diff options
Diffstat (limited to 'mail/e-mail-display.c')
| -rw-r--r-- | mail/e-mail-display.c | 627 |
1 files changed, 627 insertions, 0 deletions
diff --git a/mail/e-mail-display.c b/mail/e-mail-display.c new file mode 100644 index 0000000000..95073305af --- /dev/null +++ b/mail/e-mail-display.c @@ -0,0 +1,627 @@ +/* + * e-mail-display.c + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) version 3. + * + * 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with the program; if not, see <http://www.gnu.org/licenses/> + * + * + * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) + * + */ + +#include "e-mail-display.h" + +#include <string.h> +#include <glib/gi18n.h> + +#include "e-util/e-util.h" + +#define E_MAIL_DISPLAY_GET_PRIVATE(obj) \ + (G_TYPE_INSTANCE_GET_PRIVATE \ + ((obj), E_TYPE_MAIL_DISPLAY, EMailDisplayPrivate)) + +struct _EMailDisplayPrivate { + EMFormatHTML *formatter; +}; + +enum { + PROP_0, + PROP_ANIMATE, + PROP_CARET_MODE, + PROP_FORMATTER +}; + +enum { + POPUP_EVENT, + STATUS_MESSAGE, + LAST_SIGNAL +}; + +static gpointer parent_class; +static guint signals[LAST_SIGNAL]; + +static gboolean +mail_display_emit_popup_event (EMailDisplay *display, + GdkEventButton *event, + const gchar *uri, + EMFormatPURI *puri) +{ + CamelMimePart *mime_part; + gboolean stop_handlers = FALSE; + + mime_part = (puri != NULL) ? puri->part : NULL; + + g_signal_emit ( + display, signals[POPUP_EVENT], 0, + event, uri, mime_part, &stop_handlers); + + return stop_handlers; +} + +static void +mail_display_emit_status_message (EMailDisplay *display, + const gchar *status_message) +{ + g_signal_emit (display, signals[STATUS_MESSAGE], 0, status_message); +} + +static void +mail_display_get_uri_puri (EMailDisplay *display, + GdkEventButton *event, + gchar **uri, + EMFormatPURI **puri) +{ + EMFormat *formatter; + GtkHTML *html; + gchar *text_uri; + gchar *image_uri; + gboolean is_cid; + + html = GTK_HTML (display); + formatter = EM_FORMAT (display->priv->formatter); + + if (event != NULL) { + text_uri = gtk_html_get_url_at (html, event->x, event->y); + image_uri = gtk_html_get_image_src_at (html, event->x, event->y); + } else { + text_uri = gtk_html_get_cursor_url (html); + image_uri = gtk_html_get_cursor_image_src (html); + } + + is_cid = (image_uri != NULL) && + (g_ascii_strncasecmp (image_uri, "cid:", 4) == 0); + + if (image_uri != NULL) { + if (strstr (image_uri, "://") == NULL && !is_cid) { + gchar *temp; + + temp = g_strconcat ("file://", image_uri, NULL); + g_free (image_uri); + temp = image_uri; + } + } + + if (puri != NULL) { + if (text_uri != NULL) + *puri = em_format_find_puri (formatter, text_uri); + + if (*puri == NULL && image_uri != NULL) + *puri = em_format_find_puri (formatter, image_uri); + } + + if (uri != NULL) { + *uri = NULL; + if (is_cid) { + if (text_uri != NULL) + *uri = g_strdup_printf ( + "%s\n%s", text_uri, image_uri); + else { + *uri = image_uri; + image_uri = NULL; + } + } else { + *uri = text_uri; + text_uri = NULL; + } + } + + g_free (text_uri); + g_free (image_uri); +} + +static void +mail_display_update_formatter_colors (EMailDisplay *display) +{ + EMFormatHTMLColorType type; + EMFormatHTML *formatter; + GdkColor *color; + GtkStyle *style; + gint state; + + state = GTK_WIDGET_STATE (display); + formatter = display->priv->formatter; + + style = gtk_widget_get_style (GTK_WIDGET (display)); + if (style == NULL) + return; + + g_object_freeze_notify (G_OBJECT (formatter)); + + color = &style->bg[state]; + type = EM_FORMAT_HTML_COLOR_BODY; + em_format_html_set_color (formatter, type, color); + + color = &style->base[GTK_STATE_NORMAL]; + type = EM_FORMAT_HTML_COLOR_CONTENT; + em_format_html_set_color (formatter, type, color); + + color = &style->dark[state]; + type = EM_FORMAT_HTML_COLOR_FRAME; + em_format_html_set_color (formatter, type, color); + + color = &style->fg[state]; + type = EM_FORMAT_HTML_COLOR_HEADER; + em_format_html_set_color (formatter, type, color); + + color = &style->text[state]; + type = EM_FORMAT_HTML_COLOR_TEXT; + em_format_html_set_color (formatter, type, color); + + g_object_thaw_notify (G_OBJECT (formatter)); +} + +static void +mail_display_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_ANIMATE: + e_mail_display_set_animate ( + E_MAIL_DISPLAY (object), + g_value_get_boolean (value)); + return; + + case PROP_CARET_MODE: + e_mail_display_set_caret_mode ( + E_MAIL_DISPLAY (object), + g_value_get_boolean (value)); + return; + + case PROP_FORMATTER: + e_mail_display_set_formatter ( + E_MAIL_DISPLAY (object), + g_value_get_object (value)); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +mail_display_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_ANIMATE: + g_value_set_boolean ( + value, e_mail_display_get_animate ( + E_MAIL_DISPLAY (object))); + return; + + case PROP_CARET_MODE: + g_value_set_boolean ( + value, e_mail_display_get_caret_mode ( + E_MAIL_DISPLAY (object))); + return; + + case PROP_FORMATTER: + g_value_set_object ( + value, e_mail_display_get_formatter ( + E_MAIL_DISPLAY (object))); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +mail_display_dispose (GObject *object) +{ + EMailDisplayPrivate *priv; + + priv = E_MAIL_DISPLAY_GET_PRIVATE (object); + + if (priv->formatter) { + g_object_unref (priv->formatter); + priv->formatter = NULL; + } + + /* Chain up to parent's dispose() method. */ + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +mail_display_realize (GtkWidget *widget) +{ + /* Chain up to parent's realize() method. */ + GTK_WIDGET_CLASS (parent_class)->realize (widget); + + mail_display_update_formatter_colors (E_MAIL_DISPLAY (widget)); +} + +static void +mail_display_style_set (GtkWidget *widget, + GtkStyle *previous_style) +{ + EMailDisplayPrivate *priv; + + priv = E_MAIL_DISPLAY_GET_PRIVATE (widget); + + /* Chain up to parent's style_set() method. */ + GTK_WIDGET_CLASS (parent_class)->style_set (widget, previous_style); + + mail_display_update_formatter_colors (E_MAIL_DISPLAY (widget)); + em_format_redraw (EM_FORMAT (priv->formatter)); +} + +static gboolean +mail_display_button_press_event (GtkWidget *widget, + GdkEventButton *event) +{ + if (event->button == 3) { + EMailDisplay *display; + EMFormatPURI *puri = NULL; + gboolean stop_handlers = TRUE; + gchar *uri = NULL; + + display = E_MAIL_DISPLAY (widget); + mail_display_get_uri_puri (display, event, &uri, &puri); + + if (uri == NULL || !g_str_has_prefix (uri, "##")) + stop_handlers = mail_display_emit_popup_event ( + display, event, uri, puri); + + g_free (uri); + + if (stop_handlers) + return TRUE; + } + + /* Chain up to parent's button_press_event() method. */ + return GTK_WIDGET_CLASS (parent_class)-> + button_press_event (widget, event); +} + +static gboolean +mail_display_scroll_event (GtkWidget *widget, + GdkEventScroll *event) +{ + if (event->state & GDK_CONTROL_MASK) { + switch (event->direction) { + case GDK_SCROLL_UP: + gtk_html_zoom_in (GTK_HTML (widget)); + return TRUE; + case GDK_SCROLL_DOWN: + gtk_html_zoom_out (GTK_HTML (widget)); + return TRUE; + default: + break; + } + } + + return FALSE; +} + +static void +mail_display_link_clicked (GtkHTML *html, + const gchar *uri) +{ + EMailDisplayPrivate *priv; + + priv = E_MAIL_DISPLAY_GET_PRIVATE (html); + g_return_if_fail (priv->formatter != NULL); + + if (g_str_has_prefix (uri, "##")) { + guint32 flags; + + flags = priv->formatter->header_wrap_flags; + + if (strcmp (uri, "##TO##") == 0) { + if (!