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/*
* Copyright (C) 2017 The LineageOS 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 org.lineageos.jelly.webview;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.support.v4.util.ArrayMap;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.EditText;
import android.widget.ProgressBar;
import org.lineageos.jelly.utils.PrefsUtils;
import org.lineageos.jelly.utils.UrlUtils;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class WebViewExt extends WebView {
private static final String TAG = "WebViewExt";
private static final String DESKTOP_DEVICE = "X11; Linux x86_64";
private static final String DESKTOP_USER_AGENT_FALLBACK =
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2049.0 Safari/537.36";
private WebViewExtActivity mActivity;
private String mMobileUserAgent;
private String mDesktopUserAgent;
private boolean mIncognito;
private boolean mDesktopMode;
private String mLastLoadedUrl;
private final Map<String, String> mRequestHeaders = new ArrayMap<>();
private static final String HEADER_DNT = "DNT";
public WebViewExt(Context context) {
super(context);
}
public WebViewExt(Context context, AttributeSet attrs) {
super(context, attrs);
}
public WebViewExt(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
public void loadUrl(String url) {
mLastLoadedUrl = url;
followUrl(url);
}
void followUrl(String url) {
String fixedUrl = UrlUtils.smartUrlFilter(url);
if (fixedUrl != null) {
super.loadUrl(fixedUrl, mRequestHeaders);
return;
}
String templateUri = PrefsUtils.getSearchEngine(mActivity);
fixedUrl = UrlUtils.getFormattedUri(templateUri, url);
if (fixedUrl != null) {
super.loadUrl(fixedUrl, mRequestHeaders);
}
}
public String getLastLoadedUrl() {
return mLastLoadedUrl;
}
private void setup() {
getSettings().setJavaScriptEnabled(PrefsUtils.getJavascript(mActivity));
getSettings().setJavaScriptCanOpenWindowsAutomatically(PrefsUtils.getJavascript(mActivity));
getSettings().setGeolocationEnabled(PrefsUtils.getLocation(mActivity));
getSettings().setSaveFormData(!mIncognito && PrefsUtils.getSaveFormData(mActivity));
getSettings().setBuiltInZoomControls(true);
getSettings().setDisplayZoomControls(false);
getSettings().setDomStorageEnabled(true);
setWebViewClient(new WebClient());
setOnLongClickListener(new OnLongClickListener() {
boolean shouldAllowDownload;
@Override
public boolean onLongClick(View v) {
HitTestResult result = getHitTestResult();
switch (result.getType()) {
case HitTestResult.IMAGE_TYPE:
case HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
shouldAllowDownload = true;
case HitTestResult.SRC_ANCHOR_TYPE:
mActivity.showSheetMenu(result.getExtra(), shouldAllowDownload);
shouldAllowDownload = false;
return true;
}
return false;
}
});
setDownloadListener((url, userAgent, contentDescription, mimeType, contentLength) ->
mActivity.downloadFileAsk(url, contentDescription, mimeType));
// Mobile: Remove "wv" from the WebView's user agent. Some websites don't work
// properly if the browser reports itself as a simple WebView.
// Desktop: Generate the desktop user agent starting from the mobile one so that
// we always report the current engine version.
Pattern pattern = Pattern.compile("([^)]+ \\()([^)]+)(\\) .*)");
Matcher matcher = pattern.matcher(getSettings().getUserAgentString());
if (matcher.matches()) {
String mobileDevice = matcher.group(2).replace("; wv", "");
mMobileUserAgent = matcher.group(1) + mobileDevice + matcher.group(3);
mDesktopUserAgent = matcher.group(1) + DESKTOP_DEVICE + matcher.group(3)
.replace(" Mobile ", " ");
getSettings().setUserAgentString(mMobileUserAgent);
} else {
Log.e(TAG, "Couldn't parse the user agent");
mMobileUserAgent = getSettings().getUserAgentString();
mDesktopUserAgent = DESKTOP_USER_AGENT_FALLBACK;
}
if (PrefsUtils.getDoNotTrack(mActivity)) {
mRequestHeaders.put(HEADER_DNT, "1");
}
}
public void init(WebViewExtActivity activity, EditText editText,
ProgressBar progressBar, boolean incognito) {
mActivity = activity;
mIncognito = incognito;
ChromeClient chromeClient = new ChromeClient(activity, incognito);
chromeClient.bindEditText(editText);
chromeClient.bindProgressBar(progressBar);
setWebChromeClient(chromeClient);
setup();
}
public Bitmap getSnap() {
measure(MeasureSpec.makeMeasureSpec(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED),
MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
layout(0, 0, getMeasuredWidth(), getMeasuredHeight());
setDrawingCacheEnabled(true);
buildDrawingCache();
int size = getMeasuredWidth() > getMeasuredHeight() ?
getMeasuredHeight() : getMeasuredWidth();
Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
int height = bitmap.getHeight();
canvas.drawBitmap(bitmap, 0, height, paint);
draw(canvas);
return bitmap;
}
public boolean isIncognito() {
return mIncognito;
}
public void setDesktopMode(boolean desktopMode) {
mDesktopMode = desktopMode;
WebSettings settings = getSettings();
settings.setUserAgentString(desktopMode ? mDesktopUserAgent : mMobileUserAgent);
settings.setUseWideViewPort(desktopMode);
settings.setLoadWithOverviewMode(desktopMode);
reload();
}
public boolean isDesktopMode() {
return mDesktopMode;
}
Map<String, String> getRequestHeaders() {
return mRequestHeaders;
}
}
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