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authorMarvin W <git@larma.de>2019-07-14 13:25:34 +0200
committerMarvin W <git@larma.de>2019-07-14 13:25:34 +0200
commite4e97730dbd1eed6d0c558d0fef56822c09a52b1 (patch)
treee7d347dbb330749bca25ef0ec1be6db4ad36663c /main/src
parent1654ee60d6bede0ba77afc02c4c825c686e13361 (diff)
downloaddino-e4e97730dbd1eed6d0c558d0fef56822c09a52b1.tar.gz
dino-e4e97730dbd1eed6d0c558d0fef56822c09a52b1.zip
Add EmojiChooser (derived from GTK source)
Diffstat (limited to 'main/src')
-rw-r--r--main/src/emojichooser.c820
-rw-r--r--main/src/emojichooser.h36
2 files changed, 856 insertions, 0 deletions
diff --git a/main/src/emojichooser.c b/main/src/emojichooser.c
new file mode 100644
index 00000000..f8c0c51c
--- /dev/null
+++ b/main/src/emojichooser.c
@@ -0,0 +1,820 @@
+/* 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "emojichooser.h"
+
+#define BOX_SPACE 6
+
+typedef struct {
+ GtkWidget *box;
+ GtkWidget *heading;
+ GtkWidget *button;
+ const char *first;
+ gunichar label;
+ gboolean empty;
+} EmojiSection;
+
+struct _DinoEmojiChooser
+{
+ 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;
+
+ GtkGesture *recent_long_press;
+ GtkGesture *recent_multi_press;
+ GtkGesture *people_long_press;
+ GtkGesture *people_multi_press;
+ GtkGesture *body_long_press;
+ GtkGesture *body_multi_press;
+
+ GVariant *data;
+ GtkWidget *box;
+ GVariantIter *iter;
+ guint populate_idle;
+
+ GSettings *settings;
+};
+
+struct _DinoEmojiChooserClass {
+ GtkPopoverClass parent_class;
+ gboolean (* popover_button_release_event) (GtkWidget *widget,
+ GdkEventButton *event);
+};
+
+enum {
+ EMOJI_PICKED,
+ LAST_SIGNAL
+};
+
+static int signals[LAST_SIGNAL];
+
+G_DEFINE_TYPE (DinoEmojiChooser, dino_emoji_chooser, GTK_TYPE_POPOVER)
+
+static void
+dino_emoji_chooser_finalize (GObject *object)
+{
+ DinoEmojiChooser *chooser = DINO_EMOJI_CHOOSER (object);
+
+ if (chooser->populate_idle)
+ g_source_remove (chooser->populate_idle);
+
+ g_variant_unref (chooser->data);
+ g_object_unref (chooser->settings);
+
+ g_clear_object (&chooser->recent_long_press);
+ g_clear_object (&chooser->recent_multi_press);
+ g_clear_object (&chooser->people_long_press);
+ g_clear_object (&chooser->people_multi_press);
+ g_clear_object (&chooser->body_long_press);
+ g_clear_object (&chooser->body_multi_press);
+
+ G_OBJECT_CLASS (dino_emoji_chooser_parent_class)->finalize (object);
+}
+
+static void
+scroll_to_section (GtkButton *button,
+ gpointer data)
+{
+ EmojiSection *section = data;
+ DinoEmojiChooser *chooser;
+ GtkAdjustment *adj;
+ GtkAllocation alloc = { 0, 0, 0, 0 };
+
+ chooser = DINO_EMOJI_CHOOSER (gtk_widget_get_ancestor (GTK_WIDGET (button), 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_set_value (adj, alloc.y - BOX_SPACE);
+}
+
+static void
+add_emoji (GtkWidget *box,
+ gboolean prepend,
+ GVariant *item,
+ gunichar modifier,
+ DinoEmojiChooser *chooser);
+
+#define MAX_RECENT (7*3)
+
+static void
+populate_recent_section (DinoEmojiChooser *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;
+ }
+
+ if (!empty)
+ {
+ gtk_widget_show (chooser->recent.box);
+ gtk_widget_set_sensitive (chooser->recent.button, TRUE);
+ }
+ g_variant_unref (variant);
+}
+
+static void
+add_recent_item (DinoEmojiChooser *chooser,
+ GVariant *item,
+ gunichar modifier)
+{
+ GList *children, *l;
+ int i;
+ GVariantBuilder builder;
+
+ g_variant_ref (item);
+
+ g_variant_builder_init (&builder, G_VARIANT_TYPE ("a((auss)u)"));
+ g_variant_builder_add (&builder, "(@(auss)u)", item, modifier);
+
+ children = gtk_container_get_children (GTK_CONTAINER (chooser->recent.box));
+ 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_widget_destroy (GTK_WIDGET (l->data));
+ i--;
+ continue;
+ }
+ if (i >= MAX_RECENT)
+ {
+ gtk_widget_destroy (GTK_WIDGET (l->data));
+ continue;
+ }
+
+ g_variant_builder_add (&builder, "(@(auss)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 void
+emoji_activated (GtkFlowBox *box,
+ GtkFlowBoxChild *child,
+ gpointer data)
+{
+ DinoEmojiChooser *chooser = data;
+ char *text;
+ GtkWidget *ebox;
+ GtkWidget *label;
+ GVariant *item;
+ gunichar modifier;
+
+ gtk_popover_popdown (GTK_POPOVER (chooser));
+
+ ebox = gtk_bin_get_child (GTK_BIN (child));
+ label = gtk_bin_get_child (GTK_BIN (ebox));
+ 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 (DinoEmojiChooser *chooser,
