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rofi/source/widgets/listview.c
Dave Davenport dac09b8728 Cleanups based on cppcheck.
2021-12-01 13:14:36 +01:00

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/*
* rofi
*
* MIT/X11 License
* Copyright © 2013-2021 Qball Cow <qball@gmpclient.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <config.h>
#include <glib.h>
#include <widgets/box.h>
#include <widgets/icon.h>
#include <widgets/listview.h>
#include <widgets/scrollbar.h>
#include <widgets/textbox.h>
#include <widgets/widget.h>
#include "settings.h"
#include "theme.h"
#include "timings.h"
/** Default spacing between the elements in the listview. */
#define DEFAULT_SPACING 2
/**
* Orientation of the listview
*/
/** Vertical (classical) list */
#define LISTVIEW ROFI_ORIENTATION_VERTICAL
/** Horizontal list. (barview) */
#define BARVIEW ROFI_ORIENTATION_HORIZONTAL
/**
* The moving direction of the selection, this (in barview) affects the
* scrolling.
*/
typedef enum { LEFT_TO_RIGHT = 0, RIGHT_TO_LEFT = 1 } MoveDirection;
typedef struct {
box *box;
textbox *textbox;
textbox *index;
icon *icon;
} _listview_row;
struct _listview {
widget widget;
RofiOrientation type;
// RChanged
// Text needs to be repainted.
unsigned int rchanged;
// Administration
unsigned int cur_page;
unsigned int last_offset;
unsigned int selected;
unsigned int element_height;
unsigned int max_rows;
unsigned int max_elements;
//
gboolean fixed_columns;
unsigned int cur_columns;
unsigned int req_elements;
unsigned int cur_elements;
RofiDistance spacing;
unsigned int menu_lines;
unsigned int max_displayed_lines;
unsigned int menu_columns;
unsigned int fixed_num_lines;
unsigned int dynamic;
unsigned int eh;
unsigned int reverse;
gboolean cycle;
gboolean multi_select;
ScrollType scroll_type;
_listview_row *boxes;
scrollbar *scrollbar;
listview_update_callback callback;
void *udata;
gboolean scrollbar_scroll;
xcb_timestamp_t last_click;
listview_mouse_activated_cb mouse_activated;
void *mouse_activated_data;
char *listview_name;
PangoEllipsizeMode emode;
/** Barview */
struct {
MoveDirection direction;
unsigned int cur_visible;
} barview;
};
/**
* Names used for theming the elements in the listview.
* Each row can have 3 modes, normal, selected and alternate.
* Each row can have 3 states, normal, urgent and active.
*/
const char *const listview_theme_prop_names[][3] = {
/** Normal row */
{"normal.normal", "selected.normal", "alternate.normal"},
/** Urgent row */
{"normal.urgent", "selected.urgent", "alternate.urgent"},
/** Active row */
{"normal.active", "selected.active", "alternate.active"},
};
static void listview_set_state(_listview_row r, TextBoxFontType tbft) {
widget *w = WIDGET(r.box);
TextBoxFontType t = tbft & STATE_MASK;
if (w == NULL) {
return;
}
// ACTIVE has priority over URGENT if both set.
