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fiv/fiv.c
Přemysl Eric Janouch 701846ab39
Support opening collections of files 
Implement a process-local VFS to enable grouping together arbitrary
URIs passed via program arguments, DnD, or the file open dialog.

This VFS contains FivCollectionFile objects, which act as "simple"
proxies over arbitrary GFiles.  Their true URIs may be retrieved
through the "standard::target-uri" attribute, in a similar way to
GVfs's "recent" and "trash" backends.

(The main reason we proxy rather than just hackishly return foreign
GFiles from the VFS is that loading them would switch the current
directory, and break iteration as a result.

We could also keep the collection outside of GVfs, but that would
result in considerable special-casing, and the author wouldn't gain
intimate knowledge of GIO.)

There is no perceived need to keep old collections when opening
new ones, so we simply change and reload the contents when needed.

Similarly, there is no intention to make the VFS writeable.

The process-locality of this and other URI schemes has proven to be
rather annoying when passing files to other applications,
however most of the resulting complexity appears to be essential
rather than accidental.

Note that the GTK+ file chooser widget is retarded, and doesn't
recognize URIs that lack the authority part in the location bar.
2022-08-08 18:06:50 +02:00

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//
// fiv.c: fuck-if-I-know-how-to-name-it image browser and viewer
//
// Copyright (c) 2021 - 2022, Přemysl Eric Janouch <p@janouch.name>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
#include <glib.h>
#include <glib/gstdio.h>
#include <gtk/gtk.h>
#ifdef GDK_WINDOWING_QUARTZ
#include <gdk/gdkquartz.h>
#endif // GDK_WINDOWING_QUARTZ
#include <errno.h>
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef G_OS_WIN32
#include <io.h>
#include <fcntl.h>
#endif // G_OS_WIN32
#include "config.h"
#include "fiv-browser.h"
#include "fiv-collection.h"
#include "fiv-io.h"
#include "fiv-sidebar.h"
#include "fiv-thumbnail.h"
#include "fiv-view.h"
// --- Utilities ---------------------------------------------------------------
static void exit_fatal(const char *format, ...) G_GNUC_PRINTF(1, 2);
static void
exit_fatal(const char *format, ...)
{
va_list ap;
va_start(ap, format);
gchar *format_nl = g_strdup_printf("%s\n", format);
vfprintf(stderr, format_nl, ap);
free(format_nl);
va_end(ap);
exit(EXIT_FAILURE);
}
static gchar **
slist_to_strv(GSList *slist)
{
gchar **strv = g_malloc0_n(g_slist_length(slist) + 1, sizeof *strv),
**p = strv;
for (GSList *link = slist; link; link = link->next)
*p++ = link->data;
g_slist_free(slist);
return strv;
}
// --- Keyboard shortcuts ------------------------------------------------------
// Fuck XML, this can be easily represented in static structures.
// Though it would be nice if the accelerators could be customized.
struct key {
const char *accelerator;
const char *title;
};
struct key_group {
const char *title;
const struct key *keys;
};
struct key_section {
const char *title;
const char *section_name;
const struct key_group *groups;
};
static struct key help_keys_general[] = {
{"F1", "Show help"},
{"F10", "Open menu"},
{"<Control>comma", "Preferences"},
{"<Control>question", "Keyboard shortcuts"},
{"q <Control>q", "Quit"},
{"<Control>w", "Quit"},
{}
};
static struct key help_keys_navigation[] = {
{"<Control>l", "Open location..."},
{"<Control>n", "Open a new window"},
{"<Alt>Left", "Go back in history"},
{"<Alt>Right", "Go forward in history"},
{}
};
static struct key help_keys_view[] = {
{"F11 f", "Toggle fullscreen"},
{"<Alt><Shift>d", "Toggle dark theme variant"},
{}
};
static struct key_group help_keys_browser[] = {
{"General", help_keys_general},
{"General: Navigation", help_keys_navigation},
{"General: View", help_keys_view},
{"Navigation", (struct key[]) {
{"<Alt>Up", "Go to parent directory"},
{"<Alt>Home", "Go home"},
{"Return", "Open selected item"},
{"<Alt>Return", "Show file information"},
{}
}},
{"View", (struct key[]) {
{"F9", "Toggle navigation sidebar"},
{"F5 r <Control>r", "Reload"},
{"h <Control>h", "Toggle hiding unsupported files"},
{"<Control>plus", "Larger thumbnails"},
{"<Control>minus", "Smaller thumbnails"},
{}
}},
{}
};
static struct key_group help_keys_viewer[] = {
{"General", help_keys_general},
{"General: Navigation", help_keys_navigation},
{"General: View", help_keys_view},
{"Navigation", (struct key[]) {
{"Left Up Page_Up", "Previous image"},
{"Right Down Page_Down", "Next image"},
{"Escape Return", "Return to browser"},
{}
}},
{"View", (struct key[]) {
{"F8", "Toggle toolbar"},
{"F5 r <Primary>r", "Reload"},
{}
}},
{"Zoom", (struct key[]) {
{"<Primary>0", "Set zoom to 100%"},
{"1...9", "Set zoom to N:1"},
{"plus <Primary>plus", "Zoom in"},
{"minus <Primary>minus", "Zoom out"},
{"w", "Zoom to fit width if larger"},
{"h", "Zoom to fit height if larger"},
{}
}},
{"Orientation", (struct key[]) {
{"less", "Rotate anticlockwise"},
{"equal", "Mirror"},
{"greater", "Rotate clockwise"},
{}
}},
{"Configuration", (struct key[]) {
{"k", "Toggle keeping zoom and position"},
{"x", "Toggle scale to fit if larger"},
#ifdef HAVE_LCMS2
{"c", "Toggle color management"},
#endif
{"i", "Toggle smooth scaling"},
{"t", "Toggle transparency highlighting"},
#ifdef HAVE_JPEG_QS
{"e", "Toggle low-quality JPEG enhancement"},
#endif
{}
}},
{"Control", (struct key[]) {
{"bracketleft", "Previous page"},
{"bracketright", "Next page"},
{"braceleft", "Previous frame"},
{"braceright", "Next frame"},
{"space", "Toggle playback"},
{}
}},
{"Tools", (struct key[]) {
{"<Primary>c", "Copy frame to clipboard"},
{"<Primary>p", "Print..."},
{"<Primary>s", "Save page as..."},
{"<Primary><Shift>s", "Save frame as..."},
{"<Alt>Return", "Show file information"},
{}
}},
{}
};
static struct key_section help_keys[] = {
{"Browser", "browser", help_keys_browser},
{"Viewer", "viewer", help_keys_viewer},
{}
};
static GtkWidget *
make_key(const struct key *key)
{
return gtk_widget_new(GTK_TYPE_SHORTCUTS_SHORTCUT,
"title", key->title,
"shortcut-type", GTK_SHORTCUT_ACCELERATOR,
"accelerator", key->accelerator, NULL);
}
static GtkWidget *
make_key_group(const struct key_group *group)
{
GtkWidget *widget = gtk_widget_new(
GTK_TYPE_SHORTCUTS_GROUP, "title", group->title, NULL);
for (const struct key *p = group->keys; p->title; p++)
gtk_container_add(GTK_CONTAINER(widget), make_key(p));
return widget;
}
static GtkWidget *
make_key_section(const struct key_section *section)
{
GtkWidget *widget = gtk_widget_new(GTK_TYPE_SHORTCUTS_SECTION,
"title", section->title, "section-name", section->section_name, NULL);
for (const struct key_group *p = section->groups; p->title; p++)
gtk_container_add(GTK_CONTAINER(widget), make_key_group(p));
return widget;
}
static GtkWidget *
make_key_window(void)
{
GtkWidget *window = gtk_widget_new(GTK_TYPE_SHORTCUTS_WINDOW, NULL);
for (const struct key_section *p = help_keys; p->title; p++) {
GtkWidget *section = make_key_section(p);
gtk_widget_show_all(section);
gtk_container_add(GTK_CONTAINER(window), section);
}
return window;
}
// --- About -------------------------------------------------------------------
typedef struct {
gint cx, cy;
cairo_pattern_t *v_pattern;
} AboutContext;
static void
on_about_map(GtkWidget *widget, G_GNUC_UNUSED gpointer user_data)
{
GdkFrameClock *clock = gtk_widget_get_frame_clock(widget);
(void) g_signal_connect_swapped(
clock, "update", G_CALLBACK(gtk_widget_queue_draw), widget);
gdk_frame_clock_begin_updating(clock);
}
static void
on_about_unmap(GtkWidget *widget, G_GNUC_UNUSED gpointer user_data)
{
GdkFrameClock *clock = gtk_widget_get_frame_clock(widget);
gdk_frame_clock_end_updating(clock);
}
static gboolean
on_about_motion(
G_GNUC_UNUSED GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
{
AboutContext *ctx = user_data;
ctx->cx = event->x;
ctx->cy = event->y;
return FALSE;
}
static gboolean
on_about_leave(G_GNUC_UNUSED GtkWidget *widget,
G_GNUC_UNUSED GdkEventCrossing *event, gpointer user_data)
{
AboutContext *ctx = user_data;
ctx->cx = -1;
ctx->cy = -1;
return FALSE;
}
enum { ABOUT_SIZE = 48, ABOUT_SCALE = 3, ABOUT_HEIGHT = ABOUT_SIZE * 4 / 3 };
// The mismatching resolution is incidental, and kept for interesting looks.
static cairo_pattern_t *
make_infinite_v_pattern(void)
{
cairo_surface_t *surface =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, ABOUT_SIZE, ABOUT_SIZE);
cairo_t *cr = cairo_create(surface);
cairo_move_to(cr, 2, 7);
cairo_rel_line_to(cr, 44, 0);
cairo_rel_line_to(cr, -17, 39);
cairo_rel_line_to(cr, -10, 0);
cairo_close_path(cr);
cairo_pattern_t *gradient = cairo_pattern_create_linear(0, 7, 0, 46);
cairo_pattern_add_color_stop_rgb(gradient, 1, 1, 0x66 / 255., 0);
cairo_pattern_add_color_stop_rgb(gradient, 0, 1, 0xaa / 255., 0);
cairo_set_source(cr, gradient);
cairo_pattern_destroy(gradient);
cairo_fill(cr);
cairo_destroy(cr);
cairo_pattern_t *pattern = cairo_pattern_create_for_surface(surface);
cairo_surface_destroy(surface);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_pattern_set_filter(pattern, CAIRO_FILTER_NEAREST);
cairo_matrix_t matrix = {};
cairo_matrix_init_translate(&matrix, ABOUT_SIZE / 2, 0);
cairo_pattern_set_matrix(pattern, &matrix);
return pattern;
}
static void
draw_ligature(cairo_t *cr)
{
// Transcribed fiv.svg--it would arguably make more sense to generate
// that file and these Cairo instructions from the same source.
