MousePosition.js
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/**
* MousePosition.js
*
* Released under LGPL License.
* Copyright (c) 1999-2016 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/**
* This module calculates an absolute coordinate inside the editor body for both local and global mouse events.
*
* @private
* @class tinymce.dom.MousePosition
*/
define("tinymce/dom/MousePosition", [
], function() {
var getAbsolutePosition = function (elm) {
var doc, docElem, win, clientRect;
clientRect = elm.getBoundingClientRect();
doc = elm.ownerDocument;
docElem = doc.documentElement;
win = doc.defaultView;
return {
top: clientRect.top + win.pageYOffset - docElem.clientTop,
left: clientRect.left + win.pageXOffset - docElem.clientLeft
};
};
var getBodyPosition = function (editor) {
return editor.inline ? getAbsolutePosition(editor.getBody()) : {left: 0, top: 0};
};
var getScrollPosition = function (editor) {
var body = editor.getBody();
return editor.inline ? {left: body.scrollLeft, top: body.scrollTop} : {left: 0, top: 0};
};
var getBodyScroll = function (editor) {
var body = editor.getBody(), docElm = editor.getDoc().documentElement;
var inlineScroll = {left: body.scrollLeft, top: body.scrollTop};
var iframeScroll = {left: body.scrollLeft || docElm.scrollLeft, top: body.scrollTop || docElm.scrollTop};
return editor.inline ? inlineScroll : iframeScroll;
};
var getMousePosition = function (editor, event) {
if (event.target.ownerDocument !== editor.getDoc()) {
var iframePosition = getAbsolutePosition(editor.getContentAreaContainer());
var scrollPosition = getBodyScroll(editor);
return {
left: event.pageX - iframePosition.left + scrollPosition.left,
top: event.pageY - iframePosition.top + scrollPosition.top
};
}
return {
left: event.pageX,
top: event.pageY
};
};
var calculatePosition = function (bodyPosition, scrollPosition, mousePosition) {
return {
pageX: (mousePosition.left - bodyPosition.left) + scrollPosition.left,
pageY: (mousePosition.top - bodyPosition.top) + scrollPosition.top
};
};
var calc = function (editor, event) {
return calculatePosition(getBodyPosition(editor), getScrollPosition(editor), getMousePosition(editor, event));
};
return {
calc: calc
};
});