Decouple header files
This commit is contained in:
Rico Tiongson
parent
a3ed877e33
commit
8e75bc4c1c
@ -1,17 +0,0 @@
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#include "comfortable-swipe.hpp"
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/* MAIN DRIVER FUNCTION */
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int main(int argc, char** args) {
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if (argc > 1) {
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string arg = args[1];
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// select based on argument
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if (arg == "start") service::start();
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else if (arg == "stop") service::stop();
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else if (arg == "restart") service::restart();
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else if (arg == "buffer") service::buffer();
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else if (arg == "autostart") service::autostart();
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else service::help();
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} else {
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service::help();
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}
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}
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@ -1,439 +0,0 @@
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/*
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Comfortable Swipe
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by Rico Tiongson
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <iostream>
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#include <fstream>
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#include <sstream>
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#include <map>
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#include <cstdio>
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#include <cstring>
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#include <cstdlib>
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#include <cstdarg>
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#include <cassert>
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#include <cmath>
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#include <regex>
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#include <chrono>
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#include <ctime>
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#include <unistd.h>
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#define cstr const string&
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#define PROGRAM "/usr/local/bin/comfortable-swipe"
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#define CONFIG "/usr/local/share/comfortable-swipe/comfortable-swipe.conf"
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using namespace std;
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extern "C" {
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// sudo apt install libxdo-dev
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#include <xdo.h>
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}
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/* MASKS FOR GESTURES */
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#define MSK_THREE_FINGERS 0
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#define MSK_FOUR_FINGERS 1
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#define MSK_NEGATIVE 0
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#define MSK_POSITIVE 2
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#define MSK_HORIZONTAL 0
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#define MSK_VERTICAL 4
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/* GESTURE MNEMONYMS */
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#define FRESH -1
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#define OPPOSITE (mask ^ MSK_POSITIVE)
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/* FORWARD DECLARATIONS */
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namespace util {
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extern const char* GESTURE_SWIPE_BEGIN_REGEX_PATTERN;
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extern const char* GESTURE_SWIPE_UPDATE_REGEX_PATTERN;
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extern const char* GESTURE_SWIPE_END_REGEX_PATTERN;
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map<string, string> read_config_file(const char*);
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}
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namespace service {
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void buffer();
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void start();
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void stop();
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void restart();
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void autostart();
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void help();
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}
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struct swipe_gesture {
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string fingers;
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string dx, dy, udx, udy;
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xdo_t* xdo;
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virtual void on_update() = 0;
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virtual void on_begin() = 0;
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virtual void on_end() = 0;
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swipe_gesture(): xdo(xdo_new(NULL)) {}
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~swipe_gesture() {xdo_free(xdo);}
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};
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const char* const command_map[] = {
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"left 3",
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"left 4",
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"right 3",
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"right 4",
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"up 3",
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"up 4",
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"down 3",
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"down 4"
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};
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struct swipe_gesture_impl : swipe_gesture {
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int screen_num, ix, iy;
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float x, y, threshold_squared;
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int previous_gesture;
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const char** commands;
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swipe_gesture_impl(
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const float threshold,
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const char* left3 /* 000 */,
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const char* left4 /* 001 */,
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const char* right3 /* 010 */,
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const char* right4 /* 011 */,
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const char* up3 /* 100 */,
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const char* up4 /* 101 */,
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const char* down3 /* 110 */,
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const char* down4 /* 111 */
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): swipe_gesture(), threshold_squared(threshold*threshold) {
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commands = new const char*[8];
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commands[0] = left3;
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commands[1] = left4;
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commands[2] = right3;
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commands[3] = right4;
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commands[4] = up3;
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commands[5] = up4;
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commands[6] = down3;
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commands[7] = down4;
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}
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~swipe_gesture_impl() {
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delete[] commands;
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}
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void key(const char* cmd) const {
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xdo_send_keysequence_window(xdo, CURRENTWINDOW, cmd, 0);
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}
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void on_begin() override {
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xdo_get_mouse_location(xdo, &ix, &iy, &screen_num);
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previous_gesture = FRESH;
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x = 0;
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y = 0;
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}
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void on_update() override {
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x += stof(dx);
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y += stof(dy);
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// scale threshold to 1/10 when gesture is not fresh
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float scale = previous_gesture == FRESH
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? 1.00f
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: 0.01f; // square root of 1/10
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if (x*x + y*y > threshold_squared*scale) {
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int mask = 0;
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if (fingers[0] == '3') mask |= MSK_THREE_FINGERS; else
