// version: 2017-11-25
/**
* o--------------------------------------------------------------------------------o
* | This file is part of the RGraph package - you can learn more at: |
* | |
* | http://www.rgraph.net |
* | |
* | RGraph is licensed under the Open Source MIT license. That means that it's |
* | totally free to use and there are no restrictions on what you can do with it! |
* o--------------------------------------------------------------------------------o
*/
RGraph = window.RGraph || {isRGraph: true};
// Module pattern
(function (win, doc, undefined)
{
var RG = RGraph,
ua = navigator.userAgent,
ma = Math;
/**
* This gunction shows a context menu containing the parameters
* provided to it
*
* @param object canvas The canvas object
* @param array menuitems The context menu menuitems
* @param object e The event object
*/
RG.contextmenu =
RG.Contextmenu = function (obj, menuitems, e)
{
var canvas = obj.canvas;
e = RG.FixEventObject(e);
/**
* Fire the custom RGraph event onbeforecontextmenu
*/
RG.FireCustomEvent(obj, 'onbeforecontextmenu');
/**
* Hide any existing menu
*/
if (RG.Registry.Get('chart.contextmenu')) {
RG.HideContext();
}
// Hide any zoomed canvas
RG.HideZoomedCanvas();
/**
* Hide the palette if necessary
*/
RG.HidePalette();
/**
* This is here to ensure annotating is OFF
*/
obj.Set('chart.mousedown', false);
var x = e.pageX;
var y = e.pageY;
var div = document.createElement('div');
var bg = document.createElement('div');
div.className = 'RGraph_contextmenu';
div.__canvas__ = canvas; /* Store a reference to the canvas on the contextmenu object */
div.style.position = 'absolute';
div.style.left = 0;
div.style.top = 0;
div.style.border = '1px solid #666';
div.style.backgroundColor = 'white';
div.style.boxShadow = '1px 1px 3px #ddd';
div.style.MozBoxShadow = '1px 1px 3px #ddd';
div.style.WebkitBoxShadow = '1px 1px 3px #ddd';
div.style.opacity = 0;
bg.className = 'RGraph_contextmenu_background';
bg.style.position = 'absolute';
bg.style.backgroundColor = '#ccc';
bg.style.borderRight = '1px solid #aaa';
bg.style.top = 0;
bg.style.left = 0;
bg.style.width = '18px';
bg.style.height = '100%';
bg.style.opacity = 0;
div = document.body.appendChild(div);
bg = div.appendChild(bg);
/**
* Now add the context menu items
*/
for (i=0; i<menuitems.length; ++i) {
var menuitem = document.createElement('div');
menuitem.__object__ = obj;
menuitem.__canvas__ = canvas;
menuitem.__contextmenu__ = div;
menuitem.className = 'RGraph_contextmenu_item';
if (menuitems[i]) {
menuitem.style.padding = '2px 5px 2px 23px';
menuitem.style.fontFamily = 'Arial';
menuitem.style.fontSize = '10pt';
menuitem.style.textAlign = 'left';
menuitem.style.fontWeight = 'normal';
menuitem.innerHTML = menuitems[i][0];
if (RG.is_array(menuitems[i][1])) {
menuitem.style.backgroundImage = 'url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAYAAADEUlfTAAAAQUlEQVQImY3NoQ2AMABE0ZewABMyGQ6mqWODzlAclBSFO8HZl8uf0FFxCHtwYkt4Y6ChYE44cGH9/fyae2p2LAleW9oVTQuVf6gAAAAASUVORK5CYII=)';
menuitem.style.backgroundRepeat = 'no-repeat';
menuitem.style.backgroundPosition = '97% center';
}
// Add the mouseover event
if (menuitems[i][1]) {
if (menuitem.addEventListener) {
menuitem.addEventListener("mouseover", function (e) {RG.HideContextSubmenu(); e.target.style.backgroundColor = 'rgba(0,0,0,0.2)'; e.target.style.cursor = 'pointer';}, false);
menuitem.addEventListener("mouseout", function (e) {e.target.style.backgroundColor = 'inherit'; e.target.style.cursor = 'default';}, false);
