From 50723f2186ba5a3e33511d174cb0c6f1bfa74505 Mon Sep 17 00:00:00 2001
From: yumoqing <yumoqing@gmail.com>
Date: Fri, 13 Nov 2020 18:00:26 +0800
Subject: [PATCH] bugfix

---
 kivyblocks/boxViewer.py | 27 +++++++++++++++++++-
 kivyblocks/ready.py     | 56 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 82 insertions(+), 1 deletion(-)

diff --git a/kivyblocks/boxViewer.py b/kivyblocks/boxViewer.py
index 62fc6a8..916694d 100644
--- a/kivyblocks/boxViewer.py
+++ b/kivyblocks/boxViewer.py
@@ -25,8 +25,9 @@ from .responsivelayout import VResponsiveLayout
 from .toolbar import Toolbar
 from .paging import Paging, RelatedLoader
 from .utils import CSize
+from .ready import WidgetReady
 
-class BoxViewer(BoxLayout):
+class BoxViewer(WidgetReady, BoxLayout):
 	def __init__(self, **options):
 		self.toolbar = None
 		self.parenturl = None
@@ -41,6 +42,22 @@ class BoxViewer(BoxLayout):
 				'boxheight']
 		kwargs = {k:v for k,v in options.items() if k not in remind }
 		BoxLayout.__init__(self, orientation='vertical', **kwargs)
+		WidgetReady.__init__(self)
+		self.used_keys = [
+			{
+				"keyname":"enter",
+				"modifiers":[]
+			},
+			{
+				"keyname":"up",
+				"modifiers":[]
+			},
+			{
+				"keyname":"down",
+				"modifiers":[]
+			},
+		]
+		self.use_keyboard(self.used_keys)
 		self.selected_data = None
 		self.options = options
 		self.box_width = CSize(options['boxwidth'])
@@ -113,6 +130,14 @@ class BoxViewer(BoxLayout):
 			self.dataloader.loadPage(1)
 			self.initflag = True
 
+	def on_key_down(self,keyinfo):
+		if keyinfo['keyname'] == 'enter':
+			self.selected_box.on_press()
+		if keyinfo['keyname'] == 'down':
+			print('down key entried')
+		if keyinfo['keyname'] == 'up':
+			print('up key entried')
+
 	def showObject(self, holders, rec,index=0):
 		def doit(self,holders,idx,o,w):
 			w.bind(on_press=self.select_record)
diff --git a/kivyblocks/ready.py b/kivyblocks/ready.py
index d2d8b57..9c8c9e9 100644
--- a/kivyblocks/ready.py
+++ b/kivyblocks/ready.py
@@ -15,10 +15,19 @@ class WidgetReady(EventDispatcher):
 
 	def __init__(self):
 		self.register_event_type('on_ready')
+		self.register_event_type('on_key_down')
 		self._ready = False
 
 	def on_ready(self):
 		pass
+	def on_key_down(self,keyinfo):
+		"""
+		keyinfo is a dict with:
+			keyname
+			modifiers
+		keys
+		"""
+		print(kinfo)
 
 	def ready(self):
 		if self._ready:
@@ -30,6 +39,53 @@ class WidgetReady(EventDispatcher):
 		self._ready = False
 		self.ready()
 
+	def use_keyboard(self, keyinfos=[]):
+		"""
+		keyinfos is a list of aceepted keys keyinfo 
+		if the on_key_down's key is one of the keyinfos, 
+		fire a event, and return True, 
+		else just return False
+		"""
+		self.my_kb = Window.request_keyboard(self.unuse_keyboard, self, "text")
+		self.my_kb.bind(on_key_down=self._on_keyboard_down)
+		if self.my_kb.widget:
+			self.my_kb.set_mode_free()
+		self.keyinfos = keyinfos
+
+	def unuse_keyboard(self):
+		print('My keyboard have been closed!')
+		self.my_kb.unbind(on_key_down=self._on_keyboard_down)
+		self.my_kb = None
+
+	def _on_keyboard_down(self, keyboard, keycode, text, modifiers):
+		print('The key', keycode, 'have been pressed')
+		print(' - text is %r' % text)
+		print(' - modifiers are %r' % modifiers)
+
+		def listqual(l1,l2):
+			a = [i for i in l1 if i not in l2]
+			b = [i for i in l2 if i not in l1]
+			if len(a) == 0 and len(b) == 0:
+				return True
+			return False
+		# Keycode is composed of an integer + a string
+		# If we hit escape, release the keyboard
+		if keycode[1] == 'escape':
+			keyboard.release()
+
+		for ki in self.keyinfos:
+			if ki['keyname'] == keycode[1] and listequal(ki['modifiers'],modifiers):
+				keyinfo = {
+					"keyname":keycode[1],
+					"modifiers":modifiers
+				}
+				self.dispatch('on_key_down',keyinfo)
+				return True
+
+		# Return True to accept the key. Otherwise, it will be used by
+		# the system.
+		return False
+
 	def on_fullscreen(self, instance, value):
 		window = self.get_parent_window()
 		if not window: