Vue. Set focus on a component's input when value in Vuex store is modified












1















So this is the code I have in my component:



//template
<v-select ref='ItemSearchSelect' :options="options"></v-select>
...
//script
created: function () {
this.$store.subscribe((setFocusSearch, state) => {
if (setFocusSearch.type == 'setFocusSearch' && setFocusSearch.payload == true){
this.$refs.ItemSearchSelect.$refs.search.focus()
this.$store.commit('setFocusSearch',false)
}
})
},


This is my store mutation, which can be called from any other component:



setFocusSearch(state,val){
state.focussearch = val;
},


Sometimes it's working correctly, but other times I can see this error in console, and the focus is not working:



Uncaught TypeError: Cannot read property '$refs' of undefined
at eval (ItemSearch.vue?d78c:38)
at eval (vuex.esm.js?2f62:392)
at Array.forEach (<anonymous>)
at Store.commit (vuex.esm.js?2f62:392)
at Store.boundCommit [as commit] (vuex.esm.js?2f62:335)
at VueComponent.focusSearch (ShoppingCart.vue?0f5b:96)
at keydown (eval at ./node_modules/cache-loader/dist/cjs.js?
...


It always happens in this case:



Router push to a a view with my ItemSearch component and the component that triggers the store mutation. At this moment everything is working fine. Now I router push to another view that has nothing to do, and then I go back with router push to the original view. At this moment, when the mutation is triggered, I get the error.



Any ideas on what's going on?










share|improve this question



























    1















    So this is the code I have in my component:



    //template
    <v-select ref='ItemSearchSelect' :options="options"></v-select>
    ...
    //script
    created: function () {
    this.$store.subscribe((setFocusSearch, state) => {
    if (setFocusSearch.type == 'setFocusSearch' && setFocusSearch.payload == true){
    this.$refs.ItemSearchSelect.$refs.search.focus()
    this.$store.commit('setFocusSearch',false)
    }
    })
    },


    This is my store mutation, which can be called from any other component:



    setFocusSearch(state,val){
    state.focussearch = val;
    },


    Sometimes it's working correctly, but other times I can see this error in console, and the focus is not working:



    Uncaught TypeError: Cannot read property '$refs' of undefined
    at eval (ItemSearch.vue?d78c:38)
    at eval (vuex.esm.js?2f62:392)
    at Array.forEach (<anonymous>)
    at Store.commit (vuex.esm.js?2f62:392)
    at Store.boundCommit [as commit] (vuex.esm.js?2f62:335)
    at VueComponent.focusSearch (ShoppingCart.vue?0f5b:96)
    at keydown (eval at ./node_modules/cache-loader/dist/cjs.js?
    ...


    It always happens in this case:



    Router push to a a view with my ItemSearch component and the component that triggers the store mutation. At this moment everything is working fine. Now I router push to another view that has nothing to do, and then I go back with router push to the original view. At this moment, when the mutation is triggered, I get the error.



    Any ideas on what's going on?










    share|improve this question

























      1












      1








      1








      So this is the code I have in my component:



      //template
      <v-select ref='ItemSearchSelect' :options="options"></v-select>
      ...
      //script
      created: function () {
      this.$store.subscribe((setFocusSearch, state) => {
      if (setFocusSearch.type == 'setFocusSearch' && setFocusSearch.payload == true){
      this.$refs.ItemSearchSelect.$refs.search.focus()
      this.$store.commit('setFocusSearch',false)
      }
      })
      },


      This is my store mutation, which can be called from any other component:



      setFocusSearch(state,val){
      state.focussearch = val;
      },


      Sometimes it's working correctly, but other times I can see this error in console, and the focus is not working:



      Uncaught TypeError: Cannot read property '$refs' of undefined
      at eval (ItemSearch.vue?d78c:38)
      at eval (vuex.esm.js?2f62:392)
      at Array.forEach (<anonymous>)
      at Store.commit (vuex.esm.js?2f62:392)
      at Store.boundCommit [as commit] (vuex.esm.js?2f62:335)
      at VueComponent.focusSearch (ShoppingCart.vue?0f5b:96)
      at keydown (eval at ./node_modules/cache-loader/dist/cjs.js?
      ...


      It always happens in this case:



      Router push to a a view with my ItemSearch component and the component that triggers the store mutation. At this moment everything is working fine. Now I router push to another view that has nothing to do, and then I go back with router push to the original view. At this moment, when the mutation is triggered, I get the error.



      Any ideas on what's going on?










      share|improve this question














      So this is the code I have in my component:



      //template
      <v-select ref='ItemSearchSelect' :options="options"></v-select>
      ...
      //script
      created: function () {
      this.$store.subscribe((setFocusSearch, state) => {
      if (setFocusSearch.type == 'setFocusSearch' && setFocusSearch.payload == true){
      this.$refs.ItemSearchSelect.$refs.search.focus()
      this.$store.commit('setFocusSearch',false)
      }
      })
      },


      This is my store mutation, which can be called from any other component:



      setFocusSearch(state,val){
      state.focussearch = val;
      },


      Sometimes it's working correctly, but other times I can see this error in console, and the focus is not working:



      Uncaught TypeError: Cannot read property '$refs' of undefined
      at eval (ItemSearch.vue?d78c:38)
      at eval (vuex.esm.js?2f62:392)
      at Array.forEach (<anonymous>)
      at Store.commit (vuex.esm.js?2f62:392)
      at Store.boundCommit [as commit] (vuex.esm.js?2f62:335)
      at VueComponent.focusSearch (ShoppingCart.vue?0f5b:96)
      at keydown (eval at ./node_modules/cache-loader/dist/cjs.js?
      ...


