// Copyright 2019 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.webview_shell;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.webkit.WebView;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
/**
* Activity to exercise transform animations on WebView.
*/
public class WebViewAnimationTestActivity extends Activity {
private static final String HTML = "<html>"
+ " <head>"
+ " <style type =\"text/css\">"
+ " .container {"
+ " display: grid;"
+ " grid-template-columns: 100px 100px 100px 100px 100px;"
+ " grid-template-rows: 100px 100px 100px 100px 100px;"
+ " }"
+ " .alt1 {"
+ " background-color: #aaffaa;"
+ " }"
+ " .alt2 {"
+ " background-color: #ff4545;"
+ " }"
+ " </style>"
+ " </head>"
+ " <body>"
+ " <div class=\"container\">"
+ " <div class=\"alt1\">00</div>"
+ " <div class=\"alt2\">01</div>"
+ " <div class=\"alt1\">02</div>"
+ " <div class=\"alt2\">03</div>"
+ " <div class=\"alt1\">04</div>"
+ " <div class=\"alt2\">05</div>"
+ " <div class=\"alt1\">06</div>"
+ " <div class=\"alt2\">07</div>"
+ " <div class=\"alt1\">08</div>"
+ " <div class=\"alt2\">09</div>"
+ " <div class=\"alt1\">10</div>"
+ " <div class=\"alt2\">11</div>"
+ " <div class=\"alt1\">12</div>"
+ " <div class=\"alt2\">13</div>"
+ " <div class=\"alt1\">14</div>"
+ " <div class=\"alt2\">15</div>"
+ " <div class=\"alt1\">16</div>"
+ " <div class=\"alt2\">17</div>"
+ " <div class=\"alt1\">18</div>"
+ " <div class=\"alt2\">19</div>"
+ " <div class=\"alt1\">20</div>"
+ " <div class=\"alt2\">21</div>"
+ " <div class=\"alt1\">22</div>"
+ " <div class=\"alt2\">23</div>"
+ " <div class=\"alt1\">24</div>"
+ " </div>"
+ " </body>"
+ "</html>";
private WebView mWebView;
private boolean mIsWindowHardwareAccelerated;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview_animation_test);
mWebView = (WebView) findViewById(R.id.webview);
mIsWindowHardwareAccelerated =
(getWindow().getAttributes().flags
| WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED)
!= 0;
mWebView.setBackgroundColor(0);
mWebView.loadDataWithBaseURL("http://foo.bar", HTML, "text/html", null, "http://foo.bar");
OnClickListener onClickListner = (View v) -> {
switch (v.getId()) {
case R.id.translate:
runTranslate();
break;
case R.id.scale:
runScale();
break;
case R.id.rotate:
runRotate();
break;
}
};
findViewById(R.id.scale).setOnClickListener(onClickListner);
findViewById(R.id.translate).setOnClickListener(onClickListner);
findViewById(R.id.rotate).setOnClickListener(onClickListner);
((SeekBar) findViewById(R.id.view_alpha))
.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar view, int progress, boolean fromUser) {
switch (view.getId()) {
case R.id.view_alpha:
mWebView.setAlpha(progress / 100f);
break;
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {}
});
CheckBox checkBox = ((CheckBox) findViewById(R.id.use_layer));
checkBox.setOnCheckedChangeListener(
(CompoundButton arg0, boolean checked) -> { setWebViewLayer(checked); });
setWebViewLayer(checkBox.isChecked());
}
private void runTranslate() {
if (mWebView.getTranslationX() == 0f) {
mWebView.animate().translationX(100f).translationY(100f);
} else {
mWebView.animate().translationX(0f).translationY(0f);
}
}
private void runScale() {
if (mWebView.getScaleX() == 1f) {
mWebView.animate().scaleX(.5f).scaleY(.5f);
} else {
mWebView.animate().scaleX(1f).scaleY(1f);
}
}
private void runRotate() {
if (mWebView.getRotationX() == 0f) {
mWebView.animate().rotationX(45f).rotationY(45f).rotation(90f);
} else {
mWebView.animate().rotationX(0f).rotationY(0f).rotation(0f);
}
}
private void setWebViewLayer(boolean isOnLayer) {
if (isOnLayer) {
mWebView.setLayerType(mIsWindowHardwareAccelerated ? View.LAYER_TYPE_HARDWARE
: View.LAYER_TYPE_SOFTWARE,
null);
} else {
mWebView.setLayerType(View.LAYER_TYPE_NONE, null);
}
}
}