From e48f541c6148497411c9791dbd18ccb1124384bb Mon Sep 17 00:00:00 2001
From: Dominique Fournier <dominique@fournier38.fr>
Date: Wed, 23 Oct 2019 12:26:10 +0000
Subject: [PATCH] form : Add Bootstrap4 support (change formThemplate to
 select). Bootstrap 3 always the default one

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@5614 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
---
 form.php | 831 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 819 insertions(+), 12 deletions(-)

diff --git a/form.php b/form.php
index ba6d0b4..c55d1c8 100644
--- a/form.php
+++ b/form.php
@@ -57,6 +57,10 @@ class form
     */
   private $loggingBasemsg = "";
 
+  /** Form template (Bootstrap3 by default)
+    */
+  private $formTemplate = "Bootstrap3";
+
   /** Create a form
     * @param string|null $formName The form name
     */
@@ -143,6 +147,18 @@ class form
     $this->loggingCallable = $loggingCallable;
     $this->loggingBasemsg = $loggingBasemsg;
   }
+
+  /** Set the Form Templating to use.
+    * Can be : Bootstrap3 (and later Bootstrap4, Bulma)
+    */
+  public function formTemplate ($formTemplate)
+  {
+    if (! in_array ($formTemplate,
+      array ("Bootstrap3", "Bootstrap4")))
+      throw new \Exception ("Unknown formTemplate provided", 500);
+    $this->formTemplate = $formTemplate;
+    return $this;
+  }
   // }}}
 
   /** The private method to log if the $this->loggingCallable is defined
@@ -352,6 +368,7 @@ class form
       }
       $field->titlewidth = $this->titlewidth;
       $field->fieldwidth = $this->fieldwidth;
+      $field->formTemplate = $this->formTemplate;
       $res .= $field->display ();
     }
 
@@ -654,7 +671,7 @@ class formfield
   public function display ()
   // {{{
   {
-    $func = "field".$this->type;
+    $func = "field".$this->formTemplate.$this->type;
     return $this->$func ();
   }
   // }}}
@@ -752,9 +769,13 @@ class formfield
   }
   // }}}
 
+  //////////////////////////
+  ////    BOOTSTRAP3    ////
+  //////////////////////////
+  // {{{
   /** Return the checkbox defined
     */
-  public function fieldcheckbox ()
+  private function fieldBootstrap3checkbox ()
   // {{{
   {
     // No $this->multiple, $this->rows $this->cols $this->placeholder,
@@ -769,7 +790,7 @@ class formfield
       $res .= "    <label class='col-sm-$this->titlewidth control-label' for='".
               $this->formName."_";
       $res .= htmlspecialchars ($this->name, ENT_QUOTES);
-      if (count ($this->titles) > 1)
+      if (is_array ($this->titles) && count ($this->titles) > 1)
         $res .= "_0";
       $res .= "'";
       if (isset ($this->hidden) && $this->hidden !== FALSE)
@@ -783,7 +804,7 @@ class formfield
       $res .= "</label>\n";
     }
     $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
-    if (count ($this->titles) === 0)
+    if (! is_array ($this->titles) || count ($this->titles) === 0)
       $this->titles = array ("");
     foreach ($this->titles as $key=>$val)
     {
@@ -880,7 +901,7 @@ class formfield
 
   /** Return the hidden field defined
     */
-  public function fieldhidden ()
+  private function fieldBootstrap3hidden ()
   // {{{
   {
     $res = "";
@@ -902,7 +923,7 @@ class formfield
 
   /** Return the password field defined
     */
-  public function fieldpassword ()
+  private function fieldBootstrap3password ()
   // {{{
   {
     $res = "";
@@ -976,7 +997,7 @@ class formfield
 
