Implement clipboard for aura and re-enable clipboard_unittests.

ui/base/clipboard/clipboard_aurax11.cc

+// Copyright (c) 2011 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/clipboard/clipboard.h"
+
+#include "base/logging.h"
+#include "base/utf_string_conversions.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/linux_util.h"
+#include "ui/gfx/size.h"
+
+namespace ui {
+
+namespace {
+const char kMimeTypeBitmap[] = "image/bmp";
+const char kMimeTypeWebkitSmartPaste[] = "chromium/x-webkit-paste";
+
+// ClipboardData contains data copied to the Clipboard for a variety of formats.
+// It mostly just provides APIs to cleanly access and manipulate this data.
+class ClipboardData {
+ public:
+  ClipboardData()
+      : bitmap_data_(),
+        custom_data_data_(),
+        custom_data_len_(0),
+        web_smart_paste_(false) {}
+
+  virtual ~ClipboardData() {}
+
+  const std::string& text() const { return text_; }
+  void set_text(const std::string& text) { text_ = text; }
+
+  const std::string& markup_data() const { return markup_data_; }
+  void set_markup_data(const std::string& markup_data) {
+    markup_data_ = markup_data;
+  }
+
+  const std::string& url() const { return url_; }
+  void set_url(const std::string& url) { url_ = url; }
+
+  const std::string& bookmark_title() const { return bookmark_title_; }
+  void set_bookmark_title(const std::string& bookmark_title) {
+    bookmark_title_ = bookmark_title;
+  }
+
+  const std::string& bookmark_url() const { return bookmark_url_; }
+  void set_bookmark_url(const std::string& bookmark_url) {
+    bookmark_url_ = bookmark_url;
+  }
+
+  uint8_t* bitmap_data() const { return bitmap_data_.get(); }
+  const gfx::Size& bitmap_size() const { return bitmap_size_; }
+  void SetBitmapData(const char* pixel_data, const char* size_data) {
+    bitmap_size_ = *reinterpret_cast<const gfx::Size*>(size_data);
+
+    // We assume 4-byte pixel data.
+    size_t bitmap_data_len = 4 * bitmap_size_.width() * bitmap_size_.height();
+    bitmap_data_.reset(new uint8_t[bitmap_data_len]);
+    memcpy(bitmap_data_.get(), pixel_data, bitmap_data_len);
+  }
+
+  const std::string& custom_data_format() const { return custom_data_format_; }
+  char* custom_data_data() const { return custom_data_data_.get(); }
+  size_t custom_data_len() const { return custom_data_len_; }
+
+  void SetCustomData(const std::string& data_format,
+                     const char* data_data,
+                     size_t data_len) {
+    custom_data_len_ = data_len;
+    if (custom_data_len_ == 0) {
+      custom_data_data_.reset();
+      custom_data_format_.clear();
+      return;
+    }
+    custom_data_data_.reset(new char[custom_data_len_]);
+    memcpy(custom_data_data_.get(), data_data, custom_data_len_);
+    custom_data_format_ = data_format;
+  }
+
+  bool web_smart_paste() const { return web_smart_paste_; }
+  void set_web_smart_paste(bool web_smart_paste) {
+    web_smart_paste_ = web_smart_paste;
+  }
+
+ private:
+  // Plain text in UTF8 format.
+  std::string text_;
+
+  // HTML markup data in UTF8 format.
+  std::string markup_data_;
+  std::string url_;
+
+  // Bookmark title in UTF8 format.
+  std::string bookmark_title_;
+  std::string bookmark_url_;
+
+  // Bitmap images.
+  scoped_array<uint8_t> bitmap_data_;
+  gfx::Size bitmap_size_;
+
+  // Data with custom format.
+  std::string custom_data_format_;
+  scoped_array<char> custom_data_data_;
+  size_t custom_data_len_;
+
+  // WebKit smart paste data.
