I have a web app layout like below screenshot.
It has several menus, and in each menu we have several tabs on the left sidebar:
if some configuration in one tab is wrong, I want to get notified even i was opening another tab.
Currently for each tabs, i have 1 service map to it, e.g. tab1 -> tab1Service, tab2 -> tab2Service.
Each service will have an init method to initial the data for each tab(tabCtrl), and it will only be called once i click that tab.
So here is the question:
If i want to got notified which tab has an error when i first go into this menu, i have to call that tabService init in the parent controller also, otherwise the error icon won't be displayed.
If i am going to do like this, once i refresh the page on a sub tab, the init method will be call twice consecutively, which isn't very good.
Does anyone know is there a better solution for this? I think it should be a common case in web development, hope someone could help me on this.
Related
I am using Ionic for just a simple tab app that displays some info I load from an external source (in this case parse). It works pretty well, although sometimes I am noticing that I click a view and the view will be blank. When I tap the tab again it populates the list with the view from the server. I am assuming this is the app taking a momment to load the data.. it seems to take less than a second, but dosen't then update.
Has anyone seen this? I was thinking I could probably just build some sort of loading thing that shows? Is there an easy solution to basically refresh the view once the content has been loaded?
Use a Boolean controller variable in your controller, when everything loaded and all promises resolved set it to true
In your view wrap everything in ... Ng-if='controller.loading===true'
You could also create another div that says ... Ng-if loading===false
And inside it put a loading icon
Remember to initialise controller variable to false initially
I'm building a dashboard/control panel app that is basically made up of two tabs (bootstrap) at the root level, called "dispatch" and "admin". Each tab has a good bit of its own multi-tiered navigation and functionality, and they don't need to directly interact with each other. The problem I'm running into is how to deep-link to sub-views within one of the tabs without losing the "state" of the inactive tab. To clarify, I can achieve this just fine if I don't worry about updating the URL, but when I try to add deep-linking, that's when I get stuck.
An example of the desired behavior:
When you click on the "Admin" tab, the route becomes "/admin"
Click on a sub-nav item, route becomes "/admin/foo"
Select 3rd-tier sub-level item, route becomes "admin/foo/thing1"
Click on the "dispatch" tab, route becomes "/dispatch"
Click back on the "admin" tab, route goes back to "admin/foo/thing1"
So basically, if you're at the "admin/foo/thing1" route in the middle of filling out a text field, then switch to another tab, then switch back, the text field should still be there just as you left it.
Like I said, the problem isn't switching from tab to tab, since by default the tabs just show and hide things on the page without reloading any views dynamically. I just don't know how to deep-link to a given tab's "bookmarked" position when you switch to it. The way I keep thinking of it is that clicking on a tab should only update the first segment of the URL(/admin or /dispatch), and then some sort of $watch function would update the remaining segments based on the last "location" within that tab. Would something like that work?
Also, I'm using ui-router to handle all my routing and states, so I have to factor that into how I'm going to handle the desired behavior.
Help?
I worked on both those topics (deep state reactivation and parallel states) and integration into ui-router. Grab my github fork of ui-router and build using grunt. Then, mark your two tab states as parallel: true and deepStateRedirect: true.
Git repo: https://github.com/christopherthielen/ui-router
Example plunker: http://plnkr.co/edit/YhQyPV?p=preview
Discussion: https://github.com/angular-ui/ui-router/issues/894
I would just save the current state in a variable, then either dynamically change the link of the tab to whatever the last subview was.
For example, if the user is on /admin/billing, the Admin tab would link to admin/billing. When they leave that tab, the /admin tab remains the same. If you are using ui-router, you can do this with ui-srefs. You could also just manually check the variable when the state changes, and route the user there from the controller.
We're developing a simple app with the sencha framework
The app consist of a few tabs( a tabPanle with bottom tabBar) and the switching between tabs works perfectly when we use it as it is on the sencha docs, alas when no live data is present.
When we add stores within the single tabs, functionalities breaks, tabs stop switching and every time one clicks a tab to change the view, a flickering appears, the default tab is loaded again(from the chrome console we can see that all the remote data request of the loginView get reissued) and the only tab that remain visible to the user is tab[0].
app.js --> http://pastebin.com/S9qaNfij
mainView.js ---> http://pastebin.com/uiG2E0AW
controller.js ---> http://pastebin.com/8MTfxC85
This was created with senchaArchitect, that btw is awful and quite useless if not to work visually with the components.
here is a little movie of the thing happaning.
http://youtu.be/OVOSOWhMZeE
What are we doing wrong?
