[latexila/wip/build-tools-revamp] LatexilaSynctex (not finished)
- From: Sébastien Wilmet <swilmet src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [latexila/wip/build-tools-revamp] LatexilaSynctex (not finished)
- Date: Mon, 19 May 2014 22:20:09 +0000 (UTC)
commit 1edcbafce3bc06f1f30c015dffc897cb98d67b87
Author: Sébastien Wilmet <swilmet gnome org>
Date: Sat May 17 01:25:32 2014 +0200
LatexilaSynctex (not finished)
It is needed for the build tools for opening a PDF file with synctex
support with evince. Since I don't want to use the Vala code in C, a
rewrite of synctex.vala in C was needed.
synctex.vala uses the synchronous API, which is bad. The rewrite in C
uses the asynchronous API (it's better).
configure.ac | 2 +
src/Makefile.am | 2 +-
src/evince/Makefile.am | 22 ++
src/evince/evince-gdbus.xml | 30 ++
src/liblatexila/Makefile.am | 34 ++-
src/liblatexila/latexila-build-tool.c | 19 +-
src/liblatexila/latexila-synctex.c | 541 +++++++++++++++++++++++++++++++++
src/liblatexila/latexila-synctex.h | 72 +++++
src/liblatexila/latexila-types.h | 1 +
src/liblatexila/latexila-utils.c | 53 ++++
src/liblatexila/latexila-utils.h | 10 +-
src/liblatexila/latexila.h | 1 +
12 files changed, 762 insertions(+), 25 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 07a1342..d420cc9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -75,6 +75,7 @@ AC_PROG_INSTALL
AM_PROG_CC_C_O
AC_PATH_PROG([GLIB_COMPILE_RESOURCES], [glib-compile-resources])
AC_PATH_PROG([GLIB_MKENUMS], [glib-mkenums])
+AC_PATH_PROG([GDBUS_CODEGEN], [gdbus-codegen])
AM_PROG_VALAC([${VALA_REQUIRED_VERSION}],
[found_vala=true]
[found_vala=false])
@@ -168,6 +169,7 @@ AC_CONFIG_FILES([Makefile
man/Makefile
po/Makefile.in
src/Makefile
+ src/evince/Makefile
src/gedit/Makefile
src/liblatexila/Makefile
src/ui/Makefile
diff --git a/src/Makefile.am b/src/Makefile.am
index 508fd87..92f905e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = gedit liblatexila ui
+SUBDIRS = evince gedit liblatexila ui
bin_PROGRAMS = latexila
diff --git a/src/evince/Makefile.am b/src/evince/Makefile.am
new file mode 100644
index 0000000..b787b83
--- /dev/null
+++ b/src/evince/Makefile.am
@@ -0,0 +1,22 @@
+noinst_LTLIBRARIES = libevince.la
+
+libevince_la_CFLAGS = $(WARN_CFLAGS)
+
+libevince_built_sources = \
+ evince-gdbus-generated.c \
+ evince-gdbus-generated.h
+
+nodist_libevince_la_SOURCES = $(libevince_built_sources)
+
+BUILT_SOURCES = $(libevince_built_sources)
+
+evince-gdbus-generated.c evince-gdbus-generated.h: evince-gdbus.xml Makefile
+ $(AM_V_GEN) $(GDBUS_CODEGEN) \
+ --interface-prefix=org.gnome.evince. \
+ --c-namespace=Evince \
+ --generate-c-code evince-gdbus-generated \
+ evince-gdbus.xml
+
+EXTRA_DIST = evince-gdbus.xml
+
+-include $(top_srcdir)/git.mk
diff --git a/src/evince/evince-gdbus.xml b/src/evince/evince-gdbus.xml
new file mode 100644
index 0000000..0da995f
--- /dev/null
+++ b/src/evince/evince-gdbus.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Introspection 0.1//EN"
+ "http://www.freedesktop.org/software/dbus/introspection.dtd";>
+<node>
+ <interface name="org.gnome.evince.Daemon">
+ <method name="FindDocument">
+ <arg type="s" name="uri" direction="in"/>
+ <arg type="b" name="spawn" direction="in"/>
