[geary/wip/765516-gtk-widget-conversation-viewer: 14/78] Reenable and update code for embedded message composer.



commit f3fa0544e83f73a54373e6071225d384003cc83b
Author: Michael James Gratton <mike vee net>
Date:   Tue Apr 12 01:06:09 2016 +1000

    Reenable and update code for embedded message composer.
    
    The embedded composer is now added to the the conversation list
    box. Still needs some work to fix focus and scrolling issues, also to
    insert the composer in the right place in the list.
    
    * src/client/components/main-window.vala (MainWindow::set_styling):
      Adjust theme CSS to make padding around embedded coposer not so
      terrible. Fix style for embedded headerbar.
    
    * src/client/composer/composer-embed.vala: Don't attempt to up-manage
      it's parent's state, since the parent has a much better idea of how
      best to do that. Instead of passing in a ConversationViewer, just pass
      in a Gtk.ScrolledWindow that needs to be adjusted as the embededded
      editor and add some signals needed by the ConversationViewer. Reenabled
      some code needed to get scroll event passthrough working.
    
    * src/client/conversation-viewer/conversation-viewer.vala: Remove old
      embedded composer code. Adjust conversation_listbox callbacks to handle
      the embedded composer being present.
      (ConversationViewer::get_selected_message): Fixed to actually return a
      message.
      (ConversationViewer::do_embedded_composer): New method to set up an
      embedded composer.
    
    * src/client/application/geary-controller.vala
      (GearyController::create_compose_widget_async): Call new
      ConversationViewer::do_embedded_composer to let it set up a new
      embedded composer when needed.

 src/client/application/geary-controller.vala       |    7 +-
 src/client/composer/composer-embed.vala            |   83 ++++++-------------
 .../conversation-viewer/conversation-viewer.vala   |   57 ++++++++++----
 ui/geary.css                                       |   11 ++-
 4 files changed, 81 insertions(+), 77 deletions(-)
---
diff --git a/src/client/application/geary-controller.vala b/src/client/application/geary-controller.vala
index 82349d3..9613d5a 100644
--- a/src/client/application/geary-controller.vala
+++ b/src/client/application/geary-controller.vala
@@ -2231,10 +2231,11 @@ public class GearyController : Geary.BaseObject {
         
         if (inline) {
             if (widget.state == ComposerWidget.ComposerState.NEW ||
-                widget.state == ComposerWidget.ComposerState.PANED)
+                widget.state == ComposerWidget.ComposerState.PANED) {
                 main_window.conversation_viewer.do_compose(widget);
-            else
-                new ComposerEmbed(widget, main_window.conversation_viewer, referred); // is_draft
+            } else {
+                main_window.conversation_viewer.do_embedded_composer(widget, referred);
+            }
         } else {
             new ComposerWindow(widget);
             widget.state = ComposerWidget.ComposerState.DETACHED;
diff --git a/src/client/composer/composer-embed.vala b/src/client/composer/composer-embed.vala
index 04da374..8d46174 100644
--- a/src/client/composer/composer-embed.vala
+++ b/src/client/composer/composer-embed.vala
@@ -8,53 +8,38 @@ public class ComposerEmbed : Gtk.EventBox, ComposerContainer {
     
     private const int MIN_EDITOR_HEIGHT = 200;
     
+    public Geary.Email referred;
+
     private ComposerWidget composer;
-    private ConversationViewer conversation_viewer;
-    private string embed_id;
+    private Gtk.ScrolledWindow outer_scroller;
     private bool setting_inner_scroll;
     private bool scrolled_to_bottom = false;
-    //private double inner_scroll_adj_value;
+    private double inner_scroll_adj_value;
     private int inner_view_height;
     private int min_height = MIN_EDITOR_HEIGHT;
     private bool has_accel_group = false;
-    
-    public Gtk.Window top_window {
+    private Gtk.Window top_window {
         get { return (Gtk.Window) get_toplevel(); }
     }
     
