1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/home/TwoLinePageRow.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,238 @@
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 java.lang.ref.WeakReference;
1.12 +
1.13 +import org.mozilla.gecko.R;
1.14 +import org.mozilla.gecko.Tab;
1.15 +import org.mozilla.gecko.Tabs;
1.16 +import org.mozilla.gecko.db.BrowserContract.Combined;
1.17 +import org.mozilla.gecko.db.BrowserDB.URLColumns;
1.18 +import org.mozilla.gecko.favicons.Favicons;
1.19 +import org.mozilla.gecko.favicons.OnFaviconLoadedListener;
1.20 +import org.mozilla.gecko.util.ThreadUtils;
1.21 +import org.mozilla.gecko.widget.FaviconView;
1.22 +
1.23 +import android.content.Context;
1.24 +import android.database.Cursor;
1.25 +import android.graphics.Bitmap;
1.26 +import android.text.TextUtils;
1.27 +import android.util.AttributeSet;
1.28 +import android.view.Gravity;
1.29 +import android.view.LayoutInflater;
1.30 +import android.widget.LinearLayout;
1.31 +import android.widget.TextView;
1.32 +
1.33 +public class TwoLinePageRow extends LinearLayout
1.34 + implements Tabs.OnTabsChangedListener {
1.35 +
1.36 + protected static final int NO_ICON = 0;
1.37 +
1.38 + private final TextView mTitle;
1.39 + private final TextView mUrl;
1.40 +
1.41 + private int mSwitchToTabIconId;
1.42 + private int mPageTypeIconId;
1.43 +
1.44 + private final FaviconView mFavicon;
1.45 +
1.46 + private boolean mShowIcons;
1.47 + private int mLoadFaviconJobId = Favicons.NOT_LOADING;
1.48 +
1.49 + // Only holds a reference to the FaviconView itself, so if the row gets
1.50 + // discarded while a task is outstanding, we'll leak less memory.
1.51 + private static class UpdateViewFaviconLoadedListener implements OnFaviconLoadedListener {
1.52 + private final WeakReference<FaviconView> view;
1.53 + public UpdateViewFaviconLoadedListener(FaviconView view) {
1.54 + this.view = new WeakReference<FaviconView>(view);
1.55 + }
1.56 +
1.57 + @Override
1.58 + public void onFaviconLoaded(String url, String faviconURL, Bitmap favicon) {
1.59 + FaviconView v = view.get();
1.60 + if (v == null) {
1.61 + // Guess we stuck around after the TwoLinePageRow went away.
1.62 + return;
1.63 + }
1.64 +
1.65 + if (favicon == null) {
1.66 + v.showDefaultFavicon();
1.67 + return;
1.68 + }
1.69 +
1.70 + v.updateImage(favicon, faviconURL);
1.71 + }
1.72 + }
1.73 +
1.74 + // Listener for handling Favicon loads.
1.75 + private final OnFaviconLoadedListener mFaviconListener;
1.76 +
1.77 + // The URL for the page corresponding to this view.
1.78 + private String mPageUrl;
1.79 +
1.80 + public TwoLinePageRow(Context context) {
1.81 + this(context, null);
1.82 + }
1.83 +
1.84 + public TwoLinePageRow(Context context, AttributeSet attrs) {
1.85 + super(context, attrs);
1.86 +
1.87 + setGravity(Gravity.CENTER_VERTICAL);
1.88 +
1.89 + LayoutInflater.from(context).inflate(R.layout.two_line_page_row, this);
1.90 + mTitle = (TextView) findViewById(R.id.title);
1.91 + mUrl = (TextView) findViewById(R.id.url);
1.92 +
1.93 + mSwitchToTabIconId = NO_ICON;
1.94 + mPageTypeIconId = NO_ICON;
1.95 + mShowIcons = true;
1.96 +
1.97 + mFavicon = (FaviconView) findViewById(R.id.icon);
1.98 + mFaviconListener = new UpdateViewFaviconLoadedListener(mFavicon);
1.99 + }
1.100 +
1.101 + @Override
1.102 + protected void onAttachedToWindow() {
1.103 + Tabs.registerOnTabsChangedListener(this);
1.104 + }
1.105 +
1.106 + @Override
1.107 + protected void onDetachedFromWindow() {
1.108 + // Tabs' listener array is safe to modify during use: its
1.109 + // iteration pattern is based on snapshots.