cairo_move_to(cr, 12.5, 20.5);
cairo_rel_line_to(cr, -4, 0);
cairo_rel_line_to(cr, 0, +5);
cairo_rel_line_to(cr, +4, 0);
cairo_rel_line_to(cr, 0, +15);
cairo_rel_line_to(cr, 9, 0);
cairo_rel_line_to(cr, 0, -15);
cairo_rel_line_to(cr, +2, 0);
cairo_rel_line_to(cr, 0, -5);
cairo_rel_line_to(cr, -2, 0);
cairo_rel_line_to(cr, 0, -8);
cairo_rel_curve_to(cr, 0, -4, 5, -4, 5, 0);
cairo_rel_curve_to(cr, 0, 6, 9, 6, 9, 0);
cairo_rel_curve_to(cr, 0, -12, -23, -12, -23, 0);
cairo_close_path(cr);
cairo_move_to(cr, 26.5, 20.5);
cairo_rel_line_to(cr, 9, 0);
cairo_rel_line_to(cr, 0, 20);
cairo_rel_line_to(cr, -9, 0);
cairo_close_path(cr);
cairo_path_t *ligature = cairo_copy_path(cr);
cairo_save(cr);
cairo_clip(cr);
// Shadow approximation, given the lack of filters in Cairo.
enum { STEPS = 5 };
for (int i = 0; i <= STEPS; i++) {
cairo_save(cr);
double o = 1. / ABOUT_SCALE + 1. / ABOUT_SCALE * i;
cairo_translate(cr, o, o);
cairo_append_path(cr, ligature);
double v = 1 - (STEPS - i) * 0.075;
cairo_set_source_rgb(cr, v, v, v);
cairo_fill(cr);
cairo_restore(cr);
}
cairo_restore(cr);
cairo_append_path(cr, ligature);
cairo_path_destroy(ligature);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_set_line_width(cr, 1);
cairo_stroke(cr);
}
static gboolean
on_about_draw(GtkWidget *widget, cairo_t *cr, gpointer user_data)
{
AboutContext *ctx = user_data;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
GtkStyleContext *style = gtk_widget_get_style_context(widget);
gtk_render_background(style, cr, 0, 0, allocation.width, allocation.height);
// The transformation matrix turns out/is applied wrongly on Quartz.
gboolean broken_backend = cairo_surface_get_type(cairo_get_target(cr)) ==
CAIRO_SURFACE_TYPE_QUARTZ;
if (broken_backend)
cairo_push_group(cr);
cairo_translate(cr, (allocation.width - ABOUT_SIZE * ABOUT_SCALE) / 2,
ABOUT_SIZE * ABOUT_SCALE / 4);
cairo_scale(cr, ABOUT_SCALE, ABOUT_SCALE);
cairo_save(cr);
cairo_translate(cr, ABOUT_SIZE / 2, ABOUT_SIZE / 2);
if (ctx->cx >= 0 && ctx->cy >= 0) {
gint dx = ctx->cx - allocation.width / 2;
gint dy = ctx->cy - ABOUT_SIZE * ABOUT_SCALE * 3 / 4;
cairo_rotate(cr, atan2(dy, dx) - M_PI_2);
}
GdkFrameClock *clock = gtk_widget_get_frame_clock(widget);
gint64 t = gdk_frame_clock_get_frame_time(clock);
cairo_translate(cr, 0, (gint64) (t / 4e4) % ABOUT_SIZE);
cairo_set_source(cr, ctx->v_pattern);
cairo_paint(cr);
cairo_translate(cr, ABOUT_SIZE / 2, 14 /* Through trial and error. */);
cairo_scale(cr, 1, -1);
cairo_set_source(cr, ctx->v_pattern);
cairo_paint(cr);
cairo_restore(cr);
draw_ligature(cr);
if (broken_backend) {
cairo_pop_group_to_source(cr);
cairo_paint(cr);
}
return TRUE;
}
static void
show_about_dialog(GtkWidget *parent)
{
GtkWidget *dialog = gtk_widget_new(GTK_TYPE_DIALOG, "use-header-bar", TRUE,
"title", "About", "transient-for", parent, "destroy-with-parent", TRUE,
NULL);
GtkWidget *area = gtk_drawing_area_new();
gtk_style_context_add_class(gtk_widget_get_style_context(area), "view");
gtk_widget_set_size_request(
area, ABOUT_SIZE * ABOUT_SCALE * 2, ABOUT_HEIGHT * ABOUT_SCALE);
AboutContext ctx = {
.cx = -1, .cy = -1, .v_pattern = make_infinite_v_pattern()};
gtk_widget_add_events(
area, GDK_POINTER_MOTION_MASK | GDK_LEAVE_NOTIFY_MASK);
g_signal_connect(
area, "motion-notify-event", G_CALLBACK(on_about_motion), &ctx);
g_signal_connect(
area, "leave-notify-event", G_CALLBACK(on_about_leave), &ctx);
g_signal_connect(area, "draw", G_CALLBACK(on_about_draw), &ctx);
g_signal_connect(area, "map", G_CALLBACK(on_about_map), &ctx);
g_signal_connect(area, "unmap", G_CALLBACK(on_about_unmap), &ctx);
// The rest is approximately copying GTK+'s own gtkaboutdialog.ui.
GtkWidget *name = gtk_label_new(NULL);
gtk_label_set_selectable(GTK_LABEL(name), TRUE);
gtk_label_set_markup(
GTK_LABEL(name), "<b>" PROJECT_NAME "</b> " PROJECT_VERSION);
GtkWidget *website = gtk_label_new(NULL);
gtk_label_set_selectable(GTK_LABEL(website), TRUE);
const char *url = "https://git.janouch.name/p/" PROJECT_NAME;
gchar *link = g_strdup_printf("<a href='%s'>%s</a>", url, url);
gtk_label_set_markup(GTK_LABEL(website), link);
g_free(link);
GtkWidget *sw = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(
GTK_SCROLLED_WINDOW(sw), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(sw), GTK_SHADOW_IN);
GtkWidget *viewer = gtk_text_view_new();
gtk_text_view_set_editable(GTK_TEXT_VIEW(viewer), FALSE);
gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(viewer), FALSE);
gtk_text_view_set_left_margin(GTK_TEXT_VIEW(viewer), 8);
gtk_text_view_set_right_margin(GTK_TEXT_VIEW(viewer), 8);
gtk_container_add(GTK_CONTAINER(sw), viewer);
GBytes *license =
g_resources_lookup_data("/LICENSE", G_RESOURCE_LOOKUP_FLAGS_NONE, NULL);
g_return_if_fail(license != NULL);
gchar *escaped = g_markup_escape_text(g_bytes_get_data(license, NULL), -1);
g_bytes_unref(license);
GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(viewer));
gchar *formatted = g_strdup_printf("<small>%s</small>", escaped);
g_free(escaped);
GtkTextIter iter = {};
gtk_text_buffer_get_start_iter(buffer, &iter);
gtk_text_buffer_insert_markup(buffer, &iter, formatted, -1);
g_free(formatted);
enum { SUBBOX_MARGIN = 12 /* GNOME HIG 1.0 */ };
GtkWidget *subbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 12);
gtk_widget_set_margin_start(subbox, SUBBOX_MARGIN);
gtk_widget_set_margin_end(subbox, SUBBOX_MARGIN);
gtk_box_pack_start(GTK_BOX(subbox), name, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(subbox), website, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(subbox), sw, TRUE, TRUE, 0);
GtkWidget *box = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
gtk_box_pack_start(GTK_BOX(box), area, FALSE, FALSE, 0);
gtk_box_pack_end(GTK_BOX(box), subbox, TRUE, TRUE, SUBBOX_MARGIN);
gtk_window_set_default_size(GTK_WINDOW(dialog), -1, 480);
gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL,
&(GdkGeometry) {.max_width = -1, .max_height = G_MAXSHORT},
GDK_HINT_MAX_SIZE);
gtk_widget_grab_focus(viewer);
gtk_widget_show_all(dialog);
gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_destroy(dialog);
cairo_pattern_destroy(ctx.v_pattern);
}
// --- Main --------------------------------------------------------------------
// TODO(p): See if it's possible to give separators room to shrink
// by some minor amount of pixels, margin-wise.