-    public ComposerEmbed(ComposerWidget composer, ConversationViewer conversation_viewer,
-        Geary.Email referred) {
+    public signal void loaded();
+    public signal void vanished();
+    
+    public ComposerEmbed(Geary.Email referred,
+                         ComposerWidget composer,
+                         Gtk.ScrolledWindow outer_scroller) {
+        this.referred = referred;
         this.composer = composer;
-        this.conversation_viewer = conversation_viewer;
+        this.outer_scroller = outer_scroller;
         halign = Gtk.Align.FILL;
         valign = Gtk.Align.FILL;
-        
-        WebKit.DOM.HTMLElement? email_element = null;
-        // email_element = conversation_viewer.web_view.get_dom_document().get_element_by_id(
-        //     conversation_viewer.get_div_id(referred.id)) as WebKit.DOM.HTMLElement;
-        // embed_id = referred.id.to_string() + "_reply";
-        // if (email_element == null) {
-        //     warning("Embedded composer could not find email to follow.");
-        //     email_element = conversation_viewer.web_view.get_dom_document().get_element_by_id(
-        //         "placeholder") as WebKit.DOM.HTMLElement;
-        // }
-        
-        try {
-            email_element.insert_adjacent_html("afterend",
-                @"<div id='$embed_id' class='composer_embed'></div>");
-        } catch (Error error) {
-            debug("Error creating embed element: %s", error.message);
-            return;
-        }
-        
+
         add(composer);
         realize.connect(on_realize);
         composer.editor.focus_in_event.connect(on_focus_in);
         composer.editor.focus_out_event.connect(on_focus_out);
         composer.editor.document_load_finished.connect(on_loaded);
-        conversation_viewer.compose_overlay.add_overlay(this);
         show();
-        present();
     }
     
     private void on_realize() {
@@ -78,7 +63,7 @@ public class ComposerEmbed : Gtk.EventBox, ComposerContainer {
         }
         Idle.add(() => {
             recalc_height();
-            conversation_viewer.compose_overlay.queue_resize();
+            loaded();
             return false;
         });
     }
@@ -193,12 +178,12 @@ public class ComposerEmbed : Gtk.EventBox, ComposerContainer {
     }
     
     private void on_inner_scroll(Gtk.Adjustment adj) {
-        //double delta = adj.value - inner_scroll_adj_value;
-        //inner_scroll_adj_value = adj.value;
-        //if (delta != 0 && !setting_inner_scroll) {
-        //    Gtk.Adjustment outer_adj = conversation_viewer.web_view.vadjustment;
-        //    outer_adj.set_value(outer_adj.value + delta);
-        //}
+        double delta = adj.value - inner_scroll_adj_value;
+        inner_scroll_adj_value = adj.value;
+        if (delta != 0 && !setting_inner_scroll) {
+            Gtk.Adjustment outer_adj = outer_scroller.vadjustment;
+            outer_adj.set_value(outer_adj.value + delta);
+        }
     }
     
     private void on_adjust_changed(Gtk.Adjustment adj) {
@@ -228,30 +213,21 @@ public class ComposerEmbed : Gtk.EventBox, ComposerContainer {
         if (view_height != inner_view_height || min_height != base_height + MIN_EDITOR_HEIGHT) {
             inner_view_height = view_height;
             min_height = base_height + MIN_EDITOR_HEIGHT;
+
             // Calculate height widget should be to avoid scrolling in editor
-            //int widget_height = int.max(view_height + base_height - 2, min_height); //? about 2
-            // WebKit.DOM.Element embed = conversation_viewer.web_view
-            //     .get_dom_document().get_element_by_id(embed_id);
-            // if (embed != null) {
-            //     try {
-            //         embed.style.set_property("height", @"$widget_height", "");
-            //     } catch (Error error) {
-            //         debug("Error setting height of composer widget");
-            //     }
-            // }
+            int widget_height = int.max(view_height + base_height - 2, min_height); //? about 2
+            set_size_request(-1, widget_height);
         }
         return false;
     }
     
     private bool on_inner_scroll_event(Gdk.EventScroll event) {
-        //conversation_viewer.web_view.scroll_event(event);
+        outer_scroller.scroll_event(event);
         return true;
     }
     
     public void present() {
         top_window.present();
-        // conversation_viewer.web_view.get_dom_document().get_element_by_id(embed_id)
-        //     .scroll_into_view_if_needed(false);
     }
     
     public unowned Gtk.Widget get_focus() {
@@ -263,19 +239,12 @@ public class ComposerEmbed : Gtk.EventBox, ComposerContainer {
         composer.state = ComposerWidget.ComposerState.DETACHED;
         composer.editor.focus_in_event.disconnect(on_focus_in);
         composer.editor.focus_out_event.disconnect(on_focus_out);
-        
-        // 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);
-        // }
+        vanished();
     }
     
     public void close_container() {
         if (visible)
             vanish();
-        conversation_viewer.compose_overlay.remove(this);
     }
 }
 
diff --git a/src/client/conversation-viewer/conversation-viewer.vala 
b/src/client/conversation-viewer/conversation-viewer.vala
index b5f9d99..8aa7296 100644
--- a/src/client/conversation-viewer/conversation-viewer.vala
+++ b/src/client/conversation-viewer/conversation-viewer.vala
@@ -86,9 +86,6 @@ public class ConversationViewer : Gtk.Stack {
     // Current conversation, or null if none.
     public Geary.App.Conversation? current_conversation = null;
     