+  bool web_smart_paste_;
+
+  DISALLOW_COPY_AND_ASSIGN(ClipboardData);
+};
+
+ClipboardData* clipboard_data = NULL;
+
+ClipboardData* GetClipboardData() {
+  if (!clipboard_data)
+    clipboard_data = new ClipboardData();
+  return clipboard_data;
+}
+
+void DeleteClipboardData() {
+  if (clipboard_data)
+    delete clipboard_data;
+  clipboard_data = NULL;
+}
+
+}  // namespace
+
+// TODO(varunjain): Complete implementation:
+// 1. Handle different types of BUFFERs.
+// 2. Do we need to care about concurrency here? Can there be multiple instances
+//    of ui::Clipboard? Ask oshima.
+// 3. Implement File types.
+// 4. Handle conversion between types.
+
+Clipboard::Clipboard() {
+  // Make sure clipboard is created.
+  GetClipboardData();
+}
+
+Clipboard::~Clipboard() {
+}
+
+void Clipboard::WriteObjects(const ObjectMap& objects) {
+  // We need to overwrite previous data. Probably best to just delete
+  // everything and start fresh.
+  DeleteClipboardData();
+  for (ObjectMap::const_iterator iter = objects.begin();
+       iter != objects.end(); ++iter) {
+    DispatchObject(static_cast<ObjectType>(iter->first), iter->second);
+  }
+}
+
+void Clipboard::WriteObjects(const ObjectMap& objects,
+                             base::ProcessHandle process) {
+  NOTIMPLEMENTED();
+}
+
+bool Clipboard::IsFormatAvailable(const FormatType& format,
+                                  Buffer buffer) const {
+  ClipboardData* data = GetClipboardData();
+  if (GetPlainTextFormatType() == format)
+    return !data->text().empty();
+  else if (GetHtmlFormatType() == format)
+    return !data->markup_data().empty() || !data->url().empty();
+  else if (GetBitmapFormatType() == format)
+    return !!data->bitmap_data();
+  else if (GetWebKitSmartPasteFormatType() == format)
+    return data->web_smart_paste();
+  else if (data->custom_data_format() == format)
+    return true;
+  return false;
+}
+
+bool Clipboard::IsFormatAvailableByString(const std::string& format,
+                                          Buffer buffer) const {
+  return IsFormatAvailable(format, buffer);
+}
+
+void Clipboard::ReadAvailableTypes(Buffer buffer, std::vector<string16>* types,
+    bool* contains_filenames) const {
+  if (!types || !contains_filenames) {
+    NOTREACHED();
+    return;
+  }
+
+  types->clear();
+  if (IsFormatAvailable(GetPlainTextFormatType(), buffer))
+    types->push_back(UTF8ToUTF16(GetPlainTextFormatType()));
+  if (IsFormatAvailable(GetHtmlFormatType(), buffer))
+    types->push_back(UTF8ToUTF16(GetHtmlFormatType()));
+  if (IsFormatAvailable(GetBitmapFormatType(), buffer))
+    types->push_back(UTF8ToUTF16(GetBitmapFormatType()));
+  if (IsFormatAvailable(GetWebKitSmartPasteFormatType(), buffer))
+    types->push_back(UTF8ToUTF16(GetWebKitSmartPasteFormatType()));
+  *contains_filenames = false;
+}
+
+void Clipboard::ReadText(Buffer buffer, string16* result) const {
+  *result = UTF8ToUTF16(GetClipboardData()->text());
+}
+
+void Clipboard::ReadAsciiText(Buffer buffer, std::string* result) const {
+  *result = GetClipboardData()->text();
+}
+
+void Clipboard::ReadHTML(Buffer buffer,
+                         string16* markup,
+                         std::string* src_url,
+                         uint32* fragment_start,
+                         uint32* fragment_end) const {
+  markup->clear();
+  if (src_url)
+    src_url->clear();
+  *fragment_start = 0;
+  *fragment_end = 0;
+
+  *markup = UTF8ToUTF16(GetClipboardData()->markup_data());
+  *src_url = GetClipboardData()->url();
+