   /** Return the radio field defined
     */
-  public function fieldradio ()
+  private function fieldBootstrap3radio ()
   // {{{
   {
     $res = "";
@@ -1060,7 +1081,7 @@ class formfield
 
   /** Return the checkbox defined
     */
-  public function fieldselect ()
+  private function fieldBootstrap3select ()
   // {{{
   {
     // No $this->placeholder $this->maxlength
@@ -1186,7 +1207,7 @@ class formfield
 
   /** Return the submit defined
     */
-  public function fieldsubmit ()
+  private function fieldBootstrap3submit ()
   // {{{
   {
     $res = "";
@@ -1229,7 +1250,7 @@ class formfield
 
   /** Return the textarea defined
     */
-  public function fieldtextarea ()
+  private function fieldBootstrap3textarea ()
   // {{{
   {
     $res = "";
@@ -1306,7 +1327,7 @@ class formfield
 
   /** Return the text defined
     */
-  public function fieldtext ()
+  private function fieldBootstrap3text ()
   // {{{
   {
     $res = "";
@@ -1380,7 +1401,7 @@ class formfield
 
   /** Return the file defined
     */
-  public function fieldfile ()
+  private function fieldBootstrap3file ()
   // {{{
   {
     $res = "";
@@ -1464,4 +1485,790 @@ class formfield
     return $res;
   }
   // }}}
+  // }}}
+
+  //////////////////////////
+  ////    BOOTSTRAP4    ////
+  //////////////////////////
+  // {{{
+  /** Return the checkbox defined
+    */
+  private function fieldBootstrap4checkbox ()
+  // {{{
+  {
+    // No $this->multiple, $this->rows $this->cols $this->placeholder,
+    //    $this->maxlength
+    $res = "";
+    $res .= "<div class='form-group";
+    if (isset ($this->errors))
+      $res .= " has-".$this->errors[0];
+    if ($this->titlewidth > 0)
+      $res .= " row";
+    $res .= "'>\n";
+    if ($this->label !== "")
+    {
+      $res .= "    <label";
+      if ($this->titlewidth > 0)
+        $res .= " class='col-sm-$this->titlewidth col-form-label'";
+      $res .= " for='". $this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES);
+      if (is_array ($this->titles) && count ($this->titles) > 1)
+        $res .= "_0";
+      $res .= "'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= ">";
+      $res .= htmlspecialchars ($this->label);
+      if (isset ($this->mandatory) && $this->mandatory !== FALSE)
+        $res .= " <span style='color:red'>*</span>";
+      else
+        $res .= "  ";
+      $res .= "</label>\n";
+    }
+    $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
+    if (! is_array ($this->titles) || count ($this->titles) === 0)
+      $this->titles = array ("");
+    foreach ($this->titles as $key=>$val)
+    {
+      $res .= "      <div class='form-check'>\n";
+      $res .= "        <input type='hidden'";
+      $res .= " name='$this->formName"."[";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]";
+      if (count ($this->titles) > 1)
+        $res .= "[$key]";
+      $res .= "' value='unset'";
+      $res .= "/>\n";
+      $res .= "        <input type='checkbox'";
+      $res .= " name='$this->formName"."[";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]";
+      if (count ($this->titles) > 1)
+        $res .= "[$key]";
+      $res .= "' id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES);
+      if (count ($this->titles) > 1)
+        $res .= "_$key";
+      $res .= "'";
+      if (isset ($this->readonly) && $this->readonly !== FALSE)
+        $res .= " disabled='disabled'";
+      // Do not check by default !
