Cleaned up via JSLint
This commit is contained in:
parent
296c6e605f
commit
c46b5cc7cc
|
@ -1,5 +1,4 @@
|
|||
/*
|
||||
|
||||
DragResize v1.0
|
||||
(c) 2005-2006 Angus Turnbull, TwinHelix Designs http://www.twinhelix.com
|
||||
|
||||
|
@ -7,346 +6,315 @@ Licensed under the CC-GNU LGPL, version 2.1 or later:
|
|||
http://creativecommons.org/licenses/LGPL/2.1/
|
||||
This is distributed WITHOUT ANY WARRANTY; without even the implied
|
||||
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
|
||||
*/
|
||||
|
||||
|
||||
// Common API code.
|
||||
if (typeof addEvent != 'function') {
|
||||
var removeEvent = function(o, t, f, l) {
|
||||
var d = 'removeEventListener';
|
||||
if (o[d] && !l) {
|
||||
return o[d](t, f, false);
|
||||
}
|
||||
if (o._evts && o._evts[t] && f._i) {
|
||||
delete o._evts[t][f._i];
|
||||
}
|
||||
};
|
||||
|
||||
if (typeof addEvent != 'function')
|
||||
{
|
||||
var addEvent = function(o, t, f, l)
|
||||
{
|
||||
var d = 'addEventListener', n = 'on' + t, rO = o, rT = t, rF = f, rL = l;
|
||||
if (o[d] && !l) return o[d](t, f, false);
|
||||
if (!o._evts) o._evts = {};
|
||||
if (!o._evts[t])
|
||||
{
|
||||
o._evts[t] = o[n] ? { b: o[n] } : {};
|
||||
o[n] = new Function('e',
|
||||
'var r = true, o = this, a = o._evts["' + t + '"], i; for (i in a) {' +
|
||||
'o._f = a[i]; r = o._f(e||window.event) != false && r; o._f = null;' +
|
||||
'} return r');
|
||||
if (t != 'unload') addEvent(window, 'unload', function() {
|
||||
removeEvent(rO, rT, rF, rL);
|
||||
});
|
||||
}
|
||||
if (!f._i) f._i = addEvent._i++;
|
||||
o._evts[t][f._i] = f;
|
||||
};
|
||||
addEvent._i = 1;
|
||||
var removeEvent = function(o, t, f, l)
|
||||
{
|
||||
var d = 'removeEventListener';
|
||||
if (o[d] && !l) return o[d](t, f, false);
|
||||
if (o._evts && o._evts[t] && f._i) delete o._evts[t][f._i];
|
||||
};
|
||||
var addEvent = function(o, t, f, l) {
|
||||
var d = 'addEventListener', n = 'on' + t, rO = o, rT = t, rF = f, rL = l;
|
||||
if (o[d] && !l) {
|
||||
return o[d](t, f, false);
|
||||
}
|
||||
if (!o._evts) {
|
||||
o._evts = {};
|
||||
}
|
||||
if (!o._evts[t]) {
|
||||
o._evts[t] = o[n] ? { b: o[n] } : {};
|
||||
o[n] = new Function('e',
|
||||
'var r = true, o = this, a = o._evts["' + t + '"], i; for (i in a) {' +
|
||||
'o._f = a[i]; r = o._f(e||window.event) != false && r; o._f = null;' +
|
||||
'} return r'
|
||||
);
|
||||
if (t != 'unload') {
|
||||
addEvent(window, 'unload', function() {
|
||||
removeEvent(rO, rT, rF, rL);
|
||||
});
|
||||
}
|
||||
}
|
||||
if (!f._i) {
|
||||
f._i = addEvent._i++;
|
||||
}
|
||||
o._evts[t][f._i] = f;
|
||||
};
|
||||
addEvent._i = 1;
|
||||
}
|
||||
|
||||
|
||||
function cancelEvent(e, c)
|
||||
{
|
||||
e.returnValue = false;
|
||||
if (e.preventDefault) e.preventDefault();
|
||||
if (c)
|
||||
{
|
||||
e.cancelBubble = true;
|
||||
if (e.stopPropagation) e.stopPropagation();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
function cancelEvent(e, c) {
|
||||
e.returnValue = false;
|
||||
if (e.preventDefault) {
|
||||
e.preventDefault();
|
||||
}
|
||||
if (c) {
|
||||
e.cancelBubble = true;
|
||||
if (e.stopPropagation) {
|
||||
e.stopPropagation();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// *** DRAG/RESIZE CODE ***
|
||||
function DragResize(myName, config) {
|
||||
var props = {
|
||||
myName: myName, // Name of the object.
