diff options
Diffstat (limited to 'views/widget/drop_target_gtk.cc')
| -rw-r--r-- | views/widget/drop_target_gtk.cc | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/views/widget/drop_target_gtk.cc b/views/widget/drop_target_gtk.cc deleted file mode 100644 index 4c7dae7..0000000 --- a/views/widget/drop_target_gtk.cc +++ /dev/null @@ -1,329 +0,0 @@ -// Copyright (c) 2009 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 "views/widget/drop_target_gtk.h" - -#include <algorithm> -#include <iterator> - -#include "app/drag_drop_types.h" -#include "app/gtk_dnd_util.h" -#include "app/os_exchange_data_provider_gtk.h" -#include "base/gfx/point.h" -#include "base/string_util.h" -#include "views/widget/root_view.h" -#include "views/widget/widget_gtk.h" - -namespace { - -std::string GdkAtomToString(GdkAtom atom) { - gchar* c_name = gdk_atom_name(atom); - std::string name(c_name); - g_free(c_name); - return name; -} - -// Returns true if |name| is a known name of plain text. -bool IsTextType(const std::string& name) { - return name == "text/plain" || name == "TEXT" || - name == "STRING" || name == "UTF8_STRING"; -} - -// Returns the OSExchangeData::Formats in |targets| and all the -// OSExchangeData::CustomFormats in |type_set|. -int CalculateTypes(GList* targets, std::set<GdkAtom>* type_set) { - int types = 0; - NOTIMPLEMENTED(); // Need to support FILE_NAME, FILE_CONTENTS - for (GList* element = targets; element; - element = g_list_next(element)) { - GdkAtom atom = static_cast<GdkAtom>(element->data); - type_set->insert(atom); - if (atom == GDK_TARGET_STRING) { - types |= OSExchangeData::STRING; - } else if (atom == GtkDndUtil::GetAtomForTarget( - GtkDndUtil::CHROME_NAMED_URL) || - atom == GtkDndUtil::GetAtomForTarget( - GtkDndUtil::TEXT_URI_LIST)) { - types |= OSExchangeData::URL; - } else { - std::string target_name = GdkAtomToString(atom); - if (target_name == "text/html") { - types |= OSExchangeData::HTML; - } else if (IsTextType(target_name)) { - types |= OSExchangeData::STRING; - } else { - // Assume any unknown data is pickled. - types |= OSExchangeData::PICKLED_DATA; - } - } - } - return types; -} - -} // namespace - -namespace views { - -DropTargetGtk::DropTargetGtk(RootView* root_view, - GdkDragContext* context) - : helper_(root_view), - requested_formats_(0), - waiting_for_data_(false), - received_drop_(false), - pending_view_(NULL) { - std::set<GdkAtom> all_formats; - int source_formats = CalculateTypes(context->targets, &all_formats); - data_.reset(new OSExchangeData(new OSExchangeDataProviderGtk( - source_formats, all_formats))); -} - -DropTargetGtk::~DropTargetGtk() { -} - -void DropTargetGtk::ResetTargetViewIfEquals(View* view) { - helper_.ResetTargetViewIfEquals(view); -} - -void DropTargetGtk::OnDragDataReceived(GdkDragContext* context, - gint x, - gint y, - GtkSelectionData* data, - guint info, - guint time) { - std::string target_name = GdkAtomToString(atom); - if (data->type == GDK_TARGET_STRING || IsTextType(target_name)) { - guchar* text_data = gtk_selection_data_get_text(data); - string16 result; - if (text_data) { - char* as_char = reinterpret_cast<char*>(text_data); - UTF8ToUTF16(as_char, strlen(as_char), &result); - g_free(text_data); - } - data_provider().SetString(UTF16ToWideHack(result)); - } else if (requested_custom_formats_.find(data->type) != - requested_custom_formats_.end()) { - Pickle result; - if (data->length > 0) - result = Pickle(reinterpret_cast<char*>(data->data), data->length); - data_provider().SetPickledData(data->type, result); - } else if (data->type == GtkDndUtil::GetAtomForTarget( - GtkDndUtil::CHROME_NAMED_URL)) { - GURL