mirror of
https://github.com/koreader/koreader
synced 2024-11-18 03:25:46 +00:00
264 lines
6.8 KiB
Lua
264 lines
6.8 KiB
Lua
require "rendertext"
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require "keys"
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require "graphics"
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require "font"
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FileSearcher = {
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-- title height
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title_H = 45,
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-- spacing between lines
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spacing = 40,
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-- foot height
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foot_H = 27,
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-- state buffer
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dirs = {},
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files = {},
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result = {},
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items = 0,
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page = 0,
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current = 1,
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oldcurrent = 1,
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}
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function FileSearcher:readDir()
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self.dirs = {self.path}
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self.files = {}
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while #self.dirs ~= 0 do
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new_dirs = {}
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-- handle each dir
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for __, d in pairs(self.dirs) do
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-- handle files in d
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for f in lfs.dir(d) do
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local file_type = string.lower(string.match(f, ".+%.([^.]+)") or "")
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if lfs.attributes(d.."/"..f, "mode") == "directory"
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and f ~= "." and f~= ".." and not string.match(f, "^%.[^.]") then
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table.insert(new_dirs, d.."/"..f)
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elseif file_type == "djvu" or file_type == "pdf"
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or file_type == "xps" or file_type == "cbz"
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or file_type == "epub" or file_type == "txt"
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or file_type == "rtf" or file_type == "htm"
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or file_type == "fb2" or file_type == "chm" then
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file_entry = {dir=d, name=f,}
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table.insert(self.files, file_entry)
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--print("file:"..d.."/"..f)
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end
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end
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end
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self.dirs = new_dirs
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end
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end
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function FileSearcher:setPath(newPath)
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self.path = newPath
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self:readDir()
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self.items = #self.files
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--@TODO check none found 19.02 2012
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if self.items == 0 then
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return nil
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end
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self.page = 1
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self.current = 1
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return true
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end
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function FileSearcher:setSearchResult(keywords)
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self.result = {}
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if keywords == " " then -- one space to show all files
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self.result = self.files
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else
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for __,f in pairs(self.files) do
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if string.find(string.lower(f.name), keywords) then
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table.insert(self.result, f)
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end
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end
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end
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self.items = #self.result
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self.page = 1
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self.current = 1
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end
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function FileSearcher:init(search_path)
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if search_path then
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self:setPath(search_path)
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else
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self:setPath("/mnt/us/documents")
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end
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end
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function FileSearcher:choose(ypos, height, keywords)
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local perpage = math.floor(height / self.spacing) - 2
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local pagedirty = true
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local markerdirty = false
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local prevItem = function ()
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if self.current == 1 then
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if self.page > 1 then
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self.current = perpage
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self.page = self.page - 1
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pagedirty = true
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end
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else
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self.current = self.current - 1
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markerdirty = true
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end
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end
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local nextItem = function ()
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if self.current == perpage then
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if self.page < (self.items / perpage) then
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self.current = 1
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self.page = self.page + 1
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pagedirty = true
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end
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else
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if self.page ~= math.floor(self.items / perpage) + 1
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or self.current + (self.page-1)*perpage < self.items then
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self.current = self.current + 1
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markerdirty = true
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end
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end
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end
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-- if given keywords, set new result according to keywords.
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-- Otherwise, display the previous search result.
