diff options
| -rw-r--r-- | pdf/pdf_js_none.c | 22 | ||||
| -rw-r--r-- | pdf/pdf_jsimp.c | 408 | ||||
| -rw-r--r-- | win32/libmupdf.vcproj | 6 |
3 files changed, 23 insertions, 413 deletions
diff --git a/pdf/pdf_js_none.c b/pdf/pdf_js_none.c new file mode 100644 index 00000000..a85103e4 --- /dev/null +++ b/pdf/pdf_js_none.c @@ -0,0 +1,22 @@ +#include "fitz-internal.h" +#include "mupdf-internal.h" + + +pdf_js *pdf_new_js(pdf_document *doc) +{ + static int x; + + return (pdf_js *)&x; +} + +void pdf_drop_js(pdf_js *js) +{ +} + +void pdf_js_execute(pdf_js *js, char *code) +{ +} + +void pdf_js_execute_count(pdf_js *js, char *code, int count) +{ +} diff --git a/pdf/pdf_jsimp.c b/pdf/pdf_jsimp.c deleted file mode 100644 index e3433ee8..00000000 --- a/pdf/pdf_jsimp.c +++ /dev/null @@ -1,408 +0,0 @@ -/* - * This is a dummy JavaScript engine. It cheats by recognising the specific - * strings in calc.pdf, and hence will work only for that file. It is for - * testing only. - */ - - -#include "fitz-internal.h" -#include "mupdf-internal.h" - -enum -{ - FUNC_NONE, - FUNC_PLUS, - FUNC_MINUS, - FUNC_MULT, - FUNC_DIV -}; - -struct pdf_jsimp_s -{ - fz_context *ctx; - void *jsctx; - double accum; - double entry; - double multiplier; - double divisor; - int func; - pdf_jsimp_obj *jsthis; - pdf_jsimp_obj *display; - pdf_jsimp_obj *funcfield; -}; - -/* We need only a couple of specific methods for calc.pdf */ -struct pdf_jsimp_type_s -{ - pdf_jsimp_dtr *dtr; - pdf_jsimp_method *getField; - pdf_jsimp_getter *getValue; - pdf_jsimp_setter *setValue; -}; - -struct pdf_jsimp_obj_s -{ - pdf_jsimp_type *type; - void *obj; -}; - - -static double digit_button(pdf_jsimp *imp, int digit) -{ - imp->entry = imp->entry * imp->multiplier + digit / imp->divisor; - - if (imp->divisor >= 10) - { - imp->divisor = imp->divisor * 10; - } - else - { - imp->multiplier = 10; - } - - return imp->entry; -} - -static void assign_display_value(pdf_jsimp *imp, double val) -{ - fz_context *ctx = imp->ctx; - char valstr[256]; - pdf_jsimp_obj *valobj = NULL; - pdf_jsimp_obj *strarg = NULL; - - fz_var(valobj); - fz_var(strarg); - fz_try(ctx) - { - if (imp->display == NULL) - { - pdf_jsimp_obj *doc = imp->jsthis; - strarg = pdf_jsimp_fromString(imp, "Display"); - imp->display = doc->type->getField(imp->jsctx, doc->obj, 1, &strarg); - } - - snprintf(valstr, sizeof(valstr), "%.8f", val); - if (imp->display && imp->display->type->setValue) - { - valobj = pdf_jsimp_fromString(imp, valstr); - imp->display->type->setValue(imp->jsctx, imp->display->obj, valobj); - } - } - fz_always(ctx) - { - pdf_jsimp_drop_obj(imp, strarg); - pdf_jsimp_drop_obj(imp, valobj); - } - fz_catch(ctx) - { - fz_rethrow(ctx); - } -} - -static void assign_func_value(pdf_jsimp *imp, int val) -{ - fz_context *ctx = imp->ctx; - pdf_jsimp_obj *valobj = NULL; - pdf_jsimp_obj *strarg = NULL; - - fz_var(valobj); - fz_var(strarg); - fz_try(ctx) - { - if (imp->funcfield == NULL) - { - pdf_jsimp_obj *strarg = pdf_jsimp_fromString(imp, "Func"); - pdf_jsimp_obj *doc = imp->jsthis; - imp->funcfield = doc->type->getField(imp->jsctx, doc->obj, 1, &strarg); - } - - if (imp->funcfield && imp->funcfield->type->setValue) - { - switch(val) - { - case