I want to create a custom NSWindow that acts as a modal dialog. By custom I mean it has normal user controls in the window, with a "OK" and "Cancel" buttons. The dialog will contain read only information, and have a few checkboxes, secure edit fields, etc.
The MainMenu.xib file will have the normal Window visible at launch, plus include the custom NSWindow (which is NOT visible at launch).
I am trying to find example code to launch the window in modal mode (after the app initializes and launches main window), and on "OK" run a process, and on success of that process hide the dialog. Or on failure, keep the dialog up, but show an error sheet on the dialog.
Any help is appreciated, thanks.
You want to look at NSApplication’s -runModalForWindow: and/or -runModalSession: methods. Note that using modal windows is generally a bad idea and if it’s at all possible to avoid doing so, you should; that said, sometimes needs must.
As far as launching a process, waiting for it to finish and so on, you can probably do what you need with NSTask, although you don’t provide sufficient detail to be certain. You’d probably want to observe NSTaskDidTerminateNotification to tell you when the task had finished.
See
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/OperatingSystem/OperatingSystem.html
for more on NSTask and
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/WinPanel/Concepts/UsingModalWindows.html%23//apple_ref/doc/uid/20000223-CJBEADBA
for more about modal NSWindow usage.
Have a look at NSApplication's -runModalForWindow: method, and "Using Application-Modal Dialogs."
Related
I have a NSMenu coming down under a NSStatusItem. I also have a NSSpeechRecognizer. When the NSMenu is open, the speech recognizer does not function properly. It will constantly show that it's receiving sound, until I close the menu. I need it to detect sound properly even while the menu is open.
How can I make the speech recognizer detect sound even while the menu is open? Does it need to become a "first responder" and take precedence over the menu?
I tried setting [speechRecognizer setListensInForegroundOnly: NO] and it still won't work.
If you don't understand, I am more than happy to provide clarification.
Here are some similar situations, but I don't yet fully understand.
The problem is most likely that the menu is running a modal run loop as long as it is open (for the purposes of tracking the mouse, etc...) and this is blocking the NSSpeechRecognizer's ability to function normally.
You can confirm this by bringing up the menu and then pausing into the debugger. You'll likely see two run loops; the outer, normal, one and one deeper down the stack that is running the modal loop.
In general, this is kind of an odd thing to do from a user interaction perspective. The whole point of a pop-up menu is to offer the user some commands that will be done after the corresponding menu item is selected.
If you really need "click this thing and recognize voice", I'd recommend a button that, maybe, pops up a bit of UI and then interacts with the speech recognizer without using a menu?
I'm creating an app that calls a sheet, however, the interaction with the window must stay enabled while the sheet is open. Here's a mock-up:
The user must be able to use the play and record buttons. Does anyone knows a way to keep it enabled?
This seems a slightly questionable UI. But if you really want to do it, think the only solution will be to either:
Subclass NSWindow to force handling of the events
Run the event loop for that window while the sheet is visible, and dispatch desired events yourself
Sheets are intentionally designed to block interaction with the window they're attached to. If you don't want that behavior, you shouldn't be using a sheet.
I have a desktop application written in Ruby that is using GTK2. It's just a small test application to play with GTK2, but I'm having problems achieving what I want to do. Is there any way using GTK2 to get at the titlebar (apart from setting the title), specifically to either add a button to it (beside the min/max/etc, B in the below diagram) or to add an option to the menu that pops up when you click the icon on the titlebar (A in the below diagram)?
I'm thinking there might not be because GTK is meant to work with many many different window managers, but I just wondered if there was. As a side question, what event does clicking the 'cross' button fire? At the moment if the user clicks that the window disappears but the program doesn't end - I need to capture that event and quit the program.
Thanks for any help, including hitting me over the head and telling me how silly I am.
Note that this is possible in GTK 3.10 and up, by using gtk_window_set_titlebar(). It replaces the window manager's title bar with a custom one. GtkHeaderBar is a good custom title bar class to use.
You can't, however, make it look just like the window manager would, because you won't know which window manager the user is running.
No, the title bar is owned by the window manager and you will typically not have direct access to it.
When the user tries to close the window by clicking the window manager's button, the window will receive the delete event.
I have a program with many windows open. I want all windows to be visible, but only one window can be interactable, until a certain event has occured. e.g. pressing a button.
At the moment, I can still click another window, and interact with it, how do I only allow interaction with ONE window, until a certain event occurs?
Imagine this as the program:
I want only the frontmost Window to be selectable, if I try to select any of the other windows behind it, it should not work.
Does anoybody know how to do this?
Thanks!
Michael
It sounds like you want a modal window.
I want to be able to interact with main window of applications like Firefox or Word, while modal window is active.
What I mean by interact is to:
Copy text
Move window
Close window (by pressing x button)
Are these possible under Windows environment?
No, the modal windows hide the parent's messaging loop so no events get processed by them.
If you want to do it programmatically, you can. SendMessage will invoke the target window's message handler when the target isn't expecting it, so you'd better be very careful what you do.
If you want to do it as a user, operating the mouse and keyboard, then your question belongs on a different web site even though Blindy answered that question for you.