+ GtkWidget *child)
+{
+ GtkWidget *popover;
+ GtkWidget *view;
+ GtkWidget *box;
+ GVariant *emoji_data;
+ GtkWidget *parent_popover;
+ gunichar modifier;
+
+ 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);
+ popover = gtk_popover_new (child);
+ view = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+ gtk_style_context_add_class (gtk_widget_get_style_context (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);
+ gtk_container_add (GTK_CONTAINER (popover), view);
+ gtk_container_add (GTK_CONTAINER (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_widget_show_all (view);
+ gtk_popover_popup (GTK_POPOVER (popover));
+}
+
+static void
+update_hover (GtkWidget *widget,
+ GdkEvent *event,
+ gpointer data)
+{
+ if (event->type == GDK_ENTER_NOTIFY)
+ gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_PRELIGHT, FALSE);
+ else
+ gtk_widget_unset_state_flags (widget, GTK_STATE_FLAG_PRELIGHT);
+}
+
+static void
+long_pressed_cb (GtkGesture *gesture,
+ double x,
+ double y,
+ gpointer data)
+{
+ DinoEmojiChooser *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)
+{
+ DinoEmojiChooser *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 gboolean
+popup_menu (GtkWidget *widget,
+ gpointer data)
+{
+ DinoEmojiChooser *chooser = data;
+
+ show_variations (chooser, widget);
+ return TRUE;
+}
+
+static void
+add_emoji (GtkWidget *box,
+ gboolean prepend,
+ GVariant *item,
+ gunichar modifier,
+ DinoEmojiChooser *chooser)
+{
+ GtkWidget *child;
+ GtkWidget *ebox;
+ 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)
+ {
+ gtk_widget_destroy (label);
+ return;
+ }
+
+ child = gtk_flow_box_child_new ();
+ gtk_style_context_add_class (gtk_widget_get_style_context (child), "emoji");
+ 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));
+
+ ebox = gtk_event_box_new ();
+ gtk_widget_add_events (ebox, GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);
+ g_signal_connect (ebox, "enter-notify-event", G_CALLBACK (update_hover), FALSE);
+ g_signal_connect (ebox, "leave-notify-event", G_CALLBACK (update_hover), FALSE);
+ gtk_container_add (GTK_CONTAINER (child), ebox);
+ gtk_container_add (GTK_CONTAINER (ebox), label);
+ gtk_widget_show_all (child);
+
+ if (chooser)
+ g_signal_connect (child, "popup-menu", G_CALLBACK (popup_menu), chooser);
+
+ gtk_flow_box_insert (GTK_FLOW_BOX (box), child, prepend ? 0 : -1);
+}
+
+static gboolean
+populate_emoji_chooser (gpointer data)
+{
+ DinoEmojiChooser *chooser = data;
+ GBytes *bytes = NULL;
+ GVariant *item;
+ guint64 start, now;
+
+ start = g_get_monotonic_time ();
+
+ if (!chooser->data)
+ {
+ bytes = g_resources_lookup_data ("/org/gtk/libgtk/emoji/emoji.data", 0, NULL);
+ chooser->data = g_variant_ref_sink (g_variant_new_from_bytes (G_VARIANT_TYPE ("a(auss)"), bytes, TRUE));
+ }
+
+ 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)))
+ {
+ const char *name;
+
+ g_variant_get_child (item, 1, "&s", &name);
+
+ if (strcmp (name, chooser->body.first) == 0)
+ chooser->box = chooser->body.box;
+ else if (strcmp (name, chooser->nature.first) == 0)
+ chooser->box = chooser->nature.box;
+ else if (strcmp (name, chooser->food.first) == 0)
+ chooser->box = chooser->food.box;
+ else if (strcmp (name, chooser->travel.first) == 0)
+ chooser->box = chooser->travel.box;
+ else if (strcmp (name, chooser->activities.first) == 0)
+ chooser->box = chooser->activities.box;
+ else if (strcmp (name, chooser->objects.first) == 0)
+ chooser->box = chooser->objects.box;
+ else if (strcmp (name, chooser->symbols.first) == 0)
+ chooser->box = chooser->symbols.box;
+ else if (strcmp (name, chooser->flags.first) == 0)
+ 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 + 8000)
+ return G_SOURCE_CONTINUE;
+ }
+
+ /* We scroll to the top on show, so check the right button for the 1st time */
+ gtk_widget_set_state_flags (chooser->recent.button, GTK_STATE_FLAG_CHECKED, FALSE);
+
+ g_variant_iter_free (chooser->iter);
+ chooser->iter = NULL;
+ chooser->box = NULL;
+ chooser->populate_idle = 0;
+
+ return G_SOURCE_REMOVE;
+}
+
+static void
+adj_value_changed (GtkAdjustment *adj,
+ gpointer data)
+{
+ DinoEmojiChooser *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 (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
+filter_func (GtkFlowBoxChild *child,
+ gpointer data)