if (t == (URGENT | ACTIVE)) {
t = ACTIVE;
}
switch ((tbft & FMOD_MASK)) {
case HIGHLIGHT:
widget_set_state(w, listview_theme_prop_names[t][1]);
break;
case ALT:
widget_set_state(w, listview_theme_prop_names[t][2]);
break;
default:
widget_set_state(w, listview_theme_prop_names[t][0]);
break;
}
}
static void listview_add_widget(listview *lv, _listview_row *row, widget *wid,
const char *label) {
TextboxFlags flags = (lv->multi_select) ? TB_INDICATOR : 0;
if (strcasecmp(label, "element-icon") == 0) {
row->icon = icon_create(WIDGET(wid), "element-icon");
box_add((box *)wid, WIDGET(row->icon), FALSE);
} else if (strcasecmp(label, "element-text") == 0) {
row->textbox =
textbox_create(WIDGET(wid), WIDGET_TYPE_TEXTBOX_TEXT, "element-text",
TB_AUTOHEIGHT | flags, NORMAL, "DDD", 0, 0);
box_add((box *)wid, WIDGET(row->textbox), TRUE);
} else if (strcasecmp(label, "element-index") == 0) {
row->index =
textbox_create(WIDGET(wid), WIDGET_TYPE_TEXTBOX_TEXT, "element-index",
TB_AUTOHEIGHT, NORMAL, " ", 0, 0);
box_add((box *)wid, WIDGET(row->index), FALSE);
} else {
widget *wid2 = (widget *)box_create(wid, label, ROFI_ORIENTATION_VERTICAL);
box_add((box *)wid, WIDGET(wid2), TRUE);
GList *list = rofi_theme_get_list(WIDGET(wid2), "children", "");
for (GList *iter = g_list_first(list); iter != NULL;
iter = g_list_next(iter)) {
listview_add_widget(lv, row, wid2, (const char *)iter->data);
}
}
}
static void listview_create_row(listview *lv, _listview_row *row) {
row->box = box_create(WIDGET(lv), "element", ROFI_ORIENTATION_HORIZONTAL);
widget_set_type(WIDGET(row->box), WIDGET_TYPE_LISTVIEW_ELEMENT);
GList *list = NULL;
if (config.show_icons) {
list = rofi_theme_get_list(WIDGET(row->box), "children",
"element-icon,element-text");
} else {
list = rofi_theme_get_list(WIDGET(row->box), "children", "element-text");
}
row->textbox = NULL;
row->icon = NULL;
row->index = NULL;
for (GList *iter = g_list_first(list); iter != NULL;
iter = g_list_next(iter)) {
listview_add_widget(lv, row, WIDGET(row->box), (const char *)iter->data);
}
g_list_free_full(list, g_free);
}
static int listview_get_desired_height(widget *wid, const int width);
static void listview_free(widget *wid) {
listview *lv = (listview *)wid;
for (unsigned int i = 0; i < lv->cur_elements; i++) {
widget_free(WIDGET(lv->boxes[i].box));
}
g_free(lv->boxes);
g_free(lv->listview_name);
widget_free(WIDGET(lv->scrollbar));
g_free(lv);
}
static unsigned int scroll_per_page_barview(listview *lv) {
unsigned int offset = lv->last_offset;
// selected row is always visible.
// If selected is visible do not scroll.
if (lv->selected < lv->last_offset) {
offset = lv->selected;
lv->rchanged = TRUE;
} else if (lv->selected >= (lv->last_offset + lv->barview.cur_visible)) {
offset = lv->selected;
lv->rchanged = TRUE;
}
return offset;
}
static unsigned int scroll_per_page(listview *lv) {
int offset = 0;
// selected row is always visible.
// If selected is visible do not scroll.
if (((lv->selected - (lv->last_offset)) < (lv->max_elements)) &&
(lv->selected >= (lv->last_offset))) {
offset = lv->last_offset;
} else {
// Do paginating
unsigned int page =
(lv->max_elements > 0) ? (lv->selected / lv->max_elements) : 0;
offset = page * lv->max_elements;
if (page != lv->cur_page) {
lv->cur_page = page;
lv->rchanged = TRUE;
}
// Set the position
// scrollbar_set_handle ( lv->scrollbar, page * lv->max_elements );
}
return offset;
}
static unsigned int scroll_continious(listview *lv) {
unsigned int middle = (lv->max_rows - ((lv->max_rows & 1) == 0)) / 2;
unsigned int offset = 0;
if (lv->selected > middle) {
if (lv->selected < (lv->req_elements - (lv->max_rows - middle))) {
offset = lv->selected - middle;
}
// Don't go below zero.
