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EphyCommandManager — Performs commands, such as cut/copy/paste
struct EphyCommandManager; struct EphyCommandManagerIface; void ephy_command_manager_do_command (EphyCommandManager *manager, const char *command); gboolean ephy_command_manager_can_do_command (EphyCommandManager *manager, const char *command);
"command-changed" void user_function (EphyCommandManager *manager, gchar *command, gpointer user_data);
An EphyCommandManager is an interface to an EphyEmbed which is used to perform commands, such as cut/copy/paste. To perform any command, use ephy_command_manager_do_command(). To test the availability of a command, use ephy_command_manager_can_do_command(). The availability of commands depends on the selection and actions previously performed in the EphyEmbed. For instance, cmd_copy is only available if text has been selected; cmd_undo is only available if the user has a text input focused and has typed or erased some of its text.
Example 1. Copying selected text in an EphyEmbed
#include <ephy-embed.h> #include <ephy-command-manager.h> static void copy_selected_text (EphyEmbed *embed) { EphyCommandManager *manager; manager = EPHY_COMMAND_MANAGER (embed); g_return_if_fail (EPHY_IS_COMMAND_MANAGER (manager)); if (!ephy_command_manager_can_do_command (manager, "cmd_copy")) return; ephy_command_manager_do_command (manager, "cmd_copy"); }
The EphyCommandManager interface can perform any command which is defined in Mozilla. However, for purposes of abstraction, only a certain subset of commands should be used:
Available Commands
cmd_copy | Copies selected text |
cmd_cut | Cuts selected text. |
cmd_paste | Pastes text from the clipboard (for example, into a text entry) |
cmd_undo | Undoes the last action (for example, typing text into a text entry |
cmd_redo | Redoes previously undone actions (for example, in a text entry) |
struct EphyCommandManagerIface { GTypeInterface base_iface; void (* do_command) (EphyCommandManager *manager, const char *command); gboolean (* can_do_command) (EphyCommandManager *manager, const char *command); /* Signals */ void (* command_changed) (EphyCommandManager *manager, char *command); };
void ephy_command_manager_do_command (EphyCommandManager *manager, const char *command);
Performs command.
manager : | an EphyCommandManager |
command : | the command |
gboolean ephy_command_manager_can_do_command (EphyCommandManager *manager, const char *command);
Returns TRUE if command can be performed.
manager : | an EphyCommandManager |
command : | the command |
Returns : | TRUE if command can be performed. |
void user_function (EphyCommandManager *manager, gchar *command, gpointer user_data);
The ::command-changed signal is emitted when command has changed from being available to unavailable, or vice-versa. The new availability can be tested with ephy_command_manager_can_do_command().
manager : | |
command : | The command whose avalability has changed |
user_data : | user data set when the signal handler was connected. |
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