+{
+ EmojiSection *section = data;
+ DinoEmojiChooser *chooser;
+ GVariant *emoji_data;
+ const char *text;
+ const char *name;
+ gboolean res;
+
+ res = TRUE;
+
+ chooser = DINO_EMOJI_CHOOSER (gtk_widget_get_ancestor (GTK_WIDGET (child), GTK_TYPE_EMOJI_CHOOSER));
+ text = gtk_entry_get_text (GTK_ENTRY (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;
+
+ g_variant_get_child (emoji_data, 1, "&s", &name);
+ res = g_str_match_string (text, name, TRUE);
+
+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 (DinoEmojiChooser *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)
+{
+ DinoEmojiChooser *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
+setup_section (DinoEmojiChooser *chooser,
+ EmojiSection *section,
+ const char *first,
+ const char *icon)
+{
+ GtkAdjustment *adj;
+ GtkWidget *image;
+
+ section->first = first;
+
+ image = gtk_bin_get_child (GTK_BIN (section->button));
+ gtk_image_set_from_icon_name (GTK_IMAGE (image), icon, GTK_ICON_SIZE_BUTTON);
+
+ adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (chooser->scrolled_window));
+
+ gtk_container_set_focus_vadjustment (GTK_CONTAINER (section->box), adj);
+ gtk_flow_box_set_filter_func (GTK_FLOW_BOX (section->box), filter_func, section, NULL);
+ g_signal_connect (section->button, "clicked", G_CALLBACK (scroll_to_section), section);
+}
+
+static void
+dino_emoji_chooser_init (DinoEmojiChooser *chooser)
+{
+ GtkAdjustment *adj;
+
+ chooser->settings = g_settings_new ("org.gtk.Settings.EmojiChooser");
+
+ gtk_widget_init_template (GTK_WIDGET (chooser));
+
+ /* 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);
+ }
+
+ chooser->recent_long_press = gtk_gesture_long_press_new (chooser->recent.box);
+ g_signal_connect (chooser->recent_long_press, "pressed", G_CALLBACK (long_pressed_cb), chooser);
+ chooser->recent_multi_press = gtk_gesture_multi_press_new (chooser->recent.box);
+ gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (chooser->recent_multi_press), GDK_BUTTON_SECONDARY);
+ g_signal_connect (chooser->recent_multi_press, "pressed", G_CALLBACK (pressed_cb), chooser);
+
+ chooser->people_long_press = gtk_gesture_long_press_new (chooser->people.box);
+ g_signal_connect (chooser->people_long_press, "pressed", G_CALLBACK (long_pressed_cb), chooser);
+ chooser->people_multi_press = gtk_gesture_multi_press_new (chooser->people.box);
+ gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (chooser->people_multi_press), GDK_BUTTON_SECONDARY);
+ g_signal_connect (chooser->people_multi_press, "pressed", G_CALLBACK (pressed_cb), chooser);
+
+ chooser->body_long_press = gtk_gesture_long_press_new (chooser->body.box);
+ g_signal_connect (chooser->body_long_press, "pressed", G_CALLBACK (long_pressed_cb), chooser);
+ chooser->body_multi_press = gtk_gesture_multi_press_new (chooser->body.box);
+ gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (chooser->body_multi_press), GDK_BUTTON_SECONDARY);
+ g_signal_connect (chooser->body_multi_press, "pressed", G_CALLBACK (pressed_cb), chooser);
+
+ 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, NULL, "emoji-recent-symbolic");
+ setup_section (chooser, &chooser->people, "grinning face", "emoji-people-symbolic");
+ setup_section (chooser, &chooser->body, "selfie", "emoji-body-symbolic");
+ setup_section (chooser, &chooser->nature, "monkey face", "emoji-nature-symbolic");
+ setup_section (chooser, &chooser->food, "grapes", "emoji-food-symbolic");
+ setup_section (chooser, &chooser->travel, "globe showing Europe-Africa", "emoji-travel-symbolic");
+ setup_section (chooser, &chooser->activities, "jack-o-lantern", "emoji-activities-symbolic");
+ setup_section (chooser, &chooser->objects, "muted speaker", "emoji-objects-symbolic");
+ setup_section (chooser, &chooser->symbols, "ATM sign", "emoji-symbols-symbolic");
+ setup_section (chooser, &chooser->flags, "chequered flag", "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
+dino_emoji_chooser_show (GtkWidget *widget)
+{
+ DinoEmojiChooser *chooser = DINO_EMOJI_CHOOSER (widget);
+ GtkAdjustment *adj;
+
+ GTK_WIDGET_CLASS (dino_emoji_chooser_parent_class)->show (widget);
+
+ adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (chooser->scrolled_window));
+ gtk_adjustment_set_value (adj, 0);
+
+ gtk_entry_set_text (GTK_ENTRY (chooser->search_entry), "");
+}
+