else if (lv->req_elements > lv->max_rows) {
offset = lv->req_elements - lv->max_rows;
}
}
if (offset != lv->cur_page) {
// scrollbar_set_handle ( lv->scrollbar, offset );
lv->cur_page = offset;
lv->rchanged = TRUE;
}
return offset;
}
static void update_element(listview *lv, unsigned int tb, unsigned int index,
gboolean full) {
// Select drawing mode
TextBoxFontType type = (index & 1) == 0 ? NORMAL : ALT;
type = (index) == lv->selected ? HIGHLIGHT : type;
if (lv->boxes[tb].index) {
if (index < 10) {
char str[2] = {((index + 1) % 10) + '0', '\0'};
textbox_text(lv->boxes[tb].index, str);
} else {
textbox_text(lv->boxes[tb].index, " ");
}
}
if (lv->callback) {
lv->callback(lv->boxes[tb].textbox, lv->boxes[tb].icon, index, lv->udata,
&type, full);
listview_set_state(lv->boxes[tb], type);
}
}
static void barview_draw(widget *wid, cairo_t *draw) {
unsigned int offset = 0;
listview *lv = (listview *)wid;
offset = scroll_per_page_barview(lv);
lv->last_offset = offset;
int spacing_hori =
distance_get_pixel(lv->spacing, ROFI_ORIENTATION_HORIZONTAL);
int left_offset = widget_padding_get_left(wid);
int right_offset = lv->widget.w - widget_padding_get_right(wid);
int top_offset = widget_padding_get_top(wid);
if (lv->cur_elements > 0) {
// Set new x/y position.
unsigned int max = MIN(lv->cur_elements, lv->req_elements - offset);
if (lv->rchanged) {
int first = TRUE;
int width = lv->widget.w;
lv->barview.cur_visible = 0;
width -= widget_padding_get_padding_width(wid);
if (lv->barview.direction == LEFT_TO_RIGHT) {
for (unsigned int i = 0; i < max && width > 0; i++) {
update_element(lv, i, i + offset, TRUE);
int twidth = widget_get_desired_width(WIDGET(lv->boxes[i].box),
lv->element_height);
if (twidth >= width) {
if (!first) {
break;
}
twidth = width;
}
widget_move(WIDGET(lv->boxes[i].box), left_offset, top_offset);
widget_resize(WIDGET(lv->boxes[i].box), twidth, lv->element_height);
widget_draw(WIDGET(lv->boxes[i].box), draw);
width -= twidth + spacing_hori;
left_offset += twidth + spacing_hori;
first = FALSE;
lv->barview.cur_visible++;
}
} else {
for (unsigned int i = 0;
i < lv->cur_elements && width > 0 && i <= offset; i++) {
update_element(lv, i, offset - i, TRUE);
int twidth = widget_get_desired_width(WIDGET(lv->boxes[i].box),
lv->element_height);
if (twidth >= width) {
if (!first) {
break;
}
twidth = width;
}
right_offset -= twidth;
widget_move(WIDGET(lv->boxes[i].box), right_offset, top_offset);
widget_resize(WIDGET(lv->boxes[i].box), twidth, lv->element_height);
widget_draw(WIDGET(lv->boxes[i].box), draw);
width -= twidth + spacing_hori;
right_offset -= spacing_hori;
first = FALSE;
lv->barview.cur_visible++;
}
offset -= lv->barview.cur_visible - 1;
lv->last_offset = offset;
for (unsigned int i = 0; i < (lv->barview.cur_visible / 2); i++) {
_listview_row temp = lv->boxes[i];
int sw = lv->barview.cur_visible - i - 1;
lv->boxes[i] = lv->boxes[sw];
lv->boxes[sw] = temp;
}
}
lv->rchanged = FALSE;
} else {
for (unsigned int i = 0; i < lv->barview.cur_visible; i++) {
update_element(lv, i, i + offset, TRUE);
widget_draw(WIDGET(lv->boxes[i].box), draw);
}
}
}
}
static void listview_draw(widget *wid, cairo_t *draw) {
unsigned int offset = 0;
listview *lv = (listview *)wid;
if (lv->scroll_type == LISTVIEW_SCROLL_CONTINIOUS) {
offset = scroll_continious(lv);
} else {
offset = scroll_per_page(lv);
}
// Set these all together to make sure they update consistently.