+      // Check is enable if not null and not false and not "unset" and not ""
+      if (count ($this->titles) === 1)
+      {
+        if (isset ($this->values) &&
+            $this->values !== null &&
+            $this->values !== false &&
+            $this->values !== "unset" &&
+            $this->values !== "")
+          $res .= " checked='checked'";
+        elseif (isset ($this->defaults) &&
+                $this->defaults !== null &&
+                $this->defaults !== false &&
+                $this->defaults !== "unset" &&
+                $this->defaults !== "")
+          $res .= " checked='checked'";
+      }
+      else
+      {
+        if (isset ($this->values[$key]))
+        {
+          if ($this->values[$key] !== null &&
+              $this->values[$key] !== false &&
+              $this->values[$key] !== "unset" &&
+              $this->values[$key] !== "")
+            $res .= " checked='checked'";
+        }
+        elseif (isset ($this->defaults[$key]))
+        {
+          if ($this->defaults[$key] !== null &&
+              $this->defaults[$key] !== false &&
+              $this->defaults[$key] !== "unset" &&
+              $this->defaults[$key] !== "")
+            $res .= " checked='checked'";
+        }
+      }
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= " class='form-check-input";
+      if (isset ($this->errors))
+      {
+        $res .= " is-invalid";
+      }
+      $res .= "'"; 
+      if (isset ($this->help))
+      {
+        $res .= " aria-describedby='".$this->formName."_";
+        $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'";
+      }
+      $res .= "/>\n";
+      $res .= "        <label for='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_";
+      if (count ($this->titles) > 1)
+        $res .= "$key";
+      $res .= "' class ='form-check-label'";
+      $res .= ">";
+      $res .= "$val</label>\n";
+      if (isset ($this->errors) && $key === count ($this->titles) - 1)
+      {
+        $res .= "      <div class='invalid-feedback'>";
+        $res .= htmlspecialchars ($this->errors[1]);
+        $res .= "</div>\n";
+      }
+      $res .= "      </div>\n";
+    }
+
+    if (isset ($this->help))
+    {
+      $res .= "      <small class='form-text text-muted' ";
+      $res .= "id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'>";
+      $res .= $this->help;
+      $res .= "</small>\n";
+    }
+    $res .= "    </div>\n"; // End controls
+    $res .= "  </div>\n"; // End form-group
+    return $res;
+  }
+  // }}}
+
+  /** Return the hidden field defined
+    */
+  private function fieldBootstrap4hidden ()
+  // {{{
+  {
+    $res = "";
+    // No $this->label, $this->multiple, $this->readonly, $this->hidden,
+    // $this->rows $this->cols $this->placeholder $this->maxlength
+    $res .= "<input type='hidden'";
+    $res .= " name='$this->formName"."[";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+    $res .= " id='$this->formName"."_";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+    if (isset ($this->values))
+      $res .= " value='".htmlspecialchars ($this->values)."'";
+    else
+      $res .= " value='".htmlspecialchars ($this->defaults)."'";
+    $res .= "/>\n";
+    return $res;
+  }
+  // }}}
+
+  /** Return the password field defined
+    */
+  private function fieldBootstrap4password ()
+  // {{{
+  {
+    $res = "";
+    // No $this->multiple, $this->rows $this->cols
+    $res .= "<div class='form-group";
+    if (isset ($this->errors))
+      $res .= " has-".$this->errors[0];
+    if ($this->titlewidth > 0)
+      $res .= " row";
+    $res .= "'>\n";
+    if ($this->label !== "")
+    {
+      $res .= "    <label";
+      if ($this->titlewidth > 0)
+        $res .= " class='col-sm-$this->titlewidth col-form-label'";
+      $res .= " for='". $this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= ">";
+      $res .= htmlspecialchars ($this->label);
+      if (isset ($this->mandatory) && $this->mandatory !== FALSE)
+        $res .= " <span style='color:red'>*</span>";
+      else
+        $res .= "  ";
+      $res .= "</label>\n";
+    }
+    $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
+    $res .= "      <input type='password'";
+    $res .= " name='$this->formName"."[";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+    $res .= " id='$this->formName"."_";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+    if (isset ($this->values))
+      $res .= " value='".htmlspecialchars ($this->values,
+                                           ENT_QUOTES)."'";
+    else
+      $res .= " value='".htmlspecialchars ($this->defaults, ENT_QUOTES).
