/* gtkemojichooser.c: An Emoji chooser widget * Copyright 2017, Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . */ #include "config.h" #include "gtkemojichooser.h" #include "gtkadjustmentprivate.h" #include "gtkbox.h" #include "gtkbutton.h" #include "gtkcssprovider.h" #include "gtkentry.h" #include "gtkflowboxprivate.h" #include "gtkstack.h" #include "gtklabel.h" #include "gtkgesturelongpress.h" #include "gtkpopover.h" #include "gtkscrolledwindow.h" #include "gtkintl.h" #include "gtkprivate.h" #include "gtksearchentryprivate.h" #include "gtktext.h" #include "gtknative.h" #include "gtkwidgetprivate.h" #include "gdk/gdkprofilerprivate.h" #include "gtkmain.h" #include "gtkprivate.h" /** * SECTION:gtkemojichooser * @Title: GtkEmojiChooser * @Short_description: A popover to choose an Emoji character * * The #GtkEmojiChooser popover is used by text widgets such as #GtkEntry or * #GtkTextView to offer users a convenient way to insert Emoji characters. * * GtkEmojiChooser emits the #GtkEmojiChooser::emoji-picked signal when an * Emoji is selected. * * # CSS nodes * |[ * popover * ├── box.emoji-searchbar * │ ╰── entry.search * ╰── box.emoji-toolbar * ├── button.image-button.emoji-section * ├── ... * ╰── button.image-button.emoji-section * ]| * * Every #GtkEmojiChooser consists of a main node called popover. * The contents of the popover are largely implementation defined * and supposed to inherit general styles. * The top searchbar used to search emoji and gets the .emoji-searchbar * style class itself. * The bottom toolbar used to switch between different emoji categories * consists of buttons with the .emoji-section style class and gets the * .emoji-toolbar style class itself. * */ #define BOX_SPACE 6 GType gtk_emoji_chooser_child_get_type (void); #define GTK_TYPE_EMOJI_CHOOSER_CHILD (gtk_emoji_chooser_child_get_type ()) typedef struct { GtkFlowBoxChild parent; GtkWidget *variations; } GtkEmojiChooserChild; typedef struct { GtkFlowBoxChildClass parent_class; } GtkEmojiChooserChildClass; G_DEFINE_TYPE (GtkEmojiChooserChild, gtk_emoji_chooser_child, GTK_TYPE_FLOW_BOX_CHILD) static void gtk_emoji_chooser_child_init (GtkEmojiChooserChild *child) { } static void gtk_emoji_chooser_child_dispose (GObject *object) { GtkEmojiChooserChild *child = (GtkEmojiChooserChild *)object; g_clear_pointer (&child->variations, gtk_widget_unparent); G_OBJECT_CLASS (gtk_emoji_chooser_child_parent_class)->dispose (object); } static void gtk_emoji_chooser_child_size_allocate (GtkWidget *widget, int width, int height, int baseline) { GtkEmojiChooserChild *child = (GtkEmojiChooserChild *)widget; GTK_WIDGET_CLASS (gtk_emoji_chooser_child_parent_class)->size_allocate (widget, width, height, baseline); if (child->variations) gtk_popover_present (GTK_POPOVER (child->variations)); } static gboolean gtk_emoji_chooser_child_focus (GtkWidget *widget, GtkDirectionType direction) { GtkEmojiChooserChild *child = (GtkEmojiChooserChild *)widget; if (child->variations && gtk_widget_is_visible (child->variations)) { if (gtk_widget_child_focus (child->variations, direction)) return TRUE; } return GTK_WIDGET_CLASS (gtk_emoji_chooser_child_parent_class)->focus (widget, direction); } static void scroll_to_child (GtkWidget *child); static gboolean gtk_emoji_chooser_child_grab_focus (GtkWidget *widget) { gtk_widget_grab_focus_self (widget); scroll_to_child (widget); return TRUE; } static void show_variations (GtkEmojiChooser *chooser, GtkWidget *child); static void gtk_emoji_chooser_child_popup_menu (GtkWidget *widget, const char *action_name, GVariant *parameters) { GtkWidget *chooser; chooser = gtk_widget_get_ancestor (widget, GTK_TYPE_EMOJI_CHOOSER); show_variations (GTK_EMOJI_CHOOSER (chooser), widget); } static void gtk_emoji_chooser_child_class_init (GtkEmojiChooserChildClass *class) { GObjectClass *object_class = G_OBJECT_CLASS (class); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); object_class->dispose = gtk_emoji_chooser_child_dispose; widget_class->size_allocate = gtk_emoji_chooser_child_size_allocate; widget_class->focus = gtk_emoji_chooser_child_focus; widget_class->grab_focus = gtk_emoji_chooser_child_grab_focus; gtk_widget_class_install_action (widget_class, "menu.popup", NULL, gtk_emoji_chooser_child_popup_menu); gtk_widget_class_add_binding_action (widget_class, GDK_KEY_F10, GDK_SHIFT_MASK, "menu.popup", NULL); gtk_widget_class_add_binding_action (widget_class, GDK_KEY_Menu, 0, "menu.popup", NULL); gtk_widget_class_set_css_name (widget_class, "emoji"); } typedef struct { GtkWidget *box; GtkWidget *heading; GtkWidget *button; int group; gunichar label; gboolean empty; } EmojiSection; struct _GtkEmojiChooser { GtkPopover parent_instance; GtkWidget *search_entry; GtkWidget *stack; GtkWidget *scrolled_window; int emoji_max_width; EmojiSection recent; EmojiSection people; EmojiSection body; EmojiSection nature; EmojiSection food; EmojiSection travel; EmojiSection activities; EmojiSection objects; EmojiSection symbols; EmojiSection flags; GVariant *data; GtkWidget *box; GVariantIter *iter; guint populate_idle; GSettings *settings; }; struct _GtkEmojiChooserClass { GtkPopoverClass parent_class; }; enum { EMOJI_PICKED, LAST_SIGNAL }; static int signals[LAST_SIGNAL]; G_DEFINE_TYPE (GtkEmojiChooser, gtk_emoji_chooser, GTK_TYPE_POPOVER) static void gtk_emoji_chooser_finalize (GObject *object) { GtkEmojiChooser *chooser = GTK_EMOJI_CHOOSER (object); if (chooser->populate_idle) g_source_remove (chooser->populate_idle); g_clear_pointer (&chooser->data, g_variant_unref); g_clear_object (&chooser->settings); G_OBJECT_CLASS (gtk_emoji_chooser_parent_class)->finalize (object); } static void scroll_to_section (EmojiSection *section) { GtkEmojiChooser *chooser; GtkAdjustment *adj; GtkAllocation alloc = { 0, 0, 0, 0 }; chooser = GTK_EMOJI_CHOOSER (gtk_widget_get_ancestor (section->box, GTK_TYPE_EMOJI_CHOOSER)); adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (chooser->scrolled_window)); if (section->heading) gtk_widget_get_allocation (section->heading, &alloc); gtk_adjustment_animate_to_value (adj, alloc.y - BOX_SPACE); } static void scroll_to_child (GtkWidget *child) { GtkEmojiChooser *chooser; GtkAdjustment *adj; GtkAllocation alloc; double pos; double value; double page_size; chooser = GTK_EMOJI_CHOOSER (gtk_widget_get_ancestor (child, GTK_TYPE_EMOJI_CHOOSER)); adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (chooser->scrolled_window)); gtk_widget_get_allocation (child, &alloc); value = gtk_adjustment_get_value (adj); page_size = gtk_adjustment_get_page_size (adj); gtk_widget_translate_coordinates (child, gtk_widget_get_parent (chooser->recent.box), 0, 0, NULL, &pos); if (pos < value) gtk_adjustment_animate_to_value (adj, pos); else if (pos + alloc.height >= value + page_size) gtk_adjustment_animate_to_value (adj, value + ((pos + alloc.height) - (value + page_size))); } static void add_emoji (GtkWidget *box, gboolean prepend, GVariant *item, gunichar modifier, GtkEmojiChooser *chooser); #define MAX_RECENT (7*3) static void populate_recent_section (GtkEmojiChooser *chooser) { GVariant *variant; GVariant *item; GVariantIter iter; gboolean empty = FALSE; variant = g_settings_get_value (chooser->settings, "recent-emoji"); g_variant_iter_init (&iter, variant); while ((item = g_variant_iter_next_value (&iter))) { GVariant *emoji_data; gunichar modifier; emoji_data = g_variant_get_child_value (item, 0); g_variant_get_child (item, 1, "u", &modifier); add_emoji (chooser->recent.box, FALSE, emoji_data, modifier, chooser); g_variant_unref (emoji_data); g_variant_unref (item); empty = FALSE; } gtk_widget_set_visible (chooser->recent.box, !empty); gtk_widget_set_sensitive (chooser->recent.button, !empty); g_variant_unref (variant); } static void add_recent_item (GtkEmojiChooser *chooser, GVariant *item, gunichar modifier) { GList *children, *l; int i; GVariantBuilder builder; GtkWidget *child; g_variant_ref (item); g_variant_builder_init (&builder, G_VARIANT_TYPE ("a((ausasu)u)")); g_variant_builder_add (&builder, "(@(ausasu)u)", item, modifier); children = NULL; for (child = gtk_widget_get_last_child (chooser->recent.box); child != NULL; child = gtk_widget_get_prev_sibling (child)) children = g_list_prepend (children, child); for (l = children, i = 1; l; l = l->next, i++) { GVariant *item2 = g_object_get_data (G_OBJECT (l->data), "emoji-data"); gunichar modifier2 = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (l->data), "modifier")); if (modifier == modifier2 && g_variant_equal (item, item2)) { gtk_flow_box_remove (GTK_FLOW_BOX (chooser->recent.box), l->data); i--; continue; } if (i >= MAX_RECENT) { gtk_flow_box_remove (GTK_FLOW_BOX (chooser->recent.box), l->data); continue; } g_variant_builder_add (&builder, "(@(ausasu)u)", item2, modifier2); } g_list_free (children); add_emoji (chooser->recent.box, TRUE, item, modifier, chooser); /* Enable recent */ gtk_widget_show (chooser->recent.box); gtk_widget_set_sensitive (chooser->recent.button, TRUE); g_settings_set_value (chooser->settings, "recent-emoji", g_variant_builder_end (&builder)); g_variant_unref (item); } static gboolean should_close (GtkEmojiChooser *chooser) { GdkDisplay *display; GdkSeat *seat; GdkDevice *device; GdkModifierType state; display = gtk_widget_get_display (GTK_WIDGET (chooser)); seat = gdk_display_get_default_seat (display); device = gdk_seat_get_keyboard (seat); state = gdk_device_get_modifier_state (device); return (state & GDK_CONTROL_MASK) == 0; } static void emoji_activated (GtkFlowBox *box, GtkFlowBoxChild *child, gpointer data) { GtkEmojiChooser *chooser = data; char *text; GtkWidget *label; GVariant *item; gunichar modifier; if (should_close (chooser)) gtk_popover_popdown (GTK_POPOVER (chooser)); else { GtkWidget *popover; popover = gtk_widget_get_ancestor (GTK_WIDGET (box), GTK_TYPE_POPOVER); if (popover != GTK_WIDGET (chooser)) gtk_popover_popdown (GTK_POPOVER (popover)); } label = gtk_flow_box_child_get_child (child); text = g_strdup (gtk_label_get_label (GTK_LABEL (label))); item = (GVariant*) g_object_get_data (G_OBJECT (child), "emoji-data"); modifier = (gunichar) GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (child), "modifier")); add_recent_item (chooser, item, modifier); g_signal_emit (data, signals[EMOJI_PICKED], 0, text); g_free (text); } static gboolean has_variations (GVariant *emoji_data) { GVariant *codes; int i; gboolean has_variations; has_variations = FALSE; codes = g_variant_get_child_value (emoji_data, 0); for (i = 0; i < g_variant_n_children (codes); i++) { gunichar code; g_variant_get_child (codes, i, "u", &code); if (code == 0) { has_variations = TRUE; break; } } g_variant_unref (codes); return has_variations; } static void show_variations (GtkEmojiChooser *chooser, GtkWidget *child) { GtkWidget *popover; GtkWidget *view; GtkWidget *box; GVariant *emoji_data; GtkWidget *parent_popover; gunichar modifier; GtkEmojiChooserChild *ch = (GtkEmojiChooserChild *)child; if (!child) return; emoji_data = (GVariant*) g_object_get_data (G_OBJECT (child), "emoji-data"); if (!emoji_data) return; if (!has_variations (emoji_data)) return; parent_popover = gtk_widget_get_ancestor (child, GTK_TYPE_POPOVER); g_clear_pointer (&ch->variations, gtk_widget_unparent); popover = ch->variations = gtk_popover_new (); gtk_popover_set_autohide (GTK_POPOVER (popover), TRUE); gtk_widget_set_parent (popover, child); view = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0); gtk_widget_add_css_class (view, "view"); box = gtk_flow_box_new (); gtk_flow_box_set_homogeneous (GTK_FLOW_BOX (box), TRUE); gtk_flow_box_set_min_children_per_line (GTK_FLOW_BOX (box), 6); gtk_flow_box_set_max_children_per_line (GTK_FLOW_BOX (box), 6); gtk_flow_box_set_activate_on_single_click (GTK_FLOW_BOX (box), TRUE); gtk_flow_box_set_selection_mode (GTK_FLOW_BOX (box), GTK_SELECTION_NONE); g_object_set (box, "accept-unpaired-release", TRUE, NULL); gtk_popover_set_child (GTK_POPOVER (popover), view); gtk_box_append (GTK_BOX (view), box); g_signal_connect (box, "child-activated", G_CALLBACK (emoji_activated), parent_popover); add_emoji (box, FALSE, emoji_data, 0, chooser); for (modifier = 0x1f3fb; modifier <= 0x1f3ff; modifier++) add_emoji (box, FALSE, emoji_data, modifier, chooser); gtk_popover_popup (GTK_POPOVER (popover)); } static void long_pressed_cb (GtkGesture *gesture, double x, double y, gpointer