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moveObjects.js
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moveObjects.js
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var activeObject = canvas.getActiveObject();
const STEP = 2;
const cb = document.querySelector('#accept');
var Direction = {
LEFT: 0,
UP: 1,
RIGHT: 2,
DOWN: 3
};
fabric.util.addListener(document.body, 'keydown', function (options) {
// if (options.repeat) {
// return;
// }
var key = options.which || options.keyCode; // key detection
if (key === 37) { // handle Left key
moveSelected(Direction.LEFT);
} else if (key === 38) { // handle Up key
moveSelected(Direction.UP);
} else if (key === 39) { // handle Right key
moveSelected(Direction.RIGHT);
} else if (key === 40) { // handle Down key
moveSelected(Direction.DOWN);
} else if (key === 46) { // Delete key
// deleteObjects();
var activeObjects = canvas.getActiveObjects();
canvas.discardActiveObject()
if (activeObjects.length) {
canvas.remove.apply(canvas, activeObjects);
}
canvas.selection = false;
canvas.requestRenderAll();
} else if (key === 27) { // Esc key
canvas.discardActiveObject();
canvas.requestRenderAll();
}
});
function moveSelected(direction) {
var activeObjects = canvas.getActiveObjects();
if (activeObjects.length) {
switch (direction) {
case Direction.LEFT:
if (canvas.getActiveObject()) {
canvas.getActiveObject().left -= STEP;
canvas.requestRenderAll();
};
break;
case Direction.UP:
if (canvas.getActiveObject()) {
canvas.getActiveObject().top -= STEP;
canvas.requestRenderAll();
};
break;
case Direction.RIGHT:
if (canvas.getActiveObject()) {
canvas.getActiveObject().left += STEP;
canvas.requestRenderAll();
};
break;
case Direction.DOWN:
if (canvas.getActiveObject()) {
canvas.getActiveObject().top += STEP;
canvas.requestRenderAll();
};
break;
}
canvas.requestRenderAll();
}
}