| // Copyright (c) 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "extensions/browser/api/clipboard/clipboard_api.h" |
| |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/lazy_instance.h" |
| #include "base/strings/string_util.h" |
| #include "base/values.h" |
| #include "extensions/browser/api/extensions_api_client.h" |
| #include "extensions/browser/event_router.h" |
| #include "ui/base/clipboard/clipboard_monitor.h" |
| |
| namespace extensions { |
| |
| namespace clipboard = api::clipboard; |
| |
| static base::LazyInstance< |
| BrowserContextKeyedAPIFactory<ClipboardAPI>>::DestructorAtExit g_factory = |
| LAZY_INSTANCE_INITIALIZER; |
| |
| // static |
| BrowserContextKeyedAPIFactory<ClipboardAPI>* |
| ClipboardAPI::GetFactoryInstance() { |
| return g_factory.Pointer(); |
| } |
| |
| ClipboardAPI::ClipboardAPI(content::BrowserContext* context) |
| : browser_context_(context) { |
| ui::ClipboardMonitor::GetInstance()->AddObserver(this); |
| } |
| |
| ClipboardAPI::~ClipboardAPI() { |
| ui::ClipboardMonitor::GetInstance()->RemoveObserver(this); |
| } |
| |
| void ClipboardAPI::OnClipboardDataChanged() { |
| EventRouter* router = EventRouter::Get(browser_context_); |
| if (router && |
| router->HasEventListener(clipboard::OnClipboardDataChanged::kEventName)) { |
| std::unique_ptr<Event> event( |
| new Event(events::CLIPBOARD_ON_CLIPBOARD_DATA_CHANGED, |
| clipboard::OnClipboardDataChanged::kEventName, |
| std::make_unique<base::ListValue>())); |
| router->BroadcastEvent(std::move(event)); |
| } |
| } |
| |
| ClipboardSetImageDataFunction::~ClipboardSetImageDataFunction() {} |
| |
| ExtensionFunction::ResponseAction ClipboardSetImageDataFunction::Run() { |
| std::unique_ptr<clipboard::SetImageData::Params> params( |
| clipboard::SetImageData::Params::Create(*args_)); |
| EXTENSION_FUNCTION_VALIDATE(params); |
| |
| // Fill in the omitted additional data items with empty data. |
| if (!params->additional_items) |
| params->additional_items = std::make_unique<AdditionalDataItemList>(); |
| |
| if (!IsAdditionalItemsParamValid(*params->additional_items)) { |
| return RespondNow(Error("Unsupported additionalItems parameter data.")); |
| } |
| |
| ExtensionsAPIClient::Get()->SaveImageDataToClipboard( |
| std::vector<char>(params->image_data.begin(), params->image_data.end()), |
| params->type, std::move(*params->additional_items), |
| base::Bind(&ClipboardSetImageDataFunction::OnSaveImageDataSuccess, this), |
| base::Bind(&ClipboardSetImageDataFunction::OnSaveImageDataError, this)); |
| return RespondLater(); |
| } |
| |
| void ClipboardSetImageDataFunction::OnSaveImageDataSuccess() { |
| Respond(NoArguments()); |
| } |
| |
| void ClipboardSetImageDataFunction::OnSaveImageDataError( |
| const std::string& error) { |
| Respond(Error(error)); |
| } |
| |
| bool ClipboardSetImageDataFunction::IsAdditionalItemsParamValid( |
| const AdditionalDataItemList& items) { |
| // Limit the maximum text/html data length to 2MB. |
| const size_t max_item_data_bytes = 2097152; |
| |
| bool has_text_plain = false; |
| bool has_text_html = false; |
| for (const clipboard::AdditionalDataItem& item : items) { |
| switch (item.type) { |
| case clipboard::DATA_ITEM_TYPE_TEXTPLAIN: |
| if (has_text_plain) |
| return false; |
| has_text_plain = true; |
| break; |
| case clipboard::DATA_ITEM_TYPE_TEXTHTML: |
| if (has_text_html) |
| return false; |
| has_text_html = true; |
| break; |
| default: |
| NOTREACHED(); |
| } |
| // Check maximum length of the string data. |
| if (item.data.length() > max_item_data_bytes) |
| return false; |
| } |
| return true; |
| } |
| |
| } // namespace extensions |