From 75e9d38bea6d1129109eb8872f611371866e658f Mon Sep 17 00:00:00 2001
From: Bohung <bohung@rulingcom.com>
Date: Wed, 16 Jun 2021 11:52:20 +0800
Subject: [PATCH] Fix bug for IE drag upload file.

---
 .../admin/archive_files_controller.rb         | 12 +++
 app/views/admin/archive_files/_form.html.erb  | 88 ++++++++++++++++++-
 2 files changed, 97 insertions(+), 3 deletions(-)

diff --git a/app/controllers/admin/archive_files_controller.rb b/app/controllers/admin/archive_files_controller.rb
index 6282676..c6789cf 100644
--- a/app/controllers/admin/archive_files_controller.rb
+++ b/app/controllers/admin/archive_files_controller.rb
@@ -1,4 +1,5 @@
 class Admin::ArchiveFilesController < OrbitAdminController
+  require 'action_dispatch/http/upload'
   def show
     module_pages = Page.where(:module => 'archive').collect{|p| p.url}
     if module_pages.length<1
@@ -100,6 +101,17 @@ class Admin::ArchiveFilesController < OrbitAdminController
   # PUT /archive_files/1
   # PUT /archive_files/1.xml
   def update
+    params["archive_file"]["archive_file_multiples_attributes"].each do |k,v|
+      if v["file"].class == String
+        file_content_info = JSON.parse(v["file"])
+        content_type = file_content_info["type"]
+        filename = file_content_info["name"]
+        head = "Content-Disposition: form-data; name=\"archive_file[archive_file_multiples_attributes][#{k}][file]\"; filename=\"#{filename}\" Content-Type: #{content_type}" 
+        tempfile = Tempfile.new(filename,binmode: true)
+        tempfile.write(file_content_info["content"].unpack('U*').map{|i| i.chr }.join)
+        v["file"] = ActionDispatch::Http::UploadedFile.new({:filename=>filename,:type=>content_type,:head=>head,:tempfile=>tempfile})
+      end
+    end
     @archive_file = ArchiveFile.find(params[:id])
   
     @archive_file.update_user_id = current_user.id
diff --git a/app/views/admin/archive_files/_form.html.erb b/app/views/admin/archive_files/_form.html.erb
index 310f829..518338f 100644
--- a/app/views/admin/archive_files/_form.html.erb
+++ b/app/views/admin/archive_files/_form.html.erb
@@ -221,6 +221,32 @@
 
 <% content_for :page_specific_javascript do %>
   <script>
+    if (!FileReader.prototype.readAsBinaryString) {
+      console.log('readAsBinaryString definition not found');
+
+      FileReader.prototype.readAsBinaryString = function (fileData) {
+          var binary = '';
+          var pk = this;
+          var reader = new FileReader();
+
+          reader.onload = function (e) {
+              var bytes = new Uint8Array(reader.result);
+              var length = bytes.byteLength;
+
+              for (var i = 0; i < length; i++) {
+                  var a = bytes[i];
+
+                  var b = String.fromCharCode(a)
+                  binary += b;
+              }
+
+              pk.content = binary;
+              $(pk).trigger('onload');
+          }
+
+          reader.readAsArrayBuffer(fileData);
+      }
+  }
     function FileListItems (files) {
       var b;
       if(window.dataTransfer){
@@ -241,6 +267,9 @@
             delete b.files[i];
           }
         }
+        if(b.files.length != 0){
+          return files
+        }
       }
       for (var i = 0, len = files.length; i<len; i++){
         if(b.items){
@@ -256,14 +285,63 @@
       if(fileupload.length > 0){
         fileupload.find(".fileupload-preview").text(files[0].name);
       }
+      console.log(files)
       var files_list = new FileListItems(files)
-      $(file_field)[0].files = files_list;
+      try{
+        $(file_field)[0].files = files_list;
+      }catch(e){console.log(e)}
       if($(file_field)[0].files.length == 0){ //Change failed
         var file_field_values = [];
-        for(var i = 0; i < files_list.length; i++){
-          $(file_field)[0].files[i] = files_list[i];
+        var file_reader = new FileReader();
+        $("[name=\""+$(file_field)[0].name+"\"][type=\"hidden\"]").remove();
+        var hidden_input = $("<input type=\"hidden\" name=\""+$(file_field)[0].name+"\">");
+        var hidden_input_values = [];
+        $(file_field).after(hidden_input);
+        var files_list_length = files_list.length;
+        for(var i = 0; i < files_list_length; i++){
+          console.log(files_list[i].name)
+          var file = files_list[i];
+          $(file_field)[0].files[i] = file;
+          file_reader.readAsBinaryString(files_list[i]);
+          file_reader.onload = (function(hidden_input,file,i,files_list_length) {
+            return function(e) {
+              var file_info = {};
+              file_info["name"] = file.name;
+              file_info["type"] = file.type;
+              if (file_reader.result)
+                file_reader.content = file_reader.result;
+              file_info["content"] = e ? e.target.result : file_reader.content;
+              if(Array.isArray(hidden_input_values)){
+                hidden_input_values.push(file_info);
+              }
+              if(i == files_list_length - 1){
+                if(hidden_input_values.length == 1){
+                  hidden_input_values = hidden_input_values[0];
+                }
+                hidden_input.val(JSON.stringify(hidden_input_values));
+              }
+            };})(hidden_input,file,i,files_list_length);
           file_field_values.push("C:\\fakepath\\" + files_list[i].name);
         }
+        Object.defineProperty($(file_field)[0].files, "length", {
+            // only returns odd die sides
+            get: function () {
+              var length = 0;
+              while(this[length]){
+                length++;
+              }
+              return length;
+            }
+        });
+        Object.defineProperty($(file_field)[0], "value", {
+            // only returns odd die sides
+            get: function () {
+              return (this.getAttribute('value') ? this.getAttribute('value') : "");
+            },
+            set: function(value) {
+              this.setAttribute('value',value);
+            }
+        });
         $(file_field)[0].value = file_field_values.join(", ");
       }
     }
@@ -274,6 +352,7 @@
       ev.preventDefault();
     }
     function dropHandler(ev) {
+      window.ev = ev;
       window.dataTransfer = ev.dataTransfer;
       // Prevent default behavior (Prevent file from being opened)
       ev.preventDefault();
@@ -332,6 +411,9 @@
       $(document).on('click', '.delete_file', function(){
         $(this).parents('.input-prepend').remove();
       });
+      $(document).on('click',"[type='file']",function(){
+        $("[name=\""+$(this).attr("name")+"\"][type=\"hiiden\"]").remove();
+      });
       $(document).on('click', '.remove_existing_record', function(){
         if(confirm("<%= I18n.t(:sure?)%>")){
           $(this).children('.should_destroy').attr('value', 1);