483 lines
14 KiB
C
483 lines
14 KiB
C
/*
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* gedit-quick-highlight-plugin.c
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*
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* Copyright (C) 2018 Martin Blanchard
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "config.h"
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#include <glib/gi18n.h>
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#include <gedit/gedit-debug.h>
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#include <gedit/gedit-document.h>
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#include <gedit/gedit-view-activatable.h>
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#include <gedit/gedit-view.h>
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#include "gedit-quick-highlight-plugin.h"
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struct _GeditQuickHighlightPluginPrivate
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{
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GeditView *view;
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GeditDocument *buffer;
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GtkTextMark *insert_mark;
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GtkSourceSearchContext *search_context;
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GtkSourceStyle *style;
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gulong buffer_handler_id;
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gulong mark_set_handler_id;
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gulong delete_range_handler_id;
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gulong style_scheme_handler_id;
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guint queued_highlight;
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};
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enum
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{
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PROP_0,
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PROP_VIEW
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};
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static void gedit_view_activatable_iface_init (GeditViewActivatableInterface *iface);
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G_DEFINE_DYNAMIC_TYPE_EXTENDED (GeditQuickHighlightPlugin,
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gedit_quick_highlight_plugin,
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PEAS_TYPE_EXTENSION_BASE,
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0,
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G_IMPLEMENT_INTERFACE_DYNAMIC (GEDIT_TYPE_VIEW_ACTIVATABLE,
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gedit_view_activatable_iface_init)
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G_ADD_PRIVATE_DYNAMIC (GeditQuickHighlightPlugin))
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static void gedit_quick_highlight_plugin_notify_buffer_cb (GObject *object, GParamSpec *pspec, gpointer user_data);
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static void gedit_quick_highlight_plugin_mark_set_cb (GtkTextBuffer *textbuffer, GtkTextIter *location, GtkTextMark *mark, gpointer user_data);
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static void gedit_quick_highlight_plugin_delete_range_cb (GtkTextBuffer *textbuffer, GtkTextIter *start, GtkTextIter *end, gpointer user_data);
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static void gedit_quick_highlight_plugin_notify_style_scheme_cb (GObject *object, GParamSpec *pspec, gpointer user_data);
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static void
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gedit_quick_highlight_plugin_load_style (GeditQuickHighlightPlugin *plugin)
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{
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GtkSourceStyleScheme *style_scheme;
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GtkSourceStyle *style = NULL;
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g_return_if_fail (GEDIT_IS_QUICK_HIGHLIGHT_PLUGIN (plugin));
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if (plugin->priv->buffer == NULL)
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{
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return;
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}
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gedit_debug (DEBUG_PLUGINS);
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g_clear_pointer (&plugin->priv->style, gtk_source_style_unref);
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style_scheme = gtk_source_buffer_get_style_scheme (GTK_SOURCE_BUFFER (plugin->priv->buffer));
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if (style_scheme != NULL)
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{
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style = gtk_source_style_scheme_get_style (style_scheme, "quick-highlight-match");
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if (style != NULL)
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{
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plugin->priv->style = gtk_source_style_ref (style);
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}
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}
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}
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static gboolean
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gedit_quick_highlight_plugin_highlight_worker (gpointer user_data)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (user_data);
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GtkSourceSearchSettings *search_settings;
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GtkTextIter start, end;
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g_autofree gchar *text = NULL;
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g_assert (GEDIT_IS_QUICK_HIGHLIGHT_PLUGIN (plugin));
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plugin->priv->queued_highlight = 0;
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if (!gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER (plugin->priv->buffer), &start, &end))
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{
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g_clear_object (&plugin->priv->search_context);
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return G_SOURCE_REMOVE;
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}
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if (gtk_text_iter_get_line (&start) != gtk_text_iter_get_line (&end))
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{
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g_clear_object (&plugin->priv->search_context);
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return G_SOURCE_REMOVE;
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}
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if (plugin->priv->search_context == NULL)
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{
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search_settings =
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g_object_new (GTK_SOURCE_TYPE_SEARCH_SETTINGS,
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"at-word-boundaries", FALSE,
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"case-sensitive", TRUE,
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"regex-enabled", FALSE,
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NULL);
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plugin->priv->search_context =
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g_object_new (GTK_SOURCE_TYPE_SEARCH_CONTEXT,
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"buffer", plugin->priv->buffer,
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"highlight", FALSE,
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"match-style", plugin->priv->style,
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"settings", search_settings,
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NULL);
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g_object_unref (search_settings);
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}
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else
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{
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search_settings =
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gtk_source_search_context_get_settings (plugin->priv->search_context);
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}
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text = gtk_text_iter_get_slice (&start, &end);
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gtk_source_search_settings_set_search_text (search_settings, text);
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gtk_source_search_context_set_highlight (plugin->priv->search_context, TRUE);
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return G_SOURCE_REMOVE;
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}
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static void
