event->xmotion.y, event->xmotion.x, &cell); ExtendExtend(xw, &cell); break; /* If in motion reporting mode, send mouse position to character process as a key sequence \E[M... */ case NORMAL: /* will get here if send_mouse_pos != MOUSE_OFF */ if (okSendMousePos(xw) == BTN_EVENT_MOUSE || okSendMousePos(xw) == ANY_EVENT_MOUSE) { (void) SendMousePosition(xw, event); } break; } } } void HandleKeyboardSelectExtend(Widget w, XEvent *event GCC_UNUSED, /* must be XButtonEvent */ String *params GCC_UNUSED, Cardinal *num_params GCC_UNUSED) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); TRACE(("HandleKeyboardSelectExtend\n")); ExtendExtend(xw, &screen->cursorp); } } static void do_select_end(XtermWidget xw, XEvent *event, /* must be XButtonEvent */ String *params, /* selections */ Cardinal *num_params, Bool use_cursor_loc) { TScreen *screen = TScreenOf(xw); screen->selection_time = event->xbutton.time; TRACE(("do_select_end @%ld\n", screen->selection_time)); switch (screen->eventMode) { case NORMAL: (void) SendMousePosition(xw, event); break; case LEFTEXTENSION: case RIGHTEXTENSION: EndExtend(xw, event, params, *num_params, use_cursor_loc); #if OPT_READLINE readlineExtend(xw, event); #endif /* OPT_READLINE */ break; } } void HandleSelectEnd(Widget w, XEvent *event, /* must be XButtonEvent */ String *params, /* selections */ Cardinal *num_params) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleSelectEnd\n")); do_select_end(xw, event, params, num_params, False); } } void HandleKeyboardSelectEnd(Widget w, XEvent *event, /* must be XButtonEvent */ String *params, /* selections */ Cardinal *num_params) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleKeyboardSelectEnd\n")); do_select_end(xw, event, params, num_params, True); } } /* * Copy the selection data to the given target(s). */ void HandleCopySelection(Widget w, XEvent *event, String *params, /* list of targets */ Cardinal *num_params) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleCopySelection\n")); SelectSet(xw, event, params, *num_params); } } struct _SelectionList { String *params; Cardinal count; Atom *targets; Time time; }; static unsigned DECtoASCII(unsigned ch) { if (xtermIsDecGraphic(ch)) { ch = CharOf("###########+++++##-##++++|######"[ch]); /* 01234567890123456789012345678901 */ } return ch; } #if OPT_WIDE_CHARS static Cardinal addXtermChar(Char **buffer, Cardinal *used, Cardinal offset, unsigned value) { if (offset + 1 >= *used) { *used = 1 + (2 * (offset + 1)); allocXtermChars(buffer, *used); } (*buffer)[offset++] = (Char) value; return offset; } #define AddChar(buffer, used, offset, value) \ offset = addXtermChar(buffer, used, offset, (unsigned) value) /* * Convert a UTF-8 string to Latin-1, replacing non Latin-1 characters by `#', * or ASCII/Latin-1 equivalents for special cases. */ static Char * UTF8toLatin1(TScreen *screen, Char *s, unsigned long len, unsigned long *result) { static Char *buffer; static Cardinal used; Cardinal offset = 0; if (len != 0) { PtyData data; fakePtyData(&data, s, s + len); while (decodeUtf8(screen, &data)) { Bool fails = False; Bool extra = False; IChar value = skipPtyData(&data); if (value == UCS_REPL) { fails = True; } else if (value < 256) { AddChar(&buffer, &used, offset, CharOf(value)); } else { unsigned eqv = ucs2dec(value); if (xtermIsDecGraphic(eqv)) { AddChar(&buffer, &used, offset, DECtoASCII(eqv)); } else { eqv = AsciiEquivs(value); if (eqv == value) { fails = True; } else { AddChar(&buffer, &used, offset, eqv); } if (isWide((wchar_t) value)) extra = True; } } /* * If we're not able to plug in a single-byte result, insert the * defaultString (which normally is a single "#", but could be * whatever the user wants). */ if (fails) { const Char *p; for (p = (const Char *) screen->default_string; *p != '\0'; ++p) { AddChar(&buffer, &used, offset, *p); } } if (extra) AddChar(&buffer, &used, offset, ' '); } AddChar(&buffer, &used, offset, '\0'); *result = (unsigned long) (offset - 1); } else { *result = 0; } return buffer; } int xtermUtf8ToTextList(XtermWidget xw, XTextProperty * text_prop, char ***text_list, int *text_list_count) { TScreen *screen = TScreenOf(xw); Display *dpy = screen->display; int rc = -1; if (text_prop->format == 8 && (rc = Xutf8TextPropertyToTextList(dpy, text_prop, text_list, text_list_count)) >= 0) { if (*text_list != NULL && *text_list_count != 0) { int i; Char *data; char **new_text_list, *tmp; unsigned long size, new_size; TRACE(("xtermUtf8ToTextList size %d\n", *text_list_count)); /* * XLib StringList actually uses only two pointers, one for the * list itself, and one for the data. Pointer to the data is the * first element of the list, the rest (if any) list elements point * to the same memory block as the first element */ new_size = 0; for (i = 0; i < *text_list_count; ++i) { data = (Char *) (*text_list)[i]; size = strlen((*text_list)[i]) + 1; (void) UTF8toLatin1(screen, data, size, &size); new_size += size + 1; } new_text_list = TypeXtMallocN(char *, *text_list_count); new_text_list[0] = tmp = XtMalloc((Cardinal) new_size); for (i = 0; i < (*text_list_count); ++i) { data = (Char *) (*text_list)[i]; size = strlen((*text_list)[i]) + 1; if ((data = UTF8toLatin1(screen, data, size, &size)) != 0) { memcpy(tmp, data, size + 1); new_text_list[i] = tmp; tmp += size + 1; } } XFreeStringList((*text_list)); *text_list = new_text_list; } else { rc = -1; } } return rc; } #endif /* OPT_WIDE_CHARS */ static char * parseItem(char *value, char *nextc) { char *nextp = value; while (*nextp != '\0' && *nextp != ',') { *nextp = x_toupper(*nextp); ++nextp; } *nextc = *nextp; *nextp = '\0'; return nextp; } /* * All of the wanted strings are unique in the first character, so we can * use simple abbreviations. */ static Bool sameItem(const char *actual, const char *wanted) { Bool result = False; size_t have = strlen(actual); size_t need = strlen(wanted); if (have != 0 && have <= need) { if (!strncmp(actual, wanted, have)) { TRACE(("...matched \"%s\"\n", wanted)); result = True; } } return result; } /* * Handle the eightBitSelectTypes or utf8SelectTypes resource values. */ static Bool overrideTargets(Widget w, String value, Atom **resultp) { Bool override = False; XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); if (!IsEmpty(value)) { char *copied = x_strdup(value); if (copied != 0) { Atom *result = 0; Cardinal count = 1; int n; TRACE(("decoding SelectTypes \"%s\"\n", value)); for (n = 0; copied[n] != '\0'; ++n) { if (copied[n] == ',') ++count; } result = TypeXtMallocN(Atom, (2 * count) + 1); if (result == NULL) { TRACE(("Couldn't allocate selection types\n")); } else { char nextc = '?'; char *listp = (char *) copied; count = 0; do { char *nextp = parseItem(listp, &nextc); char *item = x_strtrim(listp); size_t len = (item ? strlen(item) : 0); if (len == 0) { /* EMPTY */ ; } #if OPT_WIDE_CHARS else if (sameItem(item, "UTF8")) { result[count++] = XA_UTF8_STRING(XtDisplay(w)); } #endif else if (sameItem(item, "I18N")) { if (screen->i18nSelections) { result[count++] = XA_TEXT(XtDisplay(w)); result[count++] = XA_COMPOUND_TEXT(XtDisplay(w)); } } else if (sameItem(item, "TEXT")) { result[count++] = XA_TEXT(XtDisplay(w)); } else if (sameItem(item, "COMPOUND_TEXT")) { result[count++] = XA_COMPOUND_TEXT(XtDisplay(w)); } else if (sameItem(item, "STRING")) { result[count++] = XA_STRING; } *nextp++ = nextc; listp = nextp; free(item); } while (nextc != '\0'); if (count) { result[count] = None; override = True; *resultp = result; } else { XtFree((char *) result); } } free(copied); } else { TRACE(("Couldn't allocate copy of selection types\n")); } } } return override; } #if OPT_WIDE_CHARS static Atom * allocUtf8Targets(Widget w, TScreen *screen) { Atom **resultp = &(screen->selection_targets_utf8); if (*resultp == 0) { Atom *result; if (!overrideTargets(w, screen->utf8_select_types, &result)) { result = TypeXtMallocN(Atom, 5); if (result == NULL) { TRACE(("Couldn't allocate utf-8 selection targets\n")); } else { int n = 0; if (XSupportsLocale()) { result[n++] = XA_UTF8_STRING(XtDisplay(w)); #ifdef X_HAVE_UTF8_STRING if (screen->i18nSelections) { result[n++] = XA_TEXT(XtDisplay(w)); result[n++] = XA_COMPOUND_TEXT(XtDisplay(w)); } #endif } result[n++] = XA_STRING; result[n] = None; } } *resultp = result; } return *resultp; } #endif static Atom * alloc8bitTargets(Widget w, TScreen *screen) { Atom **resultp = &(screen->selection_targets_8bit); if (*resultp == 0) { Atom *result = 0; if (!overrideTargets(w, screen->eightbit_select_types, &result)) { result = TypeXtMallocN(Atom, 5); if (result == NULL) { TRACE(("Couldn't allocate 8bit selection targets\n")); } else { int n = 0; if (XSupportsLocale()) { #ifdef X_HAVE_UTF8_STRING result[n++] = XA_UTF8_STRING(XtDisplay(w)); #endif if (screen->i18nSelections) { result[n++] = XA_TEXT(XtDisplay(w)); result[n++] = XA_COMPOUND_TEXT(XtDisplay(w)); } } result[n++] = XA_STRING; result[n] = None; } } *resultp = result; } return *resultp; } static Atom * _SelectionTargets(Widget w) { Atom *result; XtermWidget xw; if ((xw = getXtermWidget(w)) == 0) { result = NULL; } else { TScreen *screen = TScreenOf(xw); #if OPT_WIDE_CHARS if (screen->wide_chars) { result = allocUtf8Targets(w, screen); } else #endif { /* not screen->wide_chars */ result = alloc8bitTargets(w, screen); } } return result; } #define isSELECT(value) (!strcmp(value, "SELECT")) static void UnmapSelections(XtermWidget xw) { TScreen *screen = TScreenOf(xw); Cardinal n; if (screen->mappedSelect) { for (n = 0; screen->mappedSelect[n] != 0; ++n) free((void *) screen->mappedSelect[n]); free(screen->mappedSelect); screen->mappedSelect = 0; } } /* * xterm generally uses the primary selection. Some applications prefer * (or are limited to) the clipboard. Since the translations resource is * complicated, users seldom change the way it affects selection. But it * is simple to remap the choice between primary and clipboard before the * call to XmuInternStrings(). */ static String * MapSelections(XtermWidget xw, String *params, Cardinal num_params) { String *result = params; if (params != 0 && num_params > 0) { Cardinal j; Boolean map = False; for (j = 0; j < num_params; ++j) { TRACE(("param[%d]:%s\n", j, params[j])); if (isSELECT(params[j])) { map = True; break; } } if (map) { TScreen *screen = TScreenOf(xw); const char *mapTo = (screen->selectToClipboard ? "CLIPBOARD" : "PRIMARY"); UnmapSelections(xw); if ((result = TypeMallocN(String, num_params + 1)) != 0) { result[num_params] = 0; for (j = 0; j < num_params; ++j) { result[j] = x_strdup((isSELECT(params[j]) ? mapTo : params[j])); if (result[j] == 0) { UnmapSelections(xw); while (j != 0) { free((void *) result[--j]); } free(result); result = 0; break; } } screen->mappedSelect = result; } } } return result; } /* * Lookup the cut-buffer number, which will be in the range 0-7. * If it is not a cut-buffer, it is the primary selection (-1). */ static int CutBuffer(Atom code) { int cutbuffer; switch ((unsigned) code) { case XA_CUT_BUFFER0: cutbuffer = 0; break; case XA_CUT_BUFFER1: cutbuffer = 1; break; case XA_CUT_BUFFER2: cutbuffer = 2; break; case XA_CUT_BUFFER3: cutbuffer = 3; break; case XA_CUT_BUFFER4: cutbuffer = 4; break; case XA_CUT_BUFFER5: cutbuffer = 5; break; case XA_CUT_BUFFER6: cutbuffer = 6; break; case XA_CUT_BUFFER7: cutbuffer = 7; break; default: cutbuffer = -1; break; } TRACE(("CutBuffer(%d) = %d\n", (int) code, cutbuffer)); return cutbuffer; } #if OPT_PASTE64 static void FinishPaste64(XtermWidget xw) { TScreen *screen = TScreenOf(xw); TRACE(("FinishPaste64(%d)\n", screen->base64_paste)); if (screen->base64_paste) { screen->base64_paste = 0; unparseputc1(xw, screen->base64_final); unparse_end(xw); } } #endif #if !OPT_PASTE64 static #endif void xtermGetSelection(Widget w, Time ev_time, String *params, /* selections in precedence order */ Cardinal num_params, Atom *targets) { Atom selection; int cutbuffer; Atom target; XtermWidget xw; if (num_params == 0) return; if ((xw = getXtermWidget(w)) == 0) return; TRACE(("xtermGetSelection