mirror of https://github.com/M66B/FairEmail.git
325 lines
13 KiB
Java
325 lines
13 KiB
Java
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 2018-2021 by Marcel Bokhorst (M66B)
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*/
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import android.content.ClipData;
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import android.content.ClipboardManager;
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import android.content.Context;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.text.Html;
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import android.text.SpannableStringBuilder;
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import android.text.Spanned;
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import android.text.style.QuoteSpan;
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import android.util.AttributeSet;
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import android.view.View;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputConnection;
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import androidx.core.view.inputmethod.EditorInfoCompat;
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import androidx.core.view.inputmethod.InputConnectionCompat;
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import androidx.core.view.inputmethod.InputContentInfoCompat;
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import org.jsoup.nodes.Document;
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import java.util.concurrent.ExecutorService;
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public class EditTextCompose extends FixedEditText {
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private boolean raw = false;
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private ISelection selectionListener = null;
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private IInputContentListener inputContentListener = null;
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private static final ExecutorService executor =
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Helper.getBackgroundExecutor(1, "paste");
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public EditTextCompose(Context context) {
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super(context);
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Helper.setKeyboardIncognitoMode(this, context);
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}
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public EditTextCompose(Context context, AttributeSet attrs) {
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super(context, attrs);
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Helper.setKeyboardIncognitoMode(this, context);
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}
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public EditTextCompose(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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Helper.setKeyboardIncognitoMode(this, context);
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}
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@Override
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public Parcelable onSaveInstanceState() {
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Parcelable superState = super.onSaveInstanceState();
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return new SavedState(superState, this.raw);
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}
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@Override
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public void onRestoreInstanceState(Parcelable state) {
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SavedState savedState = (SavedState) state;
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super.onRestoreInstanceState(savedState.getSuperState());
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setRaw(savedState.getRaw());
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}
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@Override
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protected void onAttachedToWindow() {
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// Spellchecker workaround
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boolean enabled = isEnabled();
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super.setEnabled(true);
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super.onAttachedToWindow();
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super.setEnabled(enabled);
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}
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public void setRaw(boolean raw) {
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this.raw = raw;
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}
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public boolean isRaw() {
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return raw;
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}
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@Override
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protected void onSelectionChanged(int selStart, int selEnd) {
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super.onSelectionChanged(selStart, selEnd);
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if (selectionListener != null)
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selectionListener.onSelected(hasSelection());
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}
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@Override
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public boolean onTextContextMenuItem(int id) {
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try {
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if (id == android.R.id.copy) {
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int start = getSelectionStart();
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int end = getSelectionEnd();
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if (start > end) {
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int s = start;
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start = end;
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end = s;
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}
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Context context = getContext();
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ClipboardManager cbm = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
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if (start != end && cbm != null) {
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CharSequence selected = getEditableText().subSequence(start, end);
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if (selected instanceof Spanned) {
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String html = HtmlHelper.toHtml((Spanned) selected, context);
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cbm.setPrimaryClip(ClipData.newHtmlText(context.getString(R.string.app_name), selected, html));
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setSelection(end);
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return false;
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}
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}
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} else if (id == android.R.id.paste) {
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final Context context = getContext();
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ClipboardManager cbm = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
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if (cbm == null || !cbm.hasPrimaryClip())
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return false;
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ClipData.Item item = cbm.getPrimaryClip().getItemAt(0);
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final String html;
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String h = (raw ? null : item.getHtmlText());
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if (h == null) {
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CharSequence text = item.getText();
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if (text == null)
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return false;
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if (raw)
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html = text.toString();
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else
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html = "<div>" + HtmlHelper.formatPre(text.toString(), false) + "</div>";
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} else
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html = h;
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final int colorPrimary = Helper.resolveColor(context, R.attr.colorPrimary);
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final int colorBlockquote = Helper.resolveColor(context, R.attr.colorBlockquote, colorPrimary);
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final int quoteGap = context.getResources().getDimensionPixelSize(R.dimen.quote_gap_size);
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final int quoteStripe = context.getResources().getDimensionPixelSize(R.dimen.quote_stripe_width);
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executor.submit(new Runnable() {
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@Override
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public void run() {
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try {
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SpannableStringBuilder ssb;
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if (raw)
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ssb = new SpannableStringBuilderEx(html);
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else {
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Document document = HtmlHelper.sanitizeCompose(context, html, false);
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Spanned paste = HtmlHelper.fromDocument(context, document, new Html.ImageGetter() {
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@Override
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public Drawable getDrawable(String source) {
