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109 lines
No EOL
3.8 KiB
TypeScript
109 lines
No EOL
3.8 KiB
TypeScript
// Establishes key-code definitions.
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/// <reference path="codes.ts" />
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// Defines our generalized "KeyEvent" class.
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/// <reference path="keyEvent.ts" />
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namespace com.keyman.text {
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/**
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* Defines a collection of static library functions that define KeymanWeb's default (implied) keyboard rule behaviors.
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*/
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export class DefaultOutput {
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private constructor() {
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}
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/**
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* This function is designed for future migration into a separate, explicitly-DOM-aware module.
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* It would then be assigned to this class via classic JS method extension practices as an 'override'
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* of `commandEmulation`, reusing the base version of that name seen in this class, which is
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* designed for web-core.
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*/
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public static domCommandEmulation(outputTarget: OutputTarget, code: number, keyShiftState: number) {
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let quiet = outputTarget instanceof Mock;
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let domManager = com.keyman.singleton.domManager;
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switch(code) {
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case Codes.keyCodes['K_TAB']:
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if(!quiet) {
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domManager.moveToNext(keyShiftState);
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}
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break;
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case Codes.keyCodes['K_TABBACK']:
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if(!quiet) {
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domManager.moveToNext(true);
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}
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break;
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case Codes.keyCodes['K_TABFWD']:
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if(!quiet) {
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domManager.moveToNext(false);
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}
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break;
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}
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}
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public static commandEmulation(Lkc: KeyEvent, keyShiftState: number) {
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let keyName = Lkc.kName;
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let n = Lkc.Lcode;
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let outputTarget = Lkc.Ltarg;
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let keyman = com.keyman.singleton;
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let quiet = outputTarget instanceof Mock;
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var code = Codes.keyCodes[keyName];
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if(!code) {
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code = n;
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}
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DefaultOutput.domCommandEmulation(outputTarget, code, keyShiftState);
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switch(code) {
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case Codes.keyCodes['K_BKSP']: //Only desktop UI, not touch devices. TODO: add repeat while mouse down for desktop UI
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if(quiet) {
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// TODO: Remove need for this clause via refactoring. It's currently needed for predictive text Mocks.
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return '\b'; // the escape sequence for backspace.
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} else {
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keyman.interface.defaultBackspace(outputTarget);
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}
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return '';
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case Codes.keyCodes['K_ENTER']:
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outputTarget.handleNewlineAtCaret();
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return '\n'; // We still return this, as it ensures we generate a rule-match.
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case Codes.keyCodes['K_SPACE']:
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return ' ';
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//
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// // Problem: clusters, and doing them right.
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// // The commented-out code below should be a decent starting point, but clusters make it complex.
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// // Mostly based on pre-12.0 code, but the general idea should be relatively clear.
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//
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// case Codes.keyCodes['K_LEFT']:
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// if(touchAlias) {
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// var caretPos = keymanweb.getTextCaret(Lelem);
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// keymanweb.setTextCaret(Lelem, caretPos - 1 >= 0 ? caretPos - 1 : 0);
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// }
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// break;
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// case Codes.keyCodes['K_RIGHT']:
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// if(touchAlias) {
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// var caretPos = keymanweb.getTextCaret(Lelem);
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// keymanweb.setTextCaret(Lelem, caretPos + 1);
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// }
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// if(code == VisualKeyboard.keyCodes['K_RIGHT']) {
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// break;
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// }
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// // Should we include this? It could be tricky to do correctly...
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// case Codes.keyCodes['K_DEL']:
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// // Move caret right one unit, then backspace.
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// if(touchAlias) {
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// var caretPos = keymanweb.getTextCaret(Lelem);
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// keymanweb.setTextCaret(Lelem, caretPos + 1);
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// if(caretPos == keymanweb.getTextCaret(Lelem)) {
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// // Failed to move right - there's nothing to delete.
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// break;
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// }
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// kbdInterface.defaultBackspace();
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// }
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}
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}
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}
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} |