|
||||
enabled: true, // Global toggle of drag/resize.
|
||||
handles: ['tl', 'tm', 'tr',
|
||||
'ml', 'mr', 'bl', 'bm', 'br'], // Array of drag handles: top/mid/bot/right.
|
||||
isElement: null, // Function ref to test for an element.
|
||||
isHandle: null, // Function ref to test for move handle.
|
||||
element: null, // The currently selected element.
|
||||
handle: null, // Active handle reference of the element.
|
||||
minWidth: 10, minHeight: 10, // Minimum pixel size of elements.
|
||||
minLeft: 0, maxLeft: 9999, // Bounding box area, in pixels.
|
||||
minTop: 0, maxTop: 9999,
|
||||
zIndex: 1, // The highest Z-Index yet allocated.
|
||||
mouseX: 0, mouseY: 0, // Current mouse position, recorded live.
|
||||
lastMouseX: 0, lastMouseY: 0, // Last processed mouse positions.
|
||||
mOffX: 0, mOffY: 0, // A known offset between position & mouse.
|
||||
elmX: 0, elmY: 0, // Element position.
|
||||
elmW: 0, elmH: 0, // Element size.
|
||||
allowBlur: true, // Whether to allow automatic blur onclick.
|
||||
ondragfocus: null, // Event handler functions.
|
||||
ondragstart: null,
|
||||
ondragmove: null,
|
||||
ondragend: null,
|
||||
ondragblur: null
|
||||
};
|
||||
|
||||
function DragResize(myName, config)
|
||||
{
|
||||
var props = {
|
||||
myName: myName, // Name of the object.
|
||||
enabled: true, // Global toggle of drag/resize.
|
||||
handles: ['tl', 'tm', 'tr',
|
||||
'ml', 'mr', 'bl', 'bm', 'br'], // Array of drag handles: top/mid/bot/right.
|
||||
isElement: null, // Function ref to test for an element.
|
||||
isHandle: null, // Function ref to test for move handle.
|
||||
element: null, // The currently selected element.
|
||||
handle: null, // Active handle reference of the element.
|
||||
minWidth: 10, minHeight: 10, // Minimum pixel size of elements.
|
||||
minLeft: 0, maxLeft: 9999, // Bounding box area, in pixels.
|
||||
minTop: 0, maxTop: 9999,
|
||||
zIndex: 1, // The highest Z-Index yet allocated.
|
||||
mouseX: 0, mouseY: 0, // Current mouse position, recorded live.
|
||||
lastMouseX: 0, lastMouseY: 0, // Last processed mouse positions.
|
||||
mOffX: 0, mOffY: 0, // A known offset between position & mouse.
|
||||
elmX: 0, elmY: 0, // Element position.
|
||||
elmW: 0, elmH: 0, // Element size.
|
||||
allowBlur: true, // Whether to allow automatic blur onclick.
|
||||
ondragfocus: null, // Event handler functions.
|
||||
ondragstart: null,
|
||||
ondragmove: null,
|
||||
ondragend: null,
|
||||
ondragblur: null
|
||||
};
|
||||
|
||||
for (var p in props)
|
||||
this[p] = (typeof config[p] == 'undefined') ? props[p] : config[p];
|
||||
for (var p in props) {
|
||||
this[p] = (typeof config[p] == 'undefined') ? props[p] : config[p];
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
DragResize.prototype.apply = function(node)
|
||||
{
|
||||
// Adds object event handlers to the specified DOM node.
|
||||
|
||||
var obj = this;
|
||||
addEvent(node, 'mousedown', function(e) { obj.mouseDown(e) } );
|
||||
addEvent(node, 'mousemove', function(e) { obj.mouseMove(e) } );
|
||||
addEvent(node, 'mouseup', function(e) { obj.mouseUp(e) } );
|
||||
DragResize.prototype.apply = function(node) {
|
||||
// Adds object event handlers to the specified DOM node.
