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keyInputHandler.js
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Tue, Sep 17, 09:31

keyInputHandler.js
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class KeyInputHandler {
constructor(inputLogger){
this.inputLogger = inputLogger;
this.modifierKeyCode = -1;
}
keyUp(e) {
if (e.keyCode == this.modifierKeyCode) {
this.inputLogger.addEvent(e);
modifierPressed = false;
if (e.key == 'Shift'){
shiftPressed = false;
}
}
}
checkKey(e) {
if (!runsOnBakFile){
e = e || window.event;
if (redoStack.length > 0){
e.preventDefault();
}
if(e.getModifierState(e.key)){
this.modifierKeyCode = e.keyCode;
modifierPressed = true;
shiftPressed = (e.key == 'Shift');
}
if (modifierPressed && (e.key == 'z' || e.key == 'r')){
let execFunction = (e.key == 'z') ? undo : redo;
execFunction();
} else {
this.inputLogger.addEvent(e);
let selectedElements = Array.from(document.getElementsByClassName('selected'));
if (selectedElements.length > 0){
e.preventDefault();
if (document.getElementById('offset') && Number(document.getElementById('offset').value)) {
offset = Number(document.getElementById('offset').value);
}
if (document.getElementById('modOffset') && Number(document.getElementById('modOffset').value)) {
modOffset = Number(document.getElementById('modOffset').value);
}
selectedElements.forEach(item =>{
let currentOffset = (modifierPressed) ? modOffset : offset;
if (e.keyCode == '38') {
repositionElement(item, 0, currentOffset*-1, false)
// up arrow
}
else if (e.keyCode == '40') {
repositionElement(item, 0, currentOffset, false)
// down arrow
}
else if (e.keyCode == '37') {
// left arrow
repositionElement(item, currentOffset*-1, 0, false);
}
else if (e.keyCode == '39') {
// right arrow
repositionElement(item, currentOffset, 0, false);
}
else if (e.key == 'Enter'){
item.classList.remove("selected");
currentItem = null;
positionInfo();
}
});
}
}
}
}
}

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