+static gboolean
+dino_emoji_chooser_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ DinoEmojiChooserClass *klass = DINO_EMOJI_CHOOSER_GET_CLASS(widget);
+ GtkWidget *event_widget = gtk_get_event_widget ((GdkEvent *) event);
+ if (!event_widget && event->window != gtk_widget_get_window (widget))
+ {
+ return GDK_EVENT_PROPAGATE;
+ }
+ return klass->popover_button_release_event (widget, event);
+}
+
+static void
+dino_emoji_chooser_class_init (DinoEmojiChooserClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ object_class->finalize = dino_emoji_chooser_finalize;
+ widget_class->show = dino_emoji_chooser_show;
+ klass->popover_button_release_event = widget_class->button_release_event;
+ widget_class->button_release_event = dino_emoji_chooser_button_release;
+
+ 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, "/im/dino/Dino/emojichooser.ui");
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, search_entry);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, stack);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, scrolled_window);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, recent.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, recent.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, people.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, people.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, people.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, body.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, body.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, body.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, nature.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, nature.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, nature.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, food.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, food.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, food.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, travel.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, travel.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, travel.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, activities.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, activities.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, activities.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, objects.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, objects.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, objects.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, symbols.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, symbols.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, symbols.button);
+
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, flags.box);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, flags.heading);
+ gtk_widget_class_bind_template_child (widget_class, DinoEmojiChooser, flags.button);
+
+ gtk_widget_class_bind_template_callback (widget_class, emoji_activated);
+ gtk_widget_class_bind_template_callback (widget_class, search_changed);
+}
+
+GtkWidget *
+dino_emoji_chooser_new (void)
+{
+ return GTK_WIDGET (g_object_new (GTK_TYPE_EMOJI_CHOOSER, NULL));
+}
diff --git a/main/src/emojichooser.h b/main/src/emojichooser.h
new file mode 100644
index 00000000..3e459431
--- /dev/null
+++ b/main/src/emojichooser.h
@@ -0,0 +1,36 @@
+/* gtkemojichooser.h: 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 <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_EMOJI_CHOOSER (dino_emoji_chooser_get_type ())
+#define DINO_EMOJI_CHOOSER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_EMOJI_CHOOSER, DinoEmojiChooser))
+#define DINO_EMOJI_CHOOSER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_EMOJI_CHOOSER, DinoEmojiChooserClass))
+#define GTK_IS_EMOJI_CHOOSER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_EMOJI_CHOOSER))
+#define GTK_IS_EMOJI_CHOOSER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_EMOJI_CHOOSER))
+#define DINO_EMOJI_CHOOSER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_EMOJI_CHOOSER, DinoEmojiChooserClass))
+
+typedef struct _DinoEmojiChooser DinoEmojiChooser;
+typedef struct _DinoEmojiChooserClass DinoEmojiChooserClass;
+
+GType dino_emoji_chooser_get_type (void) G_GNUC_CONST;
+GtkWidget *dino_emoji_chooser_new (void);
+
+G_END_DECLS