} else {
menuitem.attachEvent("onmouseover", function () {RG.HideContextSubmenu();event.srcElement.style.backgroundColor = '#eee';event.srcElement.style.cursor = 'pointer';}
, false);
menuitem.attachEvent("onmouseout", function () {event.srcElement.style.backgroundColor = 'inherit'; event.srcElement.style.cursor = 'default';}, false);
}
} else {
if (menuitem.addEventListener) {
menuitem.addEventListener("mouseover", function (e) {e.target.style.cursor = 'default';}, false);
menuitem.addEventListener("mouseout", function (e) {e.target.style.cursor = 'default';}, false);
} else {
menuitem.attachEvent("onmouseover", function () {event.srcElement.style.cursor = 'default'}, false);
menuitem.attachEvent("onmouseout", function () {event.srcElement.style.cursor = 'default';}, false);
}
}
} else {
menuitem.style.borderBottom = '1px solid #ddd';
menuitem.style.marginLeft = '25px';
}
div.appendChild(menuitem);
/**
* Install the event handler that calls the menuitem
*/
if (menuitems[i] && menuitems[i][1] && typeof(menuitems[i][1]) == 'function') {
menuitem.addEventListener('click', menuitems[i][1], false);
// Submenu
} else if (menuitems[i] && menuitems[i][1] && RG.is_array(menuitems[i][1])) {
(function ()
{
var tmp = menuitems[i][1]; // This is here because of "references vs primitives" and how they're passed around in Javascript
// TODO This may need attention
menuitem.addEventListener('mouseover', function (e) {RG.Contextmenu_submenu(obj, tmp, e.target);}, false);
})();
}
}
/**
* Now all the menu items have been added, set the shadow width
* Shadow now handled by CSS3
*/
div.style.width = (div.offsetWidth + 10) + 'px';
div.style.height = (div.offsetHeight - 2) + 'px';
// Show the menu to the left or the right (normal) of the cursor?
if (x + div.offsetWidth > document.body.offsetWidth) {
x -= div.offsetWidth;
}
// Reposition the menu (now we have the real offsetWidth)
div.style.left = x + 'px';
div.style.top = y + 'px';
/**
* Do a little fade in effect
*/
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu')) obj.style.opacity = 0.2", 50);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu')) obj.style.opacity = 0.4", 100);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu')) obj.style.opacity = 0.6", 150);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu')) obj.style.opacity = 0.8", 200);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu')) obj.style.opacity = 1", 250);
// The fade in effect on the left gray bar
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu.bg')) obj.style.opacity = 0.2", 50);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu.bg')) obj.style.opacity = 0.4", 100);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu.bg')) obj.style.opacity = 0.6", 150);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu.bg')) obj.style.opacity = 0.8", 200);
setTimeout("if (obj = RGraph.Registry.Get('chart.contextmenu.bg')) obj.style.opacity = 1", 250);
// Store the context menu in the registry
RG.Registry.Set('chart.contextmenu', div);
RG.Registry.Set('chart.contextmenu.bg', bg);
RG.Registry.Get('chart.contextmenu').oncontextmenu = function () {return false;};
RG.Registry.Get('chart.contextmenu.bg').oncontextmenu = function () {return false;};
/**
* Install the event handlers that hide the context menu
*/
canvas.addEventListener('click', function () {RG.HideContext();}, false);
window.addEventListener('click', function ()
{
RG.HideContext();
}, false);