+              "'";
+    if (isset ($this->readonly) && $this->readonly !== FALSE)
+      $res .= " readonly='readonly'";
+    $res .= " class='form-control";
+    if (isset ($this->errors))
+      $res .= " is-invalid";
+    $res .= "'"; 
+    if (isset ($this->hidden) && $this->hidden !== FALSE)
+      $res .= " style='display:none'";
+    if (isset ($this->cols))
+      $res .= " size='".$this->cols."'";
+    if (isset ($this->maxlength))
+      $res .= " maxlength='".$this->maxlength."'";
+    if (isset ($this->help))
+    {
+      $res .= " aria-describedby='".$this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'";
+    }
+    if (isset ($this->placeholder) && $this->placeholder !== FALSE)
+      $res .= " placeholder='".htmlentities ($this->placeholder, ENT_QUOTES).
+              "'";
+    $res .= "/>\n";
+    if (isset ($this->errors))
+    {
+      $res .= "      <div class='invalid-feedback'>";
+      $res .= htmlspecialchars ($this->errors[1]);
+      $res .= "</div>\n";
+    }
+    if (isset ($this->help))
+    {
+      $res .= "      <small class='form-text text-muted' ";
+      $res .= "id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'>";
+      $res .= $this->help;
+      $res .= "</small>\n";
+    }
+    $res .= "    </div>\n"; // End controls
+    $res .= "  </div>\n"; // End form-group
+    return $res;
+  }
+  // }}}
+
+  /** Return the radio field defined
+    */
+  private function fieldBootstrap4radio ()
+  // {{{
+  {
+    $res = "";
+    // No $this->multiple, $this->rows $this->cols $this->placeholder
+    // $this->maxlength
+    $res .= "<div class='form-group";
+    if (isset ($this->errors))
+      $res .= " has-".$this->errors[0];
+    if ($this->titlewidth > 0)
+      $res .= " row";
+    $res .= "'>\n";
+    if ($this->label !== "")
+    {
+      $res .= "    <label";
+      if ($this->titlewidth > 0)
+        $res .= " class='col-sm-$this->titlewidth col-form-label'";
+      $res .= " for='". $this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_0'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= ">";
+      $res .= htmlspecialchars ($this->label);
+      if (isset ($this->mandatory) && $this->mandatory !== FALSE)
+        $res .= " <span style='color:red'>*</span>";
+      else
+        $res .= "  ";
+      $res .= "</label>\n";
+    }
+    $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
+    if (is_string ($this->defaults))
+      $this->defaults = array ($this->defaults);
+    $res .= "      <input type='hidden'";
+    $res .= " name='$this->formName"."[";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+    $res .= " value='unset'";
+    $res .= "/>\n";
+    foreach ($this->titles as $key=>$val)
+    {
+      $res .= "      <div class='form-check'>\n";
+      $res .= "         <input type='radio'";
+      $res .= " name='$this->formName"."[";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+      $res .= " id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_$key'";
+      $res .= " value='".htmlspecialchars ($val, ENT_QUOTES)."'";
+      if (isset ($this->readonly) && $this->readonly !== FALSE)
+        $res .= " readonly='readonly'";
+      if (isset ($this->values) &&
+          $this->values === $val)
+        $res .= " checked='checked'";
+      elseif (isset ($this->defaults[0]) &&
+              $this->defaults[0] === $val)
+        $res .= " checked='checked'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= " class='form-check-input";
+      if (isset ($this->errors))
+        $res .= " is-invalid";
+      $res .= "'"; 
+      if (isset ($this->help))
+      {
+        $res .= " aria-describedby='".$this->formName."_";
+        $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'";
