[evolution/webkit: 22/196] Make attachments expandable.

[Dan VrÃtil <dvratil src gnome org>]

commit 4f64f3a8bcdc22a00806fa7fd669f8aefb1ef804
Author: Dan VrÃtil <dvratil redhat com>
Date:   Wed Sep 14 11:46:41 2011 +0200

    Make attachments expandable.
    
    Make attachments with widget_func and write_func expandable, as
    EAttachmentButton is created throught widget_func and content of
    the attachment is available throught write_func.

 mail/e-mail-display.c         |   92 ++++++++++++++++++++++++++++++-----------
 mail/em-format-html-display.c |   25 +----------
 2 files changed, 69 insertions(+), 48 deletions(-)
---
diff --git a/mail/e-mail-display.c b/mail/e-mail-display.c
index 8494c93..d96cacc 100644
--- a/mail/e-mail-display.c
+++ b/mail/e-mail-display.c
@@ -36,6 +36,7 @@
 #include "mail/e-mail-request.h"
 #include "mail/em-format-html-display.h"
 #include "mail/e-mail-attachment-bar.h"
+#include "widgets/misc/e-attachment-button.h"
 
 #include <libsoup/soup.h>
 #include <libsoup/soup-requester.h>
@@ -373,8 +374,6 @@ mail_display_resource_requested (WebKitWebView *web_view,
                 g_free (data);
                 g_free (path);
         }
-
-       	//g_signal_stop_emission_by_name (web_view, "resource-request-starting");
 }
 
 static void
@@ -398,7 +397,7 @@ mail_display_headers_collapsed_state_changed (EWebView *web_view,
 
 static void
 mail_display_install_js_callbacks (WebKitWebView *web_view,
-				   WebKitWebFrame *frame,
+			           WebKitWebFrame *frame,
 				   gpointer context,
 				   gpointer window_object,
 				   gpointer user_data)
@@ -452,7 +451,35 @@ mail_display_setup_webview (EMailDisplay *display)
 }
 
 static void
-e_mail_display_class_init (EMailDisplayClass *class)
+mail_display_insert_web_view (EMailDisplay *display,
+			      EWebView *web_view,
+			      gboolean expandable)
+{
+#if 0
+	GtkWidget *scrolled_window;
+
+	display->widgets = g_list_append (display->widgets, GTK_WIDGET (web_view));
+	scrolled_window = gtk_scrolled_window_new (NULL, NULL);
+	g_object_set (G_OBJECT (scrolled_window),
+		"hscrollbar-policy", GTK_POLICY_NEVER,
+		"vscrollbar-policy", GTK_POLICY_NEVER,
+		"shadow-type", GTK_SHADOW_NONE, NULL);
+		//"min-content-height", 300, NULL);
+	gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (web_view));
+	display->widgets = g_list_append (display->widgets, scrolled_window);
+
+	gtk_box_pack_start (GTK_BOX (display->priv->vbox), scrolled_window, expandable, TRUE, 0);
+	gtk_widget_show_all (scrolled_window);
+#endif
+
+	gtk_box_pack_start (GTK_BOX (display->priv->vbox), GTK_WIDGET (web_view), expandable, TRUE, 0);
+	display->widgets = g_list_append (display->widgets, GTK_WIDGET (web_view));
+	gtk_widget_show_all (GTK_WIDGET (web_view));
+
+}
+
+static void
+mail_display_class_init (EMailDisplayClass *class)
 {
 	GObjectClass *object_class;
 	GtkWidgetClass *widget_class;
@@ -495,19 +522,14 @@ e_mail_display_class_init (EMailDisplayClass *class)
 static void
 e_mail_display_init (EMailDisplay *display)
 {
-	GtkScrolledWindow *scrolled_window;
 	SoupSession *session;
 	SoupSessionFeature *feature;
 	GValue margin = {0};
 
 	display->priv = E_MAIL_DISPLAY_GET_PRIVATE (display);
 
-	scrolled_window = GTK_SCROLLED_WINDOW (display);
-	gtk_scrolled_window_set_policy (scrolled_window, GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
-	gtk_scrolled_window_set_shadow_type (scrolled_window, GTK_SHADOW_NONE);
-
-	display->priv->vbox = gtk_vbox_new (FALSE, 0);
-	gtk_scrolled_window_add_with_viewport (scrolled_window, display->priv->vbox);
+	display->priv->vbox = gtk_vbox_new (FALSE, 10);
+	gtk_container_add (GTK_CONTAINER (display), display->priv->vbox);
 	g_value_init (&margin, G_TYPE_INT);
 	g_value_set_int (&margin, 10);
 	g_object_set_property (G_OBJECT (display->priv->vbox), "margin", &margin);
@@ -604,6 +626,8 @@ e_mail_display_load (EMailDisplay *display,
 		     const gchar *msg_uri)
 {
 	EWebView *web_view;
+	EAttachmentStore *attachment_store;
+	GtkWidget *attachment_bar;
 	EMFormatPURI *puri;
 	EMFormat *emf = (EMFormat *) display->priv->formatter;
 	gchar *uri;
@@ -612,34 +636,44 @@ e_mail_display_load (EMailDisplay *display,
 
 	g_return_if_fail (E_IS_MAIL_DISPLAY (display));
 
+	/* Don't use gtk_widget_show_all() to display all widgets at once,
+	   it makes all parts of EMailAttachmentBar visible and that's not
+	   what we want.
+	   FIXME: Maybe using gtk_widget_set_no_show_all() in EAttachmentView
+	          could help...
+	*/
+
 	/* First remove all widgets left after previous message */
 	e_mail_display_clear (display);
 
 	box = GTK_BOX (display->priv->vbox);
+	gtk_widget_show (display->priv->vbox);
 