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if (fingers[0] == '4') mask |= MSK_FOUR_FINGERS;
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if (abs(x) > abs(y)) {
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mask |= MSK_HORIZONTAL;
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if (x < 0) mask |= MSK_NEGATIVE;
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else mask |= MSK_POSITIVE;
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} else {
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mask |= MSK_VERTICAL;
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if (y < 0) mask |= MSK_NEGATIVE;
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else mask |= MSK_POSITIVE;
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}
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// send command on fresh OR opposite gesture
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if (previous_gesture == FRESH or previous_gesture == OPPOSITE) {
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x = y = 0;
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previous_gesture = mask;
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cout << "SWIPE " << command_map[mask] << endl;
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key(commands[mask]);
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}
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}
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}
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void on_end() override {
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}
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};
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// path services
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namespace service {
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// get the full path of the .conf file
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const char* conf_filename() {
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return CONFIG;
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}
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// get the full path of the .desktop file associated
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// with the autostart feature
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string autostart_filename() {
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static string *filename = NULL;
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if (filename == NULL) {
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const char* xdg_config = getenv("XDG_CONFIG_HOME");
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string config(
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xdg_config == NULL
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? string(getenv("HOME")) + "/.config"
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: xdg_config
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);
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filename = new string(config
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+ "/autostart/comfortable-swipe.desktop");
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}
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return *filename;
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}
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}
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namespace service {
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// process regex at compile time
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const regex gesture_begin(util::GESTURE_SWIPE_BEGIN_REGEX_PATTERN);
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const regex gesture_update(util::GESTURE_SWIPE_UPDATE_REGEX_PATTERN);
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const regex gesture_end(util::GESTURE_SWIPE_END_REGEX_PATTERN);
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// parses output from libinput debug-events
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void buffer() {
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int c = clock();
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// check first if $user
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ios::sync_with_stdio(false);
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cin.tie(0); cout.tie(0);
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// read config file
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auto config = util::read_config_file(conf_filename());
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// initialize gesture handler
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swipe_gesture_impl swipe(
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config.count("threshold") ? stof(config["threshold"]) : 0.0,
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config["left3"].c_str(),
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config["left4"].c_str(),
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config["right3"].c_str(),
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config["right4"].c_str(),
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config["up3"].c_str(),
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config["up4"].c_str(),
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config["down3"].c_str(),
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config["down4"].c_str()
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);
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// start reading lines from input one by one
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static const int MAX_LINE_LENGTH = 256;
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static char data[MAX_LINE_LENGTH];
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static cmatch matches;
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bool flag_begin = false;
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while (fgets_unlocked(data, MAX_LINE_LENGTH, stdin) != NULL) {
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if (!flag_begin) {
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if (regex_match(data, matches, gesture_begin)) {
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swipe.fingers = matches[1];
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swipe.on_begin();
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flag_begin = true;
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}
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} else {
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if (regex_match(data, matches, gesture_update)) {
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swipe.fingers = matches[1];
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swipe.dx = matches[2];
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swipe.dy = matches[3];
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swipe.udx = matches[4];
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swipe.udy = matches[5];
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swipe.on_update();
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} else if (regex_match(data, matches, gesture_end)) {
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swipe.fingers = matches[1];
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swipe.on_end();
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flag_begin = false;
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}
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}
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}
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}
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// starts service
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void start() {
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int x = system("stdbuf -oL -e0 libinput debug-events | " PROGRAM " buffer");
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}
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// stops service
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void stop() {
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// kill all comfortable-swipe, except self
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char* buffer = new char[20];
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FILE* pipe = popen("pgrep -f comfortable-swipe", "r");
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if (!pipe) throw std::runtime_error("stop command failed");
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string kill = "kill";
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while (!feof(pipe)) {
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if (fgets(buffer, 20, pipe) != NULL) {
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int pid = atoi(buffer);
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if (pid != getpid()) {
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kill += " " + to_string(pid);
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}
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}
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}
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int result = system(kill.data());
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delete[] buffer;
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pclose(pipe);
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}
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// stops then starts service
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void restart() {
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service::stop();
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service::start();
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}
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// toggle automatically start application on startup
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void autostart() {
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cstr path = autostart_filename();
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if (ifstream(path.data()).good()) {
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// file found, delete it
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if (remove(path.data()) != 0)
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cerr << "Error: failed to switch off autostart. "
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<< "Maybe the autostart file is in use?"
