Imported prefer-plain plugin.

2004-10-20  Not Zed  <NotZed@Ximian.com>

        * Imported prefer-plain plugin.

svn path=/trunk/; revision=27645

4 files changed, 239 insertions, 0 deletions

diff --git a/plugins/prefer-plain/ChangeLog b/plugins/prefer-plain/ChangeLog
new file mode 100644
index 0000000000..dfacee6e46
--- /dev/null
+++ b/plugins/prefer-plain/ChangeLog
@@ -0,0 +1,4 @@
+2004-10-20  Not Zed  <NotZed@Ximian.com>
+
+	* Imported prefer-plain plugin.
+
diff --git a/plugins/prefer-plain/Makefile.am b/plugins/prefer-plain/Makefile.am
new file mode 100644
index 0000000000..c71bcf65fb
--- /dev/null
+++ b/plugins/prefer-plain/Makefile.am
@@ -0,0 +1,11 @@
+INCLUDES =						\
+	-I$(top_srcdir)					\
+	$(EVOLUTION_MAIL_CFLAGS)
+
+@EVO_PLUGIN_RULE@
+
+plugin_DATA = org-gnome-prefer-plain.eplug
+plugin_LTLIBRARIES = liborg-gnome-prefer-plain.la
+
+liborg_gnome_prefer_plain_la_SOURCES = prefer-plain.c
+liborg_gnome_prefer_plain_la_LDFLAGS = -module -avoid-version
diff --git a/plugins/prefer-plain/org-gnome-prefer-plain.eplug.in b/plugins/prefer-plain/org-gnome-prefer-plain.eplug.in
new file mode 100644
index 0000000000..06218f7972
--- /dev/null
+++ b/plugins/prefer-plain/org-gnome-prefer-plain.eplug.in
@@ -0,0 +1,33 @@
+<?xml version="1.0"?>
+<e-plugin-list>
+  <e-plugin
+    type="shlib"
+    id="org.gnome.evolution.plugin.preferPlain"
+    location="@PLUGINDIR@/liborg-gnome-prefer-plain.so"
+    name="Prefer plain-text plugin"
+    description="A test plugin which demonstrates a formatter plugin which lets you choose to disable HTML mails">
+
+    <!-- hook into the 'html mail' preferences page -->
+    <hook class="org.gnome.evolution.mail.config:1.0">
+      <group target="prefs" id="org.gnome.evolution.mail.prefs">
+	<!-- we could also just insert our own items from a section factory, -->
+	<!-- but then we also need to create our own section frame -->
+	<item type="section_table" path="10.html/80.mode" label="Plain Text Mode"/>
+	<item type="item_table" path="10.html/80.mode/00.mode" factory="org_gnome_prefer_plain_config_mode"/>
+      </group>
+    </hook>
+
+    <hook class="org.gnome.evolution.mail.format:1.0">
+      <!-- need to override all formatters that override this type -->
+      <group id="EMFormatHTMLDisplay">
+	<item mime_type="multipart/alternative" format="org_gnome_prefer_plain_multipart_alternative"/>
+	<item mime_type="text/html" format="org_gnome_prefer_plain_text_html"/>
+      </group>
+      <group id="EMFormat">
+	<item mime_type="multipart/alternative" format="org_gnome_prefer_plain_multipart_alternative"/>
+	<item mime_type="text/html" format="org_gnome_prefer_plain_text_html"/>
+      </group>
+    </hook>
+
+  </e-plugin>
+</e-plugin-list>
diff --git a/plugins/prefer-plain/prefer-plain.c b/plugins/prefer-plain/prefer-plain.c
new file mode 100644
index 0000000000..2a105c656b
--- /dev/null
+++ b/plugins/prefer-plain/prefer-plain.c
@@ -0,0 +1,191 @@
+
+/* Copyright (C) 2004 Michael Zucchi */
+
+/* This file is licensed under the GNU GPL v2 or later */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <glib/gi18n-lib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "camel/camel-multipart.h"
+#include "camel/camel-mime-part.h"
+#include "mail/em-format-hook.h"
+#include "mail/em-format.h"
+
+#include <gconf/gconf-client.h>
+#include <gtk/gtkcombobox.h>
+#include <gtk/gtkliststore.h>
+#include <gtk/gtkcellrenderertext.h>
+#include <gtk/gtkcelllayout.h>
+#include <gtk/gtktable.h>
+#include <gtk/gtklabel.h>
+#include "mail/em-config.h"
+
+void org_gnome_prefer_plain_multipart_alternative(void *ep, EMFormatHookTarget *t);
+void org_gnome_prefer_plain_text_html(void *ep, EMFormatHookTarget *t);
+GtkWidget *org_gnome_prefer_plain_config_mode(struct _EPlugin *epl, struct _EConfigHookItemFactoryData *data);
+
+enum {
+	EPP_NORMAL,
+	EPP_PREFER,
+	EPP_TEXT
+};
+
+static GConfClient *epp_gconf;
+static int epp_mode;
+
+void
+org_gnome_prefer_plain_text_html(void *ep, EMFormatHookTarget *t)
+{
+	/* In text-only mode, all html output is suppressed */
+	if (epp_mode != EPP_TEXT)
+		t->item->handler.old->handler(t->format, t->stream, t->part, t->item->handler.old);
+	else
+		em_format_part_as(t->format, t->stream, t->part, NULL);
