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cryptpad/www/code/codemirror-5.7/addon/display/autorefresh.js

48 lines
1.5 KiB
JavaScript

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"))
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod)
else // Plain browser env
mod(CodeMirror)
})(function(CodeMirror) {
"use strict"
CodeMirror.defineOption("autoRefresh", false, function(cm, val) {
if (cm.state.autoRefresh) {
stopListening(cm, cm.state.autoRefresh)
cm.state.autoRefresh = null
}
if (val && cm.display.wrapper.offsetHeight == 0)
startListening(cm, cm.state.autoRefresh = {delay: val.delay || 250})
})
function startListening(cm, state) {
function check() {
if (cm.display.wrapper.offsetHeight) {
stopListening(cm, state)
if (cm.display.lastWrapHeight != cm.display.wrapper.clientHeight)
cm.refresh()
} else {
state.timeout = setTimeout(check, state.delay)
}
}
state.timeout = setTimeout(check, state.delay)
state.hurry = function() {
clearTimeout(state.timeout)
state.timeout = setTimeout(check, 50)
}
CodeMirror.on(window, "mouseup", state.hurry)
CodeMirror.on(window, "keyup", state.hurry)
}
function stopListening(_cm, state) {
clearTimeout(state.timeout)
CodeMirror.off(window, "mouseup", state.hurry)
CodeMirror.off(window, "keyup", state.hurry)
}
});