mouse.js
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/*!
* Casper is a navigation utility for PhantomJS.
*
* Documentation: http://casperjs.org/
* Repository: http://github.com/n1k0/casperjs
*
* Copyright (c) 2011-2012 Nicolas Perriault
*
* Part of source code is Copyright Joyent, Inc. and other Node contributors.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
/*global CasperError, exports, patchRequire, require:true*/
var require = patchRequire(require);
var utils = require('utils');
exports.create = function create(casper) {
"use strict";
return new Mouse(casper);
};
var Mouse = function Mouse(casper) {
"use strict";
if (!utils.isCasperObject(casper)) {
throw new CasperError('Mouse() needs a Casper instance');
}
var slice = Array.prototype.slice,
nativeEvents = ['mouseup', 'mousedown', 'click', 'mousemove'];
if (utils.gteVersion(phantom.version, '1.8.0')) {
nativeEvents.push('doubleclick');
}
var emulatedEvents = ['mouseover', 'mouseout'],
supportedEvents = nativeEvents.concat(emulatedEvents);
function computeCenter(selector) {
var bounds = casper.getElementBounds(selector);
if (utils.isClipRect(bounds)) {
var x = Math.round(bounds.left + bounds.width / 2);
var y = Math.round(bounds.top + bounds.height / 2);
return [x, y];
}
}
function processEvent(type, args) {
if (!utils.isString(type) || supportedEvents.indexOf(type) === -1) {
throw new CasperError('Mouse.processEvent(): Unsupported mouse event type: ' + type);
}
if (emulatedEvents.indexOf(type) > -1) {
casper.log("Mouse.processEvent(): no native fallback for type " + type, "warning");
}
args = slice.call(args); // cast Arguments -> Array
casper.emit('mouse.' + type.replace('mouse', ''), args);
switch (args.length) {
case 0:
throw new CasperError('Mouse.processEvent(): Too few arguments');
case 1:
// selector
casper.page.sendEvent.apply(casper.page, [type].concat(computeCenter(args[0])));
break;
case 2:
// coordinates
if (!utils.isNumber(args[0]) || !utils.isNumber(args[1])) {
throw new CasperError('Mouse.processEvent(): No valid coordinates passed: ' + args);
}
casper.page.sendEvent(type, args[0], args[1]);
break;
default:
throw new CasperError('Mouse.processEvent(): Too many arguments');
}
}
this.processEvent = function() {
processEvent(arguments[0], slice.call(arguments, 1));
};
this.click = function click() {
processEvent('click', arguments);
};
this.doubleclick = function doubleclick() {
processEvent('doubleclick', arguments);
};
this.down = function down() {
processEvent('mousedown', arguments);
};
this.move = function move() {
processEvent('mousemove', arguments);
};
this.up = function up() {
processEvent('mouseup', arguments);
};
};
exports.Mouse = Mouse;