-    // Overlay containing any inline composers.
-    public ScrollableOverlay compose_overlay;
-
     // Stack pages
     [GtkChild]
     private Gtk.Image splash_page;
@@ -135,13 +132,23 @@ public class ConversationViewer : Gtk.Stack {
     public ConversationViewer() {
         // Setup the conversation list box
         conversation_listbox.set_sort_func((row1, row2) => {
-                return Geary.Email.compare_sent_date_ascending(
-                    ((ConversationMessage) row1.get_child()).email,
-                    ((ConversationMessage) row2.get_child()).email
-                );
+                // If not a ConversationMessage, will be an
+                // embedded composer and should always be last.
+                ConversationMessage? msg1 = row1.get_child() as ConversationMessage;
+                if (msg1 == null) {
+                    return 1;
+                }
+                ConversationMessage? msg2 = row2.get_child() as ConversationMessage;
+                if (msg2 == null) {
+                    return -1;
+                }
+                return Geary.Email.compare_sent_date_ascending(msg1.email, msg2.email);
             });
         conversation_listbox.row_activated.connect((box, row) => {
-                if (email_to_row.size > 1) {
+                // If not a ConversationMessage, will be an
+                // embedded composer and should not be activated.
+                ConversationMessage? msg = row.get_child() as ConversationMessage;
+                if (email_to_row.size > 1 && msg != null) {
                     toggle_show_message(row);
                 }
             });
@@ -171,9 +178,6 @@ public class ConversationViewer : Gtk.Stack {
         GearyApplication.instance.controller.folder_selected.connect(on_folder_selected);
         
GearyApplication.instance.controller.conversation_count_changed.connect(on_conversation_count_changed);
         
-        //compose_overlay = new ScrollableOverlay(web_view);
-        //conversation_viewer_scrolled.add(compose_overlay);
-
         //conversation_find_bar = new ConversationFindBar(web_view);
         //conversation_find_bar.no_show_all = true;
         //conversation_find_bar.close.connect(() => { fsm.issue(SearchEvent.CLOSE_FIND_BAR); });
@@ -187,9 +191,10 @@ public class ConversationViewer : Gtk.Stack {
     }
     
     public Geary.Email? get_selected_message(out string? quote) {
-        // XXX
-        quote = "";
-        return null;
+        // XXX check to see if there is a message with selected text,
+        // if so return that
+        quote = null;
+        return messages.is_empty ? null : messages.last();
     }
     
     public void check_mark_read() {
@@ -270,6 +275,30 @@ public class ConversationViewer : Gtk.Stack {
         set_visible_child(composer_page);
     }
     
+    public void do_embedded_composer(ComposerWidget composer, Geary.Email referred) {
+        state = ViewState.CONVERSATION;
+        
+        ComposerEmbed embed = new ComposerEmbed(
+            referred, composer, conversation_page
+        );
+        embed.set_property("name", "composer_embed"); // Bug 764622
+
+        Gtk.ListBoxRow row = new Gtk.ListBoxRow();
+        row.get_style_context().add_class("composer");
+        row.get_style_context().add_class("frame");
+        row.show();
+        row.add(embed);
+        conversation_listbox.add(row);
+
+        embed.loaded.connect((box) => {
+                row.grab_focus();
+            });
+        embed.vanished.connect((box) => {
+                conversation_listbox.remove(row);
+            });
+
+    }
+    
     // Removes all displayed e-mails from the view.
     private void clear() {
         foreach (Gtk.Widget child in conversation_listbox.get_children()) {
diff --git a/ui/geary.css b/ui/geary.css
index 5ccd07f..5d85843 100644
--- a/ui/geary.css
+++ b/ui/geary.css
@@ -58,7 +58,7 @@ row.geary-folder-popover-list-row > label {
 }
 
 #conversation_listbox {
-  padding: 18px 18px 0;
+  padding: 18px 18px calc(18px/2);
 }
 #conversation_listbox > row {
   margin: 0;
@@ -67,8 +67,9 @@ row.geary-folder-popover-list-row > label {
   box-shadow: 0 4px 8px 1px rgba(0,0,0,0.4);
   transition: margin 0.1s;
 }
-#conversation_listbox > row.show-message {
-  margin-bottom: 18px;
+#conversation_listbox > row.show-message,
+#conversation_listbox > row.composer {
+  margin-bottom: calc(18px/2);
   border-bottom-width: 1px;
 }
 
@@ -81,3 +82,7 @@ row.geary-folder-popover-list-row > label {
 #ConversationMessage separator {
   margin: 12px 0;
 }
+
+#composer_embed headerbar {
+  border-radius: 0px;
+}


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