rnentjes/kotlin-css-generator
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rnentjes
2020-02-10 19:31:44 +01:00
commit 1b83f88c8f
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.gitignore vendored Normal file
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.gradle
build
.idea

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build.gradle.kts Normal file
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plugins {
kotlin("multiplatform") version "1.3.70-eap-184"
}
group = "nl.astraeus"
version = "0.1.0-SNAPSHOT"
repositories {
maven { setUrl("https://dl.bintray.com/kotlin/kotlin-eap") }
mavenCentral()
}
kotlin {
/* Targets configuration omitted.
* To find out how to configure the targets, please follow the link:
* https://kotlinlang.org/docs/reference/building-mpp-with-gradle.html#setting-up-targets */
jvm()
js {
}
sourceSets {
val commonMain by getting {
dependencies {
implementation(kotlin("stdlib-common"))
}
}
val commonTest by getting {
dependencies {
implementation(kotlin("test-common"))
implementation(kotlin("test-annotations-common"))
}
}
val jsMain by getting {
dependencies {
implementation(kotlin("stdlib-js"))
}
}
val jsTest by getting {
dependencies {
implementation(kotlin("test-js"))
implementation(kotlin("test-annotations-js"))
}
}
val jvmMain by getting {
dependencies {
implementation(kotlin("stdlib-jdk8"))
}
}
}
}

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gradle.properties Normal file
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kotlin.code.style=official

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gradle/wrapper/gradle-wrapper.jar vendored Normal file
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gradle/wrapper/gradle-wrapper.properties vendored Normal file
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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gradlew vendored Executable file
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#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=`expr $i + 1`
done
case $i in
0) set -- ;;
1) set -- "$args0" ;;
2) set -- "$args0" "$args1" ;;
3) set -- "$args0" "$args1" "$args2" ;;
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=`save "$@"`
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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settings.gradle.kts Normal file
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pluginManagement {
repositories {
maven { setUrl("https://dl.bintray.com/kotlin/kotlin-eap") }
mavenCentral()
maven { setUrl("https://plugins.gradle.org/m2/") }
}
}
rootProject.name = "kotlin-css-generator"

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src/commonMain/kotlin/nl/astraeus/css/Color.kt Normal file
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package nl.astraeus.css
fun rgb(red: Int, green: Int, blue: Int): Color = RGBColor(red, green, blue)
fun rgba(red: Int, green: Int, blue: Int, alpha: Double): Color = RGBAColor(red, green, blue, alpha)
fun hsl(hue: Int, saturation: Int, lightness: Int): Color = HSLColor(hue, saturation, lightness)
fun hsla(hue: Int, saturation: Int, lightness: Int, alpha: Double): Color = HSLAColor(hue, saturation, lightness, alpha)
open class Color : CssProperty() {
override fun css(): String = "#xxxxxx"
}
class RGBColor(
val red: Int,
val green: Int,
val blue: Int
) : Color() {
override fun css(): String = "rgb($red, $green, $blue)"
}
class RGBAColor(
val red: Int,
val green: Int,
val blue: Int,
val alpha: Double
) : Color() {
override fun css(): String = "rgba($red, $green, $blue, $alpha)"
}
class HSLColor(
val hue: Int,
val saturation: Int,
val lightness: Int
) : Color() {
override fun css(): String = "hsl($hue, $saturation, $lightness)"
}
class HSLAColor(
val hue: Int,
val saturation: Int,
val lightness: Int,
val alpha: Double
) : Color() {
override fun css(): String = "hsla($hue, $saturation, $lightness, $alpha)"
}

