Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/InterestsItemView.java |
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/InterestsItemView.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/InterestsItemView.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..32ed4158b1640eddc480c4bc1153956248a19e8c |
--- /dev/null |
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/InterestsItemView.java |
@@ -0,0 +1,222 @@ |
+// Copyright 2015 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+package org.chromium.chrome.browser.ntp; |
+ |
+import android.content.Context; |
+import android.content.res.Resources; |
+import android.content.res.TypedArray; |
+import android.graphics.Color; |
+import android.graphics.Rect; |
+import android.graphics.drawable.BitmapDrawable; |
+import android.graphics.drawable.Drawable; |
+import android.os.AsyncTask; |
+import android.support.v4.graphics.drawable.RoundedBitmapDrawable; |
+import android.support.v4.graphics.drawable.RoundedBitmapDrawableFactory; |
+import android.support.v7.widget.AppCompatTextView; |
+import android.text.TextUtils; |
+import android.util.LruCache; |
+import android.util.TypedValue; |
+import android.view.Gravity; |
+import android.view.View; |
+import android.view.View.OnClickListener; |
+ |
+import org.chromium.base.Log; |
+import org.chromium.chrome.R; |
+import org.chromium.chrome.browser.ntp.InterestsPage.InterestsClickListener; |
+import org.chromium.chrome.browser.ntp.InterestsService.Interest; |
+import org.chromium.chrome.browser.widget.RoundedIconGenerator; |
+ |
+import java.io.IOException; |
+import java.io.InputStream; |
+import java.net.URL; |
+ |
+/** |
+ * Displays the interest name along with an image of it. This item can be clicked. |
+ */ |
+class InterestsItemView extends AppCompatTextView implements OnClickListener { |
+ |
+ private static final String TAG = "interests_item_view"; |
knn
2015/12/02 14:18:59
CamelCase
PEConn
2015/12/08 17:27:49
Done.
|
+ |
+ /** |
+ * Drawing-related values that can be shared between instances of InterestsItemView. |
+ */ |
+ static final class DrawingData { |
+ |
+ private final int mPadding; |
+ private final int mMinHeight; |
+ private final int mImageSize; |
+ private final int mTextSize; |
+ private final int mImageTextSize; |
+ |
+ /** |
+ * Initialize shared values used for drawing the image. |
+ * |
+ * @param context The view context in which the InterestsItemView will be drawn. |
+ */ |
+ DrawingData(Context context) { |
+ Resources res = context.getResources(); |
+ mPadding = res.getDimensionPixelOffset(R.dimen.ntp_list_item_padding); |
+ mMinHeight = res.getDimensionPixelSize(R.dimen.ntp_interest_item_min_height); |
+ mTextSize = res.getDimensionPixelSize(R.dimen.ntp_interest_item_text_size); |
+ mImageSize = res.getDimensionPixelSize(R.dimen.ntp_interest_item_image_size); |
+ mImageTextSize = res.getDimensionPixelSize(R.dimen.ntp_interest_item_image_text_size); |
+ } |
+ } |
+ |
+ private Interest mInterest; |
+ private DownloadImageTask mDownloadTask; |
+ |
+ private final Context mContext; |
+ private final DrawingData mDrawingData; |
+ private final LruCache<String, Drawable> mImageCache; |
+ private final InterestsClickListener mListener; |
+ private final RoundedIconGenerator mIconGenerator; |
+ |
+ /** |
+ * @param context The view context in which this item will be shown. |
+ * @param interest The interest to display. |
+ * @param listener Callback object for when a view is pressed. |
+ * @param imageCache A cache to store downloaded images. |
+ * @param drawingData Information about the view size. |
+ */ |
+ InterestsItemView(Context context, Interest interest, InterestsClickListener listener, |
+ LruCache<String, Drawable> imageCache, DrawingData drawingData) { |
+ super(context); |
+ |
+ mContext = context; |
+ mListener = listener; |
+ mImageCache = imageCache; |
+ mDrawingData = drawingData; |
+ |
+ setTextSize(TypedValue.COMPLEX_UNIT_PX, mDrawingData.mTextSize); |
