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https://github.com/eclipse-cdt/cdt
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[api] [163820] Allow encodings to be queried for IRemoteFile and implementations for encodings through a remote file encoding manager.
This commit is contained in:
Kushal Munir
parent
f3942b9c1b
commit
9b25d62b51
1 changed files with 195 additions and 9 deletions
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@ -15,9 +15,12 @@
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********************************************************************************/
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package org.eclipse.rse.files.ui.propertypages;
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import java.nio.charset.Charset;
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import java.nio.charset.IllegalCharsetNameException;
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import java.text.DateFormat;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.List;
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import org.eclipse.core.runtime.NullProgressMonitor;
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import org.eclipse.rse.model.ISystemResourceChangeEvents;
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@ -26,17 +29,25 @@ import org.eclipse.rse.services.files.RemoteFileSecurityException;
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import org.eclipse.rse.subsystems.files.core.SystemFileResources;
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import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFile;
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import org.eclipse.rse.subsystems.files.core.subsystems.IVirtualRemoteFile;
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import org.eclipse.rse.subsystems.files.core.subsystems.RemoteFileEncodingManager;
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import org.eclipse.rse.ui.ISystemMessages;
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import org.eclipse.rse.ui.RSEUIPlugin;
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import org.eclipse.rse.ui.SystemWidgetHelpers;
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import org.eclipse.rse.ui.propertypages.SystemBasePropertyPage;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.KeyAdapter;
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import org.eclipse.swt.events.KeyEvent;
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import org.eclipse.swt.events.SelectionAdapter;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.widgets.Button;
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import org.eclipse.swt.widgets.Combo;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.Group;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.ui.ide.IDEEncoding;
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/**
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@ -53,7 +64,7 @@ public class SystemFilePropertyPage extends SystemBasePropertyPage
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//protected Button cbReadablePrompt, cbWritablePrompt;
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protected Button cbReadonlyPrompt, cbHiddenPrompt;
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protected Label labelName, labelType, labelPath, labelSize, labelModified, labelReadable, labelWritable, labelHidden;
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protected Button inheritedEncodingButton, otherEncodingButton;
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protected Button defaultEncodingButton, otherEncodingButton;
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protected Combo otherEncodingCombo;
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protected String errorMessage;
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protected boolean initDone = false;
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@ -158,6 +169,79 @@ public class SystemFilePropertyPage extends SystemBasePropertyPage
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composite_prompts, null, SystemFileResources.RESID_PP_FILE_HIDDEN_LABEL, SystemFileResources.RESID_PP_FILE_HIDDEN_TOOLTIP);
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//((GridData)cbHiddenPrompt.getLayoutData()).horizontalSpan = nbrColumns;
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}
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// check if an encodings field should be added. Add only if the subsystem
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// indicates that it supports encodings
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if (file.getParentRemoteFileSubSystem().supportsEncoding()) {
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// encoding field
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Group encodingGroup = SystemWidgetHelpers.createGroupComposite(composite_prompts, 2, SystemFileResources.RESID_PP_FILE_ENCODING_GROUP_LABEL);
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GridData data = new GridData();
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data.horizontalAlignment = SWT.BEGINNING;
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data.grabExcessHorizontalSpace = true;
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data.verticalAlignment = SWT.BEGINNING;
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data.grabExcessVerticalSpace = false;
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encodingGroup.setLayoutData(data);
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SelectionAdapter buttonSelectionListener = new SelectionAdapter() {
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public void widgetSelected(SelectionEvent e) {
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updateEncodingGroupState(defaultEncodingButton.getSelection());
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updateValidState();
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}
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};
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// default encoding field
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defaultEncoding = file.getParentRemoteFileSubSystem().getRemoteEncoding();
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String defaultEncodingLabel = SystemFileResources.RESID_PP_FILE_ENCODING_DEFAULT_LABEL;
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int idx = defaultEncodingLabel.indexOf('%');
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if (idx != -1) {
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defaultEncodingLabel = defaultEncodingLabel.substring(0, idx) + file.getParentRemoteFileSubSystem().getRemoteEncoding() + defaultEncodingLabel.substring(idx+2);
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}
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defaultEncodingButton = SystemWidgetHelpers.createRadioButton(encodingGroup, null, defaultEncodingLabel, SystemFileResources.RESID_PP_FILE_ENCODING_DEFAULT_TOOLTIP);
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data = new GridData();
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data.horizontalSpan = 2;
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defaultEncodingButton.setLayoutData(data);
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defaultEncodingButton.addSelectionListener(buttonSelectionListener);
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// other encoding field
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otherEncodingButton = SystemWidgetHelpers.createRadioButton(encodingGroup, null, SystemFileResources.RESID_PP_FILE_ENCODING_OTHER_LABEL, SystemFileResources.RESID_PP_FILE_ENCODING_OTHER_TOOLTIP);
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otherEncodingButton.addSelectionListener(buttonSelectionListener);
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// other encoding combo
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otherEncodingCombo = SystemWidgetHelpers.createCombo(encodingGroup, null, SystemFileResources.RESID_PP_FILE_ENCODING_ENTER_TOOLTIP);
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data = new GridData();
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data.horizontalAlignment = SWT.BEGINNING;
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data.grabExcessHorizontalSpace = true;
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otherEncodingCombo.setLayoutData(data);
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otherEncodingCombo.addSelectionListener(new SelectionAdapter(){
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public void widgetSelected(SelectionEvent e) {
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updateValidState();
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}
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});
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otherEncodingCombo.addKeyListener(new KeyAdapter(){
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public void keyReleased(KeyEvent e) {
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updateValidState();
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}
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});
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Label emptyLabel = new Label(composite_prompts, SWT.NONE);
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emptyLabel.setText("");
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data = new GridData();
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data.horizontalAlignment = SWT.BEGINNING;
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data.grabExcessHorizontalSpace = false;
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data.verticalAlignment = SWT.BEGINNING;
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data.grabExcessVerticalSpace = true;
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emptyLabel.setLayoutData(data);
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encodingFieldAdded = true;
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}
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else {
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encodingFieldAdded = false;
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}
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if (!initDone)
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doInitializeFields();
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@ -167,6 +251,84 @@ public class SystemFilePropertyPage extends SystemBasePropertyPage
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return composite_prompts;
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}
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/**
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* Update the encoding group state.
