/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* 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.intellij.openapi.vfs.encoding;
import com.intellij.icons.AllIcons;
import com.intellij.openapi.ui.DialogWrapper;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.util.SystemInfo;
import com.intellij.openapi.util.io.FileUtilRt;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.xml.util.XmlStringUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.nio.charset.Charset;
public class IncompatibleEncodingDialog extends DialogWrapper {
@NotNull private final VirtualFile virtualFile;
@NotNull private final Charset charset;
@NotNull private final EncodingUtil.Magic8 safeToReload;
@NotNull private final EncodingUtil.Magic8 safeToConvert;
IncompatibleEncodingDialog(@NotNull VirtualFile virtualFile,
@NotNull final Charset charset,
@NotNull EncodingUtil.Magic8 safeToReload,
@NotNull EncodingUtil.Magic8 safeToConvert) {
super(false);
this.virtualFile = virtualFile;
this.charset = charset;
this.safeToReload = safeToReload;
this.safeToConvert = safeToConvert;
setTitle(virtualFile.getName() + ": Reload or Convert to "+charset.displayName());
init();
}
@Nullable
@Override
protected JComponent createCenterPanel() {
JLabel label = new JLabel(XmlStringUtil.wrapInHtml(
"The encoding you've chosen ('" + charset.displayName() + "') may change the contents of '" + virtualFile.getName() + "'.<br>" +
"Do you want to<br>" +
"1. <b>Reload</b> the file from disk in the new encoding '" + charset.displayName() + "'" + warning(safeToReload) + " or<br>" +
"2. <b>Convert</b> the text and save in the new encoding" + warning(safeToConvert) + "?"));
label.setIcon(Messages.getQuestionIcon());
label.setIconTextGap(10);
return label;
}
@NotNull
private static String warning(@NotNull EncodingUtil.Magic8 isItSafe) {
return isItSafe == EncodingUtil.Magic8.ABSOLUTELY ? "" :
isItSafe == EncodingUtil.Magic8.WELL_IF_YOU_INSIST ? " (may change contents)" : " (contents will be changed)";
}
@NotNull
@Override
protected Action[] createActions() {
DialogWrapperAction reloadAction = new DialogWrapperAction("Reload") {
@Override
protected void doAction(ActionEvent e) {
if (safeToReload == EncodingUtil.Magic8.NO_WAY) {
Pair<Charset,String> detected = EncodingUtil.checkCanReload(virtualFile);
String failReason = detected.second;
Charset autoDetected = detected.first;
int res;
byte[] bom = virtualFile.getBOM();
if (bom != null) {
Messages
.showErrorDialog(XmlStringUtil.wrapInHtml(
"File '" + virtualFile.getName() + "' can't be reloaded in the '" + charset.displayName() + "' encoding.<br><br>" +
(failReason == null ? "" : "Why: "+ failReason +"<br>") +
(autoDetected == null ? "" : "Detected encoding: '"+ autoDetected.displayName()+"'")),
"Incompatible Encoding: " + charset.displayName()
);
res = -1;
}
else {
res = Messages
.showDialog(XmlStringUtil.wrapInHtml(
"File '" + virtualFile.getName() + "' most likely isn't stored in the '" + charset.displayName() + "' encoding." +
"<br><br>" +
(failReason == null ? "" : "Why: " + failReason + "<br>") +
(autoDetected == null ? "" : "Detected encoding: '" + autoDetected.displayName() + "'")),
"Incompatible Encoding: " + charset.displayName(), new String[]{"Reload anyway", "Cancel"}, 1,
AllIcons.General.WarningDialog);
}
if (res != 0) {
doCancelAction();
return;
}
}
close(RELOAD_EXIT_CODE);
}
};
if (!SystemInfo.isMac && safeToReload == EncodingUtil.Magic8.NO_WAY) {
reloadAction.putValue(Action.SMALL_ICON, AllIcons.General.Warning);
}
reloadAction.putValue(Action.MNEMONIC_KEY, (int)'R');
DialogWrapperAction convertAction = new DialogWrapperAction("Convert") {
@Override
protected void doAction(ActionEvent e) {
if (safeToConvert == EncodingUtil.Magic8.NO_WAY) {
String error = EncodingUtil.checkCanConvert(virtualFile);
int res = Messages.showDialog(XmlStringUtil.wrapInHtml(
"Please do not convert to '"+charset.displayName()+"'.<br><br>" +
(error == null ? "Encoding '" + charset.displayName() + "' does not support some characters from the text." : "Because "+error)),
"Incompatible Encoding: " + charset.displayName(), new String[]{"Convert anyway", "Cancel"}, 1,
AllIcons.General.WarningDialog);
if (res != 0) {
doCancelAction();
return;
}
}
close(CONVERT_EXIT_CODE);
}
@Override
public boolean isEnabled() {
return !FileUtilRt.isTooLarge(virtualFile.getLength());
}
};
if (!SystemInfo.isMac && safeToConvert == EncodingUtil.Magic8.NO_WAY) {
convertAction.putValue(Action.SMALL_ICON, AllIcons.General.Warning);
}
convertAction.putValue(Action.MNEMONIC_KEY, (int)'C');
Action cancelAction = getCancelAction();
cancelAction.putValue(DEFAULT_ACTION, Boolean.TRUE);
return new Action[]{reloadAction, convertAction, cancelAction};
}
static final int RELOAD_EXIT_CODE = 10;
static final int CONVERT_EXIT_CODE = 20;
}