IME composition support

[0141KoppePan]

Is your feature request related to a problem? Please describe.
In vue.js v-model doesn't get updated during IME (Chinese, Japanese, Korean etc.) composition.But Quasar input v-model is not.

Describe the solution you'd like
Like Vue.js use compositionstart and compositionend events.
https://github.com/vuejs/vue/blob/dev/src/platforms/web/runtime/directives/model.js#L37-L38

Describe alternatives you've considered

--- QInput.original.js	2019-06-27 09:32:39.437264878 +0900
+++ QInput.js	2019-06-27 09:39:49.679331055 +0900
@@ -21,6 +21,8 @@
 
     debounce: [String, Number],
 
+    compose: Boolean,
+
     maxlength: [Number, String],
     autogrow: Boolean, // makes a textarea
 
@@ -72,7 +74,10 @@
   },
 
   data () {
-    return { innerValue: this.__getInitialMaskedValue() }
+    return {
+      innerValue: this.__getInitialMaskedValue(),
+      composing: false
+    }
   },
 
   computed: {
@@ -115,6 +120,15 @@
       this.autogrow === true && this.__adjustHeight()
     },
 
+    __onCompositionStart () {
+      this.composing = true;
+    },
+
+    __onCompositionEnd () {
+      if (!this.composing) return;
+      this.composing = false
+    },
+
     __emitValue (val, stopWatcher) {
       const fn = () => {
         if (
@@ -126,7 +140,11 @@
 
         if (this.value !== val) {
           stopWatcher === true && (this.stopValueWatcher = true)
-          this.$emit('input', val)
+	  if (this.compose) {
+            !this.composing && this.$emit('input', val)
+          } else {
+            this.$emit('input', val)
+          }
         }
       }
 
@@ -157,7 +175,9 @@
         ...this.$listeners,
         input: this.__onInput,
         focus: stop,
-        blur: stop
+        blur: stop,
+        compositionstart: this.__onCompositionStart,
+        compositionend: this.__onCompositionEnd
       }
 
       if (this.hasMask === true) {

[rstoenescu]

Hi,

Thanks for reporting this!

Would you be so kind to contact me on Discord? Want some help on fully testing the fix (my commit above). Would be lovely if this happens before I release the final 1.0.0 this Sunday.

Thanks in advance! -Razvan Stoenescu

[baryon]

From v1.15.6, The bug has reproduced. @rstoenescu
v1.15.5 works

[dolphin836]

Still not available in the 2.12.1 version