+}
+
+void
+org_gnome_prefer_plain_multipart_alternative(void *ep, EMFormatHookTarget *t)
+{
+	CamelMultipart *mp = (CamelMultipart *)camel_medium_get_content_object((CamelMedium *)t->part);
+	CamelMimePart *part, *display_part = NULL;
+	int i, nparts, partidlen, displayid = 0;
+
+	if (epp_mode == EPP_NORMAL) {
+		t->item->handler.old->handler(t->format, t->stream, t->part, t->item->handler.old);
+		return;
+	} else if (!CAMEL_IS_MULTIPART(mp)) {
+		em_format_format_source(t->format, t->stream, t->part);
+		return;
+	}
+	
+	nparts = camel_multipart_get_number(mp);	
+	for (i=0; i<nparts; i++) {
+		part = camel_multipart_get_part(mp, i);
+		if (camel_content_type_is(camel_mime_part_get_content_type(part), "text", "plain")) {
+			displayid = i;
+			display_part = part;
+			break;
+		}
+	}
+
+	/* this part-id stuff is poking private data, needs api */
+	partidlen = t->format->part_id->len;
+
+	/* if we found a text part, show it */
+	if (display_part) {
+		g_string_append_printf(t->format->part_id, ".alternative.%d", displayid);
+		em_format_part_as(t->format, t->stream, display_part, "text/plain");
+		g_string_truncate(t->format->part_id, partidlen);
+	}
+
+	/* all other parts are attachments */
+	for (i=0;i<nparts; i++) {
+		part = camel_multipart_get_part(mp, i);
+		if (part != display_part) {
+			g_string_append_printf(t->format->part_id, ".alternative.%d", i);
+
+			em_format_part_as(t->format, t->stream, t->part, NULL);
+
+			g_string_truncate(t->format->part_id, partidlen);
+		}
+	}
+
+	g_string_truncate(t->format->part_id, partidlen);
+}
+
+static struct {
+	const char *label;
+	const char *key;
+} epp_options[] = {
+	{ N_("Show HTML if present"), "normal" },
+	{ N_("Prefer PLAIN"), "prefer_plain" },
+	{ N_("Only ever show PLAIN"), "only_plain" },
+};
+
+static void
+epp_mode_changed(GtkComboBox *dropdown, void *dummy)
+{
+	epp_mode = gtk_combo_box_get_active(dropdown);
+	if (epp_mode > 2)
+		epp_mode = 0;
+
+	gconf_client_set_string(epp_gconf, "/apps/evolution/eplugin/prefer_plain/mode", epp_options[epp_mode].key, NULL);
+}
+
+GtkWidget *
+org_gnome_prefer_plain_config_mode(struct _EPlugin *epl, struct _EConfigHookItemFactoryData *data)
+{
+	/*EMConfigTargetPrefs *ep = (EMConfigTargetPrefs *)data->target;*/
+	GtkComboBox *dropdown;
+	GtkCellRenderer *cell;
+	GtkListStore *store;
+	GtkWidget *w;
+	int i;
+	GtkTreeIter iter;
+
+	if (data->old)
+		return data->old;
+
+	dropdown = (GtkComboBox *)gtk_combo_box_new();
+	cell = gtk_cell_renderer_text_new();
+	store = gtk_list_store_new(1, G_TYPE_STRING);
+	for (i=0;i<sizeof(epp_options)/sizeof(epp_options[0]);i++) {
+		gtk_list_store_append(store, &iter);
+		gtk_list_store_set(store, &iter, 0, _(epp_options[i].label), -1);
+	}
+
+	gtk_cell_layout_pack_start((GtkCellLayout *)dropdown, cell, TRUE);
+	gtk_cell_layout_set_attributes((GtkCellLayout *)dropdown, cell, "text", 0, NULL);
+	gtk_combo_box_set_model(dropdown, (GtkTreeModel *)store);
+	/*gtk_combo_box_set_active(dropdown, -1);*/
+	gtk_combo_box_set_active(dropdown, epp_mode);
+	g_signal_connect(dropdown, "changed", G_CALLBACK(epp_mode_changed), NULL);
+	gtk_widget_show((GtkWidget *)dropdown);
+
+	w = gtk_label_new(_("HTML Mode"));
+	gtk_widget_show(w);
+
+	i = ((GtkTable *)data->parent)->nrows;
+	gtk_table_attach((GtkTable *)data->parent, w, 0, 1, i, i+1, 0, 0, 0, 0);
+	gtk_table_attach((GtkTable *)data->parent, (GtkWidget *)dropdown, 1, 2, i, i+1, GTK_FILL|GTK_EXPAND, 0, 0, 0);
+
+	/* since this isnt dynamic, we don't need to track each item */
+
+	return (GtkWidget *)dropdown;
+}
+
+int org_gnome_prefer_plain_enable(EPluginLib *ep, int enable);
+
+int
+org_gnome_prefer_plain_enable(EPluginLib *ep, int enable)
+{
+	char *key;
+	int i;
+
+	if (enable) {
+		epp_gconf = gconf_client_get_default();
+		key = gconf_client_get_string(epp_gconf, "/apps/evolution/eplugin/prefer_plain/mode", NULL);
+		if (key) {
+			for (i=0;i<sizeof(epp_options)/sizeof(epp_options[0]);i++) {
+				if (!strcmp(epp_options[i].key, key)) {
+					epp_mode = i;
+					break;
+				}
+			}
+		} else {
+			epp_mode = 0;
+		}
+	} else {
+		if (epp_gconf) {
+			g_object_unref(epp_gconf);
+			epp_gconf = 0;
+		}
+	}
+
+	return 0;
+}