GUACAMOLE-573: Move terminal text selection code into own file.
This commit is contained in:
Michael Jumper
parent
21f54b9e12
commit
f87af06ad6
@ -30,6 +30,7 @@ noinst_HEADERS = \
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terminal/named-colors.h \
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terminal/named-colors.h \
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terminal/palette.h \
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terminal/palette.h \
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terminal/scrollbar.h \
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terminal/scrollbar.h \
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terminal/select.h \
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terminal/terminal.h \
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terminal/terminal.h \
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terminal/terminal_handlers.h \
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terminal/terminal_handlers.h \
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terminal/types.h \
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terminal/types.h \
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@ -44,6 +45,7 @@ libguac_terminal_la_SOURCES = \
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named-colors.c \
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named-colors.c \
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palette.c \
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palette.c \
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scrollbar.c \
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scrollbar.c \
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select.c \
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terminal.c \
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terminal.c \
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terminal_handlers.c \
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terminal_handlers.c \
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typescript.c \
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typescript.c \
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228
src/terminal/select.c
Normal file
228
src/terminal/select.c
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@ -0,0 +1,228 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "config.h"
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#include "common/clipboard.h"
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#include "common/cursor.h"
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#include "terminal/buffer.h"
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#include "terminal/common.h"
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#include "terminal/display.h"
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#include "terminal/palette.h"
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#include "terminal/terminal.h"
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#include "terminal/terminal_handlers.h"
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#include "terminal/types.h"
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#include "terminal/typescript.h"
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#include "terminal/xparsecolor.h"
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#include <ctype.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <wchar.h>
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#include <guacamole/client.h>
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#include <guacamole/error.h>
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#include <guacamole/protocol.h>
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#include <guacamole/socket.h>
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#include <guacamole/timestamp.h>
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void guac_terminal_select_redraw(guac_terminal* terminal) {
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int start_row = terminal->selection_start_row + terminal->scroll_offset;
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int start_column = terminal->selection_start_column;
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int end_row = terminal->selection_end_row + terminal->scroll_offset;
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int end_column = terminal->selection_end_column;
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/* Update start/end columns to include character width */
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if (start_row > end_row || (start_row == end_row && start_column > end_column))
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start_column += terminal->selection_start_width - 1;
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else
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end_column += terminal->selection_end_width - 1;
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guac_terminal_display_select(terminal->display, start_row, start_column, end_row, end_column);
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}
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/**
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* Locates the beginning of the character at the given row and column, updating
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* the column to the starting column of that character. The width, if available,
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* is returned. If the character has no defined width, 1 is returned.
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*/
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static int __guac_terminal_find_char(guac_terminal* terminal, int row, int* column) {
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int start_column = *column;
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guac_terminal_buffer_row* buffer_row = guac_terminal_buffer_get_row(terminal->buffer, row, 0);
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if (start_column < buffer_row->length) {
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/* Find beginning of character */
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guac_terminal_char* start_char = &(buffer_row->characters[start_column]);
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while (start_column > 0 && start_char->value == GUAC_CHAR_CONTINUATION) {
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start_char--;
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start_column--;
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}
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/* Use width, if available */
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if (start_char->value != GUAC_CHAR_CONTINUATION) {
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*column = start_column;
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return start_char->width;
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}
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}
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/* Default to one column wide */
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return 1;
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}
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void guac_terminal_select_start(guac_terminal* terminal, int row, int column) {
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int width = __guac_terminal_find_char(terminal, row, &column);
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terminal->selection_start_row =
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terminal->selection_end_row = row;
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terminal->selection_start_column =
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terminal->selection_end_column = column;
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terminal->selection_start_width =
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terminal->selection_end_width = width;
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terminal->text_selected = true;
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guac_terminal_select_redraw(terminal);
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}
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void guac_terminal_select_update(guac_terminal* terminal, int row, int column) {
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/* Only update if selection has changed */
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if (row != terminal->selection_end_row
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|| column < terminal->selection_end_column
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|| column >= terminal->selection_end_column + terminal->selection_end_width) {
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int width = __guac_terminal_find_char(terminal, row, &column);
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terminal->selection_end_row = row;
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terminal->selection_end_column = column;
