# limitations under the License.
# Views and services to use the Android native user interface
- module ui
+ module ui is
+ # `adjustPan` allows to use EditText in a ListLayout
+ android_manifest_activity """android:windowSoftInputMode="adjustPan""""
+ end
# Implementation note:
#
end
end
+ redef class Activity
+ redef fun on_back_pressed
+ do
+ var window = app.window
+ if window.enable_back_button then
+ window.on_back_button
+ return true
+ end
+
+ return false
+ end
+ end
+
# On Android, a window is implemented with the fragment `native`
redef class Window
redef var native = (new Android_app_Fragment(self)).new_global_ref
redef class CheckBox
redef type NATIVE: Android_widget_CompoundButton
redef var native do return (new Android_widget_CheckBox(app.native_activity)).new_global_ref
+ init do set_callback_on_toggle(native)
redef fun is_checked do return native.is_checked
redef fun is_checked=(value) do native.set_checked(value)
+
+ private fun on_toggle do notify_observers new ToggleEvent(self)
+
+ private fun set_callback_on_toggle(view: NATIVE)
+ import on_toggle in "Java" `{
+ final int final_sender_object = self;
+ CheckBox_incr_ref(final_sender_object);
+
+ view.setOnCheckedChangeListener(
+ new android.widget.CompoundButton.OnCheckedChangeListener() {
+ @Override
+ public void onCheckedChanged(android.widget.CompoundButton buttonView, boolean isChecked) {
+ CheckBox_on_toggle(final_sender_object);
+ }
+ });
+ `}
end
redef class TextInput
import app_base
# Platform variations
-# TODO: move on the platform once qualified names are understand in the condition
import linux::ui is conditional(linux)
-import android::ui is conditional(android) # FIXME it should be conditional to `android::platform`
+import android::ui is conditional(android)
import ios::ui is conditional(ios)
redef class App
# The current `Window` of this activity
#
- # This attribute must be set by refinements of `App`.
- var window: Window is writable
+ # This attribute is set by `push_window`.
+ var window: Window is noinit
+
+ # Make visible and push `window` on the top of `pop_window`
+ #
+ # This method must be called at least once within `App::on_create`.
+ # It can be called at any times while the app is active.
+ fun push_window(window: Window)
+ do
+ window_stack.add window
+ self.window = window
+ end
+
+ # Pop the current `window` from the stack and show the previous one
+ #
+ # Require: `window_stack.not_empty`
+ fun pop_window
+ do
+ assert window_stack.not_empty
+ window_stack.pop
+ window = window_stack.last
+ window.on_resume
+ end
+
+ # Stack of active windows
+ var window_stack = new Array[Window]
redef fun on_create do window.on_create
# A window, root of the `Control` tree
class Window
super CompositeControl
+
+ # Should the back button be shown and used to go back to a previous window?
+ fun enable_back_button: Bool do return app.window_stack.length > 1
+
+ # The back button has been pressed, usually to open the previous window
+ fun on_back_button do app.pop_window
end
# A viewable `Control`
var is_checked = false is writable
end
+# Event sent from a `VIEW`
+class ViewEvent
+ super AppEvent
+
+ # The `VIEW` that raised this event
+ var sender: VIEW
+
+ # Type of the `sender`
+ type VIEW: View
+end
+
# A `Button` press event
class ButtonPressEvent
- super AppEvent
+ super ViewEvent
+
+ redef type VIEW: Button
+end
+
+# The `CheckBox` `sender` has been toggled
+class ToggleEvent
+ super ViewEvent
- # The `Button` that raised this event
- var sender: Button
+ redef type VIEW: CheckBox
end
# A layout to visually organize `Control`s
@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
redef type NATIVE: UIView
redef var enabled = null is lazy
+
+ private fun on_ios_event do end
end
redef class CompositeControl
init
do
native.alignment = new UIStackViewAlignment.fill
- native.distribution = new UIStackViewDistribution.fill_equally
# TODO make customizable
native.spacing = 4.0
end
redef class HorizontalLayout
- redef init do native.axis = new UILayoutConstraintAxis.horizontal
+ redef init
+ do
+ native.axis = new UILayoutConstraintAxis.horizontal
+ native.distribution = new UIStackViewDistribution.fill_equally
+ end
end
redef class VerticalLayout
- redef init do native.axis = new UILayoutConstraintAxis.vertical
+ redef init
+ do
+ native.axis = new UILayoutConstraintAxis.vertical
+ native.distribution = new UIStackViewDistribution.equal_spacing
+ end
end
redef class Label
# `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
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
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
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:)
bar.title = "app.nit" # TODO offer a portable API to name windows
bar.show_close_button = true
- # TODO add back button
+ bar.add back_button.native
return bar
end
return stack
end
+ # Button on the header bar to go back
+ var back_button = new BackButton is lazy
+
# On GNU/Linux, we go through all the callbacks once,
# there is no complex life-cycle.
redef fun run
app.on_start
app.on_resume
- native_window.show_all
gtk_main
app.on_pause
# improved with GTK 3.18 and interpolate_size.
native_window.resizable = false
+ native_window.show_all
+
super
+
+ if window.enable_back_button then
+ back_button.native.show
+ else back_button.native.hide
end
end
init do native.signal_connect("clicked", self, null)
end
+ # Button to go back between windows
+ class BackButton
+ super Button
+
+ # TODO i18n
+ redef fun text=(value) do super(value or else "Back")
+
+ redef fun signal(sender, data)
+ do
+ super
+
+ app.window.on_back_button
+ end
+ end
+
redef class Label
redef type NATIVE: GtkLabel
redef var native = new GtkLabel("")
redef type NATIVE: GtkCheckButton
redef var native = new GtkCheckButton
+ redef fun signal(sender, data) do notify_observers new ToggleEvent(self)
+ init do native.signal_connect("toggled", self, null)
+
redef fun text do return native.text
redef fun text=(value) do native.text = (value or else "").to_s
nitlanguage / nit.git / commitdiff