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[UX] Add double finger up and down swipe gesture (#5183)

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* Add double finger up and down swipe gesture
* Cleaning ReaderFrontLight
This commit is contained in:
Robert
2019-08-06 19:54:09 +02:00
committed by Frans de Jonge
parent dac2458427
commit aec112fa6b
2 changed files with 43 additions and 72 deletions
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97
frontend/apps/reader/modules/readerfrontlight.lua
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@@ -1,84 +1,39 @@
local InputContainer = require("ui/widget/container/inputcontainer")
local Notification = require("ui/widget/notification")
local GestureRange = require("ui/gesturerange")
local UIManager = require("ui/uimanager")
local Screen = require("device").screen
local Device = require("device")
local logger = require("logger")
local T = require("ffi/util").template
local _ = require("gettext")
local ReaderFrontLight = InputContainer:new{
steps = {0,1,1,1,1,2,2,2,3,4,5,6,7,8,9,10},
steps_fl = { 0.1, 0.1, 0.2, 0.4, 0.7, 1.1, 1.6, 2.2, 2.9, 3.7, 4.6, 5.6, 6.7, 7.9, 9.2, 10.6, },
gestureScale = Screen:getWidth() * FRONTLIGHT_SENSITIVITY_DECREASE,
}
function ReaderFrontLight:init()
if Device:isTouchDevice() then
self.ges_events = {
Adjust = {
GestureRange:new{
ges = "two_finger_pan",
rate = Device.model ~= 'Kobo_phoenix' and 3.0 or nil,
}
},
PanRelease= {
GestureRange:new{
ges = "two_finger_pan_release",
}
},
Swipe = {
GestureRange:new{
ges = "two_finger_swipe",
}
},
}
end
end
function ReaderFrontLight:onAdjust(arg, ges)
if not Device:hasFrontlight() then return true end
local powerd = Device:getPowerDevice()
logger.dbg("frontlight intensity", powerd:frontlightIntensity())
local step = math.ceil(#self.steps * ges.distance / self.gestureScale)
logger.dbg("step = ", step)
local delta_int = self.steps[step] or self.steps[#self.steps]
logger.dbg("delta_int = ", delta_int)
local new_intensity
if ges.direction == "north" then
new_intensity = powerd:frontlightIntensity() + delta_int
elseif ges.direction == "south" then
new_intensity = powerd:frontlightIntensity() - delta_int
end
if new_intensity == nil then return true end
-- when new_intensity <=0, toggle light off
if new_intensity <= 0 then
powerd:turnOffFrontlight()
else
powerd:setIntensity(new_intensity)
end
if self.view.footer_visible and self.view.footer.settings.frontlight then
self.view.footer:updateFooter()
end
return true
end
-- direction +1 - increase frontlight
-- direction -1 - decrease frontlight
function ReaderFrontLight:onChangeFlIntensity(ges, direction)
local powerd = Device:getPowerDevice()
local gestureScale
local scale_multiplier
if ges.ges == "two_finger_swipe" then
-- for backward compatibility
scale_multiplier = FRONTLIGHT_SENSITIVITY_DECREASE * 0.8
elseif ges.ges == "swipe" then
scale_multiplier = 0.8
else
scale_multiplier = 1
end
if ges.direction == "south" or ges.direction == "north" then
gestureScale = Screen:getHeight() * 0.8
gestureScale = Screen:getHeight() * scale_multiplier
elseif ges.direction == "west" or ges.direction == "east" then
gestureScale = Screen:getWidth() * 0.8
gestureScale = Screen:getWidth() * scale_multiplier
else
local width = Screen:getWidth()
local height = Screen:getHeight()
-- diagonal
gestureScale = math.sqrt(width * width + height * height) * 0.8
gestureScale = math.sqrt(width * width + height * height) * scale_multiplier
end
if powerd.fl_intensity == nil then return false end
@@ -129,15 +84,25 @@ function ReaderFrontLight:onChangeFlWarmth(ges, direction)
end
local gestureScale
local scale_multiplier
if ges.ges == "two_finger_swipe" then
-- for backward compatibility
scale_multiplier = FRONTLIGHT_SENSITIVITY_DECREASE * 0.8
elseif ges.ges == "swipe" then
scale_multiplier = 0.8
else
scale_multiplier = 1
end
if ges.direction == "south" or ges.direction == "north" then
gestureScale = Screen:getHeight() * 0.8
gestureScale = Screen:getHeight() * scale_multiplier
elseif ges.direction == "west" or ges.direction == "east" then
gestureScale = Screen:getWidth() * 0.8
gestureScale = Screen:getWidth() * scale_multiplier
else
local width = Screen:getWidth()
local height = Screen:getHeight()
-- diagonal
gestureScale = math.sqrt(width * width + height * height) * 0.8
gestureScale = math.sqrt(width * width + height * height) * scale_multiplier
end
local steps_tbl = {}
@@ -212,18 +177,6 @@ function ReaderFrontLight:onShowWarmth(value)
return true
end
function ReaderFrontLight:onSwipe(arg, ges)
if ges.direction == "north" or ges.direction == "south" then
logger.dbg("onSwipe activated")
return self:onShowIntensity()
end
end
function ReaderFrontLight:onPanRelease(arg, ges)
logger.dbg("onPanRelease activated")
return self:onShowIntensity()
end
function ReaderFrontLight:onShowFlDialog()
local FrontLightWidget = require("ui/widget/frontlightwidget")
UIManager:show(FrontLightWidget:new{})