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if keywords then
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self:setSearchResult(keywords)
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end
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while true do
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local cface, cfhash = Font:getFaceAndHash(22)
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local tface, tfhash = Font:getFaceAndHash(25, Font.tfont)
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local fface, ffhash = Font:getFaceAndHash(16, Font.ffont)
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if pagedirty then
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markerdirty = true
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fb.bb:paintRect(0, ypos, fb.bb:getWidth(), height, 0)
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-- draw menu title
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renderUtf8Text(fb.bb, 30, ypos + self.title_H, tface, tfhash,
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"Search Result for: "..keywords, true)
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-- draw results
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local c
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if self.items == 0 then -- nothing found
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y = ypos + self.title_H + self.spacing * 2
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renderUtf8Text(fb.bb, 20, y, cface, cfhash,
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"Sorry, no match found.", true)
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renderUtf8Text(fb.bb, 20, y + self.spacing, cface, cfhash,
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"Please try a different keyword.", true)
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markerdirty = false
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else -- found something, draw it
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for c = 1, perpage do
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local i = (self.page - 1) * perpage + c
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if i <= self.items then
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y = ypos + self.title_H + (self.spacing * c)
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renderUtf8Text(fb.bb, 50, y, cface, cfhash,
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self.result[i].name, true)
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end
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end
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end
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-- draw footer
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y = ypos + self.title_H + (self.spacing * perpage) + self.foot_H
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x = (fb.bb:getWidth() / 2) - 50
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all_page = (math.floor(self.items / perpage)+1)
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renderUtf8Text(fb.bb, x, y, fface, ffhash,
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"Page "..self.page.." of "..all_page, true)
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end
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if markerdirty then
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if not pagedirty then
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if self.oldcurrent > 0 then
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y = ypos + self.title_H + (self.spacing * self.oldcurrent) + 10
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fb.bb:paintRect(30, y, fb.bb:getWidth() - 60, 3, 0)
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fb:refresh(1, 30, y, fb.bb:getWidth() - 60, 3)
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end
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end
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-- draw new marker line
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y = ypos + self.title_H + (self.spacing * self.current) + 10
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fb.bb:paintRect(30, y, fb.bb:getWidth() - 60, 3, 15)
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if not pagedirty then
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fb:refresh(1, 30, y, fb.bb:getWidth() - 60, 3)
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end
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self.oldcurrent = self.current
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markerdirty = false
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end
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if pagedirty then
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fb:refresh(0, 0, ypos, fb.bb:getWidth(), height)
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pagedirty = false
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end
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local ev = input.waitForEvent()
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ev.code = adjustKeyEvents(ev)
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if ev.type == EV_KEY and ev.value == EVENT_VALUE_KEY_PRESS then
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if ev.code == KEY_FW_UP then
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prevItem()
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elseif ev.code == KEY_FW_DOWN then
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nextItem()
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elseif ev.code == KEY_PGFWD then
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if self.page < (self.items / perpage) then
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if self.current + self.page*perpage > self.items then
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self.current = self.items - self.page*perpage
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end
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self.page = self.page + 1
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pagedirty = true
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else
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self.current = self.items - (self.page-1)*perpage
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markerdirty = true
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end
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elseif ev.code == KEY_PGBCK then
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if self.page > 1 then
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self.page = self.page - 1
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pagedirty = true
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else
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self.current = 1
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markerdirty = true
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end
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elseif ev.code == KEY_S then
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old_keywords = keywords
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keywords = InputBox:input(height-100, 100, "Search:", old_keywords)
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if keywords then
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self:setSearchResult(keywords)
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else
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keywords = old_keywords
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end
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pagedirty = true
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elseif ev.code == KEY_F then -- invoke fontchooser menu
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fonts_menu = SelectMenu:new{
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menu_title = "Fonts Menu",
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item_array = Font.fonts,
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}
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local re = fonts_menu:choose(0, height)
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if re then
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Font.cfont = Font.fonts[re]
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Font:update()
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end
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pagedirty = true
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elseif ev.code == KEY_ENTER or ev.code == KEY_FW_PRESS then
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file_entry = self.result[perpage*(self.page-1)+self.current]
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file_full_path = file_entry.dir .. "/" .. file_entry.name
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-- rotation mode might be changed while reading, so
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-- record height_percent here
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local height_percent = height/fb.bb:getHeight()
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openFile(file_full_path)
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--reset height and item index if screen has been rotated
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local old_perpage = perpage
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height = math.floor(fb.bb:getHeight()*height_percent)
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perpage = math.floor(height / self.spacing) - 2
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self.current = (old_perpage * (self.page - 1) +
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self.current) % perpage
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self.page = math.floor(self.items / perpage) + 1
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pagedirty = true
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elseif ev.code == KEY_BACK or ev.code == KEY_HOME then
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return nil
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end
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end
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end
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end
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