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terminal->selection_end_width = width;
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guac_terminal_select_redraw(terminal);
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}
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}
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int __guac_terminal_buffer_string(guac_terminal_buffer_row* row, int start, int end, char* string) {
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int length = 0;
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int i;
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for (i=start; i<=end; i++) {
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int codepoint = row->characters[i].value;
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/* If not null (blank), add to string */
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if (codepoint != 0 && codepoint != GUAC_CHAR_CONTINUATION) {
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int bytes = guac_terminal_encode_utf8(codepoint, string);
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string += bytes;
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length += bytes;
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}
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}
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return length;
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}
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void guac_terminal_select_end(guac_terminal* terminal, char* string) {
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/* Deselect */
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terminal->text_selected = false;
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guac_terminal_display_commit_select(terminal->display);
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guac_terminal_buffer_row* buffer_row;
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int row;
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int start_row, start_col;
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int end_row, end_col;
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/* Ensure proper ordering of start and end coords */
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if (terminal->selection_start_row < terminal->selection_end_row
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|| (terminal->selection_start_row == terminal->selection_end_row
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&& terminal->selection_start_column < terminal->selection_end_column)) {
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start_row = terminal->selection_start_row;
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start_col = terminal->selection_start_column;
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end_row = terminal->selection_end_row;
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end_col = terminal->selection_end_column + terminal->selection_end_width - 1;
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}
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else {
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end_row = terminal->selection_start_row;
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end_col = terminal->selection_start_column + terminal->selection_start_width - 1;
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start_row = terminal->selection_end_row;
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start_col = terminal->selection_end_column;
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}
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/* If only one row, simply copy */
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buffer_row = guac_terminal_buffer_get_row(terminal->buffer, start_row, 0);
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if (end_row == start_row) {
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if (buffer_row->length - 1 < end_col)
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end_col = buffer_row->length - 1;
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string += __guac_terminal_buffer_string(buffer_row, start_col, end_col, string);
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}
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/* Otherwise, copy multiple rows */
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else {
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/* Store first row */
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string += __guac_terminal_buffer_string(buffer_row, start_col, buffer_row->length - 1, string);
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/* Store all middle rows */
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for (row=start_row+1; row<end_row; row++) {
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buffer_row = guac_terminal_buffer_get_row(terminal->buffer, row, 0);
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*(string++) = '\n';
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string += __guac_terminal_buffer_string(buffer_row, 0, buffer_row->length - 1, string);
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}
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/* Store last row */
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buffer_row = guac_terminal_buffer_get_row(terminal->buffer, end_row, 0);
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if (buffer_row->length - 1 < end_col)
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end_col = buffer_row->length - 1;
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*(string++) = '\n';
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string += __guac_terminal_buffer_string(buffer_row, 0, end_col, string);
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}
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/* Null terminator */
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*string = 0;
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}
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@ -25,6 +25,7 @@
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#include "terminal/common.h"
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#include "terminal/common.h"
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#include "terminal/display.h"
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#include "terminal/display.h"
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#include "terminal/palette.h"
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#include "terminal/palette.h"
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#include "terminal/select.h"
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#include "terminal/terminal.h"
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#include "terminal/terminal.h"
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#include "terminal/terminal_handlers.h"
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#include "terminal/terminal_handlers.h"
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#include "terminal/types.h"
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#include "terminal/types.h"
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@ -1269,184 +1270,6 @@ void guac_terminal_scroll_display_up(guac_terminal* terminal,
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}
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}
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void guac_terminal_select_redraw(guac_terminal* terminal) {
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int start_row = terminal->selection_start_row + terminal->scroll_offset;
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int start_column = terminal->selection_start_column;
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int end_row = terminal->selection_end_row + terminal->scroll_offset;
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int end_column = terminal->selection_end_column;
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/* Update start/end columns to include character width */
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if (start_row > end_row || (start_row == end_row && start_column > end_column))
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start_column += terminal->selection_start_width - 1;
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else
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end_column += terminal->selection_end_width - 1;
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guac_terminal_display_select(terminal->display, start_row, start_column, end_row, end_column);
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}
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/**
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* Locates the beginning of the character at the given row and column, updating
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* the column to the starting column of that character. The width, if available,
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* is returned. If the character has no defined width, 1 is returned.
