The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/base/home/PanelRefreshLayout.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,95 @@
     1.4 +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +package org.mozilla.gecko.home;
    1.10 +
    1.11 +import org.mozilla.gecko.R;
    1.12 +
    1.13 +import org.mozilla.gecko.GeckoAppShell;
    1.14 +import org.mozilla.gecko.GeckoEvent;
    1.15 +import org.mozilla.gecko.home.PanelLayout.DatasetBacked;
    1.16 +import org.mozilla.gecko.home.PanelLayout.FilterManager;
    1.17 +import org.mozilla.gecko.widget.GeckoSwipeRefreshLayout;
    1.18 +import org.mozilla.gecko.widget.GeckoSwipeRefreshLayout.OnRefreshListener;
    1.19 +
    1.20 +import org.json.JSONException;
    1.21 +import org.json.JSONObject;
    1.22 +
    1.23 +import android.content.Context;
    1.24 +import android.database.Cursor;
    1.25 +import android.util.Log;
    1.26 +import android.view.View;
    1.27 +
    1.28 +/**
    1.29 + * Used to wrap a {@code DatasetBacked} ListView or GridView to give the child view swipe-to-refresh
    1.30 + * capabilities.
    1.31 + *
    1.32 + * This view acts as a decorator to forward the {@code DatasetBacked} methods to the child view
    1.33 + * while providing the refresh gesture support on top of it.
    1.34 + */
    1.35 +class PanelRefreshLayout extends GeckoSwipeRefreshLayout implements DatasetBacked {
    1.36 +    private static final String LOGTAG = "GeckoPanelRefreshLayout";
    1.37 +
    1.38 +    private static final String JSON_KEY_PANEL_ID = "panelId";
    1.39 +    private static final String JSON_KEY_VIEW_INDEX = "viewIndex";
    1.40 +
    1.41 +    private final String panelId;
    1.42 +    private final int viewIndex;
    1.43 +    private final DatasetBacked datasetBacked;
    1.44 +
    1.45 +    /**
    1.46 +     * @param context Android context.
    1.47 +     * @param childView ListView or GridView. Must implement {@code DatasetBacked}.
    1.48 +     * @param panelId The ID from the {@code PanelConfig}.
    1.49 +     * @param viewIndex The index from the {@code ViewConfig}.
    1.50 +     */
    1.51 +    public PanelRefreshLayout(Context context, View childView, String panelId, int viewIndex) {
    1.52 +        super(context);
    1.53 +
    1.54 +        if (!(childView instanceof DatasetBacked)) {
    1.55 +            throw new IllegalArgumentException("View must implement DatasetBacked to be refreshed");
    1.56 +        }
    1.57 +
    1.58 +        this.panelId = panelId;
    1.59 +        this.viewIndex = viewIndex;
    1.60 +        this.datasetBacked = (DatasetBacked) childView;
    1.61 +
    1.62 +        setOnRefreshListener(new RefreshListener());
    1.63 +        addView(childView);
    1.64 +
    1.65 +        // Must be called after the child view has been added.
    1.66 +        setColorScheme(R.color.swipe_refresh_orange, R.color.swipe_refresh_white,
    1.67 +                       R.color.swipe_refresh_orange, R.color.swipe_refresh_white);
    1.68 +    }
    1.69 +
    1.70 +    @Override
    1.71 +    public void setDataset(Cursor cursor) {
    1.72 +        datasetBacked.setDataset(cursor);
    1.73 +        setRefreshing(false);
    1.74 +    }
    1.75 +
    1.76 +    @Override
    1.77 +    public void setFilterManager(FilterManager manager) {
    1.78 +        datasetBacked.setFilterManager(manager);
    1.79 +    }
    1.80 +
    1.81 +    private class RefreshListener implements OnRefreshListener {
    1.82 +        @Override
    1.83 +        public void onRefresh() {
    1.84 +            final JSONObject response = new JSONObject();
    1.85 +            try {
    1.86 +                response.put(JSON_KEY_PANEL_ID, panelId);
    1.87 +                response.put(JSON_KEY_VIEW_INDEX, viewIndex);
    1.88 +            } catch (JSONException e) {
    1.89 +                Log.e(LOGTAG, "Could not create refresh message", e);
    1.90 +                return;
    1.91 +            }
    1.92 +
    1.93 +            final GeckoEvent event =
    1.94 +                GeckoEvent.createBroadcastEvent("HomePanels:RefreshView", response.toString());
    1.95 +            GeckoAppShell.sendEventToGecko(event);
    1.96 +        }
    1.97 +    }
    1.98 +}