mirror of
https://github.com/koreader/koreader
synced 2024-11-18 03:25:46 +00:00
fadee1f5dc
Basically: * Use `extend` for class definitions * Use `new` for object instantiations That includes some minor code cleanups along the way: * Updated `Widget`'s docs to make the semantics clearer. * Removed `should_restrict_JIT` (it's been dead code since https://github.com/koreader/android-luajit-launcher/pull/283) * Minor refactoring of LuaSettings/LuaData/LuaDefaults/DocSettings to behave (mostly, they are instantiated via `open` instead of `new`) like everything else and handle inheritance properly (i.e., DocSettings is now a proper LuaSettings subclass). * Default to `WidgetContainer` instead of `InputContainer` for stuff that doesn't actually setup key/gesture events. * Ditto for explicit `*Listener` only classes, make sure they're based on `EventListener` instead of something uselessly fancier. * Unless absolutely necessary, do not store references in class objects, ever; only values. Instead, always store references in instances, to avoid both sneaky inheritance issues, and sneaky GC pinning of stale references. * ReaderUI: Fix one such issue with its `active_widgets` array, with critical implications, as it essentially pinned *all* of ReaderUI's modules, including their reference to the `Document` instance (i.e., that was a big-ass leak). * Terminal: Make sure the shell is killed on plugin teardown. * InputText: Fix Home/End/Del physical keys to behave sensibly. * InputContainer/WidgetContainer: If necessary, compute self.dimen at paintTo time (previously, only InputContainers did, which might have had something to do with random widgets unconcerned about input using it as a baseclass instead of WidgetContainer...). * OverlapGroup: Compute self.dimen at *init* time, because for some reason it needs to do that, but do it directly in OverlapGroup instead of going through a weird WidgetContainer method that it was the sole user of. * ReaderCropping: Under no circumstances should a Document instance member (here, self.bbox) risk being `nil`ed! * Kobo: Minor code cleanups.
278 lines
10 KiB
Lua
278 lines
10 KiB
Lua
local Blitbuffer = require("ffi/blitbuffer")
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local Button = require("ui/widget/button")
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local Device = require("device")
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local FocusManager = require("ui/widget/focusmanager")
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local Geom = require("ui/geometry")
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local HorizontalGroup = require("ui/widget/horizontalgroup")
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local HorizontalSpan = require("ui/widget/horizontalspan")
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local FrameContainer = require("ui/widget/container/framecontainer")
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local Size = require("ui/size")
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local UIManager = require("ui/uimanager")
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local _ = require("gettext")
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local Screen = Device.screen
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local ButtonProgressWidget = FocusManager:extend{
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width = Screen:scaleBySize(216),
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height = Size.item.height_default,
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padding = Size.padding.small,
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font_face = "cfont",
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font_size = 16,
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enabled = true,
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num_buttons = 2,
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position = 1,
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default_position = nil,
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thin_grey_style = false, -- default to black
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fine_tune = false, -- no -/+ buttons on the extremities by default
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more_options = false, -- no "⋮" button
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}
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function ButtonProgressWidget:init()
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self.current_button_index = self.position
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self.buttonprogress_frame = FrameContainer:new{
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background = Blitbuffer.COLOR_WHITE,
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color = Blitbuffer.COLOR_DARK_GRAY,
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radius = Size.radius.window,
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bordersize = 0,
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padding = self.padding,
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dim = not self.enabled,
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}
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self.buttonprogress_content = HorizontalGroup:new{}
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self.horizontal_span_width = 0
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if self.fine_tune or self.more_options then
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self.horizontal_span = HorizontalSpan:new{
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width = Size.margin.fine_tune
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}
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self.horizontal_span_width = self.horizontal_span.width
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end
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self:update()
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if self.fine_tune then
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self.current_button_index = self.current_button_index + 1
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end
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self.buttonprogress_frame[1] = self.buttonprogress_content
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self[1] = self.buttonprogress_frame
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self.dimen = Geom:new(self.buttonprogress_frame:getSize())
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end
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function ButtonProgressWidget:update()
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self.layout = {{}}
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self.buttonprogress_content:clear()
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local button_margin = Size.margin.tiny
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local button_padding = Size.padding.button
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local button_bordersize = self.thin_grey_style and Size.border.thin or Size.border.button
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local buttons_count = self.num_buttons
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local span_count = 0
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if self.fine_tune then
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buttons_count = buttons_count + 2
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span_count = 2
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end
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if self.more_options then
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buttons_count = buttons_count + 1
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span_count = span_count + 1
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end
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local button_width_real = (self.width - span_count * self.horizontal_span_width) / buttons_count - 2*button_padding - 2*button_margin - 2*button_bordersize
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local button_width = math.floor(button_width_real)
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local button_width_adjust = button_width_real - button_width
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local button_width_to_add = 0
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-- Minus button on the left
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if self.fine_tune then
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button_width_to_add = button_width_to_add + button_width_adjust
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local margin = button_margin
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local extra_border_size = 0
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local button = Button:new{
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text = "−",
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radius = 0,
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margin = margin,
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padding = button_padding,
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bordersize = button_bordersize + extra_border_size,
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enabled = true,
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width = button_width - 2*extra_border_size,
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preselect = false,
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text_font_face = self.font_face,
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text_font_size = self.font_size,
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callback = function()
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self.callback("-")
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self:update()
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end,
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hold_callback = self.hold_callback and function() self.hold_callback("-") end,
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}
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if self.thin_grey_style then
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button.frame.color = Blitbuffer.COLOR_DARK_GRAY
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end
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table.insert(self.buttonprogress_content, button)
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table.insert(self.layout[1], button)
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table.insert(self.buttonprogress_content, self.horizontal_span)
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end
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-- Actual progress bar
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for i = 1, self.num_buttons do
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button_width_to_add = button_width_to_add + button_width_adjust
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local real_button_width = button_width
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if button_width_to_add >= 1 then
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-- One pixel wider to better align the entire widget
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real_button_width = button_width + math.floor(button_width_to_add)
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button_width_to_add = button_width_to_add - math.floor(button_width_to_add)
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end
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local highlighted = i <= self.position
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local is_default = i == self.default_position
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local margin = button_margin
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if self.thin_grey_style and highlighted then
