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update example so that it respects the drag start #624

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update example so that it respects the drag start #624

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f40bde0
update example so that it respects the drag start
May 30, 2015
4463d7d
tabs -> spaces in example code
May 30, 2015
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89 changes: 49 additions & 40 deletions tutorials/Mouse Interaction/drag.html
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Original file line number Diff line number Diff line change
@@ -1,46 +1,55 @@

<!DOCTYPE html>
<html>
<head>
<title>EaselJS demo: Dragging</title>
<link href="../_shared/demo.css" rel="stylesheet" type="text/css">
<script src="http://code.createjs.com/easeljs-0.7.0.min.js"></script>
<script>
var stage, output;

function init() {
stage = new createjs.Stage("demoCanvas");

// this lets our drag continue to track the mouse even when it leaves the canvas:
// play with commenting this out to see the difference.
stage.mouseMoveOutside = true;

var circle = new createjs.Shape();
circle.graphics.beginFill("red").drawCircle(0, 0, 50);

var label = new createjs.Text("drag me", "bold 14px Arial", "#FFFFFF");
label.textAlign = "center";
label.y = -7;

var dragger = new createjs.Container();
dragger.x = dragger.y = 100;
dragger.addChild(circle, label);
stage.addChild(dragger);

dragger.on("pressmove",function(evt) {
// currentTarget will be the container that the event listener was added to:
evt.currentTarget.x = evt.stageX;
evt.currentTarget.y = evt.stageY;
// make sure to redraw the stage to show the change:
stage.update();
});

stage.update();
}
</script>
<title>EaselJS demo: Dragging</title>
<link href="../_shared/demo.css" rel="stylesheet" type="text/css">
<script src="http://code.createjs.com/easeljs-0.7.0.min.js"></script>
<script>
var stage, output;

function init() {
stage = new createjs.Stage("demoCanvas");
stage.enableMouseOver(30); // enable mouse over so we can control mouse cursor

// this lets our drag continue to track the mouse even when it leaves the canvas:
// play with commenting this out to see the difference.
stage.mouseMoveOutside = true;

var circle = new createjs.Shape();
circle.graphics.beginFill("red").drawCircle(0, 0, 50);

var label = new createjs.Text("drag me", "bold 14px Arial", "#FFFFFF");
label.textAlign = "center";
label.y = -7;

var dragger = new createjs.Container();
dragger.x = dragger.y = 100;
dragger.cursor = "move";
dragger.addChild(circle, label);
stage.addChild(dragger);


dragger.on("mousedown", function(evt) {
// note where the drag initiated on the shape
evt.currentTarget.dragOffset = evt.currentTarget.globalToLocal(evt.stageX, evt.stageY);
});

dragger.on("pressmove",function(evt) {
// currentTarget will be the container that the event listener was added to:
evt.currentTarget.x = evt.stageX - evt.currentTarget.dragOffset.x;
evt.currentTarget.y = evt.stageY - evt.currentTarget.dragOffset.y;
// make sure to redraw the stage to show the change:
stage.update();
});

stage.update();
}
</script>
</head>
<body onload="init();">
<canvas id="demoCanvas" width="500" height="200">
alternate content
</canvas>
<canvas id="demoCanvas" width="500" height="200">
alternate content
</canvas>
</body>
</html>
</html>