#define B make_toolbar_button
#define T make_toolbar_toggle
#define TOOLBAR(XX) \
XX(BROWSE, B("view-grid-symbolic", "Browse")) \
XX(FILE_PREVIOUS, B("go-previous-symbolic", "Previous file")) \
XX(FILE_NEXT, B("go-next-symbolic", "Next file")) \
XX(S1, gtk_separator_new(GTK_ORIENTATION_HORIZONTAL)) \
XX(PAGE_FIRST, B("go-top-symbolic", "First page")) \
XX(PAGE_PREVIOUS, B("go-up-symbolic", "Previous page")) \
XX(PAGE_NEXT, B("go-down-symbolic", "Next page")) \
XX(PAGE_LAST, B("go-bottom-symbolic", "Last page")) \
XX(S2, gtk_separator_new(GTK_ORIENTATION_HORIZONTAL)) \
XX(SKIP_BACK, B("media-skip-backward-symbolic", "Rewind playback")) \
XX(SEEK_BACK, B("media-seek-backward-symbolic", "Previous frame")) \
XX(PLAY_PAUSE, B("media-playback-start-symbolic", "Pause")) \
XX(SEEK_FORWARD, B("media-seek-forward-symbolic", "Next frame")) \
XX(S3, gtk_separator_new(GTK_ORIENTATION_HORIZONTAL)) \
XX(FIXATE, T("pin2-symbolic", "Keep zoom and position")) \
XX(MINUS, B("zoom-out-symbolic", "Zoom out")) \
XX(SCALE, gtk_label_new("")) \
XX(PLUS, B("zoom-in-symbolic", "Zoom in")) \
XX(ONE, B("zoom-original-symbolic", "Original size")) \
XX(FIT, T("zoom-fit-best-symbolic", "Scale to fit")) \
XX(S4, gtk_separator_new(GTK_ORIENTATION_HORIZONTAL)) \
/* Or perhaps "blur-symbolic", also in the extended set. */ \
XX(COLOR, T("preferences-color-symbolic", "Color management")) \
XX(SMOOTH, T("blend-tool-symbolic", "Smooth scaling")) \
XX(CHECKERBOARD, T("checkerboard-symbolic", "Highlight transparency")) \
XX(ENHANCE, T("heal-symbolic", "Enhance low-quality JPEG")) \
XX(S5, gtk_separator_new(GTK_ORIENTATION_HORIZONTAL)) \
XX(SAVE, B("document-save-as-symbolic", "Save as...")) \
XX(PRINT, B("document-print-symbolic", "Print...")) \
XX(INFO, B("info-symbolic", "Information")) \
XX(S6, gtk_separator_new(GTK_ORIENTATION_HORIZONTAL)) \
XX(LEFT, B("object-rotate-left-symbolic", "Rotate left")) \
XX(MIRROR, B("object-flip-horizontal-symbolic", "Mirror")) \
XX(RIGHT, B("object-rotate-right-symbolic", "Rotate right")) \
XX(S7, gtk_separator_new(GTK_ORIENTATION_HORIZONTAL)) \
/* We are YouTube. */ \
XX(FULLSCREEN, B("view-fullscreen-symbolic", "Fullscreen"))
enum {
#define XX(id, constructor) TOOLBAR_ ## id,
TOOLBAR(XX)
#undef XX
TOOLBAR_COUNT
};
struct {
FivIoModel *model; ///< "directory" contents
gchar *directory; ///< URI of the currently browsed directory
GList *directory_back; ///< History paths as URIs going backwards
GList *directory_forward; ///< History paths as URIs going forwards
GPtrArray *files; ///< "directory" contents as URIs
gchar *uri; ///< Current image URI, if any
gint files_index; ///< Where "uri" is within "files"
GtkWidget *window;
GtkWidget *menu;
GtkWidget *stack;
GtkWidget *browser_paned;
GtkWidget *browser_sidebar;
GtkWidget *plus;
GtkWidget *minus;
GtkWidget *funnel;
GtkWidget *sort_field[FIV_IO_MODEL_SORT_COUNT];
GtkWidget *sort_direction[2];
GtkWidget *browser_scroller;
GtkWidget *browser;
GtkWidget *view_box;
GtkWidget *view_toolbar;
GtkWidget *view_info;
GtkWidget *view_info_label;
GtkWidget *toolbar[TOOLBAR_COUNT];
GtkWidget *view;
} g;
static void
show_error_dialog(GError *error)
{
GtkWidget *dialog =
gtk_message_dialog_new(GTK_WINDOW(g.window), GTK_DIALOG_MODAL,
GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", error->message);
gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_destroy(dialog);
g_error_free(error);
}
static void
set_window_title(const char *uri)
{
GFile *file = g_file_new_for_uri(uri);
gchar *name = g_file_get_parse_name(file);
gtk_window_set_title(GTK_WINDOW(g.window), name);
g_free(name);
g_object_unref(file);
}
static void
switch_to_browser_noselect(void)
{
set_window_title(g.directory);
gtk_stack_set_visible_child(GTK_STACK(g.stack), g.browser_paned);
gtk_widget_grab_focus(g.browser);
}
static void
switch_to_browser(void)
{
// XXX: This distinction is weird, it might make sense to make
// an end-user option for the behaviour.
switch_to_browser_noselect();
fiv_browser_select(FIV_BROWSER(g.browser), g.uri);
}
static void
switch_to_view(void)
{
g_return_if_fail(g.uri != NULL);
set_window_title(g.uri);
gtk_stack_set_visible_child(GTK_STACK(g.stack), g.view_box);
gtk_widget_grab_focus(g.view);
}
static gchar *
parent_uri(GFile *child_file)
{
// The empty URI results in a convenient dummy GFile implementation.
GFile *parent = g_file_get_parent(child_file);
if (!parent)
return g_strdup("");
gchar *parent_uri = g_file_get_uri(parent);
g_object_unref(parent);
return parent_uri;
}
static void
update_files_index(void)
{
g.files_index = -1;
for (guint i = 0; i < g.files->len; i++)
if (!g_strcmp0(g.uri, g_ptr_array_index(g.files, i)))
g.files_index = i;
}
static void
load_directory_without_reload(const char *uri)
{
gchar *uri_duplicated = g_strdup(uri);
if (g.directory_back && !strcmp(uri, g.directory_back->data)) {
// We're going back in history.
if (g.directory) {
g.directory_forward =
g_list_prepend(g.directory_forward, g.directory);
g.directory = NULL;
}
GList *link = g.directory_back;
g.directory_back = g_list_remove_link(g.directory_back, link);
g_list_free_full(link, g_free);
} else if (g.directory_forward && !strcmp(uri, g.directory_forward->data)) {
// We're going forward in history.
if (g.directory) {
g.directory_back =
g_list_prepend(g.directory_back, g.directory);
g.directory = NULL;
}
GList *link = g.directory_forward;
g.directory_forward = g_list_remove_link(g.directory_forward, link);
g_list_free_full(link, g_free);
} else if (g.directory && strcmp(uri, g.directory)) {
// We're on a new subpath.
g_list_free_full(g.directory_forward, g_free);
g.directory_forward = NULL;
g.directory_back = g_list_prepend(g.directory_back, g.directory);
g.directory = NULL;
}
g_free(g.directory);
g.directory = uri_duplicated;
}
static void
load_directory_without_switching(const char *uri)
{
if (uri) {
load_directory_without_reload(uri);
GtkAdjustment *vadjustment = gtk_scrolled_window_get_vadjustment(
GTK_SCROLLED_WINDOW(g.browser_scroller));
gtk_adjustment_set_value(
vadjustment, gtk_adjustment_get_lower(vadjustment));
}
GError *error = NULL;
GFile *file = g_file_new_for_uri(g.directory);
if (fiv_io_model_open(g.model, file, &error)) {
// This is handled by our ::files-changed callback.
} else if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED)) {
g_error_free(error);
} else {
show_error_dialog(error);
}
g_object_unref(file);
}
static void
load_directory(const char *uri)
{
load_directory_without_switching(uri);
// XXX: When something outside the filtered entries is open, the index is
// kept at -1, and browsing doesn't work. How to behave here?
// Should we add it to the pointer array as an exception?
if (uri) {
switch_to_browser_noselect();
// TODO(p): Rather place it in history.
g_clear_pointer(&g.uri, g_free);
}
}
static void
on_model_files_changed(FivIoModel *model, G_GNUC_UNUSED gpointer user_data)
{
g_return_if_fail(model == g.model);
gsize len = 0;
const FivIoModelEntry *files = fiv_io_model_get_files(g.model, &len);
g_ptr_array_free(g.files, TRUE);
g.files = g_ptr_array_new_full(len, g_free);
for (gsize i = 0; i < len; i++)
g_ptr_array_add(g.files, g_strdup(files[i].uri));
update_files_index();
gtk_widget_set_sensitive(
g.toolbar[TOOLBAR_FILE_PREVIOUS], g.files->len > 1);
gtk_widget_set_sensitive(
g.toolbar[TOOLBAR_FILE_NEXT], g.files->len > 1);
}
static void
on_filtering_toggled(GtkToggleButton *button, G_GNUC_UNUSED gpointer user_data)
{
gboolean active = gtk_toggle_button_get_active(button);
g_object_set(g.model, "filtering", active, NULL);
}
static void
on_sort_field(G_GNUC_UNUSED GtkMenuItem *item, gpointer data)
{
int old = -1, new = (int) (intptr_t) data;
g_object_get(g.model, "sort-field", &old, NULL);
if (old != new)
g_object_set(g.model, "sort-field", new, NULL);
}
static void
on_sort_direction(G_GNUC_UNUSED GtkMenuItem *item, gpointer data)
{
gboolean old = FALSE, new = (gboolean) (intptr_t) data;
g_object_get(g.model, "sort-descending", &old, NULL);
if (old != new)
g_object_set(g.model, "sort-descending", new, NULL);
}
static void
on_notify_view_messages(FivView *view, G_GNUC_UNUSED gpointer user_data)
{
gchar *messages = NULL;
g_object_get(view, "messages", &messages, NULL);
if (messages) {
gchar *escaped = g_markup_escape_text(messages, -1);
g_free(messages);
gchar *message = g_strdup_printf("<b>Error:</b> %s", escaped);
g_free(escaped);
gtk_label_set_markup(GTK_LABEL(g.view_info_label), message);
g_free(message);
gtk_widget_show(g.view_info);
} else {
gtk_widget_hide(g.view_info);
}
}
static void
open_image(const char *uri)
{
GFile *file = g_file_new_for_uri(uri);
if (fiv_view_set_uri(FIV_VIEW(g.view), uri))
gtk_recent_manager_add_item(gtk_recent_manager_get_default(), uri);
g_list_free_full(g.directory_forward, g_free);
g.directory_forward = NULL;
g_free(g.uri);
g.uri = g_strdup(uri);
// So that load_directory() itself can be used for reloading.
gchar *parent = parent_uri(file);
g_object_unref(file);
if (!g.files->len /* hack to always load the directory after launch */ ||
!g.directory || strcmp(parent, g.directory))
load_directory_without_switching(parent);
else
update_files_index();
g_free(parent);
switch_to_view();
}
static GtkWidget *
create_open_dialog(void)
{
GtkWidget *dialog = gtk_file_chooser_dialog_new("Open file",
GTK_WINDOW(g.window), GTK_FILE_CHOOSER_ACTION_OPEN,
"_Cancel", GTK_RESPONSE_CANCEL,
"_Open", GTK_RESPONSE_ACCEPT, NULL);
gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(dialog), FALSE);
gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dialog), TRUE);
GtkFileFilter *filter = gtk_file_filter_new();
for (const char **p = fiv_io_supported_media_types; *p; p++)
gtk_file_filter_add_mime_type(filter, *p);
#ifdef HAVE_GDKPIXBUF
gtk_file_filter_add_pixbuf_formats(filter);
#endif // HAVE_GDKPIXBUF
gtk_file_filter_set_name(filter, "Supported images");
gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter);
GtkFileFilter *all_files = gtk_file_filter_new();
gtk_file_filter_set_name(all_files, "All files");
gtk_file_filter_add_pattern(all_files, "*");
gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), all_files);
return dialog;
}
static void
on_open(void)
{
static GtkWidget *dialog;
if (!dialog)
dialog = create_open_dialog();
// Apparently, just keeping the dialog around doesn't mean
// that it will remember its last location.
