tenfourfox/browser/base/content/aboutTabCrashed.js

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2017-04-19 07:56:45 +00:00
/* 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/. */
var AboutTabCrashed = {
/**
* This can be set to true once this page receives a message from the
* parent saying whether or not a crash report is available.
*/
hasReport: false,
/**
* The messages that we might receive from the parent.
*/
MESSAGES: [
"SetCrashReportAvailable",
"CrashReportSent",
"UpdateCount",
],
/**
* Items for which we will listen for click events.
*/
CLICK_TARGETS: [
"closeTab",
"restoreTab",
"restoreAll",
"sendReport",
],
/**
* Returns information about this crashed tab.
*
* @return (Object) An object with the following properties:
* title (String):
* The title of the page that crashed.
* URL (String):
* The URL of the page that crashed.
*/
get pageData() {
delete this.pageData;
let URL = document.documentURI;
let queryString = URL.replace(/^about:tabcrashed?e=tabcrashed/, "");
let titleMatch = queryString.match(/d=([^&]*)/);
let URLMatch = queryString.match(/u=([^&]*)/);
return this.pageData = {
title: titleMatch && titleMatch[1] ? decodeURIComponent(titleMatch[1]) : "",
URL: URLMatch && URLMatch[1] ? decodeURIComponent(URLMatch[1]) : "",
};
},
init() {
this.MESSAGES.forEach((msg) => addMessageListener(msg, this.receiveMessage.bind(this)));
addEventListener("DOMContentLoaded", this);
document.title = this.pageData.title;
},
receiveMessage(message) {
switch(message.name) {
case "UpdateCount": {
this.showRestoreAll(message.data.count > 1);
break;
}
case "SetCrashReportAvailable": {
this.onSetCrashReportAvailable(message);
break;
}
case "CrashReportSent": {
this.onCrashReportSent();
break;
}
}
},
handleEvent(event) {
switch (event.type) {
case "DOMContentLoaded": {
this.onDOMContentLoaded();
break;
}
case "click": {
this.onClick(event);
break;
}
}
},
onDOMContentLoaded() {
this.CLICK_TARGETS.forEach((targetID) => {
let el = document.getElementById(targetID);
el.addEventListener("click", this);
});
// Error pages are loaded as LOAD_BACKGROUND, so they don't get load events.
let event = new CustomEvent("AboutTabCrashedLoad", {bubbles:true});
document.dispatchEvent(event);
sendAsyncMessage("Load");
},
onClick(event) {
switch(event.target.id) {
case "closeTab": {
this.sendMessage("closeTab");
break;
}
case "restoreTab": {
this.sendMessage("restoreTab");
break;
}
case "restoreAll": {
this.sendMessage("restoreAll");
break;
}
case "sendReport": {
this.showCrashReportUI(event.target.checked);
break;
}
}
},
/**
* After this page tells the parent that it has loaded, the parent
* will respond with whether or not a crash report is available. This
* method handles that message.
*
* @param message
* The message from the parent, which should contain a data
* Object property with the following properties:
*
* hasReport (bool):
* Whether or not there is a crash report
*
* sendReport (bool):
* Whether or not the the user prefers to send the report
* by default
*
* includeURL (bool):
* Whether or not the user prefers to send the URL of
* the tab that crashed.
*
* emailMe (bool):
* Whether or not to send the email address of the user
* in the report.
*
* email (String):
* The email address of the user (empty if emailMe is false)
*
*/
onSetCrashReportAvailable(message) {
if (message.data.hasReport) {
this.hasReport = true;
document.documentElement.classList.add("crashDumpAvailable");
let data = message.data;
document.getElementById("sendReport").checked = data.sendReport;
document.getElementById("includeURL").checked = data.includeURL;
document.getElementById("emailMe").checked = data.emailMe;
if (data.emailMe) {
document.getElementById("email").value = data.email;
}
}
let event = new CustomEvent("AboutTabCrashedReady", {bubbles:true});
document.dispatchEvent(event);
},
/**
* Handler for when the parent reports that the crash report associated
* with this about:tabcrashed page has been sent.
*/
onCrashReportSent() {
document.documentElement.classList.remove("crashDumpAvailable");
document.documentElement.classList.add("crashDumpSubmitted");
},
/**
* Toggles the display of the crash report form.
*
* @param shouldShow (bool)
* True if the crash report form should be shown
*/
showCrashReportUI(shouldShow) {
let container = document.getElementById("crash-reporter-container");
container.hidden = !shouldShow;
},
/**
* Toggles the display of the "Restore All" button.
*
* @param shouldShow (bool)
* True if the "Restore All" button should be shown
*/
showRestoreAll(shouldShow) {
let restoreAll = document.getElementById("restoreAll");
let restoreTab = document.getElementById("restoreTab");
if (shouldShow) {
restoreAll.removeAttribute("hidden");
restoreTab.classList.remove("primary");
} else {
restoreAll.setAttribute("hidden", true);
restoreTab.classList.add("primary");
}
},
/**
* Sends a message to the parent in response to the user choosing
* one of the actions available on the page. This might also send up
* crash report information if the user has chosen to submit a crash
* report.
*
* @param messageName (String)
* The message to send to the parent
*/
sendMessage(messageName) {
let comments = "";
let email = "";
let URL = "";
let sendReport = false;
let emailMe = false;
let includeURL = false;
if (this.hasReport) {
sendReport = document.getElementById("sendReport").checked;
if (sendReport) {
comments = document.getElementById("comments").value.trim();
includeURL = document.getElementById("includeURL").checked;
if (includeURL) {
URL = this.pageData.URL.trim();
}
emailMe = document.getElementById("emailMe").checked;
if (emailMe) {
email = document.getElementById("email").value.trim();
}
}
}
sendAsyncMessage(messageName, {
sendReport,
comments,
email,
emailMe,
includeURL,
URL,
});
},
};
AboutTabCrashed.init();