mirror of https://github.com/kepler155c/opus
105 lines
2.0 KiB
Lua
105 lines
2.0 KiB
Lua
local UI = require('opus.ui')
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local Util = require('opus.util')
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local colors = _G.colors
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local help = _G.help
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UI:configure('Help', ...)
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local topics = { }
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for _,topic in pairs(help.topics()) do
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if help.lookup(topic) then
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table.insert(topics, { name = topic })
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end
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end
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local page = UI.Page {
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labelText = UI.Text {
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x = 3, y = 2,
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value = 'Search',
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},
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filter = UI.TextEntry {
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x = 10, y = 2, ex = -3,
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limit = 32,
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transform = 'lowercase',
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},
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grid = UI.ScrollingGrid {
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y = 4,
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values = topics,
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columns = {
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{ heading = 'Topic', key = 'name' },
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},
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sortColumn = 'name',
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},
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accelerators = {
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[ 'control-q' ] = 'quit',
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enter = 'grid_select',
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},
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}
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local topicPage = UI.Page {
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backgroundColor = colors.black,
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titleBar = UI.TitleBar {
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title = 'text',
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event = 'back',
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},
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helpText = UI.TextArea {
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backgroundColor = colors.black,
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x = 2, ex = -1, y = 3, ey = -2,
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},
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accelerators = {
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[ 'control-q' ] = 'back',
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backspace = 'back',
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},
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}
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function topicPage:enable(name)
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local f = help.lookup(name)
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self.titleBar.title = name
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self.helpText:setText(f and Util.readFile(f) or 'No help available for ' .. name)
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return UI.Page.enable(self)
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end
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function topicPage:eventHandler(event)
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if event.type == 'back' then
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UI:setPage(page)
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end
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return UI.Page.eventHandler(self, event)
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end
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function page:eventHandler(event)
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if event.type == 'quit' then
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UI:exitPullEvents()
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elseif event.type == 'grid_select' then
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if self.grid:getSelected() then
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local name = self.grid:getSelected().name
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UI:setPage(topicPage, name)
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end
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elseif event.type == 'text_change' then
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if not event.text then
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self.grid.values = topics
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else
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self.grid.values = { }
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for _,f in pairs(topics) do
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if string.find(f.name, event.text) then
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table.insert(self.grid.values, f)
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end
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end
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end
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self.grid:update()
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self.grid:setIndex(1)
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self.grid:draw()
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else
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return UI.Page.eventHandler(self, event)
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end
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end
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local args = Util.parse(...)
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UI:setPage(args[1] and topicPage or page, args[1])
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UI:pullEvents()
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