+      }
+      $res .= "/>\n";
+      $res .= "        <label class='form-check-label'>";
+      $res .= "$val";
+      $res .= "</label>\n"; // End label radio
+      if (isset ($this->errors) && $key === count ($this->titles) - 1)
+      {
+        $res .= "      <div class='invalid-feedback'>";
+        $res .= htmlspecialchars ($this->errors[1]);
+        $res .= "</div>\n";
+      }
+      $res .= "     </div>\n";
+    }
+    if (isset ($this->help))
+    {
+      $res .= "      <small class='form-text text-muted' ";
+      $res .= "id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'>";
+      $res .= $this->help;
+      $res .= "</small>\n";
+    }
+    $res .= "    </div>\n"; // End controls
+    $res .= "  </div>\n"; // End form-group
+    return $res;
+  }
+  // }}}
+
+  /** Return the checkbox defined
+    */
+  private function fieldBootstrap4select ()
+  // {{{
+  {
+    // No $this->placeholder $this->maxlength
+    $res = "";
+    // $values->$this, $this->cols
+    $res .= "<div class='form-group";
+    if (isset ($this->errors))
+      $res .= " has-".$this->errors[0];
+    if ($this->titlewidth > 0)
+      $res .= " row";
+    $res .= "'>\n";
+    if ($this->label !== "")
+    {
+      $res .= "    <label";
+      if ($this->titlewidth > 0)
+        $res .= " class='col-sm-$this->titlewidth col-form-label'";
+      $res .= " for='". $this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= ">";
+      $res .= htmlspecialchars ($this->label);
+      if (isset ($this->mandatory) && $this->mandatory !== FALSE)
+        $res .= " <span style='color:red'>*</span>";
+      else
+        $res .= "  ";
+      $res .= "</label>\n";
+    }
+    $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
+    if (isset ($this->defaults) && is_array ($this->defaults))
+    {
+      if (isset ($this->readonly) && $this->readonly !== FALSE)
+      {
+        foreach ($this->defaults as $key=>$val)
+        {
+          $res .= "      <input type='hidden'";
+          if (isset ($this->multiple) && $this->multiple !== FALSE)
+          {
+            $res .= " name='$this->formName"."[";
+            $res .= htmlspecialchars ($this->name, ENT_QUOTES)."][".
+                    htmlspecialchars ($key, ENT_QUOTES)."]'";
+          }
+          else
+          {
+            $res .= " name='$this->formName"."[";
+            $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+          }
+          $res .= " value='";
+          $res .= htmlspecialchars ($key, ENT_QUOTES)."'";
+          $res .= "/>\n";
+        }
+      }
+
+      $res .= "      <select";
+      $res .= " name='$this->formName"."[";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]";
+      if (isset ($this->multiple) && $this->multiple !== FALSE)
+        $res .= "[]";
+      $res .= "'";
+      $res .= " id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+      if (isset ($this->multiple) && $this->multiple !== FALSE)
+        $res .= " multiple='multiple'";
+      if (isset ($this->readonly) && $this->readonly !== FALSE)
+        $res .= " disabled='disabled'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= " class='form-control";
+      if (isset ($this->errors))
+        $res .= " is-invalid";
+      $res .= "'"; 
+      if (isset ($this->rows))
+        $res .= " size='".$this->rows."'";
+      if (isset ($this->help))
+      {
+        $res .= " aria-describedby='".$this->formName."_";
+        $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'";
+      }
+      $res .= ">\n";
+      foreach ($this->defaults as $key=>$val)
+      {
+        if (! is_string ($val))
+        {
+          throw new \Exception ("Value as defaut for $this->name::$key is not ".
