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annotate nodejs/observer.cc @ 679:799c852b9065

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Extract event info from C object to JS object
author Thinker K.F. Li <thinker@branda.to>
date Fri, 06 Aug 2010 19:31:37 +0800
parents f264b50c469c
children ddce24029561
rev   line source
651
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1 #include <v8.h>
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2 #include "mbfly_njs.h"
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3
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4 extern "C" {
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5 #include <mb.h>
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6 #include <string.h>
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7 }
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8
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9 #ifndef ASSERT
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10 #define ASSERT(x)
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11 #endif
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12
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13 using namespace v8;
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14
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15 struct xnjsmb_observer_data {
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16 Persistent<Function> func;
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17 };
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18
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19 static void
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20 event_handler(event_t *evt, void *arg);
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21
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22 static void
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23 xnjsmb_event_mod(Handle<Object> self, event_t *evt) {
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24 mouse_event_t *mevt;
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25 X_kb_event_t *xkbevt;
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26
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27 switch(evt->type) {
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28 case EVT_ANY:
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29 case EVT_MOUSE_OVER:
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30 case EVT_MOUSE_OUT:
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31 case EVT_MOUSE_MOVE:
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32 case EVT_MOUSE_BUT_PRESS:
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33 case EVT_MOUSE_BUT_RELEASE:
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34 mevt = (mouse_event_t *)evt;
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35 SET(self, "x", Integer::New(mevt->x));
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36 SET(self, "y", Integer::New(mevt->y));
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37 SET(self, "but_state", Integer::New(mevt->but_state));
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38 SET(self, "button", Integer::New(mevt->button));
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39 break;
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40
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41 case EVT_KB_PRESS:
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42 case EVT_KB_RELEASE:
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43 xkbevt = (X_kb_event_t *)evt;
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44 SET(self, "keycode", Integer::New(xkbevt->keycode));
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45 SET(self, "sym", Integer::New(xkbevt->sym));
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46 break;
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47
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48 case EVT_PROGM_COMPLETE:
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49 case EVT_RDMAN_REDRAW:
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50 case EVT_MONITOR_ADD:
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51 case EVT_MONITOR_REMOVE:
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52 case EVT_MONITOR_FREE:
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53 case EVT_MOUSE_MOVE_RAW:
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54 default:
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55 /* Not implemented. Do nothing. */
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56 break;
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57 }
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58 }
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59
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60 static observer_t *
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61 _subject_add_event_observer(subject_t *subject, int type,
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62 Handle<Function> func) {
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63 observer_t *observer;
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64 xnjsmb_observer_data *data;
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65
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66 data = new xnjsmb_observer_data;
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67 if(data == NULL)
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68 return NULL;
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69 data->func = Persistent<Function>::New(func);
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70 observer = subject_add_event_observer(subject, type,
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71 event_handler,
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72 data);
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73
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74 return observer;
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75 }
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76
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77 static void
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78 _subject_remove_observer(subject_t *subject, observer_t *observer) {
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79 xnjsmb_observer_data *data;
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80
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81 subject_remove_observer(subject, observer);
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82 data = (xnjsmb_observer_data *)observer->arg;
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83 delete data;
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84 }
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85
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86 static Handle<Value>
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87 xnjsmb_event_tgt_getter(Handle<Object> self, event_t *evt, const char **err) {
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88 Persistent<Object> *hdl;
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89
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90 hdl = (Persistent<Object> *)
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91 mb_prop_get(&((mb_obj_t *)evt->tgt)->props,
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92 PROP_JSOBJ);
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93 return Local<Object>::New(*hdl);
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94 }
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95
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96 static void
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97 xnjsmb_event_tgt_setter(Handle<Object> self, event_t *evt,
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98 Handle<Value> value, const char **err) {
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99 *err = "Not implemented";
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100 }
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101
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102 static Handle<Value>
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103 xnjsmb_event_cur_tgt_getter(Handle<Object> self, event_t *evt,
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104 const char **err) {
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105 Persistent<Object> *hdl;
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106
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107 hdl = (Persistent<Object> *)
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108 mb_prop_get(&((mb_obj_t *)evt->cur_tgt)->props,
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109 PROP_JSOBJ);
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110 return Local<Object>::New(*hdl);
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111 }
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112
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113 static void
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114 xnjsmb_event_cur_tgt_setter(Handle<Object> self, event_t *evt,
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115 Handle<Value> value, const char **err) {
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116 *err = "Not implemented";
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117 }
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118
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119 /* This is the part of the code generated by gen_v8_binding.m4 */
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120 #include "observer-inc.h"
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121
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122 static void
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123 event_handler(event_t *evt, void *arg) {
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124 xnjsmb_observer_data *data = (xnjsmb_observer_data *)arg;
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125 Handle<Value> evt_obj;
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126 Handle<Value> func_args[1];
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127
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128 evt_obj = xnjsmb_auto_event_new(evt);
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129 ASSERT(!evt_obj.IsEmpty());
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130 func_args[0] = evt_obj;
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131 data->func->Call(Context::GetCurrent()->Global(), 1, func_args);
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132 }
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133
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134 Handle<Value>
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135 export_xnjsmb_auto_subject_new(subject_t *subject) {
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136 Handle<Value> val;
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137
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138 val = xnjsmb_auto_subject_new(subject);
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139 return val;
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140 }
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141
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142 void
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Thinker K.F. Li <thinker@branda.to>
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diff changeset
143 xnjsmb_observer_init(void) {
671
fc29a343ce7c Track JS object with property store of objects
Thinker K.F. Li <thinker@branda.to>
parents: 658
diff changeset
144 xnjsmb_auto_observer_init();
fc29a343ce7c Track JS object with property store of objects
Thinker K.F. Li <thinker@branda.to>
parents: 658
diff changeset
145 xnjsmb_auto_subject_init();
fc29a343ce7c Track JS object with property store of objects
Thinker K.F. Li <thinker@branda.to>
parents: 658
diff changeset
146 xnjsmb_auto_event_init();
658
62c2de99b03a Remove get_object() method for subject for js
Thinker K.F. Li <thinker@branda.to>
parents: 656
diff changeset
147 }