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zathura/zathura.c
Moritz Lipp 0fd6fe4f67 Navigate through pages
2009-12-26 18:16:51 +01:00

1206 lines
34 KiB
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/* See LICENSE file for license and copyright information */
#define _BSD_SOURCE || _XOPEN_SOURCE >= 500
#include <regex.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <poppler/glib/poppler.h>
#include <cairo.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
/* macros */
#define LENGTH(x) sizeof(x)/sizeof((x)[0])
/* enums */
enum { NEXT, PREVIOUS, LEFT, RIGHT, UP, DOWN,
BOTTOM, TOP, HIDE, NORMAL, HIGHLIGHT,
INSERT, VISUAL, DELETE_LAST_WORD, DEFAULT,
ERROR, WARNING, NEXT_GROUP, PREVIOUS_GROUP,
ZOOM_IN, ZOOM_OUT, ZOOM_ORIGINAL, FORWARD,
BACKWARD, ADJUST_BESTFIT, ADJUST_WIDTH };
/* typedefs */
struct CElement
{
char *value;
char *description;
struct CElement *next;
};
typedef struct CElement CompletionElement;
struct CGroup
{
char *value;
CompletionElement *elements;
struct CGroup *next;
};
typedef struct CGroup CompletionGroup;
typedef struct
{
CompletionGroup* groups;
} Completion;
typedef struct
{
char* command;
char* description;
int command_id;
gboolean is_group;
GtkWidget* row;
} CompletionRow;
typedef struct
{
int n;
void *data;
} Argument;
typedef struct
{
int mask;
int key;
void (*function)(Argument*);
int mode;
Argument argument;
} Shortcut;
typedef struct
{
int mask;
int key;
void (*function)(Argument*);
Argument argument;
} InputbarShortcut;
typedef struct
{
char* command;
char* abbr;
gboolean (*function)(int, char**);
Completion* (*completion)(char*);
char* description;
} Command;
typedef struct
{
char* regex;
void (*function)(char*, Argument*);
Argument argument;
} BufferCommand;
typedef struct
{
char identifier;
gboolean (*function)(char*, Argument*);
int always;
Argument argument;
} SpecialCommand;
typedef struct
{
PopplerPage *page;
cairo_surface_t *surface;
double scale;
int rotate;
} Page;
/* zathura */
struct
{
struct
{
GtkWindow *window;
GtkBox *box;
GtkScrolledWindow *view;
GtkWidget *statusbar;
GtkBox *statusbar_entries;
GtkEntry *inputbar;
} UI;
struct
{
GdkColor default_fg;
GdkColor default_bg;
GdkColor inputbar_fg;
GdkColor inputbar_bg;
GdkColor statusbar_fg;
GdkColor statusbar_bg;
GdkColor completion_fg;
GdkColor completion_bg;
GdkColor completion_g_bg;
GdkColor completion_g_fg;
GdkColor completion_hl_fg;
GdkColor completion_hl_bg;
GdkColor notification_e_fg;
GdkColor notification_e_bg;
GdkColor notification_w_fg;
GdkColor notification_w_bg;
PangoFontDescription *font;
} Style;
struct
{
GString *buffer;
GList *history;
int mode;
GtkLabel *status_text;
GtkLabel *status_buffer;
GtkLabel *status_state;
} Global;
struct
{
char* filename;
char* pages;
} State;
struct
{
PopplerDocument *document;
char *file;
Page *pages;
int page_number;
int number_of_pages;
} PDF;
} Zathura;
/* function declarations */
void init_zathura();
void change_mode(int);
void notify(int, char*);
void update_status();
void setCompletionRowColor(GtkBox*, int, int);
void set_page(int);
GtkEventBox* createCompletionRow(GtkBox*, char*, char*, gboolean);
/* shortcut declarations */
void sc_abort(Argument*);
void sc_adjust_window(Argument*);
void sc_change_mode(Argument*);
void sc_focus_inputbar(Argument*);
void sc_navigate(Argument*);
void sc_rotate(Argument*);
void sc_scroll(Argument*);
void sc_search(Argument*);
void sc_toggle_inputbar(Argument*);
void sc_toggle_statusbar(Argument*);
void sc_quit(Argument*);
/* inputbar shortcut declarations */
void isc_abort(Argument*);
void isc_command_history(Argument*);
void isc_completion(Argument*);
void isc_string_manipulation(Argument*);
/* command declarations */
gboolean cmd_open(int, char**);
gboolean cmd_print(int, char**);
gboolean cmd_rotate(int, char**);
gboolean cmd_quit(int, char**);
gboolean cmd_save(int, char**);