window.addEventListener('resize', function ()
{
RG.HideContext();
}, false);
/**
* Add the __shape__ object to the context menu
*/
/**
* Set the shape coords from the .getShape() method
*/
if (typeof(obj.getShape) == 'function') {
RG.Registry.Get('chart.contextmenu').__shape__ = obj.getShape(e);
}
e.stopPropagation();
/**
* Fire the (RGraph) oncontextmenu event
*/
RG.FireCustomEvent(obj, 'oncontextmenu');
return false;
};
/**
* Hides the context menu if it's currently visible
*/
RG.hideContext =
RG.HideContext = function ()
{
var cm = RG.Registry.Get('chart.contextmenu');
var cmbg = RG.Registry.Get('chart.contextmenu.bg');
//Hide any submenu currently being displayed
RG.HideContextSubmenu();
if (cm) {
cm.parentNode.removeChild(cm);
cmbg.parentNode.removeChild(cmbg);
cm.style.visibility = 'hidden';
cm.style.display = 'none';
RG.Registry.Set('chart.contextmenu', null);
cmbg.style.visibility = 'hidden';
cmbg.style.display = 'none';
RG.Registry.Set('chart.contextmenu.bg', null);
}
};
/**
* Hides the context menus SUBMENU if it's currently visible
*/
RG.hideContextSubmenu =
RG.HideContextSubmenu = function ()
{
var sub = RG.Registry.Get('chart.contextmenu.submenu');
if (sub) {
sub.style.visibility = 'none';
sub.style.display = 'none';
RG.Registry.Set('chart.contextmenu.submenu', null);
}
};
/**
* Shows the context menu after making a few checks - not opera (doesn't support oncontextmenu,
* not safari (tempermentality), not chrome (hmmm)
*/
RG.showContext =
RG.ShowContext = function (obj)
{
RG.HidePalette();
if (obj.Get('chart.contextmenu') && obj.Get('chart.contextmenu').length) {
var isOpera = navigator.userAgent.indexOf('Opera') >= 0;
var isSafari = navigator.userAgent.indexOf('Safari') >= 0;
var isChrome = navigator.userAgent.indexOf('Chrome') >= 0;
var isMacFirefox = navigator.userAgent.indexOf('Firefox') > 0 && navigator.userAgent.indexOf('Mac') > 0;
var isIE9 = navigator.userAgent.indexOf('MSIE 9') >= 0;
if (((!isOpera && !isSafari) || isChrome) && !isMacFirefox) {
obj.canvas.oncontextmenu = function (e)
{
e = RG.FixEventObject(e);
if (e.ctrlKey) return true;
RG.Contextmenu(obj, obj.Get('chart.contextmenu'), e);
return false;
}
// Accomodate Opera and Safari - use double click event
} else {
obj.canvas.addEventListener('dblclick', function (e)
{
if (e.ctrlKey) return true;
if (!RG.Registry.Get('chart.contextmenu')) {
RG.Contextmenu(obj, obj.Get('chart.contextmenu'), e);
}
}, false);
}
}
};
/**
* This draws a submenu should it be necessary
*
* @param object obj The graph object
* @param object menu The context menu
*/
RG.contextmenu_submenu =
RG.Contextmenu_submenu = function (obj, menuitems, parentMenuItem)
{
RG.HideContextSubmenu();
var canvas = obj.canvas;
var context = obj.context;
var menu = parentMenuItem.parentNode;
var subMenu = document.createElement('DIV');
subMenu.style.position = 'absolute';
subMenu.style.width = '100px';
subMenu.style.top = menu.offsetTop + parentMenuItem.offsetTop + 'px';
subMenu.style.left = (menu.offsetLeft + menu.offsetWidth - (RG.ISOLD ? 9 : 0)) + 'px';
subMenu.style.backgroundColor = 'white';
subMenu.style.border = '1px solid black';
subMenu.className = 'RGraph_contextmenu';
subMenu.__contextmenu__ = menu;
subMenu.style.boxShadow = '3px 3px 3px rgba(96,96,96,0.5)';
subMenu.style.MozBoxShadow = '3px 3px 3px rgba(96,96,96,0.5)';
subMenu.style.WebkitBoxShadow = '3px 3px 3px rgba(96,96,96,0.5)';
subMenu.style.filter = 'progid:DXImageTransform.Microsoft.Shadow(color=#aaaaaa,direction=135)';
