I am employing Riverpod for state management via StateNotifierProvider. My switch button just won't enable upon clicking and thus no state changes to effect theme mode switching. I have spent a ton of hours researching similar issues but none like mine as I am not using setState(). I expect the state of the button to change on clicking on dragging but the thumb of the switch just returns to its initial off position. Please help me with what I am doing wrong. Here are snapshots of my main.dart, home_screen.dart, and the theme controller notifier as I am unable to copy and paste my code correctly as advised with 4 spaces.
You need to update the state (not the _isDarkvariable) this way:
toggleTheme(bool value) {
state = value;
_safePrefs;
}
The image is not complete, so I can't see the use of _isDark variable (Probably nothing). But You shoul be fine now, at least updating the state.
That's my problem, when I'm trying to type a space in my release flutter web build and it doesn't do anything and only works if its typed with AltGr pressed. Does anyone have a clue about this or is this a bug with the build process?
I've tried putting the TextField inside a form and outside but no difference is made.
This was fixed switching to beta channel, luckily everything should be good on master
I have an issue with setting value of AutomationElement by using method ValuePattern.SetValue().
Everything works just fine until some dialog appears. When the dialog appears the code execution got stuck. No exception is thrown. After the dialog is confirmed, the code exection continues. Bellow is a sample of the code:
BasePattern basePattern = null;
ValuePattern valuePattern = null;
AutomationElement elementA = Window.GetElement(SearchCriteria.ByText(propertyName));
object patternObjectA = null;
elementA.TryGetCurrentPattern(ValuePattern.Pattern, out patternObjectA);
basePattern = (BasePattern)patternObjectA;
valuePattern = (ValuePattern)patternObjectA;
valuePattern.SetValue(optionToSet);
// Window.GetElement() is a method from TestStack.White framework
// The code execution got stuck on the last line until the dialog is confirmed
Is there any other way to set AutomationElement value?
Is somehow possible to avoid of getting stuck by dialog?
I'll by grateful for any help.
Thanks advance.
It could be that this dialog is not supporting UI Automation correctly or that you simply target the wrong element.
To verify that you may use Inspect.exe from Microsoft or similiar tools.
If it works, check if you really target the correct component with your code again.
If it does not work and:
if you are able to change the application
you can change the so called AutomationPeer of the UI component - here is a link for more infos
Or simply use another UI component that supports UI Automation correctly.
if you are not able to change the application, and also do not need to run in background, parallel, etc.. you might just focus the component (call setFocus() onto the AutomationElement, or expand it (via IsExpandCollapsePatternAvailable or simulated MouseClick onto the components coordinates)) and then use the SendKeys.SendWait("test") method.
EDIT: There is one more thing you should have a look at, and I wonder why I didn't mentioned it in the first place: Register to UI Automation Events
For example you could register a callback for the Structure change event type, and check if the dialog you talk about appeared.
If so --> click the confirmed button of the dialog.
Probably you will have to synchronize your execution, so that every further action in the UI Automation script waits until the registered callback got executed and the confirmed button got clicked.
What is the proper way to use the SDK to make a dialog (which is not anchored to the add-on bar, etc. but shows centered on screen)? It doesn't seem like there is any API for this important capability. I do see windows/utils has open but I have two problems with that:
The dialog opening seems to require "chrome" privs to get it to be centered on the screen (and I'd be expectant of add-on reviewers complaining of chrome privs, and even if not, I'd like to try to stick to the SDK way).
While I can get the DOM window reference of the new window/utils' open() dialog, I'm not sure how to attach a content script so I can respond to user interaction in a way that prompts (and can respond to) privileged behavior ala postMessage or port.emit (without again, directly working with chrome privs).
Ok, this answer should have been pretty obvious for anyone with a little experience with the SDK. I realized I can just use a panel. In my defense, the name "panel" is not as clear as "dialog" in conjuring up this idea, and I am so used to using panels with widgets, that it hadn't occurred to me that I could use it independently!
Edit
Unfortunately, as per Bug 595040, these dialogs are not persistent, meaning if the panel loses focus, the "dialog" is gone... So panel looks like it is not a suitable candidate after all... :(
Edit 2
I've since moved on and have gotten things working mostly to my satisfaction with sdk/window/utils and openDialog on whose returned window I add a load listener and then call tabs.activeTab.on('ready', and then set tabs.activeTab.url to my add-on local HTML file so the ready event will get a tab to which I can attach a worker. There is still the problem with chrome privs I suppose, but at least the main communications are using SDK processes.
Update to Edit 2:
Code sample provided by request:
var data = require('sdk/self').data,
tabs = require('sdk/tabs');
var win = require('sdk/window/utils').openDialog({
// No "url" supplied here in this case as we add it below (in order to have a ready listener in place before load which can give us access to the tab worker)
// For more, see https://developer.mozilla.org/en-US/docs/Web/API/window.open#Position_and_size_features
features: Object.keys({
chrome: true, // Needed for centerscreen per docs
centerscreen: true, // Doesn't seem to be working for some reason (even though it does work when calling via XPCOM)
resizable: true,
scrollbars: true
}).join() + ',width=850,height=650',
name: "My window name"
// parent:
// args:
});
win.addEventListener('load', function () {
tabs.activeTab.on('ready', function (tab) {
var worker = tab.attach({
contentScriptFile: ....
// ...
});
// Use worker.port.on, worker.port.emit, etc...
});
tabs.activeTab.url = data.url('myHTMLFile.html');
});
if the panel loses focus, the "dialog" is gone...
It doesn't get destroyed, just hides, right? If so, depending on why it's getting hidden, you can just call show() on it again.
You'd want to make sure it's not being hidden for a good reason before calling show again. If there's a specific situation in which it's losing focus where you don't want it to, create a listener for that situation, then call if (!panel.isShown) panel.show();
For example, if it's losing focus because a user clicks outside the box, then that's probably the expected behaviour and nothing should be done. If it's losing focus when the browser/tab loses focus, just register a tab.on('activate', aboveFunction)
Simply adding ",screenX=0,screenY=0" (or any values, the zeroes seem to be meaningless) to the features screen seems to fix centerscreen.
I'd like to dynamically change the text of a Command depending on some state, so normally I went to Google and LWUIT blogs said that using refreshTheme() on MenuBar should do the trick.
So I used the following code, but it sadly didn't work
if (isPlaying) {
playButton.setCommandName("Pause");
}else{
playButton.setCommandName("Play");
}
this.getMenuBar().refreshTheme();
Is there something wrong with my code? Or did I misunderstand something?
It won't refresh. The text of the button is set when the command is placed so you can't do that.
You will need to use removeCommand(cmd) followed by addCommand(newCmd).
Furthermore, refreshTheme() has absolutely nothing to do with anything.