UI revision for tabbed browsing
bug # http://b/issue?id=2712871
separated tab bar from url bar
subclassed webview for scroll listener
added search button support
Change-Id: Ib9bd0c7e815e2ef08cdd20334daf61263cd52938
diff --git a/src/com/android/browser/ScrollWebView.java b/src/com/android/browser/ScrollWebView.java
new file mode 100644
index 0000000..16404aa
--- /dev/null
+++ b/src/com/android/browser/ScrollWebView.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.browser;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.webkit.WebView;
+
+import java.util.Map;
+
+/**
+ * Manage WebView scroll events
+ */
+public class ScrollWebView extends WebView {
+
+ private ScrollListener mScrollListener;
+ private boolean mIsCancelled;
+ private Runnable mScrollRunnable;
+
+ /**
+ * @param context
+ * @param attrs
+ * @param defStyle
+ * @param javascriptInterfaces
+ */
+ public ScrollWebView(Context context, AttributeSet attrs, int defStyle,
+ Map<String, Object> javascriptInterfaces, boolean privateBrowsing) {
+ super(context, attrs, defStyle, javascriptInterfaces, privateBrowsing);
+ }
+
+ /**
+ * @param context
+ * @param attrs
+ * @param defStyle
+ */
+ public ScrollWebView(Context context, AttributeSet attrs, int defStyle,
+ boolean privateBrowsing) {
+ super(context, attrs, defStyle, privateBrowsing);
+ }
+
+ /**
+ * @param context
+ * @param attrs
+ */
+ public ScrollWebView(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ }
+
+ /**
+ * @param context
+ */
+ public ScrollWebView(Context context) {
+ super(context);
+ }
+
+ @Override
+ public void setEmbeddedTitleBar(final View title) {
+ super.setEmbeddedTitleBar(title);
+ if (title != null && mScrollListener != null) {
+ // allow the scroll listener to initialize its state
+ post(new Runnable() {
+ @Override
+ public void run() {
+ mScrollListener.onScroll((title.getHeight() == 0 ||
+ getVisibleTitleHeight() > 0));
+ }
+ });
+ }
+ }
+
+ @Override
+ public void stopScroll() {
+ mIsCancelled = true;
+ super.stopScroll();
+ }
+
+ @Override
+ protected void onScrollChanged(int l, final int t, int ol, int ot) {
+ super.onScrollChanged(l, t, ol, ot);
+ if (!mIsCancelled) {
+ post(mScrollRunnable);
+ } else {
+ mIsCancelled = false;
+ }
+ }
+
+ void setScrollListener(ScrollListener l) {
+ mScrollListener = l;
+ if (mScrollListener != null) {
+ mScrollRunnable = new Runnable() {
+ public void run() {
+ if (!mIsCancelled) {
+ mScrollListener.onScroll(getVisibleTitleHeight() > 0);
+ }
+ }
+ };
+ }
+ }
+
+ // callback for scroll events
+
+ interface ScrollListener {
+ public void onScroll(boolean titleVisible);
+ }
+
+}