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gedit_quick_highlight_plugin_queue_update (GeditQuickHighlightPlugin *plugin)
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{
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g_return_if_fail (GEDIT_IS_QUICK_HIGHLIGHT_PLUGIN (plugin));
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if (plugin->priv->queued_highlight != 0)
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{
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return;
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}
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plugin->priv->queued_highlight =
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gdk_threads_add_idle_full (G_PRIORITY_LOW,
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gedit_quick_highlight_plugin_highlight_worker,
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g_object_ref (plugin),
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g_object_unref);
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}
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static void
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gedit_quick_highlight_plugin_notify_weak_buffer_cb (gpointer data,
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GObject *where_the_object_was)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (data);
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g_assert (GEDIT_IS_QUICK_HIGHLIGHT_PLUGIN (plugin));
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plugin->priv->style_scheme_handler_id = 0;
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plugin->priv->buffer = NULL;
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}
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static void
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gedit_quick_highlight_plugin_unref_weak_buffer (GeditQuickHighlightPlugin *plugin)
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{
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g_return_if_fail (GEDIT_IS_QUICK_HIGHLIGHT_PLUGIN (plugin));
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if (plugin->priv->buffer == NULL)
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{
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return;
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}
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if (plugin->priv->delete_range_handler_id > 0)
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{
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g_signal_handler_disconnect (plugin->priv->buffer,
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plugin->priv->delete_range_handler_id);
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plugin->priv->delete_range_handler_id = 0;
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}
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if (plugin->priv->mark_set_handler_id > 0)
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{
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g_signal_handler_disconnect (plugin->priv->buffer,
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plugin->priv->mark_set_handler_id);
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plugin->priv->mark_set_handler_id = 0;
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}
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if (plugin->priv->style_scheme_handler_id > 0)
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{
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g_signal_handler_disconnect (plugin->priv->buffer,
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plugin->priv->style_scheme_handler_id);
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plugin->priv->style_scheme_handler_id = 0;
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}
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g_object_weak_unref (G_OBJECT (plugin->priv->buffer),
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gedit_quick_highlight_plugin_notify_weak_buffer_cb,
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plugin);
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plugin->priv->buffer = NULL;
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}
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static void
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gedit_quick_highlight_plugin_set_buffer (GeditQuickHighlightPlugin *plugin,
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GeditDocument *buffer)
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{
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g_return_if_fail (GEDIT_IS_QUICK_HIGHLIGHT_PLUGIN (plugin));
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g_return_if_fail (GEDIT_IS_DOCUMENT (buffer));
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if (plugin->priv->buffer == buffer)
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{
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return;
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}
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gedit_debug (DEBUG_PLUGINS);
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gedit_quick_highlight_plugin_unref_weak_buffer (plugin);
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plugin->priv->buffer = buffer;
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if (plugin->priv->buffer != NULL)
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{
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g_object_weak_ref (G_OBJECT (plugin->priv->buffer),
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gedit_quick_highlight_plugin_notify_weak_buffer_cb,
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plugin);
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plugin->priv->style_scheme_handler_id =
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g_signal_connect (plugin->priv->buffer,
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"notify::style-scheme",
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G_CALLBACK (gedit_quick_highlight_plugin_notify_style_scheme_cb),
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plugin);
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plugin->priv->mark_set_handler_id =
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g_signal_connect (plugin->priv->buffer,
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"mark-set",
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G_CALLBACK (gedit_quick_highlight_plugin_mark_set_cb),
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plugin);
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plugin->priv->delete_range_handler_id =
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g_signal_connect (plugin->priv->buffer,
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"delete-range",
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G_CALLBACK (gedit_quick_highlight_plugin_delete_range_cb),
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plugin);
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plugin->priv->insert_mark =
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gtk_text_buffer_get_insert (GTK_TEXT_BUFFER (plugin->priv->buffer));
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gedit_quick_highlight_plugin_load_style (plugin);
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gedit_quick_highlight_plugin_queue_update (plugin);
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}
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}
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static void
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gedit_quick_highlight_plugin_mark_set_cb (GtkTextBuffer *textbuffer,
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GtkTextIter *location,
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GtkTextMark *mark,
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gpointer user_data)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (user_data);
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g_assert (GEDIT_QUICK_HIGHLIGHT_PLUGIN (plugin));
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if G_LIKELY (mark != plugin->priv->insert_mark)
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{
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return;
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}
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gedit_quick_highlight_plugin_queue_update (plugin);
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}
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static void
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gedit_quick_highlight_plugin_delete_range_cb (GtkTextBuffer *textbuffer,
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GtkTextIter *start,
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GtkTextIter *end,
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gpointer user_data)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (user_data);
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g_assert (GEDIT_QUICK_HIGHLIGHT_PLUGIN (plugin));
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gedit_quick_highlight_plugin_queue_update (plugin);
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}
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static void
