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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";
const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Messaging.jsm");
Cu.import("resource://gre/modules/UITelemetry.jsm");
this.EXPORTED_SYMBOLS = ["NetErrorHelper"];
const KEY_CODE_ENTER = 13;
/* Handlers is a list of objects that will be notified when an error page is shown
* or when an event occurs on the page that they are registered to handle. Registration
* is done by just adding yourself to the dictionary.
*
* handlers.myKey = {
* onPageShown: function(browser) { },
* handleEvent: function(event) { },
* }
*
* The key that you register yourself with should match the ID of the element you want to
* watch for click events on.
*/
var handlers = {};
function NetErrorHelper(browser) {
browser.addEventListener("click", this.handleClick, true);
let listener = () => {
browser.removeEventListener("click", this.handleClick, true);
browser.removeEventListener("pagehide", listener, true);
};
browser.addEventListener("pagehide", listener, true);
// Handlers may want to customize the page
for (let id in handlers) {
if (handlers[id].onPageShown) {
handlers[id].onPageShown(browser);
}
}
}
NetErrorHelper.attachToBrowser = function(browser) {
return new NetErrorHelper(browser);
}
NetErrorHelper.prototype = {
handleClick: function(event) {
let node = event.target;
while(node) {
if (node.id in handlers && handlers[node.id].handleClick) {
handlers[node.id].handleClick(event);
return;
}
node = node.parentNode;
}
},
}
handlers.searchbutton = {
onPageShown: function(browser) {
let search = browser.contentDocument.querySelector("#searchbox");
if (!search) {
return;
}
let browserWin = Services.wm.getMostRecentWindow("navigator:browser");
let tab = browserWin.BrowserApp.getTabForBrowser(browser);
// If there is no stored userRequested, just hide the searchbox
if (!tab.userRequested) {
search.style.display = "none";
} else {
let text = browser.contentDocument.querySelector("#searchtext");
text.value = tab.userRequested;
text.addEventListener("keypress", (event) => {
if (event.keyCode === KEY_CODE_ENTER) {
this.doSearch(event.target.value);
}
});
}
},
handleClick: function(event) {
let value = event.target.previousElementSibling.value;
this.doSearch(value);
},
doSearch: function(value) {
UITelemetry.addEvent("neterror.1", "button", null, "search");
let engine = Services.search.defaultEngine;
let uri = engine.getSubmission(value).uri;
let browserWin = Services.wm.getMostRecentWindow("navigator:browser");
// Reset the user search to whatever the new search term was
browserWin.BrowserApp.loadURI(uri.spec, undefined, { isSearch: true, userRequested: value });
}
};
handlers.wifi = {
// This registers itself with the nsIObserverService as a weak ref,
// so we have to implement GetWeakReference as well.
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
Ci.nsISupportsWeakReference]),
GetWeakReference: function() {
return Cu.getWeakReference(this);
},
onPageShown: function(browser) {
// If we have a connection, don't bother showing the wifi toggle.
let network = Cc["@mozilla.org/network/network-link-service;1"].getService(Ci.nsINetworkLinkService);
if (network.isLinkUp && network.linkStatusKnown) {
let nodes = browser.contentDocument.querySelectorAll("#wifi");
for (let i = 0; i < nodes.length; i++) {
nodes[i].style.display = "none";
}
}
},
handleClick: function(event) {
let node = event.target;
while(node && node.id !== "wifi") {
node = node.parentNode;
}
if (!node) {
return;
}
UITelemetry.addEvent("neterror.1", "button", null, "wifitoggle");
// Show indeterminate progress while we wait for the network.
node.disabled = true;
node.classList.add("inProgress");
this.node = Cu.getWeakReference(node);
Services.obs.addObserver(this, "network:link-status-changed", true);
Messaging.sendRequest({
type: "Wifi:Enable"
});
},
observe: function(subject, topic, data) {
let node = this.node.get();
if (!node) {
return;
}
// Remove the progress bar
node.disabled = false;
node.classList.remove("inProgress");
let network = Cc["@mozilla.org/network/network-link-service;1"].getService(Ci.nsINetworkLinkService);
if (network.isLinkUp && network.linkStatusKnown) {
// If everything worked, reload the page
UITelemetry.addEvent("neterror.1", "button", null, "wifitoggle.reload");
Services.obs.removeObserver(this, "network:link-status-changed");
// Even at this point, Android sometimes lies about the real state of the network and this reload request fails.
// Add a 500ms delay before refreshing the page.
node.ownerDocument.defaultView.setTimeout(function() {
node.ownerDocument.location.reload(false);
}, 500);
}
}
}
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