mirror of https://github.com/M66B/FairEmail.git
M66B
5 years ago
parent
be5393ea50
commit
ac32344ebb
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package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2019 by Marcel Bokhorst (M66B)
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*/
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import android.content.Context;
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import android.net.Uri;
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import android.os.Build;
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import android.util.Pair;
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import android.view.View;
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import android.webkit.DownloadListener;
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import android.webkit.WebSettings;
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import android.webkit.WebView;
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import android.webkit.WebViewClient;
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public class WebViewEx extends WebView implements DownloadListener, View.OnLongClickListener {
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private int height;
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private IWebView intf;
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public WebViewEx(Context context) {
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super(context);
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setVerticalScrollBarEnabled(false);
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setHorizontalScrollBarEnabled(false);
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setDownloadListener(this);
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setOnLongClickListener(this);
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setWebViewClient(new WebViewClient() {
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public boolean shouldOverrideUrlLoading(WebView view, String url) {
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Log.i("Open url=" + url);
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return intf.onOpenLink(url);
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}
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@Override
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public void onScaleChanged(WebView view, float oldScale, float newScale) {
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Log.i("Changed scale=" + newScale);
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intf.onScaleChanged(newScale);
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}
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});
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
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setOnScrollChangeListener(new View.OnScrollChangeListener() {
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@Override
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public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
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intf.onScrollChange(scrollX, scrollY);
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}
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});
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WebSettings settings = getSettings();
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settings.setUseWideViewPort(true);
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settings.setLoadWithOverviewMode(true);
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settings.setBuiltInZoomControls(true);
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settings.setDisplayZoomControls(false);
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settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.TEXT_AUTOSIZING);
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settings.setAllowFileAccess(false);
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settings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
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}
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void init(
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int height, float size, Pair<Integer, Integer> position,
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float textSize, boolean monospaced,
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boolean show_images, boolean inline,
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IWebView intf) {
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Log.i("Init height=" + height + " size=" + size);
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this.height = (height == 0 ? getMinimumHeight() : height);
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setInitialScale(size == 0 ? 1 : Math.round(size * 100));
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if (position != null) {
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setScrollX(position.first);
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setScrollY(position.second);
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}
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WebSettings settings = getSettings();
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if (textSize != 0) {
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int dp = Helper.pixels2dp(getContext(), textSize);
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settings.setDefaultFontSize(Math.round(dp));
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settings.setDefaultFixedFontSize(Math.round(dp));
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}
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if (monospaced)
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settings.setStandardFontFamily("monospace");
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settings.setLoadsImagesAutomatically(show_images || inline);
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settings.setBlockNetworkLoads(!show_images);
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settings.setBlockNetworkImage(!show_images);
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this.intf = intf;
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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if (height > getMinimumHeight())
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super.onMeasure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST));
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else
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super.onMeasure(widthMeasureSpec, heightMeasureSpec); // Unspecified
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int mh = getMeasuredHeight();
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Log.i("Measured height=" + mh + " last=" + height);
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if (mh == 0)
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setMeasuredDimension(getMeasuredWidth(), height);
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}
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@Override
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protected void onSizeChanged(int w, int h, int ow, int oh) {
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super.onSizeChanged(w, h, ow, oh);
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Log.i("Size changed height=" + h);
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this.intf.onSizeChanged(w, h, ow, oh);
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}
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@Override
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public void onDownloadStart(
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String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
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Log.i("Download url=" + url + " mime type=" + mimetype);
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Uri uri = Uri.parse(url);
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if ("cid".equals(uri.getScheme()) || "data".equals(uri.getScheme()))
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return;
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Helper.view(getContext(), uri, true);
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}
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@Override
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public boolean onLongClick(View view) {
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WebView.HitTestResult result = ((WebView) view).getHitTestResult();
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if (result.getType() == WebView.HitTestResult.IMAGE_TYPE ||
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result.getType() == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE) {
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Log.i("Long press url=" + result.getExtra());
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Uri uri = Uri.parse(result.getExtra());
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if ("cid".equals(uri.getScheme()) || "data".equals(uri.getScheme()))
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return false;
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Helper.view(getContext(), uri, true);
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return true;
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}
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return false;
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}
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interface IWebView {
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void onSizeChanged(int w, int h, int ow, int oh);
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void onScaleChanged(float newScale);
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void onScrollChange(int scrollX, int scrollY);
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boolean onOpenLink(String url);
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}
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}
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