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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/. */
"use strict";
/* import-globals-from ../contentSearchUI.js */
// IndexedDB storage constants.
const DATABASE_NAME = "abouthome";
const DATABASE_VERSION = 1;
const DATABASE_STORAGE = "persistent";
var searchText;
// 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) {
// The addition of the restore session button changes our width:
if (mutation.attributeName == "session") {
fitToWidth();
}
}
});
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 });
window.gObserver.observe(document.getElementById("launcher"), { attributes: true });
fitToWidth();
setupSearch();
window.addEventListener("resize", fitToWidth);
// Ask chrome to update snippets.
var event = new CustomEvent("AboutHomeLoad", {bubbles:true});
document.dispatchEvent(event);
});
window.addEventListener("pagehide", function() {
window.gObserver.disconnect();
window.removeEventListener("resize", fitToWidth);
});
window.addEventListener("keypress", ev => {
if (ev.defaultPrevented) {
return;
}
// don't focus the search-box on keypress if something other than the
// body or document element has focus - don't want to steal input from other elements
// Make an exception for <a> and <button> elements (and input[type=button|submit])
// which don't usefully take keypresses anyway.
// (except space, which is handled below)
if (document.activeElement && document.activeElement != document.body &&
document.activeElement != document.documentElement &&
!["a", "button"].includes(document.activeElement.localName) &&
!document.activeElement.matches("input:-moz-any([type=button],[type=submit])")) {
return;
}
let modifiers = ev.ctrlKey + ev.altKey + ev.metaKey;
// ignore Ctrl/Cmd/Alt, but not Shift
// also ignore Tab, Insert, PageUp, etc., and Space
if (modifiers != 0 || ev.charCode == 0 || ev.charCode == 32)
return;
searchText.focus();
// need to send the first keypress outside the search-box manually to it
searchText.value += ev.key;
});
function onSearchSubmit(aEvent)
{
gContentSearchController.search(aEvent);
}
var gContentSearchController;
function setupSearch()
{
// Set submit button label for when CSS background are disabled (e.g.
// high contrast mode).
document.getElementById("searchSubmit").value =
document.body.getAttribute("dir") == "ltr" ? "\u25B6" : "\u25C0";
// 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.
searchText = document.getElementById("searchText");
searchText.addEventListener("blur", function searchText_onBlur() {
searchText.removeEventListener("blur", searchText_onBlur);
searchText.removeAttribute("autofocus");
});
if (!gContentSearchController) {
gContentSearchController =
new ContentSearchUIController(searchText, searchText.parentNode,
"abouthome", "homepage");
}
}
/**
* Inform the test harness that we're done loading the page.
*/
function loadCompleted()
{
}
function fitToWidth() {
if (document.documentElement.scrollWidth > window.innerWidth) {
document.body.setAttribute("narrow", "true");
} else if (document.body.hasAttribute("narrow")) {
document.body.removeAttribute("narrow");
fitToWidth();
}
}
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