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codemirror.vue
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codemirror.vue
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<template>
<div class="vue-codemirror-wrap">
<textarea></textarea>
</div>
</template>
<script>
var CodeMirror = require('codemirror/lib/codemirror.js')
require('codemirror/lib/codemirror.css')
export default {
props: {
value: {
type: String,
default: ''
},
options: {
type: Object,
default: function () {
return {
mode: 'text/javascript',
lineNumbers: true,
lineWrapping: true
}
}
},
},
data: function () {
return {
skipNextChangeEvent: false
}
},
ready: function () {
var _this = this
this.editor = CodeMirror.fromTextArea(this.$el.querySelector('textarea'), this.options)
this.editor.setValue(this.value)
this.editor.on('change', function(cm) {
if (_this.skipNextChangeEvent) {
_this.skipNextChangeEvent = false
return
}
_this.value = cm.getValue()
if (!!_this.$emit) {
_this.$emit('change', cm.getValue())
}
})
},
mounted: function () {
var _this = this
this.editor = CodeMirror.fromTextArea(this.$el.querySelector('textarea'), this.options)
this.editor.setValue(this.value)
this.editor.on('change', function(cm) {
if (_this.skipNextChangeEvent) {
_this.skipNextChangeEvent = false
return
}
if (!!_this.$emit) {
_this.$emit('change', cm.getValue())
_this.$emit('input', cm.getValue())
}
})
},
watch: {
'value': function (newVal, oldVal) {
var editorValue = this.editor.getValue()
if (newVal !== editorValue) {
this.skipNextChangeEvent = true
var scrollInfo = this.editor.getScrollInfo()
this.editor.setValue(newVal)
this.editor.scrollTo(scrollInfo.left, scrollInfo.top)
}
},
'options': function (newOptions, oldVal) {
if (typeof newOptions === 'object') {
for (var optionName in newOptions) {
if (newOptions.hasOwnProperty(optionName)) {
this.editor.setOption(optionName, newOptions[optionName])
}
}
}
}
},
beforeDestroy: function () {
if (this.editor) {
this.editor.toTextArea()
}
}
}
</script>
<style>
.CodeMirror-code {
font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
}
</style>