gboolean cmd_zoom(int, char**);
/* completion commands */
Completion* cc_open(char*);
/* buffer command declarations */
void bcmd_goto(char*, Argument*);
void bcmd_zoom(char*, Argument*);
/* special command delcarations */
gboolean scmd_search(char*, Argument*);
/* callback declarations */
gboolean cb_destroy(GtkWidget*, gpointer);
gboolean cb_view_kb_pressed(GtkWidget*, GdkEventKey*, gpointer);
gboolean cb_inputbar_kb_pressed(GtkWidget*, GdkEventKey*, gpointer);
gboolean cb_inputbar_activate(GtkEntry*, gpointer);
/* configuration */
#include "config.h"
/* function implementation */
void
init_zathura()
{
/* look */
gdk_color_parse(default_fgcolor, &(Zathura.Style.default_fg));
gdk_color_parse(default_bgcolor, &(Zathura.Style.default_bg));
gdk_color_parse(inputbar_fgcolor, &(Zathura.Style.inputbar_fg));
gdk_color_parse(inputbar_bgcolor, &(Zathura.Style.inputbar_bg));
gdk_color_parse(statusbar_fgcolor, &(Zathura.Style.statusbar_fg));
gdk_color_parse(statusbar_bgcolor, &(Zathura.Style.statusbar_bg));
gdk_color_parse(completion_fgcolor, &(Zathura.Style.completion_fg));
gdk_color_parse(completion_bgcolor, &(Zathura.Style.completion_bg));
gdk_color_parse(completion_g_fgcolor, &(Zathura.Style.completion_g_fg));
gdk_color_parse(completion_g_fgcolor, &(Zathura.Style.completion_g_fg));
gdk_color_parse(completion_hl_fgcolor, &(Zathura.Style.completion_hl_fg));
gdk_color_parse(completion_hl_bgcolor, &(Zathura.Style.completion_hl_bg));
gdk_color_parse(notification_e_fgcolor, &(Zathura.Style.notification_e_fg));
gdk_color_parse(notification_e_bgcolor, &(Zathura.Style.notification_e_bg));
gdk_color_parse(notification_w_fgcolor, &(Zathura.Style.notification_w_fg));
gdk_color_parse(notification_w_bgcolor, &(Zathura.Style.notification_w_bg));
Zathura.Style.font = pango_font_description_from_string(font);
/* other */
Zathura.Global.mode = NORMAL;
Zathura.State.filename = "[No Name]";
Zathura.State.pages = "";
/* UI */
Zathura.UI.window = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
Zathura.UI.box = GTK_BOX(gtk_vbox_new(FALSE, 0));
Zathura.UI.view = GTK_SCROLLED_WINDOW(gtk_scrolled_window_new(NULL, NULL));
Zathura.UI.statusbar = gtk_event_box_new();
Zathura.UI.statusbar_entries = GTK_BOX(gtk_hbox_new(FALSE, 0));
Zathura.UI.inputbar = GTK_ENTRY(gtk_entry_new());
/* window */
gtk_window_set_title(Zathura.UI.window, "zathura");
GdkGeometry hints = { 1, 1 };
gtk_window_set_geometry_hints(Zathura.UI.window, NULL, &hints, GDK_HINT_MIN_SIZE);
gtk_window_set_default_size(Zathura.UI.window, DEFAULT_WIDTH, DEFAULT_HEIGHT);
g_signal_connect(G_OBJECT(Zathura.UI.window), "destroy", G_CALLBACK(cb_destroy), NULL);
/* box */
gtk_box_set_spacing(Zathura.UI.box, 0);
gtk_container_add(GTK_CONTAINER(Zathura.UI.window), GTK_WIDGET(Zathura.UI.box));
/* view */
g_signal_connect(G_OBJECT(Zathura.UI.view), "key-press-event", G_CALLBACK(cb_view_kb_pressed), NULL);
/* statusbar */
gtk_widget_modify_bg(GTK_WIDGET(Zathura.UI.statusbar), GTK_STATE_NORMAL, &(Zathura.Style.statusbar_bg));
Zathura.Global.status_text = GTK_LABEL(gtk_label_new(NULL));
Zathura.Global.status_state = GTK_LABEL(gtk_label_new(NULL));
Zathura.Global.status_buffer = GTK_LABEL(gtk_label_new(NULL));
gtk_widget_modify_fg(GTK_WIDGET(Zathura.Global.status_text), GTK_STATE_NORMAL, &(Zathura.Style.statusbar_fg));
gtk_widget_modify_fg(GTK_WIDGET(Zathura.Global.status_state), GTK_STATE_NORMAL, &(Zathura.Style.statusbar_fg));
gtk_widget_modify_fg(GTK_WIDGET(Zathura.Global.status_buffer), GTK_STATE_NORMAL, &(Zathura.Style.statusbar_fg));
gtk_widget_modify_font(GTK_WIDGET(Zathura.Global.status_text), Zathura.Style.font);
gtk_widget_modify_font(GTK_WIDGET(Zathura.Global.status_state), Zathura.Style.font);
gtk_widget_modify_font(GTK_WIDGET(Zathura.Global.status_buffer), Zathura.Style.font);
gtk_misc_set_alignment(GTK_MISC(Zathura.Global.status_text), 0.0, 0.0);