+ <arg type="s" name="owner" direction="out"/>
+ </method>
+ </interface>
+ <interface name='org.gnome.evince.Application'>
+ <method name='GetWindowList'>
+ <arg type='ao' name='window_list' direction='out'/>
+ </method>
+ </interface>
+ <interface name='org.gnome.evince.Window'>
+ <method name='SyncView'>
+ <arg type='s' name='source_file' direction='in'/>
+ <arg type='(ii)' name='source_point' direction='in'/>
+ <arg type='u' name='timestamp' direction='in'/>
+ </method>
+ <signal name='SyncSource'>
+ <arg type='s' name='source_file' direction='out'/>
+ <arg type='(ii)' name='source_point' direction='out'/>
+ <arg type='u' name='timestamp' direction='out'/>
+ </signal>
+ <signal name='Closed'/>
+ </interface>
+</node>
diff --git a/src/liblatexila/Makefile.am b/src/liblatexila/Makefile.am
index 538c4e5..1beb3cc 100644
--- a/src/liblatexila/Makefile.am
+++ b/src/liblatexila/Makefile.am
@@ -2,10 +2,16 @@
noinst_LTLIBRARIES = liblatexila.la
-liblatexila_la_CFLAGS = $(WARN_CFLAGS) $(CODE_COVERAGE_CFLAGS)
+liblatexila_la_CFLAGS = \
+ $(WARN_CFLAGS) \
+ $(CODE_COVERAGE_CFLAGS) \
+ -I$(top_builddir)/src/evince
+
liblatexila_la_LDFLAGS = $(CODE_COVERAGE_LDFLAGS)
+liblatexila_la_LIBADD = ../evince/libevince.la
liblatexila_headers = \
+ latexila.h \
latexila-build-job.h \
latexila-build-tool.h \
latexila-build-tools.h \
@@ -14,14 +20,11 @@ liblatexila_headers = \
latexila-build-view.h \
latexila-post-processor.h \
latexila-post-processor-all-output.h \
+ latexila-synctex.h \
latexila-types.h \
latexila-utils.h
-BUILT_SOURCES = \
- latexila-enum-types.c \
- latexila-enum-types.h
-
-liblatexila_la_SOURCES = \
+liblatexila_sources = \
latexila-build-job.c \
latexila-build-tool.c \
latexila-build-tools.c \
@@ -30,9 +33,20 @@ liblatexila_la_SOURCES = \
latexila-build-view.c \
latexila-post-processor.c \
latexila-post-processor-all-output.c \
- latexila-utils.c \
- $(liblatexila_headers) \
- $(BUILT_SOURCES)
+ latexila-synctex.c \
+ latexila-utils.c
+
+liblatexila_built_sources = \
+ latexila-enum-types.c \
+ latexila-enum-types.h
+
+liblatexila_la_SOURCES = \
+ $(liblatexila_headers) \
+ $(liblatexila_sources)
+
+nodist_liblatexila_la_SOURCES = $(liblatexila_built_sources)
+
+BUILT_SOURCES = $(liblatexila_built_sources)
ENUM_TYPES = $(liblatexila_headers)
@@ -64,7 +78,7 @@ Latexila.gir: liblatexila.la
Latexila_gir_NAMESPACE = Latexila
Latexila_gir_INCLUDES = Gtk-3.0
Latexila_gir_LIBS = liblatexila.la
-Latexila_gir_FILES = $(liblatexila_la_SOURCES)
+Latexila_gir_FILES = $(liblatexila_la_SOURCES) $(nodist_liblatexila_la_SOURCES)
noinst_DATA += Latexila.gir Latexila.typelib
CLEANFILES += Latexila.gir Latexila.typelib
diff --git a/src/liblatexila/latexila-build-tool.c b/src/liblatexila/latexila-build-tool.c
index f954e68..a45ff02 100644
--- a/src/liblatexila/latexila-build-tool.c
+++ b/src/liblatexila/latexila-build-tool.c
@@ -495,13 +495,12 @@ query_exists_cb (GFile *file,
GAsyncResult *result,
LatexilaBuildTool *build_tool)
{
- GFileInfo *info;
- GCancellable *cancellable;
gboolean file_exists;
+ GCancellable *cancellable;
gchar *uri = NULL;
GError *error = NULL;
- info = g_file_query_info_finish (file, result, NULL);
+ file_exists = latexila_utils_file_query_exists_finish (file, result);