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*/
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static int __guac_terminal_find_char(guac_terminal* terminal, int row, int* column) {
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int start_column = *column;
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guac_terminal_buffer_row* buffer_row = guac_terminal_buffer_get_row(terminal->buffer, row, 0);
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if (start_column < buffer_row->length) {
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/* Find beginning of character */
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guac_terminal_char* start_char = &(buffer_row->characters[start_column]);
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while (start_column > 0 && start_char->value == GUAC_CHAR_CONTINUATION) {
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start_char--;
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start_column--;
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}
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/* Use width, if available */
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if (start_char->value != GUAC_CHAR_CONTINUATION) {
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*column = start_column;
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return start_char->width;
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}
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}
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/* Default to one column wide */
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return 1;
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}
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void guac_terminal_select_start(guac_terminal* terminal, int row, int column) {
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int width = __guac_terminal_find_char(terminal, row, &column);
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terminal->selection_start_row =
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terminal->selection_end_row = row;
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terminal->selection_start_column =
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terminal->selection_end_column = column;
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terminal->selection_start_width =
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terminal->selection_end_width = width;
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terminal->text_selected = true;
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guac_terminal_select_redraw(terminal);
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}
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void guac_terminal_select_update(guac_terminal* terminal, int row, int column) {
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/* Only update if selection has changed */
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if (row != terminal->selection_end_row
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|| column < terminal->selection_end_column
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|| column >= terminal->selection_end_column + terminal->selection_end_width) {
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int width = __guac_terminal_find_char(terminal, row, &column);
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terminal->selection_end_row = row;
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terminal->selection_end_column = column;
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terminal->selection_end_width = width;
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guac_terminal_select_redraw(terminal);
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}
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}
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int __guac_terminal_buffer_string(guac_terminal_buffer_row* row, int start, int end, char* string) {
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int length = 0;
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int i;
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for (i=start; i<=end; i++) {
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int codepoint = row->characters[i].value;
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/* If not null (blank), add to string */
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if (codepoint != 0 && codepoint != GUAC_CHAR_CONTINUATION) {
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int bytes = guac_terminal_encode_utf8(codepoint, string);
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string += bytes;
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length += bytes;
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}
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}
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return length;
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}
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void guac_terminal_select_end(guac_terminal* terminal, char* string) {
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/* Deselect */
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terminal->text_selected = false;
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guac_terminal_display_commit_select(terminal->display);
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guac_terminal_buffer_row* buffer_row;
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int row;
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int start_row, start_col;
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int end_row, end_col;
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/* Ensure proper ordering of start and end coords */
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if (terminal->selection_start_row < terminal->selection_end_row
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|| (terminal->selection_start_row == terminal->selection_end_row
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&& terminal->selection_start_column < terminal->selection_end_column)) {
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start_row = terminal->selection_start_row;
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start_col = terminal->selection_start_column;
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end_row = terminal->selection_end_row;
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end_col = terminal->selection_end_column + terminal->selection_end_width - 1;
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}
|
|
||||||
else {
|
|
||||||
end_row = terminal->selection_start_row;
|
|
||||||
end_col = terminal->selection_start_column + terminal->selection_start_width - 1;
|
|
||||||
start_row = terminal->selection_end_row;
|
|
||||||
start_col = terminal->selection_end_column;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* If only one row, simply copy */
|
|
||||||
buffer_row = guac_terminal_buffer_get_row(terminal->buffer, start_row, 0);
|
|
||||||
if (end_row == start_row) {
|
|
||||||
if (buffer_row->length - 1 < end_col)
|
|
||||||
end_col = buffer_row->length - 1;
|
|
||||||
string += __guac_terminal_buffer_string(buffer_row, start_col, end_col, string);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Otherwise, copy multiple rows */
|
|
||||||
else {
|
|
||||||
|
|
||||||
/* Store first row */
|
|
||||||
string += __guac_terminal_buffer_string(buffer_row, start_col, buffer_row->length - 1, string);
|
|
||||||
|
|
||||||
/* Store all middle rows */
|
|
||||||
for (row=start_row+1; row<end_row; row++) {
|
|
||||||
|
|
||||||
buffer_row = guac_terminal_buffer_get_row(terminal->buffer, row, 0);
|
|
||||||
|
|
||||||
*(string++) = '\n';
|
|
||||||
string += __guac_terminal_buffer_string(buffer_row, 0, buffer_row->length - 1, string);
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Store last row */
|
|
||||||
buffer_row = guac_terminal_buffer_get_row(terminal->buffer, end_row, 0);
|
|
||||||
if (buffer_row->length - 1 < end_col)
|
|
||||||
end_col = buffer_row->length - 1;
|
|
||||||
|
|
||||||
*(string++) = '\n';
|
|
||||||
string += __guac_terminal_buffer_string(buffer_row, 0, end_col, string);
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Null terminator */
|
|
||||||
*string = 0;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
void guac_terminal_copy_columns(guac_terminal* terminal, int row,
|
void guac_terminal_copy_columns(guac_terminal* terminal, int row,
|
||||||
int start_column, int end_column, int offset) {
|
int start_column, int end_column, int offset) {
|
||||||
|
|
||||||
|
|||||||
85
src/terminal/terminal/select.h
Normal file
85
src/terminal/terminal/select.h
Normal file
@ -0,0 +1,85 @@
|
|||||||
|
/*
|
||||||
|
* Licensed to the Apache Software Foundation (ASF) under one
|
||||||
|
* or more contributor license agreements. See the NOTICE file
|
||||||
|
* distributed with this work for additional information
|
||||||
|
* regarding copyright ownership. The ASF licenses this file
|
||||||
|
* to you under the Apache License, Version 2.0 (the
|
||||||
|
* "License"); you may not use this file except in compliance
|
||||||
|
* with the License. You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing,
|
||||||
|
* software distributed under the License is distributed on an
|
||||||
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
||||||
|
* KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations
|
||||||
|
* under the License.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef GUAC_TERMINAL_SELECT_H
|
||||||
|
#define GUAC_TERMINAL_SELECT_H
|
||||||
|
|
||||||
|
#include "config.h"
|
||||||
|
#include "terminal.h"
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Marks the start of text selection at the given row and column. Any existing
|
||||||
|
* selection is cleared. This function should only be invoked while the
|
||||||
|
* guac_terminal is locked through a call to guac_terminal_lock().
