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Unified Diff: base/clipboard_util.cc

Issue 260003: Move the clipboard stuff out of base and into app/clipboard. I renamed... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 11 years, 3 months ago
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Index: base/clipboard_util.cc
===================================================================
--- base/clipboard_util.cc (revision 27849)
+++ base/clipboard_util.cc (working copy)
@@ -1,502 +0,0 @@
-// Copyright (c) 2006-2008 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 "base/clipboard_util.h"
-
-#include <shellapi.h>
-#include <shlwapi.h>
-#include <wininet.h>
-
-#include "base/basictypes.h"
-#include "base/logging.h"
-#include "base/scoped_handle.h"
-#include "base/string_util.h"
-
-namespace {
-
-bool GetUrlFromHDrop(IDataObject* data_object, std::wstring* url,
- std::wstring* title) {
- DCHECK(data_object && url && title);
-
- STGMEDIUM medium;
- if (FAILED(data_object->GetData(ClipboardUtil::GetCFHDropFormat(), &medium)))
- return false;
-
- HDROP hdrop = static_cast<HDROP>(GlobalLock(medium.hGlobal));
-
- if (!hdrop)
- return false;
-
- bool success = false;
- wchar_t filename[MAX_PATH];
- if (DragQueryFileW(hdrop, 0, filename, arraysize(filename))) {
- wchar_t url_buffer[INTERNET_MAX_URL_LENGTH];
- if (0 == _wcsicmp(PathFindExtensionW(filename), L".url") &&
- GetPrivateProfileStringW(L"InternetShortcut", L"url", 0, url_buffer,
- arraysize(url_buffer), filename)) {
- *url = url_buffer;
- PathRemoveExtension(filename);
- title->assign(PathFindFileName(filename));
- success = true;
- }
- }
-
- DragFinish(hdrop);
- GlobalUnlock(medium.hGlobal);
- // We don't need to call ReleaseStgMedium here because as far as I can tell,
- // DragFinish frees the hGlobal for us.
- return success;
-}
-
-bool SplitUrlAndTitle(const std::wstring& str, std::wstring* url,
- std::wstring* title) {
- DCHECK(url && title);
- size_t newline_pos = str.find('\n');
- bool success = false;
- if (newline_pos != std::string::npos) {
- *url = str.substr(0, newline_pos);
- title->assign(str.substr(newline_pos + 1));
- success = true;
- } else {
- *url = str;
- title->assign(str);
- success = true;
- }
- return success;
-}
-
-} // namespace
-
-
-FORMATETC* ClipboardUtil::GetUrlFormat() {
- static UINT cf = RegisterClipboardFormat(CFSTR_INETURLA);
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetUrlWFormat() {
- static UINT cf = RegisterClipboardFormat(CFSTR_INETURLW);
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetMozUrlFormat() {
- // The format is "URL\nTitle"
- static UINT cf = RegisterClipboardFormat(L"text/x-moz-url");
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetPlainTextFormat() {
- // We don't need to register this format since it's a built in format.
- static FORMATETC format = {CF_TEXT, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetPlainTextWFormat() {
- // We don't need to register this format since it's a built in format.
- static FORMATETC format = {CF_UNICODETEXT, 0, DVASPECT_CONTENT, -1,
- TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetFilenameWFormat() {
- static UINT cf = RegisterClipboardFormat(CFSTR_FILENAMEW);
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetFilenameFormat() {
- static UINT cf = RegisterClipboardFormat(CFSTR_FILENAMEA);
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetHtmlFormat() {
- static UINT cf = RegisterClipboardFormat(L"HTML Format");
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetTextHtmlFormat() {
- static UINT cf = RegisterClipboardFormat(L"text/html");
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetCFHDropFormat() {
- // We don't need to register this format since it's a built in format.