num_params %d @%ld\n", num_params, ev_time)); params = MapSelections(xw, params, num_params); XmuInternStrings(XtDisplay(w), params, (Cardinal) 1, &selection); cutbuffer = CutBuffer(selection); TRACE(("Cutbuffer: %d, target: %s\n", cutbuffer, (targets ? visibleSelectionTarget(XtDisplay(w), targets[0]) : "None"))); if (cutbuffer >= 0) { int inbytes; unsigned long nbytes; int fmt8 = 8; Atom type = XA_STRING; char *line; /* 'line' is freed in SelectionReceived */ line = XFetchBuffer(XtDisplay(w), &inbytes, cutbuffer); nbytes = (unsigned long) inbytes; if (nbytes > 0) { SelectionReceived(w, NULL, &selection, &type, (XtPointer) line, &nbytes, &fmt8); } else if (num_params > 1) { xtermGetSelection(w, ev_time, params + 1, num_params - 1, NULL); } #if OPT_PASTE64 else { FinishPaste64(xw); } #endif } else { if (targets == NULL || targets[0] == None) { targets = _SelectionTargets(w); } if (targets != 0) { struct _SelectionList *list; target = targets[0]; if (targets[1] == None) { /* last target in list */ params++; num_params--; targets = _SelectionTargets(w); } else { targets = &(targets[1]); } if (num_params) { /* 'list' is freed in SelectionReceived */ list = TypeXtMalloc(struct _SelectionList); if (list != 0) { list->params = params; list->count = num_params; list->targets = targets; list->time = ev_time; } } else { list = NULL; } XtGetSelectionValue(w, selection, target, SelectionReceived, (XtPointer) list, ev_time); } } } #if OPT_TRACE && OPT_WIDE_CHARS static void GettingSelection(Display *dpy, Atom type, Char *line, unsigned long len) { Char *cp; const char *name = TraceAtomName(dpy, type); TRACE(("Getting %s (type=%ld, length=%ld)\n", name, (long int) type, len)); for (cp = line; cp < line + len; cp++) { TRACE(("[%d:%lu]", (int) (cp + 1 - line), len)); if (isprint(*cp)) { TRACE(("%c\n", *cp)); } else { TRACE(("\\x%02x\n", *cp)); } } } #else #define GettingSelection(dpy,type,line,len) /* nothing */ #endif #ifdef VMS # define tty_vwrite(pty,lag,l) tt_write(lag,l) #else /* !( VMS ) */ # define tty_vwrite(pty,lag,l) v_write(pty,lag,l) #endif /* defined VMS */ #if OPT_PASTE64 /* Return base64 code character given 6-bit number */ static const char base64_code[] = "\ ABCDEFGHIJKLMNOPQRSTUVWXYZ\ abcdefghijklmnopqrstuvwxyz\ 0123456789+/"; static void base64_flush(TScreen *screen) { Char x; TRACE(("base64_flush count %d, pad %d (%d)\n", screen->base64_count, screen->base64_pad, screen->base64_pad & 3)); switch (screen->base64_count) { case 0: break; case 2: x = CharOf(base64_code[screen->base64_accu << 4]); tty_vwrite(screen->respond, &x, 1); break; case 4: x = CharOf(base64_code[screen->base64_accu << 2]); tty_vwrite(screen->respond, &x, 1); break; } if (screen->base64_pad & 3) { tty_vwrite(screen->respond, (const Char *) "===", (unsigned) (3 - (screen->base64_pad & 3))); } screen->base64_count = 0; screen->base64_accu = 0; screen->base64_pad = 0; } #endif /* OPT_PASTE64 */ /* * Translate ISO-8859-1 or UTF-8 data to NRCS. */ static void ToNational(TScreen *screen, Char *buffer, unsigned *length) { int gsetL = screen->gsets[screen->curgl]; int gsetR = screen->gsets[screen->curgr]; #if OPT_WIDE_CHARS if ((screen->utf8_nrc_mode | screen->utf8_mode) != uFalse) { Char *p; PtyData *data = TypeXtMallocX(PtyData, *length); memset(data, 0, sizeof(*data)); data->next = data->buffer; data->last = data->buffer + *length; memcpy(data->buffer, buffer, (size_t) *length); p = buffer; while (data->next < data->last) { unsigned chr, out, gl, gr; if (!decodeUtf8(screen, data)) { data->utf_size = 1; data->utf_data = data->next[0]; } data->next += data->utf_size; chr = data->utf_data; out = chr; if ((gl = xtermCharSetIn(screen, chr, gsetL)) != chr) { out = gl; } else if ((gr = xtermCharSetIn(screen, chr, gsetR)) != chr) { out = gr; } *p++ = (Char) ((out < 256) ? out : ' '); } *length = (unsigned) (p - buffer); free(data); } else #endif { Char *p; for (p = buffer; (int) (p - buffer) < (int) *length; ++p) { unsigned gl, gr; unsigned chr = *p; unsigned out = chr; if ((gl = xtermCharSetIn(screen, chr, gsetL)) != chr) { out = gl; } else if ((gr = xtermCharSetIn(screen, chr, gsetR)) != chr) { out = gr; } *p = (Char) out; } } } static void _qWriteSelectionData(XtermWidget xw, Char *lag, unsigned length) { TScreen *screen = TScreenOf(xw); /* * If we are pasting into a window which is using NRCS, we want to map * the text from the normal encoding (ISO-8859-1 or UTF-8) into the coding * that an application would use to write characters with NRCS. * * TODO: handle conversion from UTF-8, and adjust length. This can be done * in the same buffer because the target is always 8-bit. */ if ((xw->flags & NATIONAL) && (length != 0)) { ToNational(screen, lag, &length); } #if OPT_PASTE64 if (screen->base64_paste) { /* Send data as base64 */ Char *p = lag; Char buf[64]; unsigned x = 0; TRACE(("convert to base64 %d:%s\n", length, visibleChars(p, length))); /* * Handle the case where the selection is from _this_ xterm, which * puts part of the reply in the buffer before the selection callback * happens. */ if (screen->base64_paste && screen->unparse_len) { unparse_end(xw); } while (length--) { switch (screen->base64_count) { case 0: buf[x++] = CharOf(base64_code[*p >> 2]); screen->base64_accu = (unsigned) (*p & 0x3); screen->base64_count = 2; ++p; break; case 2: buf[x++] = CharOf(base64_code[(screen->base64_accu << 4) + (*p >> 4)]); screen->base64_accu = (unsigned) (*p & 0xF); screen->base64_count = 4; ++p; break; case 4: buf[x++] = CharOf(base64_code[(screen->base64_accu << 2) + (*p >> 6)]); buf[x++] = CharOf(base64_code[*p & 0x3F]); screen->base64_accu = 0; screen->base64_count = 0; ++p; break; } if (x >= 63) { /* Write 63 or 64 characters */ screen->base64_pad += x; TRACE(("writing base64 interim %s\n", visibleChars(buf, x))); tty_vwrite(screen->respond, buf, x); x = 0; } } if (x != 0) { screen->base64_pad += x; TRACE(("writing base64 finish %s\n", visibleChars(buf, x))); tty_vwrite(screen->respond, buf, x); } } else #endif /* OPT_PASTE64 */ #if OPT_READLINE if (SCREEN_FLAG(screen, paste_quotes)) { while (length--) { tty_vwrite(screen->respond, (const Char *) "\026", 1); /* Control-V */ tty_vwrite(screen->respond, lag++, 1); } } else #endif { TRACE(("writing base64 padding %s\n", visibleChars(lag, length))); tty_vwrite(screen->respond, lag, length); } } static void _WriteSelectionData(XtermWidget xw, Char *line, size_t length) { /* Write data to pty a line at a time. */ /* Doing this one line at a time may no longer be necessary because v_write has been re-written. */ #if OPT_PASTE64 TScreen *screen = TScreenOf(xw); #endif Char *lag, *end; /* in the VMS version, if tt_pasting isn't set to True then qio reads aren't blocked and an infinite loop is entered, where the pasted text shows up as new input, goes in again, shows up again, ad nauseum. */ #ifdef VMS tt_pasting = True; #endif end = &line[length]; lag = line; #if OPT_PASTE64 if (screen->base64_paste) { _qWriteSelectionData(xw, lag, (unsigned) (end - lag)); base64_flush(screen); } else #endif { if (!SCREEN_FLAG(screen, paste_literal_nl)) { Char *cp; for (cp = line; cp != end; cp++) { if (*cp == '\n') { *cp = '\r'; _qWriteSelectionData(xw, lag, (unsigned) (cp - lag + 1)); lag = cp + 1; } } } if (lag != end) { _qWriteSelectionData(xw, lag, (unsigned) (end - lag)); } } #ifdef VMS tt_pasting = False; tt_start_read(); /* reenable reads or a character may be lost */ #endif } #if OPT_READLINE static void _WriteKey(TScreen *screen, const Char *in) { Char line[16]; unsigned count = 0; size_t length = strlen((const char *) in); if (screen->control_eight_bits) { line[count++] = ANSI_CSI; } else { line[count++] = ANSI_ESC; line[count++] = '['; } while (length--) line[count++] = *in++; line[count++] = '~'; tty_vwrite(screen->respond, line, count); } #endif /* OPT_READLINE */ /* * Unless enabled by the user, strip control characters other than formatting. */ static size_t removeControls(XtermWidget xw, char *value) { TScreen *screen = TScreenOf(xw); size_t dst = 0; if (screen->allowPasteControls) { dst = strlen(value); } else { size_t src = 0; while ((value[dst] = value[src]) != '\0') { int ch = CharOf(value[src++]); if (ch < 32) { switch (ch) { case '\b': case '\t': case '\n': case '\r': ++dst; break; default: continue; } } #if OPT_WIDE_CHARS else if (screen->utf8_inparse || screen->utf8_nrc_mode) ++dst; #endif #if OPT_C1_PRINT || OPT_WIDE_CHARS else if (screen->c1_printable) ++dst; #endif else if (ch >= 128 && ch < 160) continue; else ++dst; } } return dst; } /* SelectionReceived: stuff received selection text into pty */ /* ARGSUSED */ static void SelectionReceived(Widget w, XtPointer client_data, Atom *selection GCC_UNUSED, Atom *type, XtPointer value, unsigned long *length, int *format) { char **text_list = NULL; int text_list_count = 0; XTextProperty text_prop; TScreen *screen; Display *dpy; #if OPT_TRACE && OPT_WIDE_CHARS Char *line = (Char *) value; #endif XtermWidget xw; if ((xw = getXtermWidget(w)) == 0) return; screen = TScreenOf(xw); dpy = XtDisplay(w); if (*type == 0 /*XT_CONVERT_FAIL */ || *length == 0 || value == NULL) { TRACE(("...no data to convert\n")); goto fail; } text_prop.value = (unsigned char *) value; text_prop.encoding = *type; text_prop.format = *format; text_prop.nitems = *length; TRACE(("SelectionReceived %s %s format %d, nitems %ld\n", TraceAtomName(screen->display, *selection), visibleSelectionTarget(dpy, text_prop.encoding), text_prop.format, text_prop.nitems)); #if OPT_WIDE_CHARS if (XSupportsLocale() && screen->wide_chars) { if (*type == XA_UTF8_STRING(dpy) || *type == XA_STRING || *type == XA_COMPOUND_TEXT(dpy)) { GettingSelection(dpy, *type, line, *length); if (Xutf8TextPropertyToTextList(dpy, &text_prop, &text_list, &text_list_count) < 0) { TRACE(("default Xutf8 Conversion failed\n")); text_list = NULL; } } } else #endif /* OPT_WIDE_CHARS */ { /* Convert the selection to locale's multibyte encoding. */ if (*type == XA_UTF8_STRING(dpy) || *type == XA_STRING || *type == XA_COMPOUND_TEXT(dpy)) { Status rc; GettingSelection(dpy, *type, line, *length); #if OPT_WIDE_CHARS if (*type == XA_UTF8_STRING(dpy) && !(screen->wide_chars || screen->c1_printable)) { rc = xtermUtf8ToTextList(xw, &text_prop, &text_list, &text_list_count); } else #endif if (*type == XA_STRING && (!XSupportsLocale() || screen->brokenSelections)) { rc = XTextPropertyToStringList(&text_prop, &text_list, &text_list_count); } else { rc = XmbTextPropertyToTextList(dpy, &text_prop, &text_list, &text_list_count); } if (rc < 0) { TRACE(("Conversion failed\n")); text_list = NULL; } } } if (text_list != NULL && text_list_count != 0) { int i; #if OPT_PASTE64 if (screen->base64_paste) { /* EMPTY */ ; } else #endif #if OPT_READLINE if (SCREEN_FLAG(screen, paste_brackets)) { _WriteKey(screen, (const Char *) "200"); } #endif for (i = 0; i < text_list_count; i++) { size_t len = removeControls(xw, text_list[i]); if (screen->selectToBuffer) { InternalSelect *mydata = &(screen->internal_select); size_t have = (mydata->buffer ? strlen(mydata->buffer) : 0); size_t need = have + len + 1; char *buffer = realloc(mydata->buffer, need); screen->selectToBuffer = False; #if OPT_PASTE64 screen->base64_paste = mydata->base64_paste; #endif #if OPT_READLINE screen->paste_brackets = mydata->paste_brackets; #endif if (buffer != 0) { strcpy(buffer + have, text_list[i]); mydata->buffer = buffer; } TRACE(("FormatSelect %d.%d .. %d.