mock-interactions.js
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/**
* @license
* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
*/
(function(global) {
'use strict';
var HAS_NEW_MOUSE = (function() {
var has = false;
try {
has = Boolean(new MouseEvent('x'));
} catch (_) {}
return has;
})();
function middleOfNode(node) {
var bcr = node.getBoundingClientRect();
return {
y: bcr.top + (bcr.height / 2),
x: bcr.left + (bcr.width / 2)
};
}
function topLeftOfNode(node) {
var bcr = node.getBoundingClientRect();
return {
y: bcr.top,
x: bcr.left
};
}
function makeEvent(type, xy, node) {
var props = {
bubbles: true,
cancelable: true,
clientX: xy.x,
clientY: xy.y,
// Make this a primary input.
buttons: 1 // http://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/buttons
};
var e;
var mousetype = type === 'tap' ? 'click' : 'mouse' + type;
if (HAS_NEW_MOUSE) {
e = new MouseEvent(mousetype, props);
} else {
e = document.createEvent('MouseEvent');
e.initMouseEvent(
mousetype, props.bubbles, props.cancelable,
null, /* view */
null, /* detail */
0, /* screenX */
0, /* screenY */
props.clientX, props.clientY,
false, /*ctrlKey */
false, /*altKey */
false, /*shiftKey */
false, /*metaKey */
0, /*button */
null /*relatedTarget*/);
}
node.dispatchEvent(e);
}
function down(node, xy) {
xy = xy || middleOfNode(node);
makeEvent('down', xy, node);
}
function move(node, fromXY, toXY, steps) {
steps = steps || 5;
var dx = Math.round((fromXY.x - toXY.x) / steps);
var dy = Math.round((fromXY.y - toXY.y) / steps);
var xy = {
x: fromXY.x,
y: fromXY.y
};
for (var i = steps; i > 0; i--) {
makeEvent('move', xy, node);
xy.x += dx;
xy.y += dy;
}
makeEvent('move', {
x: toXY.x,
y: toXY.y
}, node);
}
function up(node, xy) {
xy = xy || middleOfNode(node);
makeEvent('up', xy, node);
}
function tap(node) {
// Respect nodes that are disabled in the UI.
if (window.getComputedStyle(node)['pointer-events'] === 'none')
return;
var xy = middleOfNode(node);
down(node, xy);
up(node, xy);
makeEvent('tap', xy, node);
}
function focus(target) {
Polymer.Base.fire('focus', {}, {
bubbles: false,
node: target
});
}
function blur(target) {
Polymer.Base.fire('blur', {}, {
bubbles: false,
node: target
});
}
function downAndUp(target, callback) {
down(target);
Polymer.Base.async(function() {
up(target);
tap(target);
callback && callback();
});
}
function track(target, dx, dy, steps) {
dx = dx | 0;
dy = dy | 0;
steps = steps || 5;
down(target);
var xy = middleOfNode(target);
var xy2 = {
x: xy.x + dx,
y: xy.y + dy
};
move(target, xy, xy2, steps);
up(target, xy2);
}
function keyboardEventFor(type, keyCode) {
var event = new CustomEvent(type, {
bubbles: true,
cancelable: true
});
event.keyCode = keyCode;
event.code = keyCode;
return event;
}
function keyEventOn(target, type, keyCode) {
target.dispatchEvent(keyboardEventFor(type, keyCode));
}
function keyDownOn(target, keyCode) {
keyEventOn(target, 'keydown', keyCode);
}
function keyUpOn(target, keyCode) {
keyEventOn(target, 'keyup', keyCode);
}
function pressAndReleaseKeyOn(target, keyCode) {
keyDownOn(target, keyCode);
Polymer.Base.async(function() {
keyUpOn(target, keyCode);
}, 1);
}
function pressEnter(target) {
pressAndReleaseKeyOn(target, 13);
}
function pressSpace(target) {
pressAndReleaseKeyOn(target, 32);
}
global.MockInteractions = {
focus: focus,
blur: blur,
down: down,
up: up,
downAndUp: downAndUp,
tap: tap,
track: track,
pressAndReleaseKeyOn: pressAndReleaseKeyOn,
pressEnter: pressEnter,
pressSpace: pressSpace,
keyDownOn: keyDownOn,
keyUpOn: keyUpOn,
middleOfNode: middleOfNode,
topLeftOfNode: topLeftOfNode
};
})(this);