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return ImageHelper.decodeImage(context,
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-1, source, true, 0, 1.0f, EditTextCompose.this);
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}
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}, null);
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ssb = new SpannableStringBuilderEx(paste);
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QuoteSpan[] spans = ssb.getSpans(0, ssb.length(), QuoteSpan.class);
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for (QuoteSpan span : spans) {
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QuoteSpan q;
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.P)
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q = new QuoteSpan(colorBlockquote);
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else
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q = new QuoteSpan(colorBlockquote, quoteStripe, quoteGap);
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ssb.setSpan(q,
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ssb.getSpanStart(span),
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ssb.getSpanEnd(span),
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ssb.getSpanFlags(span));
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ssb.removeSpan(span);
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}
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}
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ApplicationEx.getMainHandler().post(new Runnable() {
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@Override
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public void run() {
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try {
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int start = getSelectionStart();
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int end = getSelectionEnd();
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if (start < 0)
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start = 0;
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if (end < 0)
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end = 0;
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if (start > end) {
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int tmp = start;
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start = end;
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end = tmp;
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}
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if (start == end)
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getText().insert(start, ssb);
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else
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getText().replace(start, end, ssb);
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} catch (Throwable ex) {
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Log.e(ex);
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/*
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java.lang.RuntimeException: PARAGRAPH span must start at paragraph boundary
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at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:619)
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at android.text.SpannableStringBuilder.change(SpannableStringBuilder.java:391)
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at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:496)
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at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:454)
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at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:33)
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at android.widget.TextView.paste(TextView.java:8891)
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at android.widget.TextView.onTextContextMenuItem(TextView.java:8706)
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*/
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}
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}
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});
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} catch (Throwable ex) {
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Log.e(ex);
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}
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}
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});
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return true;
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}
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return super.onTextContextMenuItem(id);
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} catch (Throwable ex) {
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Log.e(ex);
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return false;
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}
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}
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@Override
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public InputConnection onCreateInputConnection(EditorInfo editorInfo) {
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//https://developer.android.com/guide/topics/text/image-keyboard
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InputConnection ic = super.onCreateInputConnection(editorInfo);
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if (ic == null)
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return null;
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EditorInfoCompat.setContentMimeTypes(editorInfo, new String[]{"image/*"});
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return InputConnectionCompat.createWrapper(ic, editorInfo, new InputConnectionCompat.OnCommitContentListener() {
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@Override
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public boolean onCommitContent(InputContentInfoCompat info, int flags, Bundle opts) {
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Log.i("Uri=" + info.getContentUri());
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try {
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if (inputContentListener == null)
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throw new IllegalArgumentException("InputContent listener not set");
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1 &&
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(flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0)
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info.requestPermission();
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inputContentListener.onInputContent(info.getContentUri());
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return true;
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} catch (Throwable ex) {
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Log.w(ex);
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return false;
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}
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}
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});
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}
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void setInputContentListener(IInputContentListener listener) {
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this.inputContentListener = listener;
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}
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interface IInputContentListener {
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void onInputContent(Uri uri);
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}
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void setSelectionListener(ISelection listener) {
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this.selectionListener = listener;
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}
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interface ISelection {
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void onSelected(boolean selection);
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}
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static class SavedState extends View.BaseSavedState {
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private boolean raw;
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private SavedState(Parcelable superState, boolean raw) {
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super(superState);
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this.raw = raw;
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}
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private SavedState(Parcel in) {
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super(in);
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raw = (in.readInt() != 0);
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}
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public boolean getRaw() {
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return this.raw;
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}
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@Override
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public void writeToParcel(Parcel destination, int flags) {
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super.writeToParcel(destination, flags);
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destination.writeInt(raw ? 1 : 0);
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}
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public static final Parcelable.Creator<SavedState> CREATOR = new Creator<SavedState>() {
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public SavedState createFromParcel(Parcel in) {
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return new SavedState(in);
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}
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public SavedState[] newArray(int size) {
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return new SavedState[size];
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}
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};
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}
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}
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