gtk_misc_set_alignment(GTK_MISC(Zathura.Global.status_state), 1.0, 0.0);
gtk_misc_set_alignment(GTK_MISC(Zathura.Global.status_buffer), 1.0, 0.0);
gtk_misc_set_padding(GTK_MISC(Zathura.Global.status_text), 2.0, 4.0);
gtk_misc_set_padding(GTK_MISC(Zathura.Global.status_state), 2.0, 4.0);
gtk_misc_set_padding(GTK_MISC(Zathura.Global.status_buffer), 2.0, 4.0);
gtk_label_set_use_markup(Zathura.Global.status_text, TRUE);
gtk_label_set_use_markup(Zathura.Global.status_state, TRUE);
gtk_label_set_use_markup(Zathura.Global.status_buffer, TRUE);
gtk_box_pack_start(Zathura.UI.statusbar_entries, GTK_WIDGET(Zathura.Global.status_text), TRUE, TRUE, 2);
gtk_box_pack_start(Zathura.UI.statusbar_entries, GTK_WIDGET(Zathura.Global.status_buffer), FALSE, FALSE, 2);
gtk_box_pack_start(Zathura.UI.statusbar_entries, GTK_WIDGET(Zathura.Global.status_state), FALSE, FALSE, 2);
gtk_container_add(GTK_CONTAINER(Zathura.UI.statusbar), GTK_WIDGET(Zathura.UI.statusbar_entries));
/* inputbar */
gtk_entry_set_inner_border(Zathura.UI.inputbar, NULL);
gtk_entry_set_has_frame( Zathura.UI.inputbar, FALSE);
gtk_editable_set_editable( GTK_EDITABLE(Zathura.UI.inputbar), TRUE);
gtk_widget_modify_base(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.inputbar_bg));
gtk_widget_modify_text(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.inputbar_fg));
gtk_widget_modify_font(GTK_WIDGET(Zathura.UI.inputbar), Zathura.Style.font);
g_signal_connect(G_OBJECT(Zathura.UI.inputbar), "key-press-event", G_CALLBACK(cb_inputbar_kb_pressed), NULL);
g_signal_connect(G_OBJECT(Zathura.UI.inputbar), "activate", G_CALLBACK(cb_inputbar_activate), NULL);
/* packing */
gtk_box_pack_start(Zathura.UI.box, GTK_WIDGET(Zathura.UI.view), TRUE, TRUE, 0);
gtk_box_pack_start(Zathura.UI.box, GTK_WIDGET(Zathura.UI.statusbar), FALSE, FALSE, 0);
gtk_box_pack_end( Zathura.UI.box, GTK_WIDGET(Zathura.UI.inputbar), FALSE, FALSE, 0);
}
void
change_mode(int mode)
{
char* mode_text;
switch(mode)
{
case INSERT:
mode_text = "-- INSERT --";
gtk_editable_set_editable( GTK_EDITABLE(Zathura.UI.inputbar), FALSE);
break;
case VISUAL:
mode_text = "-- VISUAL --";
gtk_editable_set_editable( GTK_EDITABLE(Zathura.UI.inputbar), FALSE);
break;
default:
mode_text = "";
mode = NORMAL;
gtk_editable_set_editable( GTK_EDITABLE(Zathura.UI.inputbar), TRUE);
break;
}
Zathura.Global.mode = mode;
notify(DEFAULT, mode_text);
}
void notify(int level, char* message)
{
switch(level)
{
case ERROR:
gtk_widget_modify_base(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.notification_e_bg));
gtk_widget_modify_text(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.notification_e_fg));
break;
case WARNING:
gtk_widget_modify_base(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.notification_w_bg));
gtk_widget_modify_text(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.notification_w_fg));
break;
default:
gtk_widget_modify_base(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.inputbar_bg));
gtk_widget_modify_text(GTK_WIDGET(Zathura.UI.inputbar), GTK_STATE_NORMAL, &(Zathura.Style.inputbar_fg));
break;
}
if(message)
gtk_entry_set_text(Zathura.UI.inputbar, message);
gtk_editable_set_editable( GTK_EDITABLE(Zathura.UI.inputbar), FALSE);
}
void
update_status()
{
/* update text */
gtk_label_set_markup((GtkLabel*) Zathura.Global.status_text, Zathura.State.filename);
/* update state */
gtk_label_set_markup((GtkLabel*) Zathura.Global.status_state, Zathura.State.pages);
}
GtkEventBox*
createCompletionRow(GtkBox* results, char* command, char* description, gboolean group)
{
GtkBox *col = GTK_BOX(gtk_hbox_new(FALSE, 0));
GtkEventBox *row = GTK_EVENT_BOX(gtk_event_box_new());
GtkLabel *show_command = GTK_LABEL(gtk_label_new(NULL));
GtkLabel *show_description = GTK_LABEL(gtk_label_new(NULL));
gtk_misc_set_alignment(GTK_MISC(show_command), 0.0, 0.0);