cancellable = g_task_get_cancellable (build_tool->priv->task);
if (g_cancellable_is_cancelled (cancellable))
@@ -513,9 +512,6 @@ query_exists_cb (GFile *file,
goto out;
}
- file_exists = info != NULL;
- g_clear_object (&info);
-
uri = g_file_get_uri (file);
if (!file_exists)
@@ -660,13 +656,10 @@ open_file (LatexilaBuildTool *build_tool)
file = g_file_new_for_uri (uri);
- g_file_query_info_async (file,
- G_FILE_ATTRIBUTE_STANDARD_TYPE,
- G_FILE_QUERY_INFO_NONE,
- G_PRIORITY_DEFAULT,
- g_task_get_cancellable (build_tool->priv->task),
- (GAsyncReadyCallback) query_exists_cb,
- build_tool);
+ latexila_utils_file_query_exists_async (file,
+ g_task_get_cancellable (build_tool->priv->task),
+ (GAsyncReadyCallback) query_exists_cb,
+ build_tool);
g_free (filename);
g_free (shortname);
diff --git a/src/liblatexila/latexila-synctex.c b/src/liblatexila/latexila-synctex.c
new file mode 100644
index 0000000..a501be4
--- /dev/null
+++ b/src/liblatexila/latexila-synctex.c
@@ -0,0 +1,541 @@
+/*
+ * This file is part of LaTeXila.
+ *
+ * Copyright (C) 2014 - Sébastien Wilmet <swilmet gnome org>
+ *
+ * LaTeXila 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.
+ *
+ * LaTeXila 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 LaTeXila. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "latexila-synctex.h"
+#include <glib/gi18n.h>
+#include "evince-gdbus-generated.h"
+#include "latexila-utils.h"
+
+static LatexilaSynctex *instance = NULL;
+
+struct _LatexilaSynctexPrivate
+{
+ /* PDF URI -> EvinceWindow object */
+ GHashTable *evince_windows;
+};
+
+typedef struct
+{
+ gint line;
+ gint column;
+} BufferPosition;
+
+typedef struct
+{
+ GtkTextBuffer *buffer;
+ GFile *buffer_location;
+ GFile *main_tex_file;
+ GFile *pdf_file;
+} TaskData;
+
+G_DEFINE_TYPE_WITH_PRIVATE (LatexilaSynctex, latexila_synctex, G_TYPE_OBJECT)
+
+static TaskData *
+task_data_new (void)
+{
+ return g_slice_new0 (TaskData);
+}
+
+static void
+task_data_free (TaskData *data)
+{
+ if (data != NULL)
+ {
+ g_clear_object (&data->buffer);
+ g_clear_object (&data->buffer_location);
+ g_clear_object (&data->main_tex_file);
+ g_clear_object (&data->pdf_file);
+
+ g_slice_free (TaskData, data);
+ }
+}
+
+static void
+latexila_synctex_dispose (GObject *object)
+{
+ LatexilaSynctex *synctex = LATEXILA_SYNCTEX (object);
+
+ if (synctex->priv->evince_windows != NULL)
+ {
+ g_hash_table_unref (synctex->priv->evince_windows);
+ synctex->priv->evince_windows = NULL;
+ }
+
+ G_OBJECT_CLASS (latexila_synctex_parent_class)->dispose (object);
+}
+
+static void
+latexila_synctex_finalize (GObject *object)
+{
+
+ G_OBJECT_CLASS (latexila_synctex_parent_class)->finalize (object);
+}
+
+static void
+latexila_synctex_class_init (LatexilaSynctexClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = latexila_synctex_dispose;
+ object_class->finalize = latexila_synctex_finalize;
+}
+
+static void
+latexila_synctex_init (LatexilaSynctex *synctex)
+{
+ synctex->priv = latexila_synctex_get_instance_private (synctex);
+
+ synctex->priv->evince_windows = g_hash_table_new_full (g_str_hash,
+ g_str_equal,
+ g_free,
+ g_object_unref);
+}
+
+/**
+ * latexila_synctex_get_instance:
+ *
+ * Returns: (transfer none): the #LatexilaSynctex singleton instance.