+            "a string (".gettype ($val).")");
+        }
+        $res .= "        <option value='";
+        $res .= htmlspecialchars ($key, ENT_QUOTES)."'";
+        if (isset ($this->values) &&
+            is_string ($this->values) &&
+            $this->values == $key)
+          $res .= " selected='selected'";
+        elseif (isset ($this->values) &&
+            is_integer ($this->values) &&
+            $this->values == $key)
+          $res .= " selected='selected'";
+        elseif (isset ($this->values) &&
+                is_array ($this->values) &&
+                in_array ($key, $this->values))
+          $res .= " selected='selected'";
+        $res .= ">";
+        $res .= htmlspecialchars ($val);
+        $res .= "</option>\n";
+      }
+
+      $res .= "      </select>\n";
+      if (isset ($this->errors))
+      {
+        $res .= "      <div class='invalid-feedback'>";
+        $res .= htmlspecialchars ($this->errors[1]);
+        $res .= "</div>\n";
+      }
+      if (isset ($this->help))
+      {
+        $res .= "      <small class='form-text text-muted' ";
+        $res .= "id='$this->formName"."_";
+        $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'>";
+        $res .= $this->help;
+        $res .= "</small>\n";
+      }
+    }
+    else
+    {
+      $res .= dgettext ("domframework", "No value provided");
+    }
+
+    $res .= "    </div>\n"; // End controls
+    $res .= "  </div>\n"; // End form-group
+    return $res;
+  }
+  // }}}
+
+  /** Return the submit defined
+    */
+  private function fieldBootstrap4submit ()
+  // {{{
+  {
+    $res = "";
+    // No $this->label, $this->multiple, $this->error, $this->rows,
+    // $this->cols $this->placeholder $this->maxlength
+    $res .= "<div class='form-group'>\n";
+    $res .= "    <div class='col-sm-".($this->titlewidth+$this->fieldwidth).
+            "'>\n";
+    $res .= "      <input type='submit'";
+    $res .= " name='$this->formName"."[";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+    $res .= " id='$this->formName"."_";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+    if (isset ($this->readonly) && $this->readonly !== FALSE)
+      $res .= " disabled='disabled'";
+    if (isset ($this->defaults))
+      $res .= " value='".htmlspecialchars ($this->defaults, ENT_QUOTES).
+              "'";
+    elseif (isset ($this->label))
+      $res .= " value='".htmlspecialchars ($this->label, ENT_QUOTES)."'";
+    $res .= " class='form-control btn-primary'";
+    if (isset ($this->hidden) && $this->hidden !== FALSE)
+      $res .= " style='display:none'";
+    // Block the submit button 10s. The user can not double click on it and
+    // submit two times the POST to the server
+    // Re-enable after 15s, if there is a problem with the server
+    // This code is needed by Chrome and Edge which allow multiple submission of
+    // a form
+    $res .= " onclick='submit=this ; ";
+    $res .= " setTimeout(function() {";
+    $res .= "  submit.setAttribute(\"disabled\", \"disabled\");";
+    $res .= " }, 1);";
+    $res .= "'";
+    $res .= "/>\n";
+    $res .= "    </div>\n";
+    $res .= "  </div>\n";
+    return $res;
+  }
+  // }}}
+
+  /** Return the textarea defined
+    */
+  private function fieldBootstrap4textarea ()
+  // {{{
+  {
+    $res = "";
+    // No $this->multiple, $this->titles
+    $res .= "<div class='form-group";
+    if (isset ($this->errors))
+      $res .= " has-".$this->errors[0];
+    if ($this->titlewidth > 0)
+      $res .= " row";
+    $res .= "'>\n";
+    if ($this->label !== "")
+    {
+      $res .= "    <label";
+      if ($this->titlewidth > 0)
+        $res .= " class='col-sm-$this->titlewidth col-form-label'";
+      $res .= " for='". $this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= ">";
+      $res .= htmlspecialchars ($this->label);
+      if (isset ($this->mandatory) && $this->mandatory !== FALSE)
+        $res .= " <span style='color:red'>*</span>";
+      else
+        $res .= "  ";
+      $res .= "</label>\n";
+    }
+    $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
+    $res .= "      <textarea";
+    $res .= " name='$this->formName"."[";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+    $res .= " id='$this->formName"."_";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+    if (isset ($this->readonly) && $this->readonly !== FALSE)
+      $res .= " readonly='readonly'";
+    $res .= " class='form-control";
+    if (isset ($this->errors))
+      $res .= " is-invalid";
+    $res .= "'"; 
+    if (isset ($this->hidden) && $this->hidden !== FALSE)
+      $res .= " style='display:none'";
+    if (!isset ($this->cols))
+      $this->cols = 20;
+    $res .= " cols='".$this->cols."'";
+    if (!isset ($this->rows))
+      $this->rows = 4;
+    $res .= " rows='".$this->rows."'";
+    if (isset ($this->maxlength))
+      $res .= " maxlength='".$this->maxlength."'";
+    if (isset ($this->help))
+    {
+      $res .= " aria-describedby='".$this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'";
+    }
+    if (isset ($this->placeholder) && $this->placeholder !== FALSE)
+      $res .= " placeholder='".htmlentities ($this->placeholder, ENT_QUOTES).
