pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/base/java/org/mozilla/gecko/customtabs/CustomTabsActivity.java

@@ -0,0 +1,177 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.customtabs;
+
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.v7.app.ActionBar;
+import android.support.v7.widget.Toolbar;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.TextView;
+
+import org.mozilla.gecko.AppConstants;
+import org.mozilla.gecko.GeckoApp;
+import org.mozilla.gecko.GeckoAppShell;
+import org.mozilla.gecko.R;
+import org.mozilla.gecko.Tab;
+import org.mozilla.gecko.Tabs;
+import org.mozilla.gecko.util.ColorUtil;
+import org.mozilla.gecko.util.GeckoRequest;
+import org.mozilla.gecko.util.NativeJSObject;
+import org.mozilla.gecko.util.ThreadUtils;
+
+import java.lang.reflect.Field;
+
+import static android.support.customtabs.CustomTabsIntent.EXTRA_TOOLBAR_COLOR;
+
+public class CustomTabsActivity extends GeckoApp implements Tabs.OnTabsChangedListener {
+    private static final String LOGTAG = "CustomTabsActivity";
+    private static final String SAVED_TOOLBAR_COLOR = "SavedToolbarColor";
+    private static final String SAVED_TOOLBAR_TITLE = "SavedToolbarTitle";
+    private static final int NO_COLOR = -1;
+    private Toolbar toolbar;
+
+    private ActionBar actionBar;
+    private int tabId = -1;
+    private boolean useDomainTitle = true;
+
+    private int toolbarColor;
+    private String toolbarTitle;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        if (savedInstanceState != null) {
+            toolbarColor = savedInstanceState.getInt(SAVED_TOOLBAR_COLOR, NO_COLOR);
+            toolbarTitle = savedInstanceState.getString(SAVED_TOOLBAR_TITLE, AppConstants.MOZ_APP_BASENAME);
+        } else {
+            toolbarColor = NO_COLOR;
+            toolbarTitle = AppConstants.MOZ_APP_BASENAME;
+        }
+
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        updateActionBarWithToolbar(toolbar);
+        try {
+            // Since we don't create the Toolbar's TextView ourselves, this seems
+            // to be the only way of changing the ellipsize setting.
+            Field f = toolbar.getClass().getDeclaredField("mTitleTextView");
+            f.setAccessible(true);
+            TextView textView = (TextView) f.get(toolbar);
+            textView.setEllipsize(TextUtils.TruncateAt.START);
+        } catch (Exception e) {
+            // If we can't ellipsize at the start of the title, we shouldn't display the host
+            // so as to avoid displaying a misleadingly truncated host.
+            Log.w(LOGTAG, "Failed to get Toolbar TextView, using default title.");
+            useDomainTitle = false;
+        }
+        actionBar = getSupportActionBar();
+        actionBar.setTitle(toolbarTitle);
+        updateToolbarColor(toolbar);
+
+        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                onBackPressed();
+            }
+        });
+
+        Tabs.registerOnTabsChangedListener(this);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        Tabs.unregisterOnTabsChangedListener(this);
+    }
+
+    @Override
+    public int getLayout() {
+        return R.layout.customtabs_activity;
+    }
+
+    @Override
+    protected void onDone() {
+        finish();
+    }
+
+    @Override
+    public void onTabChanged(Tab tab, Tabs.TabEvents msg, String data) {
+        if (tab == null) {
+            return;
+        }
+
+        if (tabId >= 0 && tab.getId() != tabId) {
+            return;
+        }
+
+        if (msg == Tabs.TabEvents.LOCATION_CHANGE) {
+            tabId = tab.getId();
+            final Uri uri = Uri.parse(tab.getURL());
+            String title = null;
+            if (uri != null) {
+                title = uri.getHost();
+            }
+            if (!useDomainTitle || title == null || title.isEmpty()) {
+                toolbarTitle = AppConstants.MOZ_APP_BASENAME;
+            } else {
+                toolbarTitle = title;
+            }
+            actionBar.setTitle(toolbarTitle);
+        }
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        outState.putInt(SAVED_TOOLBAR_COLOR, toolbarColor);
+        outState.putString(SAVED_TOOLBAR_TITLE, toolbarTitle);
+    }
+
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void updateActionBarWithToolbar(final Toolbar toolbar) {
+        setSupportActionBar(toolbar);
+        final ActionBar ab = getSupportActionBar();
+        if (ab != null) {
+            ab.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    private void updateToolbarColor(final Toolbar toolbar) {
+        if (toolbarColor == NO_COLOR) {
+            final int color = getIntent().getIntExtra(EXTRA_TOOLBAR_COLOR, NO_COLOR);
+            if (color == NO_COLOR) {
+                return;
+            }
+            toolbarColor = color;
+        }
+
+        final int titleTextColor = ColorUtil.getReadableTextColor(toolbarColor);
+
+        toolbar.setBackgroundColor(toolbarColor);
+        toolbar.setTitleTextColor(titleTextColor);
+        final Window window = getWindow();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
+            window.setStatusBarColor(ColorUtil.darken(toolbarColor, 0.25));
+        }
+    }
+}

mobile/android/base/java/org/mozilla/gecko/customtabs/GeckoCustomTabsService.java

@@ -0,0 +1,65 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.customtabs;
+
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.customtabs.CustomTabsService;
+import android.support.customtabs.CustomTabsSessionToken;
+import android.util.Log;
+
+import org.mozilla.gecko.GeckoProfile;
+import org.mozilla.gecko.GeckoService;
+
+import java.util.List;
+
+/**
+ * Custom tabs service external, third-party apps connect to.
+ */
+public class GeckoCustomTabsService extends CustomTabsService {
+    private static final String LOGTAG = "GeckoCustomTabsService";
+    private static final boolean DEBUG = false;
+
+    @Override
+    protected boolean updateVisuals(CustomTabsSessionToken sessionToken, Bundle bundle) {
+        Log.v(LOGTAG, "updateVisuals()");
+
+        return false;
+    }
+
+    @Override
+    protected boolean warmup(long flags) {
+        if (DEBUG) {
+            Log.v(LOGTAG, "warming up...");
+        }
+
+        GeckoService.startGecko(GeckoProfile.initFromArgs(this, null), null, getApplicationContext());
+
+        return true;
+    }
+
+    @Override
+    protected boolean newSession(CustomTabsSessionToken sessionToken) {
+        Log.v(LOGTAG, "newSession()");
+
+        // Pretend session has been started
+        return true;
+    }
+
+    @Override
+    protected boolean mayLaunchUrl(CustomTabsSessionToken sessionToken, Uri uri, Bundle bundle, List<Bundle> list) {
+        Log.v(LOGTAG, "mayLaunchUrl()");
+
+        return false;
+    }
+
+    @Override
+    protected Bundle extraCommand(String commandName, Bundle bundle) {
+        Log.v(LOGTAG, "extraCommand()");
+
+        return null;
+    }
+}