(void) gtk_file_chooser_set_current_folder_uri(
GTK_FILE_CHOOSER(dialog), g.directory);
switch (gtk_dialog_run(GTK_DIALOG(dialog))) {
GSList *uri_list;
case GTK_RESPONSE_ACCEPT:
if (!(uri_list = gtk_file_chooser_get_uris(GTK_FILE_CHOOSER(dialog))))
break;
gchar **uris = slist_to_strv(uri_list);
if (g_strv_length(uris) == 1) {
open_image(uris[0]);
} else {
fiv_collection_reload(uris);
load_directory(FIV_COLLECTION_SCHEME ":/");
}
g_strfreev(uris);
break;
case GTK_RESPONSE_NONE:
dialog = NULL;
return;
}
gtk_widget_hide(dialog);
}
static void
on_previous(void)
{
if (g.files_index >= 0) {
int previous = (g.files->len + g.files_index - 1) % g.files->len;
open_image(g_ptr_array_index(g.files, previous));
}
}
static void
on_next(void)
{
if (g.files_index >= 0) {
int next = (g.files_index + 1) % g.files->len;
open_image(g_ptr_array_index(g.files, next));
}
}
static gchar **
build_spawn_argv(const char *uri)
{
// Because we only pass URIs, there is no need to prepend "--" here.
GPtrArray *a = g_ptr_array_new();
g_ptr_array_add(a, g_strdup(PROJECT_NAME));
// Process-local VFS URIs need to be resolved to globally accessible URIs.
// It doesn't seem possible to reliably tell if a GFile is process-local,
// but our collection VFS is the only one to realistically cause problems.
if (!fiv_collection_uri_matches(uri)) {
g_ptr_array_add(a, g_strdup(uri));
goto out;
}
GFile *file = g_file_new_for_uri(uri);
GError *error = NULL;
GFileInfo *info =
g_file_query_info(file, G_FILE_ATTRIBUTE_STANDARD_TARGET_URI,
G_FILE_QUERY_INFO_NONE, NULL, &error);
g_object_unref(file);
if (!info) {
g_warning("%s", error->message);
g_error_free(error);
goto out;
}
const char *target_uri = g_file_info_get_attribute_string(
info, G_FILE_ATTRIBUTE_STANDARD_TARGET_URI);
if (target_uri) {
g_ptr_array_add(a, g_strdup(target_uri));
} else {
gsize len = 0;
GFile **files = fiv_collection_get_contents(&len);
for (gsize i = 0; i < len; i++)
g_ptr_array_add(a, g_file_get_uri(files[i]));
}
g_object_unref(info);
out:
g_ptr_array_add(a, NULL);
return (gchar **) g_ptr_array_free(a, FALSE);
}
static void
spawn_uri(const char *uri)
{
gchar **argv = build_spawn_argv(uri);
GError *error = NULL;
if (!g_spawn_async(
NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &error)) {
g_warning("%s", error->message);
g_error_free(error);
}
g_strfreev(argv);
}
static void
on_item_activated(G_GNUC_UNUSED FivBrowser *browser, GFile *location,
GtkPlacesOpenFlags flags, G_GNUC_UNUSED gpointer data)
{
gchar *uri = g_file_get_uri(location);
if (flags == GTK_PLACES_OPEN_NEW_WINDOW)
spawn_uri(uri);
else
open_image(uri);
g_free(uri);
}
static void open_any_file(GFile *file, gboolean force_browser);
static void
on_mounted_enclosing(
GObject *source_object, GAsyncResult *res, gpointer user_data)
{
GFile *file = G_FILE(source_object);
GError *error = NULL;
if (g_file_mount_enclosing_volume_finish(file, res, &error))
goto retry;
if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_ALREADY_MOUNTED)) {
show_error_dialog(error);
return;
}
// The "http" scheme doesn't behave nicely, make a leap of faith.
g_error_free(error);
if (g_file_query_file_type(file, G_FILE_QUERY_INFO_NONE, NULL) ==
G_FILE_TYPE_UNKNOWN) {
gchar *uri = g_file_get_uri(file);
open_image(uri);
g_free(uri);
return;
}
retry:
open_any_file(file, (gboolean) (gintptr) user_data);
}
static void
open_any_file(GFile *file, gboolean force_browser)
{
// Various GVfs schemes may need mounting.
GFileType type = g_file_query_file_type(file, G_FILE_QUERY_INFO_NONE, NULL);
if (type == G_FILE_TYPE_UNKNOWN &&
G_FILE_GET_IFACE(file)->mount_enclosing_volume) {
// TODO(p): At least provide some kind of indication.
GMountOperation *op = gtk_mount_operation_new(GTK_WINDOW(g.window));
g_file_mount_enclosing_volume(file, G_MOUNT_MOUNT_NONE, op, NULL,
on_mounted_enclosing, (gpointer) (gintptr) force_browser);
g_object_unref(op);
return;
}
gchar *uri = g_file_get_uri(file);
if (type == G_FILE_TYPE_UNKNOWN) {
errno = ENOENT;
show_error_dialog(g_error_new(G_FILE_ERROR,
g_file_error_from_errno(errno), "%s: %s", uri, g_strerror(errno)));
} else if (type == G_FILE_TYPE_DIRECTORY) {
load_directory(uri);
} else if (force_browser) {
// GNOME, e.g., invokes this as a hint to focus the particular file.
gchar *parent = parent_uri(file);
load_directory(parent);
g_free(parent);
fiv_browser_select(FIV_BROWSER(g.browser), uri);
} else {
open_image(uri);
}
g_free(uri);
}
static void
on_open_location(G_GNUC_UNUSED GtkPlacesSidebar *sidebar, GFile *location,
GtkPlacesOpenFlags flags, G_GNUC_UNUSED gpointer user_data)
{
gchar *uri = g_file_get_uri(location);
if (flags & GTK_PLACES_OPEN_NEW_WINDOW)
spawn_uri(uri);
else
open_any_file(location, FALSE);
g_free(uri);
}
static void
on_view_drag_data_received(G_GNUC_UNUSED GtkWidget *widget,
GdkDragContext *context, G_GNUC_UNUSED gint x, G_GNUC_UNUSED gint y,
GtkSelectionData *data, G_GNUC_UNUSED guint info, guint time,
G_GNUC_UNUSED gpointer user_data)
{
gchar **uris = gtk_selection_data_get_uris(data);
if (!uris) {
gtk_drag_finish(context, FALSE, FALSE, time);
return;
}
GFile *file = NULL;
if (g_strv_length(uris) == 1) {
file = g_file_new_for_uri(uris[0]);
} else {
fiv_collection_reload(uris);
file = g_file_new_for_uri(FIV_COLLECTION_SCHEME ":/");
}
open_any_file(file, FALSE);
g_object_unref(file);
gtk_drag_finish(context, TRUE, FALSE, time);
g_strfreev(uris);
}
static void
on_toolbar_zoom(G_GNUC_UNUSED GtkButton *button, gpointer user_data)
{
FivThumbnailSize size = FIV_THUMBNAIL_SIZE_COUNT;
g_object_get(g.browser, "thumbnail-size", &size, NULL);
size += (gintptr) user_data;
g_return_if_fail(size >= FIV_THUMBNAIL_SIZE_MIN &&
size <= FIV_THUMBNAIL_SIZE_MAX);
g_object_set(g.browser, "thumbnail-size", size, NULL);
}
static void
on_notify_thumbnail_size(
GObject *object, GParamSpec *param_spec, G_GNUC_UNUSED gpointer user_data)
{
FivThumbnailSize size = 0;
g_object_get(object, g_param_spec_get_name(param_spec), &size, NULL);
gtk_widget_set_sensitive(g.plus, size < FIV_THUMBNAIL_SIZE_MAX);
gtk_widget_set_sensitive(g.minus, size > FIV_THUMBNAIL_SIZE_MIN);
}
static void
on_notify_filtering(
GObject *object, GParamSpec *param_spec, G_GNUC_UNUSED gpointer user_data)
{
gboolean b = FALSE;
g_object_get(object, g_param_spec_get_name(param_spec), &b, NULL);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(g.funnel), b);
}
static void
on_notify_sort_field(
GObject *object, GParamSpec *param_spec, G_GNUC_UNUSED gpointer user_data)
{
gint field = -1;
g_object_get(object, g_param_spec_get_name(param_spec), &field, NULL);
gtk_check_menu_item_set_active(
GTK_CHECK_MENU_ITEM(g.sort_field[field]), TRUE);
}
static void
on_notify_sort_descending(
GObject *object, GParamSpec *param_spec, G_GNUC_UNUSED gpointer user_data)
{
gboolean b = FALSE;
g_object_get(object, g_param_spec_get_name(param_spec), &b, NULL);
gtk_check_menu_item_set_active(
GTK_CHECK_MENU_ITEM(g.sort_direction[b]), TRUE);
}
static void
toggle_fullscreen(void)
{
if (gdk_window_get_state(gtk_widget_get_window(g.window)) &
GDK_WINDOW_STATE_FULLSCREEN)
gtk_window_unfullscreen(GTK_WINDOW(g.window));
else
gtk_window_fullscreen(GTK_WINDOW(g.window));
}
static void
on_window_state_event(G_GNUC_UNUSED GtkWidget *widget,
GdkEventWindowState *event, G_GNUC_UNUSED gpointer user_data)
{
if (!(event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN))
return;
const char *name = (event->new_window_state & GDK_WINDOW_STATE_FULLSCREEN)
? "view-restore-symbolic"
: "view-fullscreen-symbolic";
GtkButton *button = GTK_BUTTON(g.toolbar[TOOLBAR_FULLSCREEN]);
GtkImage *image = GTK_IMAGE(gtk_button_get_image(button));
gtk_image_set_from_icon_name(image, name, GTK_ICON_SIZE_BUTTON);
}
static void
show_help_contents(void)
{
gchar *filename = g_strdup_printf("%s.html", PROJECT_NAME);
gchar *path = g_build_filename(PROJECT_DOCDIR, filename, NULL);
g_free(filename);
GError *error = NULL;
gchar *uri = g_filename_to_uri(path, NULL, &error);
g_free(path);
// For some reason, it doesn't work with a parent window.
