[gnome-builder/wip/libide-merge] add keybindings to search for word under cursor

[Christian Hergert <chergert src gnome org>]

commit fcf6c1a0c14f711ac99fab89339745ab8aabb469
Author: Christian Hergert <christian hergert me>
Date:   Sat Mar 21 19:52:33 2015 -0700

    add keybindings to search for word under cursor
    
    This is useful to quickly search documentation for the word currently
    underneath the cursor. This is similar to <shift>k in vim, except that
    we are using devhelp rather than man pages.

 data/keybindings/default.css |    8 +++++++-
 data/keybindings/emacs.css   |    7 +++++++
 data/keybindings/vim.css     |    8 ++++++++
 libide/ide-source-view.c     |   11 +++++++++++
 libide/ide-source-view.h     |    1 +
 src/editor/gb-editor-frame.c |   27 +++++++++++++++++++++++++++
 6 files changed, 61 insertions(+), 1 deletions(-)
---
diff --git a/data/keybindings/default.css b/data/keybindings/default.css
index 49693ca..8d085fc 100644
--- a/data/keybindings/default.css
+++ b/data/keybindings/default.css
@@ -16,7 +16,13 @@
   bind "<ctrl>Page_Down" { "action" ("view-stack", "next-view", "") };
   bind "<ctrl>KP_Page_Down" { "action" ("view-stack", "next-view", "") };
 
-  /* toggle header/source */
+  bind "F2" { "clear-selection" ()
+              "movement" (previous-word-end, 0, 1, 1)
+              "movement" (next-word-start, 0, 1, 0)
+              "movement" (next-word-end, 1, 0, 1)
+              "request-documentation" ()
+              "clear-count" ()
+              "clear-selection" () };
   bind "F4" { "action" ("view", "find-other-file", "") };
   bind "F9" { "action" ("view", "preview", "") };
 }
diff --git a/data/keybindings/emacs.css b/data/keybindings/emacs.css
index 630db06..67e0008 100644
--- a/data/keybindings/emacs.css
+++ b/data/keybindings/emacs.css
@@ -56,6 +56,13 @@
   bind "<alt>p" { "move-error" (up) };
   bind "<ctrl>j" { "action" ("view-grid", "focus-neighbor", "3") };
   bind "<shift><ctrl>j" { "action" ("view-stack", "split-down", "") };
+  bind "F2" { "clear-selection" ()
+              "movement" (previous-word-end, 0, 1, 1)
+              "movement" (next-word-start, 0, 1, 0)
+              "movement" (next-word-end, 1, 0, 1)
+              "request-documentation" ()
+              "clear-count" ()
+              "clear-selection" () };
 
   /* swap between header/source */
   bind "<alt>o" { "action" ("view", "find-other-file", "") };
diff --git a/data/keybindings/vim.css b/data/keybindings/vim.css
index 215c84e..0fe27cf 100644
--- a/data/keybindings/vim.css
+++ b/data/keybindings/vim.css
@@ -180,6 +180,14 @@
                  "movement" (first-nonspace-char, 0, 1, 0)
                  "clear-count" () };
 
+  bind "<shift>k" { "clear-selection" ()
+                    "movement" (previous-word-end, 0, 1, 1)
+                    "movement" (next-word-start, 0, 1, 0)
+                    "movement" (next-word-end, 1, 0, 1)
+                    "request-documentation" ()
+                    "clear-count" ()
+                    "clear-selection" () };
+
   /* swallow the current character and go to insert */
   bind "s" { "begin-macro" ()
              "set-mode" ("vim-insert", permanent)
diff --git a/libide/ide-source-view.c b/libide/ide-source-view.c
index 00bd8b0..cbd356f 100644
--- a/libide/ide-source-view.c
+++ b/libide/ide-source-view.c
@@ -213,6 +213,7 @@ enum {
   PUSH_SELECTION,
   PUSH_SNIPPET,
   REPLAY_MACRO,
+  REQUEST_DOCUMENTATION,
   RESTORE_INSERT_MARK,
   SAVE_INSERT_MARK,
   SELECTION_THEATRIC,
@@ -5226,6 +5227,16 @@ ide_source_view_class_init (IdeSourceViewClass *klass)
                   1,
                   G_TYPE_BOOLEAN);
 
+  gSignals [REQUEST_DOCUMENTATION] =
+    g_signal_new ("request-documentation",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                  G_STRUCT_OFFSET (IdeSourceViewClass, request_documentation),
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE,
+                  0);
+
   gSignals [RESTORE_INSERT_MARK] =
     g_signal_new ("restore-insert-mark",
                   G_TYPE_FROM_CLASS (klass),
diff --git a/libide/ide-source-view.h b/libide/ide-source-view.h
index b622d1d..7235ed4 100644
--- a/libide/ide-source-view.h
+++ b/libide/ide-source-view.h
@@ -256,6 +256,7 @@ struct _IdeSourceViewClass
                                        const GtkTextIter       *location);
   void (*replay_macro)                (IdeSourceView           *self,
                                        gboolean                 use_count);
+  void (*request_documentation)       (IdeSourceView           *self);
   void (*restore_insert_mark)         (IdeSourceView           *self);
   void (*save_insert_mark)            (IdeSourceView           *self);
   void (*selection_theatric)          (IdeSourceView           *self,
diff --git a/src/editor/gb-editor-frame.c b/src/editor/gb-editor-frame.c
index d688d35..9e4b721 100644
--- a/src/editor/gb-editor-frame.c
+++ b/src/editor/gb-editor-frame.c
@@ -338,6 +338,27 @@ gb_editor_frame__source_view_focus_in_event (GbEditorFrame *self,
 }
 
 static void
+gb_editor_frame__source_view_request_documentation (GbEditorFrame *self,
+                                                    IdeSourceView *source_view)
+{
+  GtkTextBuffer *buffer;
+  GtkTextIter begin;
+  GtkTextIter end;
+  GVariant *param;
+  g_autofree gchar *text = NULL;
+
+  g_assert (GB_IS_EDITOR_FRAME (self));
+  g_assert (IDE_IS_SOURCE_VIEW (source_view));
+
+  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (source_view));
+  gtk_text_buffer_get_selection_bounds (buffer, &begin, &end);
+  text = gtk_text_iter_get_slice (&begin, &end);
+
+  param = g_variant_new_string (text);
+  gb_widget_activate_action (GTK_WIDGET (self), "workbench", "search-docs", param);
+}
+
+static void
 gb_editor_frame_constructed (GObject *object)
 {
   GbEditorFrame *self = (GbEditorFrame *)object;
@@ -356,6 +377,12 @@ gb_editor_frame_constructed (GObject *object)
                            self,
                            G_CONNECT_SWAPPED);
 
+  g_signal_connect_object (self->source_view,
+                           "request-documentation",
+                           G_CALLBACK (gb_editor_frame__source_view_request_documentation),
+                           self,
+                           G_CONNECT_SWAPPED);
+
   g_signal_connect_object (self->search_entry,
                            "key-press-event",
                            G_CALLBACK (gb_editor_frame__search_key_press_event),