+ */
+LatexilaSynctex *
+latexila_synctex_get_instance (void)
+{
+ if (instance == NULL)
+ {
+ instance = g_object_new (LATEXILA_TYPE_SYNCTEX, NULL);
+ }
+
+ return instance;
+}
+
+static void
+show_warning (const gchar *message)
+{
+ GtkApplication *app;
+ GtkWindow *parent;
+ GtkWidget *dialog;
+
+ app = GTK_APPLICATION (g_application_get_default ());
+ parent = gtk_application_get_active_window (app);
+
+ dialog = gtk_message_dialog_new (parent,
+ GTK_DIALOG_DESTROY_WITH_PARENT,
+ GTK_MESSAGE_ERROR,
+ GTK_BUTTONS_OK,
+ "%s", _("Impossible to do the forward search."));
+
+ gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
+ "%s", message);
+
+ gtk_dialog_run (GTK_DIALOG (dialog));
+ gtk_widget_destroy (dialog);
+}
+
+static GFile *
+get_pdf_file (GFile *main_tex_file)
+{
+ gchar *tex_uri;
+ gchar *short_uri;
+ gchar *pdf_uri;
+ GFile *pdf_file;
+
+ tex_uri = g_file_get_uri (main_tex_file);
+ short_uri = latexila_utils_get_shortname (tex_uri);
+ pdf_uri = g_strdup_printf ("%s.pdf", short_uri);
+ pdf_file = g_file_new_for_uri (pdf_uri);
+
+ g_free (tex_uri);
+ g_free (short_uri);
+ g_free (pdf_uri);
+ return pdf_file;
+}
+
+static BufferPosition
+get_buffer_position (GtkTextBuffer *buffer)
+{
+ GtkTextIter iter;
+ BufferPosition pos;
+
+ gtk_text_buffer_get_iter_at_mark (buffer,
+ &iter,
+ gtk_text_buffer_get_insert (buffer));
+
+ pos.line = gtk_text_iter_get_line (&iter) + 1;
+
+ /* Ignore the column, it gives a better result. */
+ pos.column = -1;
+
+ return pos;
+}
+
+static void
+get_window_list_cb (EvinceApplication *app,
+ GAsyncResult *result,
+ GTask *task)
+{
+ gchar **window_list;
+ GError *error = NULL;
+
+ evince_application_call_get_window_list_finish (app, &window_list, result, &error);
+
+ if (error != NULL)
+ {
+ g_warning ("SyncTeX: can not get window list: %s", error->message);
+ g_task_return_boolean (task, FALSE);
+ g_object_unref (task);
+ g_error_free (error);
+ return;
+ }
+
+ /* TODO not finished */
+}
+
+static void
+application_proxy_cb (GObject *object,
+ GAsyncResult *result,
+ GTask *task)
+{
+ EvinceApplication *app;
+ GError *error = NULL;
+
+ app = evince_application_proxy_new_for_bus_finish (result, &error);
+
+ if (error != NULL)
+ {
+ g_warning ("SyncTeX: can not connect to evince application: %s", error->message);
+ g_task_return_boolean (task, FALSE);
+ g_object_unref (task);
+ g_error_free (error);
+ return;
+ }
+
+ evince_application_call_get_window_list (app,
+ NULL,
+ (GAsyncReadyCallback) get_window_list_cb,
+ task);
+}
+
+static void
+find_document_cb (EvinceDaemon *daemon,
+ GAsyncResult *result,
+ GTask *task)
+{
+ gchar *owner;
+ GError *error = NULL;
+
+ evince_daemon_call_find_document_finish (daemon, &owner, result, &error);
+ g_object_unref (daemon);
+
+ if (error != NULL)
+ {
+ g_warning ("SyncTeX: find document: %s", error->message);
+ g_task_return_boolean (task, FALSE);
+ g_object_unref (task);