url; - string16 title; - GtkDndUtil::ExtractNamedURL(data, &url, &title); - data_provider().SetURL(url, UTF16ToWideHack(title)); - } else if (data->type == GtkDndUtil::GetAtomForTarget( - GtkDndUtil::TEXT_URI_LIST)) { - std::vector<GURL> urls; - GtkDndUtil::ExtractURIList(data, &urls); - if (urls.size() == 1) { - data_provider().SetURL(urls[0], std::wstring()); - } else { - // Consumers of OSExchangeData will see this as an invalid URL. That is, - // when GetURL is invoked on the OSExchangeData this triggers false to - // be returned. - data_provider().SetURL(GURL(), std::wstring()); - } - } else { - NOTIMPLEMENTED(); // Need to support FILE_NAME, FILE_CONTENTS, HTML. - } - - if (!data_->HasAllFormats(requested_formats_, requested_custom_formats_)) - return; // Waiting on more data. - - int drag_operation = DragDropTypes::GdkDragActionToDragOperation( - context->actions); - gfx::Point root_view_location(x, y); - drag_operation = helper_.OnDragOver(*data_, root_view_location, - drag_operation); - GdkDragAction gdk_action = static_cast<GdkDragAction>( - DragDropTypes::DragOperationToGdkDragAction(drag_operation)); - if (!received_drop_) - gdk_drag_status(context, gdk_action, time); - - waiting_for_data_ = false; - - if (pending_view_ && received_drop_) { - FinishDrop(context, x, y, time); - // WARNING: we've been deleted. - return; - } -} - -gboolean DropTargetGtk::OnDragDrop(GdkDragContext* context, - gint x, - gint y, - guint time) { - received_drop_ = true; - OnDragMotion(context, x, y, time); - if (!pending_view_) { - // User isn't over a view, no drop can occur. - static_cast<WidgetGtk*>( - helper_.root_view()->GetWidget())->ResetDropTarget(); - // WARNING: we've been deleted. - return FALSE; - } - - if (!waiting_for_data_) { - // We've got all the data now. - FinishDrop(context, x, y, time); - // WARNING: we've been deleted. - return TRUE; - } - // We're waiting on data. - return TRUE; -} - -void DropTargetGtk::OnDragLeave(GdkDragContext* context, guint time) { - helper_.OnDragExit(); -} - -gboolean DropTargetGtk::OnDragMotion(GdkDragContext* context, - gint x, - gint y, - guint time) { - waiting_for_data_ = false; - gfx::Point root_view_location(x, y); - pending_view_ = - helper_.CalculateTargetView(root_view_location, *data_, false); - if (pending_view_ && - (received_drop_ || (pending_view_ != helper_.target_view() && - pending_view_->AreDropTypesRequired()))) { - // The target requires drop types before it can answer CanDrop, - // ask for the data now. - int formats = 0; - std::set<GdkAtom> custom_formats; - pending_view_->GetDropFormats(&formats, &custom_formats); - IntersectFormats(data_provider().known_formats(), - data_provider().known_custom_formats(), - &formats, &custom_formats); - if (!data_provider().HasDataForAllFormats(formats, custom_formats)) { - if (!received_drop_) - helper_.OnDragExit(); - - // The target needs data for all the types before it can test if the - // drop is valid, but we don't have all the data. Request the data - // now. When we get back the data we'll update the target. - RequestFormats(context, formats, custom_formats, time); - - waiting_for_data_ = true; - - return TRUE; - } - } - - int drag_operation = DragDropTypes::GdkDragActionToDragOperation( - context->actions); - drag_operation = helper_.OnDragOver(*data_, root_view_location, - drag_operation); - if (!received_drop_) { - GdkDragAction gdk_action = - static_cast<GdkDragAction>( - DragDropTypes::DragOperationToGdkDragAction(drag_operation)); - gdk_drag_status(context, gdk_action, time); - } - return TRUE; -} - -void DropTargetGtk::FinishDrop(GdkDragContext* context, - gint x, gint