data) { GtkEmojiChooser *chooser = data; GtkWidget *box; GtkWidget *child; box = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)); child = GTK_WIDGET (gtk_flow_box_get_child_at_pos (GTK_FLOW_BOX (box), x, y)); show_variations (chooser, child); } static void pressed_cb (GtkGesture *gesture, int n_press, double x, double y, gpointer data) { GtkEmojiChooser *chooser = data; GtkWidget *box; GtkWidget *child; box = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)); child = GTK_WIDGET (gtk_flow_box_get_child_at_pos (GTK_FLOW_BOX (box), x, y)); show_variations (chooser, child); } static void add_emoji (GtkWidget *box, gboolean prepend, GVariant *item, gunichar modifier, GtkEmojiChooser *chooser) { GtkWidget *child; GtkWidget *label; PangoAttrList *attrs; GVariant *codes; char text[64]; char *p = text; int i; PangoLayout *layout; PangoRectangle rect; codes = g_variant_get_child_value (item, 0); for (i = 0; i < g_variant_n_children (codes); i++) { gunichar code; g_variant_get_child (codes, i, "u", &code); if (code == 0) code = modifier; if (code != 0) p += g_unichar_to_utf8 (code, p); } g_variant_unref (codes); p += g_unichar_to_utf8 (0xFE0F, p); /* U+FE0F is the Emoji variation selector */ p[0] = 0; label = gtk_label_new (text); attrs = pango_attr_list_new (); pango_attr_list_insert (attrs, pango_attr_scale_new (PANGO_SCALE_X_LARGE)); gtk_label_set_attributes (GTK_LABEL (label), attrs); pango_attr_list_unref (attrs); layout = gtk_label_get_layout (GTK_LABEL (label)); pango_layout_get_extents (layout, &rect, NULL); /* Check for fallback rendering that generates too wide items */ if (pango_layout_get_unknown_glyphs_count (layout) > 0 || rect.width >= 1.5 * chooser->emoji_max_width) { g_object_ref_sink (label); g_object_unref (label); return; } child = g_object_new (GTK_TYPE_EMOJI_CHOOSER_CHILD, NULL); g_object_set_data_full (G_OBJECT (child), "emoji-data", g_variant_ref (item), (GDestroyNotify)g_variant_unref); if (modifier != 0) g_object_set_data (G_OBJECT (child), "modifier", GUINT_TO_POINTER (modifier)); gtk_flow_box_child_set_child (GTK_FLOW_BOX_CHILD (child), label); gtk_flow_box_insert (GTK_FLOW_BOX (box), child, prepend ? 0 : -1); } GBytes * get_emoji_data (void) { GBytes *bytes; const char *lang; char q[10]; char *path; GError *error = NULL; lang = pango_language_to_string (gtk_get_default_language ()); if (strchr (lang, '-')) { int i; for (i = 0; lang[i] != '-' && i < 9; i++) q[i] = lang[i]; q[i] = '\0'; lang = q; } path = g_strconcat ("/org/gtk/libgtk/emoji/", lang, ".data", NULL); bytes = g_resources_lookup_data (path, 0, &error); if (bytes) { g_debug ("Found emoji data for %s in resource %s", lang, path); g_free (path); return bytes; } if (g_error_matches (error, G_RESOURCE_ERROR, G_RESOURCE_ERROR_NOT_FOUND)) { char *filename; GMappedFile *file; g_clear_error (&error); filename = g_strconcat ("/usr/share/gtk-4.0/emoji/", lang, ".gresource", NULL); file = g_mapped_file_new (filename, FALSE, NULL); if (file) { GBytes *data; GResource *resource; data = g_mapped_file_get_bytes (file); g_mapped_file_unref (file); resource = g_resource_new_from_data (data, NULL); g_bytes_unref (data); g_debug ("Registering resource for Emoji data for %s from file %s", lang, filename); g_resources_register (resource); g_resource_unref (resource); bytes = g_resources_lookup_data (path, 0, NULL); if (bytes) { g_debug ("Found emoji data for %s in resource %s", lang, path); g_free (path); g_free (filename); return bytes; } } g_free (filename); } g_clear_error (&error); g_free (path); return g_resources_lookup_data ("/org/gtk/libgtk/emoji/en.data", 0, NULL); } static gboolean populate_emoji_chooser (gpointer data) { GtkEmojiChooser *chooser = data; GVariant *item; gint64 start, now; start = g_get_monotonic_time (); if (!chooser->data) { GBytes *bytes; bytes = get_emoji_data (); chooser->data = g_variant_ref_sink (g_variant_new_from_bytes (G_VARIANT_TYPE ("a(ausasu)"), bytes, TRUE)); g_bytes_unref (bytes); } if (!chooser->iter) { chooser->iter = g_variant_iter_new (chooser->data); chooser->box = chooser->people.box; } while ((item = g_variant_iter_next_value (chooser->iter))) { guint group; g_variant_get_child (item, 3, "u", &group); if (group == chooser->people.group) chooser->box = chooser->people.box; else if (group == chooser->body.group) chooser->box = chooser->body.box; else if (group == chooser->nature.group) chooser->box = chooser->nature.box; else if (group == chooser->food.group) chooser->box = chooser->food.box; else if (group == chooser->travel.group) chooser->box = chooser->travel.box; else if (group == chooser->activities.group) chooser->box = chooser->activities.box; else if (group == chooser->objects.group) chooser->box = chooser->objects.box; else if (group == chooser->symbols.group) chooser->box = chooser->symbols.box; else if (group == chooser->flags.group) chooser->box = chooser->flags.box; add_emoji (chooser->box, FALSE, item, 0, chooser); g_variant_unref (item); now = g_get_monotonic_time (); if (now > start + 200) /* 2 ms */ { gdk_profiler_add_mark (start * 1000, (now - start) * 1000, "emojichooser", "populate"); return G_SOURCE_CONTINUE; } } g_variant_iter_free (chooser->iter); chooser->iter = NULL; chooser->box = NULL; chooser->populate_idle = 0; gdk_profiler_end_mark (start, "emojichooser", "populate (finish)"); return G_SOURCE_REMOVE; } static void adj_value_changed (GtkAdjustment *adj, gpointer data) { GtkEmojiChooser *chooser = data; double value = gtk_adjustment_get_value (adj); EmojiSection const *sections[] = { &chooser->recent, &chooser->people, &chooser->body, &chooser->nature, &chooser->food, &chooser->travel, &chooser->activities, &chooser->objects, &chooser->symbols, &chooser->flags, }; EmojiSection const *select_section = sections[0]; gsize i; /* Figure out which section the current scroll position is within */ for (i = 0; i < G_N_ELEMENTS (sections); ++i) { EmojiSection const *section = sections[i]; GtkAllocation alloc; if (!gtk_widget_get_visible (section->box)) continue; if (section->heading) gtk_widget_get_allocation (section->heading, &alloc); else gtk_widget_get_allocation (section->box, &alloc); if (value < alloc.y - BOX_SPACE) break; select_section = section; } /* Un/Check the section buttons accordingly */ for (i = 0; i < G_N_ELEMENTS (sections); ++i) { EmojiSection const *section = sections[i]; if (section == select_section) gtk_widget_set_state_flags (section->button, GTK_STATE_FLAG_CHECKED, FALSE); else gtk_widget_unset_state_flags (section->button, GTK_STATE_FLAG_CHECKED); } } static gboolean match_tokens (const char **term_tokens, const char **hit_tokens) { int i, j; gboolean matched; matched = TRUE; for (i = 0; term_tokens[i]; i++) { for (j = 0; hit_tokens[j]; j++) if (g_str_has_prefix (hit_tokens[j], term_tokens[i])) goto one_matched; matched = FALSE; break; one_matched: continue; } return matched; } static gboolean filter_func (GtkFlowBoxChild *child, gpointer data) { EmojiSection *section = data; GtkEmojiChooser *chooser; GVariant *emoji_data; const char *text; const char *name; const char **keywords; char **term_tokens; char **name_tokens; gboolean res; res = TRUE; chooser = GTK_EMOJI_CHOOSER (gtk_widget_get_ancestor (GTK_WIDGET (child), GTK_TYPE_EMOJI_CHOOSER)); text = gtk_editable_get_text (GTK_EDITABLE (chooser->search_entry)); emoji_data = (GVariant *) g_object_get_data (G_OBJECT (child), "emoji-data"); if (text[0] == 0) goto out; if (!emoji_data) goto out; term_tokens = g_str_tokenize_and_fold (text, "en", NULL); g_variant_get_child (emoji_data, 1, "&s", &name); name_tokens = g_str_tokenize_and_fold (name, "en", NULL); g_variant_get_child (emoji_data, 2, "^a&s", &keywords); res = match_tokens ((const char **)term_tokens, (const char **)name_tokens) || match_tokens ((const char **)term_tokens, keywords); g_strfreev (term_tokens); g_strfreev (name_tokens); out: if (res) section->empty = FALSE; return res; } static void invalidate_section (EmojiSection *section) { section->empty = TRUE; gtk_flow_box_invalidate_filter (GTK_FLOW_BOX (section->box)); } static void update_headings (GtkEmojiChooser *chooser) { gtk_widget_set_visible (chooser->people.heading, !chooser->people.empty); gtk_widget_set_visible (chooser->people.box, !chooser->people.empty); gtk_widget_set_visible (chooser->body.heading, !chooser->body.empty); gtk_widget_set_visible (chooser->body.box, !chooser->body.empty); gtk_widget_set_visible (chooser->nature.heading, !chooser->nature.empty); gtk_widget_set_visible (chooser->nature.box, !chooser->nature.empty); gtk_widget_set_visible (chooser->food.heading, !chooser->food.empty); gtk_widget_set_visible (chooser->food.box, !chooser->food.empty); gtk_widget_set_visible (chooser->travel.heading, !chooser->travel.empty); gtk_widget_set_visible (chooser->travel.box, !chooser->travel.empty); gtk_widget_set_visible (chooser->activities.heading, !chooser->activities.empty); gtk_widget_set_visible (chooser->activities.box, !chooser->activities.empty); gtk_widget_set_visible (chooser->objects.heading, !chooser->objects.empty); gtk_widget_set_visible (chooser->objects.box, !chooser->objects.empty); gtk_widget_set_visible (chooser->symbols.heading, !chooser->symbols.empty); gtk_widget_set_visible (chooser->symbols.box, !chooser->symbols.empty); gtk_widget_set_visible (chooser->flags.heading, !chooser->flags.empty); gtk_widget_set_visible (chooser->flags.box, !chooser->flags.empty); if (chooser->recent.empty && chooser->people.empty && chooser->body.empty && chooser->nature.empty && chooser->food.empty && chooser->travel.empty && chooser->activities.empty && chooser->objects.empty && chooser->symbols.empty && chooser->flags.empty) gtk_stack_set_visible_child_name (GTK_STACK (chooser->stack), "empty"); else gtk_stack_set_visible_child_name (GTK_STACK (chooser->stack), "list"); } static void search_changed (GtkEntry *entry, gpointer data) { GtkEmojiChooser *chooser = data; invalidate_section (&chooser->recent); invalidate_section (&chooser->people); invalidate_section (&chooser->body); invalidate_section (&chooser->nature); invalidate_section (&chooser->food); invalidate_section (&chooser->travel); invalidate_section (&chooser->activities); invalidate_section (&chooser->objects); invalidate_section (&chooser->symbols); invalidate_section (&chooser->flags); update_headings (chooser); } static void stop_search (GtkEntry *entry, gpointer data) { gtk_popover_popdown (GTK_POPOVER (data)); } static void setup_section (GtkEmojiChooser *chooser, EmojiSection *section, int group, const char *icon) { section->group = group; gtk_button_set_icon_name (GTK_BUTTON (section->button), icon); gtk_flow_box_disable_move_cursor (GTK_FLOW_BOX (section->box)); gtk_flow_box_set_filter_func (GTK_FLOW_BOX (section->box), filter_func, section, NULL); g_signal_connect_swapped (section->button, "clicked", G_CALLBACK (scroll_to_section), section); } static void gtk_emoji_chooser_init (GtkEmojiChooser *chooser) { GtkAdjustment *adj; GtkText *text; chooser->settings = g_settings_new ("org.gtk.gtk4.Settings.EmojiChooser"); gtk_widget_init_template (GTK_WIDGET (chooser)); text = gtk_search_entry_get_text_widget (GTK_SEARCH_ENTRY (chooser->search_entry)); gtk_text_set_input_hints (text, GTK_INPUT_HINT_NO_EMOJI); /* Get a reasonable maximum width for an emoji. We do this to * skip overly wide fallback rendering for certain emojis the * font does not contain and therefore end up being rendered * as multiply glyphs. */ { PangoLayout *layout = gtk_widget_create_pango_layout (GTK_WIDGET (chooser), "🙂"); PangoAttrList *attrs; PangoRectangle rect; attrs = pango_attr_list_new (); pango_attr_list_insert (attrs, pango_attr_scale_new (PANGO_SCALE_X_LARGE)); pango_layout_set_attributes (layout, attrs); pango_attr_list_unref (attrs); pango_layout_get_extents (layout, &rect, NULL); chooser->emoji_max_width = rect.width; g_object_unref (layout); } adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (chooser->scrolled_window)); g_signal_connect (adj, "value-changed", G_CALLBACK (adj_value_changed), chooser); setup_section (chooser, &chooser->recent, -1, "emoji-recent-symbolic"); setup_section (chooser, &chooser->people, 0, "emoji-people-symbolic"); setup_section (chooser, &chooser->body, 1, "emoji-body-symbolic"); setup_section (chooser, &chooser->nature, 3, "emoji-nature-symbolic"); setup_section (chooser, &chooser->food, 