+  *fragment_start = 0;
+  DCHECK(markup->length() <= kuint32max);
+  *fragment_end = static_cast<uint32>(markup->length());
+
+}
+
+SkBitmap Clipboard::ReadImage(Buffer buffer) const {
+  const gfx::Size size = GetClipboardData()->bitmap_size();
+  uint8_t* bitmap = GetClipboardData()->bitmap_data();
+  SkBitmap image;
+  image.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height(), 0);
+  image.allocPixels();
+  image.eraseARGB(0, 0, 0, 0);
+  int byte_counter = 0;
+  for (int i = 0; i < size.height(); ++i) {
+    for (int j = 0; j < size.width(); ++j) {
+      uint32* pixel = image.getAddr32(j, i);
+      *pixel = (bitmap[byte_counter] << 0) +      /* R */
+               (bitmap[byte_counter + 1] << 8) +  /* G */
+               (bitmap[byte_counter + 2] << 16) + /* B */
+               (bitmap[byte_counter + 3] << 24);  /* A */
+      byte_counter += 4;
+    }
+  }
+  return image;
+}
+
+void Clipboard::ReadBookmark(string16* title, std::string* url) const {
+  *title = UTF8ToUTF16(GetClipboardData()->bookmark_title());
+  *url = GetClipboardData()->bookmark_url();
+}
+
+void Clipboard::ReadFile(FilePath* file) const {
+  NOTIMPLEMENTED();
+}
+
+void Clipboard::ReadFiles(std::vector<FilePath>* files) const {
+  NOTIMPLEMENTED();
+}
+
+void Clipboard::ReadData(const std::string& format, std::string* result) {
+  result->clear();
+  ClipboardData* data = GetClipboardData();
+  if (data->custom_data_format() == format)
+    *result = std::string(data->custom_data_data(), data->custom_data_len());
+}
+
+uint64 Clipboard::GetSequenceNumber() {
+  NOTIMPLEMENTED();
+  return 0;
+}
+
+void Clipboard::WriteText(const char* text_data, size_t text_len) {
+  GetClipboardData()->set_text(std::string(text_data, text_len));
+}
+
+void Clipboard::WriteHTML(const char* markup_data,
+                          size_t markup_len,
+                          const char* url_data,
+                          size_t url_len) {
+  GetClipboardData()->set_markup_data(std::string(markup_data, markup_len));
+  GetClipboardData()->set_url(std::string(url_data, url_len));
+}
+
+void Clipboard::WriteBookmark(const char* title_data,
+                              size_t title_len,
+                              const char* url_data,
+                              size_t url_len) {
+  GetClipboardData()->set_bookmark_title(std::string(title_data, title_len));
+  GetClipboardData()->set_bookmark_url(std::string(url_data, url_len));
+}
+
+void Clipboard::WriteWebSmartPaste() {
+  GetClipboardData()->set_web_smart_paste(true);
+}
+
+void Clipboard::WriteBitmap(const char* pixel_data, const char* size_data) {
+  GetClipboardData()->SetBitmapData(pixel_data, size_data);
+}
+
+void Clipboard::WriteData(const char* format_name, size_t format_len,
+                          const char* data_data, size_t data_len) {
+  GetClipboardData()->SetCustomData(std::string(format_name, format_len),
+      data_data, data_len);
+}
+
+// static
+Clipboard::FormatType Clipboard::GetPlainTextFormatType() {
+  return std::string(kMimeTypeText);
+}
+
+// static
+Clipboard::FormatType Clipboard::GetPlainTextWFormatType() {
+  return GetPlainTextFormatType();
+}
+
+// static
+Clipboard::FormatType Clipboard::GetHtmlFormatType() {
+  return std::string(kMimeTypeHTML);
+}
+
+// static
+Clipboard::FormatType Clipboard::GetBitmapFormatType() {
+  return std::string(kMimeTypeBitmap);
+}
+
+// static
+Clipboard::FormatType Clipboard::GetWebKitSmartPasteFormatType() {
+  return std::string(kMimeTypeWebkitSmartPaste);
+}
+
+}  // namespace ui