      It always happens in this case:



      Router push to a a view with my ItemSearch component and the component that triggers the store mutation. At this moment everything is working fine. Now I router push to another view that has nothing to do, and then I go back with router push to the original view. At this moment, when the mutation is triggered, I get the error.



      Any ideas on what's going on?







      javascript vue.js vuex






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 2 at 0:06









      Jack CasasJack Casas

      316619




      316619
























          1 Answer
          1






          active

          oldest

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          3














          When your component is unmounted / destroyed, the mutation subscription will live on in the store. This is why the this reference in your subscriber becomes undefined.



          What you need to do is remove the subscription when your component is destroyed. See https://vuex.vuejs.org/api/#subscribe...




          To stop subscribing, call the returned unsubscribe function.




          For example



          mounted () {
          // the name isn't really important and since this isn't a reactive property,
          // you don't need to have this defined in "data"
          this.focusSearchUnsubscriber = this.$store.subscribe(...)
          },
          beforeDestroy () {
          this.focusSearchUnsubscriber() // call the unsubscribe function
          }


          You'll note I've also used mounted instead of created. This is because your $refs won't be populated until your component is mounted so using the later lifecycle hook adds a bit of extra safety.






          share|improve this answer

























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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3














            When your component is unmounted / destroyed, the mutation subscription will live on in the store. This is why the this reference in your subscriber becomes undefined.



            What you need to do is remove the subscription when your component is destroyed. See https://vuex.vuejs.org/api/#subscribe...




            To stop subscribing, call the returned unsubscribe function.




            For example



            mounted () {
            // the name isn't really important and since this isn't a reactive property,
            // you don't need to have this defined in "data"
            this.focusSearchUnsubscriber = this.$store.subscribe(...)
            },
            beforeDestroy () {
            this.focusSearchUnsubscriber() // call the unsubscribe function
            }


            You'll note I've also used mounted instead of created. This is because your $refs won't be populated until your component is mounted so using the later lifecycle hook adds a bit of extra safety.






            share|improve this answer






























              3














              When your component is unmounted / destroyed, the mutation subscription will live on in the store. This is why the this reference in your subscriber becomes undefined.



              What you need to do is remove the subscription when your component is destroyed. See https://vuex.vuejs.org/api/#subscribe...




              To stop subscribing, call the returned unsubscribe function.




              For example



              mounted () {
              // the name isn't really important and since this isn't a reactive property,
              // you don't need to have this defined in "data"
              this.focusSearchUnsubscriber = this.$store.subscribe(...)
              },
              beforeDestroy () {
              this.focusSearchUnsubscriber() // call the unsubscribe function
              }


              You'll note I've also used mounted instead of created. This is because your $refs won't be populated until your component is mounted so using the later lifecycle hook adds a bit of extra safety.






              share|improve this answer




























                3












                3








                3







                When your component is unmounted / destroyed, the mutation subscription will live on in the store. This is why the this reference in your subscriber becomes undefined.



                What you need to do is remove the subscription when your component is destroyed. See https://vuex.vuejs.org/api/#subscribe...




                To stop subscribing, call the returned unsubscribe function.




                For example



                mounted () {
                // the name isn't really important and since this isn't a reactive property,
                // you don't need to have this defined in "data"
                this.focusSearchUnsubscriber = this.$store.subscribe(...)
                },
                beforeDestroy () {
                this.focusSearchUnsubscriber() // call the unsubscribe function
                }


                You'll note I've also used mounted instead of created. This is because your $refs won't be populated until your component is mounted so using the later lifecycle hook adds a bit of extra safety.






                share|improve this answer















                When your component is unmounted / destroyed, the mutation subscription will live on in the store. This is why the this reference in your subscriber becomes undefined.



                What you need to do is remove the subscription when your component is destroyed. See https://vuex.vuejs.org/api/#subscribe...




                To stop subscribing, call the returned unsubscribe function.




                For example



                mounted () {
                // the name isn't really important and since this isn't a reactive property,
                // you don't need to have this defined in "data"
                this.focusSearchUnsubscriber = this.$store.subscribe(...)
                },
                beforeDestroy () {
                this.focusSearchUnsubscriber() // call the unsubscribe function
                }


                You'll note I've also used mounted instead of created. This is because your $refs won't be populated until your component is mounted so using the later lifecycle hook adds a bit of extra safety.







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Jan 2 at 0:23









                Boussadjra Brahim

                8,1843733




                8,1843733










                answered Jan 2 at 0:17









                PhilPhil

                99.1k12145163




                99.1k12145163
































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