1 files changed, 312 insertions, 0 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/home/TopSitesGridItemView.java b/mobile/android/base/java/org/mozilla/gecko/home/TopSitesGridItemView.java
new file mode 100644
index 000000000..c17aff209
--- /dev/null
+++ b/mobile/android/base/java/org/mozilla/gecko/home/TopSitesGridItemView.java
@@ -0,0 +1,312 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; 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.home;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.widget.ImageView.ScaleType;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import org.mozilla.gecko.R;
+import org.mozilla.gecko.db.BrowserContract.TopSites;
+import org.mozilla.gecko.icons.IconCallback;
+import org.mozilla.gecko.icons.IconResponse;
+import org.mozilla.gecko.icons.Icons;
+
+import java.util.concurrent.Future;
+
+/**
+ * A view that displays the thumbnail and the title/url for a top/pinned site.
+ * If the title/url is longer than the width of the view, they are faded out.
+ * If there is no valid url, a default string is shown at 50% opacity.
+ * This is denoted by the empty state.
+ */
+public class TopSitesGridItemView extends RelativeLayout implements IconCallback {
+    private static final String LOGTAG = "GeckoTopSitesGridItemView";
+
+    // Empty state, to denote there is no valid url.
+    private static final int[] STATE_EMPTY = { android.R.attr.state_empty };
+
+    private static final ScaleType SCALE_TYPE_FAVICON   = ScaleType.CENTER;
+    private static final ScaleType SCALE_TYPE_RESOURCE  = ScaleType.CENTER;
+    private static final ScaleType SCALE_TYPE_THUMBNAIL = ScaleType.CENTER_CROP;
+    private static final ScaleType SCALE_TYPE_URL       = ScaleType.CENTER_INSIDE;
+
+    // Child views.
+    private final TextView mTitleView;
+    private final TopSitesThumbnailView mThumbnailView;
+
+    // Data backing this view.
+    private String mTitle;
+    private String mUrl;
+
+    private boolean mThumbnailSet;
+
+    // Matches BrowserContract.TopSites row types
+    private int mType = -1;
+
+    // Dirty state.
+    private boolean mIsDirty;
+
+    private Future<IconResponse> mOngoingIconRequest;
+
+    public TopSitesGridItemView(Context context) {
+        this(context, null);
+    }
+
+    public TopSitesGridItemView(Context context, AttributeSet attrs) {
+        this(context, attrs, R.attr.topSitesGridItemViewStyle);
+    }
+
+    public TopSitesGridItemView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+
+        LayoutInflater.from(context).inflate(R.layout.top_sites_grid_item_view, this);
+
+        mTitleView = (TextView) findViewById(R.id.title);
+        mThumbnailView = (TopSitesThumbnailView) findViewById(R.id.thumbnail);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int[] onCreateDrawableState(int extraSpace) {
+        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
+
+        if (mType == TopSites.TYPE_BLANK) {
+            mergeDrawableStates(drawableState, STATE_EMPTY);
+        }
+
+        return drawableState;
+    }
+
+    /**
+     * @return The title shown by this view.
+     */
+    public String getTitle() {
+        return (!TextUtils.isEmpty(mTitle) ? mTitle : mUrl);
+    }
+
+    /**
+     * @return The url shown by this view.
+     */
+    public String getUrl() {
+        return mUrl;
+    }
+
+    /**
+     * @return The site type associated with this view.
+     */
+    public int getType() {
+        return mType;
+    }
+
+    /**
+     * @param title The title for this view.
+     */
+    public void setTitle(String title) {
+        if (mTitle != null && mTitle.equals(title)) {
+            return;
+        }
+
+        mTitle = title;
+        updateTitleView();
+    }
+
+    /**
+     * @param url The url for this view.
+     */
+    public void setUrl(String url) {
+        if (mUrl != null && mUrl.equals(url)) {
+            return;
+        }
+
+        mUrl = url;
+        updateTitleView();
+    }
+
+    public void blankOut() {
+        mUrl = "";
+        mTitle = "";
+        updateType(TopSites.TYPE_BLANK);
+        updateTitleView();
+        cancelIconLoading();
+        ImageLoader.with(getContext()).cancelRequest(mThumbnailView);
+        displayThumbnail(R.drawable.top_site_add);
+
+    }
+
+    public void markAsDirty() {
+        mIsDirty = true;
+    }
+
+    /**
+     * Updates the title, URL, and pinned state of this view.
+     *
+     * Also resets our loadId to NOT_LOADING.
+     *
+     * Returns true if any fields changed.