if (!uri || !gtk_show_uri_on_window(NULL, uri, GDK_CURRENT_TIME, &error))
show_error_dialog(error);
g_free(uri);
}
static void
on_help_destroyed(GtkWidget *window, GtkWidget **storage)
{
g_return_if_fail(*storage == window);
*storage = NULL;
}
static void
show_help_shortcuts(void)
{
static GtkWidget *window;
if (!window) {
window = make_key_window();
g_signal_connect(
window, "destroy", G_CALLBACK(on_help_destroyed), &window);
}
g_object_set(window, "section-name",
gtk_stack_get_visible_child(GTK_STACK(g.stack)) == g.view_box
? "viewer"
: "browser",
NULL);
gtk_widget_show(window);
}
static void
show_preferences(void)
{
char *argv[] = {"dconf-editor", PROJECT_NS PROJECT_NAME, NULL};
GError *error = NULL;
if (!g_spawn_async(
NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &error)) {
if (g_error_matches(error, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT))
g_prefix_error_literal(&error,
"Please install dconf-editor, or use the gsettings utility.\n");
show_error_dialog(error);
}
}
static void
toggle_sunlight(void)
{
GtkSettings *settings = gtk_settings_get_default();
const char *property = "gtk-application-prefer-dark-theme";
gboolean set = FALSE;
g_object_get(settings, property, &set, NULL);
g_object_set(settings, property, !set, NULL);
}
// Cursor keys, e.g., simply cannot be bound through accelerators
// (and GtkWidget::keynav-failed would arguably be an awful solution).
//
// GtkBindingSets can be added directly through GtkStyleContext,
// but that would still require setting up action signals on the widget class,
// which is extremely cumbersome. GtkWidget::move-focus has no return value,
// so we can't override that and abort further handling.
//
// Therefore, bind directly to keypresses. Order can be fine-tuned with
// g_signal_connect{,after}(), or overriding the handler and either tactically
// chaining up or using gtk_window_propagate_key_event().
static gboolean
on_key_press(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
G_GNUC_UNUSED gpointer data)
{
switch (event->state & gtk_accelerator_get_default_mod_mask()) {
case GDK_MOD1_MASK | GDK_SHIFT_MASK:
if (event->keyval == GDK_KEY_D)
toggle_sunlight();
break;
case GDK_CONTROL_MASK:
case GDK_CONTROL_MASK | GDK_SHIFT_MASK:
switch (event->keyval) {
case GDK_KEY_h:
gtk_button_clicked(GTK_BUTTON(g.funnel));
return TRUE;
case GDK_KEY_l:
fiv_sidebar_show_enter_location(FIV_SIDEBAR(g.browser_sidebar));
return TRUE;
case GDK_KEY_n:
if (gtk_stack_get_visible_child(GTK_STACK(g.stack)) == g.view_box)
spawn_uri(g.uri);
else
spawn_uri(g.directory);
return TRUE;
case GDK_KEY_o:
on_open();
return TRUE;
case GDK_KEY_q:
case GDK_KEY_w:
gtk_widget_destroy(g.window);
return TRUE;
case GDK_KEY_question:
show_help_shortcuts();
return TRUE;
case GDK_KEY_comma:
show_preferences();
return TRUE;
}
break;
case GDK_MOD1_MASK:
switch (event->keyval) {
case GDK_KEY_Left:
if (gtk_stack_get_visible_child(GTK_STACK(g.stack)) == g.view_box)
switch_to_browser_noselect();
else if (g.directory_back)
load_directory(g.directory_back->data);
return TRUE;
case GDK_KEY_Right:
if (g.directory_forward)
load_directory(g.directory_forward->data);
else if (g.uri)
switch_to_view();
return TRUE;
}
break;
case GDK_SHIFT_MASK:
switch (event->keyval) {
case GDK_KEY_F1:
show_about_dialog(g.window);
return TRUE;
}
break;
case 0:
switch (event->keyval) {
case GDK_KEY_q:
gtk_widget_destroy(g.window);
return TRUE;
case GDK_KEY_o:
on_open();
return TRUE;
case GDK_KEY_F1:
show_help_contents();
return TRUE;
case GDK_KEY_F9:
gtk_widget_set_visible(g.browser_sidebar,
!gtk_widget_is_visible(g.browser_sidebar));
return TRUE;
case GDK_KEY_F11:
case GDK_KEY_f:
toggle_fullscreen();
return TRUE;
}
}
gchar *accelerator = NULL;
g_object_get(gtk_widget_get_settings(g.window), "gtk-menu-bar-accel",
&accelerator, NULL);
if (!accelerator)
return FALSE;
guint key = 0;
GdkModifierType mods = 0;
gtk_accelerator_parse(accelerator, &key, &mods);
g_free(accelerator);
guint mask = gtk_accelerator_get_default_mod_mask();
if (key && event->keyval == key && (event->state & mask) == mods) {
gtk_widget_show(g.menu);
// _gtk_menu_shell_set_keyboard_mode() is private.
// We've added a viewable menu bar, so calling this again will work.
return gtk_window_activate_key(GTK_WINDOW(g.window), event);
}
return FALSE;
}
static gboolean
on_key_press_view(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
G_GNUC_UNUSED gpointer data)
{
switch (event->state & gtk_accelerator_get_default_mod_mask()) {
case 0:
switch (event->keyval) {
// XXX: The same shortcut focuses GtkPaned's handle.
case GDK_KEY_F8:
gtk_widget_set_visible(g.view_toolbar,
!gtk_widget_is_visible(g.view_toolbar));
return TRUE;
case GDK_KEY_Left:
case GDK_KEY_Up:
case GDK_KEY_Page_Up:
on_previous();
return TRUE;
case GDK_KEY_Right:
case GDK_KEY_Down:
case GDK_KEY_Page_Down:
on_next();
return TRUE;
case GDK_KEY_Escape:
case GDK_KEY_Return:
switch_to_browser();
return TRUE;
}
}
return FALSE;
}
static gboolean
on_key_press_browser_paned(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
G_GNUC_UNUSED gpointer data)
{
// TODO(p): Consider replicating more GtkFileChooserWidget bindings.
switch (event->state & gtk_accelerator_get_default_mod_mask()) {
case GDK_CONTROL_MASK:
switch (event->keyval) {
case GDK_KEY_r:
load_directory(NULL);
return TRUE;
}
break;
case GDK_MOD1_MASK:
switch (event->keyval) {
case GDK_KEY_Up: {
GFile *directory = g_file_new_for_uri(g.directory);
gchar *parent = parent_uri(directory);
g_object_unref(directory);
load_directory(parent);
g_free(parent);
return TRUE;
}
case GDK_KEY_Home: {
gchar *uri = g_filename_to_uri(g_get_home_dir(), NULL, NULL);
load_directory(uri);
g_free(uri);
return TRUE;
}
}
break;
case 0:
switch (event->keyval) {
case GDK_KEY_Escape:
fiv_browser_select(FIV_BROWSER(g.browser), NULL);
return TRUE;
case GDK_KEY_h:
gtk_button_clicked(GTK_BUTTON(g.funnel));
return TRUE;
case GDK_KEY_F5:
case GDK_KEY_r:
load_directory(NULL);
return TRUE;
}
}
return FALSE;
}
static gboolean
on_button_press_view(G_GNUC_UNUSED GtkWidget *widget, GdkEventButton *event)
{
if ((event->state & gtk_accelerator_get_default_mod_mask()))
return FALSE;
switch (event->button) {
case 4: // back (GdkWin32, GdkQuartz)
case 8: // back
switch_to_browser_noselect();
return TRUE;
case GDK_BUTTON_PRIMARY:
if (event->type == GDK_2BUTTON_PRESS) {
toggle_fullscreen();
return TRUE;
}
return FALSE;
default:
return FALSE;
}
}
static gboolean
on_button_press_browser_paned(
G_GNUC_UNUSED GtkWidget *widget, GdkEventButton *event)
{
if ((event->state & gtk_accelerator_get_default_mod_mask()))
return FALSE;
switch (event->button) {
case 4: // back (GdkWin32, GdkQuartz)
case 8: // back
if (g.directory_back)
load_directory(g.directory_back->data);
return TRUE;
case 5: // forward (GdkWin32, GdkQuartz)
case 9: // forward
if (g.directory_forward)
load_directory(g.directory_forward->data);
else if (g.uri)
switch_to_view();
return TRUE;
default:
return FALSE;
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static GtkWidget *
make_toolbar_button(const char *symbolic, const char *tooltip)
{
GtkWidget *button = gtk_button_new();
gtk_button_set_image(GTK_BUTTON(button),
gtk_image_new_from_icon_name(symbolic, GTK_ICON_SIZE_BUTTON));
gtk_widget_set_tooltip_text(button, tooltip);
gtk_widget_set_focus_on_click(button, FALSE);
gtk_style_context_add_class(
gtk_widget_get_style_context(button), GTK_STYLE_CLASS_FLAT);
return button;
}
static GtkWidget *
make_toolbar_toggle(const char *symbolic, const char *tooltip)
{
GtkWidget *button = gtk_toggle_button_new();
gtk_button_set_image(GTK_BUTTON(button),
gtk_image_new_from_icon_name(symbolic, GTK_ICON_SIZE_BUTTON));
gtk_widget_set_tooltip_text(button, tooltip);
gtk_widget_set_focus_on_click(button, FALSE);
gtk_style_context_add_class(
gtk_widget_get_style_context(button), GTK_STYLE_CLASS_FLAT);
return button;
}
static void
on_view_actions_changed(void)
{
gboolean has_image = FALSE, can_animate = FALSE;
gboolean has_previous = FALSE, has_next = FALSE;
g_object_get(g.view, "has-image", &has_image, "can-animate", &can_animate,
"has-previous-page", &has_previous, "has-next-page", &has_next, NULL);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_PAGE_FIRST], has_previous);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_PAGE_PREVIOUS], has_previous);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_PAGE_NEXT], has_next);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_PAGE_LAST], has_next);
// We don't want these to flash during playback.
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_SKIP_BACK], can_animate);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_SEEK_BACK], can_animate);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_PLAY_PAUSE], can_animate);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_SEEK_FORWARD], can_animate);
// Note that none of the following should be visible with no image.