+ g_error_free (error);
+ return;
+ }
+
+ evince_application_proxy_new_for_bus (G_BUS_TYPE_SESSION,
+ G_DBUS_PROXY_FLAGS_NONE,
+ owner,
+ "/org/gnome/evince/Evince",
+ NULL,
+ (GAsyncReadyCallback) application_proxy_cb,
+ task);
+
+ g_free (owner);
+}
+
+static void
+daemon_proxy_cb (GObject *object,
+ GAsyncResult *result,
+ GTask *task)
+{
+ EvinceDaemon *daemon;
+ GError *error = NULL;
+ const gchar *pdf_uri;
+
+ daemon = evince_daemon_proxy_new_for_bus_finish (result, &error);
+
+ if (error != NULL)
+ {
+ g_warning ("SyncTeX: can not connect to the evince daemon: %s", error->message);
+ g_task_return_boolean (task, FALSE);
+ g_object_unref (task);
+ g_error_free (error);
+ return;
+ }
+
+ pdf_uri = g_task_get_task_data (task);
+
+ evince_daemon_call_find_document (daemon, pdf_uri, TRUE, NULL,
+ (GAsyncReadyCallback) find_document_cb,
+ task);
+}
+
+/**
+ * latexila_synctex_connect_evince_window_async:
+ * @synctex: the #LatexilaSynctex instance.
+ * @pdf_uri: the PDF URI
+ * @callback: the callback to call when the operation is finished.
+ * @user_data: the data to pass to the callback function.
+ *
+ * Connects asynchronously the evince window for @pdf_uri. LaTeXila will then
+ * listen the signals emitted by the evince window when the user wants to switch
+ * from the PDF to the corresponding *.tex file.
+ *
+ * The callback will be called when the operation is finished. You can then call
+ * latexila_synctex_connect_evince_window_finish().
+ */
+void
+latexila_synctex_connect_evince_window_async (LatexilaSynctex *synctex,
+ const gchar *pdf_uri,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GTask *task;
+
+ g_return_if_fail (LATEXILA_IS_SYNCTEX (synctex));
+ g_return_if_fail (pdf_uri != NULL);
+
+ task = g_task_new (synctex, NULL, callback, user_data);
+
+ if (g_hash_table_contains (synctex->priv->evince_windows, pdf_uri))
+ {
+ g_task_return_boolean (task, TRUE);
+ g_object_unref (task);
+ return;
+ }
+
+ g_task_set_task_data (task, g_strdup (pdf_uri), g_free);
+
+ evince_daemon_proxy_new_for_bus (G_BUS_TYPE_SESSION,
+ G_DBUS_PROXY_FLAGS_NONE,
+ "org.gnome.evince.Daemon",
+ "/org/gnome/evince/Daemon",
+ NULL,
+ (GAsyncReadyCallback) daemon_proxy_cb,
+ task);
+}
+
+/**
+ * latexila_synctex_connect_evince_window_finish:
+ * @synctex: the #LatexilaSynctex instance.
+ * @result: a #GAsyncResult.
+ *
+ * Finishes the operation started with
+ * latexila_synctex_connect_evince_window_async().
+ */
+void
+latexila_synctex_connect_evince_window_finish (LatexilaSynctex *synctex,
+ GAsyncResult *result)
+{
+ g_return_if_fail (g_task_is_valid (result, synctex));
+
+ g_task_propagate_boolean (G_TASK (result), NULL);
+}
+
+/**
+ * latexila_synctex_connect_evince_window:
+ * @synctex: the #LatexilaSynctex instance.
+ * @pdf_uri: the PDF URI.
+ *
+ * Simple version of latexila_synctex_connect_evince_window_async().
+ * This function is also asynchronous, but without callback.