gtk_misc_set_alignment(GTK_MISC(show_description), 0.0, 0.0);
if(group)
{
gtk_misc_set_padding(GTK_MISC(show_command), 2.0, 4.0);
gtk_misc_set_padding(GTK_MISC(show_description), 2.0, 4.0);
}
else
{
gtk_misc_set_padding(GTK_MISC(show_command), 1.0, 1.0);
gtk_misc_set_padding(GTK_MISC(show_description), 1.0, 1.0);
}
gtk_label_set_use_markup(show_command, TRUE),
gtk_label_set_use_markup(show_description, TRUE),
gtk_label_set_markup(show_command, g_markup_printf_escaped(FORMAT_COMMAND, command ? command : ""));
gtk_label_set_markup(show_description, g_markup_printf_escaped(FORMAT_DESCRIPTION, description ? description : ""));
if(group)
{
gtk_widget_modify_fg(GTK_WIDGET(show_command), GTK_STATE_NORMAL, &(Zathura.Style.completion_g_fg));
gtk_widget_modify_fg(GTK_WIDGET(show_description), GTK_STATE_NORMAL, &(Zathura.Style.completion_g_fg));
gtk_widget_modify_bg(GTK_WIDGET(row), GTK_STATE_NORMAL, &(Zathura.Style.completion_g_bg));
}
else
{
gtk_widget_modify_fg(GTK_WIDGET(show_command), GTK_STATE_NORMAL, &(Zathura.Style.completion_fg));
gtk_widget_modify_fg(GTK_WIDGET(show_description), GTK_STATE_NORMAL, &(Zathura.Style.completion_fg));
gtk_widget_modify_bg(GTK_WIDGET(row), GTK_STATE_NORMAL, &(Zathura.Style.completion_bg));
}
gtk_widget_modify_font(GTK_WIDGET(show_command), Zathura.Style.font);
gtk_widget_modify_font(GTK_WIDGET(show_description), Zathura.Style.font);
gtk_box_pack_start(GTK_BOX(col), GTK_WIDGET(show_command), TRUE, TRUE, 2);
gtk_box_pack_start(GTK_BOX(col), GTK_WIDGET(show_description), FALSE, FALSE, 2);
gtk_container_add(GTK_CONTAINER(row), GTK_WIDGET(col));
gtk_box_pack_start(results, GTK_WIDGET(row), FALSE, FALSE, 0);
return row;
}
void
setCompletionRowColor(GtkBox* results, int mode, int id)
{
GtkEventBox *row = (GtkEventBox*) g_list_nth_data(gtk_container_get_children(GTK_CONTAINER(results)), id);
if(row)
{
GtkBox *col = (GtkBox*) g_list_nth_data(gtk_container_get_children(GTK_CONTAINER(row)), 0);
GtkLabel *cmd = (GtkLabel*) g_list_nth_data(gtk_container_get_children(GTK_CONTAINER(col)), 0);
GtkLabel *cdesc = (GtkLabel*) g_list_nth_data(gtk_container_get_children(GTK_CONTAINER(col)), 1);
if(mode == NORMAL)
{
gtk_widget_modify_fg(GTK_WIDGET(cmd), GTK_STATE_NORMAL, &(Zathura.Style.completion_fg));
gtk_widget_modify_fg(GTK_WIDGET(cdesc), GTK_STATE_NORMAL, &(Zathura.Style.completion_fg));
gtk_widget_modify_bg(GTK_WIDGET(row), GTK_STATE_NORMAL, &(Zathura.Style.completion_bg));
}
else
{
gtk_widget_modify_fg(GTK_WIDGET(cmd), GTK_STATE_NORMAL, &(Zathura.Style.completion_hl_fg));
gtk_widget_modify_fg(GTK_WIDGET(cdesc), GTK_STATE_NORMAL, &(Zathura.Style.completion_hl_fg));
gtk_widget_modify_bg(GTK_WIDGET(row), GTK_STATE_NORMAL, &(Zathura.Style.completion_hl_bg));
}
}
}
void
set_page(int page)
{
if(page > Zathura.PDF.number_of_pages || page < 0)
{
notify(WARNING, "Could not open page");
return;
}
Zathura.PDF.page_number = page;
Zathura.State.pages = g_strdup_printf("[%i/%i]", page + 1, Zathura.PDF.number_of_pages);
}
/* shortcut implementation */
void
sc_abort(Argument* argument)
{
/* Clear buffer */
if(Zathura.Global.buffer)
{
g_string_free(Zathura.Global.buffer, TRUE);
Zathura.Global.buffer = NULL;
gtk_label_set_markup((GtkLabel*) Zathura.Global.status_buffer, "");
}
/* Set back to normal mode */
change_mode(NORMAL);
}
void
sc_adjust_window(Argument* argument)
{
}
void
sc_change_mode(Argument* argument)
{
if(argument)
change_mode(argument->n);
}
void
sc_focus_inputbar(Argument* argument)
{
if(argument->data)
{
notify(DEFAULT, argument->data);
gtk_widget_grab_focus(GTK_WIDGET(Zathura.UI.inputbar));
gtk_editable_set_position(GTK_EDITABLE(Zathura.UI.inputbar), -1);
gtk_editable_set_editable( GTK_EDITABLE(Zathura.UI.inputbar), TRUE);
}
}
void
sc_navigate(Argument* argument)
{
if(!Zathura.PDF.document)
return;
int number_of_pages = Zathura.PDF.number_of_pages;
