public class SearchRecords {
    public boolean display{get;set;}
    public boolean disable{get;set;}
    public String AccId{get;set;}
    public string getstring{get;set;}
    public string selectedvalie{get;set;}
    public List<Account> accountlist {get;set;}
    public list<Contact> conList{get;set;}
    public list<Attachment> AttachmentList{get;set;}
    private integer totalRecs = 0;
    private integer OffsetSize = 0;
    private integer LimitSize=3;
    public  contact con{get;set;}
    public  Attachment Att{get;set;}
    public  string Body{get;set;}
    public string Subject{get;set;}
    public string selectAttachment{get;set;}
    public boolean Attc{get;set;}
    public boolean Docu{get;set;}
    public boolean SysFil{get;set;}
    public List<WrapperClass> listWrapper {get;set;}
    public List<WrapperClass> listWrapper1 {get;set;}
    public void searchRecord(){
        display=False;
        accountlist= new list<Account>();
        if(getstring!=null){
            accountlist= Database.query('select id,AccountNumber,name,Phone from Account where name like \'%'+getstring+'%\'');
        }
    } 
    public void newClick(){
        disable=false;
        LimitSize=3;
        OffsetSize=0;
        showContact();
    }
    public void showContact(){
        display=true;
        listWrapper = new List<WrapperClass>();
        List<Contact> conlist =[SELECT id,Title,Fax,Birthdate,Name,Account.Name,Phone,Email FROM Contact WHERE AccountId=:AccId LIMIT :LimitSize OFFSET :OffsetSize];
        if(conlist!=NULL){
            totalRecs = conlist.size();
            for(contact con:conlist)
            {
                listWrapper.add(new WrapperClass(con));
            }
        }
    }
    
    public void showContact1(){
        string id = ApexPages.currentPage().getParameters().get('id');
        string[] ids = id.split(',');
        
        display=true;
        listWrapper1 = new List<WrapperClass>();
        List<Contact> conlist =[SELECT id,Title,Fax,Birthdate,Name,Account.Name,Phone,Email FROM Contact WHERE ID IN :ids LIMIT :LimitSize OFFSET :OffsetSize];
        if(conlist!=NULL){
            totalRecs = conlist.size();
            for(contact con:conlist)
            {
                listWrapper1.add(new WrapperClass(con));
            }
        }
        
    }
    
    
    public pageReference PrintDetail(){
        listWrapper1=new list<WrapperClass>();
        for(WrapperClass wr: listWrapper){
            if(wr.checked==true)
                listWrapper1.add(wr);
        }
        pageReference acctPage = new pageReference('/Apex/printContactDetail');
        return acctPage;
    }
 
    public pageReference SendEmail(){
        listWrapper1=new list<WrapperClass>();
          String str='';
        for(WrapperClass wr: listWrapper){
            if(wr.checked==true){
                listWrapper1.add(wr);
            str+=wr.con.id+',';
            }
            system.debug('====>listWrapper1'+listWrapper1);
        }
        str=str.removeEnd(',');
        pageReference EmailPage = new pageReference('/Apex/EmailDetail?id='+str);
        emailPage.setRedirect(true);
            return EmailPage;
    }
    public pageReference AddFile(){
        String str=ApexPages.currentPage().getParameters().get('id');
        PageReference acctPage = new pageReference('/Apex/AttachmentPage?id='+str);
        return acctPage;
    }
    set<id> contactId=new set<Id>();
    
    public void Attachment(){
       String str1=ApexPages.currentPage().getParameters().get('id');
        system.debug('---line81'+str1);
        for(string st:str1.split(',')){
            contactid.add(st);
        }
       AttachmentList=[select Id,Name,Body,BodyLength,ContentType,ParentId from Attachment where ParentId IN:contactId];
        system.debug('AttachmentList'+AttachmentList);
    }
    public void HideShow(){
        system.debug('selectAttachment'+selectAttachment);
        if(selectAttachment=='Attachment'){
            Attc=True;
            Docu=False;
            SysFil=False;
            Attachment();
        }
        else if(selectAttachment=='Document'){
            Attc=False;
            Docu=True;
            SysFil=False;
        }
        else if(selectAttachment=='System File'){
            Attc=False;
            Docu=False;
            SysFil=True;
        }
    }
    public pageReference Send(){
        return null;
    }
    public pageReference Cancel(){
        return null;
    }
    public void FirstPage(){
        disable=false;
        OffsetSize = 0;
        showContact();
    }
    public void previous(){
        disable=false;
        OffsetSize = OffsetSize - LimitSize;
        showContact();
    }
    public void next(){
        OffsetSize = OffsetSize + LimitSize;
        showContact();
    }
    public void LastPage(){
        disable=true;
        OffsetSize = totalrecs - math.mod(totalRecs,LimitSize);
        showContact();
        
