Java tutorial
// Copyright (C) 2014 The Android Open Source 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 com.google.gerrit.client.editor; import com.google.gerrit.client.Gerrit; import com.google.gerrit.client.account.AccountApi; import com.google.gerrit.client.account.EditPreferences; import com.google.gerrit.client.rpc.GerritCallback; import com.google.gerrit.client.ui.NpIntTextBox; import com.google.gerrit.extensions.client.EditPreferencesInfo; import com.google.gerrit.extensions.client.KeyMapType; import com.google.gerrit.extensions.client.Theme; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.Element; import com.google.gwt.dom.client.Style.Visibility; import com.google.gwt.event.dom.client.ChangeEvent; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.logical.shared.ValueChangeEvent; import com.google.gwt.resources.client.CssResource; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.uibinder.client.UiHandler; import com.google.gwt.user.client.ui.Anchor; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.PopupPanel; import com.google.gwt.user.client.ui.ToggleButton; import com.google.gwt.user.client.ui.UIObject; import net.codemirror.theme.ThemeLoader; /** Displays current edit preferences. */ public class EditPreferencesBox extends Composite { interface Binder extends UiBinder<HTMLPanel, EditPreferencesBox> { } private static final Binder uiBinder = GWT.create(Binder.class); public interface Style extends CssResource { String dialog(); } private final EditScreen view; private EditPreferences prefs; @UiField Style style; @UiField Element header; @UiField Anchor close; @UiField NpIntTextBox tabWidth; @UiField NpIntTextBox lineLength; @UiField NpIntTextBox indentUnit; @UiField NpIntTextBox cursorBlinkRate; @UiField ToggleButton topMenu; @UiField ToggleButton syntaxHighlighting; @UiField ToggleButton showTabs; @UiField ToggleButton whitespaceErrors; @UiField ToggleButton lineNumbers; @UiField ToggleButton matchBrackets; @UiField ToggleButton lineWrapping; @UiField ToggleButton autoCloseBrackets; @UiField ToggleButton showBase; @UiField ListBox theme; @UiField ListBox keyMap; @UiField Button apply; @UiField Button save; public EditPreferencesBox(EditScreen view) { this.view = view; initWidget(uiBinder.createAndBindUi(this)); initTheme(); initKeyMapType(); if (view == null) { UIObject.setVisible(header, false); apply.getElement().getStyle().setVisibility(Visibility.HIDDEN); } } public Style getStyle() { return style; } public void set(EditPreferences prefs) { this.prefs = prefs; tabWidth.setIntValue(prefs.tabSize()); lineLength.setIntValue(prefs.lineLength()); indentUnit.setIntValue(prefs.indentUnit()); cursorBlinkRate.setIntValue(prefs.cursorBlinkRate()); topMenu.setValue(!prefs.hideTopMenu()); syntaxHighlighting.setValue(prefs.syntaxHighlighting()); showTabs.setValue(prefs.showTabs()); whitespaceErrors.setValue(prefs.showWhitespaceErrors()); lineNumbers.setValue(prefs.hideLineNumbers()); matchBrackets.setValue(prefs.matchBrackets()); lineWrapping.setValue(prefs.lineWrapping()); autoCloseBrackets.setValue(prefs.autoCloseBrackets()); showBase.setValue(prefs.showBase()); setTheme(prefs.theme()); setKeyMapType(prefs.keyMapType()); } @UiHandler("tabWidth") void onTabWidth(ValueChangeEvent<String> e) { String v = e.getValue(); if (v != null && v.length() > 0) { prefs.tabSize(Math.max(1, Integer.parseInt(v))); if (view != null) { view.setOption("tabSize", v); } } } @UiHandler("lineLength") void onLineLength(ValueChangeEvent<String> e) { String v = e.getValue(); if (v != null && v.length() > 0) { prefs.lineLength(Math.max(1, Integer.parseInt(v))); if (view != null) { view.setLineLength(prefs.lineLength()); } } } @UiHandler("indentUnit") void onIndentUnit(ValueChangeEvent<String> e) { String v = e.getValue(); if (v != null && v.length() > 0) { prefs.indentUnit(Math.max(0, Integer.parseInt(v))); if (view != null) { view.setIndentUnit(prefs.indentUnit()); } } } @UiHandler("cursorBlinkRate") void