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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/** @type {string}
* @const
*/
var FEEDBACK_LANDING_PAGE =
'https://support.google.com/chrome/go/feedback_confirmation';
/** @type {number}
* @const
*/
var MAX_ATTACH_FILE_SIZE = 3 * 1024 * 1024;
/**
* @type {number}
* @const
*/
var FEEDBACK_MIN_WIDTH = 500;
/**
* @type {number}
* @const
*/
var FEEDBACK_MIN_HEIGHT = 585;
/** @type {number}
* @const
*/
var CONTENT_MARGIN_HEIGHT = 40;
/** @type {number}
* @const
*/
var MAX_SCREENSHOT_WIDTH = 100;
/** @type {string}
* @const
*/
var SYSINFO_WINDOW_ID = 'sysinfo_window';
/** @type {string}
* @const
*/
var STATS_WINDOW_ID = 'stats_window';
var attachedFileBlob = null;
var lastReader = null;
var feedbackInfo = null;
var systemInfo = null;
/**
* Reads the selected file when the user selects a file.
* @param {Event} fileSelectedEvent The onChanged event for the file input box.
*/
function onFileSelected(fileSelectedEvent) {
$('attach-error').hidden = true;
var file = fileSelectedEvent.target.files[0];
if (!file) {
// User canceled file selection.
attachedFileBlob = null;
return;
}
if (file.size > MAX_ATTACH_FILE_SIZE) {
$('attach-error').hidden = false;
// Clear our selected file.
$('attach-file').value = '';
attachedFileBlob = null;
return;
}
attachedFileBlob = file.slice();
}
/**
* Clears the file that was attached to the report with the initial request.
* Instead we will now show the attach file button in case the user wants to
* attach another file.
*/
function clearAttachedFile() {
$('custom-file-container').hidden = true;
attachedFileBlob = null;
feedbackInfo.attachedFile = null;
$('attach-file').hidden = false;
}
/**
* Creates a closure that creates or shows a window with the given url.
* @param {string} windowId A string with the ID of the window we are opening.
* @param {string} url The destination URL of the new window.
* @return {function()} A function to be called to open the window.
*/
function windowOpener(windowId, url) {
return function(e) {
e.preventDefault();
chrome.app.window.create(url, {id: windowId});
};
}
/**
* Opens a new window with chrome://slow_trace, downloading performance data.
*/
function openSlowTraceWindow() {
chrome.app.window.create(
'chrome://slow_trace/tracing.zip#' + feedbackInfo.traceId);
}
/**
* Sends the report; after the report is sent, we need to be redirected to
* the landing page, but we shouldn't be able to navigate back, hence
* we open the landing page in a new tab and sendReport closes this tab.
* @return {boolean} True if the report was sent.
*/
function sendReport() {
if ($('description-text').value.length == 0) {
var description = $('description-text');
description.placeholder = loadTimeData.getString('no-description');
description.focus();
return false;
}
// Prevent double clicking from sending additional reports.
$('send-report-button').disabled = true;
console.log('Feedback: Sending report');
if (!feedbackInfo.attachedFile && attachedFileBlob) {
feedbackInfo.attachedFile = { name: $('attach-file').value,
data: attachedFileBlob };
}
feedbackInfo.description = $('description-text').value;
feedbackInfo.pageUrl = $('page-url-text').value;
feedbackInfo.email = $('user-email-text').value;
var useSystemInfo = false;
var useHistograms = false;
if ($('sys-info-checkbox') != null &&
$('sys-info-checkbox').checked &&
systemInfo != null) {
// Send histograms along with system info.
useSystemInfo = useHistograms = true;
}
<if expr="chromeos">
if ($('performance-info-checkbox') == null ||
!($('performance-info-checkbox').checked)) {
feedbackInfo.traceId = null;
}
</if>
if (useSystemInfo) {
if (feedbackInfo.systemInformation != null) {
// Concatenate sysinfo if we had any initial system information
// sent with the feedback request event.
feedbackInfo.systemInformation =
feedbackInfo.systemInformation.concat(systemInfo);
} else {
feedbackInfo.systemInformation = systemInfo;
}
}
feedbackInfo.sendHistograms = useHistograms;
// If the user doesn't want to send the screenshot.
if (!$('screenshot-checkbox').checked)
feedbackInfo.screenshot = null;
chrome.feedbackPrivate.sendFeedback(feedbackInfo, function(result) {
window.open(FEEDBACK_LANDING_PAGE, '_blank');
window.close();
});
return true;
}
/**
* Click listener for the cancel button.
* @param {Event} e The click event being handled.
*/
function cancel(e) {
e.preventDefault();
window.close();
}
/**
* Converts a blob data URL to a blob object.
