As suggested by Lu Wand, merging the adobe-form branch into the incoming branch

CMakeLists.txt

@@ -119,6 +119,7 @@ set(PDF2HTMLEX_SRC ${PDF2HTMLEX_SRC}
     src/HTMLRenderer/general.cc
     src/HTMLRenderer/image.cc
     src/HTMLRenderer/font.cc
+    src/HTMLRenderer/form.cc
     src/HTMLRenderer/link.cc
     src/HTMLRenderer/outline.cc
     src/HTMLRenderer/state.cc

pdf2htmlEX.1.in

@@ -138,6 +138,10 @@ Whether to show outline in the generated HTML
 .B \-\-process-annotation <0|1> (Default: 0)
 Whether to show annotation in the generated HTML
 
+.TP
+.B \-\-process-form <0|1> (Default: 0)
+Whether to include text fields and radio buttons in the generated HTML
+
 .TP
 .B \-\-printing <0|1> (Default: 1)
 Enable printing support. Disabling this option may reduce the size of CSS.

share/base.css.in

@@ -190,4 +190,14 @@
   -ms-transform-origin:0% 100%;
   -webkit-transform-origin:0% 100%;
 }
+/* for the forms */
+.@CSS_INPUT_TEXT_CN@ {
+  border: none;
+  background-color: rgba(255, 255, 255, 0.0);
+}
+
+.@CSS_INPUT_RADIO_CN@:hover {
+  cursor: pointer;
+}
+
 /* Base CSS END */

share/fancy.css.in

@@ -81,5 +81,8 @@
     -webkit-animation: swing 1.5s ease-in-out 0.01s infinite alternate none;
     animation: swing 1.5s ease-in-out 0.01s infinite alternate none;
   }
+  .@CSS_RADIO_CHECKED_CN@ {
+    background: no-repeat url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3goQDSYgDiGofgAAAslJREFUOMvtlM9LFGEYx7/vvOPM6ywuuyPFihWFBUsdNnA6KLIh+QPx4KWExULdHQ/9A9EfUodYmATDYg/iRewQzklFWxcEBcGgEplDkDtI6sw4PzrIbrOuedBb9MALD7zv+3m+z4/3Bf7bZS2bzQIAcrmcMDExcTeXy10DAFVVAQDksgFUVZ1ljD3yfd+0LOuFpmnvVVW9GHhkZAQcxwkNDQ2FSCQyRMgJxnVdy7KstKZpn7nwha6urqqfTqfPBAJAuVymlNLXoigOhfd5nmeiKL5TVTV+lmIKwAOA7u5u6Lped2BsbOwjY6yf4zgQQkAIAcedaPR9H67r3uYBQFEUFItFtLe332lpaVkUBOHK3t5eRtf1DwAwODiIubk5DA8PM8bYW1EU+wEgCIJqsCAIQAiB7/u253k2BQDDMJBKpa4mEon5eDx+UxAESJL0uK2t7XosFlvSdf0QAEmlUnlRFJ9Waho2Qghc1/U9z3uWz+eX+Wr+lL6SZfleEAQIggA8z6OpqSknimIvYyybSCReMsZ6TislhCAIAti2Dc/zejVNWwCAavN8339j27YbTg0AGGM3WltbP4WhlRWq6Q/btrs1TVsYHx+vNgqKoqBUKn2NRqPFxsbGJzzP05puUlpt0ukyOI6z7zjOwNTU1OLo6CgmJyf/gA3DgKIoWF1d/cIY24/FYgOU0pp0z/Ityzo8Pj5OTk9PbwHA+vp6zWghDC+VSiuRSOQgGo32UErJ38CO42wdHR09LBQK3zKZDDY2NupmFmF4R0cHVlZWlmRZ/iVJUn9FeWWcCCE4ODjYtG27Z2Zm5juAOmgdGAB2d3cBADs7O8uSJN2SZfl+WKlpmpumaT6Yn58vn/fs6XmbhmHMNjc3tzDGFI7jYJrm5vb29sDa2trPC/9aiqJUy5pOp4f6+vqeJ5PJBAB0dnZe/t8NBajx/z37Df5OGX8d13xzAAAAAElFTkSuQmCC);
+  }
 }
 /* Fancy CSS END */

share/pdf2htmlEX.js.in

@@ -260,7 +260,24 @@ Viewer.prototype = {
     this.pre_hide_pages();
   },
 
+  initialize_radio_button : function() {
+    var elements = document.getElementsByClassName('ir');
+    
+    for(var i = 0; i < elements.length; i++) {
+      var r = elements[i];
+
+      r.addEventListener('click', function() {
+        if(this.className.search("checked") == -1)
+          this.className += " checked";
+        else
+          this.className = "ir";
+      });
+    }
+  },
+
   init_after_loading_content : function() {
+    this.initialize_radio_button();
+    
     this.sidebar = document.getElementById(this.config['sidebar_id']);
     this.outline = document.getElementById(this.config['outline_id']);
     this.container = document.getElementById(this.config['container_id']);

src/HTMLRenderer/HTMLRenderer.h

@@ -21,6 +21,10 @@
 #include <GfxFont.h>
 #include <Annot.h>
 
+// for form.cc
+#include <Page.h>
+#include <Form.h>
+
 #include "pdf2htmlEX-config.h"
 
