129 lines
4.3 KiB
Java
129 lines
4.3 KiB
Java
/*
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* Copyright (C) 2015 Xavi Rigau <xrigau@gmail.com>
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* Copyright (C) 2015 Vincent Breitmoser <look@my.amazin.horse>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* From the droidcon anroid espresso repository.
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* https://github.com/xrigau/droidcon-android-espresso/
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*
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*/
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package org.sufficientlysecure.keychain.matcher;
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import android.content.res.Resources;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.view.View;
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import android.widget.ImageView;
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import android.widget.TextView;
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import org.hamcrest.Description;
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import org.hamcrest.TypeSafeMatcher;
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public class DrawableMatcher extends TypeSafeMatcher<View> {
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private final int mResourceId;
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private final boolean mIgnoreFilters;
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public DrawableMatcher(int resourceId, boolean ignoreFilters) {
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super(View.class);
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mResourceId = resourceId;
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mIgnoreFilters = ignoreFilters;
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}
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private String resourceName = null;
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private Drawable expectedDrawable = null;
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@Override
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public boolean matchesSafely(View target) {
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if (expectedDrawable == null) {
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loadDrawableFromResources(target.getResources());
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}
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if (invalidExpectedDrawable()) {
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return false;
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}
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if (target instanceof ImageView) {
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return hasImage((ImageView) target) || hasBackground(target);
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}
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if (target instanceof TextView) {
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return hasCompoundDrawable((TextView) target) || hasBackground(target);
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}
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return hasBackground(target);
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}
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private void loadDrawableFromResources(Resources resources) {
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try {
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expectedDrawable = resources.getDrawable(mResourceId);
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resourceName = resources.getResourceEntryName(mResourceId);
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} catch (Resources.NotFoundException ignored) {
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// view could be from a context unaware of the resource id.
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}
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}
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private boolean invalidExpectedDrawable() {
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return expectedDrawable == null;
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}
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private boolean hasImage(ImageView target) {
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return isSameDrawable(target.getDrawable());
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}
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private boolean hasCompoundDrawable(TextView target) {
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for (Drawable drawable : target.getCompoundDrawables()) {
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if (isSameDrawable(drawable)) {
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return true;
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}
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}
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return false;
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}
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private boolean hasBackground(View target) {
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return isSameDrawable(target.getBackground());
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}
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private boolean isSameDrawable(Drawable drawable) {
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if (drawable == null) {
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return false;
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}
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// if those are both bitmap drawables, compare their bitmaps (ignores color filters, which is what we want!)
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if (mIgnoreFilters && drawable instanceof BitmapDrawable && expectedDrawable instanceof BitmapDrawable) {
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return ((BitmapDrawable) drawable).getBitmap().sameAs((((BitmapDrawable) expectedDrawable).getBitmap()));
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}
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return expectedDrawable.getConstantState().equals(drawable.getConstantState());
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}
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@Override
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public void describeTo(Description description) {
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description.appendText("with drawable from resource id: ");
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description.appendValue(mResourceId);
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if (resourceName != null) {
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description.appendText("[");
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description.appendText(resourceName);
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description.appendText("]");
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}
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}
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public static DrawableMatcher withDrawable(int resourceId, boolean ignoreFilters) {
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return new DrawableMatcher(resourceId, ignoreFilters);
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}
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public static DrawableMatcher withDrawable(int resourceId) {
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return new DrawableMatcher(resourceId, true);
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}
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}
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