+ */
+void
+latexila_synctex_connect_evince_window (LatexilaSynctex *synctex,
+ const gchar *pdf_uri)
+{
+ latexila_synctex_connect_evince_window_async (synctex,
+ pdf_uri,
+ (GAsyncReadyCallback)
latexila_synctex_connect_evince_window_finish,
+ NULL);
+}
+
+static void
+sync_view_cb (EvinceWindow *evince_window,
+ GAsyncResult *result,
+ TaskData *data)
+{
+ GError *error = NULL;
+
+ evince_window_call_sync_view_finish (evince_window, result, &error);
+
+ if (error != NULL)
+ {
+ g_warning ("SyncTeX: can not sync view: %s", error->message);
+ g_error_free (error);
+ }
+
+ /* latexila_synctex_forward_search() finished! */
+ task_data_free (data);
+}
+
+static void
+connect_evince_window_cb (LatexilaSynctex *synctex,
+ GAsyncResult *result,
+ TaskData *data)
+{
+ gchar *pdf_uri;
+ EvinceWindow *evince_window;
+ gchar *buffer_path;
+ BufferPosition buffer_pos;
+ GVariant *pos;
+
+ latexila_synctex_connect_evince_window_finish (synctex, result);
+
+ pdf_uri = g_file_get_uri (data->pdf_file);
+
+ evince_window = g_hash_table_lookup (synctex->priv->evince_windows, pdf_uri);
+ g_free (pdf_uri);
+
+ if (evince_window == NULL)
+ {
+ show_warning (_("Can not communicate with evince."));
+ task_data_free (data);
+ return;
+ }
+
+ buffer_path = g_file_get_path (data->buffer_location);
+ buffer_pos = get_buffer_position (data->buffer);
+
+ pos = g_variant_new ("(ii)", buffer_pos.line, buffer_pos.column);
+
+ evince_window_call_sync_view (evince_window,
+ buffer_path,
+ pos,
+ GDK_CURRENT_TIME,
+ NULL,
+ (GAsyncReadyCallback) sync_view_cb,
+ data);
+
+ g_free (buffer_path);
+}
+
+static void
+synctex_file_query_exists_cb (GFile *synctex_file,
+ GAsyncResult *result,
+ TaskData *data)
+{
+ gboolean synctex_file_exists;
+ gchar *pdf_uri;
+
+ synctex_file_exists = latexila_utils_file_query_exists_finish (synctex_file, result);
+
+ if (!synctex_file_exists)
+ {
+ gchar *basename = g_file_get_basename (synctex_file);
+ gchar *message = g_strdup_printf (_("The file \"%s\" doesn't exist."), basename);
+
+ show_warning (message);
+
+ g_free (basename);
+ g_free (message);
+ g_object_unref (synctex_file);
+ task_data_free (data);
+ return;
+ }
+
+ pdf_uri = g_file_get_uri (data->pdf_file);
+
+ latexila_synctex_connect_evince_window_async (instance,
+ pdf_uri,
+ (GAsyncReadyCallback) connect_evince_window_cb,
+ data);
+
+ g_object_unref (synctex_file);
+ g_free (pdf_uri);
+}
+
+static void
+pdf_file_query_exists_cb (GFile *pdf_file,
+ GAsyncResult *result,
+ TaskData *data)
+{
+ gboolean pdf_file_exists;
+ gchar *pdf_uri;
+ gchar *short_uri;
+ gchar *synctex_uri;
+ GFile *synctex_file;
+
+ pdf_file_exists = latexila_utils_file_query_exists_finish (pdf_file, result);
+
+ if (!pdf_file_exists)
+ {
+ show_warning (_("The PDF file doesn't exist."));
+ task_data_free (data);
+ return;
+ }
+
+ pdf_uri = g_file_get_uri (pdf_file);
+ short_uri = latexila_utils_get_shortname (pdf_uri);
+ synctex_uri = g_strdup_printf ("%s.synctex.gz", short_uri);
+ synctex_file = g_file_new_for_uri (synctex_uri);
+ g_free (synctex_uri);
+ g_free (short_uri);
+ g_free (pdf_uri);
+
+ latexila_utils_file_query_exists_async (synctex_file,
+ NULL,
+ (GAsyncReadyCallback) synctex_file_query_exists_cb,
+ data);
+}
+
+/**
+ * latexila_synctex_forward_search:
+ * @synctex: the #LatexilaSynctex instance.
