94 lines
2.7 KiB
Lua
94 lines
2.7 KiB
Lua
local gui = require('gui')
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local widgets = require('gui.widgets')
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function test.update()
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local s = widgets.Scrollbar{}
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s.frame_body = {height=100} -- give us some space to work with
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-- initial defaults
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expect.eq(1, s.top_elem)
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expect.eq(1, s.elems_per_page)
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expect.eq(1, s.num_elems)
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expect.eq(0, s.bar_offset)
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expect.eq(1, s.bar_height)
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-- top_elem, elems_per_page, num_elems
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s:update(1, 10, 0)
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expect.eq(1, s.top_elem)
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expect.eq(10, s.elems_per_page)
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expect.eq(0, s.num_elems)
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expect.eq(0, s.bar_offset)
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expect.eq(1, s.bar_height)
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-- first 10 of 50 shown
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s:update(1, 10, 50)
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expect.eq(1, s.top_elem)
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expect.eq(10, s.elems_per_page)
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expect.eq(50, s.num_elems)
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expect.eq(0, s.bar_offset)
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expect.eq(19, s.bar_height)
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-- bottom 10 of 50 shown
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s:update(41, 10, 50)
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expect.eq(41, s.top_elem)
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expect.eq(10, s.elems_per_page)
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expect.eq(50, s.num_elems)
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expect.eq(79, s.bar_offset)
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expect.eq(19, s.bar_height)
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-- ~middle 10 of 50 shown
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s:update(23, 10, 50)
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expect.eq(23, s.top_elem)
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expect.eq(10, s.elems_per_page)
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expect.eq(50, s.num_elems)
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expect.eq(44, s.bar_offset)
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expect.eq(19, s.bar_height)
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end
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function test.onInput()
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local spec = nil
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local mock_on_scroll = function(scroll_spec) spec = scroll_spec end
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local s = widgets.Scrollbar{on_scroll=mock_on_scroll}
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s.frame_body = {height=100} -- give us some space to work with
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local y = nil
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s.getMousePos = function() return 0, y end
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-- put scrollbar somewhere in the middle so we can click above and below it
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s:update(23, 10, 50)
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expect.false_(s:onInput{}, 'no mouse down')
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expect.false_(s:onInput{_MOUSE_L_DOWN=true}, 'no y coord')
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spec, y = nil, 0
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.eq('up_small', spec, 'on up arrow')
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spec, y = nil, 1
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.eq('up_large', spec, 'on body above bar')
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spec, y = nil, 44
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.eq('up_large', spec, 'on body just above bar')
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spec, y = nil, 45
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.nil_(spec, 'on top of bar')
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spec, y = nil, 63
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.nil_(spec, 'on bottom of bar')
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spec, y = nil, 64
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.eq('down_large', spec, 'on body just below bar')
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spec, y = nil, 98
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.eq('down_large', spec, 'on body below bar')
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spec, y = nil, 99
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expect.true_(s:onInput{_MOUSE_L_DOWN=true})
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expect.eq('down_small', spec, 'on down arrow')
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end
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