 	/* Headers webview */
 	web_view = mail_display_setup_webview (display);
-	display->widgets = g_list_append (display->widgets, GTK_WIDGET (web_view));
-	gtk_box_pack_start (box, GTK_WIDGET (web_view),
-			TRUE, TRUE, 0);
+	mail_display_insert_web_view (display, web_view, FALSE);
 	uri = em_format_build_mail_uri (emf->folder, emf->message_uid, "headers");
 	e_web_view_load_uri (web_view, uri);
 	g_free (uri);
 
 	/* Attachment bar */
+	attachment_store = NULL;
 	puri = g_hash_table_lookup (emf->mail_part_table, "attachment-bar:");
 	if (puri && puri->widget_func) {
-		GtkWidget *widget = puri->widget_func (emf, puri, NULL);
-		display->widgets = g_list_append (display->widgets, widget);
-		gtk_box_pack_start (box, widget, TRUE, TRUE, 0);
+		attachment_bar = puri->widget_func (emf, puri, NULL);
+		display->widgets = g_list_append (display->widgets, attachment_bar);
+		gtk_box_pack_start (box, attachment_bar, TRUE, TRUE, 0);
+		attachment_store = e_attachment_view_get_store (E_ATTACHMENT_VIEW (attachment_bar));
+		gtk_widget_show (attachment_bar);
 	}
 
 	for (iter = emf->mail_part_list; iter; iter = iter->next) {
+		GtkWidget *widget = NULL;
+
 		puri = iter->data;
 		uri = em_format_build_mail_uri (emf->folder, emf->message_uid, puri->uri);
 
 		if (puri->widget_func && strcmp (puri->uri, "attachment-bar:") != 0) {
-			GtkWidget *widget;
 
 			widget = puri->widget_func (emf, puri, NULL);
 			if (!widget) {
@@ -647,21 +681,29 @@ e_mail_display_load (EMailDisplay *display,
 				continue;
 			}
 			display->widgets = g_list_append (display->widgets, widget);
-			gtk_box_pack_start (box, widget,
-					TRUE, TRUE, 0);
+			gtk_box_pack_start (box, widget, TRUE, TRUE, 0);
+			gtk_widget_show (widget);
+
+		}
 
-		} else if (puri->write_func) {
+		if ((!puri->is_attachment && puri->write_func) || (puri->is_attachment && puri->write_func && puri->widget_func)) {
 			web_view = mail_display_setup_webview (display);
-			display->widgets = g_list_append (display->widgets, GTK_WIDGET (web_view));
-			gtk_box_pack_start (box, GTK_WIDGET (web_view),
-					TRUE, TRUE, 0);
+			mail_display_insert_web_view (display, web_view, TRUE);
 			e_web_view_load_uri (web_view, uri);
+
+			if (widget) {
+				g_object_bind_property (widget, "expanded",
+					web_view, "visible", G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE);
+			}
+
 		}
 
 		g_free (uri);
 	}
 
-	gtk_widget_show_all (display->priv->vbox);
+	/* Don't display EAttachmentBar if it's empty. */
+	if (attachment_store && e_attachment_store_get_num_attachments (attachment_store) == 0)
+		gtk_widget_hide (attachment_bar);
 }
 
 void
diff --git a/mail/em-format-html-display.c b/mail/em-format-html-display.c
index e1b0c53..a866a56 100644
--- a/mail/em-format-html-display.c
+++ b/mail/em-format-html-display.c
@@ -418,6 +418,7 @@ efhd_parse_attachment (EMFormat *emf,
 	puri->attachment = e_attachment_new ();
 	puri->attachment_view_part_id = g_strdup (classid);
 	puri->description = html;
+	puri->handle = info->handler;
 
 	cid = camel_mime_part_get_content_id (part);
 	if (cid)
@@ -910,7 +911,6 @@ efhd_attachment_button (EMFormat *emf,
 	GFileInfo *finfo;
 	const gchar *name;
 	GtkWidget *widget;
-	GtkWidget *box;
 	gpointer parent;
 	guint32 size = 0;
 
@@ -972,32 +972,11 @@ efhd_attachment_button (EMFormat *emf,
 		e_attachment_set_file_info (info->attachment, fileinfo);
 	}
 
-	box = gtk_hbox_new (FALSE, 5);
-	gtk_widget_show (box);
-
 	widget = e_attachment_button_new (efhd->priv->attachment_view);
 	e_attachment_button_set_attachment (
 		E_ATTACHMENT_BUTTON (widget), attachment);
 	gtk_widget_set_can_focus (widget, TRUE);
 	gtk_widget_show (widget);
-	gtk_box_pack_start (GTK_BOX (box), widget, FALSE, FALSE, 5);
-
-	finfo = e_attachment_get_file_info (info->attachment);
-	name = NULL;
-	if (finfo)
-		name = g_file_info_get_display_name (finfo);
-
-	if (name == NULL)
-		name = _("attachment.dat");
-
-	widget = gtk_label_new (name);
-	gtk_widget_show (widget);
-	gtk_box_pack_start (GTK_BOX (box), widget, FALSE, FALSE, 5);
-
-	/* Makes the EAttachmentButton and label with name to be aligned to left */
-	widget = gtk_label_new ("");
-	gtk_widget_show (widget);
-	gtk_box_pack_start (GTK_BOX (box), widget, TRUE, TRUE, 5);
 
 	/* FIXME Not sure why the expanded callback can't just use
 	 *       info->puri.format, but there seems to be lifecycle
@@ -1005,7 +984,7 @@ efhd_attachment_button (EMFormat *emf,
 	 *       a reference count? */
 	g_object_set_data (G_OBJECT (widget), "efh", efh);
 
-	return box;
+	return widget;
 }
 
 static GtkWidget*