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1116
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1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
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2 // vim: sw=4:ts=8:sts=4
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3 #include <stdio.h>
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4 #include <stdlib.h>
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5 #include <string.h>
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6 #include <unistd.h>
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7 #include <fcntl.h>
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8 #include <poll.h>
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9 #include "mb_graph_engine.h"
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10 #include "mb_redraw_man.h"
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11 #include "mb_timer.h"
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12 #include "mb_cons_supp.h"
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13 #include "mb_backend.h"
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14 #include "mb_backend_utils.h"
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15 #include "config.h"
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16
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17 #define ERR -1
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18 #define OK 0
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19
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20 #define FALSE 0
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21 #define TRUE 1
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22
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23 #define ASSERT(x)
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24
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25 #define ONLY_MOUSE_MOVE_RAW 1
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26
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27 typedef int keysym;
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28
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29 static mb_timer_factory_t *_timer_factory = &tman_timer_factory;
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30
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31 /*! \ingroup console_kb
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32 * @{
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33 */
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34 struct _cons_kb_info {
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35 int kb_fd;
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36
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37 int keycode_min, keycode_max;
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38 int ksym_per_code;
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39 keysym *syms;
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40 subject_t *kbevents;
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41 observer_factory_t *observer_factory;
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42 };
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43 typedef struct _cons_kb_info cons_kb_info_t;
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44
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45 /* @} */
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46
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47 struct _cons_supp_runtime {
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48 MB_DISPLAY display;
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49
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50 mbe_surface_t *surface;
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51 mbe_t *cr;
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52 redraw_man_t *rdman;
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53 mb_img_ldr_t *img_ldr;
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54 int w, h;
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55
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56 cons_kb_info_t kbinfo;
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57 mb_IO_man_t *io_man;
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58 mb_timer_man_t *timer_man;
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59
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60 #ifndef ONLY_MOUSE_MOVE_RAW
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61 /* States */
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62 shape_t *last;
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63 #endif
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64
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65 /* For handle connection */
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66 int io_hdl;
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67
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68 /*
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69 * Following variables are used by handle_single_cons_event()
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70 */
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71 int last_evt_type; /* Type of last event */
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72 int ex1, ey1, ex2, ey2; /* Aggregate expose events */
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73 int mx, my; /* Position of last motion event */
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74 int mbut_state; /* Button state of last motion event */
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75 };
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76 typedef struct _cons_supp_runtime cons_supp_runtime_t;
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77
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78 static void _cons_supp_handle_cons_event(cons_supp_runtime_t *rt);
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79
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80 /*! \defgroup cons_supp_io IO manager for console.
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81 * @{
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82 */
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83 #define MAX_MONITORS 200
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84
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85 typedef struct {
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86 int type;
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87 int fd;
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88 mb_IO_cb_t cb;
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89 void *data;
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90 } monitor_t;
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91
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92 struct _cons_supp_IO_man {
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93 mb_IO_man_t io_man;
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94 monitor_t monitors[MAX_MONITORS];
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95 int n_monitor;
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96 };
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97
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98 static int _cons_supp_io_man_reg(struct _mb_IO_man *io_man,
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99 int fd, MB_IO_TYPE type,
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100 mb_IO_cb_t cb, void *data);
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101 static void _cons_supp_io_man_unreg(struct _mb_IO_man *io_man, int io_hdl);
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102 static mb_IO_man_t *_cons_supp_io_man_new(void);
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103 static void _cons_supp_io_man_free(mb_IO_man_t *io_man);
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104
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105 static mb_IO_factory_t _cons_supp_default_io_factory = {
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106 _cons_supp_io_man_new,
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107 _cons_supp_io_man_free
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108 };
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109 static mb_IO_factory_t *_io_factory = &_cons_supp_default_io_factory;
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110
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111 static struct _cons_supp_IO_man _default_io_man = {
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112 {_cons_supp_io_man_reg, _cons_supp_io_man_unreg},
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113 {}, /* monitors */
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114 0 /* n_monitor */
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115 };
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116
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117 static mb_IO_man_t *
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118 _cons_supp_io_man_new(void) {
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119 return (mb_IO_man_t *)&_default_io_man;
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120 }
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121
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122 static void
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123 _cons_supp_io_man_free(mb_IO_man_t *io_man) {
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124 }
