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text widget: move caret a word at a time

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airstruck
2016-01-27 13:28:17 -05:00
parent 0fc431d894
commit e6c649ba49
1 changed files with 37 additions and 16 deletions
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53
luigi/widget/text.lua
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@@ -78,8 +78,8 @@ local function findIndexFromPoint (self, x, y)
return #self.value
end
-- move the caret one character to the left
local function moveCaretLeft (self, alterRange)
-- move the caret or end of selection range one character to the left
local function moveCharLeft (self, alterRange)
trimRange(self)
local text, endIndex = self.value, self.endIndex
@@ -91,14 +91,22 @@ local function moveCaretLeft (self, alterRange)
selectRange(self, not alterRange and index, index)
end
-- move the caret to the beginning of the line
local function jumpCaretLeft (self, alterRange)
-- move caret or end of selection range one word to the left
local function moveWordLeft (self, alterRange)
trimRange(self)
local text = self.value:sub(1, self.endIndex)
local pos = text:find('%s[^%s]+%s*$') or 0
selectRange(self, not alterRange and pos, pos)
end
-- move the caret or end of selection range to the beginning of the line
local function moveLineLeft (self, alterRange)
trimRange(self)
selectRange(self, not alterRange and 0, 0)
end
-- move the caret one character to the right
local function moveCaretRight (self, alterRange)
-- move caret or end of selection range one character to the right
local function moveCharRight (self, alterRange)
trimRange(self)
local text, endIndex = self.value, self.endIndex
@@ -110,8 +118,17 @@ local function moveCaretRight (self, alterRange)
selectRange(self, not alterRange and index, index)
end
-- move the caret to the end of the line
local function jumpCaretRight (self, alterRange)
-- move caret or end of selection range one word to the right
local function moveWordRight (self, alterRange)
trimRange(self)
local text = self.value
local _, pos = text:find('^%s*[^%s]+', self.endIndex + 1)
pos = pos or #text + 1
selectRange(self, not alterRange and pos, pos)
end
-- move caret or end of selection range to the end of the line
local function moveLineRight (self, alterRange)
trimRange(self)
local text = self.value
selectRange(self, not alterRange and #text, #text)
@@ -298,27 +315,31 @@ This color is used to indicate the selected range of text.
elseif event.key == 'left' then
if Backend.isKeyDown('lgui', 'rgui') then
jumpCaretLeft(self, isShiftPressed())
if Backend.isKeyDown('lctrl', 'rctrl') then
moveWordLeft(self, isShiftPressed())
elseif Backend.isKeyDown('lgui', 'rgui') then
moveLineLeft(self, isShiftPressed())
else
moveCaretLeft(self, isShiftPressed())
moveCharLeft(self, isShiftPressed())
end
elseif event.key == 'right' then
if Backend.isKeyDown('lgui', 'rgui') then
jumpCaretRight(self, isShiftPressed())
if Backend.isKeyDown('lctrl', 'rctrl') then
moveWordRight(self, isShiftPressed())
elseif Backend.isKeyDown('lgui', 'rgui') then
moveLineRight(self, isShiftPressed())
else
moveCaretRight(self, isShiftPressed())
moveCharRight(self, isShiftPressed())
end
elseif event.key == 'home' then
jumpCaretLeft(self, isShiftPressed())
moveLineLeft(self, isShiftPressed())
elseif event.key == 'end' then
jumpCaretRight(self, isShiftPressed())
moveLineRight(self, isShiftPressed())
elseif event.key == 'x' and isCommandPressed() then