int new_page = Zathura.PDF.page_number;
if(argument->n == NEXT)
new_page = (new_page + number_of_pages + 1) % number_of_pages;
else if(argument->n == PREVIOUS)
new_page = (new_page + number_of_pages - 1) % number_of_pages;
set_page(new_page);
update_status();
}
void
sc_rotate(Argument* argument)
{
}
void
sc_scroll(Argument* argument)
{
}
void
sc_search(Argument* argument)
{
}
void
sc_toggle_inputbar(Argument* argument)
{
if(GTK_WIDGET_VISIBLE(GTK_WIDGET(Zathura.UI.inputbar)))
gtk_widget_hide(GTK_WIDGET(Zathura.UI.inputbar));
else
gtk_widget_show(GTK_WIDGET(Zathura.UI.inputbar));
}
void
sc_toggle_statusbar(Argument* argument)
{
if(GTK_WIDGET_VISIBLE(GTK_WIDGET(Zathura.UI.statusbar)))
gtk_widget_hide(GTK_WIDGET(Zathura.UI.statusbar));
else
gtk_widget_show(GTK_WIDGET(Zathura.UI.statusbar));
}
void
sc_quit(Argument* argument)
{
cb_destroy(NULL, NULL);
}
/* inputbar shortcut declarations */
void
isc_abort(Argument* argument)
{
Argument arg = { HIDE };
isc_completion(&arg);
notify(DEFAULT, "");
gtk_widget_grab_focus(GTK_WIDGET(Zathura.UI.view));
}
void
isc_command_history(Argument* argument)
{
static int current = 0;
int length = g_list_length(Zathura.Global.history);
if(length > 0)
{
if(argument->n == NEXT)
current = (length + current + 1) % length;
else
current = (length + current - 1) % length;
gchar* command = (gchar*) g_list_nth_data(Zathura.Global.history, current);
notify(DEFAULT, command);
gtk_widget_grab_focus(GTK_WIDGET(Zathura.UI.inputbar));
gtk_editable_set_position(GTK_EDITABLE(Zathura.UI.inputbar), -1);
}
}
void
isc_completion(Argument* argument)
{
gchar *input = gtk_editable_get_chars(GTK_EDITABLE(Zathura.UI.inputbar), 1, -1);
gchar identifier = gtk_editable_get_chars(GTK_EDITABLE(Zathura.UI.inputbar), 0, 1)[0];
int length = strlen(input);
if(!length && !identifier)
return;
/* get current information*/
char* first_space = strstr(input, " ");
char* current_command;
char* current_parameter;
int current_command_length;
int current_parameter_length;
if(!first_space)
{
current_command = input;
current_command_length = length;
current_parameter = NULL;
current_parameter_length = 0;
}
else
{
int offset = abs(input - first_space);
current_command = g_strndup(input, offset);
current_command_length = strlen(current_command);
current_parameter = input + offset + 1;
current_parameter_length = strlen(current_parameter);
}
/* if the identifier does not match the command sign and
* the completion should not be hidden, leave this function */
if((identifier != ':') && (argument->n != HIDE))
return;
/* static elements */
static GtkBox *results = NULL;
static CompletionRow *rows = NULL;
static int current_item = 0;
static int n_items = 0;
static char *previous_command = NULL;
static char *previous_parameter = NULL;
static int previous_id = 0;
static int previous_length = 0;
static gboolean command_mode = TRUE;
/* delete old list iff
* the completion should be hidden
* the current command differs from the previous one
* the current parameter differs from the previous one
*/
if( (argument->n == HIDE) ||
(current_parameter && previous_parameter && strcmp(current_parameter, previous_parameter)) ||
(current_command && previous_command && strcmp(current_command, previous_command)) ||
(previous_length != length)
)
{
if(results)
gtk_widget_destroy(GTK_WIDGET(results));
results = NULL;
if(rows)
free(rows);
rows = NULL;
current_item = 0;
n_items = 0;
command_mode = TRUE;
if(argument->n == HIDE)
return;
}
/* create new list iff
* there is no current list
* the current command differs from the previous one
* the current parameter differs from the previous one
*/
if( (!results) )
{
results = GTK_BOX(gtk_vbox_new(FALSE, 0));
/* create list based on parameters iff
* there is a current parameter given
* there is an old list with commands
* the current command does not differ from the previous one