+              "'";
+    $res .= ">";
+    if (isset ($this->values))
+      $res .= htmlspecialchars ($this->values, ENT_QUOTES);
+    else
+      $res .= htmlspecialchars ($this->defaults, ENT_QUOTES);
+    $res .= "</textarea>\n";
+    if (isset ($this->errors))
+    {
+      $res .= "      <div class='invalid-feedback'>";
+      $res .= htmlspecialchars ($this->errors[1]);
+      $res .= "</div>\n";
+    }
+    if (isset ($this->help))
+    {
+      $res .= "      <small class='form-text text-muted' ";
+      $res .= "id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'>";
+      $res .= $this->help;
+      $res .= "</small>\n";
+    }
+    $res .= "    </div>\n"; // End controls
+    $res .= "  </div>\n"; // End form-group
+    return $res;
+  }
+  // }}}
+
+  /** Return the text defined
+    */
+  private function fieldBootstrap4text ()
+  // {{{
+  {
+    $res = "";
+    // No $this->multiple, $this->titles, $this->rows, $this->cols
+    $res .= "<div class='form-group";
+    if (isset ($this->errors))
+      $res .= " has-".$this->errors[0];
+    if ($this->titlewidth > 0)
+      $res .= " row";
+    $res .= "'>\n";
+    if ($this->label !== "")
+    {
+      $res .= "    <label";
+      if ($this->titlewidth > 0)
+        $res .= " class='col-sm-$this->titlewidth col-form-label'";
+      $res .= " for='".  $this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= ">";
+      $res .= htmlspecialchars ($this->label);
+      if (isset ($this->mandatory) && $this->mandatory !== FALSE)
+        $res .= " <span style='color:red'>*</span>";
+      else
+        $res .= " ";
+      $res .= "</label>\n";
+    }
+    $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
+    $res .= "      <input type='text'";
+    $res .= " name='$this->formName"."[";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]'";
+    $res .= " id='$this->formName"."_";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+    if (isset ($this->values))
+      $res .= " value='".htmlspecialchars ($this->values,
+                                           ENT_QUOTES)."'";
+    else
+      $res .= " value='".htmlspecialchars ($this->defaults, ENT_QUOTES).
+              "'";
+    if (isset ($this->readonly) && $this->readonly !== FALSE)
+      $res .= " readonly='readonly'";
+    $res .= " class='form-control";
+    if (isset ($this->errors))
+      $res .= " is-invalid";
+    $res .= "'"; 
+    if (isset ($this->hidden) && $this->hidden !== FALSE)
+      $res .= " style='display:none'";
+    if (isset ($this->cols))
+      $res .= " size='".$this->cols."'";
+    if (isset ($this->maxlength))
+      $res .= " maxlength='".$this->maxlength."'";
+    if (isset ($this->help))
+    {
+      $res .= " aria-describedby='".$this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'";
+    }
+    if (isset ($this->placeholder) && $this->placeholder !== FALSE)
+      $res .= " placeholder='".htmlentities ($this->placeholder, ENT_QUOTES).
