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file-browser: disable buttons in toolbar as appropriate

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This commit is contained in:
K. Lange 2018-11-24 14:11:02 +09:00
parent 3dc166607d
commit e9c4accd6e
1 changed files with 16 additions and 9 deletions
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25
apps/file-browser.c
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@ -69,6 +69,10 @@ static uint64_t last_click = 0; /* For double click */
static int last_click_offset = -1; /* So that clicking two different things quickly doesn't count as a double click */
static int modifiers = 0; /* For ctrl-click */
static int _button_hilights[4] = {3,3,3,3};
static int _button_disabled[4] = {1,1,0,0};
static int _button_hover = -1;
/* Menu bar entries */
static struct menu_bar menu_bar = {0};
static struct menu_bar_entries menu_entries[] = {
@ -239,10 +243,6 @@ static void set_title(char * directory) {
/* If the directory name is set... */
if (directory) {
/* Translate / to File System */
if (!strcmp(directory, "/")) {
directory = "File System";
}
sprintf(title, "%s - " APPLICATION_TITLE, directory);
} else {
/* Otherwise, just "File Browser" */
@ -316,10 +316,19 @@ static void load_directory(const char * path, int modifies_history) {
free(current_directory);
}
_button_disabled[0] = !(history_back->length);
_button_disabled[1] = !(history_forward->length);
_button_disabled[2] = 0;
_button_disabled[3] = 0;
char * home = getenv("HOME");
if (home && !strcmp(path, home)) {
/* If the current directory is the user's homedir, present it that way in the title */
set_title("Home");
_button_disabled[3] = 1;
} else if (!strcmp(path, "/")) {
set_title("File System");
_button_disabled[2] = 1;
} else {
/* Otherwise use just the directory base name */
char * tmp = strdup(path);
@ -536,9 +545,6 @@ static void sig_usr2(int sig) {
signal(SIGUSR2, sig_usr2);
}
static int _button_hilights[4] = {3,3,3,3};
static int _button_hover = -1;
/**
* Redraw the entire window.
*/
@ -575,7 +581,7 @@ static void redraw_window(void) {
int x = 0;
int i = 0;
#define draw_button(label) do { \
struct TTKButton _up = {bounds.left_width + 2 + x,bounds.top_height + MENU_BAR_HEIGHT + 2,32,32,"\033" label,_button_hilights[i]}; \
struct TTKButton _up = {bounds.left_width + 2 + x,bounds.top_height + MENU_BAR_HEIGHT + 2,32,32,"\033" label,_button_hilights[i] | (_button_disabled[i] << 8)}; \
ttk_button_draw(ctx, &_up); \
x += 34; i++; } while (0)
@ -944,7 +950,7 @@ static void _set_hilight(int index, int hilight) {
_button_hilights[_button_hover] = 3;
}
_button_hover = index;
if (index != -1) {
if (index != -1 && !_button_disabled[index]) {
_button_hilights[_button_hover] = hilight;
}
redraw_window();
@ -952,6 +958,7 @@ static void _set_hilight(int index, int hilight) {
}
static void _handle_button_press(int index) {
if (index != -1 && _button_disabled[index]) return; /* can't click disabled buttons */
switch (index) {
case 0:
/* Back */