79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
// Copyright 2020 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// No-frills example of how to initialize and call into a PDFium environment
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// including V8 support (but not XFA) from C++. Since the V8 API is in C++,
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// C++ is required in this case (not just C).
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#include <string.h>
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#include "public/fpdf_edit.h"
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#include "public/fpdf_formfill.h"
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#include "public/fpdfview.h"
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#include "v8/include/libplatform/libplatform.h"
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#include "v8/include/v8-array-buffer.h"
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#include "v8/include/v8-initialization.h"
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#include "v8/include/v8-isolate.h"
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int main(int argc, const char* argv[]) {
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// V8 must be initialized before the PDFium library if using V8.
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v8::V8::InitializeICUDefaultLocation(argv[0]);
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v8::V8::InitializeExternalStartupData(argv[0]);
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v8::Platform* platform = v8::platform::NewDefaultPlatform().release();
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v8::V8::InitializePlatform(platform);
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v8::V8::Initialize();
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v8::Isolate::CreateParams params;
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params.array_buffer_allocator = static_cast<v8::ArrayBuffer::Allocator*>(
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FPDF_GetArrayBufferAllocatorSharedInstance());
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v8::Isolate* isolate = v8::Isolate::New(params);
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// The PDF library must be initialized before creating a document.
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FPDF_LIBRARY_CONFIG config;
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memset(&config, 0, sizeof(config));
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config.version = 3;
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config.m_pIsolate = isolate;
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config.m_pPlatform = platform;
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FPDF_InitLibraryWithConfig(&config);
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// The document must be created before creating a form-fill environment.
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// Typically use FPDF_LoadDocument() for pre-existing documents. Here, we
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// create a new blank document for simplicity.
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FPDF_DOCUMENT doc = FPDF_CreateNewDocument();
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IPDF_JSPLATFORM jsplatform;
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memset(&jsplatform, 0, sizeof(jsplatform));
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FPDF_FORMFILLINFO formfillinfo;
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memset(&formfillinfo, 0, sizeof(formfillinfo));
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formfillinfo.version = 1;
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formfillinfo.m_pJsPlatform = &jsplatform;
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FPDF_FORMHANDLE form_handle =
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FPDFDOC_InitFormFillEnvironment(doc, &formfillinfo);
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// Typically use FPDF_LoadPage() for pre-existing pages. Here, we
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// create a new blank page for simplicity.
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FPDF_PAGE page = FPDFPage_New(doc, 0, 640.0, 480.0);
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FORM_OnAfterLoadPage(page, form_handle);
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FORM_DoPageAAction(page, form_handle, FPDFPAGE_AACTION_OPEN);
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// Do actual work with the page here.
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FORM_DoPageAAction(page, form_handle, FPDFPAGE_AACTION_CLOSE);
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FORM_OnBeforeClosePage(page, form_handle);
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FPDF_ClosePage(page);
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FORM_DoDocumentAAction(form_handle, FPDFDOC_AACTION_WC);
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FPDFDOC_ExitFormFillEnvironment(form_handle);
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FPDF_CloseDocument(doc);
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FPDF_DestroyLibrary();
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isolate->Dispose();
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v8::V8::ShutdownPlatform();
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delete platform;
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return 0;
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}
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