[anjuta] git: Implement revision diff viewing

[James Liggett <jrliggett src gnome org>]

commit 1202def06e442796a164d48e96d707250d2b1575
Author: James Liggett <jrliggett cox net>
Date:   Sat Dec 18 17:19:43 2010 -0800

    git: Implement revision diff viewing

 plugins/git/git-diff-pane.c |   53 +++++++++++++++++++++++++++++++++++++++++++
 plugins/git/git-diff-pane.h |    4 +++
 plugins/git/git-log-pane.c  |   22 +++++++++++++++++
 plugins/git/git-log-pane.h  |    1 +
 plugins/git/plugin.c        |   16 +++++++++++++
 5 files changed, 96 insertions(+), 0 deletions(-)
---
diff --git a/plugins/git/git-diff-pane.c b/plugins/git/git-diff-pane.c
index 44cbde4..dfb3d30 100644
--- a/plugins/git/git-diff-pane.c
+++ b/plugins/git/git-diff-pane.c
@@ -49,4 +49,57 @@ on_diff_button_clicked (GtkAction *action, Git *plugin)
 
 	anjuta_command_start (ANJUTA_COMMAND (diff_command));
 }
+
+void
+on_commit_diff_button_clicked (GtkAction *action, Git *plugin)
+{
+	GitRevision *revision;
+	gchar *sha;
+	gchar *short_sha;
+	gchar *editor_name;
+	IAnjutaDocumentManager *document_manager;
+	IAnjutaEditor *editor;
+	GitDiffTreeCommand *diff_command;
+	
+	revision = git_log_pane_get_selected_revision (GIT_LOG_PANE (plugin->log_pane));
+	
+	if (revision)
+	{
+		sha = git_revision_get_sha (revision);
+		short_sha = git_revision_get_short_sha (revision);
+		editor_name = g_strdup_printf ("Commit %s.diff", short_sha);
+		
+		document_manager = anjuta_shell_get_interface (ANJUTA_PLUGIN (plugin)->shell,
+													   IAnjutaDocumentManager, 
+													   NULL);
+		editor = ianjuta_document_manager_add_buffer (document_manager, 
+													  editor_name,
+													  "", NULL);
+		
+		diff_command = git_diff_tree_command_new (plugin->project_root_directory,
+												  sha);
+		
+		g_signal_connect (G_OBJECT (diff_command), "data-arrived",
+						  G_CALLBACK (git_pane_send_raw_output_to_editor),
+						  editor);
+		
+		g_signal_connect (G_OBJECT (diff_command), "command_finished",
+						  G_CALLBACK (git_pane_report_errors),
+						  plugin);
+
+		g_signal_connect (G_OBJECT (diff_command), "command_finished",
+						  G_CALLBACK (g_object_unref),
+						  NULL);
+
+		
+		anjuta_command_start (ANJUTA_COMMAND (diff_command));
+
+		g_object_unref (revision);
+		g_free (sha);
+		g_free (short_sha);
+		g_free (editor_name);
+	}
+	else
+		anjuta_util_dialog_error (NULL, _("No revision selected"));
+}
  
\ No newline at end of file
diff --git a/plugins/git/git-diff-pane.h b/plugins/git/git-diff-pane.h
index 556ccb1..c24e95f 100644
--- a/plugins/git/git-diff-pane.h
+++ b/plugins/git/git-diff-pane.h
@@ -23,8 +23,12 @@
 #include <libanjuta/interfaces/ianjuta-document-manager.h>
 #include <libanjuta/interfaces/ianjuta-editor.h>
 #include "git-pane.h"
+#include "git-log-pane.h"
 #include "git-diff-command.h"
+#include "git-diff-tree-command.h"
+#include "git-revision.h"
 
 void on_diff_button_clicked (GtkAction *action, Git *plugin);
+void on_commit_diff_button_clicked (GtkAction *action, Git *plugin);
 
 #endif
\ No newline at end of file
diff --git a/plugins/git/git-log-pane.c b/plugins/git/git-log-pane.c
index 1cdd0a5..e0601a8 100644
--- a/plugins/git/git-log-pane.c
+++ b/plugins/git/git-log-pane.c
@@ -1042,3 +1042,25 @@ git_log_pane_set_working_directory (GitLogPane *self,
 {
 	/* TODO: Add public function implementation here */
 }
+
+GitRevision *
+git_log_pane_get_selected_revision (GitLogPane *self)
+{
+	GtkTreeView *log_view;
+	GtkTreeSelection *selection;
+	GitRevision *revision;
+	GtkTreeIter iter;
+
+	log_view = GTK_TREE_VIEW (gtk_builder_get_object (self->priv->builder,
+	                                                  "log_view"));
+	selection = gtk_tree_view_get_selection (log_view);
+	revision = NULL;
+
+	if (gtk_tree_selection_get_selected (selection, NULL, &iter))
+	{
+		gtk_tree_model_get (GTK_TREE_MODEL (self->priv->log_model), &iter,
+		                    LOG_COL_REVISION, &revision, -1);
+	}
+
+	return revision;
+}
diff --git a/plugins/git/git-log-pane.h b/plugins/git/git-log-pane.h
index 0b112c6..95d0f95 100644
--- a/plugins/git/git-log-pane.h
+++ b/plugins/git/git-log-pane.h
@@ -57,6 +57,7 @@ GType git_log_pane_get_type (void) G_GNUC_CONST;
 AnjutaDockPane *git_log_pane_new (Git *plugin);
 void git_log_pane_set_working_directory (GitLogPane *self, 
                                          const gchar *working_directory);
+GitRevision *git_log_pane_get_selected_revision (GitLogPane *self);
 
 G_END_DECLS
 
diff --git a/plugins/git/plugin.c b/plugins/git/plugin.c
index c01d538..46ec83b 100644
--- a/plugins/git/plugin.c
+++ b/plugins/git/plugin.c
@@ -360,6 +360,22 @@ static AnjutaCommandBarEntry log_entries[] =
 	{
 		ANJUTA_COMMAND_BAR_ENTRY_FRAME,
 		"NULL",
+		N_("Revision tools"),
+		NULL,
+		NULL,
+		NULL
+	},
+	{
+		ANJUTA_COMMAND_BAR_ENTRY_BUTTON,
+		"ShowCommitDiff",
+		N_("Show commit diff"),
+		N_("Show a diff of the selected revision"),
+		GTK_STOCK_ZOOM_100,
+		G_CALLBACK (on_commit_diff_button_clicked)
+	},
+	{
+		ANJUTA_COMMAND_BAR_ENTRY_FRAME,
+		"NULL",
 		N_("Reset/Revert"),
 		NULL,
 		NULL,