Merge: app.nit: navigate between windows with the back button

[nit.git] / lib / ios / ui / ui.nit

diff --git a/lib/ios/ui/ui.nit b/lib/ios/ui/ui.nit
index 875f739..acf3018 100644 (file)
--- a/lib/ios/ui/ui.nit
+++ b/lib/ios/ui/ui.nit
@@ -25,16 +25,16 @@ in "ObjC" `{
 @interface NitCallbackReference: NSObject
 
        // Nit object target of the callbacks from UI events
-       @property (nonatomic) Button nit_button;
+       @property (nonatomic) View nit_view;
 
        // Actual callback method
-       -(void) nitOnEvent: (UIButton*) sender;
+       -(void) nitOnEvent: (UIView*) sender;
 @end
 
 @implementation NitCallbackReference
 
-       -(void) nitOnEvent: (UIButton*) sender {
-               Button_on_click(self.nit_button);
+       -(void) nitOnEvent: (UIView*) sender {
+               View_on_ios_event(self.nit_view);
        }
 @end
 
@@ -136,6 +136,8 @@ redef class View
        redef type NATIVE: UIView
 
        redef var enabled = null is lazy
+
+       private fun on_ios_event do end
 end
 
 redef class CompositeControl
@@ -260,7 +262,10 @@ redef class CheckBox
        # `UISwitch` acting as the real check box
        var ui_switch: UISwitch is noautoinit
 
-       init do
+       redef fun on_ios_event do notify_observers new ToggleEvent(self)
+
+       init
+       do
                # Tweak the layout so it is centered
                layout.native.distribution = new UIStackViewDistribution.fill_proportionally
                layout.native.alignment = new UIStackViewAlignment.center
@@ -269,6 +274,8 @@ redef class CheckBox
                var s = new UISwitch
                native.add_arranged_subview s
                ui_switch = s
+
+               ui_switch.set_callback self
        end
 
        redef fun text=(text) do lbl.text = text
@@ -278,6 +285,23 @@ redef class CheckBox
        redef fun is_checked=(value) do ui_switch.set_on_animated(value, true)
 end
 
+redef class UISwitch
+       # Register callbacks on this switch to be relayed to `sender`
+       private fun set_callback(sender: View)
+       import View.on_ios_event in "ObjC" `{
+
+               NitCallbackReference *ncr = [[NitCallbackReference alloc] init];
+               ncr.nit_view = sender;
+
+               // Pin the objects in both Objective-C and Nit GC
+               View_incr_ref(sender);
+               ncr = (__bridge NitCallbackReference*)CFBridgingRetain(ncr);
+
+               [self addTarget:ncr action:@selector(nitOnEvent:)
+                       forControlEvents:UIControlEventValueChanged];
+       `}
+end
+
 redef class TextInput
 
        redef type NATIVE: UITextField
@@ -300,25 +324,25 @@ redef class Button
 
        init do native.set_callback self
 
+       redef fun on_ios_event do notify_observers new ButtonPressEvent(self)
+
        redef fun text=(text) do if text != null then native.title = text.to_nsstring
        redef fun text do return native.current_title.to_s
 
-       private fun on_click do notify_observers new ButtonPressEvent(self)
-
        redef fun enabled=(enabled) do native.enabled = enabled or else true
        redef fun enabled do return native.enabled
 end
 
 redef class UIButton
        # Register callbacks on this button to be relayed to `sender`
-       private fun set_callback(sender: Button)
-       import Button.on_click in "ObjC" `{
+       private fun set_callback(sender: View)
+       import View.on_ios_event in "ObjC" `{
 
                NitCallbackReference *ncr = [[NitCallbackReference alloc] init];
-               ncr.nit_button = sender;
+               ncr.nit_view = sender;
 
                // Pin the objects in both Objective-C and Nit GC
-               Button_incr_ref(sender);
+               View_incr_ref(sender);
                ncr = (__bridge NitCallbackReference*)CFBridgingRetain(ncr);
 
                [self addTarget:ncr action:@selector(nitOnEvent:)