+ * @buffer: a #GtkTextBuffer.
+ * @buffer_location: the *.tex file of @buffer.
+ * @main_tex_file: the main *.tex file of @buffer.
+ *
+ * Does a forward search, i.e. switch from the *.tex file to the PDF file at the
+ * same position as the cursor position in @buffer.
+ */
+void
+latexila_synctex_forward_search (LatexilaSynctex *synctex,
+ GtkTextBuffer *buffer,
+ GFile *buffer_location,
+ GFile *main_tex_file)
+{
+ TaskData *data;
+
+ g_return_if_fail (LATEXILA_IS_SYNCTEX (synctex));
+ g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
+ g_return_if_fail (buffer_location == NULL || G_IS_FILE (buffer_location));
+ g_return_if_fail (main_tex_file == NULL || G_IS_FILE (main_tex_file));
+
+ if (buffer_location == NULL)
+ {
+ show_warning (_("The document is not saved."));
+ return;
+ }
+
+ g_return_if_fail (G_IS_FILE (main_tex_file));
+
+ data = task_data_new ();
+ data->buffer = g_object_ref (buffer);
+ data->buffer_location = g_object_ref (buffer_location);
+ data->main_tex_file = g_object_ref (main_tex_file);
+ data->pdf_file = get_pdf_file (main_tex_file);
+
+ latexila_utils_file_query_exists_async (data->pdf_file,
+ NULL,
+ (GAsyncReadyCallback) pdf_file_query_exists_cb,
+ data);
+}
diff --git a/src/liblatexila/latexila-synctex.h b/src/liblatexila/latexila-synctex.h
new file mode 100644
index 0000000..3b20130
--- /dev/null
+++ b/src/liblatexila/latexila-synctex.h
@@ -0,0 +1,72 @@
+/*
+ * This file is part of LaTeXila.
+ *
+ * Copyright (C) 2014 - Sébastien Wilmet <swilmet gnome org>
+ *
+ * LaTeXila 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.
+ *
+ * LaTeXila 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 LaTeXila. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __LATEXILA_SYNCTEX_H__
+#define __LATEXILA_SYNCTEX_H__
+
+#include "latexila-types.h"
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define LATEXILA_TYPE_SYNCTEX (latexila_synctex_get_type ())
+#define LATEXILA_SYNCTEX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LATEXILA_TYPE_SYNCTEX,
LatexilaSynctex))
+#define LATEXILA_SYNCTEX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), LATEXILA_TYPE_SYNCTEX,
LatexilaSynctexClass))
+#define LATEXILA_IS_SYNCTEX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LATEXILA_TYPE_SYNCTEX))
+#define LATEXILA_IS_SYNCTEX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), LATEXILA_TYPE_SYNCTEX))
+#define LATEXILA_SYNCTEX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), LATEXILA_TYPE_SYNCTEX,
LatexilaSynctexClass))
+
+typedef struct _LatexilaSynctexClass LatexilaSynctexClass;
+typedef struct _LatexilaSynctexPrivate LatexilaSynctexPrivate;
+
+struct _LatexilaSynctex
+{
+ GObject parent;
+
+ LatexilaSynctexPrivate *priv;
+};
+
+struct _LatexilaSynctexClass
+{
+ GObjectClass parent_class;
+};
+
+GType latexila_synctex_get_type (void) G_GNUC_CONST;
+
+LatexilaSynctex * latexila_synctex_get_instance (void);
+
+void latexila_synctex_connect_evince_window_async (LatexilaSynctex *synctex,
+ const gchar *pdf_uri,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+
+void latexila_synctex_connect_evince_window_finish (LatexilaSynctex *synctex,
+ GAsyncResult *result);
+
+void latexila_synctex_connect_evince_window (LatexilaSynctex *synctex,
+ const gchar *pdf_uri);
+
+void latexila_synctex_forward_search (LatexilaSynctex *synctex,
+ GtkTextBuffer *buffer,
+ GFile *buffer_location,
+ GFile *main_tex_file);
+
+G_END_DECLS
+
+#endif /* __LATEXILA_SYNCTEX_H__ */
diff --git a/src/liblatexila/latexila-types.h b/src/liblatexila/latexila-types.h
index 9ca5d99..1dd9da4 100644
--- a/src/liblatexila/latexila-types.h
+++ b/src/liblatexila/latexila-types.h
@@ -32,6 +32,7 @@ typedef struct _LatexilaBuildToolsPersonal LatexilaBuildToolsPersonal;
typedef struct _LatexilaBuildView LatexilaBuildView;
typedef struct _LatexilaPostProcessor LatexilaPostProcessor;
typedef struct _LatexilaPostProcessorAllOutput LatexilaPostProcessorAllOutput;
+typedef struct _LatexilaSynctex LatexilaSynctex;
G_END_DECLS
diff --git a/src/liblatexila/latexila-utils.c b/src/liblatexila/latexila-utils.c
index 8c06b8a..00f4bcf 100644
--- a/src/liblatexila/latexila-utils.c
+++ b/src/liblatexila/latexila-utils.c
@@ -237,3 +237,56 @@ latexila_utils_str_replace (const gchar *string,
g_strfreev (chunks);
return ret;
}
+
+/**
+ * latexila_utils_file_query_exists_async:
+ * @file: a #GFile.