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_MINUS], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_SCALE], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_PLUS], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_ONE], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_FIT], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_COLOR], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_SMOOTH], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_CHECKERBOARD], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_ENHANCE], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_SAVE], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_PRINT], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_INFO], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_LEFT], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_MIRROR], has_image);
gtk_widget_set_sensitive(g.toolbar[TOOLBAR_RIGHT], has_image);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
on_notify_view_scale(
GObject *object, GParamSpec *param_spec, G_GNUC_UNUSED gpointer user_data)
{
double scale = 0;
g_object_get(object, g_param_spec_get_name(param_spec), &scale, NULL);
gchar *scale_str = g_strdup_printf("%.0f%%", round(scale * 100));
gtk_label_set_text(GTK_LABEL(g.toolbar[TOOLBAR_SCALE]), scale_str);
g_free(scale_str);
// FIXME: The label doesn't immediately assume its new width.
}
static void
on_notify_view_playing(
GObject *object, GParamSpec *param_spec, G_GNUC_UNUSED gpointer user_data)
{
gboolean b = FALSE;
g_object_get(object, g_param_spec_get_name(param_spec), &b, NULL);
const char *name = b
? "media-playback-pause-symbolic"
: "media-playback-start-symbolic";
GtkButton *button = GTK_BUTTON(g.toolbar[TOOLBAR_PLAY_PAUSE]);
GtkImage *image = GTK_IMAGE(gtk_button_get_image(button));
gtk_image_set_from_icon_name(image, name, GTK_ICON_SIZE_BUTTON);
}
static void
on_notify_view_boolean(
GObject *object, GParamSpec *param_spec, gpointer user_data)
{
gboolean b = FALSE;
g_object_get(object, g_param_spec_get_name(param_spec), &b, NULL);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(user_data), b);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
on_toolbar_view_toggle(GtkToggleButton *button, const char *property)
{
g_object_set(g.view, property, gtk_toggle_button_get_active(button), NULL);
}
static void
toolbar_toggler(int index, const char *property)
{
g_signal_connect(g.toolbar[index], "toggled",
G_CALLBACK(on_toolbar_view_toggle), (gpointer) property);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
on_toolbar_view_command(intptr_t command)
{
fiv_view_command(FIV_VIEW(g.view), command);
}
static void
toolbar_command(int index, FivViewCommand command)
{
g_signal_connect_swapped(g.toolbar[index], "clicked",
G_CALLBACK(on_toolbar_view_command), (void *) (intptr_t) command);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
toolbar_connect(int index, GCallback callback)
{
g_signal_connect_swapped(g.toolbar[index], "clicked", callback, NULL);
}
// TODO(p): The text and icons should be faded, unless the mouse cursor is
// on the toolbar. However, GtkEventBox is of no use, because either buttons
// steal our {enter,leave}-notify-events, or we steal all their input.
// Not even connecting to these signals on children works, insensitive buttons
// will not trigger anything.
// TODO(p): The toolbar should not be visible in fullscreen, or should show up
// only when the cursor reaches the top of the screen. Translucency sounds
// like a good mechanism here. Presumably, GtkOverlay could be used for this,
// but it faces the same problem as above--the input model sucks.
// TODO(p): Simply hide it in fullscreen and add a replacement context menu.
static GtkWidget *
make_view_toolbar(void)
{
#define XX(id, constructor) g.toolbar[TOOLBAR_ ## id] = constructor;
TOOLBAR(XX)
#undef XX
gtk_widget_set_margin_start(g.toolbar[TOOLBAR_SCALE], 5);
gtk_widget_set_margin_end(g.toolbar[TOOLBAR_SCALE], 5);
// So that the width doesn't jump around in the usual zoom range.
// Ideally, we'd measure the widest digit and use width(NNN%).
gtk_label_set_width_chars(GTK_LABEL(g.toolbar[TOOLBAR_SCALE]), 5);
gtk_widget_set_halign(g.toolbar[TOOLBAR_SCALE], GTK_ALIGN_CENTER);
// GtkStatusBar solves a problem we do not have here.
GtkWidget *view_toolbar = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_set_name(view_toolbar, "toolbar");
GtkBox *box = GTK_BOX(view_toolbar);
// Exploring different versions of awkward layouts.
for (int i = 0; i <= TOOLBAR_S1; i++)
gtk_box_pack_start(box, g.toolbar[i], FALSE, FALSE, 0);
for (int i = TOOLBAR_COUNT; --i >= TOOLBAR_S7; )
gtk_box_pack_end(box, g.toolbar[i], FALSE, FALSE, 0);
GtkWidget *center = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
for (int i = TOOLBAR_S1; ++i < TOOLBAR_S7; )
gtk_box_pack_start(GTK_BOX(center), g.toolbar[i], FALSE, FALSE, 0);
gtk_box_set_center_widget(box, center);
toolbar_connect(TOOLBAR_BROWSE, G_CALLBACK(switch_to_browser));
toolbar_connect(TOOLBAR_FILE_PREVIOUS, G_CALLBACK(on_previous));
toolbar_connect(TOOLBAR_FILE_NEXT, G_CALLBACK(on_next));
toolbar_command(TOOLBAR_PAGE_FIRST, FIV_VIEW_COMMAND_PAGE_FIRST);
toolbar_command(TOOLBAR_PAGE_PREVIOUS, FIV_VIEW_COMMAND_PAGE_PREVIOUS);
toolbar_command(TOOLBAR_PAGE_NEXT, FIV_VIEW_COMMAND_PAGE_NEXT);
toolbar_command(TOOLBAR_PAGE_LAST, FIV_VIEW_COMMAND_PAGE_LAST);
toolbar_command(TOOLBAR_SKIP_BACK, FIV_VIEW_COMMAND_FRAME_FIRST);
toolbar_command(TOOLBAR_SEEK_BACK, FIV_VIEW_COMMAND_FRAME_PREVIOUS);
toolbar_command(TOOLBAR_PLAY_PAUSE, FIV_VIEW_COMMAND_TOGGLE_PLAYBACK);
toolbar_command(TOOLBAR_SEEK_FORWARD, FIV_VIEW_COMMAND_FRAME_NEXT);
toolbar_command(TOOLBAR_MINUS, FIV_VIEW_COMMAND_ZOOM_OUT);
toolbar_command(TOOLBAR_PLUS, FIV_VIEW_COMMAND_ZOOM_IN);
toolbar_command(TOOLBAR_ONE, FIV_VIEW_COMMAND_ZOOM_1);
toolbar_toggler(TOOLBAR_FIT, "scale-to-fit");
toolbar_toggler(TOOLBAR_FIXATE, "fixate");
toolbar_toggler(TOOLBAR_COLOR, "enable-cms");
toolbar_toggler(TOOLBAR_SMOOTH, "filter");
toolbar_toggler(TOOLBAR_CHECKERBOARD, "checkerboard");
toolbar_toggler(TOOLBAR_ENHANCE, "enhance");
toolbar_command(TOOLBAR_PRINT, FIV_VIEW_COMMAND_PRINT);
toolbar_command(TOOLBAR_SAVE, FIV_VIEW_COMMAND_SAVE_PAGE);
toolbar_command(TOOLBAR_INFO, FIV_VIEW_COMMAND_INFO);
toolbar_command(TOOLBAR_LEFT, FIV_VIEW_COMMAND_ROTATE_LEFT);
toolbar_command(TOOLBAR_MIRROR, FIV_VIEW_COMMAND_MIRROR);
toolbar_command(TOOLBAR_RIGHT, FIV_VIEW_COMMAND_ROTATE_RIGHT);
toolbar_connect(TOOLBAR_FULLSCREEN, G_CALLBACK(toggle_fullscreen));
g_signal_connect(g.view, "notify::scale",
G_CALLBACK(on_notify_view_scale), NULL);
g_signal_connect(g.view, "notify::playing",
G_CALLBACK(on_notify_view_playing), NULL);
g_signal_connect(g.view, "notify::scale-to-fit",
G_CALLBACK(on_notify_view_boolean), g.toolbar[TOOLBAR_FIT]);
g_signal_connect(g.view, "notify::fixate",
G_CALLBACK(on_notify_view_boolean), g.toolbar[TOOLBAR_FIXATE]);
g_signal_connect(g.view, "notify::enable-cms",
G_CALLBACK(on_notify_view_boolean), g.toolbar[TOOLBAR_COLOR]);
g_signal_connect(g.view, "notify::filter",
G_CALLBACK(on_notify_view_boolean), g.toolbar[TOOLBAR_SMOOTH]);
g_signal_connect(g.view, "notify::checkerboard",
G_CALLBACK(on_notify_view_boolean), g.toolbar[TOOLBAR_CHECKERBOARD]);
g_signal_connect(g.view, "notify::enhance",
G_CALLBACK(on_notify_view_boolean), g.toolbar[TOOLBAR_ENHANCE]);
g_object_notify(G_OBJECT(g.view), "scale");
g_object_notify(G_OBJECT(g.view), "playing");
g_object_notify(G_OBJECT(g.view), "scale-to-fit");
g_object_notify(G_OBJECT(g.view), "fixate");
g_object_notify(G_OBJECT(g.view), "enable-cms");
g_object_notify(G_OBJECT(g.view), "filter");
g_object_notify(G_OBJECT(g.view), "checkerboard");
g_object_notify(G_OBJECT(g.view), "enhance");
#ifndef HAVE_LCMS2
gtk_widget_set_no_show_all(g.toolbar[TOOLBAR_COLOR], TRUE);
#endif
#ifndef HAVE_JPEG_QS
gtk_widget_set_no_show_all(g.toolbar[TOOLBAR_ENHANCE], TRUE);
#endif
GCallback callback = G_CALLBACK(on_view_actions_changed);
g_signal_connect(g.view, "notify::has-image", callback, NULL);
g_signal_connect(g.view, "notify::can-animate", callback, NULL);
g_signal_connect(g.view, "notify::has-previous-page", callback, NULL);
g_signal_connect(g.view, "notify::has-next-page", callback, NULL);
callback();
return view_toolbar;
}
static GtkWidget *
make_browser_sidebar(FivIoModel *model)
{
GtkWidget *sidebar = fiv_sidebar_new(model);
g_signal_connect(sidebar, "open-location",
G_CALLBACK(on_open_location), NULL);
g.plus = gtk_button_new_from_icon_name("zoom-in-symbolic",
GTK_ICON_SIZE_BUTTON);
gtk_widget_set_tooltip_text(g.plus, "Larger thumbnails");
g_signal_connect(g.plus, "clicked",
G_CALLBACK(on_toolbar_zoom), (gpointer) +1);
g.minus = gtk_button_new_from_icon_name("zoom-out-symbolic",
GTK_ICON_SIZE_BUTTON);
gtk_widget_set_tooltip_text(g.minus, "Smaller thumbnails");
g_signal_connect(g.minus, "clicked",
G_CALLBACK(on_toolbar_zoom), (gpointer) -1);
GtkWidget *zoom_group = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
gtk_style_context_add_class(
gtk_widget_get_style_context(zoom_group), GTK_STYLE_CLASS_LINKED);
gtk_box_pack_start(GTK_BOX(zoom_group), g.plus, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(zoom_group), g.minus, FALSE, FALSE, 0);
g.funnel = gtk_toggle_button_new();
gtk_container_add(GTK_CONTAINER(g.funnel),
gtk_image_new_from_icon_name("funnel-symbolic", GTK_ICON_SIZE_BUTTON));
gtk_widget_set_tooltip_text(g.funnel, "Hide unsupported files");
g_signal_connect(g.funnel, "toggled",
G_CALLBACK(on_filtering_toggled), NULL);
