| // Copyright (c) 2012 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/dragdrop/gtk_dnd_util.h" |
| |
| #include <string> |
| |
| #include "base/logging.h" |
| #include "base/pickle.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "ui/base/clipboard/custom_data_helper.h" |
| #include "url/gurl.h" |
| |
| namespace ui { |
| |
| namespace { |
| |
| const int kBitsPerByte = 8; |
| |
| void AddTargetToList(GtkTargetList* targets, int target_code) { |
| switch (target_code) { |
| case ui::TEXT_PLAIN: |
| gtk_target_list_add_text_targets(targets, ui::TEXT_PLAIN); |
| break; |
| |
| case ui::TEXT_URI_LIST: |
| gtk_target_list_add_uri_targets(targets, ui::TEXT_URI_LIST); |
| break; |
| |
| case ui::TEXT_HTML: |
| gtk_target_list_add( |
| targets, ui::GetAtomForTarget(ui::TEXT_HTML), 0, ui::TEXT_HTML); |
| break; |
| |
| case ui::NETSCAPE_URL: |
| gtk_target_list_add(targets, |
| ui::GetAtomForTarget(ui::NETSCAPE_URL), 0, ui::NETSCAPE_URL); |
| break; |
| |
| case ui::CHROME_TAB: |
| case ui::CHROME_BOOKMARK_ITEM: |
| case ui::CHROME_NAMED_URL: |
| gtk_target_list_add(targets, ui::GetAtomForTarget(target_code), |
| GTK_TARGET_SAME_APP, target_code); |
| break; |
| |
| case ui::DIRECT_SAVE_FILE: |
| gtk_target_list_add(targets, |
| ui::GetAtomForTarget(ui::DIRECT_SAVE_FILE), 0, ui::DIRECT_SAVE_FILE); |
| break; |
| |
| case ui::CUSTOM_DATA: |
| gtk_target_list_add(targets, |
| ui::GetAtomForTarget(ui::CUSTOM_DATA), 0, ui::CUSTOM_DATA); |
| break; |
| |
| default: |
| NOTREACHED() << " Unexpected target code: " << target_code; |
| } |
| } |
| |
| } // namespace |
| |
| GdkAtom GetAtomForTarget(int target) { |
| switch (target) { |
| case CHROME_TAB: |
| static const GdkAtom kTabAtom = gdk_atom_intern( |
| "application/x-chrome-tab", false); |
| return kTabAtom; |
| |
| case TEXT_HTML: |
| static const GdkAtom kHtmlAtom = gdk_atom_intern( |
| "text/html", false); |
| return kHtmlAtom; |
| |
| case CHROME_BOOKMARK_ITEM: |
| static const GdkAtom kBookmarkAtom = gdk_atom_intern( |
| "application/x-chrome-bookmark-item", false); |
| return kBookmarkAtom; |
| |
| case TEXT_PLAIN: |
| static const GdkAtom kTextAtom= gdk_atom_intern( |
| "text/plain;charset=utf-8", false); |
| return kTextAtom; |
| |
| case TEXT_URI_LIST: |
| static const GdkAtom kUrisAtom = gdk_atom_intern( |
| "text/uri-list", false); |
| return kUrisAtom; |
| |
| case CHROME_NAMED_URL: |
| static const GdkAtom kNamedUrl = gdk_atom_intern( |
| "application/x-chrome-named-url", false); |
| return kNamedUrl; |
| |
| case NETSCAPE_URL: |
| static const GdkAtom kNetscapeUrl = gdk_atom_intern( |
| "_NETSCAPE_URL", false); |
| return kNetscapeUrl; |
| |
| case TEXT_PLAIN_NO_CHARSET: |
| static const GdkAtom kTextNoCharsetAtom = gdk_atom_intern( |
| "text/plain", false); |
| return kTextNoCharsetAtom; |
| |
| case DIRECT_SAVE_FILE: |
| static const GdkAtom kXdsAtom = gdk_atom_intern( |
| "XdndDirectSave0", false); |
| return kXdsAtom; |
| |
| case CUSTOM_DATA: |
| static const GdkAtom kCustomData = gdk_atom_intern( |
| kMimeTypeWebCustomData, false); |
| return kCustomData; |
| |
| default: |
| NOTREACHED(); |
| } |
| |
| return NULL; |
| } |
| |
| GtkTargetList* GetTargetListFromCodeMask(int code_mask) { |
| GtkTargetList* targets = gtk_target_list_new(NULL, 0); |
| |
| for (size_t i = 1; i < INVALID_TARGET; i = i << 1) { |
| if (i == CHROME_WEBDROP_FILE_CONTENTS) |
| continue; |
| |
| if (i & code_mask) |
| AddTargetToList(targets, i); |
| } |
| |
| return targets; |
| } |
| |
| void SetSourceTargetListFromCodeMask(GtkWidget* source, int code_mask) { |
| GtkTargetList* targets = GetTargetListFromCodeMask(code_mask); |
| gtk_drag_source_set_target_list(source, targets); |
