I am developing an add-on in Firefox. As a part of the add-on, I am opening a tab with a new page, and once the page is completely loaded, I would like access the web console log information (css/javascript errors.....
How do I access all the console log information once the page is loaded ?
First you have to get the innerID of the window that you want to obtain messages from.
With the sdk you can get this with var innerID = require("sdk/window/utils").getInnerId(require("sdk/view/core").viewFor(require("sdk/windows").activeWindow))
or more cleanly:
var utils = require("sdk/window/utils");
var viewFor = require("sdk/view/core").viewFor;
var windows = require("sdk/windows");
var innerID = utils.getInnerId(viewFor(windows.activeWindow));
Then you want to observe console notifications for that window:
var system = require("sdk/system/events");
system.on('console-api-log-event', onMessage);
function onMessage(subject) {
subject = subject.wrappedJSObject;
if (subject.innerID != innerID) {
return null; //ignore this console log, because it is for a window/thing that I don't care about
}
if (subject.level != "log") {
return null; // ignore anything but console.log, like: console.info, console.error, console.debug, etc.
}
var message = subject.arguments[0]; // first string argument to console.log()
// do something with the console.log("") message
}
Related
I have this code for downloading a file which runs correct:
var base64EncodedBytes = System.Convert.FromBase64String(item.FileDataAsBase64String);
var downloadDirectory = Path.Combine(Android.OS.Environment.ExternalStorageDirectory.AbsolutePath, Android.OS.Environment.DirectoryDownloads);
var filePath = Path.Combine(downloadDirectory, "test.pdf");
var streamWriter = File.Create(filePath);
streamWriter.Close();
File.WriteAllBytes(filePath, base64EncodedBytes);
I'm able to locate the file I downloaded in the Downloads folder, but also I want to show a notification in the notification bar that the file has been downloaded and with a click in the notifications the user to be able to open the downloaded file.
Is that possible?
You can use Plugin.LocalNotification to show the notification once the file is downloaded.
try
{
var base64EncodedBytes = System.Convert.FromBase64String(item.FileDataAsBase64String);
var downloadDirectory = Path.Combine(Android.OS.Environment.ExternalStorageDirectory.AbsolutePath, Android.OS.Environment.DirectoryDownloads);
var filePath = Path.Combine(downloadDirectory, "test.pdf");
var streamWriter = File.Create(filePath);
streamWriter.Close();
File.WriteAllBytes(filePath, base64EncodedBytes);
DisplayNotification("test.pdf downloaded successfully", filePath);
}
catch(System.Exception e)
{
System.Console.WriteLine(e.ToString());
DisplayNotification("Download Failed",string.Empty);
}
public void DisplayNotification(string message, string filePath)
{
var notification = new NotificationRequest
{
NotificationId = 100,
Title = "Your App name",
Description = message,
ReturningData = filePath, // Returning data when tapped on notification.
NotifyTime = DateTime.Now.AddSeconds(30) // Used for Scheduling local notification, if not specified notification will show immediately.
};
NotificationCenter.Current.Show(notification);
}
Note: Make sure to initialize the plugin setup in both the project iOS and Android.
On the App.xaml.cs I have the following code
private async void OnCommandsRequested(SettingsPane settingsPane, SettingsPaneCommandsRequestedEventArgs e)
{
var loader = ResourceLoader.GetForCurrentView();
var generalCommand = new SettingsCommand("General Settings", "General Settings", handler =>
{
var generalSettings = new GeneralSettingsFlyout();
generalSettings.Show();
});
e.Request.ApplicationCommands.Add(generalCommand);
object data;
IAuthService _authService = new AuthService();
if (Global.UserId == 0)
data = await _authService.GetSettingValueBySettingName(DatabaseType.GeneralDb, ApplicationConstants.GeneralDbSettingNames.ShowSupportInfo);
else
data = await _authService.GetSettingValueBySettingName(DatabaseType.UserDb, ApplicationConstants.UserDbSettingNames.ShowSupportInfo);
if (data != null && data.ToString().Equals("1"))
{
var supportCommand = new SettingsCommand("Support", "Support", handler =>
{
var supportPane = new SupportFlyout();
supportPane.Show();
});
e.Request.ApplicationCommands.Add(supportCommand);
}
var aboutCommand = new SettingsCommand("About", loader.GetString("Settings_OptionLabels_About"), handler =>
{
var aboutPane = new About();
aboutPane.Show();
});
e.Request.ApplicationCommands.Add(aboutCommand);
}
This code adds the setting "General Settings" but neither "Support" or "About" commands. Can anyone advice what's wrong with this code?
Instead of querying the commands from your service when they are requested you'll need to query them ahead of time and then add the already known commands.
You cannot use await in OnCommandsRequested.
A method returns when it gets to the first await, so only commands added to the request before the await will be used.
Since the SettingsPaneCommandsRequestedEventArgs doesn't provide a deferral there is no way to tell the requester to wait for internal async calls to complete.
Note also that SettingsPane is deprecated and not recommended for new app development for Windows 10.