+ * @cancellable: a #GCancellable.
+ * @callback: the callback to call when the operation is finished.
+ * @user_data: the data to pass to the callback function.
+ *
+ * The asynchronous version of g_file_query_exists(). When the operation is
+ * finished, @callback will be called. You can then call
+ * latexila_utils_file_query_exists_finish() to get the result of the operation.
+ */
+void
+latexila_utils_file_query_exists_async (GFile *file,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ g_file_query_info_async (file,
+ G_FILE_ATTRIBUTE_STANDARD_TYPE,
+ G_FILE_QUERY_INFO_NONE,
+ G_PRIORITY_DEFAULT,
+ cancellable,
+ callback,
+ user_data);
+}
+
+/**
+ * latexila_utils_file_query_exists_finish:
+ * @file: a #GFile.
+ * @result: a #GAsyncResult.
+ *
+ * Finishes the operation started with latexila_utils_file_query_exists_async().
+ * There is no output #GError parameter, so you should check if the operation
+ * has been cancelled (in which case %FALSE will be returned).
+ *
+ * Returns: %TRUE if the file exists and the operation hasn't been cancelled,
+ * %FALSE otherwise.
+ */
+gboolean
+latexila_utils_file_query_exists_finish (GFile *file,
+ GAsyncResult *result)
+{
+ GFileInfo *info = g_file_query_info_finish (file, result, NULL);
+
+ if (info != NULL)
+ {
+ g_object_unref (info);
+ return TRUE;
+ }
+
+ return FALSE;
+}
diff --git a/src/liblatexila/latexila-utils.h b/src/liblatexila/latexila-utils.h
index 852a6f0..c1b44a9 100644
--- a/src/liblatexila/latexila-utils.h
+++ b/src/liblatexila/latexila-utils.h
@@ -20,7 +20,7 @@
#ifndef __LATEXILA_UTILS_H__
#define __LATEXILA_UTILS_H__
-#include <glib.h>
+#include <gio/gio.h>
G_BEGIN_DECLS
@@ -34,6 +34,14 @@ gchar * latexila_utils_str_replace (const gchar *st
const gchar *search,
const gchar *replacement);
+void latexila_utils_file_query_exists_async (GFile *file,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+
+gboolean latexila_utils_file_query_exists_finish (GFile *file,
+ GAsyncResult *result);
+
G_END_DECLS
#endif /* __LATEXILA_UTILS_H__ */
diff --git a/src/liblatexila/latexila.h b/src/liblatexila/latexila.h
index 0d799f0..a200ab9 100644
--- a/src/liblatexila/latexila.h
+++ b/src/liblatexila/latexila.h
@@ -31,6 +31,7 @@
#include "latexila-build-view.h"
#include "latexila-post-processor.h"
#include "latexila-post-processor-all-output.h"
+#include "latexila-synctex.h"
#include "latexila-utils.h"
#endif /* __LATEXILA_H__ */
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