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gedit_quick_highlight_plugin_notify_style_scheme_cb (GObject *object,
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GParamSpec *pspec,
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gpointer user_data)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (user_data);
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g_assert (GEDIT_QUICK_HIGHLIGHT_PLUGIN (plugin));
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gedit_quick_highlight_plugin_load_style (plugin);
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}
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static void
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gedit_quick_highlight_plugin_dispose (GObject *object)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (object);
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g_clear_object (&plugin->priv->search_context);
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gedit_quick_highlight_plugin_unref_weak_buffer (plugin);
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g_clear_object (&plugin->priv->view);
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G_OBJECT_CLASS (gedit_quick_highlight_plugin_parent_class)->dispose (object);
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}
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static void
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gedit_quick_highlight_plugin_finalize (GObject *object)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (object);
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g_clear_pointer (&plugin->priv->style, gtk_source_style_unref);
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G_OBJECT_CLASS (gedit_quick_highlight_plugin_parent_class)->finalize (object);
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}
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static void
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gedit_quick_highlight_plugin_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (object);
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switch (prop_id)
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{
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case PROP_VIEW:
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g_value_set_object (value, plugin->priv->view);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gedit_quick_highlight_plugin_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (object);
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switch (prop_id)
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{
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case PROP_VIEW:
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plugin->priv->view = GEDIT_VIEW (g_value_dup_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gedit_quick_highlight_plugin_class_init (GeditQuickHighlightPluginClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->dispose = gedit_quick_highlight_plugin_dispose;
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object_class->finalize = gedit_quick_highlight_plugin_finalize;
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object_class->set_property = gedit_quick_highlight_plugin_set_property;
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object_class->get_property = gedit_quick_highlight_plugin_get_property;
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g_object_class_override_property (object_class, PROP_VIEW, "view");
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}
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static void
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gedit_quick_highlight_plugin_class_finalize (GeditQuickHighlightPluginClass *klass)
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{
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}
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static void
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gedit_quick_highlight_plugin_init (GeditQuickHighlightPlugin *plugin)
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{
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plugin->priv = gedit_quick_highlight_plugin_get_instance_private (plugin);
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}
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static void
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gedit_quick_highlight_plugin_activate (GeditViewActivatable *activatable)
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{
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GeditQuickHighlightPlugin *plugin;
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GtkTextBuffer *buffer;
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gedit_debug (DEBUG_PLUGINS);
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plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (activatable);
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plugin->priv->buffer_handler_id =
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g_signal_connect (plugin->priv->view,
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"notify::buffer",
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G_CALLBACK (gedit_quick_highlight_plugin_notify_buffer_cb),
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plugin);
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (plugin->priv->view));
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gedit_quick_highlight_plugin_set_buffer (plugin, GEDIT_DOCUMENT (buffer));
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}
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static void
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gedit_quick_highlight_plugin_deactivate (GeditViewActivatable *activatable)
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{
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GeditQuickHighlightPlugin *plugin;
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gedit_debug (DEBUG_PLUGINS);
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plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (activatable);
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g_clear_pointer (&plugin->priv->style, gtk_source_style_unref);
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g_clear_object (&plugin->priv->search_context);
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gedit_quick_highlight_plugin_unref_weak_buffer (plugin);
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if (plugin->priv->view != NULL && plugin->priv->buffer_handler_id > 0)
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{
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g_signal_handler_disconnect (plugin->priv->view,
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plugin->priv->buffer_handler_id);
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plugin->priv->buffer_handler_id = 0;
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}
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}
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static void
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gedit_quick_highlight_plugin_notify_buffer_cb (GObject *object,
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GParamSpec *pspec,
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gpointer user_data)
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{
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GeditQuickHighlightPlugin *plugin = GEDIT_QUICK_HIGHLIGHT_PLUGIN (user_data);
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GtkTextBuffer *buffer;
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g_assert (GEDIT_IS_QUICK_HIGHLIGHT_PLUGIN (plugin));
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (plugin->priv->view));
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gedit_quick_highlight_plugin_set_buffer (plugin, GEDIT_DOCUMENT (buffer));
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}
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static void
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gedit_view_activatable_iface_init (GeditViewActivatableInterface *iface)
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{
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iface->activate = gedit_quick_highlight_plugin_activate;
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iface->deactivate = gedit_quick_highlight_plugin_deactivate;
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}
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G_MODULE_EXPORT void
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peas_register_types (PeasObjectModule *module)
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{
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gedit_quick_highlight_plugin_register_type (G_TYPE_MODULE (module));
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peas_object_module_register_extension_type (module,
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GEDIT_TYPE_VIEW_ACTIVATABLE,
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GEDIT_TYPE_QUICK_HIGHLIGHT_PLUGIN);
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}
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/* ex:set ts=8 noet: */
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