JS: Backport³ and more additions & fixes (#3961)

* JS: Fix file select for fbt launch js_app
* JS: badusb: Add numpad keys
  Co-authored-by: oldip <oldip@users.noreply.github.com>
* JS: badusb: Layout support
* JS: badusb: altPrint() and altPrintln()
  Co-authored-by: oldip <oldip@users.noreply.github.com>
* JS: badusb: quit()
* JS: serial: readAny()
* JS: serial: end()
* JS: serial: Auto disable expansion service
* JS: storage: Add example script
* JS: gui: text_input: Fix NULL ptr when no prop given
* JS: gui: text_input: Default text props
  Co-authored-by: xMasterX <xMasterX@users.noreply.github.com>
* JS: gui: byte_input
  Co-authored-by: xMasterX <xMasterX@users.noreply.github.com>
* JS: gui: file_picker
* JS: gui: viewDispatcher.currentView
* JS: gui: view.hasProperty()
* JS: gui: Add some missing typedefs comments
* JS: globals: Fix toString() with negative numbers
* JS: globals: parseInt()
  Co-authored-by: Spooks4576 <Spooks4576@users.noreply.github.com>
* JS: globals: toUpperCase() and toLowerCase()
  Co-authored-by: Spooks4576 <Spooks4576@users.noreply.github.com>
* JS: globals: Add some missing typedefs
* JS: Add example for string functions
  Co-authored-by: Spooks4576 <Spooks4576@users.noreply.github.com>
* JS: globals: __dirpath and __filepath
  Co-authored-by: jamisonderek <jamisonderek@users.noreply.github.com>
* JS: globals: load() typedef missing scope param
* JS: Add interactive REPL script example
* JS: Add missing icon for file picker
* JS: Rename to __filename and __dirname
* JS: Move toUpperCase() and toLowerCase() to string class
* JS: parseInt() refactor
* JS: Typedef base param for parseInt()
* Revert "JS: gui: view.hasProperty()"
  This reverts commit 1967ec06d4f2e9cafc4e18384ad370f7a7c44468.
* JS: Move toString() to Number class
* JS: Fix duplicate plugin files
  in plugins, `requires` is used to determine which app to distribute the .fal under `apps_data/appid/plugins`
* JS: math: Missing typedefs, use camelCase
* JS: badusb: layoutPath is optional in typedef
* Fix ASS scoping
* Rename mjs term prop type value
* Change load() description
* Enlarge buffers in default prop assign
* More checks for default data/text size
* Make PVS happy
* Fix icon symbol
* Update types for JS SDK
* toString() was moved to number class

Co-authored-by: oldip <oldip@users.noreply.github.com>
Co-authored-by: xMasterX <xMasterX@users.noreply.github.com>
Co-authored-by: Spooks4576 <Spooks4576@users.noreply.github.com>
Co-authored-by: jamisonderek <jamisonderek@users.noreply.github.com>
Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: あく <alleteam@gmail.com>

lib/mjs/mjs_exec.c

@@ -452,6 +452,12 @@ static int getprop_builtin_string(
     } else if(strcmp(name, "slice") == 0) {
         *res = mjs_mk_foreign_func(mjs, (mjs_func_ptr_t)mjs_string_slice);
         return 1;
+    } else if(strcmp(name, "toUpperCase") == 0) {
+        *res = mjs_mk_foreign_func(mjs, (mjs_func_ptr_t)mjs_string_to_upper_case);
+        return 1;
+    } else if(strcmp(name, "toLowerCase") == 0) {
+        *res = mjs_mk_foreign_func(mjs, (mjs_func_ptr_t)mjs_string_to_lower_case);
+        return 1;
     } else if(isnum) {
         /*
      * string subscript: return a new one-byte string if the index
@@ -469,6 +475,22 @@ static int getprop_builtin_string(
     return 0;
 }
 
+static int getprop_builtin_number(
+    struct mjs* mjs,
+    mjs_val_t val,
+    const char* name,
+    size_t name_len,
+    mjs_val_t* res) {
+    if(strcmp(name, "toString") == 0) {
+        *res = mjs_mk_foreign_func(mjs, (mjs_func_ptr_t)mjs_number_to_string);
+        return 1;
+    }
+
+    (void)val;
+    (void)name_len;
+    return 0;
+}
+
 static int getprop_builtin_array(
     struct mjs* mjs,
     mjs_val_t val,
@@ -583,6 +605,8 @@ static int getprop_builtin(struct mjs* mjs, mjs_val_t val, mjs_val_t name, mjs_v
         } else if(s != NULL && n == 5 && strncmp(s, "apply", n) == 0) {
             *res = mjs_mk_foreign_func(mjs, (mjs_func_ptr_t)mjs_apply_);
             handled = 1;
+        } else if(mjs_is_number(val)) {
+            handled = getprop_builtin_number(mjs, val, s, n, res);
         } else if(mjs_is_array(val)) {
             handled = getprop_builtin_array(mjs, val, s, n, res);
         } else if(mjs_is_foreign(val)) {

