[bitbake-devel] [PATCH 1/6] crumbs/persistenttooltip: a new Gtk+ widget for use in Hob

[Wang, Shane]

ACK the rest except one comment below.

--
Shane

> -----Original Message-----
> From: bitbake-devel-bounces at lists.openembedded.org
> [mailto:bitbake-devel-bounces at lists.openembedded.org] On Behalf Of
> Joshua Lock
> Sent: Friday, March 02, 2012 4:39 PM
> To: bitbake-devel at lists.openembedded.org
> Subject: [bitbake-devel] [PATCH 1/6] crumbs/persistenttooltip: a new Gtk+
> widget for use in Hob
> 
> The Hob interaction design calls for a top level widget which shows a
> persistent tooltip. This tooltip will not disappear until the user
> explicitly closes it.
> 
> This allows us to provide clickable hyperlinks, longer instructions and
> deeper information in the tooltips.
> 
> Note: by design the tooltip should dismiss when the user clicks off it,
> this implementation does include that functionality. It's a to do item.
> 
> Signed-off-by: Joshua Lock <josh at linux.intel.com>
> ---
>  lib/bb/ui/crumbs/persistenttooltip.py |  127
> +++++++++++++++++++++++++++++++++
>  1 files changed, 127 insertions(+), 0 deletions(-)
>  create mode 100644 lib/bb/ui/crumbs/persistenttooltip.py
> 
> diff --git a/lib/bb/ui/crumbs/persistenttooltip.py
> b/lib/bb/ui/crumbs/persistenttooltip.py
> new file mode 100644
> index 0000000..f3f55b1
> --- /dev/null
> +++ b/lib/bb/ui/crumbs/persistenttooltip.py
> @@ -0,0 +1,127 @@
> +#
> +# BitBake Graphical GTK User Interface
> +#
> +# Copyright (C) 2012   Intel Corporation
> +#
> +# Authored by Joshua Lock <josh at linux.intel.com>
> +#
> +# This program is free software; you can redistribute it and/or modify
> +# it under the terms of the GNU General Public License version 2 as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it will be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License along
> +# with this program; if not, write to the Free Software Foundation, Inc.,
> +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> +
> +import gobject
> +import gtk
> +
> +class PersistentTooltip(gtk.Window):
> +	"""
> +	A tooltip which persists once shown until the user dismisses it with the
> Esc
> +	key or by clicking the close button.
> +
> +	# FIXME: the PersistentTooltip should be disabled when the user clicks
> anywhere off
> +	# it. We can't do this with focus-out-event becuase modal ensures we
> have focus?
> +
> +	markup: some Pango text markup to display in the tooltip
> +	"""
> +	def __init__(self, markup):
> +		gtk.Window.__init__(self, gtk.WINDOW_POPUP)
> +
> +		# We need to ensure we're only shown once
> +		self.shown = False
> +
> +		# We don't want any WM decorations
> +		self.set_decorated(False)
> +		# We don't want to show in the taskbar or window switcher
> +		self.set_skip_pager_hint(True)
> +		self.set_skip_taskbar_hint(True)
> +		# We must be modal to ensure we grab focus when presented from
> a gtk.Dialog
> +		self.set_modal(True)
> +
> +		self.set_border_width(6)
> +		self.set_position(gtk.WIN_POS_MOUSE)
> +		self.set_opacity(0.95)
> +
> +		# Draw our label and close buttons
> +		hbox = gtk.HBox(False, 0)
> +		hbox.show()
> +		vbox = gtk.VBox(False, 0)
> +		vbox.show()
> +		vbox.pack_start(hbox, True, True, 0)
> +
> +		img = gtk.Image()
> +		img.set_from_stock(gtk.STOCK_CLOSE, gtk.ICON_SIZE_BUTTON)
> +
> +		self.button = gtk.Button()
> +		self.button.set_image(img)
> +		self.button.connect("clicked", self._dismiss_cb)
> +		self.button.set_can_default(True)
> +		self.button.grab_focus()
> +		self.button.show()
> +		hbox.pack_end(self.button, False, False, 0)
> +
> +		self.set_default(self.button)
> +
> +		self.label = gtk.Label()
> +		self.label.set_markup(markup)
> +		self.label.show()
> +		vbox.pack_end(self.label, True, True, 6)
> +
> +		self.connect("key-press-event", self._catch_esc_cb)
> +
> +		# Inherit the system theme for a tooltip
> +		style = gtk.rc_get_style_by_paths(gtk.settings_get_default(),
> +			'gtk-tooltip', 'gtk-tooltip', gobject.TYPE_NONE)
> +		self.set_style(style)
> +
> +		self.add(vbox)
> +
> +	"""
> +	Modify the displayed message once the PersistentTooltip has been
> created.
> +
> +	markup: the Pango Markup of the new message
> +	"""
> +	def set_tooltip(self, markup):
> +		self.label.set_markup(markup)
I haven't seen this is used. Can we remove it?


> +
> +
> +	"""
> +	Callback when the PersistentTooltip's close button is clicked.
> +	Hides the PersistentTooltip.
> +	"""
> +	def _dismiss_cb(self, button):
> +		self.hide()
> +		return True
> +
> +	"""
> +	Callback when the Esc key is detected. Hides the PersistentTooltip.
> +	"""
> +	def _catch_esc_cb(self, widget, event):
> +		keyname = gtk.gdk.keyval_name(event.keyval)
> +		if keyname == "Escape":
> +			self.hide()
> +		return True
> +
> +	"""
> +	Called to present the PersistentTooltip.
> +	Overrides the superclasses show() method to include state tracking.
> +	"""
> +	def show(self):
> +		if not self.shown:
> +			self.shown = True
> +			gtk.Window.show(self)
> +
> +	"""
> +	Called to hide the PersistentTooltip.
> +	Overrides the superclasses hide() method to include state tracking.
> +	"""
> +	def hide(self):
> +		self.shown = False
> +		gtk.Window.hide(self)
> --
> 1.7.7.6
> 
> 
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