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937e950631
Allows easier visualization of places where the JS side may change legitimacy of previously extracted values. -- Gemini-generated rename, no funny business (hopefully). Change-Id: I2aeab6e4b8092a16258b3c3586cebaa34ebaf21a Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/147770 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
// Copyright 2014 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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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "fxjs/js_define.h"
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#include <math.h>
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#include <stdarg.h>
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#include <algorithm>
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#include <limits>
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#include "core/fxcrt/check.h"
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#include "core/fxcrt/fx_extension.h"
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#include "core/fxcrt/span.h"
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#include "fxjs/cjs_document.h"
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#include "fxjs/cjs_object.h"
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#include "fxjs/fx_date_helpers.h"
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#include "fxjs/fxv8.h"
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#include "v8/include/v8-context.h"
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#include "v8/include/v8-function.h"
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#include "v8/include/v8-isolate.h"
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void JSDestructor(v8::Local<v8::Object> obj) {
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CFXJS_Engine::SetBinding(obj, nullptr);
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}
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double JS_DateParse(v8::Isolate* pIsolate, const WideString& str) {
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v8::Isolate::Scope isolate_scope(pIsolate);
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v8::HandleScope scope(pIsolate);
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v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
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// Use the built-in object method.
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v8::MaybeLocal<v8::Value> maybe_value =
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context->Global()->Get(context, fxv8::NewStringHelper(pIsolate, "Date"));
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v8::Local<v8::Value> value;
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if (!maybe_value.ToLocal(&value) || !value->IsObject()) {
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return 0;
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}
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v8::Local<v8::Object> obj = value.As<v8::Object>();
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maybe_value = obj->Get(context, fxv8::NewStringHelper(pIsolate, "parse"));
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if (!maybe_value.ToLocal(&value) || !value->IsFunction()) {
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return 0;
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}
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v8::Local<v8::Function> func = value.As<v8::Function>();
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static constexpr int argc = 1;
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v8::Local<v8::Value> argv[argc] = {
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fxv8::NewStringHelper(pIsolate, str.AsStringView()),
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};
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maybe_value = func->Call(context, context->Global(), argc, argv);
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if (!maybe_value.ToLocal(&value) || !value->IsNumber()) {
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return 0;
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}
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double date = value.As<v8::Number>()->Value();
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return isfinite(date) ? FX_LocalTime(date) : date;
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}
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v8::LocalVector<v8::Value> ExpandKeywordParams(
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CJS_Runtime* pRuntime,
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pdfium::span<v8::Local<v8::Value>> originals,
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size_t nKeywords,
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...) {
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DCHECK(nKeywords);
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v8::LocalVector<v8::Value> result(pRuntime->GetIsolate(), nKeywords);
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size_t size = std::min(originals.size(), nKeywords);
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for (size_t i = 0; i < size; ++i) {
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result[i] = originals[i];
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}
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if (originals.size() != 1 || !originals[0]->IsObject() ||
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originals[0]->IsArray()) {
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return result;
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}
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result[0] = v8::Local<v8::Value>(); // Make unknown.
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v8::Local<v8::Object> pObj = pRuntime->ToObjectReentrant(originals[0]);
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va_list ap;
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va_start(ap, nKeywords);
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for (size_t i = 0; i < nKeywords; ++i) {
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const char* property = va_arg(ap, const char*);
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v8::Local<v8::Value> v8Value =
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pRuntime->GetObjectPropertyReentrant(pObj, property);
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if (!v8Value->IsUndefined()) {
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result[i] = v8Value;
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}
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}
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va_end(ap);
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return result;
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}
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bool IsExpandedParamKnown(v8::Local<v8::Value> value) {
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return !value.IsEmpty() &&
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(value->IsString() || value->IsNumber() || value->IsBoolean() ||
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value->IsDate() || value->IsObject() || value->IsNull() ||
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value->IsUndefined());
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}
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