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fenix/mozilla-lint-rules/src/main/java/org/mozilla/fenix/lintrules/TextViewAndroidSrcXmlDetect...

98 lines
3.7 KiB
Kotlin

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.fenix.lintrules
import com.android.SdkConstants.ATTR_DRAWABLE_BOTTOM
import com.android.SdkConstants.ATTR_DRAWABLE_END
import com.android.SdkConstants.ATTR_DRAWABLE_LEFT
import com.android.SdkConstants.ATTR_DRAWABLE_RIGHT
import com.android.SdkConstants.ATTR_DRAWABLE_START
import com.android.SdkConstants.ATTR_DRAWABLE_TOP
import com.android.SdkConstants.FQCN_TEXT_VIEW
import com.android.SdkConstants.TEXT_VIEW
import com.android.resources.ResourceFolderType
import com.android.tools.lint.detector.api.Category
import com.android.tools.lint.detector.api.Implementation
import com.android.tools.lint.detector.api.Issue
import com.android.tools.lint.detector.api.ResourceXmlDetector
import com.android.tools.lint.detector.api.Scope
import com.android.tools.lint.detector.api.Severity
import com.android.tools.lint.detector.api.XmlContext
import org.w3c.dom.Element
/**
* A custom lint check that prohibits not using the app:drawableXCompat to define drawables in TextViews
*/
class TextViewAndroidSrcXmlDetector : ResourceXmlDetector() {
companion object {
const val SCHEMA = "http://schemas.android.com/apk/res/android"
const val ERROR_MESSAGE =
"Using android:drawableX to define resource instead of app:drawableXCompat"
val ISSUE_XML_SRC_USAGE = Issue.create(
id = "TextViewAndroidSrcXmlDetector",
briefDescription = "Prohibits using android namespace to define drawables in TextViews",
explanation = "TextView drawables should be declared using app:drawableXCompat",
category = Category.CORRECTNESS,
severity = Severity.ERROR,
implementation = Implementation(
TextViewAndroidSrcXmlDetector::class.java,
Scope.RESOURCE_FILE_SCOPE
)
)
}
override fun appliesTo(folderType: ResourceFolderType): Boolean {
// Return true if we want to analyze resource files in the specified resource
// folder type. In this case we only need to analyze layout resource files.
return folderType == ResourceFolderType.LAYOUT
}
override fun getApplicableElements(): Collection<String>? {
return setOf(
FQCN_TEXT_VIEW,
TEXT_VIEW
)
}
override fun visitElement(context: XmlContext, element: Element) {
val node = when {
element.hasAttributeNS(SCHEMA, ATTR_DRAWABLE_BOTTOM) -> element.getAttributeNodeNS(
SCHEMA,
ATTR_DRAWABLE_BOTTOM
)
element.hasAttributeNS(SCHEMA, ATTR_DRAWABLE_END) -> element.getAttributeNodeNS(
SCHEMA,
ATTR_DRAWABLE_END
)
element.hasAttributeNS(SCHEMA, ATTR_DRAWABLE_LEFT) -> element.getAttributeNodeNS(
SCHEMA,
ATTR_DRAWABLE_LEFT
)
element.hasAttributeNS(
SCHEMA,
ATTR_DRAWABLE_RIGHT
) -> element.getAttributeNodeNS(SCHEMA, ATTR_DRAWABLE_RIGHT)
element.hasAttributeNS(
SCHEMA,
ATTR_DRAWABLE_START
) -> element.getAttributeNodeNS(SCHEMA, ATTR_DRAWABLE_START)
element.hasAttributeNS(SCHEMA, ATTR_DRAWABLE_TOP) -> element.getAttributeNodeNS(
SCHEMA,
ATTR_DRAWABLE_TOP
)
else -> null
} ?: return
context.report(
issue = ISSUE_XML_SRC_USAGE,
scope = node,
location = context.getLocation(node),
message = ERROR_MESSAGE
)
}
}