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# Copyright (c) 2015-2016 Ruby-GNOME2 Project Team
# This program is licenced under the same licence as Ruby-GNOME2.
#
=begin
= Popovers
A bubble-like window containing contextual information or options.
GtkPopovers can be attached to any widget, and will be displayed
within the same window, but on top of all its content.
=end
class PopoverDemo
def initialize(main_window)
@window = Gtk::Window.new(:toplevel)
@window.screen = main_window.screen
box = Gtk::Box.new(:vertical, 24)
box.border_width = 24
@window.add(box)
widget = add_toggle_button_with_popover
box.add(widget)
widget = add_custom_entry_with_complex_popover
box.add(widget)
widget = add_calendar_with_popover
box.add(widget)
end
def run
if !@window.visible?
@window.show_all
else
@window.destroy
end
@window
end
def create_popover(parent, child, pos)
popover = Gtk::Popover.new(parent)
popover.position = pos
popover.add(child)
popover.border_width = 6
child.show
popover
end
def create_complex_popover(parent, pos)
builder = Gtk::Builder.new(:resource => "/popover/popover.ui")
window = builder["window"]
content = window.child
content.parent.remove(content)
window.destroy
popover = create_popover(parent, content, pos)
popover.set_size_request(200, -1)
popover.vexpand = true
popover.margin_start = 10
popover.margin_end = 10
popover.margin_bottom = 10
popover
end
def add_toggle_button_with_popover
widget = Gtk::ToggleButton.new(:label => "Button")
label = Gtk::Label.new("This popover does not grab input")
toggle_popover = create_popover(widget, label, :top)
toggle_popover.modal = false
widget.signal_connect "toggled" do |button|
toggle_popover.visible = button.active?
end
widget
end
def add_custom_entry_with_complex_popover
widget = CustomEntry.new
entry_popover = create_complex_popover(widget, :top)
widget.set_icon_from_icon_name(:primary, "edit-find")
widget.set_icon_from_icon_name(:secondary, "edit-clear")
widget.signal_connect "icon-press" do |entry, icon_pos, _event|
rect = entry.get_icon_area(icon_pos)
entry_popover.pointing_to = rect
entry_popover.show
entry.popover_icon_pos = icon_pos
end
widget.signal_connect "size-allocate" do |entry, _allocation|
if entry_popover.visible?
popover_pos = entry.popover_icon_pos
rect = entry.get_icon_area(popover_pos)
entry_popover.pointing_to = rect
end
end
widget
end
def add_calendar_with_popover
widget = Gtk::Calendar.new
widget.signal_connect "day-selected" do |calendar|
event = Gtk.current_event
if event.type == :button_press
x, y = event.window.coords_to_parent(event.x, event.y)
allocation = calendar.allocation
rect = Gdk::Rectangle.new(x - allocation.x, y - allocation.y, 1, 1)
cal_popover = create_popover(calendar, CustomEntry.new, :bottom)
cal_popover.pointing_to = rect
cal_popover.show
end
end
widget
end
end
class CustomEntry < Gtk::Entry
attr_accessor :popover_icon_pos
def initialize
super
end
end
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