diff options
Diffstat (limited to 'widgets')
| -rw-r--r-- | widgets/misc/Makefile.am | 2 | ||||
| -rw-r--r-- | widgets/misc/e-attachment-view.c | 44 | ||||
| -rw-r--r-- | widgets/misc/e-signature-preview.c | 71 | ||||
| -rw-r--r-- | widgets/misc/e-signature-preview.h | 6 | ||||
| -rw-r--r-- | widgets/misc/e-web-view.c | 1110 | ||||
| -rw-r--r-- | widgets/misc/e-web-view.h | 119 |
6 files changed, 1269 insertions, 83 deletions
diff --git a/widgets/misc/Makefile.am b/widgets/misc/Makefile.am index 29607758e5..91906b0448 100644 --- a/widgets/misc/Makefile.am +++ b/widgets/misc/Makefile.am @@ -86,6 +86,7 @@ widgetsinclude_HEADERS = \ e-spinner.h \ e-timeout-activity.h \ e-url-entry.h \ + e-web-view.h \ ea-calendar-cell.h \ ea-calendar-item.h \ ea-cell-table.h \ @@ -148,6 +149,7 @@ libemiscwidgets_la_SOURCES = \ e-signature-tree-view.c \ e-timeout-activity.c \ e-url-entry.c \ + e-web-view.c \ ea-calendar-cell.c \ ea-calendar-item.c \ ea-cell-table.c \ diff --git a/widgets/misc/e-attachment-view.c b/widgets/misc/e-attachment-view.c index 17a2b6c9b4..cd5301a987 100644 --- a/widgets/misc/e-attachment-view.c +++ b/widgets/misc/e-attachment-view.c @@ -682,12 +682,30 @@ attachment_view_update_actions (EAttachmentView *view) } static void +attachment_view_add_handler (GType type, + EAttachmentView *view) +{ + EAttachmentViewPrivate *priv; + EAttachmentHandler *handler; + const GtkTargetEntry *targets; + guint n_targets; + + priv = e_attachment_view_get_private (view); + + handler = g_object_new (type, "view", view, NULL); + + targets = e_attachment_handler_get_target_table (handler, &n_targets); + gtk_target_list_add_table (priv->target_list, targets, n_targets); + priv->drag_actions = e_attachment_handler_get_drag_actions (handler); + + g_ptr_array_add (priv->handlers, handler); +} + +static void attachment_view_init_handlers (EAttachmentView *view) { EAttachmentViewPrivate *priv; GtkTargetList *target_list; - GType *children; - guint ii; priv = e_attachment_view_get_private (view); @@ -700,25 +718,9 @@ attachment_view_init_handlers (EAttachmentView *view) priv->target_list = target_list; priv->drag_actions = GDK_ACTION_COPY; - children = g_type_children (E_TYPE_ATTACHMENT_HANDLER, NULL); - - for (ii = 0; children[ii] != G_TYPE_INVALID; ii++) { - EAttachmentHandler *handler; - const GtkTargetEntry *targets; - guint n_targets; - - handler = g_object_new (children[ii], "view", view, NULL); - - targets = e_attachment_handler_get_target_table ( - handler, &n_targets); - gtk_target_list_add_table (target_list, targets, n_targets); - priv->drag_actions |= - e_attachment_handler_get_drag_actions (handler); - - g_ptr_array_add (priv->handlers, handler); - } - - g_free (children); + e_type_traverse ( + E_TYPE_ATTACHMENT_HANDLER, (ETypeFunc) + attachment_view_add_handler, view); } static void diff --git a/widgets/misc/e-signature-preview.c b/widgets/misc/e-signature-preview.c index bbef65f39c..a9316e44ec 100644 --- a/widgets/misc/e-signature-preview.c +++ b/widgets/misc/e-signature-preview.c @@ -113,56 +113,17 @@ signature_preview_dispose (GObject *object) } static void -signature_preview_url_requested (GtkHTML *html, - const gchar *url, - GtkHTMLStream *handle) -{ - GtkHTMLStreamStatus status; - gchar buffer[128]; - gchar *filename; - gssize size; - gint fd; - - /* FIXME Use GInputStream for this. */ - - if (g_str_has_prefix (url, "file:")) - filename = g_filename_from_uri (url, NULL, NULL); - else - filename = g_strdup (url); - fd = g_open (filename, O_RDONLY, 0); - g_free (filename); - - status = GTK_HTML_STREAM_OK; - if (fd != -1) { - while ((size = read (fd, buffer, sizeof (buffer)))) { - if (size == -1) { - status = GTK_HTML_STREAM_ERROR; - break; - } else - gtk_html_write (html, handle, buffer, size); - } - } else - status = GTK_HTML_STREAM_ERROR; - - gtk_html_end (html, handle, status); - - if (fd > 0) - close (fd); -} - -static void signature_preview_refresh (ESignaturePreview *preview) { - GtkHTML *html; + EWebView *web_view; ESignature *signature; const gchar *filename; gboolean is_script; gchar *content = NULL; - gsize length; /* XXX We should show error messages in the preview. */ - html = GTK_HTML (preview); + web_view = E_WEB_VIEW (preview); signature = e_signature_preview_get_signature (preview); if (signature == NULL) @@ -182,27 +143,23 @@ signature_preview_refresh (ESignaturePreview *preview) if (content == NULL || *content == '\0') goto clear; - length = strlen (content); - if (e_signature_get_is_html (signature)) - gtk_html_load_from_string (html, content, length); + e_web_view_load_string (web_view, content); else { - GtkHTMLStream *stream; - - stream = gtk_html_begin_content ( - html, "text/html; charset=utf-8"); - gtk_html_write (html, stream, "<PRE>", 5); - if (length > 0) - gtk_html_write (html, stream, content, length); - gtk_html_write (html, stream, "</PRE>", 6); - gtk_html_end (html, stream, GTK_HTML_STREAM_OK); + gchar *string; + + string = g_strdup_printf ("<PRE>%s</PRE>", content); + e_web_view_load_string (web_view, string); + g_free (string); } g_free (content); + return; clear: - gtk_html_load_from_string (html, " ", 1); + e_web_view_clear (web_view); + g_free (content); } @@ -210,7 +167,6 @@ static void signature_preview_class_init (ESignaturePreviewClass *class) { GObjectClass *object_class; - GtkHTMLClass *html_class; parent_class = g_type_class_peek_parent (class); g_type_class_add_private (class, sizeof (ESignaturePreviewPrivate)); @@ -220,9 +176,6 @@ signature_preview_class_init (ESignaturePreviewClass *class) object_class->get_property = signature_preview_get_property; object_class->dispose = signature_preview_dispose; - html_class = GTK_HTML_CLASS (class); - html_class->url_requested = signature_preview_url_requested; - class->refresh = signature_preview_refresh; g_object_class_install_property ( @@ -282,7 +235,7 @@ e_signature_preview_get_type (void) }; type = g_type_register_static ( - GTK_TYPE_HTML, "ESignaturePreview", &type_info, 0); + E_TYPE_WEB_VIEW, "ESignaturePreview", &type_info, 0); } return type; diff --git a/widgets/misc/e-signature-preview.h b/widgets/misc/e-signature-preview.h index a4221832c2..d0d5c22eff 100644 --- a/widgets/misc/e-signature-preview.h +++ b/widgets/misc/e-signature-preview.h @@ -22,8 +22,8 @@ #ifndef E_SIGNATURE_PREVIEW_H #define E_SIGNATURE_PREVIEW_H -#include <gtkhtml/gtkhtml.h> #include <e-util/e-signature.h> +#include <misc/e-web-view.h> /* Standard GObject macros */ #define E_TYPE_SIGNATURE_PREVIEW \ @@ -51,12 +51,12 @@ typedef struct _ESignaturePreviewClass ESignaturePreviewClass; typedef struct _ESignaturePreviewPrivate ESignaturePreviewPrivate; struct _ESignaturePreview { - GtkHTML parent; + EWebView parent; ESignaturePreviewPrivate *priv; }; struct _ESignaturePreviewClass { - GtkHTMLClass parent_class; + EWebViewClass parent_class; /* Signals */ void (*refresh) (ESignaturePreview *preview); diff --git a/widgets/misc/e-web-view.c b/widgets/misc/e-web-view.c new file mode 100644 index 0000000000..a49fd22527 --- /dev/null +++ b/widgets/misc/e-web-view.c @@ -0,0 +1,1110 @@ +/* + * e-web-view.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-web-view.h" + +#include <config.h> +#include <string.h> +#include <glib/gi18n-lib.h> + +#include <camel/camel-internet-address.h> +#include <camel/camel-url.h> + +#include "e-util/e-util.h" +#include "e-util/e-plugin-ui.h" + +#define E_WEB_VIEW_GET_PRIVATE(obj) \ + (G_TYPE_INSTANCE_GET_PRIVATE \ + ((obj), E_TYPE_WEB_VIEW, EWebViewPrivate)) + +typedef struct _EWebViewRequest EWebViewRequest; + +struct _EWebViewPrivate { + GList *requests; + GtkUIManager *ui_manager; + gchar *selected_uri; +}; + +struct _EWebViewRequest { + GFile *file; + EWebView *web_view; + GCancellable *cancellable; + GInputStream *input_stream; + GtkHTMLStream *output_stream; + gchar buffer[4096]; +}; + +enum { + PROP_0, + PROP_ANIMATE, + PROP_CARET_MODE, + PROP_SELECTED_URI +}; + +enum { + POPUP_EVENT, + STATUS_MESSAGE, + STOP_LOADING, + UPDATE_ACTIONS, + LAST_SIGNAL +}; + +static gpointer parent_class; +static guint signals[LAST_SIGNAL]; + +static const gchar *ui = +"<ui>" +" <popup name='context'>" +" <placeholder name='custom-actions-1'>" +" <menuitem action='http-open'/>" +" <menuitem action='send-message'/>" +" </placeholder>" +" <placeholder name='custom-actions-2'>" +" <menuitem action='uri-copy'/>" +" <menuitem action='mailto-copy'/>" +" </placeholder>" +" <placeholder name='custom-actions-3'/>" +" </popup>" +"</ui>"; + +static EWebViewRequest * +web_view_request_new (EWebView *web_view, + const gchar *uri, + GtkHTMLStream *stream) +{ + EWebViewRequest *request; + GList *list; + + request = g_slice_new (EWebViewRequest); + + /* Try to detect file paths posing as URIs. */ + if (*uri == '/') + request->file = g_file_new_for_path (uri); + else + request->file = g_file_new_for_uri (uri); + + request->web_view = g_object_ref (web_view); + request->cancellable = g_cancellable_new (); + request->input_stream = NULL; + request->output_stream = stream; + + list = request->web_view->priv->requests; + list = g_list_prepend (list, request); + request->web_view->priv->requests = list; + + return request; +} + +static void +web_view_request_free (EWebViewRequest *request) +{ + GList *list; + + list = request->web_view->priv->requests; + list = g_list_remove (list, request); + request->web_view->priv->requests = list; + + g_object_unref (request->file); + g_object_unref (request->web_view); + g_object_unref (request->cancellable); + + if (request->input_stream != NULL) + g_object_unref (request->input_stream); + + g_slice_free (EWebViewRequest, request); +} + +static void +web_view_request_cancel (EWebViewRequest *request) +{ + g_cancellable_cancel (request->cancellable); +} + +static gboolean +web_view_request_check_for_error (EWebViewRequest *request, + GError *error) +{ + GtkHTML *html; + GtkHTMLStream *stream; + + if (error == NULL) + return FALSE; + + /* XXX Should we log errors that are not cancellations? */ + + html = GTK_HTML (request->web_view); + stream = request->output_stream; + + gtk_html_end (html, stream, GTK_HTML_STREAM_ERROR); + web_view_request_free (request); + g_error_free (error); + + return TRUE; +} + +static void +web_view_request_stream_read_cb (GInputStream *input_stream, + GAsyncResult *result, + EWebViewRequest *request) +{ + GtkHTML *html; + gssize bytes_read; + GError *error = NULL; + + html = GTK_HTML (request->web_view); + bytes_read = g_input_stream_read_finish (input_stream, result, &error); + + if (web_view_request_check_for_error (request, error)) + return; + + if (bytes_read == 0) { + gtk_html_end ( + GTK_HTML (request->web_view), + request->output_stream, GTK_HTML_STREAM_OK); + web_view_request_free (request); + return; + } + + gtk_html_write ( + GTK_HTML (request->web_view), + request->output_stream, request->buffer, bytes_read); + + g_input_stream_read_async ( + request->input_stream, request->buffer, + sizeof (request->buffer), G_PRIORITY_DEFAULT, + request->cancellable, (GAsyncReadyCallback) + web_view_request_stream_read_cb, request); +} + +static void +web_view_request_read_cb (GFile *file, + GAsyncResult *result, + EWebViewRequest *request) +{ + GFileInputStream *input_stream; + GError *error = NULL; + + /* Input stream might be NULL, so don't use cast macro. */ + input_stream = g_file_read_finish (file, result, &error); + request->input_stream = (GInputStream *) input_stream; + + if (web_view_request_check_for_error (request, error)) + return; + + g_input_stream_read_async ( + request->input_stream, request->buffer, + sizeof (request->buffer), G_PRIORITY_DEFAULT, + request->cancellable, (GAsyncReadyCallback) + web_view_request_stream_read_cb, request); +} + +static void +action_http_open_cb (GtkAction *action, + EWebView *web_view) +{ + const gchar *uri; + gpointer parent; + + parent = gtk_widget_get_toplevel (GTK_WIDGET (web_view)); + parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL; + + uri = e_web_view_get_selected_uri (web_view); + g_return_if_fail (uri != NULL); + + e_show_uri (parent, uri); +} + +static void +action_mailto_copy_cb (GtkAction *action, + EWebView *web_view) +{ + CamelURL *curl; + CamelInternetAddress *inet_addr; + GtkClipboard *clipboard; + const gchar *uri; + gchar *text; + + clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD); + uri = e_web_view_get_selected_uri (web_view); + g_return_if_fail (uri != NULL); + + /* This should work because we checked it in update_actions(). */ + curl = camel_url_new (uri, NULL); + g_return_if_fail (curl != NULL); + + inet_addr = camel_internet_address_new (); + camel_address_decode (CAMEL_ADDRESS (inet_addr), curl->path); + text = camel_address_encode (CAMEL_ADDRESS (inet_addr)); + if (text == NULL || *text == '\0') + text = g_strdup (uri + strlen ("mailto:")); + + camel_object_unref (inet_addr); + camel_url_free (curl); + + gtk_clipboard_set_text (clipboard, text, -1); + gtk_clipboard_store (clipboard); + + g_free (text); +} + +static void +action_send_message_cb (GtkAction *action, + EWebView *web_view) +{ + const gchar *uri; + gpointer parent; + + parent = gtk_widget_get_toplevel (GTK_WIDGET (web_view)); + parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL; + + uri = e_web_view_get_selected_uri (web_view); + g_return_if_fail (uri != NULL); + + e_show_uri (parent, uri); +} + +static void +action_uri_copy_cb (GtkAction *action, + EWebView *web_view) +{ + GtkClipboard *clipboard; + const gchar *uri; + + clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD); + uri = e_web_view_get_selected_uri (web_view); + g_return_if_fail (uri != NULL); + + gtk_clipboard_set_text (clipboard, uri, -1); + gtk_clipboard_store (clipboard); +} + +static GtkActionEntry uri_entries[] = { + + { "uri-copy", + GTK_STOCK_COPY, + N_("_Copy Link Location"), + NULL, + N_("Copy the link to the clipboard"), + G_CALLBACK (action_uri_copy_cb) } +}; + +static GtkActionEntry http_entries[] = { + + { "http-open", + "emblem-web", + N_("_Open Link in Browser"), + NULL, + N_("Open the link in a web browser"), + G_CALLBACK (action_http_open_cb) } +}; + +static GtkActionEntry mailto_entries[] = { + + { "mailto-copy", + GTK_STOCK_COPY, + N_("_Copy Email Address"), + NULL, + N_("Copy the email address to the clipboard"), + G_CALLBACK (action_mailto_copy_cb) }, + + { "send-message", + "mail-message-new", + N_("_Send New Message To..."), + NULL, + N_("Send a mail message to this address"), + G_CALLBACK (action_send_message_cb) } +}; + +static gboolean +web_view_button_press_event_cb (EWebView *web_view, + GdkEventButton *event, + GtkHTML *frame) +{ + gboolean event_handled = FALSE; + gchar *uri; + + if (event != NULL && event->button != 3) + return FALSE; + + uri = e_web_view_extract_uri (web_view, event, frame); + + if (uri == NULL || g_str_has_prefix (uri, "##")) { + g_free (uri); + return FALSE; + } + + g_signal_emit ( + web_view, signals[POPUP_EVENT], 0, + event, uri, &event_handled); + + g_free (uri); + + return event_handled; +} + +static void +web_view_menu_item_select_cb (EWebView *web_view, + GtkWidget *widget) +{ + GtkAction *action; + const gchar *tooltip; + + action = gtk_widget_get_action (widget); + tooltip = gtk_action_get_tooltip (action); + + if (tooltip == NULL) + return; + + e_web_view_status_message (web_view, tooltip); +} + +static void +web_view_menu_item_deselect_cb (EWebView *web_view) +{ + e_web_view_status_message (web_view, NULL); +} + +static void +web_view_connect_proxy_cb (EWebView *web_view, + GtkAction *action, + GtkWidget *proxy) +{ + if (!GTK_IS_MENU_ITEM (proxy)) + return; + + g_signal_connect_swapped ( + proxy, "select", + G_CALLBACK (web_view_menu_item_select_cb), web_view); + + g_signal_connect_swapped ( + proxy, "deselect", + G_CALLBACK (web_view_menu_item_deselect_cb), web_view); +} + +static void +web_view_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_ANIMATE: + e_web_view_set_animate ( + E_WEB_VIEW (object), + g_value_get_boolean (value)); + return; + + case PROP_CARET_MODE: + e_web_view_set_caret_mode ( + E_WEB_VIEW (object), + g_value_get_boolean (value)); + return; + + case PROP_SELECTED_URI: + e_web_view_set_selected_uri ( + E_WEB_VIEW (object), + g_value_get_string (value)); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +web_view_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_ANIMATE: + g_value_set_boolean ( + value, e_web_view_get_animate ( + E_WEB_VIEW (object))); + return; + + case PROP_CARET_MODE: + g_value_set_boolean ( + value, e_web_view_get_caret_mode ( + E_WEB_VIEW (object))); + return; + + case PROP_SELECTED_URI: + g_value_set_string ( + value, e_web_view_get_selected_uri ( + E_WEB_VIEW (object))); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +web_view_dispose (GObject *object) +{ + EWebViewPrivate *priv; + + priv = E_WEB_VIEW_GET_PRIVATE (object); + + if (priv->ui_manager != NULL) { + g_object_unref (priv->ui_manager); + priv->ui_manager = NULL; + } + + /* Chain up to parent's dispose() method. */ + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +web_view_finalize (GObject *object) +{ + EWebViewPrivate *priv; + + priv = E_WEB_VIEW_GET_PRIVATE (object); + + /* All URI requests should be