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author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | ba6d7b853c32ad6c3be26c443daa61f322bcfdc2 (patch) | |
tree | 1bb508b3b9cecf0b9f69271d4c4e953a5b5556f5 /src/com/android/browser/FakeWebView.java | |
download | android_packages_apps_Gello-ba6d7b853c32ad6c3be26c443daa61f322bcfdc2.tar.gz android_packages_apps_Gello-ba6d7b853c32ad6c3be26c443daa61f322bcfdc2.tar.bz2 android_packages_apps_Gello-ba6d7b853c32ad6c3be26c443daa61f322bcfdc2.zip |
Initial Contribution
Diffstat (limited to 'src/com/android/browser/FakeWebView.java')
-rw-r--r-- | src/com/android/browser/FakeWebView.java | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/com/android/browser/FakeWebView.java b/src/com/android/browser/FakeWebView.java new file mode 100644 index 00000000..200f86a0 --- /dev/null +++ b/src/com/android/browser/FakeWebView.java @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2008 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.graphics.Canvas; +import android.graphics.Color; +import android.graphics.Picture; +import android.util.AttributeSet; +import android.view.View; +import android.webkit.WebView; +import android.widget.ImageView; + +import android.util.Log; + +/** + * This class is used by ImageAdapter to draw a representation of each tab. It + * overrides ImageView so it can be used for the new tab image as well. + */ +public class FakeWebView extends ImageView { + private TabControl.Tab mTab; + private boolean mUsesResource; + + private class Listener implements WebView.PictureListener { + public void onNewPicture(WebView view, Picture p) { + FakeWebView.this.invalidate(); + } + }; + + public FakeWebView(Context context) { + this(context, null); + } + + public FakeWebView(Context context, AttributeSet attrs) { + this(context, attrs, 0); + } + + public FakeWebView(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + } + + @Override + protected void onDraw(Canvas canvas) { + if (mUsesResource) { + super.onDraw(canvas); + } else { + // Always draw white behind the picture just in case the picture + // draws nothing. + // FIXME: We used to draw white only when the WebView was null but + // sometimes the picture was empty. So now we always draw white. It + // would be nice to know if the picture is empty so we can avoid + // drawing white. + canvas.drawColor(Color.WHITE); + if (mTab != null) { + final WebView w = mTab.getTopWindow(); + if (w != null) { + Picture p = w.capturePicture(); + canvas.save(); + float scale = getWidth() * w.getScale() / w.getWidth(); + canvas.scale(scale, scale); + canvas.translate(-w.getScrollX(), -w.getScrollY()); + canvas.drawPicture(p); + canvas.restore(); + } + } + } + } + + @Override + public void setImageResource(int resId) { + mUsesResource = true; + mTab = null; + super.setImageResource(resId); + } + + /** + * Set a WebView for this FakeWebView to represent. + * @param v WebView whose picture and other data will be used in onDraw. + */ + public void setTab(TabControl.Tab t) { + mUsesResource = false; + mTab = t; + if (t != null && t.getWebView() != null) { + Listener l = new Listener(); + t.getWebView().setPictureListener(l); + if (t.getSubWebView() != null) { + t.getSubWebView().setPictureListener(l); + } + } + } +} |