| // Copyright 2014 The PDFium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "fxjs/js_define.h" |
| |
| #include <math.h> |
| #include <stdarg.h> |
| |
| #include <algorithm> |
| #include <limits> |
| #include <vector> |
| |
| #include "core/fxcrt/check.h" |
| #include "core/fxcrt/fx_extension.h" |
| #include "core/fxcrt/span.h" |
| #include "fxjs/cjs_document.h" |
| #include "fxjs/cjs_object.h" |
| #include "fxjs/fx_date_helpers.h" |
| #include "fxjs/fxv8.h" |
| #include "v8/include/v8-context.h" |
| #include "v8/include/v8-function.h" |
| #include "v8/include/v8-isolate.h" |
| |
| void JSDestructor(v8::Local<v8::Object> obj) { |
| CFXJS_Engine::SetBinding(obj, nullptr); |
| } |
| |
| double JS_DateParse(v8::Isolate* pIsolate, const WideString& str) { |
| v8::Isolate::Scope isolate_scope(pIsolate); |
| v8::HandleScope scope(pIsolate); |
| |
| v8::Local<v8::Context> context = pIsolate->GetCurrentContext(); |
| |
| // Use the built-in object method. |
| v8::MaybeLocal<v8::Value> maybe_value = |
| context->Global()->Get(context, fxv8::NewStringHelper(pIsolate, "Date")); |
| |
| v8::Local<v8::Value> value; |
| if (!maybe_value.ToLocal(&value) || !value->IsObject()) |
| return 0; |
| |
| v8::Local<v8::Object> obj = value.As<v8::Object>(); |
| maybe_value = obj->Get(context, fxv8::NewStringHelper(pIsolate, "parse")); |
| if (!maybe_value.ToLocal(&value) || !value->IsFunction()) |
| return 0; |
| |
| v8::Local<v8::Function> func = value.As<v8::Function>(); |
| static constexpr int argc = 1; |
| v8::Local<v8::Value> argv[argc] = { |
| fxv8::NewStringHelper(pIsolate, str.AsStringView()), |
| }; |
| maybe_value = func->Call(context, context->Global(), argc, argv); |
| if (!maybe_value.ToLocal(&value) || !value->IsNumber()) |
| return 0; |
| |
| double date = value.As<v8::Number>()->Value(); |
| return isfinite(date) ? FX_LocalTime(date) : date; |
| } |
| |
| v8::LocalVector<v8::Value> ExpandKeywordParams( |
| CJS_Runtime* pRuntime, |
| pdfium::span<v8::Local<v8::Value>> originals, |
| size_t nKeywords, |
| ...) { |
| DCHECK(nKeywords); |
| |
| v8::LocalVector<v8::Value> result(pRuntime->GetIsolate(), nKeywords); |
| size_t size = std::min(originals.size(), nKeywords); |
| for (size_t i = 0; i < size; ++i) |
| result[i] = originals[i]; |
| |
| if (originals.size() != 1 || !originals[0]->IsObject() || |
| originals[0]->IsArray()) { |
| return result; |
| } |
| result[0] = v8::Local<v8::Value>(); // Make unknown. |
| |
| v8::Local<v8::Object> pObj = pRuntime->ToObject(originals[0]); |
| va_list ap; |
| va_start(ap, nKeywords); |
| for (size_t i = 0; i < nKeywords; ++i) { |
| const char* property = va_arg(ap, const char*); |
| v8::Local<v8::Value> v8Value = pRuntime->GetObjectProperty(pObj, property); |
| if (!v8Value->IsUndefined()) |
| result[i] = v8Value; |
| } |
| va_end(ap); |
| |
| return result; |
| } |
| |
| bool IsExpandedParamKnown(v8::Local<v8::Value> value) { |
| return !value.IsEmpty() && |
| (value->IsString() || value->IsNumber() || value->IsBoolean() || |
| value->IsDate() || value->IsObject() || value->IsNull() || |
| value->IsUndefined()); |
| } |