+              "'";
+    $res .= "/>\n";
+    if (isset ($this->errors))
+    {
+      $res .= "      <div class='invalid-feedback'>";
+      $res .= htmlspecialchars ($this->errors[1]);
+      $res .= "</div>\n";
+    }
+    if (isset ($this->help))
+    {
+      $res .= "      <small class='form-text text-muted' ";
+      $res .= "id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'>";
+      $res .= $this->help;
+      $res .= "</small>\n";
+    }
+    $res .= "    </div>\n"; // End controls
+    $res .= "  </div>\n"; // End form-group
+    return $res;
+  }
+  // }}}
+
+  /** Return the file defined
+    */
+  private function fieldBootstrap4file ()
+  // {{{
+  {
+    $res = "";
+    // No $this->multiple, $this->titles, $this->rows, $this->cols
+    $res .= "<div class='form-group";
+    if (isset ($this->errors))
+      $res .= " has-".$this->errors[0];
+    if ($this->titlewidth > 0)
+      $res .= " row";
+    $res .= "'>\n";
+    if ($this->label !== "")
+    {
+      $res .= "    <label";
+      if ($this->titlewidth > 0)
+        $res .= " class='col-sm-$this->titlewidth col-form-label'";
+      $res .= " for='". $this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+      if (isset ($this->hidden) && $this->hidden !== FALSE)
+        $res .= " style='display:none'";
+      $res .= ">";
+      $res .= htmlspecialchars ($this->label);
+      if (isset ($this->mandatory) && $this->mandatory !== FALSE)
+        $res .= " <span style='color:red'>*</span>";
+      else
+        $res .= " ";
+      $res .= "</label>\n";
+    }
+    $res .= "    <div class='col-sm-$this->fieldwidth'>\n";
+    if (isset ($this->defaults))
+    {
+      $res .= "    <label class='btn btn-default col-sm-$this->fieldwidth'>\n";
+      $res .= htmlspecialchars ($this->defaults, ENT_QUOTES);
+    }
+    $res .= "      <input type='file'";
+    $res .= " name='$this->formName"."[";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."]";
+    if (isset ($this->multiple) && $this->multiple !== false)
+      $res .= "[]";
+    $res .= "'";
+    $res .= " id='$this->formName"."_";
+    $res .= htmlspecialchars ($this->name, ENT_QUOTES)."'";
+    if (isset ($this->values))
+      $res .= " value='".htmlspecialchars ($this->values,
+                                           ENT_QUOTES)."'";
+    else
+      $res .= " value='".htmlspecialchars ($this->defaults, ENT_QUOTES).
+              "'";
+    if (isset ($this->readonly) && $this->readonly !== FALSE)
+      $res .= " readonly='readonly'";
+    $res .= " class='form-control";
+    if (isset ($this->errors))
+      $res .= " is-invalid";
+    $res .= "'"; 
+    if (isset ($this->hidden) && $this->hidden !== FALSE)
+      $res .= " style='display:none'";
+    if (isset ($this->cols))
+      $res .= " size='".$this->cols."'";
+    if (isset ($this->maxlength))
+      $res .= " maxlength='".$this->maxlength."'";
+    if (isset ($this->help))
+    {
+      $res .= " aria-describedby='".$this->formName."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'";
+    }
+    if (isset ($this->placeholder) && $this->placeholder !== FALSE)
+      $res .= " placeholder='".htmlentities ($this->placeholder, ENT_QUOTES).
+              "'";
+    if (isset ($this->multiple) && $this->multiple !== false)
+      $res .= " multiple='multiple'";
+    $res .= "/>\n";
+    if (isset ($this->defaults))
+      $res .= "    </label>\n"; // End labels
+    if (isset ($this->errors))
+    {
+      $res .= "      <div class='invalid-feedback'>";
+      $res .= htmlspecialchars ($this->errors[1]);
+      $res .= "</div>\n";
+    }
+    if (isset ($this->help))
+    {
+      $res .= "      <small class='form-text text-muted' ";
+      $res .= "id='$this->formName"."_";
+      $res .= htmlspecialchars ($this->name, ENT_QUOTES)."_help'>";
+      $res .= $this->help;
+      $res .= "</small>\n";
+    }
+    $res .= "    </div>\n"; // End controls
+    $res .= "  </div>\n"; // End form-group
+    return $res;
+  }
+  // }}}
+
+  // }}}
 }