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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_util.h"
#include "ui/gfx/x/x11_atom_cache.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;
}
}
}
}
void AddString16ToVector(const string16& str,
std::vector<unsigned char>* bytes) {
const unsigned char* front =
reinterpret_cast<const unsigned char*>(str.data());
bytes->insert(bytes->end(), front, front + (str.size() * 2));
}
std::string RefCountedMemoryToString(
const scoped_refptr<base::RefCountedMemory>& memory) {
if (!memory.get()) {
NOTREACHED();
return std::string();
}
size_t size = memory->size();
if (!size)
return std::string();
const unsigned char* front = memory->front();
return std::string(reinterpret_cast<const char*>(front), size);
}
string16 RefCountedMemoryToString16(
const scoped_refptr<base::RefCountedMemory>& memory) {
if (!memory.get()) {
NOTREACHED();
return string16();
}
size_t size = memory->size();
if (!size)
return string16();
const unsigned char* front = memory->front();
return string16(reinterpret_cast<const base::char16*>(front), size / 2);
}
///////////////////////////////////////////////////////////////////////////////
SelectionFormatMap::SelectionFormatMap() {}
SelectionFormatMap::~SelectionFormatMap() {}
void SelectionFormatMap::Insert(
::Atom atom,
const scoped_refptr<base::RefCountedMemory>& item) {
data_.erase(atom);
data_.insert(std::make_pair(atom, item));
}
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()) {
return SelectionData(data_it->first, data_it->second);
}
}
return SelectionData();
}
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;
}
///////////////////////////////////////////////////////////////////////////////
SelectionData::SelectionData()
: type_(None),
atom_cache_(gfx::GetXDisplay(), kSelectionDataAtoms) {
}
SelectionData::SelectionData(
::Atom type,
const scoped_refptr<base::RefCountedMemory>& memory)
: type_(type),
memory_(memory),
atom_cache_(gfx::GetXDisplay(), kSelectionDataAtoms) {
}
SelectionData::SelectionData(const SelectionData& rhs)
: type_(rhs.type_),
memory_(rhs.memory_),
atom_cache_(gfx::GetXDisplay(), kSelectionDataAtoms) {
}
SelectionData::~SelectionData() {}
SelectionData& SelectionData::operator=(const SelectionData& rhs) {
type_ = rhs.type_;
memory_ = rhs.memory_;
// TODO(erg): In some future where we have to support multiple X Displays,
// the following will also need to deal with the display.
return *this;
}
bool SelectionData::IsValid() const {
return type_ != None;
}
::Atom SelectionData::GetType() const {
return type_;
}
const unsigned char* SelectionData::GetData() const {
return memory_.get() ? memory_->front() : NULL;
}
size_t SelectionData::GetSize() const {
return memory_.get() ? memory_->size() : 0;
}
std::string SelectionData::GetText() const {
if (type_ == atom_cache_.GetAtom(kUtf8String) ||
type_ == atom_cache_.GetAtom(kText)) {
return RefCountedMemoryToString(memory_);
} else if (type_ == atom_cache_.GetAtom(kString)) {
std::string result;
base::ConvertToUtf8AndNormalize(RefCountedMemoryToString(memory_),
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)) {
const unsigned char* data = GetData();
size_t size = GetSize();
// 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 = RefCountedMemoryToString(memory_);
}
void SelectionData::AssignTo(string16* result) const {
*result = RefCountedMemoryToString16(memory_);
}
} // namespace ui
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