+ setMinimumHeight(mDrawingData.mMinHeight); |
+ setGravity(Gravity.CENTER); |
+ setTextAlignment(View.TEXT_ALIGNMENT_CENTER); |
+ |
+ mIconGenerator = new RoundedIconGenerator( |
+ mDrawingData.mImageSize, |
+ mDrawingData.mImageSize, |
+ mDrawingData.mImageSize / 2, |
+ Color.GRAY, |
+ mDrawingData.mImageTextSize); |
+ |
+ setOnClickListener(this); |
+ |
+ reset(interest); |
+ } |
+ |
+ /** |
+ * Resets the view contents so that it can be reused in the grid view. |
+ * |
+ * @param interest The interest to display. |
+ */ |
+ public void reset(Interest interest) { |
+ // Reset Drawable state so ripples don't continue when the View is reused. |
+ jumpDrawablesToCurrentState(); |
+ |
+ // Exit early if this View is already displaying the Interest given. |
+ if (mInterest != null |
+ && TextUtils.equals(interest.getName(), mInterest.getName()) |
+ && TextUtils.equals(interest.getImageUrl(), mInterest.getImageUrl())) { |
+ mInterest = interest; |
+ return; |
+ } |
+ |
+ mInterest = interest; |
+ |
+ setText(mInterest.getName()); |
+ |
+ Drawable image = mImageCache.get(mInterest.getImageUrl()); |
+ if (image == null) { |
+ // Cache miss, download the image and use a temporary in the meantime. |
Bernhard Bauer
2015/12/02 14:09:47
Hm... if we are called for the same interest sever
Bernhard Bauer
2015/12/02 14:10:39
(I suspect this will eventually boil down to somet
PEConn
2015/12/08 17:27:49
Done.
|
+ mDownloadTask = new DownloadImageTask(mInterest.getImageUrl()); |
+ mDownloadTask.execute(); |
+ |
+ mIconGenerator.setBackgroundColor(getTileColor(mInterest.getName())); |
+ image = new BitmapDrawable(mContext.getResources(), |
+ mIconGenerator.generateIconForText(mInterest.getName())); |
+ } |
+ setImage(image); |
+ } |
+ |
+ /** |
+ * @return The image URL for the interest. |
+ */ |
+ public String getImageUrl() { |
+ return mInterest.getImageUrl(); |
+ } |
+ |
+ /** |
+ * @return The name of the interest. |
+ */ |
+ public String getName() { |
+ return mInterest.getName(); |
+ } |
+ |
+ private void setImage(Drawable image) { |
+ image.setBounds(new Rect(0, 0, mDrawingData.mImageSize, mDrawingData.mImageSize)); |
+ setCompoundDrawables(null, image, null, null); |
+ } |
+ |
+ private int getTileColor(String str) { |
+ // Rough copy of LetterTileDrawable.pickColor. |
+ // TODO(peconn): Move this to a more general class. |
+ TypedArray colors = mContext.getResources().obtainTypedArray(R.array.letter_tile_colors); |
+ return colors.getColor(Math.abs(str.hashCode() % colors.length()), Color.DKGRAY); |
+ } |
+ |
+ @Override |
+ public void onClick(View v) { |
+ mListener.onInterestClicked(getName()); |
+ } |
+ |
+ private void onImageDownloaded(Drawable image, String url) { |
+ if (image == null) { |
+ return; |
+ } |
+ |
+ mImageCache.put(url, image); |
+ |
+ // If the Interest this View is displaying has changed while downloading, do not update |
+ // the image. |
+ if (url == mInterest.getImageUrl()) { |
+ setImage(image); |
+ } |
+ } |
+ |
+ private class DownloadImageTask extends AsyncTask<Void, Void, Drawable> { |
+ |
+ private final String mUrl; |
+ |
+ public DownloadImageTask(String url) { |
+ mUrl = url; |
+ } |
+ |
+ @Override |
+ protected Drawable doInBackground(Void... voids) { |
+ // This is run on a background thread. |
+ try { |
+ // TODO(peconn): Replace this with something from the C++ Chrome stack. |
+ URL imageUrl = new URL(mUrl); |
+ InputStream in = imageUrl.openStream(); |
+ RoundedBitmapDrawable img = |
+ RoundedBitmapDrawableFactory.create(getResources(), in); |
+ |
+ // TODO(peconn): Modify image so it does not get stretched. |
+ img.setCircular(true); |
+ return img; |
+ } catch (IOException e) { |
+ Log.e(TAG, "Error downloading image: " + e.toString()); |
+ } |
+ return null; |
+ } |
+ |
+ @Override |
+ protected void onPostExecute(Drawable image) { |
+ // This is run on the main thread. |
+ onImageDownloaded(image, mUrl); |
+ } |
+ } |
+} |