%d %s\n", screen->startSel.row, screen->startSel.col, screen->endSel.row, screen->endSel.col, mydata->buffer)); mydata->format_select(w, mydata->format, mydata->buffer, &(screen->startSel), &(screen->endSel)); free(mydata->format); free(mydata->buffer); memset(mydata, 0, sizeof(*mydata)); } else { _WriteSelectionData(xw, (Char *) text_list[i], len); } } #if OPT_PASTE64 if (screen->base64_paste) { FinishPaste64(xw); } else #endif #if OPT_READLINE if (SCREEN_FLAG(screen, paste_brackets)) { _WriteKey(screen, (const Char *) "201"); } #endif XFreeStringList(text_list); } else { TRACE(("...empty text-list\n")); goto fail; } XtFree((char *) client_data); XtFree((char *) value); return; fail: if (client_data != 0) { struct _SelectionList *list = (struct _SelectionList *) client_data; TRACE(("SelectionReceived ->xtermGetSelection\n")); xtermGetSelection(w, list->time, list->params, list->count, list->targets); XtFree((char *) client_data); #if OPT_PASTE64 } else { FinishPaste64(xw); #endif } return; } void HandleInsertSelection(Widget w, XEvent *event, /* assumed to be XButtonEvent* */ String *params, /* selections in precedence order */ Cardinal *num_params) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleInsertSelection\n")); if (!SendMousePosition(xw, event)) { #if OPT_READLINE int ldelta; TScreen *screen = TScreenOf(xw); if (IsBtnEvent(event) /* Disable on Shift-mouse, including the application-mouse modes */ && !(KeyModifiers(event) & ShiftMask) && (okSendMousePos(xw) == MOUSE_OFF) && SCREEN_FLAG(screen, paste_moves) && rowOnCurrentLine(screen, eventRow(screen, event), &ldelta)) ReadLineMovePoint(screen, eventColBetween(screen, event), ldelta); #endif /* OPT_READLINE */ xtermGetSelection(w, event->xbutton.time, params, *num_params, NULL); } } } static SelectUnit EvalSelectUnit(XtermWidget xw, Time buttonDownTime, SelectUnit defaultUnit, unsigned int button) { TScreen *screen = TScreenOf(xw); SelectUnit result; int delta; if (button != screen->lastButton) { delta = screen->multiClickTime + 1; } else if (screen->lastButtonUpTime == (Time) 0) { /* first time and once in a blue moon */ delta = screen->multiClickTime + 1; } else if (buttonDownTime > screen->lastButtonUpTime) { /* most of the time */ delta = (int) (buttonDownTime - screen->lastButtonUpTime); } else { /* time has rolled over since lastButtonUpTime */ delta = (int) ((((Time) ~ 0) - screen->lastButtonUpTime) + buttonDownTime); } if (delta > screen->multiClickTime) { screen->numberOfClicks = 1; result = defaultUnit; } else { result = screen->selectMap[screen->numberOfClicks % screen->maxClicks]; screen->numberOfClicks += 1; } TRACE(("EvalSelectUnit(%d) = %d\n", screen->numberOfClicks, result)); return result; } static void do_select_start(XtermWidget xw, XEvent *event, /* must be XButtonEvent* */ CELL *cell) { TScreen *screen = TScreenOf(xw); if (SendMousePosition(xw, event)) return; screen->selectUnit = EvalSelectUnit(xw, event->xbutton.time, Select_CHAR, event->xbutton.button); screen->replyToEmacs = False; #if OPT_READLINE lastButtonDownTime = event->xbutton.time; #endif StartSelect(xw, cell); } /* ARGSUSED */ void HandleSelectStart(Widget w, XEvent *event, /* must be XButtonEvent* */ String *params GCC_UNUSED, Cardinal *num_params GCC_UNUSED) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); CELL cell; TRACE(("HandleSelectStart\n")); screen->firstValidRow = 0; screen->lastValidRow = screen->max_row; PointToCELL(screen, event->xbutton.y, event->xbutton.x, &cell); #if OPT_READLINE ExtendingSelection = 0; #endif do_select_start(xw, event, &cell); } } /* ARGSUSED */ void HandleKeyboardSelectStart(Widget w, XEvent *event, /* must be XButtonEvent* */ String *params GCC_UNUSED, Cardinal *num_params GCC_UNUSED) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); TRACE(("HandleKeyboardSelectStart\n")); do_select_start(xw, event, &screen->cursorp); } } static void TrackDown(XtermWidget xw, XButtonEvent *event) { TScreen *screen = TScreenOf(xw); CELL cell; screen->selectUnit = EvalSelectUnit(xw, event->time, Select_CHAR, event->button); if (screen->numberOfClicks > 1) { PointToCELL(screen, event->y, event->x, &cell); screen->replyToEmacs = True; StartSelect(xw, &cell); } else { screen->waitingForTrackInfo = True; EditorButton(xw, event); } } #define boundsCheck(x) if (x < 0) \ x = 0; \ else if (x >= screen->max_row) \ x = screen->max_row void TrackMouse(XtermWidget xw, int func, CELL *start, int firstrow, int lastrow) { TScreen *screen = TScreenOf(xw); if (screen->waitingForTrackInfo) { /* if Timed, ignore */ screen->waitingForTrackInfo = False; if (func != 0) { CELL first = *start; boundsCheck(first.row); boundsCheck(firstrow); boundsCheck(lastrow); screen->firstValidRow = firstrow; screen->lastValidRow = lastrow; screen->replyToEmacs = True; StartSelect(xw, &first); } } } static void StartSelect(XtermWidget xw, const CELL *cell) { TScreen *screen = TScreenOf(xw); TRACE(("StartSelect row=%d, col=%d\n", cell->row, cell->col)); if (screen->cursor_state) HideCursor(); if (screen->numberOfClicks == 1) { /* set start of selection */ screen->rawPos = *cell; } /* else use old values in rawPos */ screen->saveStartR = screen->startExt = screen->rawPos; screen->saveEndR = screen->endExt = screen->rawPos; if (Coordinate(screen, cell) < Coordinate(screen, &(screen->rawPos))) { screen->eventMode = LEFTEXTENSION; screen->startExt = *cell; } else { screen->eventMode = RIGHTEXTENSION; screen->endExt = *cell; } ComputeSelect(xw, &(screen->startExt), &(screen->endExt), False); } static void EndExtend(XtermWidget xw, XEvent *event, /* must be XButtonEvent */ String *params, /* selections */ Cardinal num_params, Bool use_cursor_loc) { CELL cell; TScreen *screen = TScreenOf(xw); if (use_cursor_loc) { cell = screen->cursorp; } else { PointToCELL(screen, event->xbutton.y, event->xbutton.x, &cell); } ExtendExtend(xw, &cell); screen->lastButtonUpTime = event->xbutton.time; screen->lastButton = event->xbutton.button; if (!isSameCELL(&(screen->startSel), &(screen->endSel))) { if (screen->replyToEmacs) { Char line[64]; unsigned count = 0; if (screen->control_eight_bits) { line[count++] = ANSI_CSI; } else { line[count++] = ANSI_ESC; line[count++] = '['; } if (isSameCELL(&(screen->rawPos), &(screen->startSel)) && isSameCELL(&cell, &(screen->endSel))) { /* Use short-form emacs select */ switch (screen->extend_coords) { case 0: case SET_EXT_MODE_MOUSE: line[count++] = 't'; break; case SET_SGR_EXT_MODE_MOUSE: line[count++] = '<'; break; } count = EmitMousePosition(screen, line, count, screen->endSel.col); count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, screen->endSel.row); switch (screen->extend_coords) { case SET_SGR_EXT_MODE_MOUSE: case SET_URXVT_EXT_MODE_MOUSE: line[count++] = 't'; break; } } else { /* long-form, specify everything */ switch (screen->extend_coords) { case 0: case SET_EXT_MODE_MOUSE: line[count++] = 'T'; break; case SET_SGR_EXT_MODE_MOUSE: line[count++] = '<'; break; } count = EmitMousePosition(screen, line, count, screen->startSel.col); count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, screen->startSel.row); count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, screen->endSel.col); count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, screen->endSel.row); count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, cell.col); count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, cell.row); switch (screen->extend_coords) { case SET_SGR_EXT_MODE_MOUSE: case SET_URXVT_EXT_MODE_MOUSE: line[count++] = 'T'; break; } } v_write(screen->respond, line, count); TrackText(xw, &zeroCELL, &zeroCELL); } } SelectSet(xw, event, params, num_params); screen->eventMode = NORMAL; } void HandleSelectSet(Widget w, XEvent *event, String *params, Cardinal *num_params) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleSelectSet\n")); SelectSet(xw, event, params, *num_params); } } /* ARGSUSED */ static void SelectSet(XtermWidget xw, XEvent *event GCC_UNUSED, String *params, Cardinal num_params) { TScreen *screen = TScreenOf(xw); TRACE(("SelectSet\n")); /* Only do select stuff if non-null select */ if (!isSameCELL(&(screen->startSel), &(screen->endSel))) { SaltTextAway(xw, &(screen->startSel), &(screen->endSel)); _OwnSelection(xw, params, num_params); } else { ScrnDisownSelection(xw); } } #define Abs(x) ((x) < 0 ? -(x) : (x)) /* ARGSUSED */ static void do_start_extend(XtermWidget xw, XEvent *event, /* must be XButtonEvent* */ String *params GCC_UNUSED, Cardinal *num_params GCC_UNUSED, Bool use_cursor_loc) { TScreen *screen = TScreenOf(xw); int coord; CELL cell; if (SendMousePosition(xw, event)) return; screen->firstValidRow = 0; screen->lastValidRow = screen->max_row; #if OPT_READLINE if ((KeyModifiers(event) & ShiftMask) || event->xbutton.button != Button3 || !(SCREEN_FLAG(screen, dclick3_deletes))) #endif screen->selectUnit = EvalSelectUnit(xw, event->xbutton.time, screen->selectUnit, event->xbutton.button); screen->replyToEmacs = False; #if OPT_READLINE CheckSecondPress3(screen, event); #endif if (screen->numberOfClicks == 1 || (SCREEN_FLAG(screen, dclick3_deletes) /* Dclick special */ &&!(KeyModifiers(event) & ShiftMask))) { /* Save existing selection so we can reestablish it if the guy extends past the other end of the selection */ screen->saveStartR = screen->startExt = screen->startRaw; screen->saveEndR = screen->endExt = screen->endRaw; } else { /* He just needed the selection mode changed, use old values. */ screen->startExt = screen->startRaw = screen->saveStartR; screen->endExt = screen->endRaw = screen->saveEndR; } if (use_cursor_loc) { cell = screen->cursorp; } else { PointToCELL(screen, event->xbutton.y, event->xbutton.x, &cell); } coord = Coordinate(screen, &cell); if (Abs(coord - Coordinate(screen, &(screen->startSel))) < Abs(coord - Coordinate(screen, &(screen->endSel))) || coord < Coordinate(screen, &(screen->startSel))) { /* point is close to left side of selection */ screen->eventMode = LEFTEXTENSION; screen->startExt = cell; } else { /* point is close to left side of selection */ screen->eventMode = RIGHTEXTENSION; screen->endExt = cell; } ComputeSelect(xw, &(screen->startExt), &(screen->endExt), True); #if OPT_READLINE if (!isSameCELL(&(screen->startSel), &(screen->endSel))) ExtendingSelection = 1; #endif } static void ExtendExtend(XtermWidget xw, const CELL *cell) { TScreen *screen = TScreenOf(xw); int coord = Coordinate(screen, cell); TRACE(("ExtendExtend row=%d, col=%d\n", cell->row, cell->col)); if (screen->eventMode == LEFTEXTENSION && ((coord + (screen->selectUnit != Select_CHAR)) > Coordinate(screen, &(screen->endSel)))) { /* Whoops, he's changed his mind. Do RIGHTEXTENSION */ screen->eventMode = RIGHTEXTENSION; screen->startExt = screen->saveStartR; } else if (screen->eventMode == RIGHTEXTENSION && coord < Coordinate(screen, &(screen->startSel))) { /* Whoops, he's changed his mind. Do LEFTEXTENSION */ screen->eventMode = LEFTEXTENSION; screen->endExt = screen->saveEndR; } if (screen->eventMode == LEFTEXTENSION) { screen->startExt = *cell; } else { screen->endExt = *cell; } ComputeSelect(xw, &(screen->startExt), &(screen->endExt), False); #if OPT_READLINE if (!isSameCELL(&(screen->startSel), &(screen->endSel))) ExtendingSelection = 1; #endif } void HandleStartExtend(Widget w, XEvent *event, /* must be XButtonEvent* */ String *params, /* unused */ Cardinal *num_params) /* unused */ { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleStartExtend\n")); do_start_extend(xw, event, params, num_params, False); } } void HandleKeyboardStartExtend(Widget w, XEvent *event, /* must be XButtonEvent* */ String *params, /* unused */ Cardinal *num_params) /* unused */ { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleKeyboardStartExtend\n")); do_start_extend(xw, event, params, num_params, True); } } void ScrollSelection(TScreen *screen, int amount, Bool always) { int minrow = INX2ROW(screen, -screen->savedlines); int maxrow = INX2ROW(screen, screen->max_row); int maxcol = screen->max_col; #define scroll_update_one(cell) \ (cell)->row += amount; \ if ((cell)->row < minrow) { \ (cell)->row = minrow; \ (cell)->col = 0; \ } \ if ((cell)->row > maxrow) { \ (cell)->row = maxrow; \ (cell)->col = maxcol; \ } scroll_update_one(&(screen->startRaw)); scroll_update_one(&(screen->endRaw)); scroll_update_one(&(screen->startSel)); scroll_update_one(&(screen->endSel)); scroll_update_one(&(screen->rawPos)); /* * If we are told to scroll the selection but it lies outside the scrolling * margins, then that could cause the selection to move (bad). It is not * simple to fix, because this function is called both for