javascript - React js autofocus input field -


i created input, , want autofocus it.

when page loads, fake input div displayed , when user ckicks div real input focused. works fine. want autofocus , show keyboard.

i tried set autofocus , "trigger" focus on real input, on desktops works fine when test on mobile devices keyboard not appear.

i tried "trigger" click on fake input (div), , not work.

now when page loads looks this

should this

i don't know wrong.

here code:

import react, {component} 'react'; import proptypes 'prop-types'; import {field} 'redux-form'; import {rules} 'authcomponents/partials/validationrules'; import reactdom 'react-dom';  const renderfakeinputcontent = (that, type, meta) => {      // code not relevant issue         return content;     };  class reduxformpininput extends component {     renderfield = ({input, label, type, meta: {pristine, touched, error, warning, valid, dirty}}) => {          let fakeinputblurredclass = ' blurred';          let focusrealinput = () => {             this.textinput.focus(); // works fine mobile , desktop         };          let blurfake = () => {             this.fakeinput.classname = this.fakeinput.classname.replace(fakeinputblurredclass, '');         };          let simulatefocusonfake = () => {             this.fakeinput.classname += fakeinputblurredclass;         };          return (             <fieldset classname={"form-group "+ this.props.classname + ((error && dirty) ? ' pin-input-has-error' : "")}>                 <div ref={(fake) => { this.fakeinput = fake; }} classname="fake-pin-input no-margin"                     onclick={focusrealinput.bind(this)}                 >                     {renderfakeinputcontent(this, type, {pristine, touched, error, warning, valid, dirty})}                 </div>                 {dirty && error && <span classname="pin-input-error">{error}</span>}                 <div classname="pin-input-real-container">                     <input                     ref={(input) => { this.textinput = input && input.focus(); }}                     classname="pin-input-real"                     {...input}                     onfocus={simulatefocusonfake.bind(this)}                     onblur={blurfake.bind(this)}                     maxlength={this.props.maxlength}                     autocomplete="off"                     //autofocus={true}                     />                 </div>              </fieldset>         );     };      componentdidmount(){         let x = this.textinput;          // tried many combination of following code         x.focus();         x.blur();         x.select();         x.setselectionrange(0, x.value.length);     }      render() {          let validaterules = this.props.validate.map((rule)=>{             if(rules.hasownproperty(rule)){                 return rules[rule];             }         });          return (             <field name={this.props.name}                    type={this.props.type}                    component={this.renderfield}                    label={this.props.label}                    validate={validaterules}             />         )     } }   reduxformpininput.proptypes = {     classname: proptypes.string,     name: proptypes.string,     required: proptypes.bool,     validate: proptypes.array,     maxlength: proptypes.number, };  reduxformpininput.defaultprops = {     classname: '',     name: '',     validate: [],     required: true,     maxlength: 9999, };  export default reduxformpininput;


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer
Read more

jquery - Responsive Navbar with Sub Navbar -

good day, forgive me nav vocabulary not best. if question confusing apologize. i'm working on navigation bar needs centered on page @ 768px , above. items in nav open (or perhaps toggle) subnav lives directly below. these nav should appear centered on page. i have been able work through responsive portion of nav bar, having main items align vertically , sub nav menu of each item roll out below, , gave them indent separation. working well. however, issue not responsive side, behavior @ width greater 768px. happens toggling menu's sub navigation pushes other main items down page below sub nav. here's code: $(document).ready(function () { //stick in fixed 100% height behind navbar don't wrap $('#slide-nav.navbar-inverse').after($('<div class="inverse" id="navbar-height-col"></div>')); $('#slide-nav.navbar-default').after($('<div id="navbar-height-col"></d
Read more