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77 lines
3.0 KiB
Lua
77 lines
3.0 KiB
Lua
local EventListener = require("ui/widget/eventlistener")
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local Event = require("ui/event")
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local ReaderZooming = require("apps/reader/modules/readerzooming")
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local util = require("util")
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local ReaderKoptListener = EventListener:new{}
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function ReaderKoptListener:setZoomMode(zoom_mode)
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if self.document.configurable.text_wrap == 1 then
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-- in reflow mode only "page" zoom mode is valid so override any other zoom mode
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self.ui:handleEvent(Event:new("SetZoomMode", "page", "koptlistener"))
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else
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self.ui:handleEvent(Event:new("SetZoomMode", zoom_mode, "koptlistener"))
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end
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end
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function ReaderKoptListener:onReadSettings(config)
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-- normal zoom mode is zoom mode used in non-reflow mode.
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local normal_zoom_mode = config:readSetting("normal_zoom_mode")
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or G_reader_settings:readSetting("zoom_mode")
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or "page"
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normal_zoom_mode = util.arrayContains(ReaderZooming.available_zoom_modes, normal_zoom_mode)
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and normal_zoom_mode
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or "page"
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self.normal_zoom_mode = normal_zoom_mode
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self:setZoomMode(normal_zoom_mode)
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self.document.configurable.contrast = config:readSetting("kopt_contrast")
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or G_reader_settings:readSetting("kopt_contrast")
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or 1.0
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self.ui:handleEvent(Event:new("GammaUpdate", 1/self.document.configurable.contrast))
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-- since K2pdfopt v2.21 negative value of word spacing is also used, for config
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-- compatability we should manually change previous -1 to a more reasonable -0.2
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if self.document.configurable.word_spacing == -1 then
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self.document.configurable.word_spacing = -0.2
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end
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end
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function ReaderKoptListener:onSaveSettings()
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self.ui.doc_settings:saveSetting("normal_zoom_mode", self.normal_zoom_mode)
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end
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function ReaderKoptListener:onRestoreZoomMode()
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-- "RestoreZoomMode" event is sent when reflow mode on/off is toggled
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self:setZoomMode(self.normal_zoom_mode)
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return true
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end
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function ReaderKoptListener:onSetZoomMode(zoom_mode, orig)
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if orig == "koptlistener" then return end
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-- capture zoom mode set outside of koptlistener which should always be normal zoom mode
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self.normal_zoom_mode = zoom_mode
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self:setZoomMode(self.normal_zoom_mode)
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end
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function ReaderKoptListener:onFineTuningFontSize(delta)
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self.document.configurable.font_size = self.document.configurable.font_size + delta
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end
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function ReaderKoptListener:onZoomUpdate(zoom)
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-- an exceptional case is reflow mode
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if self.document.configurable.text_wrap == 1 then
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self.view.state.zoom = 1.0
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end
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end
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-- misc koptoption handler
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function ReaderKoptListener:onDocLangUpdate(lang)
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if lang == "chi_sim" or lang == "chi_tra" or
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lang == "jpn" or lang == "kor" then
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self.document.configurable.word_spacing = DKOPTREADER_CONFIG_WORD_SPACINGS[1]
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else
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self.document.configurable.word_spacing = DKOPTREADER_CONFIG_WORD_SPACINGS[3]
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end
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end
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return ReaderKoptListener
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