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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.chromoting;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.util.TypedValue;
import android.view.Menu;
import android.view.MenuItem;
import org.chromium.base.ApiCompatibilityUtils;
import org.chromium.base.Log;
/** Utility methods for chromoting code. */
public abstract class ChromotingUtil {
private static final String TAG = "Chromoting";
/**
* Tints all icons of a toolbar menu so they have the same color as the 'back' navigation icon
* and the three-dots overflow icon.
* @param context Context for getting theme and resource information.
* @param menu Menu with icons to be tinted.
*/
public static void tintMenuIcons(Context context, Menu menu) {
int color = getColorAttribute(context, R.attr.colorControlNormal);
int items = menu.size();
for (int i = 0; i < items; i++) {
ChromotingUtil.tintMenuIcon(menu.getItem(i), color);
}
}
/**
* Sets a color filter on the specified MenuItem.
* @param menuItem MenuItem to tint.
* @param color Color to set on the menuItem.
*/
public static void tintMenuIcon(MenuItem menuItem, int color) {
Drawable icon = menuItem.getIcon();
if (icon != null) {
icon.mutate().setColorFilter(color, PorterDuff.Mode.SRC_IN);
}
}
/**
* Returns a color from a theme attribute.
* @param context Context with resources to look up.
* @param attribute Attribute such as R.attr.colorControlNormal.
* @return Color value.
* @throws Resources.NotFoundException
*/
public static int getColorAttribute(Context context, int attribute) {
TypedValue typedValue = new TypedValue();
if (!context.getTheme().resolveAttribute(attribute, typedValue, true)) {
throw new Resources.NotFoundException("Attribute not found.");
}
if (typedValue.resourceId != 0) {
// Attribute is a resource.
return ApiCompatibilityUtils.getColor(context.getResources(), typedValue.resourceId);
} else if (typedValue.type >= TypedValue.TYPE_FIRST_COLOR_INT
&& typedValue.type <= TypedValue.TYPE_LAST_COLOR_INT) {
// Attribute is a raw color value.
return typedValue.data;
} else {
throw new Resources.NotFoundException("Attribute not a color.");
}
}
/**
* Starts a new Activity only if the system can resolve the given Intent. Useful for implicit
* intents where the system might not have an application that can handle it.
* @param context The parent context.
* @param intent The (implicit) intent to launch.
* @return True if the intent was resolved.
*/
public static boolean startActivitySafely(Context context, Intent intent) {
if (intent.resolveActivity(context.getPackageManager()) == null) {
Log.w(TAG, "Unable to resolve activity for: %s", intent);
return false;
}
context.startActivity(intent);
return true;
}
/** Launches an external web browser or application. */
public static boolean openUrl(Activity parentActivity, Uri uri) {
return startActivitySafely(parentActivity, new Intent(Intent.ACTION_VIEW, uri));
}
}
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