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annotate molko-js/src/js-window.c @ 189:a5436e15898d

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molko-js: start Javascript bindings, continue #2503 @4h - Added basic API for the libcore library, - Added a window example.
author David Demelier <markand@malikania.fr>
date Fri, 06 Nov 2020 15:15:01 +0100
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children 633a25df450e
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a5436e15898d molko-js: start Javascript bindings, continue #2503 @4h
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1 /*
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2 * js-window.c -- basic window management (Javascript bindings)
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20
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21 #include <duktape.h>
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22
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23 #include <core/error.h>
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24 #include <core/window.h>
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25
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26 #include "js.h"
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27 #include "js-window.h"
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28
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29 static duk_ret_t
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30 js_window_new(duk_context *ctx)
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31 {
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32 if (!duk_is_constructor_call(ctx))
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33 duk_error(ctx, DUK_ERR_TYPE_ERROR, "Window must be new-constructed");
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34
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35 const char *str = duk_require_string(ctx, 0);
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36 unsigned int w = duk_require_int(ctx, 1);
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37 unsigned int h = duk_require_int(ctx, 2);
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38
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39 if (!window_open(str, w, h))
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40 duk_error(ctx, DUK_ERR_ERROR, "%s", error());
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41
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42 return 0;
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43 }
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44
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45 static duk_ret_t
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46 js_window_setCursor(duk_context *ctx)
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47 {
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48 enum window_cursor cursor = duk_require_int(ctx, 0);
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49
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50 if (cursor < 0 || cursor > WINDOW_CURSOR_LAST)
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51 duk_error(ctx, DUK_ERR_TYPE_ERROR, "invalid cursor type: %d", cursor);
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52
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53 window_set_cursor(cursor);
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54
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55 return 0;
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56 }
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57
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58 static const duk_number_list_entry cursors[] = {
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59 { "ARROW", WINDOW_CURSOR_ARROW },
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60 { "EDIT", WINDOW_CURSOR_EDIT },
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61 { "WAIT", WINDOW_CURSOR_WAIT },
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62 { "CROSS_HAIR", WINDOW_CURSOR_CROSSHAIR },
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63 { "SIZE", WINDOW_CURSOR_SIZE },
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64 { "NO", WINDOW_CURSOR_NO },
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65 { "HAND", WINDOW_CURSOR_HAND },
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66 { NULL, 0 }
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67 };
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68
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69 static const duk_function_list_entry methods[] = {
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70 { "setCursor", js_window_setCursor, 1 },
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71 { NULL, NULL, 0 }
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72 };
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73
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74 void
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75 js_window_load(struct js *js)
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76 {
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77 assert(js);
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78
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79 duk_push_global_object(js->handle);
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80 duk_get_prop_string(js->handle, -1, "Molko");
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81 duk_push_c_function(js->handle, js_window_new, 3);
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82 duk_push_object(js->handle);
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83 duk_put_function_list(js->handle, -1, methods);
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84 duk_put_prop_string(js->handle, -2, "prototype");
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85 duk_push_object(js->handle);
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86 duk_put_number_list(js->handle, -1, cursors);
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87 duk_put_prop_string(js->handle, -1, "Cursor");
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88 duk_put_prop_string(js->handle, -2, "Window");
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89 duk_pop_n(js->handle, 2);
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90 }