    }
    public boolean getprev(){
        if(OffsetSize == 0)
            return true;
        else
            return false;
        
    }
    public boolean getnxt(){
        if((OffsetSize + LimitSize) > totalRecs)
            return true;
        else
            return false;
    }

    public pageReference Save(){
            return null;
        }
    public class WrapperClass {
        public Boolean checked {get;set;}
        public contact con {get;set;}
        public WrapperClass(contact con) {
            this.con=con;
            checked=false;
        }
    }
}

<apex:page controller="SearchRecords"  showHeader="false" sidebar="false" >
    <apex:form id="frm">
        <apex:pageblock >
            <apex:pageBlockSection title="Search Account Records" columns="1">
                Enter Name<apex:inputText value="{!getstring}" id="theTextInput"/>
                <apex:commandButton action="{!searchRecord}" value="Search" id="theSearch" reRender="frm"/>
            </apex:pageBlockSection>
            <apex:pageBlockSection title="Account Detail" id="pb">
                <apex:pageBlocktable value="{!accountlist}" var="acc">
                    <apex:column >
                        <input type="radio" name="group1" reRender="{!display}" />
                        <apex:actionSupport event="onclick" action="{!newClick}" reRender="conSection"  >
                            <apex:param assignTo="{!AccId}" name="accname" value="{!acc.id}"/>
                        </apex:actionSupport>
                    </apex:column>
                    <apex:column value="{!acc.Name}"/>
                    <apex:column value="{!acc.Phone}"/>
                </apex:pageBlocktable>
            </apex:pageBlockSection>
            
            <apex:outputPanel id="conSection">
                <apex:pageBlockSection title="Related Contact" id="conpgblk" rendered="{!display}" >
                    <apex:outputPanel rendered="{!listWrapper.size != 0}">
                        <div align="center" >
                            <apex:commandButton value="Send Email" action="{!SendEmail}"/>
                            <apex:commandButton value="Print Detail" action="{!PrintDetail}"/>
                        </div>
                        <apex:pageBlockTable value="{!listWrapper}" id="pbt1" var="wrap">
                            <apex:column headerValue="Select">
                            <apex:inputCheckbox value="{!wrap.checked}" id="inputBox"/>
                            </apex:column>
                            <apex:column value="{!wrap.con.Name}"/>
                            <apex:column value="{!wrap.con.Phone}"/>
                            <apex:column value="{!wrap.con.Email}"/>
                            <apex:column value="{!wrap.con.Account.Name}"/>
                            <apex:column value="{!wrap.con.AccountId}"/>
                            <apex:column value="{!wrap.con.Id}"/>
                        </apex:pageBlockTable>
                    <apex:commandButton value="First Page" rerender="conpgblk" action="{!FirstPage}" disabled="{!prev}"/>
                    <apex:commandButton value="Previous" rerender="conpgblk" action="{!previous}" disabled="{!prev}"/>
                    <apex:commandButton value="Next" rerender="conpgblk" action="{!next}" disabled=""/>
                    <apex:commandButton value="Last Page" rerender="conpgblk" action="{!LastPage}" disabled="{!disable}"/> 
                    </apex:outputPanel>
                    <apex:outputPanel rendered="{!listWrapper.size == 0}">
                        <b> NO RELATED CONTACTS FOR THIS ACCOUNT.</b> 
                    </apex:outputPanel>
                </apex:pageBlockSection>
            </apex:outputPanel>
        </apex:pageblock>
    </apex:form>
</apex:page>

<apex:page controller="SearchRecords" action="{!showContact1}" showHeader="false" sidebar="false">
    <script>
        function openPopup(){
             window.open('/apex/AttachmentPage','mywindow','width=600,height=400');
        }    
    </script>
    <apex:form >
        <apex:pageBlock title="Send Email To Selected Contacts">
            <div align="Middle">
                <apex:commandButton value="Send" action="{!Send}" />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                <apex:commandButton value="Add File" onclick="openPopup();return false;"/> &nbsp;&nbsp;&nbsp;&nbsp;
                <apex:commandButton value="Cancel" action="{!Cancel}"/>&nbsp;&nbsp;&nbsp;&nbsp;
            </div>
            <apex:pageBlockSection title="Email" columns="1">
                <apex:repeat value="{!listWrapper1}" var="wrap">
                    To:<apex:outputfield value="{!wrap.con.Name}" />
                </apex:repeat>
                <div class = "requiredInput">
                    Subject<div class = "requiredBlock"></div>
                    <apex:inputText title="Subject" required="true"/>
                </div>
                <apex:inputtextarea label="Body" richtext="true" value="{!Body}" cols="50" rows="15"/>
            </apex:pageBlockSection>
        </apex:pageBlock>
    </apex:form>
</apex:page>