y, guint time) { - gfx::Point root_view_location(x, y); - int drag_operation = DragDropTypes::GdkDragActionToDragOperation( - context->actions); - drag_operation = helper_.OnDrop(*data_, root_view_location, - drag_operation); - GdkDragAction gdk_action = - static_cast<GdkDragAction>( - DragDropTypes::DragOperationToGdkDragAction(drag_operation)); - gtk_drag_finish(context, gdk_action != 0, (gdk_action & GDK_ACTION_MOVE), - time); - - static_cast<WidgetGtk*>(helper_.root_view()->GetWidget())->ResetDropTarget(); - // WARNING: we've been deleted. -} - -void DropTargetGtk::IntersectFormats(int f1, const std::set<GdkAtom>& cf1, - int* f2, std::set<GdkAtom>* cf2) { - *f2 = (*f2 & f1); - std::set<GdkAtom> cf; - std::set_intersection( - cf1.begin(), cf1.end(), cf2->begin(), cf2->end(), - std::insert_iterator<std::set<GdkAtom> >(cf, cf.begin())); - cf.swap(*cf2); -} - -void DropTargetGtk::RequestFormats(GdkDragContext* context, - int formats, - const std::set<GdkAtom>& custom_formats, - guint time) { - GtkWidget* widget = - static_cast<WidgetGtk*>(helper_.root_view()->GetWidget())-> - window_contents(); - - const std::set<GdkAtom>& known_formats = - data_provider().known_custom_formats(); - if ((formats & OSExchangeData::STRING) != 0 && - (requested_formats_ & OSExchangeData::STRING) == 0) { - requested_formats_ |= OSExchangeData::STRING; - if (known_formats.count(GDK_TARGET_STRING)) { - gtk_drag_get_data(widget, context, GDK_TARGET_STRING, time); - } else if (known_formats.count(gdk_atom_intern("text/plain", false))) { - gtk_drag_get_data(widget, context, gdk_atom_intern("text/plain", false), - time); - } else if (known_formats.count(gdk_atom_intern("TEXT", false))) { - gtk_drag_get_data(widget, context, gdk_atom_intern("TEXT", false), - time); - } else if (known_formats.count(gdk_atom_intern("STRING", false))) { - gtk_drag_get_data(widget, context, gdk_atom_intern("STRING", false), - time); - } else if (known_formats.count(gdk_atom_intern("UTF8_STRING", false))) { - gtk_drag_get_data(widget, context, - gdk_atom_intern("UTF8_STRING", false), time); - } - } - if ((formats & OSExchangeData::URL) != 0 && - (requested_formats_ & OSExchangeData::URL) == 0) { - requested_formats_ |= OSExchangeData::URL; - if (known_formats.count( - GtkDndUtil::GetAtomForTarget(GtkDndUtil::CHROME_NAMED_URL))) { - gtk_drag_get_data(widget, context, - GtkDndUtil::GetAtomForTarget( - GtkDndUtil::CHROME_NAMED_URL), time); - } else if (known_formats.count( - GtkDndUtil::GetAtomForTarget(GtkDndUtil::TEXT_URI_LIST))) { - gtk_drag_get_data(widget, context, - GtkDndUtil::GetAtomForTarget( - GtkDndUtil::TEXT_URI_LIST), time); - } - } - if ((formats & OSExchangeData::FILE_CONTENTS) != 0 && - (requested_formats_ & OSExchangeData::FILE_CONTENTS) == 0) { - requested_formats_ |= OSExchangeData::FILE_CONTENTS; - NOTIMPLEMENTED(); - } - if ((formats & OSExchangeData::FILE_NAME != 0) && - (requested_formats_ & OSExchangeData::FILE_NAME) == 0) { - requested_formats_ |= OSExchangeData::FILE_NAME; - NOTIMPLEMENTED(); - } - if ((formats & OSExchangeData::HTML) != 0 && - (requested_formats_ & OSExchangeData::HTML) == 0) { - requested_formats_ |= OSExchangeData::HTML; - NOTIMPLEMENTED(); - } - for (std::set<GdkAtom>::const_iterator i = custom_formats.begin(); - i != custom_formats.end(); ++i) { - if (requested_custom_formats_.find(*i) == - requested_custom_formats_.end()) { - requested_custom_formats_.insert(*i); - gtk_drag_get_data(widget, context, *i, time); - } - } -} - -OSExchangeDataProviderGtk& DropTargetGtk::data_provider() const { - return static_cast<OSExchangeDataProviderGtk&>(data_->provider()); -} - -} // namespace views |