* the current command has an completion function
*/
if( (previous_command) && (current_parameter) && !strcmp(current_command, previous_command) )
{
if(previous_id < 0 || !commands[previous_id].completion)
return;
Completion *result = commands[previous_id].completion(current_parameter);
if(!result && result->groups)
return;
command_mode = FALSE;
CompletionGroup* group;
CompletionElement* element;
rows = malloc(sizeof(CompletionRow));
for(group = result->groups; group != NULL; group = group->next)
{
int group_elements = 0;
for(element = group->elements; element != NULL; element = element->next)
{
if( (element->value) &&
(current_parameter_length <= strlen(element->value)) && !strncmp(current_parameter, element->value, current_parameter_length)
)
{
rows = realloc(rows, (n_items + 1) * sizeof(CompletionRow));
rows[n_items].command = element->value;
rows[n_items].description = element->description;
rows[n_items].command_id = previous_id;
rows[n_items].is_group = FALSE;
rows[n_items++].row = GTK_WIDGET(createCompletionRow(results, element->value, element->description, FALSE));
group_elements++;
}
}
if(group->value && group_elements > 0)
{
rows = realloc(rows, (n_items + 1) * sizeof(CompletionRow));
rows[n_items].command = group->value;
rows[n_items].description = NULL;
rows[n_items].command_id = -1;
rows[n_items].is_group = TRUE;
rows[n_items].row = GTK_WIDGET(createCompletionRow(results, group->value, NULL, TRUE));
/* Swap group element with first element of the list */
CompletionRow temp = rows[n_items - group_elements];
gtk_box_reorder_child(results, rows[n_items].row, n_items - group_elements);
rows[n_items - group_elements] = rows[n_items];
rows[n_items] = temp;
n_items++;
}
}
/* clean up */
group = result->groups;
while(group)
{
element = group->elements;
while(element)
{
CompletionElement* ne = element->next;
free(element);
element = ne;
}
CompletionGroup *ng = group->next;
free(group);
group = ng;
}
}
/* create list based on commands */
else
{
int i = 0;
command_mode = TRUE;
rows = malloc(LENGTH(commands) * sizeof(CompletionRow));
for(i = 0; i < LENGTH(commands); i++)
{
int abbr_length = strlen(commands[i].abbr);
int cmd_length = strlen(commands[i].command);
/* add command to list iff
* the current command would match the command
* the current command would match the abbreviation
*/
if( ((current_command_length <= cmd_length) && !strncmp(current_command, commands[i].command, current_command_length)) ||
((current_command_length <= abbr_length) && !strncmp(current_command, commands[i].abbr, current_command_length))
)
{
rows[n_items].command = commands[i].command;
rows[n_items].description = commands[i].description;
rows[n_items].command_id = i;
rows[n_items].is_group = FALSE;
rows[n_items++].row = GTK_WIDGET(createCompletionRow(results, commands[i].command, commands[i].description, FALSE));
}
}
rows = realloc(rows, n_items * sizeof(CompletionRow));
}
gtk_box_pack_start(Zathura.UI.box, GTK_WIDGET(results), FALSE, FALSE, 0);
gtk_widget_show_all(GTK_WIDGET(Zathura.UI.window));
current_item = (argument->n == NEXT) ? -1 : 0;
}
/* update coloring iff
* there is a list with items
*/
if( (results) && (n_items > 0) )
{
setCompletionRowColor(results, NORMAL, current_item);
char* temp;
int i = 0, next_group = 0;
for(i = 0; i < n_items; i++)
{
if(argument->n == NEXT || argument->n == NEXT_GROUP)
current_item = (current_item + n_items + 1) % n_items;
else if(argument->n == PREVIOUS || argument->n == PREVIOUS_GROUP)
current_item = (current_item + n_items - 1) % n_items;
if(rows[current_item].is_group)
{
if(!command_mode && (argument->n == NEXT_GROUP || argument->n == PREVIOUS_GROUP))
next_group = 1;
continue;
}
else
{
if(!command_mode && (next_group == 0) && (argument->n == NEXT_GROUP || argument->n == PREVIOUS_GROUP))
continue;
break;
}
}
setCompletionRowColor(results, HIGHLIGHT, current_item);