lib/mjs/mjs_primitive.c

@@ -6,6 +6,8 @@
 #include "mjs_core.h"
 #include "mjs_internal.h"
 #include "mjs_primitive.h"
+#include "mjs_string_public.h"
+#include "mjs_util.h"
 
 mjs_val_t mjs_mk_null(void) {
     return MJS_NULL;
@@ -158,3 +160,31 @@ MJS_PRIVATE void mjs_op_isnan(struct mjs* mjs) {
 
     mjs_return(mjs, ret);
 }
+
+MJS_PRIVATE void mjs_number_to_string(struct mjs* mjs) {
+    mjs_val_t ret = MJS_UNDEFINED;
+    mjs_val_t base_v = MJS_UNDEFINED;
+    int32_t base = 10;
+    int32_t num;
+
+    /* get number from `this` */
+    if(!mjs_check_arg(mjs, -1 /*this*/, "this", MJS_TYPE_NUMBER, NULL)) {
+        goto clean;
+    }
+    num = mjs_get_int32(mjs, mjs->vals.this_obj);
+
+    if(mjs_nargs(mjs) >= 1) {
+        /* get base from arg 0 */
+        if(!mjs_check_arg(mjs, 0, "base", MJS_TYPE_NUMBER, &base_v)) {
+            goto clean;
+        }
+        base = mjs_get_int(mjs, base_v);
+    }
+
+    char tmp_str[] = "-2147483648";
+    itoa(num, tmp_str, base);
+    ret = mjs_mk_string(mjs, tmp_str, ~0, true);
+
+clean:
+    mjs_return(mjs, ret);
+}

lib/mjs/mjs_primitive.h

@@ -34,6 +34,11 @@ MJS_PRIVATE void* get_ptr(mjs_val_t v);
  */
 MJS_PRIVATE void mjs_op_isnan(struct mjs* mjs);
 
+/*
+ * Implementation for JS Number.toString()
+ */
+MJS_PRIVATE void mjs_number_to_string(struct mjs* mjs);
+
 #if defined(__cplusplus)
 }
 #endif /* __cplusplus */

lib/mjs/mjs_string.c

@@ -286,6 +286,41 @@ MJS_PRIVATE mjs_val_t s_concat(struct mjs* mjs, mjs_val_t a, mjs_val_t b) {
     return res;
 }
 
+MJS_PRIVATE void mjs_string_to_case(struct mjs* mjs, bool upper) {
+    mjs_val_t ret = MJS_UNDEFINED;
+    size_t size;
+    const char* s = NULL;
+
+    /* get string from `this` */
+    if(!mjs_check_arg(mjs, -1 /*this*/, "this", MJS_TYPE_STRING, NULL)) {
+        goto clean;
+    }
+    s = mjs_get_string(mjs, &mjs->vals.this_obj, &size);
+
+    if(size == 0) {
+        ret = mjs_mk_string(mjs, "", 0, 1);
+        goto clean;
+    }
+
+    char* tmp = malloc(size);
+    for(size_t i = 0; i < size; i++) {
+        tmp[i] = upper ? toupper(s[i]) : tolower(s[i]);
+    }
+    ret = mjs_mk_string(mjs, tmp, size, 1);
+    free(tmp);
+
+clean:
+    mjs_return(mjs, ret);
+}
+
+MJS_PRIVATE void mjs_string_to_lower_case(struct mjs* mjs) {
+    mjs_string_to_case(mjs, false);
+}
+
+MJS_PRIVATE void mjs_string_to_upper_case(struct mjs* mjs) {
+    mjs_string_to_case(mjs, true);
+}
+
 MJS_PRIVATE void mjs_string_slice(struct mjs* mjs) {
     int nargs = mjs_nargs(mjs);
     mjs_val_t ret = mjs_mk_number(mjs, 0);

lib/mjs/mjs_string.h

@@ -33,6 +33,8 @@ MJS_PRIVATE void embed_string(
 
 MJS_PRIVATE void mjs_mkstr(struct mjs* mjs);
 
+MJS_PRIVATE void mjs_string_to_lower_case(struct mjs* mjs);
+MJS_PRIVATE void mjs_string_to_upper_case(struct mjs* mjs);
 MJS_PRIVATE void mjs_string_slice(struct mjs* mjs);
 MJS_PRIVATE void mjs_string_index_of(struct mjs* mjs);
 MJS_PRIVATE void mjs_string_char_code_at(struct mjs* mjs);