I have an interface that calls a script for spreadsheet creation using data taken from other spreadsheet. I want the interface to update its labels at runtime in order to give visual feedback to the user and let him know the script is running and it's not stuck. When I try to update the label I put in the interface, it doesn't update the first time, but updates correctly after myFunction() reaches its end. Which means I can see the message "Creation Completed", but the message "Creating file..." is never shown. Also, the button buttonCompile is never disabled so it seems that the instructions before myFunction() are not executed at all. How can I get the labels updated and the button disabled before myFunction() starts executing? (I already double-checked variable references)
function doGet() {
var app = UiApp.createApplication();
app.add(app.loadComponent("File creation"));
var buttonCreate = app.getElementById('createBtn');
var handlerCrea = app.createServerHandler('createClickHandler');
buttonCreate.addClickHandler(handlerCreate);
return app;
}
function createClickHandler(e) {
var app = UiApp.getActiveApplication();
var label = app.getElementById('createLbl');
label.setText("Creating file...");
var buttonCompile = app.getElementById('compileBtn');
buttonCompile.setEnabled(false);
myFunction();
label.setText("Creation completed.");
buttonCompile.setEnabled(true);
app.close();
return app;
}
The cause of this behavior is that the GUI is updated only after leaving a handler. A workaround is to use two handlers. The 1st one sets the label text to Creating file... and disables the button, the 2nd one executes the myFunction function, changes the text to Creation completed, and eanbles the button. Here is an example. It disables/enables the button and the worker handler simply waits 5 seconds.
function doGet(e) {
var app = UiApp.createApplication();
var container = app.createHorizontalPanel().setId('container');
var btnPerformance = app.createButton("Performance Demo").setId('btnPerformance');
var handlerPerformance = app.createServerHandler('onBtnPerformanceClick');
var handlerWait = app.createServerHandler('onWait');
btnPerformance.addClickHandler(handlerPerformance);
btnPerformance.addClickHandler(handlerWait);
container.add(btnPerformance);
app.add(container);
return app;
}
function enableControls(enable) {
var lstControls = [ 'btnPerformance' ];
var app = UiApp.getActiveApplication();
for (var i = 0; i < lstControls.length; i++) {
var ctl = app.getElementById(lstControls[i]);
ctl.setEnabled(enable);
}
}
function onWait(e) {
enableControls(false);
return UiApp.getActiveApplication();
}
function onBtnPerformanceClick(e) {
Utilities.sleep(5000);
enableControls(true);
return UiApp.getActiveApplication();
}
I am learning how to program Firefox extensions. I have created a new menu and when the menu item is clicked, I want a new tab to be opened, in the foreground, containing a local file contained within the contents directory.
For example:
MENU -> Item1
When Item1 is selected, I want a new tab to open in the foreground containing what is located in /myextension/content/content.html.
Where can I find out how to do this?
For clarity, I can get the local file to open in a new tab, I just do not know how to get to open in a new focused tab.
I use the following function to open a tab, make sure it hasn't already been opened and switch focus to it:
function OpenAndReuseOneTabPerURL(url)
{
var wm = Components.classes["#mozilla.org/appshell/window-mediator;1"].getService(Components.interfaces.nsIWindowMediator);
var browserEnumerator = wm.getEnumerator("navigator:browser");
// Check each browser instance for our URL
var found = false;
while (!found && browserEnumerator.hasMoreElements())
{
var browserWin = browserEnumerator.getNext();
var tabbrowser = browserWin.gBrowser;
// Check each tab of this browser instance
var numTabs = tabbrowser.browsers.length;
for (var index = 0; index < numTabs; index++)
{
var currentBrowser = tabbrowser.getBrowserAtIndex(index);
if (url == currentBrowser.currentURI.spec)
{
// The URL is already opened. Select this tab.
tabbrowser.selectedTab = tabbrowser.tabContainer.childNodes[index];
// Focus *this* browser-window
browserWin.focus();
found = true;
break;
}
}
}
// Our URL isn't open. Open it now.
if (!found)
{
var recentWindow = wm.getMostRecentWindow("navigator:browser");
if (recentWindow) {
// Use an existing browser window
recentWindow.delayedOpenTab(url, null, null, null, null);
} else {
// No browser windows are open, so open a new one.
window.open(url);
}
}
}
Use it like:
OpenAndReuseOneTabPerURL("http://yoururl.com");
I'm building a Dashboard Widget and I'm attempting to store preferences that persist across "sessions" (i.e., a user closing the widget and opening it again).
I've tried:
function setEmail(event)
{
var preferenceKey = "email";
var preferenceValue = $F("email");
widget.setPreferenceForKey(preferenceValue, preferenceKey);
}
function getEmail() {
var preferenceForKey = "email";
preferenceForKey = widget.preferenceForKey(preferenceForKey);
return preferenceForKey;
}
This works fine for the current session, but if the widget is closed and opened again, the data is lost.
Thanks!
This seems to do the trick:
// Values you provide
var preferenceKey = "key"; // replace with the key for a preference
var preferenceValue = "value"; // replace with a preference to save
// Preference code
widget.setPreferenceForKey(preferenceValue, preferenceKey);