|
||||
var obj = this;
|
||||
addEvent(node, 'mousedown', function(e) { obj.mouseDown(e) } );
|
||||
addEvent(node, 'mousemove', function(e) { obj.mouseMove(e) } );
|
||||
addEvent(node, 'mouseup', function(e) { obj.mouseUp(e) } );
|
||||
};
|
||||
|
||||
DragResize.prototype.select = function(newElement) {
|
||||
with (this) {
|
||||
// Selects an element for dragging.
|
||||
if (!document.getElementById || !enabled) return;
|
||||
|
||||
DragResize.prototype.select = function(newElement) { with (this)
|
||||
{
|
||||
// Selects an element for dragging.
|
||||
// Activate and record our new dragging element.
|
||||
if (newElement && (newElement != element) && enabled) {
|
||||
element = newElement;
|
||||
// Elevate it and give it resize handles.
|
||||
element.style.zIndex = ++zIndex;
|
||||
if (this.resizeHandleSet) this.resizeHandleSet(element, true);
|
||||
// Record element attributes for mouseMove().
|
||||
elmX = parseInt(element.style.left);
|
||||
elmY = parseInt(element.style.top);
|
||||
elmW = element.offsetWidth;
|
||||
elmH = element.offsetHeight;
|
||||
if (ondragfocus) this.ondragfocus();
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
if (!document.getElementById || !enabled) return;
|
||||
DragResize.prototype.deselect = function(delHandles) {
|
||||
with (this) {
|
||||
// Immediately stops dragging an element. If 'delHandles' is true, this
|
||||
// remove the handles from the element and clears the element flag,
|
||||
// completely resetting the .
|
||||
if (!document.getElementById || !enabled) return;
|
||||
|
||||
// Activate and record our new dragging element.
|
||||
if (newElement && (newElement != element) && enabled)
|
||||
{
|
||||
element = newElement;
|
||||
// Elevate it and give it resize handles.
|
||||
element.style.zIndex = ++zIndex;
|
||||
if (this.resizeHandleSet) this.resizeHandleSet(element, true);
|
||||
// Record element attributes for mouseMove().
|
||||
elmX = parseInt(element.style.left);
|
||||
elmY = parseInt(element.style.top);
|
||||
elmW = element.offsetWidth;
|
||||
elmH = element.offsetHeight;
|
||||
if (ondragfocus) this.ondragfocus();
|
||||
}
|
||||
if (delHandles) {
|
||||
if (ondragblur) this.ondragblur();
|
||||
if (this.resizeHandleSet) this.resizeHandleSet(element, false);
|
||||
element = null;
|
||||
}
|
||||
handle = null;
|
||||
mOffX = 0;
|
||||
mOffY = 0;
|
||||
}
|
||||
};
|
||||
|
||||
DragResize.prototype.mouseDown = function(e) {
|
||||
with (this) {
|
||||
// Suitable elements are selected for drag/resize on mousedown.
|
||||
// We also initialise the resize boxes, and drag parameters like mouse position etc.
|
||||
if (!document.getElementById || !enabled) return true;
|
||||
|
||||
var elm = e.target || e.srcElement,
|
||||
newElement = null,
|
||||
newHandle = null,
|
||||
hRE = new RegExp(myName + '-([trmbl]{2})', '');
|
||||
|
||||
while (elm) {
|
||||
// Loop up the DOM looking for matching elements. Remember one if found.
|
||||
if (elm.className) {
|
||||
if (!newHandle && (hRE.test(elm.className) || isHandle(elm))) newHandle = elm;
|
||||
if (isElement(elm)) { newElement = elm; break }
|
||||
}
|
||||
elm = elm.parentNode;
|
||||
}
|
||||
|
||||
// If this isn't on the last dragged element, call deselect(),
|
||||
// which will hide its handles and clear element.
|
||||
if (element && (element != newElement) && allowBlur) deselect(true);
|
||||
|
||||
// If we have a new matching element, call select().
|
||||
if (newElement && (!element || (newElement == element))) {
|
||||
// Stop mouse selections if we're dragging a handle.
|
||||
if (newHandle) cancelEvent(e);
|
||||
select(newElement, newHandle);
|
||||
handle = newHandle;
|
||||
if (handle && ondragstart) this.ondragstart(hRE.test(handle.className));
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
DragResize.prototype.mouseMove = function(e) { with (this) {
|
||||
// This continually offsets the dragged element by the difference between the
|
||||
// last recorded mouse position (mouseX/Y) and the current mouse position.
