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KotlinCodeGenerator.kt
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KotlinCodeGenerator.kt
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/*
* Copyright 2018 Bartosz Lipinski
*
* 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
*
* http://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.
*/
package com.bartoszlipinski.butterknifektx
import com.squareup.kotlinpoet.AnnotationSpec
import com.squareup.kotlinpoet.ClassName
import com.squareup.kotlinpoet.FunSpec
class KotlinCodeGenerator {
companion object {
private const val FUN_BIND = "bind"
private const val PARAM_TARGET = "target"
private const val PARAM_SOURCE_VIEW = "sourceView"
private const val PARAM_SOURCE = "source"
private const val STATEMENT_GET_DECOR_VIEW = "val %L = %L.getWindow().getDecorView()"
private const val STATEMENT_RETURN_NEW_INSTANCE = "return %T(%L, %L)"
private val CLASS_NAME_UNBINDER =
ClassName("butterknife", "Unbinder")
private val CLASS_NAME_BUTTERKNIFE_KTX =
ClassName("com.bartoszlipinski.butterknifektx", "ButterKnifeKtx")
private val CLASS_NAME_ACTIVITY =
ClassName("android.app", "Activity")
private val CLASS_NAME_VIEW =
ClassName("android.view", "View")
private val CLASS_NAME_DIALOG =
ClassName("android.app", "Dialog")
private val ANNOTATION_UI_THREAD = AnnotationSpec
.builder(ClassName("android.support.annotation", "UiThread"))
.build()
}
fun generateBindActivityOrDialog(candidate: ViewBindingCandidate): FunSpec {
return FunSpec.builder(FUN_BIND)
.addAnnotation(ANNOTATION_UI_THREAD)
.returns(CLASS_NAME_UNBINDER)
.receiver(CLASS_NAME_BUTTERKNIFE_KTX)
.addParameter(PARAM_TARGET, candidate.targetClassName)
.addStatement(STATEMENT_GET_DECOR_VIEW, PARAM_SOURCE_VIEW, PARAM_TARGET)
.addStatement(STATEMENT_RETURN_NEW_INSTANCE,
candidate.initializedClassName, PARAM_TARGET, PARAM_SOURCE_VIEW)
.build()
}
fun generateBindView(candidate: ViewBindingCandidate): FunSpec {
return FunSpec.builder(FUN_BIND)
.addAnnotation(ANNOTATION_UI_THREAD)
.returns(CLASS_NAME_UNBINDER)
.receiver(CLASS_NAME_BUTTERKNIFE_KTX)
.addParameter(PARAM_TARGET, candidate.targetClassName)
.addStatement(STATEMENT_RETURN_NEW_INSTANCE,
candidate.initializedClassName, PARAM_TARGET, PARAM_TARGET)
.build()
}
fun generateBindTargetActivity(candidate: ViewBindingCandidate): FunSpec {
return FunSpec.builder(FUN_BIND)
.addAnnotation(ANNOTATION_UI_THREAD)
.returns(CLASS_NAME_UNBINDER)
.receiver(CLASS_NAME_BUTTERKNIFE_KTX)
.addParameter(PARAM_TARGET, candidate.targetClassName)
.addParameter(PARAM_SOURCE, CLASS_NAME_ACTIVITY)
.addStatement(STATEMENT_GET_DECOR_VIEW, PARAM_SOURCE_VIEW, PARAM_SOURCE)
.addStatement(STATEMENT_RETURN_NEW_INSTANCE,
candidate.initializedClassName, PARAM_TARGET, PARAM_SOURCE_VIEW)
.build()
}
fun generateBindTargetView(candidate: ViewBindingCandidate): FunSpec {
return FunSpec.builder(FUN_BIND)
.addAnnotation(ANNOTATION_UI_THREAD)
.returns(CLASS_NAME_UNBINDER)
.receiver(CLASS_NAME_BUTTERKNIFE_KTX)
.addParameter(PARAM_TARGET, candidate.targetClassName)
.addParameter(PARAM_SOURCE, CLASS_NAME_VIEW)
.addStatement(STATEMENT_RETURN_NEW_INSTANCE,
candidate.initializedClassName, PARAM_TARGET, PARAM_SOURCE)
.build()
}
fun generateBindTargetDialog(candidate: ViewBindingCandidate): FunSpec {
return FunSpec.builder(FUN_BIND)
.addAnnotation(ANNOTATION_UI_THREAD)
.returns(CLASS_NAME_UNBINDER)
.receiver(CLASS_NAME_BUTTERKNIFE_KTX)
.addParameter(PARAM_TARGET, candidate.targetClassName)
.addParameter(PARAM_SOURCE, CLASS_NAME_DIALOG)
.addStatement(STATEMENT_GET_DECOR_VIEW, PARAM_SOURCE_VIEW, PARAM_SOURCE)
.addStatement(STATEMENT_RETURN_NEW_INSTANCE,
candidate.initializedClassName, PARAM_TARGET, PARAM_SOURCE_VIEW)
.build()
}
}