michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.sync.setup.activities;
michael@0: 
michael@0: import java.util.Locale;
michael@0: 
michael@0: import org.mozilla.gecko.background.common.GlobalConstants;
michael@0: import org.mozilla.gecko.background.common.log.Logger;
michael@0: import org.mozilla.gecko.sync.SyncConstants;
michael@0: import org.mozilla.gecko.sync.setup.InvalidSyncKeyException;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.content.Intent;
michael@0: import android.net.Uri;
michael@0: import android.text.Html;
michael@0: import android.text.SpannableString;
michael@0: import android.text.Spanned;
michael@0: import android.text.TextPaint;
michael@0: import android.text.method.LinkMovementMethod;
michael@0: import android.text.style.ClickableSpan;
michael@0: import android.text.style.URLSpan;
michael@0: import android.view.View;
michael@0: import android.widget.TextView;
michael@0: 
michael@0: public class ActivityUtils {
michael@0:   private static final String LOG_TAG = "ActivityUtils";
michael@0: 
michael@0:   public static void prepareLogging() {
michael@0:     Logger.setThreadLogTag(SyncConstants.GLOBAL_LOG_TAG);
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Sync key should be a 26-character string, and can include arbitrary
michael@0:    * capitalization and hyphenation.
michael@0:    *
michael@0:    * @param key
michael@0:    *          Sync key entered by user in account setup.
michael@0:    * @return Sync key in correct format (lower-case, no hyphens).
michael@0:    * @throws InvalidSyncKeyException
michael@0:    */
michael@0:   public static String validateSyncKey(String key) throws InvalidSyncKeyException {
michael@0:     String charKey = key.trim().replace("-", "").toLowerCase(Locale.US);
michael@0:     if (!charKey.matches("^[abcdefghijkmnpqrstuvwxyz23456789]{26}$")) {
michael@0:       throw new InvalidSyncKeyException();
michael@0:     }
michael@0:     return charKey;
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Open a URL in Fennec, if one is provided; or just open Fennec.
michael@0:    *
michael@0:    * @param context Android context.
michael@0:    * @param url to visit, or null to just open Fennec.
michael@0:    */
michael@0:   public static void openURLInFennec(final Context context, final String url) {
michael@0:     Intent intent;
michael@0:     if (url != null) {
michael@0:       intent = new Intent(Intent.ACTION_VIEW);
michael@0:       intent.setData(Uri.parse(url));
michael@0:     } else {
michael@0:       intent = new Intent(Intent.ACTION_MAIN);
michael@0:     }
michael@0:     intent.setClassName(GlobalConstants.BROWSER_INTENT_PACKAGE, GlobalConstants.BROWSER_INTENT_CLASS);
michael@0:     intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
michael@0:     context.startActivity(intent);
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Open a clicked span in Fennec with the provided URL.
michael@0:    */
michael@0:   public static class FennecClickableSpan extends ClickableSpan {
michael@0:     private final String url;
michael@0:     private final boolean underlining;
michael@0: 
michael@0:     public FennecClickableSpan(final String url, boolean underlining) {
michael@0:       this.url = url;
michael@0:       this.underlining = underlining;
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void updateDrawState(TextPaint ds) {
michael@0:       super.updateDrawState(ds);
michael@0:       if (!this.underlining) {
michael@0:         ds.setUnderlineText(false);
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onClick(View widget) {
michael@0:       openURLInFennec(widget.getContext(), this.url);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Replace the contents of a plain text view with the provided text wrapped in a link.
michael@0:    * TODO: escape the URL!
michael@0:    */
michael@0:   public static void linkTextView(TextView view, int text, int link) {
michael@0:     final Context context = view.getContext();
michael@0:     linkTextView(view, context.getString(text), context.getString(link));
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Replace the contents of a plain text view with the provided text wrapped in a link.
michael@0:    * TODO: escape the URL!
michael@0:    */
michael@0:   public static void linkTextView(TextView view, String text, String url) {
michael@0:     view.setText("<a href=\"" + url + "\">" + text + "</a>");
michael@0:     linkifyTextView(view, false);
michael@0:   }
michael@0: 
michael@0:   public static void linkifyTextView(TextView textView, boolean underlining) {
michael@0:     if (textView == null) {
michael@0:       Logger.warn(LOG_TAG, "Could not process links for view.");
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     textView.setMovementMethod(LinkMovementMethod.getInstance());
michael@0: 
michael@0:     // Create spans.
michael@0:     final Spanned spanned = Html.fromHtml(textView.getText().toString());
michael@0: 
michael@0:     // Replace the spans with Fennec-launching links.
michael@0:     SpannableString replaced = new SpannableString(spanned);
michael@0:     URLSpan[] spans = replaced.getSpans(0, replaced.length(), URLSpan.class);
michael@0:     for (URLSpan span : spans) {
michael@0:       final int start = replaced.getSpanStart(span);
michael@0:       final int end = replaced.getSpanEnd(span);
michael@0:       final int flags = replaced.getSpanFlags(span);
michael@0: 
michael@0:       replaced.removeSpan(span);
michael@0:       replaced.setSpan(new FennecClickableSpan(span.getURL(), underlining), start, end, flags);
michael@0:     }
michael@0: 
michael@0:     textView.setText(replaced);
michael@0:   }
michael@0: }