the scrollbar * actions as well as application scrolling. The 'always' flag is set in * the former case. The rest of the logic handles the latter. */ if (ScrnHaveSelection(screen)) { int adjust; adjust = ROW2INX(screen, screen->startH.row); if (always || !ScrnHaveRowMargins(screen) || ScrnIsRowInMargins(screen, adjust)) { scroll_update_one(&screen->startH); } adjust = ROW2INX(screen, screen->endH.row); if (always || !ScrnHaveRowMargins(screen) || ScrnIsRowInMargins(screen, adjust)) { scroll_update_one(&screen->endH); } } screen->startHCoord = Coordinate(screen, &screen->startH); screen->endHCoord = Coordinate(screen, &screen->endH); } /*ARGSUSED*/ void ResizeSelection(TScreen *screen GCC_UNUSED, int rows, int cols) { rows--; /* decr to get 0-max */ cols--; if (screen->startRaw.row > rows) screen->startRaw.row = rows; if (screen->startSel.row > rows) screen->startSel.row = rows; if (screen->endRaw.row > rows) screen->endRaw.row = rows; if (screen->endSel.row > rows) screen->endSel.row = rows; if (screen->rawPos.row > rows) screen->rawPos.row = rows; if (screen->startRaw.col > cols) screen->startRaw.col = cols; if (screen->startSel.col > cols) screen->startSel.col = cols; if (screen->endRaw.col > cols) screen->endRaw.col = cols; if (screen->endSel.col > cols) screen->endSel.col = cols; if (screen->rawPos.col > cols) screen->rawPos.col = cols; } #if OPT_WIDE_CHARS Bool iswide(int i) { return (i == HIDDEN_CHAR) || (WideCells(i) == 2); } #define isWideCell(row, col) iswide((int)XTERM_CELL(row, col)) #endif static void PointToCELL(TScreen *screen, int y, int x, CELL *cell) /* Convert pixel coordinates to character coordinates. Rows are clipped between firstValidRow and lastValidRow. Columns are clipped between to be 0 or greater, but are not clipped to some maximum value. */ { cell->row = (y - screen->border) / FontHeight(screen); if (cell->row < screen->firstValidRow) cell->row = screen->firstValidRow; else if (cell->row > screen->lastValidRow) cell->row = screen->lastValidRow; cell->col = (x - OriginX(screen)) / FontWidth(screen); if (cell->col < 0) cell->col = 0; else if (cell->col > MaxCols(screen)) { cell->col = MaxCols(screen); } #if OPT_WIDE_CHARS /* * If we got a click on the right half of a doublewidth character, * pretend it happened on the left half. */ if (cell->col > 0 && isWideCell(cell->row, cell->col - 1) && (XTERM_CELL(cell->row, cell->col) == HIDDEN_CHAR)) { cell->col -= 1; } #endif } /* * Find the last column at which text was drawn on the given row. */ static int LastTextCol(TScreen *screen, CLineData *ld, int row) { int i = -1; if (ld != 0) { if (okScrnRow(screen, row)) { const IAttr *ch; for (i = screen->max_col, ch = ld->attribs + i; i >= 0 && !(*ch & CHARDRAWN); ch--, i--) { ; } #if OPT_DEC_CHRSET if (CSET_DOUBLE(GetLineDblCS(ld))) { i *= 2; } #endif } } return (i); } #if !OPT_WIDE_CHARS /* ** double click table for cut and paste in 8 bits ** ** This table is divided in four parts : ** ** - control characters [0,0x1f] U [0x80,0x9f] ** - separators [0x20,0x3f] U [0xa0,0xb9] ** - binding characters [0x40,0x7f] U [0xc0,0xff] ** - exceptions */ /* *INDENT-OFF* */ static int charClass[256] = { /* NUL SOH STX ETX EOT ENQ ACK BEL */ 32, 1, 1, 1, 1, 1, 1, 1, /* BS HT NL VT FF CR SO SI */ 1, 32, 1, 1, 1, 1, 1, 1, /* DLE DC1 DC2 DC3 DC4 NAK SYN ETB */ 1, 1, 1, 1, 1, 1, 1, 1, /* CAN EM SUB ESC FS GS RS US */ 1, 1, 1, 1, 1, 1, 1, 1, /* SP ! " # $ % & ' */ 32, 33, 34, 35, 36, 37, 38, 39, /* ( ) * + , - . / */ 40, 41, 42, 43, 44, 45, 46, 47, /* 0 1 2 3 4 5 6 7 */ 48, 48, 48, 48, 48, 48, 48, 48, /* 8 9 : ; < = > ? */ 48, 48, 58, 59, 60, 61, 62, 63, /* @ A B C D E F G */ 64, 48, 48, 48, 48, 48, 48, 48, /* H I J K L M N O */ 48, 48, 48, 48, 48, 48, 48, 48, /* P Q R S T U V W */ 48, 48, 48, 48, 48, 48, 48, 48, /* X Y Z [ \ ] ^ _ */ 48, 48, 48, 91, 92, 93, 94, 48, /* ` a b c d e f g */ 96, 48, 48, 48, 48, 48, 48, 48, /* h i j k l m n o */ 48, 48, 48, 48, 48, 48, 48, 48, /* p q r s t u v w */ 48, 48, 48, 48, 48, 48, 48, 48, /* x y z { | } ~ DEL */ 48, 48, 48, 123, 124, 125, 126, 1, /* x80 x81 x82 x83 IND NEL SSA ESA */ 1, 1, 1, 1, 1, 1, 1, 1, /* HTS HTJ VTS PLD PLU RI SS2 SS3 */ 1, 1, 1, 1, 1, 1, 1, 1, /* DCS PU1 PU2 STS CCH MW SPA EPA */ 1, 1, 1, 1, 1, 1, 1, 1, /* x98 x99 x9A CSI ST OSC PM APC */ 1, 1, 1, 1, 1, 1, 1, 1, /* - i c/ L ox Y- | So */ 160, 161, 162, 163, 164, 165, 166, 167, /* .. c0 ip << _ R0 - */ 168, 169, 170, 171, 172, 173, 174, 175, /* o +- 2 3 ' u q| . */ 176, 177, 178, 179, 180, 181, 182, 183, /* , 1 2 >> 1/4 1/2 3/4 ? */ 184, 185, 186, 187, 188, 189, 190, 191, /* A` A' A^ A~ A: Ao AE C, */ 48, 48, 48, 48, 48, 48, 48, 48, /* E` E' E^ E: I` I' I^ I: */ 48, 48, 48, 48, 48, 48, 48, 48, /* D- N~ O` O' O^ O~ O: X */ 48, 48, 48, 48, 48, 48, 48, 215, /* O/ U` U' U^ U: Y' P B */ 48, 48, 48, 48, 48, 48, 48, 48, /* a` a' a^ a~ a: ao ae c, */ 48, 48, 48, 48, 48, 48, 48, 48, /* e` e' e^ e: i` i' i^ i: */ 48, 48, 48, 48, 48, 48, 48, 48, /* d n~ o` o' o^ o~ o: -: */ 48, 48, 48, 48, 48, 48, 48, 247, /* o/ u` u' u^ u: y' P y: */ 48, 48, 48, 48, 48, 48, 48, 48}; /* *INDENT-ON* */ int SetCharacterClassRange(int low, /* in range of [0..255] */ int high, int value) /* arbitrary */ { if (low < 0 || high > 255 || high < low) return (-1); for (; low <= high; low++) charClass[low] = value; return (0); } #endif static int class_of(LineData *ld, CELL *cell) { CELL temp = *cell; int result = 0; #if OPT_DEC_CHRSET if (CSET_DOUBLE(GetLineDblCS(ld))) { temp.col /= 2; } #endif if (temp.col < (int) ld->lineSize) result = CharacterClass((int) (ld->charData[temp.col])); return result; } #if OPT_WIDE_CHARS #define CClassSelects(name, cclass) \ (CClassOf(name) == cclass \ || XTERM_CELL(screen->name.row, screen->name.col) == HIDDEN_CHAR) #else #define CClassSelects(name, cclass) \ (class_of(ld.name, &((screen->name))) == cclass) #endif #define CClassOf(name) class_of(ld.name, &((screen->name))) #if OPT_REPORT_CCLASS static int show_cclass_range(int lo, int hi) { int cclass = CharacterClass(lo); int ident = (cclass == lo); int more = 0; if (ident) { int ch; for (ch = lo + 1; ch <= hi; ch++) { if (CharacterClass(ch) != ch) { ident = 0; break; } } if (ident && (hi < 255)) { ch = hi + 1; if (CharacterClass(ch) == ch) { if (ch >= 255 || CharacterClass(ch + 1) != ch) { more = 1; } } } } if (!more) { if (lo == hi) { printf("\t%d", lo); } else { printf("\t%d-%d", lo, hi); } if (!ident) printf(":%d", cclass); if (hi < 255) printf(", \\"); printf("\n"); } return !more; } void report_char_class(XtermWidget xw) { /* simple table, to match documentation */ static const char charnames[] = "NUL\0" "SOH\0" "STX\0" "ETX\0" "EOT\0" "ENQ\0" "ACK\0" "BEL\0" " BS\0" " HT\0" " NL\0" " VT\0" " NP\0" " CR\0" " SO\0" " SI\0" "DLE\0" "DC1\0" "DC2\0" "DC3\0" "DC4\0" "NAK\0" "SYN\0" "ETB\0" "CAN\0" " EM\0" "SUB\0" "ESC\0" " FS\0" " GS\0" " RS\0" " US\0" " SP\0" " !\0" " \"\0" " #\0" " $\0" " %\0" " &\0" " '\0" " (\0" " )\0" " *\0" " +\0" " ,\0" " -\0" " .\0" " /\0" " 0\0" " 1\0" " 2\0" " 3\0" " 4\0" " 5\0" " 6\0" " 7\0" " 8\0" " 9\0" " :\0" " ;\0" " <\0" " =\0" " >\0" " ?\0" " @\0" " A\0" " B\0" " C\0" " D\0" " E\0" " F\0" " G\0" " H\0" " I\0" " J\0" " K\0" " L\0" " M\0" " N\0" " O\0" " P\0" " Q\0" " R\0" " S\0" " T\0" " U\0" " V\0" " W\0" " X\0" " Y\0" " Z\0" " [\0" " \\\0" " ]\0" " ^\0" " _\0" " `\0" " a\0" " b\0" " c\0" " d\0" " e\0" " f\0" " g\0" " h\0" " i\0" " j\0" " k\0" " l\0" " m\0" " n\0" " o\0" " p\0" " q\0" " r\0" " s\0" " t\0" " u\0" " v\0" " w\0" " x\0" " y\0" " z\0" " {\0" " |\0" " }\0" " ~\0" "DEL\0" "x80\0" "x81\0" "x82\0" "x83\0" "IND\0" "NEL\0" "SSA\0" "ESA\0" "HTS\0" "HTJ\0" "VTS\0" "PLD\0" "PLU\0" " RI\0" "SS2\0" "SS3\0" "DCS\0" "PU1\0" "PU2\0" "STS\0" "CCH\0" " MW\0" "SPA\0" "EPA\0" "x98\0" "x99\0" "x9A\0" "CSI\0" " ST\0" "OSC\0" " PM\0" "APC\0" " -\0" " i\0" " c/\0" " L\0" " ox\0" " Y-\0" " |\0" " So\0" " ..\0" " c0\0" " ip\0" " <<\0" " _\0" " \0" " R0\0" " -\0" " o\0" " +-\0" " 2\0" " 3\0" " '\0" " u\0" " q|\0" " .\0" " ,\0" " 1\0" " 2\0" " >>\0" "1/4\0" "1/2\0" "3/4\0" " ?\0" " A`\0" " A'\0" " A^\0" " A~\0" " A:\0" " Ao\0" " AE\0" " C,\0" " E`\0" " E'\0" " E^\0" " E:\0" " I`\0" " I'\0" " I^\0" " I:\0" " D-\0" " N~\0" " O`\0" " O'\0" " O^\0" " O~\0" " O:\0" " X\0" " O/\0" " U`\0" " U'\0" " U^\0" " U:\0" " Y'\0" " P\0" " B\0" " a`\0" " a'\0" " a^\0" " a~\0" " a:\0" " ao\0" " ae\0" " c,\0" " e`\0" " e'\0" " e^\0" " e:\0" " i`\0" " i'\0" " i^\0" " i:\0" " d\0" " n~\0" " o`\0" " o'\0" " o^\0" " o~\0" " o:\0" " -:\0" " o/\0" " u`\0" " u'\0" " u^\0" " u:\0" " y'\0" " P\0" " y:\0"; int ch, dh; int class_p; (void) xw; printf("static int charClass[256] = {\n"); for (ch = 0; ch < 256; ++ch) { const char *s = charnames + (ch * 4); if ((ch & 7) == 0) printf("/*"); printf(" %s ", s); if (((ch + 1) & 7) == 0) { printf("*/\n "); for (dh = ch - 7; dh <= ch; ++dh) { printf(" %3d%s", CharacterClass(dh), dh == 255 ? "};" : ","); } printf("\n"); } } /* print the table as if it were the charClass resource */ printf("\n"); printf("The table is equivalent to this \"charClass\" resource:\n"); class_p = CharacterClass(dh = 0); for (ch = 0; ch < 256; ++ch) { int class_c = CharacterClass(ch); if (class_c != class_p) { if (show_cclass_range(dh, ch - 1)) { dh = ch; class_p = class_c; } } } if (dh < 255) { show_cclass_range(dh, 255); } if_OPT_WIDE_CHARS(TScreenOf(xw), { /* if this is a wide-character configuration, print all intervals */ report_wide_char_class(); }); } #endif /* * If the given column is past the end of text on the given row, bump to the * beginning of the next line. */ static Boolean okPosition(TScreen *screen, LineData **ld, CELL *cell) { Boolean result = True; if (cell->row > screen->max_row) { result = False; } else if (cell->col > (LastTextCol(screen, *ld, cell->row) + 1)) { if (cell->row < screen->max_row) { cell->col = 0; *ld = GET_LINEDATA(screen, ++cell->row); result = False; } } return result; } static void trimLastLine(TScreen *screen, LineData **ld, CELL *last) { if (screen->cutNewline && last->row < screen->max_row) { last->col = 0; *ld = GET_LINEDATA(screen, ++last->row); } else { last->col = LastTextCol(screen, *ld, last->row) + 1; } } #if OPT_SELECT_REGEX /* * Returns the first row of a wrapped line. */ static int firstRowOfLine(TScreen *screen, int row, Bool visible) { LineData *ld = 0; int limit = visible ? 0 : -screen->savedlines; while (row > limit && (ld = GET_LINEDATA(screen, row - 1)) != 0 && LineTstWrapped(ld)) { --row; } return row; } /* * Returns the last row of a wrapped line. */ static int lastRowOfLine(TScreen *screen, int row) { LineData *ld; while (row < screen->max_row && (ld = GET_LINEDATA(screen, row)) != 0 && LineTstWrapped(ld)) { ++row; } return row; } /* * Returns the number of cells on the range of rows. */ static unsigned lengthOfLines(TScreen *screen, int firstRow, int lastRow) { unsigned length = 0; int n; for (n = firstRow; n <= lastRow; ++n) { LineData *ld = GET_LINEDATA(screen, n); int value = LastTextCol(screen, ld, n); if (value >= 0) length += (unsigned) (value + 1); } return length; } /* * Make a copy of the wrapped-line which corresponds to the given row as a * string of bytes. Construct an index for the columns from the beginning of * the line. */ static char * make_indexed_text(TScreen *screen, int row, unsigned length, int *indexed) { Char *result = 0; size_t need = (length + 1); /* * Get a quick upper bound to the number of bytes needed, if the whole * string were UTF-8. */ if_OPT_WIDE_CHARS(screen, { need *= ((screen->lineExtra + 1) * 6); }); if ((result = TypeCallocN(Char, need + 1)) != 0) { LineData *ld = GET_LINEDATA(screen, row); unsigned used = 0; Char *last = result; do { int col = 0; int limit = LastTextCol(screen, ld, row); while (col <= limit) { Char *next = last; unsigned data = ld->charData[col]; assert(col < (int) ld->lineSize); /* some internal points may not be drawn */ if (data == 0) data = ' '; if_WIDE_OR_NARROW(screen, { next = convertToUTF8(last, data); } , { *next++ = CharOf(data); }); if_OPT_WIDE_CHARS(screen, { size_t off; for_each_combData(off, ld) { data = ld->combData[off][col]; if (data == 0) break; next = convertToUTF8(next, data); } }); indexed[used] = (int) (last - result); *next = 0; /* TRACE(("index[%d.