add multi-dictionary support

frontend/ui/widget/dict.lua

@@ -1,16 +1,27 @@
 require "ui/widget/container"
+require "ui/widget/buttontable"
 
 --[[
 Display quick lookup word definition
 ]]
 DictQuickLookup = InputContainer:new{
-	dict = nil,
+	results = nil,
+	lookupword = nil,
+	dictionary = nil,
 	definition = nil,
-	id = nil,
-	lang = nil,
-	
+	dict_index = 1,
 	title_face = Font:getFace("tfont", 20),
+	word_face = Font:getFace("tfont", 18),
 	content_face = Font:getFace("cfont", 18),
+	width = Screen:getWidth() - scaleByDPI(100),
+	
+	title_padding = scaleByDPI(5),
+	title_margin = scaleByDPI(2),
+	word_padding = scaleByDPI(5),
+	word_margin = scaleByDPI(2),
+	definition_padding = scaleByDPI(5),
+	definition_margin = scaleByDPI(2),
+	button_padding = scaleByDPI(14),
 }
 
 function DictQuickLookup:init()
@@ -20,7 +31,7 @@ function DictQuickLookup:init()
 				seqtext = "any key", doc = _("close dialog") }
 		}
 	else
-		self.ges_events.TapClose = {
+		self.ges_events.TapCloseDict = {
 			GestureRange:new{
 				ges = "tap",
 				range = Geom:new{
@@ -31,29 +42,172 @@ function DictQuickLookup:init()
 			}
 		}
 	end
-	-- we construct the actual content here because self.text is only available now
-	self[1] = CenterContainer:new{
-		dimen = Screen:getSize(),
-		FrameContainer:new{
-			margin = 2,
-			background = 0,
-			VerticalGroup:new{
-				align = "center",
-				-- title bar
-				TextBoxWidget:new{
-					text = self.dict,
-					face = self.title_face,
-					width = Screen:getWidth() - 100,
+	self:changeToDefaultDict()
+end
+
+function DictQuickLookup:update()
+	-- dictionary title
+	self.dict_title = FrameContainer:new{
+		padding = self.title_padding,
+		margin = self.title_margin,
+		bordersize = 0,
+		TextWidget:new{
+			text = self.dictionary,
+			face = self.title_face,
+			width = self.width,
+		}
+	}
+	-- lookup word
+	local lookup_word = FrameContainer:new{
+		padding = self.word_padding,
+		margin = self.word_margin,
+		bordersize = 0,
+		TextBoxWidget:new{
+			text = self.lookupword,
+			face = self.word_face,
+			width = self.width,
+		},
+	}
+	-- word definition
+	local definition = FrameContainer:new{
+		padding = self.definition_padding,
+		margin = self.definition_margin,
+		bordersize = 0,
+		TextBoxWidget:new{
+			text = self.definition,
+			face = self.content_face,
+			width = self.width,
+		},
+	}	
+	local button_table = ButtonTable:new{
+		width = math.max(self.width, definition:getSize().w),
+		buttons = {
+			{	
+				{
+					text = _("<<"),
+					enabled = self:isPrevDictAvaiable(),
+					callback = function()
+						self:changeToPrevDict()
+					end,
 				},
-				VerticalSpan:new{ width = 20 },
-				TextBoxWidget:new{
-					text = self.definition,
-					face = self.content_face,
-					width = Screen:getWidth() - 100,
-				}
+				{
+					text = _(">>"),
+					enabled = self:isNextDictAvaiable(),
+					callback = function()
+						self:changeToNextDict()
+					end,
+				},
+			},
+			{
+				{
+					text = _("Highlight"),
+					enabled = false,
+					callback = function()
+						self.ui:handleEvent(Event:new("Highlight"))
+					end,
+				},
+				{
+					text = _("Add Note"),
+					enabled = false,
+					callback = function()
+						self.ui:handleEvent(Event:new("AddNote"))
+					end,
+				},
+			},
+		},
+		zero_sep = true,
+	}
+	local title_bar = LineWidget:new{
+		--background = 8,
+		dimen = Geom:new{
+			w = button_table:getSize().w + self.button_padding,
+			h = scaleByDPI(2),
+		}
+	}
+	
+	self.dict_frame = FrameContainer:new{
+		radius = scaleByDPI(8),
+		bordersize = scaleByDPI(3),
+		padding = 0,
+		margin = 0,
+		background = 0,
+		VerticalGroup:new{
+			align = "left",
+			self.dict_title,
+			title_bar,
+			-- word
+			lookup_word,
+			-- definition
+			definition,
+			-- buttons
+			CenterContainer:new{
+				dimen = Geom:new{
+					w = title_bar:getSize().w,
+					h = button_table:getSize().h,
+				},
+				button_table,
 			}
 		}
 	}
+	
+	self[1] = CenterContainer:new{
+		dimen = Screen:getSize(),
+		self.dict_frame,
+	}
+end
+
+function DictQuickLookup:isPrevDictAvaiable()
+	return self.dict_index > 1
+end
+
+function DictQuickLookup:isNextDictAvaiable()
+	return self.dict_index < #self.results
+end
+
+function DictQuickLookup:changeToPrevDict()
+	self:changeDictionary(self.dict_index - 1)
+end
+
+function DictQuickLookup:changeToNextDict()
+	self:changeDictionary(self.dict_index + 1)
+end
+
+function DictQuickLookup:changeDictionary(index)
+	self.dict_index = index
+	self.dictionary = self.results[index].dict
+	self.lookupword = self.results[index].word
+	self.definition = self.results[index].definition
+	self:update()
+	UIManager.repaint_all = true
+end
+
+function DictQuickLookup:changeToDefaultDict()		
+	if self.dictionary then
+		-- dictionaries that have definition of the first word(accurate word)
+		-- excluding Fuzzy queries.
+		local n_accurate_dicts = nil
+		local default_word = self.results[1].word
+		for i=1, #self.results do
+			if self.results[i].word == default_word then
+				n_accurate_dicts = i
+			else
+				break
+			end
+		end
+		-- change to dictionary specified by self.dictionary
+		for i=1, n_accurate_dicts do
+			if self.results[i].dict == self.dictionary then
+				self:changeDictionary(i)
+				break
+			end
+			-- cannot find definition in default dictionary
+			if i == n_accurate_dicts then
+				self:changeDictionary(1)
+			end
+		end
+	else
+		self:changeDictionary(1)
+	end
 end
 
 function DictQuickLookup:onAnyKeyPressed()
@@ -62,8 +216,14 @@ function DictQuickLookup:onAnyKeyPressed()
 	return true
 end
 
-function DictQuickLookup:onTapClose()
-	UIManager:close(self)
-	self.ui:handleEvent(Event:new("Tap"))
+function DictQuickLookup:onTapCloseDict(arg, ges_ev)
+	if ges_ev.pos:notIntersectWith(self.dict_frame.dimen) then
+		UIManager:close(self)
+		self.ui:handleEvent(Event:new("Tap"))
+		return true
+	elseif not ges_ev.pos:notIntersectWith(self.dict_title.dimen) then
+		self.ui:handleEvent(Event:new("UpdateDefaultDict", self.dictionary))
+		return true
+	end
 	return true
 end