| gtk_target_list_unref(targets); |
| } |
| |
| void SetDestTargetList(GtkWidget* dest, const int* target_codes) { |
| GtkTargetList* targets = gtk_target_list_new(NULL, 0); |
| |
| for (size_t i = 0; target_codes[i] != -1; ++i) { |
| AddTargetToList(targets, target_codes[i]); |
| } |
| |
| gtk_drag_dest_set_target_list(dest, targets); |
| gtk_target_list_unref(targets); |
| } |
| |
| void WriteURLWithName(GtkSelectionData* selection_data, |
| const GURL& url, |
| base::string16 title, |
| int type) { |
| if (title.empty()) { |
| // We prefer to not have empty titles. Set it to the filename extracted |
| // from the URL. |
| title = UTF8ToUTF16(url.ExtractFileName()); |
| } |
| |
| switch (type) { |
| case TEXT_PLAIN: { |
| gtk_selection_data_set_text(selection_data, url.spec().c_str(), |
| url.spec().length()); |
| break; |
| } |
| case TEXT_URI_LIST: { |
| gchar* uri_array[2]; |
| uri_array[0] = strdup(url.spec().c_str()); |
| uri_array[1] = NULL; |
| gtk_selection_data_set_uris(selection_data, uri_array); |
| free(uri_array[0]); |
| break; |
| } |
| case CHROME_NAMED_URL: { |
| Pickle pickle; |
| pickle.WriteString(UTF16ToUTF8(title)); |
| pickle.WriteString(url.spec()); |
| gtk_selection_data_set( |
| selection_data, |
| GetAtomForTarget(ui::CHROME_NAMED_URL), |
| kBitsPerByte, |
| reinterpret_cast<const guchar*>(pickle.data()), |
| pickle.size()); |
| break; |
| } |
| case NETSCAPE_URL: { |
| // _NETSCAPE_URL format is URL + \n + title. |
| std::string utf8_text = url.spec() + "\n" + UTF16ToUTF8(title); |
| gtk_selection_data_set(selection_data, |
| gtk_selection_data_get_target(selection_data), |
| kBitsPerByte, |
| reinterpret_cast<const guchar*>(utf8_text.c_str()), |
| utf8_text.length()); |
| break; |
| } |
| |
| default: { |
| NOTREACHED(); |
| break; |
| } |
| } |
| } |
| |
| bool ExtractNamedURL(GtkSelectionData* selection_data, |
| GURL* url, |
| base::string16* title) { |
| if (!selection_data || gtk_selection_data_get_length(selection_data) <= 0) |
| return false; |
| |
| Pickle data( |
| reinterpret_cast<const char*>( |
| gtk_selection_data_get_data(selection_data)), |
| gtk_selection_data_get_length(selection_data)); |
| PickleIterator iter(data); |
| std::string title_utf8, url_utf8; |
| if (!data.ReadString(&iter, &title_utf8) || |
| !data.ReadString(&iter, &url_utf8)) { |
| return false; |
| } |
| |
| GURL gurl(url_utf8); |
| if (!gurl.is_valid()) |
| return false; |
| |
| *url = gurl; |
| *title = UTF8ToUTF16(title_utf8); |
| return true; |
| } |
| |
| bool ExtractURIList(GtkSelectionData* selection_data, std::vector<GURL>* urls) { |
| gchar** uris = gtk_selection_data_get_uris(selection_data); |
| if (!uris) |
| return false; |
| |
| for (size_t i = 0; uris[i] != NULL; ++i) { |
| GURL url(uris[i]); |
| if (url.is_valid()) |
| urls->push_back(url); |
| } |
| |
| g_strfreev(uris); |
| return true; |
| } |
| |
| bool ExtractNetscapeURL(GtkSelectionData* selection_data, |
| GURL* url, |
| base::string16* title) { |
| if (!selection_data || gtk_selection_data_get_length(selection_data) <= 0) |
| return false; |
| |
| // Find the first '\n' in the data. It is the separator between the url and |
| // the title. |
| std::string data( |
| reinterpret_cast<const char*>( |
| gtk_selection_data_get_data(selection_data)), |
| gtk_selection_data_get_length(selection_data)); |
| std::string::size_type newline = data.find('\n'); |
| if (newline == std::string::npos) |
| return false; |
| |
| GURL gurl(data.substr(0, newline)); |
| if (!gurl.is_valid()) |
| return false; |
| |
| *url = gurl; |
| *title = UTF8ToUTF16(data.substr(newline + 1)); |
| return true; |
| } |
| |
| } // namespace ui |