I have a grid layout in which I want to show a pop up when the user tries to replace a component which is already present in the grid.
For e.g. the grid layout has a Label (wrapped in a DragAndDropWrapper) which is present at 0,0 position.
If the user tries to add a new component at the same position(0,0 position), then it should show a pop up (confirmation dialog box) asking the user to confirm if the user wishes the replace the existing component or not.
Now, my issue is that the current thread does not wait for the execution to complete. It keeps going ahead after showing the pop up box. Thus, there is a lot of problem in updating the UI after the input is taken from the dialog box for the user's answer.
Can someone show how to do this? Note that I need to do this in a DragAndDropHandler's drop method call as I need to show the dialog box only when the user tries to drop a new component on an existing component of the grid layout.
A working example would be a great help.
Thanks in advance.
So I followed the comment by André Schild and it did work for me.
I just remember which component and location was used for replacing the component. Then, I ask for a confirmation and if the user says Yes, then I just go ahead and replace it.
Thanks again Andre
Related
I need to destroy a component on navigating away from it but I cannot figure out how to do it. I've tried clearHistory: true in RouterExtensions, but it doesn't work. The flow of our program is this:
Dashboard > link to Component1
Component1 > Save takes the user back to Dashboard.
If the user clicks the link to go back to Component1, I get an ExpressionChangedAfterItHasBeenCheckedError because the memory of the component is still resident.
It is bit tricky to remove a page from the navigation history in nativescrupt angular. I would suggest you to create a modal page for Component1, save it and when user close the modal, take it back to Dashboard.
or you need to handle the change detection manually, for further reading, you can refer here.
I solved my immediate problem by redesigning the page to use calculated values based on the data rather than ui state settings from the ngrx store which, as I thought about it, is a more stable solution.
I left the question up because I was curious if there was a way to remove pages from the navigation history.
In the simple Dialog below:
// choice of layout has no impact:
Container cont=new Container(new TextModeLayout(3, 1));
//Container cont=new Container(new BoxLayout(BoxLayout.Y_AXIS));
TextComponent firstName=new TextComponent().label("First Name").text(person.firstname);
TextComponent lastName=new TextComponent().label("Last Name").text(person.lastname);
TextComponent cost=new TextComponent().label("Cost per Session").text(person.getCostString());
cost.getField().setConstraint(TextArea.DECIMAL);
// NOTE HERE
// doesn't work: // works:
cont.add(firstName); // cont.add(firstName.getField());
cont.add(lastName); // cont.add(lastName.getField());
cont.add(cost); // cont.add(cost.getField());
Dialog.show("Edit Client", cont, new Command(CANCEL), new Command(OK));
Nothing appears in the Dialog unless I add the TextField instead of the TextComponent to my container at the NOTE HERE comment. This means I lose the nice appearance of the labelled input fields (yes I know I could label them myself, but they wouldn't look as good on different devices). My choice of layout manager at the top does not affect this issue (I've tried several). I can't find evidence online to conclude there's an incompatibility here, adding TextComponents and other InputComponents works fine on a Form, just not in a Dialog.
I'm having the same problem in another Dialog that uses PickerComponents. The PickerComponent doesn't appear unless I add the Picker itself, and then the Picker spawned from a Dialog looks all wrong. I'm hoping the simpler code question above will answer this quandary as well.
It's worth noting I've made no theme changes and this problem is noted in both the Android and Apple skins as well as on an actual Android phone. Thanks in advance for any help!
You shouldn't do input in a Dialog as it creates a very problematic user experience. If you would like things to look like they are in a dialog you can use styles and layouts to make a Form feel like a Dialog but you shouldn't use a Dialog.
The reason this fails is a bit complicated but here are the high level problems with using a dialog:
Dialogs don't grow implicitly - This is a huge problem for text input as the component needs space to resize with input and even more so for the animated TextComponent which needs to shift things around. The size of a Dialog is determined when it's shown and that's a big problem
This becomes a bigger problem on Android where the screen resizes during input and distorts the dialog completely. It's one of those things you'll only see on the device because it's really hard to simulate the virtual keyboard.
Scrollability is hard in a Dialog and text components need a scrollable parent so you can scroll between the various edit components
Picker component uses a form of Dialog to show input and this can collide with your dialog
Dialogs are hard to get right for suspend/resume behavior. Suspend/resume happens when the app is minimized or sent to the background. E.g. say you have an incoming call while typing in the dialog. When you go back to the app we want to show the last form. If we show the dialog it will block and we won't know which parent form to show anyway. So when an app is suspended dialogs are just disposed in the default code generated in the main class. It makes more sense.
I searched on Google and StackOverflow, and I was not able to find a solution to my problem (to my greatest surprise).
I'm looking to display the popup, exactly like when the user click on the icon of my extension, but via javascript.
The idea behind it is simple : On a specific page, I inject a button and add an event listener on it ("click"). When the user click on that button, I'd like to display the tooltip, simple as that :)
... but I can not find anything related to it. Any idea ?
Thank you in advance.
Opening the popup is impossible without user interaction. For good reason too, remember that no one likes popups that open themselves. What you can do is inject your popup onto the site the user is at, through a content script.
https://developer.chrome.com/extensions/content_scripts
As per your description,
On a specific page, I inject a button and add an event listener on it ("click"). When the user click on that button, I'd like to display the tooltip, simple as that :)
I think what you need is just chrome.pageAction, it's similar to browserAction, while represents actions that can be taken on the current page, but aren't applicable to all pages.
I have a field where a customer number is required. When the user leaves the field in the onblur event I need to run some code, in this case check if the given number is already in use. The problem is the codes needs some time to complete. For this short period the user should not be able to make any input. Also I'd like to display a gif.
There is a genius snippet on XSnippets called "Standby Dialog" (https://openntf.org/XSnippets.nsf/snippet.xsp?id=standby-dialog-custom-control)
If you implement this on your page (preferably as custom control) you will get an overlay everytime a partial refresh happens. If you init a partial refresh when the user blurs the field you will get what you want.
Actually, I want to store some data in background page and the popup page just show that part of data say Data as a div element created in background page document.createElement("div"). Here, the background page will register some listeners to the tab update and change the Data elements accordingly. What the popup will do is to get that Data and appendit use the document.appendChild(Data).
(The purpose I intend is this will cause the popup changes immediately while the tab updage is triggered.)
However, the elements are shown as usual, what I am facing very headache is I have registered the onclick for the div object in backgroundpage as onclick="chrome.extension.getBackgroundPage().somefunc()". However, the first time, all the click will triger the right behavior but after the popup loses foucs and get focus again, all the click won't work.
I try to put something like change the onclick="somefunc()" and leave the func within the script of popup page. And there I want to log whether it is called by console.log("clicked"). Here, something unbelievable happens, the function is succefully trigerred BUT the console is null here, I cannot even call chrome.extension.getBackgroundPage() as well.
Here are a list of questions, maybe very hard to express for me...
1. Whether I can reuse the DOM element from the background page to the popup page directly by appendChild(chrome.extension.getBackgroundPage().getElementById()?
2.Will the onclick event registered in the background page still work in the popup pages?
3. What's the problem with the problem I am encountering? I have tried many ways to find out the reason but all in vain at last...
Best Regards,
If you need any more information, please let me know.
(PS: I am wonderning if it is called something like the event propogation, however, I am not an expert in this two pages communicating...)