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125
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126 static int
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127 _cons_supp_io_man_reg(struct _mb_IO_man *io_man,
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128 int fd, MB_IO_TYPE type, mb_IO_cb_t cb, void *data) {
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129 struct _cons_supp_IO_man *cmb_io_man = (struct _cons_supp_IO_man *)io_man;
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130 int i;
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131
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132 for(i = 0; i < cmb_io_man->n_monitor; i++) {
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133 if (cmb_io_man->monitors[i].type == MB_IO_DUMMY)
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134 break;
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135 }
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136 if (i == MAX_MONITORS)
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137 return ERR;
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138
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139 cmb_io_man->monitors[i].type = type;
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140 cmb_io_man->monitors[i].fd = fd;
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141 cmb_io_man->monitors[i].cb = cb;
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142 cmb_io_man->monitors[i].data = data;
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143 i++;
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144 if(i > cmb_io_man->n_monitor)
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145 cmb_io_man->n_monitor = i;
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146 return i - 1;
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147 }
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148
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149 static void
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150 _cons_supp_io_man_unreg(struct _mb_IO_man *io_man, int io_hdl) {
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151 struct _cons_supp_IO_man *cmb_io_man = (struct _cons_supp_IO_man *)io_man;
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152
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153 ASSERT(io_hdl < cmb_io_man->n_monitor);
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154 cmb_io_man->monitors[io_hdl].type = MB_IO_DUMMY;
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155 }
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156
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157 /*! \brief Handle connection coming data and timeout of timers.
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158 *
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159 */
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160 static void
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161 _cons_supp_event_loop(mb_rt_t *rt) {
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162 struct _cons_supp_runtime *cmb_rt = (struct _cons_supp_runtime *)rt;
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163 struct _cons_supp_IO_man *io_man =
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164 (struct _cons_supp_IO_man *)cmb_rt->io_man;
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165 mb_timer_man_t *timer_man = (mb_timer_man_t *)cmb_rt->timer_man;
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166 redraw_man_t *rdman;
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167 mb_tman_t *tman = tman_timer_man_get_tman(timer_man);
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168 mb_timeval_t now, tmo;
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169 struct timeval tv;
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170 fd_set rfds, wfds;
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171 int nfds = 0;
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172 int r, r1,i;
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173
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174 rdman = mb_runtime_rdman(rt);
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175 rdman_redraw_all(rdman);
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176
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177 _cons_supp_handle_cons_event(cmb_rt);
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178
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179 while(1) {
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180 FD_ZERO(&rfds);
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181 FD_ZERO(&wfds);
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182 for(i = 0; i < io_man->n_monitor; i++) {
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183 if(io_man->monitors[i].type == MB_IO_R ||
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184 io_man->monitors[i].type == MB_IO_RW) {
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185 FD_SET(io_man->monitors[i].fd, &rfds);
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186 nfds = MB_MAX(nfds, io_man->monitors[i].fd + 1);
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187 }
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188 if(io_man->monitors[i].type == MB_IO_W ||
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189 io_man->monitors[i].type == MB_IO_RW) {
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190 FD_SET(io_man->monitors[i].fd, &wfds);
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191 nfds = MB_MAX(nfds, io_man->monitors[i].fd + 1);
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192 }
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193 }
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194
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195 get_now(&now);
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196 r = mb_tman_next_timeout(tman, &now, &tmo);
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197
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198 if(r == 0) {
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199 tv.tv_sec = MB_TIMEVAL_SEC(&tmo);
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200 tv.tv_usec = MB_TIMEVAL_USEC(&tmo);
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201 r1 = select(nfds, &rfds, NULL, NULL, &tv);
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202 } else
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203 r1 = select(nfds, &rfds, NULL, NULL, NULL);
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204
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205 if(r1 == -1) {
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206 perror("select");
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207 break;
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208 }
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209
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210 if(r1 == 0) {
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211 get_now(&now);
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212 mb_tman_handle_timeout(tman, &now);
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213 rdman_redraw_changed(rdman);
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214 } else {
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215 for(i = 0; i < io_man->n_monitor; i++) {
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216 if(io_man->monitors[i].type == MB_IO_R ||
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217 io_man->monitors[i].type == MB_IO_RW) {
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218 if(FD_ISSET(io_man->monitors[i].fd, &rfds))
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219 io_man->monitors[i].cb(i, io_man->monitors[i].fd,
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220 MB_IO_R,
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221 io_man->monitors[i].data);
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222 }
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223 if(io_man->monitors[i].type == MB_IO_W ||
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224 io_man->monitors[i].type == MB_IO_RW) {
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225 if(FD_ISSET(io_man->monitors[i].fd, &wfds))
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226 io_man->monitors[i].cb(i, io_man->monitors[i].fd,
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227 MB_IO_W,
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228 io_man->monitors[i].data);
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229 }
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230 }
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231 }
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232 }
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233 }
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234
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235 /* @} */
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236
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237 /*! \defgroup console_kb Console Keyboard Handling
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238 *
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239 * Accept keyboard events from console and delivery it to
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240 * application through observer pattern. There is a subject,
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241 * per X-connection, for that.