scrollbar_set_max_value(lv->scrollbar, lv->req_elements);
scrollbar_set_handle_length(lv->scrollbar, lv->cur_columns * lv->max_rows);
if (lv->reverse) {
scrollbar_set_handle(lv->scrollbar, lv->req_elements - lv->selected - 1);
} else {
scrollbar_set_handle(lv->scrollbar, lv->selected);
}
lv->last_offset = offset;
int spacing_vert = distance_get_pixel(lv->spacing, ROFI_ORIENTATION_VERTICAL);
int spacing_hori =
distance_get_pixel(lv->spacing, ROFI_ORIENTATION_HORIZONTAL);
int left_offset = widget_padding_get_left(wid);
int top_offset = widget_padding_get_top(wid);
/*
if ( lv->scrollbar->widget.index == 0 ) {
left_offset += spacing_hori + lv->scrollbar->widget.w;
}
*/
if (lv->cur_elements > 0 && lv->max_rows > 0) {
// Set new x/y position.
unsigned int max = MIN(lv->cur_elements, lv->req_elements - offset);
if (lv->rchanged) {
unsigned int width = lv->widget.w;
width -= widget_padding_get_padding_width(wid);
if (widget_enabled(WIDGET(lv->scrollbar))) {
width -= spacing_hori;
width -= widget_get_width(WIDGET(lv->scrollbar));
}
unsigned int element_width =
(width - spacing_hori * (lv->cur_columns - 1)) / lv->cur_columns;
int d = width - (element_width + spacing_hori) * (lv->cur_columns - 1) -
element_width;
if (lv->cur_columns > 1) {
int diff = d / (lv->cur_columns - 1);
if (diff >= 1) {
spacing_hori += 1;
d -= lv->cur_columns - 1;
}
}
for (unsigned int i = 0; i < max; i++) {
unsigned int ex =
left_offset + ((i) / lv->max_rows) * (element_width + spacing_hori);
if ((i) / lv->max_rows == (lv->cur_columns - 1)) {
ex += d;
}
if (lv->reverse) {
unsigned int ey =
wid->h -
(widget_padding_get_bottom(wid) +
((i) % lv->max_rows) * (lv->element_height + spacing_vert)) -
lv->element_height;
widget_move(WIDGET(lv->boxes[i].box), ex, ey);
widget_resize(WIDGET(lv->boxes[i].box), element_width,
lv->element_height);
} else {
unsigned int ey =
top_offset +
((i) % lv->max_rows) * (lv->element_height + spacing_vert);
widget_move(WIDGET(lv->boxes[i].box), ex, ey);
widget_resize(WIDGET(lv->boxes[i].box), element_width,
lv->element_height);
}
update_element(lv, i, i + offset, TRUE);
widget_draw(WIDGET(lv->boxes[i].box), draw);
}
lv->rchanged = FALSE;
} else {
for (unsigned int i = 0; i < max; i++) {
update_element(lv, i, i + offset, TRUE);
widget_draw(WIDGET(lv->boxes[i].box), draw);
}
}
}
widget_draw(WIDGET(lv->scrollbar), draw);
}
static WidgetTriggerActionResult
listview_element_trigger_action(widget *wid,
MouseBindingListviewElementAction action,
gint x, gint y, void *user_data);
static gboolean listview_element_motion_notify(widget *wid, gint x, gint y);
static void _listview_draw(widget *wid, cairo_t *draw) {
listview *lv = (listview *)wid;
if (lv->type == LISTVIEW) {
listview_draw(wid, draw);
} else {
barview_draw(wid, draw);
}
}
/**
* State names used for theming.