- static FORMATETC format = {CF_HDROP, 0, DVASPECT_CONTENT, -1,
- TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetFileDescriptorFormat() {
- static UINT cf = RegisterClipboardFormat(CFSTR_FILEDESCRIPTOR);
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetFileContentFormatZero() {
- static UINT cf = RegisterClipboardFormat(CFSTR_FILECONTENTS);
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, 0, TYMED_HGLOBAL};
- return &format;
-}
-
-FORMATETC* ClipboardUtil::GetWebKitSmartPasteFormat() {
- static UINT cf = RegisterClipboardFormat(L"WebKit Smart Paste Format");
- static FORMATETC format = {cf, 0, DVASPECT_CONTENT, 0, TYMED_HGLOBAL};
- return &format;
-}
-
-
-bool ClipboardUtil::HasUrl(IDataObject* data_object) {
- DCHECK(data_object);
- return SUCCEEDED(data_object->QueryGetData(GetMozUrlFormat())) ||
- SUCCEEDED(data_object->QueryGetData(GetUrlWFormat())) ||
- SUCCEEDED(data_object->QueryGetData(GetUrlFormat())) ||
- SUCCEEDED(data_object->QueryGetData(GetFilenameWFormat())) ||
- SUCCEEDED(data_object->QueryGetData(GetFilenameFormat()));
-}
-
-bool ClipboardUtil::HasFilenames(IDataObject* data_object) {
- DCHECK(data_object);
- return SUCCEEDED(data_object->QueryGetData(GetCFHDropFormat()));
-}
-
-bool ClipboardUtil::HasFileContents(IDataObject* data_object) {
- DCHECK(data_object);
- return SUCCEEDED(data_object->QueryGetData(GetFileContentFormatZero()));
-}
-
-bool ClipboardUtil::HasHtml(IDataObject* data_object) {
- DCHECK(data_object);
- return SUCCEEDED(data_object->QueryGetData(GetHtmlFormat())) ||
- SUCCEEDED(data_object->QueryGetData(GetTextHtmlFormat()));
-}
-
-bool ClipboardUtil::HasPlainText(IDataObject* data_object) {
- DCHECK(data_object);
- return SUCCEEDED(data_object->QueryGetData(GetPlainTextWFormat())) ||
- SUCCEEDED(data_object->QueryGetData(GetPlainTextFormat()));
-}
-
-
-bool ClipboardUtil::GetUrl(IDataObject* data_object,
- std::wstring* url, std::wstring* title) {
- DCHECK(data_object && url && title);
- if (!HasUrl(data_object))
- return false;
-
- // Try to extract a URL from |data_object| in a variety of formats.
- STGMEDIUM store;
- if (GetUrlFromHDrop(data_object, url, title)) {
- return true;
- }
-
- if (SUCCEEDED(data_object->GetData(GetMozUrlFormat(), &store)) ||
- SUCCEEDED(data_object->GetData(GetUrlWFormat(), &store))) {
- // Mozilla URL format or unicode URL
- ScopedHGlobal<wchar_t> data(store.hGlobal);
- bool success = SplitUrlAndTitle(data.get(), url, title);
- ReleaseStgMedium(&store);
- if (success)
- return true;
- }
-
- if (SUCCEEDED(data_object->GetData(GetUrlFormat(), &store))) {
- // URL using ascii
- ScopedHGlobal<char> data(store.hGlobal);
- bool success = SplitUrlAndTitle(UTF8ToWide(data.get()), url, title);
- ReleaseStgMedium(&store);
- if (success)
- return true;
- }
-
- if (SUCCEEDED(data_object->GetData(GetFilenameWFormat(), &store))) {
- // filename using unicode
- ScopedHGlobal<wchar_t> data(store.hGlobal);
- bool success = false;
- if (data.get() && data.get()[0] && (PathFileExists(data.get()) ||
- PathIsUNC(data.get()))) {
- wchar_t file_url[INTERNET_MAX_URL_LENGTH];
- DWORD file_url_len = sizeof(file_url) / sizeof(file_url[0]);
- if (SUCCEEDED(::UrlCreateFromPathW(data.get(), file_url, &file_url_len,
- 0))) {
- *url = file_url;
- title->assign(file_url);
- success = true;
- }
- }
- ReleaseStgMedium(&store);
- if (success)
- return true;
- }
-
- if (SUCCEEDED(data_object->GetData(GetFilenameFormat(), &store))) {
- // filename using ascii
- ScopedHGlobal<char> data(store.hGlobal);
- bool success = false;
- if (data.get() && data.get()[0] && (PathFileExistsA(data.get()) ||
- PathIsUNCA(data.get()))) {
- char file_url[INTERNET_MAX_URL_LENGTH];
- DWORD file_url_len = sizeof(file_url) / sizeof(file_url[0]);
- if (SUCCEEDED(::UrlCreateFromPathA(data.get(),
- file_url,
- &file_url_len,
- 0))) {
- *url = UTF8ToWide(file_url);
- title->assign(*url);
- success = true;
- }
- }
- ReleaseStgMedium(&store);
- if (success)
- return true;
- }
-
- return false;
-}
-
-bool ClipboardUtil::GetFilenames(IDataObject* data_object,
- std::vector<std::wstring>* filenames) {
- DCHECK(data_object && filenames);
- if (!HasFilenames(data_object))
- return false;
-
- STGMEDIUM medium;
- if (FAILED(data_object->GetData(GetCFHDropFormat(), &medium)))
- return false;
-
- HDROP hdrop = static_cast<HDROP>(GlobalLock(medium.hGlobal));
- if (!hdrop)
- return false;
-
- const int kMaxFilenameLen = 4096;
- const unsigned num_files = DragQueryFileW(hdrop, 0xffffffff, 0, 0);
- for (unsigned int i = 0; i < num_files; ++i) {
- wchar_t filename[kMaxFilenameLen];
- if (!DragQueryFileW(hdrop, i, filename, kMaxFilenameLen))
- continue;
- filenames->push_back(filename);
- }
-
- DragFinish(hdrop);
- GlobalUnlock(medium.hGlobal);
- // We don't need to call ReleaseStgMedium here because as far as I can tell,
- // DragFinish frees the hGlobal for us.