document.body.appendChild(subMenu);
for (var i=0; i<menuitems.length; ++i) {
var menuitem = document.createElement('DIV');
menuitem.__canvas__ = canvas;
menuitem.__contextmenu__ = menu;
menuitem.className = 'RGraph_contextmenu_item';
if (menuitems[i]) {
menuitem.style.padding = '2px 5px 2px 23px';
menuitem.style.fontFamily = 'Arial';
menuitem.style.fontSize = '10pt';
menuitem.style.fontWeight = 'normal';
menuitem.style.textAlign = 'left';
menuitem.innerHTML = menuitems[i][0];
if (menuitems[i][1]) {
if (menuitem.addEventListener) {
menuitem.addEventListener("mouseover", function (e) {e.target.style.backgroundColor = 'rgba(0,0,0,0.2)'; e.target.style.cursor = 'pointer';}, false);
menuitem.addEventListener("mouseout", function (e) {e.target.style.backgroundColor = 'inherit'; e.target.style.cursor = 'default';}, false);
} else {
menuitem.attachEvent("onmouseover", function () {event.srcElement.style.backgroundColor = 'rgba(0,0,0,0.2)'; event.srcElement.style.cursor = 'pointer'}, false);
menuitem.attachEvent("onmouseout", function () {event.srcElement.style.backgroundColor = 'inherit'; event.srcElement.style.cursor = 'default';}, false);
}
} else {
if (menuitem.addEventListener) {
menuitem.addEventListener("mouseover", function (e) {e.target.style.cursor = 'default';}, false);
menuitem.addEventListener("mouseout", function (e) {e.target.style.cursor = 'default';}, false);
} else {
menuitem.attachEvent("onmouseover", function () {event.srcElement.style.cursor = 'default'}, false);
menuitem.attachEvent("onmouseout", function () {event.srcElement.style.cursor = 'default';}, false);
}
}
} else {
menuitem.style.borderBottom = '1px solid #ddd';
menuitem.style.marginLeft = '25px';
}
subMenu.appendChild(menuitem);
if (menuitems[i] && menuitems[i][1]) {
if (document.all) {
menuitem.attachEvent('onclick', menuitems[i][1]);
} else {
menuitem.addEventListener('click', menuitems[i][1], false);
}
}
}
var bg = document.createElement('DIV');
bg.className = 'RGraph_contextmenu_background';
bg.style.position = 'absolute';
bg.style.backgroundColor = '#ccc';
bg.style.borderRight = '1px solid #aaa';
bg.style.top = 0;
bg.style.left = 0;
bg.style.width = '18px';
bg.style.height = '100%';
bg = subMenu.appendChild(bg);
RG.Registry.Set('chart.contextmenu.submenu', subMenu);
};
/**
* A function designed to be used in conjunction with thed context menu
* to allow people to get image versions of canvases.
*
* @param canvas Optionally you can pass in the canvas, which will be used
*/
RG.showPNG = function ()
{
if (RG.ISIE8) {
alert('[RGRAPH PNG] Sorry, showing a PNG is not supported on MSIE8.');
return;
}
if (arguments[0] && arguments[0].id) {
var canvas = arguments[0];
var event = arguments[1];
} else if (RG.Registry.Get('chart.contextmenu')) {
var canvas = RG.Registry.Get('chart.contextmenu').__canvas__;
} else {
alert('[RGRAPH SHOWPNG] Could not find canvas!');
}
var obj = canvas.__object__;
/**
* Create the gray background DIV to cover the page
*/
var bg = document.createElement('DIV');
bg.id = '__rgraph_image_bg__';
bg.style.position = 'fixed';
bg.style.top = '-10px';
bg.style.left = '-10px';
bg.style.width = '5000px';
bg.style.height = '5000px';
bg.style.backgroundColor = 'rgb(204,204,204)';
bg.style.opacity = 0;
document.body.appendChild(bg);
/**
* Create the div that the graph sits in
*/
var div = document.createElement('DIV');
div.style.backgroundColor = 'white';
div.style.opacity = 0;
div.style.border = '1px solid black';
