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How to limit the direction of resize of a container with mouse

I have a container which can resize from right-side and bottom .

It is resizing correctly but in both sides that is in height and width at the same time in unlimited length .

Can there be a way to limit direction of resize either bottom side or right side increase or decrease in size .

Single side increase is only possible when using 1 condition in if

Here is the code :

const panel = document.getElementById("styleChangeOuterTag");
let m_pos;
let m_pos1;

function resize(e) {
  const dx = m_pos - e.x;
  const dy = m_pos1 - e.y;
  m_pos = e.x;
  m_pos1 = e.y;
  panel.style.width = (parseInt(getComputedStyle(panel).width) - dx) + "px";
  panel.style.height = (parseInt(getComputedStyle(panel).height) - dy) + "px";
}

panel.addEventListener("mousedown", function(e) {
  if (e.offsetX > panel.clientWidth - 10) {
    m_pos = e.x;
    document.addEventListener("mousemove", resize);
  } else if (e.offsetY > panel.clientHeight - 10) {
    m_pos1 = e.y;
    document.addEventListener("mousemove", resize);
  }
});

document.addEventListener("mouseup", function() {
  document.removeEventListener("mousemove", resize);
});
#styleChangeOuterTag {
  /* display: none; */
  /* position: fixed; */
  position: relative;
  top: 0;
  left: 0;
  width: 300px;
  height: 300px;
  padding: 2vw 1.5vw;
  background-color: rgb(255, 245, 245);
  border: 2px solid rgb(255, 60, 255);
  border-radius: 3px;
  z-index: 5;
  user-select: none;
}

#styleChangeOuterTag::after {
  content: '';
  background-color: #ccc;
  position: absolute;
  top: 0;
  right: 0;
  width: 10px;
  height: 100%;
  cursor: ew-resize;
}

#styleChangeOuterTag::before {
  content: '';
  background-color: #ccc;
  position: absolute;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 10px;
  cursor: ns-resize;
}

#styleOptionDetails {
  border: 2px solid purple;
  border-radius: 3px;
  padding: 1vw;
  overflow: auto;
}
<div id="styleChangeOuterTag">
  <hr>
  <div id="styleOptionDetails">
  </div>
</div>

Can you tell about how to size the clickable width(grey part in Container-which trigger resize) as now it not right in size and don't work in whole width

created with e.offsetX > panel.clientWidth - 10

Thanks for help in advance

about 4 years ago · Juan Pablo Isaza
1 answers
Answer question

0

You may add additional condition in to your resize function, something like this:

const minWidth = 150
const maxWidth = 500
const minHeight = 150
const maxHeight = 500

function resize(e) {
  const dx = m_pos - e.x;
  const dy = m_pos1 - e.y;
  m_pos = e.x;
  m_pos1 = e.y;

  const newWidth = parseInt(getComputedStyle(panel).width) - dx
  const newHeight = parseInt(getComputedStyle(panel).height - dy

  if (newWidth > minWidth && newWidth < maxWidth) {
    panel.style.width = newWidth + "px";
  }
  if (newHeight > minHeight && newHeight < maxHeight) {
    panel.style.height = newHeight + "px";
  }
}

about 4 years ago · Juan Pablo Isaza Report
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