|
||||
if (!document.getElementById || !enabled) return true;
|
||||
|
||||
// We always record the current mouse position.
|
||||
mouseX = e.pageX || e.clientX + document.documentElement.scrollLeft;
|
||||
mouseY = e.pageY || e.clientY + document.documentElement.scrollTop;
|
||||
// Record the relative mouse movement, in case we're dragging.
|
||||
// Add any previously stored & ignored offset to the calculations.
|
||||
var diffX = mouseX - lastMouseX + mOffX;
|
||||
var diffY = mouseY - lastMouseY + mOffY;
|
||||
mOffX = mOffY = 0;
|
||||
// Update last processed mouse positions.
|
||||
lastMouseX = mouseX;
|
||||
lastMouseY = mouseY;
|
||||
|
||||
// That's all we do if we're not dragging anything.
|
||||
if (!handle) return true;
|
||||
|
||||
// If included in the script, run the resize handle drag routine.
|
||||
// Let it create an object representing the drag offsets.
|
||||
var isResize = false;
|
||||
if (this.resizeHandleDrag && this.resizeHandleDrag(diffX, diffY)) {
|
||||
isResize = true;
|
||||
} else {
|
||||
// If the resize drag handler isn't set or returns fase (to indicate the drag was
|
||||
// not on a resize handle), we must be dragging the whole element, so move that.
|
||||
// Bounds check left-right...
|
||||
var dX = diffX, dY = diffY;
|
||||
if (elmX + dX < minLeft) mOffX = (dX - (diffX = minLeft - elmX));
|
||||
else if (elmX + elmW + dX > maxLeft) mOffX = (dX - (diffX = maxLeft - elmX - elmW));
|
||||
// ...and up-down.
|
||||
if (elmY + dY < minTop) mOffY = (dY - (diffY = minTop - elmY));
|
||||
else if (elmY + elmH + dY > maxTop) mOffY = (dY - (diffY = maxTop - elmY - elmH));
|
||||
elmX += diffX;
|
||||
elmY += diffY;
|
||||
}
|
||||
|
||||
// Assign new info back to the element, with minimum dimensions.
|
||||
with (element.style) {
|
||||
left = elmX + 'px';
|
||||
width = elmW + 'px';
|
||||
top = elmY + 'px';
|
||||
height = elmH + 'px';
|
||||
}
|
||||
|
||||
// Evil, dirty, hackish Opera select-as-you-drag fix.
|
||||
if (window.opera && document.documentElement) {
|
||||
var oDF = document.getElementById('op-drag-fix');
|
||||
if (!oDF) {
|
||||
var oDF = document.createElement('input');
|
||||
oDF.id = 'op-drag-fix';
|
||||
oDF.style.display = 'none';
|
||||
document.body.appendChild(oDF);
|
||||
}
|
||||
oDF.focus();
|
||||
}
|
||||
|
||||
if (ondragmove) this.ondragmove(isResize);
|
||||
|
||||
// Stop a normal drag event.
|
||||
cancelEvent(e);
|
||||
}};
|
||||
|
||||
|
||||
DragResize.prototype.deselect = function(delHandles) { with (this)
|
||||
{
|
||||
// Immediately stops dragging an element. If 'delHandles' is true, this
|
||||
// remove the handles from the element and clears the element flag,
|
||||
// completely resetting the .
|
||||
DragResize.prototype.mouseUp = function(e) { with (this) {
|
||||
// On mouseup, stop dragging, but don't reset handler visibility.
|
||||
if (!document.getElementById || !enabled) return;
|
||||
|
||||
if (!document.getElementById || !enabled) return;
|
||||
|
||||
if (delHandles)
|
||||
{
|
||||
if (ondragblur) this.ondragblur();
|
||||
if (this.resizeHandleSet) this.resizeHandleSet(element, false);
|
||||
element = null;
|
||||
}
|
||||
|
||||
handle = null;
|
||||
mOffX = 0;
|
||||
mOffY = 0;
|
||||
var hRE = new RegExp(myName + '-([trmbl]{2})', '');
|
||||
if (handle && ondragend) this.ondragend(hRE.test(handle.className));
|
||||
deselect(false);
|
||||
}};
|
||||
|
||||
|
||||
DragResize.prototype.mouseDown = function(e) { with (this)
|
||||
{
|
||||
// Suitable elements are selected for drag/resize on mousedown.