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242 * @{
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243 */
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244 static int keycode2sym(cons_kb_info_t *kbinfo, unsigned int keycode) {
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245 /* TODO: implement keycode to key symbol translation */
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246 return 0;
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247 }
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248
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249 static int cons_kb_init(cons_kb_info_t *kbinfo, MB_DISPLAY display,
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250 redraw_man_t *rdman) {
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251 int n_syms;
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252 observer_factory_t *factory;
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253 int r;
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254
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255 /* TODO: set keycode_min, keycode_max and syms */
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256 if((int)display != -1)
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257 kbinfo->kb_fd = (int)display;
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258 else
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259 kbinfo->kb_fd = STDIN_FILENO;
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260
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261 factory = rdman_get_observer_factory(rdman);
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262 kbinfo->kbevents = subject_new(factory, kbinfo, OBJT_KB);
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263 if(kbinfo->kbevents == NULL)
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264 return ERR;
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265 /*! \todo Make sure observer_factory is still need. */
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266 kbinfo->observer_factory = factory;
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267
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268 return OK;
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269 }
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270
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271 static void cons_kb_destroy(cons_kb_info_t *kbinfo) {
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272 subject_free(kbinfo->kbevents);
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273 }
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274 /* @} */
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275
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276 /*! \brief Notify observers of the shape at specified
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277 * position for mouse event.
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278 *
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279 * Observers of parent shapes may be called if the subject is not
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280 * with SUBF_STOP_PROPAGATE flag. The subject of mouse event
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281 * for a shape is returned by sh_get_mouse_event_subject().
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282 */
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283 static void notify_coord_or_shape(redraw_man_t *rdman,
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284 mb_obj_t *obj,
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285 co_aix x, co_aix y, int etype,
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286 unsigned int state,
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287 unsigned int button) {
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288 mouse_event_t mouse_event;
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289 subject_t *subject;
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290
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291 mouse_event.event.type = etype;
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292 mouse_event.x = x;
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293 mouse_event.y = y;
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294 mouse_event.but_state = state;
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295 mouse_event.button = button;
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296
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297 if(IS_MBO_SHAPES(obj))
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298 subject = sh_get_mouse_event_subject((shape_t *)obj);
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299 else
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300 subject = coord_get_mouse_event((coord_t *)obj);
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301
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302 subject_notify(subject, (event_t *)&mouse_event);
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303 }
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304
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305 /*! \brief Handle keyboard event and maintain internal states.
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306 *
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307 * It keeps internal state in rt to improve performance.
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308 */
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309 static void
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310 handle_single_cons_event(cons_supp_runtime_t *rt) {
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311 /* TODO: handle keyboard and mouse events. */
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312 printf("handle_single_cons_event() will be implemented later\n");
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313 }
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314
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315 /*! \brief Call when no more event in an event iteration.
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316 *
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317 * No more event means event queue is emplty. This function will
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318 * perform some actions according current internal state.
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319 */
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320 static void
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321 no_more_event(cons_supp_runtime_t *rt) {
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322 }
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323
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324 /*! \brief Dispatch all console events in the queue.
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325 */
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326 static void _cons_supp_handle_cons_event(cons_supp_runtime_t *cmb_rt) {
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327 int console_fd = (int)cmb_rt->display;
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328 struct pollfd pfd = {console_fd, POLLIN, 0};
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329 int r;
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330
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331 while((r = poll(&pfd, 1, 0)) > 0) {
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332 handle_single_cons_event(cmb_rt);
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333 }
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334 no_more_event(cmb_rt);
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335 }
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336
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337 static void
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338 _cons_supp_handle_connection(int hdl, int fd, MB_IO_TYPE type, void *data) {
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339 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *)data;
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340
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341 _cons_supp_handle_cons_event(cmb_rt);
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342 }
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343
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344 /*! \brief Initialize a MadButterfy runtime for Xlib.
