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153 行
7.1 KiB
153 行
7.1 KiB
using System.Collections.Generic;
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using UnityEngine;
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namespace Unity.UIWidgets.service {
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public class TextInputUtils {
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static Dictionary<Event, TextInputAction> _keyToOperations;
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public static TextInputAction? getInputAction(Event evt) {
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if (_keyToOperations == null) {
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initKeyToOperations();
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}
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EventModifiers m = evt.modifiers;
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evt.modifiers &= ~EventModifiers.CapsLock;
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TextInputAction result;
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var exists = _keyToOperations.TryGetValue(evt, out result);
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evt.modifiers = m;
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if (exists) {
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return result;
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}
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return null;
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}
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public static void initKeyToOperations() {
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if (_keyToOperations != null) {
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return;
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}
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_keyToOperations = new Dictionary<Event, TextInputAction>();
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// key mappings shared by the platforms
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mapKey("return", TextInputAction.newline);
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mapKey("left", TextInputAction.moveLeft);
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mapKey("right", TextInputAction.moveRight);
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mapKey("up", TextInputAction.moveUp);
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mapKey("down", TextInputAction.moveDown);
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mapKey("#left", TextInputAction.selectLeft);
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mapKey("#right", TextInputAction.selectRight);
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mapKey("#up", TextInputAction.selectUp);
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mapKey("#down", TextInputAction.selectDown);
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mapKey("delete", TextInputAction.delete);
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mapKey("backspace", TextInputAction.backspace);
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mapKey("#backspace", TextInputAction.backspace);
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// OSX is the special case for input shortcuts
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if (SystemInfo.operatingSystemFamily == OperatingSystemFamily.MacOSX) {
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// Keyboard mappings for mac
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// TODO mapKey ("home", TextInputAction.scrollStart);
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// TODO mapKey ("end", TextInputAction.scrollEnd);
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// TODO mapKey ("page up", TextInputAction.scrollPageUp);
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// TODO mapKey ("page down", TextInputAction.scrollPageDown);
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mapKey("^left", TextInputAction.moveGraphicalLineStart);
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mapKey("^right", TextInputAction.moveGraphicalLineEnd);
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// TODO mapKey ("^up", TextInputAction.scrollPageUp);
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// TODO mapKey ("^down", TextInputAction.scrollPageDown);
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mapKey("&left", TextInputAction.moveWordLeft);
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mapKey("&right", TextInputAction.moveWordRight);
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mapKey("&up", TextInputAction.moveParagraphBackward);
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mapKey("&down", TextInputAction.moveParagraphForward);
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mapKey("%left", TextInputAction.moveGraphicalLineStart);
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mapKey("%right", TextInputAction.moveGraphicalLineEnd);
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mapKey("%up", TextInputAction.moveTextStart);
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mapKey("%down", TextInputAction.moveTextEnd);
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mapKey("#home", TextInputAction.selectTextStart);
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mapKey("#end", TextInputAction.selectTextEnd);
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// TODO mapKey ("#page up", TextInputAction.selectPageUp);
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// TODO mapKey ("#page down", TextInputAction.selectPageDown);
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mapKey("#^left", TextInputAction.expandSelectGraphicalLineStart);
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mapKey("#^right", TextInputAction.expandSelectGraphicalLineEnd);
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mapKey("#^up", TextInputAction.selectParagraphBackward);
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mapKey("#^down", TextInputAction.selectParagraphForward);
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mapKey("#&left", TextInputAction.selectWordLeft);
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mapKey("#&right", TextInputAction.selectWordRight);
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mapKey("#&up", TextInputAction.selectParagraphBackward);
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mapKey("#&down", TextInputAction.selectParagraphForward);
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mapKey("#%left", TextInputAction.expandSelectGraphicalLineStart);
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mapKey("#%right", TextInputAction.expandSelectGraphicalLineEnd);
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mapKey("#%up", TextInputAction.selectTextStart);
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mapKey("#%down", TextInputAction.selectTextEnd);
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mapKey("%a", TextInputAction.selectAll);
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mapKey("%x", TextInputAction.cut);
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mapKey("%c", TextInputAction.copy);
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mapKey("%v", TextInputAction.paste);
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// emacs-like keybindings
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mapKey("^d", TextInputAction.delete);
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mapKey("^h", TextInputAction.backspace);
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mapKey("^b", TextInputAction.moveLeft);
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mapKey("^f", TextInputAction.moveRight);
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mapKey("^a", TextInputAction.moveLineStart);
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mapKey("^e", TextInputAction.moveLineEnd);
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mapKey("&delete", TextInputAction.deleteWordForward);
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mapKey("&backspace", TextInputAction.deleteWordBack);
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mapKey("%backspace", TextInputAction.deleteLineBack);
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}
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else {
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// Windows/Linux keymappings
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mapKey("home", TextInputAction.moveGraphicalLineStart);
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mapKey("end", TextInputAction.moveGraphicalLineEnd);
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// TODO mapKey ("page up", TextInputAction.movePageUp);
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// TODO mapKey ("page down", TextInputAction.movePageDown);
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mapKey("%left", TextInputAction.moveWordLeft);
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mapKey("%right", TextInputAction.moveWordRight);
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mapKey("%up", TextInputAction.moveParagraphBackward);
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mapKey("%down", TextInputAction.moveParagraphForward);
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mapKey("^left", TextInputAction.moveToEndOfPreviousWord);
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mapKey("^right", TextInputAction.moveToStartOfNextWord);
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mapKey("^up", TextInputAction.moveParagraphBackward);
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mapKey("^down", TextInputAction.moveParagraphForward);
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mapKey("#^left", TextInputAction.selectToEndOfPreviousWord);
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mapKey("#^right", TextInputAction.selectToStartOfNextWord);
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mapKey("#^up", TextInputAction.selectParagraphBackward);
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mapKey("#^down", TextInputAction.selectParagraphForward);
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mapKey("#home", TextInputAction.selectGraphicalLineStart);
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mapKey("#end", TextInputAction.selectGraphicalLineEnd);
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// TODO mapKey ("#page up", TextInputAction.selectPageUp);
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// TODO mapKey ("#page down", TextInputAction.selectPageDown);
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mapKey("^delete", TextInputAction.deleteWordForward);
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mapKey("^backspace", TextInputAction.deleteWordBack);
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mapKey("%backspace", TextInputAction.deleteLineBack);
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mapKey("^a", TextInputAction.selectAll);
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mapKey("^x", TextInputAction.cut);
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mapKey("^c", TextInputAction.copy);
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mapKey("^v", TextInputAction.paste);
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mapKey("#delete", TextInputAction.cut);
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mapKey("^insert", TextInputAction.copy);
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mapKey("#insert", TextInputAction.paste);
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}
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}
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static void mapKey(string key, TextInputAction action) {
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_keyToOperations[Event.KeyboardEvent(key)] = action;
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}
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}
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}
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