(flags & EM_FORMAT_HTML_HEADER_TO)) + flags |= EM_FORMAT_HTML_HEADER_TO; + else + flags &= ~EM_FORMAT_HTML_HEADER_TO; + } else if (strcmp (uri, "##CC##") == 0) { + if (!(flags & EM_FORMAT_HTML_HEADER_CC)) + flags |= EM_FORMAT_HTML_HEADER_CC; + else + flags |= EM_FORMAT_HTML_HEADER_CC; + } else if (strcmp (uri, "##BCC##") == 0) { + if (!(flags & EM_FORMAT_HTML_HEADER_BCC)) + flags |= EM_FORMAT_HTML_HEADER_BCC; + else + flags |= EM_FORMAT_HTML_HEADER_BCC; + } + + priv->formatter->header_wrap_flags = flags; + em_format_redraw (EM_FORMAT (priv->formatter)); + + } else if (*uri == '#') + gtk_html_jump_to_anchor (html, uri + 1); + + else if (g_ascii_strncasecmp (uri, "thismessage:", 12) == 0) + /* ignore */ ; + + else if (g_ascii_strncasecmp (uri, "cid:", 4) == 0) + /* ignore */ ; + + else { + gpointer parent; + + parent = gtk_widget_get_toplevel (GTK_WIDGET (html)); + parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL; + + e_show_uri (parent, uri); + } +} + +static void +mail_display_on_url (GtkHTML *html, + const gchar *uri) +{ + EMailDisplay *display; + CamelInternetAddress *address; + CamelURL *curl; + const gchar *format = NULL; + gchar *message = NULL; + gchar *who; + + display = E_MAIL_DISPLAY (html); + + if (uri == NULL || *uri == '\0') + goto exit; + + if (g_str_has_prefix (uri, "mailto:")) + format = _("Click to mail %s"); + else if (g_str_has_prefix (uri, "callto:")) + format = _("Click to call %s"); + else if (g_str_has_prefix (uri, "h323:")) + format = _("Click to call %s"); + else if (g_str_has_prefix (uri, "sip:")) + format = _("Click to call %s"); + else if (g_str_has_prefix (uri, "##")) + message = g_strdup (_("Click to hide/unhide addresses")); + else + message = g_strdup_printf (_("Click to open %s"), uri); + + if (format == NULL) + goto exit; + + curl = camel_url_new (uri, NULL); + address = camel_internet_address_new (); + camel_address_decode (CAMEL_ADDRESS (address), curl->path); + who = camel_address_format (CAMEL_ADDRESS (address)); + camel_object_unref (address); + camel_url_free (curl); + + if (who == NULL) + who = g_strdup (strchr (uri, ':') + 1); + + message = g_strdup_printf (format, who); + + g_free (who); + +exit: + mail_display_emit_status_message (display, message); + + g_free (message); +} + +static void +mail_display_iframe_created (GtkHTML *html, + GtkHTML *iframe) +{ + g_signal_connect_swapped ( + iframe, "button-press-event", + G_CALLBACK (mail_display_button_press_event), html); +} + +static void +mail_display_class_init (EMailDisplayClass *class) +{ + GObjectClass *object_class; + GtkWidgetClass *widget_class; + GtkHTMLClass *html_class; + + parent_class = g_type_class_peek_parent (class); + g_type_class_add_private (class, sizeof (EMailDisplayPrivate)); + + object_class = G_OBJECT_CLASS (class); + object_class->set_property = mail_display_set_property; + object_class->get_property = mail_display_get_property; + object_class->dispose = mail_display_dispose; + + widget_class = GTK_WIDGET_CLASS (class); + widget_class->realize = mail_display_realize; + widget_class->style_set = mail_display_style_set; + widget_class->button_press_event = mail_display_button_press_event; + widget_class->scroll_event = mail_display_scroll_event; + + html_class = GTK_HTML_CLASS (class); + html_class->link_clicked = mail_display_link_clicked; + html_class->on_url = mail_display_on_url; + html_class->iframe_created = mail_display_iframe_created; + + g_object_class_install_property ( + object_class, + PROP_ANIMATE, + g_param_spec_boolean ( + "animate", + "Animate Images", + NULL, + FALSE, + G_PARAM_READWRITE)); + + g_object_class_install_property ( + object_class, + PROP_CARET_MODE, + g_param_spec_boolean ( + "caret-mode", + "Caret Mode", + NULL, + FALSE, + G_PARAM_READWRITE)); + + g_object_class_install_property ( + object_class, + PROP_FORMATTER, + g_param_spec_object ( + "formatter", + "HTML Formatter", + NULL, + EM_TYPE_FORMAT_HTML, + G_PARAM_READWRITE)); + + signals[POPUP_EVENT] = g_signal_new ( + "popup-event", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EMailDisplayClass, popup_event), + g_signal_accumulator_true_handled, NULL, + e_marshal_BOOLEAN__BOXED_POINTER_POINTER, + G_TYPE_BOOLEAN, 3, + GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE, + G_TYPE_POINTER, + G_TYPE_POINTER); + + signals[STATUS_MESSAGE] = g_signal_new ( + "status-message", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (EMailDisplayClass, status_message), + NULL, NULL, + g_cclosure_marshal_VOID__STRING, + G_TYPE_NONE, 1, + G_TYPE_STRING); +} + +static void +mail_display_init (EMailDisplay *display) +{ + display->priv = E_MAIL_DISPLAY_GET_PRIVATE (display); +} + +GType +e_mail_display_get_type (void) +{ + static GType type = 0; + + if (G_UNLIKELY (type == 0)) { + static const GTypeInfo type_info = { + sizeof (EMailDisplayClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) mail_display_class_init, + (GClassFinalizeFunc) NULL, + NULL, /* class_data */ + sizeof (EMailDisplay), + 0, /* n_preallocs */ + (GInstanceInitFunc) mail_display_init, + NULL /* value_table */ + }; + + type = g_type_register_static ( + GTK_TYPE_HTML, "EMailDisplay", &type_info, 0); + } + + return type; +} + +gboolean +e_mail_display_get_animate (EMailDisplay *display) +{ + /* XXX This is just here to maintain symmetry + * with e_mail_display_set_animate(). */ + + g_return_val_if_fail (E_IS_MAIL_DISPLAY (display), FALSE); + + return gtk_html_get_animate (GTK_HTML (display)); +} + +void +e_mail_display_set_animate (EMailDisplay *display, + gboolean animate) +{ + /* XXX GtkHTML does not utilize GObject properties as well + * as it could. This just wraps gtk_html_set_animate() + * so we can get a "notify::animate" signal. */ + + g_return_if_fail (E_IS_MAIL_DISPLAY (display)); + + gtk_html_set_animate (GTK_HTML (display), animate); + + g_object_notify (G_OBJECT (display), "animate"); +} + +gboolean +e_mail_display_get_caret_mode (EMailDisplay *display) +{ + /* XXX This is just here to maintain symmetry + * with e_mail_display_set_caret_mode(). */ + + g_return_val_if_fail (E_IS_MAIL_DISPLAY (display), FALSE); + + return gtk_html_get_caret_mode (GTK_HTML (display)); +} + +void +e_mail_display_set_caret_mode (EMailDisplay *display, + gboolean caret_mode) +{ + /* XXX GtkHTML does not utilize GObject properties as well + * as it could. This just wraps gtk_html_set_caret_mode() + * so we can get a "notify::caret-mode" signal. */ + + g_return_if_fail (E_IS_MAIL_DISPLAY (display)); + + gtk_html_set_caret_mode (GTK_HTML (display), caret_mode); + + g_object_notify (G_OBJECT (display), "caret-mode"); +} + +EMFormatHTML * +e_mail_display_get_formatter (EMailDisplay *display) +{ + g_return_val_if_fail (E_IS_MAIL_DISPLAY (display), NULL); + + return display->priv->formatter; +} + +void +e_mail_display_set_formatter (EMailDisplay *display, + EMFormatHTML *formatter) +{ + g_return_if_fail (E_IS_MAIL_DISPLAY (display)); + g_return_if_fail (EM_IS_FORMAT_HTML (formatter)); + + if (display->priv->formatter != NULL) + g_object_unref (display->priv->formatter); + + display->priv->formatter = g_object_ref (formatter); + + g_object_notify (G_OBJECT (display), "formatter"); +} |