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<< endl;
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else
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cout << "Autostart switched off" << endl;
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} else {
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// file not found, create it
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int result = system(("mkdir -p $(dirname " + path + ")").data());
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ofstream fout(path.data());
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if (result != 0 || !fout.good())
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cerr << "Error: failed to switch on autostart. "
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<< "Are you sure you have the permissions?"
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<< endl;
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else {
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fout <<
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"[Desktop Entry]\n"
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"Type=Application\n"
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"Exec=bash -c \"" PROGRAM " start\"\n"
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"Hidden=false\n"
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"NoDisplay=false\n"
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"X-GNOME-Autostart-enabled=true\n"
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"Name=Comfortable Swipe\n"
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"Comment=3 or 4 touchpad gestures\n";
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cout << "Autostart switched on" << endl;
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}
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}
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}
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// shows help
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void help() {
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puts("comfortable-swipe [start|stop|restart|autostart|buffer|help]");
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puts("");
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puts("start - starts 3/4-finger gesture service");
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puts("stop - stops 3/4-finger gesture service");
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puts("restart - stops then starts 3/4-finger gesture service");
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puts("autostart - automatically run on startup (toggleable)");
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puts("buffer - parses output of libinput debug-events");
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puts("help - shows the help dialog");
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puts("");
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printf("Configuration file can be found in %s", conf_filename());
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}
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}
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/* UTILITY FUNCTIONS */
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namespace util {
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/**
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* Regex pattern for the libinput entry for start of swipe.
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* Extracts one match for the number of fingers used during the swipe.
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*
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* eg. event15 GESTURE_SWIPE_BEGIN +34.33s 3
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* ^
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* fingers
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*/
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const char* GESTURE_SWIPE_BEGIN_REGEX_PATTERN =
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"^" // start of string
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"[ -]event\\d+" // event
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"\\s+GESTURE_SWIPE_BEGIN" // gesture
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"\\s+\\S+" // timestamp
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"\\s+(\\d+)" // fingers
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"\\s*$" // end of string
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;
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/**
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* Regex pattern for the libinput entry for the end of swipe.
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* Extracts one match for the number of fingers used during the swipe.
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*
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* eg. event15 GESTURE_SWIPE_END +35.03s 3
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* ^
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* fingers
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*/
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const char* GESTURE_SWIPE_END_REGEX_PATTERN =
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"^" // start of string
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"[ -]event\\d+" // event
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"\\s+GESTURE_SWIPE_END" // gesture
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"\\s+\\S+" // timestamp
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"\\s+(\\d+)" // fingers
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"\\s*$" // end of string
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;
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// matches signed decimal numbers (eg. "6.02" "-1.1")
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#define CF_NUMBER_REGEX "-?\\d+(?:\\.\\d+)"
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// matches and extracts a space-prefixed signed fraction (eg. "-3.00/ 5.12")
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#define CF_NUMBER_DIVISION "\\s*(" CF_NUMBER_REGEX ")/\\s*(" CF_NUMBER_REGEX ")"
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/**
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* Regex pattern for the libinput entry for during a swipe.