|
||||||
|
*
|
||||||
|
* @param terminal
|
||||||
|
* The guac_terminal instance associated with the text being selected.
|
||||||
|
*
|
||||||
|
* @param row
|
||||||
|
* The row number of the character at the start of the text selection,
|
||||||
|
* where the first (top-most) row in the terminal is row 0. Rows within
|
||||||
|
* the scrollback buffer (above the top-most row of the terminal) will be
|
||||||
|
* negative.
|
||||||
|
*
|
||||||
|
* @param column
|
||||||
|
* The column number of the character at the start of the text selection,
|
||||||
|
* where the first (left-most) column in the terminal is column 0.
|
||||||
|
*/
|
||||||
|
void guac_terminal_select_start(guac_terminal* terminal, int row, int column);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Updates the end of text selection at the given row and column. This function
|
||||||
|
* should only be invoked while the guac_terminal is locked through a call to
|
||||||
|
* guac_terminal_lock().
|
||||||
|
*
|
||||||
|
* @param terminal
|
||||||
|
* The guac_terminal instance associated with the text being selected.
|
||||||
|
*
|
||||||
|
* @param row
|
||||||
|
* The row number of the character at the current end of the text
|
||||||
|
* selection, where the first (top-most) row in the terminal is row 0. Rows
|
||||||
|
* within the scrollback buffer (above the top-most row of the terminal)
|
||||||
|
* will be negative.
|
||||||
|
*
|
||||||
|
* @param column
|
||||||
|
* The column number of the character at the current end of the text
|
||||||
|
* selection, where the first (left-most) column in the terminal is
|
||||||
|
* column 0.
|
||||||
|
*/
|
||||||
|
void guac_terminal_select_update(guac_terminal* terminal, int row, int column);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Ends text selection, removing any highlight and storing the selected
|
||||||
|
* character data within the provided string buffer. This function should only
|
||||||
|
* be invoked while the guac_terminal is locked through a call to
|
||||||
|
* guac_terminal_lock().
|
||||||
|
*
|
||||||
|
* @param terminal
|
||||||
|
* The guac_terminal instance associated with the text being selected.
|
||||||
|
*
|
||||||
|
* @param string
|
||||||
|
* The buffer which should receive the characters within the selected
|
||||||
|
* area. This buffer must already have been allocated with sufficient
|
||||||
|
* space to store the selected text.
|
||||||
|
*/
|
||||||
|
void guac_terminal_select_end(guac_terminal* terminal, char* string);
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
@ -697,23 +697,6 @@ void guac_terminal_scroll_display_down(guac_terminal* terminal, int amount);
|
|||||||
*/
|
*/
|
||||||
void guac_terminal_scroll_display_up(guac_terminal* terminal, int amount);
|
void guac_terminal_scroll_display_up(guac_terminal* terminal, int amount);
|
||||||
|
|
||||||
/**
|
|
||||||
* Marks the start of text selection at the given row and column.
|
|
||||||
*/
|
|
||||||
void guac_terminal_select_start(guac_terminal* terminal, int row, int column);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Updates the end of text selection at the given row and column.
|
|
||||||
*/
|
|
||||||
void guac_terminal_select_update(guac_terminal* terminal, int row, int column);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Ends text selection, removing any highlight. Character data is stored in the
|
|
||||||
* string buffer provided.
|
|
||||||
*/
|
|
||||||
void guac_terminal_select_end(guac_terminal* terminal, char* string);
|
|
||||||
|
|
||||||
|
|
||||||
/* LOW-LEVEL TERMINAL OPERATIONS */
|
/* LOW-LEVEL TERMINAL OPERATIONS */
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user