|
||||
// We also initialise the resize boxes, and drag parameters like mouse position etc.
|
||||
if (!document.getElementById || !enabled) return true;
|
||||
|
||||
var elm = e.target || e.srcElement,
|
||||
newElement = null,
|
||||
newHandle = null,
|
||||
hRE = new RegExp(myName + '-([trmbl]{2})', '');
|
||||
|
||||
while (elm)
|
||||
{
|
||||
// Loop up the DOM looking for matching elements. Remember one if found.
|
||||
if (elm.className)
|
||||
{
|
||||
if (!newHandle && (hRE.test(elm.className) || isHandle(elm))) newHandle = elm;
|
||||
if (isElement(elm)) { newElement = elm; break }
|
||||
}
|
||||
elm = elm.parentNode;
|
||||
}
|
||||
|
||||
// If this isn't on the last dragged element, call deselect(),
|
||||
// which will hide its handles and clear element.
|
||||
if (element && (element != newElement) && allowBlur) deselect(true);
|
||||
|
||||
// If we have a new matching element, call select().
|
||||
if (newElement && (!element || (newElement == element)))
|
||||
{
|
||||
// Stop mouse selections if we're dragging a handle.
|
||||
if (newHandle) cancelEvent(e);
|
||||
select(newElement, newHandle);
|
||||
handle = newHandle;
|
||||
if (handle && ondragstart) this.ondragstart(hRE.test(handle.className));
|
||||
}
|
||||
}};
|
||||
|
||||
|
||||
DragResize.prototype.mouseMove = function(e) { with (this)
|
||||
{
|
||||
// This continually offsets the dragged element by the difference between the
|
||||
// last recorded mouse position (mouseX/Y) and the current mouse position.
|
||||
if (!document.getElementById || !enabled) return true;
|
||||
|
||||
// We always record the current mouse position.
|
||||
mouseX = e.pageX || e.clientX + document.documentElement.scrollLeft;
|
||||
mouseY = e.pageY || e.clientY + document.documentElement.scrollTop;
|
||||
// Record the relative mouse movement, in case we're dragging.
|
||||
// Add any previously stored & ignored offset to the calculations.
|
||||
var diffX = mouseX - lastMouseX + mOffX;
|
||||
var diffY = mouseY - lastMouseY + mOffY;
|
||||
mOffX = mOffY = 0;
|
||||
// Update last processed mouse positions.
|
||||
lastMouseX = mouseX;
|
||||
lastMouseY = mouseY;
|
||||
|
||||
// That's all we do if we're not dragging anything.
|
||||
if (!handle) return true;
|
||||
|
||||
// If included in the script, run the resize handle drag routine.
|
||||
// Let it create an object representing the drag offsets.
|
||||
var isResize = false;
|
||||
if (this.resizeHandleDrag && this.resizeHandleDrag(diffX, diffY))
|
||||
{
|
||||
isResize = true;
|
||||
}
|
||||
else
|
||||
{
|
||||
// If the resize drag handler isn't set or returns fase (to indicate the drag was
|
||||
// not on a resize handle), we must be dragging the whole element, so move that.
|
||||
// Bounds check left-right...
|
||||
var dX = diffX, dY = diffY;
|
||||
if (elmX + dX < minLeft) mOffX = (dX - (diffX = minLeft - elmX));
|
||||
else if (elmX + elmW + dX > maxLeft) mOffX = (dX - (diffX = maxLeft - elmX - elmW));
|
||||
// ...and up-down.
|
||||
if (elmY + dY < minTop) mOffY = (dY - (diffY = minTop - elmY));
|
||||
else if (elmY + elmH + dY > maxTop) mOffY = (dY - (diffY = maxTop - elmY - elmH));
|
||||
elmX += diffX;
|
||||
elmY += diffY;
|
||||
}
|
||||
|
||||
// Assign new info back to the element, with minimum dimensions.