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345 *
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346 * This one is very like _cons_supp_init(), except it accepts a
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347 * cons_supp_runtime_t object initialized with a display connected to a X
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348 * server and an opened window.
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349 *
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350 * Following field of the cons_supp_runtime_t object should be initialized.
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351 * - w, h
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352 * - win
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353 * - display
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354 * - visual
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355 */
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356 static int
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357 _cons_supp_init_with_win_internal(cons_supp_runtime_t *cmb_rt) {
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358 mb_img_ldr_t *img_ldr;
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359 int w, h;
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360 int console_fd;
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361
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362 w = cmb_rt->w;
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363 h = cmb_rt->h;
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364
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365 mbe_init();
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366
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367 cmb_rt->surface =
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368 mbe_win_surface_create(cmb_rt->display, NULL,
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369 MB_IFMT_ARGB32, w, h);
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370
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371 cmb_rt->cr = mbe_create(cmb_rt->surface);
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372
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373 cmb_rt->rdman = (redraw_man_t *)malloc(sizeof(redraw_man_t));
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374 redraw_man_init(cmb_rt->rdman, cmb_rt->cr, NULL);
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375 cmb_rt->rdman->w = w;
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376 cmb_rt->rdman->h = h;
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377 /* FIXME: This is a wired loopback reference. This is inly
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378 * required when we need to get the cmb_rt->tman for the
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379 * animation. We should relocate the tman to the
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380 * redraw_man_t instead.
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381 */
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382 cmb_rt->rdman->rt = cmb_rt;
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383
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384 cmb_rt->io_man = mb_io_man_new(_io_factory);
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385 cmb_rt->timer_man = mb_timer_man_new(_timer_factory);
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386
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387 img_ldr = simple_mb_img_ldr_new("");
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388 cmb_rt->img_ldr = img_ldr;
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389 /*! \todo Remove rdman_set_img_ldr() */
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390 rdman_set_img_ldr(cmb_rt->rdman, img_ldr); /* this is ncessary? */
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391
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392 #ifndef ONLY_MOUSE_MOVE_RAW
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393 cmb_rt->last = NULL;
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394 #endif
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395
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396 cons_kb_init(&cmb_rt->kbinfo, cmb_rt->display, cmb_rt->rdman);
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397
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398 console_fd = (int)cmb_rt->display;
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399 cmb_rt->io_hdl = mb_io_man_reg(cmb_rt->io_man, console_fd,
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400 MB_IO_R,
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401 _cons_supp_handle_connection,
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402 cmb_rt);
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403
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404 return OK;
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405 }
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406
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407 /*! \brief Initialize a MadButterfy runtime for console.
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408 *
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409 * It setups a runtime environment to run MadButterfly with console.
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410 * Users should specify width and height of the opening window.
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411 *
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412 * \param display_name is actually the path to the console/input device.
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413 */
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414 static int _cons_supp_init(cons_supp_runtime_t *cmb_rt,
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415 const char *display_name,
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416 int w, int h) {
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417 int r;
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418 int console_fd;
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419
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420 memset(cmb_rt, 0, sizeof(cons_supp_runtime_t));
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421
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422 if(display_name == NULL || strlen(display_name) == 0)
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423 console_fd = STDIN_FILENO;
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424 else {
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425 console_fd = open(display_name, O_RDONLY);
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426 if(console_fd == -1)
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427 return ERR;
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428 }
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429
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430 cmb_rt->display = (MB_DISPLAY)console_fd;
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431 cmb_rt->w = w;
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432 cmb_rt->h = h;
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433
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434 r = _cons_supp_init_with_win_internal(cmb_rt);
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435
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436 return r;
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437 }
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438
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439 /*! \brief Initialize a MadButterfly runtime for a window of console.
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440 *
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441 * This function is equivalent to _cons_supp_init() with fixed width
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442 * and height. Since, there is no window for console.
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443 *
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444 * Runtimes initialized with this function should be destroyed with
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445 * cons_supp_destroy_keep_win().
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446 *
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447 * \param display is actually a file descriptor of console (input device).