I think it's your button listener, it seems that it might be being triggered on even the tab panel button taps. I would try giving your button a unique ID and then create a ref and an action to login based on that ID.
I am trying to build an app using Extjs 4.1. In general: it is a viewport with a tree panel on the west and a center panel that it is actually a tab-holder panel. When a user clicks on a tree node a tab is populating the center view. I had set an attribute in the tree panel that after selecting a node it gets deselected (deselectAll). The reason for this is that the user can open many tabs from different places (e.g. within each tab). But, when I set the above attribute it is producing an error (the “data” is undefined). The data that is undefined is the data related to the tree node. So, the question concerning selection model:
How can I address this problem (a solution may be to select the fist node, but I don’t want it)?
As for the history utility, I need to implement browser back button. Especially I want to disable browser’s refresh button. If user opens let’s say 15 tabs and accidentally click on browser refresh or “F5” he/she will lose everything. I had tried many things but with no luck. I am unable to understand “Ext history util”. So,
Is there any good example out there?
Could anybody guide me on how to do it?
Notice that the application is built respecting the new “MVC” architecture.
Stopping the refresh event is pretty easy - providing that your page has the focus. E.g.:
Ext.getDoc().on('keypress', function(event) {
if (event.getCharCode() == event.F5) {
event.stopEvent();
console.log('you stopped the refresh event');
}
});
If your page doesn't have the focus then there is nothing that can be done -- but most of the time your page loses the focus when a different browser tab is opened so F5 would be refreshing that one instead anyway.
I'm still trying to wrap my wits around the first part of your question, but I thought I would share that.
EDIT
Instead of trying to stop the default browser behavior (something which you can only do on a very limited basis), you should look into state management. ExtJS supports it on many components. Here is the ExtJS example.
Also here is the example of controlling browser history.
I have a really strange issue relating to how I handle navigation in an application, and that application now being rejected from AppHub (after being successfully approved a number of times on the same code base... grr)
currently I am capturing the first navigation of the application and routing it an "add item" page in the App.cs using the example found here
the user then adds an "item"
the user is taken to the "main" page again, but stay there are there is now 1 "item" to show in a list
the user then can view a "detail" page of this item where they can select to delete the current item. when they do that I redirect them to the "main" page again.
this navigation then fires the same thing that happened in step 1
and they are routed to an "add" page
the problem with the above process, is that if the user hits "back" on the routed page in step 5 they don't go anywhere as they are routed back to the current page (because there are no items on the page previous and this fires the app.cs routing event to take them to the add page). if I did allow for them to go back, the actual first page they would be able to go back to is 3 nav steps back, when they first added the item - as they are on the "add item" page already, this would be pointless.
The apphub store testers say that in this instance, the application should close. I really don't know how the f&*k I am meant to make this happen, as there is no "go back until close" action I can call...
thoughts?
When the user decides to "delete" the current item, you shouldn't navigate forward to the main page, leaving the deleted item in the navigation stack. You should navigate back to the main page. That way the navigation stack will be empty, and if they navigate back again, the app will close.
(The same is true at step 3, of course - when the item is added, navigate back to the main page. You don't want the "add" page as part of the navigation stack; that action has been completed.)
The single best advice I read on WP7 navigation was "if you don't have to, don't use it." I've almost stopped using it all together and just use "MainPage.xaml" for loading/unloading user controls that do this kind of stuff. I completely control the Back button as needed. It has saved me so much headache. The important thing to realize is that the Navigation pages are really just mimicking a website and it's pages - many apps do not fit that paradigm (as they are apps, not websites). So, if you don't have to use Navigation, don't use it.
So in your case, if you just managed everything on MainPage.xaml, you would use a number of If/Then statements in OnBackKeyPress and if one meets your criteria, do an e.Cancel = true; and show/load/etc. your thing. If not, let the app navigate out of itself - i.e. exit.
For tombstoning, just let the OnNavigatedTo in MainPage.xaml handle loading the right user control received from tombstoned information retrieved from Application_Activated.