4, "emoji-food-symbolic"); setup_section (chooser, &chooser->travel, 5, "emoji-travel-symbolic"); setup_section (chooser, &chooser->activities, 6, "emoji-activities-symbolic"); setup_section (chooser, &chooser->objects, 7, "emoji-objects-symbolic"); setup_section (chooser, &chooser->symbols, 8, "emoji-symbols-symbolic"); setup_section (chooser, &chooser->flags, 9, "emoji-flags-symbolic"); populate_recent_section (chooser); chooser->populate_idle = g_idle_add (populate_emoji_chooser, chooser); g_source_set_name_by_id (chooser->populate_idle, "[gtk] populate_emoji_chooser"); } static void gtk_emoji_chooser_show (GtkWidget *widget) { GtkEmojiChooser *chooser = GTK_EMOJI_CHOOSER (widget); GtkAdjustment *adj; GTK_WIDGET_CLASS (gtk_emoji_chooser_parent_class)->show (widget); adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (chooser->scrolled_window)); gtk_adjustment_set_value (adj, 0); adj_value_changed (adj, chooser); gtk_editable_set_text (GTK_EDITABLE (chooser->search_entry), ""); } static EmojiSection * find_next_section (GtkEmojiChooser *chooser, GtkWidget *box, gboolean down) { EmojiSection *next; if (box == chooser->recent.box) next = down ? &chooser->people : NULL; else if (box == chooser->people.box) next = down ? &chooser->body : &chooser->recent; else if (box == chooser->body.box) next = down ? &chooser->nature : &chooser->people; else if (box == chooser->nature.box) next = down ? &chooser->food : &chooser->body; else if (box == chooser->food.box) next = down ? &chooser->travel : &chooser->nature; else if (box == chooser->travel.box) next = down ? &chooser->activities : &chooser->food; else if (box == chooser->activities.box) next = down ? &chooser->objects : &chooser->travel; else if (box == chooser->objects.box) next = down ? &chooser->symbols : &chooser->activities; else if (box == chooser->symbols.box) next = down ? &chooser->flags : &chooser->objects; else if (box == chooser->flags.box) next = down ? NULL : &chooser->symbols; else next = NULL; return next; } static void gtk_emoji_chooser_scroll_section (GtkWidget *widget, const char *action_name, GVariant *parameter) { GtkEmojiChooser *chooser = GTK_EMOJI_CHOOSER (widget); int direction = g_variant_get_int32 (parameter); GtkWidget *focus; GtkWidget *box; EmojiSection *next; focus = gtk_root_get_focus (gtk_widget_get_root (widget)); if (focus == NULL) return; if (gtk_widget_is_ancestor (focus, chooser->search_entry)) box = chooser->recent.box; else box = gtk_widget_get_ancestor (focus, GTK_TYPE_FLOW_BOX); next = find_next_section (chooser, box, direction > 0); if (next) { gtk_widget_child_focus (next->box, GTK_DIR_TAB_FORWARD); scroll_to_section (next); } } static gboolean keynav_failed (GtkWidget *box, GtkDirectionType direction, GtkEmojiChooser *chooser) { EmojiSection *next; GtkWidget *focus; GtkWidget *child; GtkWidget *sibling; int i; int column; int n_columns = 7; int child_x; focus = gtk_root_get_focus (gtk_widget_get_root (box)); if (focus == NULL) return FALSE; /* determine the number of columns */ child_x = -1; for (i = 0; i < 20; i++) { GtkAllocation alloc; gtk_widget_get_allocation (GTK_WIDGET (gtk_flow_box_get_child_at_index (GTK_FLOW_BOX (box), i)), &alloc); if (alloc.x > child_x) child_x = alloc.x; else { n_columns = i; break; } } child = gtk_widget_get_ancestor (focus, GTK_TYPE_EMOJI_CHOOSER_CHILD); i = 0; for (sibling = gtk_widget_get_first_child (box); sibling != child; sibling = gtk_widget_get_next_sibling (sibling)) i++; column = i % n_columns; if (direction == GTK_DIR_DOWN) { next = find_next_section (chooser, box, TRUE); if (next == NULL) return FALSE; i = 0; for (sibling = gtk_widget_get_first_child (next->box); sibling; sibling = gtk_widget_get_next_sibling (sibling), i++) { if (i == column) { gtk_widget_grab_focus (sibling); return TRUE; } } } else if (direction == GTK_DIR_UP) { next = find_next_section (chooser, box, FALSE); if (next == NULL) return FALSE; i = 0; child = NULL; for (sibling = gtk_widget_get_first_child (next->box); sibling; sibling = gtk_widget_get_next_sibling (sibling), i++) { if ((i % n_columns) == column) child = sibling; } if (child) { gtk_widget_grab_focus (child); return TRUE; } } return FALSE; } static void gtk_emoji_chooser_map (GtkWidget *widget) { GtkEmojiChooser *chooser = GTK_EMOJI_CHOOSER (widget); GTK_WIDGET_CLASS (gtk_emoji_chooser_parent_class)->map (widget); gtk_widget_grab_focus (chooser->search_entry); } static void gtk_emoji_chooser_class_init (GtkEmojiChooserClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); object_class->finalize = gtk_emoji_chooser_finalize; widget_class->show = gtk_emoji_chooser_show; widget_class->map = gtk_emoji_chooser_map; /** * GtkEmojiChooser::emoji-picked: * @chooser: the #GtkEmojiChooser * @text: the Unicode sequence for the picked Emoji, in UTF-8 * * The ::emoji-picked signal is emitted when the user selects an * Emoji. */ signals[EMOJI_PICKED] = g_signal_new ("emoji-picked", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING|G_SIGNAL_TYPE_STATIC_SCOPE); gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkemojichooser.ui"); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, search_entry); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, stack); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, scrolled_window); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, recent.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, recent.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, people.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, people.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, people.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, body.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, body.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, body.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, nature.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, nature.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, nature.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, food.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, food.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, food.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, travel.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, travel.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, travel.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, activities.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, activities.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, activities.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, objects.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, objects.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, objects.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, symbols.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, symbols.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, symbols.button); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, flags.box); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, flags.heading); gtk_widget_class_bind_template_child (widget_class, GtkEmojiChooser, flags.button); gtk_widget_class_bind_template_callback (widget_class, emoji_activated); gtk_widget_class_bind_template_callback (widget_class, search_changed); gtk_widget_class_bind_template_callback (widget_class, stop_search); gtk_widget_class_bind_template_callback (widget_class, pressed_cb); gtk_widget_class_bind_template_callback (widget_class, long_pressed_cb); gtk_widget_class_bind_template_callback (widget_class, keynav_failed); /** * GtkEmojiChooser|scroll.section: * @direction: 1 to scroll forward, -1 to scroll back * * Scrolls to the next or previous section. */ gtk_widget_class_install_action (widget_class, "scroll.section", "i", gtk_emoji_chooser_scroll_section); gtk_widget_class_add_binding_action (widget_class, GDK_KEY_n, GDK_CONTROL_MASK, "scroll.section", "i", 1); gtk_widget_class_add_binding_action (widget_class, GDK_KEY_p, GDK_CONTROL_MASK, "scroll.section", "i", -1); } /** * gtk_emoji_chooser_new: * * Creates a new #GtkEmojiChooser. * * Returns: a new #GtkEmojiChooser */ GtkWidget * gtk_emoji_chooser_new (void) { return GTK_WIDGET (g_object_new (GTK_TYPE_EMOJI_CHOOSER, NULL)); }