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Diffstat (limited to '')
| -rw-r--r-- | src/terminal-search-popover.cc | 587 |
1 files changed, 587 insertions, 0 deletions
diff --git a/src/terminal-search-popover.cc b/src/terminal-search-popover.cc new file mode 100644 index 0000000..73d682f --- /dev/null +++ b/src/terminal-search-popover.cc @@ -0,0 +1,587 @@ +/* + * Copyright © 2015 Christian Persch + * Copyright © 2005 Paolo Maggi + * Copyright © 2010 Red Hat (Red Hat author: Behdad Esfahbod) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <glib.h> +#include <glib/gi18n.h> +#include <gtk/gtk.h> + +#include "terminal-pcre2.hh" +#include "terminal-search-popover.hh" +#include "terminal-intl.hh" +#include "terminal-window.hh" +#include "terminal-app.hh" +#include "terminal-libgsystem.hh" + +typedef struct _TerminalSearchPopoverPrivate TerminalSearchPopoverPrivate; + +struct _TerminalSearchPopover +{ + GtkWindow parent_instance; +}; + +struct _TerminalSearchPopoverClass +{ + GtkWindowClass parent_class; + + /* Signals */ + void (* search) (TerminalSearchPopover *popover, + gboolean backward); +}; + +struct _TerminalSearchPopoverPrivate +{ + GtkWidget *search_entry; + GtkWidget *search_prev_button; + GtkWidget *search_next_button; + GtkWidget *reveal_button; + GtkWidget *close_button; + GtkWidget *revealer; + GtkWidget *match_case_checkbutton; + GtkWidget *entire_word_checkbutton; + GtkWidget *regex_checkbutton; + GtkWidget *wrap_around_checkbutton; + + gboolean search_text_changed; + + /* Cached regex */ + gboolean regex_caseless; + char *regex_pattern; + VteRegex *regex; +}; + +enum { + PROP_0, + PROP_REGEX, + PROP_WRAP_AROUND, + LAST_PROP +}; + +enum { + SEARCH, + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL]; +static GParamSpec *pspecs[LAST_PROP]; +static GtkListStore *history_store; + +G_DEFINE_TYPE_WITH_PRIVATE (TerminalSearchPopover, terminal_search_popover, GTK_TYPE_WINDOW) + +#define PRIV(obj) ((TerminalSearchPopoverPrivate *) terminal_search_popover_get_instance_private ((TerminalSearchPopover *)(obj))) + +/* history */ + +#define HISTORY_MIN_ITEM_LEN (3) +#define HISTORY_LENGTH (10) + +static gboolean +history_enabled (void) +{ + gboolean enabled; + + /* not quite an exact setting for this, but close enough… */ + g_object_get (gtk_settings_get_default (), "gtk-recent-files-enabled", &enabled, nullptr); + if (!enabled) + return FALSE; + + if (history_store == nullptr) { + history_store = gtk_list_store_new (1, G_TYPE_STRING); + g_object_set_data_full (G_OBJECT (terminal_app_get ()), "search-history-store", + history_store, (GDestroyNotify) g_object_unref); + } + + return TRUE; +} + +static gboolean +history_remove_item (const char *text) +{ + GtkTreeModel *model = GTK_TREE_MODEL (history_store); + GtkTreeIter iter; + + if (!gtk_tree_model_get_iter_first (model, &iter)) + return FALSE; + + do { + gs_free gchar *item_text; + + gtk_tree_model_get (model, &iter, 0, &item_text, -1); + + if (item_text != nullptr && strcmp (item_text, text) == 0) { + gtk_list_store_remove (history_store, &iter); + return TRUE; + } + } while (gtk_tree_model_iter_next (model, &iter)); + + return FALSE; +} + +static void +history_clamp (int max) +{ + GtkTreePath *path; + GtkTreeIter iter; + + /* -1 because TreePath counts from 0 */ + path = gtk_tree_path_new_from_indices (max - 1, -1); + + if (gtk_tree_model_get_iter (GTK_TREE_MODEL (history_store), &iter, path)) + while (1) + if (!gtk_list_store_remove (history_store, &iter)) + break; + + gtk_tree_path_free (path); +} + +static void +history_insert_item (const char *text) +{ + GtkTreeIter iter; + + if (!history_enabled () || text == nullptr) + return; + + if (g_utf8_strlen (text, -1) <= HISTORY_MIN_ITEM_LEN) + return; + + /* remove the text from the store if it was already + * present. If it wasn't, clamp to max history - 1 + * before inserting the new row, otherwise appending + * would not work */ + if (!history_remove_item (text)) + history_clamp (HISTORY_LENGTH - 1); + + gtk_list_store_insert_with_values (history_store, &iter, 0, + 0, text, + -1); +} + +/* helper functions */ + +static void +update_sensitivity (TerminalSearchPopover *popover) +{ + TerminalSearchPopoverPrivate *priv = PRIV (popover); + gboolean can_search; + + can_search = priv->regex != nullptr; + + gtk_widget_set_sensitive (priv->search_prev_button, can_search); + gtk_widget_set_sensitive (priv->search_next_button, can_search); +} + +static void +perform_search (TerminalSearchPopover *popover, + gboolean backward) +{ + TerminalSearchPopoverPrivate *priv = PRIV (popover); + + if (priv->regex == nullptr) + return; + + /* Add to search history */ + if (priv->search_text_changed) { + const char *search_text; + + search_text = gtk_entry_get_text (GTK_ENTRY (priv->search_entry)); + history_insert_item (search_text); + + priv->search_text_changed = FALSE; + } + + g_signal_emit (popover, signals[SEARCH], 0, backward); +} + +static void +previous_match_cb (GtkWidget *widget, + TerminalSearchPopover *popover) +{ + perform_search (popover, TRUE); +} + +static void +next_match_cb (GtkWidget *widget, + TerminalSearchPopover *popover) +{ + perform_search (popover, FALSE); +} + +static void +close_clicked_cb (GtkWidget *widget, + GtkWidget *popover) +{ + gtk_widget_hide (popover); +} + +static void +search_button_clicked_cb (GtkWidget *button, + TerminalSearchPopover *popover) +{ + TerminalSearchPopoverPrivate *priv = PRIV (popover); + + perform_search (popover, button == priv->search_prev_button); +} + +static gboolean +key_press_cb (GtkWidget *popover, + GdkEventKey *event, + gpointer user_data G_GNUC_UNUSED) +{ + if (event->keyval == GDK_KEY_Escape) { + gtk_widget_hide (popover); + return TRUE; + } + return FALSE; +} + +static void +update_regex (TerminalSearchPopover *popover) +{ + TerminalSearchPopoverPrivate *priv = PRIV (popover); + const char *search_text; + gboolean caseless; + gs_free char *pattern; + gs_free_error GError *error = nullptr; + + search_text = gtk_entry_get_text (GTK_ENTRY (priv->search_entry)); + + caseless = !gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->match_case_checkbutton)); + + if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->regex_checkbutton))) { + pattern = g_strdup (search_text); + } else { + pattern = g_regex_escape_string (search_text, -1); + } + + if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->entire_word_checkbutton))) { + char *new_pattern; + new_pattern = g_strdup_printf ("\\b%s\\b", pattern); + g_free (pattern); + pattern = new_pattern; + } + + if (priv->regex_caseless == caseless && + g_strcmp0 (priv->regex_pattern, pattern) == 0) + return; + + if (priv->regex) { + vte_regex_unref (priv->regex); + } + + g_clear_pointer (&priv->regex_pattern, g_free); + + /* FIXME: if comping the regex fails, show the error message somewhere */ + if (search_text[0] != '\0') { + guint32 compile_flags; + + compile_flags = PCRE2_UTF | PCRE2_NO_UTF_CHECK | PCRE2_UCP | PCRE2_MULTILINE; + if (caseless) + compile_flags |= PCRE2_CASELESS; + + priv->regex = vte_regex_new_for_search (pattern, -1, compile_flags, &error); + if (priv->regex != nullptr && + (!vte_regex_jit (priv->regex, PCRE2_JIT_COMPLETE, nullptr) || + !vte_regex_jit (priv->regex, PCRE2_JIT_PARTIAL_SOFT, nullptr))) { + } + + if (priv->regex != nullptr) + gs_transfer_out_value (&priv->regex_pattern, &pattern); + } else { + priv->regex = nullptr; + } + + priv->regex_caseless = caseless; + + update_sensitivity (popover); + + g_object_notify_by_pspec (G_OBJECT (popover), pspecs[PROP_REGEX]); +} + +static void +search_text_changed_cb (GtkToggleButton *button, + TerminalSearchPopover *popover) +{ + TerminalSearchPopoverPrivate *priv = PRIV (popover); + + update_regex (popover); + priv->search_text_changed = TRUE; +} + +static void +search_parameters_changed_cb (GtkToggleButton *button, + TerminalSearchPopover *popover) +{ + update_regex (popover); +} + +static void +wrap_around_toggled_cb (GtkToggleButton *button, + TerminalSearchPopover *popover) +{ + g_object_notify_by_pspec (G_OBJECT (popover), pspecs[PROP_WRAP_AROUND]); +} + +/* public functions */ + +/* Class implementation */ + +static void +terminal_search_popover_grab_focus (GtkWidget *widget) +{ + TerminalSearchPopover *popover = TERMINAL_SEARCH_POPOVER (widget); + TerminalSearchPopoverPrivate *priv = PRIV (popover); + + gtk_widget_grab_focus (priv->search_entry); +} + +static void +terminal_search_popover_init (TerminalSearchPopover *popover) +{ + TerminalSearchPopoverPrivate *priv = PRIV (popover); + GtkWidget *widget = GTK_WIDGET (popover); + + priv->regex_pattern = 0; + priv->regex_caseless = TRUE; + + gtk_widget_init_template (widget); + + /* Make the search entry reasonably wide */ + gtk_widget_set_size_request (priv->search_entry, 300, -1); + + /* Add entry completion with history */ +#if 0 + g_object_set (G_OBJECT (priv->search_entry), + "model", history_store, + "entry-text-column", 0, + nullptr); +#endif + + if (history_enabled ()) { + gs_unref_object GtkEntryCompletion *completion; + + completion = gtk_entry_completion_new (); + gtk_entry_completion_set_model (completion, GTK_TREE_MODEL (history_store)); + gtk_entry_completion_set_text_column (completion, 0); + gtk_entry_completion_set_minimum_key_length (completion, HISTORY_MIN_ITEM_LEN); + gtk_entry_completion_set_popup_completion (completion, FALSE); + gtk_entry_completion_set_inline_completion (completion, TRUE); + gtk_entry_set_completion (GTK_ENTRY (priv->search_entry), completion); + } + +#if 0 + gtk_popover_set_default_widget (GTK_POPOVER (popover), priv->search_prev_button); +#else + GtkWindow *window = GTK_WINDOW (popover); + gtk_window_set_default (window, priv->search_prev_button); +#endif + + g_signal_connect (priv->search_entry, "previous-match", G_CALLBACK (previous_match_cb), popover); + g_signal_connect (priv->search_entry, "next-match", G_CALLBACK (next_match_cb), popover); + + g_signal_connect (priv->search_prev_button, "clicked", G_CALLBACK (search_button_clicked_cb), popover); + g_signal_connect (priv->search_next_button, "clicked", G_CALLBACK (search_button_clicked_cb), popover); + + g_signal_connect (priv->close_button, "clicked", G_CALLBACK (close_clicked_cb), popover); + + g_object_bind_property (priv->reveal_button, "active", + priv->revealer, "reveal-child", + G_BINDING_DEFAULT); + + update_sensitivity (popover); + + g_signal_connect (priv->search_entry, "search-changed", G_CALLBACK (search_text_changed_cb), popover); + g_signal_connect (priv->match_case_checkbutton, "toggled", G_CALLBACK (search_parameters_changed_cb), popover); + g_signal_connect (priv->entire_word_checkbutton, "toggled", G_CALLBACK (search_parameters_changed_cb), popover); + g_signal_connect (priv->regex_checkbutton, "toggled", G_CALLBACK (search_parameters_changed_cb), popover); + + g_signal_connect (priv->wrap_around_checkbutton, "toggled", G_CALLBACK (wrap_around_toggled_cb), popover); + + g_signal_connect (popover, "key-press-event", G_CALLBACK (key_press_cb), nullptr); + + if (terminal_app_get_dialog_use_headerbar (terminal_app_get ())) { + GtkWidget *headerbar; + + headerbar = (GtkWidget*)g_object_new (GTK_TYPE_HEADER_BAR, + "title", gtk_window_get_title (window), + "has-subtitle", FALSE, + "show-close-button", TRUE, + "visible", TRUE, + nullptr); + gtk_style_context_add_class (gtk_widget_get_style_context (headerbar), + "default-decoration"); + gtk_window_set_titlebar (window, headerbar); + } +} + +static void +terminal_search_popover_finalize (GObject *object) +{ + TerminalSearchPopover *popover = TERMINAL_SEARCH_POPOVER (object); + TerminalSearchPopoverPrivate *priv = PRIV (popover); + + if (priv->regex) { + vte_regex_unref (priv->regex); + } + + g_free (priv->regex_pattern); + + G_OBJECT_CLASS (terminal_search_popover_parent_class)->finalize (object); +} + +static void +terminal_search_popover_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + TerminalSearchPopover *popover = TERMINAL_SEARCH_POPOVER (object); + + switch (prop_id) { + case PROP_REGEX: + g_value_set_boxed (value, terminal_search_popover_get_regex (popover)); + break; + case PROP_WRAP_AROUND: + g_value_set_boolean (value, terminal_search_popover_get_wrap_around (popover)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +terminal_search_popover_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + switch (prop_id) { + case PROP_REGEX: + case PROP_WRAP_AROUND: + /* not writable */ + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +terminal_search_popover_class_init (TerminalSearchPopoverClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + gobject_class->finalize = terminal_search_popover_finalize; + gobject_class->get_property = terminal_search_popover_get_property; + gobject_class->set_property = terminal_search_popover_set_property; + + widget_class->grab_focus = terminal_search_popover_grab_focus; + + signals[SEARCH] = + g_signal_new (I_("search"), + G_OBJECT_CLASS_TYPE (gobject_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (TerminalSearchPopoverClass, search), + nullptr, nullptr, + g_cclosure_marshal_VOID__BOOLEAN, + G_TYPE_NONE, + 1, + G_TYPE_BOOLEAN); + + pspecs[PROP_REGEX] = + g_param_spec_boxed ("regex", nullptr, nullptr, + VTE_TYPE_REGEX, + GParamFlags(G_PARAM_READABLE | + G_PARAM_STATIC_NAME | + G_PARAM_STATIC_NICK | + G_PARAM_STATIC_BLURB)); + + pspecs[PROP_WRAP_AROUND] = + g_param_spec_boolean ("wrap-around", nullptr, nullptr, + FALSE, + GParamFlags(G_PARAM_READABLE | + G_PARAM_STATIC_NAME | + G_PARAM_STATIC_NICK | + G_PARAM_STATIC_BLURB)); + + g_object_class_install_properties (gobject_class, G_N_ELEMENTS (pspecs), pspecs); + + gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/terminal/ui/search-popover.ui"); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, search_entry); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, search_prev_button); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, search_next_button); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, reveal_button); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, close_button); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, revealer); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, match_case_checkbutton); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, entire_word_checkbutton); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, regex_checkbutton); + gtk_widget_class_bind_template_child_private (widget_class, TerminalSearchPopover, wrap_around_checkbutton); +} + +/* public API */ + +/** + * terminal_search_popover_new: + * + * Returns: a new #TerminalSearchPopover + */ +TerminalSearchPopover * +terminal_search_popover_new (GtkWidget *relative_to_widget) +{ + return reinterpret_cast<TerminalSearchPopover*> + (g_object_new (TERMINAL_TYPE_SEARCH_POPOVER, +#if 0 + "relative-to", relative_to_widget, +#else + "transient-for", gtk_widget_get_toplevel (relative_to_widget), +#endif + nullptr)); +} + +/** + * terminal_search_popover_get_regex: + * @popover: a #TerminalSearchPopover + * + * Returns: (transfer none): the search regex, or %nullptr + */ +VteRegex * +terminal_search_popover_get_regex (TerminalSearchPopover *popover) +{ + g_return_val_if_fail (TERMINAL_IS_SEARCH_POPOVER (popover), nullptr); + + return PRIV (popover)->regex; +} + +/** + * terminal_search_popover_get_wrap_around: + * @popover: a #TerminalSearchPopover + * + * Returns: (transfer none): whether search should wrap around + */ +gboolean +terminal_search_popover_get_wrap_around (TerminalSearchPopover *popover) +{ + g_return_val_if_fail (TERMINAL_IS_SEARCH_POPOVER (popover), FALSE); + + return gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (PRIV (popover)->wrap_around_checkbutton)); +} |