Mercurial > MadButterfly

annotate nodejs/observer.cc @ 880:ac3e8492ad74 abs_n_rel_center

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Formalize path data for MadButterfly. Inkscape and other editors would omit 'l' or 'L' after 'm' or 'M'. MadButterfly can not handle it, now. So, we work around it at SVG parser.
author Thinker K.F. Li <thinker@codemud.net>
date Sat, 25 Sep 2010 18:46:37 +0800
parents 586e50f82c1f
children 1993e5ae60aa
rev   line source
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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 <v8.h>
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4 #include "mbfly_njs.h"
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5
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6 extern "C" {
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7 #include <mb.h>
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8 #include <string.h>
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9 }
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10
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11 #ifndef ASSERT
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12 #define ASSERT(x)
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13 #endif
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14
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15 using namespace v8;
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16
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17 /*! \defgroup xnjsmb_observer JS binding for observer, subject and events
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18 * \ingroup xnjsmb
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19 *
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20 * @{
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21 */
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22
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23 struct xnjsmb_observer_data {
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24 Persistent<Function> func;
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25 Persistent<Context> ctx;
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26 };
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27
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28 static void
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29 event_handler(event_t *evt, void *arg);
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30
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31 static void
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32 xnjsmb_event_mod(Handle<Object> self, event_t *evt) {
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33 mouse_event_t *mevt;
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34 X_kb_event_t *xkbevt;
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35
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36 switch(evt->type) {
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37 case EVT_ANY:
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38 case EVT_MOUSE_OVER:
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39 case EVT_MOUSE_OUT:
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40 case EVT_MOUSE_MOVE:
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41 case EVT_MOUSE_BUT_PRESS:
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42 case EVT_MOUSE_BUT_RELEASE:
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43 mevt = (mouse_event_t *)evt;
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44 SET(self, "x", Integer::New(mevt->x));
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45 SET(self, "y", Integer::New(mevt->y));
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46 SET(self, "but_state", Integer::New(mevt->but_state));
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47 SET(self, "button", Integer::New(mevt->button));
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48 break;
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49
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50 case EVT_KB_PRESS:
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51 case EVT_KB_RELEASE:
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52 xkbevt = (X_kb_event_t *)evt;
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53 SET(self, "keycode", Integer::New(xkbevt->keycode));
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54 SET(self, "sym", Integer::New(xkbevt->sym));
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55 break;
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56
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57 case EVT_PROGM_COMPLETE:
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58 case EVT_RDMAN_REDRAW:
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59 case EVT_MONITOR_ADD:
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60 case EVT_MONITOR_REMOVE:
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61 case EVT_MONITOR_FREE:
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62 case EVT_MOUSE_MOVE_RAW:
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63 default:
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64 /* Not implemented. Do nothing. */
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65 break;
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66 }
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67 }
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68
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69 static observer_t *
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70 _subject_add_event_observer(subject_t *subject, int type,
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71 Handle<Function> func) {
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72 observer_t *observer;
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73 xnjsmb_observer_data *data;
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74 Handle<Context> ctx;
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75
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76 data = new xnjsmb_observer_data;
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77 if(data == NULL)
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78 return NULL;
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79 data->func = Persistent<Function>::New(func);
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80 ctx = Context::GetCurrent();
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81 data->ctx = Persistent<Context>::New(ctx);
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82 observer = subject_add_event_observer(subject, type,
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83 event_handler,
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84 data);
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85
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86 return observer;
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87 }
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88
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89 static void
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90 _subject_remove_observer(subject_t *subject, observer_t *observer) {
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91 xnjsmb_observer_data *data;
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92
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93 subject_remove_observer(subject, observer);
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94 data = (xnjsmb_observer_data *)observer->arg;
