com.android.tools.lint.detector.api.LayoutDetector Maven / Gradle / Ivy
/*
* Copyright (C) 2011 The Android Open Source Project
*
* 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.android.tools.lint.detector.api;
import static com.android.SdkConstants.ANDROID_URI;
import static com.android.SdkConstants.ATTR_LAYOUT_HEIGHT;
import static com.android.SdkConstants.ATTR_LAYOUT_WIDTH;
import static com.android.SdkConstants.ATTR_PADDING;
import static com.android.SdkConstants.ATTR_PADDING_BOTTOM;
import static com.android.SdkConstants.ATTR_PADDING_LEFT;
import static com.android.SdkConstants.ATTR_PADDING_RIGHT;
import static com.android.SdkConstants.ATTR_PADDING_TOP;
import static com.android.SdkConstants.VALUE_FILL_PARENT;
import static com.android.SdkConstants.VALUE_MATCH_PARENT;
import com.android.annotations.NonNull;
import com.android.resources.ResourceFolderType;
import com.google.common.annotations.Beta;
import org.w3c.dom.Element;
/**
* Abstract class specifically intended for layout detectors which provides some
* common utility methods shared by layout detectors.
*
* NOTE: This is not a public or final API; if you rely on this be prepared
* to adjust your code for the next tools release.
*/
@Beta
public abstract class LayoutDetector extends ResourceXmlDetector {
@Override
public boolean appliesTo(@NonNull ResourceFolderType folderType) {
return folderType == ResourceFolderType.LAYOUT;
}
private static boolean isFillParent(@NonNull Element element, @NonNull String dimension) {
String width = element.getAttributeNS(ANDROID_URI, dimension);
return width.equals(VALUE_MATCH_PARENT) || width.equals(VALUE_FILL_PARENT);
}
protected static boolean isWidthFillParent(@NonNull Element element) {
return isFillParent(element, ATTR_LAYOUT_WIDTH);
}
protected static boolean isHeightFillParent(@NonNull Element element) {
return isFillParent(element, ATTR_LAYOUT_HEIGHT);
}
protected boolean hasPadding(@NonNull Element root) {
return root.hasAttributeNS(ANDROID_URI, ATTR_PADDING)
|| root.hasAttributeNS(ANDROID_URI, ATTR_PADDING_LEFT)
|| root.hasAttributeNS(ANDROID_URI, ATTR_PADDING_RIGHT)
|| root.hasAttributeNS(ANDROID_URI, ATTR_PADDING_TOP)
|| root.hasAttributeNS(ANDROID_URI, ATTR_PADDING_BOTTOM);
}
}