%d] %d:%s\n", row, used, indexed[used], last)); */ last = next; ++used; ++col; indexed[used] = (int) (next - result); } } while (used < length && LineTstWrapped(ld) && (ld = GET_LINEDATA(screen, ++row)) != 0 && row < screen->max_row); } /* TRACE(("result:%s\n", result)); */ return (char *) result; } /* * Find the column given an offset into the character string by using the * index constructed in make_indexed_text(). */ static int indexToCol(int *indexed, int len, int off) { int col = 0; while (indexed[col] < len) { if (indexed[col] >= off) break; ++col; } return col; } /* * Given a row number, and a column offset from that (which may be wrapped), * set the cell to the actual row/column values. */ static void columnToCell(TScreen *screen, int row, int col, CELL *cell) { while (row < screen->max_row) { CLineData *ld = GET_LINEDATA(screen, row); int last = LastTextCol(screen, ld, row); /* TRACE(("last(%d) = %d, have %d\n", row, last, col)); */ if (col <= last) { break; } /* * Stop if the current row does not wrap (does not continue the current * line). */ if (!LineTstWrapped(ld)) { col = last + 1; break; } col -= (last + 1); ++row; } if (col < 0) col = 0; cell->row = row; cell->col = col; } /* * Given a cell, find the corresponding column offset. */ static int cellToColumn(TScreen *screen, CELL *cell) { CLineData *ld = 0; int col = cell->col; int row = firstRowOfLine(screen, cell->row, False); while (row < cell->row) { ld = GET_LINEDATA(screen, row); col += LastTextCol(screen, ld, row++); } #if OPT_DEC_CHRSET if (ld == 0) ld = GET_LINEDATA(screen, row); if (CSET_DOUBLE(GetLineDblCS(ld))) col /= 2; #endif return col; } static void do_select_regex(TScreen *screen, CELL *startc, CELL *endc) { LineData *ld = GET_LINEDATA(screen, startc->row); int inx = ((screen->numberOfClicks - 1) % screen->maxClicks); char *expr = screen->selectExpr[inx]; regex_t preg; regmatch_t match; TRACE(("Select_REGEX[%d]:%s\n", inx, NonNull(expr))); if (okPosition(screen, &ld, startc) && expr != 0) { if (regcomp(&preg, expr, REG_EXTENDED) == 0) { int firstRow = firstRowOfLine(screen, startc->row, True); int lastRow = lastRowOfLine(screen, firstRow); unsigned size = lengthOfLines(screen, firstRow, lastRow); int actual = cellToColumn(screen, startc); int *indexed; TRACE(("regcomp ok rows %d..%d bytes %d\n", firstRow, lastRow, size)); if ((indexed = TypeCallocN(int, size + 1)) != 0) { char *search; if ((search = make_indexed_text(screen, firstRow, size, indexed)) != 0) { int len = (int) strlen(search); int col; int best_col = -1; int best_len = -1; startc->row = 0; startc->col = 0; endc->row = 0; endc->col = 0; for (col = 0; indexed[col] < len; ++col) { if (regexec(&preg, search + indexed[col], (size_t) 1, &match, 0) == 0) { int start_inx = (int) (match.rm_so + indexed[col]); int finis_inx = (int) (match.rm_eo + indexed[col]); int start_col = indexToCol(indexed, len, start_inx); int finis_col = indexToCol(indexed, len, finis_inx); if (start_col <= actual && actual <= finis_col) { int test = finis_col - start_col; if (best_len < test) { best_len = test; best_col = start_col; TRACE(("match column %d len %d\n", best_col, best_len)); } } } } if (best_col >= 0) { int best_nxt = best_col + best_len; columnToCell(screen, firstRow, best_col, startc); columnToCell(screen, firstRow, best_nxt, endc); TRACE(("search::%s\n", search)); TRACE(("indexed:%d..%d -> %d..%d\n", best_col, best_nxt, indexed[best_col], indexed[best_nxt])); TRACE(("matched:%d:%s\n", indexed[best_nxt] + 1 - indexed[best_col], visibleChars((Char *) (search + indexed[best_col]), (unsigned) (indexed[best_nxt] + 1 - indexed[best_col])))); } free(search); } free(indexed); #if OPT_DEC_CHRSET if ((ld = GET_LINEDATA(screen, startc->row)) != 0) { if (CSET_DOUBLE(GetLineDblCS(ld))) startc->col *= 2; } if ((ld = GET_LINEDATA(screen, endc->row)) != 0) { if (CSET_DOUBLE(GetLineDblCS(ld))) endc->col *= 2; } #endif } regfree(&preg); } } } #endif /* OPT_SELECT_REGEX */ #define InitRow(name) \ ld.name = GET_LINEDATA(screen, screen->name.row) #define NextRow(name) \ ld.name = GET_LINEDATA(screen, ++screen->name.row) #define PrevRow(name) \ ld.name = GET_LINEDATA(screen, --screen->name.row) #define MoreRows(name) \ (screen->name.row < screen->max_row) #define isPrevWrapped(name) \ (screen->name.row > 0 \ && (ltmp = GET_LINEDATA(screen, screen->name.row - 1)) != 0 \ && LineTstWrapped(ltmp)) /* * sets startSel endSel * ensuring that they have legal values */ static void ComputeSelect(XtermWidget xw, CELL *startc, CELL *endc, Bool extend) { TScreen *screen = TScreenOf(xw); int cclass; CELL first = *startc; CELL last = *endc; Boolean ignored = False; struct { LineData *startSel; LineData *endSel; } ld; LineData *ltmp; TRACE(("ComputeSelect(startRow=%d, startCol=%d, endRow=%d, endCol=%d, %sextend)\n", first.row, first.col, last.row, last.col, extend ? "" : "no")); #if OPT_WIDE_CHARS if (first.col > 1 && isWideCell(first.row, first.col - 1) && XTERM_CELL(first.row, first.col - 0) == HIDDEN_CHAR) { TRACE(("Adjusting start. Changing downwards from %i.\n", first.col)); first.col -= 1; if (last.col == (first.col + 1)) last.col--; } if (last.col > 1 && isWideCell(last.row, last.col - 1) && XTERM_CELL(last.row, last.col) == HIDDEN_CHAR) { last.col += 1; } #endif if (Coordinate(screen, &first) <= Coordinate(screen, &last)) { screen->startSel = screen->startRaw = first; screen->endSel = screen->endRaw = last; } else { /* Swap them */ screen->startSel = screen->startRaw = last; screen->endSel = screen->endRaw = first; } InitRow(startSel); InitRow(endSel); switch (screen->selectUnit) { case Select_CHAR: (void) okPosition(screen, &(ld.startSel), &(screen->startSel)); (void) okPosition(screen, &(ld.endSel), &(screen->endSel)); break; case Select_WORD: TRACE(("Select_WORD\n")); if (okPosition(screen, &(ld.startSel), &(screen->startSel))) { cclass = CClassOf(startSel); do { --screen->startSel.col; if (screen->startSel.col < 0 && isPrevWrapped(startSel)) { PrevRow(startSel); screen->startSel.col = LastTextCol(screen, ld.startSel, screen->startSel.row); } } while (screen->startSel.col >= 0 && CClassSelects(startSel, cclass)); ++screen->startSel.col; } #if OPT_WIDE_CHARS if (screen->startSel.col && XTERM_CELL(screen->startSel.row, screen->startSel.col) == HIDDEN_CHAR) screen->startSel.col++; #endif if (okPosition(screen, &(ld.endSel), &(screen->endSel))) { int length = LastTextCol(screen, ld.endSel, screen->endSel.row); cclass = CClassOf(endSel); do { ++screen->endSel.col; if (screen->endSel.col > length && LineTstWrapped(ld.endSel)) { if (!MoreRows(endSel)) break; screen->endSel.col = 0; NextRow(endSel); length = LastTextCol(screen, ld.endSel, screen->endSel.row); } } while (screen->endSel.col <= length && CClassSelects(endSel, cclass)); /* Word-select selects if pointing to any char in "word", * especially note that it includes the last character in a word. * So we do no --endSel.col and do special eol handling. */ if (screen->endSel.col > length + 1 && MoreRows(endSel)) { screen->endSel.col = 0; NextRow(endSel); } } #if OPT_WIDE_CHARS if (screen->endSel.col && XTERM_CELL(screen->endSel.row, screen->endSel.col) == HIDDEN_CHAR) screen->endSel.col++; #endif screen->saveStartW = screen->startSel; break; case Select_LINE: TRACE(("Select_LINE\n")); while (LineTstWrapped(ld.endSel) && MoreRows(endSel)) { NextRow(endSel); } if (screen->cutToBeginningOfLine || screen->startSel.row < screen->saveStartW.row) { screen->startSel.col = 0; while (isPrevWrapped(startSel)) { PrevRow(startSel); } } else if (!extend) { if ((first.row < screen->saveStartW.row) || (isSameRow(&first, &(screen->saveStartW)) && first.col < screen->saveStartW.col)) { screen->startSel.col = 0; while (isPrevWrapped(startSel)) { PrevRow(startSel); } } else { screen->startSel = screen->saveStartW; } } trimLastLine(screen, &(ld.endSel), &(screen->endSel)); break; case Select_GROUP: /* paragraph */ TRACE(("Select_GROUP\n")); if (okPosition(screen, &(ld.startSel), &(screen->startSel))) { /* scan backward for beginning of group */ while (screen->startSel.row > 0 && (LastTextCol(screen, ld.startSel, screen->startSel.row - 1) > 0 || isPrevWrapped(startSel))) { PrevRow(startSel); } screen->startSel.col = 0; /* scan forward for end of group */ while (MoreRows(endSel) && (LastTextCol(screen, ld.endSel, screen->endSel.row + 1) > 0 || LineTstWrapped(ld.endSel))) { NextRow(endSel); } trimLastLine(screen, &(ld.endSel), &(screen->endSel)); } break; case Select_PAGE: /* everything one can see */ TRACE(("Select_PAGE\n")); screen->startSel.row = 0; screen->startSel.col = 0; screen->endSel.row = MaxRows(screen); screen->endSel.col = 0; break; case Select_ALL: /* counts scrollback if in normal screen */ TRACE(("Select_ALL\n")); screen->startSel.row = -screen->savedlines; screen->startSel.col = 0; screen->endSel.row = MaxRows(screen); screen->endSel.col = 0; break; #if OPT_SELECT_REGEX case Select_REGEX: do_select_regex(screen, &(screen->startSel), &(screen->endSel)); break; #endif case NSELECTUNITS: /* always ignore */ ignored = True; break; } if (!ignored) { /* check boundaries */ ScrollSelection(screen, 0, False); TrackText(xw, &(screen->startSel), &(screen->endSel)); } return; } /* Guaranteed (first.row, first.col) <= (last.row, last.col) */ static void TrackText(XtermWidget xw, const CELL *firstp, const CELL *lastp) { TScreen *screen = TScreenOf(xw); int from, to; CELL old_start, old_end; CELL first = *firstp; CELL last = *lastp; TRACE(("TrackText(first=%d,%d, last=%d,%d)\n", first.row, first.col, last.row, last.col)); old_start = screen->startH; old_end = screen->endH; TRACE(("...previous(first=%d,%d, last=%d,%d)\n", old_start.row, old_start.col, old_end.row, old_end.col)); if (isSameCELL(&first, &old_start) && isSameCELL(&last, &old_end)) { return; } screen->startH = first; screen->endH = last; from = Coordinate(screen, &screen->startH); to = Coordinate(screen, &screen->endH); if (to <= screen->startHCoord || from > screen->endHCoord) { /* No overlap whatsoever between old and new hilite */ ReHiliteText(xw, &old_start, &old_end); ReHiliteText(xw, &first, &last); } else { if (from < screen->startHCoord) { /* Extend left end */ ReHiliteText(xw, &first, &old_start); } else if (from > screen->startHCoord) { /* Shorten left end */ ReHiliteText(xw, &old_start, &first); } if (to > screen->endHCoord) { /* Extend right end */ ReHiliteText(xw, &old_end, &last); } else if (to < screen->endHCoord) { /* Shorten right end */ ReHiliteText(xw, &last, &old_end); } } screen->startHCoord = from; screen->endHCoord = to; } /* Guaranteed that (first->row, first->col) <= (last->row, last->col) */ static void ReHiliteText(XtermWidget xw, CELL *firstp, CELL *lastp) { TScreen *screen = TScreenOf(xw); CELL first = *firstp; CELL last = *lastp; TRACE(("ReHiliteText from %d.%d to %d.