onCursoBlinkRate(ValueChangeEvent<String> e) { String v = e.getValue(); if (v != null && v.length() > 0) { // A negative value hides the cursor entirely: // don't let user shoot himself in the foot. prefs.cursorBlinkRate(Math.max(0, Integer.parseInt(v))); if (view != null) { view.setOption("cursorBlinkRate", prefs.cursorBlinkRate()); } } } @UiHandler("topMenu") void onTopMenu(ValueChangeEvent<Boolean> e) { prefs.hideTopMenu(!e.getValue()); if (view != null) { Gerrit.setHeaderVisible(!prefs.hideTopMenu()); view.adjustHeight(); } } @UiHandler("showTabs") void onShowTabs(ValueChangeEvent<Boolean> e) { prefs.showTabs(e.getValue()); if (view != null) { view.setShowTabs(prefs.showTabs()); } } @UiHandler("whitespaceErrors") void onshowTrailingSpace(ValueChangeEvent<Boolean> e) { prefs.showWhitespaceErrors(e.getValue()); if (view != null) { view.setShowWhitespaceErrors(prefs.showWhitespaceErrors()); } } @UiHandler("lineNumbers") void onLineNumbers(ValueChangeEvent<Boolean> e) { prefs.hideLineNumbers(e.getValue()); if (view != null) { view.setShowLineNumbers(prefs.hideLineNumbers()); } } @UiHandler("syntaxHighlighting") void onSyntaxHighlighting(ValueChangeEvent<Boolean> e) { prefs.syntaxHighlighting(e.getValue()); if (view != null) { view.setSyntaxHighlighting(prefs.syntaxHighlighting()); } } @UiHandler("matchBrackets") void onMatchBrackets(ValueChangeEvent<Boolean> e) { prefs.matchBrackets(e.getValue()); if (view != null) { view.setOption("matchBrackets", prefs.matchBrackets()); } } @UiHandler("lineWrapping") void onLineWrapping(ValueChangeEvent<Boolean> e) { prefs.lineWrapping(e.getValue()); if (view != null) { view.getEditor().setOption("lineWrapping", prefs.lineWrapping()); } } @UiHandler("autoCloseBrackets") void onCloseBrackets(ValueChangeEvent<Boolean> e) { prefs.autoCloseBrackets(e.getValue()); if (view != null) { view.getEditor().setOption("autoCloseBrackets", prefs.autoCloseBrackets()); } } @UiHandler("showBase") void onShowBase(ValueChangeEvent<Boolean> e) { Boolean value = e.getValue(); prefs.showBase(value); if (view != null) { view.showBase.setValue(value, true); } } @UiHandler("theme") void onTheme(@SuppressWarnings("unused") ChangeEvent e) { final Theme newTheme = Theme.valueOf(theme.getValue(theme.getSelectedIndex())); prefs.theme(newTheme); if (view != null) { ThemeLoader.loadTheme(newTheme, new GerritCallback<Void>() { @Override public void onSuccess(Void result) { view.setTheme(newTheme); } }); } } @UiHandler("keyMap") void onKeyMap(@SuppressWarnings("unused") ChangeEvent e) { KeyMapType keyMapType = KeyMapType.valueOf(keyMap.getValue(keyMap.getSelectedIndex())); prefs.keyMapType(keyMapType); if (view != null) { view.setOption("keyMap", keyMapType.name().toLowerCase()); } } @UiHandler("apply") void onApply(@SuppressWarnings("unused") ClickEvent e) { close(); } @UiHandler("save") void onSave(@SuppressWarnings("unused") ClickEvent e) { AccountApi.putEditPreferences(prefs, new GerritCallback<EditPreferences>() { @Override public void onSuccess(EditPreferences p) { Gerrit.setEditPreferences(p.copyTo(new EditPreferencesInfo())); } }); close(); } @UiHandler("close") void onClose(ClickEvent e) { e.preventDefault(); close(); } private void close() { ((PopupPanel) getParent()).hide(); } private void setTheme(Theme v) { String name = v != null ? v.name() : Theme.DEFAULT.name(); for (int i = 0; i < theme.getItemCount(); i++) { if (theme.getValue(i).equals(name)) { theme.setSelectedIndex(i); return; } } theme.setSelectedIndex(0); } private void initTheme() { for (Theme t : Theme.values()) { theme.addItem(t.name().toLowerCase(), t.name()); } } private void setKeyMapType(KeyMapType v) { String name = v != null ? v.name() : KeyMapType.DEFAULT.name(); for (int i = 0; i < keyMap.getItemCount(); i++) { if (keyMap.getValue(i).equals(name)) { keyMap.setSelectedIndex(i); return; } } keyMap.setSelectedIndex(0); } private void initKeyMapType() { for (KeyMapType t : KeyMapType.values()) { keyMap.addItem(t.name().toLowerCase(), t.name()); } } }