GtkWidget *menu = gtk_menu_new();
g.sort_field[0] = gtk_radio_menu_item_new_with_mnemonic(NULL, "By _Name");
g.sort_field[1] = gtk_radio_menu_item_new_with_mnemonic(
gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(g.sort_field[0])),
"By _Modification Time");
for (int i = FIV_IO_MODEL_SORT_MIN; i <= FIV_IO_MODEL_SORT_MAX; i++) {
g_signal_connect(g.sort_field[i], "activate",
G_CALLBACK(on_sort_field), (void *) (intptr_t) i);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), g.sort_field[i]);
}
g.sort_direction[0] =
gtk_radio_menu_item_new_with_mnemonic(NULL, "_Ascending");
g.sort_direction[1] = gtk_radio_menu_item_new_with_mnemonic(
gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(g.sort_direction[0])),
"_Descending");
g_signal_connect(g.sort_direction[0], "activate",
G_CALLBACK(on_sort_direction), (void *) 0);
g_signal_connect(g.sort_direction[1], "activate",
G_CALLBACK(on_sort_direction), (void *) 1);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), gtk_separator_menu_item_new());
gtk_menu_shell_append(GTK_MENU_SHELL(menu), g.sort_direction[0]);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), g.sort_direction[1]);
gtk_widget_show_all(menu);
GtkWidget *sort = gtk_menu_button_new();
gtk_widget_set_tooltip_text(sort, "Sort order");
gtk_button_set_image(GTK_BUTTON(sort),
gtk_image_new_from_icon_name(
"view-sort-ascending-symbolic", GTK_ICON_SIZE_BUTTON));
gtk_menu_button_set_popup(GTK_MENU_BUTTON(sort), menu);
GtkWidget *model_group = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
gtk_style_context_add_class(
gtk_widget_get_style_context(model_group), GTK_STYLE_CLASS_LINKED);
gtk_box_pack_start(GTK_BOX(model_group), g.funnel, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(model_group), sort, FALSE, FALSE, 0);
GtkBox *toolbar = fiv_sidebar_get_toolbar(FIV_SIDEBAR(sidebar));
gtk_box_pack_start(toolbar, zoom_group, FALSE, FALSE, 0);
gtk_box_pack_start(toolbar, model_group, FALSE, FALSE, 0);
gtk_widget_set_halign(GTK_WIDGET(toolbar), GTK_ALIGN_CENTER);
g_signal_connect(g.browser, "notify::thumbnail-size",
G_CALLBACK(on_notify_thumbnail_size), NULL);
g_signal_connect(model, "notify::filtering",
G_CALLBACK(on_notify_filtering), NULL);
g_signal_connect(model, "notify::sort-field",
G_CALLBACK(on_notify_sort_field), NULL);
g_signal_connect(model, "notify::sort-descending",
G_CALLBACK(on_notify_sort_descending), NULL);
on_toolbar_zoom(NULL, (gpointer) 0);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(g.funnel), TRUE);
// TODO(p): Invoke sort configuration notifications explicitly.
return sidebar;
}
static GtkWidget *
make_menu_bar(void)
{
g.menu = gtk_menu_bar_new();
GtkWidget *item_quit = gtk_menu_item_new_with_mnemonic("_Quit");
g_signal_connect_swapped(item_quit, "activate",
G_CALLBACK(gtk_widget_destroy), g.window);
GtkWidget *menu_file = gtk_menu_new();
gtk_menu_shell_append(GTK_MENU_SHELL(menu_file), item_quit);
GtkWidget *item_file = gtk_menu_item_new_with_mnemonic("_File");
gtk_menu_item_set_submenu(GTK_MENU_ITEM(item_file), menu_file);
gtk_menu_shell_append(GTK_MENU_SHELL(g.menu), item_file);
GtkWidget *item_contents = gtk_menu_item_new_with_mnemonic("_Contents");
g_signal_connect_swapped(item_contents, "activate",
G_CALLBACK(show_help_contents), NULL);
GtkWidget *item_shortcuts =
gtk_menu_item_new_with_mnemonic("_Keyboard Shortcuts");
g_signal_connect_swapped(item_shortcuts, "activate",
G_CALLBACK(show_help_shortcuts), NULL);
GtkWidget *item_about = gtk_menu_item_new_with_mnemonic("_About");
g_signal_connect_swapped(item_about, "activate",
G_CALLBACK(show_about_dialog), g.window);
GtkWidget *menu_help = gtk_menu_new();
gtk_menu_shell_append(GTK_MENU_SHELL(menu_help), item_contents);
gtk_menu_shell_append(GTK_MENU_SHELL(menu_help), item_shortcuts);
gtk_menu_shell_append(GTK_MENU_SHELL(menu_help), item_about);
GtkWidget *item_help = gtk_menu_item_new_with_mnemonic("_Help");
gtk_menu_item_set_submenu(GTK_MENU_ITEM(item_help), menu_help);
gtk_menu_shell_append(GTK_MENU_SHELL(g.menu), item_help);
// Don't let it take up space by default. Firefox sets a precedent here.
gtk_widget_show_all(g.menu);
gtk_widget_set_no_show_all(g.menu, TRUE);
gtk_widget_hide(g.menu);
g_signal_connect(g.menu, "deactivate", G_CALLBACK(gtk_widget_hide), NULL);
return g.menu;
}
// This is incredibly broken https://stackoverflow.com/a/51054396/76313
// thus resolving the problem using overlaps.
// We're trying to be universal for light and dark themes both. It's hard.
static const char stylesheet[] = "@define-color fiv-tile @content_view_bg; \
@define-color fiv-semiselected \
mix(@theme_selected_bg_color, @content_view_bg, 0.5); \
fiv-view, fiv-browser { background: @content_view_bg; } \
placessidebar.fiv .toolbar { padding: 2px 6px; } \
placessidebar.fiv box > separator { margin: 4px 0; } \
#toolbar button { padding-left: 0; padding-right: 0; } \
#toolbar > button:first-child { padding-left: 4px; } \
#toolbar > button:last-child { padding-right: 4px; } \
#toolbar separator { \
background: mix(@insensitive_fg_color, \
@insensitive_bg_color, 0.4); margin: 6px 8px; \
} \
fiv-browser { padding: 5px; } \
fiv-browser.item { \
/* For non-symbolic, color is applied to the glowing margin. */ \
color: mix(#000, @content_view_bg, 0.625); margin: 8px; \
border: 2px solid #fff; \
} \
fiv-browser.item, fiv-view.checkerboard { \
background: @theme_bg_color; background-image: \
linear-gradient(45deg, @fiv-tile 26%, transparent 26%), \
linear-gradient(-45deg, @fiv-tile 26%, transparent 26%), \
linear-gradient(45deg, transparent 74%, @fiv-tile 74%), \
linear-gradient(-45deg, transparent 74%, @fiv-tile 74%); \
background-size: 40px 40px; \
background-position: 0 0, 0 20px, 20px -20px, -20px 0px; \
} \
fiv-browser.item:selected { \
color: @theme_selected_bg_color; \
border-color: @theme_selected_bg_color; \
} \
fiv-browser.item:selected:not(:focus) { \
color: @fiv-semiselected; \
border-color: @fiv-semiselected; \
} \
fiv-browser.item:backdrop:not(:selected) { \
color: mix(#000, @content_view_bg, 0.875); \
border-color: mix(#fff, @content_view_bg, 0.5); \
} \
fiv-browser.item.symbolic, \
fiv-browser.item.symbolic:selected, \
fiv-browser.item.symbolic:backdrop { \
color: shade(@theme_bg_color, 0.875); \
border-color: transparent; \
} \
fiv-browser.item.symbolic { \
background-blend-mode: color; \
background: @theme_bg_color; background-image: none; \
} \
fiv-browser.item.symbolic:selected { \
color: @theme_selected_bg_color; background-image: linear-gradient(0, \
@theme_selected_bg_color, @theme_selected_bg_color); \
} \
fiv-browser.item.symbolic:selected:not(:focus) { \
color: @fiv-semiselected; background-image: linear-gradient(0, \
@fiv-semiselected, @fiv-semiselected); \
} \
.fiv-information label { padding: 0 4px; }";
static void
output_thumbnail(gchar **uris, gboolean extract, const char *size_arg)
{
if (!uris)
exit_fatal("No path given");
if (uris[1])
exit_fatal("Only one thumbnail at a time may be produced");
FivThumbnailSize size = FIV_THUMBNAIL_SIZE_COUNT;
if (size_arg) {
for (size = 0; size < FIV_THUMBNAIL_SIZE_COUNT; size++) {
if (!strcmp(
fiv_thumbnail_sizes[size].thumbnail_spec_name, size_arg))
break;
}
if (size >= FIV_THUMBNAIL_SIZE_COUNT)
exit_fatal("unknown thumbnail size: %s", size_arg);
}
#ifdef G_OS_WIN32
_setmode(fileno(stdout), _O_BINARY);
#endif // G_OS_WIN32
GError *error = NULL;
GFile *file = g_file_new_for_uri(uris[0]);
cairo_surface_t *surface = NULL;
if (extract && (surface = fiv_thumbnail_extract(file, size, &error)))
fiv_io_serialize_to_stdout(surface, FIV_IO_SERIALIZE_LOW_QUALITY);
else if (size_arg &&
(g_clear_error(&error),
(surface = fiv_thumbnail_produce(file, size, &error))))
fiv_io_serialize_to_stdout(surface, 0);
else
g_assert(error != NULL);
g_object_unref(file);
if (error)
exit_fatal("%s", error->message);
cairo_surface_destroy(surface);
}
int
main(int argc, char *argv[])
{
gboolean show_version = FALSE, show_supported_media_types = FALSE,
invalidate_cache = FALSE, browse = FALSE, extract_thumbnail = FALSE;
gchar **args = NULL, *thumbnail_size = NULL;
const GOptionEntry options[] = {
{G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &args,
NULL, "[PATH | URI]..."},
{"list-supported-media-types", 0, G_OPTION_FLAG_IN_MAIN,
G_OPTION_ARG_NONE, &show_supported_media_types,
"Output supported media types and exit", NULL},
{"browse", 0, G_OPTION_FLAG_IN_MAIN,
G_OPTION_ARG_NONE, &browse,
"Start in filesystem browsing mode", NULL},
{"extract-thumbnail", 0, G_OPTION_FLAG_IN_MAIN,
G_OPTION_ARG_NONE, &extract_thumbnail,
"Output any embedded thumbnail (superseding --thumbnail)", NULL},
{"thumbnail", 0, G_OPTION_FLAG_IN_MAIN,
G_OPTION_ARG_STRING, &thumbnail_size,
"Generate thumbnails, up to SIZE, and output that size", "SIZE"},
{"invalidate-cache", 0, G_OPTION_FLAG_IN_MAIN,
G_OPTION_ARG_NONE, &invalidate_cache,
"Invalidate the wide thumbnail cache", NULL},
{"version", 'V', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
&show_version, "Output version information and exit", NULL},
{},
};
GError *error = NULL;
gboolean initialized = gtk_init_with_args(
&argc, &argv, " - Image browser and viewer", options, NULL, &error);
if (show_version) {
printf(PROJECT_NAME " " PROJECT_VERSION "\n");
return 0;
}
if (show_supported_media_types) {
for (char **types = fiv_io_all_supported_media_types(); *types; )
g_print("%s\n", *types++);
return 0;
}
if (invalidate_cache) {
fiv_thumbnail_invalidate();
return 0;
}
if (!initialized)
exit_fatal("%s", error->message);
// Normalize all arguments to URIs.