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* @param useDefault whether to update the state with default option on. <code>true</code> if the default option
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* should be on, <code>false</code> if it should be off.
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*/
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private void updateEncodingGroupState(boolean useDefault) {
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defaultEncodingButton.setSelection(useDefault);
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otherEncodingButton.setSelection(!useDefault);
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if (useDefault) {
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otherEncodingCombo.setText(getDefaultEncoding());
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}
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otherEncodingCombo.setEnabled(!useDefault);
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updateValidState();
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}
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/**
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* Updates the valid state of the encoding group.
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*/
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private void updateValidState() {
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boolean isValid = isEncodingValid();
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if (isValid != isValidBefore) {
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isValidBefore = isValid;
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if (isValidBefore) {
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clearErrorMessage();
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}
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else {
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setErrorMessage("The selected encoding is not supported.");
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}
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}
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}
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/**
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* Returns the default encoding.
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* @return the default encoding
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*/
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protected String getDefaultEncoding() {
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return defaultEncoding;
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}
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/**
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* Returns the currently selected encoding.
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* @return the currently selected encoding.
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*/
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protected String getSelectedEncoding() {
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if (defaultEncodingButton.getSelection()) {
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return defaultEncoding;
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}
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return otherEncodingCombo.getText();
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}
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/**
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* Returns whether the encoding is valid.
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* @return <code>true</code> if the encoding is valid, <code>false</code> otherwise.
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*/
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private boolean isEncodingValid() {
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return defaultEncodingButton.getSelection() || isEncodingValid(otherEncodingCombo.getText());
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}
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/**
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* Returns whether or not the given encoding is valid.
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* @param encoding the encoding.
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* @return <code>true</code> if the encoding is valid, <code>false</code> otherwise.
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*/
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private boolean isEncodingValid(String encoding) {
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try {
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return Charset.isSupported(encoding);
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}
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catch (IllegalCharsetNameException e) {
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return false;
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}
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}
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/**
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* Get the input remote file object
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*/
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@ -252,6 +414,26 @@ public class SystemFilePropertyPage extends SystemBasePropertyPage
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cbHiddenPrompt.setSelection(file.isHidden());
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cbHiddenPrompt.setEnabled(false);
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}
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// the file encoding group
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if (encodingFieldAdded) {
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List encodings = IDEEncoding.getIDEEncodings();
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String[] encodingStrings = new String[encodings.size()];
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encodings.toArray(encodingStrings);
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otherEncodingCombo.setItems(encodingStrings);
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String encoding = file.getEncoding();
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// if the encoding is the same as the default encoding, then we want to choose the default encoding option
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if (encoding.equalsIgnoreCase(defaultEncoding)) {
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updateEncodingGroupState(true);
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}
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// otherwise choose the other encoding option
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else {
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otherEncodingCombo.setText(encoding);
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updateEncodingGroupState(false);
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}
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}
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}
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/**
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@ -272,19 +454,23 @@ public class SystemFilePropertyPage extends SystemBasePropertyPage
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new org.eclipse.rse.model.SystemResourceChangeEvent(
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getRemoteFile(),ISystemResourceChangeEvents.EVENT_PROPERTY_CHANGE,null));
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} catch (RemoteFileIOException exc)
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{
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}
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catch (RemoteFileIOException exc) {
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setMessage(RSEUIPlugin.getPluginMessage(ISystemMessages.FILEMSG_IO_ERROR));
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} catch (RemoteFileSecurityException exc)
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{
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}
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catch (RemoteFileSecurityException exc) {
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setMessage(RSEUIPlugin.getPluginMessage(ISystemMessages.FILEMSG_SECURITY_ERROR));
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}
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//catch (RemoteFileException e)
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//{
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//}
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}
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}
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// set the encoding
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if (encodingFieldAdded) {
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RemoteFileEncodingManager.getInstance().setEncoding(getRemoteFile().getParentRemoteFileSubSystem().getHost().getHostName(), getRemoteFile().getAbsolutePath(), getSelectedEncoding());
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}
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return ok;
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}
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/**
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* Validate all the widgets on the page
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* <p>
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