* @param {string} url The data URL to convert.
* @return {Blob} Blob object containing the data.
*/
function dataUrlToBlob(url) {
var mimeString = url.split(',')[0].split(':')[1].split(';')[0];
var data = atob(url.split(',')[1]);
var dataArray = [];
for (var i = 0; i < data.length; ++i)
dataArray.push(data.charCodeAt(i));
return new Blob([new Uint8Array(dataArray)], {type: mimeString});
}
<if expr="chromeos">
/**
* Update the page when performance feedback state is changed.
*/
function performanceFeedbackChanged() {
if ($('performance-info-checkbox').checked) {
$('attach-file').disabled = true;
$('attach-file').checked = false;
$('screenshot-checkbox').disabled = true;
$('screenshot-checkbox').checked = false;
} else {
$('attach-file').disabled = false;
$('screenshot-checkbox').disabled = false;
}
}
</if>
function resizeAppWindow() {
// We pick the width from the titlebar, which has no margins.
var width = $('title-bar').scrollWidth;
if (width < FEEDBACK_MIN_WIDTH)
width = FEEDBACK_MIN_WIDTH;
// We get the height by adding the titlebar height and the content height +
// margins. We can't get the margins for the content-pane here by using
// style.margin - the variable seems to not exist.
var height = $('title-bar').scrollHeight +
$('content-pane').scrollHeight + CONTENT_MARGIN_HEIGHT;
if (height < FEEDBACK_MIN_HEIGHT)
height = FEEDBACK_MIN_HEIGHT;
chrome.app.window.current().resizeTo(width, height);
}
/**
* Initializes our page.
* Flow:
* .) DOMContent Loaded -> . Request feedbackInfo object
* . Setup page event handlers
* .) Feedback Object Received -> . take screenshot
* . request email
* . request System info
* . request i18n strings
* .) Screenshot taken -> . Show Feedback window.
*/
function initialize() {
// Add listener to receive the feedback info object.
chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
if (request.sentFromEventPage) {
feedbackInfo = request.data;
$('description-text').textContent = feedbackInfo.description;
if (feedbackInfo.pageUrl)
$('page-url-text').value = feedbackInfo.pageUrl;
takeScreenshot(function(screenshotCanvas) {
// We've taken our screenshot, show the feedback page without any
// further delay.
window.webkitRequestAnimationFrame(function() {
resizeAppWindow();
});
chrome.app.window.current().show();
var screenshotDataUrl = screenshotCanvas.toDataURL('image/png');
$('screenshot-image').src = screenshotDataUrl;
$('screenshot-image').classList.toggle('wide-screen',
$('screenshot-image').width > MAX_SCREENSHOT_WIDTH);
feedbackInfo.screenshot = dataUrlToBlob(screenshotDataUrl);
});
chrome.feedbackPrivate.getUserEmail(function(email) {
$('user-email-text').value = email;
});
chrome.feedbackPrivate.getSystemInformation(function(sysInfo) {
systemInfo = sysInfo;
});
// An extension called us with an attached file.
if (feedbackInfo.attachedFile) {
$('attached-filename-text').textContent =
feedbackInfo.attachedFile.name;
attachedFileBlob = feedbackInfo.attachedFile.data;
$('custom-file-container').hidden = false;
$('attach-file').hidden = true;
}
<if expr="chromeos">
if (feedbackInfo.traceId && ($('performance-info-area'))) {
$('performance-info-area').hidden = false;
$('performance-info-checkbox').checked = true;
performanceFeedbackChanged();
$('performance-info-link').onclick = openSlowTraceWindow;
}
</if>
chrome.feedbackPrivate.getStrings(function(strings) {
loadTimeData.data = strings;
i18nTemplate.process(document, loadTimeData);
if ($('sys-info-url')) {
// Opens a new window showing the current system info.
$('sys-info-url').onclick =
windowOpener(SYSINFO_WINDOW_ID, 'chrome://system');
}
if ($('histograms-url')) {
// Opens a new window showing the histogram metrics.
$('histograms-url').onclick =
windowOpener(STATS_WINDOW_ID, 'chrome://histograms');
}
// Make sure our focus starts on the description field.
$('description-text').focus();
});
}
});
window.addEventListener('DOMContentLoaded', function() {
// Ready to receive the feedback object.
chrome.runtime.sendMessage({ready: true});
// Setup our event handlers.
$('attach-file').addEventListener('change', onFileSelected);
$('send-report-button').onclick = sendReport;
$('cancel-button').onclick = cancel;
$('remove-attached-file').onclick = clearAttachedFile;
<if expr="chromeos">
$('performance-info-checkbox').addEventListener(
'change', performanceFeedbackChanged);
</if>
});
}
initialize();
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