complete or cancelled by now. */ + if (priv->requests != NULL) + g_warning ("Finalizing EWebView with active URI requests"); + + g_free (priv->selected_uri); + + /* Chain up to parent's finalize() method. */ + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static gboolean +web_view_button_press_event (GtkWidget *widget, + GdkEventButton *event) +{ + GtkWidgetClass *widget_class; + EWebView *web_view; + + web_view = E_WEB_VIEW (widget); + + if (web_view_button_press_event_cb (web_view, event, NULL)) + return TRUE; + + /* Chain up to parent's button_press_event() method. */ + widget_class = GTK_WIDGET_CLASS (parent_class); + return widget_class->button_press_event (widget, event); +} + +static gboolean +web_view_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 +web_view_url_requested (GtkHTML *html, + const gchar *uri, + GtkHTMLStream *stream) +{ + EWebViewRequest *request; + + request = web_view_request_new (E_WEB_VIEW (html), uri, stream); + + g_file_read_async ( + request->file, G_PRIORITY_DEFAULT, + request->cancellable, (GAsyncReadyCallback) + web_view_request_read_cb, request); +} + +static void +web_view_link_clicked (GtkHTML *html, + const gchar *uri) +{ + gpointer parent; + + parent = gtk_widget_get_toplevel (GTK_WIDGET (html)); + parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL; + + e_show_uri (parent, uri); +} + +static void +web_view_on_url (GtkHTML *html, + const gchar *uri) +{ + EWebView *web_view; + CamelInternetAddress *address; + CamelURL *curl; + const gchar *format = NULL; + gchar *message = NULL; + gchar *who; + + web_view = E_WEB_VIEW (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; + + /* XXX Use something other than Camel here. Surely + * there's other APIs around that can do this. */ + 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: + e_web_view_status_message (web_view, message); + + g_free (message); +} + +static void +web_view_iframe_created (GtkHTML *html, + GtkHTML *iframe) +{ + g_signal_connect_swapped ( + iframe, "button-press-event", + G_CALLBACK (web_view_button_press_event_cb), html); +} + +static gchar * +web_view_extract_uri (EWebView *web_view, + GdkEventButton *event, + GtkHTML *html) +{ + gchar *uri; + + if (event != NULL) + uri = gtk_html_get_url_at (html, event->x, event->y); + else + uri = gtk_html_get_cursor_url (html); + + return uri; +} + +static gboolean +web_view_popup_event (EWebView *web_view, + GdkEventButton *event, + const gchar *uri) +{ + e_web_view_set_selected_uri (web_view, uri); + e_web_view_show_popup_menu (web_view, event, NULL, NULL); + + return TRUE; +} + +static void +web_view_stop_loading (EWebView *web_view) +{ + g_list_foreach ( + web_view->priv->requests, (GFunc) + web_view_request_cancel, NULL); + + gtk_html_stop (GTK_HTML (web_view)); +} + +static void +web_view_update_actions (EWebView *web_view) +{ + CamelURL *curl; + GtkActionGroup *action_group; + gboolean scheme_is_http; + gboolean scheme_is_mailto; + gboolean uri_is_valid; + gboolean visible; + const gchar *uri; + + uri = e_web_view_get_selected_uri (web_view); + g_return_if_fail (uri != NULL); + + /* Parse the URI early so we know if the actions will work. */ + curl = camel_url_new (uri, NULL); + uri_is_valid = (curl != NULL); + camel_url_free (curl); + + scheme_is_http = + (g_ascii_strncasecmp (uri, "http:", 5) == 0) || + (g_ascii_strncasecmp (uri, "https:", 6) == 0); + + scheme_is_mailto = + (g_ascii_strncasecmp (uri, "mailto:", 7) == 0); + + /* Allow copying the URI even if it's malformed. */ + visible = !scheme_is_mailto; + action_group = e_web_view_get_action_group (web_view, "uri"); + gtk_action_group_set_visible (action_group, visible); + + visible = uri_is_valid && scheme_is_http; + action_group = e_web_view_get_action_group (web_view, "http"); + gtk_action_group_set_visible (action_group, visible); + + visible = uri_is_valid && scheme_is_mailto; + action_group = e_web_view_get_action_group (web_view, "mailto"); + gtk_action_group_set_visible (action_group, visible); +} + +static void +web_view_class_init (EWebViewClass *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 (EWebViewPrivate)); + + object_class = G_OBJECT_CLASS (class); + object_class->set_property = web_view_set_property; + object_class->get_property = web_view_get_property; + object_class->dispose = web_view_dispose; + object_class->finalize = web_view_finalize; + + widget_class = GTK_WIDGET_CLASS (class); + widget_class->button_press_event = web_view_button_press_event; + widget_class->scroll_event = web_view_scroll_event; + + html_class = GTK_HTML_CLASS (class); + html_class->url_requested = web_view_url_requested; + html_class->link_clicked = web_view_link_clicked; + html_class->on_url = web_view_on_url; + html_class->iframe_created = web_view_iframe_created; + + class->extract_uri = web_view_extract_uri; + class->popup_event = web_view_popup_event; + class->stop_loading = web_view_stop_loading; + class->update_actions = web_view_update_actions; + + 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_SELECTED_URI, + g_param_spec_string ( + "selected-uri", + "Selected URI", + NULL, + NULL, + G_PARAM_READWRITE)); + + signals[POPUP_EVENT] = g_signal_new ( + "popup-event", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EWebViewClass, popup_event), + g_signal_accumulator_true_handled, NULL, + e_marshal_BOOLEAN__BOXED_STRING, + G_TYPE_BOOLEAN, 2, + GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE, + G_TYPE_STRING); + + signals[STATUS_MESSAGE] = g_signal_new ( + "status-message", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EWebViewClass, status_message), + NULL, NULL, + g_cclosure_marshal_VOID__STRING, + G_TYPE_NONE, 1, + G_TYPE_STRING); + + signals[STOP_LOADING] = g_signal_new ( + "stop-loading", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EWebViewClass, stop_loading), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + signals[UPDATE_ACTIONS] = g_signal_new ( + "update-actions", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EWebViewClass, update_actions), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); +} + +static void +web_view_init (EWebView *web_view) +{ + GtkUIManager *ui_manager; + GtkActionGroup *action_group; + const gchar *domain = GETTEXT_PACKAGE; + const gchar *id; + GError *error = NULL; + + web_view->priv = E_WEB_VIEW_GET_PRIVATE (web_view); + + ui_manager = gtk_ui_manager_new (); + web_view->priv->ui_manager = ui_manager; + + g_signal_connect_swapped ( + ui_manager, "connect-proxy", + G_CALLBACK (web_view_connect_proxy_cb), web_view); + + action_group = gtk_action_group_new ("uri"); + gtk_action_group_set_translation_domain (action_group, domain); + gtk_ui_manager_insert_action_group (ui_manager, action_group, 0); + g_object_unref (action_group); + + gtk_action_group_add_actions ( + action_group, uri_entries, + G_N_ELEMENTS (uri_entries), web_view); + + action_group = gtk_action_group_new ("http"); + gtk_action_group_set_translation_domain (action_group, domain); + gtk_ui_manager_insert_action_group (ui_manager, action_group, 0); + g_object_unref (action_group); + + gtk_action_group_add_actions ( + action_group, http_entries, + G_N_ELEMENTS (http_entries), web_view); + + action_group = gtk_action_group_new ("mailto"); + gtk_action_group_set_translation_domain (action_group, domain); + gtk_ui_manager_insert_action_group (ui_manager, action_group, 0); + g_object_unref (action_group); + + gtk_action_group_add_actions ( + action_group, mailto_entries, + G_N_ELEMENTS (mailto_entries), web_view); + + /* Because we are loading from a hard-coded string, there is + * no chance of I/O errors. Failure here implies a malformed + * UI definition. Full stop. */ + gtk_ui_manager_add_ui_from_string (ui_manager, ui, -1, &error); + if (error != NULL) + g_error ("%s", error->message); + + id = "org.gnome.evolution.webview"; + e_plugin_ui_register_manager (ui_manager, id, web_view); + e_plugin_ui_enable_manager (ui_manager, id); +} + +GType +e_web_view_get_type (void) +{ + static GType type = 0; + + if (G_UNLIKELY (type == 0)) { + static const GTypeInfo type_info = { + sizeof (EWebViewClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) web_view_class_init, + (GClassFinalizeFunc) NULL, + NULL, /* class_data */ + sizeof (EWebView), + 0, /* n_preallocs */ + (GInstanceInitFunc) web_view_init, + NULL /* value_table */ + }; + + type = g_type_register_static ( + GTK_TYPE_HTML, "EWebView", &type_info, 0); + } + + return type; +} + +GtkWidget * +e_web_view_new (void) +{ + return g_object_new (E_TYPE_WEB_VIEW, NULL); +} + +void +e_web_view_clear (EWebView *web_view) +{ + g_return_if_fail (E_IS_WEB_VIEW (web_view)); + + gtk_html_load_empty (GTK_HTML (web_view)); +} + +void +e_web_view_load_string (EWebView *web_view, + const gchar *string) +{ + g_return_if_fail (E_IS_WEB_VIEW (web_view)); + + if (string != NULL && *string != '\0') + gtk_html_load_from_string (GTK_HTML (web_view), string, -1); + else + e_web_view_clear (web_view); +} + +gboolean +e_web_view_get_animate (EWebView *web_view) +{ + /* XXX This is just here to maintain symmetry + * with e_web_view_set_animate(). */ + + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), FALSE); + + return gtk_html_get_animate (GTK_HTML (web_view)); +} + +void +e_web_view_set_animate (EWebView *web_view, + 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_WEB_VIEW (web_view)); + + gtk_html_set_animate (GTK_HTML (web_view), animate); + + g_object_notify (G_OBJECT (web_view), "animate"); +} + +gboolean +e_web_view_get_caret_mode (EWebView *web_view) +{ + /* XXX This is just here to maintain symmetry + * with e_web_view_set_caret_mode(). */ + + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), FALSE); + + return gtk_html_get_caret_mode (GTK_HTML (web_view)); +} + +void +e_web_view_set_caret_mode (EWebView *web_view, + 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_WEB_VIEW (web_view)); + + gtk_html_set_caret_mode (GTK_HTML (web_view), caret_mode); + + g_object_notify (G_OBJECT (web_view), "caret-mode"); +} + +const gchar * +e_web_view_get_selected_uri (EWebView *web_view) +{ + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL); + + return web_view->priv->selected_uri; +} + +void +e_web_view_set_selected_uri (EWebView *web_view, + const gchar *selected_uri) +{ + g_return_if_fail (E_IS_WEB_VIEW (web_view)); + + g_free (web_view->priv->selected_uri); + web_view->priv->selected_uri = g_strdup (selected_uri); + + g_object_notify (G_OBJECT (web_view), "selected-uri"); +} + +GtkAction * +e_web_view_get_action (EWebView *web_view, + const gchar *action_name) +{ + GtkUIManager *ui_manager; + + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL); + g_return_val_if_fail (action_name != NULL, NULL); + + ui_manager = e_web_view_get_ui_manager (web_view); + + return e_lookup_action (ui_manager, action_name); +} + +GtkActionGroup * +e_web_view_get_action_group (EWebView *web_view, + const gchar *group_name) +{ + GtkUIManager *ui_manager; + + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL); + g_return_val_if_fail (group_name != NULL, NULL); + + ui_manager = e_web_view_get_ui_manager (web_view); + + return e_lookup_action_group (ui_manager, group_name); +} + +gchar * +e_web_view_extract_uri (EWebView *web_view, + GdkEventButton *event, + GtkHTML *frame) +{ + EWebViewClass *class; + + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL); + + if (frame == NULL) + frame = GTK_HTML (web_view); + + class = E_WEB_VIEW_GET_CLASS (web_view); + g_return_val_if_fail (class->extract_uri != NULL, NULL); + + return class->extract_uri (web_view, event, frame); +} + +gboolean +e_web_view_scroll_forward (EWebView *web_view) +{ + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), FALSE); + + return gtk_html_command (GTK_HTML (web_view), "scroll-forward"); +} + +gboolean +e_web_view_scroll_backward (EWebView *web_view) +{ + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), FALSE); + + return gtk_html_command (GTK_HTML (web_view), "scroll-backward"); +} + +GtkUIManager * +e_web_view_get_ui_manager (EWebView *web_view) +{ + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL); + + return web_view->priv->ui_manager; +} + +GtkWidget * +e_web_view_get_popup_menu (EWebView *web_view) +{ + GtkUIManager *ui_manager; + GtkWidget *menu; + + g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL); + + ui_manager = e_web_view_get_ui_manager (web_view); + menu = gtk_ui_manager_get_widget (ui_manager, "/context"); + g_return_val_if_fail (GTK_IS_MENU (menu), NULL); + + return menu; +} + +void +e_web_view_show_popup_menu (EWebView *web_view, + GdkEventButton *event, + GtkMenuPositionFunc func, + gpointer user_data) +{ + GtkWidget *menu; + + g_return_if_fail (E_IS_WEB_VIEW (web_view)); + + e_web_view_update_actions (web_view); + + menu = e_web_view_get_popup_menu (web_view); + + if (event != NULL) + gtk_menu_popup ( + GTK_MENU (menu), NULL, NULL, func, + user_data, event->button, event->time); + else + gtk_menu_popup ( + GTK_MENU (menu), NULL, NULL, func, + user_data, 0, gtk_get_current_event_time ()); +} + +void +e_web_view_status_message (EWebView *web_view, + const gchar *status_message) +{ + g_return_if_fail (E_IS_WEB_VIEW (web_view)); + + g_signal_emit (web_view, signals[STATUS_MESSAGE], 0, status_message); +} + +void +e_web_view_stop_loading (EWebView *web_view) +{ + g_return_if_fail (E_IS_WEB_VIEW (web_view)); + + g_signal_emit (web_view, signals[STOP_LOADING], 0); +} + +void +e_web_view_update_actions (EWebView *web_view) +{ + g_return_if_fail (E_IS_WEB_VIEW (web_view)); + + g_signal_emit (web_view, signals[UPDATE_ACTIONS], 0); +} diff --git a/widgets/misc/e-web-view.h b/widgets/misc/e-web-view.h new file mode 100644 index 0000000000..3bce2b4887 --- /dev/null +++ b/widgets/misc/e-web-view.h @@ -0,0 +1,119 @@ +/* + * e-web-view.h + * + * 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) + * + */ + +/* This is intended to serve as a common base class for all HTML viewing + * needs in Evolution. Currently based on GtkHTML, the idea is to wrap + * the GtkHTML API enough that we no longer have to make direct calls to + * it. This should help smooth the transition to WebKit/GTK+. + * + * This class handles basic tasks like mouse hovers over links, clicked + * links, and servicing URI requests asynchronously via GIO. */ + +#ifndef E_WEB_VIEW_H +#define E_WEB_VIEW_H + +#include <gtkhtml/gtkhtml.h> + +/* Standard GObject macros */ +#define E_TYPE_WEB_VIEW \ + (e_web_view_get_type ()) +#define E_WEB_VIEW(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST \ + ((obj), E_TYPE_WEB_VIEW, EWebView)) +#define E_WEB_VIEW_CLASS(cls) \ + (G_TYPE_CHECK_CLASS_CAST \ + ((cls), E_TYPE_WEB_VIEW, EWebViewClass)) +#define E_IS_WEB_VIEW(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE \ + ((obj), E_TYPE_WEB_VIEW)) +#define E_IS_WEB_VIEW_CLASS(cls) \ + (G_TYPE_CHECK_CLASS_TYPE \ + ((cls), E_TYPE_WEB_VIEW)) +#define E_WEB_VIEW_GET_CLASS(obj) \ + (G_TYPE_INSTANCE_GET_CLASS \ + ((obj), E_TYPE_WEB_VIEW, EWebViewClass)) + +G_BEGIN_DECLS + +typedef struct _EWebView EWebView; +typedef struct _EWebViewClass EWebViewClass; +typedef struct _EWebViewPrivate EWebViewPrivate; + +struct _EWebView { + GtkHTML parent; + EWebViewPrivate *priv; +}; + +struct _EWebViewClass { + GtkHTMLClass parent_class; + + /* Methods */ + gchar * (*extract_uri) (EWebView *web_view, + GdkEventButton *event, + GtkHTML *frame); + + /* Signals */ + gboolean (*popup_event) (EWebView *web_view, + GdkEventButton *event, + const gchar *uri); + void (*status_message) (EWebView *web_view, + const gchar *status_message); + void (*stop_loading) (EWebView *web_view); + void (*update_actions) (EWebView *web_view); +}; + +GType e_web_view_get_type (void); +GtkWidget * e_web_view_new (void); +void e_web_view_clear (EWebView *web_view); +void e_web_view_load_string (EWebView *web_view, + const gchar *string); +gboolean e_web_view_get_animate (EWebView *web_view); +void e_web_view_set_animate (EWebView *web_view, + gboolean animate); +gboolean e_web_view_get_caret_mode (EWebView *web_view); +void e_web_view_set_caret_mode (EWebView *web_view, + gboolean caret_mode); +const gchar * e_web_view_get_selected_uri (EWebView *web_view); +void e_web_view_set_selected_uri (EWebView *web_view, + const gchar *selected_uri); +GtkAction * e_web_view_get_action (EWebView *web_view, + const gchar *action_name); +GtkActionGroup *e_web_view_get_action_group (EWebView *web_view, + const gchar *group_name); +gchar * e_web_view_extract_uri (EWebView *web_view, + GdkEventButton *event, + GtkHTML *frame); +gboolean e_web_view_scroll_forward (EWebView *web_view); +gboolean e_web_view_scroll_backward (EWebView *web_view); +GtkUIManager * e_web_view_get_ui_manager (EWebView *web_view); +GtkWidget * e_web_view_get_popup_menu (EWebView *web_view); +void e_web_view_show_popup_menu (EWebView *web_view, + GdkEventButton *event, + GtkMenuPositionFunc func, + gpointer user_data); +void e_web_view_status_message (EWebView *web_view, + const gchar *status_message); +void e_web_view_stop_loading (EWebView *web_view); +void e_web_view_update_actions (EWebView *web_view); + +G_END_DECLS + +#endif /* E_WEB_VIEW_H */ |