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* Extracts number of fingers used and the speed (normal and accelerated) of the swipe.
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*
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* eg. event15 GESTURE_SWIPE_UPDATE +34.70s 3 -0.12/ 4.99 (-0.33/13.50 unaccelerated)
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* ^ ^ ^ ^ ^
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* fingers dx dy udx udy
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*/
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|
||||||
const char* GESTURE_SWIPE_UPDATE_REGEX_PATTERN =
|
|
||||||
"^" // start of string
|
|
||||||
"[ -]event\\d+" // event
|
|
||||||
"\\s+GESTURE_SWIPE_UPDATE" // gesture
|
|
||||||
"\\s+\\S+" // timestamp
|
|
||||||
"\\s+(\\d+)" // fingers
|
|
||||||
"\\s+" CF_NUMBER_DIVISION // speed (dx/dy)
|
|
||||||
"\\s+\\(" CF_NUMBER_DIVISION "\\s+unaccelerated\\)" // unaccelerated speed (udx/udy)
|
|
||||||
"\\s*$" // end of string
|
|
||||||
;
|
|
||||||
|
|
||||||
// delete macros
|
|
||||||
#undef CF_NUMBER_DIVISION
|
|
||||||
#undef CF_NUMBER_EXTRACT
|
|
||||||
#undef CF_NUMBER_REGEX
|
|
||||||
|
|
||||||
/**
|
|
||||||
* A utility method for reading the config file.
|
|
||||||
*
|
|
||||||
* @param filename (const char*) the path of the config file.
|
|
||||||
*/
|
|
||||||
map<string, string> read_config_file(const char* filename) {
|
|
||||||
map<string, string> conf;
|
|
||||||
ifstream fin(filename);
|
|
||||||
if (!fin.is_open()) {
|
|
||||||
cerr << "file \"" << filename << "\" does not exist!" << endl;
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
static string line, token[2];
|
|
||||||
int line_number = 0;
|
|
||||||
while (getline(fin, line)) {
|
|
||||||
++line_number;
|
|
||||||
token[0].clear();
|
|
||||||
token[1].clear();
|
|
||||||
int length = line.length();
|
|
||||||
int equal_flag = 0;
|
|
||||||
for (int i = 0; i < length; ++i) {
|
|
||||||
if (line[i] == '#')
|
|
||||||
break;
|
|
||||||
if (line[i] == '=') {
|
|
||||||
if (++equal_flag > 1) {
|
|
||||||
cerr << "error in conf file " << filename << endl;
|
|
||||||
cerr << "multiple equal signs in line " << line_number << endl;
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
} else if (!isspace(line[i])) {
|
|
||||||
token[equal_flag].push_back(line[i]);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
// ignore empty lines
|
|
||||||
if (equal_flag == 0 && token[0].length() == 0)
|
|
||||||
continue;
|
|
||||||
if (equal_flag == 0) {
|
|
||||||
cerr << "error in conf file: " << filename << endl;
|
|
||||||
cerr << "equal sign expected in line " << line_number << endl;
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
if (equal_flag == 1 && token[1].length() > 0) {
|
|
||||||
conf[token[0]] = token[1];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return conf;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
@ -9,6 +9,10 @@ extern "C"
|
|||||||
#include <xdo.h> // xdo_t
|
#include <xdo.h> // xdo_t
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
namespace comfortable_swipe
|
namespace comfortable_swipe
|
||||||
{
|
{
|
||||||
namespace gesture
|
namespace gesture
|
||||||
@ -61,4 +65,8 @@ namespace comfortable_swipe