|
||||
with (element.style)
|
||||
{
|
||||
left = elmX + 'px';
|
||||
width = elmW + 'px';
|
||||
top = elmY + 'px';
|
||||
height = elmH + 'px';
|
||||
}
|
||||
|
||||
// Evil, dirty, hackish Opera select-as-you-drag fix.
|
||||
if (window.opera && document.documentElement)
|
||||
{
|
||||
var oDF = document.getElementById('op-drag-fix');
|
||||
if (!oDF)
|
||||
{
|
||||
var oDF = document.createElement('input');
|
||||
oDF.id = 'op-drag-fix';
|
||||
oDF.style.display = 'none';
|
||||
document.body.appendChild(oDF);
|
||||
}
|
||||
oDF.focus();
|
||||
}
|
||||
|
||||
if (ondragmove) this.ondragmove(isResize);
|
||||
|
||||
// Stop a normal drag event.
|
||||
cancelEvent(e);
|
||||
}};
|
||||
|
||||
|
||||
DragResize.prototype.mouseUp = function(e) { with (this)
|
||||
{
|
||||
// On mouseup, stop dragging, but don't reset handler visibility.
|
||||
if (!document.getElementById || !enabled) return;
|
||||
|
||||
var hRE = new RegExp(myName + '-([trmbl]{2})', '');
|
||||
if (handle && ondragend) this.ondragend(hRE.test(handle.className));
|
||||
deselect(false);
|
||||
}};
|
||||
|
||||
|
||||
|
||||
/* Resize Code -- can be deleted if you're not using it. */
|
||||
DragResize.prototype.resizeHandleSet = function(elm, show) { with (this) {
|
||||
// Either creates, shows or hides the resize handles within an element.
|
||||
|
||||
DragResize.prototype.resizeHandleSet = function(elm, show) { with (this)
|
||||
{
|
||||
// Either creates, shows or hides the resize handles within an element.
|
||||
// If we're showing them, and no handles have been created, create 4 new ones.
|
||||
if (!elm._handle_tr) {
|
||||
for (var h = 0; h < handles.length; h++) {
|
||||
// Create 4 news divs, assign each a generic + specific class.
|
||||
var hDiv = document.createElement('div');
|
||||
hDiv.className = myName + ' ' + myName + '-' + handles[h];
|
||||
elm['_handle_' + handles[h]] = elm.appendChild(hDiv);
|
||||
}
|
||||
}
|
||||
|
||||
// If we're showing them, and no handles have been created, create 4 new ones.
|
||||
if (!elm._handle_tr)
|
||||
{
|
||||
for (var h = 0; h < handles.length; h++)
|
||||
{
|
||||
// Create 4 news divs, assign each a generic + specific class.
|
||||
var hDiv = document.createElement('div');
|
||||
hDiv.className = myName + ' ' + myName + '-' + handles[h];
|
||||
elm['_handle_' + handles[h]] = elm.appendChild(hDiv);
|
||||
}
|
||||
}
|
||||
|
||||
// We now have handles. Find them all and show/hide.
|
||||
for (var h = 0; h < handles.length; h++)
|
||||
{
|
||||
elm['_handle_' + handles[h]].style.visibility = show ? 'inherit' : 'hidden';
|
||||
}
|
||||
// We now have handles. Find them all and show/hide.
|
||||
for (var h = 0; h < handles.length; h++) {
|
||||
elm['_handle_' + handles[h]].style.visibility = show ? 'inherit' : 'hidden';
|
||||
}
|
||||
}};
|
||||
|
||||
|
||||
DragResize.prototype.resizeHandleDrag = function(diffX, diffY) { with (this)
|
||||
{
|
||||
// Passed the mouse movement amounts. This function checks to see whether the
|
||||
// drag is from a resize handle created above; if so, it changes the stored
|
||||
// elm* dimensions and mOffX/Y.
|
||||
DragResize.prototype.resizeHandleDrag = function(diffX, diffY) { with (this) {
|
||||
// Passed the mouse movement amounts. This function checks to see whether the
|
||||
// drag is from a resize handle created above; if so, it changes the stored
|
||||
// elm* dimensions and mOffX/Y.
|
||||
|
||||
var hClass = handle && handle.className &&
|
||||
handle.className.match(new RegExp(myName + '-([tmblr]{2})')) ? RegExp.$1 : '';
|
||||
var hClass = handle && handle.className &&
|
||||
handle.className.match(new RegExp(myName + '-([tmblr]{2})')) ? RegExp.$1 : '';
|
||||
|
||||
// If the hClass is one of the resize handles, resize one or two dimensions.