- return true;
-}
-
-bool ClipboardUtil::GetPlainText(IDataObject* data_object,
- std::wstring* plain_text) {
- DCHECK(data_object && plain_text);
- if (!HasPlainText(data_object))
- return false;
-
- STGMEDIUM store;
- bool success = false;
- if (SUCCEEDED(data_object->GetData(GetPlainTextWFormat(), &store))) {
- // Unicode text
- ScopedHGlobal<wchar_t> data(store.hGlobal);
- plain_text->assign(data.get());
- ReleaseStgMedium(&store);
- success = true;
- } else if (SUCCEEDED(data_object->GetData(GetPlainTextFormat(), &store))) {
- // ascii text
- ScopedHGlobal<char> data(store.hGlobal);
- plain_text->assign(UTF8ToWide(data.get()));
- ReleaseStgMedium(&store);
- success = true;
- } else {
- // If a file is dropped on the window, it does not provide either of the
- // plain text formats, so here we try to forcibly get a url.
- std::wstring title;
- success = GetUrl(data_object, plain_text, &title);
- }
-
- return success;
-}
-
-bool ClipboardUtil::GetHtml(IDataObject* data_object,
- std::wstring* html, std::string* base_url) {
- DCHECK(data_object && html && base_url);
-
- if (SUCCEEDED(data_object->QueryGetData(GetHtmlFormat()))) {
- STGMEDIUM store;
- if (SUCCEEDED(data_object->GetData(GetHtmlFormat(), &store))) {
- // MS CF html
- ScopedHGlobal<char> data(store.hGlobal);
-
- std::string html_utf8;
- CFHtmlToHtml(std::string(data.get(), data.Size()), &html_utf8, base_url);
- html->assign(UTF8ToWide(html_utf8));
-
- ReleaseStgMedium(&store);
- return true;
- }
- }
-
- if (FAILED(data_object->QueryGetData(GetTextHtmlFormat())))
- return false;
-
- STGMEDIUM store;
- if (FAILED(data_object->GetData(GetTextHtmlFormat(), &store)))
- return false;
-
- // text/html
- ScopedHGlobal<wchar_t> data(store.hGlobal);
- html->assign(data.get());
- ReleaseStgMedium(&store);
- return true;
-}
-
-bool ClipboardUtil::GetFileContents(IDataObject* data_object,
- std::wstring* filename, std::string* file_contents) {
- DCHECK(data_object && filename && file_contents);
- bool has_data =
- SUCCEEDED(data_object->QueryGetData(GetFileContentFormatZero())) ||
- SUCCEEDED(data_object->QueryGetData(GetFileDescriptorFormat()));
-
- if (!has_data)
- return false;
-
- STGMEDIUM content;
- // The call to GetData can be very slow depending on what is in
- // |data_object|.
- if (SUCCEEDED(data_object->GetData(GetFileContentFormatZero(), &content))) {
- if (TYMED_HGLOBAL == content.tymed) {
- ScopedHGlobal<char> data(content.hGlobal);
- file_contents->assign(data.get(), data.Size());
- }
- ReleaseStgMedium(&content);
- }
-
- STGMEDIUM description;
- if (SUCCEEDED(data_object->GetData(GetFileDescriptorFormat(),
- &description))) {
- ScopedHGlobal<FILEGROUPDESCRIPTOR> fgd(description.hGlobal);
- // We expect there to be at least one file in here.
