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Diffstat (limited to 'gedit/gedit-document-output-stream.c')
| -rwxr-xr-x | gedit/gedit-document-output-stream.c | 391 |
1 files changed, 0 insertions, 391 deletions
diff --git a/gedit/gedit-document-output-stream.c b/gedit/gedit-document-output-stream.c deleted file mode 100755 index e1ef5af5..00000000 --- a/gedit/gedit-document-output-stream.c +++ /dev/null @@ -1,391 +0,0 @@ -/* - * gedit-document-output-stream.c - * This file is part of gedit - * - * Copyright (C) 2010 - Ignacio Casal Quinteiro - * - * gedit 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 2 of the License, or - * (at your option) any later version. - * - * gedit 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 gedit; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston, MA 02110-1301 USA - */ - -#include "config.h" - -#include <string.h> -#include <glib.h> -#include <glib/gi18n.h> -#include <gio/gio.h> -#include "gedit-document-output-stream.h" - -/* NOTE: never use async methods on this stream, the stream is just - * a wrapper around GtkTextBuffer api so that we can use GIO Stream - * methods, but the undelying code operates on a GtkTextBuffer, so - * there is no I/O involved and should be accessed only by the main - * thread */ - -#define GEDIT_DOCUMENT_OUTPUT_STREAM_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE((object),\ - GEDIT_TYPE_DOCUMENT_OUTPUT_STREAM,\ - GeditDocumentOutputStreamPrivate)) - -#define MAX_UNICHAR_LEN 6 - -struct _GeditDocumentOutputStreamPrivate -{ - GeditDocument *doc; - GtkTextIter pos; - - gchar *buffer; - gsize buflen; - - guint is_initialized : 1; - guint is_closed : 1; -}; - -enum -{ - PROP_0, - PROP_DOCUMENT -}; - -G_DEFINE_TYPE (GeditDocumentOutputStream, gedit_document_output_stream, G_TYPE_OUTPUT_STREAM) - -static gssize gedit_document_output_stream_write (GOutputStream *stream, - const void *buffer, - gsize count, - GCancellable *cancellable, - GError **error); - -static gboolean gedit_document_output_stream_close (GOutputStream *stream, - GCancellable *cancellable, - GError **error); - -static void -gedit_document_output_stream_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec) -{ - GeditDocumentOutputStream *stream = GEDIT_DOCUMENT_OUTPUT_STREAM (object); - - switch (prop_id) - { - case PROP_DOCUMENT: - stream->priv->doc = GEDIT_DOCUMENT (g_value_get_object (value)); - break; - - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gedit_document_output_stream_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - GeditDocumentOutputStream *stream = GEDIT_DOCUMENT_OUTPUT_STREAM (object); - - switch (prop_id) - { - case PROP_DOCUMENT: - g_value_set_object (value, stream->priv->doc); - break; - - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gedit_document_output_stream_finalize (GObject *object) -{ - GeditDocumentOutputStream *stream = GEDIT_DOCUMENT_OUTPUT_STREAM (object); - - g_free (stream->priv->buffer); - - G_OBJECT_CLASS (gedit_document_output_stream_parent_class)->finalize (object); -} - -static void -gedit_document_output_stream_constructed (GObject *object) -{ - GeditDocumentOutputStream *stream = GEDIT_DOCUMENT_OUTPUT_STREAM (object); - - if (!stream->priv->doc) - { - g_critical ("This should never happen, a problem happened constructing the Document Output Stream!"); - return; - } - - /* Init the undoable action */ - gtk_source_buffer_begin_not_undoable_action (GTK_SOURCE_BUFFER (stream->priv->doc)); - /* clear the buffer */ - gtk_text_buffer_set_text (GTK_TEXT_BUFFER (stream->priv->doc), - "", 0); - gtk_text_buffer_set_modified (GTK_TEXT_BUFFER (stream->priv->doc), - FALSE); - - gtk_source_buffer_end_not_undoable_action (GTK_SOURCE_BUFFER (stream->priv->doc)); -} - -static void -gedit_document_output_stream_class_init (GeditDocumentOutputStreamClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - GOutputStreamClass *stream_class = G_OUTPUT_STREAM_CLASS (klass); - - object_class->get_property = gedit_document_output_stream_get_property; - object_class->set_property = gedit_document_output_stream_set_property; - object_class->finalize = gedit_document_output_stream_finalize; - object_class->constructed = gedit_document_output_stream_constructed; - - stream_class->write_fn = gedit_document_output_stream_write; - stream_class->close_fn = gedit_document_output_stream_close; - - g_object_class_install_property (object_class, - PROP_DOCUMENT, - g_param_spec_object ("document", - "Document", - "The document which is written", - GEDIT_TYPE_DOCUMENT, - G_PARAM_READWRITE | - G_PARAM_CONSTRUCT_ONLY)); - - g_type_class_add_private (object_class, sizeof (GeditDocumentOutputStreamPrivate)); -} - -static void -gedit_document_output_stream_init (GeditDocumentOutputStream *stream) -{ - stream->priv = GEDIT_DOCUMENT_OUTPUT_STREAM_GET_PRIVATE (stream); - - stream->priv->buffer = NULL; - stream->priv->buflen = 0; - - stream->priv->is_initialized = FALSE; - stream->priv->is_closed = FALSE; -} - -static GeditDocumentNewlineType -get_newline_type (GtkTextIter *end) -{ - GeditDocumentNewlineType res; - GtkTextIter copy; - gunichar c; - - copy = *end; - c = gtk_text_iter_get_char (©); - - if (g_unichar_break_type (c) == G_UNICODE_BREAK_CARRIAGE_RETURN) - { - if (gtk_text_iter_forward_char (©) && - g_unichar_break_type (gtk_text_iter_get_char (©)) == G_UNICODE_BREAK_LINE_FEED) - { - res = GEDIT_DOCUMENT_NEWLINE_TYPE_CR_LF; - } - else - { - res = GEDIT_DOCUMENT_NEWLINE_TYPE_CR; - } - } - else - { - res = GEDIT_DOCUMENT_NEWLINE_TYPE_LF; - } - - return res; -} - -GOutputStream * -gedit_document_output_stream_new (GeditDocument *doc) -{ - return G_OUTPUT_STREAM (g_object_new (GEDIT_TYPE_DOCUMENT_OUTPUT_STREAM, - "document", doc, NULL)); -} - -GeditDocumentNewlineType -gedit_document_output_stream_detect_newline_type (GeditDocumentOutputStream *stream) -{ - GeditDocumentNewlineType type; - GtkTextIter iter; - - g_return_val_if_fail (GEDIT_IS_DOCUMENT_OUTPUT_STREAM (stream), - GEDIT_DOCUMENT_NEWLINE_TYPE_DEFAULT); - - type = GEDIT_DOCUMENT_NEWLINE_TYPE_DEFAULT; - - gtk_text_buffer_get_start_iter (GTK_TEXT_BUFFER (stream->priv->doc), - &iter); - - if (gtk_text_iter_ends_line (&iter) || gtk_text_iter_forward_to_line_end (&iter)) - { - type = get_newline_type (&iter); - } - - return type; -} - -/* If the last char is a newline, remove it from the buffer (otherwise - GtkTextView shows it as an empty line). See bug #324942. */ -static void -remove_ending_newline (GeditDocumentOutputStream *stream) -{ - GtkTextIter end; - GtkTextIter start; - - gtk_text_buffer_get_end_iter (GTK_TEXT_BUFFER (stream->priv->doc), &end); - start = end; - - gtk_text_iter_set_line_offset (&start, 0); - - if (gtk_text_iter_ends_line (&start) && - gtk_text_iter_backward_line (&start)) - { - if (!gtk_text_iter_ends_line (&start)) - { - gtk_text_iter_forward_to_line_end (&start); - } - - /* Delete the empty line which is from 'start' to 'end' */ - gtk_text_buffer_delete (GTK_TEXT_BUFFER (stream->priv->doc), - &start, - &end); - } -} - -static void -end_append_text_to_document (GeditDocumentOutputStream *stream) -{ - remove_ending_newline (stream); - - gtk_text_buffer_set_modified (GTK_TEXT_BUFFER (stream->priv->doc), - FALSE); - - gtk_source_buffer_end_not_undoable_action (GTK_SOURCE_BUFFER (stream->priv->doc)); -} - -static gssize -gedit_document_output_stream_write (GOutputStream *stream, - const void *buffer, - gsize count, - GCancellable *cancellable, - GError **error) -{ - GeditDocumentOutputStream *ostream; - gchar *text; - gsize len; - gboolean freetext = FALSE; - const gchar *end; - gsize nvalid; - gboolean valid; - - if (g_cancellable_set_error_if_cancelled (cancellable, error)) - return -1; - - ostream = GEDIT_DOCUMENT_OUTPUT_STREAM (stream); - - if (!ostream->priv->is_initialized) - { - /* Init the undoable action */ - gtk_source_buffer_begin_not_undoable_action (GTK_SOURCE_BUFFER (ostream->priv->doc)); - - gtk_text_buffer_get_start_iter (GTK_TEXT_BUFFER (ostream->priv->doc), - &ostream->priv->pos); - ostream->priv->is_initialized = TRUE; - } - - if (ostream->priv->buflen > 0) - { - len = ostream->priv->buflen + count; - text = g_new (gchar , len + 1); - memcpy (text, ostream->priv->buffer, ostream->priv->buflen); - memcpy (text + ostream->priv->buflen, buffer, count); - text[len] = '\0'; - g_free (ostream->priv->buffer); - ostream->priv->buffer = NULL; - ostream->priv->buflen = 0; - freetext = TRUE; - } - else - { - text = (gchar *) buffer; - len = count; - } - - /* validate */ - valid = g_utf8_validate (text, len, &end); - nvalid = end - text; - - if (!valid) - { - gsize remainder; - - remainder = len - nvalid; - - if ((remainder < MAX_UNICHAR_LEN) && - (g_utf8_get_char_validated (text + nvalid, remainder) == (gunichar)-2)) - { - ostream->priv->buffer = g_strndup (end, remainder); - ostream->priv->buflen = remainder; - len -= remainder; - } - else - { - /* TODO: we cuould escape invalid text and tag it in red - * and make the doc readonly. - */ - g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, - _("Invalid UTF-8 sequence in input")); - - if (freetext) - g_free (text); - - return -1; - } - } - - gtk_text_buffer_insert (GTK_TEXT_BUFFER (ostream->priv->doc), - &ostream->priv->pos, text, len); - - if (freetext) - g_free (text); - - return count; -} - -static gboolean -gedit_document_output_stream_close (GOutputStream *stream, - GCancellable *cancellable, - GError **error) -{ - GeditDocumentOutputStream *ostream = GEDIT_DOCUMENT_OUTPUT_STREAM (stream); - - if (!ostream->priv->is_closed && ostream->priv->is_initialized) - { - end_append_text_to_document (ostream); - ostream->priv->is_closed = TRUE; - } - - if (ostream->priv->buflen > 0) - { - g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, - _("Incomplete UTF-8 sequence in input")); - return FALSE; - } - - return TRUE; -} |