 #include "Param.h"
@@ -161,6 +165,8 @@ protected:
     void process_outline(void);
     void process_outline_items(GooList * items);
 
+    void process_form(std::ofstream & out);
+    
     void set_stream_flags (std::ostream & out);
 
     void dump_css(void);

src/HTMLRenderer/form.cc

@@ -0,0 +1,75 @@
+/*
+ * form.cc
+ *
+ * Handling Forms
+ *
+ * by Simon Chenard
+ * 2014.07.25
+ */
+
+#include <iostream>
+#include <sstream>
+#include <string>
+
+#include "HTMLRenderer.h"
+#include "util/namespace.h"
+#include "util/misc.h"
+
+namespace pdf2htmlEX {
+   
+using std::ofstream;
+using std::cerr;
+
+void HTMLRenderer::process_form(ofstream & out)
+{
+    FormPageWidgets * widgets = cur_catalog->getPage(pageNum)->getFormWidgets();
+    int num = widgets->getNumWidgets();
+
+    for(int i = 0; i < num; i++)
+    {
+        FormWidget * w = widgets->getWidget(i);
+        double x1, y1, x2, y2, width, font_size;
+        int height;
+
+        w->getRect(&x1, &y1, &x2, &y2);
+        x1 = x1 * param.zoom;
+        x2 = x2 * param.zoom;
+        y1 = y1 * param.zoom;
+        y2 = y2 * param.zoom;
+
+        width = x2 - x1;
+        height = y2 - y1;
+        
+        if(w->getType() == formText)
+        {
+            font_size = height / 2;
+
+            out 
+                << "<input id=\"text-" << pageNum << "-" 
+                    << i << "\" type=\"text\" value=\"\""
+                    << " style=\"position: absolute; left: " << x1 
+                    << "px; bottom: " << y1 << "px;" 
+                    << " width: " << width << "px; height: " << std::to_string(height) 
+                    << "px; line-height: " << std::to_string(height) << "px; font-size: " 
+                    << font_size << "px;\" class=\"" 
+                    << CSS::INPUT_TEXT_CN << "\" />" << endl;
+        }
+
+        if(w->getType() == formButton)
+        {
+            width += 3;
+            height += 3;
+
+            out 
+                << "<div id=\"cb-" << pageNum << "-" << i << "\"" 
+                    << " style=\"position: absolute; left: " << x1 
+                    << "px; bottom: " << y1 << "px;" 
+                    << " width: " << width << "px; height: " 
+                    << std::to_string(height) << "px; background-size: cover;\" class=\"" 
+                    << CSS::INPUT_RADIO_CN << "\"></div>" << endl;
+
+        }
+    }
+}
+
+}

src/HTMLRenderer/general.cc

@@ -239,6 +239,10 @@ void HTMLRenderer::endPage() {
     html_text_page.dump_css(f_css.fs);
     html_text_page.clear();
 
+    // process form
+    if(param.process_form)
+        process_form(*f_curpage);
+    
     // process links before the page is closed
     cur_doc->processLinks(this, pageNum);
 
@@ -380,6 +384,7 @@ void HTMLRenderer::pre_process(PDFDoc * doc)
 void HTMLRenderer::post_process(void)
 {
     dump_css();
+    
     // close files if they opened
     if (param.process_outline)
     {

src/Param.h

@@ -38,6 +38,7 @@ struct Param
     int process_nontext;
     int process_outline;
     int process_annotation;
+    int process_form;
     int correct_text_visibility;
     int printing;
     int fallback;

src/css_class_names.cmakelists.txt

@@ -34,3 +34,6 @@ set(CSS_WIDTH_CN            "w") # Width
 set(CSS_BOTTTOM_CN          "y") # Y
 set(CSS_CSS_DRAW_CN         "d") # Draw
 set(CSS_LINK_CN             "l") # Link
+set(CSS_INPUT_TEXT_CN       "it") # Text input
+set(CSS_INPUT_RADIO_CN      "ir") # Radio button
+set(CSS_RADIO_CHECKED_CN    "checked") # Show picture of checked out radio button

src/pdf2htmlEX.cc

@@ -164,6 +164,7 @@ void parse_options (int argc, char **argv)
         .add("process-nontext", &param.process_nontext, 1, "render graphics in addition to text")
         .add("process-outline", &param.process_outline, 1, "show outline in HTML")
         .add("process-annotation", &param.process_annotation, 0, "show annotation in HTML")
+        .add("process-form", &param.process_form, 0, "include text fields and radio buttons")
         .add("printing", &param.printing, 1, "enable printing support")
         .add("fallback", &param.fallback, 0, "output in fallback mode")
         .add("tmp-file-size-limit", &param.tmp_file_size_limit, -1, "Maximum size (in KB) used by temporary files, -1 for no limit.")

src/util/css_const.h.in

@@ -56,6 +56,10 @@ const char * const BOTTOM_CN           = "@CSS_BOTTTOM_CN@";
 const char * const CSS_DRAW_CN         = "@CSS_CSS_DRAW_CN@";
 const char * const LINK_CN             = "@CSS_LINK_CN@";
 
+const char * const INPUT_TEXT_CN       = "@CSS_INPUT_TEXT_CN@";
+const char * const INPUT_RADIO_CN      = "@CSS_INPUT_RADIO_CN@";
+const char * const RADIO_CHECKED_CN    = "@CSS_RADIO_CHECKED_CN@";
+
 }
 }