- DCHECK_GE(fgd->cItems, 1);
- filename->assign(fgd->fgd[0].cFileName);
- ReleaseStgMedium(&description);
- }
- return true;
-}
-
-// HtmlToCFHtml and CFHtmlToHtml are based on similar methods in
-// WebCore/platform/win/ClipboardUtilitiesWin.cpp.
-/*
- * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-// Helper method for converting from text/html to MS CF_HTML.
-// Documentation for the CF_HTML format is available at
-// http://msdn.microsoft.com/en-us/library/aa767917(VS.85).aspx
-std::string ClipboardUtil::HtmlToCFHtml(const std::string& html,
- const std::string& base_url) {
- if (html.empty())
- return std::string();
-
- #define MAX_DIGITS 10
- #define MAKE_NUMBER_FORMAT_1(digits) MAKE_NUMBER_FORMAT_2(digits)
- #define MAKE_NUMBER_FORMAT_2(digits) "%0" #digits "u"
- #define NUMBER_FORMAT MAKE_NUMBER_FORMAT_1(MAX_DIGITS)
-
- static const char* header = "Version:0.9\r\n"
- "StartHTML:" NUMBER_FORMAT "\r\n"
- "EndHTML:" NUMBER_FORMAT "\r\n"
- "StartFragment:" NUMBER_FORMAT "\r\n"
- "EndFragment:" NUMBER_FORMAT "\r\n";
- static const char* source_url_prefix = "SourceURL:";
-
- static const char* start_markup =
- "<html>\r\n<body>\r\n<!--StartFragment-->\r\n";
- static const char* end_markup =
- "\r\n<!--EndFragment-->\r\n</body>\r\n</html>";
-
- // Calculate offsets
- size_t start_html_offset = strlen(header) - strlen(NUMBER_FORMAT) * 4 +
- MAX_DIGITS * 4;
- if (!base_url.empty()) {
- start_html_offset += strlen(source_url_prefix) +
- base_url.length() + 2; // Add 2 for \r\n.
- }
- size_t start_fragment_offset = start_html_offset + strlen(start_markup);
- size_t end_fragment_offset = start_fragment_offset + html.length();
- size_t end_html_offset = end_fragment_offset + strlen(end_markup);
-
- std::string result = StringPrintf(header, start_html_offset,
- end_html_offset, start_fragment_offset, end_fragment_offset);
- if (!base_url.empty()) {
- result.append(source_url_prefix);
- result.append(base_url);
- result.append("\r\n");
- }
- result.append(start_markup);
- result.append(html);
- result.append(end_markup);
-
- #undef MAX_DIGITS
- #undef MAKE_NUMBER_FORMAT_1
- #undef MAKE_NUMBER_FORMAT_2
- #undef NUMBER_FORMAT
-
- return result;
-}
-
-// Helper method for converting from MS CF_HTML to text/html.
-void ClipboardUtil::CFHtmlToHtml(const std::string& cf_html,
- std::string* html,
- std::string* base_url) {
- // Obtain base_url if present.
- if (base_url) {
- static std::string src_url_str("SourceURL:");
- size_t line_start = cf_html.find(src_url_str);
- if (line_start != std::string::npos) {
- size_t src_end = cf_html.find("\n", line_start);
- size_t src_start = line_start + src_url_str.length();
- if (src_end != std::string::npos && src_start != std::string::npos) {
- *base_url = cf_html.substr(src_start, src_end - src_start);
- TrimWhitespace(*base_url, TRIM_ALL, base_url);
- }
- }
- }
-
- // Find the markup between "<!--StartFragment -->" and "<!--EndFragment-->".
- if (html) {
- std::string cf_html_lower = StringToLowerASCII(cf_html);
- size_t markup_start = cf_html_lower.find("<html", 0);
- size_t tag_start = cf_html.find("StartFragment", markup_start);
- size_t fragment_start = cf_html.find('>', tag_start) + 1;
- size_t tag_end = cf_html.rfind("EndFragment", std::string::npos);
- size_t fragment_end = cf_html.rfind('<', tag_end);
- if (fragment_start != std::string::npos &&
- fragment_end != std::string::npos) {
- *html = cf_html.substr(fragment_start, fragment_end - fragment_start);
- TrimWhitespace(*html, TRIM_ALL, html);
- }
- }
-}
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