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95 delete data;
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96 }
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97
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98 static Handle<Value>
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99 xnjsmb_event_tgt_getter(Handle<Object> self, event_t *evt, const char **err) {
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100 Persistent<Object> *hdl;
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101
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102 hdl = (Persistent<Object> *)
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103 mb_prop_get(&((mb_obj_t *)evt->tgt->obj)->props,
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104 PROP_JSOBJ);
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105 return Local<Object>::New(*hdl);
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106 }
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107
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108 static void
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109 xnjsmb_event_tgt_setter(Handle<Object> self, event_t *evt,
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110 Handle<Value> value, const char **err) {
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111 *err = "Not implemented";
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112 }
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113
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114 static Handle<Value>
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115 xnjsmb_event_cur_tgt_getter(Handle<Object> self, event_t *evt,
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116 const char **err) {
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117 Persistent<Object> *hdl;
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118
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119 hdl = (Persistent<Object> *)
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120 mb_prop_get(&((mb_obj_t *)evt->cur_tgt->obj)->props,
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121 PROP_JSOBJ);
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122 return Local<Object>::New(*hdl);
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123 }
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124
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125 static void
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126 xnjsmb_event_cur_tgt_setter(Handle<Object> self, event_t *evt,
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127 Handle<Value> value, const char **err) {
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128 *err = "Not implemented";
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129 }
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130
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131 /* This is the part of the code generated by gen_v8_binding.m4 */
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132 #include "observer-inc.h"
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133
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134 static void
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135 event_handler(event_t *evt, void *arg) {
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136 xnjsmb_observer_data *data = (xnjsmb_observer_data *)arg;
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137 Handle<Value> evt_obj;
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138 Handle<Value> func_args[1];
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139 Handle<Value> r;
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140 Context::Scope context_scope(data->ctx);
32e1b8005403 Handle exception for event handler
Thinker K.F. Li <thinker@branda.to>
parents: 686
diff changeset
141 TryCatch trycatch;
651
aa52883534fc Code generated by generator can be built
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
142
656
38c720272dd5 Change prefix for the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 655
diff changeset
143 evt_obj = xnjsmb_auto_event_new(evt);
651
aa52883534fc Code generated by generator can be built
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
144 ASSERT(!evt_obj.IsEmpty());
aa52883534fc Code generated by generator can be built
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
145 func_args[0] = evt_obj;
698
32e1b8005403 Handle exception for event handler
Thinker K.F. Li <thinker@branda.to>
parents: 686
diff changeset
146 r = data->func->Call(data->ctx->Global(), 1, func_args);
32e1b8005403 Handle exception for event handler
Thinker K.F. Li <thinker@branda.to>
parents: 686
diff changeset
147 if(r.IsEmpty()) {
32e1b8005403 Handle exception for event handler
Thinker K.F. Li <thinker@branda.to>
parents: 686
diff changeset
148 Handle<Value> exception = trycatch.Exception();
32e1b8005403 Handle exception for event handler
Thinker K.F. Li <thinker@branda.to>
parents: 686
diff changeset
149 String::AsciiValue exc_str(exception);
32e1b8005403 Handle exception for event handler
Thinker K.F. Li <thinker@branda.to>
parents: 686
diff changeset
150 fprintf(stderr, "Exception: %s\n", *exc_str);
32e1b8005403 Handle exception for event handler
Thinker K.F. Li <thinker@branda.to>
parents: 686
diff changeset
151 }
651
aa52883534fc Code generated by generator can be built
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
152 }
aa52883534fc Code generated by generator can be built
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
153
676
f264b50c469c Bind subject of mouse_event to JS object of coord
Thinker K.F. Li <thinker@branda.to>
parents: 675
diff changeset
154 Handle<Value>
f264b50c469c Bind subject of mouse_event to JS object of coord
Thinker K.F. Li <thinker@branda.to>
parents: 675
diff changeset
155 export_xnjsmb_auto_subject_new(subject_t *subject) {
f264b50c469c Bind subject of mouse_event to JS object of coord
Thinker K.F. Li <thinker@branda.to>
parents: 675
diff changeset
156 Handle<Value> val;
822
586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 788
diff changeset
157
676
f264b50c469c Bind subject of mouse_event to JS object of coord
Thinker K.F. Li <thinker@branda.to>
parents: 675
diff changeset
158 val = xnjsmb_auto_subject_new(subject);
f264b50c469c Bind subject of mouse_event to JS object of coord
Thinker K.F. Li <thinker@branda.to>
parents: 675
diff changeset
159 return val;
f264b50c469c Bind subject of mouse_event to JS object of coord
Thinker K.F. Li <thinker@branda.to>
parents: 675
diff changeset
160 }
f264b50c469c Bind subject of mouse_event to JS object of coord
Thinker K.F. Li <thinker@branda.to>
parents: 675
diff changeset
161
658
62c2de99b03a Remove get_object() method for subject for js
Thinker K.F. Li <thinker@branda.to>
parents: 656
diff changeset
162 void
62c2de99b03a Remove get_object() method for subject for js
Thinker K.F. Li <thinker@branda.to>
parents: 656
diff changeset
163 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
164 xnjsmb_auto_observer_init();
fc29a343ce7c Track JS object with property store of objects
Thinker K.F. Li <thinker@branda.to>
parents: 658
diff changeset
165 xnjsmb_auto_subject_init();
fc29a343ce7c Track JS object with property store of objects
Thinker K.F. Li <thinker@branda.to>
parents: 658
diff changeset
166 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
167 }
686
ddce24029561 More doc
Thinker K.F. Li <thinker@branda.to>
parents: 679
diff changeset
168
ddce24029561 More doc
Thinker K.F. Li <thinker@branda.to>
parents: 679
diff changeset
169 /* @} */