1.110 + Tabs.unregisterOnTabsChangedListener(this);
1.111 + }
1.112 +
1.113 + @Override
1.114 + public void onTabChanged(final Tab tab, final Tabs.TabEvents msg, final Object data) {
1.115 + switch(msg) {
1.116 + case ADDED:
1.117 + case CLOSED:
1.118 + case LOCATION_CHANGE:
1.119 + updateDisplayedUrl();
1.120 + break;
1.121 + }
1.122 + }
1.123 +
1.124 + private void setTitle(String text) {
1.125 + mTitle.setText(text);
1.126 + }
1.127 +
1.128 + protected void setUrl(String text) {
1.129 + mUrl.setText(text);
1.130 + }
1.131 +
1.132 + protected void setUrl(int stringId) {
1.133 + mUrl.setText(stringId);
1.134 + }
1.135 +
1.136 + protected String getUrl() {
1.137 + return mPageUrl;
1.138 + }
1.139 +
1.140 + protected void setSwitchToTabIcon(int iconId) {
1.141 + if (mSwitchToTabIconId == iconId) {
1.142 + return;
1.143 + }
1.144 +
1.145 + mSwitchToTabIconId = iconId;
1.146 + mUrl.setCompoundDrawablesWithIntrinsicBounds(mSwitchToTabIconId, 0, mPageTypeIconId, 0);
1.147 + }
1.148 +
1.149 + private void setPageTypeIcon(int iconId) {
1.150 + if (mPageTypeIconId == iconId) {
1.151 + return;
1.152 + }
1.153 +
1.154 + mPageTypeIconId = iconId;
1.155 + mUrl.setCompoundDrawablesWithIntrinsicBounds(mSwitchToTabIconId, 0, mPageTypeIconId, 0);
1.156 + }
1.157 +
1.158 + /**
1.159 + * Stores the page URL, so that we can use it to replace "Switch to tab" if the open
1.160 + * tab changes or is closed.
1.161 + */
1.162 + private void updateDisplayedUrl(String url) {
1.163 + mPageUrl = url;
1.164 + updateDisplayedUrl();
1.165 + }
1.166 +
1.167 + /**
1.168 + * Replaces the page URL with "Switch to tab" if there is already a tab open with that URL.
1.169 + * Only looks for tabs that are either private or non-private, depending on the current
1.170 + * selected tab.
1.171 + */
1.172 + protected void updateDisplayedUrl() {
1.173 + boolean isPrivate = Tabs.getInstance().getSelectedTab().isPrivate();
1.174 + Tab tab = Tabs.getInstance().getFirstTabForUrl(mPageUrl, isPrivate);
1.175 + if (!mShowIcons || tab == null) {
1.176 + setUrl(mPageUrl);
1.177 + setSwitchToTabIcon(NO_ICON);
1.178 + } else {
1.179 + setUrl(R.string.switch_to_tab);
1.180 + setSwitchToTabIcon(R.drawable.ic_url_bar_tab);
1.181 + }
1.182 + }
1.183 +
1.184 + public void setShowIcons(boolean showIcons) {
1.185 + mShowIcons = showIcons;
1.186 + }
1.187 +
1.188 + public void updateFromCursor(Cursor cursor) {
1.189 + if (cursor == null) {
1.190 + return;
1.191 + }
1.192 +
1.193 + int titleIndex = cursor.getColumnIndexOrThrow(URLColumns.TITLE);
1.194 + final String title = cursor.getString(titleIndex);
1.195 +
1.196 + int urlIndex = cursor.getColumnIndexOrThrow(URLColumns.URL);
1.197 + final String url = cursor.getString(urlIndex);
1.198 +
1.199 + if (mShowIcons) {
1.200 + final int bookmarkIdIndex = cursor.getColumnIndex(Combined.BOOKMARK_ID);
1.201 + if (bookmarkIdIndex != -1) {
1.202 + final long bookmarkId = cursor.getLong(bookmarkIdIndex);
1.203 + final int displayIndex = cursor.getColumnIndex(Combined.DISPLAY);
1.204 +
1.205 + final int display;
1.206 + if (displayIndex != -1) {
1.207 + display = cursor.getInt(displayIndex);
1.208 + } else {
1.209 + display = Combined.DISPLAY_NORMAL;
1.210 + }
1.211 +
1.212 + // The bookmark id will be 0 (null in database) when the url
1.213 + // is not a bookmark.
1.214 + if (bookmarkId == 0) {
1.215 + setPageTypeIcon(NO_ICON);
1.216 + } else if (display == Combined.DISPLAY_READER) {
1.217 + setPageTypeIcon(R.drawable.ic_url_bar_reader);
1.218 + } else {
1.219 + setPageTypeIcon(R.drawable.ic_url_bar_star);
1.220 + }
1.221 + } else {
1.222 + setPageTypeIcon(NO_ICON);
1.223 + }
1.224 + }
1.225 +
1.226 + // Use the URL instead of an empty title for consistency with the normal URL
1.227 + // bar view - this is the equivalent of getDisplayTitle() in Tab.java
1.228 + setTitle(TextUtils.isEmpty(title) ? url : title);
1.229 +
1.230 + // No point updating the below things if URL has not changed. Prevents evil Favicon flicker.
1.231 + if (url.equals(mPageUrl)) {
1.232 + return;
1.233 + }
1.234 +
1.235 + // Blank the Favicon, so we don't show the wrong Favicon if we scroll and miss DB.
1.236 + mFavicon.clearImage();
1.237 + mLoadFaviconJobId = Favicons.getSizedFaviconForPageFromLocal(url, mFaviconListener);
1.238 +
1.239 + updateDisplayedUrl(url);
1.240 + }
1.241 +}
