"""A code component.""" import re from typing import Dict, Literal, Optional, Union from reflex.components.component import Component from reflex.components.forms import Button, color_mode_cond from reflex.components.layout import Box from reflex.components.libs.chakra import ( ChakraComponent, ) from reflex.components.media import Icon from reflex.event import set_clipboard from reflex.style import Style from reflex.utils import format, imports from reflex.utils.imports import ImportVar from reflex.vars import Var LiteralCodeBlockTheme = Literal[ "a11y-dark", "atom-dark", "cb", "coldark-cold", "coldark-dark", "coy", "coy-without-shadows", "darcula", "dark", "dracula", "duotone-dark", "duotone-earth", "duotone-forest", "duotone-light", "duotone-sea", "duotone-space", "funky", "ghcolors", "gruvbox-dark", "gruvbox-light", "holi-theme", "hopscotch", "light", # not present in react-syntax-highlighter styles "lucario", "material-dark", "material-light", "material-oceanic", "night-owl", "nord", "okaidia", "one-dark", "one-light", "pojoaque", "prism", "shades-of-purple", "solarized-dark-atom", "solarizedlight", "synthwave84", "tomorrow", "twilight", "vs", "vs-dark", "vsc-dark-plus", "xonokai", "z-touch", ] LiteralCodeLanguage = Literal[ "abap", "abnf", "actionscript", "ada", "agda", "al", "antlr4", "apacheconf", "apex", "apl", "applescript", "aql", "arduino", "arff", "asciidoc", "asm6502", "asmatmel", "aspnet", "autohotkey", "autoit", "avisynth", "avro-idl", "bash", "basic", "batch", "bbcode", "bicep", "birb", "bison", "bnf", "brainfuck", "brightscript", "bro", "bsl", "c", "cfscript", "chaiscript", "cil", "clike", "clojure", "cmake", "cobol", "coffeescript", "concurnas", "coq", "core", "cpp", "crystal", "csharp", "cshtml", "csp", "css", "css-extras", "csv", "cypher", "d", "dart", "dataweave", "dax", "dhall", "diff", "django", "dns-zone-file", "docker", "dot", "ebnf", "editorconfig", "eiffel", "ejs", "elixir", "elm", "erb", "erlang", "etlua", "excel-formula", "factor", "false", "firestore-security-rules", "flow", "fortran", "fsharp", "ftl", "gap", "gcode", "gdscript", "gedcom", "gherkin", "git", "glsl", "gml", "gn", "go", "go-module", "graphql", "groovy", "haml", "handlebars", "haskell", "haxe", "hcl", "hlsl", "hoon", "hpkp", "hsts", "http", "ichigojam", "icon", "icu-message-format", "idris", "iecst", "ignore", "index", "inform7", "ini", "io", "j", "java", "javadoc", "javadoclike", "javascript", "javastacktrace", "jexl", "jolie", "jq", "js-extras", "js-templates", "jsdoc", "json", "json5", "jsonp", "jsstacktrace", "jsx", "julia", "keepalived", "keyman", "kotlin", "kumir", "kusto", "latex", "latte", "less", "lilypond", "liquid", "lisp", "livescript", "llvm", "log", "lolcode", "lua", "magma", "makefile", "markdown", "markup", "markup-templating", "matlab", "maxscript", "mel", "mermaid", "mizar", "mongodb", "monkey", "moonscript", "n1ql", "n4js", "nand2tetris-hdl", "naniscript", "nasm", "neon", "nevod", "nginx", "nim", "nix", "nsis", "objectivec", "ocaml", "opencl", "openqasm", "oz", "parigp", "parser", "pascal", "pascaligo", "pcaxis", "peoplecode", "perl", "php", "php-extras", "phpdoc", "plsql", "powerquery", "powershell", "processing", "prolog", "promql", "properties", "protobuf", "psl", "pug", "puppet", "pure", "purebasic", "purescript", "python", "q", "qml", "qore", "qsharp", "r", "racket", "reason", "regex", "rego", "renpy", "rest", "rip", "roboconf", "robotframework", "ruby", "rust", "sas", "sass", "scala", "scheme", "scss", "shell-session", "smali", "smalltalk", "smarty", "sml", "solidity", "solution-file", "soy", "sparql", "splunk-spl", "sqf", "sql", "squirrel", "stan", "stylus", "swift", "systemd", "t4-cs", "t4-templating", "t4-vb", "tap", "tcl", "textile", "toml", "tremor", "tsx", "tt2", "turtle", "twig", "typescript", "typoscript", "unrealscript", "uorazor", "uri", "v", "vala", "vbnet", "velocity", "verilog", "vhdl", "vim", "visual-basic", "warpscript", "wasm", "web-idl", "wiki", "wolfram", "wren", "xeora", "xml-doc", "xojo", "xquery", "yaml", "yang", "zig", ] class CodeBlock(Component): """A code block.""" library = "react-syntax-highlighter@15.5.0" tag = "PrismAsyncLight" alias = "SyntaxHighlighter" # The theme to use ("light" or "dark"). theme: Var[LiteralCodeBlockTheme] = "one-light" # type: ignore # The language to use. language: Var[LiteralCodeLanguage] = "python" # type: ignore # The code to display. code: Var[str] # If this is enabled line numbers will be shown next to the code block. show_line_numbers: Var[bool] # The starting line number to use. starting_line_number: Var[int] # Whether to wrap long lines. wrap_long_lines: Var[bool] # A custom style for the code block. custom_style: Dict[str, str] = {} # Props passed down to the code tag. code_tag_props: Var[Dict[str, str]] def _get_imports(self) -> imports.ImportDict: merged_imports = super()._get_imports() # Get all themes from a cond literal themes = re.findall(r"`(.*?)`", self.theme._var_name) if not themes: themes = [self.theme._var_name] merged_imports = imports.merge_imports( merged_imports, { f"react-syntax-highlighter/dist/cjs/styles/prism/{theme}": { ImportVar( tag=format.to_camel_case(theme), is_default=True, install=False, ) } for theme in themes }, ) if ( self.language is not None and self.language._var_name in LiteralCodeLanguage.__args__ # type: ignore ): merged_imports = imports.merge_imports( merged_imports, { f"react-syntax-highlighter/dist/cjs/languages/prism/{self.language._var_name}": { ImportVar( tag=format.to_camel_case(self.language._var_name), is_default=True, install=False, ) } }, ) return merged_imports def _get_custom_code(self) -> Optional[str]: if ( self.language is not None and self.language._var_name in LiteralCodeLanguage.__args__ # type: ignore ): return f"{self.alias}.registerLanguage('{self.language._var_name}', {format.to_camel_case(self.language._var_name)})" @classmethod def create( cls, *children, can_copy: Optional[bool] = False, copy_button: Optional[Union[bool, Component]] = None, **props, ): """Create a text component. Args: *children: The children of the component. can_copy: Whether a copy button should appears. copy_button: A custom copy button to override the default one. **props: The props to pass to the component. Returns: The text component. """ # This component handles style in a special prop. custom_style = props.pop("custom_style", {}) if "theme" not in props: # Default color scheme responds to global color mode. props["theme"] = color_mode_cond(light="one-light", dark="one-dark") # react-syntax-highlighter doesnt have an explicit "light" or "dark" theme so we use one-light and one-dark # themes respectively to ensure code compatibility. if "theme" in props and not isinstance(props["theme"], Var): props["theme"] = ( "one-light" if props["theme"] == "light" else "one-dark" if props["theme"] == "dark" else props["theme"] ) if can_copy: code = children[0] copy_button = ( # type: ignore copy_button if copy_button is not None else Button.create( Icon.create(tag="copy"), on_click=set_clipboard(code), style=Style({"position": "absolute", "top": "0.5em", "right": "0"}), ) ) custom_style.update({"padding": "1em 3.2em 1em 1em"}) else: copy_button = None # Transfer style props to the custom style prop. for key, value in props.items(): if key not in cls.get_fields(): custom_style[key] = value # Carry the children (code) via props if children: props["code"] = children[0] if not isinstance(props["code"], Var): props["code"] = Var.create(props["code"], _var_is_string=True) # Create the component. code_block = super().create( **props, custom_style=Style(custom_style), ) if copy_button: return Box.create(code_block, copy_button, position="relative") else: return code_block def _add_style(self, style): self.custom_style.update(style) # type: ignore def _render(self): out = super()._render() predicate, qmark, value = self.theme._var_name.partition("?") out.add_props( style=Var.create( format.to_camel_case(f"{predicate}{qmark}{value.replace('`', '')}"), _var_is_local=False, ) ).remove_props("theme", "code") if self.code is not None: out.special_props.add(Var.create_safe(f"children={str(self.code)}")) return out class Code(ChakraComponent): """Used to display inline code.""" tag = "Code"