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/*
* 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.checks;
import static com.android.SdkConstants.ABSOLUTE_LAYOUT;
import static com.android.SdkConstants.ANDROID_URI;
import static com.android.SdkConstants.ATTR_AUTO_TEXT;
import static com.android.SdkConstants.ATTR_CAPITALIZE;
import static com.android.SdkConstants.ATTR_EDITABLE;
import static com.android.SdkConstants.ATTR_ENABLED;
import static com.android.SdkConstants.ATTR_INPUT_METHOD;
import static com.android.SdkConstants.ATTR_NUMERIC;
import static com.android.SdkConstants.ATTR_PASSWORD;
import static com.android.SdkConstants.ATTR_PHONE_NUMBER;
import static com.android.SdkConstants.ATTR_SINGLE_LINE;
import static com.android.SdkConstants.EDIT_TEXT;
import static com.android.SdkConstants.VALUE_TRUE;
import com.android.annotations.NonNull;
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.LayoutDetector;
import com.android.tools.lint.detector.api.Scope;
import com.android.tools.lint.detector.api.Severity;
import com.android.tools.lint.detector.api.Speed;
import com.android.tools.lint.detector.api.XmlContext;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
/**
* Check which looks for usage of deprecated tags, attributes, etc.
*/
public class DeprecationDetector extends LayoutDetector {
/** Usage of deprecated views or attributes */
public static final Issue ISSUE = Issue.create(
"Deprecated", //$NON-NLS-1$
"Using deprecated resources",
"Deprecated views, attributes and so on are deprecated because there " +
"is a better way to do something. Do it that new way. You've been warned.",
Category.CORRECTNESS,
2,
Severity.WARNING,
new Implementation(
DeprecationDetector.class,
Scope.RESOURCE_FILE_SCOPE));
/** Constructs a new {@link DeprecationDetector} */
public DeprecationDetector() {
}
@NonNull
@Override
public Speed getSpeed() {
return Speed.FAST;
}
@Override
public Collection getApplicableElements() {
return Collections.singletonList(
ABSOLUTE_LAYOUT
);
}
@Override
public Collection getApplicableAttributes() {
return Arrays.asList(
// TODO: fill_parent is deprecated as of API 8.
// We could warn about it, but it will probably be very noisy
// and make people disable the deprecation check; let's focus on
// some older flags for now
//"fill_parent",
ATTR_EDITABLE,
ATTR_INPUT_METHOD,
ATTR_AUTO_TEXT,
ATTR_CAPITALIZE,
// This flag is still used a lot and is still properly handled by TextView
// so in the interest of not being too noisy and make people ignore all the
// output, keep quiet about this one -for now-.
//ATTR_SINGLE_LINE,
// This attribute is marked deprecated in android.R.attr but apparently
// using the suggested replacement of state_enabled doesn't work, see issue 27613
//ATTR_ENABLED,
ATTR_NUMERIC,
ATTR_PHONE_NUMBER,
ATTR_PASSWORD
// These attributes are also deprecated; not yet enabled until we
// know the API level to apply the deprecation for:
// "ignored as of ICS (but deprecated earlier)"
//"fadingEdge",
// "This attribute is not used by the Android operating system."
//"restoreNeedsApplication",
// "This will create a non-standard UI appearance, because the search bar UI is
// changing to use only icons for its buttons."
//"searchButtonText",
);
}
@Override
public void visitElement(@NonNull XmlContext context, @NonNull Element element) {
context.report(ISSUE, element, context.getLocation(element),
String.format("`%1$s` is deprecated", element.getTagName()));
}
@Override
public void visitAttribute(@NonNull XmlContext context, @NonNull Attr attribute) {
if (!ANDROID_URI.equals(attribute.getNamespaceURI())) {
return;
}
String name = attribute.getLocalName();
String fix;
int minSdk = 1;
if (name.equals(ATTR_EDITABLE)) {
if (!EDIT_TEXT.equals(attribute.getOwnerElement().getTagName())) {
fix = "Use an `` to make it editable";
} else {
if (VALUE_TRUE.equals(attribute.getValue())) {
fix = "`` is already editable";
} else {
fix = "Use `inputType` instead";
}
}
} else if (name.equals(ATTR_ENABLED)) {
fix = "Use `state_enabled` instead";
} else if (name.equals(ATTR_SINGLE_LINE)) {
fix = "Use `maxLines=\"1\"` instead";
} else {
assert name.equals(ATTR_INPUT_METHOD)
|| name.equals(ATTR_CAPITALIZE)
|| name.equals(ATTR_NUMERIC)
|| name.equals(ATTR_PHONE_NUMBER)
|| name.equals(ATTR_PASSWORD)
|| name.equals(ATTR_AUTO_TEXT);
fix = "Use `inputType` instead";
// The inputType attribute was introduced in API 3 so don't warn about
// deprecation if targeting older platforms
minSdk = 3;
}
if (context.getProject().getMinSdk() < minSdk) {
return;
}
context.report(ISSUE, attribute, context.getLocation(attribute),
String.format("`%1$s` is deprecated: %2$s",
attribute.getName(), fix));
}
}