*/
static void listview_recompute_elements(listview *lv) {
unsigned int newne = 0;
if (lv->max_rows == 0) {
return;
}
if (!(lv->fixed_columns) && lv->req_elements < lv->max_elements) {
newne = lv->req_elements;
lv->cur_columns = (lv->req_elements + (lv->max_rows - 1)) / lv->max_rows;
} else {
newne = MIN(lv->req_elements, lv->max_elements);
lv->cur_columns = lv->menu_columns;
}
for (unsigned int i = newne; i < lv->cur_elements; i++) {
widget_free(WIDGET(lv->boxes[i].box));
}
lv->boxes = g_realloc(lv->boxes, newne * sizeof(_listview_row));
if (newne > 0) {
for (unsigned int i = lv->cur_elements; i < newne; i++) {
listview_create_row(lv, &(lv->boxes[i]));
widget *wid = WIDGET(lv->boxes[i].box);
widget_set_trigger_action_handler(wid, listview_element_trigger_action,
lv);
if (wid != NULL) {
wid->motion_notify = listview_element_motion_notify;
}
listview_set_state(lv->boxes[i], NORMAL);
}
}
lv->rchanged = TRUE;
lv->cur_elements = newne;
}
void listview_set_num_elements(listview *lv, unsigned int rows) {
if (lv == NULL) {
return;
}
TICK_N("listview_set_num_elements");
lv->req_elements = rows;
listview_set_selected(lv, lv->selected);
TICK_N("Set selected");
listview_recompute_elements(lv);
TICK_N("recompute elements");
widget_queue_redraw(WIDGET(lv));
TICK_N("queue redraw");
}
unsigned int listview_get_selected(listview *lv) {
if (lv != NULL) {
return lv->selected;
}
return 0;
}
void listview_set_selected(listview *lv, unsigned int selected) {
if (lv && lv->req_elements > 0) {
lv->selected = MIN(selected, lv->req_elements - 1);
lv->barview.direction = LEFT_TO_RIGHT;
widget_queue_redraw(WIDGET(lv));
}
}
static void listview_resize(widget *wid, short w, short h) {
listview *lv = (listview *)wid;
lv->widget.w = MAX(0, w);
lv->widget.h = MAX(0, h);
int height = lv->widget.h - widget_padding_get_padding_height(WIDGET(lv));
int spacing_vert = distance_get_pixel(lv->spacing, ROFI_ORIENTATION_VERTICAL);
lv->max_rows = (spacing_vert + height) / (lv->element_height + spacing_vert);
lv->max_elements = lv->max_rows * lv->menu_columns;
widget_move(WIDGET(lv->scrollbar),
lv->widget.w - widget_padding_get_right(WIDGET(lv)) -
widget_get_width(WIDGET(lv->scrollbar)),
widget_padding_get_top(WIDGET(lv)));
widget_resize(WIDGET(lv->scrollbar), widget_get_width(WIDGET(lv->scrollbar)),
height);
if (lv->type == BARVIEW) {
lv->max_elements = lv->menu_lines;
}
listview_recompute_elements(lv);
widget_queue_redraw(wid);
}
static widget *listview_find_mouse_target(widget *wid, WidgetType type, gint x,
gint y) {
widget *target = NULL;
gint rx, ry;
listview *lv = (listview *)wid;
if (widget_enabled(WIDGET(lv->scrollbar)) &&
widget_intersect(WIDGET(lv->scrollbar), x, y)) {
rx = x - widget_get_x_pos(WIDGET(lv->scrollbar));
ry = y - widget_get_y_pos(WIDGET(lv->scrollbar));
target = widget_find_mouse_target(WIDGET(lv->scrollbar), type, rx, ry);
}
unsigned int max = MIN(lv->cur_elements, lv->req_elements - lv->last_offset);
unsigned int i;
for (i = 0; i < max && target == NULL; i++) {
widget *w = WIDGET(lv->boxes[i].box);
if (widget_intersect(w, x, y)) {