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margin = 0 -- moved outside button so it's not inverted
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end
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local extra_border_size = 0
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if not self.thin_grey_style and is_default then
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-- make the border a bit bigger on the default button
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extra_border_size = Size.border.thin
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end
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local button = Button:new{
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text = "",
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radius = 0,
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margin = margin,
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padding = button_padding,
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bordersize = button_bordersize + extra_border_size,
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enabled = true,
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width = real_button_width - 2*extra_border_size,
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preselect = highlighted,
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text_font_face = self.font_face,
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text_font_size = self.font_size,
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callback = function()
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self.callback(i)
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self.position = i
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self:update()
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end,
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no_focus = highlighted,
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hold_callback = self.hold_callback and function() self.hold_callback(i) end,
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}
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if self.thin_grey_style then
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if is_default then
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-- use a black border as a discreet visual hint
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button.frame.color = Blitbuffer.COLOR_BLACK
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else
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-- otherwise, gray border, same as the filled
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-- button, so looking as if no border
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button.frame.color = Blitbuffer.COLOR_DARK_GRAY
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end
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if highlighted then
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-- The button and its frame background will be inverted,
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-- so invert the color we want so it gets inverted back
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button.frame.background = Blitbuffer.COLOR_DARK_GRAY:invert()
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button = FrameContainer:new{ -- add margin back
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margin = button_margin,
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padding = 0,
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bordersize = 0,
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focusable = true,
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focus_border_size = Size.border.thin,
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button,
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}
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end
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end
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table.insert(self.buttonprogress_content, button)
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table.insert(self.layout[1], button)
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end
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-- Plus button on the right
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if self.fine_tune then
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button_width_to_add = button_width_to_add + button_width_adjust
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local real_button_width = button_width
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if button_width_to_add >= 1 then
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-- One pixel wider to better align the entire widget
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real_button_width = button_width + math.floor(button_width_to_add)
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button_width_to_add = button_width_to_add - math.floor(button_width_to_add)
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end
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local margin = button_margin
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local extra_border_size = 0
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local button = Button:new{
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text = "＋",
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radius = 0,
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margin = margin,
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padding = button_padding,
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bordersize = button_bordersize + extra_border_size,
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enabled = true,
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width = real_button_width - 2*extra_border_size,
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preselect = false,
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text_font_face = self.font_face,
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text_font_size = self.font_size,
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callback = function()
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self.callback("+")
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self:update()
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end,
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hold_callback = self.hold_callback and function() self.hold_callback("+") end,
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}
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if self.thin_grey_style then
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button.frame.color = Blitbuffer.COLOR_DARK_GRAY
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end
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table.insert(self.buttonprogress_content, self.horizontal_span)
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table.insert(self.buttonprogress_content, button)
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table.insert(self.layout[1], button)
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end
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-- More option button on the right
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if self.more_options then
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button_width_to_add = button_width_to_add + button_width_adjust
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local real_button_width = button_width
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if button_width_to_add >= 1 then
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-- One pixel wider to better align the entire widget
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real_button_width = button_width + math.floor(button_width_to_add)
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end
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local margin = button_margin
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local extra_border_size = 0
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local button = Button:new{
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text = "⋮",
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radius = 0,
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margin = margin,
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padding = button_padding,
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bordersize = button_bordersize + extra_border_size,
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enabled = true,
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width = real_button_width - 2*extra_border_size,
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preselect = false,
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text_font_face = self.font_face,
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text_font_size = self.font_size,
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callback = function()
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self.callback("⋮")
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self:update()
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end,
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hold_callback = self.hold_callback and function() self.hold_callback("⋮") end,
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}
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if self.thin_grey_style then
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button.frame.color = Blitbuffer.COLOR_DARK_GRAY
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end
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table.insert(self.buttonprogress_content, self.horizontal_span)
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table.insert(self.buttonprogress_content, button)
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table.insert(self.layout[1], button)
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end
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self:refocusWidget()
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UIManager:setDirty(self.show_parent, function()
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return "ui", self.dimen
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end)
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end
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function ButtonProgressWidget:setPosition(position, default_position)
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self.position = position
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self.default_position = default_position
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self:update()
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end
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function ButtonProgressWidget:onTapSelect(arg, gev)
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if gev == nil then
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self:circlePosition()
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end
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end
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function ButtonProgressWidget:circlePosition()
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if self.position then
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self.position = self.position+1
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if self.position > self.num_buttons then
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self.position = 1
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end
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self.callback(self.position)
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self:update()
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end
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end
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return ButtonProgressWidget
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