%d\n", first.row, first.col, last.row, last.col)); if (first.row < 0) first.row = first.col = 0; else if (first.row > screen->max_row) return; /* nothing to do, since last.row >= first.row */ if (last.row < 0) return; /* nothing to do, since first.row <= last.row */ else if (last.row > screen->max_row) { last.row = screen->max_row; last.col = MaxCols(screen); } if (isSameCELL(&first, &last)) return; if (!isSameRow(&first, &last)) { /* do multiple rows */ int i; if ((i = screen->max_col - first.col + 1) > 0) { /* first row */ ScrnRefresh(xw, first.row, first.col, 1, i, True); } if ((i = last.row - first.row - 1) > 0) { /* middle rows */ ScrnRefresh(xw, first.row + 1, 0, i, MaxCols(screen), True); } if (last.col > 0 && last.row <= screen->max_row) { /* last row */ ScrnRefresh(xw, last.row, 0, 1, last.col, True); } } else { /* do single row */ ScrnRefresh(xw, first.row, first.col, 1, last.col - first.col, True); } } /* * Guaranteed that (cellc->row, cellc->col) <= (cell->row, cell->col), * and that both points are valid * (may have cell->row = screen->max_row+1, cell->col = 0). */ static void SaltTextAway(XtermWidget xw, CELL *cellc, CELL *cell) { TScreen *screen = TScreenOf(xw); int i, j = 0; int eol; Char *line; Char *lp; CELL first = *cellc; CELL last = *cell; if (isSameRow(&first, &last) && first.col > last.col) { int tmp; EXCHANGE(first.col, last.col, tmp); } --last.col; /* first we need to know how long the string is before we can save it */ if (isSameRow(&last, &first)) { j = Length(screen, first.row, first.col, last.col); } else { /* two cases, cut is on same line, cut spans multiple lines */ j += Length(screen, first.row, first.col, screen->max_col) + 1; for (i = first.row + 1; i < last.row; i++) j += Length(screen, i, 0, screen->max_col) + 1; if (last.col >= 0) j += Length(screen, last.row, 0, last.col); } /* UTF-8 may require more space */ if_OPT_WIDE_CHARS(screen, { j *= 4; }); /* now get some memory to save it in */ if (screen->selection_size <= j) { if ((line = (Char *) malloc((size_t) j + 1)) == 0) SysError(ERROR_BMALLOC2); XtFree((char *) screen->selection_data); screen->selection_data = line; screen->selection_size = j + 1; } else { line = screen->selection_data; } if ((line == 0) || (j < 0)) return; line[j] = '\0'; /* make sure it is null terminated */ lp = line; /* lp points to where to save the text */ if (isSameRow(&last, &first)) { lp = SaveText(screen, last.row, first.col, last.col, lp, &eol); } else { lp = SaveText(screen, first.row, first.col, screen->max_col, lp, &eol); if (eol) *lp++ = '\n'; /* put in newline at end of line */ for (i = first.row + 1; i < last.row; i++) { lp = SaveText(screen, i, 0, screen->max_col, lp, &eol); if (eol) *lp++ = '\n'; } if (last.col >= 0) lp = SaveText(screen, last.row, 0, last.col, lp, &eol); } *lp = '\0'; /* make sure we have end marked */ TRACE(("Salted TEXT:%d:%s\n", (int) (lp - line), visibleChars(line, (unsigned) (lp - line)))); screen->selection_length = (unsigned long) (lp - line); } #if OPT_PASTE64 void ClearSelectionBuffer(TScreen *screen) { screen->selection_length = 0; screen->base64_count = 0; } static void AppendStrToSelectionBuffer(TScreen *screen, Char *text, size_t len) { if (len != 0) { int j = (int) (screen->selection_length + len); /* New length */ int k = j + (j >> 2) + 80; /* New size if we grow buffer: grow by ~50% */ if (j + 1 >= screen->selection_size) { if (!screen->selection_length) { /* New buffer */ Char *line; if ((line = (Char *) malloc((size_t) k)) == 0) SysError(ERROR_BMALLOC2); XtFree((char *) screen->selection_data); screen->selection_data = line; } else { /* Realloc buffer */ screen->selection_data = (Char *) realloc(screen->selection_data, (size_t) k); if (screen->selection_data == 0) SysError(ERROR_BMALLOC2); } screen->selection_size = k; } if (screen->selection_data != 0) { memcpy(screen->selection_data + screen->selection_length, text, len); screen->selection_length += len; screen->selection_data[screen->selection_length] = 0; } } } void AppendToSelectionBuffer(TScreen *screen, unsigned c) { unsigned six; Char ch; /* Decode base64 character */ if (c >= 'A' && c <= 'Z') six = c - 'A'; else if (c >= 'a' && c <= 'z') six = c - 'a' + 26; else if (c >= '0' && c <= '9') six = c - '0' + 52; else if (c == '+') six = 62; else if (c == '/') six = 63; else return; /* Accumulate bytes */ switch (screen->base64_count) { case 0: screen->base64_accu = six; screen->base64_count = 6; break; case 2: ch = CharOf((screen->base64_accu << 6) + six); screen->base64_count = 0; AppendStrToSelectionBuffer(screen, &ch, (size_t) 1); break; case 4: ch = CharOf((screen->base64_accu << 4) + (six >> 2)); screen->base64_accu = (six & 0x3); screen->base64_count = 2; AppendStrToSelectionBuffer(screen, &ch, (size_t) 1); break; case 6: ch = CharOf((screen->base64_accu << 2) + (six >> 4)); screen->base64_accu = (six & 0xF); screen->base64_count = 4; AppendStrToSelectionBuffer(screen, &ch, (size_t) 1); break; } } void CompleteSelection(XtermWidget xw, String *args, Cardinal len) { TScreen *screen = TScreenOf(xw); screen->base64_count = 0; screen->base64_accu = 0; _OwnSelection(xw, args, len); } #endif /* OPT_PASTE64 */ static Bool _ConvertSelectionHelper(Widget w, Atom *type, XtPointer *value, unsigned long *length, Char *data, unsigned long remaining, int *format, int (*conversion_function) (Display *, char **, int, XICCEncodingStyle, XTextProperty *), XICCEncodingStyle conversion_style) { XtermWidget xw; *value = 0; *length = 0; *type = 0; *format = 0; if ((xw = getXtermWidget(w)) != 0) { TScreen *screen = TScreenOf(xw); Display *dpy = XtDisplay(w); XTextProperty textprop; int out_n = 0; char *result = 0; char *the_data = (char *) data; char *the_next; TRACE(("converting %ld:'%s'\n", (long) screen->selection_length, visibleChars(screen->selection_data, (unsigned) screen->selection_length))); /* * For most selections, we can convert in one pass. It is possible * that some applications contain embedded nulls, e.g., using xterm's * paste64 feature. For those cases, we will build up the result in * parts. */ if (memchr(the_data, 0, screen->selection_length) != 0) { TRACE(("selection contains embedded nulls\n")); result = calloc(screen->selection_length + 1, sizeof(char)); } next_try: memset(&textprop, 0, sizeof(textprop)); if (conversion_function(dpy, &the_data, 1, conversion_style, &textprop) >= Success) { if ((result != 0) && (textprop.value != 0) && (textprop.format == 8)) { char *text_values = (char *) textprop.value; unsigned long in_n; if (out_n == 0) { *value = result; *type = textprop.encoding; *format = textprop.format; } for (in_n = 0; in_n < textprop.nitems; ++in_n) { result[out_n++] = text_values[in_n]; } *length += textprop.nitems; if ((the_next = memchr(the_data, 0, remaining)) != 0) { unsigned long this_was = (unsigned long) (the_next - the_data); this_was++; the_data += this_was; remaining -= this_was; result[out_n++] = 0; *length += 1; if (remaining) goto next_try; } return True; } else { free(result); *value = (XtPointer) textprop.value; *length = textprop.nitems; *type = textprop.encoding; *format = textprop.format; return True; } } free(result); } return False; } static Boolean SaveConvertedLength(XtPointer *target, unsigned long source) { Boolean result = False; *target = XtMalloc(4); if (*target != 0) { result = True; if (sizeof(unsigned long) == 4) { *(unsigned long *) *target = source; } else if (sizeof(unsigned) == 4) { *(unsigned *) *target = (unsigned) source; } else if (sizeof(unsigned short) == 4) { *(unsigned short *) *target = (unsigned short) source; } else { /* FIXME - does this depend on byte-order? */ unsigned long temp = source; memcpy((char *) *target, ((char *) &temp) + sizeof(temp) - 4, (size_t) 4); } } return result; } #define keepClipboard(atom) ((screen->keepClipboard) && \ (atom == XInternAtom(screen->display, "CLIPBOARD", False))) static Boolean ConvertSelection(Widget w, Atom *selection, Atom *target, Atom *type, XtPointer *value, unsigned long *length, int *format) { Display *dpy = XtDisplay(w); TScreen *screen; Bool result = False; Char *data; unsigned long data_length; XtermWidget xw; if ((xw = getXtermWidget(w)) == 0) return False; screen = TScreenOf(xw); TRACE(("ConvertSelection %s\n", visibleSelectionTarget(dpy, *target))); if (keepClipboard(*selection)) { TRACE(("asked for clipboard\n")); data = screen->clipboard_data; data_length = screen->clipboard_size; } else { TRACE(("asked for selection\n")); data = screen->selection_data; data_length = screen->selection_length; } if (data == NULL) { TRACE(("...FIXME: no selection_data\n")); return False; /* can this happen? */ } if (*target == XA_TARGETS(dpy)) { Atom *targetP; XPointer std_return = 0; unsigned long std_length; if (XmuConvertStandardSelection(w, screen->selection_time, selection, target, type, &std_return, &std_length, format)) { Atom *my_targets = _SelectionTargets(w); Atom *allocP; Atom *std_targets; TRACE(("XmuConvertStandardSelection - success\n")); std_targets = (Atom *) (void *) (std_return); *length = std_length + 6; targetP = TypeXtMallocN(Atom, *length); allocP = targetP; *value = (XtPointer) targetP; if (my_targets != 0) { while (*my_targets != None) { *targetP++ = *my_targets++; } } *targetP++ = XA_LENGTH(dpy); *targetP++ = XA_LIST_LENGTH(dpy); *length = std_length + (unsigned long) (targetP - allocP); memcpy(targetP, std_targets, sizeof(Atom) * std_length); XtFree((char *) std_targets); *type = XA_ATOM; *format = 32; result = True; } else { TRACE(("XmuConvertStandardSelection - failed\n")); } } #if OPT_WIDE_CHARS else if (screen->wide_chars && *target == XA_STRING) { result = _ConvertSelectionHelper(w, type, value, length, data, data_length, format, Xutf8TextListToTextProperty, XStringStyle); TRACE(("...Xutf8TextListToTextProperty:%d\n", result)); } else if (screen->wide_chars && *target == XA_UTF8_STRING(dpy)) { result = _ConvertSelectionHelper(w, type, value, length, data, data_length, format, Xutf8TextListToTextProperty, XUTF8StringStyle); TRACE(("...Xutf8TextListToTextProperty:%d\n", result)); } else if (screen->wide_chars && *target == XA_TEXT(dpy)) { result = _ConvertSelectionHelper(w, type, value, length, data, data_length, format, Xutf8TextListToTextProperty, XStdICCTextStyle); TRACE(("...Xutf8TextListToTextProperty:%d\n", result)); } else if (screen->wide_chars && *target == XA_COMPOUND_TEXT(dpy)) { result = _ConvertSelectionHelper(w, type, value, length, data, data_length, format, Xutf8TextListToTextProperty, XCompoundTextStyle); TRACE(("...Xutf8TextListToTextProperty:%d\n", result)); } #endif else if (*target == XA_STRING) { /* not wide_chars */ /* We can only reach this point if the selection requestor requested STRING before any of TEXT, COMPOUND_TEXT or UTF8_STRING. We therefore assume that the requestor is not properly internationalised, and dump raw eight-bit data with no conversion into the selection. Yes, this breaks the ICCCM in non-Latin-1 locales. */ *type = XA_STRING; *value = (XtPointer) screen->selection_data; *length = screen->selection_length; *format = 8; result = True; TRACE(("...raw 8-bit data:%d\n", result)); } else if (*target == XA_TEXT(dpy)) { /* not wide_chars */ result = _ConvertSelectionHelper(w, type, value, length, data, data_length, format, XmbTextListToTextProperty, XStdICCTextStyle); TRACE(("...XmbTextListToTextProperty(StdICC):%d\n", result)); } else if (*target == XA_COMPOUND_TEXT(dpy)) { /* not wide_chars */ result = _ConvertSelectionHelper(w, type, value, length, data, data_length, format, XmbTextListToTextProperty, XCompoundTextStyle); TRACE(("...XmbTextListToTextProperty(Compound):%d\n", result)); } #ifdef X_HAVE_UTF8_STRING else if (*target == XA_UTF8_STRING(dpy)) { /* not wide_chars */ result = _ConvertSelectionHelper(w, type, value, length, data, data_length, format, XmbTextListToTextProperty, XUTF8StringStyle); TRACE(("...XmbTextListToTextProperty(UTF8):%d\n", result)); } #endif else if (*target == XA_LIST_LENGTH(dpy)) { result = SaveConvertedLength(value, (unsigned long) 1); *type = XA_INTEGER; *length = 1; *format = 32; TRACE(("...list of values:%d\n", result)); } else if (*target == XA_LENGTH(dpy)) { /* This value is wrong if we have UTF-8 text */ result = SaveConvertedLength(value, screen->selection_length); *type = XA_INTEGER; *length = 1; *format = 32; TRACE(("...list of values:%d\n", result)); } else if (XmuConvertStandardSelection(w, screen->selection_time, selection, target, type, (XPointer *) value, length, format)) { result = True; TRACE(("...XmuConvertStandardSelection:%d\n", result)); } /* else */ return (Boolean) result; } static void LoseSelection(Widget w, Atom *selection) { TScreen *screen; Atom *atomP; Cardinal i; XtermWidget xw; if ((xw = getXtermWidget(w)) == 0) return; screen = TScreenOf(xw); TRACE(("LoseSelection %s\n", TraceAtomName(screen->display, *selection))); for (i = 0, atomP = screen->selection_atoms; i < screen->selection_count; i++, atomP++) { if (*selection == *atomP) *atomP = (Atom) 0; if (CutBuffer(*atomP) >= 0) { *atomP = (Atom) 0; } } for (i = screen->selection_count; i; i--) { if (screen->selection_atoms[i - 1] != 0) break; } screen->selection_count = i; for (i = 0, atomP = screen->selection_atoms; i < screen->selection_count; i++, atomP++) { if (*atomP == (Atom) 0) { *atomP = screen->selection_atoms[--screen->selection_count]; } } if (screen->selection_count == 0) TrackText(xw, &zeroCELL, &zeroCELL); } /* ARGSUSED */ static void SelectionDone(Widget w GCC_UNUSED, Atom *selection GCC_UNUSED, Atom *target GCC_UNUSED) { /* empty proc so Intrinsics know we want to keep storage */ TRACE(("SelectionDone\n")); } static void _OwnSelection(XtermWidget xw, String *selections, Cardinal count) { TScreen *screen = TScreenOf(xw); Atom *atoms = screen->selection_atoms; Cardinal i; Bool have_selection = False; if (count == 0) return; TRACE(("_OwnSelection count %d, length %ld value %s\n", count, screen->selection_length, visibleChars(screen->selection_data, (unsigned) screen->selection_length))); selections = MapSelections(xw, selections, count); if (count > screen->sel_atoms_size) { XtFree((char *) atoms); atoms = TypeXtMallocN(Atom, count); screen->selection_atoms = atoms; screen->sel_atoms_size = count; } XmuInternStrings(XtDisplay((Widget) xw), selections, count, atoms); for (i = 0; i < count; i++) { int cutbuffer = CutBuffer(atoms[i]); if (cutbuffer >= 0) { unsigned long limit = (unsigned long) (4 * XMaxRequestSize(XtDisplay((Widget) xw)) - 32); if (screen->selection_length > limit) { TRACE(("selection too big (%lu bytes), not storing in CUT_BUFFER%d\n", screen->selection_length, cutbuffer)); xtermWarning("selection too big (%lu bytes), not storing in CUT_BUFFER%d\n", screen->selection_length, cutbuffer); } else { /* This used to just use the UTF-8 data, which was totally * broken as not even the corresponding paste code in xterm * understood this! So now it converts to Latin1 first. * Robert Brady, 2000-09-05 */ unsigned long length = screen->selection_length; Char *data = screen->selection_data; if_OPT_WIDE_CHARS((screen), { data = UTF8toLatin1(screen, data, length, &length); }); TRACE(("XStoreBuffer(%d)\n", cutbuffer)); XStoreBuffer(XtDisplay((Widget) xw), (char *) data, (int) length, cutbuffer); } } else if (keepClipboard(atoms[i])) { Char *buf; TRACE(("saving selection to clipboard buffer\n")); if ((buf = (Char *) malloc((size_t) screen->selection_length)) == 0) SysError(ERROR_BMALLOC2); XtFree((char *) screen->clipboard_data); memcpy(buf, screen->selection_data, screen->selection_length); screen->clipboard_data = buf; screen->clipboard_size = screen->selection_length; } else if (screen->selection_length == 0) { XtDisownSelection((Widget) xw, atoms[i], screen->selection_time); } else if (!screen->replyToEmacs) { have_selection |= XtOwnSelection((Widget) xw, atoms[i], screen->selection_time, ConvertSelection, LoseSelection, SelectionDone); } } if (!screen->replyToEmacs) screen->selection_count = count; if (!have_selection) TrackText(xw, &zeroCELL, &zeroCELL); } static void ResetSelectionState(TScreen *screen) { screen->selection_count = 0; screen->startH = zeroCELL; screen->endH = zeroCELL; } void DisownSelection(XtermWidget xw) { TScreen *screen = TScreenOf(xw); Atom *atoms = screen->selection_atoms; Cardinal count = screen->selection_count; Cardinal i; TRACE(("DisownSelection count %d, start %d.%d, end %d.%d\n", count, screen->startH.row, screen->startH.col, screen->endH.row, screen->endH.col)); for (i = 0; i < count; i++) { int cutbuffer = CutBuffer(atoms[i]); if (cutbuffer < 0) { XtDisownSelection((Widget) xw, atoms[i], screen->selection_time); } } /* * If none of the callbacks via XtDisownSelection() reset highlighting * do it now. */ if (ScrnHaveSelection(screen)) { /* save data which will be reset */ CELL first = screen->startH; CELL last = screen->endH; ResetSelectionState(screen); ReHiliteText(xw, &first, &last); } else { ResetSelectionState(screen); } } void UnhiliteSelection(XtermWidget xw) { TScreen *screen = TScreenOf(xw); if (ScrnHaveSelection(screen)) { CELL first = screen->startH; CELL last = screen->endH; screen->startH = zeroCELL; screen->endH = zeroCELL; ReHiliteText(xw, &first, &last); } } /* returns number of chars in line from scol to ecol out */ /* ARGSUSED */ static int Length(TScreen *screen, int row, int scol, int ecol) { CLineData *ld = GET_LINEDATA(screen, row); const int lastcol = LastTextCol(screen, ld, row); if (ecol > lastcol) ecol = lastcol; return (ecol - scol + 1); } /* copies text into line, preallocated */ static Char * SaveText(TScreen *screen, int row, int scol, int ecol, Char *lp, /* pointer to where to put the text */ int *eol) { LineData *ld; int i = 0; Char *result = lp; #if OPT_WIDE_CHARS unsigned previous = 0; #endif ld = GET_LINEDATA(screen, row); i = Length(screen, row, scol, ecol); ecol = scol + i; #if OPT_DEC_CHRSET if (CSET_DOUBLE(GetLineDblCS(ld))) { scol = (scol + 0) / 2; ecol = (ecol + 1) / 2; } #endif *eol = !LineTstWrapped(ld); for (i = scol; i < ecol; i++) { unsigned c; assert(i < (int) ld->lineSize); c = E2A(ld->charData[i]); #if OPT_WIDE_CHARS /* We want to strip out every occurrence of HIDDEN_CHAR AFTER a * wide character. */ if (c == HIDDEN_CHAR) { if (isWide((int) previous)) { previous = c; /* Combining characters attached to double-width characters are in memory attached to the HIDDEN_CHAR */ if_OPT_WIDE_CHARS(screen, { if ((screen->utf8_nrc_mode | screen->utf8_mode) != uFalse) { size_t off; for_each_combData(off, ld) { unsigned ch = ld->combData[off][i]; if (ch == 0) break; lp = convertToUTF8(lp, ch); } } }); continue; } else { c = ' '; /* should not happen, but just in case... */ } } previous = c; if ((screen->utf8_nrc_mode | screen->utf8_mode) != uFalse) { lp = convertToUTF8(lp, (c != 0) ? c : ' '); if_OPT_WIDE_CHARS(screen, { size_t off; for_each_combData(off, ld) { unsigned ch = ld->combData[off][i]; if (ch == 0) break; lp = convertToUTF8(lp, ch); } }); } else #endif { if (c == 0) { c = E2A(' '); } else if (c < E2A(' ')) { c = DECtoASCII(c); } else if (c == 0x7f) { c = 0x5f; } *lp++ = CharOf(A2E(c)); } if (c != E2A(' ')) result = lp; } /* * If requested, trim trailing blanks from selected lines. Do not do this * if the line is wrapped. */ if (!*eol || !screen->trim_selection) result = lp; return (result); } /* 32 + following 7-bit word: 1:0 Button no: 0, 1, 2. 3=release. 2 shift 3 meta 4 ctrl 5 set for motion notify 6 set for wheel */ /* Position: 32 - 255. */ static int BtnCode(XButtonEvent *event, int button) { int result = (int) (32 + (KeyState(event->state) << 2)); if (event->type == MotionNotify) result += 32; if (button < 0 || button > 5) { result += 3; } else { if (button > 3) result += (64 - 4); result += button; } TRACE(("BtnCode button %d, %s state " FMT_MODIFIER_NAMES " ->%#x\n", button, visibleEventType(event->type), ARG_MODIFIER_NAMES(event->state), result)); return result; } static unsigned EmitButtonCode(XtermWidget xw, Char *line, unsigned count, XButtonEvent *event, int button) { TScreen *screen = TScreenOf(xw); int value; if (okSendMousePos(xw) == X10_MOUSE) { value = CharOf(' ' + button); } else { value = BtnCode(event, button); } switch (screen->extend_coords) { default: line[count++] = CharOf(value); break; case SET_SGR_EXT_MODE_MOUSE: value -= 32; /* encoding starts at zero */ /* FALLTHRU */ case SET_URXVT_EXT_MODE_MOUSE: count += (unsigned) sprintf((char *) line + count, "%d", value); break; case SET_EXT_MODE_MOUSE: if (value < 128) { line[count++] = CharOf(value); } else { line[count++] = CharOf(0xC0 + (value >> 6)); line[count++] = CharOf(0x80 + (value & 0x3F)); } break; } return count; } static int FirstBitN(int bits) { int result = -1; if (bits > 0) { result = 0; while (!(bits & 1)) { bits /= 2; ++result; } } return result; } #define ButtonBit(button) ((button >= 0) ? (1 << (button)) : 0) #define EMIT_BUTTON(button) EmitButtonCode(xw, line, count, event, button) static void EditorButton(XtermWidget xw, XButtonEvent *event) { TScreen *screen = TScreenOf(xw); int pty = screen->respond; int mouse_limit = MouseLimit(screen); Char line[32]; Char final = 'M'; int row, col; int button; unsigned count = 0; Boolean changed = True; /* If button event, get button # adjusted for DEC compatibility */ button = (int) (event->button - 1); if (button >= 3) button++; /* Compute character position of mouse pointer */ row = (event->y - screen->border) / FontHeight(screen); col = (event->x - OriginX(screen)) / FontWidth(screen); /* Limit to screen dimensions */ if (row < 0) row = 0; else if (row > screen->max_row) row = screen->max_row; if (col < 0) col = 0; else if (col > screen->max_col) col = screen->max_col; if (mouse_limit > 0) { /* Limit to representable mouse dimensions */ if (row > mouse_limit) row = mouse_limit; if (col > mouse_limit) col = mouse_limit; } /* Build key sequence starting with \E[M */ if (screen->control_eight_bits) { line[count++] = ANSI_CSI; } else { line[count++] = ANSI_ESC; line[count++] = '['; } switch (screen->extend_coords) { case 0: case SET_EXT_MODE_MOUSE: #if OPT_SCO_FUNC_KEYS if (xw->keyboard.type == keyboardIsSCO) { /* * SCO function key F1 is \E[M, which would conflict with xterm's * normal kmous. */ line[count++] = '>'; } #endif line[count++] = final; break; case SET_SGR_EXT_MODE_MOUSE: line[count++] = '<'; break; } /* Add event code to key sequence */ if (okSendMousePos(xw) == X10_MOUSE) { count = EMIT_BUTTON(button); } else { /* Button-Motion events */ switch (event->type) { case ButtonPress: screen->mouse_button |= ButtonBit(button); count = EMIT_BUTTON(button); break; case ButtonRelease: /* * Wheel mouse interface generates release-events for buttons * 4 and 5, coded here as 3 and 4 respectively. We change the * release for buttons 1..3 to a -1, which will be later mapped * into a "0" (some button was released). */ screen->mouse_button &= ~ButtonBit(button); if (button < 3) { switch (screen->extend_coords) { case SET_SGR_EXT_MODE_MOUSE: final = 'm'; break; default: button = -1; break; } } count = EMIT_BUTTON(button); break; case MotionNotify: /* BTN_EVENT_MOUSE and ANY_EVENT_MOUSE modes send motion * events only if character cell has changed. */ if ((row == screen->mouse_row) && (col == screen->mouse_col)) { changed = False; } else { count = EMIT_BUTTON(FirstBitN(screen->mouse_button)); } break; default: changed = False; break; } } if (changed) { screen->mouse_row = row; screen->mouse_col = col; TRACE(("mouse at %d,%d button+mask = %#x\n", row, col, line[count - 1])); /* Add pointer position to key sequence */ count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, col); count = EmitMousePositionSeparator(screen, line, count); count = EmitMousePosition(screen, line, count, row); switch (screen->extend_coords) { case SET_SGR_EXT_MODE_MOUSE: case SET_URXVT_EXT_MODE_MOUSE: line[count++] = final; break; } /* Transmit key sequence to process running under xterm */ v_write(pty, line, count); } return; } /* * Check the current send_mouse_pos against allowed mouse-operations, returning * none if it is disallowed. */ XtermMouseModes okSendMousePos(XtermWidget xw) { TScreen *screen = TScreenOf(xw); XtermMouseModes result = screen->send_mouse_pos; switch (result) { case MOUSE_OFF: break; case X10_MOUSE: if (!AllowMouseOps(xw, emX10)) result = MOUSE_OFF; break; case VT200_MOUSE: if (!AllowMouseOps(xw, emVT200Click)) result = MOUSE_OFF; break; case VT200_HIGHLIGHT_MOUSE: if (!AllowMouseOps(xw, emVT200Hilite)) result = MOUSE_OFF; break; case BTN_EVENT_MOUSE: if (!AllowMouseOps(xw, emAnyButton)) result = MOUSE_OFF; break; case ANY_EVENT_MOUSE: if (!AllowMouseOps(xw, emAnyEvent)) result = MOUSE_OFF; break; case DEC_LOCATOR: if (!AllowMouseOps(xw, emLocator)) result = MOUSE_OFF; break; } return result; } #if OPT_FOCUS_EVENT /* * Check the current send_focus_pos against allowed mouse-operations, returning * none if it is disallowed. */ static int okSendFocusPos(XtermWidget xw) { TScreen *screen = TScreenOf(xw); int result = screen->send_focus_pos; if (!AllowMouseOps(xw, emFocusEvent)) { result = False; } return result; } void SendFocusButton(XtermWidget xw, XFocusChangeEvent *event) { if (okSendFocusPos(xw)) { ANSI reply; memset(&reply, 0, sizeof(reply)); reply.a_type = ANSI_CSI; #if OPT_SCO_FUNC_KEYS if (xw->keyboard.type == keyboardIsSCO) { reply.a_pintro = '>'; } #endif reply.a_final = CharOf((event->type == FocusIn) ? 