initial commit

js/flag.js

@@ -0,0 +1,85 @@
+var dragables = document.getElementsByClassName("mydragable")
+
+for (var i = 0, ele; ele = dragables[i++]; ) {
+  dragElement(ele);
+}
+
+for (var i = 0, ele; ele = dragables[i++]; ) {
+  LoadElementPos(ele);
+}
+
+
+function dragElement(elmnt) {
+  var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
+
+  elmnt.onmousedown = dragMouseDown;
+
+  function dragMouseDown(e) {
+    e = e || window.event;
+    e.preventDefault();
+    // get the mouse cursor position at startup:
+    pos3 = e.clientX;
+    pos4 = e.clientY;
+    document.onmouseup = closeDragElement;
+    // call a function whenever the cursor moves:
+    document.onmousemove = elementDrag;
+  }
+
+  function elementDrag(e) {
+    e = e || window.event;
+    e.preventDefault();
+    // calculate the new cursor position:
+    pos1 = pos3 - e.clientX;
+    pos2 = pos4 - e.clientY;
+    pos3 = e.clientX;
+    pos4 = e.clientY;
+    // set the element's new position:
+
+    var nx = elmnt.offsetLeft - pos1;
+    if (nx > 1000) { nx = 1000;	}
+    if (nx < 0) {  nx = 0; }
+
+    var ny = elmnt.offsetTop - pos2;
+    if (ny < 0)	{
+    ny = 0;
+  }
+
+  elmnt.style.left = nx + "px";
+  elmnt.style.top = ny + "px";
+
+}
+
+function closeDragElement() {
+  /* stop moving when mouse button is released:*/
+  document.onmouseup = null;
+  document.onmousemove = null;
+  SaveElementPos(elmnt);
+  }
+}
+
+function LoadElementPos(elment) {
+  var cords = window.localStorage.getItem(elment.id);
+
+  if (cords != null) {
+    var cc = JSON.parse(cords);
+
+    elment.style.left = cc.x;
+    elment.style.top = cc.y;
+  }
+}
+
+function SaveElementPos(elment) {
+  var cc = { x: elment.style.left, y: elment.style.top }
+  window.localStorage.setItem(elment.id,JSON.stringify(cc));
+}
+
+function clearMarkers() {
+  var r = confirm("Clear all markers? (Warning, this cannot be undone.)");
+  if (r == true) {
+    var r2 = confirm("You sure? (Warning, this cannot be undone.)");
+    if (r2 == true) {
+      localStorage.clear();
+      location.reload();
+    }
+  }
+}