mirror of https://github.com/koreader/koreader
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
185 lines
4.8 KiB
Lua
185 lines
4.8 KiB
Lua
require "ui/reader/readerpanning"
|
|
|
|
ReaderRolling = InputContainer:new{
|
|
old_doc_height = nil,
|
|
current_pos = 0,
|
|
doc_height = nil,
|
|
panning_steps = ReaderPanning.panning_steps,
|
|
show_overlap_enable = true,
|
|
overlap = 20,
|
|
}
|
|
|
|
function ReaderRolling:init()
|
|
if Device:isTouchDevice() then
|
|
self.ges_events = {
|
|
TapForward = {
|
|
GestureRange:new{
|
|
ges = "tap",
|
|
range = Geom:new{
|
|
x = Screen:getWidth()/2,
|
|
y = Screen:getHeight()/2,
|
|
w = Screen:getWidth(),
|
|
h = Screen:getHeight()
|
|
}
|
|
}
|
|
},
|
|
TapBackward = {
|
|
GestureRange:new{
|
|
ges = "tap",
|
|
range = Geom:new{
|
|
x = 0,
|
|
y = Screen:getHeight()/2,
|
|
w = Screen:getWidth()/2,
|
|
h = Screen:getHeight()/2,
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
self.key_events = {
|
|
GotoNextView = {
|
|
{ Input.group.PgFwd },
|
|
doc = "go to next view",
|
|
event = "GotoViewRel", args = 1
|
|
},
|
|
GotoPrevView = {
|
|
{ Input.group.PgBack },
|
|
doc = "go to previous view",
|
|
event = "GotoViewRel", args = -1
|
|
},
|
|
MoveUp = {
|
|
{ "Up" },
|
|
doc = "move view up",
|
|
event = "Panning", args = {0, -1}
|
|
},
|
|
MoveDown = {
|
|
{ "Down" },
|
|
doc = "move view down",
|
|
event = "Panning", args = {0, 1}
|
|
},
|
|
GotoFirst = {
|
|
{"1"}, doc = "go to start", event = "GotoPercent", args = 0},
|
|
Goto11 = {
|
|
{"2"}, doc = "go to 11%", event = "GotoPercent", args = 11},
|
|
Goto22 = {
|
|
{"3"}, doc = "go to 22%", event = "GotoPercent", args = 22},
|
|
Goto33 = {
|
|
{"4"}, doc = "go to 33%", event = "GotoPercent", args = 33},
|
|
Goto44 = {
|
|
{"5"}, doc = "go to 44%", event = "GotoPercent", args = 44},
|
|
Goto55 = {
|
|
{"6"}, doc = "go to 55%", event = "GotoPercent", args = 55},
|
|
Goto66 = {
|
|
{"7"}, doc = "go to 66%", event = "GotoPercent", args = 66},
|
|
Goto77 = {
|
|
{"8"}, doc = "go to 77%", event = "GotoPercent", args = 77},
|
|
Goto88 = {
|
|
{"9"}, doc = "go to 88%", event = "GotoPercent", args = 88},
|
|
GotoLast = {
|
|
{"0"}, doc = "go to end", event = "GotoPercent", args = 100},
|
|
}
|
|
end
|
|
|
|
self.doc_height = self.ui.document.info.doc_height
|
|
self.old_doc_height = self.doc_height
|
|
end
|
|
|
|
function ReaderRolling:onReadSettings(config)
|
|
self:gotoPercent(config:readSetting("last_percent") or 0)
|
|
local soe = config:readSetting("show_overlap_enable")
|
|
if not soe then
|
|
self.show_overlap_enable = soe
|
|
end
|
|
end
|
|
|
|
function ReaderRolling:onCloseDocument()
|
|
self.ui.doc_settings:saveSetting("last_percent",
|
|
10000 * self.current_pos / self.doc_height)
|
|
end
|
|
|
|
function ReaderRolling:onTapForward()
|
|
self:onGotoViewRel(1)
|
|
return true
|
|
end
|
|
|
|
function ReaderRolling:onTapBackward()
|
|
self:onGotoViewRel(-1)
|
|
return true
|
|
end
|
|
|
|
function ReaderRolling:onPosUpdate(new_pos)
|
|
self.current_pos = new_pos
|
|
end
|
|
|
|
function ReaderRolling:onGotoPercent(percent)
|
|
DEBUG("goto document offset in percent:", percent)
|
|
self:gotoPercent(percent)
|
|
return true
|
|
end
|
|
|
|
function ReaderRolling:onGotoViewRel(diff)
|
|
DEBUG("goto relative screen:", diff)
|
|
local pan_diff = diff * self.ui.dimen.h
|
|
if self.show_overlap_enable then
|
|
if pan_diff > self.overlap then
|
|
pan_diff = pan_diff - self.overlap
|
|
elseif pan_diff < -self.overlap then
|
|
pan_diff = pan_diff + self.overlap
|
|
end
|
|
end
|
|
self:gotoPos(self.current_pos + pan_diff)
|
|
return true
|
|
end
|
|
|
|
function ReaderRolling:onPanning(args, key)
|
|
local _, dy = unpack(args)
|
|
DEBUG("key =", key)
|
|
self:gotoPos(self.current_pos + dy * self.panning_steps.normal)
|
|
return true
|
|
end
|
|
|
|
function ReaderRolling:onZoom()
|
|
--@TODO re-read doc_height info after font or lineheight changes 05.06 2012 (houqp)
|
|
self:onUpdatePos()
|
|
end
|
|
|
|
-- remember to signal this event the document has been zoomed,
|
|
-- font has been changed, or line height has been changed.
|
|
function ReaderRolling:onUpdatePos()
|
|
-- reread document height
|
|
self.ui.document:_readMetadata()
|
|
-- update self.current_pos if the height of document has been changed.
|
|
if self.old_doc_height ~= self.ui.document.info.doc_height then
|
|
self:gotoPos(self.current_pos *
|
|
(self.ui.document.info.doc_height - self.dialog.dimen.h) /
|
|
(self.old_doc_height - self.dialog.dimen.h))
|
|
self.old_doc_height = self.ui.document.info.doc_height
|
|
end
|
|
return true
|
|
end
|
|
|
|
function ReaderRolling:gotoPos(new_pos)
|
|
if new_pos == self.current_pos then return end
|
|
if new_pos < 0 then new_pos = 0 end
|
|
if new_pos > self.doc_height then new_pos = self.doc_height end
|
|
-- adjust dim_area according to new_pos
|
|
if self.show_overlap_enable then
|
|
local panned_step = new_pos - self.current_pos
|
|
self.view.dim_area.x = 0
|
|
self.view.dim_area.h = self.ui.dimen.h - math.abs(panned_step)
|
|
self.view.dim_area.w = self.ui.dimen.w
|
|
if panned_step < 0 then
|
|
self.view.dim_area.y = self.ui.dimen.h - self.view.dim_area.h
|
|
elseif panned_step > 0 then
|
|
self.view.dim_area.y = 0
|
|
end
|
|
end
|
|
self.ui:handleEvent(Event:new("PosUpdate", new_pos))
|
|
end
|
|
|
|
function ReaderRolling:gotoPercent(new_percent)
|
|
self:gotoPos(new_percent * self.doc_height / 10000)
|
|
end
|
|
|
|
|