'I' : 'O'); unparseseq(xw, &reply); } return; } #endif /* OPT_FOCUS_EVENT */ #if OPT_SELECTION_OPS /* * Get the event-time, needed to process selections. */ static Time getEventTime(XEvent *event) { Time result; if (IsBtnEvent(event)) { result = ((XButtonEvent *) event)->time; } else if (IsKeyEvent(event)) { result = ((XKeyEvent *) event)->time; } else { result = 0; } return result; } /* obtain the selection string, passing the endpoints to caller's parameters */ static void doSelectionFormat(XtermWidget xw, Widget w, XEvent *event, String *params, Cardinal *num_params, FormatSelect format_select) { TScreen *screen = TScreenOf(xw); InternalSelect *mydata = &(screen->internal_select); memset(mydata, 0, sizeof(*mydata)); mydata->format = x_strdup(params[0]); mydata->format_select = format_select; /* override flags so that SelectionReceived only updates a buffer */ #if OPT_PASTE64 mydata->base64_paste = screen->base64_paste; screen->base64_paste = 0; #endif #if OPT_READLINE mydata->paste_brackets = screen->paste_brackets; SCREEN_FLAG_unset(screen, paste_brackets); #endif screen->selectToBuffer = True; xtermGetSelection(w, getEventTime(event), params + 1, *num_params - 1, NULL); } /* obtain data from the screen, passing the endpoints to caller's parameters */ static char * getDataFromScreen(XtermWidget xw, XEvent *event, String method, CELL *start, CELL *finish) { TScreen *screen = TScreenOf(xw); CELL save_old_start = screen->startH; CELL save_old_end = screen->endH; CELL save_startSel = screen->startSel; CELL save_startRaw = screen->startRaw; CELL save_finishSel = screen->endSel; CELL save_finishRaw = screen->endRaw; int save_firstValidRow = screen->firstValidRow; int save_lastValidRow = screen->lastValidRow; const Cardinal noClick = 0; int save_numberOfClicks = screen->numberOfClicks; SelectUnit saveUnits = screen->selectUnit; SelectUnit saveMap = screen->selectMap[noClick]; #if OPT_SELECT_REGEX char *saveExpr = screen->selectExpr[noClick]; #endif Char *save_selection_data = screen->selection_data; int save_selection_size = screen->selection_size; unsigned long save_selection_length = screen->selection_length; char *result = 0; TRACE(("getDataFromScreen %s\n", method)); screen->selection_data = 0; screen->selection_size = 0; screen->selection_length = 0; screen->numberOfClicks = 1; lookupSelectUnit(xw, noClick, method); screen->selectUnit = screen->selectMap[noClick]; memset(start, 0, sizeof(*start)); if (IsBtnEvent(event)) { XButtonEvent *btn_event = (XButtonEvent *) event; CELL cell; screen->firstValidRow = 0; screen->lastValidRow = screen->max_row; PointToCELL(screen, btn_event->y, btn_event->x, &cell); start->row = cell.row; start->col = cell.col; finish->row = cell.row; finish->col = screen->max_col; } else { start->row = screen->cur_row; start->col = screen->cur_col; finish->row = screen->cur_row; finish->col = screen->max_col; } ComputeSelect(xw, start, finish, False); SaltTextAway(xw, &(screen->startSel), &(screen->endSel)); if (screen->selection_length && screen->selection_data) { TRACE(("...getDataFromScreen selection_data %.*s\n", (int) screen->selection_length, screen->selection_data)); result = malloc(screen->selection_length + 1); if (result) { memcpy(result, screen->selection_data, screen->selection_length); result[screen->selection_length] = 0; } free(screen->selection_data); } TRACE(("...getDataFromScreen restoring previous selection\n")); screen->startSel = save_startSel; screen->startRaw = save_startRaw; screen->endSel = save_finishSel; screen->endRaw = save_finishRaw; screen->firstValidRow = save_firstValidRow; screen->lastValidRow = save_lastValidRow; screen->numberOfClicks = save_numberOfClicks; screen->selectUnit = saveUnits; screen->selectMap[noClick] = saveMap; #if OPT_SELECT_REGEX screen->selectExpr[noClick] = saveExpr; #endif screen->selection_data = save_selection_data; screen->selection_size = save_selection_size; screen->selection_length = save_selection_length; TrackText(xw, &save_old_start, &save_old_end); TRACE(("...getDataFromScreen done\n")); return result; } /* * Split-up the format before substituting data, to avoid quoting issues. * The resource mechanism has a limited ability to handle escapes. We take * the result as if it were an sh-type string and parse it into a regular * argv array. */ static char ** tokenizeFormat(String format) { char **result = 0; int argc; format = x_skip_blanks(format); if (*format != '\0') { char *blob = x_strdup(format); int pass; for (pass = 0; pass < 2; ++pass) { int used = 0; int first = 1; int escaped = 0; int squoted = 0; int dquoted = 0; int n; argc = 0; for (n = 0; format[n] != '\0'; ++n) { if (escaped) { blob[used++] = format[n]; escaped = 0; } else if (format[n] == '"') { if (!squoted) { if (!dquoted) blob[used++] = format[n]; dquoted = !dquoted; } } else if (format[n] == '\'') { if (!dquoted) { if (!squoted) blob[used++] = format[n]; squoted = !squoted; } } else if (format[n] == '\\') { blob[used++] = format[n]; escaped = 1; } else { if (first) { first = 0; if (pass) { result[argc] = &blob[n]; } ++argc; } if (isspace((Char) format[n])) { first = !isspace((Char) format[n + 1]); if (squoted || dquoted) { blob[used++] = format[n]; } else if (first) { blob[used++] = '\0'; } } else { blob[used++] = format[n]; } } } blob[used] = '\0'; assert(strlen(blob) <= strlen(format)); if (!pass) { result = TypeCallocN(char *, argc + 1); if (result == 0) { free(blob); break; } } } } #if OPT_TRACE if (result) { TRACE(("tokenizeFormat %s\n", format)); for (argc = 0; result[argc]; ++argc) { TRACE(("argv[%d] = %s\n", argc, result[argc])); } } #endif return result; } static void formatVideoAttrs(XtermWidget xw, char *buffer, CELL *cell) { TScreen *screen = TScreenOf(xw); LineData *ld = GET_LINEDATA(screen, cell->row); *buffer = '\0'; if (ld != 0 && cell->col < (int) ld->lineSize) { IAttr attribs = ld->attribs[cell->col]; const char *delim = ""; if (attribs & INVERSE) { buffer += sprintf(buffer, "7"); delim = ";"; } if (attribs & UNDERLINE) { buffer += sprintf(buffer, "%s4", delim); delim = ";"; } if (attribs & BOLD) { buffer += sprintf(buffer, "%s1", delim); delim = ";"; } if (attribs & BLINK) { buffer += sprintf(buffer, "%s5", delim); delim = ";"; } #if OPT_ISO_COLORS if (attribs & FG_COLOR) { unsigned fg = extract_fg(xw, ld->color[cell->col], attribs); if (fg < 8) { fg += 30; } else if (fg < 16) { fg += 90; } else { buffer += sprintf(buffer, "%s38;5", delim); delim = ";"; } buffer += sprintf(buffer, "%s%u", delim, fg); delim = ";"; } if (attribs & BG_COLOR) { unsigned bg = extract_bg(xw, ld->color[cell->col], attribs); if (bg < 8) { bg += 40; } else if (bg < 16) { bg += 100; } else { buffer += sprintf(buffer, "%s48;5", delim); delim = ";"; } (void) sprintf(buffer, "%s%u", delim, bg); } #endif } } static char * formatStrlen(char *target, char *source, int freeit) { if (source != 0) { sprintf(target, "%u", (unsigned) strlen(source)); if (freeit) { free(source); } } else { strcpy(target, "0"); } return target; } /* substitute data into format, reallocating the result */ static char * expandFormat(XtermWidget xw, const char *format, char *data, CELL *start, CELL *finish) { char *result = 0; if (!IsEmpty(format)) { static char empty[1]; int pass; int n; char numbers[80]; if (data == 0) data = empty; for (pass = 0; pass < 2; ++pass) { size_t need = 0; for (n = 0; format[n] != '\0'; ++n) { if (format[n] == '%') { char *value = 0; switch (format[++n]) { case '%': if (pass) { result[need] = format[n]; } ++need; break; case 'P': sprintf(numbers, "%d;%d", TScreenOf(xw)->topline + start->row + 1, start->col + 1); value = numbers; break; case 'p': sprintf(numbers, "%d;%d", TScreenOf(xw)->topline + finish->row + 1, finish->col + 1); value = numbers; break; case 'R': value = formatStrlen(numbers, x_strrtrim(data), 1); break; case 'r': value = x_strrtrim(data); break; case 'S': value = formatStrlen(numbers, data, 0); break; case 's': value = data; break; case 'T': value = formatStrlen(numbers, x_strtrim(data), 1); break; case 't': value = x_strtrim(data); break; case 'V': formatVideoAttrs(xw, numbers, start); value = numbers; break; case 'v': formatVideoAttrs(xw, numbers, finish); value = numbers; break; default: if (pass) { result[need] = format[n]; } --n; ++need; break; } if (value != 0) { if (pass) { strcpy(result + need, value); } need += strlen(value); if (value != numbers && value != data) { free(value); } } } else { if (pass) { result[need] = format[n]; } ++need; } } if (pass) { result[need] = '\0'; } else { ++need; result = malloc(need); if (result == 0) { break; } } } } TRACE(("expandFormat(%s) = %s\n", NonNull(format), NonNull(result))); return result; } /* execute the command after forking. The main process frees its data */ static void executeCommand(pid_t pid, char **argv) { (void) pid; if (argv != 0 && argv[0] != 0) { char *child_cwd = ProcGetCWD(pid); if (fork() == 0) { if (child_cwd) { IGNORE_RC(chdir(child_cwd)); /* We don't care if this fails */ } execvp(argv[0], argv); exit(EXIT_FAILURE); } free(child_cwd); } } static void freeArgv(char *blob, char **argv) { if (blob) { free(blob); if (argv) { int n; for (n = 0; argv[n]; ++n) free(argv[n]); free(argv); } } } static void reallyExecFormatted(Widget w, char *format, char *data, CELL *start, CELL *finish) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { char **argv; if ((argv = tokenizeFormat(format)) != 0) { char *blob = argv[0]; int argc; for (argc = 0; argv[argc] != 0; ++argc) { argv[argc] = expandFormat(xw, argv[argc], data, start, finish); } executeCommand(TScreenOf(xw)->pid, argv); freeArgv(blob, argv); } } } void HandleExecFormatted(Widget w, XEvent *event, String *params, /* selections */ Cardinal *num_params) { XtermWidget xw; TRACE(("HandleExecFormatted(%d)\n", *num_params)); if ((xw = getXtermWidget(w)) != 0 && (*num_params > 1)) { doSelectionFormat(xw, w, event, params, num_params, reallyExecFormatted); } } void HandleExecSelectable(Widget w, XEvent *event, String *params, /* selections */ Cardinal *num_params) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleExecSelectable(%d)\n", *num_params)); if (*num_params == 2) { CELL start, finish; char *data; char **argv; data = getDataFromScreen(xw, event, params[1], &start, &finish); if (data != 0) { if ((argv = tokenizeFormat(params[0])) != 0) { char *blob = argv[0]; int argc; for (argc = 0; argv[argc] != 0; ++argc) { argv[argc] = expandFormat(xw, argv[argc], data, &start, &finish); } executeCommand(TScreenOf(xw)->pid, argv); freeArgv(blob, argv); } free(data); } } } } static void reallyInsertFormatted(Widget w, char *format, char *data, CELL *start, CELL *finish) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { char *exps; if ((exps = expandFormat(xw, format, data, start, finish)) != 0) { unparseputs(xw, exps); unparse_end(xw); free(exps); } } } void HandleInsertFormatted(Widget w, XEvent *event, String *params, /* selections */ Cardinal *num_params) { XtermWidget xw; TRACE(("HandleInsertFormatted(%d)\n", *num_params)); if ((xw = getXtermWidget(w)) != 0 && (*num_params > 1)) { doSelectionFormat(xw, w, event, params, num_params, reallyInsertFormatted); } } void HandleInsertSelectable(Widget w, XEvent *event, String *params, /* selections */ Cardinal *num_params) { XtermWidget xw; if ((xw = getXtermWidget(w)) != 0) { TRACE(("HandleInsertSelectable(%d)\n", *num_params)); if (*num_params == 2) { CELL start, finish; char *data; char *temp = x_strdup(params[0]); data = getDataFromScreen(xw, event, params[1], &start, &finish); if (data != 0) { char *exps = expandFormat(xw, temp, data, &start, &finish); if (exps != 0) { unparseputs(xw, exps); unparse_end(xw); free(exps); } free(data); } free(temp); } } } #endif /* OPT_SELECTION_OPS */