if(command_mode)
{
char* cp = (current_parameter) ? g_strconcat(" ", current_parameter, NULL) : 0;
temp = g_strconcat(":", rows[current_item].command, cp, NULL);
}
else
{
temp = g_strconcat(":", previous_command, " ", rows[current_item].command, NULL);
}
gtk_entry_set_text(Zathura.UI.inputbar, temp);
gtk_editable_set_position(GTK_EDITABLE(Zathura.UI.inputbar), -1);
g_free(temp);
previous_command = (command_mode) ? rows[current_item].command : current_command;
previous_parameter = (command_mode) ? current_parameter : rows[current_item].command;
previous_length = strlen(previous_command) + ((command_mode) ? (length - current_command_length) : (strlen(previous_parameter) + 1));
previous_id = rows[current_item].command_id;
}
}
void
isc_string_manipulation(Argument* argument)
{
if(argument->n == DELETE_LAST_WORD)
{
gchar *input = gtk_editable_get_chars(GTK_EDITABLE(Zathura.UI.inputbar), 0, -1);
int length = strlen(input);
int i = 0;
for(i = length; i > 0; i--)
{
if( (input[i] == ' ') ||
(input[i] == '/') )
{
if(i == (length - 1))
continue;
i = (input[i] == ' ') ? (i - 1) : i;
break;
}
}
notify(DEFAULT, g_strndup(input, i + 1));
gtk_editable_set_position(GTK_EDITABLE(Zathura.UI.inputbar), -1);
}
}
/* command implementation */
gboolean
cmd_open(int argc, char** argv)
{
if(argc == 0 || strlen(argv[0]) == 0)
return FALSE;
/* get filename */
char* file = realpath(argv[0], NULL);
if(argv[0][0] == '~')
{
// file = realloc(file, ((int) strlen(argv[0]) + (int) strlen(getenv("HOME")) - 1) * sizeof(char));
file = g_strdup_printf("%s%s", getenv("HOME"), argv[0] + 1);
}
/* check if file exists */
if(!g_file_test(file, G_FILE_TEST_IS_REGULAR))
{
notify(ERROR, "File does not exist");
return FALSE;
}
/* open file */
Zathura.PDF.document = poppler_document_new_from_file(g_strdup_printf("file://%s", file),
(argc == 2) ? argv[1] : NULL, NULL);
if(!Zathura.PDF.document)
{
notify(ERROR, "Can not open file");
return FALSE;
}
Zathura.PDF.number_of_pages = poppler_document_get_n_pages(Zathura.PDF.document);
Zathura.PDF.file = file;
Zathura.State.filename = file;
set_page(0);
update_status();
return TRUE;
}
gboolean
cmd_print(int argc, char** argv)
{
return TRUE;
}
gboolean
cmd_rotate(int argc, char** argv)
{
return TRUE;
}
gboolean
cmd_quit(int argc, char** argv)
{
cb_destroy(NULL, NULL);
return TRUE;
}
gboolean
cmd_save(int argc, char** argv)
{
return TRUE;
}
gboolean
cmd_zoom(int argc, char** argv)
{
return TRUE;
}
/* completion command implementation */
Completion* cc_open(char* input)
{
Completion *completion = malloc(sizeof(Completion));
CompletionGroup* group = malloc(sizeof(CompletionGroup));
CompletionElement *el1 = malloc(sizeof(CompletionElement));
CompletionElement *el2 = malloc(sizeof(CompletionElement));
CompletionElement *el3 = malloc(sizeof(CompletionElement));
CompletionElement *el4 = malloc(sizeof(CompletionElement));
CompletionElement *el5 = malloc(sizeof(CompletionElement));
CompletionElement *el6 = malloc(sizeof(CompletionElement));
CompletionGroup* g2 = malloc(sizeof(CompletionGroup));
el1->value = "Word 1";
el1->description = NULL;
el1->next = (CompletionElement*) el2;
el2->value = "Word 2";
el2->description = NULL;
el2->next = (CompletionElement*) el3;
el3->value = "Word 3";
el3->description = NULL;
el3->next = NULL;
el4->value = "Word 4";
el4->description = NULL;
el4->next = (CompletionElement*) el5;
el5->value = "Word 5";
el5->description = NULL;
el5->next = (CompletionElement*) el6;
el6->value = "Word 6";
el6->description = NULL;
el6->next = NULL;
group->value = "Group 1";
group->elements = el1;
group->next = g2;
g2->value = "Group 2";
g2->elements = el4;
g2->next = NULL;
completion->groups = group;
return completion;
}
/* buffer command implementation */
void
bcmd_goto(char* buffer, Argument* argument)
{
}
void
bcmd_zoom(char* buffer, Argument* argument)
{
}
