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Commit 06e34ad1 authored by John Reck's avatar John Reck
Browse files

Fix help for GalleryGoogle builds

 Bug: 9886976

Change-Id: I23fc78b924f3757f8ab12f84d3a0c97c1adc2333
(cherry picked from commit 7a43c8c3b85d6f9162651d8ed8b3a11a87490824)
parent 24d6ec7b
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@@ -492,9 +492,6 @@
    <!-- The title of the menu item which display online help in browser. [CHAR LIMIT=20]-->
    <string name="help">Help</string>

    <!-- Web address for gallery help.  DO NOT TRANSLATE -->
    <string name="help_url_gallery_main" translatable="false"></string>

    <!-- The tilte of a dialog showing there is no external storage. [CHAR LIMIT=20] -->
    <string name="no_external_storage_title">No Storage</string>

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@@ -554,7 +554,7 @@ public class AlbumSetPage extends ActivityState implements

            FilterUtils.setupMenuItems(mActionBar, mMediaSet.getPath(), false);

            Intent helpIntent = HelpUtils.getHelpIntent(activity, R.string.help_url_gallery_main);
            Intent helpIntent = HelpUtils.getHelpIntent(activity);

            MenuItem helpItem = menu.findItem(R.id.action_general_help);
            helpItem.setVisible(helpIntent != null);
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/*
 * Copyright (C) 2012 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.gallery3d.util;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Log;

import java.util.Locale;

/**
 * Functions to easily prepare contextual help menu option items with an intent that opens up the
 * browser to a particular URL, while taking into account the preferred language and app version.
 */
public class HelpUtils {
    private final static String TAG = HelpUtils.class.getName();

    /**
     * Help URL query parameter key for the preferred language.
     */
    private final static String PARAM_LANGUAGE_CODE = "hl";

    /**
     * Help URL query parameter key for the app version.
     */
    private final static String PARAM_VERSION = "version";

    /**
     * Cached version code to prevent repeated calls to the package manager.
     */
    private static String sCachedVersionCode = null;

    /** Static helper that is not instantiable*/
    private HelpUtils() {}

    public static Intent getHelpIntent(Context context, int helpUrlResId) {
        String helpUrlString = context.getString(helpUrlResId);

        if (TextUtils.isEmpty(helpUrlString)) {
            return null;
        } else {
            // The help url string exists, so first add in some extra query parameters.
            final Uri fullUri = uriWithAddedParameters(context, Uri.parse(helpUrlString));

            // Then, create an intent that will be fired when the user
            // selects this help menu item.
            Intent intent = new Intent(Intent.ACTION_VIEW, fullUri);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                    | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
            return intent;
        }
    }

    /**
     * Adds two query parameters into the Uri, namely the language code and the version code
     * of the app's package as gotten via the context.
     * @return the uri with added query parameters
     */
    private static Uri uriWithAddedParameters(Context context, Uri baseUri) {
        Uri.Builder builder = baseUri.buildUpon();

        // Add in the preferred language
        builder.appendQueryParameter(PARAM_LANGUAGE_CODE, Locale.getDefault().toString());

        // Add in the package version code
        if (sCachedVersionCode == null) {
            // There is no cached version code, so try to get it from the package manager.
            try {
                // cache the version code
                PackageInfo info = context.getPackageManager().getPackageInfo(
                        context.getPackageName(), 0);
                sCachedVersionCode = Integer.toString(info.versionCode);

                // append the version code to the uri
                builder.appendQueryParameter(PARAM_VERSION, sCachedVersionCode);
            } catch (NameNotFoundException e) {
                // Cannot find the package name, so don't add in the version parameter
                // This shouldn't happen.
                Log.wtf(TAG, "Invalid package name for context", e);
            }
        } else {
            builder.appendQueryParameter(PARAM_VERSION, sCachedVersionCode);
        }

        // Build the full uri and return it
        return builder.build();
    }
}
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/*
 * Copyright (C) 2013 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.gallery3d.util;

import android.content.Context;
import android.content.Intent;

public class HelpUtils {

    public static Intent getHelpIntent(Context context) {
		return null;
	}

}