Add FPDFFormObj_CountObjects() API
To find out the number of sub-objects a form object has, similar to how
FPDFPage_CountObjects() does it for page objects.
Change-Id: I7e5775dece42b74fd5b71b1d9622a1aa37bf64ac
Reviewed-on: https://pdfium-review.googlesource.com/37316
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
diff --git a/fpdfsdk/fpdf_editpage.cpp b/fpdfsdk/fpdf_editpage.cpp
index 8a12008..4151de5 100644
--- a/fpdfsdk/fpdf_editpage.cpp
+++ b/fpdfsdk/fpdf_editpage.cpp
@@ -751,3 +751,24 @@
pPageObj->SetDirty(true);
return true;
}
+
+FPDF_EXPORT int FPDF_CALLCONV
+FPDFFormObj_CountObjects(FPDF_PAGEOBJECT page_object) {
+ auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
+ if (!pPageObj)
+ return -1;
+
+ CPDF_FormObject* pFormObject = pPageObj->AsForm();
+ if (!pFormObject)
+ return -1;
+
+ const CPDF_Form* pForm = pFormObject->form();
+ if (!pForm)
+ return -1;
+
+ const CPDF_PageObjectList* pObjectList = pForm->GetPageObjectList();
+ if (!pObjectList)
+ return -1;
+
+ return pObjectList->size();
+}