rx = x - widget_get_x_pos(w);
ry = y - widget_get_y_pos(w);
target = widget_find_mouse_target(w, type, rx, ry);
}
}
return target;
}
static WidgetTriggerActionResult
listview_trigger_action(widget *wid, MouseBindingListviewAction action,
G_GNUC_UNUSED gint x, G_GNUC_UNUSED gint y,
G_GNUC_UNUSED void *user_data) {
listview *lv = (listview *)wid;
switch (action) {
case SCROLL_LEFT:
listview_nav_left(lv);
break;
case SCROLL_RIGHT:
listview_nav_right(lv);
break;
case SCROLL_DOWN:
listview_nav_down(lv);
break;
case SCROLL_UP:
listview_nav_up(lv);
break;
}
return WIDGET_TRIGGER_ACTION_RESULT_HANDLED;
}
static WidgetTriggerActionResult listview_element_trigger_action(
widget *wid, MouseBindingListviewElementAction action, G_GNUC_UNUSED gint x,
G_GNUC_UNUSED gint y, void *user_data) {
listview *lv = (listview *)user_data;
unsigned int max = MIN(lv->cur_elements, lv->req_elements - lv->last_offset);
unsigned int i;
for (i = 0; i < max && WIDGET(lv->boxes[i].box) != wid; i++) {
}
if (i == max) {
return WIDGET_TRIGGER_ACTION_RESULT_IGNORED;
}
gboolean custom = FALSE;
switch (action) {
case SELECT_HOVERED_ENTRY:
listview_set_selected(lv, lv->last_offset + i);
break;
case ACCEPT_HOVERED_CUSTOM:
custom = TRUE;
/* FALLTHRU */
case ACCEPT_HOVERED_ENTRY:
listview_set_selected(lv, lv->last_offset + i);
lv->mouse_activated(lv, custom, lv->mouse_activated_data);
break;
}
return WIDGET_TRIGGER_ACTION_RESULT_HANDLED;
}
static gboolean listview_element_motion_notify(widget *wid,
G_GNUC_UNUSED gint x,
G_GNUC_UNUSED gint y) {
listview *lv = (listview *)wid->parent;
unsigned int max = MIN(lv->cur_elements, lv->req_elements - lv->last_offset);
unsigned int i;
for (i = 0; i < max && WIDGET(lv->boxes[i].box) != wid; i++) {
}
if (i < max && (lv->last_offset + i) != listview_get_selected(lv)) {
listview_set_selected(lv, lv->last_offset + i);
}
return TRUE;
}
listview *listview_create(widget *parent, const char *name,
listview_update_callback cb, void *udata,
unsigned int eh, gboolean reverse) {
listview *lv = g_malloc0(sizeof(listview));
widget_init(WIDGET(lv), parent, WIDGET_TYPE_LISTVIEW, name);
lv->listview_name = g_strdup(name);
lv->widget.free = listview_free;
lv->widget.resize = listview_resize;
lv->widget.draw = _listview_draw;
lv->widget.find_mouse_target = listview_find_mouse_target;
lv->widget.trigger_action = listview_trigger_action;
lv->widget.get_desired_height = listview_get_desired_height;
lv->eh = eh;
lv->emode = PANGO_ELLIPSIZE_END;
lv->scrollbar = scrollbar_create(WIDGET(lv), "scrollbar");
// Calculate height of an element.
//
_listview_row row;
listview_create_row(lv, &row);
// FIXME: hack to scale hight correctly.
if (lv->eh > 1 && row.textbox) {
char buff[lv->eh * 2 + 1];
memset(buff, '\0', lv->eh * 2 + 1);
for (unsigned int i = 0; i < (lv->eh - 1); i++) {
buff[i * 2] = 'a';
buff[i * 2 + 1] = '\n';
};
textbox_text(row.textbox, buff);
}
// Make textbox very wide.
lv->element_height = widget_get_desired_height(WIDGET(row.box), 100000);
widget_free(WIDGET(row.box));
lv->callback = cb;
lv->udata = udata;
// Some settings.