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448 */
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449 static int
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450 _cons_supp_init_with_win(cons_supp_runtime_t *cmb_rt,
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451 MB_DISPLAY display, MB_WINDOW win) {
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452 int r;
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453
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454 memset(cmb_rt, 0, sizeof(cons_supp_runtime_t));
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455
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456 cmb_rt->display = display;
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457 cmb_rt->w = 800;
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458 cmb_rt->h = 600;
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459
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460 r = _cons_supp_init_with_win_internal(cmb_rt);
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461
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462 return r;
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463 }
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464
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465 static void cons_supp_destroy_keep_win(cons_supp_runtime_t *cmb_rt);
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466
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467 static void cons_supp_destroy(cons_supp_runtime_t *cmb_rt) {
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468 int console_fd = cmb_rt = (int)cmb_rt->display;
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469
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470 close(console_fd);
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471 cons_supp_destroy_keep_win(cmb_rt);
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472 }
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473
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474 /*! \brief Destroy a MadButterfly runtime initialized with
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475 * _cons_supp_init_with_win().
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476 *
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477 * Destroying a runtime with this function prevent the window and
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478 * display associated with the runtime being closed.
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479 */
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480 static void
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481 cons_supp_destroy_keep_win(cons_supp_runtime_t *cmb_rt) {
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482 if(cmb_rt->rdman) {
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483 redraw_man_destroy(cmb_rt->rdman);
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484 free(cmb_rt->rdman);
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485 }
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486
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487 if(cmb_rt->io_hdl)
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488 mb_io_man_unreg(cmb_rt->io_man, cmb_rt->io_hdl);
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489
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490 if(cmb_rt->io_man)
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491 mb_io_man_free(_io_factory, cmb_rt->io_man);
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492 if(cmb_rt->timer_man)
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493 mb_timer_man_free(_timer_factory, cmb_rt->timer_man);
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494
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495 if(cmb_rt->img_ldr)
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496 MB_IMG_LDR_FREE(cmb_rt->img_ldr);
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497
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498 if(cmb_rt->cr)
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499 mbe_destroy(cmb_rt->cr);
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500
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501 if(cmb_rt->surface)
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502 mbe_surface_destroy(cmb_rt->surface);
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503
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504 cons_kb_destroy(&cmb_rt->kbinfo);
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505 }
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506
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507 static mb_rt_t *
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508 _cons_supp_new(const char *display_name, int w, int h) {
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509 cons_supp_runtime_t *rt;
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510 int r;
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511
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512 rt = O_ALLOC(cons_supp_runtime_t);
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513 if(rt == NULL)
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514 return NULL;
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515
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516 r = _cons_supp_init(rt, display_name, w, h);
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517 if(r != OK) {
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518 free(rt);
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519 return NULL;
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520 }
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521
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522 return (mb_rt_t *)rt;
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523 }
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524
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525 /*! \brief Create a new runtime for existed window for X.
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526 *
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527 * The object returned by this function must be free with
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528 * _cons_supp_free_keep_win() to prevent the window from closed.
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529 */
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530 static mb_rt_t *
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531 _cons_supp_new_with_win(MB_DISPLAY display, MB_WINDOW win) {
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532 cons_supp_runtime_t *rt;
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533 int r;
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534
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535 rt = O_ALLOC(cons_supp_runtime_t);
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536 if(rt == NULL)
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537 return NULL;
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538
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539 r = _cons_supp_init_with_win(rt, display, win);
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540 if(r != OK) {
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541 free(rt);
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542 return NULL;
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543 }
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544
|
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545 return (mb_rt_t *)rt;
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546 }
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547
|
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548 static void
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549 _cons_supp_free(mb_rt_t *rt) {
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|
550 cons_supp_destroy((cons_supp_runtime_t *) rt);
|
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|
551 free(rt);
|
|
|
552 }
|
|
|
553
|
|
|
554 /*! \brief Free runtime created with _cons_supp_new_with_win().
