Add PDF printing support (issue #1478).

include/internal/cef_types.h

@@ -2194,6 +2194,92 @@ typedef enum {
   JSON_WRITER_PRETTY_PRINT = 1 << 2,
 } cef_json_writer_options_t;
 
+///
+// Margin type for PDF printing.
+///
+typedef enum {
+  ///
+  // Default margins.
+  ///
+  PDF_PRINT_MARGIN_DEFAULT,
+
+  ///
+  // No margins.
+  ///
+  PDF_PRINT_MARGIN_NONE,
+
+  ///
+  // Minimum margins.
+  ///
+  PDF_PRINT_MARGIN_MINIMUM,
+
+  ///
+  // Custom margins using the |margin_*| values from cef_pdf_print_settings_t.
+  ///
+  PDF_PRINT_MARGIN_CUSTOM,
+} cef_pdf_print_margin_type_t;
+
+///
+// Structure representing PDF print settings.
+///
+typedef struct _cef_pdf_print_settings_t {
+  ///
+  // Page title to display in the header. Only used if |header_footer_enabled|
+  // is set to true (1).
+  ///
+  cef_string_t header_footer_title;
+
+  ///
+  // URL to display in the footer. Only used if |header_footer_enabled| is set
+  // to true (1).
+  ///
+  cef_string_t header_footer_url;
+
+  ///
+  // Output page size in microns. If either of these values is less than or
+  // equal to zero then the default paper size (A4) will be used.
+  ///
+  int page_width;
+  int page_height;
+
+  ///
+  // Margins in millimeters. Only used if |margin_type| is set to
+  // PDF_PRINT_MARGIN_CUSTOM.
+  ///
+  double margin_top;
+  double margin_right;
+  double margin_bottom;
+  double margin_left;
+
+  ///
+  // Margin type.
+  ///
+  cef_pdf_print_margin_type_t margin_type;
+
+  ///
+  // Set to true (1) to print headers and footers or false (0) to not print
+  // headers and footers.
+  ///
+  int header_footer_enabled;
+
+  ///
+  // Set to true (1) to print the selection only or false (0) to print all.
+  ///
+  int selection_only;
+
+  ///
+  // Set to true (1) for landscape mode or false (0) for portrait mode.
+  ///
+  int landscape;
+
+  ///
+  // Set to true (1) to print background graphics or false (0) to not print
+  // background graphics.
+  ///
+  int backgrounds_enabled;
+
+} cef_pdf_print_settings_t;
+
 #ifdef __cplusplus
 }
 #endif

include/internal/cef_types_wrappers.h

@@ -822,7 +822,7 @@ class CefPageRange : public CefStructBase<CefPageRangeTraits> {
   CefPageRange(const cef_page_range_t& r)  // NOLINT(runtime/explicit)
       : parent(r) {}
   CefPageRange(const CefPageRange& r)  // NOLINT(runtime/explicit)
-      : parent(r) {} 
+      : parent(r) {}
   CefPageRange(int from, int to) : parent() {
     Set(from, to);
   }
@@ -862,4 +862,44 @@ struct CefCursorInfoTraits {
 ///
 typedef CefStructBase<CefCursorInfoTraits> CefCursorInfo;
 
+
+struct CefPdfPrintSettingsTraits {
+  typedef cef_pdf_print_settings_t struct_type;
+
+  static inline void init(struct_type* s) {}
+
+  static inline void clear(struct_type* s) {
+    cef_string_clear(&s->header_footer_title);
+    cef_string_clear(&s->header_footer_url);
+  }
+
+  static inline void set(const struct_type* src, struct_type* target,
+      bool copy) {
+
+    cef_string_set(src->header_footer_title.str,
+        src->header_footer_title.length, &target->header_footer_title, copy);
+    cef_string_set(src->header_footer_url.str, src->header_footer_url.length,
+        &target->header_footer_url, copy);
+
+    target->page_width = src->page_width;
+    target->page_height = src->page_height;
+
+    target->margin_top = src->margin_top;
+    target->margin_right = src->margin_right;
+    target->margin_bottom = src->margin_bottom;
+    target->margin_left = src->margin_left;
+    target->margin_type = src->margin_type;
+
+    target->header_footer_enabled = src->header_footer_enabled;
+    target->selection_only = src->selection_only;
+    target->landscape = src->landscape;
+    target->backgrounds_enabled = src->backgrounds_enabled;
+  }
+};
+
+///
+// Class representing PDF print settings
+///
+typedef CefStructBase<CefPdfPrintSettingsTraits> CefPdfPrintSettings;
+
 #endif  // CEF_INCLUDE_INTERNAL_CEF_TYPES_WRAPPERS_H_