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// Copyright (c) 2013 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 "ui/base/x/selection_utils.h"
#include <set>
#include "base/i18n/icu_string_conversions.h"
#include "base/logging.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/base/x/x11_atom_cache.h"
#include "ui/base/x/x11_util.h"
namespace ui {
const char kMimeTypeMozillaURL[] = "text/x-moz-url";
const char kString[] = "STRING";
const char kText[] = "TEXT";
const char kUtf8String[] = "UTF8_STRING";
const char* kSelectionDataAtoms[] = {
Clipboard::kMimeTypeHTML,
kString,
kText,
kUtf8String,
NULL
};
std::vector< ::Atom> GetTextAtomsFrom(const X11AtomCache* atom_cache) {
std::vector< ::Atom> atoms;
atoms.push_back(atom_cache->GetAtom(kString));
atoms.push_back(atom_cache->GetAtom(kText));
atoms.push_back(atom_cache->GetAtom(kUtf8String));
return atoms;
}
std::vector< ::Atom> GetURLAtomsFrom(const X11AtomCache* atom_cache) {
std::vector< ::Atom> atoms;
atoms.push_back(atom_cache->GetAtom(Clipboard::kMimeTypeURIList));
atoms.push_back(atom_cache->GetAtom(kMimeTypeMozillaURL));
return atoms;
}
void GetAtomIntersection(const std::vector< ::Atom>& one,
const std::vector< ::Atom>& two,
std::vector< ::Atom>* output) {
for (std::vector< ::Atom>::const_iterator it = one.begin(); it != one.end();
++it) {
for (std::vector< ::Atom>::const_iterator jt = two.begin(); jt != two.end();
++jt) {
if (*it == *jt) {
output->push_back(*it);
break;
}
}
}
}
///////////////////////////////////////////////////////////////////////////////
SelectionFormatMap::SelectionFormatMap() {}
SelectionFormatMap::~SelectionFormatMap() {
// WriteText() inserts the same pointer multiple times for different
// representations; we need to dedupe it.
std::set<char*> to_delete;
for (InternalMap::iterator it = data_.begin(); it != data_.end(); ++it)
to_delete.insert(it->second.first);
for (std::set<char*>::iterator it = to_delete.begin(); it != to_delete.end();
++it) {
delete [] *it;
}
}
void SelectionFormatMap::Insert(::Atom atom, char* data, size_t size) {
// Views code often inserts the same content multiple times, so we have to
// free old data. Only call delete when it's the last pointer we have to that
// data.
InternalMap::iterator exists_it = data_.find(atom);
if (exists_it != data_.end()) {
int count = 0;
for (InternalMap::iterator it = data_.begin(); it != data_.end(); ++it) {
if (it->second.first == exists_it->second.first)
count++;
}
if (count == 1)
delete [] exists_it->second.first;
}
data_.insert(std::make_pair(atom, std::make_pair(data, size)));
}
ui::SelectionData* SelectionFormatMap::GetFirstOf(
const std::vector< ::Atom>& requested_types) const {
for (std::vector< ::Atom>::const_iterator it = requested_types.begin();
it != requested_types.end(); ++it) {
const_iterator data_it = data_.find(*it);
if (data_it != data_.end()) {
ui::SelectionData* data = new SelectionData;
data->Set(data_it->first, data_it->second.first, data_it->second.second,
false);
return data;
}
}
return NULL;
}
std::vector< ::Atom> SelectionFormatMap::GetTypes() const {
std::vector< ::Atom> atoms;
for (const_iterator it = data_.begin(); it != data_.end(); ++it)
atoms.push_back(it->first);
return atoms;
}
scoped_ptr<SelectionFormatMap> SelectionFormatMap::Clone() const {
scoped_ptr<SelectionFormatMap> ret(new SelectionFormatMap);
for (const_iterator it = data_.begin(); it != data_.end(); ++it) {
char* data_copy = new char[it->second.second];
memcpy(data_copy, it->second.first, it->second.second);
ret->Insert(it->first, data_copy, it->second.second);
}
return ret.Pass();
}
///////////////////////////////////////////////////////////////////////////////
SelectionData::SelectionData()
: type_(None),
data_(NULL),
size_(0),
owned_(false),
atom_cache_(ui::GetXDisplay(), kSelectionDataAtoms) {
}
SelectionData::~SelectionData() {
if (owned_)
XFree(data_);
}
void SelectionData::Set(::Atom type, char* data, size_t size, bool owned) {
if (owned_)
XFree(data_);
type_ = type;
data_ = data;
size_ = size;
owned_ = owned;
}
std::string SelectionData::GetText() const {
if (type_ == atom_cache_.GetAtom(kUtf8String) ||
type_ == atom_cache_.GetAtom(kText)) {
return std::string(data_, size_);
} else if (type_ == atom_cache_.GetAtom(kString)) {
std::string result;
base::ConvertToUtf8AndNormalize(std::string(data_, size_),
base::kCodepageLatin1,
&result);
return result;
} else {
// BTW, I looked at COMPOUND_TEXT, and there's no way we're going to
// support that. Yuck.
NOTREACHED();
return std::string();
}
}
string16 SelectionData::GetHtml() const {
string16 markup;
if (type_ == atom_cache_.GetAtom(Clipboard::kMimeTypeHTML)) {
// If the data starts with 0xFEFF, i.e., Byte Order Mark, assume it is
// UTF-16, otherwise assume UTF-8.
if (size_ >= 2 &&
reinterpret_cast<const uint16_t*>(data_)[0] == 0xFEFF) {
markup.assign(reinterpret_cast<const uint16_t*>(data_) + 1,
(size_ / 2) - 1);
} else {
UTF8ToUTF16(reinterpret_cast<const char*>(data_), size_, &markup);
}
// If there is a terminating NULL, drop it.
if (!markup.empty() && markup.at(markup.length() - 1) == '\0')
markup.resize(markup.length() - 1);
return markup;
} else {
NOTREACHED();
return markup;
}
}
void SelectionData::AssignTo(std::string* result) const {
result->assign(data_, size_);
}
void SelectionData::AssignTo(string16* result) const {
result->assign(reinterpret_cast<base::char16*>(data_), size_ / 2);
}
} // namespace ui
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