for (gsize i = 0; args && args[i]; i++) {
GFile *resolved = g_file_new_for_commandline_arg(args[i]);
g_free(args[i]);
args[i] = g_file_get_uri(resolved);
g_object_unref(resolved);
}
if (extract_thumbnail || thumbnail_size) {
output_thumbnail(args, extract_thumbnail, thumbnail_size);
return 0;
}
// It doesn't make much sense to have command line arguments able to
// resolve to the VFS they may end up being contained within.
fiv_collection_register();
g.model = g_object_new(FIV_TYPE_IO_MODEL, NULL);
g_signal_connect(g.model, "files-changed",
G_CALLBACK(on_model_files_changed), NULL);
gtk_window_set_default_icon_name(PROJECT_NAME);
gtk_icon_theme_add_resource_path(
gtk_icon_theme_get_default(), "/org/gnome/design/IconLibrary/");
GtkCssProvider *provider = gtk_css_provider_new();
gtk_css_provider_load_from_data(
provider, stylesheet, sizeof stylesheet - 1, NULL);
gtk_style_context_add_provider_for_screen(gdk_screen_get_default(),
GTK_STYLE_PROVIDER(provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
g_object_unref(provider);
GtkWidget *view_scroller = gtk_scrolled_window_new(NULL, NULL);
g.view = g_object_new(FIV_TYPE_VIEW, NULL);
gtk_drag_dest_set(g.view, GTK_DEST_DEFAULT_ALL, NULL, 0, GDK_ACTION_COPY);
gtk_drag_dest_add_uri_targets(g.view);
g_signal_connect(g.view, "key-press-event",
G_CALLBACK(on_key_press_view), NULL);
g_signal_connect(g.view, "button-press-event",
G_CALLBACK(on_button_press_view), NULL);
g_signal_connect(g.view, "drag-data-received",
G_CALLBACK(on_view_drag_data_received), NULL);
gtk_container_add(GTK_CONTAINER(view_scroller), g.view);
// We need to hide it together with the separator.
g.view_toolbar = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start(GTK_BOX(g.view_toolbar),
make_view_toolbar(), FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(g.view_toolbar),
gtk_separator_new(GTK_ORIENTATION_VERTICAL), FALSE, FALSE, 0);
g.view_info = gtk_info_bar_new();
// The button cannot be made flat or reflect the message type under Adwaita.
gtk_info_bar_set_show_close_button(GTK_INFO_BAR(g.view_info), TRUE);
// Do not use gtk_info_bar_set_revealed(), as it animates.
gtk_info_bar_set_message_type(GTK_INFO_BAR(g.view_info), GTK_MESSAGE_ERROR);
g_signal_connect(g.view_info, "response",
G_CALLBACK(gtk_widget_hide), NULL);
g.view_info_label = gtk_label_new(NULL);
gtk_label_set_line_wrap(GTK_LABEL(g.view_info_label), TRUE);
gtk_container_add(
GTK_CONTAINER(gtk_info_bar_get_content_area(GTK_INFO_BAR(g.view_info))),
g.view_info_label);
g_signal_connect(g.view, "notify::messages",
G_CALLBACK(on_notify_view_messages), NULL);
gtk_widget_show_all(g.view_info);
gtk_widget_set_no_show_all(g.view_info, TRUE);
gtk_widget_hide(g.view_info);
// Need to put the toolbar at the top, because of the horizontal scrollbar.
g.view_box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start(GTK_BOX(g.view_box), g.view_toolbar, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(g.view_box), g.view_info, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(g.view_box), view_scroller, TRUE, TRUE, 0);
g.browser_scroller = gtk_scrolled_window_new(NULL, NULL);
g.browser = fiv_browser_new(g.model);
gtk_widget_set_vexpand(g.browser, TRUE);
gtk_widget_set_hexpand(g.browser, TRUE);
g_signal_connect(g.browser, "item-activated",
G_CALLBACK(on_item_activated), NULL);
gtk_container_add(GTK_CONTAINER(g.browser_scroller), g.browser);
g.browser_sidebar = make_browser_sidebar(g.model);
g.browser_paned = gtk_paned_new(GTK_ORIENTATION_HORIZONTAL);
gtk_paned_add1(GTK_PANED(g.browser_paned), g.browser_sidebar);
gtk_paned_add2(GTK_PANED(g.browser_paned), g.browser_scroller);
g_signal_connect(g.browser_paned, "key-press-event",
G_CALLBACK(on_key_press_browser_paned), NULL);
g_signal_connect(g.browser_paned, "button-press-event",
G_CALLBACK(on_button_press_browser_paned), NULL);
g.stack = gtk_stack_new();
gtk_stack_set_transition_type(
GTK_STACK(g.stack), GTK_STACK_TRANSITION_TYPE_NONE);
gtk_container_add(GTK_CONTAINER(g.stack), g.view_box);
gtk_container_add(GTK_CONTAINER(g.stack), g.browser_paned);
g.window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(g.window, "destroy",
G_CALLBACK(gtk_main_quit), NULL);
g_signal_connect(g.window, "key-press-event",
G_CALLBACK(on_key_press), NULL);
g_signal_connect(g.window, "window-state-event",
G_CALLBACK(on_window_state_event), NULL);
GtkWidget *menu_box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add(GTK_CONTAINER(menu_box), make_menu_bar());
gtk_container_add(GTK_CONTAINER(menu_box), g.stack);
gtk_container_add(GTK_CONTAINER(g.window), menu_box);
GSettings *settings = g_settings_new(PROJECT_NS PROJECT_NAME);
if (g_settings_get_boolean(settings, "dark-theme"))
toggle_sunlight();
g_object_set(g.browser, "thumbnail-size",
g_settings_get_enum(settings, "thumbnail-size"), NULL);
gtk_widget_show_all(menu_box);
gtk_widget_set_visible(g.browser_sidebar,
g_settings_get_boolean(settings, "show-browser-sidebar"));
gtk_widget_set_visible(g.view_toolbar,
g_settings_get_boolean(settings, "show-view-toolbar"));
// Try to get half of the screen vertically, in 4:3 aspect ratio.
//
// We need the GdkMonitor before the GtkWindow has a GdkWindow (i.e.,
// before it is realized). Take the smallest dimensions, out of desperation.
GdkDisplay *display = gtk_widget_get_display(g.window);
int unit = G_MAXINT;
for (int i = gdk_display_get_n_monitors(display); i--; ) {
GdkRectangle geometry = {};
gdk_monitor_get_geometry(
gdk_display_get_monitor(display, i), &geometry);
unit = MIN(unit, MIN(geometry.width, geometry.height) / 6);
}
// Ask for at least 800x600, to cover ridiculously heterogenous setups.
unit = MAX(200, unit);
gtk_window_set_default_size(GTK_WINDOW(g.window), 4 * unit, 3 * unit);
#ifdef GDK_WINDOWING_QUARTZ
// Otherwise the window simply opens at (0, 0),
// while other macOS applications are more likely to start centered.
if (GDK_IS_QUARTZ_DISPLAY(display))
gtk_window_set_position(GTK_WINDOW(g.window), GTK_WIN_POS_CENTER);
#endif // GDK_WINDOWING_QUARTZ
// XXX: The widget wants to read the display's profile. The realize is ugly.
gtk_widget_realize(g.view);
// XXX: We follow the behaviour of Firefox and Eye of GNOME, which both
// interpret multiple command line arguments differently, as a collection.
// However, single-element collections are unrepresentable this way.
// Should we allow multiple targets only in a special new mode?
g.files = g_ptr_array_new_full(0, g_free);
if (args) {
const gchar *target = *args;
if (args[1]) {
fiv_collection_reload(args);
target = FIV_COLLECTION_SCHEME ":/";
}
GFile *file = g_file_new_for_uri(target);
open_any_file(file, browse);
g_object_unref(file);
g_strfreev(args);
}
if (!g.directory) {
GFile *file = g_file_new_for_path(".");
open_any_file(file, FALSE);
g_object_unref(file);
}
gtk_widget_show(g.window);
gtk_main();
return 0;
}
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