|
||||
// Bounds checking is the hard bit -- basically for each edge, check that the
|
||||
// element doesn't go under minimum size, and doesn't go beyond its boundary.
|
||||
var dY = diffY, dX = diffX, processed = false;
|
||||
if (hClass.indexOf('t') >= 0)
|
||||
{
|
||||
rs = 1;
|
||||
if (elmH - dY < minHeight) mOffY = (dY - (diffY = elmH - minHeight));
|
||||
else if (elmY + dY < minTop) mOffY = (dY - (diffY = minTop - elmY));
|
||||
elmY += diffY;
|
||||
elmH -= diffY;
|
||||
processed = true;
|
||||
}
|
||||
if (hClass.indexOf('b') >= 0)
|
||||
{
|
||||
rs = 1;
|
||||
if (elmH + dY < minHeight) mOffY = (dY - (diffY = minHeight - elmH));
|
||||
else if (elmY + elmH + dY > maxTop) mOffY = (dY - (diffY = maxTop - elmY - elmH));
|
||||
elmH += diffY;
|
||||
processed = true;
|
||||
}
|
||||
if (hClass.indexOf('l') >= 0)
|
||||
{
|
||||
rs = 1;
|
||||
if (elmW - dX < minWidth) mOffX = (dX - (diffX = elmW - minWidth));
|
||||
else if (elmX + dX < minLeft) mOffX = (dX - (diffX = minLeft - elmX));
|
||||
elmX += diffX;
|
||||
elmW -= diffX;
|
||||
processed = true;
|
||||
}
|
||||
if (hClass.indexOf('r') >= 0)
|
||||
{
|
||||
rs = 1;
|
||||
if (elmW + dX < minWidth) mOffX = (dX - (diffX = minWidth - elmW));
|
||||
else if (elmX + elmW + dX > maxLeft) mOffX = (dX - (diffX = maxLeft - elmX - elmW));
|
||||
elmW += diffX;
|
||||
processed = true;
|
||||
}
|
||||
|
||||
return processed;
|
||||
// If the hClass is one of the resize handles, resize one or two dimensions.
|
||||
// Bounds checking is the hard bit -- basically for each edge, check that the
|
||||
// element doesn't go under minimum size, and doesn't go beyond its boundary.
|
||||
var dY = diffY, dX = diffX, processed = false;
|
||||
if (hClass.indexOf('t') >= 0) {
|
||||
rs = 1;
|
||||
if (elmH - dY < minHeight) mOffY = (dY - (diffY = elmH - minHeight));
|
||||
else if (elmY + dY < minTop) mOffY = (dY - (diffY = minTop - elmY));
|
||||
elmY += diffY;
|
||||
elmH -= diffY;
|
||||
processed = true;
|
||||
}
|
||||
if (hClass.indexOf('b') >= 0) {
|
||||
rs = 1;
|
||||
if (elmH + dY < minHeight) mOffY = (dY - (diffY = minHeight - elmH));
|
||||
else if (elmY + elmH + dY > maxTop) mOffY = (dY - (diffY = maxTop - elmY - elmH));
|
||||
elmH += diffY;
|
||||
processed = true;
|
||||
}
|
||||
if (hClass.indexOf('l') >= 0) {
|
||||
rs = 1;
|
||||
if (elmW - dX < minWidth) mOffX = (dX - (diffX = elmW - minWidth));
|
||||
else if (elmX + dX < minLeft) mOffX = (dX - (diffX = minLeft - elmX));
|
||||
elmX += diffX;
|
||||
elmW -= diffX;
|
||||
processed = true;
|
||||
}
|
||||
if (hClass.indexOf('r') >= 0) {
|
||||
rs = 1;
|
||||
if (elmW + dX < minWidth) mOffX = (dX - (diffX = minWidth - elmW));
|
||||
else if (elmX + elmW + dX > maxLeft) mOffX = (dX - (diffX = maxLeft - elmX - elmW));
|
||||
elmW += diffX;
|
||||
processed = true;
|
||||
}
|
||||
return processed;
|
||||
}};
|
Loading…
Reference in New Issue
Block a user