FUNC_NONE: - valobj = pdf_jsimp_fromString(imp, ""); - break; - case FUNC_MULT: - valobj = pdf_jsimp_fromString(imp, "MULT"); - break; - case FUNC_DIV: - valobj = pdf_jsimp_fromString(imp, "DIV"); - break; - case FUNC_PLUS: - valobj = pdf_jsimp_fromString(imp, "PLUS"); - break; - case FUNC_MINUS: - valobj = pdf_jsimp_fromString(imp, "MINUS"); - break; - } - - if (valobj) - imp->funcfield->type->setValue(imp->jsctx, imp->funcfield->obj, valobj); - } - } - fz_always(ctx) - { - pdf_jsimp_drop_obj(imp, strarg); - pdf_jsimp_drop_obj(imp, valobj); - } - fz_catch(ctx) - { - fz_rethrow(ctx); - } -} - -static void clear_entry(pdf_jsimp *imp) -{ - imp->entry = 0; - imp->multiplier = 1; - imp->divisor = 1; -} - -static void update_result(pdf_jsimp *imp) -{ - switch(imp->func) - { - case FUNC_PLUS: - imp->accum = imp->accum + imp->entry; - break; - case FUNC_MINUS: - imp->accum = imp->accum - imp->entry; - break; - case FUNC_MULT: - imp->accum = imp->accum * imp->entry; - break; - case FUNC_DIV: - if (imp->entry != 0) - imp->accum = imp->accum / imp->entry; - break; - } - - imp->func = FUNC_NONE; - assign_func_value(imp, FUNC_NONE); - clear_entry(imp); -} - -static void func_button(pdf_jsimp *imp, int func) -{ - if (imp->func != FUNC_NONE) - { - update_result(imp); - } - else - { - if (imp->entry != 0) - imp->accum = imp->entry; - - imp->func = func; - assign_func_value(imp, func); - clear_entry(imp); - } -} - -static void all_cancel(pdf_jsimp *imp) -{ - clear_entry(imp); - assign_display_value(imp, 0); - imp->accum = 0; - assign_func_value(imp, FUNC_NONE); -} - -pdf_jsimp *pdf_new_jsimp(fz_context *ctx, void *jsctx) -{ - pdf_jsimp *imp = fz_malloc_struct(ctx, pdf_jsimp); - - imp->ctx = ctx; - imp->jsctx = jsctx; - imp->accum = 0; - imp->entry = 0; - imp->divisor = 1; - imp->multiplier = 1; - - return imp; -} - -void pdf_drop_jsimp(pdf_jsimp *imp) -{ - if (imp) - { - fz_free(imp->ctx, imp); - } -} - -pdf_jsimp_type *pdf_jsimp_new_type(pdf_jsimp *imp, pdf_jsimp_dtr *dtr) -{ - pdf_jsimp_type *type = fz_malloc_struct(imp->ctx, pdf_jsimp_type); - type->dtr = dtr; - - return type; -} - -void pdf_jsimp_drop_type(pdf_jsimp *imp, pdf_jsimp_type *type) -{ - fz_free(imp->ctx, type); -} - -void pdf_jsimp_addmethod(pdf_jsimp *imp, pdf_jsimp_type *type, char *name, pdf_jsimp_method *meth) -{ - if (!strcmp(name, "getField")) - { - type->getField = meth; - } -} - -void pdf_jsimp_addproperty(pdf_jsimp *imp, pdf_jsimp_type *type, char *name, pdf_jsimp_getter *get, pdf_jsimp_setter *set) -{ - if (!strcmp(name, "value")) - { - type->getValue = get; - type->setValue = set; - } -} - -void pdf_jsimp_set_global_type(pdf_jsimp *imp, pdf_jsimp_type *type) -{ - imp->jsthis = pdf_jsimp_new_obj(imp, type, NULL); -} - -pdf_jsimp_obj *pdf_jsimp_new_obj(pdf_jsimp *imp, pdf_jsimp_type *type, void *natobj) -{ - pdf_jsimp_obj *obj = fz_malloc_struct(imp->ctx, pdf_jsimp_obj); - obj->type = type; - obj->obj = natobj; - - return obj; -} - -void pdf_jsimp_drop_obj(pdf_jsimp *imp, pdf_jsimp_obj *obj) -{ - if (obj) - { - if (obj->type) - { - if (obj->type->dtr) - obj->type->dtr(imp->jsctx, obj->obj); - } - else - { - /* It's a string */ - fz_free(imp->ctx, obj->obj); - } - - fz_free(imp->ctx, obj); - } -} - -void pdf_jsimp_set_this(pdf_jsimp *imp, pdf_jsimp_obj *obj) -{ - imp->jsthis = obj; -} - - -pdf_jsimp_obj *pdf_jsimp_fromString(pdf_jsimp *imp, char *str) -{ - /* Represent a string object as a pdf_jsimp_obj with a NULL type */ - pdf_jsimp_obj *obj = fz_malloc_struct(imp->ctx, pdf_jsimp_obj); - fz_try(imp->ctx) - { - obj->obj = fz_strdup(imp->ctx, str); - } - fz_catch(imp->ctx) - { - pdf_jsimp_drop_obj(imp, obj); - fz_rethrow(imp->ctx); - } - - return obj; -} - -char *pdf_jsimp_toString(pdf_jsimp *imp, pdf_jsimp_obj *obj) -{ - return (char *)(obj->type ? NULL : obj->obj); -} - -void pdf_jsimp_execute(pdf_jsimp *imp, char *code) -{ - if (!strcmp(code, "display.value = digit_button(0);")) - { - assign_display_value(imp, digit_button(imp, 0)); - } - else if (!strcmp(code, "display.value = digit_button(1);\r")) - { - assign_display_value(imp, digit_button(imp, 1)); - } - else if (!strcmp(code, "display.value = digit_button(2)")) - { - assign_display_value(imp, digit_button(imp, 2)); - } - else if (!strcmp(code, "display.value = digit_button(3)")) - { - assign_display_value(imp, digit_button(imp, 3)); - } - else if (!strcmp(code, "display.value = digit_button(4)")) - { - assign_display_value(imp, digit_button(imp, 4)); - } - else if (!strcmp(code, "display.value = digit_button(5)")) - { - assign_display_value(imp, digit_button(imp, 5)); - } - else if (!strcmp(code, "display.value = digit_button(6);")) - { - assign_display_value(imp, digit_button(imp, 6)); - } - else if (!strcmp(code, "display.value = digit_button(7);")) - { - assign_display_value(imp, digit_button(imp, 7)); - } - else if (!strcmp(code, "display.value = digit_button(8);")) - { - assign_display_value(imp, digit_button(imp, 8)); - } - else if (!strcmp(code, "display.value = digit_button(9);")) - { - assign_display_value(imp, digit_button(imp, 9)); - } - else if (!strcmp(code, "if (divisor == 1) {\r divisor = 10;\r multiplier = 1;\r }")) - { - if (imp->divisor == 1) - { - imp->divisor = 10; - imp->multiplier = 1; - } - } - else if (!strcmp(code, "all_cancel();")) - { - all_cancel(imp); - } - else if (!strcmp(code, "clear_entry();\rdisplay.value = 0;")) - { - clear_entry(imp); - assign_display_value(imp, 0); - } - else if (!strcmp(code, "func_button(\"MULT\");")) - { - func_button(imp, FUNC_MULT); - } - else if (!strcmp(code, "func_button(\"DIV\");")) - { - func_button(imp, FUNC_DIV); - } - else if (!strcmp(code, "func_button(\"PLUS\");")) - { - func_button(imp, FUNC_PLUS); - } - else if (!strcmp(code, "func_button(\"MINUS\");")) - { - func_button(imp, FUNC_MINUS); - } - else if (!strcmp(code, "update_result();\rdisplay.value = accum;")) - { - update_result(imp); - assign_display_value(imp, imp->accum); - } -} - -void pdf_jsimp_execute_count(pdf_jsimp *imp, char *code, int count) -{ -} diff --git a/win32/libmupdf.vcproj b/win32/libmupdf.vcproj index ec3a96b6..2bd67845 100644 --- a/win32/libmupdf.vcproj +++ b/win32/libmupdf.vcproj @@ -286,11 +286,7 @@ > </File> <File - RelativePath="..\pdf\pdf_js.c" - > - </File> - <File - RelativePath="..\pdf\pdf_jsimp.c" + RelativePath="..\pdf\pdf_js_none.c" > </File> <File |