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// 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.
#ifndef CHROMEOS_DBUS_IBUS_IBUS_LOOKUP_TABLE_H_
#define CHROMEOS_DBUS_IBUS_IBUS_LOOKUP_TABLE_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "chromeos/chromeos_export.h"
namespace dbus {
class MessageWriter;
class MessageReader;
} // namespace dbus
namespace chromeos {
// TODO(nona): Remove ibus namespace after complete libibus removal.
namespace ibus {
// The IBusLookupTable is one of IBusObjects. IBusLookupTable contains IBusTexts
// but all of them are used as plain string. The overview of each data
// strucutres is as follows:
//
// DATA STRUCTURE OVERVIEW:
// variant struct {
// string "IBusLookupTable"
// array [
// dict_entry (
// string "window_show_at_composition"
// variant variant boolean false
// ]
// )
// ]
// uint32 9 // Page size
// uint32 1 // Cursor position
// boolean true // Cursor visibility.
// boolean true // Round lookup table or not. Not used in Chrome.
// int32 1 // Orientation
// array [ // Array of candidate text.
// variant struct {
// string "IBusText"
// array []
// string "Candidate Text"
// variant struct {
// string "IBusAttrList"
// array []
// array []
// }
// }
// ... more IBusTexts
// ]
// array [ // Array of label text
// variant struct {
// string "IBusText"
// array []
// string "1"
// variant struct {
// string "IBusAttrList"
// array []
// array []
// }
// }
// ... more IBusTexts
// ]
// }
// TODO(nona): Clean up the structure.(crbug.com/129403)
class IBusLookupTable;
// Pops a IBusLookupTable from |reader|.
// Returns false if an error occures.
bool CHROMEOS_EXPORT PopIBusLookupTable(dbus::MessageReader* reader,
IBusLookupTable* table);
// Appends a IBusLookupTable to |writer| except mozc_candidates_ in |table|.
void CHROMEOS_EXPORT AppendIBusLookupTable(const IBusLookupTable& table,
dbus::MessageWriter* writer);
// An representation of IBusLookupTable object which is used in dbus
// communication with ibus-daemon.
class CHROMEOS_EXPORT IBusLookupTable {
public:
enum Orientation {
IBUS_LOOKUP_TABLE_ORIENTATION_HORIZONTAL = 0,
IBUS_LOOKUP_TABLE_ORIENTATION_VERTICAL = 1,
};
// Represents a candidate entry. In dbus communication, each
// field is represented as IBusText, but attributes are not used in Chrome.
// So just simple string is sufficient in this case.
struct Entry {
Entry();
virtual ~Entry();
std::string value;
std::string label;
std::string annotation;
std::string description_title;
std::string description_body;
};
IBusLookupTable();
virtual ~IBusLookupTable();
// Returns the number of candidates in one page.
uint32 page_size() const { return page_size_; }
void set_page_size(uint32 page_size) { page_size_ = page_size; }
// Returns the cursor index of the currently selected candidate.
uint32 cursor_position() const { return cursor_position_; }
void set_cursor_position(uint32 cursor_position) {
cursor_position_ = cursor_position;
}
// Returns true if the cusros is visible.
bool is_cursor_visible() const { return is_cursor_visible_; }
void set_is_cursor_visible(bool is_cursor_visible) {
is_cursor_visible_ = is_cursor_visible;
}
// Returns the orientation of lookup table.
Orientation orientation() const { return orientation_; }
void set_orientation(Orientation orientation) {
orientation_ = orientation;
}
const std::vector<Entry>& candidates() const { return candidates_; }
std::vector<Entry>* mutable_candidates() { return &candidates_; }
bool show_window_at_composition() const {
return show_window_at_composition_;
}
void set_show_window_at_composition(bool show_window_at_composition) {
show_window_at_composition_ = show_window_at_composition;
}
private:
uint32 page_size_;
uint32 cursor_position_;
bool is_cursor_visible_;
Orientation orientation_;
std::vector<Entry> candidates_;
bool show_window_at_composition_;
DISALLOW_COPY_AND_ASSIGN(IBusLookupTable);
};
} // namespace ibus
} // namespace chromeos
#endif // CHROMEOS_DBUS_IBUS_IBUS_LOOKUP_TABLE_H_
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