/* special command implementation */
gboolean
scmd_search(char* input, Argument* argument)
{
return TRUE;
}
/* callback implementation */
gboolean
cb_destroy(GtkWidget* widget, gpointer data)
{
pango_font_description_free(Zathura.Style.font);
gtk_main_quit();
return TRUE;
}
gboolean
cb_view_kb_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
int i;
for(i = 0; i < LENGTH(shortcuts); i++)
{
if (event->keyval == shortcuts[i].key &&
(((event->state & shortcuts[i].mask) == shortcuts[i].mask) || shortcuts[i].mask == 0)
&& (Zathura.Global.mode == shortcuts[i].mode || shortcuts[i].mode == -1))
{
shortcuts[i].function(&(shortcuts[i].argument));
return TRUE;
}
}
/* append only numbers and characters to buffer */
if( (event->keyval >= 0x30) && (event->keyval <= 0x7A))
{
if(!Zathura.Global.buffer)
Zathura.Global.buffer = g_string_new("");
Zathura.Global.buffer = g_string_append_c(Zathura.Global.buffer, event->keyval);
gtk_label_set_markup((GtkLabel*) Zathura.Global.status_buffer, Zathura.Global.buffer->str);
}
/* search buffer commands */
if(Zathura.Global.buffer)
{
for(i = 0; i < LENGTH(buffer_commands); i++)
{
regex_t regex;
int status;
regcomp(&regex, buffer_commands[i].regex, REG_EXTENDED);
status = regexec(&regex, Zathura.Global.buffer->str, (size_t) 0, NULL, 0);
regfree(&regex);
if(status == 0)
{
buffer_commands[i].function(Zathura.Global.buffer->str, &(buffer_commands[i].argument));
g_string_free(Zathura.Global.buffer, TRUE);
Zathura.Global.buffer = NULL;
gtk_label_set_markup((GtkLabel*) Zathura.Global.status_buffer, "");
return TRUE;
}
}
}
return FALSE;
}
gboolean
cb_inputbar_kb_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
int i;
/* inputbar shortcuts */
for(i = 0; i < LENGTH(inputbar_shortcuts); i++)
{
if(event->keyval == inputbar_shortcuts[i].key &&
(((event->state & inputbar_shortcuts[i].mask) == inputbar_shortcuts[i].mask)
|| inputbar_shortcuts[i].mask == 0))
{
inputbar_shortcuts[i].function(&(inputbar_shortcuts[i].argument));
return TRUE;
}
}
/* special commands */
char identifier = gtk_editable_get_chars(GTK_EDITABLE(Zathura.UI.inputbar), 0, 1)[0];
for(i = 0; i < LENGTH(special_commands); i++)
{
if((identifier == special_commands[i].identifier) &&
(special_commands[i].always == 1))
{
gchar *input = gtk_editable_get_chars(GTK_EDITABLE(Zathura.UI.inputbar), 1, -1);
special_commands[i].function(input, &(special_commands[i].argument));
return FALSE;
}
}
return FALSE;
}
gboolean
cb_inputbar_activate(GtkEntry* entry, gpointer data)
{
gchar *input = gtk_editable_get_chars(GTK_EDITABLE(entry), 1, -1);
gchar **tokens = g_strsplit(input, " ", -1);
gchar *command = tokens[0];
int length = g_strv_length(tokens);
int i = 0;
gboolean retv = FALSE;
/* no input */
if(length < 1)
{
isc_abort(NULL);
return FALSE;
}
/* special commands */
char identifier = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, 1)[0];
for(i = 0; i < LENGTH(special_commands); i++)
{
if(identifier == special_commands[i].identifier)
{
retv = special_commands[i].function(input, &(special_commands[i].argument));
if(retv) isc_abort(NULL);
gtk_widget_grab_focus(GTK_WIDGET(Zathura.UI.view));
return TRUE;
}
}
/* search commands */
for(i = 0; i < LENGTH(commands); i++)
{
if((g_strcmp0(command, commands[i].command) == 0) ||
(g_strcmp0(command, commands[i].abbr) == 0))
{
retv = commands[i].function(length - 1, tokens + 1);
break;
}
}
/* append input to the command history */
Zathura.Global.history = g_list_append(Zathura.Global.history, g_strdup(gtk_entry_get_text(entry)));
if(retv) isc_abort(NULL);
gtk_widget_grab_focus(GTK_WIDGET(Zathura.UI.view));
return TRUE;
}
/* main function */
int main(int argc, char* argv[])
{
gtk_init(&argc, &argv);
init_zathura();
update_status();
gtk_widget_show_all(GTK_WIDGET(Zathura.UI.window));
gtk_main();
return 0;
}
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