+     */
+    public boolean updateState(final String title, final String url, final int type, final TopSitesPanel.ThumbnailInfo thumbnail) {
+        boolean changed = false;
+        if (mUrl == null || !mUrl.equals(url)) {
+            mUrl = url;
+            changed = true;
+        }
+
+        if (mTitle == null || !mTitle.equals(title)) {
+            mTitle = title;
+            changed = true;
+        }
+
+        if (thumbnail != null) {
+            if (thumbnail.imageUrl != null) {
+                displayThumbnail(thumbnail.imageUrl, thumbnail.bgColor);
+            } else if (thumbnail.bitmap != null) {
+                displayThumbnail(thumbnail.bitmap);
+            }
+        } else if (changed) {
+            // Because we'll have a new favicon or thumbnail arriving shortly, and
+            // we need to not reject it because we already had a thumbnail.
+            mThumbnailSet = false;
+        }
+
+        if (changed) {
+            updateTitleView();
+            cancelIconLoading();
+            ImageLoader.with(getContext()).cancelRequest(mThumbnailView);
+        }
+
+        if (updateType(type)) {
+            changed = true;
+        }
+
+        // The dirty state forces the state update to return true
+        // so that the adapter loads favicons once the thumbnails
+        // are loaded in TopSitesPanel/TopSitesGridAdapter.
+        changed = (changed || mIsDirty);
+        mIsDirty = false;
+
+        return changed;
+    }
+
+    /**
+     * Try to load an icon for the given page URL.
+     */
+    public void loadFavicon(String pageUrl) {
+        mOngoingIconRequest = Icons.with(getContext())
+                .pageUrl(pageUrl)
+                .skipNetwork()
+                .build()
+                .execute(this);
+    }
+
+    private void cancelIconLoading() {
+        if (mOngoingIconRequest != null) {
+            mOngoingIconRequest.cancel(true);
+        }
+    }
+
+    /**
+     * Display the thumbnail from a resource.
+     *
+     * @param resId Resource ID of the drawable to show.
+     */
+    public void displayThumbnail(int resId) {
+        mThumbnailView.setScaleType(SCALE_TYPE_RESOURCE);
+        mThumbnailView.setImageResource(resId);
+        mThumbnailView.setBackgroundColor(0x0);
+        mThumbnailSet = false;
+    }
+
+    /**
+     * Display the thumbnail from a bitmap.
+     *
+     * @param thumbnail The bitmap to show as thumbnail.
+     */
+    public void displayThumbnail(Bitmap thumbnail) {
+        if (thumbnail == null) {
+            return;
+        }
+
+        mThumbnailSet = true;
+
+        cancelIconLoading();
+        ImageLoader.with(getContext()).cancelRequest(mThumbnailView);
+
+        mThumbnailView.setScaleType(SCALE_TYPE_THUMBNAIL);
+        mThumbnailView.setImageBitmap(thumbnail, true);
+        mThumbnailView.setBackgroundDrawable(null);
+    }
+
+    /**
+     * Display the thumbnail from a URL.
+     *
+     * @param imageUrl URL of the image to show.
+     * @param bgColor background color to use in the view.
+     */
+    public void displayThumbnail(final String imageUrl, final int bgColor) {
+        mThumbnailView.setScaleType(SCALE_TYPE_URL);
+        mThumbnailView.setBackgroundColor(bgColor);
+        mThumbnailSet = true;
+
+        ImageLoader.with(getContext())
+                   .load(imageUrl)
+                   .noFade()
+                   .into(mThumbnailView);
+    }
+
+    /**
+     * Update the item type associated with this view. Returns true if
+     * the type has changed, false otherwise.
+     */
+    private boolean updateType(int type) {
+        if (mType == type) {
+            return false;
+        }
+
+        mType = type;
+        refreshDrawableState();
+
+        int pinResourceId = (type == TopSites.TYPE_PINNED ? R.drawable.pin : 0);
+        mTitleView.setCompoundDrawablesWithIntrinsicBounds(pinResourceId, 0, 0, 0);
+
+        return true;
+    }
+
+    /**
+     * Update the title shown by this view. If both title and url
+     * are empty, mark the state as STATE_EMPTY and show a default text.
+     */
+    private void updateTitleView() {
+        String title = getTitle();
+        if (!TextUtils.isEmpty(title)) {
+            mTitleView.setText(title);
+        } else {
+            mTitleView.setText(R.string.home_top_sites_add);
+        }
+    }
+
+    /**
+     * Display the loaded icon (if no thumbnail is set).
+     */
+    @Override
+    public void onIconResponse(IconResponse response) {
+        if (mThumbnailSet) {
+            // Already showing a thumbnail; do nothing.
+            return;
+        }
+
+        mThumbnailView.setScaleType(SCALE_TYPE_FAVICON);
+        mThumbnailView.setImageBitmap(response.getBitmap(), false);
+        mThumbnailView.setBackgroundColorWithOpacityFilter(response.getColor());
+    }
+}