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render.js
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render.js
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var fs = require('fs')
var hg = require('mercury')
var arrayEqual = require('array-equal')
var slice = Array.prototype.slice
var h = hg.h
var insertCss = require('insert-css')
insertCss(fs.readFileSync(__dirname + '/styles/core.css', 'utf8'))
var sendContext = hg.BaseEvent(function contextLambda (ev, broadcast) {
broadcast(ev)
})
var sendDataContext = hg.BaseEvent(function contextLambda (ev, broadcast) {
broadcast({event: ev, data: this.data})
})
module.exports = {
custom: custom,
'default': render.bind(null, {})
}
function render (overrides, state) {
return template(overrides, state, 'combobox')
}
function custom (overrides) {
return render.bind(null, overrides)
}
function template (overrides, state, name) {
var temp = overrides && overrides[name]
? overrides[name] : templates[name]
return temp.apply(null, [state, template.bind(null, overrides, state)]
.concat(slice.call(arguments, 3))
)
}
var templates = {
combobox: function (state, template) {
return h('div.fancy-select', {className: state.isOpen ? 'focused' : ''}, [
template('textbox'),
template('listbox')
])
},
textbox: function (state, template) {
return h('div.background', {
'ev-click': sendContext(state.channels.focusInput)
}, [
h('div.list', [
state.value.map(function (v) { return h('span.listitem', v.label) })
]),
template('input')
])
},
listbox: function (state, template) {
return !state.isOpen ? null
: h('div.listbox', template('group', state.filtered))
},
group: function (state, template, items, base) {
base = base || []
return items.map(function (option, index) {
var path = base.slice(0).concat(index)
if (option.options) {
return h('div.groupbox', [
h('label.grouplabel', option.label),
h('div.group', template('group', option.options, path))
])
} else {
return template('option', option, path)
}
})
},
option: function (state, template, option, path) {
return h('div.option', {
tabIndex: 1000,
className: option.value && arrayEqual(path, state.active) ? 'focused' : '',
'ev-click': sendDataContext(state.channels.clickOption, path)
}, template('optionlabel', option, path))
},
optionlabel: function (state, template, option) {
return option.label
},
input: function (state, template) {
return h('input', {
type: 'text',
name: 'query',
autocomplete: 'off',
value: state.query,
placeholder: state.placeholder,
style: {
width: state.inputWidth + 'px'
},
'ev-input': hg.sendValue(state.channels.setQuery, {}),
'ev-event': sendContext(state.channels.inputEvent)
})
}
}