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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Custom binding for the experimental offscreenTabs API.
var binding = require('binding').Binding.create('experimental.offscreenTabs');
binding.registerCustomHook(
'experimental.offscreenTabs', function(api) {
var apiFunctions = api.apiFunctions;
function maybeCopy(src, prop, dest) {
if (src[prop] !== undefined)
dest[prop] = src[prop];
};
function keyboardEventFilter(e) {
var result = {
type: e.type,
ctrlKey: e.ctrlKey,
shiftKey: e.shiftKey,
altKey: e.altKey,
metaKey: e.metaKey,
};
maybeCopy(e, 'keyCode', result);
maybeCopy(e, 'charCode', result);
return result;
};
function mouseEventFilter(e) {
var result = {
type: e.type,
ctrlKey: e.ctrlKey,
shiftKey: e.shiftKey,
altKey: e.altKey,
metaKey: e.metaKey,
button: e.button,
};
maybeCopy(e, 'wheelDeltaX', result);
maybeCopy(e, 'wheelDeltaY', result);
return result;
};
// We are making a copy of |arr|, but applying |func| to index 1.
function validate(arr, func) {
var newArr = [];
for (var i = 0; i < arr.length; i++)
newArr.push(i == 1 && typeof(arr) == 'object' ? func(arr[i]) : arr[i]);
return newArr;
}
apiFunctions.setUpdateArgumentsPreValidate(
'sendKeyboardEvent',
function() { return validate(arguments, keyboardEventFilter); });
apiFunctions.setUpdateArgumentsPreValidate(
'sendMouseEvent',
function() { return validate(arguments, mouseEventFilter); });
});
exports.binding = binding.generate();
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