div.style.position = 'fixed';
div.style.top = '20%';
div.style.width = canvas.width + 'px';
div.style.height = canvas.height + 35 + 'px';
div.style.left = (document.body.clientWidth / 2) - (canvas.width / 2) + 'px';
div.style.padding = '5px';
div.style.borderRadius = '10px';
div.style.MozBorderRadius = '10px';
div.style.WebkitBorderRadius = '10px';
div.style.boxShadow = '0 0 15px rgba(96,96,96,0.5)';
div.style.MozBoxShadow = '0 0 15px rgba(96,96,96,0.5)';
div.style.WebkitBoxShadow = 'rgba(96,96,96,0.5) 0 0 15px';
div.__canvas__ = canvas;
div.__object__ = obj;
div.id = '__rgraph_image_div__';
document.body.appendChild(div);
/**
* Add the HTML text inputs
*/
div.innerHTML += '<div style="position: absolute; margin-left: 10px; top: ' + canvas.height + 'px; width: ' + (canvas.width - 50) + 'px; height: 25px"><span style="font-size: 12pt;display: inline; display: inline-block; width: 65px; text-align: right">URL:</span><textarea style="float: right; overflow: hidden; height: 20px; width: ' + (canvas.width - obj.gutterLeft - obj.gutterRight - 80) + 'px" onclick="this.select()" readonly="readonly" id="__rgraph_dataurl__">' + canvas.toDataURL() + '</textarea></div>';
div.innerHTML += '<div style="position: absolute; top: ' + (canvas.height + 25) + 'px; left: ' + (obj.gutterLeft - 65 + (canvas.width / 2)) + 'px; width: ' + (canvas.width - obj.gutterRight) + 'px; font-size: 65%">A link using the URL: <a href="' + canvas.toDataURL() + '">View</a></div>'
/**
* Create the image rendition of the graph
*/
var img = document.createElement('IMG');
RG.Registry.Set('chart.png', img);
img.__canvas__ = canvas;
img.__object__ = obj;
img.id = '__rgraph_image_img__';
img.className = 'RGraph_png';
img.src = canvas.toDataURL();
div.appendChild(img);
setTimeout(function () {document.getElementById("__rgraph_dataurl__").select();}, 50);
window.addEventListener('resize', function (e){var img = RG.Registry.Get('chart.png');img.style.left = (document.body.clientWidth / 2) - (img.width / 2) + 'px';}, false);
bg.onclick = function (e)
{
var div = document.getElementById("__rgraph_image_div__");
var bg = document.getElementById("__rgraph_image_bg__");
if (div) {
div.style.opacity = 0;
div.parentNode.removeChild(div);
div.id = '';
div.style.display = 'none';
div = null;
}
if (bg) {
bg.style.opacity = 0;
bg.id = '';
bg.style.display = 'none';
bg = null;
}
}
window.addEventListener('resize', function (e) {bg.onclick(e);}, false)
/**
* This sets the image BG and the DIV as global variables, circumventing repeated calls to document.getElementById()
*/
RG.showpng_image_bg = bg;
RG.showpng_image_div = div;
setTimeout('RGraph.showpng_image_div.style.opacity = 0.2', 50);
setTimeout('RGraph.showpng_image_div.style.opacity = 0.4', 100);
setTimeout('RGraph.showpng_image_div.style.opacity = 0.6', 150);
setTimeout('RGraph.showpng_image_div.style.opacity = 0.8', 200);
setTimeout('RGraph.showpng_image_div.style.opacity = 1', 250);
setTimeout('RGraph.showpng_image_bg.style.opacity = 0.1', 50);
setTimeout('RGraph.showpng_image_bg.style.opacity = 0.2', 100);
setTimeout('RGraph.showpng_image_bg.style.opacity = 0.3', 150);
setTimeout('RGraph.showpng_image_bg.style.opacity = 0.4', 200);
setTimeout('RGraph.showpng_image_bg.style.opacity = 0.5', 250);
img.onclick = function (e)
{
if (e.stopPropagation) e.stopPropagation();
else event.cancelBubble = true;
}
if (event && event.stopPropagation) {
event.stopPropagation();
}
};
// End module pattern
})(window, document);