lv->spacing = rofi_theme_get_distance(WIDGET(lv), "spacing", DEFAULT_SPACING);
lv->menu_columns =
rofi_theme_get_integer(WIDGET(lv), "columns", DEFAULT_MENU_COLUMNS);
lv->fixed_num_lines = rofi_theme_get_boolean(WIDGET(lv), "fixed-height",
config.fixed_num_lines);
lv->dynamic = rofi_theme_get_boolean(WIDGET(lv), "dynamic", TRUE);
lv->reverse = rofi_theme_get_boolean(WIDGET(lv), "reverse", reverse);
lv->cycle = rofi_theme_get_boolean(WIDGET(lv), "cycle", config.cycle);
lv->fixed_columns =
rofi_theme_get_boolean(WIDGET(lv), "fixed-columns", FALSE);
lv->type = rofi_theme_get_orientation(WIDGET(lv), "layout",
ROFI_ORIENTATION_VERTICAL);
if (lv->type == LISTVIEW) {
listview_set_show_scrollbar(
lv, rofi_theme_get_boolean(WIDGET(lv), "scrollbar", FALSE));
} else {
listview_set_show_scrollbar(lv, FALSE);
}
return lv;
}
/**
* Navigation commands.
*/
static void listview_nav_up_int(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->req_elements == 0 || (lv->selected == 0 && !lv->cycle)) {
return;
}
if (lv->selected == 0) {
lv->selected = lv->req_elements;
}
lv->selected--;
lv->barview.direction = RIGHT_TO_LEFT;
widget_queue_redraw(WIDGET(lv));
}
static void listview_nav_down_int(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->req_elements == 0 ||
(lv->selected == (lv->req_elements - 1) && !lv->cycle)) {
return;
}
lv->selected = lv->selected < lv->req_elements - 1
? MIN(lv->req_elements - 1, lv->selected + 1)
: 0;
lv->barview.direction = LEFT_TO_RIGHT;
widget_queue_redraw(WIDGET(lv));
}
void listview_nav_up(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->reverse) {
listview_nav_down_int(lv);
} else {
listview_nav_up_int(lv);
}
}
void listview_nav_down(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->reverse) {
listview_nav_up_int(lv);
} else {
listview_nav_down_int(lv);
}
}
void listview_nav_left(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->type == BARVIEW) {
listview_nav_up_int(lv);
return;
}
if (lv->selected >= lv->max_rows) {
lv->selected -= lv->max_rows;
widget_queue_redraw(WIDGET(lv));
}
}
void listview_nav_right(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->max_rows == 0) {
return;
}
if (lv->type == BARVIEW) {
listview_nav_down_int(lv);
return;
}
if ((lv->selected + lv->max_rows) < lv->req_elements) {
lv->selected += lv->max_rows;
widget_queue_redraw(WIDGET(lv));
} else if (lv->selected < (lv->req_elements - 1)) {
// We do not want to move to last item, UNLESS the last column is only
// partially filled, then we still want to move column and select last
// entry. First check the column we are currently in.
int col = lv->selected / lv->max_rows;
// Check total number of columns.
int ncol = lv->req_elements / lv->max_rows;
// If there is an extra column, move.
