[geary/wip/713739-inline: 3/37] Basic inline composition

[Jim Nelson <jnelson src gnome org>]

commit fc6174415986c4bf831d736426555ec0a20c3a47
Author: Robert Schroll <rschroll gmail com>
Date:   Tue May 21 02:17:09 2013 -0400

    Basic inline composition
    
    Many of the details don't work, or don't work well, but the basics are
    in place.

 src/CMakeLists.txt                                 |    1 +
 src/client/composer/composer-embed.vala            |  106 ++++++++++++++++++++
 src/client/composer/composer-widget.vala           |    4 +-
 .../conversation-viewer/conversation-viewer.vala   |    2 +-
 4 files changed, 110 insertions(+), 3 deletions(-)
---
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4cfa0a9..1753a60 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -323,6 +323,7 @@ client/components/status-bar.vala
 client/components/stock.vala
 
 client/composer/composer-container.vala
+client/composer/composer-embed.vala
 client/composer/composer-toolbar.vala
 client/composer/composer-widget.vala
 client/composer/composer-window.vala
diff --git a/src/client/composer/composer-embed.vala b/src/client/composer/composer-embed.vala
new file mode 100644
index 0000000..3d78e6d
--- /dev/null
+++ b/src/client/composer/composer-embed.vala
@@ -0,0 +1,106 @@
+/* Copyright 2013 Yorba Foundation
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution.
+ */
+
+public class ComposerEmbed : Gtk.Box, ComposerContainer {
+    
+    public ulong signal_id;
+    private string embed_id;
+    private ComposerWidget composer;
+    
+    public Gtk.Window top_window {
+        get { return (Gtk.Window) get_toplevel(); }
+    }
+    
+    private static ConversationViewer conversation_viewer {
+        get { return GearyApplication.instance.controller.main_window.conversation_viewer; }
+    }
+    
+    public static bool create_embed(ComposerWidget composer, Geary.Email? referred) {
+        if (referred == null)
+            return false;
+        
+        WebKit.DOM.HTMLElement? email_element = conversation_viewer.web_view.get_dom_document()
+            .get_element_by_id(conversation_viewer.get_div_id(referred.id)) as WebKit.DOM.HTMLElement;
+        if (email_element == null)
+            return false;
+        
+        string id = "%x".printf(Random.next_int());
+        ComposerEmbed plugin = new ComposerEmbed(id);
+        plugin.signal_id = conversation_viewer.web_view.create_plugin_widget.connect(() => {
+            conversation_viewer.web_view.disconnect(plugin.signal_id);
+            return plugin;
+        });
+        
+        try {
+            conversation_viewer.web_view.settings.enable_plugins = true;
+            email_element.insert_adjacent_html("afterend",
+                @"<embed width='100%' height='600' type='composer' id='$id' />");
+        } catch (Error error) {
+            debug("Error creating embed element: %s", error.message);
+            return false;
+        } finally {
+            conversation_viewer.web_view.settings.enable_plugins = false;
+        }
+        plugin.insert_composer(composer);
+        return true;
+    }
+    
+    public ComposerEmbed(string embed_id) {
+        Object(orientation: Gtk.Orientation.VERTICAL);
+        this.embed_id = embed_id;
+        
+        Gtk.Toolbar toolbar = new Gtk.Toolbar();
+        toolbar.set_icon_size(Gtk.IconSize.MENU);
+        Gtk.ToolButton close = new Gtk.ToolButton.from_stock("gtk-close");
+        Gtk.ToolButton detach = new Gtk.ToolButton.from_stock("gtk-goto-top");
+        Gtk.SeparatorToolItem filler = new Gtk.SeparatorToolItem();
+        filler.set_expand(true);
+        filler.set_draw(false);
+        toolbar.insert(filler, -1);
+        toolbar.insert(detach, -1);
+        toolbar.insert(close, -1);
+        pack_start(toolbar, false, false);
+        
+        close.clicked.connect(on_close);
+        detach.clicked.connect(on_detach);
+    }
+    
+    private void insert_composer(ComposerWidget composer) {
+        pack_start(composer, true, true);
+        show_all();
+        this.composer = composer;
+    }
+    
+    private void on_close() {
+        if (composer.should_close())
+            close();
+    }
+    
+    private void on_detach() {
+        remove(composer);
+        new ComposerWindow(composer);
+        close();
+    }
+    
+    public void present() {
+        conversation_viewer.web_view.get_dom_document().get_element_by_id(embed_id).scroll_into_view(true);
+    }
+    
+    public unowned Gtk.Widget get_focus() {
+        return top_window.get_focus();
+    }
+    
+    private void close() {
+        WebKit.DOM.Element embed = 
conversation_viewer.web_view.get_dom_document().get_element_by_id(embed_id);
+        try{
+            embed.parent_element.remove_child(embed);
+        } catch (Error error) {
+            warning("Could not remove embed from WebView: %s", error.message);
+        }
+        destroy();  // We seem to need this to ensure the ComposerWidget is destroyed.
+    }
+}
+
diff --git a/src/client/composer/composer-widget.vala b/src/client/composer/composer-widget.vala
index 580ec06..5fabb71 100644
--- a/src/client/composer/composer-widget.vala
+++ b/src/client/composer/composer-widget.vala
@@ -194,7 +194,7 @@ public class ComposerWidget : Gtk.EventBox {
     }
     
     public ComposerWidget(Geary.Account account, ComposeType compose_type,
-        Geary.Email? referred = null, bool is_referred_draft = false, bool in_window = true) {
+        Geary.Email? referred = null, bool is_referred_draft = false) {
         this.account = account;
         this.compose_type = compose_type;
         
@@ -461,7 +461,7 @@ public class ComposerWidget : Gtk.EventBox {
         if (!from_multiple.visible)
             open_drafts_folder_async.begin(cancellable_drafts);
         
-        if (in_window)
+        if (!ComposerEmbed.create_embed(this, referred))
             new ComposerWindow(this);
     }
     
diff --git a/src/client/conversation-viewer/conversation-viewer.vala 
b/src/client/conversation-viewer/conversation-viewer.vala
index d81fb1c..ecad528 100644
--- a/src/client/conversation-viewer/conversation-viewer.vala
+++ b/src/client/conversation-viewer/conversation-viewer.vala
@@ -223,7 +223,7 @@ public class ConversationViewer : Gtk.Box {
     }
     
     // Converts an email ID into HTML ID used by the <div> for the email.
-    private string get_div_id(Geary.EmailIdentifier id) {
+    public string get_div_id(Geary.EmailIdentifier id) {
         return "message_%s".printf(id.to_string());
     }