|
|
|
555 */
|
|
|
556 static void
|
|
|
557 _cons_supp_free_keep_win(mb_rt_t *rt) {
|
|
|
558 cons_supp_destroy_keep_win((cons_supp_runtime_t *) rt);
|
|
|
559 free(rt);
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|
|
560 }
|
|
|
561
|
|
|
562 static subject_t *
|
|
|
563 _cons_supp_kbevents(mb_rt_t *rt) {
|
|
|
564 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *) rt;
|
|
|
565 return cmb_rt->kbinfo.kbevents;
|
|
|
566 }
|
|
|
567
|
|
|
568 static redraw_man_t *
|
|
|
569 _cons_supp_rdman(mb_rt_t *rt) {
|
|
|
570 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *) rt;
|
|
|
571 return cmb_rt->rdman;
|
|
|
572 }
|
|
|
573
|
|
|
574 static mb_timer_man_t *
|
|
|
575 _cons_supp_timer_man(mb_rt_t *rt) {
|
|
|
576 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *) rt;
|
|
|
577 return cmb_rt->timer_man;
|
|
|
578 }
|
|
|
579
|
|
|
580 static observer_factory_t *
|
|
|
581 _cons_supp_observer_factory(mb_rt_t *rt) {
|
|
|
582 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *) rt;
|
|
|
583 observer_factory_t *factory;
|
|
|
584
|
|
|
585 factory = rdman_get_observer_factory(cmb_rt->rdman);
|
|
|
586 return factory;
|
|
|
587 }
|
|
|
588
|
|
|
589 static mb_img_ldr_t *
|
|
|
590 _cons_supp_img_ldr(mb_rt_t *rt) {
|
|
|
591 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *) rt;
|
|
|
592 mb_img_ldr_t *img_ldr;
|
|
|
593
|
|
|
594 img_ldr = cmb_rt->img_ldr;
|
|
|
595
|
|
|
596 return img_ldr;
|
|
|
597 }
|
|
|
598
|
|
|
599 static int
|
|
|
600 _cons_supp_add_event(mb_rt_t *rt, int fd, MB_IO_TYPE type,
|
|
|
601 mb_IO_cb_t cb, void *data)
|
|
|
602 {
|
|
|
603 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *) rt;
|
|
|
604 mb_IO_man_t *io_man = cmb_rt->io_man;
|
|
|
605 int hdl;
|
|
|
606
|
|
|
607 hdl = mb_io_man_reg(io_man, fd, type, cb, data);
|
|
|
608 return hdl;
|
|
|
609 }
|
|
|
610
|
|
|
611 static void
|
|
|
612 _cons_supp_remove_event(mb_rt_t *rt, int hdl)
|
|
|
613 {
|
|
|
614 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *) rt;
|
|
|
615 mb_IO_man_t *io_man = cmb_rt->io_man;
|
|
|
616
|
|
|
617 mb_io_man_unreg(io_man, hdl);
|
|
|
618 }
|
|
|
619
|
|
|
620 static int
|
|
|
621 _cons_supp_flush(mb_rt_t *rt) {
|
|
|
622 cons_supp_runtime_t *cmb_rt = (cons_supp_runtime_t *)rt;
|
|
|
623
|
|
|
624 mbe_flush(cmb_rt->cr);
|
|
|
625 return OK;
|
|
|
626 }
|
|
|
627
|
|
|
628 static void
|
|
|
629 _cons_supp_reg_IO_factory(mb_IO_factory_t *io_factory) {
|
|
|
630 _io_factory = io_factory;
|
|
|
631 }
|
|
|
632
|
|
|
633 static void
|
|
|
634 _cons_supp_reg_timer_factory(mb_timer_factory_t *timer_factory) {
|
|
|
635 _timer_factory = timer_factory;
|
|
|
636 }
|
|
|
637
|
|
|
638 mb_backend_t mb_dfl_backend = { _cons_supp_new,
|
|
|
639 _cons_supp_new_with_win,
|
|
|
640
|
|
|
641 _cons_supp_free,
|
|
|
642 _cons_supp_free_keep_win,
|
|
|
643 _cons_supp_add_event,
|
|
|
644 _cons_supp_remove_event,
|
|
|
645 _cons_supp_event_loop,
|
|
|
646 _cons_supp_flush,
|
|
|
647
|
|
|
648 _cons_supp_kbevents,
|
|
|
649 _cons_supp_rdman,
|
|
|
650 _cons_supp_timer_man,
|
|
|
651 _cons_supp_observer_factory,
|
|
|
652 _cons_supp_img_ldr,
|
|
|
653
|
|
|
654 _cons_supp_reg_IO_factory,
|
|
|
655 _cons_supp_reg_timer_factory,
|
|
|
656 };
|