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src/commonMain/kotlin/nl/astraeus/css/CssBuilder.kt Normal file
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package nl.astraeus.css
@DslMarker
annotation class CssTagMarker
@CssTagMarker
open class Style(
var color: Color? = null,
var backgroundColor: Color? = null,
var left: Measurement? = null,
var top: Measurement? = null,
var width: Measurement? = null,
var height: Measurement? = null,
var fontFamily: PlainProperty? = null,
var fontSize: FontSize? = null
) {
fun getMapping() = mapOf(
"color" to color,
"background-color" to backgroundColor,
"left" to left,
"top" to top,
"width" to width,
"height" to height,
"font-family" to fontFamily,
"font-size" to fontSize
)
fun propertyCss(indent: String, name: String, prop: CssProperty?): String = if (prop != null) {
"$indent$name: ${prop.css()};\n"
} else {
""
}
fun generatePropertyCss(indent: String): String {
val builder = StringBuilder()
for ((name, prop) in getMapping()) {
builder.append(propertyCss(indent, name, prop))
}
return builder.toString()
}
}
@CssTagMarker
open class StyleDefinition : Style() {
val definitions: MutableMap<String, StyleDefinition> = mutableMapOf()
val includes: MutableList<Style> = mutableListOf()
fun css(selector: String, style: StyleDefinition.() -> Unit) {
val styleValue = StyleDefinition()
style(styleValue)
definitions[selector] = styleValue
}
fun include(style: Style) {
includes.add(style)
}
open fun generateCss(namespace: String = "", indent: String = " "): String {
val builder = StringBuilder()
for ((name, prop) in definitions) {
val css = StringBuilder()
css.append(prop.generatePropertyCss(indent))
for (style in prop.includes) {
css.append(style.generatePropertyCss(indent))
}
if (css.isNotBlank()) {
builder.append("$namespace $name".trim())
builder.append(" {\n")
builder.append(css)
builder.append("}\n\n")
}
builder.append(prop.generateCss( "${namespace} $name".trim(), indent))
}
return builder.toString()
}
}
fun css(definition: Style.() -> Unit): Style {
val css = Style()
definition(css)
return css
}
class CssBuilder {
var definition: StyleDefinition = StyleDefinition()
fun style(definition: StyleDefinition.() -> Unit) {
definition(this.definition)
}
fun getCss(): String = definition.generateCss()
override fun toString(): String {
return "CssBuilder(${definition.generateCss()})"
}
}

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src/commonMain/kotlin/nl/astraeus/css/CssProperty.kt Normal file
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package nl.astraeus.css
abstract class CssProperty {
abstract fun css(): String
}
fun plain(value: String) = PlainProperty(value)
class PlainProperty(
val value: String
): CssProperty() {
override fun css(): String = value
}

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src/commonMain/kotlin/nl/astraeus/css/Measurement.kt Normal file
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package nl.astraeus.css
fun px(nr: Int): Measurement = Measurement(MeasurementType.PX, nr)
fun em(nr: Int): Measurement = Measurement(MeasurementType.EM, nr)
fun perc(nr: Int): Measurement = Measurement(MeasurementType.PERCENTAGE, nr)
enum class MeasurementType {
PX,
EM,
PERCENTAGE,
OTHER
}
open class Measurement(
val type: MeasurementType,
val intValue: Int = 0,
val stringValue: String = ""
) : CssProperty() {
override fun css(): String = when(type) {
MeasurementType.PX -> {
"${intValue}px"
}
MeasurementType.EM -> {
"${intValue}em"
}
MeasurementType.PERCENTAGE -> {
"${stringValue}%"
}
else -> {
error("Unhandled type $type")
}
}
}
enum class FontSizeType {
PX,
EM,
PERCENTAGE,
}
class FontSize(
val fontType: FontSizeType,
intValue: Int = 0,
stringValue: String = ""
) : Measurement(
MeasurementType.PX,
intValue,
stringValue
) {
override fun css(): String = "12px"
}

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src/commonTest/kotlin/nl/astraeus/css/TestCssBuilder.kt Normal file
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package nl.astraeus.css
import kotlin.test.Test
object TestCssBuilder {
@Test
fun testBuilder() {
val css = CssBuilder()
css.style {
css(".test") {
top = px(10)
left = em(5)
backgroundColor = rgba(255, 255, 255, 0.75)
sel("> a") {
color = hsl(200, 50, 50)
}
}
}
println(css)
}
}

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src/jvmMain/kotlin/nl/astraeus/css/Test.kt Normal file
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package nl.astraeus.css
class StyleBase(
val mainColor: Color = hsl(128, 50, 50),
val mainBackgroundColor: Color = hsl(64, 50, 50),
val mainFont: PlainProperty = plain("Arial")
)
private fun StyleDefinition.sizePX(
left: Int,
top: Int,
width: Int,
height: Int
) {
this@sizePX.top = px(top)
this@sizePX.left = px(left)
this@sizePX.width = px(width)
this@sizePX.height = px(height)
}
private fun generateCss(
base: StyleBase
): String {
val css = CssBuilder()
css.style {
css("body") {
fontFamily = base.mainFont
color = base.mainColor
backgroundColor = base.mainBackgroundColor
}
css(".test") {
top = px(10)
left = em(5)
backgroundColor = rgba(255, 255, 255, 0.75)
css("> a") {
color = hsl(200, 50, 50)
}
}
css("nav") {
css("ul") {
color = hsl(0, 100, 25)
backgroundColor = base.mainBackgroundColor
}
css("li") {
sizePX(25, 25, 200, 200)
css("a") {
width = px(725)
backgroundColor = base.mainBackgroundColor
}
}
}
}
return css.getCss()
}
fun main() {
val css1 = generateCss(StyleBase())
val css2 = generateCss(StyleBase(
hsl(32, 40, 50),
hsl(64, 60, 35),
plain("Courier")
))
println(css1)
println(css2)
}