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
#endif /* __COMFORTABLE_SWIPE__gesture_swipe_gesture_h__ */
|
#endif /* __COMFORTABLE_SWIPE__gesture_swipe_gesture_h__ */
|
||||||
@ -1,4 +1,21 @@
|
|||||||
#!/bin/g++
|
/*
|
||||||
|
Comfortable Swipe
|
||||||
|
by Rico Tiongson
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
#ifndef __COMFORTABLE_SWIPE__
|
#ifndef __COMFORTABLE_SWIPE__
|
||||||
#define __COMFORTABLE_SWIPE__
|
#define __COMFORTABLE_SWIPE__
|
||||||
|
|
||||||
|
|||||||
@ -1,3 +1,21 @@
|
|||||||
|
/*
|
||||||
|
Comfortable Swipe
|
||||||
|
by Rico Tiongson
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
#ifndef __COMFORTABLE_SWIPE__index_hpp__
|
#ifndef __COMFORTABLE_SWIPE__index_hpp__
|
||||||
#define __COMFORTABLE_SWIPE__index_hpp__
|
#define __COMFORTABLE_SWIPE__index_hpp__
|
||||||
|
|
||||||
@ -14,9 +32,12 @@
|
|||||||
#include <string> // std::string
|
#include <string> // std::string
|
||||||
#include "gesture/swipe_gesture.h"
|
#include "gesture/swipe_gesture.h"
|
||||||
|
|
||||||
#ifdef __cplusplus
|
// other program header files
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
// allow function overloading
|
||||||
extern "C" {
|
extern "C" {
|
||||||
#endif /* __cplusplus */
|
#endif
|
||||||
|
|
||||||
namespace comfortable_swipe
|
namespace comfortable_swipe
|
||||||
{
|
{
|
||||||
@ -43,6 +64,6 @@ namespace comfortable_swipe
|
|||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
}
|
}
|
||||||
#endif /* __cplusplus */
|
#endif
|
||||||
|
|
||||||
#endif /* __COMFORTABLE_SWIPE__index_hpp__ */
|
#endif /* __COMFORTABLE_SWIPE__index_hpp__ */
|
||||||
@ -1,5 +1,5 @@
|
|||||||
#ifndef __COMFORTABLE_SWIPE__util_conf_filename__
|
#ifndef __COMFORTABLE_SWIPE__util_autostart_filename__
|
||||||
#define __COMFORTABLE_SWIPE__util_conf_filename__
|
#define __COMFORTABLE_SWIPE__util_autostart_filename__
|
||||||
|
|
||||||
#include <string> // std::string
|
#include <string> // std::string
|
||||||
#include <unistd.h> // getenv
|
#include <unistd.h> // getenv
|
||||||
@ -25,4 +25,4 @@ namespace comfortable_swipe::util
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
#endif /* __COMFORTABLE_SWIPE__util_conf_filename__ */
|
#endif /* __COMFORTABLE_SWIPE__util_autostart_filename__ */
|
||||||
|
|||||||
44
src/main.cpp
Normal file
44
src/main.cpp
Normal file
@ -0,0 +1,44 @@
|
|||||||
|
/*
|
||||||
|
Comfortable Swipe
|
||||||
|
by Rico Tiongson
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <string> // std::string
|
||||||
|
#include "comfortable_swipe/index.cpp"
|
||||||
|
|
||||||
|
/* MAIN DRIVER FUNCTION */
|
||||||
|
|
||||||
|
int main(int argc, char** args)
|
||||||
|
{
|
||||||
|
using namespace comfortable_swipe::service;
|
||||||
|
|
||||||
|
if (argc > 1)
|
||||||
|
{
|
||||||
|
std::string arg = args[1];
|
||||||
|
// select based on argument
|
||||||
|
if (arg == "start") start();
|
||||||
|
else if (arg == "stop") stop();
|
||||||
|
else if (arg == "restart") restart();
|
||||||
|
else if (arg == "buffer") buffer();
|
||||||
|
else if (arg == "autostart") autostart();
|
||||||
|
else help();
|
||||||
|
}
|
||||||
|
|
||||||
|
else
|
||||||
|
help();
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user