Greasemonkey/Scriptish only. Add 'Search by Image' in browser context menu when you right click on image to search Google with that image.
目前為
/*
Google Image Search Context Menu
Add 'Search by Image' in browser context menu when you
right click on image to search Google with that image.
Copyright (C) 2012 LouCypher
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
// ==UserScript==
// @name Google Image Search Context Menu
// @namespace http://userscripts.org/users/12
// @description Greasemonkey/Scriptish only. Add 'Search by Image' in browser context menu when you right click on image to search Google with that image.
// @version 1.2
// @author LouCypher
// @license GPL
// @resource license https://raw.github.com/LouCypher/userscripts/master/licenses/GPL/LICENSE.txt
// @include *
// @exclude file://*
// @grant GM_openInTab
// ==/UserScript==
if (!("contextMenu" in document.documentElement &&
"HTMLMenuItemElement" in window)) return;
var body = document.body;
body.addEventListener("contextmenu", initMenu, false);
var menu = body.appendChild(document.createElement("menu"));
menu.outerHTML = '<menu id="userscript-search-by-image" type="context">\
<menuitem label="Search Google with this image"\
icon="data:image/png;base64,\
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz\
AAAK6wAACusBgosNWgAAABx0RVh0U29mdHdhcmUAQWRvYmUgRmlyZXdvcmtzIENTNXG14zYAAAEl\
SURBVDiNY/z//z8DJYCRkIKsthv/kRX9Z2BgmFalARdiIcaGKZXqcH5O+01U+ay2G3MYGBiSiXUm\
mofnsBDSjEUTMkiBe2Eq1JnZ7TcZBHhZGNythBl0lLkZODmYGX7++sdw/sZnhl3H3zF8+voHwwsY\
FkR5ijNICLMzTF31hOHnr38MHGxMDJlhMgwv3vxkWL7jJYpaJmzu0lTigWtmYGBg+PHrH8P0VU8Y\
tJV5MNRiNYCfmxmuGQZ+/PrHwMmOqRyrAX///WfgYEOV4mBjwjAUpwHHL31iyA6XgRvCwcbEkBUm\
w3DuxmcMtVgDkYONicHLVoTBSJOXgYONieHHz38Ml+98Ydh88DXDtx//CBtACmBiYGCYS4H+OYyU\
5kasgUgKAADN8WLFzlj9rgAAAABJRU5ErkJggg=="></menuitem>\
</menu>';
document.querySelector("#userscript-search-by-image menuitem")
.addEventListener("click", searchImage, false);
function initMenu(aEvent) {
// Executed when user right click on web page body
// aEvent.target is the element you right click on
var node = aEvent.target;
var item = document.querySelector("#userscript-search-by-image menuitem");
if (node.localName == "img") {
body.setAttribute("contextmenu", "userscript-search-by-image");
item.setAttribute("imageURL", node.src);
} else {
body.removeAttribute("contextmenu");
item.removeAttribute("imageURL");
}
}
function addParamsToForm(aForm, aKey, aValue) {
var hiddenField = document.createElement("input");
hiddenField.setAttribute("type", "hidden");
hiddenField.setAttribute("name", aKey);
hiddenField.setAttribute("value", aValue);
aForm.appendChild(hiddenField);
}
function searchImage(aEvent) {
// Executed when user click on menuitem
// aEvent.target is the <menuitem> element
var imageURL = aEvent.target.getAttribute("imageURL");
if (imageURL.indexOf("data:") == 0) {
var base64Offset = imageURL.indexOf(",");
if (base64Offset != -1) {
var inlineImage = imageURL.substring(base64Offset + 1)
.replace(/\+/g, "-")
.replace(/\//g, "_")
.replace(/\./g, "=");
var form = document.createElement("form");
form.setAttribute("method", "POST");
form.setAttribute("action", "//www.google.com/searchbyimage/upload");
form.setAttribute("enctype", "multipart/form-data");
form.setAttribute("target", "_blank");
addParamsToForm(form, "image_content", inlineImage);
addParamsToForm(form, "filename", "");
addParamsToForm(form, "image_url", "");
body.appendChild(form);
form.submit();
}
} else {
GM_openInTab("https://www.google.com/searchbyimage?image_url=" +
encodeURIComponent(imageURL));
}
}