if (col != ncol) {
lv->selected = lv->req_elements - 1;
widget_queue_redraw(WIDGET(lv));
}
}
}
static void listview_nav_page_prev_int(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->type == BARVIEW) {
if (lv->last_offset == 0) {
lv->selected = 0;
} else {
lv->selected = lv->last_offset - 1;
}
lv->barview.direction = RIGHT_TO_LEFT;
widget_queue_redraw(WIDGET(lv));
return;
}
if (lv->selected < lv->max_elements) {
lv->selected = 0;
} else {
lv->selected -= (lv->max_elements);
}
widget_queue_redraw(WIDGET(lv));
}
static void listview_nav_page_next_int(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->req_elements == 0) {
return;
}
if (lv->type == BARVIEW) {
unsigned int new = lv->last_offset + lv->barview.cur_visible;
lv->selected = MIN(new, lv->req_elements - 1);
lv->barview.direction = LEFT_TO_RIGHT;
widget_queue_redraw(WIDGET(lv));
return;
}
lv->selected += (lv->max_elements);
if (lv->selected >= lv->req_elements) {
lv->selected = lv->req_elements - 1;
}
widget_queue_redraw(WIDGET(lv));
}
void listview_nav_page_prev(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->reverse) {
listview_nav_page_next_int(lv);
} else {
listview_nav_page_prev_int(lv);
}
}
void listview_nav_page_next(listview *lv) {
if (lv == NULL) {
return;
}
if (lv->reverse) {
listview_nav_page_prev_int(lv);
} else {
listview_nav_page_next_int(lv);
}
}
static int listview_get_desired_height(widget *wid,
G_GNUC_UNUSED const int width) {
listview *lv = (listview *)wid;
if (lv == NULL || lv->widget.enabled == FALSE) {
return 0;
}
int spacing = distance_get_pixel(lv->spacing, ROFI_ORIENTATION_VERTICAL);
int h = lv->menu_lines;
if (!(lv->fixed_num_lines)) {
if (lv->dynamic) {
h = MIN(lv->menu_lines, lv->req_elements);
} else {
h = MIN(lv->menu_lines, lv->max_displayed_lines);
}
}
if (lv->type == BARVIEW) {
h = MIN(h, 1);
}
if (h == 0) {
if (lv->dynamic && !lv->fixed_num_lines) {
// Hide widget fully.
return 0;
}
return widget_padding_get_padding_height(WIDGET(lv));
}
int height = widget_padding_get_padding_height(WIDGET(lv));
height += h * (lv->element_height + spacing) - spacing;
return height;
}
void listview_set_show_scrollbar(listview *lv, gboolean enabled) {
if (lv) {
if (enabled) {
widget_enable(WIDGET(lv->scrollbar));
} else {
widget_disable(WIDGET(lv->scrollbar));
}
listview_recompute_elements(lv);
}
}
void listview_set_scroll_type(listview *lv, ScrollType type) {
if (lv) {
lv->scroll_type = type;
}
}
void listview_set_mouse_activated_cb(listview *lv,
listview_mouse_activated_cb cb,
void *udata) {
if (lv) {
lv->mouse_activated = cb;
lv->mouse_activated_data = udata;
}
}
void listview_set_multi_select(listview *lv, gboolean enable) {
if (lv) {
lv->multi_select = enable;
}
}
void listview_set_num_lines(listview *lv, unsigned int num_lines) {
if (lv) {
lv->menu_lines = num_lines;
}
}
void listview_set_max_lines(listview *lv, unsigned int max_lines) {
if (lv) {
lv->max_displayed_lines = max_lines;
}
}
gboolean listview_get_fixed_num_lines(listview *lv) {
if (lv) {
return lv->fixed_num_lines;
}
return FALSE;
}
void listview_set_fixed_num_lines(listview *lv) {
if (lv) {
lv->fixed_num_lines = TRUE;
}
}
void listview_set_ellipsize_start(listview *lv) {
if (lv) {
lv->emode = PANGO_ELLIPSIZE_START;
for (unsigned int i = 0; i < lv->cur_elements; i++) {
textbox_set_ellipsize(lv->boxes[i].textbox, lv->emode);
}
}
}
void listview_toggle_ellipsizing(listview *lv) {
if (lv) {
PangoEllipsizeMode mode = lv->emode;
if (mode == PANGO_ELLIPSIZE_START) {
mode = PANGO_ELLIPSIZE_MIDDLE;
} else if (mode == PANGO_ELLIPSIZE_MIDDLE) {
mode = PANGO_ELLIPSIZE_END;
} else if (mode == PANGO_ELLIPSIZE_END) {
mode = PANGO_ELLIPSIZE_START;
}
lv->emode = mode;
for (unsigned int i = 0; i < lv->cur_elements; i++) {
textbox_set_ellipsize(lv->boxes[i].textbox, mode);
}
}
}
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