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[UX] Add home button (#3263)

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Tap to go HOME. Hold to set current folder as HOME. When no HOME is set yet tap also asks to set current folder as HOME.

See https://github.com/koreader/koreader/issues/2957#issuecomment-308513062

Closes #3200.
This commit is contained in:
Frans de Jonge
2017-09-27 18:15:11 +02:00
committed by GitHub
parent 6275453855
commit 0fc5a378bc
4 changed files with 86 additions and 26 deletions
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43
frontend/ui/widget/iconbutton.lua
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@@ -8,6 +8,8 @@ local InputContainer = require("ui/widget/container/inputcontainer")
local ImageWidget = require("ui/widget/imagewidget")
local GestureRange = require("ui/gesturerange")
local UIManager = require("ui/uimanager")
local VerticalGroup = require("ui/widget/verticalgroup")
local VerticalSpan = require("ui/widget/verticalspan")
local IconButton = InputContainer:new{
icon_file = "resources/info-confirm.png",
@@ -17,7 +19,11 @@ local IconButton = InputContainer:new{
width = nil,
height = nil,
scale_for_dpi = true,
horizontal_padding = 0,
padding = 0,
padding_top = nil,
padding_right = nil,
padding_bottom = nil,
padding_left = nil,
callback = function() end,
}
@@ -31,26 +37,35 @@ function IconButton:init()
self.show_parent = self.show_parent or self
self.button = HorizontalGroup:new{}
table.insert(self.button, HorizontalSpan:new{})
table.insert(self.button, self.image)
table.insert(self.button, HorizontalSpan:new{})
self.horizontal_group = HorizontalGroup:new{}
table.insert(self.horizontal_group, HorizontalSpan:new{})
table.insert(self.horizontal_group, self.image)
table.insert(self.horizontal_group, HorizontalSpan:new{})
self.button = VerticalGroup:new{}
table.insert(self.button, VerticalSpan:new{})
table.insert(self.button, self.horizontal_group)
table.insert(self.button, VerticalSpan:new{})
self[1] = self.button
self:update()
end
function IconButton:update()
self.button[1].width = self.horizontal_padding
self.button[3].width = self.horizontal_padding
self.dimen = self.image:getSize()
self.dimen.w = self.dimen.w + 2*self.horizontal_padding
self:initGesListener()
end
if not self.padding_top then self.padding_top = self.padding end
if not self.padding_right then self.padding_right = self.padding end
if not self.padding_bottom then self.padding_bottom = self.padding end
if not self.padding_left then self.padding_left = self.padding end
function IconButton:setHorizontalPadding(padding)
self.horizontal_padding = padding
self:update()
self.horizontal_group[1].width = self.padding_left
self.horizontal_group[3].width = self.padding_right
self.dimen = self.image:getSize()
self.dimen.w = self.dimen.w + self.padding_left+self.padding_right
self.button[1].width = self.padding_top
self.button[3].width = self.padding_bottom
self.dimen.h = self.dimen.h + self.padding_top+self.padding_bottom
self:initGesListener()
end
function IconButton:initGesListener()