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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const SEARCH_ENGINES = {
"DuckDuckGo": {
image: "data:image/png;base64," +
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"/r/gK/wKbDYTTi1eNHTzH393SvPzT0/IrF5Zp2KNCFtpF8cqBba/ndVEYqmKCcfP6Xn8xEeLRx78" +
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}
};
// This global tracks if the page has been set up before, to prevent double inits
var gInitialized = false;
var gObserver = new MutationObserver(function (mutations) {
for (let mutation of mutations) {
if (mutation.attributeName == "searchEngineURL") {
setupSearchEngine();
if (!gInitialized) {
gInitialized = true;
}
return;
}
}
});
window.addEventListener("pageshow", function () {
// Delay search engine setup, cause browser.js::BrowserOnAboutPageLoad runs
// later and may use asynchronous getters.
window.gObserver.observe(document.documentElement, { attributes: true });
fitToWidth();
window.addEventListener("resize", fitToWidth);
});
window.addEventListener("pagehide", function() {
window.gObserver.disconnect();
window.removeEventListener("resize", fitToWidth);
});
function onSearchSubmit(aEvent)
{
let searchTerms = document.getElementById("searchText").value;
let searchURL = document.documentElement.getAttribute("searchEngineURL");
if (searchURL && searchTerms.length > 0) {
// Send an event that a search was performed. This was originally
// added so Firefox Health Report could record that a search from
// about:home had occurred.
let engineName = document.documentElement.getAttribute("searchEngineName");
let event = new CustomEvent("AboutHomeSearchEvent", {detail: engineName});
document.dispatchEvent(event);
const SEARCH_TOKEN = "_searchTerms_";
let searchPostData = document.documentElement.getAttribute("searchEnginePostData");
if (searchPostData) {
// Check if a post form already exists. If so, remove it.
const POST_FORM_NAME = "searchFormPost";
let form = document.forms[POST_FORM_NAME];
if (form) {
form.parentNode.removeChild(form);
}
// Create a new post form.
form = document.body.appendChild(document.createElement("form"));
form.setAttribute("name", POST_FORM_NAME);
// Set the URL to submit the form to.
form.setAttribute("action", searchURL.replace(SEARCH_TOKEN, searchTerms));
form.setAttribute("method", "post");
// Create new <input type=hidden> elements for search param.
searchPostData = searchPostData.split("&");
for (let postVar of searchPostData) {
let [name, value] = postVar.split("=");
if (value == SEARCH_TOKEN) {
value = searchTerms;
}
let input = document.createElement("input");
input.setAttribute("type", "hidden");
input.setAttribute("name", name);
input.setAttribute("value", value);
form.appendChild(input);
}
// Submit the form.
form.submit();
} else {
searchURL = searchURL.replace(SEARCH_TOKEN, encodeURIComponent(searchTerms));
window.location.href = searchURL;
}
}
aEvent.preventDefault();
}
function setupSearchEngine()
{
// The "autofocus" attribute doesn't focus the form element
// immediately when the element is first drawn, so the
// attribute is also used for styling when the page first loads.
let searchText = document.getElementById("searchText");
searchText.addEventListener("blur", function searchText_onBlur() {
searchText.removeEventListener("blur", searchText_onBlur);
searchText.removeAttribute("autofocus");
});
let searchEngineName = document.documentElement.getAttribute("searchEngineName");
let searchEngineInfo = SEARCH_ENGINES[searchEngineName];
let logoElt = document.getElementById("searchEngineLogo");
// Add search engine logo.
if (searchEngineInfo && searchEngineInfo.image) {
logoElt.parentNode.hidden = false;
logoElt.src = searchEngineInfo.image;
logoElt.alt = searchEngineName;
searchText.placeholder = "";
}
else {
logoElt.parentNode.hidden = true;
searchText.placeholder = searchEngineName;
}
}
function fitToWidth() {
if (window.scrollMaxX) {
document.body.setAttribute("narrow", "true");
} else if (document.body.hasAttribute("narrow")) {
document.body.removeAttribute("narrow");
fitToWidth();
}
}
|
